JP7433672B1 - joint cover device - Google Patents

Abstract

An object of the present invention is to provide a joint cover device that can close joints and absorb shaking motion without damaging a building frame or the like during an earthquake. [Solution] A joint cover device that closes a joint between one frame and another frame on which the seismic isolation force of a seismic isolation device acts, the joint cover device includes a joint cover mounting device and a joint The joint cover mounting device is provided on one of the building blocks or on the side of the building body, and includes a support member that supports the joint cover, and a joint cover that closes the joint cover from the initial position to the other side of the building body. It consists of a connecting member that is controlled to prevent positional displacement, and a joint cover attachment part provided on the supporting member, and the lower end of the supporting member moves in the vertical direction to one of the building blocks or to the side of the building frame via a sliding member. It is equipped with a movable support bar and a biasing means for biasing the support bar toward the other frame, so that when the joint becomes narrow during an earthquake, the joint cover slides on the upper part of the one frame. A joint cover device that absorbs shaking movements. [Selection diagram] Figure 1

Description

The present invention relates to a joint cover device that closes a joint between one of the building blocks on which the seismic isolation force of a seismic isolation device acts during an earthquake, and the wall between this building block and the other wall.

Conventionally, as an example of a joint device installed at the joint between one building block and the other building block where the seismic isolation force of the seismic isolation device acts during an earthquake, there is a joint cover device that closes the joint between one building block and the other building block. The joint cover support member is provided between the joint portions, and the joint cover is provided above the joint cover support member and is supported by the joint cover support member, and the joint cover is provided on one side. It consists of a joint cover main body, another joint cover main body, and a connecting member that connects the one joint cover main body and the other joint cover main body, and when the joint part becomes narrow due to an earthquake, the joint cover main body A "joint cover device" in which the cover bends around the connecting member as a fulcrum to absorb shaking motion and returns to its normal state when the shaking motion ends after an earthquake is known (Patent Document 1).

This kind of joint device has sufficient space between the wall surfaces of one frame and the other frame, and if there is space for the joint cover body to bend, it can absorb the shaking movement caused by an earthquake and also protect the joint area. However, unlike the embodiment of Patent Document 1, in the field where it is not possible to secure sufficient joint space (sufficient gap to prevent damage to the joint cover), in the event of an earthquake, one side of the When the joint between one frame and the other frame becomes narrow, there is a problem in that the joint cover is bent or the other frame is damaged.

In addition, even if the wall surface of the other building block protrudes toward the other building block, there is a security problem if the joint between one building block and the other building block is not covered, and under normal circumstances, dirt, etc. may leak through the gap. There were problems such as the interior of the seismic isolation pit becoming visible through the gaps in the joints, resulting in poor aesthetics, etc., so it was necessary to close the joints with a rational structure.

JP2019-157485A

In view of the above-mentioned conventional drawbacks, the main object of the present invention is to provide a joint cover device that can absorb shaking motion during an earthquake without damaging the joint cover, the building frame, etc.

These and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are solely for illustrative purposes and do not limit the technical scope of the present invention.

In order to achieve the above object, the joint cover device according to claim 1 of the present invention provides a joint cover that closes the joint between one building block and the other building block on which the seismic isolation force of the seismic isolation device acts. The joint cover device includes a joint cover mounting device provided on the one body, and a joint cover provided on the joint cover mounting device to close the joint portion, and the joint cover mounting device The device includes a support member that is provided on the one frame or the side of the frame and that supports the joint cover, and a connection that controls at least an upper end of the support member so that it is not displaced from an initial position toward the other frame. and a joint cover attachment part provided on the support member, and the support member has a movable support bar whose lower end portion moves vertically toward the one frame or the frame through a sliding member. , a biasing means for biasing the support bar toward the other frame, and when the joint becomes narrow during an earthquake, the joint cover slides on the upper part of the one frame to prevent shaking. Characterized by absorption.

