Joint cover support device and joint cover device

The joint cover support device with expandable beams and adjustable mounting members addresses the issue of structural integrity during earthquakes and strong winds by distributing loads and absorbing seismic movements, ensuring the joint cover remains stable.

JP7861327B1Active Publication Date: 2026-05-19DOOEI GAISO KK
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
DOOEI GAISO KK
Filing Date
2025-06-18
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Conventional joint devices face challenges in maintaining structural integrity during earthquakes and strong winds due to the telescopic link mechanisms extending vertically, leading to deflection and inadequate support, especially when the joint narrows.

Method used

A joint cover support device with horizontally positioned expandable beams and adjustable joint cover mounting members, utilizing a pantograph-shaped link mechanism to absorb seismic movements and distribute loads, ensuring the joint cover does not bend and can withstand strong winds.

Benefits of technology

The solution allows for effective distribution of loads and absorption of seismic movements, preventing deflection and damage to the joint cover, even under extreme conditions, by allowing multiple beams to contract and expand as needed.

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Abstract

To provide a joint cover support device and a joint cover device that can withstand strong winds without bending and absorb shaking caused by earthquakes. [Solution] The joint cover support device is positioned horizontally or nearly horizontally with respect to one structural frame and the other structural frame, and consists of multiple expandable beams provided in the joint at predetermined intervals in the vertical direction, multiple joint cover mounting members provided on the multiple expandable beams, and position adjustment means for adjusting the spacing between the joint cover mounting members. The expandable beam consists of end beam members located on the left and right of the joint, a central beam member located approximately in the center of the joint, and one or more intermediate beam members provided between the end beam members and the central beam member. When the width of the joint changes due to an earthquake, the overlap width of adjacent end beam members, intermediate beam members, or central beam members changes, allowing the shaking caused by the earthquake to be absorbed. The joint cover mounting members are provided in positions that do not interfere with adjacent central beam members, intermediate beam members, or end beam members when the width of the joint narrows due to an earthquake.
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Description

Technical Field

[0001] The present invention relates to a joint cover device for closing a joint between left and right body walls provided via a joint portion, and a joint cover support device used for this joint cover device.

Background Art

[0002] As a conventional joint device used for a wall surface or the like, for example, "a joint device for closing a joint between one side and the other side of a body in the left - right direction, having one end portion attached to the one side of the body and the other end portion attached to the other side of the body, a plurality of telescopic link mechanisms each having a plurality of attachment portions, a plurality of bar - shaped attachment members extending in the vertical direction each attached to the attachment portion via a fixture, a plurality of joint covers having one end portion fixed to each of the plurality of attachment members and closing the joint portion, and including a reinforcing member attached to at least one of the plurality of attachment members and passing through a reinforcing member passing portion provided in the attachment member. The attachment portion of the telescopic link mechanism is provided at a portion that does not move substantially in the vertical direction even when the telescopic link mechanism expands and contracts, and the reinforcing member passes through the reinforcing member passing portion of at least one adjacent attachment member to prevent deflection of the joint device" is known (Patent Document 1).

[0003] However, the telescopic link mechanism in the above - mentioned wall joint device extends vertically when the joint portion becomes narrower due to an earthquake, so the dimension in the vertical direction becomes large, and it is difficult to provide a large number of telescopic link mechanisms with a required interval in the vertical direction.

[0004] Therefore, there are many portions that cannot be supported by the telescopic link mechanism, and there is a risk that the joint cover may deflect due to strong wind or the like.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] In view of the above-mentioned drawbacks of conventional joint covers, the present invention aims to provide a joint cover support device and a joint cover device that can withstand strong winds without bending and can absorb shaking caused by earthquakes and the like.

[0007] The aforementioned and other objectives and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.

