JP2932455B2 - Expansion joint - Google Patents

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 closes a gap between adjacent skeletons of a building so as to be able to absorb a change in both skeletons.

[0002]

2. Description of the Related Art A gap in a building, for example, a gap between walls, walls, a roof and a roof, and other adjacent parallel surfaces or between adjacent cross surfaces is closed by directly fixing a rigid body. In such a case, it becomes impossible to cope with a change (displacement) in the building due to expansion and contraction of the building, ground change, and the like. In consideration of such points, for example, both ends of the spring member having a substantially W-shaped cross section are fixed to the opposite ends of the skeleton, while the back surface 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 brought into pressure contact with the skeleton by utilizing the spring pressure when the joints are fastened together, and the variation between the skeletons is absorbed by the spring member.

[0003]

However, since the expansion joint as described above is a spring member, the expansion joint has a pressing force of a cover member such as a pressing force at the time of mounting, a pressing force due to a wind pressure after mounting, or its own weight. The central portion is easily bent by receiving the fastening portion, and the cover member does not come into close contact due to the bending, the mounting state of the cover member is deformed, or the finish state between other members is incorrect. Can occur. It is also conceivable to use a spring member having a high hardness and strength so as not to cause bending. However, if the bending does not occur, the spring member is hard and does not bend easily even at the time of mounting. Is significantly deteriorated or, in some cases, mounting becomes impossible.

[0004] Further, since the bending of the W-shaped spring member is used, it can be applied only to a small gap within a range where the bending of the spring member can sufficiently act. If a remarkable step is generated, the spring member is deformed more than necessary and is damaged, or the mounting portion is dropped. Therefore, the spring member has its elastic action,
Considering spring strength, manufacturability, manufacturing cost, goodness of installation workability, etc., the gap up to about 150 mm,
In addition, although it is possible to use it in the gap between the skeletons which does not relatively displace or fluctuate in the vertical direction of the W shape, there is a drawback that it is difficult to cope with a wider gap or a large fluctuation width.

In addition, regardless of the gap width and the fluctuation width, if a strong wind blows after the mounting, especially a so-called bag-like wind blowing from only one longitudinal side of the cover body, it is impossible to fit the fitted fastening portion. In some cases, pressure was applied and the product came off. Because this fastening part is the center of the back surface of the cover body,
There was also a possibility that the user could not see it, and would be left without checking the attachment / detachment state again.

The present invention solves the above-mentioned drawbacks, pursues further simplicity of construction, reliability of fixation, stability of the fixation state, and there is no possibility of detachment due to wind pressure or the like. An object of the present invention is to provide an expansion joint that can sufficiently absorb fluctuations between skeletons in both narrow and wide areas and can sufficiently cope with a wide skeleton gap.

[0007]

In order to achieve the above object, an expansion joint according to the present invention is provided with a connecting member provided so as to straddle each supporting member fixed to an adjacent skeleton portion. And a bolt is inserted into each of the support members, a spring body is interposed in at least one of the bolts, the bolts are locked on the support member side and the connection member side, and a cover body is attached and fixed to the connection member. Either a structure for covering the frame gap is provided , or a connecting member is provided so as to straddle each supporting member fixed to the adjacent frame portion, and bolts are respectively provided on the connecting member and each supporting member. , A spring body is interposed in each bolt, the bolts are locked on the support member side and the connection member side, and both members are relatively variably connected by expansion and contraction of the spring body. Cover body for members Be one having a configuration which is adapted to cover the precursor gaps are adhered fixed, have the following configuration
It is characterized by having two or more.

The above-mentioned bolt has a bolt head at one end, and a stop blade fixed at the other end to a shaft orthogonal to the bolt shaft and rotatable in the bolt axis direction and the orthogonal direction. It is characterized by having a configuration in which one of the head and the stop blade is locked on the support member side and the other is locked on the connecting member side.
I do.

