JP5114435B2 - Damping device, damping structure, and damping panel - Google Patents

Description

  The present invention relates to an improvement of a vibration damping device, a vibration damping structure, and a vibration damping panel, and in particular, a vibration damping device, a vibration damping structure, and a vibration damping that can maintain stable vibration damping performance over a long period of time while being inexpensive. Regarding panels.

As an earthquake-resistant building structure, an “earthquake-resistant structure” that increases the rigidity of the building, a “damping structure” that absorbs kinetic energy with a damper device placed in the building, and vibration from the ground to the building There are "seismic isolation structures" that block propagation, and various technologies have been proposed for each.
In the “earthquake resistant structure”, it is necessary to increase the rigidity of the building structure, which increases the cost of materials, etc., while the vibrations inside the building are not mitigated and the items placed inside are damaged. There is a fear, and a countermeasure for this will be required separately.
In the “base isolation structure”, it is necessary to provide a large base isolation device for blocking vibration transmitted from the ground to the building, and there is a problem that equipment costs and construction costs increase.
For this reason, it is desirable to adopt a “vibration control structure” that can be realized at a relatively low cost and can prevent damage inside the building in wooden construction.

In the following description, not only the “damping structure” as a countermeasure against earthquakes in buildings but also the structure for preventing traffic vibration and wind vibration will be referred to as “damping structure”.
An example of a vibration control structure of a building is disclosed in Patent Document 1. This damping structure fixes the base ends of the four braces at the inner four corners of the rectangular frame member, makes the tip ends of the four braces approach each other, and offsets both braces facing each other in the diagonal direction in parallel. The top ends of the two braces on either the upper side or the left and right sides are fixed to the common first floating member, while the front ends of the remaining two braces are fixed to the common second floating member. In the vibration damping structure of a building wall portion in which a viscoelastic damper is configured by connecting a member and a second floating member with a viscoelastic body, the intersection of the extension lines of the upper two braces and the lower two The viscoelastic body is divided and arranged at two places sandwiching an intermediate point between the intersections of the extension lines of both braces.
In this vibration damping structure, a viscoelastic damper uses a viscoelastic member. However, a viscoelastic damper having excellent durability and fire resistance must be used, its material is limited, and the cost is low. There is a problem that it is bulky.
In addition, because it is a structure that uses a brace to attach the viscoelastic damper to the frame material, it increases the number of assembly steps and makes simple assembly difficult, and also increases the overall weight, so it can be applied to wooden houses. There is a problem that it is not suitable.

Next, in Patent Document 2, as a vibration-damping structure that does not use a viscoelastic damper, it is a seismic tool that is attached to a joint between a horizontal frame and a vertical frame, and rotates via a friction pad that absorbs the shaking of an earthquake. There is disclosed one having a damping mechanism composed of two link arms that are freely connected and a restoring mechanism that generates a restoring force that restores the damping mechanism deformed in one direction to its original shape. This seismic anti-vibration component is arranged across the frame members at the corners where the horizontal and vertical frames intersect, thereby absorbing the vibration applied to the link arm by the friction pad and restoring the deformed link arm. It is configured to be restored by a mechanism. This earthquake-resistant tool has a merit that it can be easily attached to an arbitrary corner of the rectangular frame material constituting the building.
However, in this earthquake resistant tool, the vibration direction in which energy can be absorbed and attenuated by the friction pad when the link arm is deformed is only one direction, and vibration from the opposite direction cannot be absorbed or attenuated. In order to absorb vibrations from the opposite direction, it is necessary to install other seismic tools in the opposite direction at the corners of the same frame material, which may increase the number of installations and costs due to the increase in the number of seismic tools used. It is clear. In addition, in the corner of the frame material where the space in the thickness direction is narrow and limited, energy is absorbed depending on only the friction pad disposed between the two link arms and between each link arm and each frame material. Therefore, it is extremely difficult to set the frictional force by the friction pad to an appropriate value.

Next, in Patent Document 3, a plurality of leaf springs having different lengths are stacked in a pyramid shape, and a laminated leaf spring in which a central portion of each leaf spring is connected by a hinge pad is used as a vibration damper. Although a vibration damping device is disclosed, a brace as a means for transmitting stress from the frame material to the vibration damping damper is essential, so that the number of installations is increased and the weight is increased. There is a defect that it is not suitable. In addition, in a damping device in which leaf springs are stacked in a pyramid shape, the stress applied from the top side of the pyramid toward the bottom surface can be absorbed and damped by friction between the leaf springs. There is a problem that the stress applied from the opposite direction cannot be absorbed and attenuated.
Next, Patent Document 4 discloses a configuration in which a reinforcing member composed of two curved leaf springs is provided at a position where a beam of a wooden frame building and a partition are in contact with each other. One end of one leaf spring is fixed to the beam, the other end of the other leaf spring is fixed to the partition, and the other end portions of both leaf springs are slidably engaged with each other. However, when both frame members are deformed due to an earthquake or the like, both leaf springs only perform expansion and contraction operations in which the other ends are relatively displaced, and the effect of absorbing and absorbing vibration energy due to friction between the leaf springs is expected. Can not. In particular, since the other end portions of the leaf spring are merely locked by small pieces, the small pieces are easily damaged by large vibration energy due to an earthquake, and a damping effect cannot be expected.
JP 2007-126868 A Japanese Patent No. 3470807 Japanese Patent Laid-Open No. 10-082203 JP 2003-96911 A

In the conventional vibration damping device in which a plurality of leaf springs are laminated as described above, a transmission member that transmits vibrations of the frame material to the leaf springs, such as braces, is essential. The problem is that it is not suitable for wooden buildings due to the complexity, difficulty, weight increase, and cost increase, and the stress applied from one direction can exhibit the effect of absorbing energy, but the stress from the opposite side There was a problem that could not be handled.
The present invention has been made in view of the above, and is low in cost, excellent in fire resistance and durability, without increasing the number of assembling steps and the number of parts, and is also capable of applying stress due to vibration and impact applied from two directions. An object of the present invention is to provide a vibration damping device, a vibration damping structure, and a vibration damping panel that can absorb and relax.
It is another object of the present invention to prevent the vibration damping effect from being lowered by the spring plate constituting the vibration damping device biting into the attachment surface of the frame member, and to further improve the assembly workability of the vibration damping device.

The conventional problem is solved by the following means.
The vibration damping device of the present invention is a vibration damping device including a leaf spring damping unit as a vibration absorbing element attached to an intersection of a plurality of frame members constituting a building, and the leaf spring damping unit is The intermediate portion is supported by at least one curved base spring plate whose both ends are fixed to the one frame member and the other frame member, and the intermediate portion in the longitudinal direction of the base spring plate. And at least one rubbing spring plate laminated at least partially on one surface of the base spring plate so as to be capable of rubbing.
In the present invention, kinetic energy applied to the building due to an earthquake or the like is transmitted to the leaf spring damping unit, and is converted into thermal energy and released in the leaf spring damping unit. Each spring plate constituting the leaf spring damping unit acts as a vibration absorbing element to absorb the vibration of the frame material. And in this invention, since the spring board generally used as a mechanical element is used as a vibration absorption element, while being able to be low-cost, it implement | achieves the damping device excellent in durability and heat resistance. be able to.

The leaf spring damping unit has a structure normally used as a mechanical element, and absorbs vibration by converting kinetic energy into heat energy by elastic deformation of the spring plate and friction between the spring plates. Moreover, when each spring board is comprised with a metal, it can be excellent in durability and heat resistance. Each spring plate is suitably made of a steel material, particularly a spring steel material, but any metallic material having elasticity may be used.
Various attachment portions, the number of attachments, and the like of the friction spring plate with respect to the base spring plate can be selected. For example, one or two or more rubbing spring plates may be arranged on one side or both sides of the base spring plate.
The intermediate portion between the base spring plate and the rubbing spring plate means a substantially central portion in the longitudinal direction, and is not limited to the central portion in a strict sense in terms of dimensions. Supporting the intermediate portion of the rubbing spring plate by the intermediate portion of the base spring plate includes a case where it is supported in a completely fixed manner and a case where it is supported in a movable state in the longitudinal direction.
By supporting the middle part of the rubbing spring plate against the middle part of the base spring plate, the contact surfaces of the two spring plates are brought into a pressure contact state, and when the frame material is deformed by an earthquake or the like, the two spring plates are separated from each other. Rub and absorb and mitigate energy from earthquakes.

