JP6334987B2 - Expansion joint structure - Google Patents

Description

  The present invention relates to an expansion joint structure that covers a gap between two housings.

  As this type of expansion joint structure, one that is movable in two intersecting horizontal directions is known.

  For example, in Patent Document 1, a space is provided between two adjacent ceiling structures with a gap in the first horizontal direction, and is fixed to each facing portion of each ceiling structure facing each other. An edge member extending vertically in the second horizontal direction, a plurality of guide holding means provided on one edge member with a space in the second horizontal direction, and an intermediate portion between one end and the other end in the first horizontal direction A plurality of holder members that are movably held in the first horizontal direction by each guide holding means, and a movable cover body that is fixed to each holder member and covers the gap between the edge members, The guide holding means extends in the first horizontal direction from the one edge member toward the other edge member, and holds the holder member movably in the first horizontal direction, and the guide rail is fixed. The bracket and the bracket Having a spring for supporting on the edge material is disclosed.

Japanese Patent No. 4499518

  In the structure described in Patent Document 1, the first engaging portion 88 and the second engaging portion 89 engaging portion of the holder member are attached to the edge member extending in the second horizontal direction (see FIGS. 5 and 6 of Patent Document 1). ), The holder member is slidably guided. In such a structure, the first engagement portion 88 and the second engagement portion 89 engagement portion have substantially the same width as the holder member, so the width of the engagement portion in the sliding direction (left and right in FIG. 6 of Patent Document 1) It is not possible to ensure a large (direction width). Thus, when the width of the engaging portion in the sliding direction is small, there is a problem that the corner of the engaging portion is caught by the edge material during sliding and cannot be smoothly slid and damaged.

  In view of this, the present invention provides an expansion joint that can be smoothly slid even in the second horizontal direction (the short direction of the holder member in a plan view) as described in Patent Document 1, thereby causing a catch at the time of sliding. It is an object of the present invention to provide an expansion joint structure that can prevent a problem such as breakage.

  The present invention has been made to solve the above-described problems, and is characterized by the following.

The invention according to claim 1 is an expansion joint structure that covers a gap between two casings, and a joint cover that covers the gap, and a plurality of holder members that are arranged at a constant interval in the longitudinal direction of the gap. A first sliding support means provided between the one housing and the holder member, and movably supporting the holder member in a first horizontal direction which is a longitudinal direction of the holder member, and the other housing And a second sliding support means provided between the holder member and the holder member for movably supporting the holder member in a second horizontal direction orthogonal to the first horizontal direction. The moving support means includes a guide rail fixed to the other casing, and a receiving rail that slidably engages with the guide rail, and the receiving rail is fixed across the plurality of holder members. Long material The guide rail, the receiving rails and Ri long material der provided in pairs, wherein the distal portion of the guide rail in contact with the receiving rail, a pair of round bar portion disposed parallel to the horizontal direction to each other And a pair of semicircular holding portions that engage with the pair of round bar portions are formed on the receiving rail, and the holder member is fixed to the receiving rail. A fixing piece for engaging the fixing member is formed to protrude from the receiving rail .

  The invention according to claim 2 is fixed to the first cover material fixed to the holder member and the other casing in addition to the feature of the invention according to claim 1 described above. The second cover material is divided into two.

  According to a third aspect of the present invention, in addition to the features of the second aspect of the present invention, the first cover material covers an edge of the one housing and the gap, and the second cover material is And covering the edge of the other housing.

  According to a fourth aspect of the invention, in addition to the features of the first aspect of the invention described above, the two casings are a ceiling casing and a wall casing, and the second sliding support means is attached to the wall casing side. It is characterized by that.

  According to a fifth aspect of the invention, in addition to the features of the invention according to any of the first to fourth aspects, the first sliding support means can swing in the vertical direction on the one casing. It is characterized by being supported.

