JP2002021202A - Expansion joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expansion joint, in which the infiltration of rainwater is prevented by a holder, in which a slot is not bored, while fluctuation in the XY directions of a skeleton can be absorbed. SOLUTION: A substrate material 3 with a projecting strip 3a in the Y direction is fixed onto a skeleton, a through-material 4 with a sliding groove 4a engaged with the projecting strip, an engaging section 4b and a flange 4c is engaged on the substrate material, a connecting member 5 with a connecting plate section 5b is fixed onto the flange, a bracket 6 with a supporting section 6a in the X direction is connected to the connecting plate section, the holder 7, in which a rail section 7b in the X direction is formed to a frame 7a with a base crossed over an opening between the skeletons and an engaging piece 7c is formed at an end section, is connected to the supporting section 6a, a long-sized gasket 8, in which elastic sections 8b, 8c as sealing sections are formed to upper and lower sections, is engaged with the engaging section 4b, and the whole is covered with a covering material 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint installed between two frames to close a gap between the frames of a building.

[0002]

2. Description of the Related Art FIG. 11 shows an example of a conventional expansion joint. There are two types of expansion joints, a kasagi configuration and a waist drain configuration.
A holder 103 is attached via a spring 102 to a fixture 101 fixed to 00, and a cover member 104 is attached to the holder 103. Since the spring is attached to the bottom of the holder and fixed in the depth direction (Z direction) of the skeleton gap, it can absorb slight fluctuations in the Z direction. I can not cope. Further, it is not possible to cope with a variation in the frame gap width direction (X direction). For this purpose, the hole through which the body fixing bolt 105 is inserted into the holder is defined as an elongated hole 106 so that the holder can slide by the length of the elongated hole.

[0003]

However, by setting the length to be able to absorb a certain fluctuation, the length of the elongated hole 106 becomes much larger than the width (thickness) of the gasket 107 attached to the fixing bracket 101. A gap penetrating inside and outside of this hole has been generated. The sprayed rain
As indicated by the arrow, the long holes became air holes together with the blowing wind, and it was easy to enter inward (toward the skeleton gap side) therefrom.
In addition, since recent buildings have a seismic isolation structure, there is almost no vertical displacement (Z direction) between adjacent frames, and a structure that absorbs horizontal displacement (XY directions) is adopted. Has been requested. The present invention has been made in view of the above-mentioned problems, and an expansion joint that can slide sufficiently so as to prevent intrusion of rainwater and at the same time absorb a deviation in the XY directions without opening a long hole. It will not be provided.

[0004]

In order to solve the above problems, the present invention is to fix a base material having ridges or grooves in the longitudinal direction of the skeleton gap to an end of the skeleton, and to fix the base material to the ridges or grooves. A threading member having a sliding groove or a ridge in the longitudinal direction of the skeleton gap to be joined is slidably locked on the base material, and a bracket having a support part in the width direction of the skeleton gap is connected and fixed to a required position of the threading material, The above-mentioned support is provided for a holder in which a rail portion in the frame gap width direction is formed on a frame portion having a bottom surface straddling the frame gap, and a locking piece for locking the inside of the end portion of the attached cover material is bent at the frame end. The part and the rail part are slidably engaged with each other so as to be connected to the bracket to form an expansion joint. In the above, it is possible to fix a connecting member having a connecting plate portion extending from the fixing portion to the pass-through member at a required position of the pass-through member, and connect the bracket to the connecting plate portion.
Further, in the above configuration, a gasket having an elastic portion that can be joined to the back surface of the adhered cover material and an elastic portion that can be joined to the skeleton side is passed through the material so as to close the gap between the holders and to close the gap on the skeleton side. Preferably, it is configured to lock.

According to the present invention, in addition to the above structure, one end of the attached cover material is locked by a locking piece at one end of a holder connected to the bracket, and the other end is fixed to a frame, particularly a wall. The end of the spring body whose base is supported by the fixing member is joined to the back surface of the cover material at the intermediate portion or the joint portion between the holders, and the other end of the cover body An expansion joint having a configuration in which the side is brought into contact with the engaging portion is also provided.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 are partial perspective views showing the structure of an expansion joint according to the present invention in the order of construction, FIG. 8 is a sectional view showing an installation state, and FIGS. 9 and 10 are drawings showing the structure of another example expansion joint.

An appropriately sized plate-like base material 3 to be bolted to the top end surface of the skeleton 2 along the skeleton gap 1 is provided with a bulging ridge 3a for fitting in parallel with the longitudinal direction of the skeleton gap (Y direction). It is protruding. The plurality of base materials 3 are installed at appropriate intervals on the top end surface (FIG. 1), and a long elongate material 4 is appropriately passed therethrough and slidably locked in the longitudinal direction of the frame gap (FIG. 2). The pass-through member 4 has a middle bulging slide groove 4a which is slidably fitted to the ridge 3a, and a locking portion 4b for locking the gasket is protrudingly provided above the slide groove 4a. The flange 4c is bent.

