JP2848519B2 - 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 the fluctuation of the two skeletons. It is what it was.

[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 a point, for example, a metal supporting member is fixed to both ends of the skeleton by an anchor bolt or the like, and a spring member having, for example, a substantially W-shaped cross section is provided so as to straddle both supporting members. Then, the both ends are fixed to the ends of the support member, and the fixing projections formed in the center of the back surface of the cover body are fitted from outside into the locking grooves formed in the middle part of the W-shaped spring. As a result, an expansion joint or the like is used in which the cover body is fixed to the W-shaped spring, and the fluctuation of the frame is absorbed by following the W-shaped spring.

In addition to the W-shaped spring, a structure in which bellows-like connecting members fixed to both supporting members are connected to each other, and a connecting member in which an intermediate portion of a plate-like member is formed to be deformable or slidable, is used for both supporting members. Linked configurations and the like are also known.

[0004]

However, in any of the known expansion joints, the cover body is fixedly connected to the connecting member by concave-convex fitting or the like, and the fluctuation of the skeleton is expected exclusively to follow the connecting member. Was what it was. In addition, in the case of fixing by uneven fitting, when unreasonable pressure due to fluctuation of the frame is applied, or when strong wind blows, especially when receiving a so-called sack wind where strong wind blows only from one longitudinal side of the cover body, etc. In some cases, the fitting may be separated. In addition, since this fitting portion is on the back surface of the cover body, it cannot be seen, so that it may be left without confirming the attachment / detachment state and fall off.

The present invention focuses on the above points, and pursues the simplicity of construction, as well as the reliability and stability of fixation, and eliminates the possibility of detachment due to wind pressure or the like. An object of the present invention is to provide an expansion joint that can follow a change and absorb the change.

[0006]

In order to achieve the above object, an expansion joint according to the present invention comprises a connecting member disposed on a supporting member fixed to both frames sandwiching a frame gap, and the connecting member is provided with the connecting member. In an expansion joint formed by attaching a cover that closes the skeleton gap, a bolt is inserted into a connecting portion between the connecting member and the cover, and a spring is interposed. It is configured to be relatively movable, and the shaft of the bolt
It is characterized by being installed so that the direction is the continuation direction of the frame gap . It is preferable that the connecting member is disposed on the supporting member so that the fluctuation between the two frames can be appropriately absorbed.

The spring body may be a coil spring attached to a bolt shaft. The spring body is fixed to one of the connecting member and the cover body and pressed against the other, so that the direction of expansion and contraction of the spring is set in the bolt axis direction. It can also be done. Also,
In any of the above, it is possible to adopt a configuration in which a mounting member is connected to the back surface portion of the connecting member, and a bolt is inserted through the mounting member and the connecting member.

[0008]

The fluctuation of the frame is absorbed by the connecting member and also at the connecting portion between the cover body and the connecting member. Moreover, since the connection of the cover body to the connection member is by bolt connection, the connection operation is simple, and there is no possibility that the cover body will be disconnected by external pressure. If the bolt shaft is provided in the direction of the continuation of the skeleton, the fluctuation of the skeleton in the direction of the continuation of the skeleton can be sufficiently coped with, and the unreasonable pressure applied to the cover body can be reduced.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. The expansion joint shown in FIG. 1 is one embodiment of the present invention, and the configuration of the support member, the connection member, and the like is not limited to these. The connecting member may be a single member or a plurality of connecting structural members. Further, the connection structure between the connection member and the support member is not limited to the following embodiment. The expansion joint includes support members 1 and 1 fixed to the frame gap edges on the outer surfaces of the adjacent frames A and B, a connecting member 2 having an appropriate width connected across both support members 1 and 1, Member 1,
1 and both ends of the connecting member 2 are variably connected via spring bodies 4 and 4 and spring members 5 and 5, respectively, and bolts 3 are attached to the connecting member 2 to close the body gap. The elongated cover body 6 to be formed, the mounting member 7 fixed to the back side of the cover body 6, and the mounting member 7 fixed to the cover body 6 and the connecting member 2 are variably connected via the spring body 9. The bolt 8 is a main component.

