JP5820739B2 - Wall expansion joint device - Google Patents

Description

  The present invention relates to a wall expansion joint device installed between inner walls facing a passage of two buildings adjacent to each other with a space in the horizontal direction.

  As a conventional technique of a wall expansion joint device, for example, a wall joint cover device described in Patent Document 1 can be cited. In this invention, the wall joint cover device is a joint cover formed by connecting two panel bodies with hinge members, and one end of the wall joint cover device is attached to the wall surface of one building so as to be rotatable around a vertical axis. A joint cover on which the roller is attached to the other end, a guide rail extending horizontally on the wall facing the joint space of one building, and one end of the joint cover around the vertical axis on the other end of the joint cover A support arm that is pivotally attached and has the other end slidably mounted on the guide rail, one end connected to the middle of the support arm, and the other end pivoted to the wall of one building A support arm that is freely attached, and a stopper arm that has one end attached to the support arm and the other end abutted against the joint cover are configured.

  The wall joint cover device having the above-described structure allows the relative displacement by bending the center part of the joint cover when the two buildings are relatively displaced in a direction close to each other due to an earthquake or the like. When the relative displacement is made in the direction away from the other, the other end of the joint cover is separated from the other building to allow the relative displacement, thereby covering the joint space.

JP 2011-17131 A

  However, in the prior art, since the joint cover is bent at the intermediate portion to allow relative displacement, the joint cover largely protrudes outward when allowing the relative displacement.

  From this, as the inner wall of the passage provided between the two buildings, when the conventional technique is used with the joint cover projecting direction toward the inside of the passage, the two buildings are relatively displaced in a direction close to each other. At this time, the joint cover protrudes into the passage, so that the effective area of the passage is greatly reduced and the passage is hindered.

  On the other hand, if the conventional technique is used as an inner wall facing the passage provided between the two buildings with the joint cover projecting direction toward the outside of the passage, the two buildings are in the directions close to each other. When the relative displacement occurs, the joint cover protrudes outward from the passage, resulting in a large opening at the intersection of the floor of the passage and the wall joint cover device, and a passerby inserts a foot into the opening. There is a risk that.

  Therefore, the prior art cannot be used as an inner wall facing a passage provided between two buildings.

  The objective of this invention is providing the expansion joint apparatus for walls which can be used suitably as an inner wall which faces the channel | path provided between two buildings.

According to the first aspect of the present invention, a first end is rotatably held around a vertical first axis on an inner wall surface facing a space in one of two adjacent buildings spaced apart in the horizontal direction. A cover body;
A second cover body whose one end is rotatably held around a vertical second axis on the inner wall surface facing the space in the other of the two buildings;
The other end portion of the first cover body is rotatably held around a third vertical axis, and the other end portion of the second cover body is rotated around a fourth vertical axis. A third cover body rotatably held;
First hinge means for rotatably connecting one end of the first cover body and the inner wall surface of the one building around the first axis;
Second hinge means for rotatably connecting one end of the second cover body and the inner wall surface of the other building around the second axis;
Third hinge means for connecting the other end portion of the first cover body and the one end portion of the third cover body so as to be rotatable around the third axis;
A fourth hinge means for connecting the other end of the second cover body and the other end of the third cover body so as to be rotatable about the fourth axis;
One end of the inner wall surface of the one building is pivotally held around a fifth axis that is closer to the other building than the first hinge means, and the inner wall surface of the other building The link is such that the other end is pivotably held around a vertical sixth axis at a position closer to the one building than the second hinge means, and the one end and the other end are close to and away from each other. Means,
Fifth hinge means for connecting one end portion of the link means and a portion of the inner wall surface of the one building closer to the other building than the first hinge means so as to be rotatable around the fifth axis. ,
Sixth hinge means for connecting the other end portion of the link means and the portion of the inner wall surface of the other building closer to the one building than the second hinge means so as to be rotatable about the sixth axis. When,
A first strip in which one end is coupled to an intermediate portion in the approaching and separating direction of the link means, and the other end is coupled to one end of the third cover body;
And a second rope having one end connected to an intermediate portion of the link means in the approaching and separating directions and the other end connected to the other end of the third cover body. The expansion joint device for walls.

  The present invention is characterized in that at least one of the first and second strips is provided with a length adjusting means for adjusting the length of at least one of the first and second strips.

  According to the present invention, in two buildings that are adjacent to each other with a gap in the horizontal direction, the first end face of the first cover body is vertical on the inner wall surface facing the space in one of the buildings. One end of the second cover body is rotatably held around the vertical second axis on the inner wall face that faces the space in either one of the two buildings. Is done. The other end portion of the first cover body is held at one end portion of the third cover body so as to be rotatable around a vertical third axis, and the other end portion of the second cover body is provided with the third cover body. The other end is rotatably held around a vertical fourth axis.

  One end portion of the first cover body and the inner wall surface of one building are connected to each other so as to be rotatable around the first axis by the first hinge means, and the one end portion of the second cover body and the inner wall surface of the other building are The second hinge means is pivotally connected around the second axis. Further, the other end portion of the first cover body and the one end portion of the third cover body are rotatably connected around the third axis by the third hinge means, and the other end portion of the second cover body and the first cover body are connected to each other. The other end of the three cover body is connected to the fourth axis by a fourth hinge means so as to be rotatable about the fourth axis.

  One end portion of the link means is rotatably held around a fifth axis on the inner wall surface of one building closer to the other building than the first hinge means. The other end portion of the link means is held so as to be rotatable around a vertical sixth axis at a portion of the inner wall surface closer to the one building than the second hinge means. One end portion and the other end portion of such a link means are close to and away from each other. One end portion of the link means and a portion of the inner wall surface of one building that is closer to the other building than the first hinge means are connected by the fifth hinge means so as to be rotatable around the fifth axis. The other end portion of the other building and the portion of the inner wall surface of the other building that is closer to the one building than the second hinge means are connected to be rotatable about the sixth axis by the sixth hinge means.

