JP2015194060A - wall expansion joint device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall expansion joint device that can suppress production cost as much as possible.SOLUTION: A wall expansion joint device 1 comprises: first and second supporting parts 10, 30 fixed to wall surfaces 3a, 4a facing a gap 5 in wall bodies 3, 4, respectively; first and second joint plates 20, 40 turnably supported by each supporting part 10, 30 around axis lines J1, J2; and first and second expansion mechanisms 50, 60 installed in rear surfaces 20a, 40a of each joint plate 20, 40. The first expansion mechanism 50 has: a first guide member 51 fixed to the rear surface 20a, and formed of a guide groove 51c3 extending along the first plate width direction W1 parallel to the rear surface 20a and perpendicular to the vertical direction Z; and a first moving member 52 including an engagement part 51d2 for engaging with the guide groove 51c3 and slidably held to the first guide member 51 in the first plate width direction W1. The first guide member 51 has the same cross section as that of the first moving member 52.

Description

  The present invention relates to a wall expansion joint device installed on each wall body facing each other through a gap in the horizontal or substantially horizontal width direction between the inner walls and the inner walls of two adjacent buildings or between the outer walls and the outer walls. About.

  Conventionally, between walls facing each other through a gap in the horizontal or substantially horizontal width direction between the inner walls and the inner walls of two adjacent buildings or between the outer walls and the outer walls, A wall expansion joint device that can allow relative displacement is used (see, for example, Patent Document 1).

  As disclosed in Patent Document 1, a wall expansion joint device is fixed to a first receiving member fixed to a wall surface facing a gap in one wall body and a wall surface facing a gap in the other wall body. A second receiving member, a first cover member supported by the first receiving member so as to be rotatable about the vertical axis, and a rear surface supported by the second receiving member so as to be rotatable about the vertical axis. Is slidable on the first cover member, the second cover member provided so as to face the front surface of the first cover member, the first holder member fixed to the rear surface of the first cover member, and the first holder member. A first telescopic link mechanism including a supported first movable member; a second holder member fixed to the rear surface of the second cover member; and a second holder member slidably supported by the second holder member; 2nd telescopic link machine provided with the 2nd movable material connected with the movable material of Configured to include a door.

JP 2014-9456 A

  In the wall expansion joint device according to the prior art disclosed in Patent Document 1, the first holder material constituting the first expansion link mechanism has a dovetail engagement groove extending along its longitudinal direction. The first movable member is realized by a plate member having a protrusion that engages with the engaging groove. That is, two types of shapes are required to configure the telescopic link mechanism. For this reason, there exists a problem that the manufacturing cost of the expansion joint apparatus for walls is increasing.

  The objective of this invention is providing the expansion joint apparatus for walls which can suppress manufacturing cost as much as possible.

The present invention includes a first support portion fixed to a wall surface facing the gap in one of the two wall bodies adjacent to each other with a gap in the horizontal width direction;
A second support portion fixed to a wall surface facing the gap in the other wall body of the two wall bodies;
The thickness direction is orthogonal to the vertical direction and is supported by the first support portion so as to be rotatable around a first axis extending in the vertical direction so that the movable range does not interfere with the second support portion. A first joint plate provided in
The thickness direction is orthogonal to the vertical direction and is supported by the second support portion so as to be rotatable about a second axis extending in the vertical direction so that the movable range does not interfere with the first support portion. And when the direction perpendicular to each of the width direction and the vertical direction is a front-rear direction, a second joint plate provided so that a rear surface thereof faces the front surface of the first joint plate;
A first telescopic mechanism installed on the rear surface of the first joint plate,
A first guide member that is fixed to the rear surface and is formed with a guide groove extending along a first plate width direction parallel to the rear surface and perpendicular to the vertical direction;
A first telescopic mechanism having an engaging portion that engages with the guide groove and having a first moving member held by the first guide member so as to be slidable in the first plate width direction;
A second telescopic mechanism installed on the rear surface of the second joint plate,
A second guide member that is fixed to the rear surface and is formed with a guide groove extending along a second plate width direction parallel to the rear surface and perpendicular to the vertical direction;
An engagement portion that engages with the guide groove is held by the second guide member so as to be slidable in the second plate width direction, and is connected to the first moving member. A second telescopic mechanism having a moving member,
At least one of the first and second expansion and contraction mechanisms is a wall expansion joint device in which a guide member and a moving member belonging to the first and second expansion and contraction mechanisms have the same cross section.

Further, the present invention provides at least one support portion of the first and second support portions, and one joint plate of the first and second supported by the one support portion, Further comprising a hinge mechanism that is pivotally connected around an axis corresponding to them,
The hinge mechanism is
A plurality of shaft fixing portions provided on one side of the one support portion and the one joint plate and spaced apart from each other along the corresponding axis, wherein each shaft fixing portion has a gap in the vertical direction. And a plurality of shaft fixing portions having a pair of first cylindrical pieces each having a through hole coaxial with the corresponding axis,
On the other side of the one support portion and the one joint plate, each of the shaft fixing portions is provided so as to be disposed between a pair of cylindrical pieces, and a through hole coaxial with the corresponding axis is formed. A plurality of second cylindrical pieces,
A plurality of hinge shafts provided for each of the shaft fixing portions and capable of being inserted into the through holes of the first and second cylindrical pieces, and disposed between a pair of cylindrical pieces in the corresponding shaft fixing portions. A plurality of hinge shafts fixed to the shaft fixing portion in a state of being inserted through the through holes of the second cylindrical piece,
The vertical dimension of the second cylindrical piece is shorter than the vertical dimension of the gap between the pair of cylindrical pieces in the corresponding shaft fixing portion.

  Further, according to the present invention, the hinge shaft corresponding to the shaft fixing portion is disposed above the shaft fixing portion disposed on the lower side of the two shaft fixing portions adjacent in the vertical direction along the corresponding axis line. A gap longer than the longitudinal dimension is formed.

Further, the present invention provides at least one support portion of the first and second support portions, and one joint plate of the first and second supported by the one support portion, Further comprising a hinge mechanism that is pivotally connected around an axis corresponding to them,
The hinge mechanism is
A plurality of holes are formed on one side of the one support part and the one joint plate along the corresponding axis so as to be spaced apart from each other, and a through hole coaxial with the corresponding axis is formed. A first tubular piece;
A plurality of holes formed on the other side of the one support portion and the one joint plate so as to be disposed between the plurality of first cylindrical pieces, and having a through hole coaxial with the corresponding axis. A second cylindrical piece of
A hinge shaft that can be inserted into the through holes of the first and second cylindrical pieces, and is a first shaft that is disposed at the uppermost position while being inserted through the through holes of the plurality of second cylindrical pieces. A hinge shaft fixed to the cylindrical piece and the first cylindrical piece arranged at the lowest position,
The vertical dimension of the second cylindrical piece is shorter than the vertical dimension of the gap between the corresponding first cylindrical pieces.

  The present invention is further characterized by further comprising a biasing means for biasing the first moving member in a direction toward one wall body in the first plate width direction.

  According to the present invention, since at least one of the first and second expansion / contraction mechanisms has the same cross section, that is, the guide member and the moving member belonging to the first and second expansion / contraction mechanisms, that is, from one type of long profile. Since the guide member and the moving member can be cut out to an appropriate length, the manufacturing cost can be suppressed as much as possible compared to the case where different shapes are produced for each guide member and the moving member. Can do.

