JP2017198056A - Stretchable joint apparatus and ceiling stretchable joint apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stretchable joint apparatus in which, in a case where buildings are brought into a close state or separated state by an earthquake or the like, when a joint plate is displaced in response thereto, an opening part which cannot be covered by the joint plate may be reduced.SOLUTION: A stretchable joint apparatus comprises: a support bar 17 whose both end parts in a longitudinal direction are supported on each rail 13 in a slidable manner and which rotate in a following manner to relative displacement in a close direction or separating direction of opposing parts 11, 12; first stretchable link means 50 which rotatably supports the support bar 17 on a center between a pair of rails 13 and stretches in the close direction or separating direction of the opposing parts 11, 12; and second stretchable link means 51 whose both end parts are rotatably supported at the side of the opposing parts 11, 12, which rotatably supports a plurality of joint plate supporting members 24 with a predetermined interval in the close direction or separating direction of the opposing parts 11, 12, and displaces the plurality of joint plate supporting members 24 in a following manner to relative displacement accompanying closing or separation of the opposing parts 11, 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an expansion joint device and a ceiling expansion joint device capable of allowing relative displacement of each housing due to an earthquake or the like in a state where a gap between two adjacent housings of a building is closed.

  The expansion joint device for floors described in Patent Document 1 includes a pair of rails attached to the floor frame on the joint part side of the right and left buildings built via the joint part, and both ends slidingly move on the pair of rails. At least two support bars which are supported in an inclined manner, a plurality of joint plate support bars supported at predetermined intervals by the at least two support bars, and the plurality of support bars. And a plurality of joint plates each attached to the joint plate support bar.

JP 2002-38612 A

  In the expansion joint device for floors described in Patent Document 1, the rotation angle of the support bar accompanying the relative displacement of each housing is large, so that the expansion joint device and the housing of the building are accompanied by the proximity or separation of the building due to an earthquake or the like. There is a case where a gap is formed between the two and it is dangerous.

  An object of the present invention is to provide an expansion joint device and a ceiling device that can reduce an opening that cannot be completely covered by a joint plate when the joint plate is displaced in response to the proximity or separation of a building due to an earthquake or the like. It is to provide an expansion joint device.

The present invention comprises a pair of rails arranged to extend in parallel along each of the opposing portions at the opposing portions of the two buildings facing each other with a gap therebetween,
A support bar that is slidably supported at both ends in the longitudinal direction on each rail, and that rotates following the relative displacement in the direction of approaching and separating from each facing portion;
A plurality of joint plates disposed between the bases;
A plurality of joint plate support members for supporting the joint plates;
A plurality of rail members that are rotatably attached to the support bar at intervals, and that support the joint plate support member in a slidable manner;
Both end portions are rotatably supported on the facing portions, and the support bar is rotatably supported in the center between the pair of rails. The facing portions are moved toward and away from the facing portions. First telescopic link means that expands and contracts in the direction of approaching and separating from the part;
Both end portions are rotatably supported on the respective facing portions, and the plurality of joint plate support members are rotatably supported at predetermined intervals in a direction approaching and separating from the respective facing portions, And a second expansion / contraction link means for displacing the joint plate support members following the relative displacement accompanying the proximity and separation of the expansion joint device.

According to the present invention, each joint plate supporting member is provided with a height adjusting member having a certain height and aligning the height of the second telescopic link means placed on the upper surface. It is characterized by.

The present invention also includes a pair of rails arranged to extend in parallel along each of the opposing portions on the opposing portions of the two buildings facing each other with a gap therebetween,
A plurality of support bars that are slidably supported at both ends in the longitudinal direction on each rail, and that rotate following the relative displacement in the direction of approaching and separating from each facing portion,
A plurality of joint plates covering between the opposing portions;
Both end portions are rotatably supported on the respective facing portions, and are pivotally supported on the support bar at the center between the pair of rails. First telescopic link means that expands and contracts in the direction of approaching and separating from the part;
A slide support member having a slide gripping portion provided with an arc-shaped recess that is supported by the first telescopic link means so as to be rotatable at a predetermined interval and whose lower portion is open;
A joint plate support member for supporting the joint plate, having an arcuate convex portion that is slidably and rotatably held in the arc-shaped concave portion of the slide support member;
It is an expansion joint apparatus for ceilings characterized by having.

  According to the present invention, the support bar rotates at the central portion between the pair of rails on which the first telescopic link means is supported in accordance with the displacement between the opposing portions where the opposing portions approach and separate from each other. The second telescopic link means displaces the joint plate support member at a predetermined interval following the relative displacement between the opposing portions, and the joint plates supported by the joint plate support member are a pair of joint plates. Since the joint plate on both sides of the joint plate on one facing part and the joint plate on the other facing part side is displaced in the opposite direction, with the center part between the rails as a boundary, when the building approaches or separates due to an earthquake, etc. Moreover, when the joint plate is displaced in accordance with this, the opening that cannot be completely covered by the joint plate can be reduced.

