JPS6328250Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The invention is an expansion joint device,
Specifically, expansion joints cover gaps between building frame structures that are flush with each other or form a certain angle, such as adjacent walls, floors, floors, ceilings, etc. in buildings that are closely spaced. Regarding equipment.

(Prior art) Generally, expansion devices are installed between the structures of a building frame separated by a small gap.
In the joint device, it is not preferable to simply fix the cover material covering the gap to both building frames with screws or the like. This is because these buildings vibrate separately and independently during earthquakes, uneven subsidence, etc., and the building frames approach or move away from each other, so if the above-mentioned cover is fixed to both frames, the vibrations will be reduced. This is because the cover is not able to cope with the displacement caused by such factors, and the cover may be deformed or damaged, thereby impairing the effect of covering the gap between the frames, resulting in the infiltration of rainwater, etc.

On the other hand, conventional expansion joint devices that respond to the displacement of the building frame have drawbacks such as being complex, requiring time and effort to construct, and being expensive.

(Purpose of the invention) The present invention solves the above-mentioned drawbacks, has a simple structure and is easy to construct, and also securely locks the joint holder with the cover material that covers the gap between closely spaced building frames. The purpose of this invention is to propose an expansion joint device that can perform the expansion joint well.

(Means for Achieving the Object) In order to achieve the above object, the expansion joint device according to the present invention has a plate-shaped fixing piece and a locking piece bent into a substantially L-shape, and the above-mentioned locking A plurality of joints forming overhanging pieces extending from the tips of the pieces to opposite sides, and forming at least one overhanging piece as a locking overhang piece so as to make an acute angle with respect to the locking piece. The holder is disposed on the surface of one of the building frame structures facing each other at an interval along the gap between the building frame structures, and the fixing piece is attached to the surface of the building frame structure. The locking piece is fixed to the surface and the locking piece projects in a direction away from the surface, and a locking groove that is inserted into the locking piece of the joint holder is provided on the back side of the cover material that covers the gap between the building frame structures. It is characterized in that an opening is integrally formed therein, and a locking groove is formed on at least one inner wall of the locking groove to lock the locking projection piece at the tip of the locking piece.

(Example) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the figure, symbols A and A' are walls of adjacent building frame structures, the surfaces of these walls A and A' are substantially flush, and a gap α is formed between both walls A and A'. On the other hand, an expansion joint device B is provided on the walls A, A' and covers the gap α.

The expansion joint device B is composed of a joint holder 1 and a cover material 2, and the cover 2 is held in place by the holder 1.

The joint holder 1 is formed by bending a plate-shaped fixing piece 1a and a locking piece 1b into a substantially L-shape, and has an overhanging piece 3 that extends from the tip of the locking piece 1b to opposite sides.
a, 3b, and at least one of the overhanging pieces 3a serves as a locking overhang piece that overhangs at an acute angle with respect to the locking piece 1b.
The joint holder 1 is preferably made of a metal material with high elasticity, such as a spring material. And the gap α between walls A and A′
A plurality of joint holders 1 are arranged at intervals along the wall A, and the fixing piece 1a of each joint holder 1 is fixed to the surface of the wall A by screws.
At this time, the locking piece 1b projects in a direction away from the surface.

Next, the cover material 2 is integrally formed from aluminum or its alloy, and the gap α between the walls A and A' is
A locking groove 2b is integrally formed on the back side of one side of the cover main body 2a, which has a width sufficient to cover the cover body 2a, and a fitting groove 2c for the seal/displacement absorber 4 is formed at the bottom of both ends.
2c, and a locking groove 5 is formed on one inner wall of the locking groove 2b.

The locking piece 1b of the joint holder 1 is inserted into the locking groove 2b of the cover material 2, and the locking piece 1b
The cover 2 is fixed on the holder 1 by the protruding piece 3a on one side being engaged with the engagement groove 5 of the engagement groove 2b. The cover 2 covers the gap α between the walls A and A′, and the seal/displacement absorber 4 fitted to the lower part of both ends of the cover 2 covers the gap α between the walls A and A′.
It is in contact with the surface of A′.

