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 a joint between wall surfaces between one structure and another structure that are arranged on the left and right sides via a joint, or a joint between wall surfaces between one structure having a seismic isolation device and the other structure that is a foundation structure arranged via a joint. [Background technology]

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

[0003] However, although such a joint cover device can adequately cover the joints, it is necessary to install two types of pressing means, which makes the structure complicated and increases the cost.Since such joints are installed between the foundation structure and the structure that has the seismic isolation device, and are usually not accessed by people, there was a demand for a joint device with a simpler and lower cost structure.

[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 a seismic isolation structure and a non-seismic isolation structure, but they have the disadvantage of spoiling the aesthetic appearance of the outside 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 taken in conjunction with the accompanying drawings.

[0008] However, the drawings are for illustrative purposes only and are not intended to 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 the other skeleton, and is composed of one cover member having an attachment end on one side thereof attached to the one skeleton so as to be rotatable in the front-rear direction, another cover member having an attachment end on the other side thereof attached to the other skeleton so as to be rotatable in the front-rear direction and a protruding end side of the other side which is inserted into the protruding end of 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, and the pressing means is configured to press the one cover member against the other cover member 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 during an earthquake, and when the one cover member and the other cover member collide with each other, the pressing means is configured to press the one cover member against the other cover member 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, and the pressing means is configured to press the one cover member against the other cover member when the one cover member and the other cover member collide with each other, and the pressing means is configured to press the one cover member against the other cover member 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 during an earthquake, and the pressing means is configured to press the one cover member against the other cover member when the one cover member and the other cover member collide with each other, and the pressing means is configured to press the one cover member against the other cover member 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. The inserted state of the one cover member and the other cover member is released. It is characterized by:

[0010] The pressing means of the joint covering device described in claim 2 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 and the other cover member collide, at least one of the two cover members rotates in the forward / backward direction.

[0011] The one cover member of the joint covering device according to claim 3 is formed into a substantially channel steel shape in cross section. Effect 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 can be sealed with one cover member and the other cover member inserted into the one cover member so as to be slidable in the left-right direction, and installation can be performed 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 the event of 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 structure will not be damaged, and the joint cover device can be immediately restored during maintenance after an earthquake. [Brief description 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. 2 is a front view of the joint covering device of the first embodiment. [Diagram 2] Cross-sectional view taken along line 2-2 in Figure 1. [Diagram 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. [Diagram 5] An explanatory diagram of operation when the joint has widened due to an earthquake. [Figure 6] This is an explanatory diagram of the operation when the joint widens significantly due to a large earthquake and the cover member becomes uninserted. [Figure 7] 13 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] A plan view of the structure as it moves forward and backward 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 PREFERRED EMBODIMENTS

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

[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 backward direction, and the up-down direction refers to the up-down direction in Fig. 1. In addition, in the present invention, the framework refers to a structure in which a joint plate can be installed, such as a building, road, slab, elevator shaft, etc., and the entrance includes not only an entrance with a door or a gate, but also a passageway through which people, vehicles, etc. can pass.

[0016] In a first embodiment for carrying out the present invention shown in Figs. 1 to 8, reference numeral 1 denotes a joint cover device for closing a joint (gap) 2 between one body 3 and another body 4. The joint cover device 1 is composed of one cover member 6, one of whose mounting end is attached to one of the main bodies 3 via a hinge member 5 so as to be rotatable in the front-to-rear direction, another cover member 7, the other of whose mounting end is attached to the other main body via a hinge member 5 so as to be rotatable in the front-to-rear direction and whose other protruding end 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 2 is, for example, vertical, and in this case refers to the joint 2 between the wall surfaces 3a, 4a of the main bodies 3, 4, and the present invention is capable of sealing such joints 2.

[0018] In this embodiment, one of the structures 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 notched shape so that the other structure 4, which is a non-seismically isolated structure, can enter through the joint portion 2.