1 is a front view of a wall expansion joint device 1 according to a first embodiment of the present invention. It is sectional drawing seen from the cut surface line II-II in FIG. It is sectional drawing seen from the cut surface line III-III in FIG. It is sectional drawing which expands and shows the A section in FIG. It is sectional drawing which expands and shows the B section in FIG. It is sectional drawing seen from the cut surface line VI-VI in FIG. FIG. 4 is a diagram illustrating a part of the configuration of the hinge mechanism 15. FIG. 5 is a cross-sectional view showing a transverse section of a first guide member 51 in the first expansion / contraction mechanism 50. It is sectional drawing seen from the cut surface line IX-IX in FIG. It is a figure which shows an example of the operation state of the expansion joint apparatus for walls 1 when each wall body 3 and 4 carries out relative displacement. It is a front view of the expansion joint apparatus 1A for walls which concerns on the 2nd Embodiment of this invention. It is a figure which decomposes | disassembles and shows the structure of 15 A of hinge mechanisms in the expansion joint apparatus for walls 1A. It is a figure which shows a part of structure of the hinge mechanism 15B in the expansion joint apparatus for walls which concerns on the 3rd Embodiment of this invention. It is a figure which shows a part of structure of the hinge mechanism 15C in the expansion joint apparatus for walls which concerns on the 4th Embodiment of this invention. It is a figure which shows the structure of 2nd expansion-contraction mechanism 60D in the expansion joint apparatus for walls concerning the 5th Embodiment of this invention, and is a figure corresponding to sectional drawing seen from the cut surface line IX-IX in FIG.

(First embodiment)
FIG. 1 is a front view of a wall expansion joint device 1 according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along section line II-II in FIG. 1, and FIG. 3 is a cross-sectional view taken along section line III-III in FIG. 4 is an enlarged cross-sectional view showing a portion A in FIG. 2, and FIG. 5 is an enlarged cross-sectional view showing a portion B in FIG. 6 is a cross-sectional view taken along section line VI-VI in FIG. In FIG. 6, in order to facilitate understanding, a part of the configuration such as the tension coil spring 56 is omitted.

  The wall expansion joint device 1 is for a wall installed between each wall surface 3a, 4a facing the gap 5 in two adjacent wall bodies 3, 4 with a gap 5 in the width direction X perpendicular to the vertical direction Z. The expansion joint device functions as a partition between the space 6 on the front Y1 side and the space 7 on the rear Y2 side in the front-rear direction Y perpendicular to both the width direction X and the vertical direction Z.

  The wall expansion joint device 1 maintains the function as a partition between the space 6 and the space 7 while allowing relative displacement of the wall bodies 3 and 4 in the width direction X and the front-rear direction Y due to an earthquake or the like. It is configured. In addition, the two wall bodies 3 and 4 are comprised by the concrete structure, for example.

  The wall expansion joint device 1 according to the present embodiment generally includes a first support portion 10, a first joint plate 20, a second support portion 30, a second joint plate 40, and a first expansion mechanism 50. And a second expansion / contraction mechanism 60.

  The first support portion 10 is a long and metal member made of, for example, an aluminum shape, and is fixed to the wall surface 3a of one wall body 3 in a posture in which the longitudinal direction thereof coincides with the vertical direction Z. The first joint plate 20 is supported so as to be rotatable around an axis J1 extending in the vertical direction Z.

  Specifically, as shown in FIG. 4, the first support portion 10 extends in the vertical direction Z and is fixed to the wall surface 3 a by a plurality of anchor bolts 8. The bent portion 12 having an L-shaped cross section that is continuous with one side edge portion on the front Y1 side and the one side edge portion on the opposite side of the bent portion 12 that is continuous with the fixing portion 11 are spaced apart from each other in the vertical direction Z. A plurality of (4 in this embodiment) shaft fixing portions 13 provided to connect the first support portion 10 and the first joint plate 20 so as to be rotatable about the axis J1. It functions as a part of the hinge mechanism 15.

  FIG. 7 is a view showing a part of the configuration of the hinge mechanism 15, and shows a part thereof in an exploded manner. In the present embodiment, the hinge mechanism 15 includes a plurality of shaft fixing portions 13 in the first support portion 10 and the same number of hinge shafts 16 and hinge pieces 17 as the number of the shaft fixing portions 13.

  Each shaft fixing portion 13 is configured by a pair of cylindrical first cylindrical pieces 13a and 13b provided with a gap S1 in the vertical direction Z. The first cylindrical pieces 13a and 13b in the plurality of shaft fixing portions 13 are formed with through holes 13c having the same diameter along the vertical direction Z so that the central axes coincide with each other. The central axis of these through holes 13c corresponds to the axis J1. Here, of the pair of first cylindrical pieces 13a and 13b in each shaft fixing portion 13, the one arranged on the upper side is the first cylindrical piece 13a, and the one arranged on the lower side is the first cylindrical piece. Let it be a piece 13b.

  Each hinge piece 17 is a metal member made of, for example, an aluminum shape, which is fixed to the first joint plate 20 via a first guide member 51 and the like which will be described later, and is connected to a flat connecting portion 17a. It is provided with a second cylindrical piece 17b that is provided continuously with one side edge of the portion 17a and extends along the one side edge. A through hole 17c having the same diameter as the through hole 13c is formed in the second cylindrical piece 17b along the one side edge. The second cylindrical piece 17b is formed so that it can be disposed between the first cylindrical pieces 13a and 13b with the central axis of the through hole 17c aligned with the axis J1.

  Each hinge shaft 16 includes a bolt 16a and a nut 16b. The bolt 16a is longer than the distance in the vertical direction Z between the upper end surface of the first cylindrical piece 13a and the lower end surface of the first cylindrical piece 13b in the shaft fixing portion 13, and can be inserted into the through holes 13c and 17c. A cylindrical shaft portion is provided, and a screw for screwing the nut 16b is engraved on the outer peripheral surface at the lower end portion of the shaft portion.

  As shown in FIG. 7, the hinge mechanism 15 includes a second cylindrical piece 17 b of each hinge piece 17 disposed between the pair of first cylindrical pieces 13 a and 13 b in each shaft fixing part 13, and the shaft fixing part. 13, the shaft portion of the bolt 16 a is inserted into the through holes 13 c and 17 c in the order of the first tubular piece 13 a, the second tubular piece 17 b, and the first tubular piece 13 b, and the nut 16 b is inserted into the shaft portion. And the hinge shaft 16 is fastened and fixed to the shaft fixing portion 13.

  Thereby, each hinge piece 17 will be connected with the 1st support part 10 so that rotation around the axis line J1 is possible. Accordingly, each hinge piece 17 is fixed to the first joint plate 20 via a first guide member 51 and the like which will be described later, so that the first joint plate 20 can be rotated around the axis J1 to be the first support. Supported by part 10.

  Note that, above the remaining shaft fixing portion 13 excluding the shaft fixing portion 13 provided at the uppermost position, the length L4 is longer than the longitudinal dimension L3 of the bolt 16a on the hinge shaft 16 along the vertical direction Z. A gap S2 is formed. Accordingly, with respect to these shaft fixing portions 13, the bolts 16 a can be inserted into and removed from the through holes 13 c of the shaft fixing portion 13 through the gap S 2.

