Joint cover device

Abstract

To propose a joint cover device that covers horizontal and vertical joints provided between two adjacent structures, and that can operate stably during an earthquake.SOLUTION: A floor cover body 11 covering a horizontal joint 115 is provided so as to be movable in a front-back direction relative to a frame 101 and movable in a right-left direction relative to an elevator shaft 102. A wall cover member 42 covering a vertical joint 116 is connected to a support column 7 erected at an end of the floor cover body 11 and to a connecting base 31 disposed on the elevator shaft 102, and is provided so as to be expandable and contractible in a width direction of the vertical joint 116. This configuration makes the floor cover body 11 follow a relative movement in a width direction of the horizontal joint 115, and makes the wall cover member 42 follow a relative movement in the width direction of the vertical joint 116, thus enabling stable and smooth operation following a relative displacement in the front-back and right-left directions.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a joint covering device for closing horizontal and vertical joints between adjacent structures. [Background technology]

[0002] In buildings such as apartment buildings and buildings that have elevators, seismic isolation devices are installed in the building's framework, and the elevator shaft is fixed to the ground, so joints are installed between the building's framework and the elevator shaft. These joints include horizontal joints (hereinafter referred to as horizontal joints) located between the elevator shaft and the floor in front of it, and vertical joints (hereinafter referred to as vertical joints) located between the elevator shaft and the walls on its left and right sides. Joint cover devices are installed to close these horizontal and vertical joints.

[0003] For example, Patent Document 1 proposes a configuration of such a joint cover device. This configuration includes a sliding frame attached to the front wall of an elevator shaft so as to be movable laterally in the left-right direction, a floor plate having one side edge fixed to the lower part of the sliding frame and the other side edge resting on the side edge of the floor, and a pair of expandable wall covers each having one side attached to both the left and right sides of the sliding frame and the other attached to the side edge of the elevator shaft. With this configuration, when the building frame and the elevator shaft are displaced relative to each other in the left-right direction, the wall covers can expand and contract in the left-right direction along the sliding frame to accommodate the relative displacement, and when the elevator shaft and the floor are displaced relative to each other in the direction toward or away from each other, the floor covers can slide on the floor to accommodate the relative displacement. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-13214 Summary of the Invention [Problem to be solved by the invention]

[0005] In the joint cover device of Patent Document 1, a support means movably attaches the sliding frame to the elevator shaft and supports the sliding frame and left and right wall cover bodies. Here, the wall cover body is heavy, consisting of a link mechanism and multiple plates, and the sliding frame supports the left and right wall cover bodies in an expandable and contractible manner, making it a heavy object with a robust structure. However, in order to configure the support means to support the weight of the wall cover bodies and the sliding frame and to smoothly move the sliding frame left and right during an earthquake, a relatively large and specialized structure is required, making it difficult to install in practice. Furthermore, because the sliding frame is configured to contact the left and right side walls adjacent to the elevator shaft via vertical joints, there is a risk of deformation during an earthquake.

[0006] The present invention proposes a joint cover device that can be installed on adjacent structures via vertical and horizontal joints and that can operate stably during an earthquake. [Means for solving the problem]

[0007] The present invention provides a joint cover device that is provided on a first structure having a front wall portion adjacent to a floor portion constituting a passageway via a horizontal joint and a first side wall portion extending rearward from a side edge of the front wall portion, and a second structure having the floor portion and a second side wall portion adjacent to and facing the first side wall portion via a vertical joint continuous with one longitudinal end of the horizontal joint, and that covers the horizontal joint and the vertical joint, the joint cover device comprising: floor joint cover means that spans the horizontal joint, one side edge of which is attached to the front wall portion of the first structure so as to be movable in the longitudinal direction of the horizontal joint, and the other side edge of which rests on a side edge of the floor portion, and that is provided so as to be movable in the width direction of the horizontal joint relative to the second structure; This joint covering device is characterized by comprising a support pillar that is erected at the end of the floor cover body on the second side wall portion side and moves integrally with the floor cover body, and a wall joint covering means that is connected to the support pillar and the side edge of the first structure opposite the support pillar, spans the vertical joint, and has a wall covering member that is extendable and contractible in the width direction of the vertical joint.

