WO2013008828A1 - Bearing device - Google Patents

Abstract

A bearing device is provided with an upper shoe (11), a lower shoe (12), an elastic body (13, 17) which is provided between the upper shoe (11) and the lower shoe (12), and an elastic deformation restraining body (16) which surrounds the elastic body (13, 17) at a position at which the side surface of the elastically deformed elastic body (13, 17) is close to or in contact with the elastic deformation restraining body (16). A protrusion (14, 18) or a recess (15, 19) is formed on the side surface of the elastic body (13, 17). The elastic body (13, 17) is surrounded by the upper shoe (11), the lower shoe (12), and the elastic deformation restraining body (16) and is in a substantially hermetically sealing state. The state of sealing by the elastic body (13, 17) changes to a higher degree of hermetic sealing as a load on the elastic body (13, 17) increases. Thus, the bearing device can exhibit vertical elastic characteristics suitable for a wide range of input loads varying from a small load to a large load.

Description

Bearing device

The present invention relates to a support device for supporting various structures such as buildings and bridges.
This application claims priority based on the following six Japanese patent applications filed in Japan, and is incorporated into this application by reference to this application.
(1) Japanese Patent Application No. 2011-153184 (Filing date: July 11, 2011)
(2) Japanese Patent Application No. 2011-153185 (Filing date: July 11, 2011)
(3) Japanese Patent Application No. 2011-202448 (Filing date: September 15, 2011)
(4) Japanese Patent Application No. 2011-202449 (Filing date: September 15, 2011)
(5) Japanese patent application number 2011-260919 (filing date: November 29, 2011)
(6) Japanese patent application number 2011-260918 (filing date: November 29, 2011)

As a support device for structures such as buildings and bridges, there is a rubber support in which rubber plates and iron plates are alternately laminated and bonded together by vulcanization (see Patent Document 1). In the rubber bearing, by constraining the displacement of the rubber, a device for improving the vertical spring rigidity and a device for improving the rotation follow-up performance are made. For example, in rubber bearings, rubber plates and iron plates are alternately laminated and vulcanized and bonded to reduce the fluidity of rubber and increase the rigidity of the vertical spring.

Also, in the sealed rubber bearing, the rubber plate is placed in the metal pot that serves as the lower shell, and the piston-shaped upper flange is placed on the rubber plate so that the rubber plate behaves in an incompressible fluid. It is comprised so that rotation tracking performance may be acquired by being restrained (refer patent document 2). This sealed rubber bearing is treated as a metal bearing because it does not have vertical flexibility.

Furthermore, in so-called compact bearings, in order to support a large vertical load, a concave portion is provided on each of the opposing surfaces of the upper and lower collars, and a rubber layer is disposed in each concave portion. Is prevented from bulging outward in the radial direction due to bending deformation, thereby improving the vertical spring rigidity (see Patent Document 3).

JP 2000-1820 A JP 2000-178922 A JP 2009-13773 A

The object of the present invention is to provide a novel bearing device capable of supporting a high load while expressing an appropriate vertical flexibility in accordance with the load from the load.

Specifically, an object is to provide a bearing device capable of expressing vertical spring performance suitable for a wide range of inputs from low loads to high loads.

Also, an object of the present invention is to provide a bearing device that can realize good rotation followability while increasing the surface pressure.

The elastic body constraint degree variable structure according to the present invention as the first embodiment is used as a support device for supporting various structures such as buildings and bridges, and includes a first rigid body, a second rigid body, And an elastic body disposed between the first rigid body and the second rigid body, and a restraining body that surrounds the elastic body at a position where the elastic body that is elastically deformed approaches or abuts. A convex portion or a concave portion is formed on either the side surface of the elastic body or the constraining surface of the constraining body. When an input greater than or equal to a predetermined value is made, the elastic body is elastically deformed so as to reduce the volume of the gap created by the convex portion and the concave portion, and the deformed elastic body abuts on the restraint body and / or Alternatively, the deformation of the elastic body is constrained by pressing. For example, the elastic body is surrounded by a first rigid body, a second rigid body, and a restraint body to be in a substantially sealed state, and changes to a higher sealed state as the load on the elastic body increases. In such an elastic body constraint variable structure, when a load is input, the elastic body is deformed so as to fill a gap formed by the concave portions between the convex portions according to the magnitude of the input, and the convex portions are deformed. The degree of pressure contact with the restraining surface of the elastic deformation restraining body increases. The restraining body restrains such deformation of the elastic body.

Here, the elastic body may be constituted by a laminated structure in which an elastic layer and a reinforcing plate are laminated, or may be constituted by a single elastic layer without including the reinforcing plate. When the elastic body has a laminated structure, a convex portion or a concave portion is preferably formed at one of the positions of the reinforcing plates or between the reinforcing plates, and the concave portion or the convex portion is formed at the other. When there is a reinforcing plate, the elastic body bulges between the reinforcing plates in a direction substantially perpendicular to the thickness direction of the elastic body when there is a load input. When a convex part is provided at a position between the reinforcing plates, the elastic body can be prevented from being excessively deformed by the elastic convex part of the elastic body being first pressed against the restraining surface of the restraining body. In particular, it is possible to prevent damage due to local distortion of the peripheral surface of the elastic body corresponding to the space between the reinforcing plates.

For example, the convex or concave portions of the elastic body can be effectively realized by forming them continuously or intermittently in the circumferential direction of the side surface of the elastic body or the constraining surface of the elastic deformation restraining body.

A gap may be formed between the side surface of the elastic body and the restraining surface of the restraining body. That is, the present invention is configured such that the convex portion of the elastic body is in contact with the restraining surface of the restraining body at least when a large load is applied. It is also preferable that the restraint surface of the restraint body and the convex portion of the elastic body are in contact with each other during assembly of the support device. In this case, the position of the elastic body can be easily positioned in the restraint body during assembly.

The restraining body may be provided integrally with the first rigid body, or may be provided integrally with the second rigid body.

In the present invention, the elastic body is surrounded by the first rigid body, the second rigid body, and the elastic deformation restraining body, so that a substantially sealed space portion is formed, and a small bearing area such as a sealed rubber bearing is formed. To achieve a high load bearing. At the same time, the support device can realize vertical flexible displacement with respect to the vertical load by providing a convex portion or a concave portion on the restraint surface of the elastic body or restraint body and providing a clearance. In addition, during the rotation action, the elastic body is deformed by the gaps between the convex portions or the concave portions, and good rotation followability can be realized.

In addition, by providing convex portions or concave portions on the restraint surface of the elastic body or restraint body and providing a gap, the amount of vertical displacement increases as the vertical load increases. The inclination (constraint degree or spring constant) of the graph representing the magnitude of the vertical load reaction force increases as the vertical displacement or the vertical load increases. Thus, in the present invention, by setting the gap created by the concave portion and the convex portion provided between the restraining surface of the restraining body and the side surface of the elastic body, the vertical displacement amount increases as the load increases. The superstructure can be supported with such a characteristic that the increase amount becomes small, that is, the degree of restraint is variable. Further, the smaller the gap is, the narrower the range (primary gradient) of the slope of the graph representing the magnitude of the vertical load reaction force with respect to the vertical displacement can be set.

Further, the support device according to the present invention can be realized, for example, by providing a core material in either the first rigid body or the second rigid body. In such a support device, for example, a first rigid body, a second rigid body, an elastic body disposed between the first rigid body and the second rigid body, and an elastic body that is elastically deformed are close to each other. And a restraining body surrounding the elastic body at the abutting position. Either the first rigid body or the second rigid body is provided with a core material, and the core material has a lifting prevention portion and a horizontal displacement prevention portion. A convex portion or a concave portion is formed on either the side surface of the elastic body or the constraining surface of the constraining body. When an input greater than or equal to a predetermined value is made, the elastic body is elastically deformed so as to reduce the volume of the gap created by the convex portion and the concave portion, and the deformed elastic body abuts on the restraint body and / or Or it is comprised so that a deformation | transformation of the said elastic body may be restrained by pressing. For example, the elastic body is surrounded by a first rigid body, a second rigid body, and a restraining body and is in a substantially sealed state. Thereby, a support apparatus changes to a more advanced sealed state with the increase in the load to an elastic body. In such a support device, when a load is input, the elastic body is deformed so as to fill the gap formed by the concave portions between the convex portions according to the magnitude of the input, and the convex portions are restrained by the restraining body. The degree of pressure contact with the surface increases. The restraining body restrains such deformation of the elastic body. For example, the convex or concave portion of the elastic body can be effectively realized by forming it continuously or intermittently in the circumferential direction of the side surface of the elastic body or the constraining surface of the constraining body.

Also, the core material functions as a lifting prevention portion, and it is possible to prevent the first rigid body and the second rigid body from being separated by the lifting force. Further, the core member functions as a horizontal displacement prevention part, and can prevent the first rigid body and the second rigid body from being excessively displaced in the horizontal direction.

Here, the core material can be provided through the first rigid body or the second rigid body. For example, in the support device, the core material is provided on the second rigid body, the elastic body is provided on the second rigid body, the first rigid body side is provided on the restraint body, and the tip of the core material is the first rigid body. It can comprise so that it may engage with the through-hole of this, and it may become a lifting prevention part.

Also, the core material can be non-penetrating the first rigid body or the second rigid body. For example, in the support device, the core material is provided on the second rigid body, the tip portion is provided with a large-diameter portion on which the elastic body is disposed, and the outer peripheral portion of the large-diameter portion is the restraint body on the first rigid body side. It can be configured to engage with the end portion to become a lifting prevention portion.

Here, the elastic body may be constituted by a laminated structure in which an elastic layer having a reinforcing plate inside and a reinforcing plate are laminated, or may be constituted by a single elastic layer without including the reinforcing plate. When the elastic body has a laminated structure, a convex portion or a concave portion is preferably formed at one of the positions of the reinforcing plates or between the reinforcing plates, and the concave portion or the convex portion is formed at the other. When there is a reinforcing plate, the elastic body bulges between the reinforcing plates in a direction substantially perpendicular to the thickness direction of the elastic body when there is a load input. When a convex part is provided at a position between the reinforcing plates, the elastic body can be prevented from being excessively deformed by the elastic convex part of the elastic body being first pressed against the restraining surface of the restraining body. Moreover, according to this, especially the damage by the local distortion of the elastic body surrounding surface corresponded between reinforcement boards can be prevented effectively.

The reinforcing plate may be provided in the elastic body in a disk shape, or may be provided in a ring shape, or may be provided in a concentric circle shape, or a undulating portion that undulates in the thickness direction. You may comprise so that it may provide.

It is preferable that the convex portion is in contact with the restraining surface between the side surface of the elastic body and the restraining surface of the restraining body, but a gap can also be formed. The present invention is configured such that at least when a large load is applied, the convex portion of the elastic body comes into contact with the restraining surface of the restraining body. If the restraint surface of the restraint body and the convex portion of the elastic body are in contact with each other during assembly of the support device, the position of the elastic body within the restraint body can be easily set to a desired position during assembly. I can do it.

The bearing device may be provided with a sliding member between the first rigid body and the first structure and / or between the second rigid body and the second structure.

By the way, in the support device, there is a device in which a gap is formed between rigid bodies such as an upper rod and a lower rod, and in that case, there is a possibility that foreign matters such as moisture and dust may enter from the gap. is there. Therefore, the present invention provides a bearing device having excellent hermeticity that prevents foreign substances such as moisture and dust from entering inside while realizing high load bearing and achieving good rotation followability. For the purpose.

A support device as a second embodiment that realizes such an object includes a first rigid body disposed in one of the first structure and the second structure, and the other of the first structure and the second structure. Any one of the second rigid body disposed on the elastic body, the elastic body disposed between the first rigid body and the second rigid body, the restraining body surrounding the elastic body, and the tip of the restraining body. And an elastic sealing body that is disposed in a gap between the structure and any rigid body, has elasticity and / or flexibility, and seals the gap. The present invention prevents foreign substances such as moisture and dust from entering the inside by the elastic sealing body.

Further, the restraining body has a function of restraining elastic deformation of the elastic body and / or a function of maintaining a substantially sealed state of the elastic body and / or a function of restraining relative displacement between the first rigid body and the second rigid body. It is characterized by. Furthermore, the first rigid body and the second rigid body are provided with a core material having an uplift prevention portion and a horizontal displacement prevention portion, so that when the uplift force is applied to the first rigid body, for example, The first rigid body and the second rigid body can be prevented from separating from each other, and the first rigid body and the second rigid body can be prevented from being excessively displaced in the horizontal direction.

Furthermore, by forming a flange-shaped lifting prevention piece at the tip of the restraint, for example, when lifting force is applied to the first rigid body, the first rigid body and the second rigid body are prevented from separating. In addition, the first rigid body and the second rigid body can be prevented from being relatively displaced in the horizontal direction.

Furthermore, by disposing the elastic sealing body in the gap between the lifting prevention piece and the first rigid body or the second rigid body, foreign matter such as moisture and dust can be prevented from entering the inside of the support device. The sealing property of the support device can be ensured.

Furthermore, by disposing an elastic sealing body in the gap between the lifting prevention piece and the core material, foreign matter such as moisture and dust can be prevented from entering the inside of the support device, and the sealability of the support device can be improved. Can be secured.

Furthermore, if the elastic sealing body is an elastic body capable of supporting a load, the bearing device according to the present invention can support a high load with a small bearing area while realizing a reduction in size as a whole.

Furthermore, a convex portion or a concave portion may be formed on the side surface of the elastic body and / or the constraining surface of the constraining body. Further, if an input is made more than a predetermined value, the elastic body is elastically deformed so as to reduce the volume of the gap created by the convex portion and the concave portion, and the deformed elastic body abuts and / or presses against the restraint body. Thus, the deformation of the elastic body may be constrained. Further, the elastic body is surrounded by the first rigid body, the second rigid body, and the restraint body so as to be in a semi-sealed state, and changes to a more advanced sealed state as the load on the elastic body increases. Anyway.

In the support device according to the present invention, since the elastic sealing body is provided at the tip of the restraint body, it is possible to prevent foreign matters such as moisture and dust from entering inside. Therefore, the bearing device according to the present invention realizes a high-load bearing and achieves a good rotational follow-up property, while preventing foreign matter such as moisture and dust from entering inside and ensuring excellent sealing performance. I can do it. Therefore, the bearing device according to the present invention has excellent waterproof properties and rust preventive properties and can extend the life. Furthermore, in the support device according to the present invention, by using the elastic sealing body as a load-supporting elastic body, the elastic sealing body becomes a support body in the same manner as the elastic body, and the load can be supported by the elastic sealing body. Support can be realized.

Further, in a general bearing device, there is an input exceeding a predetermined value set in advance in the event of a large-scale earthquake, etc., and the strength members such as the upper arm and the lower arm are relatively large and / or the vertical upward direction and / or If the strength member is damaged due to horizontal displacement, it must be replaced immediately. When repeated aftershocks occur, the bearing device with the damaged strength member may not be able to exhibit its original bearing performance.

Also, a general support device is disposed in a narrow space between the upper structure and the lower structure, and it is difficult to check whether it is damaged. In the conventional bearing device, the actual situation is that no consideration is given to the ease of checking whether or not it is damaged.

The present invention has been made in view of such circumstances, and provides a bearing device that can easily confirm whether or not the bearing device or structure has been damaged by an input of a predetermined value or more. For the purpose.

That is, the bearing device according to the present invention as the third embodiment is used as a bearing device for supporting various structures such as buildings and bridges, and includes a first rigid body, a second rigid body, An elastic body disposed between the one rigid body and the second rigid body, and a restraining body surrounding the elastic body. The restraining body is fixed to one of the first rigid body and the second rigid body by a fixing portion from the vertical displacement direction of the elastic body. When the fixed portion is broken, the restraint body falls by gravity in the other direction of the first rigid body or the second rigid body, and approaches and / or contacts. As a result, the gap between the rigid body to which the core material was fixed and the lifting prevention part that had been before the fixing part was broken becomes narrower or disappears due to the drop of the restraining body, and the support is determined depending on the presence and size of this gap. It is possible to determine whether the device is damaged. In this support device, the elastic body continues to support the upper structure with the rigid body to which the restraint is fixed in between even after the restraint is dropped. Therefore, even if the bearing device is damaged, the bearing capacity can be maintained until the damaged bearing device is replaced.

Here, the restraining body has a function of restraining elastic deformation of the elastic body and / or a function of maintaining a substantially sealed state of the elastic body and / or a function of restraining relative displacement between the first rigid body and the second rigid body. . The fixing portion may be parallel to the horizontal displacement direction, but is preferably fixed by a fastening member having an axis substantially parallel to the vertical displacement direction. A core material can be provided on either the first rigid body or the second rigid body. In this case, the core member has a lifting prevention portion that partially overlaps at least one of the constraint body, the first rigid body, and the second rigid body.

In the above-described support device, the binding strength between the restraint body by the fixing portion and one of the rigid bodies is lower than the strength of the core material and the other rigid body, and further lower than the strength of the lifting prevention portion. Thus, before the core material or the lifting prevention portion is damaged, the fixing portion is damaged, and the elastic deformation restraining body is dropped when the fixing portion is damaged. As the fixing portion, a bolt may be used as described below, but it may be fixed using welding or an adhesive, and the coupling means is not particularly limited.

Furthermore, the core member may have a configuration including a horizontal displacement preventing portion that prevents a horizontal displacement of a rigid body to which the restraining body is fixed by the fixing portion.

For example, the fixed part is a bolt, and the restraint body is configured such that when the fixed bolt is damaged by the lifting force, the bolt head passes through the bolt seat part and falls to one of the rigid bodies by gravity. I can do it. In the case of this configuration, when the fixing bolt breaks due to a horizontal force, the restraint body approaches the rigid body side of either the first rigid body or the second rigid body by gravity due to shearing of the bolt shaft portion. Or contact or fall.

Also, when the fixing bolt breaks due to the lifting force, the restraint body is pulled out of the screw hole from the screw hole and falls to any rigid body side due to gravity, and approaches and / or contacts. In this case, when the fixing bolt is damaged by the horizontal force, the bolt shaft portion is horizontally sheared, and the restraint body falls to one of the rigid bodies by gravity.

The rigid body to which the restraining body is fixed by the fixing portion can be provided with a protrusion that fits into the restraining body. Such a support device is extremely strong against horizontal force. Here, the engagement length of the projecting portion with the restraint body can be made larger than the gap between the restraint body and the rigid body to which the core member is fixed. Thereby, even if a restraint body falls in the direction of any rigid body, a protrusion part continues fitting with a restraint body and the semi-sealed state of an elastic body can be maintained. In other words, even if the bearing device is damaged, it is possible to prevent a decrease in bearing capacity.

A lid plate can be disposed between the elastic body and the rigid body to which the restraining body is fixed by the fixing portion. Here, the thickness of the cover plate may be larger than the gap between the restraining body and the other rigid body. According to this, even if the restraint body falls in the direction of any rigid body, the cover plate can continue to be fitted to the restraint body, and the semi-sealed state of the elastic body can be maintained. In other words, even if the bearing device is damaged, it is possible to prevent a decrease in bearing capacity.

Also, a concave portion that is larger in the horizontal displacement direction than the lid plate can be provided on the surface facing the lid plate of the rigid body to which the restraint body is fixed by the fixing portion. Thereby, the amount of horizontal displacement can be limited. Similarly, the amount of horizontal displacement can also be limited by providing a concave portion that is larger in the horizontal displacement direction than the restraining body in the first rigid body to which the restraining body is fixed by the fixing portion. I can do it.

The outer surfaces of the first rigid body, the second rigid body, and the restraint body are given different colors, patterns, pictures, figures, symbols, patterns, etc., and the worker is approaching which rigid body the restraint body is approaching. It is also possible to make it easy to visually determine whether or not they are in contact with each other, thereby enabling the operator to easily transmit to a third party.

In order to make it easier for the restraining body to fall between the elastic body and the inner peripheral surface of the restraining body when the input exceeds a predetermined level, as a slipping means, the lubricant and the outer surface are used as a sliding surface. You may make it provide the substantially cylindrical body by which an elastic body is arrange | positioned. The substantially cylindrical body may be formed by forming a flat plate material, a porous material plate provided with a large number of holes, a concavo-convex plate material having a plurality of minute irregularities, a mesh member, or the like into a substantially cylindrical shape.

Also, a gap can be provided between the restraining body and the elastic body without any input, so that the elastic body can be easily inserted into the restraining body.

A convex part and / or a concave part may be provided on the side surface of the elastic body in the circumferential direction or in the height direction. In the case of such a support device, when a predetermined amount or more is input, the elastic body is elastically deformed, and the side surface of the elastic body that has been elastically deformed is brought into contact with and / or pressed against the restraining body to restrain the deformation of the elastic body. . That is, when a predetermined value or more is input, the elastic body is surrounded by the first rigid body, the second rigid body, and the restraining body to be in a semi-sealed state. Thereby, this space changes to a more advanced sealed state with the increase in the load to an elastic body. As a result, vertical flexible displacement due to vertical load can be realized by the clearance between the convex portion and / or the concave portion of the side surface of the elastic body while realizing a high load bearing with a small bearing area like a sealed rubber bearing. . In addition, when the rotating action is performed, the elastic body is deformed by the gap between the convex part and / or the concave part, and good rotation followability can be realized.

In the present invention, when there is a large input such as a large earthquake and an excessive lifting force is applied, and the fixing portion that couples the restraint body and the first rigid body or the second rigid body is broken, the restraint body is moved downward. It approaches a certain rigid body side, and in an extreme case, it falls and contacts the rigid body. As a result, the gap that existed before the breakage of the fixed part narrowed due to the lowering of the restraint, or disappeared due to the fall, and the support device was damaged by determining the presence or size of this gap. It is possible to determine whether or how much damage has occurred.

Further, in the present invention, even after the restraint body is dropped, it is possible to continue to support the upper structure with the rigid body to which the restraint body is fixed.

Furthermore, in the present invention, different colors, patterns, patterns, drawings, pictures, symbols, etc. are applied to the outer surfaces of the first rigid body, the second rigid body, and further the restraint body. By visually observing the state of the pattern or the like, it is possible to easily determine which rigid body the constraint body is close to or in contact with. This also makes it possible to easily communicate the state of the support device to a third party.

Also, a general support device has an input exceeding a predetermined value set in advance in a large-scale earthquake, etc., and strength members such as upper and lower heels are relatively large in a vertically upward direction and / or a horizontal direction. If the strength member such as the upper and lower eyelids is damaged due to displacement, it must be replaced immediately. When repeated aftershocks occur, the bearing device with the damaged strength member may not be able to exhibit its original bearing performance. Therefore, the present invention has been made in view of such a situation, and an object thereof is to provide a support device capable of easily recovering its function.

The bearing device according to the present invention as the fourth embodiment that realizes such an object is disposed between the first rigid body, the second rigid body, and the first rigid body and the second rigid body. An elastic body and a restraining body surrounding the elastic body are provided. The restraining body is fixed to either the first rigid body or the second rigid body by a fixing bolt having a screw portion substantially parallel to the vertical displacement direction. Either the restraint body or the rigid body to which the restraint body is fixed is formed with a screw hole for fastening the screw portion of the fixing bolt and a spare screw hole, and the other is a screw hole through which the screw portion of the fixing bolt is inserted. A through hole corresponding to is formed.

The restraint body is fixed to the rigid body by the threaded portion of the fixing bolt being inserted into the through hole and tightened into the screw hole. When the fixing bolt breaks, the restraining body is fixed to the rigid body by inserting a screw portion of a new fixing bolt into the through hole and tightening it in the preliminary screw hole.

That is, when the restraint body is fixed to the restraint body and the rigid body to which the restraint body is secured, that is, when the fixing bolt is broken, the restraint body falls by gravity in the direction of the other rigid body and approaches and / or contacts. This narrows or eliminates the gap between the restraint body and the other rigid body that existed before the fixing bolt was broken, and whether or not the bearing device was damaged by determining the presence or size of this gap. Can be discriminated. In a broken bearing device, the screw holes are left with broken fixing bolts and cannot be used. Therefore, at the time of recovery, the dropped restraint is lifted, and at this time, the spare screw hole and the through hole are made to coincide with each other, and the restraint is fixed to one rigid body with a new fixing bolt. Thereby, the support apparatus can restore the function.

Here, when the screw hole and the preliminary screw hole are formed in the restraint body, the through hole is formed in a rigid body to which the restraint body is fixed. At this time, the preliminary screw holes are preferably formed between the screw holes.

In addition, when the screw hole and the preliminary screw hole are formed in a rigid body to which the restraint body is fixed, the through hole is formed in the restraint body. At this time, it is preferable that the restraint body has a flange portion formed at the end of the rigid body to which the restraint body is fixed, and a through hole is formed in the flange portion. Moreover, it is preferable that a flange plate is fixed to the edge part by the side of the rigid body to which a restraint body is fixed, and a through-hole is formed in the flange plate. Also in this case, it is preferable that the preliminary screw holes are formed between the screw holes.

In the support device, a convex portion or a concave portion may be provided on the side surface of the elastic body. In such a support device, when a predetermined value or more is input, the elastic body is elastically deformed, and the side surface of the elastic body that has been elastically deformed abuts and / or presses against the restraining body, thereby restraining the deformation of the elastic body. The elastic body is surrounded by the first rigid body, the second rigid body, and the restraining body to be in a semi-sealed state, and changes to a more advanced sealed state as the load on the elastic body increases.

In the present invention, when the fixing portion of the restraining body and the rigid body, that is, the fixing bolt, is broken, the restraining body falls by gravity in the direction of the other rigid body and approaches and / or contacts. In a broken bearing device, the screw holes are left with broken fixing bolts and cannot be used. Therefore, at the time of recovery, the dropped restraint body is lifted, the preliminary screw hole and the through hole are aligned, and the restraint body is fixed to one rigid body with a new fixing bolt. Thereby, the support apparatus can restore the function easily. That is, in the present invention, unless the restraint body or the rigid body to which the restraint body is coupled is greatly damaged, the restraint body is replaced with a new fixing bolt without changing the parts of the restraint body or the rigid body. It can be repaired by tightening to the spare screw hole. Accordingly, it is possible to improve the work efficiency of restoration and reduce the cost of repair.

By the way, the above-described support device is generally used as a fixed rubber support device. For example, the support device can be slid by providing a sliding member between the upper structure and the upper structure. There is an idea to use as a mold rubber bearing device.

This invention is made in view of such a situation, and it aims at providing the novel support structure which can be easily attached to a structure so that a support apparatus may become a movable type elastic support apparatus. .

The support structure according to the present invention as the fifth embodiment for realizing such an object includes a first rigid body located on the first structure side, and a second rigid body located on the second structure side. A bearing device having an elastic body disposed between the first rigid body and the second rigid body, and between the first structure and the first rigid body and / or the second structure and the second rigid body. A sliding means disposed between the body and sliding the support device relative to the first structure and / or the second structure and allowing relative displacement between the two bodies; Guide means is disposed on the rigid body on the side where the sliding means is disposed, engages with the structure so as to be relatively displaceable, and guides when the support device slides.

Further, the guide means may have an engaging portion formed at the tip. In this case, you may make it an engaging part engage with a structure. Further, the engaging portion may be provided separately from the guide means.

Further, the guide means may be a long member along the bridge axis direction. Further, a plurality of guide means may be arranged on the rigid body.

Further, the guide means may be arranged on the side surface portion of the rigid body. In this case, the guide means may be disposed on the side surface portion of the rigid body via the spacer. Further, the guide means may be engaged with a spacer plate disposed on the structure. Further, the guide means may be arranged on the surface of the rigid body on the structure side.

The spacer plate is disposed on the structure, and is disposed on the first spacer plate, which is narrower than the rigid body on which the guide means is disposed, and is stacked on the first spacer plate, and has substantially the same width as the rigid body. You may make it comprise with a 2nd spacer board. In this case, the guide means may be engaged with the engaged portion of the second spacer plate protruding from the first spacer plate. Further, the spacer plate is disposed on the structure, has a substantially same width as the rigid body on which the guide means is disposed, and has a first spacer plate formed with a notch in the width direction, and the first spacer plate. It may be arranged in a stacked manner and constituted by a rigid body and a second spacer plate having substantially the same width. In this case, the guide means may be engaged with the engaged portion of the second spacer plate exposed from the notch portion of the first spacer plate. Furthermore, a stopper portion that restricts the movement of the support device by abutting the guide means may be formed in the portion of the first spacer plate adjacent to the length direction of the notch portion. Furthermore, the stopper part has a taper part, and it may be made to absorb the displacement of a support apparatus while restrict | limiting the movement of a support apparatus by a taper part.

Further, the guide means may be formed with an engaging ridge or an engaging ridge that forms a stripe extending in the sliding direction. In this case, the engaging ridges or the engaging ridges of the guide means are engaged with the engaging ridges or the engaging ridges forming a stripe extending in the sliding direction on the side surface of the spacer. You may be made to do.

Furthermore, the bearing device can be a so-called fixed bearing device. Further, the support device may include a restraining body that surrounds the elastic body.

Further, as a preferable support device, the restraining body has a function of restraining elastic deformation of the elastic body and / or a function of maintaining a substantially sealed state of the elastic body and / or a relative displacement between the first rigid body and the second rigid body. You may make it have the function to restrain. Furthermore, a core material may be provided in any one of the first rigid body and the second rigid body, and the core material may have a lifting prevention portion and a horizontal displacement prevention portion.

Furthermore, a convex portion and / or a concave portion may be formed on the side surface of the elastic body or the constraining surface of the constraining body. Further, if an input is made more than a predetermined value, the elastic body is elastically deformed so as to reduce the volume of the gap created by the convex portion and the concave portion, and the deformed elastic body abuts and / or presses against the restraint body. The deformation of the elastic body may be constrained.

Further, the elastic body is surrounded by the first rigid body, the second rigid body, and the restraint body so as to be in a semi-sealed state, and changes to a more advanced sealed state as the load on the elastic body increases. Anyway.

In the support structure of the present invention, the sliding means disposed between the structure and the rigid body of the support apparatus slides on the support apparatus, and the guide means provided on the support apparatus engages with the structure. Since the rigid body is slidably supported with respect to the structure and is guided when the rigid body slides with respect to the structure, the support device can be used as a movable elastic support device. Therefore, the bearing structure of the present invention is configured such that when a horizontal force greater than the maximum static frictional force between the sliding surface of the sliding means and the sliding surface with respect to the sliding device is generated with respect to the bearing device, the sliding surface of the sliding means. Can slide the sliding surface and prevent the input of further horizontal force to the bearing device, and absorbs a large relative displacement between the first rigid body and the second rigid body constituting the bearing device. I can do it. Furthermore, the bearing structure according to the present invention is provided with a slidable sliding means capable of relative displacement between the structure to be supported and the rigid body constituting the bearing device, and further the bearing device. Since the guide means that can be retrofitted is provided, the fixed type elastic bearing device can be easily attached to the structure so as to function as a movable type elastic bearing device.

FIG. 1 is a cross-sectional view showing a normal use state of the bearing device according to the first embodiment of the present invention. FIG. 2 is a perspective view of an elastic body to which the present invention is applied. FIG. 3 is a perspective view of an elastic body provided with a protrusion on a side surface to which the present invention is applied. FIG. 4 is a perspective view of an elastic body provided with intermittent convex portions on the side surface to which the present invention is applied. FIG. 5 is a cross-sectional view of the support device before installation (before a load is applied) between the upper structure and the lower structure, and includes a convex portion on the elastic body side surface and a restraint surface of the elastic deformation restraint body. Between is a non-contact state. FIG. 6 is a cross-sectional view of the support device before installation (before a load is applied) between the upper structure and the lower structure, and includes a convex portion on the elastic body side surface and a restraint surface of the elastic deformation restraint body. The state which contact | abutted between is shown. FIG. 7 is a characteristic graph showing the relationship between the amount of vertical displacement and the vertical load. FIG. 8 is a cross-sectional view of a support device using a laminated elastic body in which a recess is provided at the position of the reinforcing plate. FIG. 9 is a cross-sectional view of a support device using a laminated elastic body provided with a convex portion at the position of a reinforcing plate. 10A to 10E are cross-sectional views showing modifications of the reinforcing plate of the laminated elastic body. FIG. 11 is a cross-sectional view of the support device in which the core material penetrates the upper collar. FIG. 12 is a cross-sectional view of the support device in which the convex portion and the concave portion of the elastic body in FIG. 11 are reversed. FIG. 13 is a modification of FIG. 11 and is a cross-sectional view of a support device in which an elastic body is a single layer. FIG. 14 is a modification of FIG. 11 and is a cross-sectional view of a support device in which an elastic deformation restraint is fixed to a lower arm. FIG. 15 is a modification of FIG. 14 and is a cross-sectional view of a support device in which an elastic body is a single layer. FIG. 16 is a cross-sectional view showing a modified example of the support device in which the core material is not penetrating both the upper and lower ridges. FIG. 17 is a modification of FIG. 16 and is a cross-sectional view of a support device in which a core member is attached to the lower arm. FIG. 18 is a cross-sectional view of a support device in which a convex portion or a concave portion is provided on the restraining surface of the elastic deformation restraining body, and shows an example in which the concave portion is provided at the position of the reinforcing plate. FIG. 19 is a cross-sectional view of a support device in which a convex portion or a concave portion is provided on the restraining surface of the elastic deformation restraining body, and shows an example in which the convex portion is provided at the position of the reinforcing plate. FIG. 20 is a cross-sectional view showing a normal use state of the bearing device according to the second embodiment of the present invention. 21A to 21E are cross-sectional views showing modifications of the elastic sealing body. FIG. 22 is a cross-sectional view showing another modification of the elastic sealing body. FIG. 23A is a cross-sectional view of the support device in which the core material penetrates the upper collar, and shows a state in which the elastic sealing body is provided between the elastic deformation restraining body and the lower plate, and FIG. 23B is an elastic deformation of the elastic sealing body. The state provided between the restraint body and the upper plate is shown. FIG. 24 is a cross-sectional view showing a modified example of the support device in which the core member is not penetrating both the upper and lower ridges. FIG. 25 is a cross-sectional view of a support device in which an elastic sealing body is disposed in a disposition recess provided in the lifting prevention piece. FIG. 26 is a cross-sectional view of a support device in which an elastic sealing body is disposed in a tapered portion provided in the lifting prevention piece. FIG. 27 is a cross-sectional view of a support device in which an elastic sealing body is disposed in the gap between the lifting prevention piece and the core member. 28A to 28C are cross-sectional views showing modifications of the elastic sealing body. FIG. 29 is a cross-sectional view of a support device in which a core member is attached to the lower arm. FIG. 30 is a cross-sectional view of a support device in which a convex portion or a concave portion is provided on the restraining surface of the restraining body. FIG. 31 is a cross-sectional view showing a normal use state of the bearing device according to the third embodiment to which the present invention is applied. FIG. 32 is a cross-sectional view showing the state of the support device when a large lifting force that is damaged is applied. FIG. 33 is a cross-sectional view showing the state of the bearing device when a large horizontal force is applied that is damaged. FIG. 34 is a modified example of FIGS. 31, 32, and 33, and is a cross-sectional view of a support device in which the thickness of the bolt seat portion is larger than the screwing depth of the screw hole of the restraint. FIG. 35 is a cross-sectional view showing the state of the bearing device in the case of FIG. 34 in the case where a large lifting force that is damaged is applied. FIG. 36 is a cross-sectional view showing the state of the bearing device in the example of FIG. 34 in the case where a large horizontal force that is damaged is applied. FIG. 37 is a cross-sectional view of a support device in which a protrusion is provided on the lower surface of the upper collar. FIG. 38 is a cross-sectional view showing a state of the support device when a large lifting force that is damaged is applied in the example of FIG. FIG. 39 is a cross-sectional view of a support device in which a cover plate is disposed between the upper collar and the elastic body. FIG. 40 is a cross-sectional view showing a state of the support device when a large lifting force that causes damage is applied in the example of FIG. 39. FIG. 41 is a cross-sectional view showing the state of the bearing device in the example of FIG. FIG. 42 is a cross-sectional view of a support device in which a concave portion larger than the cover plate on the elastic body is provided on the upper collar. FIG. 43 is a modification of FIG. 42, and is a cross-sectional view of a support device in which the thickness of the cover plate is thicker than the depth of the recess. FIG. 44 is a cross-sectional view showing a state of the support device when a large lifting force that is damaged is applied in the example of FIG. 43. FIG. 45 is a cross-sectional view showing the state of the bearing device in the example of FIG. 43 in the case where a large horizontal force that is damaged is applied. FIG. 46 is a cross-sectional view of a support device in which a concave portion larger than the restraining body into which the restraining body is inserted is provided on the upper collar. FIG. 47 is a cross-sectional view showing the state of the bearing device in the example of FIG. 46 in the case where a large lifting force that causes damage is applied. FIG. 48 is a cross-sectional view showing the state of the bearing device in the example of FIG. 46 in the case where a large horizontal force that causes damage is applied. FIG. 49 is a cross-sectional view of the support device in which the upper collar, the lower collar, and the restraint are appropriately colored. FIG. 50 is a cross-sectional view showing the state of the bearing device in the example of FIG. 49 when a large horizontal force is applied that causes damage. FIG. 51 is a cross-sectional view of a support device in which a cylindrical body is provided around an elastic body. FIG. 52 is a cross-sectional view showing a modification of FIG. FIG. 53 is a cross-sectional view of a support device in which a watertight member is disposed in the gap between the lifting prevention piece and the lower rod. FIG. 54 is a cross-sectional view showing the state of the bearing device when a large horizontal force is applied in the example of FIG. FIG. 55 is a cross-sectional view of a support device in which an arrangement recess is provided in the lifting prevention piece and a watertight member is provided here. FIG. 56 is a cross-sectional view of a support device in which a watertight member is disposed between the core material and the tip surface of the lifting prevention piece. FIG. 57 is a cross-sectional view of a support device in which the watertight member is a bellows member. FIG. 58 is a cross-sectional view of the support device provided so that the core material penetrates the upper collar and the elastic body. FIG. 59 is a cross-sectional view showing the state of the bearing device in the case of FIG. 58 when a large lifting force that causes damage is applied. FIG. 60 is a cross-sectional view of a support device without a core member in which a restraint is fixed to the upper arm with a bolt from the horizontal direction. FIG. 61 is a cross-sectional view showing the state of the support device when a large lifting force that is damaged is applied in the example of FIG. FIG. 62 is a modification of the bearing device shown in FIG. 31 and the like, and is a cross-sectional view of the bearing device in which the restraint is fixed to the upper arm with a bolt from the horizontal direction. FIG. 63 is a cross-sectional view showing a state of the support device when a large lifting force that causes damage is applied in the example of FIG. 62. FIG. 64 is a cross-sectional view showing a normal use state of the support device as the fourth embodiment to which the present invention is applied. FIG. 65 is an exploded perspective view of the support device. FIG. 66 is a cross-sectional view showing a state in which a large lifting force or horizontal force that causes the fixing bolt to break is applied and damaged. FIG. 67 is a view showing the relationship between the through hole of the upper collar and the screw hole and the preliminary screw hole of the restraint body. FIG. 67A shows the position when the fixing bolt is tightened in the screw hole, and FIG. Indicates the position when the fixing bolt is tightened in the spare screw hole. FIG. 68 is an exploded perspective view showing a state in which the fixing bolt is fastened to the preliminary screw hole. FIG. 69 is a modified example of the support device, and is a cross-sectional view of a support device in which a flange portion is formed on the restraint body and the restraint body is coupled to the upper collar from the lower side with a fixing bolt. 70 is an exploded perspective view of the support device shown in FIG. 69. FIG. 71 is a cross-sectional view when a large lifting force or horizontal force is applied to the support device shown in FIG. 69 so that the fixing bolt breaks. 72 is a view showing the relationship between the upper and lower screw holes and the through holes of the restraint, and FIG. 72A shows the position when the fixing bolt is tightened in the screw hole. Indicates the position when the fixing bolt is tightened in the spare screw hole. FIG. 73 is a cross-sectional view showing a state where the fixing bolt is fastened to the preliminary screw hole of the upper collar in the support device of FIG. 69. FIG. 74 is a modified example of the support device shown in FIGS. 69 to 73, and is an exploded perspective view of the support device in which the restraint body and the flange plate are separately formed. FIG. 75 is a cross-sectional view of the bearing device shown in FIG. FIG. 76 is a cross-sectional view of the support device in which the restraint body is coupled to the upper collar from the upper side with a fixing bolt, and at the time of repair, the restraint body is coupled to the upper collar from the lower side with the fixing bolt. 77 is a cross-sectional view showing a state in which the bearing device shown in FIG. 76 is damaged due to a large lifting force or horizontal force that causes the fixing bolt to break. FIG. 78 is a cross-sectional view of the support device shown in FIG. 76 in a state where the fixing bolt is fastened to the preliminary screw hole of the upper collar. FIG. 79 is a cross-sectional perspective view showing a support structure as a fifth embodiment to which the present invention is applied. FIG. 80 is a side view showing a support structure to which the present invention is applied. FIG. 81 is a plan view showing a support structure to which the present invention is applied. FIG. 82 is a modification of the guide member shown in FIG. 79, and is a cross-sectional view showing a support structure in which the engaging portion is provided separately from the main body portion. FIG. 83 is a sectional view showing a modification of the support structure shown in FIG. 79 and showing a support structure in which a core member is provided so as to penetrate the upper collar and the elastic body. FIG. 84 is a side view showing a support structure in which a plurality of guide members are provided, which is a modification of the support structure shown in FIG. 79. FIG. 85 is a modification of the support structure shown in FIG. 79, in which the serrated engagement protrusions of the guide member are formed on the side surfaces of the spacer plate fixed to the upper structure. It is sectional drawing which showed the support structure provided so that it might engage with a concave groove part. FIG. 86 is a modification of the support structure shown in FIG. 79, in which the length in the width direction of the upper collar is shorter than the length in the width direction of the upper structure, and the guide member is inserted into the side surface portion of the upper collar via the spacer. It is sectional drawing which showed the support structure fixed to. FIG. 87 is a modified example of the support structure shown in FIG. 79, in which the length in the width direction of the upper collar is shorter than the length in the width direction of the upper structure, and the guide member is a spacer fixed to the upper structure. It is sectional drawing which showed the support structure engaged. FIG. 88 is a plan view showing a support structure in which a notch portion is formed in a spacer fixed to the upper structure, which is a modification of the support structure shown in FIG. FIG. 89 is a plan view showing a support structure in which the stopper portion has a taper portion, which is a modification of the support structure shown in FIG. 87. FIG. 90 is a modification of the support structure shown in FIG. 87, in which the serrated engagement protrusions of the guide member are formed on the side surface of the spacer plate fixed to the upper structure. It is sectional drawing which showed the support structure provided so that it might engage with a concave groove part. FIG. 91 is a modification of the support structure shown in FIG. 79, in which the length in the width direction of the upper collar is longer than the length in the width direction of the upper structure, and the guide structure is fixed to the upper surface of the upper collar. It is sectional drawing which showed. 92 is a cross-sectional view showing a support structure in which a mounting portion is formed on a guide member fixed to the upper surface of the upper collar, which is a modification of the support structure shown in FIG. FIG. 93 is a modified example of the support structure shown in FIG. 79, in which the length in the width direction of the upper collar is longer than the length in the width direction of the upper structure, and the guide member is a spacer fixed to the upper structure. It is sectional drawing which showed the support structure engaged. FIG. 94 is a modification of the support structure shown in FIG. 93, in which the serrated engagement protrusions of the guide member are formed on the side surfaces of the spacer plate fixed to the upper structure. It is sectional drawing which showed the support structure provided so that it might engage with a concave groove part.