The support member 1 can be fixed to the frame A (B) with an anchor bolt or the like, and has a support portion for supporting the connecting member 2.
Any configuration may be used as long as the bolt 3 can be inserted, but in the figure, the configuration is as follows. That is, aluminum,
It is made of stainless steel or other suitable metal material, and each is formed as a combination of a support member main body 11 and a bolt insertion member 12 that protrudes and locks into the distal end portion thereof, that is, the gap between the frame members. The support member main body 11 has a bent end along the corner of the skeleton at the end of the plate portion fixed to the skeleton, along the corner of the skeleton. A groove-shaped locking portion 11a in the form of a groove is formed, and a groove surface on the distal end side of the bent end portion of the locked portion is appropriately extended outward to form a jaw-shaped surface portion. Tarpaulin S
A waterproof sheet engaging portion 11b that engages with the edge portion is formed, and a projection 11c having a slightly longer length is formed from the vicinity of the tip of the plate portion toward the outside of the frame.

The bolt insertion member 12 is slidably engaged with the groove-shaped engaging portion 12a, and has a cross-section which does not disengage when pulled in the frame gap width direction (left-right direction in FIG. 1). A convex engaging portion 12a having a dovetail shape such as a bulge is formed at the base end, and in this engaged state, the engaging portion 12a has a corner portion that comes into contact with the tip portion of the plate portion, and is slightly extended in the extension direction of the plate portion. A plate portion 12b having a length is formed, and a plate portion 1 is formed.
The protrusion 12c is bent from the tip of 2b to form a protrusion 12c having the same length and parallel to the protrusion 11c, and a bolt insertion hole is formed in the plate surface portion 12c. The support member main body 11 is appropriately long or long in the continuation direction of the frame gap (the front-rear direction orthogonal to the paper surface in FIG. 1), while the bolt insertion member 12
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 11 having the above-mentioned structure is fixed to the frame A (B) with anchor bolts or the like so that the bent end thereof is aligned with the end of the frame A (B). The support member 1 is formed by connecting the bolt insertion member 12 by sliding the engagement portion 12a in the groove direction to engage with the stop portion 11a. The support member main body 11 and the bolt insertion member 12 do not separate in the body gap width direction, but can slide in the groove direction of the locking portion 11a. Therefore, when the support member main body 11 is a long material, a plurality of desired bolt insertion members 12 are mounted, and when the connection member 2 is connected, the individual bolt insertion members 1
2 can be freely slid to a predetermined position. The support member main body 11 and the bolt insertion member 12
Alternatively, a support member formed integrally with the above may be used.

As shown in FIGS. 1 and 2, the connecting member 2 is made of aluminum, stainless steel, or other suitable metal material.
It has an upward U-shaped cross section having a bottom surface 2a and side surfaces 2b, 2b, has an appropriate length that can be installed across each projection of the support members 1, 1, and has a bolt 3 in the bottom surface 2a. Are formed, and are provided with long bolt insertion holes 2c, 2c which are bored long in the body gap width direction.

As shown in FIGS. 1 and 2, the bolt 3 has a forked portion 3a at the tip end of the bolt having a bolt head, and a stop shaft portion provided between the forked portions to form a rod-shaped or elongated plate-shaped stopper. The blade 3b is rotatably fixed to the shaft, and the stopper blade 3b extends in the bolt axis direction, and can be rotated in the orthogonal direction to form a T-shape. The bolt may be a male screw body, or may be a rod body having no male screw. Although not shown, a normal bolt and nut may be used.

As shown in FIGS. 1 and 2, the spring body 4 is a coil-shaped compression spring which is used by being inserted into a bolt 3.
However, it is not limited to a coil shape. Spring member 5
Can form a flat surface in the middle of the W-shaped part at the middle position between the two W-shaped pieces, form a bolt insertion hole 5a in this flat surface, and arrange it inside the bottom surface 2a of the connecting member 2. is there.

