KR102411496B1 - Elastic base for preventing rollover and its manufcturing method - Google Patents

Abstract

The present invention relates to an elastic bearing installed on a bridge, and the elastic bearing for preventing rollover according to the present invention includes an upper plate fixed to an upper structure; a lower plate installed to face the upper plate and fixed to the lower structure; an elastic body interposed between the upper plate and the lower plate to elastically support the load transmitted from the upper structure; an upper sealing material blocking plate installed on the lower surface of the upper plate and spaced apart from each other by a predetermined distance along the periphery of the elastic body; a lower sealing agent blocking plate installed on the upper surface of the lower plate and spaced apart from each other by a predetermined distance along the circumference of the elastic body; and a sealing agent injected along the upper periphery of the upper sealing agent and the side surface of the elastic body, and injected along the lower periphery of the lower sealing agent and the side surface of the elastic body.

Description

Elastic bearing for preventing rollover and its manufacturing method {ELASTIC BASE FOR PREVENTING ROLLOVER AND ITS MANUFCTURING METHOD}

The present invention relates to an elastic support for preventing roll-over, and more particularly, to an elastic support for effectively preventing roll-over through injection of a sealing agent.

In general, the elastic bearing is installed between an upper structure such as a bridge top plate and a lower structure such as a pier supporting it to secure support safety with sufficient rigidity vertically, while horizontally providing energy with sufficient deformation capacity and energy dissipation capacity. A device that allows absorption.

When such elastic bearings are used in bridges, it is possible to properly respond to factors that constantly cause the relative displacement and load of the deck and piers. For example, by appropriately preparing for the displacement and load of the bridge deck caused by factors such as dynamic load according to vehicle traffic, changes in the length of the deck due to seasonal and temperature changes, and impact force due to earthquakes, ultimately collapse of the whole or part of the bridge can be prevented

1 is a reference cross-sectional view for explaining a problem caused by a roll-over phenomenon in a conventional elastic bearing.

As shown, the conventional elastic bearing elastically supports the load of the upper plate (1), lower plate (2), and the upper plate of the bridge fixed to the pier and upper plate of the bridge as a structure by an anchor, and the horizontal direction of the upper plate. It consists of an elastic body (3) to allow displacement.

The conventional elastic bearing allows horizontal displacement of the bridge deck while elastically supporting the bridge deck by the above configuration, while absorbing the sudden energy transferred instantaneously during an earthquake to prevent the bridge from collapsing. there was.

However, when the elastic body 3 moves (shear deformation), the end of the rubber forming the elastic body 3 is rolled up and floats between the upper plate 1 and the elastic body 3, and the elastic body 3 and the lower plate 2 phenomenon, that is, a roll-over phenomenon occurs.

The roll-over phenomenon of the elastic body 3 has a problem in that the quality of the product deteriorates and rust occurs due to exposure of the reinforcing plate inside the elastic body 3 to the atmosphere, thereby causing deterioration in durability.

Korean Patent Publication No. 10-2009-0112312 (2009.10.28.) Korean Patent Registration No. 10-0831893 (2008.05.19.)

The present invention has been devised to solve the above problems, and an object to be solved in the present invention is to provide an elastic support that effectively prevents rollover through injection of a sealing agent.

An elastic support for preventing rollover according to the present invention for achieving the above object includes an upper plate fixed to an upper structure; a lower plate installed to face the upper plate and fixed to the lower structure; an elastic body interposed between the upper plate and the lower plate to elastically support the load transmitted from the upper structure; an upper sealing material blocking plate installed on the lower surface of the upper plate and spaced apart from each other by a predetermined distance along the circumference of the elastic body; a lower sealing agent blocking plate installed on the upper surface of the lower plate and spaced apart from each other by a predetermined distance along the circumference of the elastic body; and a sealing agent injected along the upper periphery of the upper sealing agent and the side surface of the elastic body, and injected along the lower periphery of the lower sealing agent and the side surface of the elastic body.

In addition, in the elastic support for preventing rollover according to the present invention, an upper end plate is formed on the upper end of the inner end of the elastic body, a lower end plate is formed on the lower end of the inner portion of the elastic body, and the upper sealing plate is raised to a predetermined height from the lower end of the upper plate. formed, and the lower sealing agent may be formed at a predetermined height from an upper end of the lower plate.