(First embodiment)
Hereinafter, a support device according to a first embodiment of the present invention will be described with reference to the drawings. Hereinafter, the support device will be described in the following order.

1. 1. Explanation of bearing device 2. Description of elastic body and elastic deformation restraint body 3. Explanation of operation of bearing device 4. Explanation of laminated elastic body 5. Description of modification of reinforcing plate Modification 1 of bearing device
7). Modification 2 of bearing device
8). Modification 3 of bearing device
9. Modification 4 of bearing device
10. Other variations

[1. Description of bearing device]
As shown in FIG. 1, a bearing device 10 is mounted between an upper structure 1 such as a bridge girder and a lower structure 2 such as a bridge pier or an abutment to support various loads such as a horizontal load, a vertical load, and a rotational load. At the same time, it is a bridge support device that supports and absorbs and disperses vibrations, vibrations and stresses caused by earthquakes, winds, dynamic or static traffic loads, and the like. In the support device 10, an elastic body 13 serving as a support body is interposed between an upper collar 11 serving as a first rigid body and a lower collar 12 serving as a second rigid body. The elastic body 13 is surrounded by an elastic deformation restraining body 16 that is a restraining body fixed to the upper collar 11 or the lower collar 12 (here, the upper collar 11).

The upper arm 11 is preferably made of a rigid material such as metal, ceramics, or a hard resin or a reinforced resin such as FRP, but is not necessarily limited to a rigid material. It can also comprise by the material comprised by a combination. The upper collar 11 made of various materials can be set to an appropriate shape such as a substantially polygonal shape, a substantially circular shape, a substantially oval diameter, or a substantially elliptical shape in plan view. It is advantageous in terms of replacement from the top or construction. Note that the upper collar 11 may be configured so that the outer surface is entirely covered with a coating layer such as an elastic body to obtain weather resistance and a rust prevention effect.

As a means for fixing the upper collar 11 to the upper structure 1, the upper collar 11 may be directly secured to the upper structure using fastening means such as bolts and nuts. The upper plate 11 is indirectly fixed to the upper structure 1 using the upper plate 3 having a plate shape with a larger area. The method for fixing the upper collar 11 to the upper structure 1 is not limited to these examples.

When used as a movable bearing device, a sliding member 4 is disposed above the upper collar 11, for example, between the upper collar 11 and the upper plate 3, so that the upper structure 1 and the bearing apparatus 10 are relative to each other. You may fix so that displacement is possible. As the sliding member 4, for example, a plate having a surface with a low coefficient of friction such as polytetrafluoroethylene (PTFE) which is a kind of fluorocarbon resin is fixed to the upper surface of the upper collar 11, or It can be configured by being fixed to the upper structure 1 or the lower surface on the attachment means side fixed to the upper structure 1.

The lower arm 12 is preferably composed of a rigid material such as metal, ceramics, or a reinforced resin such as a hard resin or FRP, but is not necessarily limited to a rigid material. It can be constituted by a material constituted by a combination of a rigid material and an elastic material. The lower bar 12 made of various materials can be set to an appropriate shape such as a substantially polygonal shape, a substantially circular shape, a substantially oval diameter, or a substantially oval shape in plan view. It is advantageous in terms of top, construction, and replacement. The planar shape or the like of the lower eyelid 12 does not necessarily match the upper eyelid 11, but the size of each part, the shape and position of the convex portion and the recessed portion, etc. match the setting of the lower eyelid 12 and the setting of the upper eyelid 11. It is necessary to let In addition, the lower collar 12 can also be comprised so that a weather resistance and a rust prevention effect may be acquired by covering the outer surface entirely with a coating layer such as an elastic body.

As a fixing means of the lower rod 12 with respect to the lower structure, for example, the lower rod 12 may be directly fixed to the lower structure 2 by using fastening means such as bolts and nuts. The lower rod 12 is indirectly fixed to the lower structure 2 using lower fixing means such as the lower plate 5 having a plate shape with a larger area. The method for fixing the lower rod 12 to the lower structure 2 is not limited to these examples.

When used as a movable bearing device, a sliding member 6 is disposed below the lower rod 12, for example, between the lower plate 5 and the lower rod 12, so that the lower structure 2 and the bearing device 10 are relative to each other. You may fix so that displacement is possible. As the sliding member 6, for example, a plate having a low coefficient of friction surface such as PTFE is fixed to the lower surface of the lower rod 12, or the lower structure 2 or the lower structure 2 is fixed. It is possible to fix to the upper surface on the means side.

The direct or indirect fixing of the upper rod 11 or the lower rod 12 is preferably a detachable method, and fastening with bolts, nuts, etc. is an example.

[2. Explanation of elastic body and elastic deformation restraint body]
As the elastic body 13, natural rubber, synthetic rubber, thermoplastic elastomer or thermosetting elastomer can be used, and among these, natural rubber is preferably used as a main component. Specific elastomer components include, for example, natural rubber (NR), polyisoprene rubber (IR), polybutadiene rubber (BR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), ethylene-propylene rubber, butyl rubber ( IIR), halogenated butyl rubber (brominated, chlorinated, etc.), acrylic rubber, polyurethane, silicone rubber, fluorinated rubber, polysulfide rubber, hyperon, ethylene vinyl acetate rubber, epichlorohydrin rubber, ethylene-methyl acrylate copolymer, styrene series Elastomer, Urethane Elastomer, Polyolefin Elastomer, Acrylonitrile-Butadiene Rubber (NBR), Styrene / Isoprene / Styrene Block Copolymer (SIS), Epoxidized Natural Rubber, trans-Polyisoprene, Norbornene Ring polymer (polynorbornene), styrene-butadiene rubber (SBR), high styrene resin, a rubber such as isoprene rubber alone, or may be used in combination of two or more.

The elastic body 13a shown in FIG. 2 has, for example, a cylindrical shape and one (single layer) elastic layer that is not provided with a rigid reinforcing plate such as an iron plate. The elastic body 13a is provided with a convex portion 14 and a concave portion 15 on the side surface. In the example shown in FIG. 2, convex portions 14 that are continuous in the circumferential direction are provided in the central portion in the thickness direction so as to form a wave shape in the thickness direction, and in the circumferential direction on the upper side and the lower side of the convex portion 14. The continuous recessed parts 15 and 15 are provided, and the convex parts 14 and 14 continued in the circumferential direction are further provided at the upper and lower ends in the thickness direction.

Further, the elastic body 13b shown in FIG. 3 also has a cylindrical shape and has a single elastic layer (single layer) in which no reinforcing plate is provided. The elastic body 13b is provided with irregular projections 14 having irregularities on the side surface, and concave portions 15 in areas where the projections 14 are not provided. Note that the protruding convex portions 14 may be provided regularly, and may have various sizes and protruding directions. Moreover, in the elastic body 13c shown in FIG. 4, the elongate convex part 14 is provided in the circumferential direction of the side surface intermittently at equal intervals. The convex portions 14 may be provided at various intervals in the circumferential direction. Further, the interval in the thickness direction may be equal or not equal. Hereinafter, an elastic body having a single elastic layer is also simply referred to as an elastic body 13.

In the example shown in FIG. 1, the elastic body 13 as described above is disposed on the lower rod 12 and supported by the lower rod 12. The elastic body 13 may be bonded to the upper collar 11 and the lower collar 12 to increase the bearing pressure. However, by not bonding, the elastic follower 13 can also achieve good rotation followability.

The elastic body 13 is surrounded by an elastic deformation restraining body 16 as shown in FIG. The elastic deformation restraining body 16 is a cylindrical body having an inner diameter slightly larger than the outer diameter of the elastic body 13, and is fixed to either the upper collar 11 or the lower collar 12, or the outer periphery of the upper collar 11 in FIG. 1. For example, the upper rod 11 and the elastic deformation restraining body 16 may be coupled by using a fixing means 16b such as a bolt and a nut. As the fixing means 16b, either one of the upper collar 11 and the elastic deformation restraining body 16 is provided with a male screw, the other is provided with a female screw, and these are screwed together and joined together. Further, it can be performed by a conventionally known bonding method or the like. The tip of the elastic deformation restraining body 16 on the lower collar 12 side is located outside the outer periphery of the lower collar 12 and is not fixed. As a result, the upper rod 11 can move vertically downward while compressing the elastic body 13 when a vertical load is input. That is, the elastic body 13 disposed between the upper eyelid 11 and the lower eyelid 12 is shear-deformed by the tip of the elastic deformation restraining body 16 on the lower eyelid 12 side being located outside the outer peripheral portion of the lower eyelid 12. And a role of a piston that restrains the elastic body 13 in a substantially hermetically sealed state to increase the bearing pressure. Thus, the elastic body 13 supported by the lower collar 12 is disposed in a substantially sealed space with the upper surface surrounded by the upper collar 11 and the side surface by the elastic deformation restraining body 16. The bearing device 10 is a substantially sealed rubber bearing, and can support a high load with a small bearing area.

Here, the relationship between the sizes of the elastic body 13 and the elastic deformation restraining body 16 will be described. In the example of FIG. 1, the support device 10 is installed between the upper structure 1 and the lower structure 2, and the support device. 10, in a state where the elastic body 13 is deformed by the load of the upper structure 1, the convex portion 14 on the side surface of the elastic body 13 is in contact with the restraining surface 16 a on the inner peripheral surface of the elastic deformation restraining body 16 It has become. That is, as shown in FIG. 5, the convex portion 14 on the side surface of the elastic body 13 is constrained on the inner peripheral surface of the elastic deformation restraining body 16 before being installed between the upper structure 1 and the lower structure 2. When it is installed between the upper structure 1 and the lower structure 2, it is elastic due to the dead load of the upper structure 1. The convex portion 14 on the side surface of the body 13 is in contact with the restraining surface 16 a on the inner peripheral surface of the elastic deformation restraining body 16. In the case of a load in the normal use range, the convex portion 14 on the side surface of the elastic body 13 is not in contact with the restraint surface 16a on the inner peripheral surface of the elastic deformation restraint body 16, and a high load that exceeds the normal use range. The convex portion 14 on the side surface of the elastic body 13 comes into contact with the constraining surface 16a on the inner peripheral surface of the elastic deformation restraining body 16, and the convex portion 14 and The bulged and deformed portion of the recess 15 may be pressed.

Furthermore, as shown in FIG. 6, the convex portion 14 on the side surface of the elastic body 13 is constrained on the inner peripheral surface of the elastic deformation restraining body 16 before being installed between the upper structure 1 and the lower structure 2. The state which contact | abutted to 16a may be sufficient. In this case, when the elastic body 13 is disposed in the elastic deformation restraining body 16, the elastic body 13 in the elastic deformation restraining body 16 can be accurately positioned. It should be noted that a minute gap having a tolerance may exist between the restraining surface 16 a of the elastic deformation restraining body 16 and the elastic body 13.

As described above, when the elastic body 13 used in the present invention is provided with the convex portion 14 on the side surface of the elastic body 13 and the concave portion 15 other than the convex portion 14, when a vertical load is applied to the elastic body 13, Further, the elastic body 13 is displaced vertically downward, and the deformation amount of the elastic body 13 is limited by the elastic deformation restraining body 16. Therefore, as long as such an action can be realized, the positions and sizes of the convex portions 14 and the concave portions 15 provided on the side surfaces of the elastic body 13 are not limited to the above examples.

[3. Explanation of operation of bearing device]
In the support device 10 as described above, when installed between the upper structure 1 and the lower structure 2, as shown in FIG. 1, the elastic body 13 has a load in a normal use range (for example, a dead load or (Dead load + live load during vehicle travel) is compressed, and the convex portion 14 of the elastic body 13 is positioned close to or in contact with the restraining surface 16a of the elastic deformation restraining body 16 surrounding the elastic body 13. In the support device 10, the elastic body 13 is elastically deformed in accordance with the magnitude of the vertical load, and the elastic deformation is restrained while the side surface convex portion 14 is deformed so as to fill the gap formed by the concave portion 15. The body 16 is pressed against the restraining surface 16a. That is, the amount of displacement of the elastic body 13 is limited by the elastic deformation restraining body 16.

In such a support device 10, the elastic body 13 supported by the lower rod 12 is surrounded by the upper rod 11 and the elastic deformation restraining body 16, and the convex portion 14 and the concave portion 15 are provided on the side surface of the elastic body 13, A substantially sealed space having a predetermined gap is provided between the constraining surface 16a. As a result, at the initial stage of load input or at the time of low load input, the vertical displacement is gradually increased and the elastic modulus is increased as the input load increases while the vertical flexible displacement with respect to the vertical load is possible. Thus, when a large load is input, it behaves like a sealed rubber bearing, realizing a high load support with a small bearing area. In addition, when a rotational force is applied in the vertical plane over a low load to a high load input, the elastic body 13 is partially supported by the elastic deformation restraining body 16, but the elastic body is caused by the gap between the convex portion 14 or the concave portion 15. 13 is deformed, and excellent rotation followability can be realized without an extreme load on the elastic body.

Here, FIG. 7 shows the relationship between the amount of displacement in the vertical direction and the vertical load.
Line A ... General laminated rubber bearings The rubber bearings here are elastic rubber laminated rubber bearings, and a horizontal force distribution type rubber bearing or seismic isolation bearing with multiple steel plates inside. This is not a sealed rubber bearing, but a bearing in which displacement when a load is applied is not constrained.
Line B: The outer shape of the elastic body 13 is made smaller than the inner diameter of the elastic deformation restraining body 16 (the inner diameter of the pot portion), and the convex portions 14 and the concave portions 15 are formed larger. The characteristics when the gap between the sides is increased are shown. (Large gap)
Line C: Characteristic when the gap between the restraining surface 16a and the side surface of the elastic body 13 is made smaller than that of the line B. (In the gap)
Line D: shows characteristics when the gap between the restraining surface 16a and the side surface of the elastic body 13 is minimized. (Small gap)
Line E: A sealed rubber bearing that does not provide a gap between the restraining surface 16a and the side surface of the elastic body 13. Although it has a rotation follow-up performance, it has almost no elastic displacement in the vertical direction and is handled as a metal bearing.

In the rubber bearing shown by the line A in FIG. 7, as the vertical load increases, the vertical displacement amount increases substantially proportionally, and the inclination of the graph (constraint degree or spring constant) is substantially constant. According to the example of the line BD in which the convex portion 14 and the concave portion 15 are provided on the side surface of the elastic body 13, the amount of vertical displacement increases as the vertical load increases, but the characteristic becomes nonlinear. That is, the inclination (constraint degree or spring constant) of the graph representing the magnitude of the vertical load reaction force with respect to the vertical displacement increases as the vertical displacement increases. Thus, when the convex part 14 and the recessed part 15 are provided in the side surface of the elastic body 13, it will change to a more advanced sealed state and the increase amount of a vertical displacement amount will become small, so that a big load is input. The upper structure 1 can be supported by characteristics, that is, the degree of restraint is variable. In other words, the bearing device 10 can support a high load while having appropriate vertical flexibility. Further, in the example of the line BD, as the gap is smaller, the gentle range (primary gradient) of the graph representing the magnitude of the vertical load reaction force with respect to the vertical displacement can be set narrower. That is, the vertical displacement is reduced. Furthermore, in the sealed rubber bearing of line E, there is almost no elastic displacement in the vertical direction.

In particular, according to the example of the line BD in which the convex portion 14 and the concave portion 15 are provided on the side surface of the elastic body 13, when a high load is applied, the vertical flexible displacement becomes small and behaves like a sealed rubber bearing. Therefore, in the example of the line BD, the use range of the line BD is set according to the type and application of the superstructure 2 to be supported. For example, by adding a state where a live load is added to a dead load to be included in the steep slope (secondary slope) region of the graph, the vertical deflection width due to the size of the live load can be reduced. This makes it possible to reduce vibration and noise when passing through the vehicle. In the low load range (primary gradient), there is vertical deflection, so the bearing device of line BD can be treated as belonging to the elastic bearing device.
Moderate

[4. Explanation of laminated elastic body]
In the above example, the supporting device 10 using the elastic body 13 having a single elastic layer has been described. As the elastic body 13, a laminated structure in which an elastic layer and a reinforcing plate are laminated as shown in FIG. The elastic body 17 may be used. The elastic body 17 includes a reinforcing plate 17a, a plurality of elastic layers 17b, and the reinforcing plate 17a and the elastic layer 17b are bonded to each other by vulcanization bonding. When a load is applied to the single-layer elastic body 13, the free side surface is pushed out to the side, and in particular, bulges around the central portion in the thickness direction. In the laminated elastic body 17, since the reinforcing plate 17 a is provided, swelling of the free side surface of the elastic body 17 is suppressed, and the load bearing capacity is increased. However, since the side surface of the elastic layer 17b between the reinforcing plates 17a is also a free side surface, it slightly bulges to the side according to the load. However, in the support device 10, since the elastic deformation restraining body 16 restrains the deformation of the elastic body 17, the bulge amount is small.

That is, as shown in FIG. 8, in the laminated elastic body 17, on the side surface, the convex portion 18 is provided at the position of the elastic layer 17b on the free side surface, and the concave portion 19 is provided at the position of the reinforcing plate 17a. In this case, when the load is applied, the convex portion 18 comes into strong pressure contact with the restraining surface 16a of the elastic deformation restraining body 16 before the concave portion 19 due to the free side surface of the elastic layer 17b bulging. Of course, in the present invention, as shown in FIG. 9, the position of the reinforcing plate 17 a may be the convex portion 18 and the position of the elastic layer 17 b may be the concave portion 19. In this case, since the free side surface of the elastic layer 17b which is the concave portion 19 slightly bulges, the convex portion 18 and the concave portion 19 are similarly brought into contact with the constraining surface 16a of the elastic deformation constraining body 16 and are even. It can be made to press. The laminated elastic body 17 is an elastic portion at a position between the reinforcing plates that has the largest amount of bulging in the past, and this convex portion is provided by a constraining surface 16a of the elastic deformation restraining body 16 after providing a convex portion 18 at this portion. Since the bulging amount around 18 is restricted, local stress on the elastic layer 17b around the internal reinforcing plate 17a is relieved even when a high load is input. In addition, the internal reinforcing plate 17a is not easily crushed by a high load, and the reinforcing plate 17a can be thinned, so that the entire thickness of the support device 10 can be reduced.

The size relationship between the laminated elastic body 17 and the elastic deformation restraining body 16 is the same as in the case of the elastic body 13, and as described with reference to FIGS. The side protrusions 18 may be in a non-contact state with the inner peripheral restraint surface 16a of the elastic deformation restraint body 16, but may be in a contact state. In this case, the elastic body 17 is assembled during assembly. This is preferable because the convex portion 18 on the side surface comes into contact with the restraining surface 16a on the inner peripheral surface of the elastic deformation restraining body 16 and positioning is improved. However, the presence / absence of contact between the elastic body and the elastic deformation restraint body when there is no input is not particularly limited. For example, when a large load is input, the convex portion 18 on the side surface of the elastic body 17 You may make it contact with the restraint surface 16a of the internal peripheral surface of the elastic deformation restraint body 16. FIG.

In the examples of FIGS. 8 and 9, the upper collar 11 and the elastic deformation restraining body 16 are integrally formed. In the laminated elastic body 17, the vertical load support performance, horizontal load support performance, and vertical rotation performance are adjusted by the area and thickness of the elastic layer, the number, the area and thickness of the reinforcing plate, the number, and the like. I can do it. Also. The elastic deformation restraining body 16 is fixed to the outer peripheral side of the lower surface of the upper collar 11. For example, the upper rod 11 and the elastic deformation restraining body 16 may be coupled by using a fixing means 16b such as a bolt and a nut. Further, as the fixing means 16b, either one of the upper collar 11 and the elastic deformation restraining body 16 is provided with a male screw and the other is provided with a female screw, and these are screwed together and welded together. Further, it can be performed by a conventionally known bonding method or the like.

[5. Description of modification of reinforcing plate]
Specifically, the reinforcing plate 17a used for the laminated elastic body 17 can be configured as shown in FIG. In the example shown in FIG. 10A, a protrusion 21a is provided at the center of the surface of the upper collar 11 on which the elastic body 17 is disposed, and an annular recess 21b is provided around the protrusion 21a. Moreover, the protrusion part 22a is provided in the center part of the surface by which the elastic body 17 of the lower collar 12 is arrange | positioned, and the recessed part 22b is provided in the circumference | surroundings of the protrusion part 22a. Accordingly, the elastic body 17 disposed between the upper collar 11 and the lower collar 12 has a thin central portion and a thick annular portion around the periphery. Inside the elastic body 17, an annular reinforcing plate 17 a is provided in an outer peripheral region that becomes a thick portion. In the elastic body 17, a concave portion 19 is provided at a position of the reinforcing plate 17 a on the side surface, and a convex portion 18 is provided continuously or intermittently at the position of the elastic layer 17 b. Of course, the convex portion 18 may be provided at the position of the reinforcing plate 17a, and the concave portion 19 may be provided at the position of the elastic layer 17b. Moreover, you may make it provide the space | gap part 23a in the center part of the elastic body 17 for a restraint degree adjustment. Since such an elastic body 17 has a thin portion at the center and an annular thick portion around the center portion, it is possible to improve the rotation followability.

FIG. 10B is a modification of FIG. 10A, in which the surface on the side where the elastic body 17 of the lower eyelid 12 is disposed is formed flat, and the protruding portion 21a and the recessed portion 21b are provided only on the upper eyelid 11 side. Yes. In this elastic body 17, since the surface of the lower eyelid 12 on which the elastic body 17 is disposed is formed flat, the shape of the lower eyelid 12 and the elastic body 17 can be simplified, and the processing cost can be reduced. It can be reduced. Also in this example, the gap portion 23 a may be provided in the central portion of the elastic body 17. Further, on the side surface of the elastic body 17, a concave portion 19 is provided at the position of the reinforcing plate 17a, and a convex portion 18 is provided continuously or intermittently at the position of the elastic layer 17b. Of course, the convex portion 18 may be provided at the position of the reinforcing plate 17a, and the concave portion 19 may be provided at the position of the elastic layer 17b.

In FIG. 10C, a plurality of annular reinforcing plates 17a are provided concentrically with the elastic body 17 in a concentric manner. In this example, the opposing surfaces of the upper collar 11 and the lower collar 12, that is, the surface on which the elastic body 17 is disposed are formed flat. In this example, since the protrusions 21a and 22a and the recesses 21b and 22b (see FIGS. 10A and 10B) are not provided on the surface on which the elastic body 17 of the upper and lower collars 11 and 12 is disposed, the configuration is simplified. As a result, the processing cost can be reduced. The number of the annular reinforcing plates 17a may be one on the inner peripheral side or one on the outer peripheral side, and the number is not particularly limited. Further, in FIG. 10C, a plurality of annular reinforcing plates 17a are provided concentrically at the same height, but the heights at which the reinforcing plates 17a are provided are not necessarily the same. In this example as well, a gap 23a may be provided in the center of the elastic body 17. Further, on the side surface of the elastic body 17, a convex portion 18 is provided at the position of the reinforcing plate 17a, and a concave portion 19 is provided continuously or intermittently at the position of the elastic layer 17b. Of course, the concave portion 19 may be provided at the position of the reinforcing plate 17a, and the convex portion 18 may be provided at the position of the elastic layer 17b.

In FIG. 10D, a plurality of reinforcing plates 17a are spaced apart from each other and provided in parallel. In this example, the number of reinforcing plates 17a may be one or more. In this example, a convex portion 18 is provided on the side surface at the position of the reinforcing plate 17a, and a concave portion 19 is provided continuously or intermittently at the position of the elastic layer 17b. Of course, the concave portion 19 may be provided at the position of the reinforcing plate 17a, and the convex portion 18 may be provided at the position of the elastic layer 17b.

In FIG. 10E, a plurality of annular protrusions 17c are concentrically provided on the front and back of the reinforcing plate 17a. In this example, the number of reinforcing plates 17a may be one or more. Further, the number of the annular protrusions 17c is not particularly limited, and may be one, for example. Moreover, the cyclic | annular protrusion part 17c may be an intermittent thing instead of a continuous protrusion part. In this example, the convex part 18 is provided in the position of the reinforcement board 17a of the side surface of the elastic body 17, and the recessed part 19 is provided in the position of the elastic layer 17b continuously or intermittently. Of course, the concave portion 19 may be provided at the position of the reinforcing plate 17a, and the convex portion 18 may be provided at the position of the elastic layer 17b. Further, the annular protrusion 17c may be provided on only one of the front and back surfaces, and a plurality of reinforcing plates 17a may be provided.

[6. Modification 1 of bearing device]
A support device 30 shown in FIG. 11 is provided with a core 31 attached to the lower rod 12 and provided with a lifting prevention portion and a horizontal displacement prevention portion. The bearing device 30 includes an elastic body 17 having a laminated structure in which an elastic layer and a reinforcing plate are laminated between an upper collar 11 as a first rigid body and a lower collar 12 as a second rigid body. ing. The upper collar 11 of the support device 30 has a through hole 32 penetrating through the front and back surfaces. The core material 31 is inserted into the through-hole 32 from the upper surface side of the upper collar 11, and the amount of displacement of the upper collar 11 vertically downward is considered without the tip portion of the core material 31 protruding from the upper surface of the upper collar 11. Thus, the tip portion is accommodated so as to be lowered one step further. A lifting prevention piece 32 a is formed in a flange shape at the opening end of the through hole 32.

The core member 31 inserted into the through hole 32 is made of a metallic bolt-shaped member having a head that becomes the large diameter portion 33, and the large diameter portion 33, which is the tip portion, is inside the through hole 32 of the upper collar 11. It is set to a size that can be accommodated. The core material 31 is inserted into the insertion hole 34 formed in the substantially central portion of the elastic body 17 from the through hole 32 of the upper collar 11, and further, the screw formed on the support surface side of the elastic body 17 of the lower collar 12. It is fixed by being screwed into the hole 35. When the core material 31 is inserted from the through hole 32 and fixed to the screw hole 35, the large diameter portion 33 is accommodated in the through hole 32 so as to be lowered by one step. The core material 31 is fixed to the lower rod 12 so that when the upper rod 11 and the lower rod 12 are about to be displaced relatively in the horizontal direction, the core material 31 becomes the tip surface or the through hole of the lifting prevention piece 32a. The displacement of the upper collar 11 is regulated by the core 31 fixed to the lower collar 12 while hitting the side surface of the lower collar 32. That is, the core material 31 functions as a horizontal displacement prevention unit, and prevents the upper collar 11 and the lower collar 12 from being excessively displaced in the horizontal direction. Further, the large-diameter portion 33 of the core member 31 is larger than the opening diameter of the lifting prevention piece 32a of the through hole 32 and engages with the lifting prevention piece 32a. The core material 31 has a large-diameter portion of the core material 31 fixed to the lower collar 12 when an upper lifting force is applied to the upper collar 11, that is, a force that the upper collar 11 attempts to lift relative to the lower collar 12. When the lifting prevention piece 32 a is locked to the 33, it is possible to prevent the upper collar 11 and the lower collar 12 from separating. That is, the large diameter part 33 functions also as a lifting prevention part.

The elastic body 17 is surrounded by an elastic deformation restraining body 16 as shown in FIG. The elastic deformation restraining body 16 is a cylindrical body having an inner diameter slightly larger than the average outer diameter of the elastic body 13, and is fixed to the outer peripheral portion of the upper collar 11. For example, the upper rod 11 and the elastic deformation restraining body 16 may be coupled by using a fixing means 16b such as a bolt and a nut. As the fixing means 16b, either one of the upper collar 11 and the elastic deformation restraining body 16 is provided with a male screw, the other is provided with a female screw, and these are screwed together and joined together. It can be performed by a conventionally known bonding method or the like.

The tip of the elastic deformation restraining body 16 on the lower collar 12 side is located outside the outer periphery of the lower collar 12 and is not fixed. As a result, when the vertical load is input, the upper collar 11 can be displaced vertically downward while compressing the elastic body 13. That is, the tip of the elastic deformation restraining body 16 on the lower collar 12 side is positioned outside the outer periphery of the lower collar 12, so that it is arranged between the upper collar 11 and the lower collar 12 in cooperation with the core material 31. It functions to suppress the shear deformation of the elastic body 17 provided and to play a role of a cylinder that restrains the elastic body 17 in a substantially sealed state to increase the bearing pressure. Thus, the elastic body 17 supported by the lower collar 12 is disposed in a substantially sealed space with the upper surface surrounded by the upper collar 11 and the side surface by the elastic deformation restraining body 16. That is, the bearing device 10 is a substantially hermetic rubber bearing, and can support a high load with a small bearing area.

Even in such a support device 30, as with the above-described support device 10, the elastic body 17 supported by the lower collar 12 is surrounded by the upper collar 11 and the elastic deformation restraining body 16 to be substantially sealed. Forming a space portion and providing a high load bearing with a small bearing area like a substantially sealed rubber bearing, while providing a convex portion 18 and a concave portion 19 on the side surface of the elastic body 17, By providing a gap between them, it is possible to realize a vertical flexible displacement with respect to a vertical load. In addition, when the rotating action is performed, the elastic body 17 is deformed by a gap formed by the convex portion 18 or the concave portion 19, and good rotation followability can be realized. And as shown in the said FIG. 7, by providing a clearance gap by the recessed part 19 and the convex part 18 between the constraining surface 16a and the side surface of the elastic body 17, the more highly sealed it is, so that a big load is input. By changing to the state, the amount of increase in the vertical displacement can be reduced.

In this bearing device 30, the positional relationship between the reinforcing plate 17a of the elastic body 17 serving as a bearing body and the concavo- convex portions 18 and 19 is opposite to the example of FIG. 11, as shown in FIG. Alternatively, the protrusion 18 may be provided at the position and the elastic layer 17 b may be provided at the position of the recess 19. The elastic body 17 may be a single-layer elastic body 13 as shown in FIG. Alternatively, the upper eyelid 11 may be used as the lower eyelid, and the lower eyelid 12 may be used as the upper eyelid. Furthermore, when installing in the upper structure 1 and the lower structure 2, as described above, the upper plate 3 and the lower plate 5 may be interposed and fixed, and the sliding members 4 and 6 are further interposed. It is possible to fix them (see FIG. 1). Further, as shown in FIG. 14, the support device 30 may fix the elastic deformation restricting body 16 to the outer peripheral portion of the lower rod 12 instead of the upper rod 11 by the fixing means 16 b. In this case, the distal end portion of the elastic deformation restraining body 16 is located outside the outer peripheral portion of the upper collar 11 and is not fixed. As a result, when the vertical load is input, the upper collar 11 can be displaced vertically downward while compressing the elastic body 13. Further, in the support device 30 in which the elastic deformation restraining body 16 is fixed to the outer peripheral portion of the lower collar 12 by the fixing means 16b, a single-layer elastic body 13 may be used as the elastic body as shown in FIG. .

[7. Modification 2 of bearing device]
In the support device 40 shown in FIG. 16, the core member 41 does not penetrate the upper collar 11 and the lower collar 12. In this support device 40, a core material 41 is attached to the lower rod 12, and a lifting prevention portion and a horizontal displacement prevention portion are provided. In addition, the bearing device 40 includes an elastic body 17 having a laminated structure in which an elastic layer and a reinforcing plate are laminated between an upper collar 11 as a first rigid body and a lower collar 12 as a second rigid body. ing.

The upper arm 11 is disposed on the upper surface of the elastic body 17, and the elastic deformation restraining body 16 is fixed to the outer periphery. For example, the upper collar 11 and the elastic deformation restraining body 16 may be coupled using a fixing means 16b such as a bolt and a nut. Further, as the fixing means 16b, either one of the upper collar 11 and the elastic deformation restraining body 16 is provided with a male screw and the other is provided with a female screw, and these are screwed together and welded together. It can be performed by a conventionally known bonding method or the like. The tip of the elastic deformation restraining body 16 on the lower collar 12 side is formed with a flange-shaped lifting prevention piece 42 projecting inward.

The core member 41 is made of a metal bolt-shaped member having a head portion that becomes the large-diameter portion 43, and the tip portion is screwed into a screw hole 44 formed on the support surface side of the elastic body 17 of the lower collar 12. Fixed by. The core member 41 has a large diameter portion 43 at the upper end portion, and serves as a support surface that supports the elastic body 17. Further, the large diameter portion 43 engages with the rising prevention piece 42 of the elastic deformation restraining body 16 fixed to the outer peripheral portion of the upper collar 11. The large-diameter portion 43 of the core member 41 fixed to the lower rod 12 serves as an anti-lifting portion, and when an upper lifting force is applied to the upper rod 11, the upper anti-raising piece 42 on the upper rod 11 side is locked. This prevents the upper eyelid 11 and the lower eyelid 12 from separating. Further, the large-diameter portion 43 of the core member 41 is formed to have a size that slides on the restraining surface 16a of the elastic deformation restraining body 16, and restrains the elastic body 17 in a substantially sealed state so as to increase the bearing pressure. It functions like a piston, allows vertical displacement, and functions as a horizontal displacement prevention unit, and restricts horizontal displacement by the core member 41. Thereby, it is possible to prevent the upper collar 11 and the lower collar 12 from being relatively displaced in the horizontal direction. Furthermore, a gap is provided between the lifting prevention piece 42 and the lower rod 12 so that the lifting prevention piece 42 does not hit the lower rod 12 when the vertically downward upper rod 11 is displaced.

Even in such a support device 40, as in the support devices 10 and 30 described above, the elastic body 17 supported by the lower collar 12 is surrounded by the upper collar 11 and the elastic deformation restraining body 16, so that A constrained surface is formed by providing a convex space 18 and a concave portion 19 on the side surface of the elastic body 17 while constituting a sealed space and realizing a high load support with a small bearing area like a substantially sealed rubber bearing. By providing a gap with 16a, vertical flexible displacement according to the vertical load can be made possible. In addition, during the rotation action, the elastic body 17 is more easily deformed by the gap between the convex portion 18 or the concave portion 19, and good rotational followability can be realized. And as shown in the said FIG. 7, by providing a clearance gap by the recessed part 19 and the convex part 18 between the constraining surface 16a and the side surface of the elastic body 17, a more highly sealed state is so that there is a big input. It is possible to reduce the amount of increase in the vertical displacement amount by changing the pressure to high pressure.

In the support device 40, the elastic body 17 serving as a support body may be an elastic body 13 having a single elastic layer (see FIG. 2-4). Alternatively, the upper eyelid 11 may be used as the lower eyelid, and the lower eyelid 12 may be used as the upper eyelid. Furthermore, when installing in the upper structure 1 and the lower structure 2, as described above, the upper plate 3 and the lower plate 5 may be interposed and fixed, and the sliding members 4 and 6 are further interposed. It is possible to fix them (see FIG. 1).

[8. Modification 3 of bearing device]
A support device 50 shown in FIG. 17 is a further modification of the support device 40 of FIG. In this support device 50, a core material 51 is attached to the lower rod 12, and a lifting prevention portion and a horizontal displacement prevention portion are provided. In this support device 50, an elastic body 17 having a laminated structure in which an elastic layer 17b and a reinforcing plate 17a are laminated is interposed between an upper collar 11 as a first rigid body and a lower collar 12 as a second rigid body. ing.