The joint cover of the joint cover device according to claim 2 is provided so that its upper surface is substantially flat with the upper surface of the one of the skeletons under normal conditions, and when the joint portion becomes narrow, the joint cover The cover is characterized in that as the cover rises, it slides on the upper part of the one frame to absorb the shaking movement.

In the joint cover device according to claim 3, the joint cover rides on an upper part of the one body at least on either an end of the joint cover on the one body frame side or a joint side of the one body body. It is characterized by the formation of an inclined surface that allows for
Furthermore, the joint cover device according to claim 4 is provided such that its lower surface is substantially flat with the upper surface of the one of the building blocks under normal conditions, and when the joint portion becomes narrow, the joint cover device It is characterized by absorbing shaking motion by sliding the upper part in a substantially horizontal state.

As is clear from the above description, the present invention provides the following effects.
(1) In each of the inventions recited in claims 1 and 4, the joint cover can be mounted substantially horizontally by the joint cover mounting device having a rational structure, and the shaking motion of the joint cover can be absorbed in the event of an earthquake. can. In addition, during an earthquake, when the other building block 4 shakes in a direction that narrows the joint section 2, the joint cover slides on the upper part of one building block 3 while being supported by the support member 7, so the joint cover 6 and the other frame 4 can be prevented from being damaged.
(2) When the shaking motion due to the earthquake ends due to the urging means, connecting members, etc., the movable cover part can be automatically returned to its origin (initial position), so the joint part can be reliably closed. I can do it.
(3) In the invention according to claim 2, the same effects as in (1) and (2) above can be obtained, and the upper surface of the joint cover is made substantially flat with the upper surface of the one frame. Because of this, the joint cover continues flatly with the top surface of one of the building blocks without any gaps, improving the aesthetic appearance.
(4) In the invention according to claim 3, the same effects as in (1) to (3) above can be obtained, and the joint cover can be more smoothly mounted on the upper part of one of the building blocks.

1 to 5 are explanatory diagrams showing a first embodiment of the present invention.
6 to 8 are explanatory diagrams showing a second embodiment of the present invention.
FIG. 1 is a vertical cross-sectional view of a joint cover device according to a first embodiment. An explanatory diagram of one frame, the other frame, and joints. An explanatory diagram of a joint cover mounting device and a joint cover. An explanatory diagram of the operation in a state where the joint has become even narrower due to an earthquake. An explanatory diagram of the operation in a state where the joint area has become wider due to an earthquake. FIG. 7 is a vertical cross-sectional view of a joint cover device according to a second embodiment. An explanatory diagram of the operation when the joint is narrowed due to an earthquake. An explanatory diagram of the operation in a state where the joint area has become wider due to an earthquake.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments for carrying out the invention shown in the drawings.
In a first embodiment of the present invention shown in FIGS. 1 to 5, 1 is a joint (gap) 2 between one frame 3 and the other frame 4 where the seismic isolation force of the seismic isolation device 19 acts. This is a joint cover device that closes the joints.

The joint cover device (1, 1A) of the embodiment includes a joint cover mounting device 5 provided on one of the building blocks 3, and a joint cover attachment device 5 provided on the joint cover mounting device to cover the joint (gap) between the building blocks (3, 4). 2 and a joint cover 6 that closes the joint cover 2.

The joint cover mounting device 5 is provided on one of the building blocks 3 or on the side of the building block, and includes a support member 7 that supports the joint cover 6, and at least an upper end of the support member is positioned from an initial position toward the other building body 4 side. It has a connecting member 8 that is controlled so as not to be displaced, and a joint cover attachment part 9 provided on the support member.

The support member 7 has a movable support bar 10 whose lower end portion moves vertically toward one of the skeletons 3 or that body via a sliding member 15, and a movable support bar 10 that urges the support bar 10 toward the other skeleton 4. When the joint part 2 becomes narrow during an earthquake, the joint cover 6 slides on the upper part of one of the frames 3 to absorb the shaking motion.