It is a vertical sectional view of the expansion joint device for floors of the first embodiment of the present invention. It is an expanded sectional view near one opposing part. It is an expanded sectional view near the other facing part. It is a top view of a joint plate support member and the 2nd expansion-contraction link means. It is the figure which showed typically the rail member, a support bar, and the 1st expansion-contraction link means when each opposing part which mutually opposes two adjacent housings shifted | deviated to the front-back direction. It is the figure which showed typically the joint plate support member and the 2nd expansion-contraction link means when each opposing part which mutually opposes two adjacent housings shifted | deviated to the front-back direction. It is the figure which showed typically the rail member, a support bar, and the 1st expansion-contraction link means when each opposing part which two adjacent housings mutually oppose is shifted | deviated to the direction which approaches / separates. It is the figure which showed typically the joint plate support member and the 2nd expansion-contraction link means when each opposing part which mutually opposing 2 adjacent housings shifted | deviated to the direction which approaches / separates. It is a front view for demonstrating the state from which the level of the expansion joint apparatus for floors shifted | deviated. It is a front view for demonstrating the state from which the level of the expansion joint apparatus for ceilings of 2nd Embodiment of this invention shifted | deviated. It is detail drawing of a slide support member and a joint plate support member. It is an expanded sectional view of the opposing part vicinity of the expansion joint apparatus for floors concerning 3rd Embodiment of this invention. It is a perspective view of a hinge. It is an expanded sectional view of the opposing part vicinity of the state from which the level of the opposing part of the expansion joint apparatus for floors differed. It is an expanded sectional view of the opposing part vicinity of the state from which the level of the opposing part of the expansion joint apparatus for floors differed. It is sectional drawing for showing the components structure of the joint plate support member.

  FIG. 1 is a vertical sectional view of a floor expansion joint device 10 according to the first embodiment of the present invention, FIG. 2 is an enlarged sectional view in the vicinity of one opposing portion 11, and FIG. It is an expanded sectional view of the vicinity. FIG. 4 is a plan view of the joint plate support member 24 and the second telescopic link means 51. The floor expansion joint device 10 is fixed to the facing portions 11 and 12 of two adjacent housings facing each other, and is parallel to the horizontal direction along the extending direction (direction perpendicular to the paper surface of FIG. 1). A pair of rails 13 extending in parallel to each other, and both end portions 15 and 16 in the longitudinal direction are movably supported by the rails 13, and are displaced following the relative displacement of the facing portions 11 and 12 in the approaching and separating directions. A plurality of support bars 17, a rail member 18 having a U-shaped rail portion 21 that is pivotally connected to the support bars 17 at a predetermined interval and opened at the top, and screws for the joint plates 19. And is slidably fitted into the rail portion 21 of the rail member 18, and the joint plate support member 24 that supports the joint plate 19, and the joint plate support member 24 that is fixed to and close to and away from the joint plate support member 24. And a joint plate 19 extending in the width direction of the other side beyond the upper joint plate support member 24 adjacent to parallel one widthwise side.

  The support bar 17 is realized by including a rotating member 26 formed of a square pipe that is a hollow member. On the lower surfaces of one end portion in the longitudinal direction and the other end portion in the longitudinal direction of the rotating member 26, sliding members 27 and 28 made of square pipes are pin bolt 31, round pipe 92, washers 32 and 33, and nut 34. It is connected so as to be rotatable around the axis 31. The sliding members 27 and 28 are connected to the lower wall 37 supported by the bottom 35 of the rail 13, the upper wall 38 sandwiched between the lower washer 32 and the bolts, and the upper wall 38 and the lower wall 37 at right angles. And a pair of side walls 40 guided by the parting part 39 of the rail 13.

  A rail member 18 that slidably supports the joint plate support member 24 is connected to the upper surface of each support bar 17 in the center in the width direction. The rail portion 21 of the rail member 18 has a U-shaped cross section with an open top, and the rail portion 21 is rotatably supported by the support bar 17 by a pin 77 disposed in the center of the rail portion 21. The

  The joint plate support member 24 is formed at a joint plate receiving portion 42 that receives the joint plate 19 by screwing the upper portion thereof, a rising portion 43 continuous to the joint plate receiving portion 42, and a lower portion of the rising portion 43. The slide part 44 is slidably movable on the rail part 21. A small piece 45 having a constant height is disposed on the slide portion 44, and the second telescopic link means 51 is placed on the upper surface of the small piece 45. By bolting the second telescopic link means 51 to the small piece 45, the second telescopic link means 51 can be easily arranged at a certain height.

  The joint plate 19 has a substantially L-shaped cross section, and the bent portion 22 of the joint plate 19 abuts against the rising portion 43 of the joint plate support member 24 and is positioned on one side in the width direction. It extends to the other side in the width direction beyond the adjacent joint plate receiving portion 42. The two joint plates 19 adjacent to each other cover the gap between the joint plate receiving portions 42 in a partially overlapped state.

