JP3701176B2 - Expansion joint - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an expansion joint that is installed across both housings in order to close a housing space of a building.
[0002]
[Prior art]
An example of a conventional expansion joint is shown in FIG. 11, and the expansion joint has a headboard structure and a waist drainage structure, and both of them have a holder 103 attached to a fixing bracket 101 fixed to the housing side 100 via a spring 102. The cover material 104 is attached to this. The spring is attached to the bottom surface of the holder and is fixed in the depth direction (Z direction) of the housing gap, so it can absorb slight fluctuations in the Z direction, but for fluctuations in the longitudinal direction of the housing gap (Y direction) I can not cope. Further, it cannot cope with fluctuations in the frame gap width direction (X direction).
For this purpose, a hole through which the housing fixing bolt 105 is inserted into the holder is a long hole 106 so that the holder can slide by the length of the long hole.
[0003]
[Problems to be solved by the invention]
However, the length of the long hole 106 greatly exceeds the width (thickness) of the gasket 107 attached to the fixing bracket 101 by making the length capable of absorbing a certain variation, and a gap penetrating the inside and outside of this hole is formed. It has occurred.
As shown by the arrow, the blown rain made the long hole into a vent hole along with the blown wind, and it was easy to enter the inside (from the side of the housing gap).
In addition, since recent buildings have a seismic isolation structure, there is almost no deviation in the vertical direction (Z direction) between adjacent enclosures, and a configuration that absorbs the deviation in the horizontal direction (XY direction). It is requested.
The present invention pays attention to the above-mentioned problems, and an expansion joint capable of sliding sufficiently so as to prevent the intrusion of rainwater and at the same time absorb the deviation in the XY direction without opening a long hole. It is to be provided.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a sliding groove in the longitudinal direction of the casing gap, which fixes a base material having a protruding portion or a groove portion in the longitudinal direction of the casing gap to the end portion of the casing and engages with the protruding section or the groove portion. Or a frame portion having a bottom surface straddling the gap between the housings, which is slidably locked on the base material and a bracket having a support portion in the frame gap width direction is connected and fixed to a required position of the threading material. The support part and the rail part can be slid to each other with a holder that is formed with a rail part in the frame gap width direction and a bent piece is formed at the end of the frame. And a gasket having an elastic part that can be joined to the back surface of the cover material and an elastic part that can be joined to the housing side, and seals the gap between the holders. I was locking on to a through material so as to close Characterized by being configured the expansion joints provided with the configuration.
[0005]
According to the present invention, in addition to the above configuration, one end side of the attached cover material is locked to the locking piece at one end of the holder connected to the bracket, and the other end side is fixed to the housing, particularly the wall portion. At the intermediate part or joint part between the holders, the end part of the spring body with the base part supported by the fixing member is joined to the back surface of the cover material, and the other end side of the cover body is engaged. It is also an expansion joint having a configuration in which it is brought into contact with the joint.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an exemplary embodiment of the present invention will be described with reference to the drawings.
1 to 7 are partial perspective views showing the structure of the expansion joint according to the present invention in the order of construction, FIG. 8 is a sectional view showing the installation state, and FIGS. 9 and 10 are drawings showing the structure of another example expansion joint.
[0007]
A plate-shaped base material 3 of an appropriate size that is bolted to the top end face of the housing 2 along the housing gap 1 is provided with a bulged ridge 3a for fitting in parallel with the longitudinal direction of the housing gap (Y direction). It is. A plurality of base materials 3 are installed at appropriate intervals on the top end surface (FIG. 1), and a long threading material 4 is appropriately transferred to this so as to be slidable in the longitudinal direction of the housing gap (FIG. 2).
The threading member 4 has a middle bulging slide groove 4a that is slidably fitted to the protrusion 3a, and a locking portion 4b that locks the gasket is provided above the protruding groove 4a. The flange 4c is bent.
[0008]
The connecting member 5 is fixed with a screw or the like at a predetermined interval of the flange 4c (FIG. 3), and the bracket 6 is fixed to the connecting member 5 (FIG. 4).