The upper arm 11 is disposed on the upper surface of the elastic body 17, and the elastic deformation restraining body 16 is fixed to the outer periphery. For example, fixing means 16b such as bolts and nuts can be used for coupling the upper collar 11 and the elastic deformation restraining body 16. Further, as the fixing means 16b, either one of the upper collar 11 and the elastic deformation restraining body 16 is provided with a male screw and the other is provided with a female screw, and these are screwed together and welded together. It can be performed by a conventionally known bonding method or the like. The tip of the elastic deformation restraining body 16 on the lower collar 12 side is formed with a flange-shaped lifting prevention piece 52 projecting inward.

The lower end of the core material 51 is fixed to the lower collar 12 serving as a base plate. The lower end surface of the core material 51 is provided with a positioning convex portion 51a, and the positioning convex portion 51a is positioned by being fitted into the positioning concave portion 51b on the lower collar 12 side. Further, the lower rod 12 is formed with an insertion hole 55a, and the fixing bolt 55b is fixed by being fastened to a fixing hole 55c provided at the lower end portion of the core member 51. A large-diameter portion 53 serving as a support surface for supporting the elastic body 17 is integrally provided at the upper end portion of the core material 51. The large-diameter portion 53 is provided with a screw hole 53a at the center of the back surface, and is integrated by tightening a screw portion 54 formed at the tip of the core material 51 into the screw hole 53a. In addition, the bolt head part of the fixing bolt 55b is accommodated without protruding into the recess 55d communicating with the insertion hole 55a of the lower collar 12.

The large-diameter portion 53 integral with the core material 51 engages with the rising prevention piece 52 of the elastic deformation restraining body 16 whose lower surface of the outer peripheral portion is fixed to the outer peripheral portion of the upper collar 11. The large-diameter portion 53 of the core member 51 integrated with the lower rod 12 serves as a lifting prevention portion, and when the upper lifting force is applied to the upper collar 11, the lifting prevention piece 52 on the upper collar 11 side is locked. This prevents the upper eyelid 11 and the lower eyelid 12 from separating. Further, the large-diameter portion 53 of the core material 51 is preferably sized so as to slide on the restraining surface 16a of the elastic deformation restraining body 16 (it does not necessarily have to be sized to slide). 17 is preferably set to a size that can be constrained to a substantially sealed state), and functions as a piston that restrains the elastic body 17 in a substantially sealed state to increase the bearing pressure, and allows vertical displacement. Moreover, it becomes a horizontal displacement prevention part and the displacement in the horizontal direction is regulated by the core material 51. Thereby, it is possible to prevent the upper collar 11 and the lower collar 12 from being relatively displaced in the horizontal direction. Furthermore, a gap is provided between the lifting prevention piece 52 and the lower rod 12 so that the upper prevention piece 52 does not hit the lower rod 12 when the upper rod 11 is displaced vertically downward. .

Even in such a bearing device 50, the elastic body 17 supported by the lower rod 12 is surrounded by the upper rod 11 and the elastic deformation restraining body 16 in the same manner as the above-described bearing devices 10, 30, and 40. As a result, the bearing device 50 forms a substantially sealed space and realizes a high load bearing with a small bearing area like a sealed rubber bearing, while the convex portion 18 and the concave portion on the side surface of the elastic body 17. 19 and providing a gap between the constraining surface 16a, a vertical flexible displacement with respect to a vertical load can be realized. In addition, during the rotation action, the elastic body 17 is more easily deformed by the gap between the convex portion 18 or the concave portion 19, and good rotational followability can be realized. And as shown in the said FIG. 7, by providing a clearance gap by the recessed part 19 and the convex part 18 between the constraining surface 16a and the side surface of the elastic body 17, the more highly sealed state is, so that there is a big load. Thus, the amount of increase in the vertical displacement can be reduced.

In this bearing device 50, the elastic body 17 serving as a bearing body may be an elastic body 13 having a single elastic layer (see FIG. 2-4). Alternatively, the upper eyelid 11 may be used as the lower eyelid, and the lower eyelid 12 may be used as the upper eyelid. Furthermore, when installing in the upper structure 1 and the lower structure 2, as described above, the upper plate 3 and the lower plate 5 may be interposed and fixed, and the sliding members 4 and 6 are further interposed. It is possible to fix them (see FIG. 1).

[9. Modification 4 of bearing device]
In the above example, the case where the convex portions 14 and 18 and the concave portions 15 and 19 are provided on the side surfaces of the elastic bodies 13 and 17 has been described. However, as shown in FIG. Instead of providing the portions 14 and 18 and the concave portions 15 and 19, the convex portion 61 or the concave portion 62 may be provided on the restraining surface 16 a of the elastic deformation restraining body 16. The structure of the support device is the same as that of the support device 40 shown in FIG. Here, as an example, the laminated elastic body 17 is used. In FIG. 18, a flange-shaped lifting prevention piece 52 is fixed to the distal end portion of the elastic deformation restraining body 16 on the lower collar 12 side by a fixing means 16 c such as a bolt and a nut so as to protrude inward.

18 is provided with a convex portion 61 at the position of the elastic layer 17b on the free side surface and a concave portion 62 at the position of the reinforcing plate 17a. In this case, when a load is applied to the convex portion 61, the free side surface of the elastic layer 17 b bulges, so that the side surface that bulges laterally between the reinforcing plates 17 a and 17 a is pressed into contact with the convex portion 61. Will be. Of course, in the present invention, as shown in FIG. 19, the position of the reinforcing plate 17 a may be the convex portion 61 and the position of the elastic layer 17 b may be the concave portion 62. In this case, the free side surface of the elastic layer 17b which is the concave portion 62 slightly bulges so that the convex portion 61 and the concave portion 62 are pressed against the constraining surface 16a of the elastic deformation constraining body 16 in the same manner. Can be made. Thus, even when the convex portion 61 and the concave portion 62 are provided on the restraining surface 16 a of the elastic deformation restraining body 16, the convex portions 14 and 18 and the concave portions 15 and 19 are provided on the side surfaces of the elastic bodies 13 and 17. Similar effects can be obtained. However, when a convex portion or a concave portion is provided on the inner peripheral surface side of the elastic deformation restraining body 16 to provide a gap between the elastic bodies 13 and 17, a vertical displacement occurs when a load is input, As a result, the position of each reinforcing plate 17a disposed inside the elastic bodies 13, 17 is displaced vertically downward, and the positional relationship between the reinforcing plate 17a and the convex portion 61 is shifted from the set position, so that the required performance can be exhibited. There is a risk of disappearing. Further, processing the rigid inner peripheral surface of the elastic deformation restraining body 16 is more expensive than processing the free side surfaces (elastic peripheral surfaces) of the elastic bodies 13 and 17. Therefore, it is preferable to provide the convex portions and the concave portions on the elastic bodies 13 and 17 side.

[10. Other variations]
In the above description, the bridge support device has been described as the support device of the present invention. However, the present invention is not limited to the bridge support device, but as a support device for vibration control and seismic isolation of various structures. It can be adopted.

(Second embodiment)
Hereinafter, a support device according to a second embodiment of the present invention will be described with reference to the drawings. Hereinafter, the support device will be described in the following order.

1. 1. Explanation of bearing device 2. Description of elastic body and elastic deformation restraint body 3. Description of elastic sealing body 4. Explanation of operation of bearing device 5. Explanation of laminated elastic body Modification 1 of bearing device
7). Modification 2 of bearing device
8). Modification 3 of bearing device
9. Modification 4 of bearing device
10. Modification 5 of bearing device
11. Other variations

[1. Description of bearing device]
As shown in FIG. 20, the support device 110 is mounted between an upper structure 101 such as a bridge girder and a lower structure 102 such as a bridge pier or an abutment to support various loads such as a horizontal load, a vertical load, and a rotational load. At the same time, it is a bridge support device that supports and absorbs and disperses vibrations, vibrations and stresses caused by earthquakes, winds, dynamic or static traffic loads, and the like. In the support device 110, an elastic body 113 serving as a support body is interposed between an upper collar 111 serving as a first rigid body and a lower collar 112 serving as a second rigid body. The elastic body 113 is surrounded by an elastic deformation restraining body 116 fixed to the upper collar 111 or the lower collar 112 (here, the upper collar 111). Further, in the support device 110, foreign matters such as moisture and dust enter between the front end portion 116d of the elastic deformation restraining body 116 and the upper structure 101 or the lower structure 102 (here, the lower structure 102). An elastic sealing body 120a is provided to prevent this.

The upper plate 111 is made of a rigid material such as metal, ceramics, hard resin, or reinforced resin such as FRP. However, the upper collar 111 is not limited to these materials like the upper collar 11 described above. The shape is preferably a square or a circle, but is not limited to these shapes.

As a means for fixing the upper collar 111 to the upper structure 101, the upper collar 111 may be directly fixed to the upper structure 1 by using fastening means such as bolts and nuts, for example. The upper collar 111 is indirectly fixed to the upper structure 101 using an upper plate 103 having a plate shape larger than 111. The method for fixing the upper collar 111 to the upper structure 1 is not limited to these examples.

When used as a movable support device or the like, a sliding member 104 is disposed above the upper rod 111, for example, between the upper rod 111 and the upper plate 103, so that the upper structure 101 and the support device 110 are relative to each other. You may fix so that displacement is possible. As the sliding member 104, for example, a plate having a surface with a low friction coefficient such as polytetrafluoroethylene (PTFE) which is a kind of fluorocarbon resin is fixed to the upper surface of the upper collar 111, or It can be configured by being fixed to the upper structure 101 or the lower surface on the attachment means side fixed to the upper structure 101.

The lower arm 112, like the upper arm 111, is made of a rigid material such as metal, ceramics, hard resin, or reinforced resin such as FRP. However, the lower collar 112 is not limited to these materials, like the upper collar 12 described below. The shape is preferably a square or a circle, but is not limited to these shapes. However, the planar shape and the like of the lower eyelid 112 do not necessarily coincide with the upper eyelid 111, but the size of each part, the shape and position of the convex portion and the recessed portion, etc. are set by the setting of the lower eyelid 112 and the upper eyelid 111. Must be aligned with each other.

As a means for fixing the lower rod 112 to the lower structure 102, the lower rod 112 may be directly fixed to the lower structure 102 using fastening means such as bolts and nuts, for example. The lower collar 112 is indirectly fixed to the lower structure 2 using lower fixing means such as the lower plate 105 having a plate shape larger than 112. The method of fixing the lower collar 112 to the lower structure 102 is not limited to these examples.

When used as a movable support device, a sliding member 106 is disposed below the lower rod 112, for example, between the lower plate 105 and the lower rod 112, so that the lower structure 102 and the support device 110 are relative to each other. You may fix so that displacement is possible. As the sliding member 106, for example, a plate having a surface with a low friction coefficient such as PTFE is fixed to the lower surface of the lower collar 112, or is fixed to the lower structure 2 or the lower structure 102. It is possible to fix to the upper surface on the means side.

It should be noted that the direct or indirect fixing of the upper arm 111 or the lower arm 112 is preferably a detachable method, and fastening with bolts, nuts, etc. is an example.

[2. Explanation of elastic body and elastic deformation restraint body]
The elastic body 113 is formed using natural rubber, synthetic rubber, thermoplastic elastomer, or thermosetting elastomer, similarly to the elastic body 13 of the first embodiment described above. Since the material is the same as that of the elastic body 13, the details are omitted. The elastic body 113 used here may be one elastic layer (single layer) or may be a laminated type with a reinforcing plate 17a interposed.

And the elastic body 113 is provided with a convex portion 114 and a concave portion 115 on the side surface in the circumferential direction.

In the example shown in FIG. 20, the elastic body 13 as described above is disposed on and supported by the lower eyelid 12. The elastic body 13 may be bonded to the upper collar 11 and the lower collar 12 to increase the bearing pressure. However, by not bonding, the elastic follower 13 can also achieve good rotation followability.

The elastic body 13 is surrounded by an elastic deformation restraining body 116. The elastic deformation restraining body 116 is a cylindrical body having an inner diameter slightly larger than the outer diameter of the elastic body 113, and is fixed to either the upper collar 111 or the lower collar 112, or the outer periphery of the upper collar 111 in FIG. 20. For example, the upper collar 111 and the elastic deformation restraining body 116 may be coupled using a fixing means 116b such as a bolt and a nut. As the fixing means 116b, either one of the upper collar 111 and the elastic deformation restraining body 116 is provided with a male screw, and the other is provided with a female screw. Further, it can be performed by a conventionally known bonding method. The distal end portion 116d on the lower collar 112 side of the elastic deformation restraining body 116 is located outside the outer peripheral portion of the lower collar 112 and is not fixed. Thereby, when the vertical load is input, the upper collar 111 can move vertically downward while compressing the elastic body 113. That is, since the tip 116 d on the lower collar 112 side of the elastic deformation restraining body 116 is positioned outside the outer peripheral portion of the lower collar 112, the lower collar 112 is elastically disposed between the upper collar 111 and the lower collar 112. The function of suppressing the shear deformation of the body 113 and the role of a piston that restrains the elastic body 113 in a substantially sealed state to increase the bearing pressure are realized. Thus, the elastic body 113 supported by the lower collar 112 is surrounded by the upper collar 111 and the side surface by the elastic deformation restraining body 116, and is disposed in a semi-sealed space. The bearing device 110 is a semi-sealed rubber bearing, and can support a high load with a small bearing area.

[3. Explanation of elastic sealing body]
As shown in FIG. 20, the elastic sealing body 120a is a ring-shaped packing made of an elastic material having elastic characteristics such as a rubber material or a synthetic resin material. In FIG. It is disposed in the gap between the portion 116d and the lower plate 105. Further, the elastic sealing body 120a has a rectangular cross section, for example. The material constituting the elastic sealing body 120 is not necessarily required to be elastic, but may be configured so as to follow the displacement of the elastic deformation restraining body 116 while maintaining sealing properties such as water tightness. Therefore, for example, it is possible to use a flexible material or a metal material formed in a bellows shape. Further, the elastic sealing body 120a having a rectangular cross section has a length in the thickness direction that is an elastic deformation restraint body when the support device 110 is installed between the upper structure 101 and the lower structure 102. 116 is longer than the gap between the front end portion 116 d of 116 and the lower plate 105. As a result, the elastic sealing body 120a is disposed in the gap between the distal end portion 116d of the elastic deformation restraining body 116 and the lower plate 105 in a state of being bent inward or outward (inward in FIG. 20). . The elastic sealing body 120a having such a shape is attached to the distal end portion 116d of the elastic deformation restraining body 116 and the lower plate 105 by adhesion or the like.

In this way, the elastic sealing body 120a closes the gap between the distal end portion 116d of the elastic deformation restraining body 116 and the lower plate 105. Therefore, the elastic sealing body 120a can prevent foreign matters such as moisture and dust from entering the inside of the support device 110, and can ensure the sealing performance of the support device 110. Further, since the elastic sealing body 120a is formed of an elastic material or the like, even if the elastic deformation restraining body 116 approaches or separates from the lower plate 105 in the vertical displacement direction due to a vertical load, the elastic sealing body 120a expands and contracts. I can do it. Therefore, the elastic sealing body 120a allows foreign matters such as moisture and dust to enter the support device 110 even if the elastic deformation restraining body 116 approaches or separates from the lower plate 105 in the vertical displacement direction due to a vertical load. Can be prevented, and the sealing property of the bearing device 110 can be secured. That is, the elastic sealing body 120a has a sealing function.

The elastic sealing body 120a has a length in the thickness direction between the distal end portion 116d of the elastic deformation restraining body 116 and the lower structure 102 when the lower collar 112 is directly fixed to the lower structure 102. It is provided with substantially the same length as the gap between them, and is attached to the distal end portion 116d of the elastic deformation restraining body 116 and the lower structure 102 by adhesion or the like. Thereby, the elastic sealing body 120a has a gap between the distal end portion 116d of the elastic deformation restraining body 116 and the lower structure 102 even when the lower collar 112 is directly fixed to the lower structure 102. Can be occluded. Therefore, the elastic sealing body 120a can prevent foreign matters such as moisture and dust from entering the inside of the support device 110, and can ensure the sealing performance of the support device 110.

Furthermore, the elastic sealing body 120a is not limited to being attached by adhesion, and may be attached by a conventionally known fixing method such as a fixing means such as a bolt and a nut.

Further, the elastic sealing body 120a can expand and contract following the vertical deformation even when the elastic deformation restraining body 116 approaches or separates from the lower structure 102 in the vertical displacement direction. Any material can be used as long as it can secure the property.

For example, as shown in FIG. 21A, the elastic sealing body 120a has a length in the thickness direction, and the elastic deformation restraint body 116 when the support device 110 is installed between the upper structure 101 and the lower structure 102. It may be provided with a length substantially the same as or slightly shorter than the gap between the front end portion 116 d and the lower plate 105. Further, the elastic sealing body 120a may have a circular cross section as shown in FIG. 21B. Furthermore, the elastic sealing body 120a may have a hollow circular shape (cylindrical shape) as shown in FIG. 21C. Further, the elastic sealing body 120a may have a bellows shape as shown in FIG. 21D.

Furthermore, as shown in FIG. 21E, the circular or hollow circular elastic sealing body 20a may be disposed in the disposition recess 116e provided at the tip 116d of the elastic deformation restraining body 116.

Furthermore, the bellows-like elastic sealing body 120a may be formed of a thin metal. Even if the bellows-like elastic sealing body 120a is formed of a thin metal, it follows the shape even if the elastic deformation restraining body 116 approaches or moves away from the lower structure 102 in the vertical displacement direction due to a vertical load. Can be expanded and contracted, and the sealing property of the support device 110 can be secured.

Further, the elastic sealing body 120a is attached to the distal end portion 116d side of the outer peripheral portion of the elastic deformation restraining body 116 so as to close the gap between the distal end portion 116d of the elastic deformation restraining body 116 and the lower structure 102 or the lower plate 105. Anyway.

Furthermore, the elastic sealing body 120a may be attached between the front end portion 116d of the elastic deformation restraining body 116 and the outer peripheral portion of the lower collar 112.

Further, as shown in FIG. 22, the elastic sealing body 120a is composed of a ring member made of the same material as or different from the elastic body 113 among the materials of the elastic body 113 described above, and is capable of supporting a load. May be. That is, the elastic sealing body 120a is a support body similar to the elastic body 113, and may have a load support function in addition to the sealing function.

[4. Explanation of operation of bearing device]
When the above-described support device 110 is installed between the upper structure 101 and the lower structure 102, as shown in FIG. 20, the elastic body 113 has a load in a normal use range (for example, a dead load or a death load). The convex portion 114 of the elastic body 113 is positioned close to or in contact with the restraining surface 116a of the elastic deformation restraining body 116 surrounding the elastic body 113. In the support device 110, the elastic body 113 is elastically deformed according to the magnitude of the vertical load, and the elastic deformation restraint is performed while the side surface convex portion 114 is deformed so as to fill the gap formed by the concave portion 115. The body 116 is pressed against the restraining surface 116a. That is, the displacement amount of the elastic body 113 is limited by the elastic deformation restraining body 116.

In such a support device 110, the elastic body 113 supported by the lower collar 112 is surrounded by the upper collar 111 and the elastic deformation restraining body 116, and a convex portion 114 and a concave portion 115 are provided on the side surface of the elastic body 113, A semi-sealed space having a predetermined gap is provided between the constraining surface 116a. Therefore, at the beginning of input or at the time of low load input, as the input becomes higher while performing vertical flexible displacement with respect to the vertical load, the increase in vertical displacement gradually decreases and the elastic modulus increases, resulting in a large load. It behaves like a sealed rubber bearing with respect to the input and realizes high load support with a small bearing area.

In addition, when a rotational force is applied in the vertical plane over a low load to a high load input, the elastic body 113 is partially supported by the elastic deformation restraining body 116, but the elastic body due to the gap between the convex portion 114 or the concave portion 115. 113 is deformed, and excellent rotation followability can be realized without an extreme load on the elastic body.

[5. Explanation of laminated elastic body]
In the above example, the support device 110 using the elastic body 113 having a single elastic layer has been described. As the elastic body 113, as shown in FIG. 23A, a laminated structure in which an elastic layer and a reinforcing plate are laminated. The elastic body 117 may be used. The elastic body 117 is provided with a reinforcing plate 117a, a plurality of elastic layers 117b, and the reinforcing plate 117a and the elastic layer 117b are bonded to each other by vulcanization bonding. When a load is applied to the single-layer elastic body 113, the free side surface is pushed out to the side, and in particular, bulges around the central portion in the thickness direction. In the laminated elastic body 117, the presence of the reinforcing plate 117a suppresses the swelling of the free side surface of the elastic body 117 and increases the load bearing capacity. However, since the side surface of the elastic layer 117b between the reinforcing plates 117a is also a free side surface, it slightly bulges to the side according to the magnitude of the load. However, in the support device 10, the elastic deformation restraining body 116 restrains the deformation of the elastic body 117, so that the bulging amount is small. Even in the elastic body 117, the convex portion 118 and the concave portion 119 are provided in the thickness direction on the side surface along the circumferential direction.

That is, as shown in FIG. 23A, in the laminated elastic body 117, on the side surface, the convex portion 118 is provided at the position of the elastic layer 117b on the free side surface, and the concave portion 119 is provided at the position of the reinforcing plate 117a. In this case, when the load is applied, the convex portion 118 comes into strong pressure contact with the constraining surface 116a of the elastic deformation constraining body 116 before the concavity 119, because the free side surface of the elastic layer 117b bulges. Of course, conversely, the position of the reinforcing plate 117a may be the convex portion 118, and the position of the elastic layer 117b may be the concave portion 119. In this case, since the free side surface of the elastic layer 117b which is the concave portion 119 slightly bulges, the convex portion 118 and the concave portion 119 are similarly brought into contact with the constraining surface 116a of the elastic deformation constraining body 116. It can be made to press. The laminated elastic body 117 is the elastic portion at the position between the reinforcing plates that has the largest bulging amount in the past. The convex portion 118 is provided at this portion, and the convex portion is formed by the restraining surface 116a of the elastic deformation restraining body 116. Since the bulging amount around 118 is constrained, local stress on the elastic layer 117b around the internal reinforcing plate 117a is relieved even when a high load is input. In addition, the internal reinforcing plate 117a is not easily crushed by a high load, and the reinforcing plate 117a can be thinned, and the overall thickness of the support device 110 can be reduced.

In the example of FIG. 23A, the upper collar 111 and the elastic deformation restraining body 116 may be integrally configured. In the laminated elastic body 117, the vertical load support performance, the horizontal load support performance, and the vertical rotation performance are adjusted by the area and thickness of the elastic layer, the number, the area and thickness of the reinforcing plate, the number, and the like. I can do it. Further, the upper collar 111 and the elastic deformation restraining body 116 may be coupled using a fixing means 116b such as a bolt or nut. Further, as the fixing means 116b, a male screw is provided on one of the upper collar 111 and the elastic deformation restraining body 116, a female screw is provided on the other, and these are screwed together and welded together. Further, it can be performed by a conventionally known bonding method or the like.

Further, the number of reinforcing plates 117a may be one or more. Further, in the case of a plurality of sheets, for example, a plurality of reinforcing plates 117a may be provided apart from each other in parallel, or a plurality of annular reinforcing plates 117a may be provided concentrically.

[6. Modification 1 of bearing device]
Note that the support device 110 may be used upside down with the upper collar 111 serving as the lower collar and the lower collar 112 serving as the upper collar. In this case, the elastic sealing body 120 a is provided between the elastic deformation restraining body 116 and the upper structure 101 or the upper plate 103. Accordingly, even in such a support device 110, the elastic sealing body 120a can prevent foreign matters such as moisture and dust from entering the inside, and can ensure sealing.

Further, the support device 110 may fix the elastic deformation restraint body 116 to the outer peripheral portion of the lower rod 112 instead of the upper rod 111 by the fixing means 116b. In this case, the tip end portion 116 d of the elastic deformation restraining body 116 is located outside the outer peripheral portion of the upper collar 111 and is not fixed. Then, the elastic body 117 is inserted into the pot portion constituted by the lower collar 112 and the elastic deformation restraining body 116, and then the upper collar 111 is disposed on the elastic body 117. Even in such a support device 110, when the vertical load is input, the upper collar 111 can be displaced vertically downward while compressing the elastic body 113, and the same effect as the example of FIG. 20 is obtained. I can do it.

In this case, the elastic sealing body 120 a is provided between the elastic deformation restraining body 116 and the upper structure 101 or the upper plate 103. Accordingly, even in such a support device 110, the elastic sealing body 120a can prevent foreign matters such as moisture and dust from entering the inside, and can ensure sealing.

[7. Modification 2 of bearing device]
A support device 130 shown in FIG. 23A is a device in which a core 131 is attached to a lower collar 112 and a lifting prevention portion and a horizontal displacement prevention portion are provided. The support device 130 includes an elastic body 117 having a laminated structure in which an elastic layer and a reinforcing plate are laminated between an upper collar 111 as a first rigid body and a lower collar 112 as a second rigid body. ing. The upper collar 111 of the support device 130 is provided with a through hole 132 penetrating the front and back surfaces. The core 131 is inserted into the through hole 132 from the upper surface side of the upper collar 111. The through-hole 132 is formed to a depth that allows the tip surface of the core 131 to be lowered by one step without protruding from the upper surface of the upper collar 111 in consideration of the amount of displacement of the upper collar 111 vertically downward. In the through hole 132, a lifting prevention piece 132a is formed in a flange shape.

The core member 131 inserted through the through hole 132 is made of a metallic bolt-shaped member having a head portion that becomes the large diameter portion 133, and the large diameter portion 133 that is the tip portion is inside the through hole 132 of the upper collar 111. It is set to a size that can be accommodated. The core 131 is inserted into the insertion hole 134 formed in the substantially central portion of the elastic body 117 from the through hole 132 of the upper collar 111, and further, the screw formed on the support surface side of the elastic body 117 of the lower collar 112. It is fixed by being screwed into the hole 135. When the core 131 is inserted from the through hole 132 and fixed to the screw hole 135, the large diameter portion 133 is accommodated in the through hole 132 so as to be lowered by one step. The core member 131 is fixed to the lower collar 112 so that when the upper collar 111 and the lower collar 112 are about to be displaced relatively in the horizontal direction, the leading end surface of the lifting prevention piece 132a or the side surface of the through hole 132 is At the end, the displacement of the upper collar 111 is regulated. That is, the core member 131 functions as a horizontal displacement prevention unit and prevents the upper collar 111 and the lower collar 112 from being excessively displaced in the horizontal direction. Further, the large-diameter portion 133 of the core member 131 is larger than the opening diameter of the rising prevention piece 132a of the through hole 132 and engages with the rising prevention piece 132a. The core member 131 has a large-diameter portion of the core member 131 fixed to the lower collar 112 when an upper lifting force is applied to the upper collar 111, that is, when the upper collar 111 attempts to lift relative to the lower collar 112. Since the lifting prevention piece 132a is locked to 133, it is possible to prevent the upper collar 111 and the lower collar 112 from being separated. That is, the large diameter part 133 functions also as a lifting prevention part.

Further, the elastic body 117 is surrounded by the elastic deformation restraining body 116 as shown in FIG. 23A. The elastic deformation restraining body 116 is a cylindrical body having an inner diameter slightly larger than the average outer diameter of the elastic body 117, and is fixed to the outer peripheral portion of the upper collar 111, and a pot portion in which the elastic body 117 is accommodated is formed inside thereof. Has been. For example, the upper collar 111 and the elastic deformation restraining body 116 may be coupled using a fixing means 116b such as a bolt and a nut. As the fixing means 116b, either one of the upper collar 111 and the elastic deformation restraining body 116 is provided with a male screw, and the other is provided with a female screw. It can be performed by a conventionally known bonding method or the like.

The tip 116d of the elastic deformation restraining body 116 on the lower collar 112 side is located outside the outer periphery of the lower collar 112 and is not fixed. Thereby, when the vertical load is input, the upper collar 111 can be displaced vertically downward while compressing the elastic body 113. That is, the tip 116 d on the lower collar 112 side of the elastic deformation restraining body 116 is positioned outside the outer peripheral portion of the lower collar 112, so that it cooperates with the core member 131 and between the upper collar 11 and the lower collar 112. It functions to suppress the shear deformation of the elastic body 117 disposed in the cylinder, and serves as a cylinder that restrains the elastic body 117 in a semi-sealed state to increase the bearing pressure. Thus, the elastic body 117 supported by the lower collar 112 is disposed in a semi-sealed space with the upper surface surrounded by the upper collar 111 and the side surface by the elastic deformation restraining body 116. That is, the bearing device 130 is a semi-sealed rubber bearing, and can support a high load with a small bearing area.

Even in such a support device 130, similarly to the support device 110 described above, the elastic body 117 supported by the lower arm 112 is surrounded by the upper arm 111 and the elastic deformation restraining body 116. As a result, the bearing device 130 forms a semi-sealed space and realizes a high load bearing with a small bearing area like a semi-sealed rubber bearing, while the convex portion 118 is formed on the side surface of the elastic body 117. And the concave portion 119 are provided, and a vertical flexible displacement with respect to a vertical load can be realized by providing a gap between the constraining surface 116a. In addition, when the rotating action is performed, the elastic body 117 is deformed by a gap formed by the convex portion 118 or the concave portion 119, and good rotation followability can be realized. Then, by providing a gap between the constraining surface 116a and the side surface of the elastic body 117 by the concave portion 119 and the convex portion 118, the larger the load is inputted, the more the state is changed to a more advanced sealed state and the vertical displacement amount is reduced. The increase amount can be reduced.

Further, even in such a support device 130, similarly to the support device 110, moisture and moisture are contained inside by the elastic sealing body 120 a provided between the elastic deformation restraining body 116 and the lower structure 102 or the lower plate 105. Foreign matter such as dust can be prevented from entering, and sealing performance can be secured.

In the support device 130, the elastic body 117 serving as a support body may be a single-layer elastic body 113.

Alternatively, the upper side 111 may be used as the lower side and the lower side 112 may be used as the upper side. In this case, the elastic sealing body 120 a is provided between the elastic deformation restraining body 116 and the upper structure 101 or the upper plate 103. As a result, even in such a support device 130, foreign materials such as moisture and dust can be prevented from entering inside by the elastic sealing body 120a, and sealing performance can be ensured.

Furthermore, when installing in the upper structure 101 and the lower structure 102, as above-mentioned, you may fix by interposing the upper plate 103 and the lower plate 105, and also interposing the sliding members 104 and 106. It may be fixed. In this case, the elastic sealing body 120a is provided between the elastic deformation restraint body 116 and the upper plate 103 or the lower plate 105, or between the elastic deformation restraint body 116 and the sliding member 104 or the sliding member 106. To do. Thereby, even in such a support device 130, foreign materials such as moisture and dust can be prevented from entering the inside by the elastic sealing body 120a, and sealing performance can be secured.

Further, as shown in FIG. 23B, the support device 130 may fix the elastic deformation restraining body 116 to the outer peripheral portion of the lower rod 112 instead of the upper rod 111 by the fixing means 116b. In this case, the tip end portion 116 d of the elastic deformation restraining body 116 is located outside the outer peripheral portion of the upper collar 111 and is not fixed. The elastic body 117 is inserted into the pot portion formed by the lower collar 112 and the elastic deformation restraining body 116, and then the upper collar 111 is disposed on the elastic body 117, and the core member 131 is attached to the elastic body 117. It is inserted into the insertion hole 134 and fixed to the screw hole 135 of the lower collar 112. Even in the support device 130 as shown in FIG. 23B, when the vertical load is input, the upper collar 111 can be displaced vertically downward while compressing the elastic body 113, which is similar to the example of FIG. 23A. An effect can be obtained.

In this case, the elastic sealing body 120 a is provided between the elastic deformation restraining body 116 and the upper structure 101 or the upper plate 103. As a result, even in such a support device 130, foreign materials such as moisture and dust can be prevented from entering inside by the elastic sealing body 120a, and sealing performance can be ensured.

[8. Modification 3 of bearing device]
In the support device 140 shown in FIG. 24, the core member 141 is configured such that the upper collar 111 and the lower collar 112 are not penetrated. In this support device 140, a core member 141 is attached to a lower collar 112, and a lifting prevention portion and a horizontal displacement prevention portion are provided. The support device 140 includes an elastic body 117 having a laminated structure in which an elastic layer and a reinforcing plate are laminated between an upper collar 111 serving as a first rigid body and a lower collar 112 serving as a second rigid body. ing.

The upper collar 111 is disposed on the upper surface of the elastic body 117, and the elastic deformation restraining body 116 is fixed to the outer peripheral portion. For example, the upper collar 111 and the elastic deformation restraining body 116 may be coupled using a fixing means 116b such as a bolt and a nut. Further, as the fixing means 116b, a male screw is provided on one of the upper collar 111 and the elastic deformation restraining body 116, a female screw is provided on the other, and these are screwed together and welded together. It can be performed by a conventionally known bonding method or the like. A front end portion 116d on the lower collar 112 side of the elastic deformation restraining body 116 is formed with a flange-shaped lifting prevention piece 142 projecting inward.

The core member 141 is made of a metal bolt-shaped member having a head that becomes the large-diameter portion 143, and the tip portion is screwed into a screw hole 144 formed on the support surface side of the elastic body 117 of the lower collar 112. Fixed by. The core member 141 has a large-diameter portion 143 at the upper end portion, and serves as a support surface that supports the elastic body 117. Further, the large diameter portion 143 engages with the rising prevention piece 142 of the elastic deformation restraining body 116 fixed to the outer peripheral portion of the upper collar 111. The large-diameter portion 143 of the core member 141 fixed to the lower collar 112 has a role of the upper prevention section when the uplifting prevention piece 142 on the upper collar 111 side is locked when the upper lifting force is applied to the upper collar 111. This prevents the upper collar 111 and the lower collar 112 from separating. The large-diameter portion 143 of the core member 141 is formed to have a size that slides on the restraining surface 116a of the elastic deformation restraining body 116, and restrains the elastic body 117 in a semi-sealed state to increase the bearing pressure. It functions like a piston, allows vertical displacement, becomes a horizontal displacement prevention unit, and limits horizontal displacement by the core 141. Thereby, it is possible to prevent the upper hook 111 and the lower hook 112 from being relatively displaced in the horizontal direction. Furthermore, a gap is provided between the lifting prevention piece 142 and the lower rod 112 so that the lifting prevention piece 142 does not hit the lower rod 112 when the upper flange 111 is displaced vertically downward. .

Even in such a support device 140, the elastic body 117 supported by the lower rod 112 is surrounded by the upper rod 111 and the elastic deformation restraining body 116 in the same manner as the above-described support devices 110 and 130. As a result, in the support device 140, a semi-sealed space portion is formed, and a high load support is realized with a small support area like a sealed rubber support, while the convex portion 118 and the concave portion are formed on the side surface of the elastic body 117. 119 is provided, and a clearance is provided between the constraining surface 116a and vertical flexible displacement according to the vertical load can be made possible. In addition, during the rotating action, the elastic body 117 is more easily deformed by the gap formed by the convex portion 118 or the concave portion 119, and good rotation followability can be realized. Then, by providing a gap between the constraining surface 116a and the side surface of the elastic body 117 by the concave portion 119 and the convex portion 118, the larger the input, the more the sealed state is changed and the higher the bearing pressure. The increase amount of the vertical displacement amount can be reduced.

Furthermore, the bearing device 140 is provided with an elastic sealing body 120b for preventing foreign matters such as moisture and dust from entering the gap between the lifting prevention piece 142 and the lower rod 112.

The elastic sealing body 120b is a ring-shaped packing made of an elastic material having elastic characteristics such as a rubber material or a synthetic resin material, like the elastic sealing body 120a of the support devices 110 and 130, and is elastically deformed. It is disposed between the lifting prevention piece 142 and the lower rod 112 formed at the distal end portion 116 d of the restraining body 116. Furthermore, the elastic sealing body 120b has a rectangular cross section, for example. Further, the elastic sealing body 120b having a rectangular cross section has a length in the thickness direction, and the rising prevention piece 142 when the support device 140 is installed between the upper structure 101 and the lower structure 102. And longer than the gap between the lower arm 112 and the lower arm 112. Thereby, the elastic sealing body 120b is disposed in a gap between the lifting prevention piece 142 and the lower rod 112 in a state of being bent inward or outward (inward in FIG. 24). The elastic sealing body 120b having such a shape is attached to the lifting prevention piece 142 and the lower rod 112 by bonding or the like.

In this way, the elastic sealing body 120b closes the gap between the lifting prevention piece 142 and the lower rod 112. Therefore, the elastic sealing body 120b can prevent foreign matters such as moisture and dust from entering the inside of the support device 140, and can ensure the sealing performance of the support device 140. Further, since the elastic sealing body 120b is formed of an elastic material, even if the lifting prevention piece 142 is close to or separated from the lower rod 112 in the vertical displacement direction due to a vertical load, it can expand and contract. . Therefore, the elastic sealing body 120b can prevent foreign matter such as moisture and dust from entering the inside of the support device 140 even when the lifting prevention piece 142 is close to or separated from the lower rod 112 in the vertical displacement direction due to a vertical load. This can prevent the sealing of the bearing device 140. That is, the elastic sealing body 120b has a sealing function.

The elastic sealing body 120b is not limited to being attached by adhesion, and may be attached by a conventionally known fixing method such as a fixing means such as a bolt and a nut.

Further, the elastic sealing body 120b can expand and contract even if the lifting prevention piece 142 approaches or moves away from the lower rod 112 in the vertical displacement direction due to a vertical load, and further, the sealing performance of the bearing device 140 is improved. Any thing can be used as long as it can be secured.

For example, the elastic sealing body 120b has a length in the thickness direction between the upper prevention piece 142 and the lower rod 112 when the support device 140 is installed between the upper structure 101 and the lower structure 102. The length may be approximately the same as or slightly shorter than the gap (see FIG. 21A). Further, the elastic sealing body 120b may have a circular cross section (see FIG. 21B), a hollow circular shape (see FIG. 21C), or a bellows shape (see FIG. 21D).

Further, as shown in FIG. 25, the circular or hollow circular elastic sealing body 120b is arranged in the arrangement recess 142a provided on the surface facing the lower collar 112 of the lifting prevention piece 142. Also good.

Furthermore, the bellows-like elastic sealing body 120b may be formed of a thin metal. Even if the bellows-like elastic sealing body 120b is formed of a thin metal, the shape of the bellows-like elastic sealing body 120b expands and contracts even if the lifting prevention piece 142 approaches or moves away from the lower rod 112 in the vertical displacement direction due to a vertical load. The sealing of the support device 140 can be ensured. Furthermore, the bellows-like elastic sealing body 120b may be disposed on a tapered portion 142b provided on the tip surface of the lifting prevention piece 142 as shown in FIG.

Furthermore, the elastic sealing body 120b may be attached to the outer peripheral portion of the lifting prevention piece 142 so as to close the gap between the lifting prevention piece 142 and the lower collar 112. Furthermore, as shown in FIG. 27, the elastic sealing body 120b may be attached to the gap between the lifting prevention piece 142 and the core member 141. Further, the elastic sealing body 120b may be attached to the gap between the lifting prevention piece 142 and the large diameter portion 143.

Furthermore, the elastic sealing body 120b may be formed of a ring member formed of the same material as or different from the elastic body 113 among the materials of the elastic body 113 described above, and may be capable of supporting a load. That is, the elastic sealing body 120b is a support body similar to the elastic body 113, and may have a load support function in addition to the sealing function.