  A pantograph-shaped first telescopic link means 50 is disposed below the support bar 17. One end of the first telescopic link means 50 is rotatably pinned to a Z-shaped bracket 52 welded to the bottom 35 of one rail 13. The other end of the first telescopic link means 50 is pivotally pinned to a Z-shaped bracket 53 welded to the bottom 35 of the other rail 13. The fulcrum 55, which is located at the center in the longitudinal direction of the first telescopic link means 50 and intersects the two links constituting the first telescopic link means 50 in an X-shape, is rotatable to the center in the longitudinal direction of the support bar 17. Pin-coupled.

  The support bar 17 is centered on a fulcrum 55 in the longitudinal center where the sliding members 27 and 28 slide in the rail 13 and the first telescopic link means 50 is pin-coupled as the building approaches or separates. Rotate.

  The pantograph-shaped second telescopic link means 51 is disposed below the joint plate 19. One end of the second telescopic link means 51 is pivotally pinned to one rail 13 by a screw-shaped or welded L-shaped bracket 56. The other end of the second telescopic link means 51 is rotatably pinned to an L-shaped bracket 57 that is screwed to the other rail 13. A plurality of fulcrums 58 where the two links of the second telescopic link means 51 excluding one end and the other end intersect in an X shape are pin-coupled to the joint plate support member 24 so as to be rotatable.

  The second telescopic link means 51 can expand and contract the plurality of joint plate support members 24 by following the relative displacement in the approaching and separating directions of the facing portions 11 and 12, and is disposed in the facing portion 11. One of the rails 13 is made of a steel material having a substantially L-shaped cross section, and has a base 61 fixed by a bolt to a vertical wall surface 60 facing the gap 59 of the facing portion 11. The base portion 61 includes a bottom portion 62 that is bent at a right angle to the lower end portion of the base portion 61 and a rising portion 63 that rises from the bottom portion 62. A rail 13 is disposed inside the base 61. The rail 13 has a rising portion 64 that rises vertically, and includes a bottom portion 35 and a parting portion 39 that rises from the end portion of the bottom portion 35 at the lower end of the rising portion 64, and includes a U-shaped opening portion 90 that opens upward. . A joint plate receiving portion 41 that projects in the horizontal direction and receives the joint plate 19 is disposed at the upper end of the rising portion 64.

  The rail 13 is provided with a retaining pin 67 that is screwed to the rising portion 64 of the rail 13 and penetrates the through hole 68 of the base portion 61. The through hole 68 of the base 61 is, for example, an elongated hole that is elongated in the vertical direction.

  The other rail 13 fixed to the other facing portion 12 is made of a steel material having a substantially L-shaped cross section. The facing portion 12 is provided with a base portion 61 that is fixed to a vertical wall surface 69 facing the gap 59 by a bolt. The base portion 61 includes a bottom portion 62 that is bent at a right angle to the lower end portion of the base portion 61 and a rising portion 63 that rises from the bottom portion 62. A rail 13 is disposed inside the base 61. The rail 13 has a rising portion 64 that rises vertically, and is formed of a bottom portion 35 and a parting portion 39 that rises from the tip of the bottom portion 35 at the lower end of the rising portion 64, and includes an opening 90 that opens upward. A joint plate receiving portion 41 that projects in the horizontal direction and receives the joint plate 19 is disposed at the upper end of the rising portion 64. The rail 13 is provided with a retaining pin 67 that is screwed to the rising portion 64 of the rail 13 and penetrates the through hole 68 of the base portion 61. The through hole 68 of the base 61 is a long and narrow hole in the vertical direction. Such other rail 13 extends in parallel with one rail 13 along the wall surface 69 of the facing portion 12 in the horizontal direction perpendicular to the paper surface of FIG.

  FIG. 5 shows the rail member 18, the support bar 17, and the first support member 11 when the opposing portions 11, 12 facing each other of two adjacent housings are displaced in the front-rear direction with a constant interval between the opposing portions 11, 12. It is the figure which showed 1 expansion-contraction link means 50 typically. FIG. 5A shows a state in which there is no displacement between the facing portions 11 and 12, and FIG. 5B shows a case where one facing portion 11 is displaced forward with respect to the other facing portion 12. FIG. 5 (c) shows a case where one facing portion 11 is displaced backward with respect to the other facing portion 12.

  FIG. 6 shows the joint plate support member 24 and the second expansion / contraction when the facing portions 11 and 12 facing each other of the two adjacent housings are displaced in the front-rear direction with a constant interval between the facing portions 11 and 12. It is the figure which showed the link means 51 typically. 6A shows a state in which there is no deviation between the facing portions 11 and 12, and FIG. 6B shows a case where one facing portion 11 is displaced forward with respect to the other facing portion 12. FIG. 6C shows a case where one facing portion 11 is displaced backward with respect to the other facing portion 12.

  The distance between the opposing portions 11 and 12 is constant, and the relative positions of the two sliding members 27 and 28 that slide the rail 13 are constant before and after the opposing portions 11 and 12 are displaced, The position of the support bar 17 is also constant. One facing portion 11 (rail 13) moves back and forth with respect to the sliding members 27 and 28. The first telescopic link means 50 rotates around the fulcrum 55 at the center of the support bar 17 on which the first telescopic link means 50 is supported according to the direction and size of the shift between the facing portions 11 and 12. The joint plate support member 24 pin-bonded to the second telescopic link means 51 includes the joint plate support member 24 on the one opposing portion 11 side with respect to the fulcrum 55 and the other opposing portion 12 side with respect to the fulcrum 55. The joint plate support member 24 located in the position moves in the opposite direction by a distance proportional to the distance from the fulcrum 55 to each joint plate support member 24.