  The invention according to claim 1 is as described above, wherein the first sliding support means for supporting the holder member so as to be movable in the first horizontal direction is provided between one housing and the holder member, When the second sliding support means for supporting the member movably in the second horizontal direction is provided between the other casing and the holder member, the two sliding support means are attached to the same casing side. Compared to the above, the movable range in each direction can be increased, and a large displacement due to an earthquake or the like can be dealt with.

  Further, the second sliding support means for supporting the holder member so as to be movable in the second horizontal direction (short direction of the holder member in plan view) includes a guide rail fixed to the other housing, and the guide rail. A receiving rail that is slidably engaged, and the receiving rail is a long member fixed across the plurality of holder members. That is, since the width of the receiving rail that guides the second horizontal sliding is large, the corner of the receiving rail is difficult to be caught by the guide rail when the holder member slides, and the holder member slides smoothly. Problems such as being unable to move and being damaged are less likely to occur.

  The invention according to claim 2 is as described above, and the joint cover is divided into a first cover material fixed to the holder member and a second cover material fixed to the other casing. did. According to such a configuration, when the two casings slide in the second horizontal direction due to an earthquake or the like, the first cover member moves with one casing, and the second cover member moves with the other casing. Will move. Therefore, even when the joint cover is arranged so as to straddle the two casings, the divided joint covers move separately, so that the joint cover can be prevented from colliding with the casing and being damaged.

  In the case of an integrated joint cover as in the prior art, for example, as shown in Japanese Patent Application Laid-Open No. 2007-291620, a gap is provided in the corner portion, and a movable corner cover material is provided in the gap portion. The joint cover was prevented from colliding with the housing and being damaged. However, according to the above-described configuration, the joint cover can be prevented from colliding with the housing and being damaged without providing the movable corner cover material.

  The invention according to claim 3 is as described above, wherein the first cover material covers an edge portion and the gap of the one housing, and the second cover material is an edge portion of the other housing. Covering. According to such a configuration, since the joint cover is divided at the boundary between the other housing and the gap, it is possible to more reliably prevent the joint cover from colliding with the housing and being damaged.

  The invention according to claim 4 is as described above, wherein the two casings are a ceiling casing and a wall casing, and the second sliding support means is attached to the wall casing side. According to such a configuration, since the joint cover can be slid along the wall surface of the wall housing, the joint cover does not collide with the wall surface of the wall housing, and the joint cover collides with the housing and is damaged. Can be prevented.

  Further, the invention according to claim 5 is as described above, and the first sliding support means is supported by the one housing so as to be swingable in the vertical direction. Even when the casing is displaced, the joint cover can be moved following the movement of the casing.

It is (a) whole side view of an expansion joint structure, (b) It is a partially expanded side view. (A) AA sectional view taken on the line shown in FIG. 1, (b) It is a BB sectional view taken on the line shown in FIG. It is a disassembled perspective view of an expansion joint structure. It is explanatory drawing which shows a mode that a housing moves to a 1st horizontal direction, Comprising: (a) The figure which shows the state before a movement, (b) The figure which shows the state which moved the housing in the direction away from each other, (c) A housing It is a figure which shows the state which moved to the direction which mutually approaches. It is explanatory drawing which shows a mode that a housing | casing moves to a 2nd horizontal direction, Comprising: (a) The bottom view which shows the state before a movement, (b) The perspective view which shows the state before a movement, (c) The housing has moved The bottom view which shows a state, (d) The perspective view which shows the state which the housing moved, (e) The bottom view which shows the state which moved the housing in the direction opposite to the moving direction of (c). It is a side view of the expansion joint structure concerning the modification 1. It is a side view of the expansion joint structure concerning the modification 2. It is a side view of the expansion joint structure concerning the modification 3.

  Embodiments of the present invention will be described with reference to the drawings.

  The expansion joint structure according to the present embodiment is fixed between the casings C1 and C2 so as to cover the gap G between the two opposing casings C1 and C2. In this embodiment, as shown in FIG. 1, an expansion joint structure is provided between one casing C1 and the other casing C2 which are all ceiling casings.