  One end portion of the first rope is connected to an intermediate portion of the link means in the approaching and separating directions, and the other end portion of the first rope is connected to one end portion of the third cover body. Moreover, the one end part of a 2nd strip is connected with the intermediate part of the direction of a proximity | contact and separation | separation of a link means, and the other end part of a 2nd strip is connected with the other end part of a 3rd cover body.

  When each building is relatively displaced in the approaching and separating directions and in the front-rear direction, the first to third cover bodies are first and second by means of the first and second ropes, each of which is connected to the intermediate part of the link means. The displacement exceeding the length of the second rope is prevented, and the excessive displacement of the first to third cover bodies in the direction separating from each building is limited, and the respective buildings are relative to each other in the direction of approaching / separating and the front-rear direction. Even if displaced, the relative displacement between the buildings is allowed within the length range of the first and second ropes, the space between the buildings is closed by the first to third cover bodies, and traffic is allowed to pass. It is possible to prevent the object from falling or entering.

  According to the invention, since at least one of the first and second strips is provided with the length adjusting means for adjusting the length of at least one of the first and second strips, the first and second strips are provided. The amount of displacement of the third cover body can be easily adjusted by adjusting the length of the rope.

1 is a horizontal sectional view of a wall expansion joint device 1 according to an embodiment of the present invention. It is the front view which looked at the expansion joint apparatus for walls 1 from the upper direction of FIG. It is a front view which abbreviate | omits and shows the 3rd cover body 12, the 1st rope 15, and the 2nd rope 16 from the expansion joint apparatus 1 for walls. It is a figure which expands and shows the central part vicinity of the link means 14 of FIG. It is a figure which expands and shows the 3rd hinge means 22 vicinity of FIG. It is a horizontal sectional view which shows operation | movement of the expansion joint apparatus for walls 1 when the buildings A and B are relatively displaced in the direction which approaches / separates. It is a horizontal sectional view showing operation of expansion joint device for walls 1 when buildings A and B are relatively displaced in the front-rear direction.

  FIG. 1 is a horizontal sectional view of a wall expansion joint device 1 according to an embodiment of the present invention. FIG. 2 is a front view of the wall expansion joint device 1 as viewed from above in FIG. FIG. 3 is a front view showing the third expansion body 12, the first rope 15 and the second rope 16 omitted from the wall expansion joint device 1;

  As shown in FIG. 1, a space 3 having a width C of 700 mm to 900 mm exists as a joint between two buildings A and B that are adjacent to each other with a space in the horizontal direction. The wall expansion joint device 1 of the present embodiment is provided in a passage 2 that connects an elevator hall of one building A and a passage of the other building B. In order to prevent rainwater or wind from entering the passage 2 from outside, the wall expansion joint device 1 according to the present embodiment is provided as an inner wall constituting the passage 2. The wall expansion joint device 1 functions as a part of the inner wall of the passage 2 and allows the space 3 to be closed while allowing relative displacement of the buildings A and B due to an earthquake or the like.

  The wall body 4 of the building A and the wall body 5 of the building B are opposed to each other through the space 3 in the first horizontal direction X which is the left-right direction in FIG. 1 and is perpendicular to the sheet of FIG. Opposite wall surfaces 4a and 5a extending in the vertical direction and internal wall surfaces 4b and 5b extending in the vertical direction Z facing the passage.

  The wall expansion joint device 1 of the present embodiment is installed so as to extend in the up-down direction Z direction between corners at which the opposing wall surfaces 4a, 5a and the inner wall surfaces 4b, 5b intersect at a substantially right angle. . Each wall body 4 and 5 consists of the concrete structure which comprises the frame of the outer wall of each building A and B. As shown in FIG.

  Here, the vertical direction Z means that errors in the vertical direction inevitably occur on the opposing wall surfaces 4a and 5a and the inner wall surfaces 4b and 5b of the walls 4 and 5 due to construction errors of the buildings A and B, and the like. Therefore, the vertical direction and the substantially vertical direction that can be regarded as a substantially vertical direction are included, and the same applies to the first horizontal direction X and the second horizontal direction Y orthogonal to the first horizontal direction X. A substantially horizontal direction that can be regarded as a substantially horizontal direction is included.

  In the following description, the first horizontal direction X may be referred to as the approach / separation direction, and the second horizontal direction Y may be referred to as the front-rear direction.

  The wall expansion joint device 1 includes a first cover body 10, a second cover body 11, and a third cover body 12. One end of the first cover body 10 is rotatably held around the vertical first axis L1 on the inner wall surface 4b facing the elevator hall which is a passage of the building A. One end of the second cover body 11 is held on the inner wall surface 5b facing the passage of the building B so as to be rotatable around the vertical second axis L2. The third cover body 12 is held at the other end portion of the first cover body 10 at one end portion thereof so as to be rotatable around the vertical third axis L <b> 3, and at the other end portion of the second cover body 11. The end portion is held so as to be rotatable around a vertical fourth axis L4.

  The wall expansion joint device 1 includes a first hinge means 20, a second hinge means 21, a third hinge means 22, a fourth hinge means 23, a fifth hinge means 24, and a sixth hinge means 25. In addition.

  One end of a plurality of brackets 40 having a substantially L-shaped cross section extending in the vertical direction Z along the inner wall surface 4b is fixed to the inner wall surface 4b by an anchor body realized by, for example, an all-in anchor. A bracket 41 having a substantially L-shaped cross section extending in the vertical direction Z along the inner wall surface 4 b is fixed to the other end of the bracket 40 by screws according to each bracket 40.