According to the above configuration, the connecting member 2 is disposed so as to straddle the supporting members 1 and 1 fixed to the frames A and B, and the spring members 5 and 5 are disposed within the bottom surface 2a of the connecting member 2. Then, the bolt 3 is inserted into the bolt insertion hole (elongated hole) of each of the spring member 5, the connecting member 2 and the support member 1, and the bolt head is engaged with the spring member 5, so that the bolt portion protruding inward into the gap between the frames is formed. The spring body 4 is mounted so that the leading end side of the spring body 4 is pulled outwardly (in the direction of the arrow) of the frame body with a jig as appropriate.
Is compressed, the stop blade 3b is rotated in the direction perpendicular to the bolt, and the spring body 4 is released and locked on the stop blade 3b, whereby the connecting member 2 is pressed against the support members 1, 1 by elastic pressure. It is connected with a bolt in a state.

The bolt 3 can be used upside down. In this case, after inserting the spring body 4 in advance on the bolt head side, the bolt 3 is inserted from the support member 1 to the connecting member 2, and the bolt tip is pulled from outside the connecting member 2 to be locked. Comes. The workability is superior to the above example. The bolt may be a normal bolt. In the case of a normal bolt, the spring body 4 may be compressed and the nut may be screwed.

In this manner, the connecting member 2 is slidable with respect to the supporting members 1 and 1, that is, the frames A and B, by the bolt 3 and the spring body 4, the elongated hole 2c of the connecting member 2, and the spring member 5. Therefore, it can follow the fluctuation of the frame and absorb it.

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 skeleton gap, and folds both ends in the width direction of the skeleton gap. Side surfaces 6b, 6b that are curved and close the gaps with the body surfaces A, B
One end is fixed to the end of the side plates 6b, 6b, and the other end is pressed against the skeletons A and B surfaces, and follows even if the distance between the side plates and the skeleton surface fluctuates so that no gap is formed. And the sealing members 6c, 6c of any form.

The connection structure between the cover body and the connection member, which is a feature of the present invention, is as shown in FIGS. 2 to 5, and is attached to the back surface of the front plate 6a of the cover body 6. A member 7, a bolt 8, and a spring body 9 are provided. The attachment member 7 includes side plate portions 7b,
7b is formed in a U-shape in cross section, and a through hole 7c for a bolt 8 is formed in a side plate portion 7b, and a suitable space is provided outside both side surfaces 2b, 2b in the vicinity of both ends of the connecting member 2. The side plate portions 7b, 7b can be fitted so as to face each other while being maintained.

In the example shown in FIGS. 2 and 3, each side plate portion 7b, 7b of the mounting member 7 fitted to the connecting member 2 and the side surfaces 2b, 2
b, a bolt 8 is inserted through an insertion hole previously drilled in the b. At this time, the spring bodies 9, 9 as coiled compression springs are appropriately compressed between the inside of the side plate portion 7b and the outside of the side surface 2b. Each of the bolts 8 is inserted and interposed, and the tip of the bolt 8 is fixed. The bolt 8 may have the same configuration as the bolt 3, or may be a bolt nut or the like.

A cover body 6 is attached on the mounting member 7, and the cover body 6 is fixed with screws, rivets or other appropriate means, preferably by a waterproof seal. It is preferable that the thickness of the portion of the mounting member 7 near the fixing portion is appropriately increased. In this way, the cover body 6 and the connecting member 2 can slide with each other, and there is no play due to the elastic pressure of the spring body 9. The attachment member 7 may be of an inner fitting form in which the sliding member is fitted inside the side surfaces 2b, 2b of the connecting member 2 while keeping a sliding gap as shown by a chain line in FIG.

FIG. 4 shows a spring 9 different from the above embodiment.
Is provided only on one side of the mounting member 7 and the connecting member 2. The present invention can be suitably applied to a portion where relative fluctuation is assumed to be relatively small.

FIG. 5 shows still another embodiment, in which a spring member such as a W-shaped spring member is formed by projecting spring pieces on opposite sides outward from a fixed portion fixed to the back surface of the flat plate portion 7a of the mounting member 7. 10, the both ends of the spring piece are placed so as to be pressed against the inner surfaces of both side plates 2b, 2b of the connecting member 2 in an appropriately compressed state. The mounting of the spring body 9 in the above connection configuration is performed by attaching
May be any configuration as long as it can slide with respect to the connecting member 2.