The elastic sealing body 120b having such a sealing function and a load support function is, for example, in a plan view (thickness direction view) in a gap between the lifting prevention piece 142 and the lower rod 112 as shown in FIG. So as not to overlap the elastic body 117. Further, as shown in FIG. 28B, the elastic sealing body 120b is disposed in the gap between the lifting prevention piece 142 and the lower rod 112 so as to overlap the elastic body 113 in plan view (thickness direction view). You may do it. Further, as shown in FIG. 28C, the elastic sealing body 120b is arranged in the gap between the lifting prevention piece 142 and the lower rod 112 so that the elastic body 117 partially overlaps in plan view (thickness direction view). It may be provided.

In any of these elastic sealing bodies 120b, foreign materials such as moisture and dust can be prevented from entering the inside of the support device 140, and in addition to ensuring the sealing performance of the support device 140, the elastic body The vertical load can be supported together with 117.

Further, the elastic sealing body 120b shown in FIGS. 28B and 28C is provided so as to at least partially overlap the elastic body 117 in plan view (thickness direction view), and is different from the elastic body 117 in the thickness direction. Since they are arranged so as to have overlapping parts, the elastic body 117 and the elastic sealing body 120b function as a multistage parallel spring. Thereby, in the support apparatus 140, it becomes possible to support a high load with a small support area while realizing miniaturization as a whole. Further, the elastic sealing body 120b includes a gap between the lifting prevention piece 142 and the lower flange 112, a gap between the lifting prevention piece 142 and the core member 141, and between the lifting prevention piece 142 and the large diameter portion 143. The elastic body 117 may be provided so as to at least partly overlap in a plan view (view in the thickness direction).

Further, in the support device 140, the elastic body 117 serving as a support body may be an elastic body 113 having a single elastic layer (see FIG. 20). Alternatively, the upper eyelet 111 may be used as the lower eyelid, and the lower eyelid 112 may be used as the upper eyelid. Furthermore, when installing the upper structure 101 and the lower structure 102, as described above, the upper plate 103 and the lower plate 105 may be interposed and fixed, and the sliding members 104 and 106 may be fixed. You may fix by interposing (refer FIG. 20).

[9. Modification 4 of bearing device]
A support device 150 shown in FIG. 29 is a further modification of the support device 140 of FIG. In this support device 150, a core 151 is attached to a lower collar 112, and a lifting prevention portion and a horizontal displacement prevention portion are provided. The support device 150 includes an elastic body 117 having a laminated structure in which an elastic layer 117b and a reinforcing plate 117a are laminated between an upper collar 111 serving as a first rigid body and a lower collar 112 serving as a second rigid body. ing.

The upper collar 111 is disposed on the upper surface of the elastic body 117, and the elastic deformation restraining body 116 is fixed to the outer peripheral portion. For example, a fixing means 116b such as a bolt or a nut can be used for coupling the upper collar 111 and the elastic deformation restraining body 116. Further, as the fixing means 116b, either one of the upper collar 11 and the elastic deformation restraining body 116 is provided with a male screw, and the other is provided with a female screw. It can be performed by a conventionally known bonding method or the like. A front end portion 116d on the lower collar 112 side of the elastic deformation restraining body 116 is formed with a flange-shaped lifting prevention piece 152 projecting inward. It should be noted that the flange-shaped lifting prevention piece 152 may be fixed to the tip end portion 116d on the lower collar 112 side of the elastic deformation restraining body 116 by a fixing means such as a bolt and a nut.

The lower end portion of the core material 151 is fixed to the lower collar 112 serving as a base plate. The lower end surface of the core 151 is provided with a positioning convex portion 151a, and the positioning convex portion 151a is positioned by being fitted into the positioning concave portion 151b on the lower collar 112 side. Further, an insertion hole 155 a is formed in the lower collar 112, and the fixing bolt 155 b is fixed by being fastened to a fixing hole 155 c provided at the lower end portion of the core member 151. A large-diameter portion 153 serving as a support surface for supporting the elastic body 117 is integrally provided at the upper end portion of the core material 151. The large-diameter portion 153 is provided with a screw hole 153a at the center of the back surface, and is integrated by tightening a screw portion 154 formed at the distal end portion of the core material 151 into the screw hole 153a. The bolt head of the fixing bolt 155b is accommodated without protruding into the recess 155d communicating with the insertion hole 155a of the lower collar 112.

The large-diameter portion 153 integrated with the core member 151 engages with the rising prevention piece 152 of the elastic deformation restraining body 116 whose lower surface of the outer peripheral portion is fixed to the outer peripheral portion of the upper collar 111. The large-diameter portion 153 of the core 151 integrated with the lower rod 112 is a function of the upper prevention portion when the upper lifting force is applied to the upper collar 111 and the upper prevention piece 152 on the upper collar 111 side is locked. This prevents the upper collar 111 and the lower collar 112 from separating. Further, the large-diameter portion 53 of the core member 151 is sized to slide on the restraining surface 116a of the elastic deformation restraining body 116, and the elastic body 117 is restrained in a semi-sealed state to increase the bearing pressure. It functions like a piston, allows vertical displacement, and functions as a horizontal displacement prevention unit, and regulates horizontal displacement by the core 151. Thereby, it is possible to prevent the upper hook 111 and the lower hook 112 from being relatively displaced in the horizontal direction. Furthermore, a gap is provided between the lifting prevention piece 152 and the lower rod 112 so that the lifting prevention piece 152 does not hit the lower rod 112 when the upper rod 111 is displaced vertically downward. .

Even in such a bearing device 150, the elastic body 117 supported by the lower rod 112 is surrounded by the upper rod 111 and the elastic deformation restraining body 116, similarly to the above-described bearing devices 110, 130, and 140. As a result, the bearing device 150 forms a semi-sealed space and realizes a high load bearing with a small bearing area like a sealed rubber bearing, while the convex portion 118 and the concave portion are formed on the side surface of the elastic body 117. 119 and a clearance between the constraining surface 116a and the vertical flexible displacement with respect to the vertical load can be realized. In addition, during the rotating action, the elastic body 117 is more easily deformed by the gap formed by the convex portion 118 or the concave portion 119, and good rotation followability can be realized. Then, by providing a gap between the constraining surface 116a and the side surface of the elastic body 117 by the concave portion 119 and the convex portion 118, the larger the load, the more the state is changed to a higher sealing state, and the amount of increase in the vertical displacement amount is increased. It can be made smaller.

Further, even in such a support device 150, as in the support device 140 of FIG. 28, moisture and dust are contained inside by the elastic sealing body 120b provided in the gap between the lifting prevention piece 152 and the lower collar 112. It is possible to prevent the entry of foreign matter such as, and to ensure sealing performance. Further, even in such a support device 150, as in the support device 140 of FIG. 28, foreign substances such as moisture and dust enter the support device 150 by providing the elastic sealing body 120b so as to be capable of supporting a load. In addition to ensuring the sealing performance of the support device 150, it is possible to support the vertical load together with the elastic body 117.

In this bearing device 150, the elastic body 117 serving as a bearing body may be a single-layer elastic body 113 (see FIG. 20). Alternatively, the upper eyelet 111 may be used as the lower eyelid, and the lower eyelid 112 may be used as the upper eyelid. Furthermore, when installing in the upper structure 101 and the lower structure 102, as above-mentioned, you may fix by interposing the upper plate 103 and the lower plate 105, and also interposing the sliding members 104 and 106. It may be fixed (see FIG. 20).

[10. Modification 5 of the bearing device]
In the above example, the case where the convex portions 114 and 118 and the concave portions 115 and 119 are provided on the side surfaces of the elastic bodies 113 and 117 has been described. However, as shown in FIG. Instead of providing the portions 114 and 118 and the concave portions 115 and 119, the constraining surface 116a of the elastic deformation constraining body 116 may be provided with a convex portion 161 or a concave portion 162 along the circumferential direction. The structure of the support device is the same as that of the support device 140 shown in FIG. Here, as an example, the laminated elastic body 117 is used. In FIG. 30, a flange-shaped lifting prevention piece 142 is fixed to a tip end portion 116 d on the lower collar 112 side of the elastic deformation restraining body 116 by a fixing means 116 c such as a bolt and a nut so as to protrude inward.

The assembly of such a support device is performed by fixing the upper collar 111 to the elastic deformation restraining body 116 by the fixing means 116b and forming the pot portion, or at least inserting the core member 141 of the elastic deformation restraining body 116, After the lifting prevention piece 142 is fixed by the fixing means 116c and the pot portion is formed, the elastic body 117 may be inserted into the pot portion.

30 is provided with a convex portion 161 at the position of the elastic layer 117b on the free side and a concave portion 162 at the position of the reinforcing plate 117a. In this case, when a load is applied to the convex portion 161, the free side surface of the elastic layer 117b bulges, so that the side surface that bulges laterally between the reinforcing plates 117a and 117a is pressed into contact with the convex portion 162. It will be.

Note that the position of the reinforcing plate 117a may be the convex portion 161, and the position of the elastic layer 117b may be the concave portion 162. In this case, the free side surface of the elastic layer 117b which is the concave portion 162 slightly bulges so that the convex portion 161 and the concave portion 162 are pressed against the constraining surface 116a of the elastic deformation constraining body 116 in the same manner. Can be made. Thus, even when the convex portion 161 and the concave portion 162 are provided on the restraining surface 116 a of the elastic deformation restraining body 116, the convex portions 114 and 118 and the concave portions 115 and 119 are provided on the side surfaces of the elastic bodies 113 and 117. Similar effects can be obtained.

Further, even in such a support device 150, like the support device 140 of FIG. 28 and the support device 150 of FIG. 29, the elastic sealing body 120b provided between the lifting prevention piece 152 and the lower collar 112 is used. It is possible to prevent foreign matter such as moisture and dust from entering the inside, and to ensure sealing. Further, even in such a support device 150, as in the support device 140 of FIG. 28, foreign substances such as moisture and dust enter the support device 150 by providing the elastic sealing body 120b so as to be capable of supporting a load. In addition to ensuring the sealing performance of the support device 150, it is possible to support the vertical load together with the elastic body 117.

[11. Other variations]
In addition, you may provide the elastic sealing bodies 120a and 120b doubly. For example, in addition to the elastic sealing body 120a having the sealing function and the load support function shown in FIG. 22, an additional elastic sealing body having the sealing function shown in FIGS. 20 and 21A to 21E may be mounted on the elastic deformation restraining body 116. You may make it provide in the outer peripheral part of the elastic sealing body 120a of the surface facing the collar 111 or the lower collar 112, or the outer peripheral part of the elastic deformation restraint body 116, etc. Further, in addition to the elastic sealing body 120b having the sealing function and the load support function shown in FIG. 28, a separate elastic sealing body having the sealing function shown in FIGS. It may be provided outside the elastic sealing body 120 b on the surface facing the 111 or the lower collar 112, or on the outer periphery of the lifting prevention piece 142. Furthermore, in addition to the elastic sealing body 120b having the sealing function and the load support function shown in FIG. 28, a separate elastic sealing body having the sealing function shown in FIG. 27 may be provided.

That is, in the present invention, the convex portions 114, 118 and the concave portions 115, 119 of the elastic bodies 113, 117 are not particularly limited in shape, number, interval, or the like. Furthermore, the elastic bodies 113 and 117 do not need to be provided with the convex portions 114 and 118 and the concave portions 115 and 119.

Further, in the above description, the bridge support device has been described as the support device of the present invention. However, the present invention is not limited to the bridge support device, and supports for vibration control and seismic isolation of various structures. It can be employed as a device.

(Third embodiment)
Hereinafter, a support device according to a third embodiment of the present invention will be described with reference to the drawings. Hereinafter, the support device will be described in the following order.

1. 1. Explanation of bearing device 2. Description of elastic body and elastic deformation restraint body 3. Explanation of operation of bearing device 4. Description of Modification 1 of the bearing device 5. Description of Modification 2 of Bearing Device 6. Description of Modification 3 of the bearing device 7. Description of Modification 4 of the bearing device 8. Description of Modification 5 of the bearing device 9. Description of Modification 6 of Bearing Device 10. Description of Modification 7 of Bearing Device 11. Description of modification 8 of bearing device 12. Description of modification 9 of bearing device 13. Description of Modification 10 of Bearing Device 15. Description of Modification 11 of Bearing Device Other variations

[1. Description of bearing device]
As shown in FIG. 31, the support device 210 is mounted between an upper structure 201 such as a bridge girder and a lower structure 202 such as a bridge pier or an abutment to support various loads such as a horizontal load, a vertical load, and a rotational load. At the same time, it is a bridge support device that supports and absorbs and disperses vibrations, vibrations and stresses caused by earthquakes, winds, dynamic or static traffic loads, and the like. In the support device 210, an elastic body 213 serving as a support body is interposed between an upper collar 211 serving as a first rigid body and a lower collar 212 serving as a second rigid body. The elastic body 213 is surrounded by an elastic deformation restraining body 216 fixed to the upper collar 211 or the lower collar 212 (here, the upper collar 211).

The upper plate 211 is made of a rigid material such as metal, ceramics, hard resin, or reinforced resin such as FRP. However, the upper collar 211 is not limited to these materials like the above-described upper collars 11, 111, and 211. The shape is preferably a square or a circle, but is not limited to these shapes.

As a means for fixing the upper collar 211 to the upper structure 201, for example, the upper collar 211 may be directly secured to the upper structure by using fastening means such as bolts and nuts. The upper plate 211 is indirectly fixed to the upper structure 201 using an upper plate 203 having a plate shape with a larger area. The method for fixing the upper rod 211 to the upper structure 201 is not limited to these examples.

When used as a movable support device, a sliding member 204 is disposed above the upper rod 211, for example, between the upper rod 211 and the upper plate 203, so that the upper structure 201 and the support device 210 are relative to each other. You may fix so that displacement is possible. As the sliding member 204, for example, a plate having a low coefficient of friction surface such as polytetrafluoroethylene (PTFE) which is a kind of fluorocarbon resin is fixed to the upper surface of the upper collar 211, or It can be configured by being fixed to the upper structure 201 or the lower surface on the attachment means side fixed to the upper structure 201.

The lower arm 212, like the upper arm 211, is made of a rigid material such as metal, ceramics, or a hard resin or a reinforced resin such as FRP. However, the lower rod 212 is not limited to these materials, like the upper rods 12, 112, and 212 described below. The shape is preferably a square or a circle, but is not limited to these shapes. However, the planar shape and the like of the lower eyelid 212 do not necessarily match the upper eyelid 211, but the size of each part, the shape and position of the convex portion and the recessed portion, etc. are set by the lower eyelid 212 and the upper eyelid 211. Must be aligned with each other.

As a means for fixing the lower rod 212 to the lower structure 202, the lower rod 212 may be directly fixed to the lower structure 202 by using fastening means such as bolts and nuts, for example. A lower plate 212 is indirectly fixed to the lower structure 202 using a lower plate 205 having a plate shape larger than 212. The method of fixing the lower collar 212 to the lower structure 202 is not limited to these examples.

When used as a movable bearing device, a sliding member 206 is disposed below the lower rod 212, for example, between the lower plate 205 and the lower rod 212, so that the lower structure 202 and the bearing device 210 are relative to each other. You may fix so that displacement is possible. As the sliding member 206, for example, a plate having a low coefficient of friction surface such as PTFE is fixed to the lower surface of the lower collar 212, or is attached to the lower structure 202 or the lower structure 202. It is possible to fix to the upper surface on the means side.

The direct or indirect fixing of the upper rod 211 or the lower rod 212 is preferably a detachable method, and fastening with bolts, nuts, etc. is an example.

[2. Explanation of elastic body and elastic deformation restraint body]
The elastic body 213 used here is, for example, an elastic body having a laminated structure in which an elastic layer 213a and a reinforcing plate 213b are laminated, similarly to the elastic body described above. The elastic body 213 includes a reinforcing plate 213b, a plurality of elastic layers 213a, and the reinforcing plate 213b and the elastic layer 213a are bonded to each other by vulcanization bonding. The upper and lower surfaces of the elastic body 213 are reinforced by vulcanizing and bonding the upper plate 213c and the lower plate 213d.

Here, the elastic layer 213a is formed using natural rubber, synthetic rubber, thermoplastic elastomer or thermosetting elastomer. In addition, about a material, since it is the same as that of the elastic body of 1st and 2nd embodiment, it abbreviate | omits for details. Also, the elastic body 213 used here may be one elastic layer (single layer) or a laminated type with a reinforcing plate 217a interposed. The reinforcing plate 213b, the upper plate 213c, and the lower plate 213d are made of a rigid steel material such as an iron plate. In the laminated elastic body 213 as described above, when a load is applied, the side surface of the elastic layer 213a between the reinforcing plates 213b that are free side surfaces bulge slightly to the side according to the magnitude of the load. It has the characteristic to do. A convex portion 214 and a concave portion 215 are provided around the elastic body 213 in the circumferential direction.

The elastic body 213 as described above is disposed and supported by the large-diameter portion 222 of the core member 221 fixed to the lower collar 212. The elastic body 213 may be provided with a high bearing pressure by adhering between the upper collar 211 and the lower collar 212. However, by not adhering, the elastic body 213 can also achieve good rotation follow-up performance.

In the above example, the case where the elastic body 213 is a laminated type has been described. However, the elastic body 213 according to the present invention is provided with a rigid reinforcing plate such as an iron plate inside while providing the convex portion 214 and the concave portion 215. The elastic layer which is not provided may be one (single layer). The size of the elastic body 213 may be a size that fits the elastic deformation restraining body 216 when inserted into the elastic deformation restraining body 216. A gap may be provided between the elastic member 213 and the side surface of the elastic body 213. In the following description, a laminated elastic body having convex portions 214 and concave portions 215 will be described as an example.

The elastic body 213 configured as described above is surrounded by an elastic deformation restraining body 216 as shown in FIG. The elastic deformation restraining body 216 is a cylindrical body having an inner diameter slightly larger than the outer diameter of the elastic body 213, and is fixed to either the upper collar 211 or the lower collar 212, or the outer periphery of the upper collar 211 in FIG. For example, the upper collar 211 and the elastic deformation restraining body 216 are coupled by a fixing bolt 217 that is a fastening member constituting the fixing portion. The elastic deformation restraining body 216 has a vertical displacement direction, that is, an upper side. It is fixed from. Specifically, a bolt recess 217a is provided in the thickness direction on the outer peripheral portion of the upper surface of the upper collar 211, and a through hole 217b is formed at the bottom thereof, and a bolt seat 217c is formed around the through hole 217b. Is formed. Further, a screw hole 217d corresponding to the through hole 217b is provided on the upper end surface of the elastic deformation restraining body 216. That is, the bolt shaft portion 217e is screwed in parallel with the core member 221 (in the direction of vertical displacement). Here, the thickness T of the bolt seat portion 217c is formed to be smaller than the screwing depth D of the screw hole 217d (T <D). Thereby, the strength of the bolt seat portion 217c is weaker than the strength of the screwed portion at the screw hole 217d. That is, when the lifting force is applied, the bolt seat 217c of the fixing bolt 217 is damaged before the screw groove of the screw hole 217d and the screw groove of the bolt shaft portion 217e are damaged. Further, when a horizontal force is applied, the bolt shaft portion 217e is broken before other members are damaged. The bolt head 217f of the fixing bolt 217 is accommodated without protruding from the bolt recess 217a so as not to hit the upper structure 201 or the upper plate 203.

In this example, if the strength of the bolt seat portion 217c is weaker than the strength of the screwed portion at the screw hole 217d, (thickness T of the bolt seat portion 217c)> (screwing depth D of the screw hole 217d). It may be a relationship. Such a relationship can be realized by adjusting the materials and materials of the upper collar 211 and the elastic deformation restraining body 216.

Furthermore, a core material 221 is fixed to the lower rod 212, and serves as a lifting prevention portion and a horizontal displacement prevention portion. Specifically, the lower end portion of the core material 221 is fixed to the lower collar 212 serving as a base plate. The core member 221 is made of a metallic bolt-shaped member having a head that becomes the large-diameter portion 222, and the large-diameter portion 222 that is the tip portion is disposed in the elastic deformation restraining body 216, so that the elastic body 213 is substantially sealed. It functions like a piston that is constrained by the state and increases the bearing pressure. The core member 221 is fixed by being screwed into the screw hole 223 of the lower collar 212. The structure for fixing the core member 221 to the lower collar 212 is not limited to this. For example, a fixing bolt inserted from the lower surface of the lower collar 212 is screwed into the screw hole of the core member 221 and fixed. You may make it do. In addition, the bonding strength between the core material 221 and the lower rod 212 is higher than the bonding strength between the upper rod 211 and the elastic deformation restraining body 216 described above, and when a high load exceeding the normal usage range is applied. In addition, the part is prevented from being damaged before the fixing bolt 217. The large-diameter portion 222 may also be fixed by, for example, screwing a screw portion provided at the tip of the core member 221 into a screw hole of the large-diameter portion of another member.

The large-diameter portion 222 integrated with the core member 221 engages with the rising prevention piece 225 of the elastic deformation restraining body 216 whose outer peripheral lower surface is fixed to the outer peripheral portion of the upper rod 211 by a fixing member 224 such as a screw. The fixing member 224 is also configured such that the bolt head is contained in the bolt recess 224a of the lower rod 212 and does not protrude toward the lower rod 212 side. The large diameter portion 222 of the core member 221 integral with the lower rod 212 serves as a lifting prevention portion, and when an upper lifting force is applied to the upper flange 211, the upper lifting prevention piece 225 on the upper collar 211 side is locked. This prevents the upper collar 211 and the lower collar 212 from separating. That is, the large-diameter portion 222 of the core material 221 is disposed in the elastic deformation restraining body 216, thereby allowing the elastic body 213 to be displaced in the vertical direction, and serving as a horizontal displacement prevention portion. The horizontal displacement is restricted at 221. Thereby, it is possible to prevent the upper collar 211 and the lower collar 212 from being relatively displaced in the horizontal direction. Further, a gap C1 is provided between the lifting prevention piece 225 and the lower rod 212, and the upward lifting prevention piece 225 is also moved when the upper rod 211 moves to the lower rod 212 side by being displaced vertically downward. It does not hit the lower arm 212. The lifting prevention piece 225 may be fixed to the elastic deformation restraining body 216 by welding or the like. Further, the coupling strength between the elastic deformation restraining body 216 and the lifting prevention piece 225 by the fixing member 224 is higher than the above-described coupling force between the upper collar 211 and the elastic deformation restraining body 216, and exceeds the normal use range where it is damaged. Even when a high load is applied, the portion is prevented from being damaged before the fixing bolt 217.

That is, the support device 210 is provided with the large-diameter portion 222 that supports the elastic body 213 of the core member 221 on the lower collar 212 side of the elastic deformation restraining body 216 on the upper collar 211 side. A function of suppressing the shear deformation of the elastic body 213 disposed between the collar 211 and the lower collar 212 and a role of a piston for restraining the elastic body 213 in a substantially sealed state and increasing the bearing pressure are realized. Thus, the elastic body 213 supported by the lower rod 212 is surrounded by the upper rod 211 on the upper surface and the elastic deformation restraining body 216 on the side surface, and is disposed in a semi-sealed space. The bearing device 210 is a semi-sealed rubber bearing, and can support a high load with a small bearing area.

Describing the assembling method of the support device 210, the core material 221 is inserted into the elastic deformation restraining body 216, and the core material 221 is fixed to the screw hole 223 of the lower rod 212. Thereby, a pot portion for accommodating the elastic body 213 is formed in the elastic deformation restraining body 216 by the large diameter portion 222. Thereafter, the elastic body 213 is disposed on the large-diameter portion 222 of the core member 221 in the pot portion. Thereafter, the upper collar 211 is coupled to the elastic deformation restraining body 216 by a fixing bolt 217. Of course, the method of assembling the support device 210 is not limited to the above example. The space between the elastic body 213 and the elastic deformation restraining body 216 is filled with a lubricant 218 so that the elastic body 213 can be smoothly vertically displaced in the elastic deformation restraining body 216 with low friction. In addition, in order to reduce the frictional force, the constraining surface 216a of the elastic deformation restraining body 216 is mirror-finished to make it low friction, or in combination with a lubricant, there is an input exceeding a predetermined value, The elastic deformation restraining body 216 may be configured to easily move in the vertical direction with respect to the elastic body 213 when the fixing portion fixing the elastic deformation restraining body 216 is damaged.

Here, the size relationship between the elastic body 13 and the elastic deformation restraining body 16 will be described. In the example of FIG. 31, the support device 10 is installed between the upper structure 1 and the lower structure 2. In a state where the elastic body 213 is deformed by the load of the upper structure 201 with respect to 210 (for example, when a dead load is applied), the convex portion 214 on the side surface of the elastic body 213 is the inner peripheral surface of the elastic deformation restraining body 216. It is in the state which contact | abutted to the restraining surface 216a. That is, before being installed between the upper structure 201 and the lower structure 202, the convex portion 214 on the side surface of the elastic body 213 is not in contact with the restraining surface 216a on the inner peripheral surface of the elastic deformation restraining body 216. In this state, a gap is provided, and when it is installed between the upper structure 201 and the lower structure 202, a convex portion on the side surface of the elastic body 213 is caused by a dead load of the upper structure 201. 214 is in contact with the restraining surface 216 a on the inner peripheral surface of the elastic deformation restraining body 216. When a dead load is loaded, the convex portion 214 on the side surface of the elastic body 213 is not in contact with the restraining surface 216a on the inner peripheral surface of the elastic deformation restraining body 216, and a high load exceeding the normal use range (for example, a large vehicle or the like) When there is a live load due to traffic load, the convex portion 214 on the side surface of the elastic body 213 comes into contact with the restraining surface 216a on the inner peripheral surface of the elastic deformation restraining body 216, and the restraining surface 216a is brought into contact with the input of a further high load. The protruding portion 214 and the bulged and deformed portion of the recessed portion 215 may be pressed.

[3. Explanation of operation of bearing device]
In the above-described support device 210, when installed between the upper structure 201 and the lower structure 202, as shown in FIG. 31, the elastic body 213 has a load in a normal use range (for example, dead load or (Dead load + live load during vehicle passage), and the convex portion 214 of the elastic body 213 is positioned close to or in contact with the restraining surface 216a of the elastic deformation restraining body 216 surrounding the elastic body 213. In the support device 210, the elastic body 213 is elastically deformed in accordance with the magnitude of the vertical load, and the elastic deformation is restrained while the convex portion 214 on the side surface is deformed so as to fill the gap formed by the concave portion 215. The body 216 is pressed against the restraining surface 216a of the body 216. That is, the displacement amount of the elastic body 213 is restricted and restricted by the elastic deformation restraining body 216.

Further, the relationship between the convex portions 214 and the concave portions 215 of the elastic body 213 and the restraining surface 216a of the elastic deformation restraining body 216 will be described. The laminated elastic body 213 has the convex portions 214 at the position of the elastic layer 213a on the free side surface. The concave portion 215 is provided at the position of the reinforcing plate 213b. In this case, the convex portion 214 is strongly pressed against the restraining surface 216a of the elastic deformation restraining body 216 before the concave portion 215 due to the free side surface of the elastic layer 213a bulging when a load is applied. The laminated elastic body 213 is provided with a convex portion 214 on the elastic layer 213a at the position between the reinforcing plates with the largest amount of bulging in the past, and the bulging around the convex portion 214 by the restraining surface 216a of the elastic deformation restraining body 216. Since the protruding amount is constrained, local stress on the elastic layer 213a around the internal reinforcing plate 213b is relieved even when a high load is input. Further, the internal reinforcing plate 213b is not easily crushed by a high load, and the reinforcing plate 213b can be made thin, and the entire thickness of the support device 210 can be reduced. The position of the reinforcing plate 213b may be the convex portion 214, and the position of the elastic layer 213a may be the concave portion 215. In this case, since the free side surface of the elastic layer 213a, which is a concave portion, slightly bulges, the convex portion 214 and the concave portion 215 are similarly brought into contact with the restraining surface 216a of the elastic deformation restraining body 216 and are evenly distributed. It can be pressed.

The support device 210 is provided with a large-diameter portion 222 that supports the elastic body 213 of the core member 221 on the lower collar 212 side of the elastic deformation restraining body 216 on the upper collar 211 side. The lower collar 212 has a function of suppressing the shear deformation of the elastic body 213 disposed between the upper collar 211 and the lower collar 212, and a role of a piston that restrains the elastic body 213 in a substantially sealed state to increase the bearing pressure. Realize. Thus, the elastic body 213 supported by the lower collar 212 is surrounded by the upper collar 211 and the side surface by the elastic deformation restraining body 216 and disposed in a semi-sealed space, and becomes a semi-sealed rubber bearing. It is possible to support a high load with a small bearing area.

Further, when the rotational force in the vertical plane is applied from the low load to the high load, the elastic body 213 is partially supported by the elastic deformation restraining body 216, but the elastic body is formed by the gap between the convex portion 214 or the concave portion 215. 213 is deformed, and good rotation followability can be realized without an extreme load on the elastic body.

Next, the case where a high load (for example, live load at the time of occurrence of a large earthquake) exceeding the normal use range in which the support device 210 is damaged will be described. FIG. 32 is a cross-sectional view showing the state of the support device when a large lifting force that is damaged is applied. As shown in FIG. 31, the coupling strength between the core member 221 and the lower collar 212 is higher than the coupling force between the upper collar 211 and the elastic deformation restraining body 216 described above, and the elastic deformation restraining body by the fixing member 224. The coupling strength between 216 and the lifting prevention piece 225 is higher than the coupling strength between the upper collar 211 and the elastic deformation restraining body 216 described above. The thickness T of the bolt seat portion 217c is formed to be smaller than the screwing depth D of the screw hole 217d (T <D, see FIG. 31). Thereby, the strength of the bolt seat portion 217c is weaker than the strength of the screwed portion at the screw hole 217d. For this reason, when a lifting force exceeding the normal use range that causes damage to the support device 210 is applied to the support device 210, the bolt before the screw groove of the screw hole 217d or the screw groove of the bolt shaft portion 217e is damaged. The seat portion 217c is damaged. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. Thereby, before breakage, the gap C1 between the lifting prevention piece 225 and the lower rod 212 becomes narrower or disappears due to the drop of the elastic deformation restraining body 216, and instead, the upper collar 211 and the elastic deformation restraining body. A gap C <b> 2 is generated between the terminal 216 and 216. Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Whether or not there is a gap is visually confirmed, and when there is a gap C2 on the upper flange 211 side, it can be determined that the support device 210 is broken. Further, even if the elastic deformation restraining body 216 falls on the lower rod 212, the elastic body 213 supported by the core member 221 can continue to support the upper rod 211.

FIG. 33 is a cross-sectional view showing the state of the bearing device when a large horizontal force is applied which causes damage. When a horizontal force is applied to the upper rod 211, the bolt shaft portion 217e is broken by horizontal shear before other members are damaged. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage becomes narrower or disappears due to the drop of the elastic deformation restraining body 216, and instead, the upper collar 211 and the elastic deformation restraining body 216. A gap C2 is generated between the two. Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Whether or not there is a gap is visually confirmed, and when there is a gap C2 on the upper flange 211 side, it can be determined that the support device 210 is broken. Further, even if the elastic deformation restraining body 216 falls on the lower rod 212, the elastic body 213 supported by the core member 221 can continue to support the upper rod 211.

As described above, in the support device 210, the position of the elastic deformation restraint 216, that is, the gap is between the elastic deformation restraint 216 and the lower collar 212, or between the elastic deformation restraint 216 and the upper collar 211. It can be confirmed whether it is damaged by checking how much gap there is. Furthermore, when the bolt head 217f of the fixing bolt 217 is exposed on the end face of the elastic deformation restraining body 16, as shown in FIG. 32, the support device 210 is damaged by excessive lifting force. Further, as shown in FIG. 33, when the bolt shaft portion 217e of the fixing bolt 217 is horizontally sheared, it can be determined that the support device 210 is damaged by an excessive horizontal force. I can do it. Even if the elastic deformation restraining body 216 is dropped on the lower rod 212 due to damage due to excessive lifting force or horizontal force, the core member 221 remains between the elastic body 213 and the upper body until it is replaced with a new support device. It is possible to continue to support the superstructure 201 with the eaves 211.

[4. Description of Modification 1 of Bearing Device]
In the bearing device 230 shown in FIG. 34, the upper collar 211 and the elastic deformation restraining body 216 are fixed by a fixing bolt 217 as a fixing member, like the bearing device 210 in FIGS. 31, 32 and 33. Here, the thickness T of the bolt seat portion 217c is formed to be larger than the screwing depth D of the screw hole 217d (T> D). Thereby, the strength of the bolt seat portion 217c is higher than the strength of the screwed portion at the screw hole 217d. That is, when the lifting force is applied, the fixing bolt 217 is configured such that the screw groove of the screw hole 217d and the screw groove of the bolt shaft portion 217e are damaged before the bolt seat portion 217c is damaged. Further, when a horizontal force is applied, the bolt shaft portion 217e is damaged before the other members are damaged.

In this example, if the strength of the bolt seat portion 217c is stronger than the screw joint strength at the screw hole 217d, (thickness T of the bolt seat portion 217c) <(screw depth D of the screw hole 217d). It may be a relationship. Such a relationship can be realized by adjusting the materials and materials of the upper collar 211 and the elastic deformation restraining body 216.

As described above, a case will be described in which a high load (for example, a live load in the event of a large earthquake) exceeding the normal use range that causes damage to the support device 230 is applied. FIG. 35 is a cross-sectional view showing a state of the bearing device when a large lifting force that is damaged is applied. As shown in FIG. 34, the thickness T of the bolt seat 217c is formed to be larger than the screwing depth D of the screw hole 217d (T> D). Thereby, the strength of the bolt seat portion 217c is higher than the strength of the screwed portion at the screw hole 217d. For this reason, when a lifting force exceeding the normal usage range is applied such that the bearing device 210 is damaged, the fixing bolt 217 has the screw groove of the screw hole 217d and the bolt shaft portion 217e before the bolt seat portion 217c is damaged. The screw groove is damaged and pulled out from the screw hole 217d. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. Thereby, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage becomes narrower or disappears due to the drop of the elastic deformation restraining body 216. Instead, the upper collar 211 and the elastic deformation restraining body 216 A gap C2 is generated between the two. Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Whether or not there is a gap is visually confirmed, and when there is a gap C2 on the upper flange 211 side, it can be determined that the support device 210 is broken.

FIG. 36 is a cross-sectional view showing the state of the bearing device when a large horizontal force is applied which causes damage. When a horizontal force is applied to the upper rod 211, the bolt shaft portion 217e is broken by horizontal shear before other members are damaged. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. Thereby, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage becomes narrower or disappears due to the drop of the elastic deformation restraining body 216. Instead, the upper collar 211 and the elastic deformation restraining body 216 A gap C2 is generated between the two. Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Whether or not there is a gap is visually confirmed, and when there is a gap C2 on the upper flange 211 side, it can be determined that the support device 210 is broken.

As described above, in the bearing device 230, the position of the elastic deformation restraint 216, that is, the gap is between the elastic deformation restraint 216 and the lower collar 212, or between the elastic deformation restraint 216 and the upper collar 211. It is possible to confirm whether or not it is broken by checking whether there is a gap or how much gap there is. Furthermore, when the fixing bolt 217 remains in the bolt recess 217a of the upper rod 211 and the tip end portion of the bolt shaft portion 217e is exposed as shown in FIG. 35, the bearing device 210 is excessively lifted. It can be determined that is damaged. As shown in FIG. 36, when the bolt shaft portion 217e of the fixing bolt 217 is horizontally sheared, it can be determined that the support device 210 is damaged due to excessive horizontal force. And even if this support device 230 is damaged by an excessive lifting force or horizontal force and the elastic deformation restraining body 216 falls to the lower rod 212, the core member 221 has the elastic body 213 and the upper rod 211 therebetween. Thus, the upper structure 201 can be supported. Even if the elastic deformation restraining body 216 is dropped on the lower rod 212 due to damage due to excessive lifting force or horizontal force, the core member 221 remains between the elastic body 213 and the upper body until it is replaced with a new support device. It is possible to continue to support the superstructure 201 with the eaves 211.

[5. Description of Modification 2 of Bearing Device]
37, the upper collar 211 and the elastic deformation restraining body 216 are fixed by a fixing bolt 217 as a fixing portion, like the bearing device 210 of FIGS. 31, 32 and 33. Further, here, a protrusion 241 that substantially fits the inner peripheral portion of the elastic deformation restraining body 216 is provided on the surface of the upper collar 211 that faces the elastic body 213. In this example, the protruding portion 241 is provided integrally with the upper flange 211, but a plate member may be fixed to the upper flange 211 using a fixing bolt or the like. The thickness D of the protruding portion 241 is formed to be larger than the height d of the gap C1 between the lifting prevention piece 225 and the lower rod 212 (d <D). The fixing bolt 217 that connects the upper collar 211 and the elastic deformation restraining body 216 may follow the examples of FIGS. 31, 32, and 33, but here, similarly to the modified example 1 of FIGS. 34 to 36. It has become.

Such a support device 240 is extremely strong against the horizontal force because the protruding portion 241 is fitted to the elastic deformation restraining body 216. As shown in FIG. 38, when a high lifting force exceeding the normal use range that causes damage to the support device 240 is applied, the fixing bolt 217 is threaded in the screw hole 217 d before the bolt seat 217 c is damaged. In addition, the screw groove of the bolt shaft portion 217e is damaged and pulled out from the screw hole 217d. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage disappears when the elastic deformation restraining body 216 falls on the lower rod 212 (d = 0). A gap C2 is generated between the elastic deformation restraining body 216 and δ (= d). Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Check visually if there is a gap. When the gap C2 is present on the upper rod 211 side, it can be determined that the support device 240 is damaged. Further, the thickness D of the protrusion 241 is larger than the height d of the gap C1 between the lifting prevention piece 225 and the lower rod 212 (δ = d <D). Therefore, even if the elastic deformation restraining body 216 falls on the lower collar 212, the protruding portion 241 does not come off from the elastic deformation restraining body 216, and the elastic body 213 can be maintained in a semi-sealed state. That is, the support device 210 can maintain substantially the same support ability as before the breakage even after the breakage.

When a very large horizontal force is applied, the bolt shaft portion 217e is broken by horizontal shearing, and the elastic deformation restraining body 216 is dropped from the upper collar 211 side onto the lower collar 212, and the elastic deformation restraining body. At the position 216, it is possible to confirm and determine whether or not the support device 240 is damaged, and it is possible to determine that the damage has been damaged by a horizontal force.

[6. Description of Modification 3 of Bearing Device]
39, the upper collar 11 and the elastic deformation restraining body 216 are fixed by a fixing bolt 217 as a fixing member, like the bearing device 210 of FIGS. 31, 32 and 33. Further, here, a cover plate 251 is disposed on the elastic body 213 in the elastic deformation restraining body 216. Note that the cover plate 251 is not bonded to the facing surface of the upper collar 211, so that the upper collar 211 can slide. The thickness D of the cover plate 251 is formed to be larger than the height d of the gap C1 between the lifting prevention piece 225 and the lower rod 212 (d <D). The fixing bolt 217 for connecting the upper collar 211 and the elastic deformation restraining body 216 may follow the examples shown in FIGS. 31, 32 and 33, but here, similarly to the first modification shown in FIGS. It has become.