Therefore, a detailed explanation will be given with reference to the drawings. As shown in FIG. 1, this joint cover device 1 is provided with a joint cover attaching device 5 provided on one of the building blocks 3 and the joint cover attaching device 5 (for example, attached integrally), and 2 and a joint cover 6 that closes the joint cover 2.

As shown in FIG. 2, one frame 3 is a structure that is fixed to the ground G and swings in synchronization with the ground G during an earthquake, and in this embodiment, has a wall-like structure. The other frame is a seismic isolation structure provided on the ground G via a seismic isolation device 19, and is connected to the one frame 3 via the joint portion 2.

The joint cover attaching device 5 includes a support member 7 whose lower end is rotatably attached to one of the frame members 3 by a link mechanism, and an upper end of the support member 7 which is separated by a predetermined distance (an initial position in a normal state). ), and a joint cover mounting portion 9 provided at the upper end of the support member 7.

The support member 7 includes a support bar 10 whose lower end is attached to one frame 3 via a sliding member 15 so that it can slide vertically, and a support bar 10 whose lower end is attached to one frame 3 and whose other end is attached to one frame 3. A link member 11 is attached to the support bar 10 so that its upper end is always substantially horizontal with the upper end of the support bar, and the link member 11 urges the support bar 10 toward the other frame 4 side. It is composed of a biasing means 12 and a joint cover attachment part 9 provided on the support bar 10.
The support bar 10 is attached at its lower end to a guide rail 14 provided to extend vertically on the joint side wall surface of one of the building blocks 3 via a sliding member 15 such as a roller. There is. In the embodiment, therefore, the sliding member 15 is rotatably mounted on the support bar 10 .

Specifically, the sliding member 15 is provided so as to be able to slide in the vertical direction (the longitudinal direction of the guide rail 14) with respect to one of the building blocks 3, and in the normal state (the state shown in FIG. 1, etc.), the sliding member 15 Positioning means 16 such as a coil spring is provided so that the upper surface 6a is substantially flat with the upper surface 3b of one frame 3. As a result, the lower end of the support bar 10 is provided so as to be able to slide in the vertical direction with respect to the wall surface of one frame 3 and to be rotatable about the axis of the sliding member 15 that engages with the guide rail 14. There is. Note that a plurality of support bars 10 are provided at predetermined intervals in the front-rear direction.

In this embodiment, the positioning means 16 is constituted by a coil spring 16a, the connecting member 8, and the urging means 12, and the coil spring 16a urges one end of the support bar 10 upward. At the same time, the movement of the other end of the support bar 10 is appropriately restricted by the connecting member 8 and the biasing means 12, and by biasing the other frame 4, the joint cover 6 is supported substantially horizontally in normal times. be able to.

Therefore, in the first embodiment (also referred to as the present embodiment), when the joint portion 2 becomes narrow during an earthquake, the joint cover 6 resists the urging force of the coil spring 16a, the urging means 12, etc. It rises to the top of one of the building blocks 3 and absorbs the shaking motion. Note that a stopper or the like may be provided as the positioning means 16 to prevent one end of the support bar 10 from moving above a predetermined position.

A joint cover attachment portion 9 to which the joint cover 6 is attached is provided at the upper end of the support bar 10. This joint cover attachment part 9 is a bar-shaped member extending in the front-rear direction, and is provided at the upper end of the support bar 10 via a rotation shaft 17, and is rotatable with respect to the support bar 10. There is.

Further, the joint cover 6 is provided on the joint cover mounting portion 9 so as to be vertically slidable. Specifically, the locking stake 13 provided at the bottom of the other end of the joint cover is inserted and attached to the attachment hole 9a formed in the joint cover attachment portion 9. Thereby, even if the joint portion 2 becomes narrow due to an earthquake, the joint cover 6 can absorb the shaking movement while maintaining a substantially horizontal state.