The cover body and the connecting member are spaced from each other by a skeleton.
Having a configuration slidably connected in a continuous direction
It is characterized by. In this case, the bolts are
Insert and lock the long hole formed in the width direction
Is preferred. Further, characterized in that the cover member and the coupling member having an interposed spring member, and the axial direction is connected so as to be slidable against the spring pressure by a bolt which faces the precursor gap continuous way configuration And

[0010] 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 below the locking portion. A supporting member main body having a configuration in which a portion is formed,
Characterized in that in a combination arrangement of the bolt member having an end portion configured for the formation of the locking portion engageable with the engagement portion of the appropriate size of the piece member including a bolt insertion portion
And

[0011]

[Function] Since the supporting member fixed to the frame and the connecting member straddling the frame are connected by bolts with a spring interposed therebetween, the connecting member and the cover connected thereto are constantly pressed against the frame. At the same time, the connecting member can be freely displaced with respect to the supporting member by the spring pressure, and the fluctuation in the bolt axis direction is caused by expansion and contraction of the spring body, and the fluctuation in the direction crossing the bolt axis is relative to the supporting member. By moving horizontally or horizontally, the fluctuation of the frame can be absorbed. 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 more greatly absorbed, and the cover can be slidably connected to the connecting member by the spring member. Since the body can change relatively, the change can be absorbed more.

Further, since the bolt is locked, the connection between the support member and the connecting member and the connection between the connecting member and the cover body do not come off as in the fitting method. By interposing a spring body between the bolts on both sides, it is possible to further increase the absorption width of the skeleton variation. If the bolt has a bolt head at one end and a stop blade at the other end, the spring body is compressed to make the stop blade 90
° Rotation only suffices, bolt locking operation is easy, and there is no risk of loosening and detachment like nuts
In addition, since there is no need for a bolt tip portion protruding from the spring body by a considerable length, no extra gap is required for receiving the bolt tip portion. If the support member has a configuration in which the bolt insertion member is locked with respect to the support member main body, only the bolt insertion portion needs to protrude into the skeleton gap, so that substantially the entire width of the skeleton gap is wide open. Work inside the gap can be performed remarkably.

[0013]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2 to 5, the expansion joint as the first embodiment of the present invention includes support members 1, 1, 1. A connecting member 2 having an appropriate width, which is connected across the two supporting members 1, 1, and the supporting members 1, 1 and both sides of the connecting member 2 are interposed by spring bodies 4, 4 and spring members 5, 5. Bolts 3, 3 and connecting member 2 that are connected to each other so that they
And a bolt 7 for variably connecting the connecting member 2 and the cover body 6 with a spring body 8 interposed therebetween. I have.

The support members 1, 1 are, as shown in FIGS.
Each member is fixed to an adjacent skeleton by an anchor bolt or the like, and is made of aluminum, stainless steel, or other appropriate metal material. It is formed in combination with the bolt insertion member 10. The support member main body 9 has a bent end 9b along the corner of the skeleton at the end of the plate portion 9a to be fixed to the skeleton, and a groove cross-section bulges on the inner side surface of the skeleton at the bent end. A groove-shaped locking portion 9c is formed in the shape of a dovetail, and a groove surface on the tip end side of the bent end portion of the locking portion 9c is appropriately extended outward to form a jaw-shaped surface portion 9d.
A waterproof sheet engaging portion 9e for engaging an edge portion of the waterproof sheet S is formed on the distal end side of the bent end portion, and a projection 9f having a length slightly from the vicinity of the distal end portion of the plate portion 9a toward the outside of the body is formed. It is formed.

The bolt insertion member 10 is slidably engaged with the groove-shaped locking portion 9c, and has a cross-section which does not disengage when pulled in the width direction of the frame gap (left-right direction in FIG. 1). A convex engaging portion 10a having a dovetail shape such as a tip bulge is formed at the original end, and in this engaged state, the plate portion 9 is formed.
a plate portion 10c having a corner portion 10b abutting on the front end portion of the plate portion 9a and having a slight length in the extension direction of the plate portion 9a;
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 body 9 is appropriately long or long in the continuation direction of the frame gap (the front-rear direction perpendicular to the paper surface in FIG. 1), while the bolt insertion member 10
Need only be formed at attachment points where the connecting members 2 are disposed at appropriate intervals, and therefore may be formed as a piece member having an appropriate width.

The support member main body 9 having the above-described structure is fixed to the frame A (B) with anchor bolts or the like so that the bent end 9b is aligned with the end of the frame A (B). The support member 1 is formed by connecting the bolt insertion member 10 by sliding the engagement portion 10a in the groove direction to engage with the engagement portion 9c to thereby engage the bolt insertion member 10.

The support member main body 9 and the bolt insertion member 10 are connected to each other by the above-mentioned engagement, the corner 10b being in contact with the end of the plate 9a, and the lower surface of the engagement 10a being in contact with the jaw-shaped surface 9d. They are integrally connected without rattling and do not separate in the width direction of the skeleton gap, but can slide in the groove direction of the locking portion 9c. Therefore, when the support member main body 9 is a long material, a plurality of desired bolt insertion members 10 are mounted, and when connecting the connection members 2, the individual bolt insertion members 1
0 can be freely slid to a predetermined position. The connecting end of the engaging portion between the support member main body 9 and the bolt insertion member 10 is swaged and deformed, or a wedge is driven between the joining surfaces of the engaging portion, or both portions of the engaging portion are inserted. The connection between the support member main body 9 and the bolt insertion member 10 can be further firmly performed by inserting the pin, caulking and fixing, or the like.