  In this way, since the moving distance of each joint plate support member 24 can be shortened, the joint plate 19 attached to the moved joint plate support member 24 comes into contact with the wall or the like, or attached to the joint plate support member 24. It is possible to prevent a large opening from occurring in the side portion of the joint plate 19.

  FIG. 7 shows the rail member 18, the support bar 17, and the first telescopic link when the opposing portions 11, 12 facing each other of two adjacent housings are shifted in the approaching / separating direction without shifting back and forth. It is the figure which showed the means 50 typically. FIG. 8 shows the joint plate support member 24 and the second telescopic link means 51 when the facing portions 11 and 12 of the two adjacent housings facing each other are displaced in the approaching / separating direction without being displaced forward and backward. FIG.

  Since there is no front-rear displacement between the opposing portions 11, 12, the orientation of the first telescopic link means 50 does not change before and after the opposing portions 11, 12 are displaced, and the opposing portions 11, 12 are in proximity / separation. Direction. When the distance between the facing portions 11 and 12 is increased, the support bar 17 rotates in the direction of approaching / separating about the fulcrum 55, and when the distance between the facing portions 11 and 12 is shortened, the support bar 17 is , With the fulcrum 55 as the center, it rotates in the front-rear direction orthogonal to the opposing direction of the opposing portions 11 and 12.

  When the support bar 17 is rotated in the direction of approaching / separating, the rail member 18 on the one facing portion 11 side and the rail member 18 on the other facing portion 12 side are reversed in the front-rear direction with the fulcrum 55 as the center. Move to.

  However, each joint plate support member 24 is restricted by the second telescopic link means 51 and moves along the direction in which the facing portions 11 and 12 approach / separate, so the joint attached to the moved joint plate support member 24. It is possible to prevent the plate 19 from coming into contact with a wall or the like, or a large opening from being formed on the side portion of the joint plate 19 attached to the joint plate support member 24.

  As shown in FIG. 2, a contact body 87 is screwed to the outer surface of the rising portion 64 of one rail 13 fixed to the facing portion 11, and 2 on the inner surface of the rising portion 63 of the base portion 61. Two abutting bodies 88 are screwed. The contact body 87 and the contact body 88 are disposed such that the end surfaces of the contact body 88 are in contact with both end surfaces of the contact body 87. A contact body 89 is screwed to the inner surface of the bottom 62 of the base 61. The contact bodies 87, 88, and 89 are, for example, a semi-circular kamaboko shape. The contact body 87 disposed on the outer surface of the rising portion 64 of the rail 13 is provided with a gap between the inner surface of the rising portion 63 of the base portion 61 and the inner surface of the rising portion 63 of the base portion 61. The contact body 88 is provided with a gap between the rail 13 and the outer surface of the rising portion 64. A contact body 89 disposed on the inner surface of the bottom 62 of the base 61 abuts on the bottom 35 of the rail 13.

  As shown in FIG. 3, a contact body 87 is screwed to the outer surface of the rising portion 64 of the other rail 13 fixed to the facing portion 12, and 2 on the inner surface of the rising portion 63 of the base portion 61. Two abutting bodies 88 are screwed. The contact body 87 and the contact body 88 are disposed such that the end surfaces of the contact body 88 are in contact with both end surfaces of the contact body 87. A contact body 89 is screwed to the inner surface of the bottom 62 of the base 61. The contact bodies 87, 88, and 89 are, for example, a semi-circular kamaboko shape. The contact body 87 disposed on the outer surface of the rising portion 64 of the rail 13 is provided with a gap between the inner surface of the rising portion 63 of the base portion 61 and the inner surface of the rising portion 63 of the base portion 61. The contact body 88 is provided with a gap between the rail 13 and the outer surface of the rising portion 64. A contact body 89 disposed on the inner surface of the bottom 62 of the base 61 abuts on the bottom 35 of the rail 13.

  FIG. 9 shows a state in which the level on one side of the floor expansion joint device 10 has risen relative to the level on the other side due to an earthquake. 9A shows a state in which there is no deviation between the opposing portions 11 and 12, and FIG. 9B shows a case where one opposing portion 11 is displaced upward with respect to the other opposing portion 12. FIG. 9C shows a case where one facing portion 11 is shifted downward with respect to the other facing portion 12.

  In the rail 13 on one side, the parting portion 39 of the rail 13 is in contact with the vertical wall portion 91 of the base portion 61 in a state where the contact body 89 disposed on the inner surface of the bottom portion 62 of the base portion 61 is in contact with the bottom portion 35 of the rail 13. Abut. The contact body 89 has an arc-shaped cross section along the longitudinal direction of the rail 13, and can make line contact with the outer surface of the bottom portion 35 of the rail 13 even when the rail 13 is inclined.