[0008] In this configuration, a support column is erected at the end of the floor cover body to support one end of the wall covering member, and the wall covering member is supported by the support column and the first structure. As a result, when the first structure and the second structure move relatively in the width direction of the horizontal joint during an earthquake, the wall covering member moves in the width direction integrally with the first structure, while when the first structure and the second structure move relatively in the width direction of the vertical joint (the longitudinal direction of the horizontal joint), the wall covering member expands and contracts. In other words, the wall covering member can expand and contract by exclusively following the relative movement in the width direction of the vertical joint (the longitudinal direction of the horizontal joint). In this configuration, the floor joint covering means is solely responsible for following the relative movement in the width direction of the horizontal joint, and the wall joint covering means is solely responsible for following the relative movement in the width direction of the vertical joint, thereby enabling the floor cover body and the wall covering member to operate stably and smoothly during an earthquake.

[0009] Furthermore, as described above, the configuration of the present invention has both ends of the wall cover member connected to the support pillar and the first structure, so that the wall cover member can be stably supported with a simpler structure than the conventional configuration described above, and the extension and contraction operation of the wall cover member can be performed more stably.

[0010] In addition, in this configuration, it is preferable that the wall cover member has an expandable holder that is connected to each of the support columns and the side edge of the first structure opposite the support column and is arranged to be expandable and contractible in the width direction of the vertical joint, and a plurality of cover plates that are arranged in parallel in the width direction of the vertical joint and each connected to the expandable holder.

[0011] In the joint covering device of the present invention described above, a configuration is proposed in which a flat sliding panel is provided on the second side wall portion of the second structure and is movably arranged along the second side wall portion, and the front edge of the sliding panel is fixed to a support column erected on the floor covering body.

[0012] In this configuration, when the front wall of the first structure and the floor of the second structure move relative to each other in a direction that brings them closer together (in a direction that narrows the width of the horizontal joint), the gap that occurs between the support pillar and the front edge of the second side wall of the second structure can be covered by the slide panel, thereby preventing situations such as objects or people becoming caught in the gap.

[0013] In the joint covering device of the present invention described above, a configuration is proposed in which the floor covering body of the floor joint covering means is movable in the width direction of the horizontal joint relative to the second structure but is unable to move in the longitudinal direction of the horizontal joint relative to the second structure.

[0014] In this configuration, the floor joint covering means is further specialized to follow the relative movement in the width direction of the horizontal joint between the first structure and the second structure, and accordingly, the wall joint covering means can be specialized to follow the relative movement in the width direction of the vertical joint, which allows the floor covering body and the wall covering member to operate more stably and smoothly during an earthquake. [Effects of the Invention]

[0015] As described above, the joint covering device of the present invention can stably and smoothly operate the floor cover body and the wall covering member by following the relative movement between the first structure and the second structure during an earthquake. Furthermore, the configuration of the present invention can stably support the wall covering member with a simpler structure than the conventional configuration described above, and can perform the expansion and contraction operation of the wall covering member more stably. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 2 is a front view showing the joint covering device 1 in an installed state. [Figure 2] FIG. 2 is a perspective view showing the joint covering device 1 in an installed state. [Figure 3] FIG. 2 is a plan view showing the state in which the joint covering device 1 is installed. [Figure 4] FIG. 2 is a rear view showing the joint covering device 1 in an installed state, with the elevator shaft omitted. [Figure 5] 1 is an explanatory diagram showing a manner in which the floor cover body 11 and the mounting frame 12 are attached to each other. [Figure 6] 10 is an explanatory diagram showing the support frame 13 that supports the left edge of the floor cover body 11. FIG. [Figure 7] 10 is an explanatory diagram of the operation of the joint covering device 1 when the second side wall portion 112 of the skeleton 101 and the first side wall portion 106 of the elevator shaft 102 are displaced relatively in the direction of moving away from each other. FIG. [Figure 8] 10 is an explanatory diagram of the operation of the joint covering device 1 when the second side wall portion 112 of the skeleton 101 and the first side wall portion 106 of the elevator shaft 102 are displaced relative to each other in a direction in which they approach each other. FIG. [Figure 9] 10 is an explanatory diagram of the operation of the joint covering device 1 when the floor portion 113 of the skeleton 101 and the first front wall portion 105 of the elevator shaft 102 are displaced relative to each other in a direction in which they approach each other. [Figure 10] 10 is an explanatory diagram of the operation of the joint covering device 1 when the floor portion 113 of the skeleton 101 and the first front wall portion 105 of the elevator shaft 102 are displaced relatively in the direction of moving away from each other. FIG. [Figure 11]FIG. 10 is a perspective view showing the installation state of a joint covering device 81 of another example. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of the present invention will be described with reference to the accompanying drawings. 1 to 3, joint cover device 1 of this embodiment is installed between adjacent building skeleton 101 and elevator shaft 102 via joints 115, 116, and covers these joints 115, 116. Building skeleton 101 is supported at its lower part by a seismic isolation device (not shown) with a shock-absorbing function, while elevator shaft 102 has its lower part fixed to the ground. Joints 115, 116 are formed with a predetermined width between building skeleton 101 and elevator shaft 102, and can absorb relative horizontal shaking between building skeleton 101 and elevator shaft 102 during an earthquake.