The connecting member 5 has a configuration in which a connecting plate portion 5b having a wavy uneven portion extends from the fixing portion 5a that can be fixed to the flange 4c with screws or the like toward the housing gap. The connecting plate portion 5b may be a press material, but is preferably a plate spring so that the connecting plate portion including the concavo-convex portion has a slight elasticity, whereby the connecting plate portion, the bracket, and the supporting holder in the vertical direction. Allows variation in (Z direction).
The bracket 6 is an upward U-shaped member formed with support portions 6a having inwardly hooked portions on both sides of the plate gap in the longitudinal direction of the frame gap, and the holders 7 extending in the width direction of the frame gap (X direction) are provided on both sides. And slidably supported in the same direction (FIG. 5).
[0009]
The holder 7 has a bottom surface and a side wall straddling the housing gap, and outside the both side walls of the frame 7a having a length sufficient to absorb the fluctuation of the housing gap due to the displacement of the housing in the width direction of the housing. An engaging rail portion 7b in the gap width direction is formed, and a locking piece 7c that can be locked inside the end portion of the cover material is bent at both ends or one end portion of the frame 7a. The bottom and side walls are configured not to form holes, particularly long holes.
In case of a capsaki type holder to be installed at the top of the parapet, a locking piece 7c, 7c is formed at both ends of the frame 7a to form a holder 7, and a water drainage device is installed across the wall and the top. In the case of a type holder, an engaging piece 7c is formed at one end of the frame 7a, an engaging 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 that it can be locked (FIG. 9).
The locking pieces 7c, 7d and the frame 7a may be integrally formed, but the locking pieces 7c, 7d are formed as separate pieces in which an insertion piece to the frame is extended at the base end, It is preferable to adopt a three-piece configuration that is detachable from the frame 7a and adjustable in insertion depth (length).
[0010]
The connecting member 5, the bracket 6, and the holder 7 can be appropriately connected. For example, the holder 7 and the bracket 6 are connected by sandwiching the support portion 6 a between the rail portion 7 b and the bottom surface of the holder 7. The connecting plate portion 5b can be press-fitted between the plate surfaces of the bracket using the elasticity of the waved uneven portions, and these can be connected and fixed. The bracket 6 is connected to the connecting member 5, and the holder 7 is pressed to this. It can also be fitted and fixed.
In addition, although the material of said each member is arbitrary, it is desirable to make it from aluminum, stainless steel, and other metals.
[0011]
A gasket 8 for water stop is attached to the threading member 4 (FIG. 6).
The gasket 8 is a long body, and has an engaging portion 8 a provided with a groove portion that engages with the engaging portion 4 b of the threading member 4, and a seal portion having a height that is joined to the back surface of the cover material 9 above the engaging portion 8 a. A hollow elastic portion 8b is protruded and a whisker-like elastic portion 8c is protruded as a seal portion to be joined to the casing surface downward from the outer side. The hollow elastic bracket 8b absorbs the crushing caused by the pressure bonding in the vertical direction, and the whisker-shaped elastic portion 8c absorbs unevenness of the housing surface.
The gasket 8 attached to the threading member 4 is formed by cutting away the elastic portion 8b where the holder 7 passes with the holder width, and this cut end face comes into contact with the outer side wall of the holder.
The cover material 9 is a metal plate having a configuration similar to that of the prior art in which locking pieces are formed at both ends of the long top surface, and is attached on the holder 7 provided (FIG. 7).
[0012]
If the expansion joint having the above configuration is a so-called headboard type, it is preferable that the expansion joint is formed as a symmetrical configuration with respect to both sides of the gap.
On the other hand, in the case of a so-called waist drainage type in which one of the housings is a wall portion, as shown in FIG. 9, a long metal shape having upper and lower C-shaped openings having a C-shaped cross section as engaging portions 10a and 10b. The fixing member 10 is fixed to the wall portion 2a (the step portion of the waist wall), and the holder 7 is formed with a lower folding engaging portion 7d that engages with the engaging portion 10b at an end of the wall side, It is preferable that the cover member 9 is formed with an upper folding engagement portion 9a that engages with the engagement portion 10a at an end portion on the wall side. The holder 7 is in contact with the back surface of the cover material 9 to support the cover surface.