The support member 1 has a structure other than the above structure.
For example, it can be configured as shown in FIG. FIG.
The support member 101 of FIG.
And the plate portion 10c become a continuous and integral plate portion 101a, and an inner fold portion 101b of an appropriate length along the corner of the skeleton is formed to protrude inside the front end portion, and a waterproof sheet locking portion 101c is provided at the front end portion. A projection 101d formed outwardly and protruding outward in the vicinity of the same portion is formed as a projection 101 parallel to the tip of the plate portion 101a.
e can be formed, and a bolt insertion hole 101f can be formed in a plate portion between the protrusion 101e and the bent portions 101b to 101d. However, the configuration of the support member 1 is more than that of the bolt insertion member 10.
This is more preferable because the space between the supporting members 1 and 1 at the portion where the bolt is not locked is widened to facilitate the workability in the gap between the skeletons, and the position of the bolt insertion member 10 can be arbitrarily shifted.

The supporting member 102 shown in FIG.
Is a plate 1 similar to the plate 101a of the support member 101.
An inner bent portion 102b is formed along the corner of the skeleton at an intermediate portion of 02a, a protrusion 102c is formed outside thereof, a waterproof sheet locking portion 102d is formed inside a tip portion of the plate portion 102a, and a tip side of the protrusion 102c is formed. A bolt insertion hole 102e is formed in the plate portion, and a protrusion 102f having the same length and parallel to the protrusion 102c can be formed outside the distal end of the plate portion as necessary. Even in this case, the structure of the support member 1 makes it possible to widen the space between the support members 1 and 1 at the portion where the bolt insertion member 10 is not locked, thereby facilitating the workability in the frame gap. Is more preferable because the position can be arbitrarily shifted.

Although not shown, in the support member 101 of FIG. 7 (A), only the portion where the bolt insertion hole 101f is formed is left, and the other portion, that is, the plate closer to the tip end (body gap side) than the projection 101d. If the portion 101a is cut off, the supporting member 1 will be in the same form as the fixing form as a result, and such a form can also be adopted. But,
In this case, the cutout processing cost becomes large, the material of the cut-out portion is wasted, and the pitch cannot be set on site.

In any of the above examples, the connection structure between the support member main body 9 and the bolt insertion member 10 is not limited to the above example. Projections 9f and 10d, 101d and 101
e, 102c and 102f can be formed as protruding surfaces, in which case both protrusions can replace one continuous protruding surface. The projections 9f and 10d, 101
d and 101e, 102c and 102f may be formed respectively in only one of them. The degree of protrusion of these protrusions or protrusion surfaces, and the plate portions 10c, 101a,
The extent of overhang of 102a into the skeleton gap is determined by the skeletons A and B
Can be set appropriately so that the displacement angle of the connecting member 2 that is displaced when the value fluctuates can be increased.

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 connected to the projections 9f and 10d of the supporting members 1 and 1 fixed to the frames A and B, respectively. Bottom 2 of appropriate length that can be installed across
a, and side surfaces 2b raised on both sides in the continuation direction of the body gap,
2b and a projecting piece 2 projecting slightly inward at an intermediate portion between the inner sides of both sides to maintain a gap between which spring members 5 and 5 can be arranged.
c, 2c, and long bolt insertion holes 2d, 2d capable of inserting bolts 3 in the bottom surface 2a of the support members 1, 1 facing the bolt insertion holes 10e and extending long in the body gap width direction. It is formed. Although not shown, the bolt insertion slot 2d may be a cross-shaped slot, and the overhanging pieces 2c, 2c may not be formed.

The bolt 3 is, as shown in FIGS.
The tip of the bolt 3b having the bolt head 3a is
c, and a shaft stopper 3d is provided straddling the forked portion. The shaft stopper 3d is provided with a rod-like or elongated plate-like stopper blade 3e.
Is rotatably fixed to the shaft. Although the bolt may be a male screw body, it may be a rod body that does not form a male screw, and the meaning of the bolt in the present invention is not limited in this respect. When the stop blade 3e is positioned coaxially with the bolt, one end of the stop blade 3e protrudes from the tip of the forked portion 3c with an appropriate length. Both ends project in a cross shape,
One end of the spring body 4 described later is set to a length that can be locked at the projecting ends, and the one end is formed so as to protrude appropriately longer than the other end so as to be easily operated. A hole 3f is formed near the end of this one end.