  The first hinge means 20 is provided with a fixed piece 20a fixed to the bracket 41 with a bolt, and a first movable member provided so as to be rotatable about the first axis L1 and fixed to one end of the first cover body 10 with a bolt. It includes a piece 20b, and a hinge pin 20c that connects the fixed piece 20a and the first movable piece 20b. The first hinge means 20 is provided in each bracket 41, and holds one end of the first cover body 10 so as to be rotatable around the first axis L1.

  The first cover body 10 is a plate-like panel member. Details of the first cover body 10 will be described later. One end of the first cover body 10 in the width direction is fixed to the first movable piece 20b of each first hinge means 20 with a bolt. As a result, the first cover body 10 is rotatably fixed to the inner wall surface 4b with the first axis L1 as the rotation center axis.

  One end of a plurality of brackets 42 having a substantially L-shaped cross section extending in the vertical direction Z along the inner wall surface 5b is fixed to the inner wall surface 5b by an anchor body realized by, for example, an all-in anchor. A bracket 43 having a substantially L-shaped cross section extending in the vertical direction Z along the inner wall surface 5 b is fixed to the other end of the bracket 42 according to each bracket 42.

  The second hinge means 21 includes a fixed piece 21a that is fixed to the bracket 43, a second movable piece 21b that is rotatably provided around the second axis L2 and is connected to one end of the second cover body 11, A hinge pin 21c that connects the fixed piece 21a and the second movable piece 21b is configured. The second hinge means 21 is provided on each bracket 43, and holds one end of the second cover body 11 so as to be rotatable around the second axis L2.

  The second cover body 11 is a plate-like panel member. Details of the second cover body 11 will be described later. One end of the second cover body 11 in the width direction is fixed to the second movable piece 21b of each second hinge means 21 with a bolt. As a result, the second cover body 11 is rotatably fixed to the inner wall surface 5b with the second axis L2 as the rotation center axis.

  The third hinge means 22 includes a third movable piece 22a provided to be rotatable about the third axis L3, a fourth movable piece 22b provided to be rotatable about the third axis L3, and a third movable piece. A hinge pin 22c that connects the piece 22a and the fourth movable piece 22b is configured. The third hinge means 22 is provided corresponding to each first hinge means 20. The third movable piece 22a is fixed to the other end portion of the first cover body 10 with a bolt. Thus, the first cover body 10 is rotatably fixed to the third hinge means 22 with the third axis L3 as the rotation center axis.

  The fourth hinge means 23 includes a fifth movable piece 23a provided to be rotatable about the fourth axis L4, a sixth movable piece 23b provided to be rotatable about the fourth axis L4, and a fifth movable piece. A hinge pin 23c that connects the piece 23a and the sixth movable piece 23b is configured. The fourth hinge means 23 is provided corresponding to each second hinge means 21. The fifth movable piece 23a is fixed to the other end portion of the second cover body 11 with a bolt. As a result, the second cover body 11 is rotatably fixed to the fourth hinge means 23 with the fourth axis L4 as the rotation center axis.

  The third cover body 12 is a plate-like panel member. Details of the third cover body 12 will be described later. One end of the third cover body 12 in the width direction is fixed to the fourth movable piece 22b of each third hinge means 22 with a bolt. Thus, the third cover body 12 is rotatably fixed to the third hinge means 22 with the third axis L3 as the rotation center axis. The other end of the third cover body 12 in the width direction is fixed to the sixth movable piece 23b of each fourth hinge means 23 with a bolt. Accordingly, the third cover body 12 is rotatably fixed to the fourth hinge means 23 with the fourth axis L4 as the rotation center axis.

  A fifth hinge means 24 is provided at a corner portion that is an intersection of the facing wall surface 4a and the inner wall surface 4b of the building A. The fifth hinge means 24 includes a seventh movable piece 24a provided so as to be rotatable around a vertical fifth axis L5, a fixed piece 24b fixed to the inner wall surface 4b, a seventh movable piece 24a and a fixed piece 24b. And a hinge pin 24c for connecting the two. A plurality of fifth hinge means 24 are provided at intervals in the vertical direction Z.

  The fixed piece 24b is formed in a plate shape. The fixing piece 24b is fixed to the inner wall surface 4b by an anchor body realized by, for example, an all-in anchor. The seventh movable piece 24a is formed in a plate shape. A link mounting member 50 having a substantially U-shaped cross section extending in the up-down direction Z is fixed to the seventh movable piece 24a with a bolt. Thereby, the link attachment member 50 is attached to the inner wall surface 4b so as to be rotatable around the fifth axis L5.

  Sixth hinge means 25 is provided at a corner portion that is an intersection of the opposing wall surface 5a and the inner wall surface 5b of the building B. The sixth hinge means 25 includes an eighth movable piece 25a provided to be rotatable around a vertical sixth axis L6, a fixed piece 25b fixed to the inner wall surface 5b, an eighth movable piece 25a, and a fixed piece 25b. And a hinge pin 25c for connecting the two. A plurality of sixth hinge means 25 are provided at intervals in the vertical direction Z.

  The fixed piece 25b is formed in a plate shape. The fixing piece 25b is fixed to the inner wall surface 5b by an anchor body realized by, for example, an all-in anchor. The eighth movable piece 25a is formed in a plate shape. A link mounting member 51 having a substantially U-shaped cross section extending in the vertical direction Z is fixed to the eighth movable piece 25a with a bolt. Thereby, the link attachment member 51 is attached to the inner wall surface 5b so as to be rotatable around the sixth axis L6.