[0018] In the following description of this embodiment, the longitudinal direction of the horizontal joint 115 provided immediately before the elevator shaft 102 is referred to as the left-right direction. Here, left and right are defined as the state in which the first front wall portion 105 of the elevator shaft 102 is viewed from the front (as shown in FIG. 1). The side of the horizontal joint 115 from the elevator shaft 102 is referred to as the front side (front side), and the opposite side is referred to as the back side (back side or rear side). In other words, the width direction of the horizontal joint 115 corresponds to the front-back direction, and the longitudinal direction of the horizontal joint 115 (the width direction of the vertical joint 116) corresponds to the left-right direction.

[0019] The skeleton 101 of the building is arranged to surround the elevator shaft 102, and a joint having a horizontal joint 115 and a vertical joint 116 is provided between the elevator shaft 102 and the first front wall 105. The elevator shaft 102 comprises a first front wall 105 and left and right first side walls 106, 106 extending rearward from both left and right side edges of the first front wall 105. The skeleton 101 of the building comprises left and right second side walls 112, 112 facing the left and right first side walls 106, respectively, left and right second front walls 111, 111 extending outward to the left and right from the front side edges of the left and right second side walls 112, 112, respectively, and a floor 113 provided on the front side of the first front wall 105. In a normal state, the positions of the first front wall portion 105 of the elevator shaft 102 and the second front wall portions 111, 111 of the skeleton 101 in the front-to-back direction are approximately the same. The first front wall portion 105 of the elevator shaft 102 and the floor portion 113 of the skeleton 101 are adjacent to each other via a horizontal joint 115 in the left-to-right direction, and the left and right first side wall portions 106, 106 of the elevator shaft 102 and the left and right second side wall portions 112, 112 of the skeleton 101 are adjacent to each other via vertical joints 116, 116 in the up-down direction. The horizontal joint 115 is formed so that its left and right side edges are continuous with the left and right second side wall portions 112, 112, respectively, in the front-to-back direction. These horizontal joints 115 and vertical joints 116, 116 are each provided with a predetermined width, with the left vertical joint 116 continuing to the left end of the horizontal joint 115 and the right vertical joint 116 continuing to the right end of the horizontal joint 115.

[0020] The joint cover device 1 of this embodiment comprises a floor joint cover device 2 that covers the horizontal joint 115, and left and right wall joint cover devices 3, 3 that cover the left and right vertical joints 116, 116, respectively, and further comprises left and right gap cover devices 4 that cover gaps that occur on both the left and right sides when the floor portion 113 of the main body 101 and the first front wall portion 105 of the elevator shaft 102 move relative to each other in the direction of approaching each other (hereinafter referred to as the approach direction).

[0021] The joint cover device 1 of this embodiment is configured with wall joint cover devices 3, 3 of the same structure arranged symmetrically on the left and right, and the floor joint cover device 2 is also configured symmetrically on the left and therefore only the left side will be described below and the right side will not be described.

[0022] 2 and 3, the floor joint covering device 2 comprises a rectangular plate-shaped floor covering body 11 that spans a horizontal joint 115, and an attachment frame 12 to which the back edge of the floor covering body 11 is attached so that it can move left and right. A support step edge 14 that is recessed to a predetermined depth below the upper surface of the floor portion 113 is provided along the horizontal joint 115 on the side edge of the floor portion 113 of the frame 101 that faces the first front wall portion 105 of the elevator shaft 102, and the front edge of the floor covering body 11 is supported by the support step edge 14 so that it can slide in the front-to-back direction. The left and right side edges of the support step edge 14 are formed continuous with the left and right side edges of the horizontal joint 115 in the front-to-back direction. The floor cover body 11 is formed to have approximately the same length in the left-right direction as the support step edge 14, and when placed on the support step edge 14, both left and right ends of the floor cover body 11 abut against (or are close to via a small gap) both left and right side edges of the support step edge 14. In this way, the floor cover body 11 is placed on the support step edge 14 so that it can move in the front-to-back direction but cannot move in the left-to-right direction.