  The contact body 87 disposed on the outer surface of the rising portion 64 of the rail 13 and the contact body 88 disposed on the inner surface of the rising portion 63 of the base portion 61 are in contact with both end surfaces of the contact body 87. The end surface of the body 88 abuts to restrict the movement of the rail 13 in the longitudinal direction. The abutting body 87 disposed on the rail 13 is separated from the rising portion 63 of the opposing base 61, and the abutting body 88 disposed on the base 61 is separated from the rising portion 64 of the rail 13.

  The retaining pin 67 screwed to the rising portion 64 of the rail 13 is maintained in a state of being inserted into the through hole 68 of the base portion 61.

  In the rail 13 on the other side, the parting portion 39 of the rail 13 is in contact with the vertical wall portion 91 of the base portion 61 in a state where the contact body 89 disposed on the inner surface of the bottom portion 62 of the base portion 61 is in contact with the bottom portion 35 of the rail 13. Abut. The contact body 87 disposed on the outer surface of the rising portion 64 of the rail 13 and the contact body 88 disposed on the inner surface of the rising portion 63 of the base portion 61 are respectively contacted with both end surfaces of the contact body 87. The abutment body 87 disposed on the outer surface of the rising portion 64 of the rail 13 maintains the state where the end surface of the contact body 88 abuts and the movement of the rail 13 in the longitudinal direction is restricted, and the rising portion of the base portion 61 The abutting body 88 that abuts on the inner surface 63 or is disposed on the inner surface of the rising portion 63 of the base 61 abuts on the outer surface of the rising portion 64 of the rail 13. The retaining pin 67 screwed to the rising portion 64 of the rail 13 is maintained in a state of being inserted into the through hole 68 of the base portion 61.

  As described above, in the state where the end surfaces of the contact bodies 88 are in contact with the both end surfaces of the contact body 87 and the movement of the rail 13 in the longitudinal direction is restricted, the parting portion of the rail 13 on the other side whose level is lowered. 39 contacts the vertical wall 91 of the base 61. Further, the contact body 87 disposed on the outer surface of the rising portion 64 of the rail 13 contacts the inner surface of the rising portion 63 of the base portion 61, or the contact body 88 disposed on the inner surface of the rising portion 63 of the base portion 61. Then, the movement of the floor expansion joint device 10 in the longitudinal direction is restricted by coming into contact with the outer surface of the rising portion 64 of the rail 13. The contact bodies 87 and 88 have an arc-shaped cross section along the longitudinal direction of the rail 13, and the contact bodies 87 and 88 are the rising portions 64 of the rail 13 even when the rail 13 is inclined. The abutment body 89 can be in line contact with the outer surface of the bottom portion 35 of the rail 13.

  The vertical movement of the floor expansion joint device 10 is regulated by maintaining the state in which the retaining pin 67 screwed to the rising portion 64 of the rail 13 is inserted into the through hole 68 of the base 61. .

  FIG. 10 is a front view for explaining a state in which the level of the expansion joint device 20 for ceiling according to the second embodiment of the present invention is shifted. FIG. 10A shows the ceiling expansion joint device 20 when each of the facing portions 71 and 72 is in a normal position. FIG. 10B shows that one facing portion 71 is above the other facing portion 72. FIG. 10C shows a case where one facing portion 71 is shifted downward with respect to the other facing portion 72. FIG. 11 is a detailed view of the slide support member 74 and the joint plate support member 84. The description overlapping with the description of the first embodiment is omitted, and the same reference numerals are used.

  The ceiling expansion joint device 20 is fixed to the facing portions 71 and 72 facing each other of the casing of the ceiling portion, and a pair of rails 13 extending in parallel along the extending direction (direction perpendicular to the paper surface of FIG. 10). In addition, both end portions in the longitudinal direction are movably supported by the rails 13 and have a plurality of support bars 17 that follow the relative displacements in the directions in which the opposing portions 71 and 72 approach and separate from each other. A pantograph-shaped first telescopic link means 50 is disposed on the lower surface of the support bar 17. The fulcrum 93 of the first telescopic link means 50 is provided with a slide support member 74 having a slide gripping portion 82 which is pin-coupled so as to be rotatable at a predetermined interval and has a concave portion 81 having an arcuate cross section opened at the bottom. Established. Furthermore, the arc-shaped concave portion 81 of the slide support member 74 has an arc-shaped convex portion 83 that is gripped so as to be slidable and rotatable, and a joint plate support member 84 that supports each joint plate 19 by screwing. Is disposed. The joint plate 19 extends below the joint plate support member 84 adjacent to one side in the width direction of the joint plate 19 and extends to one side in the width direction of the joint plate 19 and contacts the joint plate 19 adjacent to one side in the width direction. Touch. A positioning metal fitting 96 of the joint plate 19 is attached to the upper portion of the slide support member 74, and the joint plate 19 has an end of the bent portion 22 abutting against the positioning metal fitting 96, and a base end portion of the bent portion 22. Is screwed to the joint plate support member 84 in a state of being in contact with the joint plate support member 84. Thereby, the joint plate 19 is easily screwed in the positioned state.