The present invention is characterized in that an intermediate portion of the rubbing spring plate is fixed to an intermediate portion in the longitudinal direction of the base spring plate.
By fixing the intermediate portions, it is possible to increase the rubbing force on the other pressure contact surfaces excluding the intermediate portions of the two spring plates.
The present invention includes a restraining member that presses a portion of the sliding spring plate excluding the intermediate portion so as to be relatively displaceable relative to the base spring plate in the longitudinal direction.
Sufficient preload can be ensured by pressing the non-intermediate portions of the two spring plates with the restraining member.
In the present invention, the restraining member is a screw and a nut that pass through the base spring plate and the rubbing spring plate, and the screw is inserted and fixed in a round hole provided in the base spring, while the rubbing spring plate It is loosely fitted in a long hole provided in.
In the present invention, the restraining member is a binding member that binds the base spring plate and the rubbing spring plate in a pressed state.
The binding member includes, for example, a metal band that is wound around the outer surfaces of both spring plates and binds them.

The present invention is characterized in that the rubbing spring plates are arranged on both surfaces of the base spring plate, respectively.
According to the present invention, the plate spring damping unit rubs at least a part of an inner surface against a first sliding spring plate contacting the base spring plate and an outer surface of the first sliding spring plate. A second rubbing spring plate that can be stacked is provided, and an intermediate portion of the second rubbing spring plate is supported by an intermediate portion of the base spring plate.
The present invention includes a third rubbing spring plate in which at least a part of the inner side surface is slidably laminated with respect to the outer side surface of the second rubbing spring plate, The intermediate portion is supported by the intermediate portion of the base spring plate, and if necessary, the fourth and subsequent sliding spring plates can be sequentially slid against the outer surface of the third sliding spring plate. It is characterized by being arranged in a stacked state.
According to the present invention, the length of each of the rubbing spring plates is longer than the length of the other rubbing spring plates positioned on the nearest outer side, and both end portions of each of the rubbing spring plates are stepped. It is characterized by being laminated.
The present invention is characterized by comprising a reinforcing member interposed between the leaf spring damping unit and each frame member.
Handleability can be improved by unitizing the reinforcing material, the base spring plate, and the rubbing spring plate in advance.

The present invention, in the case where the rubbing spring plate each at least one in terms of both the Besubane plate fixedly arranged in rubbing capable stacked state than said respective rubbing spring plate said Besubane plate the length of the It is characterized by a short length.

The present invention is characterized in that the thickness and / or width of the base spring plate is different from that of the rubbing spring plate.
The vibration damping structure according to the present invention is characterized in that each of the vibration damping devices is arranged at an intersection between a horizontal frame and a vertical frame constituting a building.
The vibration damping device of the present invention can be applied to a portion where a plurality of frame members intersect. By disposing at the intersections of the frame materials constituting the building, the main points of the building can be made to be vibration-damping. For this reason, the damping work according to the condition of a building can be performed appropriately.
A vibration damping panel according to the present invention includes a substantially rectangular frame member and each of the vibration damping devices disposed at at least one corner of the frame member.
Damping devices can be placed on the rectangular frame material that constitutes the building, and the frame material can be vibration-damping. By adopting this structure for the frame material of existing buildings, It is possible to perform the vibration control work of the goods properly.

According to the present invention, the vibration damping device is disposed inside the rectangular frame material constituting the building, and the plate as a vibration absorbing element that absorbs vibration by converting the input kinetic energy into thermal energy. Since the spring member and the transmission member that transmits the vibration of the frame material to the leaf spring member are provided, the vibration control device, the vibration control structure, and the vibration control panel are inexpensive and have excellent fire resistance and durability. Can be realized.
Further, since the leaf spring damping unit composed of the spring plate is fixed to the frame member via the reinforcing member, various problems that may occur when directly fixed can be solved all at once.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. First, a vibration control panel according to the present invention will be described.
1A and 1B show a vibration control panel according to an embodiment of the present invention. FIG. 1A is an overall front view, and FIG. 1B is an enlarged view of one vibration control device shown in FIG. FIGS. 2A and 2B are views showing the deformation state of the leaf spring damping unit, respectively.
The damping panel 1 according to the present invention has a configuration in which damping devices 20 are arranged in at least one corner (four corners in this example) of a wooden frame (frame member) 10 that is a rectangular frame member. The wooden frame 10 constitutes a part of a building, and the two horizontal frames 11 and 12 made of wood and the two vertical frames 13 and 14 are connected by a metal fitting, a screw or the like not shown. Configured.
The vibration damping device 20 is attached to the intersection (corner) between the horizontal frames (frame members) 11 and 12 and the vertical frames (frame members) 13 and 14 constituting the building, and absorbs input vibration. It is. Below, although the case where the damping panel 1 is assembled | attached to the corner which comprises the substantially rectangular wooden frame 10 is demonstrated, the application range of this invention is not limited to the corner of a rectangular frame material, A some frame It can be applied to all parts where the material intersects (not limited to orthogonal).
The damping device 20 includes a leaf spring damping unit 21 as a vibration absorbing element that absorbs vibration by converting kinetic energy input from the ground to the wooden frame 10 into thermal energy, a leaf spring damping unit 21, and each And a reinforcing member 50 disposed between the frame member and the frame member. That is, the leaf spring damping unit 21 is fixed to each frame member via the reinforcing member 50.

The leaf spring damping unit 21 is fixed at both ends by the inner side surfaces of the respective corners constituting the wooden frame via a reinforcing member 50 made of a substantially L-shaped steel plate material having a curved intermediate portion 50A. At least one curved long base spring plate 22 and at least one end portion 30a of at least one end portion 22a of the base spring plate 22 and at least one of its inner side surfaces (surfaces that slide against the base spring plate). And at least one curved first rubbing spring plate 30 that is slidably laminated with one surface of the base spring plate 22. The base spring plate 22 is assembled so that the outer peripheral surface 22A curved as shown in the figure faces the inner surface of the corner of the wooden frame 10.
A second rubbing spring plate 40 is further laminated on the outer surface of the first rubbing spring plate 30 (the surface not rubbing against the base spring plate), and one end portion 40a of the second rubbing spring plate 30 is disposed on the first rubbing spring plate 30. It is fixed to one end 30a of the.
As a method of fixing the one end portion 40a of the second rubbing spring plate 40 to the one end portion 30a of the first rubbing spring plate 30, both of them may be directly fixed by screws or the like, or another bracket or the like may be used. Alternatively, the friction spring plates may be fastened and fixed to the base spring plate 22. In short, in any fixing method, the structure for fixing one end portion of the other rubbing spring plate to the one end portion of the base spring plate 22 is entirely within the technical scope of the present invention regardless of direct fixing or indirect fixing. Is included. This also applies to the fixing structures in other embodiments described below.

The base spring plate 22 is a metal plate material obtained by bending a spring steel thin plate with a predetermined curvature, and the horizontal frame 11 and the vertical frame 13 that intersect with each other at the corners of the wooden frame 10 at both ends of the base spring plate 22. It is fixed to an appropriate position (in this example, the inner surface) with screws (bolts), nails or other appropriate fasteners 23. By interposing a plate-like reinforcing member 50 between the base spring plate 22 and each frame member, it is possible to prevent the spring plate from biting into the surface of the frame member and to improve the workability of assembling the vibration damping device. Can be expected. In the reinforcing member 50, the stress applied from each frame member is distributed not only at both ends of the base spring plate 22 but also at fixing points by other fasteners (screws, nails, etc.) 51 that fix the reinforcing member 50 and each frame member. To fix. That is, the reinforcing member 50 is fixed not only at both ends thereof but also at other parts to the respective frame members, so that the metal spring plate constituting the leaf spring damping unit 21 bites into the mounting surface of the wooden frame member. The problem that the vibration control function cannot be exhibited can be solved.
In this example, the length from the central portion C of the base spring plate 22 in the longitudinal direction to the fixed portions at both ends is the same length, but the length from the central portion C to the fixed portions at both ends may be different. The thickness of the base spring plate 22 is 5 mm, for example, and the width is 5 cm.
In this example, one end portion 30a of the first rubbing spring plate 30 is fixed to both surfaces of the base spring plate 22 on the one end portion 22a side by screws 23, and the other end side of each first rubbing spring plate 30 is It has a free end shape so that it can slide relative to the base spring plate in the longitudinal direction when the base spring plate 22 is deformed in the surface direction.