According to the expansion joint constructed as described above, when the relative movement between the frames A and B is made, the inward and outward fluctuations of the frame can be absorbed mainly by the action of the bolt 3 and the spring 4. Further, the fluctuation in the frame gap width direction is mainly absorbed by the bolt insertion hole 2c formed in the bottom surface 2a of the connecting member 2, and the fluctuation in the frame gap continuous direction is relative to the bolt 3 and the bolt insertion slot 2c. Although it can be absorbed by rotation and displacement, the cover 6
According to the connection structure between the bolts 8 and the spring members 9, 10, even if there is a large variation in the skeleton in the continuation direction of the skeleton,
And the cover body 6 is not overloaded.

According to the present invention, the skeleton surface of one wall (roof) or the like approaches the skeleton surface of the other wall (roof) orthogonally to the skeleton surface of the other wall (roof). Naturally, the present invention can be applied to a place where a body gap is formed. In this case, one of the support members has a structure in which one end and the other end are bent at a right angle, and the vicinity of one end of the surface plate 6a is bent outward at a right angle as a cover body. What is necessary is just to use the thing of a structure.

[0027]

As described above, the expansion joint of the present invention can cover the cover which straddles the two frames and closes the gap between the frames so that the cover can be slidably attached to the fluctuation of the frames. In addition, it is possible to provide an expansion joint that can absorb the fluctuation of the skeleton, does not lose or loosen the adhered state regardless of the fluctuation of the skeleton, and is hardly damaged. In addition, the cover body is slidably attached to a connecting member slidably connected to the support member fixed to the skeleton, so that it can slide sufficiently against any fluctuation of the skeleton. An expansion joint that can move and absorb this can be obtained. Further, if the slidable connecting structure is provided with a spring interposed therebetween, it is possible to more preferably cope with the fluctuation of the frame due to the elasticity of the spring. In particular, the connection between the cover body and the connecting member can be set to be slidable in the continuation direction of the skeleton gap, thereby further facilitating absorption of skeleton fluctuation in the direction most difficult to cope with in the conventional configuration. In addition, since the cover body is connected to the connecting member by bolts rather than by spring fitting, there is no possibility that the cover body will be detached from the connecting member even if it receives wind pressure or the like. , The certainty of the fixation and the stability of the fixation state can be realized.

[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 an exploded perspective view showing a connecting member and a connecting portion structure of FIG. 1;

FIG. 3 is a partial cross-sectional view of a connecting portion between a cover member and a connecting member, which is a main part of the present invention.

FIG. 4 is a partial sectional view showing a modified structure of FIG.

FIG. 5 is a partial sectional view showing still another modified structure of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support member 2 Connecting member 2a Bottom surface 2b Side surface 3 Bolt 3b Stopper blade 4 Spring body 5 Spring member 6 Cover body 6a Surface plate 7 Mounting member 8 Bolt 9 Spring body

Claims (5)

(57) [Claims] 1. An expansion joint comprising a connecting member disposed on a supporting member fixed to each of two frames sandwiching a frame gap, and a cover body covering the frame gap being attached to the connecting member. A bolt is inserted into the connecting portion between the member and the cover body, and a spring body is interposed.The connecting member and the cover body are configured to be relatively movable in the bolt axis direction, and the axial direction of the bolt is the same as the body gap continuous direction. Become
An expansion joint characterized by being installed as follows . 2. A cover member, wherein a connecting member is provided for a supporting member fixed to both frames sandwiching the frame gap so as to appropriately absorb fluctuation between the frames, and the connecting member closes the frame gap. In an expansion joint, a bolt is inserted into a connecting portion between the connecting member and the cover body and a spring body is interposed, so that the connecting member and the cover body are relatively movable in the bolt axis direction, and Bolt above
An expansion joint , wherein the axial direction of the expansion joint is set to be continuous with the skeleton gap . 3. The expansion joint according to claim 1, wherein the spring body is a coil spring attached to a bolt shaft. 4. A spring member is pressed against the other while fixed to one of the connecting member and the cover member, expansion joint according to any one of claims 1 to 3 expansion and contraction direction of the spring is set to the bolt axis . 5. A mounting member is connected to the rear surface portion of the connecting member, expansion joint according to any one of claims 1 to 4 volts and the connecting member and the mounting member is inserted through.