Joint cover device

Abstract

To provide a joint cover device capable of absorbing vibrations caused by earthquakes without damaging a cover member, a skeleton, etc.SOLUTION: A joint cover device is composed of one cover member with an attachment end on one side rotatably provided on one skeleton in a front-back direction, the other cover member with an attachment end on the other side rotatably provided on the other skeleton in the front-back direction and with a protruding end side of the other side slidably inserted into a protruding end of one side of the cover in the left-right direction, and pressing means provided on the protruding end of the other side of the other cover member. The pressing means is configured so that when an inserted state of the one cover member and the other cover member is released during an earthquake and the two skeletons return to their normal state, at least one of both cover members rotates in the front-back direction when the one cover member and the other cover member collide.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a joint cover device that covers the joints between the wall surfaces of one body and the other body that are installed on the left and right sides through a joint, or the joints between the wall surfaces of one body having a seismic isolation device and the other body that is a foundation structure installed through a joint. [Background technology]

[0002] Conventionally, a joint device installed in a vertical joint between left and right bodies has been known, which is "a joint cover device that covers the joint between a wall surface of one body and a wall surface of the other body that is installed on the one body via a joint, the joint cover device comprising a joint cover attached to the front wall surface of the other body so as to be slidable in the left-right direction, a first pressing means member connected to the end of the joint cover on the one body side, extending rearward, and attached so as to be slidable in the front-to-rear direction so as to be in constant contact with the joint side wall surface of the one body, and a second pressing means member connected near the middle of the first pressing means member, extending toward the other body, and attached to the rear wall surface of the other body so as to be slidable in the left-to-right direction" (Patent Document 1).

[0003] However, while such joint cover devices can adequately seal joints, they require the installation of two types of pressing means, which makes the structure complicated and increases costs.Since such joints are installed between the foundation frame and the frame containing the seismic isolation device, and are areas where people do not normally enter, a joint device with a simpler and lower cost structure was desired.

[0004] In addition, joint covers made of spring steel connected in a bellows shape are commonly known as a means of sealing the joints between the walls of such a base-isolated structure and a non-base-isolated structure, but they have the disadvantage of detracting from the aesthetic appearance of the exterior of the structure. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 7153967 Summary of the Invention [Problem to be solved by the invention]

[0006] In view of the above-mentioned conventional drawbacks, the present invention aims to provide a joint cover device that can be easily installed and can absorb shaking caused by earthquakes without damaging the cover members, main body, etc.

[0007] The above and other objects and novel features of the present invention will become more fully apparent from the following description 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] In order to achieve the above object, the joint cover device according to claim 1 of the present invention is a joint cover device for closing a joint between a wall surface of one skeleton and a wall surface of another skeleton, and is composed of one cover member having an attachment end on one side rotatable in the front-rear direction attached to the one skeleton, another cover member having an attachment end on the other side rotatable in the front-rear direction attached to the other skeleton and a protruding end side of the other side inserted into the protruding end on one side of the one cover member so as to be slidable in the left-right direction, and a pressing means provided on the protruding end on the other side of the other cover member, wherein the pressing means is configured such that in the event of an earthquake, when the inserted state of the one cover member and the other cover member is released and the two skeletons return to their normal state, if the one cover member and the other cover member collide, at least one of the two cover members rotates in the front-rear direction, The cover member is configured to release the inserted state of the one cover member from the other cover member. It is characterized by:

[0010] The pressing means of the joint cover device described in claim 2 is provided on the protruding end portion on the other side of the other cover member, and is formed in a curved or inclined surface shape so that when the one cover member collides with the other cover member, at least one of the two cover members rotates in the forward and backward directions.