  The slide support member 74 has a slide gripping portion 82 having an arcuate recess 81, and the joint plate support member 84 is arcuately slidably held by the arcuate recess 81 of the slide support member 74. Therefore, the joint plate 19 can be disposed with a simple configuration. An earthquake has occurred. Even when the levels of the facing portions 71 and 72 are different, the arc-shaped convex portion 83 of the joint plate support member 84 fitted into the arc-shaped concave portion 81 of the slide support member 74 is rotated inside the arc-shaped concave portion 81. Since it moves, the joint plate 19 can be easily made to follow the different level of each opposing part 71 and 72. FIG.

  As shown in FIGS. 5 to 8, a vertical wall 94 is provided in front of and behind the floor expansion joint device 10, and a ceiling expansion joint device 20 is used as the expansion joint device for the vertical wall 94. Is possible. The expansion joint device 95 for vertical walls is disposed, for example, on the inner surface side of the vertical wall 94 and the outer surface side of the vertical wall 94 and is supported by the facing portions 11 and 12. By arranging the expansion joint device 20 for the ceiling on the ceiling side of the expansion joint device 10 for the floor and the expansion joint device 95 for the vertical wall on the vertical wall 94, according to the displacement of the facing portions 11, 12, The floor, ceiling, and vertical wall between the opposing portions 11 and 12 can be expanded and contracted.

  Thus, the floor expansion joint device 10 is disposed so as to extend in parallel along the facing portions 11 and 12 to the facing portions 11 and 12 of the two buildings facing each other with a gap 59 therebetween. A pair of rails 13 and a support bar 17 that is supported by the rails 13 so that both end portions in the longitudinal direction are slidable, and that rotates following the relative displacement of the facing portions 11 and 12 in the approaching and separating directions. And a plurality of joint plates 19 disposed between the bases 61, a plurality of joint plate support members 24 for supporting the joint plates 19, and a support bar 17 that are rotatably attached to the support bar 17. A plurality of rail members 18 that slidably support the joint plate support member 24 and both end portions are rotatably supported on the facing portions 11 and 12 side, and a support bar 17 at the center between the pair of rails 13. A first telescopic link means 50 that is rotatably supported and expands and contracts in the direction in which the opposing portions 11 and 12 approach and separate from each other as the opposing portions 11 and 12 approach and separate from each other. 11 and 12 are rotatably supported, and a plurality of joint plate support members 24 are rotatably supported at predetermined intervals in a direction in which the opposing portions 11 and 12 approach and separate from each other, and the opposing portions 11 and 12 are supported. And a second telescopic link means 51 for displacing the plurality of joint plate support members 24 following the relative displacement accompanying the approach and separation.

  FIG. 12 is an enlarged cross-sectional view of the vicinity of the facing portion 12 of the floor expansion joint device 110 according to the third embodiment of the present invention. FIG. 13 is a perspective view of the hinge 120. In the present embodiment, a hinge 120 having a rotation axis L in the extending direction is disposed between the rising portion 64 of the rail 13 and the rising portion 63 of the base portion 61. In the present embodiment, for example, three hinges 120 are installed on the same rotation axis L in each of the facing portions 11 and 12.

  The hinge 120 includes a pair of hinge pieces 121 and 122 and a hinge pin 123 that rotatably supports the hinge pieces 121 and 122. The hinge piece 121 includes a flat mounting seat 124 and a cylindrical rotation base 126 that is connected to the mounting seat 124 and supported by the hinge pin 123. The hinge piece 122 includes a flat mounting seat 125. And cylindrical rotation bases 127 a and 127 b that are connected to the mounting seat 125 and supported by the hinge pins 123.

  The rotation base 127a is provided at the center of the mounting seat 125 in the length direction (rotation axis L direction), and the rotation base 127b is provided at both ends of the mounting seat 125 in the length direction. The rotating base 126 is disposed adjacent to each other between the rotating bases 127a and 127b. The mounting seat 124 of the hinge piece 121 and the mounting seat 125 of the hinge piece 122 are rectangular with the same shape. An annular sleeve 128 is provided between the rotation base 126 and the rotation base 127a, and between the rotation base 126 and the rotation base 127b. Are provided with holes 129 for bolting.

  Of the hinge pieces 121, 122, the mounting seat 124 of one hinge piece 121 is bolted and welded to the rising portion 64 of the rail 13, and the mounting seat 125 of the other hinge piece 122 is fixed to the rising portion 63 of the base portion 61. It is bolted to a horizontal plane receiving portion 111 provided at the upper end.

  The mounting seats 124 and 125 are configured so that the rotation bases 126, 127a, and 127b are sandwiched between the rising part 64 of the rail 13 and the rising part 63 of the base 61, and the outer peripheral surfaces of the rotation bases 126, 127a, and 127b. The bolt 132 is bolted to the receiving portion 111 in a state of contacting the rising portion 64 and the rising portion 63.