In addition, in the elastic support for preventing rollover according to the present invention, an upper sealing agent inlet groove is formed on the lower surface of the upper plate along the inner surface of the upper sealing agent blocking plate, and the upper sealing agent inlet groove is a space in a portion of the upper end of the side of the elastic body is formed to ensure this, the sealing agent injected into the upper sealing agent internal groove has an L-shape, and a lower sealing agent internal intake groove is formed on the upper surface of the lower plate along the inner surface of the lower sealing agent blocking plate, and the The lower sealing agent internal groove is formed to secure a space in a portion of the lower end of the side of the elastic body, and the sealing agent injected into the lower sealing agent internal groove has an L-shape.

In addition, in the elastic bearing for preventing rollover according to the present invention, an upper wedge is formed on the lower surface of the upper plate in the longitudinal direction of the bridge, and a lower wedge corresponding to the upper wedge is formed on the upper surface of the lower plate in the longitudinal direction of the bridge. is formed, and cross-sections of the lower end surface of the upper wedge and the upper surface of the lower wedge may be formed in a step shape.

A method of manufacturing an elastic support for preventing rollover according to the present invention for achieving the above object includes the steps of preparing an upper plate, a lower plate, and an elastic body; installing an upper sealing material blocking plate on the lower surface of the upper plate to be spaced apart from each other by a predetermined distance along the circumference of the elastic body; installing a lower sealing agent blocking plate on the upper surface of the lower plate to be spaced apart from each other by a predetermined distance along the circumference of the elastic body; coupling the elastic body and the lower plate; injecting a sealing agent along the lower periphery of the lower sealing agent blocking plate and the side of the elastic body; coupling the elastic body and the upper plate; and injecting a sealing agent along the upper periphery of the upper sealing agent blocking plate and the upper end of the side surface of the elastic body.

In addition, in the method for manufacturing an elastic support for preventing rollover according to the present invention, an upper end plate is formed at the upper end inside the elastic body, a lower end plate is formed at the lower end inside the elastic body, and the upper sealing blocking plate is formed with the upper end plate and It may be formed at the same height, and the lower sealing agent may be formed at the same height as the lower end plate.

In addition, in the method for manufacturing an elastic support for preventing rollover according to the present invention, after the step of preparing the upper plate, the lower plate and the elastic body, an upper sealing agent inlet groove is formed on the lower surface of the upper plate along the inner surface of the upper sealing agent blocking plate. an upper sealing agent inner groove forming step of forming the upper sealing agent inner groove to secure a space in a portion of an upper end of the side surface of the elastic body so that the sealing material has an L-shape; and forming a lower sealing agent inlet groove on the upper surface of the lower plate along the inner surface of the lower sealing agent blocking plate, and securing the space in a portion of the lower end of the side of the elastic body so that the sealing agent has an L-shape. The method may further include a step of forming a lower sealing agent inner groove to be formed.

In addition, the manufacturing method of the elastic bearing for preventing roll-over according to the present invention includes the steps of installing an upper wedge on the lower surface of the upper plate in the longitudinal direction of the bridge; and installing a lower wedge corresponding to the upper wedge along the longitudinal direction of the bridge on the upper surface of the lower plate, wherein the cross-section of the lower surface of the upper wedge and the upper surface of the lower wedge is in a step shape can be formed

The elastic support for preventing roll-over according to the present invention can prevent the roll-over phenomenon that occurs when the end of the rubber forming the elastic body is rolled up when the elastic body is moved (shear deformation).

The elastic bearing for preventing roll-over according to the present invention prevents the roll-over phenomenon, prevents deterioration of product perfection due to the roll-over phenomenon, and prevents rust from occurring by suppressing exposure to the air of the reinforcing plate inside the elastic body to improve durability can do.

The elastic bearing for preventing rollover according to the present invention can reduce the width of the upper plate and the lower plate compared to the conventional elastic bearing due to the structural characteristics of the wedge, thereby improving economic efficiency.