Each first rubbing spring plate 30 has a curvature (curved shape) such that an inner surface (a surface facing the base spring plate) is in contact with both surfaces (an outer peripheral surface 22A and an inner peripheral surface 22B) of the base spring plate. It is a preset curved plate, and in this example, it is made of a metal plate material obtained by bending a spring steel thin plate with a predetermined curvature. Each first sliding spring plate 30 has a curvature so that at least a part thereof comes into contact (including pressure contact) with the outer peripheral surface 22A and the inner peripheral surface 22B of the base spring plate 22 at a time when no external force is applied. Is set. This also applies to other rubbing spring plates described below. Note that the lengths of the first rubbing spring plates 30 arranged with the base spring plate 22 interposed therebetween may be set to be substantially equal, or one may be longer than the other. The thickness and width of the first rubbing spring plate 30 (the same applies to the other rubbing spring plates) may be set to be equal to the base spring plate 22, for example, or may be thinner than the base spring plate. .
Since one end portion is fixed (fixed and arranged in a stacked state) in a state where the first sliding spring plate 30 is slidably stacked on both surfaces of the base spring plate 22, the surface direction of the leaf spring damping unit 21 is fixed. When each first spring plate 30 slides with each surface 22A, 22B of the base spring plate 22 due to stress applied from both sides, energy applied to the wooden frame due to an earthquake or the like can be absorbed and relaxed. At all times, both surfaces of the base spring plate 22 and the inner surface of each first rubbing spring plate 30 may be in full contact with each other or may be in partial contact with each other. .

The curvature of each second rubbing spring plate 40 so that the inner side surface (the surface facing the first rubbing spring plate 30) is in contact with the outer side surface of each first rubbing spring plate 30, respectively. (Curved shape) is a preset curved plate. The second rubbing spring plate 40 is laminated on the outer surface of each first rubbing spring plate 30, and each one end portion 40 a of the first rubbing spring plate 30 with respect to one end portion 30 a of the first rubbing spring plate 30. It is fixed. At this time, the curvature of each second rubbing spring plate 40 is set so as to contact the outer surface of each first rubbing spring plate 30 or press with a predetermined force. Accordingly, the second spring plate 40 slides on the outer surface of each first rubbing spring plate 30 by the stress applied to the plate spring damping unit 21 from both sides in the surface direction, thereby absorbing and relaxing energy. be able to.
The relationship between the friction spring plates 30 and 40 is set so that the lengths of the other friction spring plates 40 positioned on the outermost side are successively shorter than the length of the friction spring plate 30 positioned on the inner side. The other end portions 30b and 40b of the sliding spring plates 30 and 40 are stepped.
That is, the longitudinal dimension of the first rubbing spring plate 30 is made shorter than the longitudinal dimension of the base spring plate 22, while the longitudinal dimension of the second rubbing spring plate 40 is set to the first rubbing spring plate. By making the length shorter than the longitudinal dimension of 30, the other ends of the sliding spring plates 30 and 40 are stepped (or pyramidal). In this way, by laminating the rubbing spring plate on the base spring plate 22 in a stepped shape or a pyramid shape, a predetermined or higher stress is applied while maintaining the strength and durability of the leaf spring damping unit 21 appropriately. In this case, the elastic deformation can be facilitated. Further, by laminating a plurality of spring plates in a multi-stage shape, it is desirable to have a vibration absorbing capacity as a whole of the leaf spring damping unit 21 as a vibration absorbing element that absorbs vibration by converting input kinetic energy into thermal energy. It becomes easy to adjust to the value of.
By applying a preload to the contact surfaces of the two spring plates by always pressing them with a binding member such as a band wound around the outer periphery of the base spring plate 22 and the first sliding spring plate 30 and binding them together. In addition, it may be configured to enhance the responsiveness when an earthquake occurs. Similarly, the first rubbing spring plate 30 and the second rubbing spring plate 40 may be always pressed against each other by a binding member such as a band to apply a preload.

Note that the material, number, and shape of the spring plates to be used can be arbitrarily selected according to the required damping characteristics. That is, in the illustrated embodiment, only the first and second rubbing spring plates 30 and 40 are shown as the rubbing spring plates, but the first and second rubbing spring plates 40 are not illustrated further with respect to the outer surface of each second rubbing spring 40. Of course, the three rubbing springs may be fixedly arranged in a stacked state, or a fourth rubbing spring, etc. may be fixedly arranged in the laminated state on the outer surface of each third rubbing spring. There is no limit to the number of friction springs stacked. In addition, it is preferable that the thickness and material of the base spring plate 22 and the sliding spring plates 30 and 40 are the same in consideration of the number of manufacturing, but the plate thickness and material may be varied as necessary. For example, various arrangements such as making the thickness of the base spring plate 22 the maximum thickness and reducing the thickness of each friction spring plate are possible.
Further, in this example, the vibration damping device 20 is arranged at the four corners of the wooden frame 10, but this is only an example, and the location and manner of assembling the vibration damping device 20 with respect to the wooden frame 10 Various modifications are possible.

In the leaf spring damping unit 21 having the above configuration, as shown in FIGS. 2 (a) and 2 (b) showing the behavior of the damping panel 1, it corresponds to the stresses P1 and P2 from two opposite directions. Energy is absorbed and relaxed by rubbing between the spring plates while elastically deforming, and then the elastic return to the original shape is performed. A broken line in the figure shows a state in which each spring plate is deformed by the stress P1, and when the stress P2 is applied, each spring plate is deformed in the opposite direction.
With this configuration, energy can be absorbed and relaxed by sliding between the spring plates while elastically deforming corresponding to the stresses P1 and P2 from the two opposing directions, and then the elastic return to the original shape can be achieved. It is configured as follows.
This point will be described in more detail. The base spring plate 22 and the sliding spring plates 30 and 40 constituting the leaf spring damping unit 21 are composed of the horizontal frames 11 and 12 and the vertical frames 13 and 14 constituting the damping panel 1. The energy is absorbed in response to the deformation. FIG. 2A shows a deformed state when the stress P1 from one side is applied, and FIG. 2B shows a deformed state when the stress P2 from the other side is applied.
In a stationary state without shaking due to an earthquake or the like, the wooden frame 10 is not deformed, and the base spring plate 22 and the rubbing spring plates 30 and 40 are not deformed as shown in FIGS.

On the other hand, when the vibration control panel 1 vibrates due to an earthquake or the like and stresses P1 and P2 are applied, the wooden frame 10 is deformed and the base spring plate 22 is deformed.
When the earthquake occurs, the upper horizontal frame 11 is displaced relative to the lower horizontal frame 12 in the horizontal direction. Here, when the horizontal frame 11 moves relative to the horizontal frame 12 in the direction of arrow A, the base spring plate 22 having both ends fixed to the vertical frame 13 and the horizontal frame 11 expands and deforms in the B direction. The sliding spring plates 30out, 40out located on the outer peripheral surface side of the base spring plate 22 among the sliding spring plates 30, 40 respectively disposed on both side surfaces of the one end portion 22a of the base spring plate 22 due to the extension deformation of the base spring plate 22. Since the (outer rubbing spring plate group) is deformed in the same direction B, between the contact portions between the base spring plate 22 and the first rubbing spring plate 30out, and between the first rubbing spring plate 30out and the second rubbing spring plate. Relative movement (sliding) and frictional resistance resulting from the relative movement (sliding) occur between the contact portions with the friction spring plate 40out, and energy due to vibration is attenuated. On the other hand, the sliding spring plates 30in and 40in (inner sliding spring plate group) located on the inner peripheral surface side of the base spring plate 22 extended and deformed in the B direction are not compressed and deformed. A large frictional resistance is not generated between the spring plate 30in and the first and second rubbing spring plates 30in and 40in. For this reason, when the base spring plate 22 is deformed in the extension direction B, the first rubbing spring plate 30out and the second rubbing spring plate 40out are deformed and resistance is generated due to frictional resistance, and energy due to vibration is attenuated.

