JPH07233804A - Expansion joint - Google Patents

Abstract

PURPOSE:To provide an expansion joint which shuts up a gap between the adjacent building frames of a building, and can be simply and accrately attached, and surely absorbs the fluctuation of the building frame, and is prevented from separating even if it is exposed to wind pressure. CONSTITUTION:A connecting member 2 is arrangedly provided on a supporting members 1, 1 fixed to the ends of building frames A, B, and a bolt 3 equipped with a spring body 4 is inserted through each supporting member 1 and the bottom 2a of the connecting member having a formed slot to lock both their ends, and the supporting member 1 and the connecting member 2 are set so as to be able to relatively fluctuate as they follow after the fluctuation of the building frame. In addition, a cover body 6 to shut up a gap between both the frames is coveringly fitted on the connecting member 2, and the bolt 7 equipped with the spring body 8 is inserted through an attaching member 7 fixed to the back of the cover body 6 and both the sides of the connecting member 2 for locking them. Thus the connecting member 2 and a cover body 6 are relatively movable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint which is capable of absorbing a gap between two skeletons of a building so that the gap between the two skeletons can be absorbed.

[0002]

2. Description of the Related Art Structure gaps in buildings, such as walls to walls, roofs to roofs, and other adjacent parallel planes or adjacent cross planes, are closed by directly fixing rigid bodies. If it is set, it becomes impossible to deal with the fluctuation (shift) of the structure due to the expansion and contraction of the building and the ground change. In consideration of such a point, for example, both ends of a spring member having a substantially W-shaped cross section are fixed to opposite body ends, and the back side of the cover member is fitted to the W-shaped intermediate portion of the spring member. An expansion joint is used in which the cover member is fixedly attached and the cover member is pressed against the skeleton side by utilizing the spring pressure, and the spring member absorbs the variation between the skeletons.

[0003]

However, since the expansion joint as described above is a spring member, the pressing force of the cover member, such as the pressing force at the time of mounting or the wind pressure after mounting, or its own weight, etc. The central part is likely to bend when received by the fastening part, and the cover member may not be in a close contact state due to the bending, the attached state of the cover member may be deformed, or the finish state with other members may be misaligned. Can occur. It is also conceivable to use a spring member with high hardness and strength so that bending does not occur, but if it does not cause bending, it will be hard and difficult to bend even during installation, so workability Will be significantly deteriorated, or in some cases, it will not be possible to mount.

Further, since the flexure of the W-shaped spring member is utilized, it can be applied only to a small gap within the range in which the flexure of the spring member can sufficiently act, and moreover, it can be applied in the vertical direction of the W-shaped member. If a significant step is generated, the spring member may be deformed more than necessary and may be damaged, or the mounting portion may drop out. Therefore, the spring member is
Taking into consideration spring strength, ease of manufacture, manufacturing cost, installation workability, etc., with a gap of up to about 150 mm,
Moreover, although it can be used for the gap between the skeletons which is relatively free from displacement or fluctuation in the vertical direction of the W type, it has a drawback that it is difficult to accommodate a wider gap or a large fluctuation range.

Further, regardless of the gap width and the fluctuation width, after the mounting, if a strong wind is blown, especially if a so-called bag wind is blown from only one longitudinal side of the cover body, it is impossible for the fitted fastening portion. There were times when pressure was applied and the train came off. Since this fastening part is the central part of the back surface of the cover body,
It could not be seen, and there was a risk that it would be left without being able to reconfirm the detached state, and it might fall out.

The present invention solves the above-mentioned drawbacks, pursues further simplicity of construction, certainty of fixation, and stability of the fixation state, and there is no fear of separation due to wind pressure or the like. It is an object of the present invention to provide an expansion joint capable of sufficiently absorbing the variation between the skeletons in both the narrow and wide spheres, and sufficiently corresponding to the wide skeleton of the skeleton.

[0007]

In order to achieve the above object, in the expansion joint of the present invention, a connecting member is arranged so as to straddle each supporting member fixed to an adjacent body portion, and the connecting member is also provided. A bolt is inserted into each of the support members and each supporting member, a spring body is interposed in at least one of the bolts, the bolts are locked to the supporting member side and the connecting member side, and a cover body is attached to the connecting member to build the body. It is characterized in that it is provided with a structure adapted to cover the gap. The present invention particularly arranges a connecting member so as to straddle each supporting member fixed to an adjacent skeleton portion, inserts a bolt into each of the connecting member and each supporting member, and attach a spring to each bolt. With the body interposed, the bolts are locked to the support member side and the connecting member side, the two members are relatively variably connected by the expansion and contraction of the spring body, and a cover body is attached to the connecting member to build the body. It is characterized in that it is provided with a structure adapted to cover the gap.