  In the present embodiment, as shown in FIG. 7, the hinge mechanism 15 is configured such that the dimension L2 of the second cylindrical piece 17b in each hinge piece 17 in the vertical direction Z is equal to the first cylindrical piece 13a in each shaft fixing portion 13. The gap S1 between 13b is selected and configured to be shorter than the dimension L1 in the vertical direction Z. Accordingly, the first joint plate 20 supported by the first support portion 10 is allowed to be displaced in the vertical direction Z by a distance corresponding to the difference between the dimension L1 and the dimension L2.

  A long metal hinge bracket 18 is fixed to the connecting portion 17a of each hinge piece 17 configured as described above by a fastener such as a screw in a posture in which the longitudinal direction thereof coincides with the vertical direction Z. The The hinge bracket 18 has a plate-like covering portion 18a that extends in the vertical direction Z so as to face each end face on the first support portion 10 side in the longitudinal direction u of each first guide member 51 described later. Yes.

  A plurality of (four in the present embodiment) metal brackets 19 having an L-shaped cross-section to which the first telescopic mechanism 50 is coupled are spaced in the vertical direction Z on the covering portion 18a of the hinge bracket 18; It is fixed by a fastener such as a screw. The plurality of brackets 19 are respectively disposed at the same height position (position in the vertical direction Z) where the plurality of hinge pieces 17 are disposed, and are fixed to the hinge bracket 18.

  The first telescopic mechanism 50 includes a plurality (four in this embodiment) of first guide members 51, the same number of first moving members 52 as the first guide members 51, and a plurality (three in this embodiment) of opening closing portions. 53.

  FIG. 8 is a cross-sectional view showing a cross section of the first guide member 51 in the first expansion / contraction mechanism 50. The first guide member 51 is a long metal member made of, for example, an aluminum shape.

  As shown in FIG. 8, the first guide member 51 has a rectangular plate shape, and extends from the bottom wall portion 51a along the longitudinal direction u. The first guide member 51 is perpendicular to the main surface of the bottom wall portion 51a. At a position separated in the height direction v, a rectangular plate-shaped upper wall portion 51b extending along the longitudinal direction u in parallel with the bottom wall portion 51a, and a width direction w (longitudinal) of the bottom wall portion 51a and the upper wall portion 51b Each side edge on one side in the direction u and the height direction v) is formed so as to be perpendicular to the bottom wall 51a and the top wall 51b, and along the longitudinal direction u. The extending plate-like side wall 51c and the side edges on the other side in the width direction w of the bottom wall 51a and the upper wall 51b are connected to form a right angle to the bottom wall 51a and the upper wall 51b. And a plate-like side wall 51d extending along the longitudinal direction u.

  In the first guide member 51, a rectangular tube having a rectangular cross section extending in the longitudinal direction u is formed by the bottom wall portion 51a, the upper wall portion 51b, and the side wall portions 51c and 51d. Further, as shown in FIG. 8, each of the side wall portions 51c and 51d has flat plate-like projecting portions 51c1 and 51d1 projecting in the height direction v from the upper wall portion 51b. The protrusions 51c1 and 51d1 will be described later.

  Each first guide member 51 configured in this manner has a longitudinal direction in which the width direction w coincides with the vertical direction Z and the bottom wall portion 51a is disposed on the front Y1 side with respect to the upper wall portion 51b. One end portion in the direction u is fixed to the plurality of brackets 19 by a fastener such as a screw. Thereby, as described above, the end surface on one side in the longitudinal direction u of each first guide member 51 and the covering portion 18a of the hinge bracket 18 face each other.

  The first joint plate 20 is a metal plate-like member formed in a substantially rectangular shape when viewed in the thickness direction, and the thickness direction thereof is in the vertical direction Z as shown in FIGS. It fixes to the bottom wall part 51a of each 1st guide member 51 fixed to the some bracket 19 with fasteners, such as a screw, in the orthogonal | vertical attitude | position. Hereinafter, among the main surfaces of the first joint plate 20 fixed to the first guide member 51, the main surface on the front Y1 side is referred to as a front surface 20a, and the main surface on the rear Y2 side is referred to as a rear surface 20b. In the first guide member 51, a direction parallel to the main surface and perpendicular to the vertical direction Z is referred to as a first plate width direction W1.

  The first joint plate 20 is formed such that the dimension in the first plate width direction W1 is slightly larger than the dimension in the longitudinal direction u of the first guide member 51, and each first guide member 51 has its bottom wall The part 51a is disposed so as to face the rear surface 20b of the first joint plate 20 over the entire length in the longitudinal direction u.

  In the present embodiment, the dimension of the first joint plate 20 in the vertical direction Z is selected to be substantially the same as the dimension of the first support portion 10 in the vertical direction Z. Further, the dimension of the first joint plate 20 in the first plate width direction W1 is such that the movable range does not interfere with the second support portion 30 when the first joint plate 20 rotates around the axis J1. 5 is selected to be about half of the dimension in the width direction X.

  Returning to FIG. 8 again, in the first guide member 51, the guide groove 51e1 extends along the longitudinal direction u and opens toward the other side wall 51d at the tip of the protrusion 51c1 on the one side wall 51c. A groove portion 51e having a U-shaped cross section is defined. In addition, an engaging portion 51f having a U-shaped cross section is formed at the distal end portion of the protruding portion 51d1 on the other side wall portion 51d. The engaging portion 51f extends in the longitudinal direction u and is formed in a shape that can engage with the guide groove 51e1. Is done.

  Specifically, the groove 51e is connected to the tip of the protrusion 51c1, and extends from the tip to the other side wall 51d at a right angle and a flat side wall 51e2 extending in the height direction v. And a side wall 51e4 that is connected to an end of the bottom 51e3 opposite to the side wall 51e2 and bends at right angles from the end toward the other side wall 51d. The side wall 51e4 faces the side wall 51e2 so that the thickness of the intermediate portion in the width direction w is the largest and matches or substantially matches the distance between the side walls 51f1 and 51f3 of the engaging portion 51f described later. Both the surface and the surface opposite to the surface are formed as convex surfaces.

  On the other hand, the engaging portion 51f is connected to the distal end portion of the protruding portion 51d1, and is opposite to the flat-plate side wall portion 51f1 that is bent at right angles from the distal end portion to the side wall portion 51c side, and the protruding portion 51d1 in the side wall portion 51f1. A flat plate-like bottom portion 51f2 bent at a right angle from the end portion to a side away from the upper wall portion 51b, and an end portion of the bottom portion 51f2 opposite to the side wall portion 51f1. Side wall 51f3 bent at a right angle from the side wall 51c to the side away from one side wall 51c, and the side wall 51f3 has the largest thickness at the intermediate portion in the width direction w, and the groove 51e A surface opposite to the surface facing the side wall 51f1 is formed as a convex surface so as to match or substantially match the distance between the side walls 51e2 and 51e4.