As described above, a case where a high load (for example, a live load at the occurrence of a large earthquake) exceeding the normal use range that causes damage to the support device 250 will be described. As shown in FIG. 40, when a high lifting force exceeding the normal use range that causes damage to the support device 250 is applied, the fixing bolt 217 is threaded in the screw hole 217 d before the bolt seat portion 217 c is damaged. Otherwise, the screw groove of the bolt shaft portion 217e is damaged and pulled out from the screw hole 217d. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage disappears when the elastic deformation restraining body 216 falls on the lower rod 212 (d = 0). A gap C2 is generated between the elastic deformation restraining body 216 and δ (= d). Accordingly, the operator determines whether the gaps C1 and C2 are between the elastic deformation restraining body 216 and the lower rod 212 or between the elastic deformation restraining body 216 and the upper rod 211, and to what extent there is a gap. It is possible to determine whether or not the bearing device 250 is damaged when there is a gap C2 on the upper collar 211 side.

In addition, as shown in FIG. 41, when a large horizontal force is applied, the upper collar 211 is displaced so as to slide in the horizontal direction with respect to the cover plate 251 before other members are damaged. The bolt shaft portion 217e is broken by horizontal shear. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage disappears when the elastic deformation restraining body 216 falls on the lower rod 212 (d = 0). A gap C2 is generated between the elastic deformation restraining body 216 and δ (= d). Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Check visually if there is a gap. When the gap C2 is present on the upper collar 211 side, it can be determined that the support device 250 is damaged.

As described above, in the support device 250, the position of the elastic deformation restraint 216, that is, the gap is between the elastic deformation restraint 216 and the lower collar 212, or between the elastic deformation restraint 216 and the upper collar 211. It is possible to confirm whether or not it is broken by checking whether there is a gap or how much gap there is. Further, when the fixing bolt 217 remains in the bolt recess 217a of the upper rod 211 and the tip end portion of the bolt shaft portion 217e is exposed as shown in FIG. Further, as shown in FIG. 41, when the bolt shaft portion 217e of the fixing bolt 217 is sheared horizontally, the support device 250 is damaged by an excessive horizontal force. Can be determined. The thickness D of the lid plate 251 is larger than the height d of the gap C1 between the lifting prevention piece 225 and the lower rod 212 (δ = d <D). Therefore, the cover plate 251 can maintain the semi-sealed state of the elastic body 213 without being detached from the elastic deformation restraining body 216 even if the elastic deformation restraining body 216 falls on the lower collar 212. That is, the bearing device 250 can maintain substantially the same bearing ability as before the breakage even after the breakage.

[7. Description of Modification 4 of Bearing Device]
Similarly to the bearing device 210 of FIGS. 31, 32, and 33, the bearing device 260 shown in FIG. 42 is also fixed to the upper collar 211 and the elastic deformation restraining body 216 by a fixing bolt 217 as a fixing portion. Further, here, a cover plate 261 is disposed on the elastic body 213 in the elastic deformation restraining body 216. The cover plate 261 is not bonded to the facing surface of the upper collar 211, and the upper collar 211 can slide. A horizontal displacement limiting recess 262 into which a part of the cover plate 261 is inserted is provided on the surface of the upper collar 211 that faces the cover plate 261. The horizontal displacement limiting recess 262 is formed larger than the cover plate 261 so that a gap is provided on both sides of the cover plate 261. The horizontal displacement limiting recess 262 limits the horizontal displacement by allowing the cover plate 261 to move within the range of the horizontal displacement limiting recess 262 and hitting the side surface when a horizontal force is input.

In the example of FIG. 42, by making the thickness of the cover plate 261 the same as the depth of the horizontal displacement limiting recess 262 and adding the cover plate 261, the entire support device 260 becomes thicker or the thinning is prioritized to give priority to elasticity. The body 213 is prevented from becoming thin. However, the cover plate 261 may be made thicker than the depth of the horizontal displacement limiting recess 262 as shown in FIG. Specifically, the thickness T of the cover plate 251 is thicker than the sum of the height δ of the gap C1 between the lifting prevention piece 225 and the lower rod 212 and the depth d of the horizontal displacement limiting recess 262. (D + δ <T). The fixing bolt 217 for connecting the upper collar 211 and the elastic deformation restraining body 216 may follow the examples of FIGS. 31, 32 and 33, but here, as in the first modification of FIGS. 34 to 36. It has become.

As shown in FIG. 44, when a high lifting force exceeding the normal use range that causes damage to the support device 260 is applied, the fixing bolt 217 is threaded in the screw hole 217d before the bolt seat 217c is damaged. Otherwise, the screw groove of the bolt shaft portion 217e is damaged and pulled out from the screw hole 217d. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage disappears when the elastic deformation restraining body 216 falls on the lower rod 212 (δ = 0), or approaches δ = 0. Instead, a gap C <b> 2 is generated between the upper collar 211 and the elastic deformation restraining body 216 by δ. Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Whether or not there is a gap is visually confirmed, and when there is a gap C2 on the upper flange 211 side, it can be determined that the support device 260 is broken.

In addition, as shown in FIG. 45, when a large horizontal force is applied to cause damage, the cover plate 261 and the upper collar 211 are moved in the horizontal direction until the cover plate 261 hits the side in the horizontal displacement limiting recess 262. The bolt shaft portion 217e is damaged by horizontal shearing before it is displaced so that other members are damaged. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage disappears when the elastic deformation restraining body 216 falls on the lower rod 212 (δ = 0). A gap C2 is generated between the elastic deformation restraining body 216 and δ. Accordingly, the operator determines whether the gaps C1 and C2 are between the elastic deformation restraining body 216 and the lower rod 212 or between the elastic deformation restraining body 216 and the upper rod 211, and to what extent there is a gap. It is possible to determine that the bearing device 260 is damaged when there is a gap C2 on the upper collar 211 side.

As described above, in the support device 260, the position of the elastic deformation restraint 216, that is, the gap is between the elastic deformation restraint 216 and the lower collar 212, or between the elastic deformation restraint 216 and the upper collar 211. It is possible to confirm whether or not it is broken by checking whether there is a gap or how much gap there is. Further, when the fixing bolt 217 remains in the bolt recess 217a of the upper rod 211 and the tip end portion of the bolt shaft portion 217e is exposed as shown in FIG. 44, as shown in FIG. Can be determined to be damaged. Further, as shown in FIG. 45, when the bolt shaft portion 217e of the fixing bolt 217 is horizontally sheared, it can be determined that the support device 260 is damaged due to excessive horizontal force. Further, the thickness T of the lid plate 261 is formed to be thicker than the sum of the height δ of the gap C1 between the lifting prevention piece 225 and the lower rod 212 and the depth d of the horizontal displacement limiting recess 262. (D + δ <T). Therefore, even if the elastic deformation restraining body 216 falls toward the lower eyelid 212, the lid plate 261 does not come off from the elastic deformation restraining body 216, and can maintain the semi-sealed state of the elastic body 213. Further, since the cover plate 261 is engaged with the horizontal displacement limiting recess 262, the upper collar 211 does not come off due to the horizontal displacement. Therefore, the support device 260 can maintain substantially the same support ability as before the breakage even after the breakage.

[8. Description of Modification 5 of Bearing Device]
Similarly to the bearing device 210 of FIGS. 31, 32 and 33, the bearing device 270 shown in FIG. 46 also has the upper collar 211 and the elastic deformation restraining body 216 fixed by fixing bolts 217 which are fixing members. Further, here, a horizontal displacement limiting recess 271 into which a part of the upper side of the elastic body 213 and the elastic deformation restraining body 216 is inserted is provided on the surface of the upper collar 211 facing the elastic body 213 and the elastic deformation restraining body 216. ing. The horizontal displacement limiting recess 271 is formed larger than the outer shape of the elastic deformation restraining body 216 so that a gap is provided on both sides of the lid plate 261. The horizontal displacement limiting recess 271 limits the horizontal displacement by allowing the elastic deformation restraining body 216 to move within the range of the horizontal displacement limiting recess 271 and hitting the side surface when a horizontal force is input.

In this support device 270, a protrusion 272 serving as an outer peripheral wall of the horizontal displacement limiting recess 271 is provided on the outer periphery of the upper collar 211. The height D of the protruding portion 272 is formed higher than the height δ of the gap C1 between the lifting prevention piece 225 and the lower rod 212 (d <D). The fixing bolt 217 for connecting the upper collar 211 and the elastic deformation restraining body 216 may follow the examples of FIGS. 31, 32 and 33, but here, as in the first modification of FIGS. 34 to 36. It has become.

As shown in FIG. 47, when a high lifting force exceeding the normal usage range is applied such that the bearing device 270 is damaged, the fixing bolt 217 is screwed into the screw groove 217d before the bolt seat 217c is damaged. Otherwise, the screw groove of the bolt shaft portion 217e is damaged and pulled out from the screw hole 217d. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage disappears when the elastic deformation restraining body 216 falls on the lower rod 212 (d = 0). A gap C2 is generated between the elastic deformation restraining body 216 and δ. Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Whether or not there is a gap is visually confirmed, and when there is a gap C2 on the upper flange 211 side, it can be determined that the support device 270 is broken.

In addition, as shown in FIG. 48, when a large horizontal force is applied to cause damage, the elastic deformation restraining body 216 and the upper collar 211 come into contact with the side surface of the elastic deformation restraining body 216 in the horizontal displacement limiting recess 271. The bolt shaft portion 217e is damaged by horizontal shear before the other members are damaged. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, the gap C1 between the lifting prevention piece 225 and the lower rod 212 before breakage disappears when the elastic deformation restraining body 216 falls on the lower rod 212 (d = 0). A gap C2 is generated between the elastic deformation restraining body 216 and δ. Accordingly, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraint 216 and the lower rod 212, between the elastic deformation restraint 216 and the upper rod 211, or in what extent. Whether or not there is a gap is visually confirmed, and when there is a gap C2 on the upper flange 211 side, it can be determined that the support device 270 is broken.

As described above, in the bearing device 270, the position of the elastic deformation restraint 216, that is, the gap is between the elastic deformation restraint 216 and the lower collar 212, or between the elastic deformation restraint 216 and the upper collar 211. It is possible to confirm whether or not it is broken by checking whether there is a gap or how much gap there is. In particular, in this support device 270, since the gap C2 on the upper collar 211 side is hidden by the protruding portion 272, the operator first determines whether there is any breakage based on the presence or absence of the gap C1 on the lower collar 212 side. Furthermore, when the fixing bolt 217 remains in the bolt recess 217a of the upper rod 211 and the tip end portion of the bolt shaft portion 217e is exposed as shown in FIG. 47, as shown in FIG. Can be determined to be damaged. Further, as shown in FIG. 48, when the bolt shaft portion 217e of the fixing bolt 217 is horizontally sheared, it can be determined that the support device 270 is damaged by an excessive horizontal force. In addition, a protrusion 272 serving as an outer peripheral wall of the horizontal displacement limiting recess 271 is provided on the outer periphery of the upper collar 211. The height D of the protruding portion 272 is formed higher than the height δ of the gap C1 between the lifting prevention piece 225 and the lower rod 212 (d <D). Therefore, even if the elastic deformation restraining body 216 falls on the lower collar 212, it does not come off from the horizontal displacement limiting recess 271 of the upper collar 211, and the semi-sealed state of the elastic body 213 can be maintained. In addition, since the elastic deformation restraining body 216 is engaged with the horizontal displacement limiting recess 271, the upper collar 211 does not come off due to the horizontal displacement. Therefore, the bearing device 270 can maintain substantially the same bearing ability as before the breakage even after the breakage.

Note that, here, the outer peripheral portion of the upper collar 211 is related to the projecting section 272 that becomes the outer peripheral wall of the horizontal displacement limiting recess 271, and the height D of the projecting section 272 is between the lifting prevention piece 225 and the lower collar 212. The height C of the gap C1 is set higher (d <D) so that the elastic deformation restraining body 216 does not come off from the horizontal displacement limiting recess 271 even if it is dropped on the lower collar 212. If the displacement can be limited, d = D or d> D, and the elastic deformation restraining body 216 may fall off the horizontal displacement limiting recess 271 when it falls on the lower rod 212.

[9. Description of Modification 6 of Bearing Device]
49 and 50, the upper collar 211 and the elastic deformation restraining body 216 are fixed in the same manner as the bearing device 10 shown in FIGS. 31, 32 and 33 and the bearing device 230 shown in FIGS. It is fixed by a fixing bolt 217 which is a part. When the lifting force exceeding the normal use range is applied, the bearing device 280 is damaged by the bolt seat portion 217c or the bolt shaft portion 217e being pulled out from the screw hole 217d, and the elastic deformation restraining body. 216 drops from the upper eyelid 211 side onto the lower eyelid 212. In addition, when an excessive horizontal force is applied, as shown in FIG. 50, the bolt shaft portion 217e is damaged by horizontal shearing, and the elastic deformation restraining body 216 falls onto the lower rod 212 from the upper rod 211 side. It is like that.

By the way, in this bearing device 280, for example, the upper collar 211 is colored blue as the first color, and the yellow color as the second color is formed on the outer surface of the lifting prevention piece 225, the elastic deformation restraining body 216, and the lifting prevention piece 225. The lower collar 212 is colored red as the third color. Then, during normal use, the elastic deformation restraining body 216 is fixed to the upper collar 211 by the fixing bolt 217, and a gap C1 is formed between the lifting prevention piece 225 and the lower collar 212. Therefore, in the support device 280 during normal use, it is possible to confirm a state where the blue color as the first color of the upper collar 211 and the yellow color as the second color of the elastic deformation restraining body 216 and the lifting prevention piece 225 are in contact. . When an upward lifting force exceeding the normal use range is applied, the bolt seat portion 217c is damaged or the bolt shaft portion 217e is pulled out from the screw hole 217d, and the elastic deformation restraining body 216 is moved on the lower rod 212 by gravity. Fall, approach and / or abut. Further, when a horizontal force exceeding the normal use range is applied, the bolt shaft portion 217e is damaged by horizontal shear (example in FIG. 50), and the elastic deformation restraining body 216 is dropped on the lower rod 212 by gravity, Approach and / or abut.

Then, before the breakage, the gap C1 between the lifting prevention piece 225 and the lower rod 212 becomes narrower or disappears due to the drop of the elastic deformation restraining body 216. A gap C2 is generated. Thereby, in the damaged support device 280, it is possible to confirm a state in which yellow as the second color of the elastic deformation restraining body 216 and the lifting prevention piece 225 is in contact with red as the third color of the lower eyelid 212. When confirming the damage status of the bearing device 280, the confirmer simply tells the remote person which color is in contact with which color, or which color is apart from which color. Whether the device 280 is damaged can be confirmed and transmitted to the remote person, for example, via communication means. That is, the confirmation work of the support device 280 can be easily performed without being an expert.

The upper collar 211, the elastic deformation restraining body 216, the lifting prevention piece 225, and the lower collar 212 may be a single color, for example, a rust-proof coating color, but are provided with a pattern such as a stripe or a design. Also good. Also, the first color and the second color can be set to the same color and only the third color can be set to a different color, or the second color and the third color can be set to the same color and only the first color can be set to a different color. . In addition, the elastic deformation restraining body 216 may be configured such that the upper collar 211 and the lower collar 212 are continuous, that is, the entire upper collar 211 and the lower collar 212 constitute one figure, pattern, picture, pattern, symbol, or the like. You may make it comprise the figure, pattern, picture, pattern, symbol, etc. which are discontinuous, ie, the ridge 212. In addition, in the bearing device 280 in which the upper collar 211, the lower collar 212, and the elastic deformation restraining body 216 are colored, for example, the scenery is improved in combination with the color of the bridge, the figure, the pattern, the picture, the pattern, the symbol, and the like. Further, by selecting a color, a figure, a pattern, a pattern, or the like that birds do not like, it is possible to prevent birds from approaching the vicinity of the lower structure 202 or the like. In such a case, the upper collar 211, the lower collar 212, and the elastic deformation restraining body 216 may be the same color. Furthermore, the example in which the upper collar 211, the lower collar 212, and the elastic deformation restraining body 216 are set in different colors can also be applied to a support device as shown in FIGS.

[10. Description of Modification 7 of Bearing Device]
In the examples of the supporting devices 210, 230, 240, 250, 260, 270, and 280 described above, the lubricant 218 is provided between the elastic body 213 and the restraining surface 216a of the elastic deformation restraining body 216, and the side surface is elastically deformed. When the elastic deformation restraining body 216 that is in contact with or in pressure contact with the elastic body 213 is broken, the elastic deformation restraining body 216 is dropped on the lower rod 212. FIG. 51 shows a modification of the sliding means that performs such a function. As shown, the elastic body 213 may be provided inside the cylindrical body 291. The cylindrical body 291 is formed so that the outer surface becomes a sliding surface. In this support device 290, a piston plate 292 that slides on the restraining surface 216 a of the elastic deformation restraining body 216 is further disposed on the large-diameter portion 222 of the core member 221, and the elastic body 213 is disposed on the piston plate 292. Is provided with a cylindrical body 291 housed therein. The height of the cylindrical body 291 is formed to be lower than the height of the elastic body 213 that is vertically displaced by a dead load, for example, so that the elastic body 213 is displaced in the vertical direction by a live load or the like. Thus, the elastic body 213 can support, for example, a live load with only a slight displacement in the vertical direction. The cylindrical body 291 is formed so that the outer peripheral surface in contact with the restraining surface 216a is a smooth surface, and is formed so that the friction with the restraining surface 216a is small. Therefore, when the lifting bolt or horizontal force exceeding the normal use range is applied and the fixing bolt 217 is damaged, the elastic deformation restraining body 216 falls smoothly on the lower rod 212 due to gravity. As a result, as described above, it is possible to confirm whether or not the support device 290 is damaged by confirming whether or not the elastic deformation restraining body 216 has dropped on the lower rod 212. Of course, a lubricant may be further provided between the cylindrical body 291 and the restraining surface 216a of the elastic deformation restraining body 216. The cylindrical body 291 is configured by forming a flat plate material, a perforated plate configured with a large number of holes, a concavo-convex plate configured with minute irregularities, a mesh material, etc. into a substantially cylindrical shape. You may do it.

Further, the cylindrical body 291 of the support device 290 may have a height extending from the elastic body 213 to the piston plate 292 as shown in FIG. The height of the cylindrical body 293 in which the elastic body 213 is accommodated is lower than the height of the elastic body 213 vertically displaced by, for example, a dead load so that the elastic body 213 is displaced in the vertical direction by a live load or the like. Is formed. Even with such a cylindrical body 293, when the fixing bolt 217 is damaged due to an upward lifting force or a horizontal force exceeding the normal use range, the elastic deformation restraining body 216 falls smoothly onto the lower rod 212 due to gravity. To do. Thereby, as described above, it is possible to confirm whether or not the support device 290 is damaged by confirming whether or not the elastic deformation restraining body 216 is dropped on the lower rod 212.

Note that the piston plate 292 may be provided even in the examples of the support devices 210, 230, 240, 250, 260, 270, and 280.

[11. Description of Modified Example 8 of Bearing Device]
53 and 54 is similar to the bearing device 210 shown in FIGS. 31, 32 and 33 and the bearing device 230 shown in FIGS. 34 to 36. It is fixed by a fixing bolt 217 which is a fixing part. When the lifting force exceeding the normal use range is applied, the bearing device 300 is damaged by the bolt seat portion 217c or the bolt shaft portion 217e is pulled out from the screw hole 217d, and the elastic deformation restraint body. 216 drops from the upper eyelid 211 side onto the lower eyelid 212. In addition, when an excessive horizontal force is applied, as shown in FIG. 54, the bolt shaft portion 217e is broken by horizontal shearing, and the elastic deformation restraining body 216 falls onto the lower rod 212 from the upper rod 211 side. It is like that.

Furthermore, in this support device 300, a watertight member 301 is provided to prevent moisture from entering the gap C1 between the lifting prevention piece 225 and the lower rod 212. Here, the watertight member 301 is, for example, a rubber packing, and is provided around the core member 221 so as to close the gap C <b> 1 between the lifting prevention piece 225 and the lower rod 212. Therefore, in this support device 300, it is possible to prevent moisture from entering from the gap C1 between the lifting prevention piece 225 and the lower rod 212 and generating rust or the like inside.

In the above-described support device 300, during normal use, the elastic deformation restraining body 216 is fixed to the upper rod 211 by the fixing bolt 217, and the gap C1 is interposed between the lifting prevention piece 225 and the lower rod 212. Is forming. However, the watertightness of the gap C <b> 1 is ensured by the watertight member 301. When an upward lifting force exceeding the normal use range is applied, the bolt seat portion 217c is damaged or the bolt shaft portion 217e is pulled out from the screw hole 217d, and the elastic deformation restraining body 216 is moved on the lower rod 212 by gravity. It falls by. Further, when a horizontal force exceeding the normal use range is applied, the bolt shaft portion 217e is broken by horizontal shear (example in FIG. 50), and the elastic deformation restraining body 216 is dropped on the lower rod 212 by gravity.

Then, before the breakage, the gap C1 between the lifting prevention piece 225 and the lower rod 212 is narrowed by dropping the elastic deformation restraining body 216, and instead, between the upper rod 211 and the elastic deformation restraining body 216. A gap C2 is generated. As a result, the operator can determine whether the gaps C1 and C2 are between the elastic deformation restraining body 216 and the lower rod 212, between the elastic deformation restraining body 216 and the upper rod 211, or to what extent. It is possible to determine that the bearing device 300 is damaged when there is a gap C2 on the upper collar 211 side. Further, in the support device 300, when the elastic deformation restraining body 216 is dropped onto the lower rod 212, the watertight member 301 is crushed as shown in FIG. Even when the support device 300 is broken, the elastic body 213 and the upper collar 211 are interposed between them to continue to support the upper structure 201. Even in such a broken state, the collapsed watertight member By 301, watertightness can be maintained. Although the watertight member 301 is not particularly limited, for example, by using a hollow rubber packing, the thickness when crushed can be reduced, whereby the upper collar 211 and the elastic deformation restraining body 216 are obtained. It is possible to prevent the gap C2 created between the two and the gap from becoming narrow, and it is possible to prevent the gap C2 from becoming narrow and making it difficult for the operator to determine the gap.

By the way, as shown in FIG. 55, the watertight member 301 is provided with a disposition recess 302 on the surface facing the lower collar 212 of the lifting prevention piece 225, and the watertight member 301 is disposed in this disposition recess 302. Also good. When the watertight member 301 is in a normal use state, the watertight member 301 can be secured by protruding from the arrangement recess 302 and being pressed against the lower collar 212. Further, when the elastic deformation restraining body 216 falls on the lower rod 212, the watertight member 301 is crushed by the weight of the elastic deformation restraining body 216, and the crushed watertight member 301 is accommodated in the arrangement recess 302, and is lifted up. The prevention piece 225 is in contact with the surface of the lower eyelid 212. As a result, the gap C2 between the upper collar 211 and the elastic deformation restraining body 216 can secure a sufficient interval, and the operator can reliably determine the gap C2.

Further, as shown in FIG. 56, the watertight member 301 may be disposed in the gap 303 between the tip surface of the lifting prevention piece 225 and the core member 221. In this case, when the elastic deformation restraining body 216 falls on the lower eyelid 212, the lifting prevention piece 225 reliably contacts the surface of the lower eyelid 212. Therefore, the gap C2 between the upper collar 211 and the elastic deformation restraining body 216 can secure a sufficient interval, and the operator can reliably determine the gap C2.

Furthermore, the watertight member 301 may be constituted by a bellows member 304 as shown in FIG. The bellows member 304 may be formed of a thin metal or a synthetic resin such as rubber. Further, when the watertight member is constituted by the bellows member 304, a taper portion 305 may be provided on the tip surface of the lifting prevention piece 225, and this may be used as a relief when the bellows member 304 is crushed. Also in such an example, when the elastic deformation restraining body 216 falls on the lower eyelid 212, the lifting prevention piece 225 can surely contact the surface of the lower eyelid 212. Therefore, the gap C2 between the upper collar 211 and the elastic deformation restraining body 216 can ensure a sufficient interval, and the operator can reliably determine the gap C2.

[12. Description of Modification 9 of Bearing Device]
The bearing device of the present invention can be further configured as shown in FIG. In the support device 310, a through hole 311 that penetrates the front and rear surfaces of the upper collar 211 is formed. The core material 312 is inserted into the through hole 311 from the upper surface side of the upper collar 211, and the amount of displacement of the upper collar 211 vertically downward without the tip of the core material 312 protruding from the upper surface of the upper collar 211 is considered. Thus, the tip portion is accommodated so as to be lowered one step further. A lifting prevention piece 311 a is formed in a flange shape at the opening end of the through hole 311. The elastic deformation restraining body 216 is fixed to the outer peripheral portion of the upper collar 211 with the fixing bolt 217 as in the above example. The tip of the elastic deformation restraining body 216 on the lower collar 212 side is located outside the outer peripheral portion of the lower collar 212 and is not fixed. Thereby, when the vertical load is input, the upper rod 211 can be displaced vertically downward while compressing the elastic body 213. That is, the distal end portion of the elastic deformation restraining body 216 on the lower collar 212 side is located outside the outer peripheral portion of the lower collar 212 so that the elastic body 213 disposed between the upper collar 211 and the lower collar 212 is sheared. A function of suppressing deformation and a role of a cylinder that restrains the elastic body 213 in a substantially hermetically sealed state to increase the bearing pressure are realized. Thus, the elastic body 213 supported by the lower rod 212 is disposed in a substantially sealed space with the upper surface surrounded by the upper rod 211 and the side surface by the elastic deformation restraining body 216. Therefore, the bearing device 310 is a substantially sealed rubber bearing, and can support a high load with a small bearing area.

The core material 312 inserted through the through-hole 311 is made of a metallic bolt-shaped member having a head that becomes the large-diameter portion 313, and the large-diameter portion 313, which is the tip portion, is inside the through-hole 311 of the upper collar 211. It is set to a size that can be accommodated. The core material 312 is inserted into the insertion hole 314 formed in the substantially central portion of the elastic body 213 from the through hole 311 of the upper collar 211, and further, a screw formed on the support surface side of the elastic body 213 of the lower collar 212. It is fixed by being screwed into the hole 315. When the core material 312 is inserted from the through-hole 311 and fixed to the screw hole 315, the large-diameter portion 313 is accommodated in the through-hole 311 so that the tip portion is lowered by one step. The core material 312 is fixed to the lower collar 212 so that when the upper collar 211 and the lower collar 212 are about to be displaced relatively in the horizontal direction, the core material 312 becomes the tip surface or the through hole of the lifting prevention piece 311a. The displacement of the upper collar 211 is limited by the core material 312 which hits the side surface of the 311 and is fixed to the lower collar 212. That is, the core material 312 functions as a horizontal displacement prevention unit, and prevents the upper collar 211 and the lower collar 212 from being excessively displaced in the horizontal direction. Further, the large-diameter portion 313 of the core material 312 is larger than the opening diameter of the lifting prevention piece 311a of the through hole 311 and engages with the lifting prevention piece 311a. When the lifting force is applied to the upper collar 211, the core material 312 is engaged with the large diameter portion 313 of the core material 312 fixed to the lower collar 212 so that the upper lifting prevention piece 311 a is locked. 212 is prevented from deviating. That is, the large diameter part 313 functions also as a lifting prevention part.

Such a support device 310 is extremely strong against a horizontal force because the core material 312 passes through the upper collar 211 and the elastic body 213 and is fixed to the lower collar 212. Then, as shown in FIG. 59, when a high lifting force exceeding the normal use range that damages the support device 310 is applied, the fixing bolt 217 is screwed into the screw hole 217d before the bolt seat 217c is damaged. The thread groove or the thread groove of the bolt shaft portion 217e is damaged and is pulled out from the screw hole 217d. Then, the elastic deformation restraining body 216 falls from the upper eyelid 211 side to the lower eyelid 212 side. In this case, it falls to the lower structure 202 by gravity. As a result, the gap C1 between the lower end surface 216b of the elastic deformation restraining body 216 and the lower structure 202, the lower plate 205, etc. existing so as to face the outer peripheral surface of the lower rod 212 before the breakage is elastically deformed. When the restraining body 216 falls to the lower eyelid 212 side, it becomes narrower or disappears. Instead, a gap C2 is generated between the upper eyelid 211 and the upper end surface 216c of the elastic deformation restraining body 216. Accordingly, the operator determines whether the gaps C1 and C2 are between the lower structure 202, the lower plate 205, etc. and the elastic deformation restraining body 216, or between the elastic deformation restraining body 216 and the upper collar 211, Alternatively, it is possible to visually confirm which gap is present on which side, and when there is a gap C2 on the upper collar 211 side, it can be determined that the support device 310 is damaged. Even if the elastic deformation restraining body 216 falls to the lower collar 212 side, the elastic body 213 supported by the core material 312 can continue to support the upper collar 211.

[13. Description of Modification 10 of Bearing Device]
In the above example, the elastic deformation restraining body 216 is fixed to the upper collar 211 with the fixing bolt 217 from the vertical displacement direction. However, as shown in FIG. 60, the elastic deformation restraining body 216 is fixed from the horizontal direction. You may make it fix to the upper collar 211 by 217. FIG. That is, as shown in FIG. 61, the support device 320 is attached so that the elastic deformation restraining body 216 surrounding the elastic body 213 is fitted to the upper side of the cylindrical upper collar 211, and the elastic deformation restraining body 216. The fixing bolt 217 is inserted into the horizontal through-hole 217b and further screwed into the horizontal screw hole 217b of the upper collar 211. Such a support device 320 is extremely strong against horizontal force because the upper collar 11 is fitted to the elastic deformation restraining body 216.

In this bearing device 320, an elastic body 213 is disposed on the lower arm 212, and an upper arm 211 surrounded by an elastic deformation restraining body 216 is disposed on the elastic body 213. Further, the distal end portion of the elastic deformation restraining body 216 on the lower collar 212 side is located outside the outer peripheral portion of the lower collar 212 and is not fixed. Thereby, when the vertical load is input, the upper rod 211 can move vertically downward while compressing the elastic body 213. In other words, the support device 320 is arranged such that the tip of the elastic deformation restraining body 216 on the lower collar 212 side is located outside the outer peripheral portion of the lower collar 212 so that the lower collar 212 is arranged between the upper collar 211 and the lower collar 212. The function which suppresses the shear deformation of the elastic body 213 provided, and the role of the piston which restrains the elastic body 213 in a substantially sealed state and increases the bearing pressure are realized. Thus, the elastic body 213 supported by the lower rod 212 is surrounded by the upper rod 211 on the upper surface and the elastic deformation restraining body 216 on the side surface, and is disposed in a semi-sealed space. The bearing device 320 is a semi-sealed rubber bearing, and can support a high load with a small bearing area.

As shown in FIG. 61, when a high lifting force exceeding the normal use range that causes damage to the support device 320 is applied, the bolt shaft portion 217e of the fixing bolt 217 shears and breaks. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. Thereby, before the breakage, the gap C1 between the lifting prevention piece 225 and the lower rod 212 becomes narrower or disappears due to the drop of the elastic deformation restraining body 216. Instead, the upper collar 211 and the elastic deformation restraining body 216 A gap C2 is generated between the two. Accordingly, the operator determines whether the gaps C1 and C2 are between the elastic deformation restraining body 216 and the lower rod 212 or between the elastic deformation restraining body 216 and the upper rod 211, and to what extent there is a gap. It can be confirmed visually that there is a gap C2 on the upper collar 211 side, and it can be determined that the bearing device 320 is broken. Even if the elastic deformation restraining body 216 falls on the lower collar 212, the elastic body 213 supported by the core member 221 can continue to support the upper collar 11.

61 and 62, the support device 320 without the core material has been described. In this support device 320, as in the support devices 210, 230, 240, 250, 260, 270, 280, 290, 300, The upper collar 211 may be disposed on the elastic deformation restraining body 216, and the elastic deformation restraining body 216 may be fixed to the upper collar 211 with the fixing bolt 217 from the vertical displacement direction. Thereby, even in a support device without a core material, it is possible to determine whether the fixing bolt 217 is broken by the uplift force or broken by the uplift force.

[14. Description of Modification 11 of Bearing Device]
FIG. 62 shows a bearing device 330 having a core material 221 as in FIG. 31. As in FIG. 61, the elastic deformation restraining body 216 is fixed to the upper collar 211 with fixing bolts 217 from the horizontal direction. Is. Such a support device 330 is extremely strong against horizontal force because the upper collar 211 is fitted to the elastic deformation restraining body 216. As shown in FIG. 63, when a high lifting force exceeding the normal use range that damages the support device 330 is applied, the bolt shaft portion 217 e of the fixing bolt 217 shears and breaks. Then, the elastic deformation restraining body 216 falls on the lower rod 212 from the upper rod 211 side, and approaches and / or contacts. As a result, before the breakage, the gap C1 between the lifting prevention piece 225 and the lower rod 212 becomes narrower or disappears due to the drop of the elastic deformation restraining body 216. Instead, the upper collar 211 and the elastic deformation restraining body 216 A gap C2 is generated between the two. Accordingly, the operator determines whether the gaps C1 and C2 are between the elastic deformation restraining body 216 and the lower rod 212, or between the elastic deformation restraining body 216 and the upper rod 211, and to what extent there is a gap. It can be confirmed visually that there is a gap C2 on the upper collar 211 side, and it can be determined that the bearing device 330 is broken. Even if the elastic deformation restraining body 216 falls on the lower rod 212, the elastic body 213 supported by the core member 221 can continue to support the upper rod 211.

[15. Other variations]
In the above description, the bridge support device has been described as the support device of the present invention. However, the present invention is not limited to the bridge support device, but as a support device for vibration control and seismic isolation of various structures. It can be adopted. In addition, the fixing method of the upper collar 211 and the lifting prevention portion may be welding, bonding with an adhesive, or the like in addition to using the fixing bolt 217 described above.

(Fourth embodiment)
Hereinafter, a support device to which an elastic body restraint degree variable structure according to the present invention which is a fourth embodiment is applied will be described with reference to the drawings. Hereinafter, the support device will be described in the following order.

1. 1. Explanation of bearing device 2. Description of elastic body and elastic deformation restraint body 3. Explanation of operation of bearing device 4. Description of Modification 1 of the bearing device 5. Description of Modification 2 of Bearing Device 6. Description of Modification 3 of the bearing device Other variations

[1. Description of bearing device]
As shown in FIG. 64, the support device 410 is mounted between an upper structure 401 such as a bridge girder and a lower structure 402 such as a pier or an abutment to support various loads such as a horizontal load, a vertical load, and a rotational load. At the same time, it is a bridge support device that supports and absorbs and disperses vibrations, vibrations and stresses caused by earthquakes, winds, dynamic or static traffic loads, and the like. In the support device 410, an elastic body 413 serving as a support body is interposed between an upper collar 411 serving as a first rigid body and a lower collar 412 serving as a second rigid body. The elastic body 413 is surrounded by an elastic deformation restraining body 416 fixed to the upper collar 411 or the lower collar 412 (here, the upper collar 411).

The upper arm 411 is made of metal, ceramics, or a rigid material such as hard resin or reinforced resin such as FRP. However, the upper collar 411 is not limited to these materials like the above-described upper collars 11, 111, and 211. The shape is preferably a square or a circle, but is not limited to these shapes.

As a means for fixing the upper flange 411 to the upper structure 401, the upper flange 411 may be directly fixed to the upper structure 401 by using fastening means such as bolts and nuts, for example. The upper plate 411 is indirectly fixed to the upper structure 401 by using an upper plate 403 having a plate shape wider than 411. The method for fixing the upper collar 411 to the upper structure 401 is not limited to these examples.

When used as a movable bearing device, a sliding member 404 is disposed between the upper collar 411, for example, between the upper collar 411 and the upper plate 403, so that the upper structure 401 and the bearing apparatus 410 are relatively moved. You may fix so that displacement is possible. As the sliding member 404, for example, a plate having a surface with a low friction coefficient such as polytetrafluoroethylene (PTFE) which is a kind of fluorocarbon resin is fixed to the upper surface of the upper collar 411, or It can be configured by being fixed to the lower surface on the attachment means side fixed to the upper structure 401 or the upper structure 1.

The lower arm 412 is made of a rigid material such as metal, ceramics, hard resin, or reinforced resin such as FRP, like the upper arm 411. However, the lower collar 412 is not limited to these materials, like the upper collar 12, 112, 212 described below. The shape is preferably a square or a circle, but is not limited to these shapes. However, the planar shape and the like of the lower collar 412 do not necessarily match the upper collar 411. Must be aligned with each other.

As a means for fixing the lower rod 412 to the lower structure 402, the lower rod 412 may be directly fixed to the lower structure 402 by using fastening means such as bolts and nuts, for example. A lower plate 412 is indirectly fixed to the lower structure 402 by using a lower plate 405 having a plate shape wider than 412. The method of fixing the lower collar 412 to the lower structure 402 is not limited to these examples.

When used as a movable support device or the like, a sliding member 406 is disposed below the lower rod 412, for example, between the lower plate 405 and the lower rod 412, so that the lower structure 402 and the support device 410 are relative to each other. You may fix so that displacement is possible. As the sliding member 406, for example, a plate having a low coefficient of friction surface such as PTFE is fixed to the lower surface of the lower collar 412, or the lower structure 402 or the lower structure 402 is fixed to the sliding member 406. It is possible to fix to the upper surface on the means side.

It should be noted that the direct or indirect fixing of the upper rod 411 or the lower rod 412 is preferably a detachable method, and fastening with bolts, nuts, etc. is an example.

[2. Explanation of elastic body and elastic deformation restraint body]
The elastic body 413 used here is, for example, an elastic body having a laminated structure in which an elastic layer 413a and a reinforcing plate 413b are laminated in the same manner as the elastic body described above. The elastic body 413 is provided with a reinforcing plate 413b, a plurality of elastic layers 413a, and the reinforcing plate 413b and the elastic layer 413a are bonded to each other by vulcanization bonding. In addition, the upper surface and the lower surface of the elastic body 13 are reinforced by vulcanizing and bonding the upper plate 413c and the lower plate 413d.

Here, the elastic layer 413a is formed using natural rubber, synthetic rubber, thermoplastic elastomer or thermosetting elastomer. In addition, about a material, since it is the same as that of the elastic body of 1st thru | or 3rd embodiment, it abbreviate | omits for details. In addition, the elastic body 413 used here may be a single elastic layer (single layer) or a laminated type with a reinforcing plate 413b interposed. In addition, the reinforcing plate 413b, the upper plate 413c, and the lower plate 413d are made of a rigid steel material such as an iron plate. In the laminated elastic body 413 as described above, when a load is applied, the side surface of the elastic layer 413a between the reinforcing plates 413b which are free side surfaces bulge slightly to the side according to the magnitude of the load. It has the characteristic to do.

And around the elastic body 413, the convex part 414 and the recessed part 415 are provided in the circumference direction.

The elastic body 413 as described above is disposed and supported by the large-diameter portion 422 of the core member 421 fixed to the lower collar 412. The elastic body 413 may adhere between the upper collar 411 and the lower collar 412 to increase the bearing pressure. However, by not bonding, the elastic body 413 can also realize good rotation followability.