The connecting member 5 is fixed to a portion of the flange 4c at a predetermined interval with a screw or the like (FIG. 3), and a bracket 6 is fixed thereto (FIG. 4). The connecting member 5 has a configuration in which a connecting plate portion 5b having a corrugated uneven portion extends from a fixing portion 5a that can be fixed to the flange 4c with a screw or the like toward the skeleton gap. This connecting plate portion 5b
May be a press material, but is preferably a leaf spring so that the connecting plate portion including the concave and convex portions has a slight elasticity, so that the connecting plate portion, the bracket, and the supporting holder can be vertically moved (Z direction). Allows for fluctuations. Bracket 6
Is an upward U-shaped member formed with support portions 6a having inwardly hooked portions on both sides in the longitudinal direction of the skeleton gap on the plate surface, and holds the holder 7 extending in the width direction of the skeleton gap (X direction) from both sides. And is slidably supported in the same direction (FIG. 5).

[0009] The holder 7 has a bottom surface and side walls straddling the skeleton gap, and has a sufficient length to absorb fluctuations in the skeleton gap due to displacement of the skeleton in the width direction of the skeleton gap. An engaging rail 7b is formed in the frame gap width direction, and locking pieces 7c that can be locked inside the ends of the cover material are formed at both ends or one end of the frame 7a. The bottom and side walls have no holes, especially no long holes. In the case of a cap-type holder to be installed at the top of the parapet, a holding piece 7c, 7c is formed at both ends of the frame 7a to form the holder 7, and the waist drainer is installed across the wall and the top end. When a holder of the type is used, a locking piece 7c is formed at one end of the frame 7a, and a locking portion 7d is formed at the other end, and the engaging portion 10b of the fixing member 10 fixed to the wall 2a is formed. The holder 7 is formed so as to be locked (FIG. 9). Locking pieces 7c, 7d and frame 7a
May be integrally molded, but the locking pieces 7c,
7d is preferably formed as a separate piece with an insertion piece extending into the frame at the base end thereof, and has a three-piece configuration that can be freely attached to and detached from the frame 7a and the insertion depth (length) can be freely adjusted.

The connection between the connecting member 5, the bracket 6, and the holder 7 can be performed as appropriate. For example, the holder 7 and the bracket 6 are connected by holding the support portion 6a between the rail portions 7b. The connecting plate portion 5b is press-fitted between the bottom surface of the bracket and the plate surface of the bracket by utilizing the elasticity of the wavy uneven portion, and these can be connected and fixed.
It is also possible to connect the bracket 6 to this and press-fit the holder 7 to this to fix and connect it. The material of each of the above members is arbitrary, but is preferably made of aluminum, stainless steel or other metal.

A gasket 8 for stopping water is attached to the through member 4 (FIG. 6). The gasket 8 is a long body and has an engaging portion 8a provided with a groove for engaging with the locking portion 4b of the threading member 4, and a sealing portion having a height above the sealing portion 8a to be joined to the back surface of the cover member 9. A hollow elastic portion 8b as a projection is provided, and a whisker-like elastic portion 8 as a seal portion joined to the body surface downward from the outer portion.
c is protruding. The hollow elastic bracket 8b absorbs crushing caused by vertical compression, and the beard-like elastic portion 8c absorbs unevenness on the skeleton surface. The gasket 8 attached to the threading member 4 cuts off the elastic portion 8b at the portion where the holder 7 passes through the width of the holder, and the cut end surface comes into contact with the outer surface of the side wall of the holder. The cover member 9 is a metal plate having the same configuration as that of the related art in which locking pieces are formed at both ends of a long top surface.
It is attached on the holder 7 provided (FIG. 7).

If the expansion joint having the above structure is a so-called kasagi type, it is preferable to form the expansion joint as a symmetrical structure with respect to both body members on both sides of the gap. On the other hand, in the case of a so-called waist draining type in which one of the skeletons is a wall, as shown in FIG. 9, a long metal plate having a C-shaped cross section having upper and lower portions as engagement portions 10a and 10b as shown in FIG. The fixing member 10 is fixed to the wall portion 2a (step portion of the waist wall), and the holder 7 is formed at the end on the wall side thereof with a lower folding locking portion 7d for locking to the engaging portion 10b. The cover member 9 is provided at its end on the wall side with an upwardly bent engagement portion 9 which is engaged with the engagement portion 10a.
It is preferable that a is formed. The holder 7 is in contact with the back surface of the cover member 9 to support the cover surface.

In the case of the waist drainer type, the adjacent holders 7, 7
In the middle part or the joint part of the cover material, the end of the cover material 9 slightly bends or sags due to the own weight of the cover material, product error, or external force such as snow, and the fixing member 10 There is a possibility that a slight gap may occur between the engaging portion 10a and the engaging portion 10a. The spring body 11 is attached to the engaging portion 10b of the fixing member at such a portion, and the spring body 1
It is desirable that one end is pressed against the back surface near the end of the cover member 9 so that the end of the cover body does not bend downward.
The spring body 11 is formed by pressing a metal plate, has a bifurcated holding portion 11a for holding the engaging portion 10b of the fixing member at one end (base) of the plate body, and forms a middle portion of the plate body. It is bent in the shape of a letter, and has a configuration in which the front end portion is a joint portion 11b to the back surface of the cover material 9.