  The dimensions of the groove 51e and the engaging portion 51f are selected so that the first guide members 51 can be engaged with each other using them. Thereby, in this embodiment, the 1st moving member 52 in the 1st expansion-contraction mechanism 50 is implement | achieved by what was cut out to the predetermined length from the same metal shape material as what the 1st guide member 51 is cut out. . That is, the first moving member 52 has the same cross section as that of the first guide member 51 shown in FIG. 8 (a cross section when cut along a virtual plane perpendicular to the longitudinal direction u), for example, from an aluminum profile. This is realized by a long and metal member. Hereinafter, in the 1st movement member 52, about the same structure as the 1st guide member 51, the same referential mark is attached | subjected and demonstrated.

  The first moving member 52 has a posture in which the longitudinal direction u of the first moving member 52 coincides with the longitudinal direction u of the first guide member 51 and the upper wall portion 51b of the first moving member 52 faces the upper wall portion 51b of the first guide member 51. The side wall 51f3 of the engaging portion 51f of the first guide member 51 is fitted into the guide groove 51e1 of the first guide member 51, and the side wall 51f3 of the engaging portion 51f of the first guide member 51 is fitted to the guide groove 51e1 of the first guide member 51. By being inserted, it is connected to the first guide member 51.

  At this time, the side wall 51e4 in the groove 51e of the first guide member 51 is fitted between the side walls 51f1 and 51f3 in the engaging part 51f of the first moving member 52, and the side wall 51e4 in the groove 51e of the first moving member 52 is inserted. Is fitted between the side wall portions 51f1 and 51f3 of the engaging portion 51f of the first guide member 51. Thereby, the 1st moving member 52 is hold | maintained at the 1st guide member 51 so that sliding is possible along the 1st board width direction W1 in which the 1st guide member 51 is extended.

  In the present embodiment, as described above, the thickness of the intermediate part of the side wall part 51e4 in the groove part 51e matches or substantially matches the distance between the side wall parts 51f1 and 51f3 in the engaging part 51f, and the side wall part in the engaging part 51f. Since the thickness of the intermediate portion of 51f3 matches or substantially matches the distance between the side wall portions 51e2 and 51e4 in the groove portion 51e, the first moving member 52 can be moved in the height direction v without causing backlash. 1 guide member 51 can hold it.

  Further, as described above, since the side wall 51e4 in the groove 51e and the side wall 51f3 in the engaging part 51f are formed to have convex surfaces, the contact area between the groove 51e and the engaging part 51f is reduced. The first moving member 52 can be easily slid with respect to the first guide member 51. In the present embodiment, the dimension of the first moving member 52 in the longitudinal direction u is selected to be substantially the same as the dimension of the first guide member 51 in the longitudinal direction u.

  As shown in FIG. 6, the first moving members 52 held in the first guide member 51 are connected to each other by a pair of first moving members 52 adjacent to each other in the vertical direction Z by the opening closing portion 53. Is done.

  Specifically, each opening blocking portion 53 includes a side wall portion 51d disposed on the lower side of the first moving member 52 disposed on the upper side of the pair of first moving members 52 adjacent in the vertical direction Z, and The first holding member 51 that holds the first moving member 52 is disposed on the lower side of the pair of first moving members 52 and the first cover plate 53a that covers the side wall 51c disposed on the lower side from the lower side. A first side wall 51c disposed on the upper side of the first moving member 52 and a second cover plate 53b that covers the side wall 51d disposed on the upper side of the first holding member 51 that holds the first moving member 52 from above. And a closing plate 53c provided across the front Y1 end 53a1 of the first cover plate 53a and the front Y1 end 53b1 of the second cover 53b.

  The first cover plate 53a is fixed to the side wall portion 51d of the first moving member 52 disposed on the upper side by a fastener such as a screw, and the second cover plate 53b is disposed on the lower side by a fastener such as a screw. The first moving member 52 is fixed to the side wall 51c. The closing plate 53c is fixed to the end portion 53a1 of the first covering plate 53a and the end portion 53b1 of the second covering plate 53b by a fastener such as a screw.

  As a result, the plurality of first moving members 52 and the plurality of opening blocking portions 53 are integrated into the first telescopic mechanism 50 and slide in the first plate width direction W1 with respect to the plurality of first guide members 51. Configured to do.

  In addition, at each end of the plurality of first moving members 52 in the longitudinal direction u opposite to the first support portion 10 side, a long and metal spring receiving bracket 55 has a longitudinal direction that is vertical. It is fixed by a fastener such as a screw in a posture corresponding to the direction Z.

  The spring receiving bracket 55 is a plate-shaped covering portion provided to face each end face on the opposite side to the first support portion 10 side in the longitudinal direction u of each first guide member 51 and each first moving member 52. 55a and a plate-like connecting portion 55b that is connected to the side edge portion on the front Y1 side of the covering portion 55a and bends at right angles from the side edge portion to the side opposite to the first support portion 10 side. Is done.

  The covering portion 55 a of the spring receiving bracket 55 is provided so as to be parallel to the covering portion 18 a of the hinge bracket 18. That is, the covering portion 55a and the covering portion 18a are provided such that their thickness directions coincide with each other and are parallel to the first plate width direction W1.

  As shown in FIG. 1, between the covering portion 55a and the covering portion 18a, the spring receiving bracket 55 is spring-biased toward the first support portion 10 along the first plate width direction W1. A plurality of (two in this embodiment) tension coil springs 56 as urging means are provided in the vertical direction Z at intervals.

  The plurality of first moving members 52, the plurality of opening closing portions 53, the spring receiving brackets 55, and the plurality of second moving members 62 described later move integrally, and these are moved by the spring biasing force of the tension coil spring 56. In the normal state, that is, in the state in which the dimension in the width direction X between the wall surfaces 3a and 4a facing the gap 5 does not change, it is disposed at the initial position near the first support portion 10 in the first plate width direction W1.

  In the present embodiment, by providing such a tension coil spring 56, a plurality of first moving members 52 and the like can be provided in association with relative displacement in the width direction X of each wall body 3, 4 during an earthquake. Even if it is displaced from the initial position along the first plate width direction W1 to the side opposite to the first support portion 10 side, when the earthquake stops, the plurality of first moving members 52 and the like are moved to the tension coil spring 56. The spring biasing force can return to the initial position again.

  In addition, a plurality of second moving members 62 to be described later are provided at intervals in the vertical direction Z on the main surface on the front Y1 side of the connecting portion 55b in the spring receiving bracket 55. Specifically, each second moving member 62 is spring-biased in a direction approaching the connecting portion 55b by the spring biasing force of the compression coil spring 57 provided on the main surface on the rear Y2 side of the connecting portion 55b. It is installed at. That is, the spring receiving bracket 55 is provided so as to be displaceable in a direction away from each second moving member 62 against the spring biasing force of the compression coil spring 57.

  The second support portion 30 is a long and metal member made of, for example, an aluminum shape, and is fixed to the wall surface 4a of the other wall body 4 in a posture in which the longitudinal direction coincides with the vertical direction Z. The second joint plate 40 is supported so as to be rotatable about an axis J2 extending in the vertical direction Z.

  Specifically, as shown in FIG. 5, the second support portion 30 extends in the vertical direction Z and is fixed to the wall surface 4 a by a plurality of anchor bolts 9. A bent portion 32 having an L-shaped cross section that is connected to one side edge portion on the front Y1 side, and one side edge portion on the opposite side of the bent portion 32 from the side that is connected to the fixing portion 31, is spaced apart from each other in the vertical direction Z. A plurality of (four in this embodiment) shaft fixing portions 33 provided to connect the second support portion 30 and the second joint plate 40 so as to be rotatable around the axis J2. It functions as a part of the hinge mechanism 35. In the present embodiment, the plurality of shaft fixing portions 33 are respectively provided at height positions corresponding to the plurality of shaft fixing portions 13 in the first support portion 10.