The bolt has a bolt head at one end and a stopper blade at the other end, which is axially fixed to a shaft orthogonal to the bolt shaft and is rotatable in the bolt axial direction and the orthogonal direction. It is more preferable that one of the head and the stop blade is locked to the supporting member side and the other is locked to the connecting member side.

Further, it is preferable that the bolt is inserted into and locked by a long hole formed in the connecting member, particularly a long hole in the width direction of the body gap. The cover body and the connecting member may be slidably connected to each other in the body gap continuous direction. It is more preferable that both of them are provided with a spring body and are connected so as to be slidable against the spring pressure by a bolt having a bolt shaft oriented in the body gap continuous direction.

The support member does not form a tip portion including the bolt insertion portion, forms a locking portion at an inner end portion of the body gap, and a waterproof sheet locking portion which engages a waterproof sheet edge portion thereunder. And a supporting member main body having a structure in which the above-mentioned structure is formed, and a structure in which an engaging portion capable of engaging with the above-mentioned engaging portion is formed at one end of a piece member having an appropriate size including a bolt insertion portion, that is, a relatively short width. It can be configured to be combined with a bolt insertion member.

[0011]

[Operation] Since the support member fixed to the body and the connecting member that straddles the body are connected by the bolts provided with the spring body, the connecting member and the cover body connected to this are always pressed against each other in the body direction. In addition, the connecting member can be freely displaced with respect to the support member due to the spring pressure, and the fluctuation in the bolt axis direction is caused by the expansion and contraction of the spring body. By horizontally or rotating it, it is possible to absorb the fluctuation of the body. If the bolt is inserted through the long hole of the connecting member, the bolt can be displaced by the length of the long hole, so that the fluctuation can be absorbed more, and the cover body and the connecting member are slidably connected by the spring body, so that the cover is covered. Since the body can change relatively, the change can be absorbed more.

Further, since the bolts are locked, the connection between the support member and the connecting member and between the connecting member and the cover body is not separated unlike the fitting method. By interposing the spring bodies on the bolts on both sides, it is possible to further increase the absorption width of the body fluctuation. If the bolt has a bolt head at one end and a stop vane at the other end, the spring body is compressed and the stop vane is
Since it only needs to be rotated, locking operation of the bolt is easy and there is no risk of loosening or detaching like a nut.
Moreover, since the tip of the bolt protruding from the spring body by a considerable length is not necessary, an extra gap for receiving this is not required. If the support member is configured such that the bolt insertion member is locked to the support member main body, only the bolt insertion portion needs to be projected into the body gap, so that the entire body gap width is widely opened. Therefore, the work inside the gap can be significantly facilitated.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The expansion joint as the first embodiment of the present invention, as shown in FIG. 1 and FIG. 2 to FIG. 5, has support members 1, 1 that are fixed to the frame gap edges of the outer surfaces of the adjacent frames A and B, respectively. A connecting member 2 having an appropriate width that is connected across both supporting members 1 and 1, the supporting members 1 and 1 and both sides of the connecting member 2 are provided with spring bodies 4 and 4 and spring members 5 and 5, respectively. Bolts 3 and 3 and a connecting member 2 which are variably connected
The main body is a long cover body 6 that is attached to the base body 6 to close the body gap, and a bolt 7 that variably connects the connecting member 2 and the cover body 6 via a spring body 8. There is.

The support members 1, 1 are, as shown in FIGS.
Each of them is a member that is fixed to an adjacent skeleton by an anchor bolt or the like, and is made of aluminum, stainless steel, or another appropriate metal material, and both of them are projected and locked to the support member main body 9 and the tip portions thereof, that is, the inner end portion of the skeleton gap. It is formed in combination with the bolt insertion member 10. In the support member main body 9, the end portion of the plate portion 9a fixed to the body is used as a bent end portion 9b along the corner of the body, and the groove cross section is bulged inward on the inner surface of the body gap at the bent end portion. Forming a groove-shaped engaging portion 9c in the form of a dovetail groove, and forming a jaw-like surface portion 9d by appropriately outwardly projecting the groove surface on the tip end side of the bent end of the engaging portion 9c,
A waterproof sheet locking portion 9e that engages the edge portion of the waterproof sheet S is formed on the bent tip end side, and a projection 9f having a slight length from the vicinity of the tip portion of the plate portion 9a toward the outside of the body is formed. Has been formed.