[0008] However, the drawings are for illustrative purposes only and do not limit the technical scope of the present invention. [Means for solving the problem]

[0009] To achieve the above objective, the joint cover support device described in claim 1 of the present invention is a joint cover support device used in a joint cover device that closes a joint between one structural body and the other structural body, wherein the joint cover support device is positioned horizontally or nearly horizontally with respect to the one structural body and the other structural body, and is provided in the joint at predetermined intervals in the vertical direction, and comprises a plurality of expandable beams, a plurality of joint cover mounting members provided on the plurality of expandable beams, and position adjustment means for adjusting the interval between the joint cover mounting members, wherein the expandable beam is composed of end beam members located on the left and right of the joint, a central beam member located approximately in the center of the joint, and one or more intermediate beam members provided between the end beam members and the central beam member, wherein when the width of the joint changes due to an earthquake, the overlap width of adjacent end beam members, intermediate beam members or central beam members changes to absorb the shaking caused by the earthquake, and the joint cover mounting members are provided when the width of the joint narrows due to an earthquake. adjacent It is provided in a position that does not interfere with the central beam member, the intermediate beam member, or the end beam member. The joint cover mounting member is provided at least in the approximate center of the central beam member, near one end of the intermediate beam member, and near one end of the end beam member. It is characterized by having this feature.

[0010]

[0011] Claim 2 The position adjustment means of the joint cover support device described above is characterized by comprising a pantograph-shaped link mechanism and connecting members provided at each of a plurality of pivot points of the link mechanism, wherein the connecting members are connected to the telescopic beam or the joint cover mounting member.

[0012] Claim 3 The joint cover device of the present invention described herein is a joint cover device for closing the joint between one structural body and the other structural body, wherein the joint cover device comprises a joint cover support device and a plurality of joint covers attached to the joint cover support device for closing the joint, wherein the joint cover support device is positioned horizontally or nearly horizontally with respect to the one structural body and the other structural body and comprises a plurality of telescopic beams provided in the joint at predetermined intervals in the vertical direction, a plurality of joint cover mounting members provided on the plurality of telescopic beams, and position adjustment means for adjusting the interval between the joint cover mounting members, wherein the telescopic beams are positioned to the left and right of the joint, The structure is composed of an end beam member, a central beam member located approximately in the center of the joint, and one or more intermediate beam members provided between the end beam member and the central beam member. When the width of the joint changes due to an earthquake, the overlap width of adjacent end beam members, intermediate beam members, or central beam members changes, thereby absorbing the shaking caused by the earthquake. The joint cover mounting member is provided at least approximately in the center of the central beam member, near one end of the intermediate beam member, and near one end of the end beam member, and is positioned so as not to interfere with the expansion beam when the width of the joint narrows due to an earthquake.

[0013]

[0014] Claim 4 The position adjustment means of the joint cover device described above is characterized by comprising a pantograph-shaped link mechanism and connecting members provided at each of the multiple pivot points of the link mechanism, wherein the connecting members are connected to the telescopic beam or the joint cover mounting member. Here, the "expansion and contraction beam" is a structural member that is positioned in a horizontal state or a state close thereto with respect to one body and the other body and supports a load. [Advantages of the Invention]

[0015] As is clear from the above description, the following advantages can be obtained in the present invention. (1) In each of the inventions described in claim 1 and Claim 3 , since it includes a plurality of expansion and contraction beams and a plurality of joint cover attachment members provided directly or indirectly on the expansion and contraction beams, even when the width of the joint part becomes narrow due to an earthquake, the expansion and contraction beams can contract and absorb the swaying movement. Therefore, a large number of expansion and contraction beams can be provided in the vertical direction. Therefore, even when receiving a load such as strong wind, the load can be received by the expansion and contraction beams and dispersed, preventing damage to the joint cover support device or the like. (2) Also, since a large number of expansion and contraction beams can be provided in the vertical direction, the weight of the joint cover or the like can be received by the expansion and contraction beams and the weight can be dispersed and supported. (3) Claims 2 and 4 In each of the inventions described in, the same effects as those in (1) to (2) can be obtained, and it can withstand strong wind or the like without bending and can absorb the swaying movement due to an earthquake or the like more smoothly. [Brief Description of the Drawings]