It should be noted that the bolt 3 can be tightened at its tip end with a nut or a cap nut, similarly to a normal bolt with a bolt head. However, considering the burden of tightening the nut, the loosening of the nut over time, and the presence of unnecessary protrusions on the bolt tip side, the bolt 3 is more practically useful.

The spring body 4 is, as shown in FIGS.
A coil-shaped compression spring, in which a bolt 3 is inserted through the supporting member 1 and the connecting member 2, and one end thereof is locked with the spring member 5 interposed between the connecting member 2 and the body gap of the supporting member 1. With the other end of the bolt protruding inward, the bolt is mounted in an appropriately compressed state on the protruding bolt, and the other end of the bolt (in FIG. 1, the bolt head is used upside down as shown in FIG. 10). (Which may be a stop blade 3e).

The spring body 4 is most preferably the above coil spring. However, as shown in FIG. 8 (A), a bolt insertion hole is formed at each central portion of the continuous folded-back piece, and locking pieces are provided at both upper and lower ends. The plate spring 4A may be formed as shown in FIG. 8 (B). As shown in FIG. 8 (B), locking pieces are formed opposite to each other in a U-shape, and bolt insertion holes are formed in the locking pieces. The spring may be a spring 4B or a bent leaf spring 4c having a hexagonal cross section as shown in FIG. 8C, and a W-shaped leaf spring such as a conventionally known W spring (not shown). And any other suitable configuration.

Next, as shown in FIGS. 1 and 3, the spring member 5 has a flat surface 5b at a middle position between the W-shaped pieces 5a, 5a, and a bolt insertion hole 5c in the flat surface. The connecting member 2 is formed with a width that can be set between the overhanging pieces 2c, 2c. The bolt insertion hole 5c may be a round hole, but may be a long hole. This spring member 5 is preferably used, but does not have to be an essential component.

According to the above configuration, the fixed support members 1 and
1 and the spring members 5 and 5 are disposed in the bottom surface 2a of the connection member 2 so that the bolt insertion holes (for the spring member 5, the connection member 2 and the support member 1) are provided. The bolt 3 is inserted through the long holes 5c, 2d, and 10e, and the bolt head 3a is engaged with the spring member 5 (with an optional washer). Then, as shown in FIG. Attach the spring body 4 to the bolt portion protruding inward of the body gap (wearing a washer at the tip of the spring body 4 is optional),
As shown in (B), the spring body 4 is pulled out of the gap (in the direction of the arrow) of the spring body 4 by using a jig as appropriate.
Is compressed, the stop blade 3e is rotated in the direction perpendicular to the bolt as shown in FIG. 2C, and the spring body 4 is opened to be locked on the stop blade 3e. The member 2 is connected to the support members 1 and 1 by bolts in an elastic pressure state.

As shown in FIG. 1, the cover 6 has a surface plate 6a having a width and a long length sufficient to cover the skeleton gap, and folds both ends in the width direction of the skeleton gap. Side plates 6b, 6b for closing gaps between the curved body surfaces A, B;
One end is fixed to the end of each of the side plates 6b, 6b, and the other end is pressed against the surfaces of the skeletons A and B, and is formed so that a gap is not formed even if the distance between the side plate and the skeleton changes. And sealing members 6c, 6c. The seal member 6c may be formed of a leaf spring material, a rubber material, a foam material, or the like into an appropriate form that can be expanded and contracted.

As shown in FIGS. 1, 3 and 5, the cover 6 is connected to the connecting member 2 in a U-shaped cross section in which side plates 11b and 11b are bent at both ends of a flat plate 11a. In addition, both side plates 6 near both ends of the connecting member 2 are provided.
b, 6b, while maintaining an appropriate distance between the side plates 11b,
A mounting member 11 to which 11b can be fitted so as to be able to face each other, and both side plate portions 11b, 11b and both side plates 6b, 6 located therebetween.
b, and a spring body 8, 8 consisting of a coiled compression spring interposed in a bolt portion between the side plate portion 11b and the plate portion 6b, which can be fastened by passing through a through hole formed in advance. The flat plate portion 11a of the mounting member 11 is brought into contact with the back surface of the front 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 is performed. The part is sealed. The bolt 7 may have the same configuration as the bolt 3, or may have a nut fixing configuration or the like. Further, as shown by a chain line in FIG.
It is also possible to adopt an inner fitting type in which the connecting member 2 is fitted into the space between the side plates 6b, 6b while maintaining a sliding gap.