A cross section of the bolt insertion member 10 is slidably engaged with the groove-shaped engaging portion 9c and is not disengaged when pulled in the body gap width direction (left and right direction in FIG. 1). A convex engaging portion 10a having a dovetail shape such as a bulge is formed at the base end, and in this engaged state, the plate portion 9 is formed.
A plate portion 10c having a corner portion 10b that abuts the tip end portion of a and having a little length in the extension direction of the plate portion 9a is formed.
0c is bent from the front end to form a parallel protrusion 10d having the same length as the protrusion 9f, and the bolt insertion hole 10 is formed in the plate portion 10c.
e is drilled. The support member main body 9 is an elongated body having an appropriate length or a long body gap continuous direction (a front-back direction orthogonal to the paper surface in FIG. 1), while a bolt insertion member 10 is provided.
Need only be formed at the attachment points where the connecting members 2 are arranged at appropriate intervals, and therefore may be formed as piece members of appropriate width.

The support member main body 9 having the above-mentioned structure is fixed to the skeleton body with anchor bolts or the like so that the bent end portion 9b is aligned with the end portion of the skeleton body A (B), and is formed into a groove shape in advance or afterward. The support member 1 is formed by connecting the bolt insertion member 10 to the engagement portion 10a by sliding the engagement portion 10a in the groove direction into engagement with the engagement portion 9c.

When the support member main body 9 and the bolt insertion member 10 are engaged with each other, the corner portion 10b comes into contact with the end of the plate portion 9a, and the lower surface of the engaging portion 10a comes into contact with the jaw-like surface portion 9d. Although they are integrally connected without rattling and do not separate in the body gap width direction, they can slide in the groove direction of the locking portion 9c. Therefore, when the support member main body 9 is a long member, a desired plurality of bolt insertion members 10 are mounted and the individual bolt insertion members 1 are connected when connecting the connecting members 2.
0 can be freely slid to a predetermined position. The joint end of the engagement portion between the support member main body 9 and the bolt insertion member 10 is caulked to be deformed, or a wedge is driven between the joint surfaces of the engagement portion, or both portions of the engagement portion are inserted. By inserting the pin and crimping and fixing the pin, the connection between the support member main body 9 and the bolt insertion member 10 can be further strengthened.

The support member 1 has a structure other than the above structure.
For example, it can be configured as shown in FIG. Figure 7
The support member 101 of (A) is the plate portion 9 a of the support member 1.
And the plate portion 10c become a continuously integrated plate portion 101a, and an inward folded portion 101b having an appropriate length along the corner of the body is formed to project inside the tip portion thereof, and the waterproof sheet locking portion 101c is provided at the tip portion. A protrusion 101d that is formed and protrudes outward in the vicinity of the same portion is formed in parallel with the tip of the plate portion 101a.
e may be formed respectively, and a bolt insertion hole 101f may be formed in the plate portion between the protrusion 101e and the inwardly-folded portions 101b to 101d. However, the structure of the support member 1 is more preferable than the structure of the bolt insertion member 10
It is more preferable that the space between the support members 1 and 1 which does not lock is widened to facilitate workability in the body gap, and the position of the bolt insertion member 10 can be arbitrarily shifted.

The support member 102 shown in FIG.
Is a plate portion 1 similar to the plate portion 101a of the support member 101.
The inner folded portion 102b along the body corner is formed in the middle portion of 02a, the protrusion 102c is formed on the outer side thereof, and the waterproof sheet locking portion 102d is formed inside the tip portion of the plate portion 102a. It is possible to form a bolt insertion hole 102e in the plate portion and to form a protrusion 102f having the same length as the protrusion 102c and parallel to the outside of the tip of the plate portion as needed. Even in this case, the structure of the support member 1 allows a wider space between the support members 1 and 1 in a portion where the bolt insertion member 10 is not locked, thereby facilitating workability in the body gap, and also the bolt insertion member 10 It is more preferable that the position of can be shifted arbitrarily.

Although not shown, in the support member 101 of FIG. 7A, only the portion where the bolt insertion hole 101f is formed is left, and the other portion, that is, the plate on the tip side (the body gap side) with respect to the protrusion 101d. When the portion 101a is cut off, the supporting member 1 has the same fixed form as a result, and such a form can also be adopted. But,
In this case, the notch processing cost becomes large, the material of the cut portion becomes useless, and the pitch cannot be set on site, which is a practical disadvantage compared to the supporting member 1.

In any of the above-mentioned examples, the connection structure of the support member main body 9 and the bolt insertion member 10 is not limited to the above-mentioned examples. Protrusions 9f and 10d, 101d and 101
e, 102c and 102f can be formed as projecting surfaces, in which case both projections can be replaced by one continuous projecting surface. In addition, the protrusions 9f, 10d and 101
Only one of d and 101e and 102c and 102f may be formed. The degree of protrusion of these protrusions or protruding surfaces and the plate portions 10c, 101a,
The degree of protrusion of 102a into the body gap is as follows.
Can be appropriately set so that a large displacement angle of the connecting member 2 that is displaced when f.