  FIG. 14 is an enlarged cross-sectional view of the vicinity of the facing portion 12 in a state in which, for example, an earthquake occurs and the level of the facing portion 11 of the floor expansion joint device 110 is relatively higher than the level of the facing portion 12. . FIG. 15 is an enlarged cross-sectional view of the vicinity of the facing portion 12 in a state where the level of the facing portion 11 is relatively lowered with respect to the level of the facing portion 12.

  Even if an earthquake occurs and the level of one side of the expansion joint device for floor 110 rises relative to the level of the other side, and the rail 13 is tilted with respect to the base 61, the hinge constituting the hinge 120 The expansion base device 126 for the floor hanging on the hinge 120 is maintained with the rotating base portions 126, 127a, 127b of the pieces 121, 122 in contact with the rising portion 64 of the rail 13 and the rising portion 63 of the base portion 61. Among the 110 loads, a load in a direction perpendicular to the rising portion 64 of the rail 13 can be received by the cylindrical rotation bases 126, 127a, and 127b, and a load in a direction parallel to the rising portion 64 of the rail 13 is It can be received by a mounting seat 124 bolted and welded to the rising portion 64 of the rail 13.

  In this way, the load applied to the hinge 120 can be received by the rotation bases 126, 127a, 127b having high strength and the mounting seat 124 bolted and welded to the rising part 64. Since the load applied to the mounting seat 125 that is bolted to the receiving portion 111 can be reduced, the mounting bolt that fixes the mounting seat 125 to the receiving portion 111 can be prevented from breaking and the hinge 120 from falling off. it can.

  Since the mounting seat 124 of the hinge piece 121 can be welded to the rail 13 in advance, the mounting accuracy of the mounting seat 124 attached to the rail 13 can be improved, and the hinge piece 122 is welded to the rail 13 by the mounting seat 124. It can be easily bolted in a state where it is applied. When the mounting seat 124 is welded to the rising portion 64, the mounting seat 124 can be easily positioned by screwing and positioning the bolt 130.

  A stopper 133 is provided below the rising portion 63 of the base 61 so that the lower end of the rising portion 64 of the rail 13 abuts when the rail 13 rotates about the rotation axis L of the hinge 120. The stopper 133 is made of resin, for example, and is screwed to the rising portion 63.

  To prevent the rail 13 from coming into contact with the base portion 61 when the level of the facing portion 11 of the floor expansion joint device 110 rises relative to the level of the facing portion 12, the vertical wall portion 91 of the base portion 61. Is inclined in a direction facing the gap 59.

  When the levels of the facing portions 11 and 12 are different, the rail 13 rotates around the rotation axis L of the hinge 120 but does not move relative to the base 61 of the facing portions 11 and 12. The rail 13 may not be provided with a retaining pin for preventing the rail 13 from falling off the base 61.

  FIG. 16 is a cross-sectional view for illustrating a component configuration of the joint plate support member 144. The joint plate support member 144 is formed at the joint plate receiving portion 42 that receives the joint plate 19 at the upper portion, the rising portion 43 that continues to the joint plate receiving portion 42, and the lower portion of the rising portion 43, and the rail portion 21 of the rail member 18. A main body part 145 integrally having a slide part 44 that can slide and a positioning member 147 that is screwed to the rising part 43 of the main body part 145 to position the joint plate 19 and the second telescopic link means 51. Prepare.

  The positioning member 147 includes a vertical wall 151 disposed in parallel with the rising portion 43 and a mounting table 158 having a predetermined height on which the second telescopic link means 51 is mounted. The rising portion 43 and the vertical wall 151 constitute a groove portion 157 having a U-shaped cross section opened upward in the vertical direction.

  The bent portion 22 of the joint plate 19 extending in the vertical direction is inserted into the groove portion 157, and the bent portion 22 is positioned in a state where the bent portion 22 is close to the bottom portion 161 of the groove portion 157. The lower surface 163 of the main body portion 23 of the joint plate 19 is received by the joint plate receiving portion 42.

  The bent portion 22 of the joint plate 19 is inserted into the groove portion 157, the position of the tap hole 167 of the bent portion 22 of the joint plate 19 is aligned with the through hole 166 of the rising portion 43 of the main body portion 145, and is screwed into the bent portion 22. A bolt 165 is provided in the groove 157. As a result, it is possible to prevent the joint plate 19 from being applied with a force that presses the other joint plate 19 disposed on the lower side of the joint plate 19, and the friction between the overlapping joint plates 19 can be prevented. The joint plate 19 can be moved smoothly by reducing the force.

  The positioning member 147 includes a mounting table 158 on which the second telescopic link means 51 is mounted. The second telescopic link means 51 is mounted on the mounting table 158, and the mounting table 158 and the small piece 45 are mounted with bolts 164. The second telescopic link means 51 can be surely positioned in the vertical direction by screwing to the second telescopic link means 51, whereby the second telescopic link means 51 can be operated smoothly.