  As shown in FIGS. 1 and 3, the expansion joint structure includes a joint cover 10 that covers the gap G, a plurality of holder members 20 that are arranged at regular intervals in the longitudinal direction of the gap G, and one housing. A sliding plate 21 (first sliding support means) provided between C1 and the holder member 20, a rotating member 22 that supports the sliding plate 21 in a swingable manner, and a double coil spring that biases the rotating member 22. 23, a first fixing member 24 and a shaft member 25 for rotatably fixing the rotating member 22 to one housing C1, and a second sliding provided between the other housing C2 and the holder member 20. Support means 30 (guide rail 31 and receiving rail 32) and a second fixing member 33 for fixing holder member 20 to receiving rail 32 are provided.

  The joint cover 10 is a long cover material made of an extruded profile that covers the gap G between the two ceiling casings C1 and C2 from below. The width of the joint cover 10 is set to be slightly larger than the width of the gap G, and is arranged so as to overlap the casings C1 and C2 in a bottom view. For this reason, the joint cover 10 covers the edge of one housing C1 and the edge of the other housing C2.

  As shown in FIGS. 1 and 3, the joint cover 10 according to the present embodiment is divided into a first cover material 11 fixed to the holder member 20 and a second cover material 12 fixed to the guide rail 31. Has been. Since the 1st cover material 11 and the 2nd cover material 12 are mutually provided continuously, when it sees from the bottom, it looks like one cover material.

  The first cover material 11 covers the edge of one housing C1 and the gap G, and is fixed to and supported by the lower surface of the holder member 20. For this reason, it moves integrally with the holder member 20. In addition, the buffer material 13 is attached to the both ends edge of this 1st cover material 11 in the position which faces the 2nd cover material 12 and one housing C1.

  The second cover member 12 covers the edge of the other housing C2, and is fixed to the lower portion of the other housing C2 via the guide rail 31. In addition, the buffer material 13 is attached to the side edge part 12a of this 2nd cover material 12 in the position which faces the other housing C2.

  A gap is provided between the first cover member 11 and the second cover member 12 at a position overlapping the boundary line between the gap G and the other casing C2 when viewed in the vertical direction. It is filled with the buffer material 13. Thus, the 1st cover material 11 and the 2nd cover material are made into the position where the boundary position of the 1st cover material 11 and the 2nd cover material 12 overlaps with the boundary line of the gap | interval G and the other housing C2. The joint cover 10 is structured not to easily collide with the housings C1 and C2 even when they are moved separately.

  The holder member 20 is a member disposed so as to extend horizontally from one housing C1 to the other housing C2 in order to support the joint cover 10 (first cover material 11). As shown in FIG. 1 and the like, the first cover member 11 is fixed to the lower surface of the holder member 20 by screw members 39 and 40. In the longitudinal direction of the first cover material 11, a plurality of holder members 20 are arranged in a river shape at regular intervals. For example, when the joint cover 10 is provided over a long distance, the joint cover 10 can be stably supported by increasing the number of the holder members 20 (in FIG. 3, only one holder member 20 is provided). It is not shown for convenience of explanation, and a plurality of holder members 20 are actually used to support one joint cover 10).

  As shown in FIGS. 1 to 3, the holder member 20 is a substantially U-shaped columnar member including side wall portions 20 a on both sides and a flat portion 20 b that connects the lower ends of the side wall portions 20 a on both sides. Two protruding pieces, a first protruding piece 20c and a second protruding piece 20d, are provided inside the side wall portions 20a on both sides, and a guide groove 20e extending in the horizontal direction is formed by the two protruding pieces. . The guide groove 20e is formed over the entire length in the longitudinal direction of the holder member 20, and is formed so that the slide plate 21 and the second fixing member 33 can be inserted from the end opening.