Next, as shown in FIGS. 1 and 3, the connecting member 2 is made of aluminum, stainless steel, or other appropriate metal material, and is attached to the projections 9f and 10d of the supporting members 1 and 1 fixed to both the bodies A and B, respectively. Bottom surface 2 of appropriate length that can be installed across
a and side surfaces 2b raised on both sides in the body gap continuous direction,
2b and an overhanging piece 2 which protrudes slightly inward from the inner portions on both side surfaces and maintains a gap between which spring members 5 and 5 can be arranged.
c, 2c, and bolt insertion long holes 2d, 2d in which the bolt 3 can be inserted through the bottom surface 2a of the support member 1, 1 facing the bolt insertion hole 10e and which is long in the body gap width direction. Has been formed. Although not shown, the bolt insertion long hole 2d may be a cross-shaped long hole, and the overhanging pieces 2c and 2c may not be formed.

The bolt 3 is, as shown in FIGS. 1 and 3 to 4,
Fork the tip of the bolt 3b having the bolt head 3a into the forked portion 3
c, and a shaft stopper 3d is provided across the bifurcated portion, and a rod-shaped or elongated plate-shaped stopper blade 3e is provided on the shaft stopper 3d.
The shaft is rotatably fixed. The bolt may be a male screw body, but may be a rod body not having a male screw, and the meaning of the bolt in the present invention is not limited in this respect. When the stopper blade 3e is positioned coaxially with the bolt, one end of the stopper blade 3e protrudes from the tip of the forked portion 3c with a proper length, and when it is rotated in the direction orthogonal to the bolt axial direction, it is T-shaped or Both ends project in a cross shape,
The length of one end of the spring body 4 described later is set so that it can be locked at both ends of the protrusion, and the one end is formed to be appropriately longer than the other end for easier operation. The hole 3f is formed near the tip of this one end.

The tip of the bolt 3 can be tightened with a nut or a cap nut as in the case of a normal bolt headed bolt. However, the bolt 3 is more excellent in practical use in consideration of the burden of the nut tightening work, the looseness of the nut over time, the presence of unnecessary protrusions on the bolt tip side, and the like.

The spring body 4 is, as shown in FIGS. 1 and 3 to 4,
A coil-shaped compression spring, in which a bolt 3 is inserted into a supporting member 1 and a connecting member 2, and one end of the bolt 3 is locked to the connecting member 2 side with a spring member 5 interposed therebetween. With the other end of the bolt protruding inward, the bolt is attached to the protruding bolt part in an appropriately compressed state, and the other end of the bolt (the bolt head in FIG. 1, but upside down as shown in FIG. 10 is used. It may be configured to serve as the stop blade 3e).

The above-mentioned coil spring is most preferable for the spring body 4, but as shown in FIG. 8 (A), a bolt insertion hole is formed at each central portion of the continuous dogleg-shaped folded piece, and locking pieces are provided at both upper and lower ends. Alternatively, the plate spring 4A may be formed as a plate spring, and as shown in FIG. 8 (B), a locking piece is formed at both ends of the dogleg shape so as to face each other, and a bolt insertion hole is formed in the locking piece. The spring 4B may be used, or, as shown in FIG. 8C, a bent leaf spring 4c having a vertically long hexagonal cross section may be used, and a W-shaped leaf spring such as a conventionally known W spring may be used although not shown. It may be provided, and other suitable configurations can be adopted.

Next, as shown in FIGS. 1 and 3, the spring member 5 has a flat surface 5b at the intermediate position between the W-shaped pieces 5a and 5a, and a bolt insertion hole 5c is formed in this surface. The connecting member 2 is formed to have a width such that it can be installed between the overhanging pieces 2c, 2c of the connecting member 2. The bolt insertion hole 5c may be a round hole, but may be a long hole. Although it is preferable to use this spring member 5, it is not always necessary to make it an essential structure.

According to the above structure, the fixed support members 1,
1, the spring member 5, 5 is arranged in the bottom surface 2a of the connecting member 2, and the bolt inserting holes (the spring member 5, the connecting member 2 and the supporting member 1) are provided. The bolt 3 is inserted through the long holes 5c, 2d, and 10e, the bolt head 3a is locked to the spring member 5 (interposition of a washer is optional), and the support member 1 of the support member 1 is then attached as shown in FIG. 4 (A). The spring body 4 is attached to the bolt portion protruding inward of the body gap (it is optional to attach a washer to the tip of the spring body 4).
As shown in (B), the tip of the spring body 4 is drawn to the outside of the body gap (in the direction of the arrow) using an appropriate jig so that the spring body 4 is
Is compressed, the stopper blade 3e can be rotated in the direction orthogonal to the bolt as shown in FIG. 8C, and the spring body 4 can be opened to be locked to the stopper blade 3e. The member 2 is connected to the support members 1 and 1 by a bolt in an elastic state.