  The wall expansion joint device 1 further includes link means 14. The link means 14 includes a plurality of link members 14a and a plurality of link pins 14b that pivotally support each link member 14a. The link member 14a is realized by, for example, a rectangular tubular structural steel material or a structural steel material having a C-shaped cross section. The link pin 14b is realized by a set of bolts and nuts.

  One end of the link means 14 is rotatably attached to the link attachment member 50 by a link pin 14b. The other end of the link means 14 is rotatably attached to the link attachment member 51 by a link pin 14b. Therefore, the link means 14 is rotatably attached to the link attachment members 50 and 51. Such link means 14 constitutes a pantograph-like link mechanism, and is provided between the link attachment members 50 and 51 so as to be extendable and contractible. As shown in FIG. 3, a plurality of (three in the present embodiment) link means 14 may be provided at intervals in the vertical direction Z. In this case, the structure of each link means 14 is the same.

  In the present embodiment, the fifth hinge means 24 that holds one end of the link means 14 is attached to a corner corner that is an intersection of the opposing wall surface 4a and the inner wall surface 4b of the building A, but is not limited thereto. Instead, it may be attached to a part closer to the building B than the first hinge means 20. For example, you may attach the 5th hinge means 24 to the opposing wall surface 4a.

  In the present embodiment, the sixth hinge means 25 that holds the other end of the link means 14 is attached to a corner portion that is an intersection of the opposing wall surface 5a and the inner wall surface 5b of the building B. Not only that, it is only necessary that the second hinge means 21 be attached to a part closer to the building A. For example, the sixth hinge means 25 may be attached to the opposing wall surface 5a.

  4 is an enlarged view of the vicinity of the central portion of the link means 14 of FIG. 1, and FIG. 5 is an enlarged view of the vicinity of the third hinge means 22 of FIG.

  A rope attachment member 55 is attached to an intermediate portion between one end portion and the other end portion of the link means 14, in other words, an intermediate portion in a direction in which the link means 14 approaches and separates. In the present embodiment, the rope attachment member 55 is attached to the link pin 14 b disposed in the center of the link means 14. The rope attachment member 55 is a long material having a substantially U-shaped cross section, and is attached extending in the vertical direction Z. In the present embodiment, the rope attachment member 55 is fixed to the link pin 14b disposed at the center of each link means 14 by a bolt, and extends in the vertical direction Z over the same length as the longitudinal dimension of the third cover body 12. Extend. Attachment holes 56 and 57 for attaching one end portions of a first rope 15 and a second rope 16 to be described later are formed on both sides in the width direction of the rope attachment member 55.

  Referring again to FIG. 1, the fourth movable piece 22 b of the third hinge means 22 is provided with a cable attachment member 60 for attaching the other end of the first cable 15 to be described later. The rope attachment member 60 is formed in a substantially L-shaped cross section, and has an attachment hole 60 a for attaching the other end of the first rope 15. The rope attachment member 60 is fixed to the fourth movable piece 22b with screws. Therefore, the rope attachment member 60 is provided so as to be rotatable around the third axis L3 together with the fourth movable piece 22b.

  The sixth movable piece 23b of the fourth hinge means 23 is provided with a rope attachment member 61 for attaching the other end of the second rope 16 described later. The rope attachment member 61 is formed in a substantially L-shaped cross section, and has an attachment hole 61 a for attaching the other end of the second rope 15. The rope attachment member 61 is fixed to the sixth movable piece 23b with screws. Therefore, the rope attachment member 61 is provided so as to be rotatable around the fourth axis L4 together with the sixth movable piece 23b.

  The wall expansion joint device 1 further includes a first rope 15 and a second rope 16. One end of the first rope 15 is connected to a portion where the attachment hole 56 of the rope attachment member 55 is formed, and the other end is connected to a portion where the attachment hole 60 a of the rope attachment member 60 is formed. . One end of the second rope 16 is connected to a portion where the attachment hole 57 of the rope attachment member 55 is formed, and the other end is connected to a portion where the attachment hole 61a of the rope attachment member 61 is formed. .

  Moreover, in this embodiment, the 1st rope 15 is implement | achieved by the stainless steel wire 15a and the stainless steel wire 15b. At the end of each wire 15a, 15b, a turnbuckle 70 is provided for connecting each wire 15a, 15b. One end of the wire 15 a is connected to a portion where the attachment hole 56 is formed, and the other end is connected to the attachment portion 70 a on one side of the turnbuckle 70. One end of the wire 15 b is connected to a portion where the attachment hole 60 a is formed, and the other end is connected to the attachment portion 70 b on the other side of the turnbuckle 70. The turnbuckle 70 is configured such that the attachment portions 70a and 70b can be individually adjusted in directions close to or away from each other.

  In the present embodiment, the second rope 16 is realized by a stainless wire 16a and a stainless wire 16b. A turnbuckle 71 is provided at the end of each wire 16a, 16b to connect each wire 16a, 16b. One end of the wire 16 a is connected to the portion where the attachment hole 57 is formed, and the other end is connected to the attachment portion 71 a on one side of the turnbuckle 71. One end of the wire 16 b is connected to a portion where the attachment hole 61 a is formed, and the other end is connected to the attachment portion 70 b on the other side of the turnbuckle 71.

  That is, the first rope 15 has one end connected to a portion where the attachment hole 56 of the rope attachment member 55 is formed and the other end provided to the one end of the third cover body 12. It is connected with the part in which the mounting hole 60a is formed. The second rope 16 has one end connected to a portion where the attachment hole 57 of the rope attachment member 55 is formed and the other end provided to the other end of the third cover body 12. It is connected with the part in which the attachment hole 61a is formed.