  The hinge mechanism 35 includes a plurality of shaft fixing portions 33 in the first support portion 30 and the same number of hinge shafts 36 and hinge pieces 37 as the number of shaft fixing portions 33. In the present embodiment, the hinge mechanism 35 is configured in the same manner as the hinge mechanism 15. Specifically, the shaft fixing portion 33 is configured in the same manner as the shaft fixing portion 13, the hinge shaft 36 is configured in the same manner as the hinge shaft 16, and the hinge piece 37 is configured in the same manner as the hinge piece 17. For this reason, the illustration of the hinge mechanism 35 is omitted and the description of each of the components 33, 36, and 37 is omitted, and each of the components 33, 36, and 37 in the hinge mechanism 15 is omitted. The same components as those described in FIG.

  Similarly to the hinge mechanism 15, the hinge mechanism 35 includes the second cylindrical pieces 17 b of the hinge pieces 37 disposed between the pair of first cylindrical pieces 13 a and 13 b in the shaft fixing parts 33, respectively. 33, the shaft portion of the bolt 16a is inserted into the through holes 13c and 17c in the order of the first cylindrical piece 13a, the second cylindrical piece 17b, and the first cylindrical piece 13b, and the nut 16b is inserted into the shaft portion. It is comprised by screwing together and fastening.

  Thereby, each hinge piece 37 will be connected with the 2nd support part 30 so that rotation around the axis line J2 is possible. Accordingly, each hinge piece 37 is fixed to the second joint base plate 40 via a second guide member 61 and the like which will be described later, so that the second joint base plate 40 can be rotated around the axis line J2 to be second supported. It will be supported by the part 30.

  A second telescopic mechanism 60 is connected to each connecting portion 17 a of the plurality of hinge pieces 37. The second telescopic mechanism 60 includes a plurality (four in this embodiment) of second guide members 61 and the same number of second moving members 62 as the second guide members 61.

  In the present embodiment, the second guide member 61 is realized by an elongated metal member having the same cross section as that of the first guide member 51 shown in FIG. . That is, the 2nd guide member 61 is implement | achieved by what was cut out to the predetermined length from the same metal shape material as what the 1st guide member 51 and the 1st moving member 52 are cut out. Hereinafter, in the 2nd guide member 61, about the same structure as the 1st guide member 51, the same referential mark is attached | subjected and demonstrated.

  Each of the second guide members 61 has a posture in which the longitudinal direction u is orthogonal to the vertical direction Z and the bottom wall portion 51a is disposed on the front Y1 side with respect to the upper wall portion 51b. , And are fixed to the connecting portions 17a of the plurality of hinge pieces 37 by fasteners such as screws.

  The second joint plate 40 is a metal plate-like member that is formed in a substantially rectangular shape when viewed in the thickness direction, and the thickness direction thereof is in the vertical direction Z as shown in FIGS. It fixes to the bottom wall part 51a of each 2nd guide member 61 fixed to the several hinge piece 37 with fasteners, such as a screw, in the orthogonal | vertical attitude | position. Hereinafter, among the main surfaces of the second joint plate 40 fixed to the second guide member 61, the main surface on the front Y1 side is referred to as a front surface 40a, and the main surface on the rear Y2 side is referred to as a rear surface 40b. In the second guide member 61, a direction parallel to the main surface and perpendicular to the vertical direction Z is referred to as a second plate width direction W2.

  The second joint plate 40 is formed such that the dimension in the second plate width direction W2 is slightly larger than the dimension in the longitudinal direction u of the second guide member 61, and each second guide member 61 has its bottom wall. The part 51a is disposed so as to face the rear surface 40b of the second joint base plate 40 over the entire length in the longitudinal direction u.

  In the present embodiment, the dimension of the second joint base plate 40 in the vertical direction Z is selected to be substantially the same as the dimension of the second support part 30 in the vertical direction Z. The dimension of the second joint board 40 in the second plate width direction W2 is such that the movable range does not interfere with the first support portion 10 when the second joint board 40 rotates around the axis J2. The rear surface 40b is selected so that a part of the rear surface 40b can be disposed to face the front surface 20a of the first joint plate 20.

  FIG. 9 is a cross-sectional view taken along section line IX-IX in FIG. In the second telescopic mechanism 60, the second moving member 62 has a cross section identical to a part of the cross section of the first guide member 51 shown in FIG. It is realized by.

  Specifically, the second moving member 62 is formed by cutting the first guide member 51 and the first moving member 52 into a predetermined length from a long metal profile, and further, a bottom wall portion. This is realized by processing 51a and the side walls 51c and 51d so as to remove the portions excluding the protrusions 51c1 and 51d1. In FIG. 9, a portion removed by processing is indicated by a virtual line. Hereinafter, in the 2nd moving member 62, about the same structure as the 1st guide member 51, the same referential mark is attached | subjected and demonstrated.

  The second moving member 62 has a posture in which the longitudinal direction u of the second moving member 62 coincides with the longitudinal direction u of the second guide member 61 and the upper wall portion 51b of the second moving member 62 faces the upper wall portion 51b of the second guide member 61. The side wall 51f3 of the engagement portion 51f of the second guide member 61 is fitted into the guide groove 51e1 of the second guide member 61, and the side wall 51f3 of the engagement portion 51f of the second guide member 61 is fitted to the guide groove 51e1 of the second guide member 61. By being inserted, the second guide member 61 is connected.

  At this time, the side wall 51e4 in the groove 51e of the second guide member 61 fits between the side walls 51f1 and 51f3 in the engaging part 51f of the second moving member 62, and the side wall 51e4 in the groove 51e of the second moving member 62. Is fitted between the side wall portions 51f1 and 51f3 of the engaging portion 51f of the second guide member 61. Thereby, the 2nd moving member 62 is hold | maintained at the 2nd guide member 61 so that sliding is possible along the 2nd board width direction W2 in which the 2nd guide member 61 is extended.

  In the present embodiment, as with the first telescopic mechanism 50, the second moving member 62 is also held by the second guide member 61 without causing rattling in the height direction v, similarly to the first telescopic mechanism 50. In addition, the second moving member 62 can be easily slid with respect to the second guide member 61. In the present embodiment, the dimension of the second moving member 62 in the longitudinal direction u is selected to be smaller than the dimension of the second guide member 61 in the longitudinal direction u.

  In this way, each second moving member 62 held by the second guide member 61 is reinforced in such a posture that its upper wall portion 51b faces the main surface on the front Y1 side of the connecting portion 55b of the spring receiving bracket 55. Through the member 63, it is connected to the connecting portion 55b as described above. As shown in FIG. 9, the reinforcing member 63 is formed in a shape that covers the upper wall portion 51b and the protruding portions 51c1 and 51d1 of the second moving member 62 from the outside, and the upper wall portion 51b and the protruding portion 51c1, It has a function of reinforcing the second moving member 62 by being fixed to 51d1 with a fastener such as a screw. Further, the reinforcing member 63 has a portion that covers the bottom 51e3 of the groove 51e of the second guide member 61 from the outside when the second guide member 61 is connected to the second moving member 62. The two moving members 62 are prevented from being detached from the second guide member 61.