[0016] FIGS. 1 to 7 are explanatory drawings showing a first embodiment of the present invention. [Figure 1] Front view of the joint cover device of the first embodiment. [Figure 2] Cross-sectional view taken along line 2-2 of FIG. 1. [Figure 3] Front view of the joint cover support device of the first embodiment. [Figure 4] Explanatory drawing of the expansion and contraction beam. [Figure 5] Enlarged cross-sectional view taken along line 5-5 of FIG. 4. [Figure 6] Operation explanatory drawing in a state where the joint part becomes narrow due to an earthquake. [Figure 7] Operation explanatory diagram of the state where the joint part has widened due to an earthquake.

Mode for Carrying Out the Invention

[0017] Hereinafter, the present invention will be described in detail according to the mode for carrying out the present invention shown in the drawings. In this specification, the left - right direction, the up (upper part of the drawing) - down (lower part of the drawing) direction are defined based on FIG. 1, and the front (lower part of the drawing) - rear (upper part of the drawing) direction is defined based on FIG. 2.

[0018] In addition, in the present invention, the structure refers to a building such as a building, a road, a slab, an elevator shaft, etc. where a joint plate can be installed, and the entrance / exit includes not only an entrance / exit provided with a door or a gate, but also a passage through which people, vehicles, etc. can pass.

[0019] In the first mode for carrying out the present invention shown in FIGS. 1 to 7, 1 is a joint cover device that closes the joint part 2 between one structure 3 and the other structure 4.

[0020] As shown in FIGS. 1 and 2, this joint cover device 1 is composed of a joint cover support device 5 of the present invention and a plurality of joint covers 6 attached to the joint cover support device 5 and closing the joint part 2.

[0021] As shown in FIG. 3, this joint cover support device 5 is located in a horizontal state or a state close to it with respect to the one structure and the other structure, and a plurality of telescopic beams 7 provided at a predetermined interval in the vertical direction in the joint part 2, a plurality of joint cover attachment members 8 provided directly or indirectly on the plurality of telescopic beams 7, and a position adjustment means 9 for adjusting the interval of the joint cover attachment members 8.

[0022] As shown in Figures 4 and 5, the expansion beam 7 is composed of an end beam member 10, one end of which is attached to one of the structural bodies 3 (left side of the drawing) and the other structural body 4 (right side of the drawing), a central beam member 11, the central part of which is located approximately in the center of the joint 2, and one or more intermediate beam members 12, each provided between the end beam member 10 and the central beam member 11.

[0023] To add to this, as shown in Figure 2, for example, the end beam members 10 are located on the left and right sides of the joint 2, the central beam member 11 is located in the center of the joint 2, and the intermediate beam member 12 is located between the end beam members 10 and the central beam member 11, so that the expansion beam 7 as a whole is arranged horizontally.

[0024] The end beam member 10 is a rectangular pipe-shaped member with an opening at the other end (towards the center of the joint 2), and it is desirable that one end of the end beam member is attached to the left and right structural members 3 and 4 via a hinge member or pivot shaft so as to be rotatable in the front-rear and up-down directions. One end of the adjacent intermediate beam member 12 is inserted into the opening at the other end.

[0025] In this embodiment, two intermediate beam members 12 are provided on each side, and they are made up of square pipe-shaped members with an opening at the other end (the central side of the joint 2). One end (the side facing the building structure) of adjacent small-diameter intermediate beam members 12 is inserted into the interior of the large-diameter intermediate beam member 12.

[0026] The central beam member 11 is a rectangular column or rectangular pipe-shaped member whose ends are inserted into the other end sides of the adjacent intermediate beam members 12, and is positioned so that its approximate center is located approximately in the center of the joint 2.