When locking and fixing the cover material 2 to the joint holder 1 as described above, place the opening of the locking groove 2b of the cover material 2 above the locking piece 1b of the joint holder 1, and simply insert it from above. All you have to do is press it down.
Since the locking piece 1b is supported on the surface of the wall A,
When the cover material 2 is rolled down from above the locking piece 1b, the locking piece 1b does not escape downward. Therefore, the locking piece 1b is reliably inserted deep into the locking groove 2b. Moreover, since the locking groove 2b is molded integrally with the cover material and does not undergo elastic deformation, the one acute-angled projecting piece 3a of the locking piece 1b is formed in the locking groove 2b.
It is securely locked to the locking unevenness strip 5. Therefore,
Construction is easy.

Moreover, if the protruding width of the locking piece 1b is made slightly larger than the groove width of the locking groove 2b, the end of the protruding piece 3b of the locking piece 1b will be bent greatly when it is fitted, so there will be a reaction against this bending. By force, the overhang piece 3a
is securely engaged with the engagement groove 5 of the engagement groove 2b, and no wobbling occurs. Therefore, when the joint holder 1 is made of an elastic metal material, the above-mentioned repulsive force acts effectively, and the above-mentioned effects are further improved. Furthermore, the other overhanging piece 3b of the locking piece 1b
is approximately horizontal, but its upper surface abuts the back surface of the locking groove 2b of the cover material 2, so the locking piece 1b and the locking groove 2b fit well, and the cover material 2 is placed in the joint holder 1. Maintained stably.

Next, according to the expansion joint device B, as mentioned above, the cover material 2 is fixed only to the wall A of one building, and is free to the other wall A', so that the vibration Even if adjacent building frame structures approach or separate from each other due to reasons such as this, and a displacement occurs between walls A and A', the covering material 2
can respond sufficiently to this displacement. For example, when wall A' rises higher than wall A as shown in Figure 2, the wall A' side part of the cover material 2 also moves upwards than the wall A side part, and the movement occurs accordingly. The locking portion between the tip holder 1 and the cover 2 also moves upward. However, since the joint holder 1 is elastically deformed at this time, it can respond sufficiently. At this time, since the seal/displacement absorbers 4 at both ends of the cover 2 are also elastic, they are compressed and can absorb a portion of the displacement. For this reason, the locking piece 1b of the joint holder 1 does not disengage from the locking groove 2b of the cover material 2, and the cover 2 is always stably held on the joint holder 1.
Note that in order to effectively respond to the above displacement, the joint holder 1 is preferably made of an elastic material.

Next, FIG. 3 shows another example of the locking mode between the cover material and the joint holder. In this example, the joint holder 20 is provided with projecting pieces 21 on both sides of the locking piece 20b, and the cover Locking grooves 23 are formed on both opposing inner walls of the locking groove 22b of the material 22. Even with such a configuration, the cover material 22 can be sufficiently stably held on the joint holder 20 and can respond to displacements such as those caused by vibrations.

Further, FIGS. 4a, b, c, d and e each show embodiments of the joint holder,
First, the joint holder 10 shown in a and b of the same figure
and 11 are formed by bending a metal plate, and extend in opposite directions from the upper ends of locking pieces 10b and 11b formed upward from fixed pieces 10a and 11a, respectively, through cuts p. Piece 15
a, 15b, 16a, and 16b are formed in an overhanging manner.

The cut p is not necessarily limited to the one provided at the upper end, but can be cut from the base of the locking piece 12b formed upward from the fixed piece 12a, as in the joint holder 12 shown in FIG. The piece 12b may be bent into a V-shape, or a cut p may be made from the fixed piece 13a, as in the joint holder 13 shown in FIG. Furthermore, the joint holder can be constructed from an extruded shape, as shown in the joint holder 14 shown in FIG.