  The floor expansion joint device 110 according to the third embodiment can have a configuration having the following configuration. That is, the base 61 has a rising part 63 that rises vertically and a horizontal plane receiving part 111 provided at the upper end of the rising part 63, and the rail 13 has a rising part 64 that rises vertically, A hinge 120 having a rotation axis L parallel to the opposing portions 11 and 12 is disposed between the rising portion 64 and the rising portion 63 of the base 61, and the hinge 120 has a cylindrical shape having the rotation axis L. A plurality of hinge pieces having pivot bases 126, 127a, 127b and mounting seats 124, 125 provided on outer peripheral surfaces 132 of the pivot bases 126, 127a, 127b, respectively, and connected on the pivot axis L 121, 122, and a mounting seat of at least one hinge piece among the plurality of hinge pieces 121, 122 is bolted to the rising portion 64 of the rail 13 and The mounting seat of at least one hinge piece among the plurality of hinge pieces 121, 122 is attached to the receiving portion 111 of the base 61, and the rotation base portions 126, 127a, 127b of the plurality of hinge pieces 121, 122 are It is sandwiched between the rising portion 63 of the base portion 61 and the rising portion 64 of the rail 13.

  Further, the joint plate 19 includes a bent portion 22 that extends in the vertical direction, and the joint plate support member 144 includes a groove portion 157 that opens upward in the vertical direction and into which the bent portion 22 can be inserted. 22 is inserted and fixed so as to be close to the bottom 161 of the groove 157.

  Further, each joint plate support member 144 includes a mounting table 158 having a certain height and on which the second telescopic link means 51 can be mounted.

10, 110 Floor expansion joint device 11, 12, 71, 72 Opposing portion 13 Rail 15, 16 End portion 17 Support bar 18 Rail member 19 Joint plate 20 Ceiling expansion joint device 21 Rail portion 22 Bending portion 23 Body portion 24, 144 Joint plate support member 26 Rotating member 27, 28 Sliding member 31 Pin bolt 32, 33 Washer 34 Nut 35, 62 Bottom 37 Lower wall 38 Upper wall 39 Parting part 40 Side wall 41, 42 Joint plate receiving part 43, 63, 64 Standing portion 44 Slide portion 45 Small piece 50 First telescopic link means 51 Second telescopic link means 52, 53, 56, 57 Bracket 55, 58, 93 Support point 59 Air gap 60, 69 Wall surface 61 Base 67 Retaining pin 68, 166 Through Hole 74 Slide support member 77 Pin 81 Concave portion 82 Slide gripping portion 83 Convex portion 84 Eye Plate support members 87, 88, 89 Contact body 90 Opening portion 91 Vertical wall portion 92 Round pipe 94 Vertical wall 95 Vertical wall expansion joint device 96 Positioning fitting 111 Receiving portion 120 Hinge 121, 122 Hinge piece 123 Hinge pins 126, 127a 127b Rotating base 124, 125 Mounting seat 128 Sleeve 129 Hole 130 Bolt 132 Outer peripheral surface 133 Stopper 145 Main body 147 Positioning material 151 Vertical wall 157 Groove 158 Mounting base 161 Bottom 163 Lower surface 164, 165 Bolt 167 Tap hole

Claims (3)

A pair of rails arranged so as to extend in parallel along each of the opposing portions at opposing portions of the two buildings facing each other with a gap therebetween,
A support bar that is slidably supported at both ends in the longitudinal direction on each rail, and that rotates following the relative displacement in the direction of approaching and separating from each facing portion;
A plurality of joint plates disposed between the bases;
A plurality of joint plate support members for supporting the joint plates;
A plurality of rail members that are rotatably attached to the support bar at intervals, and that support the joint plate support member in a slidable manner;
Both end portions are rotatably supported on the facing portions, and the support bar is rotatably supported in the center between the pair of rails. The facing portions are moved toward and away from the facing portions. First telescopic link means that expands and contracts in the direction of approaching and separating from the part;
Both end portions are rotatably supported on the respective facing portions, and the plurality of joint plate support members are rotatably supported at predetermined intervals in a direction approaching and separating from the respective facing portions, An expansion joint device comprising: second expansion link means for displacing the plurality of joint plate support members following a relative displacement accompanying the proximity and separation of the expansion joints.   Each joint plate supporting member is provided with a height adjusting member having a certain height and aligning the height of the second telescopic link means placed on the upper surface. Item 2. The expansion joint device according to Item 1. A pair of rails arranged so as to extend in parallel along each of the opposing portions at opposing portions of the two buildings facing each other with a gap therebetween,
A plurality of support bars that are slidably supported at both ends in the longitudinal direction on each rail, and that rotate following the relative displacement in the direction of approaching and separating from each facing portion,
A plurality of joint plates covering between the opposing portions;
Both end portions are rotatably supported on the respective facing portions, and are pivotally supported on the support bar at the center between the pair of rails. First telescopic link means that expands and contracts in the direction of approaching and separating from the part;
A slide support member having a slide gripping portion provided with an arc-shaped recess that is supported by the first telescopic link means so as to be rotatable at a predetermined interval and whose lower portion is open;
A joint plate support member for supporting the joint plate, having an arcuate convex portion that is slidably and rotatably held in the arc-shaped concave portion of the slide support member;
The expansion joint device for ceilings characterized by having.

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