  The slide plate 21 is attached to one housing C1 via the rotating member 22 and the first fixing member 24, and supports the holder member 20 so as to be movable in the first horizontal direction X which is the longitudinal direction of the holder member 20. It functions as the first sliding support means. As shown in FIG. 3 and the like, the slide plate 21 includes a plate-like insertion plate portion 21a and a rotating member engagement portion 21b provided at an end portion of the insertion plate portion 21a. The insertion plate portion 21 a is a portion that is slidably inserted into the guide groove 20 e of the holder member 20. When the housings C1 and C2 are displaced in the first horizontal direction X, the insertion plate portion 21a slides inside the guide groove 20e, so that the slide plate 21 (in other words, one housing C1) and the holder member 20 are moved. Are mutually displaceable in the first horizontal direction X. Moreover, the rotation member engaging part 21b is a part which engages with the circular-axis part 22b of the rotation member 22 mentioned later so that rotation is possible. Alternatively, the slide plate 21 may be configured by forming the insertion plate portion 21a and the rotation member engaging portion 21b as separate members and combining them.

  The rotating member 22 is for supporting the slide plate 21 so as to be swingable in the vertical direction with respect to one housing C1, and as shown in FIG. 3 and the like, a central plate-like portion 22a and a plate-like member are provided. It is a plate-shaped member provided with the circular-axis part 22b formed in the end of the part 22a, and the circular arc part 22c formed in the other end of the plate-shaped part 22a. The circular shaft portion 22b is a shaft-like portion that rotatably engages the rotating member engaging portion 21b of the slide plate 21 described above. The arc portion 22c is a portion that is rotatably engaged with a shaft member 25 described later.

  The double coil spring 23 is for urging the slide plate 21 and the rotating member 22 to be always closed. As shown in FIG. 3 and the like, the double coil spring 23 has a coil portion 23a formed by spirally winding a metal wire and a middle portion connecting the coil portions 23a on both sides protruding outward in a U-shape. A letter-shaped engagement part 23b and an L-shaped engagement part 23c formed by bending both ends of the metal wire into an L-shape are provided. The double coil spring 23 is attached so that the coil portion 23a is fitted to the circular shaft portion 22b of the rotating member 22, and the slide plate 21 and the rotating member are formed by the U-shaped engaging portion 23b and the L-shaped engaging portion 23c. 22 is held and urged in the closing direction. By attaching the double coil spring 23 in this way, in a natural state, the slide plate 21 and the rotating member 22 are closed (overlapped) around the circular shaft portion 22b.

  The first fixing member 24 is a plate-like member as shown in FIG. 3 and the like, and includes a fixing plate portion 24a that is fixed in contact with the lower surface of one housing C1, and a shaft support portion 24b that holds the shaft member 25. It is equipped with. The first fixing member 24 is fixed to one housing C1 by a screw member 41 that penetrates the fixing plate portion 24a. The arc member 22c of the rotating member 22 described above is rotatably engaged with the shaft member 25 held by the shaft support 24b. Specifically, the circular arc part 22c is engaged with the shaft member 25 by fitting the circular arc part 22c of the rotating member 22 into the notch part 24c provided in the middle of the axial support part 24b.

  The guide rail 31 cooperates with the receiving rail 32 to support the holder member 20 and the first cover member 11 so as to be movable in a second horizontal direction Y orthogonal to the first horizontal direction X. The support means 30 is configured. As shown in FIGS. 1 and 3, the guide rail 31 includes a base 31a fixed in contact with the lower surface of the other housing C2, a support leg 31b extending downward from one end of the base 31a, A protruding arm portion 31d extending in the horizontal direction from the other end of the base portion 31a.

  Among these, the base 31a is fixed to the lower surface of the other housing C2 by the screw member 37. The support leg 31b includes a tip piece 31c whose tip is refracted in an L shape, and the second cover member 12 is fixed to the tip piece 31c by a screw member 36.