The attachment of the spring body 8 in the above-described connection configuration may be of any configuration as long as the attachment member 11, ie, the cover body 6 can slide with respect to the connection member 2.
For example, as shown in FIG. 9A, the spring body 8 may be interposed only between one side plate portion 11b and the side plate 6b, or as shown in FIG. 9B, the flat plate portion 11a of the mounting member 11. A W-shaped spring body 8a is formed by projecting spring pieces on both sides opposite to each other from the fixed portion fixed to the back surface. When both ends of the spring piece are appropriately compressed, both side plates 6b,
6b may be installed so as to be pressed against the inner surface.

According to the expansion joint constructed as described above, as shown in FIG. 6 (A), when the distance between the frames A and B relatively fluctuates, the support members 1 and 1 fixed to the frames are changed. If the positions are different, the connecting member 2 abutting on the projections 9f, 10d is pushed by this and tilts, but the end of the connecting member 2 is separated from the support member 1 on the side of the frame A which is shifted outward, so that the spring The bolt 3 is pulled while the body 4 is compressed, and the connecting member 2
Although the end of the bolt approaches the skeleton side, the bolt 3 insertion portion separates from the support member 1 with the projection 9f as a fulcrum, so that the bolt 3 is pulled while compressing the spring body 4,
In any case, only the bolt 3 is displaced in the axial direction due to the elasticity of the spring body 4, without causing deformation or breakage of the support member 1 and the connecting member 2, and following the fluctuation of the skeleton to absorb it. Can be.

If the frames A and B further fluctuate further, as shown in FIG. 3B, the fluctuation range of the spring body 4 and the bolt 3 becomes large, and the connecting member 2 on the side of the frame B displaced inward. Even if the end portion is pressed against the body surface and the connecting member 2 is separated from the projection 9f, the fluctuation can be absorbed as long as the spring body 4 and the bolt 3 are within the movable range.

In any of the above cases, the retaining blade 3e at the tip of the bolt 3 is more strongly locked to the end of the spring body 4 due to the elastic pressure resistance of the spring body 4 and does not come off. In addition, since the spring member 5 is elastically deformed, it cooperates with the spring body 4 to absorb the fluctuation of the frame and to maintain the locking of the bolt 3 in a stable state.

Note that the supporting members are the projections 10d and 101e.
Alternatively, in the case of a configuration in which 102f is not formed, as shown in FIG. 10, the connecting member 2 portion of at least one of the bolt 3 insertion portions approaches the support member 1 portion, and the bolt 3 is accordingly reduced. Offset to absorb fluctuations.
In this case, the spring body 4 receives a restoring force from an appropriately compressed state and does not cause rattling.

Further, the displacement in the frame gap width direction is such that the bolt 3 can relatively move by the length of the elongated hole 2d of the bolt 2d of the connecting member 2, so that the supporting member 1 and the connecting member 2 can be relatively changed, and The elasticity of the body 4 and the spring member 5 also works to absorb the displacement. Furthermore, the displacement of the skeleton in the continuation direction of the skeleton is caused by the fact that the bolts 3 and 3 can be slightly rotated with respect to the support members 1 and 1 and the connection member 2. Can be absorbed by the relative displacement of the spring member 8 and the connecting portion between the connecting member 2 and the cover member 6 can be deformed if the bolt 7 and the spring member 8 are provided as described above. Since the bolt 7 can be displaced by the distance, the cover body 6 and the connecting member 2, that is, the support members 1, 1 can be relatively displaced, and the displacement can be absorbed in a larger range. If the insertion holes (elongated holes) of the bolts 3 are formed as elongated holes in the same direction, the deviation can be absorbed even in this portion. In this way,
Since the fluctuation of the frame can be absorbed, the connecting member 2 to the cover 6
The cover body 6 can be maintained in a stable closed state without being detached or damaged.

As shown in FIG. 7B, the supporting member is a waterproof sheet locking portion 1 which engages the edge of the waterproof sheet S.
If 02d is formed in the gap between the frame and the bolt insertion hole 102e, rainwater permeated from the bolt insertion hole 102e cannot be received by the waterproof sheet. However, as shown in FIG. 2 and FIG. 10e, 101f, the waterproof sheet retaining portions 9e, 10
With the configuration in which 1c is formed, the latter is more preferable because the waterproof sheet S can receive infiltrating rainwater.