Next, as shown in FIG. 2B, when the horizontal frame 11 moves in the direction C opposite to the arrow A, the base spring plate 22 having both ends fixed to the vertical frame 13 and the horizontal frame 11 in the D direction. Compressive deformation. A sliding spring plate 30in positioned on the inner peripheral surface side of the base spring plate 22 among the sliding spring plates 30 and 40 respectively disposed on both side surfaces of the one end portion 22a of the base spring plate 22 due to compression deformation of the base spring plate 22. 40in also compresses and deforms in the same direction D, so that the contact between the base spring plate 22 and the first rubbing spring plate 30in, and the contact between the first rubbing spring plate 30in and the second rubbing spring plate 40in. Relative movement (sliding) and frictional resistance caused by the relative movement occur between the parts, and energy due to vibration is attenuated. On the other hand, since the sliding spring plates 30out and 40out located on the outer peripheral surface side of the base spring plate 22 which has been compressed and deformed are not compressed and deformed, between the base spring plate 22 and the first sliding spring plate 30out, as well as the first and first sliding spring plates 30out. The two friction spring plates 30out and 40out are separated from each other, and a large frictional resistance is not generated. For this reason, when the base spring plate 22 is compressively deformed in the D direction, resistance is generated by the deformation and frictional resistance of the first rubbing spring plate 30in and the second rubbing spring plate 40in, and the energy due to vibration is attenuated.
For this reason, when the vibration damping panel 1 vibrates, the kinetic energy of the vibration damping panel 1 is converted into thermal energy by the deformation and friction of the spring plates 22, 30, 40 constituting the leaf spring member, and is released into the atmosphere. The vibration of the damping panel 1 is attenuated.

As described above, according to the vibration control panel 1 according to the present example, by installing the vibration control device 20 at the corner of the wooden frame 10 of the building, destructive impacts and vibrations caused by earthquakes and the like can be effectively performed. The building using the damping panel 1 can be made into a damping structure. At this time, since the vibration damping panel 1 uses a leaf spring member formed of a spring steel member as a vibration absorbing element, the manufacturing cost can be lowered and the durability and heat resistance can be improved. it can.
Further, in this example, the vibration damping device 20 is arranged inside the wooden frame 10 to constitute the vibration damping panel 1. However, the vibration damping device 20 of the present invention is arranged on the wooden frame 10 assembled in advance in the building. can do. In this case, it can be applied to vibration control work for existing buildings.
Furthermore, the leaf spring damping unit 21 of the present invention functions not only as a damping function for attenuating the stress generated by an earthquake or the like, but also as an earthquake-resistant member having reinforcement for the wooden frame. That is, the strength of the wooden frame can be improved and the earthquake resistance can be improved by arranging it at the corner of the wooden frame or at the intersection of the vertical frame and the horizontal frame.
In addition, the damping device provided with the leaf spring damping unit of the present invention is lightweight, compact, and inexpensive, so that not only new construction work but also renovation work can be easily assembled. it can. Specifically, even a non-specialist individual can easily attach the vibration damping device purchased at a retail store such as a home center.
The effects of the present invention described above are similarly applied to the following other embodiments.

Next, since the leaf spring damping unit 21 of the present invention is fixed to the surfaces (unit attachment surfaces) of the frame members 11, 12, 13, and 14 via the reinforcing member 50, the base spring plate, Compared to the case where other spring plates are fixed directly to the frame material surface, the metal spring plate will not bite into the wooden frame material when the frame material is deformed by an external force due to an earthquake or the like, and the plate spring The vibration control function by the vibration control unit can be normally exhibited.
In particular, since the reinforcing member 50 is fixed not only at both end portions but also at other portions at least one place to each frame member by the fastener 51, the stress caused by the earthquake is applied to each fixing portion by each fastener 51. It becomes possible to disperse and absorb absorption. In this example, as shown in FIG. 1B, the screws 51 are driven and fixed in two places in the width direction of the reinforcing member 50, but this is only an example, and the number of fixing points and fixing positions by the screws are arbitrary. It is.
The fixing positions of the reinforcing members by the fasteners 51 are concentrated at positions close to both ends of the leaf spring damping unit 21, so that it is possible to more effectively prevent the spring plate from biting into the frame material when the frame material is deformed. However, it is also effective to provide a fixing position by the fasteners 51 by dispersing them at positions away from both end portions of the leaf spring damping unit 21 to achieve a further stress dispersion effect.

Moreover, while fixing both ends of the reinforcing member 50 made of a curved thin steel plate to the frame members 11 and 13 together with the leaf spring damping unit 21, the intermediate portion 50A is separated from the intersecting portion of the frame member. The degree of freedom of deformation of the frame members 11 and 13 constituting the joint is sufficiently ensured. Therefore, vibration energy can be absorbed and relaxed by sliding between the spring plates while allowing deformation of the frame members according to the deformation of the building due to the earthquake. That is, the reinforcing member 50 needs to be configured so as not to disturb the deformation of the joint.
The intermediate portion 50A of the reinforcing member 50 does not need to be curved as illustrated, and may be configured to be inclined at 45 degrees as shown in FIG. 3A, for example.
As shown in FIG. 3 (b), even if the intermediate portion 50A of the reinforcing member 50 has an L-shape bent at 90 degrees, and the intermediate portion 50A is brought into close contact with the intersecting portion, it depends on the spring property of the reinforcing member. When the deformation of the joint is not obstructed, the intermediate portion and the intersecting portion of the reinforcing material may not be separated from each other.

When the vibration damping device 20 of the present invention is fixed to the intersecting portion (joint) of the both frame members 11 and 13 using the fastener 51, the reinforcing member 50 is fixed to the frame member. If the width of the reinforcing member 50 is made wider than the width of each spring plate, a fixing hole is provided in the portion of the reinforcing member 50 protruding from the edge in the width direction of each spring plate, and a screw or the like is fastened. The spring plate does not become an obstacle when the screw is screwed. That is, for example, when the width of the inner surface of each of the frame members 11 and 13 is 105 mm, the space for screwing the reinforcing member 50 by setting the width of the reinforcing member 50 to 90 mm and the width of the spring plate to less than 90 mm. Can be secured.
Alternatively, as shown in FIG. 4, the leaf spring damping unit 21 and the reinforcing member 50 are detachably connected by the fasteners 23 and sold in a connected state at a home center or the like, while at the time of installation, the leaf spring damping is performed. The reinforcing member 50 separated from the unit may be fixed to the frame member alone in advance. That is, when the vibration damping device 20 is attached to a building joint, the reinforcing member 50 is separated by loosening the fastener 23 made of a screw or the like as shown in FIG. The reinforcing member 50 is preceded and fixed at a predetermined position on the inner surface of the frame members 11 and 13 using the fixing hole 50a. Thereafter, the attachment holes provided at both ends of the leaf spring damping unit 21 and the fixing holes 50b at both ends of the reinforcing material are communicated with each other, and the frame members 11 and 13 are fixed using the fasteners 23. In addition, when using a screw as the fastener 23, of course, a washer (washer), a nut, etc. are used as needed.
It should be noted that an adhesive, a fixing clip (not shown), a wire, and other fastenings are previously placed between the spring plates so that the spring plates constituting the leaf spring damping unit 21 do not fall apart during such mounting work. It may be fixed by means.
When the reinforcing material 50 is not provided, that is, when both ends of the leaf spring damping unit 21 are directly screwed to the frame material, the position is slightly shifted from the normal mounting position on the frame material, or the mounting angle is shifted. If it raises, it will become difficult to attach the leaf | plate spring damping unit 21 correctly. It is very inefficient to repeat the work of removing and re-fixing the leaf spring damping member once screwed to finely adjust the mounting position. In particular, since the leaf spring damping unit 21 is heavy and has a complicated shape, it is difficult to ensure positional accuracy during the mounting operation.