  Further, the protruding arm portion 31d protrudes into the gap G, and is provided with a guide rail 31e at the tip portion. As shown in FIG. 1B, the guide rail 31e is configured by forming a round bar portion 31g at the tip ends of two hanging pieces 31f protruding downward. The round bar portions 31g are formed so as to protrude outward from each other, and are formed to be smoothly slid by contacting the receiving rails 32 with curved surfaces. As shown in FIG. 3, the guide rail 31 e is formed over the entire length of the guide rail 31 in the second horizontal direction Y.

  The receiving rail 32 is a long member that slidably engages with the guide rail 31. The receiving rail 32 is a substantially C-shaped member in which a semicircular holding portion 32b is formed from both end edges of the flat base portion 32a, and the guide rail 31e of the guide rail 31 is engaged on the inner side, thereby guiding the guide rail 32. The rail 31 is slidably engaged in the second horizontal direction Y. A second fixing member 33 is fixed to the lower surface of the receiving rail 32 by a screw member 38. In addition, an abutting piece 32 c for engaging the second fixing member 33 is formed on the lower surface of the receiving rail 32.

  The second fixing member 33 is a bridging member for fixing the holder member 20 to the receiving rail 32. As shown in FIG. 3, the second fixing member 33 is a plate-like member having leg portions 33b protruding from the lower surface of the substrate portion 33a. It is. The second fixing member 33 is fixed to the lower surface of the receiving rail 32 described above by a screw member 38. Since the second fixing member 33 is provided corresponding to the holder member 20, the same number of second fixing members 33 as the holder member 20 are fixed to the receiving rail 32. For example, when there are ten holder members 20, ten second fixing members 33 are fixed at a predetermined interval in the longitudinal direction of the receiving rail 32. At this time, the second fixing member 33 can be easily positioned with respect to the receiving rail 32 by abutting the edge of the second fixing member 33 against the abutting piece 32 c of the receiving rail 32.

  As shown in FIG. 2A, the second fixing member 33 fixed to the receiving rail 32 is inserted into the guide groove 20e of the holder member 20, and the first protruding piece 20c of the holder member 20 is caulked. Thus, the first protruding piece 20c and the second protruding piece 20d are sandwiched and fixed.

Next, description will be made of how the expansion joint structure according to the present embodiment acts when displacement occurs between the casings C1 and C2 due to an earthquake, uneven settlement, or the like.
First, a case where displacement occurs in the first horizontal direction X between the casings C1 and C2 will be described with reference to FIG.

  FIG. 4A is a diagram showing a state before displacement occurs in the first horizontal direction X. FIG. As shown in FIG. 4A, the intermediate position of the joint cover 10 and the intermediate position of the gap G are set to be substantially the same in a state where no displacement occurs.

  FIG. 4B is a diagram illustrating a state in which the casings C1 and C2 are moved away from each other. As shown in FIG. 4B, when the casings C1 and C2 move away from each other and the width of the gap G increases, the slide plate 21 moves along the guide groove 20e of the holder member 20 on the other side. It slides in the direction away from the housing C2. Thus, the slide plate 21 and the holder member 20 slide on each other, so that an excessive load is not applied to the holder member 20 and the joint cover 10.

FIG.4 (c) is a figure which shows the state which the housings C1 and C2 moved to the direction which mutually approaches. As shown in FIG. 4 (c), when the housings C 1 and C 2 move in the direction approaching each other and the width of the gap G becomes small, the slide plate 21 moves along the guide groove 20 e of the holder member 20. Slide in a direction approaching the other housing C2. Thus, the slide plate 21 and the holder member 20 slide on each other, so that an excessive load is not applied to the holder member 20 and the joint cover 10.
Next, a case where displacement occurs in the second horizontal direction Y between the casings C1 and C2 will be described with reference to FIG.

  5A and 5B are views showing a state before displacement occurs in the second horizontal direction Y. FIG. As shown in FIGS. 5A and 5B, the first cover member 11 and the second cover member 12 are arranged so as to be continuous in the first horizontal direction X in a state where no displacement occurs. .