As shown in FIG. 1, the cover body 6 has a surface plate 6a having a width and a long length sufficient to close the body gap, and both end portions in the body gap width direction are folded. Side plates 6b and 6b that close the gap between the curved body surfaces A and B,
One end is fixed to the ends of the side plates 6b, 6b and the other end is pressed against the faces A and B of the body, and the gap is formed so as not to follow even if the distance between the side plate and the face of the body fluctuates. It is formed by including the sealed seal members 6c and 6c. The seal member 6c may be formed of a leaf spring material, a rubber material, a foam material, or the like in an appropriate form capable of expanding and contracting.

As shown in FIGS. 1, 3 and 5, the cover body 6 is connected to the connecting member 2 by forming side plate portions 11b and 11b at both ends of the flat plate portion 11a in a U-shaped cross section. Then, in the vicinity of both ends of the connecting member 2, both side plates 6
The side plate portions 11b, 11b
A mounting member 11 to which 11b can be fitted face-to-face, both side plate portions 11b, 11b, and both side plates 6b, 6 located therebetween.
spring bodies 8 and 8 composed of bolts 7 that can be fixed by inserting through holes formed in b in advance and coiled compression springs that are interposed in the bolt portions between the side plate portion 11b and the plate portion 6b. And the flat plate portion 11a of the mounting member 11 is brought into contact with the back surface of the front surface plate 6a of the cover body 6 fitted to the connecting member 2, and both are fastened with screws or rivets 12, and this fastening The part is sealed. The bolt 7 may have the same structure as the bolt 3 or may have a nut fixing structure or the like. Further, the mounting member 11 is, as shown by the chain line in FIG.
It is also possible to adopt an inner fitting form in which the sliding member is fitted into the space between the side plate portions 6b, 6b of the connecting member 2 with a sliding gap therebetween.

The attachment of the spring body 8 in the above-mentioned connection structure may be arbitrary as long as the mounting member 11, that is, the cover body 6 is slidable with respect to the connection member 2.
For example, as shown in FIG. 9 (A), the spring body 8 may be interposed only between the one side plate portion 11b and the side plate 6b, or, as shown in FIG. 9 (B), the flat plate portion 11a of the mounting member 11 is provided. A spring body 8a such as a W-shaped spring piece is formed by projecting spring pieces outwardly on opposite sides from a fixed portion fixed to the back surface. Both end portions of the spring piece are appropriately compressed and both side plates 6b of the connecting member 2 are
You may install so that it may press-contact with the inner surface of 6b.

According to the expansion joint constructed as described above, as shown in FIG. 6 (A), when the skeletons A and B relatively change, the support members 1 and 1 fixed to the skeleton are fixed. When the positions are different from each other, the connecting member 2 contacting the protrusions 9f and 10d is pushed and tilted by this, but the end of the connecting member 2 separates from the supporting member 1 on the side of the body A which is displaced outward, so that the spring is The bolts 3 are pulled while compressing the body 4, and the connecting member 2 is provided on the side of the body B that is displaced inward.
Although the end portion of is close to the body side, the bolt 3 insertion portion is separated from the support member 1 with the protrusion 9f as a fulcrum, so that the bolt 3 is pulled while compressing the spring body 4,
In each case, the elasticity of the spring body 4 only causes the bolt 3 to be displaced in the axial direction without causing deformation or breakage in the supporting member 1 or the connecting member 2, and by following the fluctuation of the body and absorbing it. You can

When the skeletons A and B further fluctuate, the fluctuation range of the spring body 4 and the bolt 3 becomes large and the connecting member 2 on the skeleton B side deviated inward as shown in FIG. Even if the end portion comes into pressure contact with the body surface and the connecting member 2 separates from the protrusion 9f, this fluctuation can be absorbed as long as it is within the variable range of the spring body 4 and the bolt 3.

In any of the above cases, the stopper blade 3e at the tip of the bolt 3 receives the elastic resistance of the spring body 4 and is more strongly locked to the end portion of the spring body 4, and there is no danger of it coming off. Further, since the spring member 5 is elastically deformed, it cooperates with the spring body 4 to absorb the skeleton variation and maintain the locking of the bolt 3 in a stable state.

Incidentally, the supporting members are the projections 10d and 101e.
Alternatively, when the configuration is such that 102f is not formed, as shown in FIG. 10, the connecting member 2 portion of at least one bolt 3 insertion portion approaches the supporting member 1 portion, and the bolt 3 is correspondingly Absorb the fluctuation by shifting.
In this case, the spring body 4 does not cause rattling due to the restoring force from the appropriately compressed state.