On the other hand, according to the present invention, it is possible to precede the work of fixing the light weight and simple shape of the reinforcing member 50 alone at the regular attachment position using the fasteners 51, so that the positioning accuracy can be easily improved. Since the leaf spring damping unit 21 is later fastened to the reinforcing member fixed at an accurate position in this manner using the fastener 23, the positioning accuracy of the leaf spring damping unit is increased. This frees you from trial and error in installation work.
In addition, when performing the work of attaching the leaf spring damping unit 21 in the state where the reinforcing material 50 is assembled to the frame material, the assembling may be performed in consideration of only the positional relationship between the reinforcing material 50 and the frame material. Therefore, it is easy to ensure position accuracy.
Further, when the damping device 20 is completed and shipped and transported at the factory, the leaf spring damping unit 21 and the reinforcing member 50 are securely fixed by the fasteners 23 and packed in a cardboard box. In this case, the reinforcing member 50 and the spring plate can be prevented from being deformed by an impact during transportation or the like even if the cushioning material is not so tightly filled. Therefore, shape retention and handling can be improved.
Further, in the vibration damping device 20 according to the present invention, the metal reinforcing member 50 and the spring plate constituting the leaf spring damping unit 21 are directly fastened. ) And the loosening when the leaf spring damping unit is screwed to the frame member can be prevented.

Next, Fig.5 (a) and (b) are the block diagrams of the reinforcing material which concerns on other embodiment of this invention. Since the reinforcing material according to the above embodiment is a simple band-shaped metal plate material, it has been forced to be fixed to the inner side surfaces of the frame members 11 and 13 using the fasteners 51. For this reason, when attaching the leaf spring damping unit 21 to the joint formed between the frame members, it is more convenient to fix only the reinforcing member 50 alone to the frame member as described in FIG. there were. However, the work of fixing the spring plate group to the frame member via the reinforcing member 50 after fixing the reinforcing member 50 separated from the spring plate to the frame member in advance is complicated.
Therefore, as shown in FIG. 5, a bracket piece 53 is bent from the side of the plate-like reinforcing material body 52, and a fastener 51 such as a screw or nail is attached using a fixing hole 53a provided in the bracket piece 53. If it is configured so as to be driven into the side surface of the frame member, it is not necessary to separate the reinforcing member 50 from the spring plate, and the purchased leaf spring damping unit 21 can be directly attached to the joint of the frame member. That is, by configuring the reinforcing material 50 in this way, it is possible to fix the reinforcing material 50 to the frame material surface (side surface) different from the frame material surface (inside surface) by which the reinforcing material 50 is fixed by the fastener 51, Assembling workability of the vibration damping device can be greatly improved. In addition, by providing a plurality of fixing holes 53a provided in the bracket 53 at the intermediate portion of the reinforcing material, energy due to deformation of the frame material can be distributed to a plurality of locations, and the biting of each spring plate into the frame material can be prevented. it can.
Note that the fastener 23 for fixing both ends of the reinforcing member to the frame member is also advantageous in that it can also serve as the fastener 23 for fixing the leaf spring damping unit to the frame member.

Next, FIG. 6 shows a configuration example of a vibration damping device according to another embodiment of the present invention. This vibration damping device 20 is characterized by a configuration in which the reinforcing material 50 interposed between both ends of the leaf spring vibration damping device 21 and the frame members 11 and 13 is separated into two.
That is, the reinforcing member 50 according to the embodiment of FIG. 6 includes a first reinforcing piece 55 interposed between one end of the leaf spring damping unit 21 and the frame member 11 and the other end of the leaf spring damping unit 21. 2 and a second reinforcing piece 56 interposed between the other frame member 13 and the two reinforcing pieces 55 and 56 are not connected. Between each reinforcement piece 55 and 56 and each frame material 11 and 13, it is being fixed with the fastener 51 in the site | part of at least 1 place or more.
Thus, the reinforcing member 50 does not have to be formed of a single member, and the frame member portions corresponding to both ends of the leaf spring damping unit 21 and the other frame member portions are respectively provided through separate reinforcing pieces. May be fixed.
In addition, you may arrange | position the intermediate member 57 in the cross | intersection part of the frame materials 11 and 13 as shown with a broken line in FIG. The intermediate member 57 is a separate component from the first and second reinforcing pieces 55 and 56, and can exhibit a function of reinforcing while allowing deformation of the intersecting portion of the frame material.
It is good also as a structure which combined the modification shown in FIG. 5, and embodiment of FIG.

Next, FIG. 7 is an explanatory view of another configuration example of the leaf spring damping unit of the present invention, and the leaf spring damping unit 21 according to this embodiment has both inner and outer circumferences at both ends in the longitudinal direction of the base spring plate 22. A characteristic is that the sliding spring plates 30 and 40 are fixedly arranged in a laminated state on the surfaces 22A and 22B, respectively. That is, in the embodiment of FIG. 1, the sliding spring plate is assembled only to the one end portion 22a of the base spring plate 22, but when the friction resistance on the other end portion 22b side of the base spring plate 22 is desired to be sufficiently secured, It is preferable that the friction spring plates 30, 40,... Are sequentially assembled to the end portion 22b. Note that one sliding spring plate 30 may be fixedly disposed in a laminated state on both surfaces of both ends of the base spring plate.
By laminating the friction spring plates on both ends of the base spring plate 22, the function of the leaf spring damping unit 21 of the present invention as an earthquake resistant member can be enhanced.
The structure for assembling the rubbing spring plates 30, 40,... With respect to the base spring plate 22, vibration due to rubbing between the spring plates when the base spring plate 22 is deformed, and the function of absorbing impact energy are described in FIG. The same applies as it is.
As for the configuration and function of the reinforcing member 50, the matters described in FIGS. 1 to 5 can be applied to the present embodiment as they are.

Next, FIGS. 8A and 8B are explanatory diagrams of other configuration examples of the vibration damping device (leaf spring damping unit) of the present invention, respectively.
First, the leaf spring damping unit 21 according to the embodiment of FIG. 8A has a configuration in which a sliding spring plate is fixedly arranged in a stacked state on only one surface of the longitudinal end portion 22a of the base spring plate 22. It is characteristic. That is, in the embodiment of FIG. 1, the rubbing spring plate is assembled to both surfaces of the one end portion 22a of the base spring plate 22, respectively. Depending on various conditions such as the position, it may be sufficient to arrange the rubbing spring plate on only one surface of the one end portion 22a (or the other end portion 22b) of the base spring plate 22. In this manner, when the rubbing spring plate is laminated on only one surface of the base spring plate 22, only the function of attenuating only the stress applied from one direction can be exhibited, but the other corners adjacent to the horizontal direction of the wooden frame 10 In addition, by assembling the leaf spring damping unit 21, both the leaf spring damping units 21 can absorb and relax stresses from different directions.
In this example, the rubbing spring plate is attached to the curved outer peripheral surface 22A of the base spring plate 22, but it may be attached to the inner peripheral surface 22B.
Next, the leaf spring damping unit 21 according to the embodiment of FIG. 8B has a configuration in which the rubbing spring plates are fixedly arranged in a stacked state only on the same surface of the longitudinal end portions 22a and 22b of the base spring plate 22. It is characteristic. In this example, the rubbing spring plate is attached to the inner peripheral surface 22B of the base spring plate 22, but it may be attached to the outer peripheral surface 22A.
The structure for assembling the rubbing spring plates 30, 40,... With respect to the base spring plate 22, vibration due to rubbing between the spring plates when the base spring plate 22 is deformed, and the function of absorbing impact energy are described in FIG. The same applies as it is.
As for the configuration and function of the reinforcing member 50, the matters described in FIGS. 1 to 5 can be applied to the present embodiment as they are.

Next, FIGS. 9A and 9B are diagrams showing a configuration example of a vibration damping device (plate spring damping unit) according to another embodiment of the present invention.
First, the leaf spring damping unit 21 according to FIG. 9A has one or more sheets on one surface (22B) of the one end portion 22a of the base spring plate 22 and on the other surface (22A) of the other end portion 22b. The sliding spring plate is characterized by a fixed arrangement in a slidable laminated state.
That is, in this example, the end portions are fixed in a state in which the rubbing spring plates 30 and 40 are sequentially laminated on different surfaces of both ends of the base spring plate 22, and stresses P1 from two opposite directions are fixed. Energy absorption and relaxation by sliding between the spring plates while elastically deforming corresponding to P2, and subsequent elastic return to the original shape are possible.
The leaf spring damping unit 21 according to FIG. 9 (b) is a modification of FIG. 9 (b), and includes at least two sliding spring plates opposed to each other with the base spring plate 22 interposed therebetween, two in this example. It is characteristic that the first sliding spring plate 30 is configured to be long so that the other end portions 30b overlap each other. Even if comprised in this way, energy absorption and relaxation by sliding between the spring plates while elastically deforming corresponding to the stresses P1 and P2 from opposite two opposite directions, and subsequent elasticity to the original shape It is configured to be able to return.
The structure for assembling the rubbing spring plates 30, 40,... With respect to the base spring plate 22, vibration due to rubbing between the spring plates when the base spring plate 22 is deformed, and the function of absorbing impact energy are described in FIG. The same applies as it is.
As for the configuration and function of the reinforcing member 50, the matters described in FIGS. 1 to 5 can be applied to the present embodiment as they are.