Further, the work of mounting the bolt 3 and the spring body 4 and the work of mounting the waterproof sheet S are performed using the inside of the skeleton after the support member is fixed to the skeleton, so that the skeleton gap is not reduced as much as possible. It is preferable to use a support member configuration. The support member main body 9 and the bolt insertion member 1 shown in FIG.
According to the combination configuration of No. 0, only the bolt insertion member 10 protrudes, but the other portions do not protrude from the support member main body 9 into the skeleton gap. This is also preferable to the integrally molded structure because the above operation can be easily performed.

Next, a more preferable example of the use configuration of the bolt 3 will be described with reference to FIGS. The expansion joint of this embodiment is the same as the embodiment of FIG. 1 except that the bolt 3 is used in the opposite direction, and the other configuration is the same. Although the spring member 5 may or may not be used, a configuration not used 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 mounted on the bolt 3 and one end thereof is locked on the bolt head 3a. While being inserted through the insertion hole 10e, the tip is inserted or made to face the bolt insertion long hole 2d of the connecting member 2, and a washer Y is placed on the long hole 2d in advance, and the tip of the pulling jig T is appropriately formed. Hook the part into the hole 3f of the stop blade 3e, or pick the tip of the stop blade 3e with a picking jig,
The stop member 3e is passed through the bolt insertion slot 2d to connect the connecting member 2
When the jig is removed at the same time as the stopper blade 3e is rotated as shown in FIG. 7B to make it orthogonal to the bolt axis, the stopper blade 3e is connected as shown in FIG. 2 is locked to the bottom surface 2a, and the connection is completed without coming off from the bolt insertion slot 2d. Stopcock 3e
Is not detached from the elongated hole 2d by the washer.

According to this configuration, the operation of compressing the spring body 4 and locking the bolt 3 only requires pulling the retaining blade 3e at the tip of the bolt 3 from the outside. Since it is not necessary, it is simple and easy, and at the same time, has excellent reliability, and is more preferable than the above embodiment.

FIGS. 13 and 14 show another embodiment different from the above. The expansion joint shown in FIG. 13 has a support member 10 shown in FIG.
1 (without forming the projection 101e), 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 in the same manner as in the above embodiment. However, for the other skeleton B,
A bolt 13 for tightening the nut is used, and the bolt head is engaged with a spring member 5 provided in the connecting member 2 so that the bolt is inserted into the bolt insertion hole 5c and the bolt insertion slot 2 of the connecting member 2 is inserted.
d, inserted 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 is fixedly provided at a contact portion between the bottom surface 2a of the connecting member 2 and the protrusion 101d of the support member 101. Hinge 14 is projection 10
1d, but may or may not be fixed to the bottom surface 2a of the connecting member 2. In addition, the hinge 14 is a plate (not shown) that extends along the outer surface of the bottom surface 2 a of the connecting member 2.
And the projection 101d.

According to this expansion joint, the connecting member 2 that fluctuates following the fluctuation of the frames A and B
Has the hinge 14 as a pivot, is inclined with the deformation of the spring member 5, and otherwise operates in the same manner as in the above embodiment. If the plate on which the hinge 14 is fixed is joined to the bottom surface 2a,
Since the two can be shifted freely, it is possible to sufficiently cope with the fluctuation in the horizontal direction.

In the embodiment of FIG. 14, the supporting members 1 and 1 of the above embodiment are used in place of the supporting member 101 in the embodiment of FIG. As shown in FIGS. 11 and 12, a bolt 3 with a spring 4 attached thereto is inserted into the support member 1 from the inside of the body gap as shown in FIGS. 11 and 12, and is locked inside the connection member 2 by a retaining blade 3e. The configuration is the same as that of the embodiment.

In addition to the above, various modifications in accordance with the above technical concept are possible, and the present invention includes these modifications. Further, the projections 9f, 10d, etc. may be formed on the bottom surface 2a side of the connecting member 2 without being formed on the support member 1.

FIG. 15 shows an example of an expansion joint that closes the gap between the cross-shaped outer surfaces of the skeleton. The expansion joint according to the present invention has a different mounting surface. Is also applicable. In the figure, the outer surface of the skeleton B is installed orthogonal to the outer surface of the skeleton A, and a gap is formed between the surface of the skeleton A and the corner of the skeleton B.