Further, with respect to the displacement in the body gap width direction, since the bolt 3 can relatively move by the length of the bolt insertion long hole 2d of the connecting member 2, the supporting member 1 and the connecting member 2 can relatively move, and the spring can be changed. The elasticity of the body 4 and the spring member 5 also works to absorb the deviation. Further, the displacement of the skeleton in the skeleton gap continuous direction is such that the bolts 3, 3 can be slightly rotated with respect to the supporting members 1, 1 and the connecting member 2, so that the supporting members 1, 1 and the connecting member 2 are Can be absorbed by being relatively displaceable, and if the bolt 7 and the spring body 8 are interposed at the connecting portion between the connecting member 2 and the cover body 6, the spring body 8 can be deformed. Since the bolt 7 can be displaced by the amount, the cover body 6 and the connecting member 2, that is, the supporting members 1 and 1 can be relatively displaced, and the deviation can be absorbed in a larger range. If the insertion hole (long hole) of the bolt 3 is formed as a long hole in the same direction, the shift can be absorbed also in this portion. In this way
Since the body fluctuation can be absorbed, the connecting member 2 to the cover body 6
The cover body 6 can maintain a stable closed state without being removed or damaged.

The support member is, as shown in FIG. 7B, the waterproof sheet locking portion 1 for engaging the edge portion of the waterproof sheet S.
If 02d is formed inside the body gap rather than the bolt insertion hole 102e, the rainwater soaked from the bolt insertion hole 102e cannot be received by the waterproof sheet, but as shown in FIGS. 2 and 7A, the bolt insertion hole Waterproof sheet locking portions 9e, 10 closer to the inner side than 10e, 101f, that is, closer to the body
With the configuration in which 1c is formed, the ingress rainwater can be received by the waterproof sheet S, so the latter is more preferable.

Further, the mounting work of the bolt 3 and the spring body 4, the mounting work of the waterproof sheet S and the like are performed by using the inside of the body gap after fixing the supporting member to the body, so that the body gap is not narrowed as much as possible. It is preferable to adopt a support member structure. The support member main body 9 and the bolt insertion member 1 shown in FIG.
According to the combination configuration of 0, only the bolt insertion member 10 is projected, but other portions do not have a large protrusion from the support member main body 9 into the body gap, so that the body gap can be kept wide and the inside of the bolt insertion member 10 can be maintained. It is also preferable to the integrally molded structure because it is easy to perform the operation.

Next, a more preferable example of the structure in which the bolt 3 is used will be described with reference to FIGS. In the expansion joint of this embodiment, the bolt 3 is used in the reverse direction in the embodiment of FIG. 1, and the other structure is the same. Although the spring member 5 may or may not be used, a configuration not shown is shown in the drawing. When the spring member 5 is not used, it is preferable to use the washer Y.

That is, as shown in FIG. 12 (A), the spring body 4 is attached to the bolt 3 and one end thereof is locked to the bolt head 3a, and this bolt 3 is bolted to the support member 1 from the inside of the body gap. The tip of the pulling jig T is inserted into the insertion hole 10e and the tip of the insertion hole 10e is inserted into or exposed to the bolt insertion long hole 2d of the connecting member 2 and the washer Y is previously placed on the long hole 2d. Part of the stopper blade 3e is hooked in the hole 3f of the stopper blade 3e, or the tip of the stopper blade 3e is gripped with a gripping jig.
The stopper blade 3e is passed through the bolt insertion long hole 2d and the connecting member 2
When the pulling blade 3e is pulled inward and the retaining blade 3e is rotated as it is as shown in FIG. 7B to make it orthogonal to the bolt axis, and at the same time the jig is removed, the retaining blade 3e is connected to the connecting member as shown in FIG. It is locked to the bottom surface 2a of 2 and the connection is completed without coming off from the bolt insertion long hole 2d. Stop blade 3e
The lock is not removed from the long hole 2d by the washer.

According to this structure, the operation of compressing the spring body 4 and locking the bolt 3 can be performed only by pulling the stop blade 3e at the tip of the bolt 3 from the outside, and the work inside the body gap can be performed. Since it is not necessary, it is simple and easy, and at the same time, it is excellent in reliability, and is more preferable than the above-mentioned embodiment.