  FIGS. 5C and 5D are views showing a state after displacement occurs in the second horizontal direction Y. FIG. As shown in FIGS. 5C and 5D, when the casings C <b> 1 and C <b> 2 move in the second horizontal direction Y, the receiving rail 32 slides along the guide rail 31 e of the guide rail 31. As described above, the receiving rail 32 and the guide rail 31 slide on each other, so that an excessive load is not applied to the holder member 20 and the joint cover 10.

  Thus, when the receiving rail 32 and the guide rail 31 slide relative to each other, the first cover material 11 moves with one housing C1, and the second cover material 12 moves with the other housing C2. Therefore, although the joint cover 10 is arranged so as to straddle the two casings C1 and C2, the divided joint cover 10 moves separately, so that the joint cover 10 collides with the casings C1 and C2. It can be prevented from being damaged. Specifically, referring to FIG. 5C, when the joint cover 10 is not divided, the joint cover 10 collides with the other casing C2 when the joint cover 10 moves together with the one casing C1. In a form, since the part which may collide with the other housing C2 is divided | segmented as the 2nd cover material 12, the joint cover 10 does not collide with the other housing C2.

  Even when displacement occurs in the direction opposite to that in FIGS. 5C and 5D, the holder rail 32 and the guide rail 31 slide relative to each other as shown in FIG. An excessive load is not applied to the member 20 and the joint cover 10.

  Next, the case where the vertical displacement occurs between the casings C1 and C2 will be described. Since the slide plate 21, the rotating member 22, and the first fixing member 24 are rotatably engaged in order, the earthquake Even when the two casings C1 and C2 are displaced in the vertical direction due to such shaking, the rotational member 22 can be rotated to absorb the difference in vertical displacement and the difference in inclination.

  As described above, according to the present embodiment, the slide plate 21 (first sliding support means) that supports the holder member 20 so as to be movable in the first horizontal direction X, the one housing C1 and the holder member 20 are supported. The second sliding support means 30 is provided between the other housing C2 and the holder member 20 so that the holder member 20 is movably supported in the second horizontal direction Y. Compared with the case where the moving support means is attached to the same housing side, the movable range in each direction can be increased, and a large displacement due to an earthquake or the like can be dealt with.

  The second sliding support means 30 that supports the holder member 20 so as to be movable in the second horizontal direction Y (the short direction of the holder member 20 in plan view) is a guide rail 31 that is fixed to the other housing C2. And a receiving rail 32 slidably engaged with the guide rail 31, and the receiving rail 32 is a long material fixed across the plurality of holder members 20. That is, since the width of the receiving rail 32 that guides the sliding in the second horizontal direction Y is large, the corner of the receiving rail 32 is not easily caught by the guide rail 31 when the holder member 20 slides. The problem that the member 20 cannot be smoothly slid and is damaged is less likely to occur.

  Further, the joint cover 10 is divided into a first cover material 11 fixed to the holder member 20 and a second cover material 12 fixed to the other housing C2. According to such a configuration, when the two casings C1 and C2 slide in the second horizontal direction Y due to an earthquake or the like, the first cover material 11 moves together with the one casing C1, and the second cover material. 12 moves with the other housing C2. Therefore, even when the joint cover 10 is arranged so as to straddle the two casings C1 and C2, since the divided joint cover 10 moves separately, the joint cover 10 collides with the casings C1 and C2 and is damaged. Can be prevented.

  The first cover material 11 covers the edge of the one housing C1 and the gap G, and the second cover material 12 covers the edge of the other housing C2. According to such a configuration, since the joint cover 10 is divided at the boundary between the other casing C2 and the gap G, the joint cover 10 can be more reliably prevented from colliding with the casings C1 and C2 and being damaged. be able to.

  Further, since the slide plate 21 is supported by the one casing C1 so as to be swingable in the vertical direction, the movement of the casings C1 and C2 even when the casings C1 and C2 are displaced not only in the horizontal direction but also in the vertical direction. The joint cover 10 can be moved following the above.