[0023] In this embodiment, a protective cover (not shown) covering the support step edge 14 is provided on the floor cover body 11 while the floor cover body 11 is placed on the support step edge 14, and the upper surface of the protective cover and the upper surface of the floor portion 113 are maintained at the same height. That is, the floor cover body 11 is inserted into the gap formed between the support step edge 14 and the protective cover and is placed on the support step edge 14 so as to be slidable in the front-to-back direction. In addition, as shown in Figures 5 and 6, support receiving frames 13 are provided on the left and right side edges of the horizontal joint 115 and the second side wall portion 112 to support the left and right side edges of the floor cover body 11 so as to be movable in the front-to-back direction. The support receiving frames 13 are provided to support the floor cover body 11 at the same height as the support step edge 14. This support frame 13 stably supports the floor cover body 11 when the floor portion 113 of the body 101 and the first front wall portion 105 of the elevator shaft 102 move relative to each other in the direction in which they move apart (hereinafter referred to as the separation direction).

[0024] As shown in Fig. 5, the floor cover body 11 comprises a flat main cover portion 16 and a linking portion 17 extending downward from the rear edge of the main cover portion 16. Here, the linking portion 17 is formed to have a substantially L-shaped cross section and is provided across the left and right direction of the floor cover body 11. In this embodiment, the linking portion 17 is joined to the main cover portion 16 and provided integrally. In addition, a step portion that is supported by the support frame 13 is provided on each of the left and right side edges of the floor cover body 11 (see Fig. 6).

[0025] The mounting frame 12 is fixed to the first front wall 105 of the elevator shaft 102, and the linking portion 17 of the floor covering body 11 is attached to the mounting frame 12 so as to be slidable in the left-right direction. The mounting frame 12 includes a retaining edge 21 fixed to the first front wall 105, a support edge 22 extending from the lower edge of the retaining edge 21 toward the front, a locking edge 23 extending upward from the front edge of the support edge 22, and an inclined edge 24 extending diagonally upward toward the rear from the upper edge of the locking edge 23, and is provided across the left-right direction of the first front wall 105. A gap is provided between the upper end (rear end) of the inclined edge 24 and the retaining edge 21 so that the linking portion 17 of the floor covering body 11 can be inserted from above. In this embodiment, the mounting frame 12 is formed by bending a thin metal plate.

[0026] The linking portion 17 of the floor cover body 11 is attached to the attachment frame 12 by being inserted between the locking edge portion 23 and the holding edge portion 21 and supported by the support edge portion 22. In this attached state, the attachment frame 12 supports the rear edge of the floor cover body 11 and has a guide function that guides the linking portion 17 of the floor cover body 11 so that it can move relatively in the left-right direction. As a result, the floor cover body 11 can slide in the left-right direction relative to the elevator shaft 102, but cannot move in the front-to-back direction relative to the elevator shaft 102.

[0027] 2 and 3, the floor cover body 11 has the connecting portion 17 attached to the mounting frame 12 of the first front wall portion 105 and the front edge rests on the support step edge 14 of the floor portion 113, covering the horizontal joint 115. Since the front edge of the floor cover body 11 is a free end on the support step edge 14, it can slide in the front-to-back direction relative to the floor portion 113 (the main body 101), but since the left and right side edges abut against the left and right side edges of the support step edge 14, it cannot move in the left-to-right direction relative to the floor portion 113 (the main body 101). For this reason, when the main body 101 and the elevator shaft 102 are displaced relative to each other in the width direction (front-to-back direction) of the horizontal joint 115, the floor cover body 11 follows the relative displacement and moves integrally with the elevator shaft 102 in the front-to-back direction, whereas when the main body 101 is displaced relative to each other in the left-to-right direction, the floor cover body 11 follows the relative displacement and moves integrally with the main body 101 in the left-to-right direction.