1 is a view for explaining a problem caused by a roll-over phenomenon in a conventional elastic bearing
Figure 2 is a perspective view showing a part of the elastic bearing for preventing roll-over according to the present invention;
3 and 4 are side views of an elastic support for preventing rollover according to the present invention;
5 is an enlarged enlarged view of a part of the elastic bearing for preventing rollover according to the present invention;
6 is an enlarged operation state diagram of a part of the elastic support for preventing rollover according to the present invention;
7 is a configuration diagram of an elastic support for preventing roll-over including a wedge according to the present invention;
8 to 10 are flowcharts of a method of manufacturing an elastic bearing for preventing rollover according to the present invention;

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be

On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate that a feature, number, process, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the existence or addition of numbers, processes, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with the meanings in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. In addition, if there is no other definition in the technical terms and scientific terms used, it has the meaning commonly understood by those of ordinary skill in the art to which this invention belongs, and the summary of the present invention in the following description and accompanying drawings Descriptions of known functions and configurations that may be unnecessarily obscure will be omitted. The drawings introduced below are provided as examples so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Accordingly, the present invention is not limited to the drawings presented below and may be embodied in other forms. Also, like reference numerals refer to like elements throughout. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible.

Figure 2 is a perspective view showing a part of the elastic support for preventing roll-over according to the present invention, Figures 3 and 4 are side views of the elastic support for preventing roll-over according to the present invention, Figure 5 is the elastic support for preventing roll-over according to the present invention Part of the enlarged view, Figure 6 is an enlarged operation state diagram of a part of the elastic bearing for preventing roll-over according to the present invention.

2 to 5 , the elastic support for preventing rollover according to the present invention includes an upper plate 100 fixed to an upper structure; The lower plate 200 is installed to face the upper plate 100 and fixed to the lower structure; an elastic body 300 interposed between the upper plate 100 and the lower plate 200 to elastically support the load transmitted from the upper structure; Doedoe installed on the lower surface of the upper plate 100, the upper sealing agent blocking plate 110 is installed spaced apart a predetermined distance along the circumference of the elastic body (300); Doedoe installed on the upper surface of the lower plate 200, the lower sealing agent blocking plate 210 is installed spaced apart a predetermined distance along the circumference of the elastic body (300); and the sealing agent 400 injected along the upper perimeter of the upper side of the upper sealing agent blocking plate 110 and the elastic body 300, and injected along the lower side of the lower sealing agent blocking plate 210 and the elastic body 300; can be configured.

The upper plate 100 is a wide, rectangular plate made of a metallic material, and is fixed to the lower end of the upper structure by bolting or welding. In the case of a bridge, the upper structure may correspond to the upper plate.

The lower plate 200 is also a wide, rectangular plate made of a metallic material, and is fixed to the upper end of the lower structure by a plurality of downward anchors (not shown) embedded in the lower structure. The substructure may correspond to a pier in the case of a bridge.

The elastic body 300 is interposed between the upper plate 100 and the lower plate 200, while elastically supporting the load transmitted from the upper structure while allowing horizontal movement of the upper structure in normal times, when an earthquake occurs, an earthquake It serves to protect the structure from seismic forces by reducing the input acceleration.

For this role, the elastic body 300 is formed of rubber, and a plurality of internal reinforcing plates 310 may be stacked in the vertical direction inside the rubber.

And the upper end plate 311 is formed at the inner uppermost end of the elastic body 300, and the lower end plate 312 is formed at the inner lower end of the elastic body 300, the upper plate 100 and the lower plate 200 and can be combined.

In the present invention, the upper sealing agent blocking plate 110 is installed on the lower surface of the upper plate 100, and is installed at a predetermined interval along the circumference of the elastic body 300, and the upper sealing agent blocking plate 110 and the elastic body 300. The sealing agent 400 is injected along the upper periphery of the side.

And, correspondingly, the lower sealing agent blocking plate 210 is installed on the upper surface of the lower plate 200, and is installed at a predetermined distance along the circumference of the elastic body 300, and the lower sealing agent blocking plate 210 and the elastic body ( 300) By injecting the sealing agent 400 along the periphery of the lower side of the side, it is possible to prevent a roll-over phenomenon that occurs when the end of the rubber forming the elastic body 300 is rolled up.

In the elastic bearing for preventing rollover according to the present invention, between the elastic body 300 and the upper sealing agent blocking plate 110, the sealing agent 400 is injected at the same height as the upper sealing agent blocking plate 110, and the elastic body 300 ) and the lower sealing agent blocking plate 210 , the sealing agent 400 may be injected at the same height as the lower sealing agent blocking plate 210 .