In the above example, the case where the elastic body 413 is a laminated type has been described. However, the elastic body 413 according to the present invention is provided with a rigid reinforcing plate 413b such as an iron plate inside while providing the convex portion 414 and the concave portion 415. One (single layer) elastic layer may not be provided. The size of the elastic body 413 may be a size that fits the elastic deformation restraining body 416 when inserted into the elastic deformation restraining body 416. A gap may be provided between the elastic member 413 and the side surface of the elastic body 413. In the following description, a laminated elastic body having the convex portions 414 and the concave portions 415 shown in FIG. 64 will be described as an example.

The elastic body 13 configured as described above is surrounded by an elastic deformation restraining body 416 as shown in FIG. The elastic deformation restraining body 416 is a cylindrical body having an inner diameter slightly larger than the outer diameter of the elastic body 413, and is fixed to either the upper collar 411 or the lower collar 412, or the outer periphery of the upper collar 411 in FIG. For example, the upper collar 411 and the elastic deformation restraining body 416 are coupled by a fixing bolt 417 that is a fastening member constituting the fixing portion, and the elastic deformation restraining body 416 is in the vertical displacement direction of the elastic body 413, that is, on the upper side. It is fixed from. Specifically, a bolt recess 417a is formed in the thickness direction on the outer periphery of the upper surface of the upper collar 411, and a through hole 417b is formed in the bottom thereof, and a bolt seat 417c is formed around the through hole 417b. Is formed. Further, a screw hole 417d corresponding to the through hole 417b is formed on the upper end surface of the elastic deformation restraining body 416. In other words, the screw portion 417e in the bolt shaft portion is screwed in from the upper side in parallel with the core member 421 (in the direction of vertical displacement). The bolt head 417f of the fixing bolt 417 is accommodated without protruding from the bolt recess 417a so as not to hit the upper structure 401 or the upper plate 403. The fixing bolt 417 has such a strength that the threaded portion 417e is broken before other members are damaged when an excessive lifting force or horizontal force is applied.

Furthermore, a core material 421 is fixed to the lower rod 412 to form a lifting prevention portion and a horizontal displacement prevention portion. Specifically, the lower end portion of the core material 421 is fixed to a lower collar 412 serving as a base plate. The core member 421 is made of a metallic bolt-shaped member having a head portion that becomes the large-diameter portion 422. The large-diameter portion 422 that is the tip portion is disposed in the elastic deformation restraining body 416, and the elastic body 413 is almost sealed. It functions like a piston that is constrained by the state and increases the bearing pressure. The core member 421 is fixed by being screwed into the screw hole 423 of the lower collar 412. The structure for fixing the core material 421 to the lower collar 412 is not limited to this. For example, a fixing bolt inserted from the lower surface of the lower collar 412 is screwed into the screw hole of the core material 421 and fixed. You may make it do. Further, the bonding strength between the core member 421 and the lower collar 412 is higher than the coupling force between the upper collar 411 and the elastic deformation restraining body 416 described above, and when a high lifting force or horizontal force exceeding the normal use range is applied. In addition, the fixing portion between the core member 421 and the lower collar 412 is prevented from being damaged before the fixing bolt 417. The large-diameter portion 422 may also be fixed by, for example, screwing a screw portion provided at the tip portion of the core member 421 into a screw hole of the large-diameter portion of another member.

The large-diameter portion 422 integrated with the core member 421 engages with the anti-lifting piece 425 of the elastic deformation restraining body 416 whose lower surface of the outer peripheral portion is fixed to the outer peripheral portion of the upper collar 411 by a fixing member 424 such as a screw. The fixing member 424 is also configured such that the bolt head is contained in the bolt recess 424a of the lower rod 412 and does not protrude toward the lower rod 412 side. The large-diameter portion 422 of the core member 421 integrated with the lower rod 412 serves as an anti-lifting portion, and when an upper lifting force is applied to the upper rod 411, the upper anti-raising piece 425 on the upper rod 411 side is locked. The upper collar 411 and the lower collar 412 are prevented from separating. That is, the large-diameter portion 422 of the core material 421 is disposed in the elastic deformation restraining body 416, thereby allowing the elastic body 413 to be displaced in the vertical direction and serving as a horizontal displacement prevention portion. The horizontal displacement is regulated at 421. Thereby, it is possible to prevent the upper collar 411 and the lower collar 412 from being relatively displaced in the horizontal direction. Furthermore, a gap 419 is provided between the lifting prevention piece 425 and the lower rod 412, and when the upper rod 411 moves to the lower rod 412 side by being displaced vertically downward, the lifting prevention piece 425 does not move. It does not hit the lower arm 412. The lifting prevention piece 425 may be fixed to the elastic deformation restraining body 416 by welding or the like. Further, the coupling strength between the elastic deformation restraining body 416 and the anti-lifting piece 425 by the fixing member 424 is higher than the coupling force between the upper collar 411 and the elastic deformation restraining body 416 described above, and exceeds the normal use range that causes damage. Even when a high load is applied, the fixing portion between the elastic deformation restraining body 416 and the lifting prevention piece 425 is prevented from being damaged before the fixing bolt 417.

That is, in the support device 410, the lower collar 412 is disposed between the upper collar 411 and the lower collar 412 by disposing the large-diameter portion 422 that supports the elastic body 413 in the elastic deformation restraining body 416. The function of suppressing the shear deformation of the elastic body 413 and the role of a piston that restrains the elastic body 413 in a substantially sealed state to increase the bearing pressure. Thus, the elastic body 413 supported by the lower collar 412 is surrounded by the upper collar 411 and the side surface by the elastic deformation restraining body 416 and is disposed in a semi-sealed space. The bearing device 410 is a semi-sealed rubber bearing, and can support a high load with a small bearing area.

Describing the assembling method of the support device 410, as shown in FIG. 65, the core material 421 is inserted into the elastic deformation restraining body 416, and the core material 421 is fixed to the screw hole 423 of the lower collar 412. Thereby, a pot portion for accommodating the elastic body 413 is formed in the elastic deformation restraining body 416 by the large diameter portion 422. Thereafter, the elastic body 413 is disposed on the large-diameter portion 422 of the core member 421 in the pot portion.

Here, the fixing structure of the upper collar 411 and the elastic deformation restraining body 416 will be described. The upper collar 411 penetrates in the thickness direction at a position corresponding to the upper end surface of the elastic deformation restraining body 416 which is a cylindrical body. In addition, a through hole 417b through which the fixing bolt 417 is inserted is formed. Specifically, the plurality of through holes 417b are formed in an annular shape corresponding to the position where the upper end face of the elastic deformation restraining body 416 contacts. A screw hole 417d into which the screw portion 417e of the fixing bolt 417 is screwed is formed in an annular shape on the upper end surface of the elastic deformation restraining body 416. Further, a preliminary screw hole 426 is formed between the screw holes 417d on the upper end face of the elastic deformation restraining body 416. The preliminary screw holes 426 are the same as the screw holes 417d, and are formed between the screw holes 417d so as to have the same number as the screw holes 417d.

As shown in FIG. 65, the upper collar 411 is disposed on the upper end surface of the elastic deformation restraining body 416, and the upper collar 411 and the elastic deformation restraining body 416 have the axes of the through hole 417b and the screw hole 417d aligned with each other. The threaded portion 417e is inserted into the through hole 417b, and further, the threaded portion 417e is tightened into the threaded hole 417d. Of course, the method of assembling the support device 410 is not limited to the above example. A sliding portion 418 is provided between the elastic body 413 and the elastic deformation restraining body 416 so that the elastic body 413 can be smoothly displaced vertically within the elastic deformation restraining body 416 with low friction. Further, in order to reduce the frictional force, a lubricant may be applied, the constraining surface 416a of the elastic deformation restraining body 416 is mirror-finished to reduce friction, or in combination with a lubricant With the above input, when the fixing bolt 417 that fixes the elastic deformation restraining body 416 to the upper collar 411 breaks, the elastic deformation restraining body 416 moves in the vertical direction with respect to the elastic body 413. You may comprise so that it may become easy.

Here, the relationship in size between the elastic body 413 and the elastic deformation restraining body 416 will be described. In the example of FIG. 64, the support device 410 is installed between the upper structure 401 and the lower structure 402, and the support device. In a state where the elastic body 413 is deformed by the load of the upper structure 401 with respect to 410 (for example, a dead load is applied), the convex portion 414 on the side surface of the elastic body 413 is the inner peripheral surface of the elastic deformation restraining body 416. It is in the state which contact | abutted to the restraining surface 416a. That is, before being installed between the upper structure 401 and the lower structure 402, the convex portion 414 on the side surface of the elastic body 413 is not in contact with the restraining surface 416a on the inner peripheral surface of the elastic deformation restraining body 416. In this state, a gap is provided, and when installed between the upper structure 401 and the lower structure 402, the convex portion on the side surface of the elastic body 413 is caused by the dead load of the upper structure 401. 414 comes into contact with the restraining surface 416a on the inner peripheral surface of the elastic deformation restraining body 416. When a dead load is loaded, the convex portion 414 on the side surface of the elastic body 413 is not in contact with the restraining surface 416a on the inner peripheral surface of the elastic deformation restraining body 416, and there is a live load due to a traffic load such as a large vehicle. Further, the convex portion 414 on the side surface of the elastic body 413 comes into contact with the constraining surface 416a on the inner peripheral surface of the elastic deformation restraining body 416, and the convex portion 414 and the concave portion 415 bulge on the constraining surface 416a by further high load input. The deformed part may be pressed.

[3. Explanation of operation of bearing device]
In the support device 410 as described above, when installed between the upper structure 401 and the lower structure 402, as shown in FIG. 64, the elastic body 413 has a load in a normal use range (for example, dead load or (Dead load + live load during vehicle passage), and the convex portion 414 of the elastic body 413 is positioned close to or in contact with the restraining surface 416a of the elastic deformation restraining body 416 surrounding the elastic body 413. In the supporting device 410, the elastic body 413 is elastically deformed according to the magnitude of the vertical load, and the elastic deformation is restrained while the side surface convex portion 414 is deformed so as to fill the gap formed by the concave portion 415. The body 416 is pressed against the restraining surface 416a of the body 416. That is, the displacement amount of the elastic body 413 is limited by the elastic deformation restraining body 416.

Further, the relationship between the convex portions 414 and the concave portions 415 of the elastic body 413 and the restraining surface 416a of the elastic deformation restraining body 416 will be described. The laminated elastic body 413 has the convex portions 414 at the position of the elastic layer 413a on the free side surface. The recess 415 is provided at the position of the reinforcing plate 413b. In this case, the convex portion 414 is strongly pressed against the restraining surface 416a of the elastic deformation restraining body 416 before the concave portion 415 due to the free side surface of the elastic layer 413a bulging when a load is applied. In the laminated elastic body 413, a convex portion 414 is provided on the elastic layer 413a at the position between the reinforcing plates with the largest amount of bulging in the past, and the swelling around the convex portion 414 is formed by the restraining surface 416a of the elastic deformation restraining body 416. Since the protruding amount is constrained, local stress on the elastic layer 413a around the internal reinforcing plate 413b is relieved even when a high load is input. Further, the internal reinforcing plate 413b is not easily crushed even by a high load, and the reinforcing plate 413b can be made thin, so that the overall thickness of the support device 410 can be realized. Note that the position of the reinforcing plate 413b may be the convex portion 414, and the position of the elastic layer 413a may be the concave portion 415. In this case, since the free side surface of the elastic layer 413a which is a concave portion slightly bulges, the convex portion 414 and the concave portion 415 are similarly brought into contact with the restraining surface 416a of the elastic deformation restraining body 416 and are evenly distributed. It can be pressed.

In the support device 410, the large-diameter portion 422 of the core member 421 that supports the elastic body 413 is disposed inside the elastic deformation restraining body 416, so that the large-diameter portion 422 has the lower collar 412 and the upper collar 411. The function of suppressing the shear deformation of the elastic body 413 disposed between the lower arm 412 and the role of a piston that restrains the elastic body 413 in a substantially sealed state to increase the bearing pressure. Thus, the elastic body 413 supported by the lower collar 412 is surrounded by the upper collar 411 and the side surface by the elastic deformation restraining body 416 and disposed in a semi-sealed space, and becomes a semi-sealed rubber bearing. It is possible to support a high load with a small bearing area.

Further, when a rotational force is applied in the vertical plane over a low load to a high load input, the elastic body 413 is partially supported by the elastic deformation restraining body 416, but the elastic body is formed by the gap between the convex portion 414 or the concave portion 415. 413 deform | transforms and it can implement | achieve favorable rotation followability, without the extreme load to an elastic body.

Next, the case where a high load (for example, a live load in the event of a large earthquake) exceeding the normal use range that causes damage to the support device 10 will be described. FIG. 66 is a cross-sectional view in the case where a large horizontal force or upward lifting force that damages the support device 410 is applied. As shown in FIG. 64, the coupling strength between the core member 421 and the lower collar 412 is higher than the coupling force between the upper collar 411 and the elastic deformation restraining body 416, and the elastic deformation restraining body by the fixing member 424. The coupling strength between 416 and the lifting prevention piece 425 is also higher than the coupling force between the upper collar 411 and the elastic deformation restraining body 416 described above. For this reason, in the support device 410, when an uplift force or a horizontal force that exceeds a normal use range such that the support device 410 is damaged is applied, the threaded portion 417e is broken before other members are damaged. Then, the elastic deformation restraining body 416 drops from the upper collar 411 side onto the lower collar 412 and approaches and / or contacts. As a result, the gap 419 between the lifting prevention piece 425 and the lower rod 412 before breakage becomes narrower or disappears due to the drop of the elastic deformation restraining body 416. Instead, the upper collar 411 and the elastic deformation restraining body 416 A gap 420 is generated between them. Therefore, the operator can determine whether the gaps 419 and 420 are between the elastic deformation restraint body 416 and the lower collar 412, between the elastic deformation restraint body 416 and the upper collar 411, or to what extent. Whether or not there is a gap is visually confirmed, and when there is a gap 420 on the upper collar 411 side, it can be determined that the support device 410 is broken. Even if the elastic deformation restraining body 416 falls on the lower collar 412, the elastic body 413 supported by the core member 421 can continue to support the upper collar 411.

As described above, the support device 410 is supported by the core member 421 even when the coupling between the upper collar 411 and the elastic deformation restraining body 416 is broken due to an upward lifting force or horizontal force exceeding the normal use range. The formed elastic body 413 can continue to support the upper collar 411. However, this state is provisional, and it is necessary to sequentially restore the bridge and the like including the damaged support device 10. When restoring a bridge or the like including the bearing device 410, it is more efficient from the viewpoint of restoration work and cost to restore the function by repairing the bearing device 410 than to replace the entire bearing device 410. There are cases.

Therefore, in the support device 410, the function of the support device 410 can be restored without having to replace all of them when the bridge including the support device 410 is restored. Specifically, when the bridge including the support device 410 is restored, the upper structure 401 is lifted with a jack or the like, the upper rod 411 is removed from the upper structure 401, and remains in the through hole 417b of the upper rod 411. The fixing bolt 417 is removed from the through hole 417b. Here, the broken bolt shaft portion and the screw portion 417e remain in the screw hole 417d on the upper end surface of the elastic deformation restraining body 416. Therefore, for example, the upper end face of the elastic deformation restraining body 416 is flattened, and the broken bolt shaft portion and the threaded portion 417 e protruding from the upper end face of the elastic deformation restraining body 416 are scraped off. Of course, the bolt shaft portion and the screw portion 417e may be removed from the screw hole 417d. An unused preliminary screw hole 426 is formed between the screw holes 417 d on the upper end face of the elastic deformation restraining body 416. 67, when the support device 410 is restored, the elastic deformation restraining body 416 is aligned with the axis of the auxiliary screw hole 426 from the state where the through hole 417b and the screw hole 417d are aligned with the axis (see FIG. 67A). The rotated state (see FIG. 67B) is rotated by θ. Then, as shown in FIG. 68, the threaded portion 417e on the bolt shaft portion of the new fixing bolt 417 is inserted into the through hole 417b of the upper collar 411, and further, the threaded portion 417e is inserted into the spare screw hole 426. Tightened. That is, here, the elastic deformation restraining body 416 is joined to the lower surface of the upper collar 411 by using the preliminary screw hole 426 instead of the screw hole 417d which is blocked by the remaining bolt shaft portion and the screw portion 417e and cannot be used. Like to do. As described above, when the repair of the support device 410 is completed, the repaired support device 410 is fixed to the upper structure 401 by placing the upper structure 401 on the upper collar 411 with a jack or the like.

In the above-described support device 410, the upper structure 401 can be repaired in a state where the upper structure 401 is separated from the lower structure 402 when the bridge or the like is restored. At this time, the support device 410 rotates the elastic deformation restraining body 416 by θ, aligns the axes of the through hole 417b of the upper collar 411 and the auxiliary screw hole 426, and connects them with a new fixing bolt 417. The function can be restored. That is, in the support device 410, it is not necessary to replace the entire support device 410 when restoring the bridge or the like, and the upper arm 411 and the elastic deformation restraining body 416 can be used as they are. Accordingly, when the bridge is restored, the work for replacing the entire support device 410 can be omitted, and the work efficiency can be improved. Further, with respect to the support device 410, the only new part is the fixing bolt 417, and the construction cost can be reduced.

In the present invention, after the upper collar 411 and the elastic deformation restraining body 416 are coupled using the preliminary screw hole 426 of the elastic deformation restraining body 416, repair work for replacing the support device 410 may be performed again. good.

[4. Description of Modification 1 of Bearing Device]
In the example of FIG. 64, the fixing bolt 417 is inserted from the upper flange 411 side, and the upper flange 411 and the elastic deformation restraining body 416 are coupled. However, the support device 430 shown in FIG. A fixing bolt 417 is inserted from above, and the upper collar 411 and the elastic deformation restraining body 416 are coupled.

Specifically, as shown in FIGS. 69 and 70, a flange portion 431 is formed on the elastic deformation restraining body 416 so as to protrude outward from the upper end surface. A bolt recess 417a is formed in the thickness direction on the lower surface of the flange portion 431, a through hole 417b is formed at the bottom thereof, and a bolt seat portion 417c is formed around the through hole 417b. . Further, a screw hole 417d corresponding to the through hole 417b is formed on the lower surface of the upper collar 411. That is, the screw portion 417e of the bolt shaft portion is screwed in parallel to the core member 421 (in the direction of vertical displacement). The fixing bolt 417 has such a strength that the bolt shaft portion and the screw portion 417e are broken before other members are damaged when excessive lifting force or horizontal force is applied. The screw portion 417e of the fixing bolt 417 is screwed into the screw hole 417d in parallel with the core member 421 from the lower side (in the direction of vertical displacement). Further, a preliminary screw hole 426 is formed between the screw holes 417 d on the lower surface of the upper collar 411. The preliminary screw holes 426 are the same as the screw holes 417d, and are formed between the screw holes 417d so as to have the same number as the screw holes 417d.

The assembly method of the support device 30 will be described. As shown in FIGS. 69 and 70, a core member 421 is inserted into the elastic deformation restraining body 416, and the core member 421 is inserted into the screw hole 423 of the lower rod 412. Fixed. Thereby, a pot portion for accommodating the elastic body 413 is formed in the elastic deformation restraining body 416 by the large diameter portion 422. Thereafter, the elastic body 413 is disposed on the large-diameter portion 422 of the core member 421 in the pot portion. The flange portion 431 of the elastic deformation restraining body 416 is abutted against the lower surface of the upper flange 411, and the axes of the through hole 417b of the flange portion 431 and the screw hole 417d of the upper flange 411 are aligned. The upper collar 11 and the elastic deformation restraining body 416 are formed by inserting the screw portion 417e of the bolt shaft portion into the through hole 417b of the flange portion 431 of the elastic deformation restraining body 416 and further threading the screw portion 417e into the screw hole 417d of the upper collar 411. Are integrated and coupled by tightening. Of course, the method of assembling the bearing device 430 is not limited to the above example.

Next, a case where a high load (for example, a live load at the time of occurrence of a large earthquake) exceeding the normal use range in which the support device 430 is damaged will be described. FIG. 71 is a cross-sectional view in the case where a large horizontal force or lifting force that causes damage to the support device 430 is applied. In this support device 430, the coupling strength between the core member 421 and the lower collar 412 is higher than the coupling force between the upper collar 411 and the elastic deformation restraining body 416 described above, and the elastic deformation restraining body 416 and the upper lifting force are fixed by the fixing member 424. The coupling strength with the prevention piece 425 is also higher than the coupling strength between the upper collar 411 and the elastic deformation restraining body 416 described above. For this reason, in the support device 430, when an uplift force or a horizontal force exceeding the normal use range in which the support device 430 is damaged is applied, the bolt shaft portion and the screw portion 417e are broken before other members are damaged. . Then, the elastic deformation restraining body 416 falls from the upper collar 411 side onto the lower collar 412 and approaches and / or abuts. As a result, the gap 419 between the lifting prevention piece 425 and the lower rod 412 before breakage becomes narrower or disappears due to the drop of the elastic deformation restraining body 416. Instead, the upper rib 411 and the elastic deformation restraining body 416 A gap 420 is generated between the flange portion 431 and the flange portion 431. Therefore, the operator can determine whether the gaps 419 and 420 are between the elastic deformation restraining body 416 and the lower collar 412, between the flange portion 431 of the elastic deformation restraining body 416 and the upper collar 411, or which It is possible to determine that the bearing device 430 is broken when the gap 420 is on the upper collar 411 side. Even if the elastic deformation restraining body 416 falls on the lower collar 412, the elastic body 413 supported by the core member 421 can continue to support the upper collar 411.

As described above, the support device 430 is supported by the core member 421 even when the coupling between the upper collar 411 and the elastic deformation restraining body 416 is broken due to an upward lifting force or horizontal force exceeding the normal use range. The formed elastic body 413 can continue to support the upper collar 411. However, this state is provisional, and it is necessary to sequentially recover the bridge including the damaged bearing device 430. When restoring a bridge or the like including the support device 430, it is more efficient from the viewpoint of recovery work and cost to restore the function by repairing the support device 430 than to replace the entire support device 430. There are cases.

Therefore, in the support device 430, the function of the support device 430 can be restored without having to replace all of them when the bridge including the support device 430 is restored. Specifically, when a bridge or the like including the support device 430 is restored, the lower surface of the upper rod 411 is flattened while the upper rod 411 remains attached to the upper structure 1, and screw holes The broken bolt shaft part and screw part 417e remaining on 417d are scraped off. Further, the bolt shaft portion including the bolt head portion 417f and the screw portion 417e are removed from the through hole 417b of the flange portion 431 of the elastic deformation restraining body 416. When the fixing bolt 417 is broken, the bolt shaft portion and the screw portion 417e including the bolt head portion 417f are dropped from the bolt concave portion 417a by its own weight. Further, even when it does not naturally fall from the bolt recess 417a, gravity acts and the bolt shaft portion and the screw portion 417e including the bolt head 417f can be easily removed from the bolt recess 417a.

As described above, the preliminary screw holes 426 are formed between the screw holes 417d of the upper collar 411. When the support device 430 is restored, as shown in FIG. 72, the elastic deformation restraining body 416 is in a state where the through hole 417b of the flange portion 431 of the elastic deformation restraining body 416 is aligned with the screw hole 417d of the upper collar 411 ( From FIG. 72A), it is rotated by θ to a state (FIG. 72B) that coincides with the axis of the preliminary screw hole 426. The elastic deformation restraining body 416 is lifted by a jack or the like, and the flange portion 431 is brought close to the lower surface of the upper collar 411. Thereafter, as shown in FIG. 73, a thread portion 417e of a new fixing bolt 417 is inserted into the through-hole 17b of the flange portion 431 of the elastic deformation restraining body 416, and further, a preliminary screw hole on the lower surface of the upper collar 411. A screw portion 417e is fastened to 426.

With the support device 430 as described above, the upper structure 401 can be repaired without lifting it with a jack or the like when the bridge is restored. Specifically, the support device 430 rotates the elastic deformation restraint body 416 spaced apart from the upper collar 411 by θ so that the through hole 417b of the flange portion 431 of the elastic deformation restraint body 416 and the preliminary screw hole of the upper collar 411 By aligning the axis with 426 and connecting with a new fixing bolt 417, the function can be recovered. In other words, in the support device 430, it is not necessary to lift the upper structure 401 with a jack or the like when restoring a bridge or the like, it is not necessary to replace the entire support device 430, and the upper arm 411 is also restrained by elastic deformation. The body 416 can also be used as it is. Therefore, when repairing the support device 430, it is not necessary to lift the upper structure 401 with a jack or the like, and work efficiency can be improved. Further, with respect to the bearing device 430, the only new part is the fixing bolt 417, and the construction cost can be reduced.

[5. Description of Modification 2 of Bearing Device]
In the examples of FIGS. 69 to 73, the case where the flange portion 431 is integrally formed on the upper side of the elastic deformation restraining body 416 has been described. However, in the examples of FIGS. 74 and 75, the elastic deformation restraining body 416 and the flange portion are formed. A support device 440 provided separately from 431 will be described.

In this support device 440, a ring-shaped flange plate 441 is fixed to the upper end surface of the elastic deformation restraining body 416. A screw hole 442 for fixing the flange plate 441 is formed on the upper end surface of the elastic deformation restraining body 416. In addition, a bolt recess 444 that accommodates the bolt head of the fixing bolt 443 is formed on the inner peripheral side of the flange plate 441 corresponding to the screw hole 442, and a bolt shaft of the fixing bolt 443 is formed on the bottom surface of the bolt recess 444. A through-hole 445 is formed through which a threaded portion is inserted. The flange plate 441 is disposed on the upper end surface of the elastic deformation restraining body 416 before being fixed to the upper collar 411, and the axis of the screw hole 442 of the elastic deformation restraining body 416 and the through hole 445 of the flange plate 441 coincide with each other. Then, the fixing bolt 443 is inserted from the through hole 445 side of the flange plate 441 and is fastened to the screw hole 442 of the elastic deformation restraining body 416. The bolt head portion of the fixing bolt 443 is accommodated in the bolt recess 444, and the upper collar 411 is disposed on the flange plate 441. When the flange plate 441 is fixed to the upper end surface of the elastic deformation restraining body 416, the outer peripheral side projects from the elastic deformation restraining body 416, and the overhanging portion becomes a portion fixed to the lower surface of the upper collar 411 with the fixing bolt 417. In the elastic deformation restraining body 416, a pot portion for housing the elastic body 413 is formed by the large diameter portion 422 of the core member 421. The pot portion is constituted by the inside of the elastic deformation restraining body 416 and the inner peripheral surface of the flange plate 441.

A bolt recess 417a is formed in the thickness direction on the lower surface on the outer peripheral side of the flange plate 441, a through hole 417b is formed in the bottom thereof, and a bolt seat portion 417c is formed around the through hole 417b. ing. Further, a screw hole 417d corresponding to the through hole 417b is formed on the lower surface of the upper collar 411. That is, the screw portion 417e of the bolt shaft portion is screwed in parallel (in the direction of vertical displacement) with the core member 421. The fixing bolt 417 has such a strength that the bolt shaft portion and the screw portion 417e are broken before other members are damaged when excessive lifting force or horizontal force is applied. For example, as described above, the flange plate 441 is fixed to the upper end surface of the elastic deformation restraining body 416 by the fixing bolt 443, but the fixing bolt 417 is a fixed portion between the flange plate 441 and the elastic deformation restraining body 416. It is strong enough to break before it breaks. The screw portion 417e of the fixing bolt 417 is screwed into the screw hole 417d in parallel with the core member 421 from the lower side (in the direction of vertical displacement). Further, a preliminary screw hole 426 is formed between the screw holes 417 d on the lower surface of the upper collar 411. The preliminary screw holes 426 are the same as the screw holes 417d, and are formed between the screw holes 417d so as to have the same number as the screw holes 417d.

Describing a method for assembling the support device, a core member 421 is inserted into the elastic deformation restraining body 416, and the core member 421 is fixed to the screw hole 423 of the lower collar 412. Thereby, the elastic body 413 is arrange | positioned on the large diameter part 422 of the core material 421 in a pot part. Further, a flange plate 441 is disposed on the upper end surface of the elastic deformation restraining body 416, and the fixing bolt 443 is inserted into the flange plate 441 from the through hole 445 side and tightened into the screw hole 442 of the upper collar 411. As a result, the elastic deformation restraining body 416 is integrated. The flange plate 441 of the elastic deformation restraining body 416 is abutted against the lower surface of the upper collar 411, and the axes of the through holes 417b of the flange plate 441 and the screw holes 417d of the upper collar 411 are aligned. The upper collar 411 and the elastic deformation restraining body 416 are formed by inserting the screw portion 417e of the bolt shaft portion into the through hole 417b of the flange plate 441 of the elastic deformation restraining body 416 and further threading the screw portion 417e into the screw hole 417d of the upper collar 411. Are integrated and coupled by tightening. Of course, the assembly method of the support device 440 is not limited to the above example.

Next, the case where a high load (for example, a live load at the time of occurrence of a large earthquake) exceeding a normal range in which the bearing device 440 is damaged will be described with reference to FIG. Also in this support device 440, the coupling strength between the core member 421 and the lower collar 412 is higher than the coupling force between the upper collar 411 and the elastic deformation restraining body 416, and the elastic deformation restraining body 416 and the lifting prevention are prevented by the fixing member 424. The coupling strength with the piece 425 is also higher than the coupling strength between the upper collar 411 and the elastic deformation restraining body 416 described above. Further, the coupling strength between the elastic deformation restraining body 416 and the flange plate 441 is higher than the coupling strength between the upper collar 411 and the elastic deformation restraining body 416. For this reason, in the support device 440, when an uplift force or a horizontal force exceeding the normal use range in which the support device 440 is damaged is applied, the bolt shaft portion and the screw portion 417e are broken before other members are damaged. . As a result, the gap 419 between the lifting prevention piece 425 and the lower rod 412 before breakage becomes narrower or disappears due to the drop of the elastic deformation restraining body 416. Instead, the gap between the upper collar 411 and the elastic deformation restraining body 416 is reduced. A gap 420 is generated between the flange plate 441 and the flange plate 441. Therefore, the operator can determine whether the gaps 419 and 420 are between the elastic deformation restraint body 416 and the lower collar 412, between the flange plate 441 and the upper collar 411 of the elastic deformation restraint body 416, or which It is possible to determine that the bearing device 440 is broken when the gap 420 is on the upper collar 411 side. Even if the elastic deformation restraining body 416 falls on the lower collar 412, the elastic body 413 supported by the core member 421 can continue to support the upper collar 411.

As described above, the support device 440 is supported by the core material 421 even when the upper rod 411 and the elastic deformation restraining body 416 are broken due to an upward lifting force or a horizontal force exceeding the normal use range. The formed elastic body 413 can continue to support the upper collar 411. However, this state is provisional, and it is necessary to sequentially restore the bridge and the like including the damaged bearing device 440. When restoring bridges including the support device 440, it is more efficient from the viewpoint of recovery work and cost to restore the function by repairing the support device 440 than to replace the entire support device 440. There are cases.

Therefore, like the bearing device 430, the bearing device 440 can restore the function of the bearing device 440 without having to replace all of them when the bridge including the bearing device 440 is restored. ing. Specifically, when a bridge or the like including the support device 440 is restored, the lower surface of the upper rod 411 is flattened while the upper rod 411 remains attached to the upper structure 401, and screw holes The broken bolt shaft part and screw part 417e remaining on 417d are scraped off. Further, the bolt shaft portion and the screw portion 417e including the bolt head portion 417f are removed from the through hole 417b of the flange plate 441 of the elastic deformation restraining body 416. When the fixing bolt 417 is broken, the bolt shaft portion and the screw portion 417e including the bolt head portion 417f are dropped from the bolt concave portion 417a by its own weight. Further, even when it does not naturally fall from the bolt recess 417a, gravity acts and the bolt shaft portion and the screw portion 417e including the bolt head 417f can be easily removed from the bolt recess 417a.

As described above, the preliminary screw holes 426 are formed between the screw holes 417d of the upper collar 11. When the bearing device 440 is restored, the elastic deformation restraining body 416 starts from the state where the through hole 417b of the flange plate 441 of the elastic deformation restraining body 416 is aligned with the screw hole 417d of the upper collar 411 and the axis of the preliminary screw hole 426. Rotated to match. The elastic deformation restraining body 416 is lifted by a jack or the like, and the flange plate 441 is brought close to the lower surface of the upper collar 11. Thereafter, a screw portion 417e of a new fixing bolt 417 is inserted into the through hole 17b of the flange plate 441 of the elastic deformation restraining body 416, and further, a screw portion 417e is inserted into the spare screw hole 426 on the lower surface of the upper collar 411. Is tightened.

In the bearing device 440 as described above, the upper structure 401 can be repaired without being lifted with a jack or the like, like the bearing device 430. Specifically, the support device 440 rotates the elastic deformation restraining body 416 spaced apart from the upper collar 411, and the through hole 417 b of the flange plate 441 of the elastic deformation restraining body 416 and the preliminary screw hole 426 of the upper collar 411. These axes can be made to coincide with each other and connected with a new fixing bolt 417 to restore the function. That is, in the support device 440, when the bridge or the like is restored, the upper structure 401 is not lifted with a jack or the like, and it is not necessary to replace the support device 440 completely. The plate 441 can also be used as it is. Therefore, when repairing the support device 440, it is not necessary to lift the upper structure 401 with a jack or the like, and the working efficiency can be improved. In addition, with respect to the support device 440, the only new part is a fixing bolt, and the construction cost can be reduced. Further, the bearing device 440 is different from the bearing device 430 in which the elastic deformation restraining body 416 and the flange portion 431 are integrated, and the elastic deformation restraining body 416 and the flange plate 441 are separate from each other. Processing becomes easy.

[6. Description of Modification 3 of Bearing Device]
The support device 450 shown in FIGS. 76 to 78 is the same as the support device 410 shown in FIGS. 64, 65, 66 and 68 while fixing the elastic deformation restraining body 416 to the upper collar 411 with a fixing bolt 417 during repair. The elastic deformation restraining body 416 is fixed to the lower surface of the upper collar 411 with a fixing bolt 452 from the lower side.

More specifically, as shown in FIG. 76, a first bolt recess 417a is formed in the thickness direction on the outer periphery of the upper surface of the upper collar 411 of the support device 450, and a first through hole is formed at the bottom thereof. 417b is formed, and a first bolt seat portion 417c is formed around the first through hole 417b. Furthermore, a first screw hole 417d corresponding to the first through hole 417b is formed on the upper end surface of the elastic deformation restraining body 416. That is, the first screw portion 417e of the bolt shaft portion is screwed in parallel with the core member 421 (in the direction of vertical displacement) from above. The first bolt head 417f of the first fixing bolt 417 is accommodated without protruding from the first bolt recess 417a so as not to hit the upper structure 401 or the upper plate 403. The first fixing bolt 417 has such a strength that the bolt shaft portion and the first screw portion 417e are broken before other members are damaged when an excessive lifting force or horizontal force is applied. The flange portion 451 does not necessarily require the second bolt recess 452a, and it is sufficient that the second through hole 452b is penetrated so that the bolt can be inserted.

Further, a flange portion 451 is formed on the elastic deformation restraining body 416 so as to project outward from the upper end face. A second bolt recess 452a is formed on the lower surface of the flange portion 451 in the thickness direction, and a second through hole 452b is formed at the bottom thereof, and the second bolt is formed around the second through hole 452b. A seat 452c is formed. Further, a preliminary screw hole 452d corresponding to the second through hole 452b is formed in an annular shape on the lower surface of the upper collar 411. The second screw portion 452e of the second fixing bolt 452 is screwed into the preliminary screw hole 452d in parallel with the core member 421 from the lower side (in the direction of vertical displacement). The preliminary screw holes 452d are the same as the screw holes 417d and are formed in the same number as the screw holes 417d.

Describing the assembling method of the support device 450, the core member 421 is inserted into the elastic deformation restraining body 416, and the core member 421 is fixed to the screw hole 423 of the lower collar 412. Thereby, a pot portion for accommodating the elastic body 413 is formed in the elastic deformation restraining body 416 by the large diameter portion 422. Thereafter, the elastic body 413 is disposed on the large-diameter portion 422 of the core member 421 in the pot portion. The flange portion 451 of the elastic deformation restraining body 416 is abutted against the lower surface of the upper collar 411. As shown in FIG. 76, the upper collar 411 and the elastic deformation restraining body 416 are arranged such that the axes of the first through hole 417b and the first screw hole 417d coincide with each other, and the first screw portion 417e is inserted into the first through hole 417b. Furthermore, the first screw hole 417d is integrated and coupled to the first screw hole 417d by tightening. Of course, the method of assembling the support device 450 is not limited to the above example. Note that the second fixing bolt 452 is not inserted and screwed into the second through hole 452b and the auxiliary screw hole 452d on the outer peripheral side of the fixing portion of the first fixing bolt 417. Here, the second fixing bolt 452 is inserted and screwed at the time of repair. Therefore, at the time of assembly, the axes of the second through hole 452b and the auxiliary screw hole 452d may or may not coincide.

Next, a case where a high load (for example, a live load at the occurrence of a large earthquake) exceeding a normal range in which the support device 450 is damaged will be described with reference to FIG. FIG. 77 is a cross-sectional view in the case where a large horizontal force or upward lifting force that damages the support device 450 is applied. As described above, the coupling strength between the core member 421 and the lower collar 412 is higher than the coupling strength between the upper collar 411 and the elastic deformation restraining body 416 described above, and the elastic deformation restraining body 416 and the lifting prevention by the fixing member 424 are prevented. The coupling strength with the piece 425 is also higher than the coupling strength between the upper collar 411 and the elastic deformation restraining body 416 described above. For this reason, when the lifting force or horizontal force exceeding the normal use range in which the supporting device 450 is damaged is applied, the supporting device 450 has the bolt shaft portion and the first screw portion 417e before the other members are damaged. Break. Then, the elastic deformation restraining body 416 drops from the upper collar 411 side onto the lower collar 412 and approaches and / or contacts. As a result, the gap 419 between the lifting prevention piece 425 and the lower rod 412 before breakage becomes narrower or disappears due to the drop of the elastic deformation restraining body 416. Instead, the upper collar 411 and the elastic deformation restraining body 416 A gap 420 is generated between them. Therefore, the operator can determine whether the gaps 419 and 420 are between the elastic deformation restraint body 416 and the lower collar 412, between the elastic deformation restraint body 416 and the upper collar 411, or to what extent. Whether or not there is a gap is visually confirmed, and when there is a gap 420 on the upper collar 411 side, it can be determined that the support device 450 is broken. Even if the elastic deformation restraining body 416 falls on the lower collar 412, the elastic body 413 supported by the core member 421 can continue to support the upper collar 411.

As described above, the support device 450 is supported by the core member 421 even when the upper lid 411 and the elastic deformation restraining body 416 are broken due to an upward lifting force or a horizontal force exceeding the normal use range. The formed elastic body 413 can continue to support the upper collar 411. However, this state is provisional, and it is necessary to recover the bridge including the damaged support device 450 in order. When restoring a bridge or the like that includes the support device 450, it is more efficient from the viewpoint of recovery work and cost to restore the function by repairing the support device 450 than to replace the entire support device 450. There are cases.