As described above, in the present invention, the leaf spring damping unit 21 is indirectly fixed to the frame member via the reinforcing member 50, so that the spring plate is bitten by direct contact between the spring plate and the frame member. It becomes possible to cancel and to make the vibration control function work normally. That is, when the leaf spring damping unit is directly fixed to the frame member, the spring plate constituting the leaf spring damping unit locally bites into the frame member surface when the frame member is deformed by an earthquake or the like. It is assumed that the vibration control device cannot operate normally, but the present invention can solve such a problem.
In addition, when attaching the damping device, if the reinforcing material is assembled to the leaf spring damping unit in advance, the attachment of the damping device is mainly performed by fixing the reinforcing material to the frame material. Since this is almost completed, workability can be improved.
In addition, when fixing the leaf spring damping unit to the frame material, not only the both ends in the longitudinal direction but also other parts are used to fix the stress when the frame material is deformed. It can be dispersed and dispersed in the region to prevent the spring plate from biting into the frame material.
It is preferable in terms of vibration damping effect that the relative displacement of the frame members to which external force is applied is not restricted when the reinforcing material is arranged across the crossing portion (joint) of the frame materials. Therefore, it is effective to separate the intermediate portion of the reinforcing material from the intersecting portion.
When it is difficult to attach the fastener to the frame material surface to which the reinforcing material is attached in construction, the fastener may be configured to be fixed to the other frame material surface.
In order to prevent biting into the frame material that is likely to occur at both ends when the both ends of the leaf spring damping unit are fixed to the frame material, the reinforcing material does not necessarily have to extend across both frame materials Instead, it may be divided into two.

Next, a vibration damping device according to another embodiment of the present invention will be described with reference to FIGS.
FIG. 10A is an overall front view of the vibration control panel according to one embodiment of the present invention, and FIG. 10B is an enlarged perspective view of one vibration control device shown in FIG. FIG. 3 is a front view showing a configuration of a leaf spring damping unit. 12 (a), (b), (c), (d), and (e) are a front view, a plan view, a configuration diagram of a base spring plate, a configuration diagram of a rubbing spring plate, and a configuration example of a leaf spring damping unit; It is sectional drawing of a screwing part, FIG. 13 (a) and (b) is explanatory drawing which shows the behavior of a damping panel.
The same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description of the overlapping configuration, action, and effect is omitted. That is, the members represented by the same reference numerals and the same names among the embodiments have common features, functions and effects.
The damping device 20 includes a leaf spring damping unit 21 as a vibration absorbing element that absorbs vibration by converting kinetic energy input from the ground to the wooden frame 10 into thermal energy, a leaf spring damping unit 21, and each And a reinforcing member 50 disposed between the frame member and the frame member. That is, the leaf spring damping unit 21 is fixed to each frame member via the reinforcing member 50.
In the example of FIG. 10A, the case where the vibration damping device 20 is assembled to the two upper corners of the wooden frame 10 is shown, but it may be assembled to the lower corner.

Although the reinforcing material 50 is not necessarily essential, the present embodiment will be described based on a configuration example in which the reinforcing material is used in combination.
The leaf spring damping unit 21 includes an inner portion of each corner (frame members 11 and 13) constituting a wooden frame via a reinforcing member 50 made of a substantially L-shaped steel plate member having a curved intermediate portion 50A. At least one curved long base spring plate 60 fixed at both ends by the side surfaces and the intermediate portion 71 supported by the longitudinal intermediate portion 61 of the base spring plate 60, the inner side surface (slids against the base spring plate). And at least one curved rubbing spring plate (first rubbing spring plate) 70 that is slidably laminated with one surface of the base spring plate.
In the present embodiment, an example is shown in which the rubbing spring plates 70 are arranged on the outer side surface 60A and the inner side surface 60B of the base spring plate 60, but the rubbing spring plates are arranged on only one surface of the base spring plate. May be.
The base spring plate 60 is a metal plate material obtained by bending a spring steel thin plate with a predetermined curvature, and the horizontal frame 11 and the vertical frame 13 that intersect each other at the corners of the wooden frame 10 at both ends of the base spring plate 60. It is fixed to an appropriate position (in this example, the inner surface) with screws (bolts), nails or other appropriate restraining members.
In this example, the length from the central portion of the base spring plate 60 in the longitudinal direction to the both end fixing portions is the same length, but the length from the center portion to both end fixing portions may be different. The thickness of the base spring plate 60 is, for example, 5 mm and the width is 5 cm.

The sliding spring plate 70 is a curved plate whose curvature (curved shape) is set in advance so that the inner side surface (the surface facing the base spring plate) is in contact with both surfaces of the base spring plate. It consists of a metal plate material obtained by bending a steel thin plate with a predetermined curvature. The curvature of each sliding spring plate 70 is set so that at least a part thereof contacts (including pressure contact) the outer peripheral surface and the inner peripheral surface of the base spring plate 60 when stationary without external force. This applies similarly to other sliding spring plates described later. It should be noted that the lengths of the rubbing spring plates 70 arranged with the base spring plate 60 interposed therebetween may be set to be substantially equal, or one may be longer than the other. The thickness and width of the rubbing spring plate 70 (the same applies to other rubbing spring plates) may be set to be equal to the base spring plate 60, for example, or may be thinner than the base spring plate.
Since the intermediate portion 71 of the rubbing spring plate 70 is supported by the intermediate portions 61 on both sides of the base spring plate 60 and the portions other than the intermediate portion can be rubbed, the stress applied from both sides in the surface direction of the leaf spring damping unit 21 Thus, each sliding spring plate slides on both surfaces of the base spring plate 60, so that energy applied to the wooden frame due to an earthquake or the like can be absorbed and reduced. At all times, both surfaces of the base spring plate 60 and the inner surface of each first rubbing spring plate 70 may be in contact with each other in a fully contacted manner or may be in partial contact with each other. .
Here, the intermediate portions 61 and 71 mean the substantially central portions in the longitudinal direction of the base spring plate 60 and the rubbing spring plate 70, but it is not necessary to be a central portion in a strict sense in terms of dimensions. A portion that is slightly displaced in any one direction from the central portion in the longitudinal direction is also included in the intermediate portion. In short, by supporting the intermediate portion 71 of the rubbing spring plate 70 by the intermediate portion 61 of the base spring plate 60 (including a configuration in which the rubbing spring plate 70 can be fixed and slid in the longitudinal direction), the rubbing spring is generated when the frame material is deformed due to an earthquake or the like. It is only necessary that both end portions in the longitudinal direction of the plate 70 (non-intermediate portion = an arm portion 72 described later) be slidable against the surface of the base spring plate 60.

The base spring plate 60 is assembled so that the outer peripheral surface 60 </ b> A that is curved as shown in the drawing faces the inner surface of the corner of the wooden frame 10. In this example, the width of both ends of the base spring plate 60 is made narrower than other parts to increase the exposed area of the reinforcing material 50, thereby securing a reinforcing material fixing space by the fastener 66. This is an example. However, both ends of the base spring plate and the reinforcing member 50 are fastened to the frame member with a fastener without narrowing the width of both ends of the base spring plate (or wider than other portions). It may be configured.
Each first rubbing spring plate 70 has its intermediate portion 71 fastened to the intermediate portion 61 of the base spring plate 60 by screws 80 and nuts 81, while each arm portion extending from the intermediate portion 71 toward both longitudinal ends. The inner surface of the (non-intermediate portion) 72 is made to face (contact) the outer peripheral surface 60A and the inner peripheral surface 60B of the base spring plate.
As shown in FIGS. 12B and 12C, the base spring plate 60 has round holes 62 for fastening screws with the reinforcing plate 50 on the plate surfaces at both ends in the longitudinal direction, and the intermediate portion 61 has a first sliding plate. A round hole 63 for fastening the intermediate portion 71 of the friction spring plate 70 with a screw is provided, and a portion excluding the intermediate portion 61, that is, an appropriate position of each arm portion 64, corresponds to the first friction spring plate 70. A round hole 65 for fastening the part with a screw is formed.