  FIG. 10 is a diagram illustrating an example of an operation state of the wall expansion joint device 1 when the wall bodies 3 and 4 are relatively displaced. FIG. 10A shows the operating state of the wall expansion joint device 1 when the wall body 3 is displaced in the direction approaching the wall body 4 and is displaced forward Y1 with respect to the wall body 4. 10 (b) shows an operating state of the wall expansion joint device 1 when the wall body 3 is displaced in the direction away from the wall body 4 and is displaced forward Y1 with respect to the wall body 4. FIG. (C) has shown the operation | movement state of the expansion joint apparatus 1 for walls when each wall body 3 and 4 is displaced so that it may separate in the width direction X. FIG.

  When the wall body 3 is displaced relatively in the front-rear direction Y with respect to the wall body 4, as shown in FIGS. 10 (a) and 10 (b), the wall expansion joint device 1 As the first joint plate 20 rotates about the axis J1, the second joint plate 40 rotates about the axis J2, and the second moving member 62 slides relative to the second guide member 61. The relative displacement is allowed, and the function as a partition between the space 6 and the space 7 is maintained.

  When the distance between the first support part 10 and the second support part 30 is larger than that in the normal state, as shown in FIG. 2 The front surface 20a of the first joint plate 20 facing the part of the rear surface 40b of the second joint plate 40 by sliding with respect to the second guide member 61 in the direction away from the support portion 30. It will be exposed to the space 6 on the front Y1 side.

  Further, when the wall body 3 is displaced in the direction away from the wall body 4, first, as described above, in the wall expansion joint device 1, as described above, the second moving member 62 is moved by the second support portion 30. When the second moving member 62 slides in the direction away from the second guide member 61 and the second moving member 62 can no longer slide, this time, as shown in FIG. However, by sliding against the first guide member 51 in the direction away from the first support portion 10 against the spring biasing force of the tension coil spring 56, the relative displacement is allowed, and the space 6 The function as a partition between the space 7 and the space 7 is maintained.

  In addition, when the 1st moving member 52 slides with respect to the 1st guide member 51, the upper wall part 51b of each 1st moving member 52 and each opening obstruction | occlusion part 53 with the front surface 20a of the 1st joint board 20. Is exposed to the space 6 on the front Y1 side.

  As described above, according to the present embodiment, in the first expansion / contraction mechanism 50, the first guide member 51 and the first movement that are cut out to a predetermined length from one type of long metal profile are used. Since it uses as the member 52, compared with the case where a different shape material is manufactured for every 1st guide member 51 and the 1st moving member 52, manufacturing cost can be suppressed as much as possible.

  Further, according to the present embodiment, the second metal guide member 61 and the second moving member 62 in the second expansion / contraction mechanism 60 are also made of the same metal profile as the first guide member 51 and the first moving member 52 cut out. From the above, since a product cut out to a predetermined length and processed as necessary is used, the manufacturing cost can be further suppressed.

(Second Embodiment)
FIG. 11 is a front view of a wall expansion joint device 1A according to a second embodiment of the present invention. FIG. 12 is an exploded view showing the configuration of the hinge mechanism 15A in the wall expansion joint device 1A.

  The wall expansion joint device 1A according to the present embodiment is the rest except that the hinge mechanisms 15A and 35A are employed instead of the hinge mechanisms 15 and 35 in the wall expansion joint device 1 according to the first embodiment. Since the configuration is the same as that of the wall expansion joint device 1 according to the first embodiment, the same configuration is denoted by the same reference numeral, and redundant description is omitted. Further, since the hinge mechanism 35A in the present embodiment is configured in the same manner as the hinge mechanism 15A, only the hinge mechanism 15A will be described below.

  The hinge mechanism 15A is connected to one edge of the first support portion 10 on the opposite side of the bent portion 12 from the side connected to the fixed portion 11, and is provided with a plurality of gaps S1 in the vertical direction Z (this embodiment). In the embodiment, the configuration includes the first cylindrical piece 13A of 5), a long hinge shaft 16A, and the same number of hinge pieces 17 as the number of gaps S1 (4 in the present embodiment).

  Each first cylindrical piece 13A is formed with through holes 13c having the same diameter along the vertical direction Z so that the central axes coincide with each other, and the central axes of these through holes 13c correspond to the axis J1. To do. In addition, the first cylindrical piece 13A arranged at the uppermost position and the first cylindrical piece 13A arranged at the lowermost position along the one radial direction of the central axis of the through-hole 13c in the hinge shaft 16A. Screw holes into which the screws 16Ab can be screwed are formed. Here, the distance in the vertical direction Z between the two screw holes is L5.

  The hinge shaft 16A is constituted by a columnar rod-shaped member 16Aa and two screws 16Ab. The rod-shaped member 16Aa is longer than the distance in the vertical direction Z between the lower end surface of the first cylindrical piece 13A disposed at the uppermost position and the upper end surface of the first cylindrical piece 13A disposed at the lowermost position. , Has a dimension L6 slightly shorter than the distance L5 between the screw holes, and is formed so as to be fitted into the through holes 13c and 17c. The screw 16Ab has a shaft portion that can be screwed into the screw hole, and the shaft portion is arranged so as to cross the through-hole 13c when the screw 16Ab is fastened to the first cylindrical piece 13A. The dimension is selected.

  As shown in FIG. 12, the hinge mechanism 15A has the second cylindrical piece 17b of each hinge piece 17 disposed between the first cylindrical pieces 13A, and the rod-like member 16Aa is connected to the first cylindrical piece 13A and the first cylindrical piece 13A. The two cylindrical pieces 17b are alternately inserted into the through-holes 13c and 17c, screwed into the respective screw holes, and fastened to the first cylindrical pieces 13A by the shaft portions of the screws 16Ab, thereby the rod-like member 16Aa. It is configured by preventing the slipping out.

  Thereby, each hinge piece 17 will be connected with the 1st support part 10 so that rotation around the axis line J1 is possible. Therefore, each hinge piece 17 is fixed to the first joint plate 20 via the first guide member 51 and the like, so that the first joint plate 20 is rotatable about the axis J1. Supported by

  Also in the present embodiment, similarly to the first embodiment, the hinge mechanism 15A is configured such that the dimension L2 in the vertical direction Z of the second cylindrical piece 17b in each hinge piece 17 is equal to the gap S1 between the first cylindrical pieces 13A. It is selected and configured to be shorter than the dimension L1 in the vertical direction Z. Accordingly, the first joint plate 20 supported by the first support portion 10 is allowed to be displaced in the vertical direction Z by a distance corresponding to the difference between the dimension L1 and the dimension L2.

  Even in the wall expansion joint device 1A according to the second embodiment in which the hinge mechanism 15A for rotatably connecting the first support portion 10 and the first joint plate 20 around the axis line J1 is configured as described above. The same effects as those of the first embodiment are obtained.