The upper end side of this support bar 10 is connected to one of the frame bodies 3 by a connecting member 8, so that the upper end of the support member 7 is not separated from one of the frame bodies 3 by a certain amount or more. In this embodiment, the wire 8 is used as the connection member 8, but a pantograph-type link member 11, which will be described later, may be used as the connection member 8.

A link member 11 is connected to the upper end side of the support bar 10 (above the center of the support bar 10), and in this embodiment, the upper end of this link member 11 and the upper end of the guide rail 14 are connected. However, it supports the bottom of the joint cover 6. As a result, the upper surface of the joint cover 6 is provided so as to be generally horizontal and approximately flat with the upper surface of one of the building blocks 3 under normal conditions.

Note that it is desirable that the link member 11 is provided so that the position of its upper end does not shift in the vertical direction even if it expands or contracts. One end of the link member 11 is also attached to the guide rail 14 or the wall surface of one of the frame members 3 in a fixed manner (not displaceable in the vertical direction) or in a slidable manner in the vertical direction, as required. Additionally, a stopper or the like may be provided to prevent one end of the link member 11 from moving above a predetermined position. Further, the link member 11 may be provided as necessary, and the support member 7 may be provided without the link member 11.

In this embodiment, the biasing means 12 is composed of the link member 11 and a tension spring 12a provided vertically on the link member 11, and draws the upper and lower pivot parts of the link member 11 closer together. By biasing in the direction, the link member 11 is biased in the direction of expanding in the left-right direction, and the support bar 10 is biased toward the other frame.

In this embodiment, the tension spring 12a provided vertically on the link member 11 is used as the biasing means 12, but instead of using the link member 11, the wall surface of the other frame 4 and the support bar 10 are connected by the tension spring. A weight or the like is attached to the connecting support bar 10 via a pulley to bias it, and a spring member or the like is attached to the part where the sliding member 15 is pivotally supported so that the support bar 10 rotates toward the other frame. Various known biasing means 12 can be used.

The joint cover 6 is a plate-shaped member, and the other end side (the end on the other frame side) is attached to the joint cover attachment part 9 so as to be slidable in the vertical direction. The bottom portion is supported by the member 11 and the guide rail 14.

In addition, an inclined surface 18 is formed at one end of the joint cover 6 (the end on the side of one of the building blocks) for riding on the top surface of one of the building blocks 3, so that if the joint becomes narrow due to an earthquake, This inclined surface 18 rides on the upper part of one of the frames 3 and absorbs the swinging motion. In this embodiment, the sloped surface 18 is formed on both the joint cover 6 and one of the frames 3, but the slope 18 may be provided only on one of the frames or one end of the joint cover 6. In order to raise the joint cover 6 more smoothly, as in this embodiment, the sloped surfaces 18 are formed on both the joint cover 6 and one of the frames 3, and the sloped surfaces 18 are roughly connected to each other like a combination. It is best to provide them in a state where they are in contact with each other.

By the way, one end of the joint cover 6 is provided so as to substantially abut on the joint side wall surface 3a of one frame 3, and the other end is provided so as to substantially abut on the joint side wall surface 4a of the other frame 4. It is provided. Note that the other end may be provided so as to be spaced apart from the joint side wall surface 4a of the other frame 4 by a predetermined distance in the normal state.

When the frames 3 and 4 sway in the left-right direction due to an earthquake and the joint portion 2 narrows a little, the joint side wall surface 4a of the other frame 4 presses against the other end of the joint cover 6, causing the biasing means 12 and positioning means 16 The joint cover rises upward by the inclined surface 18 against the biasing force of the coil spring 16a.

When the joint portion 2 becomes further narrower, as shown in FIG. 4, the joint cover 6 slides in the left-right direction on the upper part (floor surface) of one of the building blocks 3 to absorb the shaking motion caused by the earthquake.
When the shaking movement due to the earthquake ends, the upper end of the support bar 10 is urged toward the other frame by the urging force of the urging means 12 and the coil spring 16a of the positioning means 16, and the joint cover 6 is automatically returned to its normal state. Return to position.

