JPH0622005Y2 - Expansion joint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an expansion joint in which a gap between adjacent skeletons of a building is closed and a gap between the two skeletons can be absorbed.

(Prior art) When a building body gap, such as wall-to-wall, wall-to-roof, wall-to-floor, etc., is connected by directly fixing the rigidity, the building's expansion and contraction, ground change, etc. It becomes impossible to deal with fluctuations.

For this reason, a base material having support pieces extending in the gap width direction is fixed to, for example, the corners of both frames, and the gap width is set to 2/3 for both base materials.
A cover member having a gap extending portion having a width to be closed is attached to each cover member, and the cover members are slidably in close contact with each other with the tip ends of the gap extending portions being overlapped with each other by about ½. Then, a method of absorbing a variation of the skeleton along the gap or in the width direction is adopted.

(Problems to be solved by the invention) However, in the expansion joint having the above-described configuration, the width of the overlapped gap extending portion is only about 1/3 of the body gap, so that the entire gap extending portion of the cover material overlaps. The maximum width that each gap extension can move is only about 2/3 of the frame gap, because the gaps are close to each other, or only the edges are overlapped. The maximum movement width to the skeleton is about 1/3 of the body gap, and the total maximum movement width of the expansion approach is 2 / of the body gap.
3 is the limit. In other words, the skeleton gap had to be 1.5 times the expected maximum movement width of each skeleton.

The present invention has been made in order to eliminate the above-mentioned inconvenience, and provides an expansion joint that can make the body gap almost match the assumed maximum movement width of each body and also reduce the material of the cover material. It is something to do.

(Means for Solving the Problem) In order to solve the above problems, the present invention provides a base material fixed to one of the body parts along the body gap with a width of about the body gap width or more in the body gap direction. The overhanging cover material is fastened, and the base material fixed to the other skeleton part is fastened with a cover material having a bulging width in the skeleton gap direction of about half or less of the skeleton gap width. The cover material is characterized in that the cover surfaces are slidably arranged in parallel to form an expansion joint.

In addition, a cover material, which is extended in the body gap direction by about twice the width of the body gap, is fixed to the base material fixed to one of the body portions along the body gap, and fixed to the other body portion. A cover material with a width that fits roughly on the surface of the body is fixed to the grounded base material, and both cover materials are parallel so that the cover surface of the former cover material can slide on the cover surface of the latter cover material. The expansion joints may be arranged by arranging in a shape.

(Operation) If the skeleton moves in the gap width direction, the cover material slides, and when both skeletons approach, the wide cover material fixed to one skeleton is fixed to the other skeleton. Sliding on the cover material or the body surface absorbs changes in the body.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a mounting state diagram showing an embodiment of an expansion joint in which the corners of the skeleton are closed in the skeleton of the skeleton. The expansion joint 1 includes the corner portions of the left and right skeletons 20 and 21 (skeleton portion). ), The flexible fireproof zone 4 disposed between the two bodies, and the waterproof sheet 5 made of rubber or synthetic resin also disposed between the two bodies. Etc. as desired.

The closed member 2 includes a support plate 6a, a base material 7a, a rigid fixture 8a, and an inner cover material 9a supported by the base material 7a out of two cover materials arranged in parallel.

The plate 6a is made of stainless steel, a steel plate, or the like, on one side of which a mounting portion is formed that abuts and is fixed to a corner of the body, and on the other side of which an extending portion that extends obliquely into the gap is formed. It is a plate made of a rigid material, and small holes for inserting bolts are provided in the mounting portion and the extending portion, respectively. The support plate 6 need not be attached when the refractory zone 4 is not used.

The base material 7a includes a fastening portion 7aa formed of a plate body having an appropriate width formed by bending up and down both sides of a substrate provided with small holes for inserting bolts, and a gap side of the fastening portion. The support piece 7ab continuously provided on one side and the inward U-shaped protection frame member 7ac continuously provided on the other side are integrally formed, and are made of an appropriate rigid material such as stainless steel or a steel plate. . Support piece 7ab
Forms a piece extending in the gap direction with a length equal to or less than half the gap width through a rising portion bent forward from the end of the fastening portion 7aa, and covers the appropriate portion on the surface thereof. An appropriate number of screw holes for fixing the material 9a are provided, and when the cover material 9a is attached, the cover material 9a is supported so that its surface is substantially flush with the surface of the skeleton 20. In this case, the fastening portions of the base material 7a and the base material 7b, which will be described later, the support piece and the protective frame material may be integrated separately by welding, bolting or the like, and each plate material is bent. It is also possible to form them integrally.

The rigid fixture 8a is made of steel or other appropriate material that is sufficiently rigid and elastically deformable by external pressure, and the bolt 10 is structured such that its head is separated from the base material 7a. It has a fixing surface for receiving the head portion of the bolt 10 and a leg portion extending to both sides of the fixing surface so that the bolt 10 can be fixed.