(Third embodiment)
FIG. 13: is a figure which shows a part of structure of the hinge mechanism 15B in the expansion joint apparatus for walls concerning the 3rd Embodiment of this invention, The part is decomposed | disassembled and shown. The wall expansion joint device according to the present embodiment is the rest of the configuration except that the hinge mechanism 15B is used instead of the hinge mechanism 15 in the wall expansion joint device 1 according to the first embodiment. Since it is comprised similarly to the expansion joint apparatus 1 for walls which concerns on 1st Embodiment, the same referential mark is attached | subjected about the same structure and the overlapping description is abbreviate | omitted. Note that the hinge mechanism 15B according to the present embodiment may be employed in place of the hinge mechanism 35.

  The hinge mechanism 15B is connected to one side edge portion of the first support portion 10 on the opposite side of the bent portion 12 from the side connected to the fixed portion 11, and is provided with a plurality of first portions provided with a gap S1 therebetween in the vertical direction Z. The cylindrical piece 13B is configured to include the hinge shaft 16B and the hinge pieces 17 in the same number as the number of the gaps S1.

  Each first cylindrical piece 13B is formed with through holes 13c having the same diameter along the vertical direction Z so that the central axes coincide with each other, and the central axes of these through holes 13c correspond to the axis J1. To do. Further, for each gap S1, the first cylindrical pieces 13B on both sides of the gap S1 have screw holes into which the screws 16Bb of the hinge shaft 16B can be screwed along one radial direction of the central axis of the through hole 13c. Is formed. Here, the distance in the vertical direction Z between the two screw holes sandwiching the gap S1 is L7.

  Each hinge shaft 16B is constituted by a columnar rod-shaped member 16Ba and two screws 16Bb. The rod-shaped member 16Ba is longer than the dimension L1 in the vertical direction Z of the gap S1, has a dimension L8 slightly shorter than the distance L7 in the vertical direction Z between the two screw holes that sandwich the gap S1, and the through hole 13c. , 17c so that it can be inserted. Further, the screw 16Bb has a shaft portion that can be screwed into the screw hole, and the shaft portion is arranged so as to cross the through hole 13c when the screw 16Bb is fastened to the first cylindrical piece 13B. The dimension is selected.

  As shown in FIG. 13, the hinge mechanism 15B has a second cylindrical piece 17b of each hinge piece 17 disposed between the first cylindrical pieces 13B, and the rod-like member 16Ba is connected to the first cylinder for each gap S1. The first cylindrical piece 13B, the second cylindrical piece 17b, and the first cylindrical piece 13B are inserted into the through holes 13c and 17c in this order and screwed into two screw holes that sandwich the gap S1. The rod-shaped member 16Ba is prevented from coming off by the shaft portion of the screw 16Bb fastened to 13A.

  Thereby, each hinge piece 17 will be connected with the 1st support part 10 so that rotation around the axis line J1 is possible. Therefore, each hinge piece 17 is fixed to the first joint plate 20 via the first guide member 51 and the like, so that the first joint plate 20 is rotatable about the axis J1. Supported by

  Also in the present embodiment, similarly to the first embodiment, the hinge mechanism 15B is configured such that the dimension L2 in the vertical direction Z of the second cylindrical piece 17b in each hinge piece 17 is equal to the gap S1 between the first cylindrical pieces 13B. It is selected and configured to be shorter than the dimension L1 in the vertical direction Z. Accordingly, the first joint plate 20 supported by the first support portion 10 is allowed to be displaced in the vertical direction Z by a distance corresponding to the difference between the dimension L1 and the dimension L2.

  Even in the wall expansion joint device according to the third embodiment in which the hinge mechanism 15B that connects the first support portion 10 and the first joint plate 20 so as to be rotatable around the axis J1 is configured as described above, The same effect as the first embodiment is obtained.

(Fourth embodiment)
FIG. 14: is a figure which shows a part of structure of the hinge mechanism 15C in the expansion joint apparatus for walls which concerns on the 4th Embodiment of this invention, The part is decomposed | disassembled and shown. The wall expansion joint device according to the present embodiment is the rest of the configuration except that the hinge mechanism 15C is used instead of the hinge mechanism 15 in the wall expansion joint device 1 according to the first embodiment. Since it is comprised similarly to the expansion joint apparatus 1 for walls which concerns on 1st Embodiment, the same referential mark is attached | subjected about the same structure and the overlapping description is abbreviate | omitted. Note that the hinge mechanism 15 </ b> C according to the present embodiment may be employed in place of the hinge mechanism 35.

  The hinge mechanism 15 </ b> C is connected to one side edge portion of the first support portion 10 opposite to the side connected to the fixing portion 11 in the bent portion 12, and is provided with a plurality of shaft fixing portions provided at intervals in the vertical direction Z. 13 and the same number of hinge fixing parts 13 as the number of hinge shafts 16C and hinge pieces 17.

  Each hinge shaft 16C is composed of a cylindrical rod-shaped member 16Ca and two pins 16Cb. The rod-shaped member 16Ca has a dimension L10 longer than the distance L9 in the vertical direction Z between the upper end surface of the first cylindrical piece 13a and the lower end surface of the first cylindrical piece 13b in the shaft fixing portion 13, and penetrates the rod-shaped member 16Ca. The holes 13c and 17c are formed to be insertable. Further, at both ends of the rod-like member 16Ca, through holes into which the pins 16Cb can be inserted are formed along one radial direction with a gap slightly larger than the distance L9. The pin 16Cb is formed to have a length that can penetrate the through hole.

  As shown in FIG. 14, the hinge mechanism 15C is provided with the second cylindrical pieces 17b of the hinge pieces 17 between the first cylindrical pieces 13a and 13b, and the rod-like member 16Ca is provided for each gap S1. The first cylindrical piece 13a, the second cylindrical piece 17b, and the first cylindrical piece 13b are inserted into the through holes 13c and 17c in this order, and the pin 16Cb is inserted into the through holes formed at both ends of the rod-like member 16Ca. Each is configured by inserting.

  Thereby, each hinge piece 17 will be connected with the 1st support part 10 so that rotation around the axis line J1 is possible. Therefore, each hinge piece 17 is fixed to the first joint plate 20 via the first guide member 51 and the like, so that the first joint plate 20 is rotatable about the axis J1. Supported by

  Also in this embodiment, similarly to the first embodiment, the hinge mechanism 15C is configured such that the dimension L2 in the vertical direction Z of the second cylindrical piece 17b in each hinge piece 17 is equal to the gap between the first cylindrical pieces 13a and 13b. It is selected and configured to be shorter than the dimension L1 in the vertical direction Z of S1. Accordingly, the first joint plate 20 supported by the first support portion 10 is allowed to be displaced in the vertical direction Z by a distance corresponding to the difference between the dimension L1 and the dimension L2.

  Even in the wall expansion joint device according to the third embodiment in which the hinge mechanism 15B that connects the first support portion 10 and the first joint plate 20 so as to be rotatable around the axis J1 is configured as described above, The same effect as the first embodiment is obtained.

(Fifth embodiment)
FIG. 15 is a view showing a configuration of the second expansion / contraction mechanism 60D in the wall expansion joint device according to the fifth embodiment of the present invention, and corresponds to a cross-sectional view taken along the cutting plane line IX-IX in FIG. FIG. The wall expansion joint device according to the present embodiment is the remaining, except that the second expansion mechanism 60D is employed instead of the second expansion mechanism 60 in the wall expansion joint device 1 according to the first embodiment. About a structure, since it is comprised similarly to the expansion joint apparatus 1 for walls which concerns on 1st Embodiment, the same referential mark is attached | subjected about the same structure and the overlapping description is abbreviate | omitted.