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

[0020] The other skeleton 4 is a non-seismic structure as described above in this embodiment, 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 structure 4 and one of the structures 3 located above the other structure 4 is positioned so as not to interfere with one another even if the one structure 3 and the other structure 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, the one cover member 6 is formed to have a substantially rectangular shape when viewed from the front and 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 part of the one cover member 6, forming a guide section 9 that guides the sliding in the left-right direction. Note that the guide section 9 may be provided with rollers or the like to smooth the sliding of the other cover member 7 in the left-right direction. Furthermore, a member such as a roller may be provided at the bottom of the one cover member 6, and the roller may be grounded 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 one cover member 6 and be rotatable in the front-rear direction. In addition, the hinge member 5 on the side of one body 3 and the hinge member 5 on the side of the other body 4 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 be substantially rectangular in front view and substantially channel steel in cross section, and has a pressing means 8 having an inclined surface on the other protruding end portion. The pressing means 8 may be formed to be curved.

[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 to a length sufficient to prevent it from falling off the one cover member 6 in the event of a normal earthquake. In the event of an unexpected major earthquake, the other cover member 7 may fall off the one cover member 6, but it is desirable that it is inserted to a length sufficient to prevent the one cover member 6 or the other cover member 7 from colliding with the left and right frames 3 and 4.

[0027] When an earthquake causes the frames 3 and 4 to shake left and right and the joint 2 narrows, 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 so that the overlapping width becomes smaller, thereby 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 shake left and right and the joint portion 2 to widen further from the state shown in Figure 5, the other end portion of the other cover member 7 will fall off the guide portion 9 of one cover member 6, as shown in Figure 6, and the inserted state will be released.

[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 one cover member and the other cover member are no longer inserted) 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. However, since 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 with each other.

[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 the one cover member 6 and the other cover member 7 press against each other, at least one or both of the cover members 6, 7 rotate in different forward and backward directions with the hinge member 5 as a fulcrum, and the left and right bodies 3, 4 return to their normal positions without being damaged.

[0032] Although the joint portion 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, so that the one cover member 6 and the other cover member 7 can be returned to the inserted state during maintenance after an earthquake to immediately function as the joint cover device 1 again. The location where the joint cover device 1 of the present invention is provided is between the frame of the foundation and the frame having the seismic isolation device, and is a location where people do not normally enter, so that the joint portion 2 can be covered without any particular problem even if the one cover member 6 and the other cover member 7 are temporarily rotated in different forward and backward directions. In the present invention, "capable of absorbing shaking caused by an earthquake" does not only refer to the case where one cover member 6 and the other cover member 7 follow the shaking caused by an earthquake while remaining inserted, but also refers to the case where, 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] Incidentally, 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 from one cover member 6, it rotates toward the inside (rear side of the joint portion 2) with the hinge member 5 as a fulcrum. When the swinging motion ends in this state, the one cover member 6 is pressed against the front surface of the other cover member 7 and rotates toward the front side with the hinge member 5 as a fulcrum. Therefore, even if the other cover member 7 does not have a curved or inclined surface portion, at least one or both of the cover members 6 and 7 can rotate in different forward and backward directions with the hinge member 5 as a fulcrum, and the left and right bodies 3 and 4 can be returned to their normal positions without being damaged.

[0034] When an earthquake causes the frames 3 and 4 to sway in different forward and backward directions, as shown in FIG. 8, the one cover member 6 and the other cover member 7 rotate forward and backward around the hinge member 5 as a fulcrum to absorb 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 duplicated descriptions will be omitted.

[0036] In the second form for carrying out the present invention shown in Figures 9 to 11, the main difference from the first form for carrying out 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 a plate-shaped cover member, and even with such a joint cover device 1A, it is possible to obtain the same effect as the first form for carrying out the present invention.

[0037] In the embodiment of the present invention, the inclined surface is formed on the other cover member as the pressing means, but it is also possible to form the pressing means in the shape of a curved surface, for example.

[0038] Furthermore, one of the cover members is formed into 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: the 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 body and a wall surface of the other body, comprising: one cover member having one mounting end attached to the one body so as to be rotatable in the front-rear direction; another cover member having the other mounting end attached to the other body so as to be rotatable in the front-rear direction and the protruding end of the other side inserted into the protruding end of the 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 of the joint cover device is configured so that 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 during an earthquake, if the one cover member collides with the other cover member, at least one of the two cover members will rotate in the forward / backward direction.

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 and the other cover member collide, at least one of the two cover members rotates in the forward and backward directions.

3. 3. The joint cover device according to claim 1, wherein the one cover member is formed into a shape of a channel steel in a cross-sectional view.

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