[0028] As shown in Figures 1 to 4, support columns 7 are erected on the rear end portions of both the left and right sides of the floor cover body 11, with the left support column 7 being close to the right edge of the second front wall portion 111 (the front edge of the second side wall portion 112) (the right support column 7 is provided bilaterally symmetrically with the left side). The base end (lower end) of this support column 7 is fixed to the upper surface of the floor cover body 11, and moves integrally with the floor cover body 11 in the event of an earthquake (see Figures 7 to 10). In this embodiment, the support column 7 is made of square pipe-shaped steel material.

[0029] 2 to 4, the wall joint covering device 3 comprises a connecting base 31 fixed to the first front wall portion 105 of the elevator shaft 102, a plurality of expandable holders 32 spanning the connecting base 31 and the support pillars 7, and wall covering members 42 connected to the expandable holders 32. The connecting bases 31 are disposed on the left and right side edges of the elevator shaft 102, facing the support pillars 7 in the left-right direction (see FIG. 1), and are made of square pipe-shaped steel material.

[0030] As shown in Fig. 4, a plurality of expandable holders 32 are stretched across the connecting base 31 and the support column 7. Both ends of each expandable holder 32 are pivotally connected to the connecting base 31 and the support column 7 by mounting brackets 39, 39 so as to be freely rotatable in the vertical direction. In this embodiment, two expandable holders 32 are arranged across the connecting base 31 and the support column 7 with a gap between them in the vertical direction. Each expandable holder 32 is made up of a first expandable link body 33 and a second expandable link body 34 arranged side by side in the front-to-back direction.

[0031] The first telescopic link body 33 is formed by a plurality of link pieces (not shown) pivotally connected in a pantograph shape, and has a configuration in which a plurality of X-shaped link element portions 38, each of which has two link pieces pivotally connected to each other at their centers, are arranged in a row in the left-right direction. Here, the plurality of link element portions 38 are lined up in the left-right direction, and the ends of the link pieces of adjacent link element portions 38 are pivotally connected to each other in a rotatable manner. Furthermore, a pair of short link pieces (not shown), one end of which is rotatably connected to each other, are pivotally connected to the end of each link piece of the link element portions 38 at both left and right ends. In this manner, the pantograph-shaped first telescopic link body 33 is formed by the plurality of link element portions 38 and the short link pieces. The left and right ends of this first telescopic link body 33 (one end of the short link pieces) are pivotally connected to the mounting brackets 39 in a rotatable manner.

[0032] The second telescopic link body 34 has link pieces (not shown) that are shorter than the link pieces of the first telescopic link body 33, pivoted in a pantograph shape similar to the first telescopic link body 33. The left and right ends of the second telescopic link body 34 are pivoted rotatably to the mounting brackets 39 coaxially with the left and right ends of the first telescopic link body 33. The second telescopic link body 34 has the same configuration as the first telescopic link body 33 except that its link pieces (link element portions) and the short link pieces at both left and right ends are shorter than the first telescopic link body 33 and the number of link element portions provided is different, so details will be omitted.

[0033] In this second telescopic link body 34, every other link element portion constituting the second telescopic link body 34 in the left-right direction is coaxially pivotally connected to the link element portion 38 of the first telescopic link body 33. In this way, the first telescopic link body 33 and the second telescopic link body 34 have their respective link element portions pivotally connected coaxially and their respective left and right ends pivotally connected coaxially to left and right mounting brackets 39, 39, and are spanned between the connecting base 31 and the support column 7. In this embodiment, the first telescopic link body 33 is constituted by two link element portions 38, and the second telescopic link body 34 is constituted by five link element portions.

[0034] The telescopic holder 32 is configured with a first telescopic link body 33 and a second telescopic link body 34 arranged side by side, and when the main body 101 and the elevator shaft 102 are displaced relative to each other in the direction of moving the vertical joint 116 closer to and away from each other (left and right direction), the relative displacement causes the first telescopic link body 33 and the second telescopic link body 34 to telescope and expand together.

[0035] Furthermore, a plurality of support rods 41, each long in the vertical direction, are arranged side by side in the left-right direction and span the two upper and lower expandable holders 32, 32. The number of support rods 41 is the same as the number of link element portions constituting the second expandable link body 34 (five), and they are each pivotally connected coaxially at the position where the two link pieces constituting each link element portion are pivotally connected. As a result, the support rods 41 are arranged side by side at intervals in the left-right direction.