[0027] Inside the end beam member 10, the central beam member 11, and the intermediate beam member 12, multiple sliding members 13 such as rollers or sliding materials are provided to allow the end beam member 10, the central beam member 11, and the intermediate beam member 12 to move smoothly in the left-right direction during an earthquake. In this embodiment, these sliding members 13 are provided not only in the vertical direction but also around the entire circumference of the central beam member 11 and the intermediate beam member 12 so that the telescopic beam 7 operates optimally, but they may be provided in any manner that facilitates the smooth operation of the telescopic beam 7.

[0028] Preferably, the end beam member 10 is formed in the shape of a square pipe with the largest diameter compared to the other beam members 11 and 12, and the dimensions gradually decrease towards the center of the joint 2, with the central beam member 11 being formed in the shape of a square pipe or square column with the smallest diameter.

[0029] By configuring the expansion beam 7 in this way, when the width of the joint 2 changes due to an earthquake, the overlap width of the adjacent end beam members 10, intermediate beam members 12, or central beam member 11 changes, thereby absorbing the shaking caused by the earthquake.

[0030] The joint cover mounting member 8 is positioned so as not to interfere with the expansion and contraction of the expansion beam 7 when the width of the joint narrows due to an earthquake. In other words, it is positioned so as not to interfere with the adjacent central beam member 11, the intermediate beam member 12, or the end beam member 10.

[0031] Specifically, the joint cover mounting member is provided at least in the approximate center of the central beam member 11, near one end of the intermediate beam member 12, and near one end of the end beam member 10, and in a position where it does not interfere with the expansion beam when the width of the joint narrows due to an earthquake.

[0032] In this embodiment, the central beam member 11 is provided near the center, the end (other end) of the joint 2 on the central side of the intermediate beam member 12, and the end (other end) of the joint 2 on the central side of the end beam member 10.

[0033] Furthermore, when forming the expansion beam 7 such that the central beam member 11 is formed in the shape of the largest diameter square pipe, and the diameter decreases as it approaches the structural body 3 and 4, and the end beam members 10 are formed in the shape of the smallest diameter square pipe or square column, it is advisable to attach the joint cover mounting members 8 near the approximate center of the central beam member 11, near the end (one end) of the intermediate beam member 12 on the structural body 3 and 4 side, and near the end of the end beam member 10 on the structural body 3 and 4 side.

[0034] Furthermore, when forming the telescopic beam 7 such that the end beam member 10 on one side of the structure 3 or the end beam member 10 on the other side of the structure 4 is formed in the shape of a large-diameter square pipe, and the diameter decreases as it approaches the opposing sides of the structure 3 and 4, with the end beam member 10 on the opposing sides of the structure 3 and 4 being the smallest-diameter square pipe or rectangular column, it is preferable to arrange the telescopic beams 7 alternately in opposite directions, and to provide joint cover mounting members 8 via mounting brackets at the ends of the end beam members 10, central beam member 11, and intermediate beam member 12 on the side furthest from the structures 3 and 4 to which the large-diameter end beam members 10 are attached, so as not to interfere with the operation of the telescopic beam 7. In such cases, the joint cover 6 is provided so as to be stepped by the thickness of the joint cover so that the joint cover 6 on the side of the structure 3 is located at the rearmost position, and the joint cover 6 on the other side of the structure 4 is located at the frontmost position.

[0035] The descriptions above are merely examples of how the joint cover mounting member 8 can be installed. It is preferable to install it in a location where the joint cover mounting member 8 and the expansion beam 7 do not interfere with each other during an earthquake, and where the spacing can be maintained by the position adjustment means 9.

[0036] In this embodiment, the joint cover mounting member 8 is directly attached to the expansion beam 7, but it may also be attached indirectly to the expansion beam 7 via mounting brackets or the like. Furthermore, although a bar-shaped joint cover mounting member 8 is used in this embodiment, the joint cover mounting member 8 may be formed into any shape as long as the joint cover 6 can be properly attached.