[0011] The one cover member of the joint covering device according to claim 3 is formed in a substantially channel steel shape in cross section. [Effects of the Invention]

[0012] As is clear from the above description, the present invention provides the following effects. (1) In each of the inventions described in claims 1 to 3, the joint portion can be sealed with one cover member and the other cover member inserted into the one cover member so that it can slide left and right, and installation can be done easily and at low cost. (2) Since an inclined or curved pressing means is provided at the other end of the other cover member, even if the inserted state of one cover member and the other cover member is released in an unexpected large earthquake and they collide, the pressing means can rotate the one cover member and the other cover member in different forward and backward directions. Therefore, even if the inserted state of one cover member and the other cover member is released, the joint cover device or the frame will not be damaged, and the joint cover device can be immediately restored during maintenance after an earthquake. [Brief explanation of the drawings]

[0013] 1 to 8 are explanatory diagrams showing a first embodiment of the present invention. 9 to 11 are explanatory diagrams showing a second embodiment of the present invention. [Figure 1] FIG. 1 is a front view of a joint covering device according to a first embodiment. [Figure 2] Cross-sectional view taken along line 2-2 in Figure 1. [Figure 3] 5A and 5B are explanatory views of one and the other cover members. [Figure 4]An explanatory diagram of operation when the joint has narrowed due to an earthquake. [Figure 5] An explanatory diagram of operation when the joint has widened due to an earthquake. [Figure 6] An explanatory diagram of the operation when the joint widens significantly due to a large earthquake and the cover member is no longer inserted. [Figure 7] 10 is an explanatory diagram of the operation when the cover member is released from the inserted state and both bodies return to the normal state. FIG. [Figure 8] Plan view of the structure when the left and right frames sway in different directions due to an earthquake [Figure 9] FIG. 6 is a front view of a joint covering device according to a second embodiment. [Figure 10] Cross-sectional view taken along line 10-10 in Figure 9. [Figure 11] 5A and 5B are explanatory views of one and the other cover members. DETAILED DESCRIPTION OF THE INVENTION

[0014] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings showing preferred embodiments of the present invention.

[0015] In this specification, the left-right direction refers to the left-right direction in Fig. 1 (viewed from the front), the front-rear direction refers to the downward direction in Fig. 2 as the forward direction and the upward direction as the rearward direction, and the up-down direction refers to the up-down direction in Fig. 1. In addition, in the present invention, the term "framework" refers to a structure in which a joint plate can be installed, such as a building, road, slab, or elevator shaft, and the term "entrance" refers not only to an entrance with a door or a gate, but also to a passageway through which people, vehicles, etc. can pass.

[0016] In a first embodiment of the present invention shown in FIGS. 1 to 8, reference numeral 1 denotes a joint cover device that closes a joint (gap) 2 between one skeleton 3 and another skeleton 4. The joint cover device 1 is composed of one cover member 6, one of whose attachment end portions is attached to one of the main bodies 3 via a hinge member 5 so as to be rotatable in the front-to-back direction, another cover member 7, the other of whose attachment end portion is attached to the other main body via a hinge member 5 so as to be rotatable in the front-to-back direction, and whose other protruding end portion is inserted into one of the protruding end portions of the one cover member 6 so as to be slidable in the left-to-right direction, and a pressing means 8 formed on the other protruding end portion of the other cover member 7.

[0017] Incidentally, the joint portion 2 is, for example, vertical, but here it refers to the joint portion 2 between the wall surfaces 3a, 4a of the main bodies 3, 4, and the present invention is capable of sealing such joint portions 2.

[0018] In this embodiment, one of the main bodies 3 is a seismically isolated structure equipped with a seismic isolation device (not shown), and when viewed from the front, the lower part is formed in a cutout shape so that the other main body 4, which is a non-seismically isolated structure, can enter through the joint portion 2.

[0019] For example, a structure can be considered in which a curb or the like is formed protruding outward from one of the base isolation structures, the main body 3, and the other main body 4 is positioned below the curb with a joint 2 interposed between them.

[0020] In this embodiment, the other skeleton 4 is a non-base-isolated structure as described above, and is provided so as to face the one skeleton 3 via a vertical joint 2. In this embodiment, the other skeleton 4 is made up of a foundation and a thick wall-like structure provided to stand upright.