[0036] A rectangular cover plate 43 elongated in the vertical direction is fixed to each support rod 41. These cover plates 43, a support cover plate 44 fixed to the support column 7, and a connecting cover plate 45 fixed to the connecting base 31 constitute a wall cover member 42 that covers the vertical joint 116. In this wall cover member 42, as shown in FIG. 3, the side edges of adjacent cover plates 43-45 are slidably overlapped. Here, the right edge of the adjacent cover plate 43 overlaps the surface of the left edge of the connecting cover plate 45, and the right edge of the right cover plate 43 overlaps the surface of the left edge of the left cover plate 43. The right edge of the support cover plate 44 overlaps the surface of the left edge of the rightmost cover plate 43. Since the cover plates 43 to 45 are stacked in a stepped manner in this manner, the cover plates 43 to 45 slide left and right in accordance with the left and right expansion and contraction operation of the expandable holder 32, and the wall cover member 42 expands and contracts left and right.

[0037] As shown in Figures 2 to 4, the gap cover device 4 includes a flat sliding panel 51 fixed to the support column 7, and guide members 52, 53 that move the sliding panel 51 in the front-to-back direction along the second side wall 112 of the frame 101. The front edge of the sliding panel 51 is fixed to the support column 7, and the sliding panel 51 is disposed substantially parallel to the second side wall 112. The upper and lower edges of the sliding panel 51 are supported by the guide members 52, 53 so as to be movable in the front-to-back direction. When the frame 101 and the elevator shaft 102 are displaced relative to each other in the front-to-back direction, the sliding panel 51 moves in the front-to-back direction integrally with the floor cover body 11 along the second side wall 112 (see Figures 9 and 10).

[0038] As shown in Figure 9, the gap cover device 4 is configured to cover the gap that occurs between the support column 7 and the second front wall 111 with the slide panel 51 when the floor portion 113 and the first front wall 105 move toward each other. That is, when the frame 101 and the elevator shaft 102 move relative to each other in a direction that narrows the width of the horizontal joint 115, the floor cover body 11 moves toward the front together with the elevator shaft 102. As a result, the support column 7 moves toward the front, and the support column 7 moves away from the second front wall 111 toward the front, creating a gap between them. This gap is covered by the slide panel 51 that moves toward the front together with the support column 7.

[0039] Next, the operation of the joint covering device 1 of this embodiment will be described. As shown in Figure 7, when an earthquake causes relative displacement between the left second side wall 112 of the skeleton 101 and the left first side wall 106 of the elevator shaft 102 in the direction separating them (the direction in which the width of the vertical joint 116 widens), the floor cover 11 moves integrally with the skeleton 101, causing the support columns 7 erected on the floor cover 11 to separate from the connecting base 31 fixed to the elevator shaft 102. Accordingly, the expandable holder 32 of the wall joint cover device 3 extends in the left-right direction, causing each cover plate 43 and connecting cover plate 45 to move rightward, thereby extending the wall cover member 42. In this way, the wall cover member 42 extends in response to the relative displacement between the left first side wall 106 and the left second side wall 112 in the direction separating them, thereby keeping the left vertical joint 116 covered.

[0040] Here, when the left first side wall portion 106 and the left second side wall portion 112 are displaced relative to each other in the direction away from each other, the right first side wall portion 106 and the right second side wall portion 112 are displaced relative to each other in the direction toward each other (not shown). In the right wall joint covering device 3, the wall covering member 42 contracts in the left-right direction in response to this relative displacement in the direction toward each other. This allows the right vertical joint 116 to be kept covered. The operation of this right wall joint covering device 3 is the same as the operation of the left wall joint covering device 3 described below when the left first side wall portion 106 and the left second side wall portion 112 are displaced relative to each other in the direction toward each other, so details will be omitted.

[0041] 8, when an earthquake causes relative displacement of the second side wall portion 112 on the left side of the frame 101 and the first side wall portion 106 on the left side of the elevator shaft 102 in a direction in which they approach each other (a direction in which the width of the vertical joint 116 narrows), the support column 7 and the connecting base 31 approach each other, causing the expandable holder 32 of the wall joint cover device 3 to contract in the left-right direction, and each cover plate 43 and connecting cover plate 45 moves to the left, contracting the wall cover member 42. In this way, the wall cover member 42 contracts in response to the relative displacement in the direction in which they approach each other, thereby keeping the left-side vertical joint 116 covered.