[0037] Incidentally, when attaching the joint cover mounting member 8 using mounting brackets, the mounting end of the mounting bracket is fixed to a part that does not interfere with the movement of the telescopic beam 7, and the mounting bracket is formed to protrude forward and extend toward the structural members 3 and 4. By using such mounting brackets, multiple joint cover mounting members 8 can be provided for one mounting bracket, and multiple joint cover mounting members 8 can be attached to one end beam member 10, a central beam member 11, and an intermediate beam member 12 without interfering with the telescopic beam 7. Alternatively, the mounting bracket may be fixed to the joint cover mounting member 8 and provided to abut against the upper part of the telescopic beam 7 with a sliding material or the like, so that the load of the joint cover 6 and the joint cover mounting member 8 is supported by the telescopic beam 7.

[0038] The position adjustment means 9 consists of a pantograph-shaped link mechanism 15 and connecting members 17 provided on each of the multiple pivot points 16 of the link mechanism 15, and the connecting members 17 are connected to the telescopic beam 7 or the joint cover mounting member 8. In this embodiment, pivot pins that pivotally support the pivot points 16 are used as connecting members 17, and these connecting members 17 are connected to the joint cover mounting member 8. As a result, the spacing between the joint cover mounting members 8 is always approximately the same, and the spacing between the end beam members 10, central beam members 11 and intermediate beam members 12 of the telescopic beam 7 to which the joint cover mounting members 8 are fixed is also constantly adjusted.

[0039] Furthermore, regarding the joint cover mounting member 8 attached to the end beam member 10, since its positional relationship with the structural bodies 3 and 4 does not change even if the width of the joint 2 changes, the joint cover mounting member 8 attached to the end beam member 10 does not need to be connected to the position adjustment means 9, or it may be connected with a connecting member 17 to the pivot 16, which does not change its positional relationship with the structural bodies 3 and 4 even if the width of the joint 2 changes. In this embodiment, the joint cover mounting member 8 attached to the end beam member 10 is connected with a connecting member 17 to the pivot 16, which does not change its positional relationship with the structural bodies 3 and 4 even if the width of the joint 2 of the position adjustment means 9 changes.

[0040] The position adjustment means 9 also constantly adjusts the spacing between the end beam members 10, the central beam member 11, and the intermediate beam members 12 of the telescopic beam 7, thus also serving as a fall prevention means to prevent the beam members from falling off. Alternatively, the sliding members 13 may be provided so that they interfere with each other and act as a fall prevention means.

[0041] In this embodiment, the joint cover 6 is made of a plate material with one end bent in a roughly crank shape, and this end is fixed to the joint cover mounting member 8 via a mounting bracket 14. The other end of this joint cover 6 is provided so as to overlap the end of an adjacent joint cover 6, and is formed to be able to seal the joint 2 so that no gaps occur even during an earthquake. Alternatively, the joint cover 6 may be attached directly to the joint cover mounting member 8 without using the mounting bracket 14.

[0042] Incidentally, with respect to the joint cover 6 located at the end of the structural frame 3 and 4, it is desirable to bend the end on the structural frame 3 and 4 side so that it is approximately parallel to the wall surface of structural frame 3 and 4, and to provide a sealant or the like between the wall surface of structural frame 3 and 4 and the joint cover 6.

[0043] When the left and right structural members 3 and 4 sway during an earthquake, causing the joint 2 to narrow, the expansion beam 7 shrinks in the left-right direction and displaces itself so that the overlap width of adjacent joint covers 6 increases, as shown in Figure 6, thereby absorbing the shaking caused by the earthquake.