[0013]
In the case of the waist draining type, the end of the cover material 9 is slightly bent or sag in the middle part of the adjacent holders 7 and 7 or the joint part of the cover material due to the weight of the cover material, product error, or external force such as snow. A phenomenon may occur, and there is a possibility that a slight gap may be generated between the fixing member 10 and the engaging portion 10a. The spring body 11 is attached to the engaging portion 10b of the fixing member in such a portion, and the end of the spring body 11 is pressed against the back surface near the end of the cover material 9 so that the end of the cover body does not bend downward. It is desirable to make it.
The spring body 11 is formed by pressing a metal plate and has a bifurcated sandwiching portion 11a sandwiched by the engaging portion 10b of the fixing member at one end portion (base portion) of the plate body, and the intermediate portion of the plate body is formed. It is configured such that it is bent in a letter shape, and the tip end portion is a joint 11b to the back surface of the cover material 9.
[0014]
It should be noted that in the above configuration, the configuration in which the concave and convex portions, the engagement, etc. can be formed in reverse may naturally be formed in reverse, and another configuration that exhibits the same function and action can be arbitrarily adopted.
[0015]
【The invention's effect】
As described above, according to the present invention, the holder is connected to the bracket so as to be slidable in the width direction of the housing gap without inserting a bolt into the holder holding the cover material, and the threading material to which the bracket is fixed is connected to the housing gap. Since it is locked to the base material so as to be slidable in the longitudinal direction, it is possible to provide an expansion joint that can prevent rainwater from entering from the holder and absorb the horizontal displacement of the housing.
If the bracket is connected to the threading member via the connecting member, the vertical displacement of the housing can be absorbed by the deformability of the connecting member.
If a gasket with elastic parts formed on the top and bottom is attached to the threading material and the holder is inserted through the notch, water permeability between the outside and inside of the gasket can be blocked, and sufficient water stopping can be achieved. The water stoppage is not impaired even by the variable absorption action of the housing.
[0016]
In addition, in the waist joint drain type expansion joint, in addition to the above effects, if the cover body is supported from the back side by a spring body disposed in the middle part between the holders or the cover body joint part, the phenomenon of sagging of the cover body part is caused. It can be prevented and does not cause the risk of water leakage.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing a base material attached state.
FIG. 2 is a partial perspective view showing a threading material attached state.
FIG. 3 is a partial perspective view showing a connecting member attached state.
FIG. 4 is a partial perspective view showing a bracket mounting state.
FIG. 5 is a partial perspective view showing a state where the holder is attached.
FIG. 6 is a partial perspective view showing a gasket attached state.
FIG. 7 is a partial perspective view showing a cover material attached state.
FIG. 8 is a partial cross-sectional view showing a main part of the expansion joint.
FIG. 9 is a partial cross-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, where FIG. 11A is a cross-sectional view and FIG. 11B is a plan view with a cover member removed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame gap 2 Frame 2a Wall part 3 Base material 3a Projection 4 Passing material 4a Slide groove 4b Locking part 4c Flange 5 Connection member 5a Fixing part 5b Connection plate part 6 Bracket 6a Support part 7 Holder 7a Frame 7b Rail part 7c Engagement 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 Joining part

Claims (1)

A base material having protrusions or grooves in the longitudinal direction of the casing gap is fixed to the end of the casing, and a threading material having slide grooves or protrusions in the longitudinal direction of the casing gap that engages with the protrusions or grooves is provided on the base material. The bracket having a support part in the frame gap width direction is slidably locked to the required position of the through material, and the rail part in the frame gap width direction is formed on the frame part having the bottom surface straddling the frame gap, A holder in which a locking piece for locking inside the end portion of the adherend cover material is bent at the frame end portion, and the support portion and the rail portion are slidably engaged with each other to be connected to the bracket. a gasket having a joinable elastic portion bondable elastic part and the skeleton side on the rear surface of the wearing cover material, formed by locking on to the threading member to close the gap between the skeleton side with closing between the respective holders Expansion job with configuration Cement.

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