JP2568473Y2 - Expansion joint structure - 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 structure used for connecting parts such as walls of a building.

[0002]

2. Description of the Related Art When a wall of a building is made of concrete or stone, a so-called expansion joint structure is employed at a connection portion thereof to absorb an impact such as an earthquake. For example, as shown in FIG. 5 (a), the expansion joint of the outer wall has a fireproof zone c inserted into a gap b having an appropriate width provided at a connection portion of the outer wall a, and a waterproof sheet d is attached to the front side thereof. The metal mold e is screwed to the outer wall a to close the gap b, and the metal mold e is further covered with a metal cover f. The one shown in FIG.
Is filled with rock wool h, metal angles i are fixed on both sides of the end of the widened gap, metal shapes j and k are attached to the metal angles i, and the gap between the metal shapes and the metal shape And the outer wall is closed with a sealing l.

On the other hand, an expansion joint on the inner wall is obtained by attaching a metal holder B to an interior material A such as a plaster board and attaching a metal cover D to the metal holder B via a gasket C as shown in FIG. The gap between the interior materials A and the gap between the wall bodies E are closed. 6 (b), the width of the gap between the wall bodies G is widened, and a metal crank-shaped angle H is fixed to both ends thereof.
It is a structure with J attached.

[0004]

According to the conventional expansion joint structure ## devised is to solve the above, many members using metal material, to be wins those really complicated shape in order to fit the displacement-following when the normal external force applied It is. In addition, it is said that the size becomes large and obstructive, and that it is necessary to devise a design. In addition, when a displacement greater than the expected external force is applied, the metal member often undergoes plastic deformation or breakage, and a fire-resistant member is also required, and its recovery requires a great deal of labor and cost. I have.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem. The structure is significantly simplified, the number of parts can be reduced, the size is small, and it is not obstructive, and it is possible to follow a displacement to an external force. An object of the present invention is to provide an expansion joint structure which is excellent and prevents plastic deformation and breakage due to unexpected external force.

[0006]

As a means for technically solving this problem, the present invention has a plate-like shock-absorbing convex or curved portion, and has one end or both ends. An expansion refractory gasket provided with a mounting portion is formed of silicone rubber, and the convex portion or the curved portion is located at a central portion of a gap between an outer wall or an inner wall, and the mounting portion is fixed to one or both walls. The gist is that the front side of the portion or the curved portion is exposed and protruded forward so that both sides of the convex portion or the curved portion are filled with the sealing material or the interior material is attached.

[0007]

[Operation] A structure having a convex portion or a curved portion for absorbing shock and a mounting portion formed at an end portion. The shape is very simple. The joint structure is significantly simplified, and the number of parts can be reduced. The size can be reduced so as not to be conspicuous, and since it is integrally molded with silicone rubber, it has excellent displacement followability to external force, it is hard to cause plastic deformation and breakage, and it has fire resistance, so that a fire-resistant member is unnecessary. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a refractory gasket for outer wall expansion, which is integrally formed of silicone rubber, has a convex portion 1a for absorbing shock at a central portion, and has mounting portions 1b at both ends.

The refractory gasket 1 is provided with a gap 2
The mounting portion 1b is fixed to an angle member 3 opposed to the inside by fixing screws 4 and the like, and a sealing material 4 is filled between the convex portion 1a and the outer walls 2 on both sides to form a gap 2a.
Close.

In this case, the conventional fireproof zone and the waterproof sheet are not required in the gap 2a of the outer wall 2, thereby simplifying the structure. When an impact is applied to the outer wall 2 at the time of an earthquake or the like, the impact is absorbed by the convex portion 1a of the refractory gasket 1, and the function as an expansion joint can be sufficiently exhibited. Furthermore, since it is integrally formed of silicone rubber, it has excellent displacement followability to external forces, hardly undergoes plastic deformation or breakage, and has fire resistance, so that a fire-resistant member is not required.

FIG. 2 shows another embodiment of a refractory gasket for outer wall expansion, which comprises a first refractory gasket 21 and a second refractory gasket 22, each of which is integrally formed of silicone rubber. The first refractory gasket 21 includes a bending portion 21a for absorbing shock and a mounting portion 21b, and the second refractory gasket 22 includes a bending portion 22a for absorbing shock and a mounting portion 22b fitted to the bending portion 21a. It has.