Therefore, in this bearing device 450, it is possible to restore the function of the bearing device 450 without having to replace all of the bridges and the like including the bearing device 450 at the time of restoration work. Specifically, when a bridge or the like including the support device 450 is restored, as shown in FIG. 78, the lower surface of the upper rod 411 is flattened while the upper rod 411 remains attached to the upper structure 1. The broken bolt shaft portion and the first screw portion 417e remaining in the first screw hole 417d are scraped off. Thereafter, the elastic deformation restraining body 416 makes the axes of the second through hole 452b of the flange portion 451 of the elastic deformation restraining body 416 and the auxiliary screw hole 452d of the upper collar 411 coincide. The elastic deformation restraining body 416 is lifted by a jack or the like, and the flange portion 451 is brought close to the lower surface of the upper collar 411. Thereafter, a second screw portion 452e of a new second fixing bolt 452 is inserted into the second through hole 452b of the flange portion 451 of the elastic deformation restraining body 416, and further, a preliminary screw hole 452d on the lower surface of the upper collar 411. The second screw portion 452e is tightened.

With the support device 450 as described above, the upper structure 401 can be repaired without lifting it with a jack or the like when the bridge is restored. Specifically, the support device 450 matches the axes of the second through hole 452b of the flange portion 451 of the elastic deformation restraining body 416 spaced from the upper collar 411 and the preliminary screw hole 452d of the upper collar 411, and newly By connecting with the fixing bolt 452, the function can be recovered. That is, in the support device 450, when the bridge is restored, the upper structure 401 is not lifted with a jack or the like, and it is not necessary to replace the entire support device 450, and the upper collar 411 and the elastic deformation restraining body 416 are left as they are. Can be used. Therefore, when repairing the support device 450, it is not necessary to lift the upper structure 401 with a jack or the like, and work efficiency can be improved. Further, with respect to the support device 450, the only new part is the second fixing bolt 452, so that the construction cost can be reduced. In this support device 450, the flange portion 451 of the elastic deformation restraining body 416 may be integrated with the elastic deformation restraining body 416. However, as in the examples of FIGS. A separate body may be fixed to the elastic deformation restraining body 416 using a fixing bolt.

[7. Other variations]
In the above description, the bridge support device has been described as the support device of the present invention. However, the present invention is not limited to the bridge support device, but as a support device for vibration control and seismic isolation of various structures. It can be adopted. Further, the support structure of the support device is not limited to the above example. Further, the fixing method of the upper collar 411 and the lifting prevention portion may be welding, bonding with an adhesive, or the like, in addition to using the fixing bolt 417 described above.

(Fifth embodiment)
Hereinafter, the support device according to the fifth embodiment will be described in the following order with reference to the drawings.

1. 1. Description of bearing structure 2. Description of bearing device 3. Description of elastic body and elastic deformation restraint body 4. Explanation of operation of bearing device 5. Description of sliding member 6. Explanation of guide member Function and effect 8. 8. Description of modification 1 of support structure 9. Description of modification 2 of support structure 10. Description of modification 3 of support structure 11. Explanation of modification 4 of bearing structure 12. Description of modification 5 of support structure 14. Description of modification 6 of support structure 15. Description of modification 7 of bearing structure 15. Explanation of modification 8 of bearing structure 16. Description of modification 9 of bearing structure 18. Description of modification 10 of bearing structure Other variations

[1. Description of bearing structure]
As shown in FIG. 79, a support structure 501 to which the present invention is applied includes a support device 510 disposed between an upper structure 502 such as a bridge girder and a lower structure 503 such as a pier or an abutment, and the support device 510. And a sliding member 511 that slides on the supporting device 510 and a guide member 512 that slidably supports the supporting device 510 and guides the sliding device 510 during sliding. Yes.

[2. Description of bearing device]
As shown in FIG. 79, the support device 510 is mounted between an upper structure 502 such as a bridge girder and a lower structure 503 such as a bridge pier or an abutment to support various loads such as a horizontal load, a vertical load, and a rotational load. At the same time, it is a bridge support device that supports and absorbs and disperses vibrations, vibrations and stresses caused by earthquakes, winds, dynamic or static traffic loads, and the like. Of course, the support device 510 of the present invention is not limited to application to bridges, and can be applied as a support device for appropriate structures such as buildings, buildings, and cultural assets. In the support device 510, an elastic body 522 serving as a support body is interposed between an upper collar 520 serving as a first rigid body and a lower collar 521 serving as a second rigid body. The elastic body 522 is surrounded by an elastic deformation restraining body 523 fixed to the upper collar 520 or the lower collar 521 (here, the upper collar 520).

The upper arm 520 is made of metal, ceramics, or a rigid material such as hard resin or reinforced resin such as FRP. However, the upper collar 520 is not limited to these materials, like the upper collars 11, 111, 211, and 411 described above. The shape is preferably a square or a circle, but is not limited to these shapes. Such an upper collar 520 is slidably supported on the upper structure 502 by a guide member 512 with a sliding member 511 interposed therebetween.

In FIG. 79, the upper rod 520 is formed so that the length in the direction perpendicular to the bridge axis (width direction) is substantially the same as the length in the width direction of the upper structure 502, but this is not limitative. Instead, it may be formed such that the length in the width direction is shorter than the length in the width direction of the upper structure 502 or may be formed to be longer.

The lower rod 521 is made of a rigid material such as metal, ceramics, hard resin, or reinforced resin such as FRP, like the upper rod 520. However, the lower rod 520 is not limited to these materials, like the upper rods 12, 112, 212, 412 and the like described below. The shape is preferably a square or a circle, but is not limited to these shapes. However, the planar shape and the like of the lower eyelid 521 do not necessarily match the upper eyelid 520, but the size of each part, the shape and position of the convex portion and the recessed portion, etc. are set by the lower eyelid 521 and the upper eyelid 520. Must be aligned with each other.

Furthermore, the lower rod 521 is fixed to the lower structure 3 by a fixing member 504 such as an anchor bolt or a nut. At this time, the lower rod 521 may be directly fixed to the lower structure 503. Here, however, the lower plate 521 is formed in a lower portion by using a lower plate 524 having a plate shape larger in area than the lower rod 521. It is indirectly fixed to the structure 503. The method for fixing the lower collar 521 to the lower structure 503 is not limited to these examples. Note that the direct or indirect fixing of the lower rod 521 is preferably a detachable method, and fastening with anchor bolts, nuts, or the like is one example.

[3. Explanation of elastic body and elastic deformation restraint body]
The elastic body 522 used here is, for example, an elastic body having a laminated structure in which an elastic layer 522a and a reinforcing plate 522b are laminated, similarly to the elastic body described above. The elastic body 522 has a reinforcing plate 522b provided therein, a plurality of elastic layers 522a, and the reinforcing plate 522b and the elastic layer 522a are bonded to each other by vulcanization bonding. In addition, the upper and lower surfaces of the elastic body 22 are reinforced by vulcanizing and bonding the upper plate 522c and the lower plate 522d.

Here, the elastic layer 522a is formed using natural rubber, synthetic rubber, thermoplastic elastomer or thermosetting elastomer. In addition, about the material, since it is the same as that of the elastic body of 1st thru | or 4th embodiment, it abbreviate | omits for details. In addition, the elastic body 513 used here may be a single elastic layer (single layer) or a laminated type with a reinforcing plate 513b interposed. Further, the reinforcing plate 522b, the upper plate 522c, and the lower plate 522d are made of a rigid steel material such as an iron plate. In the laminated elastic body 522 as described above, when a load is applied, the side surface of the elastic layer 522a between the reinforcing plates 522b which are free side surfaces bulge slightly to the side according to the magnitude of the load. It has the characteristic to do.

Around the elastic body 522, a convex portion 525 and a concave portion 526 are provided in the circumferential direction.

The elastic body 522 as described above is disposed and supported by the large-diameter portion 528 of the core member 527 fixed to the lower collar 521. The elastic body 522 may be bonded to the upper collar 520 and the lower collar 521 to increase the bearing pressure, but by not bonding, it is possible to achieve good rotation followability.

In the above example, the case where the elastic body 522 is a laminated type has been described. However, the elastic body 522 according to the present invention is provided with a rigid reinforcing plate such as an iron plate inside while providing the convex portion 525 and the concave portion 526. The elastic layer which is not provided may be one (single layer). The size of the elastic body 522 may be a size that fits into the elastic deformation restraining body 523 when inserted into the elastic deformation restraining body 523. And a gap between the elastic body 522 and the side surface of the elastic body 522 may be provided. In the following description, the laminated elastic body 522 having the convex portion 525 and the concave portion 526 shown in FIG. 79 will be described as an example.

The elastic body 522 configured as described above is surrounded by an elastic deformation restraining body 523 as shown in FIG. The elastic deformation restraining body 523 is a cylindrical body having an inner diameter slightly larger than the outer diameter of the elastic body 522, and is fixed to either the upper collar 520 or the lower collar 521, or the upper collar 520 in FIG. For example, the elastic deformation restraining body 523 is fixed to the upper collar 520 by a fixing member 529 such as a screw fastening body. In addition, the elastic deformation restraining body 523 may be fixed to either the upper collar 520 or the lower collar 521 by welding or a conventionally known fixing method.

Furthermore, a core material 527 is fixed to the lower rod 521, which serves as a lifting prevention portion and a horizontal displacement prevention portion. Specifically, the core material 527 has a lower end fixed to a lower collar 521 serving as a base plate. The core material 527 is made of a metallic bolt-shaped member having a head portion that becomes the large-diameter portion 528, and the large-diameter portion 528 that is the tip portion is disposed in the elastic deformation restraining body 523 so that the elastic body 522 is substantially sealed. It functions like a piston that is constrained by the state and increases the bearing pressure. The core material 527 is fixed by being screwed into the screw hole 530 of the lower collar 521. The structure for fixing the core material 527 to the lower collar 521 is not limited to this. For example, a fixing bolt inserted from the lower surface of the lower collar 521 is screwed into the screw hole of the core material 527 and fixed. You may make it do. The large-diameter portion 528 may also be fixed by, for example, screwing a screw portion provided at the tip of the core material 527 into a screw hole of the large-diameter portion of another member.

The large-diameter portion 528 integrated with the core material 527 engages with the anti-lifting piece 532 fixed to the lower surface of the elastic deformation restraining body 523 by a fixing member 531 such as a screw. The large-diameter portion 528 of the core member 527 integral with the lower rod 521 serves as a lifting prevention portion, and when the lifting force is applied to the upper collar 520, the upper lifting prevention piece 532 on the upper collar 520 side is locked. The upper 520 and the lower 521 are prevented from separating. That is, the large-diameter portion 528 of the core material 527 is disposed in the elastic deformation restraining body 523, thereby allowing the elastic body 522 to be displaced in the vertical direction, and serving as a horizontal displacement prevention portion. In 527, the displacement in the horizontal direction is restricted. Thereby, it is possible to prevent the upper collar 520 and the lower collar 521 from being relatively displaced in the horizontal direction. Further, a gap is provided between the lifting prevention piece 532 and the lower rod 521, and when the upper rod 520 moves to the lower rod 521 side by being displaced vertically downward, the lifting prevention piece 532 is lowered. It does not hit the heel 521. The lifting prevention piece 532 may be fixed to the elastic deformation restraining body 523 by welding, a conventionally known fixing method, or the like, in addition to using the fixing member 531.

That is, the support device 10 is provided with an elastic deformation restraining body 523 on the upper collar 20 side and a core member 527 having a large diameter portion 528 provided on the lower collar 521 side and supporting the elastic body 522. The elastic body 522 has a function of suppressing the shear deformation of the elastic body 522 and a role of a piston that restrains the elastic body 522 in a substantially hermetically sealed state to increase the bearing pressure. The flange 520 and the side surface are surrounded by the elastic deformation restraining body 523 and disposed in a semi-sealed space. The bearing device 510 is a semi-sealed rubber bearing, and can support a high load with a small bearing area while allowing vertical deflection required for rotation in a vertical plane.

Describing the assembling method of the support device 510, the core material 527 is inserted into the elastic deformation restraining body 523, and the core material 527 is fixed to the screw hole 530 of the lower rod 521. Thereby, a pot portion for accommodating the elastic body 522 is formed in the elastic deformation restraining body 523 by the large diameter portion 528. Thereafter, the elastic body 522 is disposed on the core material 527 in the pot portion. Thereafter, the upper collar 520 is coupled to the elastic deformation restraining body 523 by the fixing member 529. Of course, the method of assembling the support device 510 is not limited to the above example.

Note that a lubricant may be filled between the elastic body 522 and the elastic deformation restraining body 523 so as to reduce friction so that the elastic body 522 can be smoothly vertically displaced within the elastic deformation restraining body 523. . Alternatively, the constraining surface 523a of the elastic deformation restraining body 523 may be mirror-finished to reduce friction so that the elastic body 522 can be smoothly vertically displaced within the elastic deformation restraining body 523.

Here, the relationship between the sizes of the elastic body 522 and the elastic deformation restraining body 523 will be described. In the example of FIG. 79, the support device 510 is installed between the upper structure 502 and the lower structure 503, and the support device. In a state where the elastic body 522 is deformed by the load of the upper structure 502 with respect to 510 (for example, a state where a dead load is applied), the convex portion 525 on the side surface of the elastic body 522 is restrained on the inner peripheral surface of the elastic deformation restraining body 523. It is configured to be in contact with the surface 523a. That is, before being installed between the upper structure 502 and the lower structure 503, the convex portion 525 on the side surface of the elastic body 522 is not in contact with the restraining surface 523 a on the inner peripheral surface of the elastic deformation restraining body 523. In this state, a gap is provided, and when it is installed between the upper structure 502 and the lower structure 503, the convex portion on the side surface of the elastic body 522 is caused by the dead load of the upper structure 502. 525 comes into contact with the restraining surface 523a on the inner peripheral surface of the elastic deformation restraining body 523. When a dead load is loaded, the convex portion 525 on the side surface of the elastic body 522 is not in contact with the restraining surface 523a on the inner peripheral surface of the elastic deformation restraining body 523, and a high load exceeding the normal use range (for example, a large vehicle, for example) , The convex portion 525 on the side surface of the elastic body 522 comes into contact with the restraining surface 523a on the inner peripheral surface of the elastic deformation restraining body 523, and the restraining surface 523a is input by further input of a high load. The protruding portion 525 and the bulging and deforming portion of the recessed portion 526 may be pressed against each other. In addition, when there are a convex portion 525 and a concave portion 526 in the height direction on the side surface of the elastic body 522, the elastic body 522 can be easily stored in the pot portion in the elastic deformation restraining body 523.

[4. Explanation of operation of bearing device]
In the above-described support device 510, when installed between the upper structure 502 and the lower structure 503, as shown in FIG. 79, the elastic body 522 has a load in a normal use range (for example, dead load or (Dead load + live load during vehicle travel) is compressed, and the convex portion 525 of the elastic body 522 is positioned near or in contact with the restraining surface 523a of the elastic deformation restraining body 523 surrounding the elastic body 522. In the support device 510, the elastic body 522 is elastically deformed according to the magnitude of the vertical load, and the elastic deformation is restrained while the side surface convex portion 525 is deformed so as to fill the gap formed by the concave portion 526. The body 523 is pressed against the restraining surface 523a. That is, the displacement amount of the elastic body 522 is limited by the elastic deformation restraining body 523.

Further, the relationship between the convex portions 525 and the concave portions 526 of the elastic body 522 and the restraining surface 523a of the elastic deformation restraining body 523 will be described. The laminated elastic body 522 has the convex portion 525 at the position of the elastic layer 522a on the free side surface. The concave portion 526 is provided at the position of the reinforcing plate 522b. In this case, when a load is applied, the convex portion 525 is strongly pressed against the restraining surface 523a of the elastic deformation restraining body 523 before the concave portion 526 due to the free side surface of the elastic layer 522a bulging. In the laminated elastic body 522, a convex portion 525 is provided on the elastic layer 522a at the position between the reinforcing plates with the largest bulging amount in the past, and the bulging around the convex portion 525 is made by the restraining surface 523a of the elastic deformation restraining body 523. Since the protruding amount is constrained, local stress on the elastic layer 522a around the internal reinforcing plate 522b is relieved even when a high load is input. Further, the internal reinforcing plate 522b is not easily crushed by a high load, and the reinforcing plate 522b can be made thin, and the entire thickness of the support device 510 can be realized. The position of the reinforcing plate 522b may be the convex portion 525, and the position of the elastic layer 522a may be the concave portion 526. In this case, since the free side surface of the elastic layer 522a which is a concave portion slightly bulges, the convex portion 525 and the concave portion 526 are in contact with the restraining surface 523a of the elastic deformation restraining body 523 in the same manner and are evenly distributed. It can be pressed.

The support device 510 is provided with an elastic deformation restraining body 523 on the upper collar 520 side and a core member 527 having a large-diameter portion 528 that is provided on the lower collar 521 side and supports the elastic body 522. The function of the piston in which the large-diameter portion 528 suppresses the shear deformation of the elastic body 522 disposed between the upper rod 520 and the lower rod 521 and the piston that restrains the elastic body 522 in a substantially sealed state to increase the bearing pressure. The elastic body 522 supported by the lower collar 521 is surrounded by the upper collar 520 and the side surface by the elastic deformation restraining body 523, and is disposed in a semi-sealed space. It becomes a support, and it is possible to support a high load with a small support area while allowing the vertical deflection required for rotation in the vertical plane.

[5. Explanation of sliding member]
As shown in FIG. 79, the sliding member 511 is disposed between the upper structure 502 and the upper collar 520. The sliding member 511 is, for example, a plate having a surface with a low coefficient of friction made of stainless steel or polytetrafluoroethylene (PTFE) which is a kind of fluorocarbon resin, and the upper surface 520a of the upper collar 520 and / or It is fixed to the lower surface 502 a of the upper structure 502. In FIG. 79, the sliding member 511 is disposed on the entire upper surface 520 a of the upper collar 520. As a result, when a horizontal force greater than the maximum static frictional force between the upper structure 502 and the sliding member 511 is generated, the support device 510 slides on the upper structure 502 with the sliding member 511. Thus, it is possible to prevent the horizontal force from being input. Therefore, the support device 510 can absorb a large relative displacement between the upper structure 502 and the lower structure 503. At this time, the upper structure 502 may disperse the horizontal force with a predetermined resistance by a damper or a stopper provided in the lower structure 503. That is, the support device 510 can be used as a movable rubber support device by the sliding member 511. Furthermore, the sliding member 511 is not limited to being disposed on the entire upper surface 520a of the upper collar 520, and may be disposed on a part thereof.

Furthermore, an upper plate 533 having a surface with a lower friction coefficient than that of the upper structure 2 such as a stainless steel plate is fixed to the lower surface 502a of the upper structure 502. As shown in FIG. 79, the upper plate 533 may be disposed on the entire lower surface 502a of the upper structure 502 or may be disposed on a part thereof. Further, a lubricant is applied to at least one of the sliding member 511 and the upper plate 533, and the friction between the sliding member 511 (upper bar 520) and the upper plate 533 (upper structure 502) is reduced. You may make it plan.

The lower surface 502 a of the upper structure 502 is mirror-finished instead of being fixed to the upper plate 533, and further, low friction between the sliding member 511 (upper bar 520) and the upper structure 502 is applied. You may make it plan. Further, in this case, a lubricant is applied to at least one of the sliding member 511 and the upper structure 502 to further reduce the friction between the sliding member 511 (upper bar 520) and the upper structure 502. You may make it show.

Furthermore, the sliding member 511 is not limited to being fixed to the upper surface 520a of the upper collar 520, but may be fixed to the lower surface 502a of the upper structure 502. In this case, the sliding member 511 may be disposed on the entire lower surface 502a of the upper structure 502 or may be disposed on a part thereof. In this case, the upper surface 520a of the upper collar 520 may be mirror-finished to further reduce the friction between the sliding member 511 (upper structure 502) and the upper collar 520. Further, a lubricant is applied to at least one of the sliding member 511 and the upper flange 520 so that the friction between the sliding member 511 (the upper structure 502) and the upper flange 520 is reduced. Also good.

Further, when the sliding member 511 is fixed to the lower surface 502 a of the upper structure 502, the sliding member 511 as shown in FIG. 79 is fixed to the upper surface 520 a of the upper flange 520. Similarly to the case, the upper plate 533 having a surface with a lower coefficient of friction than the upper collar 520 such as a stainless steel plate may be fixed. At this time, the upper plate 533 is preferably disposed over the entire upper surface 520a of the upper collar 520, but may be disposed in part. Further, a lubricant is applied to at least one of the sliding member 511 and the upper plate 533, and the friction between the sliding member 511 (upper structure 502) and the upper plate 533 (upper bar 520) is reduced. You may make it plan.

Further, the sliding member 511 may be fixed to the lower surface 502a of the upper structure 502 and the upper surface 520a of the upper flange 520, and further, the friction between the upper structure 502 and the upper flange 520 may be reduced. . Further, the sliding member 511 is not provided on the lower surface 502a of the upper structure and the upper surface 520a of the upper flange 520, but is mirrored on the lower surface 502a of the upper structure and / or the upper surface 520a of the upper flange 520 instead of the sliding member 511. Processing may be performed to reduce friction between the upper structure 502 and the upper collar 520. Furthermore, a lubricant may be applied to at least one of the lower surface 502a and the upper collar 520 of the upper structure so that the friction between the upper structure 502 and the upper collar 520 can be reduced.

[6. Explanation of guide member]
As shown in FIGS. 79 and 80, the guide member 512 is a long member having a substantially L-shaped cross section in which an upper end portion 512a is formed with an engaging portion 534 that protrudes inward. Here, the guide member 512 is provided such that the length in the bridge axis direction (length direction) is substantially the same as the length in the length direction of the upper rod 520. For example, such a guide member 512 is disposed so that a pair of engaging portions 534 face each other in a direction perpendicular to the bridge axis along the bridge axis direction of the upper rod 520, and the engaging portions 534 are arranged in the upper structure 502. It is being fixed to the side part 520c of the upper collar 520 by the fixing members 535, such as a screw fastening body, so that it may engage with the upper surface 502b. The guide member 512 may be provided so that the length in the length direction is shorter than the length in the length direction of the upper collar 520. In addition, the guide member 512 may be fixed to the side surface portion 520c of the upper collar 520 by welding or a conventionally known fixing method.

Such a guide member 512 is fixed to the side surface portion 520c of the upper collar 520, the side surface portion 512c is brought into contact with the side surface of the upper structure 502, and the engaging portion 534 is engaged with the upper surface 502b of the upper structure 502. Thus, the upper rod 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and when the upper rod 520 is slid in the bridge axis direction by the sliding member 511, the upper rod 520 is guided. The upper collar 520 is prevented from being separated from the upper structure 502. That is, the support device 510 is attached to the upper structure 502 by the guide member 512 so as to be a movable rubber support device.

As shown in FIG. 81, the upper flange 520 is formed on a pair of stopper members 537 and 537 disposed on the lower surface 502a of the upper structure 502 with a predetermined distance apart in the bridge axis direction centering on the support device 510. The movement in the bridge axis direction may be regulated by abutting. For example, the stopper members 537 and 537 are fixed to the lower surface 502a of the upper structure 502 by a fixing member 536 such as a screw fastening body. In addition, the stopper members 537 and 537 may be fixed to the lower surface 502a of the upper structure 502 by welding or a conventionally known fixing method.

Further, the stopper member 537 may be fixed to the upper surface 502b of the upper structure 502, and the engaging portion 534 may be brought into contact therewith to restrict the movement of the upper rod 520 in the bridge axis direction. Further, the stopper member 537 is fixed to the upper surface 502b and the lower surface 502a of the upper structure 502, and the upper rod 520 and the engaging portion 534 are brought into contact with each other, thereby restricting the movement of the upper rod 520 in the bridge axis direction. You may do it. Furthermore, the stopper member 537 is not limited to the block member as shown in FIG. 81, and the upper collar 520 and / or the engaging portion 534 are brought into contact with each other, so Any device may be used as long as it restricts movement, and for example, a bolt or the like may be used.

[7. Effect]
As described above, in the support structure 501 to which the present invention is applied, the sliding member 511 disposed between the upper structure 502 and the upper collar 520 of the support device 510 slides on the support device 510. The guide member 512 provided on the side surface portion 520c of the flange 520 engages with the upper surface 502b of the upper structure 2 to support the upper flange 520 slidably with respect to the upper structure 502, and the upper flange 520 Since the guide is performed when sliding with respect to the upper structure 502, the support device 510 can be used as a movable elastic support device. Therefore, in the support structure 501 to which the present invention is applied, the elastic body 522 undergoes shear deformation while a horizontal force equal to or less than the maximum static frictional force between the support device 510 and the sliding member 511 is applied, and thus the support device. When a horizontal force greater than the maximum static frictional force between 510 and the sliding member 511 is generated, the support device 510 can slide the sliding member 511 and prevent any further horizontal force from acting. A large relative displacement of the upper eyelid 520 and the lower eyelid 521 of the device 510 can be absorbed.

Furthermore, in the support structure 501 to which the present invention is applied, since the guide member 512 is fixed to the side surface portion 520c of the upper collar 520, the support device 510 is disposed between the upper structure 502 and the lower structure 503. After that, the guide member 512 can be attached to the side surface portion 520c of the upper collar 520. That is, the guide member 512 can be retrofitted. Therefore, the support structure 501 to which the present invention is applied is a construction of the upper structure 2 and the lower structure 3 so that the support apparatus 510, which is a fixed support apparatus, functions as a movable rubber support apparatus at the construction site. Can be easily installed in between.

[8. Description of modification 1 of bearing structure]
As shown in FIG. 82, in the support structure 610 of Modification 1, the engaging portion 534 of the guide member 512 is provided separately from the main body portion 512e of the guide member 512. The engaging portion 534 is fixed to the main body portion 512e of the guide member 512 by a fixing member 538 such as a screw fastening body, for example.

Even in such a support structure 610, the support device 510 can be easily attached to the upper structure 502 so as to be a movable rubber support device by the guide member 512, and by the sliding member 511 and the guide member 512. The bearing device 510 can be used as a movable rubber bearing device. Furthermore, in such a support structure 610, the guide member 512 can be manufactured at a lower cost than that in which the engaging portion 534 is integrated.

In addition, the engaging portion 534 may be fixed to the main body portion 512e of the guide member 512 by other known fixing methods such as welding and bolts and nuts.

[9. Description of modification 2 of bearing structure]
The support structure 620 of the second modification has a configuration as shown in FIG. In the support device 510 of the support structure 620, a through hole 621 penetrating the front and back surfaces of the upper collar 520 is formed. A core material 622 is inserted into the through hole 621 from the upper surface side of the upper collar 520, and the amount of displacement of the upper collar 520 vertically downward without the tip of the core material 622 protruding from the upper surface of the upper collar 520 is taken into consideration. Thus, the tip portion is accommodated so as to be lowered one step further. A lifting prevention piece 621a is formed in a flange shape at the opening end of the through hole 621. Further, the elastic deformation restraining body 523 is fixed to the outer peripheral portion of the upper collar 520 with the fixing member 529 as in the above example. The tip of the elastic deformation restraining body 523 on the lower collar 521 side is located outside the outer peripheral portion of the lower collar 521 and is not fixed. Thereby, when the vertical load is input, the upper rod 520 can be displaced vertically downward while compressing the elastic body 522. That is, the tip of the elastic deformation restraining body 523 on the lower collar 521 side is located outside the outer periphery of the lower collar 521, so that the elastic body 522 disposed between the upper collar 520 and the lower collar 521 is sheared. A function of suppressing deformation and a role of a cylinder that restrains the elastic body 522 in a substantially hermetically sealed state to increase the bearing pressure are realized. Thus, the elastic body 522 supported by the lower collar 521 is disposed in a substantially sealed space with the upper surface surrounded by the upper collar 520 and the side surface by the elastic deformation restraining body 523. Therefore, the support device 510 of the support structure 620 is a substantially sealed rubber support, and can support a high load with a small support area.

The core member 622 inserted into the through hole 621 is made of a metallic bolt-shaped member having a head portion that becomes the large diameter portion 623, and the large diameter portion 623 that is the tip portion is located inside the through hole 621 of the upper collar 520. It is set to a size that can be accommodated. The core member 622 is inserted into the insertion hole 624 formed in the substantially central portion of the elastic body 522 from the through hole 621 of the upper collar 520, and further, the screw formed on the support surface side of the elastic body 522 of the lower collar 521. It is fixed by being screwed into the hole 625. When the core member 622 is inserted from the through hole 621 and fixed to the screw hole 625, the large diameter portion 623 is accommodated in the through hole 621 so that the tip portion is lowered by one step. The core member 622 is fixed to the lower rod 521 so that when the upper rod 520 and the lower rod 521 are about to be displaced relatively in the horizontal direction, the core member 622 becomes the tip surface or the through hole of the lifting prevention piece 621a. The displacement of the upper collar 520 is limited by the core member 622 that abuts the side surface of the 621 and is fixed to the lower collar 521. That is, the core member 622 functions as a horizontal displacement prevention unit, and prevents the upper collar 520 and the lower collar 521 from being excessively displaced in the horizontal direction. Further, the large-diameter portion 623 of the core member 622 is larger than the opening diameter of the lifting prevention piece 621a of the through hole 621, and engages with the lifting prevention piece 621a. When the lifting force is applied to the upper collar 520, the core material 622 is engaged with the upper lifting prevention piece 621 a on the large-diameter portion 623 of the core material 622 fixed to the lower collar 521. This prevents the 521 from deviating. That is, the large-diameter portion 623 functions also as a lifting prevention portion.

Further, in the support structure 620, as in the support structure 501 shown in FIG. 79, the guide member 512 is fixed to the side surface portion 520c of the upper collar 520, and the side surface portion 512c is brought into contact with the side surface portion of the upper structure 502. By engaging the joint portion 534 with the upper surface 502 b of the upper structure 502, the upper collar 520 is slidably supported with respect to the upper structure 502 in the bridge axis direction, and the upper collar 520 is supported by the sliding member 511. It is possible to guide the upper rod 520 when sliding in the direction of the bridge axis and prevent the upper rod 520 from being separated from the upper structure 2. Thereby, even in such a support structure 620, the support device 510 can be easily attached to the upper structure 502 so as to be a movable rubber support device by the guide member 512, and the sliding member 511 and the guide With the member 512, the support device 510 can be used as a movable rubber support device.

Note that, in the support structure 620, the engaging portion 534 may be provided separately from the main body portion 512e of the guide member 512, similarly to the support structure 610 shown in FIG.

[10. Description of modification 3 of bearing structure]
In the above example, as shown in FIG. 80, the side surface portions 520c and 520c of the upper rod 520 have a length in the bridge axis direction (length direction) that is substantially the same as the length of the upper rod 520 in the length direction. One guide member 512 is fixed, but as shown in FIG. 84, in the support structure 630 of the third modification, the length in the length direction is set to the side surface portions 520c and 520c of the upper rod 520. A plurality of guide members 512 shorter than the length in the length direction are fixed.

For example, in the support structure 630, as shown in FIG. 84, the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is the length of each side surface portion 520c, 520c of the upper collar 520. It is fixed at two places, one end and the other end in the vertical direction, and is fixed to a total of four places on both side surfaces 520c and 520c of the upper collar 520. Note that the number and fixing positions of the guide members 512 are not limited to this, and can be changed as appropriate depending on the size and weight of the support device 510.

Even such a guide member 512 is fixed to the side surface portion 520c of the upper collar 520, the side surface portion 512c abuts on the side surface portion of the upper structure 502, and the engaging portion 534 is the upper surface 502b of the upper structure 502. Is engaged with the upper structure 502 so as to be slidable in the direction of the bridge axis, and when the upper side 520 is slid by the sliding member 511 in the direction of the bridge axis, 520 can be guided to prevent the upper collar 520 from being separated from the upper structure 502. Further, such a guide member 512 can be reduced in weight as compared to the length in the length direction of the upper collar 520 as shown in FIG. Can be manufactured.

Accordingly, even in such a support structure 630, the support device 510 can be easily attached to the upper structure 502 so as to be a movable rubber support device by the guide member 512, and the sliding member 511 and the guide member With 512, the bearing device 510 can be used as a movable rubber bearing device.

Note that, in the support structure 630, the engaging portion 534 may be provided separately from the main body portion 512e of the guide member 512, similarly to the support structure 610 shown in FIG.

[11. Description of modification 4 of bearing structure]
As shown in FIG. 85, in the support structure 640 of Modification 4, the spacer plate 540 is fixed to the upper structure 502, and the guide fixed to the side surface portion 540a of the spacer plate 540 is fixed to the side surface portion 520c of the upper collar 520. A member 512 is provided to be engaged.

Specifically, the spacer plate 540 is a thin plate having a substantially rectangular shape in plan view and having a length in the direction perpendicular to the bridge axis (width direction) substantially the same as the length in the width direction of the upper rod 520. Is fixed to the lower surface 502a of the steel plate by welding or a screw fastening body. Such a spacer plate 540 is disposed on the entire surface or a part of the lower surface 502 a of the upper structure 502. Further, an upper plate 533 is fixed to the lower surface of the spacer plate 540. At this time, the upper plate 533 is preferably disposed on the entire lower surface of the spacer plate 540, but may be disposed on a part thereof. Further, on the side surface portion 540a of the spacer plate 540, an engaging groove portion 541 made of serrated irregularities extending in the bridge axis direction (length direction) is formed.

The guide member 512 is a saw tooth extending in the length direction so as to correspond to the engaging groove 541 of the spacer plate 540 instead of the engaging portion 534 on one side surface portion 512c facing the upper collar 520. Engagement ridges 512g made of a concavo-convex shape are formed. Such a guide member 512 is fixed to the side surface portion 520c of the upper collar 520 in the same manner as the support structure 501 shown in FIG. 79, and the engaging protrusions 512g are engaged with the engaging grooves 541 of the spacer plate 540. As a result, the upper rod 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and when the upper rod 520 is slid by the sliding member 511 in the bridge axis direction, the upper rod 520 is moved. Guide and prevent the upper collar 520 from separating from the upper structure 2.

Therefore, even if the engaging convex portion 512g of the guide member 512 is in the supporting structure 640 engaged with the engaging concave portion 541 of the spacer plate 540, the supporting device 510 is movable by the guide member 512. It can be easily attached to the upper structure 502 so as to be a rubber bearing device, and the bearing device 510 can be used as a movable rubber bearing device by the sliding member 511 and the guide member 512.

In addition, the support structure 640 may be configured such that the engagement protrusions are formed on the side surface part 540 a of the spacer plate 540 and the engagement protrusions are formed on the guide member 512.

85, the support structure 640 is not limited to the upper plate 533 being fixed to the lower surface of the spacer plate 540 and the sliding member 511 being fixed to the upper surface 520a of the upper collar 520. The sliding member 511 may be fixed to the lower surface of the spacer plate 540, and the upper plate 533 may be fixed to the upper surface 520a of the upper collar 520. Further, at least one of the sliding member 511 and the upper plate 533 may be coated with a lubricant to reduce friction.

Further, in the support structure 640, the upper plate 533 is not provided on the lower surface of the spacer plate 540 and the upper surface 520a of the upper collar 520, but instead of the upper plate 533, these surfaces are mirror-finished to reduce friction. Anyway. Further, in this case, a lubricant is applied to at least one of the lower surface of the sliding member 511 and the spacer plate 540 or at least one of the upper surface 520a of the sliding member 511 and the upper collar 520 to reduce friction. You may do it.

Furthermore, the support structure 640 may be provided with a sliding member 511 on the lower surface of the spacer plate 540 and the upper surface 520a of the upper collar 520 to reduce friction. Further, the support structure 640 reduces the friction by providing a mirror finish on these surfaces instead of the sliding member 511 without providing the sliding member 511 on the lower surface of the spacer plate 540 and the upper surface 520a of the upper collar 520. You may make it plan. Further, a lubricant may be applied to at least one of the lower surface of the spacer plate 540 and the upper surface 520a of the upper collar 20 to reduce friction.

84, the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is the same as the bearing structure 630 shown in FIG. A plurality of each may be fixed to 520c.

[12. Description of Modification 5 of Bearing Structure]
In the above example, as shown in FIG. 79, for example, the case where the length in the direction perpendicular to the bridge axis (width direction) of the upper structure 502 and the upper rod 520 is the same has been described as an example. However, as shown in FIG. 86, the present invention can be applied even when the length of the upper collar 520 in the width direction is shorter than the length of the upper structure 502 in the width direction.

Specifically, as shown in FIG. 86, in the support structure 650 of Modification 5, the guide member 512 is fixed to the side surface portion 520c of the upper collar 520 via the spacer 550. The spacer 550 is, for example, a prismatic long member whose length in the bridge axis direction (length direction) is substantially the same as the length in the length direction of the upper rod 520, and is a side surface portion of the upper rod 520. It is being fixed to 520c and 520c by fixing members (not shown), such as a screw fastening body, respectively. Further, when the spacer 550 is fixed to the side portions 520c and 520c of the upper flange 520, the length in the width direction of the upper flange 520 and the pair of spacers 550 and 550 is the width of the upper structure 2. It is formed to be substantially the same as the length in the direction. Further, after being fixed to the side portions 520c and 520c of the upper flange 520, the guide member 512 is fixed to the spacer 550 by a fixing member 535 such as a screw fastening body.

The spacers 550 are provided such that the length in the length direction is substantially the same as the length in the length direction of the upper collar 520, and one spacer 550 is fixed to each of the side portions 520c and 520c of the upper collar 520. Instead, the length in the length direction may be shorter than the length in the length direction of the upper collar 520, and a plurality of each may be fixed to the side surface portions 520c and 520c of the upper collar 520. .

Even such a guide member 512 is fixed to the side surface portion 520c of the upper collar 520 via the spacer 550, the side surface portion 512c is brought into contact with the side surface portion of the upper structure 502, and the engaging portion 534 is formed in the upper structure. By engaging with the upper surface 502b of the object 502, the upper rod 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and the upper rod 520 is slid in the bridge axis direction by the sliding member 511. In this case, the upper collar 520 can be guided to prevent the upper collar 520 from being separated from the upper structure 502.

Accordingly, even in the support structure 650 in which the length in the width direction of the upper collar 520 is shorter than the length in the width direction of the upper structure 502, the support device 510 is replaced with the movable rubber support device by the guide member 512. Thus, the bearing device 510 can be used as a movable rubber bearing device by the sliding member 511 and the guide member 512.

Note that, in the support structure 650, the engaging portion 534 may be provided separately from the main body portion 512e of the guide member 512, similarly to the support structure 610 shown in FIG.

84, the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is interposed via the spacer 550 in the same manner as the bearing structure 630 shown in FIG. A plurality of side surfaces 520c and 520c of 520 may be fixed.

[13. Explanation of Modification 6 of Bearing Structure]
As shown in FIG. 87, in the support structure 660 of Modification 6, when the length of the upper bridge 520 in the direction perpendicular to the bridge axis (width direction) is shorter than the length of the upper structure 502 in the width direction, the upper structure 502 The spacer plate 560 is fixed to the spacer plate 560 so that the engaging portion 534 of the guide member 512 fixed to the side surface portion 520c of the upper collar 520 is engaged with the spacer plate 560.