  Since the first rope 15 has one end connected to the rope attachment member 55 and the other end connected to the rope attachment member 60, the movement of the rope attachment member 60 around the first axis L1 is as follows. It is limited to the length of the first rope 15 or less. That is, the first strip 15 limits the amount of angular displacement around the third axis L3 of the fourth movable piece 22b according to its length. Since one end of the second rope 16 is connected to the rope attachment member 55 and the other end is connected to the rope attachment member 61, the movement of the rope attachment member 61 around the fourth axis L4 is attached. The length of a straight line connecting the hole 57 and the mounting hole 61a is limited to a position where the length is shorter than the length of the second rope 16. That is, the second strip 16 limits the amount of angular displacement around the fourth axis L4 of the fifth movable piece 23a according to its length. Therefore, the angular displacement amount around the third axis L3 and the angular displacement amount around the fourth axis L4 of the third cover body 12 are limited by the first and second strips 15 and 16.

  The wall expansion joint device 1 includes a bracket 40, a first hinge means 20, a first cover body 10, a third hinge means 22, a second cover body 12, a fourth hinge means 23, and a second wall between the buildings A and B. The cover body 11, the second hinge means 21, and the bracket 42 constitute a link.

  Since the third hinge means 22 and the fourth hinge means 23 serving as the nodes of the link are respectively bound by the first and second ropes 15 and 16, the buildings A and B are in the proximity / separation direction and / or the front-rear direction. Even if relative displacement occurs, the third hinge means 22 and the fourth hinge means 23 are always in tension from the central position in the approach / separation direction between the buildings A and B by the link means 14. The outward movement beyond the region having the radius of the two strips 15 and 16 is prevented.

  The turnbuckles 70 and 71 are configured such that the attachment portions 70a and 70b and the attachment portions 71a and 71b can be individually adjusted in a direction approaching or separating from each other. The first rope 15 and the second rope 16 are provided such that their lengths can be adjusted by adjusting the turnbuckles 70 and 71, respectively. The turnbuckle 70 is a means for adjusting the first rope 15. The turnbuckle 71 is a means for adjusting the second rope 16.

  A plurality of the first ropes 15 and the second ropes 16 may be provided according to the link means 14. In the present embodiment, since three link means 14 are provided, a total of three first ropes 15 and second ropes 16 are provided corresponding to each link means 14. However, the first rope 15 and the second rope 16 do not necessarily need to be provided corresponding to the number of the link means 14, and at least one may be provided in the wall expansion joint device 1.

  The detail of the 1st-3rd cover bodies 10, 11, and 12 of this embodiment is demonstrated. The first cover body 10 and the second cover body 11 have the same structure, and the third cover body 12 has a different structure from the first cover body 10 and the second cover body 11 only in the width direction. Are formed identically. Therefore, with reference to FIG. 2 and FIG. 5, the 3rd cover body 12 is demonstrated and description of the 1st cover body 10 and the 2nd cover body 11 is abbreviate | omitted.

  The third cover body 12 includes a pair of vertical frames 80 having a substantially L-shaped cross section perpendicular to the longitudinal direction, and a horizontal frame 81 disposed between the vertical frames 80 and having a substantially L-shaped cross section perpendicular to the longitudinal direction; A decorative plate 82 attached to the front surface of the frame formed by the vertical frame 80 and the horizontal frame 81, and an auxiliary member 83 provided on the back side of the decorative plate 82 and having a substantially concave cross section perpendicular to the longitudinal direction. Consists of including.

  The vertical frame 80 is provided such that one end faces each other and the extending direction of the other end is parallel. A plurality of horizontal frames 81 are attached to the vertical frame 80 thus provided at intervals in the vertical direction Z to form a frame. An auxiliary member 83 is provided along the vertical frame 80 inside the frame. The auxiliary member 83 is fixed to the vertical frame 80 with screws, and reinforces the vertical frame 80.

  In the present embodiment, the decorative plate 82 includes a first decorative plate 85 and a second decorative plate 86. The 1st decorative board 85 is implement | achieved by the synthetic resin plate-shaped body which has translucency, and is implement | achieved by the decorative panel made from a polycarbonate in this embodiment. Each end of the first decorative plate 85 in the width direction is fixed to the auxiliary member 83 with screws. A second decorative plate 86 is attached to the surface of the first decorative plate 85 opposite to the surface facing the auxiliary member 83 via a spacer 87. In the present embodiment, the second decorative plate 86 is realized by the same member as the first decorative plate 85. However, you may implement | achieve the 1st decorative board 85 and the 2nd decorative board 86 by a different member.

  In the initial state, the first cover body 10 is provided such that the width direction is parallel to the second horizontal direction Y. The second cover body 11 is provided so that the width direction is parallel to the second horizontal direction Y, in other words, parallel to the width direction of the first cover body 10. The third cover body 12 is provided such that the width direction is parallel to the first horizontal direction X.

  The first rope 15 and the second rope 16 are provided with the turnbuckles 70, which are adjusting means, so that the first cover body 10, the second cover body 11, and the third cover body 12 can maintain the state described above. The length is adjusted by 71 and is provided in a tensioned state. In the wall expansion joint device 1 thus provided, the first to third cover bodies 10, 11, and 12 are provided in a substantially inverted U shape when viewed from the vertical direction Z, and the passage 3 passes through the space 3. Close from the side.

  As shown in FIGS. 2 and 3, below the wall expansion joint device 1, there is provided a floor expansion joint device 100 that maintains the space 3 closed on the floor surface. Even if the buildings A and B are relatively displaced in the approach / separation direction and the front-rear direction, the floor expansion joint device 100 follows this and maintains the space 3 in a closed state.