[0021] In this embodiment, the vertical gap between the upper end of the other body 4 and one body 3 located above the other body 4 is positioned so that there is no interference even if the one body 3 and the other body 4 sway left and right or forward and backward during an earthquake.

[0022] One mounting end of one cover member 6 is attached to a wall surface 3a on the joint side of one body 3 via a hinge member 5 so as to be rotatable in the front-rear direction.

[0023] In this embodiment, this one cover member 6 has a substantially rectangular shape when viewed from the front, and is formed in a substantially channel steel shape when viewed in cross section. The other protruding end of the other cover member 7 is inserted into the inner portion of the one cover member 6, forming a guide portion 9 that guides left-right sliding. Note that the guide portion 9 may be provided with a roller or the like to smooth the left-right sliding of the other cover member 7. Furthermore, a member such as a roller may be provided at the bottom of one cover member 6, and this roller may be placed in contact with the ground to support the one cover member 6.

[0024] The other mounting end of the other cover member 7 is attached to the wall surface 4a on the joint side of the other body 4 via a hinge member 5 so as to face the one cover member 6 and be rotatable in the front-to-rear direction. In addition, the hinge member 5 on the one body 3 side and the hinge member 5 on the other body 4 side have the same structure, and are provided as a pair on the left and right as connecting members.

[0025] In this embodiment, the other cover member 7 is formed to have a substantially rectangular shape when viewed from the front and a substantially channel steel shape when viewed in cross section, and has a pressing means 8 having an inclined surface formed on the other protruding end portion. The pressing means 8 may also be formed to have a curved surface.

[0026] The other protruding end of the other cover member 7 is normally inserted into the guide portion 9 of the one cover member 6. The other end of the other cover member 7 is inserted by a length that will prevent it from falling off the one cover member 6 in the event of a normal earthquake. Note that in the event of an unexpectedly large earthquake, the other cover member 7 may fall off the one cover member 6, but it is desirable that it is inserted by a length that will prevent the one cover member 6 or the other cover member 7 from colliding with the left and right bodies 3, 4.

[0027] When an earthquake causes the main bodies 3 and 4 to shake left and right and the joint 2 to narrow, as shown in Figure 4, the other end of the other cover member 7 slides further into the one cover member 6, absorbing the shaking caused by the earthquake.

[0028] When an earthquake causes the frames 3 and 4 to shake left and right and the joint 2 to widen, as shown in Figure 5, one cover member 6 and the other cover member 7 slide left and right to reduce the overlap width, absorbing the shaking caused by the earthquake without opening the joint 2.

[0029] If an unexpected large earthquake causes the bodies 3 and 4 to sway left and right, widening the joint 2 from the state shown in Figure 5, the other end of one cover member 7 will fall off from the guide portion 9 of the other cover member 6, and the inserted state will be released, as shown in Figure 6.

[0030] When the shaking caused by the earthquake ends and the two bodies return to their normal state from the state shown in Figure 6 (where the insertion state of the one cover member and the other cover member is released), there is a possibility that the other end of the other cover member 7 will accidentally be inserted into the guide portion 9 of one cover member 6, but because the one cover member 6 and the other cover member 7 are only attached by the hinge member 5, the axes may become misaligned and the other protruding ends of the one cover member 6 and the other cover member 7 may collide.

[0031] Even in such a case, a curved or inclined pressing means 8 is formed on the other protruding end of the other cover member 7, so that when one cover member 6 and the other cover member 7 press against each other, at least one or both of the cover members 6 and 7 rotate in different forward and backward directions with the hinge member 5 as a fulcrum, and the left and right bodies 3 and 4 return to their normal positions without being damaged.