In this case, the same support member 1 as in the above embodiment is fixed to the frame B, and the frame A is bent without bending the bent end 9b of the support member body 9 to the frame A. The support member body 9 is configured to be extended on the same plane as the portion 9a.
1 is fixed. That is, the support member main body 91 is formed by a main body portion 91a that is a frame fixing portion and an extension portion 91b that is a connection portion, and a groove-shaped groove having a groove cross-section on the outer surface of the extension portion 91b such as a middle bulge. A locking portion 91c is formed, and a groove surface on the distal end side of the locking portion 91c is appropriately extended outward to form a jaw-shaped surface portion 91d, and the edge of the waterproof sheet S is further engaged with the outer edge of the jaw-like surface portion 91d. A waterproof sheet engaging 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 the cover body 6 except that one side plate 61b of the surface plate 61a is provided.
The configuration is such that the skewed position is bent outward at a right angle so that it can be closed over both frames A and B. The construction method may be the same as that of the above embodiment, except that the direction of the mounting surface is changed.

[0049]

According to the expansion joint of the present invention, a base body is provided between the two main bodies, and this base body is connected to the main body side by bolts with a spring interposed therebetween. It can be installed regardless of the size of the gap between the gaps, and the fluctuation of the frame can be absorbed by the elastic deformation of the spring body and the displacement of the bolt with respect to the bolt insertion hole. By connecting the connecting members 2 with each other, the fluctuation of the skeleton can be absorbed more sufficiently and surely, and further, even if the fluctuation of the skeleton is received, there is no possibility that the connecting member is detached from the skeleton side.

If the bolt has a stop blade rotatably at its tip, the workability of attachment, the reliability of locking, and the space utilization due to the small number of protruding portions are all more effective. can do. If the bolt is connected to the connecting member so as to be able to be displaced by a long hole or the like, the range and direction in which the fluctuation of the frame is absorbed is widened. The same applies to the case where the bolt is locked to the connecting member with the spring member interposed therebetween, and the fluctuation absorption can be improved.

If the cover body and the connecting member are slidably connected, the fluctuation absorption of the frame body is further increased, and the stability of the closed and connected state of the cover body is not impaired. In particular, by connecting via a bolt with a spring body interposed,
Greater stability. If connecting with bolts,
It is possible to eliminate the possibility that the cover body is detached by wind pressure or the like. In addition, if the support member is formed by connecting the support member main body and the bolt insertion member, the efficiency of the bolt mounting operation can be improved, and only the support member main body is installed except for the position where the bolt insertion member is installed, so that the gap between the skeletons is reduced. Can be maintained widely, so that work in the gaps between the skeletons can be made easier and materials can be saved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional side view showing a part of an expansion joint according to an embodiment of the present invention in a mounted state.

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

FIG. 3 is a sectional view showing the connecting member, the spring body, and the mounting 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, wherein FIG. 4A is a side view showing a process of mounting a bolt and a spring body, and FIG. FIG. 7C is a side view of a process of locking the tip end portion of the bolt, and FIG.

FIG. 5 is a cross-sectional view showing a connection structure of the attachment member (cover body) and the connection member of FIG. 1;

FIGS. 6A and 6B show a state in which the expansion joint of FIG. 1 follows the fluctuation of the skeleton. FIG. 6A is a side view showing a part of a slight fluctuation state, and FIG. It is a side view similarly.

7A and 7B show a modified example of the support member, FIG. 7A is a partial perspective view of one example, and FIG. 7B is a partial perspective view of another example.

FIG. 8 shows a modified example of the spring body, wherein (A),
(B), (C) is a perspective view of another modified example.

FIGS. 9A and 9B show a modification of the connection structure between the attachment member and the connection member, wherein FIG. 9A is a cross-sectional view of one example, and FIG. 9B is a cross-sectional view of another example.

FIG. 10 is a side view of a part of the expansion joint using a support member different from that of FIG.

FIG. 11 is a side view of a part of the expansion joint according to the embodiment, in which a part of the configuration is modified, showing a mounted state of the expansion joint.

12A and 12B show a connection structure portion between the support member and the connection member of FIG. 11, wherein FIG. 12A is a side view of a process of mounting a bolt and a spring body, and FIG. FIG. 7C is a side view of a process of locking the tip end portion of the bolt, and FIG.

FIG. 13 is a side view showing a state in which an expansion joint according to yet another embodiment is partially modified.