  In the present embodiment, lighting means 90 is attached to the inner wall surface 4b of the building A and the inner wall surface 5b of the building B. The illumination unit 90 irradiates illumination light into the passage 2. Since the 1st-3rd cover bodies 10, 11, and 12 are comprised including the 1st decorative board 85 and the 2nd decorative board 86 which have translucency, the illumination light irradiated from the illumination means 90 is 1st. The light passes through the first to third cover bodies 10, 11 and 12 and is guided into the passage 2. Furthermore, the illumination means 91 is provided in the surface part which faces the 3rd cover body 12 of the rope attachment member 55. FIG. The illumination means 91 irradiates illumination light toward the inside of the passage 2.

  In the present embodiment, the first rope 15 and the second rope 16 are provided at the same height as the horizontal frame 81 of the third cover body 12 in the vertical direction Z. As a result, the first strip 15 and the second strip 16 overlap the horizontal frame 81 of the third cover body 12 when viewed from the passage 2 side, and cannot be viewed from the passage 2 side. Therefore, even when the illumination means 90 and 91 irradiate the illumination light toward the first to third cover bodies 10, 11, and 12, the shadows of the first and first strips 16 are projected on the passage 2 side. Is prevented, and the aesthetics of the wall expansion joint device 1 are improved.

  In the link means 14, the link pin 14 b at the center is provided at the same height as the horizontal frame 81 of the third cover body 12 in the vertical direction Z. Thereby, the height from the floor surface in the vertical direction Z of the first rope 15 and the second rope 16 and the height from the floor surface in the vertical direction Z of the link pin 14b arranged in the center of the link means 14 are as follows. It will be the same.

  FIG. 6 is a horizontal sectional view showing the operation of the wall expansion joint device 1 when the buildings A and B are relatively displaced in the direction of approaching / separating. FIG. 6A shows the state of the wall expansion joint device 1 when the buildings A and B are relatively displaced in the direction away from each other, and FIG. 6B shows the relative displacement in the direction in which the buildings A and B are close to each other. The state of the expansion joint apparatus 1 for walls when doing is shown.

  In the wall expansion joint device 1 of the present embodiment described above, when the buildings A and B are relatively displaced in a direction away from each other, for example, due to a sudden earthquake, as shown in FIG. It extends following the displacement of the buildings A and B, and allows the displacement of the buildings A and B in the direction away from each other. Since the link means 14 is realized by a pantograph mechanism, the rope mounting member 55 provided at the center between both ends of the link means 14 is arranged on the virtual horizontal plane parallel to the paper surface of FIG. Arranged at the center of a virtual straight line connecting the fifth axis L5 and the sixth axis L6 of the fifth and sixth hinge means 24, 25 connecting each end to the inner wall surfaces 4b, 5b of the buildings A, B, respectively. .

  In the wall expansion joint device 1, one end portions of the first and second ropes 15 and 16 are connected to the rope attachment member 55, so the third axis L 3 and the fourth axis of the third cover body 12. The displacement around L4 is restricted, and accordingly, the displacement around the third axis L3 and the fourth axis L4 of the first and second cover bodies 10, 11 is restricted.

  As a result, the first and second cover bodies 10 and 11 on both sides of the third cover body 12 connect the first axis L1 of the first hinge means 20 that connects one building A and one end of the first cover body 10 to each other. , And the second axis L2 of the second hinge means 21 connecting the other building B and one end of the second cover body 11 is angularly displaced in a direction in which the other ends are close to each other, with the second axis L2 as the rotation center. . Further, the third cover body 12 is displaced in the direction approaching the link means 14 while being maintained at the central position between the buildings A and B by the first rope 15 and the second rope 16.

  As a result, the wall expansion joint device 1 can prevent the third cover body 12 from greatly projecting toward the passage 2 side, and the first to third cover bodies 10-12 to the buildings A and B can be prevented. Interference can be prevented. Therefore, the expansion joint device 1 for walls can maintain the state in which the space 3 between the buildings A and B is covered from the passage 2 side while allowing the displacement of the buildings A and B in the separating direction. it can.

  Further, when the buildings A and B are relatively displaced in the direction in which they are close to each other, as shown in FIG. 6 (b), the link means 14 is compressed to allow relative displacement in the direction in which the buildings A and B are close to each other. . Since the link means 14 is realized by the pantograph mechanism as described above, the rope attachment member 55 provided at the center between the both end portions of the link means 14 is in a virtual horizontal plane parallel to the paper surface of FIG. It is arranged at the center of a virtual straight line connecting the fifth axis L5 of the fifth hinge means 24 and the sixth axis L6 of the sixth hinge means 25.

  In the wall expansion joint device 1, one end portions of the first and second ropes 15, 16 are connected to the rope attachment member 55, so that the third axis L 3 and the fourth L 4 around the third cover body 12. Accordingly, the displacement of the first and second cover bodies 10 and 11 around the third axis L3 and the fourth axis L4 is limited.

  As a result, the first and second cover bodies 10 and 11 on both sides of the third cover body 12 connect the first axis L1 of the first hinge means 20 that connects one building A and one end of the first cover body 10 to each other. , And the second axis L2 of the second hinge means 21 connecting the other building B and one end of the second cover body 11 is angularly displaced in a direction in which the other ends are separated from each other. . Further, the third cover body 12 is displaced in the direction approaching the link means 14 while being maintained at the central position between the buildings A and B by the first rope 15 and the second rope 16.

  As a result, the wall expansion joint device 1 can prevent the third cover body 12 from greatly projecting toward the passage 2 side, and the first to third cover bodies 10-12 to the buildings A and B can be prevented. Interference can be prevented. Therefore, the expansion joint device 1 for walls can maintain the state in which the space 3 between the buildings A and B is covered from the passage 2 side while allowing the displacement of the buildings A and B in the separating direction. it can.