When the building blocks 3 and 4 sway in the left-right direction due to an earthquake and the joint portion 2 widens, as shown in FIG. 5, one building block 3 and the other building block 4 are separated to absorb the shaking motion caused by the earthquake. At this time, the joint cover 6 absorbs the shaking motion in synchronization with one of the building blocks 3 while maintaining a substantially horizontal state through the connection member 8 and the like.

[Different forms for carrying out the invention]
Next, different embodiments for implementing the present invention shown in FIGS. 6 to 8 will be explained. In the description of these different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are given the same reference numerals and redundant explanations will be omitted.
In the second embodiment of the present invention shown in FIGS. 6 to 8, the main difference from the first embodiment of the present invention is that one end of the joint cover 6 is In that the joint cover 6 is provided so as to be supported on the upper part of the frame 3 of the joint cover device 1A, the same effects as in the first embodiment of the present invention can be obtained. be able to.

In addition, in this embodiment, the joint cover 6 is arranged such that its lower surface is substantially flat with the upper surface 3b of the one of the building blocks 3 (one end side of the bottom of the joint cover 6 is flat with the top surface 3b of the one of the building blocks 3). When the joint part 2 becomes narrow, the upper part of the one frame 3 is slid in the left and right direction in a substantially horizontal state to absorb the shaking movement. .
Although we have described a configuration in which an inclined surface is formed as a means for raising one end of the joint cover, for example, by being pressed against the other end of the joint cover by the other frame, one end of the joint cover may be raised. Known techniques for raising one end of the joint cover can be used, such as forming a pressing piece that rotates the joint cover upward.

The invention finds use in the industry of manufacturing joint cover devices.

1, 1A: Joint cover device, 2: Joint part,
3: One body, 4: The other body,
5: Joint cover mounting device, 6: Joint cover,
7: Support member, 8: Connection member,
9: Joint cover mounting part, 10: Support bar,
11: link member, 12: biasing means,
13: Locking pile, 14: Guide rail,
15: sliding member, 16: positioning means,
17: Rotation axis, 18: Inclined surface,
19: Seismic isolation device, G: Ground.

Claims (4)

A joint cover device that closes a joint between one building block and another building block on which the seismic isolation force of a seismic isolation device acts,
The joint cover device includes a joint cover mounting device provided on the one body, and a joint cover provided on the joint cover mounting device and closing the joint portion,
The joint cover attachment device is provided on the one of the building blocks or the side of the building blocks, and is configured to prevent a support member that supports the joint cover and at least an upper end portion of the support member from displacing from an initial position toward the other building body. and a joint cover attachment part provided on the support member,
The support member includes a movable support bar whose lower end portion moves vertically toward the one body frame or the body frame side via a sliding member, and biasing means that biases the support bar toward the other body frame side. A joint cover device in which, when the joint becomes narrow during an earthquake, the joint cover slides on the upper part of one of the building blocks to absorb shaking motion. The joint cover is normally provided so that its upper surface is substantially flat with the upper surface of the one of the building blocks, and when the joint becomes narrow, the joint cover rises and the top surface of the one of the building blocks becomes flat. The joint cover device according to claim 1, wherein the joint cover device slides on the upper part of the joint cover to absorb shaking movement. An inclined surface that allows the joint cover to ride on the upper part of the one frame is formed at least on either the end of the joint cover on the one frame side or the joint side of the one frame. The joint cover device according to claim 2, characterized in that: The joint cover is normally provided so that its lower surface is approximately flat with the upper surface of the one of the building blocks, and when the joint becomes narrow, it slides the upper part of the one of the building blocks into a substantially horizontal state. The joint cover device according to claim 1, wherein the joint cover device moves to absorb shaking motion.

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