It should be noted that in the above configuration, the configuration in which the irregularities, engagement, and the like can be formed in the opposite manner may be formed in the opposite manner, and another configuration having the same function and function may be arbitrarily adopted. .

[0015]

As described above, according to the present invention, the holder is slidably connected to the bracket in the width direction of the frame without inserting a bolt into the holder for holding the cover member, and the bracket is fixed. Since the threading material is locked to the base material so as to be slidable in the longitudinal direction of the frame gap, it is possible to provide an expansion joint that can prevent rainwater from entering the holder and absorb a horizontal displacement of the frame. If the bracket is connected to the through member via the connecting member, the displacement of the skeleton in the vertical direction can be absorbed by the deformability of the connecting member. By attaching a gasket with elastic parts formed on the top and bottom to the through material and inserting the holder through the cutout, the water permeability between the outside and the inside of the gasket can be shut off and sufficient water stoppage can be provided However, the water stoppage is not impaired by the fluctuation absorbing action of the skeleton.

In addition, in the expansion joint of the drainage type, in addition to the above-mentioned effects, if the cover is supported from the back by a spring disposed in an intermediate portion between the holders or the joint of the cover, the dripping of the cover may be achieved. The occurrence phenomenon can be prevented, and the possibility of water leakage does not occur.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a state in which a base material is attached.

FIG. 2 is a partial perspective view showing a threaded member attached state.

FIG. 3 is a partial perspective view showing a connection member attached state.

FIG. 4 is a partial perspective view showing a state in which a bracket is attached.

FIG. 5 is a partial perspective view showing a holder mounted state.

FIG. 6 is a partial perspective view showing a gasket attached state.

FIG. 7 is a partial perspective view showing a state in which a cover member is attached.

FIG. 8 is a partial sectional view showing a main part of the expansion joint.

FIG. 9 is a partial sectional view showing another main part of the expansion joint.

FIG. 10 is a perspective view showing an example of a spring body.

11A and 11B show an example of a conventional expansion joint, in which FIG. 11A is a cross-sectional view, and FIG. 11B is a plan view with a cover material removed.

[Explanation of symbols]

 Reference Signs List 1 frame gap 2 frame 2a wall 3 base material 3a ridge 4 pass-through material 4a slide groove 4b locking portion 4c flange 5 connecting member 5a fixing portion 5b connecting plate portion 6 bracket 6a supporting portion 7 holder 7a frame 7b rail portion 7c Stop piece 7d Locking part 8 Gasket 8a Engaging part 8b, 8c Elastic part 9 Cover material 10 Fixing member 10a, 10b Engaging part 11 Spring body 11a Clamping part 11b Joint

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DA03 DH31 FA18 FA71 GA02 GA60 GA72 HB01 HB03 HB04 HF02 LA01 LA03 LA13 LA18 PA00 PA10

Claims (4)

[Claims] A base material having ridges or grooves in a longitudinal direction of a skeleton gap is fixed to an end of a skeleton, and a thread having a slide groove or ridge in a longitudinal direction of the skeleton gap to be engaged with the ridge or groove. The material is slidably locked onto the base material, a bracket having a support in the width direction of the skeleton gap is connected and fixed to a required position of the passing material, and a rail in the width direction of the skeleton gap is attached to a frame portion having a bottom surface straddling the skeleton gap. The holder is formed by bending a locking piece bent at the end of the frame to lock the inside of the end of the attached cover material, and the support portion and the rail portion are slidably engaged with each other to form the bracket. An expansion joint that has a configuration that is connected to. 2. The structure according to claim 1, wherein a connecting member having a connecting plate portion extending from a fixing portion to the passing material is fixed to a required position of the passing material, and a bracket is connected to the connecting plate portion. Expansion joint. 3. A gasket having an elastic portion that can be joined to the back surface of the attached cover material and an elastic portion that can be joined to the skeleton side is connected to the threading member so as to close between the holders and to close the gap on the skeleton side. The expansion joint according to claim 1 or 2, wherein the expansion joint has a stopped configuration. 4. One end of the attached cover material is locked by a locking piece at one end of the holder connected to the bracket, and the other end is locked by an engaging portion of a fixing member fixed to the frame. At an intermediate portion or a joint portion between the holders, the end of the spring body whose base is supported by the fixing member is joined to the back surface of the cover material, and the other end of the cover body is brought into contact with the engagement portion by the spring body. 2. The method according to claim 1, wherein the contacting means has a configuration in which the contacting parts are in contact with each other.
An expansion joint according to any one of claims 1 to 3.