The cover material 9a is a wide plate-shaped long exterior plate material made of an appropriate material such as aluminum or stainless steel, and has a body contact portion 9aa.
And a gap extending portion 9ab extending so as to be a flat surface continuous with the gap side of the skeleton abutting portion 9aa. The skeleton abutting portion 9aa has a lateral width of the fastening portion 7aa. The body side edge portions have substantially the same width and are bent rearward to form bent edge portions. The gap extending portion 9ab is the supporting piece 7a.
The width is approximately equal to or longer than the length of b, that is, approximately half the width of the gap, and the gap-side edge end is bent forward to form a front bent edge, and the rubber is A packing 9ac made of an appropriate elastic material such as synthetic resin is attached.

On the other hand, the closed member 3 includes a support plate 6b and a rigid fixture 8b having the same configuration as the closed member 2, and a base material 7b and a cover material 9b having a configuration partially different from the closed member 2. It has.

The base material 7b is a fastening portion 7ba which is substantially the same as the base material 7a.
Also, the support member 7bb is partially different from the protection member 7bc.
And have. The support piece 7bb is formed with a piece portion extending in the gap direction with a width that substantially matches the gap width via a rising portion that is bent forward from the end of the fastening portion 7ba. When the cover material 9b is attached, the cover material 9b is supported so as to slidably contact the front surface of the packing 9ac of the cover material 9a.

The cover material 9b is the body contact portion 9aa of the cover material 9a.
Body abutting portion 9ba configured in the same manner as described above, and cover material 9a
And a gap extending portion 9bb having a partly different structure from the above. The gap extending portion 9bb has at least the same width as or more than the body gap, and rises from the body abutting portion 9ba. And is extended to the gap side through the portion, and the gap side edge portion is bent rearward to form a rear bent edge portion, and a packing 9bc similar to the packing 9ac is attached to the edge portion. There is.

In order to attach the expansion joint 1 to the body, first, the supporting plate 6a having the edge portion of the refractory zone 4 fixed thereto by a suitable means such as a bolt is brought into contact with the corner portion of the one body 20 facing each other with a gap. Along with the waterproof sheet 5
Of the base material 7a, and then the fastening portion 7aa of the base material 7a.
The support piece 7ab so that the support piece 7ab extends in the width direction of the gap, and the rigid attachment 8a is applied to the fastening portion 7aa.
0 is screwed into the bolt holes on the body side through these screw holes and tightened to firmly fix the support plate 6a, the waterproof sheet 5 and the base material 7a to the body.

Subsequently, the supporting plate 6b to which the fire-resistant belt 4 is attached, the waterproof sheet 5 and the base material 7a are similarly fixed to the body 20 at a required number of intervals, and the base material 2 or 2 The cover material 9a is in contact with a required number of three or more, and each cover material is fixed to each base material 7a by an appropriate means such as a screw, and the edge portion of the body contact portion 9aa of the cover material 9a and the body An appropriate waterproof member such as a waterproof packing or filler is mounted between the 20.

On the other hand, a support plate 6b is attached to the other edge of the fireproof zone 4 at the corner of the other frame 21 as well, and the support plate 6b, the waterproof sheet 5 and an appropriate number of base materials 7b are attached in the same manner. The plurality of cover members 9b are fastened to the member 7b by fastening, and the packing 9ac is in contact with the back surface of the cover member 9b and the packing 9bc is in contact with the front surface of the cover member 9a so as to be slidable in parallel with each other. The materials 9a and 9b may be arranged, and a suitable waterproof member may be attached (caulking) between the edge portion of the body contact portion 9ba and the body 21.

Therefore, in the expansion joint of the present invention, when the skeleton moves in the direction in which the gap expands, the packings 9ac and 9bc slidably approach each other while closely contacting the back and front surfaces of the cover members 9a and 9b. When the skeleton moves in the direction in which the gap is narrowed, the packing 9ac slides on the back surface of the cover material 9b in the direction of the other side skeleton 21 and the packing 9bc slides on the surface of the cover material 9a to the skeleton 20. It is possible to absorb the fluctuation of the skeleton by moving, and it is possible to change each of the spread approaching with about half the width of the skeleton gap, and it is possible to set the maximum fluctuation width of the skeleton and the gap width as almost the same width. , The gap width can be fully utilized.

The surface portion of the skeleton 20 with which the packing 9bc slides and abuts when the skeleton changes in the direction of narrowing the gap width, the cover material 9a may be extended to the side opposite to the gap, or a separate plate may be used. If the cover 9a is continuously provided, the adhesion between the packing 9bc and the skeleton 20 can be improved and the rain can be improved.

Further, in the above-mentioned embodiment, the case where the entire or partial surface of the cover material is substantially flush with the respective body surfaces when the both cover materials are attached is described. As long as they can be arranged in parallel, they may be provided so as to project to the front of the body surface or be provided to the rear.