13 and 14 show another embodiment different from the above. The expansion joint shown in FIG. 13 is a supporting member 10 shown in FIG. 7 (A) as a supporting member.
1 (provided that the protrusion 101e is not formed), the connecting member 2 is connected to the supporting member 101 fixed to one of the frames A by the bolt 3 having the spring body 4 interposed therebetween as in the above-described embodiment. However, for the other body B,
A bolt 13 for tightening the nut is used, and the bolt head is locked to the spring member 5 arranged in the connecting member 2 so that the bolt is inserted into the bolt inserting hole 5c and the bolt inserting long hole 2 of the connecting member 2.
d, insert into the bolt insertion hole 101f of the support member 101,
The nut 13a is screwed from the inside of the support member 101 and tightened. It is preferable that a hinge 14 be fixedly attached to a contact portion between the bottom surface 2a of the connecting member 2 and the protrusion 101d of the supporting member 101. Hinge 14 is protrusion 10
Although fixed to 1d, it may or may not be fixed to the bottom surface 2a of the connecting member 2. The hinge 14 is a plate (not shown) along the outer surface of the bottom surface 2a of the connecting member 2.
It may be fixed to the projection 101d.

According to this expansion joint, the connecting member 2 that changes in accordance with the changes in the skeletons A and B.
Has a hinge 14 as a pivot and is inclined with the deformation of the spring member 5, and otherwise acts in the same manner as in the above embodiment. By joining the plate with the hinge 14 to the bottom surface 2a,
Since the two can be freely displaced, it is possible to sufficiently cope with the fluctuation in the lateral direction.

The embodiment of FIG. 14 uses the support members 1 and 1 of the above embodiment in place of the support member 101 in the embodiment of FIG. 13, and connects the support member 1 and the connecting member 2 on the side of one skeleton A. As for the connection, as shown in FIGS. 11 and 12, the bolt 3 having the spring body 4 mounted therein is inserted from the inside of the body gap of the support member 1, and is locked inside the connection member 2 by the stopper blade 3e. It is constructed in the same manner as in the above embodiment.

Other than the above, various modifications can be made in line with the above technical idea, and the present invention includes these modifications. It is also possible to form the protrusions 9f, 10d and the like on the support member 1 and form them on the bottom surface 2a side of the connecting member 2.

Further, FIG. 15 shows an example of an expansion joint that closes the gap between the outer surfaces of the skeletons located in a cross shape. However, the expansion joint of the present invention can be used when the mounting surfaces are different as described above. Also applies. In the figure, the outer surface of the skeleton B is installed orthogonally to the outer surface of the skeleton A, and a gap is formed between the surface of the skeleton A and the corners of the skeleton B.

In this case, the supporting member 1 similar to that of the above-described embodiment is fixed to the skeleton B, and the skeleton A is a plate without bending the bent end portion 9b of the supporting member main body 9. Support member main body 9 having a structure in which it is extendedly formed on the same plane as the portion 9a
Fix 1 That is, the support member main body 91 is formed of a main body portion 91a which is a body fixing portion and an extension portion 91b which is a connecting portion, and a groove-like groove shape in which the groove cross section is a dovetail groove shape such as a middle bulge on the outer surface of the extension portion 91b. The engaging portion 91c is formed, and the groove surface on the tip end side of the engaging portion 91c is appropriately projected outward to form the jaw-like surface portion 91d, and the edge portion of the waterproof sheet S is engaged with the tip outer side than this. A waterproof sheet locking portion 91e is formed. The bolt insertion member 10 coupled to the support member main body 91 may have the same configuration as described above.

The cover body 61 has the same structure as that of the cover body 6, but a side plate 61b on one side of the surface plate 61a.
The configuration is such that the leaning position is bent outward at a right angle and can be closed while straddling both the skeletons A and B. The construction method may be the same as that of the above embodiment except that the orientation of the mounting surface is changed.

[0049]

In the expansion joint of the present invention, the base body is installed between the two bodies, and the base body is connected to the body side by the bolts via the spring body. It can be installed in the gap between wide and narrow, and the fluctuation of the skeleton can be absorbed by elastic deformation of the spring body and displacement of the bolt with respect to the bolt insertion hole. By connecting the connecting member 2 with, the fluctuation of the skeleton can be more sufficiently and surely absorbed, and there is no fear that the connecting member will be separated from the skeleton side even if the skeleton is changed.

If the bolt has a stopper blade rotatably at its tip, it is more effective in terms of its mounting workability, locking certainty, and space utilization due to the small protruding portion. can do. If the bolt is connected to the connecting member so as to be displaceable by a long hole or the like, the range and direction of absorbing the fluctuation of the skeleton can be widened. The same applies to the case where the bolt is locked to the connecting member via the spring member, and the fluctuation absorbing property can be enhanced.

If the cover body and the connecting member are slidably connected, the fluctuation absorbability of the body is further increased, and the stability of the cover body being closed and the connection is not impaired. Especially by connecting via a bolt with a spring body,
Greater stability. If it is a connection with bolts,
It is possible to eliminate the risk that the cover body will come off due to wind pressure or the like. In addition, if the support member is configured to connect the support member main body and the bolt insertion member, it is possible to improve the efficiency of bolt mounting work, and only the support member main body is installed except the installation position of the bolt insertion member, Since it is possible to maintain a wide range, it is possible to make the work in the body gap part easier and save the material.