The locking projecting pieces of each of the above-mentioned joint holders may be appropriately selected depending on the manner in which the locking grooves are arranged in the locking groove of the expansion joint holder.

Next, Fig. 5 shows an expansion joint device installed at the inner corner of two separated walls when they face each other at a certain angle.
B', the walls a and a' are at right angles to each other at the entrance corner, and a gap α' is formed between the walls a and a'.

A joint holder 1' having a locking piece 1'b having the same structure as that shown in FIG. 1 is fixed to one wall a by screws.

The cover material 2' is bent at a substantially right angle at the middle part, and a seal/displacement absorber 4' is fitted to the other ends thereof, and is shifted to one side to form a locking groove 2'b. The configuration is the same as that shown in FIG.

The cover material 2' is held by locking the locking piece 1'b of the joint holder 1' in its locking groove 2'b, covering the gap between both walls a and a', and sealing. The displacement absorber 4' is in contact with both walls a and a'.

In this way, the expansion shown above
The joint devices B, B' can cover not only the gap between opposing walls spaced apart on the same plane, but also the gap between opposing walls facing each other at a certain angle. Of course, the latter device B' has a simple structure and is easy to construct, and can also sufficiently respond to the displacement of both walls a and a' during vibrations and the like.

In addition, although the above-mentioned embodiment is a case in which the structures of the building frame in which the expansion joint device is adjacent are walls, the present invention is not limited to the above-illustrated example; is the floor and the floor,
Of course, it may be a ceiling to a ceiling, a floor to a wall, a wall to a ceiling, etc.

(Effect of the invention) As described above, according to the invention, the fixing piece of the joint holder is fixed to the surface of the building frame structure, and the locking piece protrudes in a direction away from the surface, so that the cover material cannot be removed. When locking to the joint holder, the opening of the locking groove of the cover material may be placed on the locking piece of the joint holder and pressed toward the locking piece. Since the locking piece is supported on the surface of the building frame structure, when the cover material is pressed, the locking piece will not escape in the pressing direction.
The locking piece is surely inserted deep into the locking groove. Moreover, since the locking groove is molded integrally with the cover material and does not undergo elastic deformation, one acute-angled projecting piece of the locking piece reliably locks into the locking groove of the locking groove. Therefore, the construction is easy, and the locking piece and the locking groove are securely and well locked.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an expansion joint device according to the present invention, Fig. 2 is a sectional view of an example in which the device responds to the displacement of a building frame, and Fig. 3 is another example of the expansion joint device described above. 4a, b, c, d and e are respectively perspective views of an embodiment of the joint holder, and FIG. 5 is a longitudinal sectional view of another embodiment of the expansion joint device. It is a front view. Code A...wall, B...expansion joint device, 1...joint holder, 2...
Cover material, 4... Seal/displacement absorber, 5... Locking uneven strip.

Claims (1)

[Scope of utility model registration request] A plate-shaped fixing piece and a locking piece are bent into a substantially L-shape, and projecting pieces projecting from the tips of the locking pieces to opposite sides of each other are formed, and at least one of the projecting pieces is connected to the locking piece. A plurality of joint holders, which serve as locking overhang pieces that extend out at an acute angle with respect to the building framework, are mounted on the surface of one of the building framework structures facing each other at intervals. The fixing piece is disposed along the gap between the structures, the fixing piece is fixed to the surface of the building frame structure, and the locking piece is protruded in a direction away from the surface, so as to close the gap between the building frames. A locking groove to be inserted into the locking piece of the joint holder is integrally formed on the back side of the covering material, and a locking tension for the tip of the locking piece is formed on at least one inner wall of the locking groove. An expansion joint device characterized in that a locking uneven strip is formed to lock onto a projecting piece.