[0044] When the left and right structural members 3 and 4 sway during an earthquake, causing the joint 2 to widen, the expansion beam 7 extends in the left-right direction and displaces itself so that the overlap width of adjacent joint covers 6 decreases, as shown in Figure 7, thereby absorbing the shaking caused by the earthquake.

[0045] Furthermore, although not shown in the diagram, if the left and right structural bodies 3 and 4 sway in different longitudinal directions during an earthquake, the telescopic beam 7 and the link mechanism 15, which acts as a position adjustment means 9, rotate in the longitudinal direction using the hinge member and pivot axis near the mounting base as pivot points, thereby absorbing the swaying motion.

[0046] Although a link mechanism was described as the means for adjusting the position, a biasing device or the like may also be provided between the joint cover mounting members to adjust the spacing between them. [Industrial applicability]

[0047] This invention is used in the industry that manufactures joint cover devices. [Explanation of symbols]

[0048] 1: Joint cover device, 2: Joint section, 3: One structural frame, 4: The other structural frame, 5: Joint cover support device, 6: Joint cover, 7: Expansion beam, 8: Joint cover mounting member, 9: Position adjustment means, 10: End beam member, 11: Central beam member, 12: Intermediate beam member, 13: Sliding member, 14: Mounting bracket, 15: Linkage mechanism, 16: Pivot branch, 17: Connecting component.

Claims

1. A joint cover support device used in a joint cover device that seals the joint between one structural frame and the other structural frame, The joint cover support device is positioned horizontally or nearly horizontally with respect to one of the structural bodies and the other, and consists of multiple telescopic beams provided at predetermined vertical intervals in the joint, multiple joint cover mounting members provided on the multiple telescopic beams, and position adjustment means for adjusting the spacing between the joint cover mounting members. The expansion beam is composed of end beam members located on the left and right sides of the joint, a central beam member located approximately in the center of the joint, and one or more intermediate beam members provided between the end beam members and the central beam member. When the width of the joint changes due to an earthquake, the overlap width of adjacent end beam members, intermediate beam members, or central beam members changes, thereby absorbing the shaking caused by the earthquake. The joint cover mounting member is provided in a position that does not interfere with adjacent central beam members, intermediate beam members, or end beam members when the width of the joint narrows due to an earthquake. The joint cover mounting member is a joint cover support device provided at least in the approximate center of the central beam member, near one end of the intermediate beam member, and near one end of the end beam member.

2. The joint cover support device according to claim 1, wherein the position adjustment means comprises a pantograph-shaped link mechanism and connecting members provided at each of a plurality of pivot points of the link mechanism, and the connecting members are connected to the telescopic beam or the joint cover mounting member.

3. A joint cover device for sealing the joint between one structural frame and the other structural frame, The joint cover device consists of a joint cover support device and a plurality of joint covers attached to the joint cover support device to seal the joint. The joint cover support device is positioned horizontally or nearly horizontally with respect to one of the structural bodies and the other, and consists of multiple telescopic beams provided at predetermined vertical intervals in the joint, multiple joint cover mounting members provided on the multiple telescopic beams, and position adjustment means for adjusting the spacing between the joint cover mounting members. The expansion beam is composed of end beam members, one end of which is attached to one of the structural members and the other structural member, a central beam member located approximately in the center of the joint, and one or more intermediate beam members provided between the end beam members and the central beam member. When the width of the joint changes due to an earthquake, the overlap width of adjacent end beam members, intermediate beam members, or central beam members changes, thereby absorbing the shaking caused by the earthquake. The joint cover mounting member is provided at least approximately in the center of the central beam member, near one end of the intermediate beam member, and near one end of the end beam member, in a position where the joint cover mounting member does not interfere with the expansion beam when the width of the joint narrows due to an earthquake.

4. The joint cover device according to claim 3, wherein the position adjustment means comprises a pantograph-shaped link mechanism and connecting members provided at each of a plurality of pivot points of the link mechanism, and the connecting members are connected to the telescopic beam or the joint cover mounting member.