Specifically, the spacer plate 560 includes a first spacer plate 561 whose length in the width direction is shorter than the length in the width direction of the upper collar 520 and a length in the width direction that is substantially the same as the length of the upper collar 520 in the width direction. The second spacer plate 562 has a length. The first spacer plate 561 is a thin plate having a substantially rectangular shape in plan view, and is fixed to the lower surface 502a of the upper structure 502 by welding, a screw fastening body, or the like. The second spacer plate 562 is a thin plate having a substantially rectangular shape in plan view, and is laminated on the lower surface of the first spacer plate 561 and fixed by welding, a screw fastening body, or the like. The first spacer plate 561 and the second spacer plate 562 are disposed on the entire or part of the lower surface 502a of the upper structure 502. Further, an upper plate 533 is fixed to the lower surface of the second spacer plate 562. At this time, the upper plate 533 is preferably disposed on the entire lower surface of the second spacer plate 562, but may be disposed on a part thereof.

Further, since the length in the width direction of the first spacer plate 561 is shorter than the length in the width direction of the second spacer plate 562, the guide member is interposed between the lower surface 502 a of the upper structure 502 and the second spacer plate 562. An insertion recess 563 into which the engagement portion 534 of 512 can be inserted is formed. Further, the protruding portion of the second spacer plate 562 protruding from the first spacer plate 561 is engaged with the engaging portion 534 inserted into the insertion recess 563 and becomes a rail when the engaging portion 534 moves. The engagement portion 564 is obtained. Further, the first spacer plate 561 is thicker than the engaging portion 534 so that the engaging portion 534 can be easily inserted into the insertion recess 563 and can be easily engaged with the engaged portion 564. It is formed thick.

As with the support structure 1 shown in FIG. 79, the guide member 512 is fixed to the side surface portion 520c of the upper collar 520, the side surface portion 512c is brought into contact with the side surface portion of the second spacer plate 562, and the engaging portion 534 is By engaging with the engaged portion 564 of the second spacer plate 562, the upper collar 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and the upper collar 520 is supported by the sliding member 511. The upper rod 520 is guided when sliding in the bridge axis direction, and the upper rod 520 is prevented from being separated from the upper structure 2.

Therefore, even in the support structure 660 in which the length in the width direction of the upper collar 520 is shorter than the length in the width direction of the upper structure 502, the support device 510 is replaced with the movable rubber support device by the guide member 512. Thus, the bearing device 510 can be used as a movable rubber bearing device by the sliding member 511 and the guide member 512.

Note that the support structure 660 is not limited to the first spacer plate 661 and the second spacer plate 662 provided separately, and may be provided integrally. That is, the spacer plate 660 includes a first spacer portion 561 whose length in the width direction is shorter than the length in the width direction of the upper collar 520, and a length in the width direction that is substantially the same as the length in the width direction of the upper collar 520. The second spacer portion 562 may be used.

Further, as shown in FIG. 87, the support structure 660 is limited to that the upper plate 533 is fixed to the lower surface of the second spacer plate 562 and the sliding member 511 is fixed to the upper surface 520a of the upper collar 520. Instead, the sliding member 511 may be fixed to the lower surface of the second spacer plate 562, and the upper plate 533 may be fixed to the upper surface 520a of the upper collar 520. Further, at least one of the sliding member 511 and the upper plate 533 may be coated with a lubricant to reduce friction.

Further, the support structure 660 does not provide the upper plate 533 on the lower surface of the second spacer plate 562 and the upper surface 520a of the upper collar 520, but instead of the upper plate 533, these surfaces are mirror-finished to reduce the friction. You may make it show. Further, in this case, a lubricant is applied to at least one of the lower surface of the sliding member 511 and the second spacer plate 562 or at least one of the upper surface 520a of the sliding member 511 and the upper collar 520 to reduce the friction. You may make it plan.

Furthermore, the support structure 660 may be provided with a sliding member 511 on the lower surface of the second spacer plate 562 and the upper surface 520a of the upper collar 520 to reduce friction. Further, the support structure 660 is not provided with the sliding member 511 on the lower surface of the second spacer plate 562 and the upper surface 520a of the upper collar 520, and instead of the sliding member 511, these surfaces are mirror-finished so as to reduce the thickness. You may make it aim at friction. Furthermore, a lubricant may be applied to at least one of the lower surface of the second spacer plate 562 and the upper surface 520a of the upper collar 520 to reduce friction.

Further, in the support structure 660, the engaging portion 534 may be provided separately from the main body portion 512e of the guide member 512, similarly to the support structure 610 shown in FIG.

84, the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is similar to the bearing structure 630 shown in FIG. A plurality of each may be fixed to 520c.

Further, in the support structure 660, the insertion recess 563 and the engaged portion 564 are formed by providing the first spacer plate 561 in the width direction shorter than the second spacer plate 562 in the width direction. 88, the first spacer plate 561 is formed so that the length in the width direction is substantially the same as the length in the width direction of the upper collar 520, as shown in FIG. The insertion recess 563 and the engaged portion 564 may be formed by forming notches 561b and 561b having a substantially rectangular shape in plan view on the side portions 561a and 561a in the width direction of the plate 561. That is, in the support structure 660 shown in FIG. 88, the inside of the notch 561b is an insertion recess 563 into which the engaging part 534 can be inserted, and the exposed part exposed from the notch 561b of the second spacer plate 562 is the engaging part 534. Is engaged and becomes an engaged portion 564 that becomes a rail when the engaging portion 534 moves. Furthermore, in the support structure 660 shown in FIG. 88, the portion of the first spacer plate 561 that is adjacent to the notch 561b in the length direction is engaged with the guide member 512 after the upper collar 520 slides to some extent in the bridge axis direction. The joint portion 534 is brought into contact with the stopper portion 561c, which restricts further movement of the upper collar 520 in the bridge axis direction.

Note that the notch 561b is not limited to a substantially rectangular shape in a plan view, and may be a substantially trapezoidal shape in a plan view as shown in FIG. good. Thereby, the stopper part 561c has the taper part 561d which becomes wide as it separates from the support apparatus 510 in the length direction. The taper portion 561d regulates further movement of the upper collar 520 in the bridge axis direction when the engaging portion 534 of the guide member 512 is pressed or brought into close contact after the upper collar 520 slides to some extent in the bridge axis direction. In addition, the displacement of the support device 510 can be absorbed so as to decelerate or attenuate the movement of the upper rod 520 in the bridge axis direction. Further, such a stopper portion 561c by the notch portion 561b may be provided instead of the stopper member 537 shown in FIG. 81 or may be provided together with the stopper member 537.

[14. Explanation of Modification 7 of Bearing Structure]
As shown in FIG. 90, in the support structure 670 of the modified example 7, when the length of the upper bridge 520 in the direction perpendicular to the bridge axis (width direction) is shorter than the length of the upper structure 502 in the width direction, the upper structure 502 The spacer plate 570 is fixed to the side surface portion 570a of the spacer plate 570 so that the guide member 512 fixed to the side surface portion 520c of the upper collar 520 is engaged.

Specifically, the spacer plate 570 is a thin plate having a substantially rectangular shape in plan view and having a length in the width direction that is substantially the same as the length in the width direction of the upper collar 520, and is welded to the lower surface 502 a of the upper structure 502. It is fixed by a screw fastening body or the like. Such a spacer plate 570 is disposed on the entire surface or a part of the lower surface 502 a of the upper structure 502. Further, an upper plate 533 is fixed to the lower surface of the spacer plate 570. At this time, the upper plate 533 is preferably disposed on the entire lower surface of the spacer plate 570, but may be disposed on a part thereof. Further, on the side surface portion 570a of the spacer plate 570, an engaging groove portion 571 made of sawtooth-shaped unevenness extending in the bridge axis direction (length direction) is formed.

The guide member 512 is a saw tooth extending in the length direction so as to correspond to the engaging groove 571 of the spacer plate 570 instead of the engaging portion 534 on one side surface portion 512c facing the upper collar 520. Engagement ridges 512g made of a concavo-convex shape are formed. Such a guide member 512 is fixed to the side surface portion 520c of the upper collar 520 in the same manner as the support structure 501 shown in FIG. 79, and the engaging ridge portion 512g is engaged with the engaging ridge portion 571 of the spacer plate 570. As a result, the upper rod 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and when the upper rod 520 is slid by the sliding member 511 in the bridge axis direction, the upper rod 520 is moved. Guide and prevent the upper collar 520 from separating from the upper structure 502.

Accordingly, even when the engaging protrusion 512g of the guide member 512 is in the supporting structure 670 engaged with the engaging groove 571 of the spacer plate 570, the supporting device 510 is movable by the guide member 512. It can be easily attached to the upper structure 502 so as to be a rubber bearing device, and the bearing device 510 can be used as a movable rubber bearing device by the sliding member 511 and the guide member 512.

In addition, the support structure 670 may be configured such that an engaging ridge is formed on the side surface 570 a of the spacer plate 570 and an engaging ridge is formed on the guide member 512.

90, the support structure 670 is not limited to the upper plate 533 fixed to the lower surface of the spacer plate 570 and the sliding member 511 fixed to the upper surface 520a of the upper collar 520. The sliding member 511 may be fixed to the lower surface of the spacer plate 570, and the upper plate 533 may be fixed to the upper surface 520a of the upper collar 520. Further, at least one of the sliding member 511 and the upper plate 533 may be coated with a lubricant to reduce friction.

Further, the support structure 670 can reduce the friction by providing a mirror finish on these surfaces instead of the upper plate 533 without providing the upper plate 533 on the lower surface of the spacer plate 570 and the upper surface 520a of the upper collar 520. Anyway. Further, in this case, a lubricant is applied to at least one of the sliding member 511 and the lower surface of the spacer plate 570 or at least one of the sliding member 511 and the upper surface 520a of the upper collar 520 to reduce friction. You may do it.

Furthermore, the bearing structure 670 may be provided with a sliding member 511 on the lower surface of the spacer plate 570 and the upper surface 520a of the upper collar 520 to reduce friction. Further, the support structure 670 is not provided with the sliding member 511 on the lower surface of the spacer plate 570 and the upper surface 520a of the upper collar 520, but instead of the sliding member 511, these surfaces are mirror-finished to reduce the friction. You may make it plan. Furthermore, a lubricant may be applied to at least one of the lower surface of the spacer plate 570 and the upper surface 520a of the upper collar 520 to reduce friction.

84, the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is the same as the bearing structure 630 shown in FIG. A plurality of each may be fixed to 520c.

[15. Description of modification 8 of bearing structure]
In the above example, for example, as shown in FIG. 79, when the length of the upper bridge 520 in the direction perpendicular to the bridge axis (width direction) is substantially the same as the length of the upper structure 2 in the width direction, FIG. As illustrated, the case where the length in the width direction of the upper collar 520 is shorter than the length in the width direction of the upper structure 502 has been described as an example, but the present invention is not limited to this. This can also be applied to the case where the length of the upper collar 520 in the width direction is longer than the length of the upper structure 502 in the width direction.

Specifically, as shown in FIG. 91, in the support structure 680 of the modification 8, the guide member 512 is fixed to the upper surface 520a of the upper collar 520. In this case, the lower end portion 512b of the guide member 512 is fixed to the upper surface 520a of the upper collar 520 by fixing the lower end portion 512b from the lower surface 520b side of the upper collar 520 with a fixing member 535 such as a screw fastening body. Is done. In addition, the guide member 512 may be fixed to the upper surface 520a of the upper collar 520 by welding or a conventionally known fixing method.

Such a guide member 12 is fixed to the upper surface 520a of the upper collar 520, the side surface portion 512c is brought into contact with the side surface portion of the upper structure 502, and the engaging portion 534 is engaged with the upper surface 502b of the upper structure 502. Thus, the upper rod 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and when the upper rod 520 is slid in the bridge axis direction by the sliding member 511, the upper rod 520 is guided. The upper collar 520 is prevented from being separated from the upper structure 502.

Therefore, even in the support structure 680 in which the length in the width direction of the upper collar 520 is longer than the length in the width direction of the upper structure 502, the support device 510 is replaced with the movable rubber support device by the guide member 512. Thus, the bearing device 510 can be used as a movable rubber bearing device by the sliding member 511 and the guide member 512.

91, the support structure 680 is limited to a structure in which the upper plate 533 is fixed to the lower surface 502a of the upper structure 502 and the sliding member 511 is fixed to the upper surface 520a of the upper collar 520. Instead, the sliding member 511 may be fixed to the lower surface 502a of the lower surface 502a of the upper structure 502, and the upper plate 533 may be fixed to the upper surface 520a of the upper collar 520. Further, at least one of the sliding member 511 and the upper plate 533 may be coated with a lubricant to reduce friction.

Further, the support structure 680 does not provide the upper plate 533 on the lower surface 502a of the upper structure 502 and the upper surface 520a of the upper flange 520, but instead of the upper plate 533, these surfaces are mirror-finished to reduce the friction. You may make it show. Further, in this case, a lubricant is applied to at least one of the sliding member 511 and the lower surface 502a of the upper structure 2 or at least one of the sliding member 511 and the upper surface 520a of the upper flange 520 to reduce friction. You may make it plan.

Furthermore, the bearing structure 680 may be provided with a sliding member 511 on the lower surface 502a of the upper structure 502 and the upper surface 520a of the upper rod 520 to reduce friction. Further, the support structure 680 is not provided with the sliding member 511 on the lower surface 502a of the upper structure 502 and the upper surface 520a of the upper flange 520, and instead of the sliding member 511, these surfaces are mirror-finished to reduce the low level. You may make it aim at friction. Furthermore, a lubricant may be applied to at least one of the lower surface 502a of the upper structure 502 and the upper surface 520a of the upper collar 520 to reduce friction.

Further, as shown in FIG. 92, the support structure 680 protrudes outward to the other side surface portion 512d opposite to the one side surface portion 512c formed with the engaging portion 534 on the lower end portion 512b side of the guide member 512. A convex mounting portion 512f is formed, and the mounting portion 512f is fixed to the upper surface 502b of the upper collar 520 by a fixing member 535 such as a screw fastening body from the upper surface 502b side of the upper collar 520, whereby the guide member 512 is fixed. You may make it fix to the upper surface 520a of the upper collar 520. FIG.

Further, in the support structure 680, the engaging portion 534 may be provided separately from the main body portion 512e of the guide member 512, similarly to the support structure 610 shown in FIG. Furthermore, in the support structure 680 shown in FIG. 92, the mounting portion 512f may be provided separately from the main body portion 512e of the guide member 512, and the engaging portion 534 and the mounting portion 512f are the guide member. The main body portion 512e of 512 may be provided separately.

84, the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is the width of the upper surface 520a of the upper collar 520, like the bearing structure 630 shown in FIG. A plurality may be fixed at both ends in the direction.

[16. Description of modification 9 of bearing structure]
As shown in FIG. 93, in the support structure 690 of Modification 9, when the length of the upper bridge 520 in the direction perpendicular to the bridge axis (width direction) is longer than the length of the upper structure 502 in the width direction, the upper structure 502 The spacer plate 590 is fixed to the spacer plate 590 so that the engaging portion 534 of the guide member 512 fixed to the side surface portion 520c of the upper collar 520 is engaged with the spacer plate 590.

Specifically, the spacer plate 590 is a thin plate having a substantially rectangular shape in plan view provided with a length in the width direction substantially the same as the length in the width direction of the upper collar 520, and the lower surface 502 a of the upper structure 502. Are fixed by welding or screw fastening bodies. The spacer plate 590 is disposed on the entire surface or a part of the lower surface 502 a of the upper structure 502. Further, since the length in the width direction of the spacer plate 590 is longer than the length in the width direction of the upper structure 2, the protruding portion protruding from the upper structure 2 of the spacer plate 590 is the engagement portion 534 of the guide member 512. The engaged portion 591 is engaged. Further, an upper plate 533 is fixed to the lower surface of the spacer plate 590.

As with the support structure 501 shown in FIG. 79, the guide member 512 is fixed to the side surface portion 520c of the upper collar 520, the side surface portion 512c is brought into contact with the side surface portion of the spacer plate 590, and the engaging portion 534 is engaged with the spacer plate 590. By engaging with the engaged portion 591, the upper rod 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and the upper rod 520 is slid in the bridge axis direction by the sliding member 511. The upper collar 520 is guided when sliding, and the upper collar 520 is prevented from being separated from the upper structure 502.

Therefore, even in the support structure 690 in which the length in the width direction of the upper collar 520 is longer than the width of the upper structure 502, the support device 510 becomes a movable rubber support device by the guide member 512. Thus, the support device 510 can be used as a movable rubber support device by the sliding member 511 and the guide member 512.

93, the support structure 690 is not limited to the upper plate 533 being fixed to the lower surface of the spacer plate 590 and the sliding member 511 being fixed to the upper surface 520a of the upper collar 520. The sliding member 511 may be fixed to the lower surface of the spacer plate 590, and the upper plate 533 may be fixed to the upper surface 520a of the upper collar 520. Further, at least one of the sliding member 511 and the upper plate 533 may be coated with a lubricant to reduce friction.

Further, the support structure 690 is provided with a mirror finish on these surfaces instead of the upper plate 533 without providing the upper plate 533 on the lower surface of the spacer plate 590 and the upper surface 520a of the upper collar 520 so as to reduce friction. Anyway. Further, in this case, a lubricant is applied to at least one of the lower surface of the sliding member 511 and the spacer plate 590 or at least one of the upper surface 520a of the sliding member 511 and the upper collar 520 to reduce friction. You may do it.

Furthermore, the support structure 690 may be provided with a sliding member 511 on the lower surface of the spacer plate 590 and the upper surface 520a of the upper collar 520 to reduce friction. Further, the support structure 690 is not provided with the sliding member 511 on the lower surface of the spacer plate 590 and the upper surface 520a of the upper collar 520, but instead of the sliding member 511, these surfaces are mirror-finished to reduce friction. You may make it plan. Furthermore, a lubricant may be applied to at least one of the lower surface of the spacer plate 590 and the upper surface 520a of the upper collar 520 to reduce friction.

Further, in the support structure 690, the engaging portion 534 may be provided separately from the main body portion 512e of the guide member 512, similarly to the support structure 610 shown in FIG.

Also, the support structure 690 is similar to the support structure 630 shown in FIG. 84 in that the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is replaced with the side surface portion 520c, A plurality of each may be fixed to 520c.

88 and 89, the support structure 690 includes a spacer plate 590 having a first spacer having a length in the width direction substantially the same as the length in the width direction of the upper collar 520. An insertion recess that is configured by the second spacer, and is formed with a substantially rectangular, trapezoidal, or semi-slotted cutout in the width direction side surface of the first spacer and into which the engaging portion 534 is inserted. An engaged portion with which the engaging portion 534 inserted into the insertion recess is engaged, and a stopper portion that is brought into contact with the engaging portion 534 to restrict the movement of the upper collar 520 in the bridge axis direction are formed. You may do it.

[17. Description of Modification 10 of Bearing Structure]
As shown in FIG. 94, in the support structure 700 of the modified example 10, when the length of the upper bridge 520 in the direction perpendicular to the bridge axis (width direction) is longer than the length of the upper structure 502 in the width direction, the upper structure 502 The spacer plate 600 is fixed to the side plate 600, and the guide member 512 fixed to the side surface portion 520 c of the upper collar 520 is engaged with the side surface portion 600 a of the spacer plate 600.

Specifically, the spacer plate 600 is a thin plate having a substantially rectangular shape in plan view and having a length in the width direction that is substantially the same as the length in the width direction of the upper collar 520, and is welded to the lower surface 502 a of the upper structure 502. It is fixed by a screw fastening body or the like. The spacer plate 600 is disposed on the entire surface or a part of the lower surface 502 a of the upper structure 502. Further, the upper plate 533 is fixed to the lower surface of the spacer plate 600. At this time, the upper plate 533 is preferably disposed on the entire lower surface of the spacer plate 600, but may be disposed on a part thereof. Further, on the side surface portion 600a of the spacer plate 600, an engaging groove portion 601 is formed which is formed of serrated irregularities extending in the bridge axis direction (length direction).

The guide member 512 is a saw tooth extending in the length direction so as to correspond to the engaging groove 601 of the spacer plate 600 instead of the engaging portion 534 on one side surface portion 512c facing the upper collar 520. Engagement ridges 512g made of a concavo-convex shape are formed. Such a guide member 512 is fixed to the side surface portion 520c of the upper collar 520 in the same manner as the support structure 501 shown in FIG. 79, and the engaging protrusion 512g is engaged with the engaging groove 601 of the spacer plate 600. As a result, the upper rod 520 is slidably supported in the bridge axis direction with respect to the upper structure 502, and when the upper rod 520 is slid by the sliding member 511 in the bridge axis direction, the upper rod 520 is moved. Guide and prevent the upper collar 520 from separating from the upper structure 502.

Accordingly, even in the support structure 700 in which the engaging protrusions 512g of the guide member 512 are engaged with the engaging recesses 601 of the spacer plate 600, the support device 510 is movable by the guide member 512. It can be easily attached to the upper structure 502 so as to be a rubber bearing device, and the bearing device 510 can be used as a movable rubber bearing device by the sliding member 511 and the guide member 512.

Note that the support structure 700 may be configured such that an engaging ridge is formed on the side surface 600 a of the spacer plate 600 and an engaging ridge is formed on the guide member 512.

94, the support structure 700 is not limited to the upper plate 533 being fixed to the lower surface of the spacer plate 600 and the sliding member 511 being fixed to the upper surface 520a of the upper collar 520. The sliding member 511 may be fixed to the lower surface of the spacer plate 600, and the upper plate 533 may be fixed to the upper surface 520a of the upper collar 520. Further, at least one of the sliding member 511 and the upper plate 533 may be coated with a lubricant to reduce friction.

Further, in the support structure 700, the upper plate 533 is not provided on the lower surface of the spacer plate 600 and the upper surface 520a of the upper collar 520, but instead of the upper plate 533, these surfaces are mirror-finished to reduce friction. Anyway. Further, in this case, a lubricant is applied to at least one of the sliding member 511 and the lower surface of the spacer plate 600 or at least one of the sliding member 511 and the upper surface 520a of the upper collar 520 to reduce friction. You may do it.

Furthermore, the support structure 700 may be provided with a sliding member 511 on the lower surface of the spacer plate 600 and the upper surface 520a of the upper collar 520 to reduce friction. Further, the support structure 670 is provided with a mirror finish on these surfaces instead of the sliding member 511 without providing the sliding member 511 on the lower surface of the spacer plate 600 and the upper surface 520a of the upper collar 520, thereby reducing the friction. You may make it plan. Furthermore, a lubricant may be applied to at least one of the lower surface of the spacer plate 600 and the upper surface 520a of the upper collar 520 to reduce friction.

84, the guide member 512 whose length in the length direction is shorter than the length in the length direction of the upper collar 520 is the same as the bearing structure 630 shown in FIG. A plurality of each may be fixed to 520c.

[18. Other variations]
In the above example, the sliding member 511 is disposed between the upper collar 520 and the upper structure 502, and the upper collar 520 is fixed to the upper structure 502 by the guide member 512 fixed to the upper collar 520. Although an example of being supported and guided so as to be slidable in the bridge axis direction has been described, the present invention is not limited to this. In the support structure of the present invention, a sliding member 511 is disposed between the lower rod 521 and the lower structure 503, and the lower rod 521 is attached to the lower structure 503 by a guide member 512 fixed to the lower rod 521. On the other hand, it may be supported and slidable in the direction of the bridge axis. In this case, the upper rod 520 is fixed to the upper structure 502 directly or indirectly using the upper plate 533 by fixing members such as bolts and nuts.

In the above example, a pair of guide members 512 are fixed in the direction perpendicular to the bridge axis of the upper rod 520 or the lower rod 521, and the upper rod 520 or the lower rod 521 is fixed to the upper structure 502 or the lower structure by the guide member 512. Although the example which is supported and guided so as to be slidable in the bridge axis direction with respect to 503 has been described, it is not limited thereto. In the support structure of the present invention, a pair of guide members 512 are fixed in the bridge axis direction of the upper rod 520 or the lower rod 521, and the upper rod 520 or the lower rod 521 is fixed to the upper structure 502 or the lower structure 3 by the guide member 512. However, they may be supported and slidably supported in a direction perpendicular to the bridge axis.

Further, in the above example, the sliding member 511 is disposed between the upper structure 502 and the upper collar 520 or between the lower structure 503 and the lower collar 521 and is fixed to the upper collar 520 or the lower collar 521. In the above description, the upper guide 520 or the lower guide 521 is slidably supported and guided by the guide member 512 in the direction of the bridge axis or the direction perpendicular to the bridge axis with respect to the upper structure 502 or the lower structure 503. However, the present invention is not limited to this. In the support structure of the present invention, a sliding member 511 is disposed between the upper structure 502 and the upper collar 520 and between the lower structure 503 and the lower collar 521, and the guide member is fixed to the upper collar 520. The upper rod 520 is slidably supported and guided by the upper structure 2 in the direction of the bridge axis or the direction perpendicular to the bridge axis, and the lower rod 521 is fixed by the guide member 512 fixed to the lower rod 521. May be slidably supported and guided in the direction of the bridge axis or the direction perpendicular to the bridge axis with respect to the lower structure 503.

Furthermore, in the support structure of the present invention, either the upper rod 520 or the lower rod 521 is supported and guided so as to be slidable in the bridge axis direction, and the other is slidably supported in the direction perpendicular to the bridge axis. It may be guided. Further, the support structure of the present invention is not limited to the upper rod 520 and the lower rod 521 being supported and guided so as to be slidable in the bridge axis direction or the direction perpendicular to the bridge axis. It may be supported and slidably supported in a direction having a predetermined angle from the direction perpendicular to the bridge axis.

Further, in the above description, the support device of the support structure of the present invention has been described as a bridge support device. However, the support device of the support structure of the present invention is not limited to the support device for bridges, and can be used for buildings and constructions. It can be used as a support device for seismic control and seismic isolation of various structures such as objects and cultural assets.

Claims (75)

1. A first rigid body disposed on one of the first structure or the second structure;
   A second rigid body disposed on the other of the first structure or the second structure;
   An elastic body disposed between the first rigid body and the second rigid body;
   A restraining body surrounding the elastic body at a position where the side surface of the elastic body elastically deformed approaches or abuts,
   A support device in which a convex portion or a concave portion is formed on either the side surface of the elastic body or the constraining surface of the constraining body.
2. When a predetermined value or more is input, the elastic body is elastically deformed so as to reduce the volume of the gap created by the convex portion and the concave portion, and the deformed elastic body abuts on the restraining body and / or Alternatively, the support device according to claim 1, wherein the support device is configured to be pressed and restrained from being deformed by the elastic body.
3. The elastic body is surrounded by the first rigid body, the second rigid body, and the restraining body to be in a substantially sealed state,
   The bearing device according to claim 1, wherein the bearing device changes to a higher sealed state as the load on the elastic body increases.
4. The support device according to any one of claims 1 to 3, wherein the elastic body has a laminated structure in which an elastic layer and a reinforcing plate are laminated.
5. On the side surface of the elastic body or the restraint surface of the restraint body, the convex portion or the concave portion is formed at one of the position of the reinforcing plate or the position between the reinforcing plates, and the concave portion or the convex portion is formed at the other. The support device according to claim 4.
6. The support device according to any one of claims 1 to 3, wherein the elastic body is formed of a single elastic layer.
7. The support according to claim 1, wherein the convex portion or the concave portion is formed continuously or intermittently in a circumferential direction of a side surface of the elastic body or a constraining surface of the constraining body. apparatus.
8. The support device according to any one of claims 1 to 7, wherein a gap is formed between a side surface of the elastic body and a restraint surface of the restraint body.
9. The support device according to any one of claims 1 to 7, wherein the convex portion of the elastic body is in contact with a restraining surface of the restraining body.
10. 10. The bearing device according to claim 1, wherein the restraining body is provided integrally with the first rigid body.
11. 10. The bearing device according to claim 1, wherein the restraining body is provided integrally with the second rigid body.
12. Either the first rigid body or the second rigid body is provided with a core material,
    The bearing device according to claim 1, wherein the core member includes a lifting prevention portion and a horizontal displacement prevention portion.
13. When a predetermined value or more is input, the elastic body is elastically deformed so as to reduce the volume of the gap created by the convex portion and the concave portion, and the deformed elastic body abuts on the restraining body and / or The bearing device according to claim 12, wherein the bearing device is configured to be pressed and restrained from deformation of the elastic body.
14. The elastic body is surrounded by the first rigid body, the second rigid body, and the restraining body to be in a substantially sealed state,
    The bearing device according to claim 12 or 13, wherein the bearing device changes to a more advanced sealed state as the load on the elastic body increases.
15. 15. The bearing device according to claim 12, wherein the core member penetrates the first rigid body or the second rigid body.
16. 15. The bearing device according to claim 12, wherein the core member does not penetrate the first rigid body or the second rigid body.
17. The support device according to any one of claims 12 to 16, wherein the elastic body has a reinforcing plate therein.
18. The support device according to claim 17, wherein the reinforcing plate has a ring shape.
19. The support device according to claim 17, wherein the reinforcing plate is provided concentrically in the elastic body.
20. The bearing device according to claim 17, wherein the reinforcing plate has a protruding portion protruding in a thickness direction.
21. The core member is provided on the second rigid body, the elastic body is disposed on the second rigid body, the elastic deformation restraining body is provided on the first rigid body side, and a tip portion thereof is the first rigid body. The supporting device according to claim 15, wherein the lifting prevention portion is engaged with a through hole of a rigid body.
22. The core member is provided on the second rigid body, and a distal end portion is provided with a large-diameter portion on which the elastic body is disposed, and an outer peripheral portion of the large-diameter portion is the restraint body on the first rigid body side. The support device according to claim 16, wherein the support device engages with an end portion of the support portion to become the lifting prevention portion.
23. On the side surface of the elastic body or the restraint surface of the restraint body, the convex portion or the concave portion is formed at one of the position of the reinforcing plate or the position between the reinforcing plates, and the concave portion or the convex portion is formed at the other. The support device according to any one of claims 12 to 22.
24. 23. The bearing device according to claim 12, wherein the convex portion of the elastic body is in contact with a restraining surface of the restraining body.
25. A sliding member is provided between the first rigid body and the first structure and / or between the second rigid body and the second structure. 24. The bearing device according to any one of 24.
26. An elastic sealing body that has elasticity and / or flexibility and seals the gap is disposed in the gap between the distal end portion of the restraint body and any one of the structures or the rigid body. The support device according to claim 1, wherein the support device is provided.
27. The restraining body has a function of restraining elastic deformation of the elastic body and / or a function of maintaining a substantially sealed state of the elastic body and / or a function of restraining relative displacement between the first rigid body and the second rigid body. 27. The bearing device according to claim 26, comprising:
28. Either the first rigid body or the second rigid body is provided with a core material,
    The support device according to claim 26 or 27, wherein the core member has a lifting prevention portion and a horizontal displacement prevention portion.
29. 29. The bearing device according to claim 28, wherein a flange-shaped lifting prevention piece is provided at a distal end portion of the restraining body.
30. 30. The support according to claim 26, wherein the elastic sealing body is disposed in a gap between the lifting prevention piece and the first rigid body or the second rigid body. apparatus.
31. 30. The bearing device according to claim 29, wherein the elastic sealing body is disposed in a gap between the lifting prevention piece and the core member.
32. 31. The bearing device according to claim 26, wherein the elastic sealing body is an elastic body capable of supporting a load.
33. The restraint body is fixed to one of the first rigid body and the second rigid body by a fixing portion,
    2. The support device according to claim 1, wherein the restraining body approaches and / or abuts one of the first rigid body and the second rigid body when the fixing portion is damaged.
34. The restraining body has a function of restraining elastic deformation of the elastic body and / or a function of maintaining a substantially sealed state of the elastic body and / or a function of restraining relative displacement between the first rigid body and the second rigid body. 34. The bearing device according to claim 33, comprising:
35. 35. The support device according to claim 33 or 34, wherein the fixing portion is fixed by a fastening member having an axis substantially parallel to a vertical displacement direction.
36. Either one of the first rigid body and the second rigid body is provided with a core material,
    36. The core material according to claim 33, further comprising a lifting prevention portion that partially overlaps at least one of the restraint body, the first rigid body, and the second rigid body. The bearing device described in 1.
37. The binding strength between the restraint body and the first rigid body or the second rigid body by the fixing part is the coupling strength between the core material, the first rigid body, or the second rigid body. 37. The bearing device according to claim 36, wherein the bearing device is lower than strength.
38. 38. The coupling strength between the restraint body and the first rigid body or the second rigid body by the fixing portion is lower than the strength of the lifting prevention portion. Bearing device.
39. The elastic body has either one of the first rigid body and the second rigid body to which the restraint body is fixed by the fixing portion even after the restraint body falls, The support device according to any one of claims 33 to 38, wherein the structure is continuously supported.
40. The core member includes a horizontal displacement prevention unit that prevents horizontal displacement of any one of the first rigid body and the second rigid body in which the restraint body is fixed by the fixing unit. The support device according to any one of claims 36 to 39.
41. The fixing portion is a fixing bolt,
    When the fixing bolt is damaged by the lifting force, the restraint body has a bolt head that passes through the bolt seat and falls to the other side of the first rigid body and the second rigid body. A bearing device according to any of claims 33-40.
42. The fixing part is a fixing bolt;
    When the fixing bolt is damaged by the lifting force, the restraint body is pulled out of the screw hole from the screw hole and falls to the other side of the first rigid body and the second rigid body. A support device according to any of claims 33-40.
43. The fixing part is a fixing bolt;
    The said restraint body, when the fixing bolt is damaged by a horizontal force, the bolt shaft portion is sheared and falls to the other side of the first rigid body or the second rigid body. The bearing device according to any one of 33-42.
44. One of the first rigid body and the second rigid body to which the restraint body is fixed by the fixing portion is provided with a protrusion that fits the restraint body,
    44. Any one of claims 33 to 43, wherein an engagement length of the projecting portion with the restraint body is larger than a gap between the restraint body and the first rigid body or the second rigid body. The bearing device according to claim 1.
45. A lid plate is disposed between the first rigid body and the second rigid body to which the elastic body and the restraining body are fixed by the fixing portion. A support device according to any one of claims 33 to 43.
46. The support device according to claim 45, wherein a thickness of the cover plate is larger than a gap between the restraint body and the other rigid body.
47. A concave portion that is larger in the horizontal displacement direction than the lid plate is provided on a surface of the rigid body that faces the lid plate of the first rigid body or the second rigid body that is fixed by the fixing portion. 47. The bearing device according to claim 45 or 46, wherein: is formed.
48. One of the first rigid body and the second rigid body to which the restraint body is fixed by the fixing portion is larger in the horizontal displacement direction than the restraint body on the surface facing the restraint body. 44. The bearing device according to claim 33, wherein a recess is formed.
49. The outer surfaces of the first rigid body, the second rigid body, and the restraint body are set to any one of different colors, patterns, symbols, patterns, drawings, and pictures. The bearing device according to any one of the above.
50. The outer surface of the restraint body is set in the same manner as the color, pattern, symbol, pattern, figure, or picture set on the outer surface of the first rigid body or the second rigid body. The bearing device according to any one of 33-49.
51. The outer surface of the restraint body is set differently from a color, a pattern, a symbol, a pattern, a figure, or a picture set on the outer surface of the first rigid body or the second rigid body. The bearing device according to any one of 33-49.
52. 52. The bearing device according to claim 33, wherein a sliding means is provided between the elastic body and the inner peripheral surface of the restraining body.
53. 53. The bearing device according to claim 52, wherein the slippery means is a lubricant.
54. 54. The bearing device according to claim 52 or 53, wherein the sliding means includes a substantially cylindrical body having an outer surface disposed therein and an outer surface disposed on the sliding surface.
55. The restraint body is fixed to either the first rigid body or the second rigid body by a fixing bolt having a threaded portion,
    Either one of the restraint body or the rigid body to which the restraint body is fixed is formed with a screw hole and a preliminary screw hole for fastening the screw portion of the fixing bolt, and the other is a screw portion of the fixing bolt. A through hole corresponding to the screw hole to be inserted is formed,
    The restraint body is fixed to the rigid body by the screw portion of the fixing bolt being inserted into the through hole and tightened to the screw hole,
    When the fixing bolt is broken, the restraint body is fixed to the rigid body by screwing a new threaded portion of the fixing bolt into the through hole and tightening the spare screw hole. Item 2. The bearing device according to item 1.
56. The screw hole and the preliminary screw hole are formed in the restraint body,
    56. The support device according to claim 55, wherein the through hole is formed in a rigid body to which the restraint is fixed.
57. The screw hole and the preliminary screw hole are formed in a rigid body to which the restraint body is fixed,
    56. The support device according to claim 55, wherein the through hole is formed in the restraint.
58. The restraint body has a flange portion formed at the end on the rigid body side to which the restraint body is fixed,
    58. The support device according to claim 57, wherein the through hole is formed in the flange portion.
59. In the restraint body, a flange plate is fixed to an end portion on the rigid body side to which the restraint body is fixed,
    58. The support device according to claim 57, wherein the through hole is formed in the flange plate.
60. The bearing device according to any one of claims 55 to 59, wherein the preliminary screw hole is formed between the screw holes.
61. The support device is configured to slide between the first structure and the first rigid body and / or between the second structure and the second rigid body by sliding means. Or slide against the second structure,
    The guide member disposed on the rigid body on the side where the sliding means is disposed between the structure and the structure engages with the structure so as to be relatively displaceable, and guides when the support device slides. The bearing device according to claim 1, wherein:
62. 62. The bearing device according to claim 61, wherein the guide member has an engaging portion formed at a tip portion thereof.
63. The support device according to claim 61 or 62, wherein the engaging portion is provided separately from the guide member.
64. The supporting device according to any one of claims 61 to 63, wherein the guide member is a long member along a bridge axis direction.
65. The support device according to any one of claims 61 to 64, wherein a plurality of the guide members are disposed on the rigid body.
66. 66. The support device according to claim 61, wherein the guide member is disposed on a side surface of the rigid body.
67. The support device according to claim 66, wherein the guide member is disposed on a side surface portion of the rigid body via a spacer.
68. 66. The bearing device according to claim 61, wherein the guide member is disposed on a surface of the rigid body on the structure side.
69. The support device according to claim 66, wherein the guide member is engaged with a spacer plate arranged in the structure.
70. The spacer plate is disposed on the structure and has a first spacer plate that is narrower than the rigid body on which the guide member is disposed, and is stacked on the first spacer plate, and is substantially the same as the rigid body. It consists of a second spacer plate with the same width,
    70. The support device according to claim 69, wherein the guide member is engaged with an engaged portion of a second spacer plate protruding from the first spacer plate.
71. The spacer plate is disposed on the structure, has a width substantially the same as that of the rigid body on which the guide member is disposed, and a first spacer plate having a notch formed in the width direction, and the first spacer Laminated on the plate, and composed of a second spacer plate having substantially the same width as the rigid body,
    70. The bearing device according to claim 69, wherein the guide member is engaged with an engaged portion of the second spacer plate exposed from the notch portion of the first spacer plate.
72. 72. A stopper portion is formed on a portion of the first spacer plate adjacent in the length direction of the notch portion to contact the guide member and restrict movement of the support device. The bearing device described in 1.
73. The support device according to claim 72, wherein the stopper portion has a tapered portion, and the taper portion restricts movement of the support device and absorbs displacement of the support device.
74. The guide member is formed with an engaging ridge or an engaging ridge that forms a stripe extending in the sliding direction.
    The engaging ridge portion or the engaging ridge portion is engaged with an engaging ridge portion or an engaging ridge portion forming a ridge shape extending in a sliding direction on a side surface portion of the spacer. 70. The bearing device according to claim 69.
75. 75. The bearing device according to claim 61, wherein the bearing device is a fixed type bearing device.

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