  FIG. 7 is a horizontal sectional view showing the operation of the wall expansion joint device 1 when the buildings A and B are relatively displaced in the front-rear direction. FIG. 7A shows the state of the expansion joint device for a wall when the other building B is relatively displaced forward with respect to one building A, and FIG. The state of the expansion joint apparatus for walls when the building B is relatively displaced rearward is shown.

  In the expansion joint device 1 for a wall according to the present embodiment described above, when the buildings A and B are displaced relative to each other in the front-rear direction, for example, one building A forward due to a sudden earthquake, for example, FIG. As shown in a), the link means 14 follows the displacement of the building B and extends while being angularly displaced, and allows the building B to move forward.

  Since the link means 14 is realized by a pantograph mechanism, the rope mounting member 55 provided at the center between both ends of the link means 14 is arranged on the virtual horizontal plane parallel to the paper surface of FIG. It arrange | positions in the center of the virtual straight line which ties the said 5th axis line L5 and the 6th axis line L6 of the 5th and 6th hinge means 24 and 25 which connect both ends to the internal wall surfaces 4b and 5b of each building A and B.

  In the wall expansion joint device 1, each end portion of the first and second ropes 15, 16 is connected to the rope attachment member 55, so the third axis L 3 and the fourth axis of the third cover body 12. The displacement around L4 is restricted, and accordingly, the displacement around the third axis L3 and the fourth axis L4 of the first and second cover bodies 10, 11 is restricted.

  As a result, the first cover body 10 is angularly displaced in the direction in which the end portion is separated from the second cover body 11 with the first axis L1 of the first hinge means 20 as the rotation center. Further, the second cover body 11 is angularly displaced in a direction in which the other end portion approaches the first cover body 10 with the second axis L2 of the second hinge means 21 as the rotation center. Further, the third cover body 12 is displaced in the direction approaching the link means 14 while being maintained at the central position between the buildings A and B by the first rope 15 and the second rope 16.

  As a result, the wall expansion joint device 1 can prevent the third cover body 12 from greatly projecting toward the passage 2 side, and the first to third cover bodies 10-12 to the buildings A and B can be prevented. Interference can be prevented. Therefore, the wall expansion joint device 1 allows the forward displacement of the other building B with respect to the one building A and maintains the space 3 between the buildings A and B from the passage 2 side. Can do.

  In the wall expansion joint device 1 of the present embodiment described above, for example, when the other building B is relatively displaced rearward with respect to one building A, as shown in FIG. It follows the displacement of B and expands while angularly displacing, allowing the backward displacement of building B.

  Since the link means 14 is realized by a pantograph mechanism, the rope attachment member 55 provided at the center between both ends of the link means 14 is arranged on the virtual horizontal plane parallel to the paper surface of FIG. It arrange | positions in the center of the virtual straight line which ties each 5th axis L5 and 6th axis L6 of the 5th and 6th hinge means 24 and 25 which connects both ends to the internal wall surfaces 4b and 5b of each building A and B.

  In the wall expansion joint device 1, each end portion of the first and second ropes 15, 16 is connected to the rope attachment member 55, so the third axis L 3 and the fourth axis of the third cover body 12. The displacement around L4 is restricted, and accordingly, the displacement around the third axis L3 and the fourth axis L4 of the first and second cover bodies 10, 11 is restricted.

  As a result, the first cover body 10 is angularly displaced in the direction in which the other end portion approaches the second cover body 11 with the first axis L1 of the first hinge means 20 as the rotation center. Further, the second cover body 11 is angularly displaced in a direction in which the other end portion is separated from the first cover body 10 with the second axis L2 of the second hinge means 21 as the rotation center. Further, the third cover body 12 is displaced in the direction approaching the link means 14 while being maintained at the central position between the buildings A and B by the first rope 15 and the second rope 16.

  As a result, the wall expansion joint device 1 can prevent the third cover body 12 from greatly projecting toward the passage 2 side, and the first to third cover bodies 10-12 to the buildings A and B can be prevented. Interference can be prevented. Therefore, the wall expansion joint device 1 allows the rearward displacement of the other building B relative to the one building A, and maintains the space 3 between the buildings A and B from the passage 2 side. Can do.

  The wall expansion joint device 1 is displaced in a direction in which each of the buildings A and B is separated from one of the buildings A and B, for example, the other building B from the initial installation state shown in FIG. Even so, the first strip 15 is in tension and the second strip 16 is in a relaxed state, and the third cover body 12 is displaced to the one building A side beyond the length of the first strip 15. Therefore, as shown in FIG. 6A, the third cover body 12 can be prevented from greatly deviating from the center position of the space 3 between the buildings A and B.

  The wall expansion joint device 1 is displaced in a direction in which each of the buildings A and B is separated from the one building A, for example, the other of the buildings A and B, for example, the building B from the initial state shown in FIG. Even so, the second ridge 16 is in tension and the first ridge 15 is in a relaxed state, and the third cover body 12 is displaced to the other building B side beyond the length of the second ridge 16. Therefore, as described above, it is possible to prevent the third cover body 12 from greatly deviating from the center position of the space 3 between the buildings A and B.

  Further, even if the wall expansion joint device 1 is displaced in a direction in which one of the buildings A and B, for example, the building A is close to the other building B, the rope mounting member 55 is moved to the other side by the contraction of the link means 14. As shown in FIG. 6B, the first cover 15 is moved in the direction of approaching the building B and one end of the third cover body 12 is pulled to the same side as the cable mounting member 55 by the first cable 15. The third cover body 12 can be prevented from moving substantially to the center position of the space 3 between the buildings A and B and being largely displaced from the center position.