[0042] Here, when the left first side wall portion 106 and the left second side wall portion 112 relatively displace in the direction toward each other, the right first side wall portion 106 and the right second side wall portion 112 relatively displace in the direction away from each other. In the right wall joint covering device 3, the wall covering member 42 extends in the left-right direction in response to this relative displacement in the direction away from each other. This allows the right vertical joint 116 to be kept covered. The operation of this right wall joint covering device 3 is the same as the operation of the left wall joint covering device 3 described above when the left first side wall portion 106 and the left second side wall portion 112 relatively displace in the direction away from each other, so a detailed description will be omitted.

[0043] On the other hand, as shown in Figure 9, when an earthquake causes relative displacement between the floor 113 of the building frame 101 and the first front wall 105 of the elevator shaft 102 in a direction in which they approach each other (a direction in which the width of the horizontal joint 115 narrows), the floor cover 11 moves toward the surface with respect to the floor 113 to follow the relative displacement. This allows the horizontal joint 115 to be kept covered. Then, with this relative displacement in the approaching direction, the floor cover 11 moves toward the surface with respect to the second front wall 111, so that the support column 7 erected on the floor cover 11 protrudes toward the surface beyond the second front wall 111. Accordingly, the sliding panel 51 of the gap cover device 4 moves toward the surface together with the support column 7, allowing the sliding panel 51 to cover the gap between the support column 7 and the second front wall 111.

[0044] 10, when an earthquake causes relative displacement between floor 113 of frame 101 and first front wall 105 of elevator shaft 102 in the direction of separation (the direction in which horizontal joint 115 widens), floor cover 11 moves backward with respect to floor 113 to follow the relative displacement. This makes it possible to keep horizontal joint 115 covered. With this relative displacement in the direction of separation, floor cover 11 moves backward with respect to second front wall 111, and therefore slide panel 51 moves backward together with floor cover 11.

[0045] As described above, the joint covering device 1 of this embodiment is configured such that the floor covering body 11 covering the horizontal joint 115 is movable relative to the frame 101 only in the front-to-back direction and only in the left-to-right direction relative to the elevator shaft 102, and the wall covering member 42 covering the vertical joint 116 is spanned between the support column 7 erected on the floor covering body 11 and the connecting base 31 disposed on the first front wall portion 105. In this configuration, since the wall covering member 42 is connected to the support column 7 which moves integrally with the floor covering body 11 in the horizontal direction, the wall covering member 42 expands and contracts solely in response to the relative displacement between the frame 101 and the elevator shaft 102 in the left-to-right direction, and this expansion and contraction operation can be performed stably and smoothly. As a result, the roles are divided so that the floor covering body 11 (floor joint covering device 2) plays a role of solely following the relative displacement in the front-to-back direction between the frame 101 and the elevator shaft 102, and the wall covering member 42 plays a role of solely following the relative displacement in the left-to-right direction, so that the relative displacement in the front-to-back direction and the left-to-right direction can be stably and appropriately followed. In other words, the joint covering device 1 of this embodiment is configured so that the support pillars 7 are erected on the floor covering body 11 and the wall covering members 42 are connected to the support pillars 7, thereby achieving the effect of stably and appropriately following the relative displacement.

[0046] Furthermore, in the configuration of this embodiment, the support column 7 is provided with a slide panel 51 that is movable in the front-to-back direction along the second side wall 112 of the skeleton 101, and therefore it is possible to cover a gap that occurs between the support column 7 and the second front wall 111 when the elevator shaft 102 is displaced toward the front relative to the skeleton 101. This eliminates the need to configure the second side wall to protrude toward the front beyond the first front wall to prevent the gap from occurring, and therefore the second front wall 111 of the skeleton 101 and the first front wall 105 of the elevator shaft 102 can be located at approximately the same position in the front-to-back direction, and a floor 113 with a substantially uniform width in the left-to-right direction can be provided.

[0047] In the above-described embodiment, the elevator shaft 102 corresponds to the first structure of the present invention, and the first front wall portion 105 of the elevator shaft 102 corresponds to the front wall portion of the present invention. The skeleton 101 corresponds to the second structure of the present invention. The floor joint covering device 2 corresponds to the floor joint covering means of the present invention, and the wall joint covering device corresponds to the wall joint covering means of the present invention.