In addition, in the elastic support for preventing rollover according to the present invention, an upper sealing agent inlet groove 105 is formed on the lower surface of the upper plate 100 along the inner surface of the upper sealing agent blocking plate 110, and an upper sealing agent inlet groove 105 is formed. ) is formed so that a space is secured in a portion of the upper end of the side of the elastic body 300, so that the injected sealing agent 400 has an L-shape.

And, on the upper surface of the lower plate 200, a lower sealing agent internal groove 205 is formed along the inner surface of the lower sealing agent blocking plate 210, and the lower sealing agent internal groove 205 is a part of the lower end of the side of the elastic body 300 It is formed to secure a space in the space, and the injected sealing agent 400 may be configured to have an L-shape.

Referring to FIG. 4 , a lower sealing agent inlet groove 205 is formed along the inner surface of the lower sealing agent blocking plate 210 on the upper surface of the bottom plate 200 according to the present invention. An upper sealing agent inlet groove 105 having a predetermined width (ex. 30 mm) based on a line extending from the inner surface (right side in the drawing) of the 210 to the ground direction may be formed. Then, the elastic body 300 is coupled to the upper surface of the lower plate 200, in which case the elastic body 300 is positioned to cover a part (ex. 10 mm) of the width (ex. 30 mm) of the lower sealing agent inlet groove 205 . can be combined in

As a result, the lower sealing agent internal groove 205 is formed to secure a space in a portion of the lower end of the side of the elastic body 300, and accordingly, the cross section of the sealing agent 400 injected into the lower sealing agent internal groove 205 is L-shaped. will have

In addition, although not shown in the drawing, in the same manner as above, a lower sealing agent inlet groove 105 is formed on the lower surface of the upper sealing agent blocking plate 110 along the inner surface of the upper sealing agent blocking plate 110 in the same manner as above, and the upper sealing agent blocking agent is formed. An upper sealing agent inlet groove 105 having a predetermined width (ex. 30 mm) based on a line extending upward from the inner surface of the plate 210 may be formed.

Then, the elastic body 300 is coupled to the lower surface of the upper plate 100, and in this case, the elastic body 300 is positioned to cover a part (ex. 10 mm) of the width (ex. 30 mm) of the upper sealing agent inlet groove 105 . can be combined in

As a result, the upper sealing agent inlet groove 105 is also formed to secure a space in a portion of the upper end of the side of the elastic body 300 , and accordingly, the cross section of the sealing agent 400 injected into the upper sealing agent inlet groove 105 is L-shaped will have

Referring to FIG. 6 , you can see an operation state diagram of the elastic support for preventing rollover according to the present invention. In the present invention, even if the end of the rubber forming the elastic body 300 is rolled up when the elastic body 300 is moved (shear deformation) , the sealing agent 400 holds the end of the rubber forming the elastic body 300 , and the sealing agent 400 has an L-shape in the upper sealing agent blocking plate 110 and the lower sealing agent blocking plate 210 . ), the deformation of the end of the rubber forming the elastic body 300 is minimized and at the same time not exposed to the outside at all.

Accordingly, the present invention can prevent rust from occurring by suppressing exposure to the air of the inner reinforcing plate 310 of the elastic body 300, thereby improving durability and improving the completeness of the elastic support product.

In addition, in the elastic support for preventing rollover according to the present invention, the upper sealing blocking plate 110 is formed at the same height as the upper end plate 311 , and the lower sealing blocking plate 210 is the same as the lower end plate 312 . It can be formed in height.

7 is a configuration diagram of an elastic support for preventing roll-over including a wedge according to the present invention.

Referring to FIG. 7 , in the elastic bearing for preventing rollover according to the present invention, the upper wedge 510 is formed on the lower surface of the upper plate 100 in the longitudinal direction of the bridge, and the upper surface of the lower plate 200 is in the longitudinal direction of the bridge. A lower wedge 520 corresponding to the upper wedge 510 is formed along the , and cross-sections of the lower surface of the upper wedge 510 and the upper surface of the lower wedge 520 may be formed in a step shape.

And as shown in FIG. 7 , the upper wedge 510 and the lower wedge 520 may be configured to be positioned on the same line in the vertical direction.