Further, in the above-mentioned embodiment, the rigid attachment which can be elastically deformed by the external pressure is used, but the present invention is not limited to this, and a washer having an arbitrary shape may be used.

According to the rigid attachments 8a and 8b, the elastic deformation of the rigid attachments 8a and 8b and the elastic deformation of the packings 9ac and 9bc are taken into consideration, and the movement of the skeleton in the orthogonal direction can be absorbed.

FIG. 2 is a sectional view of a mounting state showing another embodiment of the present invention, showing an expansion joint mounted between body surfaces intersecting in different directions.

The structure is the same as that of the above embodiment except the base material 7c and the cover material 9c of the member 3 to be closed which is fixed to the wall surface of the body 21 facing the corners of the body 20. The different structure will be described below. The base material 7c includes a fastening portion 7ca fixed to the wall surface,
The fixing portion 7ca is fixedly attached to one side of the fixing portion 7ca.
It has a support piece 7cb which is raised and extended in the 0 direction and a protective frame member 7cc which is fixed to the other side of the base material 7c. The cover material 9c is bent and extended from the body abutting portion 9ca toward the body 20 so that the gap extending portion 9cb having a width equal to or larger than the body gap extends along the base material 7c. In the same manner as the cover material 9b of the above-described embodiment, a rear bent edge is formed at the edge portion of the gap extending portion 9cb so that the packing 9cc is mounted and the body contact portion is formed. A bent edge is formed at the edge of 9ca. Therefore, the plurality of base materials 7c and the cover material 9 attached thereto
By arranging both the sliding surfaces in parallel so that the closed member 3 composed of c and the closed member 2 can slide, it is possible to absorb the fluctuation between the body surfaces that intersect in different directions.

FIG. 3 is a sectional view of a mounting state showing still another embodiment of the present invention, which has substantially the same structure as that of the first embodiment.
Explaining the different parts, the closed member 2 includes a cover material 9d having a width that substantially fits in a corner of the body and a base material 7 in which a supporting piece 7db is folded back inward so as to mount the cover material 9d.
d and. The lateral width of the cover material 9d may be appropriate, but may be shorter than half of the lateral width of the gap extending portion 9eb of the cover material 9e described later, or may be approximately the same width. The closed member 3 includes a cover material 9e having a gap extension portion 9eb formed with a width that is approximately twice or more than twice the gap width, and the width of the cover material that mounts and supports the cover material 9e. The support member 7eb is slightly shorter than the cover member 9e, and even with this configuration, the cover material 9e slides on the surface of the cover member 9d or the structure 20 when the structure changes in the direction in which the structure is narrowed, and the cover member 9d Since it is accommodated in the corner of 20 and can be changed until the skeleton body 20 and the skeleton body 21 come into contact with each other, the skeleton gap can be used as a space in which skeleton movement can be performed about the entire width.

(Effects of the Invention) As described above, according to the present invention, it is possible to absorb the variation in the gap direction of the body with a simple structure, as a matter of course.
Approximately the entire width of the body gap can be utilized as the width that can be varied by the body. In other words, the assumed maximum variation width of the body and the body gap can be set to be substantially the same, and the space occupied The space can be used effectively. At the same time, the material used for the expansion joint that closes the gap can be saved, and the construction cost can be reduced.

Further, according to the present invention, it is possible to reduce the appearance of bent portions or uneven portions, so that the body connecting portion can be made to look neat, the appearance can be improved, and the number of construction steps can be reduced. it can.

[Brief description of drawings]

FIG. 1 is a sectional view of the expansion joint of the present invention in a mounted state showing an embodiment, and FIGS. 2 and 3 are sectional views of a mounted state showing another embodiment respectively. 1 ... Expansion joint, 7a, 7b, 7c,
7d, 7e ... Base material, 9a, 9b, 9c, 9d, 9e ...
Cover material, 20, 21 ... Skeleton.

Claims (2)

[Scope of utility model registration request] 1. A base material fixed to one of the body portions along the body gap is fixed to a base material fixed to the other body portion by overhanging a cover material having a width substantially equal to or more than the body gap width in the body gap direction. A cover material having an overhanging width in the body gap direction of approximately half or less of the body gap width is fastened to the formed base material, and both cover materials are arranged in parallel so that the cover surfaces can slide relative to each other. An expansion joint having a structure that is installed. 2. A base material fixed to one skeleton portion along the skeleton gap is fixed to a base material fixed to one skeleton portion with a width approximately twice as much as the skeleton gap width in the skeleton gap direction, and the other skeleton portion is fixed. A cover material with a width that fits roughly on the surface of the body is fixed to the base material fixed to the both cover materials so that the cover surface of the former cover material can slide on the cover surface of the latter cover material. , An expansion joint having a configuration of being arranged in parallel.