On the other hand, the first rubbing spring plate 70 has a round hole 73 communicating with the round hole 62 at the intermediate position of the base spring plate 60 at the intermediate position 71 as shown in FIG. In each direction, a long hole 74 communicating with the round hole 65 of the base spring plate 60 is formed.
As shown in FIGS. 3A and 3E, the round hole 62 and the round hole 73 are fastened by a screw 80 and a nut 81, and each round hole 65 and each long hole 74 are a screw 82 and a nut as a restraining member. 83 and a spring washer. That is, the screw 80 is inserted so as to communicate with the round hole 62 and the round hole 73 and fastened with the nut 81, whereby the intermediate position 71 of the first rubbing spring plate 70 is set with respect to the intermediate position 61 of the base spring plate 60. On the other hand, the screws 72 are inserted into the circular holes 65 and the long holes 74 in communication with each other and fastened with a predetermined fastening force by the nut 83 via the spring washer, whereby each arm 72 is opposed to the opposing base spring plate 60. It is supported so as to be slidable (movable) in the longitudinal direction with respect to the surface. The arm member 72 of the first rubbing spring plate 70 is always pressed against the surface of the base spring plate 60 with a predetermined force by the restraining members 82 and 83, so that the first spring plate is against the base spring plate when an earthquake occurs. When the arm portion of the sliding spring plate is displaced in the longitudinal direction, the seismic energy can be absorbed and reduced.
In addition, by providing a long hole similar to the long hole 74 at the intermediate position 71 of the first rubbing spring plate 70, the first rubbing spring plate 70 as a whole with respect to the base spring plate 60 (the length of the long hole). It may be configured to be displaceable in the longitudinal direction (within the range of the direction length). That is, the intermediate portion 71 of the first rubbing spring plate may be completely fixed to the intermediate portion 61 of the base spring plate, or may be supported so as to be movable in the longitudinal direction.

In this example, since the head of the screw 82 is located on the frame material side, in order to avoid interference with the inner surface of the frame material, a recess for fitting the screw head to the inner surface of the frame material Is formed in advance.
In the above embodiment, the screw 82 and the nut 83 are used as a restraining member that presses the arm portion 72 (non-intermediate portion) of the rubbing spring plate 70 relative to the base spring plate 60 so as to be relatively displaceable in the longitudinal direction. However, this is only an example, and a binding member such as a metal band that wraps around the outer periphery of the arm portion 72 of the rubbing spring plate 70 and the base spring plate 60 and presses the two members together may be used. .
In the leaf spring damping unit 21 having the above configuration, as shown in FIGS. 13A and 13B showing the behavior of the damping panel 1, it corresponds to the stresses P1 and P2 from the two opposite directions. Energy is absorbed and relaxed by rubbing between the spring plates while elastically deforming, and then the elastic return to the original shape is performed. A broken line in the figure shows a state in which each spring plate is deformed by the stress P1, and when the stress P2 is applied, each spring plate is deformed in the opposite direction.
With this configuration, energy can be absorbed and relaxed by sliding between the spring plates while elastically deforming corresponding to the stresses P1 and P2 from the two opposing directions, and then the elastic return to the original shape can be achieved. It is configured as follows.

This point will be described in more detail. The base spring plate 60 and the sliding spring plates 70 constituting the leaf spring damping unit 21 are deformed from the horizontal frames 11 and 12 and the vertical frames 13 and 14 constituting the damping panel 1. Absorb energy in response to. FIG. 13A shows a deformed state when a stress P1 from one side is applied, and FIG. 13B shows a deformed state when a stress P2 from the other side is applied.
In a stationary state where there is no shaking due to an earthquake or the like, the wooden frame 10 is not deformed, and the base spring plate 60 and the image-sliding spring plate 70 are not deformed as shown in FIGS. 10 (a) and 10 (b).
On the other hand, when the vibration control panel 1 vibrates due to an earthquake or the like and stresses P1 and P2 are applied, the wooden frame 10 is deformed and the base spring plate 60 is deformed.
When the earthquake occurs, the upper horizontal frame 11 is displaced relative to the lower horizontal frame 12 in the horizontal direction. Here, when the horizontal frame 11 moves relative to the horizontal frame 12 in the direction of arrow A, the base spring plate 60 having both ends fixed to the vertical frame 13 and the horizontal frame 11 expands and deforms in the B direction. Due to the extension deformation of the base spring plate 60, the sliding spring plate 70out (outside rubbing) located on the outer peripheral surface 60A side of the base spring plate 60 among the rubbing spring plates 70 arranged on both surfaces 60A and 60B of the base spring plate 60, respectively. Since the spring plate) is deformed in the same direction B, a relative movement (sliding) and a frictional resistance caused by the relative movement (sliding) occur between the contact portions of the base spring plate 60 and the first sliding spring plate 70out, Attenuates energy from vibration. On the other hand, the rubbing spring plate 70in (inner rubbing spring plate) located on the inner peripheral surface side of the base spring plate 60 expanded and deformed in the B direction is not compressed and deformed, and therefore the base spring plate 60 and the first rubbing spring plate 70in. And a large frictional resistance does not occur. For this reason, when the base spring plate 60 is deformed in the extending direction B, resistance is generated due to deformation of the first rubbing spring plate 70out and friction with the base spring plate, and energy due to vibration is attenuated.

Next, as shown in FIG. 13B, when the horizontal frame 11 moves in the direction C opposite to the arrow A, the base spring plate 60 having both ends fixed to the vertical frame 13 and the horizontal frame 11 in the D direction. Compressive deformation. Due to the compressive deformation of the base spring plate 60, the rubbing spring plate 70in located on the inner peripheral surface side of the base spring plate 60 among the rubbing spring plates 70 respectively disposed on both surfaces 60A and 60B of the base spring plate 60 is also in the same direction D. In order to compressively deform, relative movement (sliding) and frictional resistance resulting from the relative movement (sliding) occur between the contact portions of the base spring plate 60 and the first rubbing spring plate 70in, and energy due to vibration is attenuated. On the other hand, since the sliding spring plate 70out located on the outer peripheral surface side of the base spring plate 60 that has been compressed and deformed is not compressed and deformed, the base spring plate 60 and the first sliding spring plate 70out are separated from each other, and a large frictional resistance is obtained. Does not occur. For this reason, when the base spring plate 60 is compressively deformed in the D direction, resistance is generated by the deformation of the first sliding spring plate 70in and the friction with the base spring plate, and the energy due to vibration is attenuated.
For this reason, when the damping panel 1 vibrates, the kinetic energy of the damping panel 1 is converted into thermal energy by the deformation and friction of each spring plate 70 constituting the leaf spring member, and is released into the atmosphere. The vibration of is attenuated.
The configuration, operation, and effects of the reinforcing member 50 described in FIGS. 1 to 7 are similarly applied to the embodiments of FIGS. 10 to 13.

In the above embodiment, a configuration example in which one sliding spring plate (first sliding spring plate) 70 is arranged on both surfaces of one base spring plate 60 is shown. However, the first sliding spring plate 70 is shown. It is also effective to stack the second and third rubbing spring plates in a multi-stage shape on the outer side.
That is, FIG. 14 is a diagram illustrating the configuration of a multi-plate structure leaf spring damping unit and the configuration of each sliding spring plate. This leaf spring damping unit 21 is a first sliding contact with the base spring plate 60. An intermediate portion of the second rubbing spring plate, comprising: a spring plate 70; and a second rubbing spring plate 90 in which at least a part of the inner surface is slidably laminated with respect to the outer side surface of the first spring plate. The structure which supported 91 by the intermediate part 61 of the base spring board is characteristic. As means for supporting the intermediate portion 91 of the second rubbing spring plate by the intermediate portion of the base spring plate, for example, a screw 80 and a nut 81 are used. In this case, the base spring plate 60, the first rubbing spring plate 70, and the second rubbing spring plate 90 are fastened together by the screw 80 and the nut 81.
On the other hand, the arm portion (non-intermediate portion) 92 of the second rubbing spring plate 90 is assembled by a restraining member so as to rub against the first rubbing spring plate 70. That is, as shown in FIG. 14, the second rubbing spring plate 90 has a round hole 95 in the intermediate portion 91 and an elongated hole 96 in the arm portion 92. Further, the first rubbing spring plate 70 has a long hole 75 at a position corresponding to the long hole 96 of the second rubbing spring plate.