[Brief description of drawings]

FIG. 1 is a side view, partly in section, showing an attached state of an expansion joint according to an embodiment of the present invention.

FIG. 2 is a partial perspective view showing the support member of FIG.

FIG. 3 is a cross-sectional view showing the connection member, the spring body, and the attachment member of FIG. 1 in an exploded state.

4A and 4B show a connecting structure portion between the supporting member and the connecting member of FIG. 1, FIG. 4A is a side view of a process of mounting a bolt and a spring body, and FIG. Is a side view showing a process of locking the tip of the bolt with a bolt, and FIG.

5 is a cross-sectional view showing a connection structure portion of the attachment member (cover body) and the connection member of FIG.

FIG. 6 shows a state in which the expansion joint of FIG. 1 follows the fluctuation of the skeleton, (A) is a side view showing a cross-section of a part of the slight fluctuation state, and (B) is a larger fluctuation state. It is a similar side view.

FIG. 7 shows a modified example of the support member, (A) is a partial perspective view of the example, and (B) is a partial perspective view of another example.

FIG. 8 shows a modified example of a spring body, which includes (A),
(B), (C) is a perspective view of another modification, respectively.

9A and 9B show a modified example of a connecting structure portion between a mounting member and a connecting member, wherein FIG. 9A is a sectional view of one example thereof, and FIG. 9B is a sectional view of another example thereof.

FIG. 10 is a side view, partly in cross section, showing a state in which the expansion joint using a support member different from that of FIG. 6 follows the fluctuation of the body.

FIG. 11 is a side view, partly in cross section, showing a mounted state of an expansion joint of an embodiment in which a part of the configuration is modified.

12A and 12B show a connecting structure portion between the support member and the connecting member of FIG. 11, FIG. 12A is a side view of a process of mounting a bolt and a spring body, and FIG. Is a side view showing a process of locking the tip of the bolt with a bolt, and FIG.

FIG. 13 is a side view showing a state in which an expansion joint of another embodiment having a partially modified structure is attached.

FIG. 14 is a side view showing an embodiment further different from that of FIG.

FIG. 15 is a side view showing a state in which an expansion joint of another embodiment different from the above embodiments is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support member 2 Connection member 3 Bolt 3e Stopper blade 4 Spring body 5 Spring member 6 Cover body 7 Bolt 8 Spring body 9 Support member main body 10 Bolt insertion member 11 Mounting member

Claims (7)

[Claims] 1. A connecting member is arranged so as to straddle each supporting member fixed to an adjacent body portion, and a bolt is inserted into each of the connecting member and each supporting member, and at least one of the bolts has a spring body. An expansion joint having a structure in which a bolt is locked to the support member side and the connecting member side, and a cover body is attached to the connecting member to cover the body gap. 2. A connecting member is arranged so as to straddle each supporting member fixed to an adjacent body portion, and a bolt is inserted into each of the connecting member and each supporting member, and a spring member is attached to each bolt. After mounting the bolts, the bolts are locked to the support member side and the connecting member side, the two members are connected so as to be relatively movable by the expansion and contraction of the spring body, and the connecting member is covered with the cover body to form the body gap. An expansion joint having a structure adapted to cover. 3. The bolt has a bolt head at one end, and a stop vane at the other end, which is axially fixed to a shaft orthogonal to the bolt shaft and is rotatable in the bolt axial direction and the orthogonal direction. The expansion joint according to claim 1 or 2, wherein one of the bolt head and the stop blade is locked to the support member side and the other is locked to the connecting member side. 4. The expansion joint according to claim 1, wherein the bolt is locked by being inserted through a long hole formed in the connecting member. 5. The expansion joint according to claim 1, wherein the cover member and the connecting member are connected to each other so as to be slidable in the body gap continuous direction. 6. The cover body and the connecting member are connected so as to be slidable against the spring pressure by a bolt having a spring body interposed therebetween and having an axial direction in which the body gap is continuous. The expansion joint according to any one of 1 to 5. 7. A waterproof sheet member, wherein the supporting member does not form a tip portion including a bolt insertion portion, forms a locking portion at an inner end portion of the body gap, and engages a waterproof sheet edge portion thereunder. A support member main body having a configuration in which a stopper is formed, and a bolt insertion member having a configuration in which an engaging portion engageable with the locking portion is formed at one end of a piece member of an appropriate size including a bolt insertion portion. The expansion joint according to any one of claims 1 to 6, which has a combined structure of