[0048] The present invention is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the present invention. For example, the embodiment is configured such that one floor joint cover device 2 and two wall joint cover devices 3 are provided on an elevator shaft and a structure surrounding the elevator shaft, but this is not limited to this, and the configuration may also be such that one floor joint cover device and one wall joint cover device are provided on two adjacent buildings separated by horizontal and vertical joints.

[0049] In the embodiments, the structure of the expandable link body of the wall joint covering device and the number of the expandable link bodies can be changed as appropriate.

[0050] Furthermore, although the embodiment is configured with a gap cover device, the present invention is not limited to this, and it is also possible to configure without the gap cover device. As shown in FIG. 11 , this alternative joint covering device 81 has a floor joint covering device 2 and a wall joint covering device 3 similar to those of the previously described embodiment, but does not have a gap covering device (sliding panel). The structure of this alternative example is arranged in a body 101 and an elevator shaft 102 such that the second side wall 112 of the body 101 extends outward beyond the first front wall 105 of the elevator shaft 102, and the second front wall 111 of the body 101 is located further outward than the first front wall 105. In this alternative body 101 and elevator shaft 102, when the elevator shaft 102 is displaced outward relative to the body 101, the support column 7 moves outward along the second side wall together with the elevator shaft 102, so that the support column 7 is located behind the second front wall 111. Therefore, a sliding panel like that of the previously described embodiment is not required. Furthermore, in the configuration of the alternative example, the floor joint cover device 2 and the wall joint cover device 3 have the same configuration as in the previously described embodiment, and therefore operate in the same manner with relative displacement in the left-right direction and the front-to-back direction. As a result, the configuration of the alternative example can achieve the same effects as in the previously described embodiment. Note that the configuration of the alternative example is the same as in the previously described embodiment except that it does not have a gap cover device, and therefore the same components are designated by the same reference numerals and detailed description thereof will be omitted. [Explanation of symbols]

[0051] 1,81 Joint cover device 2. Floor joint cover device (floor joint cover means) 3 Wall joint cover device (wall joint cover means) 4 Gap cover device 7 Support pillar 11 Floor cover body 12 Mounting frame 13 Support frame 14 Support step edge 16 Main cover part 17 Liaison Department 21 Retaining edge 22 Bearing edge 23 Locking edge 24 Sloped Edge 31 Connecting base 32 Telescopic holding body 33 First telescopic link body 34 Second telescopic link body 38 Link element part 39 Mounting bracket 41 Support rod 42 Wall covering material 43 Cover plate 44 Support cover plate 45 Connecting cover plate 51 Sliding Panel 52,53 Guide member 101 Frame (second structure) 102 Elevator Shaft (First Structure) 105 First front wall (front wall) 106 First side wall part 111 Second front wall section 112 Second side wall part 113 Floor 115 Horizontal joint 116 Vertical joint

Claims

1. a first structure having a front wall portion adjacent to a floor portion constituting a passageway via a horizontal joint, and a first side wall portion extending rearward from a side edge of the front wall portion; a second structure having the floor portion and a second side wall portion adjacent to and facing the first side wall portion via a vertical joint continuous with one end of the horizontal joint in the longitudinal direction; A joint cover device that covers the horizontal joint and the vertical joint, a floor joint cover means having a floor cover body that is disposed across the horizontal joint, one side edge of which is attached to the front wall portion of the first structure so as to be movable in the longitudinal direction of the horizontal joint, and the other side edge of which is placed on the side edge of the floor portion, and that is disposed so as to be movable in the width direction of the horizontal joint relative to the second structure; a support column that is erected at an end of the floor cover body on the second side wall portion side and moves integrally with the floor cover body; a wall joint covering means having a wall covering member connected to the support column and a side edge of the first structure facing the support column, spanning the vertical joint, and being extendable in the width direction of the vertical joint; A joint covering device comprising:

2. a flat slide panel provided on the second side wall portion of the second structure so as to be movable along the second side wall portion; 2. The joint covering device according to claim 1, wherein the front edge of the slide panel is fixed to a support column erected on the floor cover body.

3. A joint cover device as described in claim 1 or claim 2, characterized in that the floor cover body of the floor joint covering means is movable in the width direction of the horizontal joint relative to the second structure but is unable to move in the longitudinal direction of the horizontal joint relative to the second structure.

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