  The second telescopic mechanism 60D according to the present embodiment is the remaining configuration except that the second moving member 62D is employed instead of the second moving member 62 in the second telescopic mechanism 60 according to the first embodiment. Since the configuration is the same as that of the second expansion and contraction mechanism 60 according to the first embodiment, the same reference numerals are assigned to the same configurations, and redundant descriptions are omitted.

  The second moving member 62 according to the first embodiment has a bottom that is cut out to a predetermined length from a long metal shape cut out from the first guide member 51 and the first moving member 52. The second moving member 62D according to the present embodiment is realized by removing the wall portion 51a and the side walls 51c and 51d except for the protruding portions 51c1 and 51d1. This is realized by cutting out the member 51 and the first moving member 52 to a predetermined length from a metal member different from the metal member cut out.

  Specifically, the second moving member 62D has a rectangular flat plate shape, and extends vertically along the longitudinal direction u, and perpendicularly to one side from both side edge portions in the width direction w of the bottom wall portion 62Da. Plate-like side wall portions 62Db and 62Dc which are erected and extend along the longitudinal direction u, a groove portion 62Dd formed at the front end portion of the side wall portion 62Db, and an engagement portion 62De formed at the front end portion of the side wall portion 62Dc, The groove 62Dd is formed in the same manner as the groove 51e in the first guide member 51.

  On the other hand, the engaging part 62De has the same configuration 51f1 to 51f3 as the engaging part 51f in the second guide member 61, and when the engaging part 62De is engaged with the groove part 51e in the second guide member 61. In addition, a covering portion 62De1 that covers the bottom portion 51e3 of the groove portion 51e from the outside is provided. This prevents the second moving member 62 </ b> D from coming off the second guide member 61.

  Also in the wall expansion joint device according to the present embodiment, the first guide member 51, the first moving member 52, and the second guide are cut out to a predetermined length from one type of long metal profile. Since it uses as the member 61, compared with the case where a different shape material is manufactured separately, manufacturing cost can be suppressed as much as possible.

DESCRIPTION OF SYMBOLS 1 Wall expansion joint apparatus 3, 4 Wall body 5 Space | gap 10 1st support part 13 Shaft fixing | fixed part 15 Hinge mechanism 16 Hinge shaft 17 Hinge piece 20 1st joint plate 30 2nd support part 35 Hinge mechanism 40 2nd joint plate 50 1st telescopic mechanism 51 1st guide member 51a Bottom wall part 51b Upper wall part 51c, 51d Side wall part 51c1, 51d1 Projection part 51e Groove part 51e1 Guide groove 51f Engagement part 52 1st moving member 53 Opening closing part 60 2nd telescopic mechanism 61 2nd guide member 62 2nd moving member

Claims (5)

A first support portion fixed to a wall surface facing the gap in one of the two wall bodies adjacent to each other with a gap in the horizontal width direction;
A second support portion fixed to a wall surface facing the gap in the other wall body of the two wall bodies;
The thickness direction is orthogonal to the vertical direction and is supported by the first support portion so as to be rotatable around a first axis extending in the vertical direction so that the movable range does not interfere with the second support portion. A first joint plate provided in
The thickness direction is orthogonal to the vertical direction and is supported by the second support portion so as to be rotatable about a second axis extending in the vertical direction so that the movable range does not interfere with the first support portion. And when the direction perpendicular to each of the width direction and the vertical direction is a front-rear direction, a second joint plate provided so that a rear surface thereof faces the front surface of the first joint plate;
A first telescopic mechanism installed on the rear surface of the first joint plate,
A first guide member that is fixed to the rear surface and is formed with a guide groove extending along a first plate width direction parallel to the rear surface and perpendicular to the vertical direction;
A first telescopic mechanism having an engaging portion that engages with the guide groove and having a first moving member held by the first guide member so as to be slidable in the first plate width direction;
A second telescopic mechanism installed on the rear surface of the second joint plate,
A second guide member that is fixed to the rear surface and is formed with a guide groove extending along a second plate width direction parallel to the rear surface and perpendicular to the vertical direction;
An engagement portion that engages with the guide groove is held by the second guide member so as to be slidable in the second plate width direction, and is connected to the first moving member. A second telescopic mechanism having a moving member,
In at least one of the first and second expansion / contraction mechanisms, the guide member and the moving member belonging to the expansion / contraction device for walls have the same cross section. An axis line corresponding to at least one of the first and second support portions and one of the first and second joint plates supported by the one support portion. Further including a hinge mechanism that is pivotally connected around,
The hinge mechanism is
A plurality of shaft fixing portions provided on one side of the one support portion and the one joint plate and spaced apart from each other along the corresponding axis, wherein each shaft fixing portion has a gap in the vertical direction. And a plurality of shaft fixing portions having a pair of first cylindrical pieces each having a through hole coaxial with the corresponding axis,
On the other side of the one support portion and the one joint plate, each of the shaft fixing portions is provided so as to be disposed between a pair of cylindrical pieces, and a through hole coaxial with the corresponding axis is formed. A plurality of second cylindrical pieces,
A plurality of hinge shafts provided for each of the shaft fixing portions and capable of being inserted into the through holes of the first and second cylindrical pieces, and disposed between a pair of cylindrical pieces in the corresponding shaft fixing portions. A plurality of hinge shafts fixed to the shaft fixing portion in a state of being inserted through the through holes of the second cylindrical piece,
2. The wall according to claim 1, wherein the vertical dimension of the second cylindrical piece is shorter than the vertical dimension of the gap between the pair of cylindrical pieces in the corresponding shaft fixing portion. Expansion joint device.   Above the shaft fixing portion disposed on the lower side of the two shaft fixing portions adjacent in the vertical direction, the length is longer than the longitudinal dimension of the hinge shaft corresponding to the shaft fixing portion along the corresponding axis line. The wall expansion joint device according to claim 2, wherein a scale gap is formed. An axis line corresponding to at least one of the first and second support portions and one of the first and second joint plates supported by the one support portion. Further including a hinge mechanism that is pivotally connected around,
The hinge mechanism is
A plurality of holes are formed on one side of the one support part and the one joint plate along the corresponding axis so as to be spaced apart from each other, and a through hole coaxial with the corresponding axis is formed. A first tubular piece;
A plurality of holes formed on the other side of the one support portion and the one joint plate so as to be disposed between the plurality of first cylindrical pieces, and having a through hole coaxial with the corresponding axis. A second cylindrical piece of
A hinge shaft that can be inserted into the through holes of the first and second cylindrical pieces, and is a first shaft that is disposed at the uppermost position while being inserted through the through holes of the plurality of second cylindrical pieces. A hinge shaft fixed to the cylindrical piece and the first cylindrical piece arranged at the lowest position,
2. The wall expansion joint according to claim 1, wherein the vertical dimension of each of the second cylindrical pieces is shorter than the vertical dimension of the gap between the corresponding first cylindrical pieces. apparatus.   The urging means for urging the first moving member in a direction toward one wall body in the first plate width direction is further included. Expansion joint device for walls.

Images