In the present invention, the cross-section of the lower surface of the upper wedge 510 and the upper surface of the lower wedge 520 is formed in a step shape, so that the upper wedge 510 and the lower wedge 520 are located on the same line in the vertical direction. Since it is possible, it is impossible for the upper wedge 510 and the lower wedge 520 to be positioned on the same line in the up-down direction, and the lower wedge 520 is located next to the upper wedge 510. Since the width of the plate 100 and the lower plate 200 can be reduced, economic efficiency can be improved.

8 to 10 are flowcharts of a method of manufacturing an elastic support for preventing rollover according to the present invention.

First, referring to FIG. 8 , the method of manufacturing an elastic support for preventing rollover according to the present invention includes the steps of preparing an upper plate 100 , a lower plate 200 and an elastic body 300 ( S10 ); Installing an upper sealing agent blocking plate 110 on the lower surface of the upper plate 100 so as to be spaced a predetermined distance along the circumference of the elastic body 300 (S20); Installing the lower sealing agent blocking plate 210 on the upper surface of the lower plate 200 so as to be spaced a predetermined distance along the circumference of the elastic body 300 (S30); coupling the elastic body 300 and the lower plate 200 (S40); Injecting the sealing agent 400 along the lower periphery of the lower side of the sealing agent blocking plate 210 and the elastic body 300 (S50); coupling the elastic body 300 and the upper plate 100 (S60); and injecting a sealing agent along the upper periphery of the upper side of the upper sealing agent blocking plate 110 and the elastic body 300 (S70); may be configured to include.

Step S10 is a step of preparing the upper plate 100 , the lower plate 200 , and the elastic body 300 .

Step S20 is a step of installing the upper sealing agent blocking plate 110 on the lower surface of the upper plate 100 so as to be spaced a predetermined distance along the circumference of the elastic body 300 .

Step S30 is a step of installing the lower sealing agent blocking plate 210 on the upper surface of the lower plate 200 so as to be spaced apart by a predetermined distance along the circumference of the elastic body 300 .

Step S40 is a step of coupling the elastic body 300 and the lower plate 200 .

Step S50 is a step of injecting the sealing agent 400 along the lower periphery of the lower sealing agent blocking plate 210 and the side bottom of the elastic body 300 .

Step S60 is a step of coupling the elastic body 300 and the upper plate 100 .

Step S70 is a step of injecting a sealing agent along the upper periphery of the upper sealing agent blocking plate 110 and the side of the elastic body 300 .

Referring to FIG. 9 , in the manufacturing method of the elastic support for preventing rollover according to the present invention, after the step (S10) of preparing the upper plate 100, the lower plate 200, and the elastic body 300, the upper plate 100 is placed on the lower surface. The upper sealing agent internal groove 105 is formed along the inner surface of the upper sealing agent blocking plate 110, and the upper sealing agent internal groove 105 is inserted into the elastic body 300 side so that the sealing agent 400 has an L-shape. Forming an upper sealing agent inlet groove forming step (S11) to secure a space in the upper part; and a lower sealing agent internal groove 205 along the inner surface of the lower sealing agent blocking plate 210 on the upper surface of the lower plate 200, but the lower sealing agent internal groove 205 so that the sealing agent 400 has an L-shape ( 205) forming a lower sealing agent inlet groove forming step (S12) of forming a space in a portion of the lower end of the side of the elastic body 300 to secure; may include.

When step S11 is described as an example with reference to FIG. 4 , an upper portion having a predetermined width (ex. 30 mm) based on a line extending from the inner surface (right side in the drawing) to the ground direction of the lower sealing agent blocking plate 210 . A sealing agent inlet groove 105 may be formed.

And in step S40, the elastic body 300 is coupled to the upper surface of the lower plate 200 so that the elastic body 300 covers a portion (ex. 10 mm) of the width (ex. 30 mm) of the lower sealing agent inlet groove 205 . It can be combined in the state in which it is located.

As a result, the lower sealing agent internal groove 205 is formed to secure a space in a portion of the lower end of the side of the elastic body 300, and accordingly, the cross section of the sealing agent 400 injected into the lower sealing agent internal groove 205 is L-shaped. will have

In step S12, in a similar manner to step S11, a lower sealing agent inlet groove 105 is formed on the lower surface of the upper plate 100 along the inner surface of the upper sealing agent blocking plate 110, and the upper sealing agent blocking plate 210 is formed. An upper sealing agent inlet groove 105 having a predetermined width (ex. 30 mm) based on a line extending upward from the inner surface of the can be formed.