  In the above-described embodiment, the two casings C1 and C2 are both ceiling casings, but the present invention is not limited to this. For example, as shown in FIG. 6, two housings C1, C2 may be a ceiling housing C1 and a wall housing C2. In this case, since the joint cover 10 can be slid along the wall surface of the wall housing C2 if the second sliding support means 30 is attached to the wall housing C2 side, the joint cover 10 is attached to the wall housing C2. Therefore, the joint cover 10 can be prevented from colliding with the casing C2 and being damaged.

  Although not described in the above-described embodiment, as shown in FIGS. 7 and 8, an engagement piece that supports the side end portion 12 a of the second cover member 12 at the rear end portion of the guide rail 31. 31h may be provided. In the example shown in FIG.7 and FIG.8, the engagement piece 31h is supporting the side edge part 12a from the downward direction through the shock absorbing material 13. FIG. With such a configuration, rattling is suppressed when the second cover member 12 is attached, so that workability during construction can be improved. Moreover, the bending of the second cover material 12 can also be prevented.

DESCRIPTION OF SYMBOLS 10 Joint cover 11 1st cover material 12 2nd cover material 12a Side edge part 13 Buffer material 20 Holder member 20a Side wall part 20b Flat part 20c 1st protrusion piece 20d 2nd protrusion piece 20e Guide groove 21 Slide plate (1st slide) Dynamic support means)
21a Insertion plate portion 21b Rotating member engaging portion 22 Rotating member 22a Plate portion 22b Circular shaft portion 22c Arc portion 23 Double coil spring 23a Coil portion 23b U-shaped engaging portion 23c L-shaped engaging portion 24 First fixing member 24a Fixed plate part 24b Shaft support part 24c Notch part 25 Shaft member 30 Second sliding support means 31 Guide rail 31a Base part 31b Support leg part 31c Tip piece 31d Projecting arm part 31e Guide rail 31f Drooping piece 31g Round bar part 31h Engagement piece 32 receiving rail 32a base portion 32b holding portion 32c abutting piece 33 second fixing member 33a base plate portion 33b leg portion 36 to 41 screw member C1 one housing C2 other housing G gap X first horizontal direction Y second horizontal direction

Claims (5)

An expansion joint structure that covers the gap between two housings,
A joint cover covering the gap;
A plurality of holder members arranged at regular intervals in the longitudinal direction of the gap;
First sliding support means provided between one housing and the holder member, and supporting the holder member movably in a first horizontal direction which is a longitudinal direction of the holder member;
Second sliding support means provided between the other housing and the holder member, and supporting the holder member so as to be movable in a second horizontal direction perpendicular to the first horizontal direction;
With
The second sliding support means includes a guide rail fixed to the other housing, and a receiving rail slidably engaged with the guide rail,
The receiving rail is a long material fixed across the plurality of holder members,
The guide rails, Ri long material der provided in the receiving rail pair,
A pair of round bar portions arranged in parallel to each other in the horizontal direction are formed at the front end portion of the guide rail contacting the receiving rail, and the receiving rail engages with the pair of round bar portions. A pair of semicircular holding portions are formed,
A fixing member for fixing the holder member to the receiving rail is provided, and an abutting piece for abutting and positioning the fixing member is formed on the receiving rail. , Expansion joint structure.   The expansion joint structure according to claim 1, wherein the joint cover is divided into a first cover material fixed to the holder member and a second cover material fixed to the other casing. The first cover material covers an edge of the one casing and the gap,
The expansion joint structure according to claim 2, wherein the second cover material covers an edge portion of the other casing.   2. The expansion joint structure according to claim 1, wherein the two casings are a ceiling casing and a wall casing, and the second sliding support means is attached to the wall casing side.   The expansion joint structure according to any one of claims 1 to 4, wherein the first sliding support means is supported by the one housing so as to be swingable in a vertical direction.

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