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

FIG. 15 is a side view showing an expansion joint mounted state of an embodiment different from the above embodiments.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support member 2 Connecting 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 (8)

(57) [Claims] 1. A connecting member is provided so as to straddle each supporting member fixed to an adjacent skeleton portion, and a bolt is inserted through the connecting member and each supporting member, and at least one of the bolts is inserted into a spring body. An expansion joint having a configuration in which a bolt is locked on the support member side and the connection member side, and a cover body is attached and fixed to the connection member to cover the body gap . , Bolts on one end
It has a bolt head, and the other end is fixed to an axis perpendicular to the bolt axis.
The stop blade that can rotate in the bolt axis direction and the orthogonal direction
With either the bolt head or the stop blade
A structure in which the other side is locked to the connecting member side on the supporting member side
Expansion joints. 2. A connecting member is provided so as to straddle each supporting member fixed to an adjacent skeleton portion, and a bolt is inserted through the connecting member and each supporting member, and a spring body is inserted into each of the bolts. With the interposition, the bolts are locked on the support member side and the connection member side, and the two members are relatively variably connected by expansion and contraction of the spring body, and the cover body is attached and fixed to this connection member <br / In the expansion joint having a configuration to cover the skeleton gap , the bolt is attached to one end.
It has a bolt head, and the other end is fixed to an axis perpendicular to the bolt axis.
The stop blade that can rotate in the bolt axis direction and the orthogonal direction
With either the bolt head or the stop blade
A structure in which the other side is locked to the connecting member side on the supporting member side
Expansion joints. 3. A straddle for each support member fixed to the adjacent skeleton portion.
In addition to disposing the connecting member so that
Insert each bolt into the support member and at least one
A spring body is interposed between the bolts and connected to the support member
It is locked on the member side, and the cover is attached and fixed to this connecting member
To cover the gap between the skeletons.
The cover body and the connecting part
The materials should not be slidably connected to each other in the
An expansion joint having a configuration . 4. A straddle for each support member fixed to the adjacent skeleton portion.
In addition to disposing the connecting member so that
Insert each bolt into the support member and
Also, with the spring interposed, the bolt is connected to the support member side and the connecting member.
Side, and the two members are relatively
It is connected movably and the cover is attached and fixed to this connecting member
To cover the gap between the skeletons.
The cover body and the connecting part
The materials should not be slidably connected to each other in the
An expansion joint having a configuration . 5. A straddle for each support member fixed to the adjacent frame portion.
In addition to disposing the connecting member so that
Insert each bolt into the support member and at least one
A spring body is interposed between the bolts and connected to the support member
It is locked on the member side, and the cover is attached and fixed to this connecting member
To cover the gap between the skeletons.
The cover body and the connecting part
For the material, the spring body is interposed and the axial direction is
The new bolt makes it slidable against spring pressure.
An expansion joint having a configuration that is connected as follows . 6. A straddle for each support member fixed to the adjacent skeleton portion.
In addition to disposing the connecting member so that
Insert each bolt into the support member and
Also, with the spring interposed, the bolt is connected to the support member side and the connecting member.
Side, and the two members are relatively
It is connected movably and the cover is attached and fixed to this connecting member
To cover the gap between the skeletons.
In the explosion joint, the cover body and the connecting member have a structure in which a spring body is interposed and connected so as to be slidable against spring pressure by a bolt having an axial direction that is a continuation direction of the body gap. expansion joints with. 7. A straddle for each support member fixed to an adjacent skeleton portion.
In addition to disposing the connecting member so that
Insert each bolt into the support member and at least one
A spring body is interposed between the bolts and connected to the support member
It is locked on the member side, and the cover is attached and fixed to this connecting member
To cover the gap between the skeletons.
In the explosion joint, the supporting member does not form a tip portion including a bolt insertion portion, forms a locking portion at an inner end of the body gap, and engages a waterproof sheet edge below the locking portion. A support member main body having a configuration in which a stop portion is formed, and a bolt insertion member having a configuration in which an engagement portion engageable with the locking portion is formed at one end of an appropriately sized piece member including a bolt insertion portion. An expansion joint that is a combination of. 8. A straddle straddling each support member fixed to the adjacent skeleton portion.
In addition to disposing the connecting member so that
Insert each bolt into the support member and
Also, with the spring interposed, the bolt is connected to the support member side and the connecting member.
Side, and the two members are relatively
It is connected movably and the cover is attached and fixed to this connecting member
To cover the gap between the skeletons.
In the kisspan joint, the support member
The tip part including the insertion part is not formed and
A locking part is formed at the end, and a waterproof sheet
Has a structure in which a waterproof sheet engaging portion for engaging the edge is formed
Of a suitable size including a supporting member body and a bolt insertion part
An engaging portion engageable with the locking portion is provided at one end of the piece member.
Combination with a bolt insertion member having a formed configuration;
An expansion joint.