  On the other hand, even if one of the buildings A and B, for example, the building B is displaced in the direction of approaching the one building A, the rope attachment member 55 is moved to one side by the contraction of the link means 14. Since the other end portion of the third cover body 12 is pulled by the second rope 16 to the same side as the rope attachment member 55 by moving in the direction close to the building A, as shown in FIG. The third cover body 12 can be prevented from moving substantially to the center position of the space 3 between the buildings A and B and being largely displaced from the center position.

  Furthermore, even if the wall expansion joint device 1 is displaced forward with respect to one of the buildings A and B, for example, the building B with respect to the one building A, the first rope 15 is strained and the second rope. Since the 16 is in a relaxed state and the third cover body 12 is prevented from being displaced to the one building A side beyond the length of the first rope 15, as shown in FIG. The third cover body 12 can be prevented from greatly deviating from the center position of the space 3 between the buildings A and B.

  On the contrary, even if one of the buildings A and B, for example, the building B is displaced backward from the one building A, the second rope 16 is strained and the first rope 15 is in a relaxed state, and the third cover body 12 is prevented from being displaced to the other building B side beyond the length of the second rope 16, so that in this case as well, It is possible to prevent the 3 cover body 12 from greatly deviating from the center position of the space 3 between the buildings A and B.

  Therefore, when the wall expansion joint device 1 is relatively displaced in the direction in which the buildings A and B approach and separate from each other and in the front-rear direction, each of the first to third cover bodies 10 to 12 has an intermediate end between the link means 14. Displacement exceeding the length of the first and second strips 15 and 16 is prevented by the first and second strips 15 and 16 connected to the section, and each building of the first to third cover bodies 10 to 12 The length of the first and second strips 15 and 16 is limited even if the excessive displacement in the direction away from A and B is limited, and the buildings A and B are relatively displaced in the approaching / separating direction and the front-rear direction. The relative displacement between the buildings A and B is allowed in the range, the space 3 between the buildings A and B is kept closed by the first to third cover bodies 10 to 12, and traffic safety is achieved. Can be prevented from falling or entering.

  Thereby, the expansion joint apparatus for walls which can be used suitably as an inner wall which faces the channel | path 2 provided between two buildings A and B is realizable.

DESCRIPTION OF SYMBOLS 1 Wall expansion joint apparatus 2 Passage 3 Space 4 Wall body 5 Wall body 4a, 5a Opposite wall surface 4b, 5b Inner wall surface 10 1st cover body 11 2nd cover body 12 3rd cover body 15 1st rope 16 2nd rope Article 20 First hinge means 20a, 21a, 24b, 25b Fixed piece 20b First movable piece 20c, 21c, 22c, 23c, 24c, 25c Hinge pin 21 Second hinge means 21b Second movable piece 22 Third hinge means 22a Third Movable piece 22b Fourth movable piece 23 Fourth hinge means 23a Fifth movable piece 23b Sixth movable piece 24 Fifth hinge means 24a Seventh movable piece 25 Sixth hinge means 25a Eight movable pieces 40, 41 Brackets 42, 43 Bracket 50, 51 Link mounting member 55 Strip mounting member 56, 57, 60a, 61a Mounting hole 60, 61 Strip mounting member 70, 7 Turnbuckle 70a, 70b, 71a, 71b Mounting portion 80 Vertical frame 81 Horizontal frame 82 Decorative plate 83 Auxiliary member 85 First decorative plate 86 Second decorative plate 87 Spacer 90, 91 Illuminating means A, B Building L1 First axis L2 First 2 axis L3 3rd axis L4 4th axis X 1st horizontal direction Y 2nd horizontal direction Z Up and down direction

Claims (2)

A first cover body whose one end is rotatably held around a vertical first axis on an inner wall surface facing a space in one of two adjacent buildings spaced apart in the horizontal direction;
A second cover body whose one end is rotatably held around a vertical second axis on the inner wall surface facing the space in the other of the two buildings;
The other end portion of the first cover body is rotatably held around a third vertical axis, and the other end portion of the second cover body is rotated around a fourth vertical axis. A third cover body rotatably held;
First hinge means for rotatably connecting one end of the first cover body and the inner wall surface of the one building around the first axis;
Second hinge means for rotatably connecting one end of the second cover body and the inner wall surface of the other building around the second axis;
Third hinge means for connecting the other end portion of the first cover body and the one end portion of the third cover body so as to be rotatable around the third axis;
A fourth hinge means for connecting the other end of the second cover body and the other end of the third cover body so as to be rotatable about the fourth axis;
One end of the inner wall surface of the one building is pivotally held around a fifth axis that is closer to the other building than the first hinge means, and the inner wall surface of the other building The link is such that the other end is pivotably held around a vertical sixth axis at a position closer to the one building than the second hinge means, and the one end and the other end are close to and away from each other. Means,
Fifth hinge means for connecting one end portion of the link means and a portion of the inner wall surface of the one building closer to the other building than the first hinge means so as to be rotatable around the fifth axis. ,
Sixth hinge means for connecting the other end portion of the link means and the portion of the inner wall surface of the other building closer to the one building than the second hinge means so as to be rotatable about the sixth axis. When,
A first strip in which one end is coupled to an intermediate portion in the approaching and separating direction of the link means, and the other end is coupled to one end of the third cover body;
And a second rope having one end connected to an intermediate portion of the link means in the approaching and separating directions and the other end connected to the other end of the third cover body. An expansion joint device for walls.   2. The wall according to claim 1, wherein at least one of the first and second ropes is provided with a length adjusting means for adjusting the length of at least one of the first and second ropes. Expansion joint device.

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