And in step S60, the elastic body 300 is coupled to the lower surface of the upper plate 100, so that the elastic body 300 covers a part (ex. 10 mm) of the width (ex. 30 mm) of the upper sealing agent inlet groove 105 . It can be combined in the state in which it is located.

As a result, the upper sealing agent inlet groove 105 is also formed to secure a space in a portion of the upper end of the side of the elastic body 300 , and accordingly, the cross section of the sealing agent 400 injected into the upper sealing agent inlet groove 105 is L-shaped will have

Referring to FIG. 10 , the method of manufacturing an elastic bearing for preventing rollover according to the present invention includes the steps of installing an upper wedge 510 on the lower surface of the upper plate 100 in the longitudinal direction of the bridge (S80); and installing a lower wedge 510 corresponding to the upper wedge 510 on the upper surface of the lower plate 200 in the longitudinal direction of the bridge (S90); may further include. And at this time, the cross-section of the lower surface of the upper wedge 510 and the upper surface of the lower wedge 520 may be formed in a step shape.

The detailed description of the preferred embodiments of the present invention disclosed as described above is provided to enable any person skilled in the art to make and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, a person skilled in the art may use each configuration described in the above-described embodiments in a way that is combined with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined to form an embodiment, or may be included as new claims by amendment after filing.

100: upper plate 105: upper sealing agent internal groove
110: upper sealing agent blocking plate 200: lower plate
205: lower sealing agent inlet groove 210: lower sealing agent blocking plate
300: elastic body 310: internal reinforcement plate
311: upper end plate 312: lower end plate
400: sealing agent 510: upper wedge
520: lower wedge

Claims (6)

an upper plate fixed to the upper structure;
a lower plate installed to face the upper plate and fixed to the lower structure;
an elastic body interposed between the upper plate and the lower plate to elastically support the load transmitted from the upper structure;
an upper sealing material blocking plate installed on the lower surface of the upper plate and spaced apart from each other by a predetermined distance along the periphery of the elastic body;
a lower sealing agent blocking plate installed on the upper surface of the lower plate and spaced apart from each other by a predetermined distance along the circumference of the elastic body; and
a sealing agent injected along the upper periphery of the upper sealing agent blocking plate and the upper periphery of the side of the elastic body, and injected along the lower perimeter of the lower sealing agent and the side of the elastic body;
Between the elastic body and the upper sealing agent blocking plate, the sealing agent is injected at the same height as the upper sealing agent blocking plate,
Between the elastic body and the lower sealing agent blocking plate, the sealing agent is injected at the same height as the lower sealing agent blocking plate,
The sealing agent injected along the upper periphery of the upper side of the upper sealing agent blocking plate and the elastic body is exposed between the upper sealing agent blocking plate and the elastic body,
The sealing agent injected along the lower periphery of the lower side of the lower sealing agent blocking plate and the elastic body is exposed between the lower sealing agent blocking plate and the elastic body,
An upper sealing agent inlet groove is formed on the lower surface of the upper plate along an inner surface of the upper sealing agent blocking plate, and the upper sealing agent inlet groove is formed to secure a space in a portion of the upper end of the side surface of the elastic body, The sealing agent injected into the groove will have an L-shape,
A lower sealing agent inlet groove is formed on the upper surface of the lower plate along the inner surface of the lower sealing agent blocking plate, and the lower sealing agent inlet groove is formed to secure a space in a portion of the lower end of the side surface of the elastic body, Sealing agent injected into the groove The sealing agent has an L-shape,
An upper wedge is formed on the lower surface of the upper plate in the longitudinal direction of the bridge,
A lower wedge corresponding to the upper wedge is formed on the upper surface of the lower plate in the longitudinal direction of the bridge,
The cross-section of the lower surface of the upper wedge and the upper surface of the lower wedge is formed in a step shape,
The elastic support for preventing rollover, characterized in that the upper wedge and the lower wedge are configured to be positioned on the same line in the vertical direction.
According to claim 1,
An upper end plate is formed on the inner upper end of the elastic body,
A lower end plate is formed at the lower end inside the elastic body,
The upper sealing agent is formed at a predetermined height from the lower end of the upper plate,
The lower sealing agent blocking plate is an elastic support for preventing rollover, characterized in that it is formed at a predetermined height from the upper end of the lower plate.
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