In the above embodiment, the first and second sliding spring plates are laminated on both side surfaces of the base spring plate 60, respectively. However, the first and second sliding plates are provided only on one surface of the base spring plate 60. A friction spring plate may be arranged, or the first and second friction spring plates may be arranged on one surface while the first and second friction spring plates are arranged on the other surface. Good.
Although not particularly illustrated, a third rubbing spring plate and a fourth rubbing spring plate may be sequentially laminated on the outer surface of the second rubbing spring plate 90. The structure for supporting the third rubbing spring plate or the fourth rubbing spring plate with respect to the base spring plate is the same as the relationship between the base spring plate and the second rubbing spring plate.
In addition, when the structure in which the other friction spring plates are laminated in a multi-stage manner on the outside of the first friction spring plate in this way, the length of each of the friction spring plates is positioned on the outermost side. It is preferable that the length is longer than the length of the other rubbing spring plates, and the rubbing spring plates are laminated so that both end portions are stepped.
In the present invention, handleability can be improved by unitizing the reinforcing material, the base spring plate, and the rubbing spring plate in advance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a vibration damping panel according to an embodiment of the present invention, in which (a) is an overall front view and (b) is an enlarged view of the vibration damping device shown in (a). (A) And (b) is a figure which shows the deformation | transformation state of a leaf | plate spring damping unit, respectively. (A) And (b) is a figure which shows the other structural example of a reinforcing material. (A) And (b) is a disassembled perspective view of an example of the leaf | plate spring damping unit of this invention, and a figure which shows an assembly | attachment state. (A) And (b) is a block diagram of the reinforcing material which concerns on other embodiment of this invention. It is a figure which shows the structural example of the damping device which concerns on other embodiment of this invention. It is explanatory drawing of the other structural example of the leaf | plate spring damping unit of this invention. (A) And (b) is explanatory drawing of the other structural example of the damping device (plate spring damping unit) of this invention, respectively. (A) And (b) is a figure which shows the structural example of the damping device (leaf spring damping unit) which concerns on other embodiment of this invention. (A) is the whole front view of the damping panel which concerns on one Embodiment of this invention, (b) is an expansion perspective view of one damping device shown in (a). It is a front view which shows the structure of a leaf | plate spring damping unit. (A), (b), (c), (d), and (e) are a front view, a plan view, a configuration diagram of a base spring plate, a configuration diagram of a friction spring plate, and screw fixings showing a configuration example of a leaf spring damping unit. It is sectional drawing of a part. (A) And (b) is explanatory drawing which shows the behavior of a damping panel. It is a structure explanatory drawing of the structure of the leaf | plate spring damping unit of a multi-plate structure, and each sliding spring board.

  DESCRIPTION OF SYMBOLS 1 ... Damping panel, 10 ... Wooden frame, 11, 12 ... Horizontal frame, 13, 14 ... Vertical frame, 13, 14 ... Vertical frame, 20 ... Damping device, 21 ... Plate spring damping unit, 22 ... Base spring plate 60a ... one end, 22b ... other end, 24 ... pedestal, 30 ... first rubbing spring plate, 40 ... second rubbing spring plate, 50 ... reinforcing material, 53 ... bracket piece, 55, 56 ... reinforcement One piece, 60 ... base spring plate, 61 ... intermediate portion, 62 ... arm portion, 70 ... rubbing spring plate (first rubbing spring plate), 71 ... intermediate portion, 72 ... arm portion, 80 ... screw, 81 ... nut , 82 ... Screws, 83 ... Nuts, 90 ... Second rubbing spring plate, 91 ... Intermediate part, 92 ... Arm part

Claims (10)

A vibration damping device including a leaf spring vibration damping unit as a vibration absorbing element attached to an intersection of a plurality of frame members constituting a building,
The leaf spring damping unit supports an intermediate portion by at least one curved base spring plate whose both ends are fixed to the one frame member and the other frame member, and a longitudinal intermediate portion of the base spring plate. And at least one rubbing spring plate laminated so that at least a part of the inner side surface is slidable on one surface of the base spring plate ,
The rubbing spring plate has an intermediate portion fixed to a longitudinal intermediate portion of the base spring plate,
A restraining member that presses a portion excluding the intermediate portion of the rubbing spring plate in a longitudinally displaceable manner relative to the base spring plate;
The restraining member is a screw and a nut that penetrate the base spring plate and the rubbing spring plate, and the screw is inserted and fixed in a round hole provided in the base spring, while a length provided in the rubbing spring plate. Loosely fit in the hole,
A vibration damping device, wherein the rubbing spring plates are arranged on both surfaces of the base spring plate, respectively . A vibration damping device including a leaf spring vibration damping unit as a vibration absorbing element attached to an intersection of a plurality of frame members constituting a building,
The leaf spring damping unit supports an intermediate portion by at least one curved base spring plate whose both ends are fixed to the one frame member and the other frame member, and a longitudinal intermediate portion of the base spring plate. And at least one rubbing spring plate laminated so that at least a part of the inner side surface is slidable on one surface of the base spring plate,
The rubbing spring plate has an intermediate portion fixed to a longitudinal intermediate portion of the base spring plate,
A restraining member that presses a portion excluding the intermediate portion of the rubbing spring plate in a longitudinally displaceable manner relative to the base spring plate;
The restraining member is a screw and a nut that penetrate the base spring plate and the rubbing spring plate, and the screw is inserted and fixed in a round hole provided in the base spring, while a length provided in the rubbing spring plate. Loosely fit in the hole,
The leaf spring damping unit includes a first rubbing spring plate that contacts the base spring plate, and at least a part of an inner surface of the first rubbing spring plate that is slidable on the outer side surface of the first rubbing spring plate. A vibration damping device comprising a second rubbing spring plate, wherein an intermediate portion of the second rubbing spring plate is supported by an intermediate portion of the base spring plate . The rubbing spring plate disposed on both sides of the base spring plate,
A first rubbing spring plate in contact with the base spring plate, and a second rubbing spring plate in which at least a part of the inner side surface is slidably laminated with respect to the outer side surface of the first rubbing spring plate. provided, the vibration damping device of the mounting serial to claim 1, characterized in that supporting the intermediate portion of the second sliding spring plate by an intermediate portion of the Besubane plate. A third rubbing spring plate laminated on at least a part of the inner side surface with respect to the outer surface of the second rubbing spring plate so as to be rubbed; It is supported by the middle part of the base spring plate and, if necessary, in a laminated state in which the fourth and subsequent rubbing spring plates can be sequentially rubbed against the outer surface of the third rubbing spring plate. 4. The vibration damping device according to claim 2, wherein the vibration damping device is arranged . The length of each of the rubbing spring plates is longer than the length of the other rubbing spring plates positioned on the nearest outer side, and both end portions of each of the rubbing spring plates are stacked so as to be stepped. The vibration damping device according to claim 2, 3, or 4 . The damping device according to any one of claims 1 to 5, further comprising a reinforcing member interposed between the leaf spring damping unit and each frame member . When at least one rubbing spring plate is fixedly disposed on both surfaces of the base spring plate in a slidable laminated state, the length of each rubbing spring plate is shorter than that of the base spring plate. The vibration damping device according to any one of claims 1, 3 to 6 . The vibration damping device according to any one of claims 1 to 7, wherein a thickness or / and a width of the base spring plate are different from those of the sliding spring plate . A damping structure according to any one of claims 1 to 8, wherein the damping device according to any one of claims 1 to 8 is arranged at an intersection between a horizontal frame and a vertical frame constituting a building . A vibration damping panel comprising: a substantially rectangular frame member; and the vibration damping device according to any one of claims 1 to 8 disposed at at least one corner of the frame member .

Images