[0032] Although the joint 2 cannot be completely closed when the one cover member 6 and the other cover member 7 are rotated in different forward and backward directions, the cover members 6, 7 and the frames 3, 4 are not damaged, and therefore the one cover member 6 and the other cover member 7 can be returned to their inserted state during maintenance after an earthquake so that the joint cover device 1 can be immediately used again. The joint cover device 1 of the present invention is installed between the foundation frame and the frame having the seismic isolation device, and is normally not accessible to people, so that the joint 2 can be covered without any problems even if the one cover member 6 and the other cover member 7 are temporarily rotated in different forward and backward directions. Incidentally, in the present invention, "being able to absorb shaking caused by an earthquake" does not only mean that one cover member 6 and the other cover member 7 can follow shaking caused by an earthquake while remaining inserted, but also means that even if one cover member 6 and the other cover member 7 are released from the inserted state, the cover members 6, 7 and the main bodies 3, 4, etc. are not damaged and the joint cover device 1 can be immediately used again during maintenance after an earthquake.

[0033] The other cover member 7 may be biased toward the inside (rear side) of the joint portion 2 by a biasing device such as a spring. In such a case, the pressing means 8 may be configured using only this biasing device. That is, by using such a biasing device, when the other cover member 7 falls off one of the cover members 6, it rotates inward (toward the rear side of the joint portion 2) around the hinge member 5 as a fulcrum. When the swinging motion ends in this state, one of the cover members 6 is pressed against the front surface of the other cover member 7, and rotates forward around the hinge member 5 as a fulcrum. Therefore, even if the other cover member 7 does not have a curved or inclined surface, at least one or both of the cover members 6, 7 can rotate in different forward and backward directions around the hinge member 5 as a fulcrum, and the left and right bodies 3, 4 can be returned to their normal positions without damage.

[0034] When an earthquake causes the bodies 3 and 4 to sway in different forward and backward directions, as shown in FIG. 8, one cover member 6 and the other cover member 7 rotate forward and backward around the hinge member 5 as a fulcrum, thereby absorbing the shaking caused by the earthquake.

[0035] [Different modes for carrying out the invention] Next, different embodiments for carrying out the present invention will be described with reference to Figures 9 to 11. In describing these different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention will be designated by the same reference numerals, and redundant description will be omitted.

[0036] In the second form for implementing the present invention shown in Figures 9 to 11, the main difference from the first form for implementing the present invention is that one cover member 6A is box-shaped with the other end side open, the inside of one cover member 6 is a guide portion 9, and the other cover member 7A is plate-shaped, and even with such a joint cover device 1A, it is possible to obtain the same effects as the first form for implementing the present invention.

[0037] In the embodiment of the present invention, an inclined surface is formed on the other cover member as the pressing means, but for example, a curved pressing means may be formed.

[0038] Furthermore, one of the cover members is formed in a generally channel steel or box shape, but it may also be configured such that a rail-shaped guide portion is fixed to a plate-shaped member and the other cover member is inserted into this guide portion. [Industrial Applicability]

[0039] The present invention finds application in the industry of manufacturing joint cover devices. [Explanation of symbols]

[0040] 1, 1A: joint cover device, 2: joint part, 3: One body, 4: The other body, 5: hinge member 6, 6A: one cover member, 7, 7A: other cover member; 8: pressing means; 9: Guide section.

Claims

1. A joint cover device for closing a joint between a wall surface of one frame and a wall surface of another frame, comprising: one cover member having an attachment end on one side rotatable in the front-rear direction attached to the one frame; another cover member having an attachment end on the other side rotatable in the front-rear direction attached to the other frame and having a protruding end on the other side inserted into the protruding end on one side of the one cover member so as to be slidable in the left-right direction; and a pressing means provided on the other cover member. The pressing means is a joint cover device configured so that, in the event of an earthquake, when the inserted state of the one cover member and the other cover member is released and the two bodies return to their normal state, if the one cover member collides with the other cover member, at least one of the two cover members will rotate in the forward and backward directions, thereby releasing the inserted state of the one cover member and the other cover member.

2. The joint cover device described in claim 1, characterized in that the pressing means is provided on the other side of the protruding end of the other cover member, and is formed in a curved or inclined surface shape so that when the one cover member collides with the other cover member, at least one of the two cover members rotates in the forward or backward direction.

3. 3. The joint cover device according to claim 1, wherein the one cover member is formed in a substantially channel steel shape in cross section.

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