The first refractory gasket 21 is attached to a mounting portion 21a at a step 23a formed at an opening of one outer wall 23.
b is fixed with screws or the like, and the second refractory gasket 22
The mounting portion 22b is fixed to an angle member 24 fixed to the other outer wall 23 'with screws or the like, and the bending portion 22
a is fitted and closely attached to the curved portion 21a of the first refractory gasket 21. Further, a seal material 25 is filled between the curved portion 21a of the first refractory gasket 21 and the outer walls 23, 23 'on both sides to close the gap 23b.

Also in this case, the conventional fireproof zone and the waterproof sheet are not required, and the structure is simplified. Outer wall 23 in case of earthquake
When an impact is applied to the first refractory gasket 2
It is absorbed by the curved portion 21a of the first or the curved portion 22a of the second refractory gasket 22, and can sufficiently exhibit the function as an expansion joint. Furthermore, since it is integrally formed of silicone rubber, it has excellent displacement followability to external forces, hardly undergoes plastic deformation or breakage, and has fire resistance, so that a fire-resistant member is not required.

FIG. 3 shows an embodiment of the refractory gasket 31 for expansion of the inner wall. The basic structure is the same as that of the refractory gasket 1 for expansion of the outer wall, which is made of silicone rubber. Part 31
a, and has attachment portions 31b on both sides thereof.

In the refractory gasket 31 for expansion of the inner wall constructed as described above, the mounting portions 31b on both sides are fixed to the inner wall 32 with the projections 31a corresponding to the gap positions of the inner wall 32, and the projections 31a are sandwiched from both sides. Thus, the interior material 33 such as a plaster board is attached. That is, from inside the room, the surface of the projection 31 a of the refractory gasket 31 looks like a thin joint at the connection portion of the interior material 33.

In this case, a conventional holder, cover and the like are not required, and the structure is simplified. When an impact is applied to the inner wall 32 at the time of an earthquake or the like, the impact is applied to the projection 3 of the refractory gasket 31.
It is absorbed by 1a and can sufficiently exhibit the function as an expansion joint. Furthermore, since it is integrally formed of silicone rubber, it has excellent displacement followability to external forces, hardly undergoes plastic deformation or breakage, and has fire resistance, so that a fire-resistant member is not required.

FIG. 4 shows another embodiment of the refractory gasket for expansion of the inner wall, in which a shock absorbing projection 41a of a refractory gasket 41 is formed in a slightly thick plate shape, and a mounting portion 41b is formed at one end thereof. And is integrally formed of silicone rubber.

The refractory gasket 41 is mounted on the inner wall 42 by fixing the mounting portion 41b to one of the inner walls 42 with screws or the like so that the shock absorbing convex portion 41a corresponds to the gap between the two inner walls 42. An interior material 43 such as a plaster board is attached so as to sandwich 41a from both sides. Therefore, from inside the room, the surface of the convex portion 41a of the refractory gasket 41 looks like a thin joint at the connecting portion of the interior material 43.

Also in this case, the conventional holder and cover are not required and the structure is simplified. When an impact is applied to the inner wall 42 at the time of an earthquake or the like, the impact is absorbed by the convex portion 41a of the refractory gasket 41, and the function as an expansion joint can be sufficiently exhibited. Furthermore, since it is integrally formed of silicone rubber, it has excellent displacement followability to external forces, hardly undergoes plastic deformation or breakage, and has fire resistance, so that a fire-resistant member is not required.

[0020]

As described above, according to the present invention,
A plate-like shock-absorbing convex or curved portion and an expansion refractory gasket provided with a mounting portion at one end or both ends are formed of silicone rubber. Since it was installed so as to be located at the center of the gap of the wall of the wall, the front side of the convex portion or the curved portion was exposed and protruded forward, and both sides were filled with a sealing material or an interior material was attached. In addition, the expansion joint structure is significantly simplified, the number of parts can be reduced, the size is small and it does not become annoying, it is excellent in following displacement to external force, it does not cause plastic deformation or breakage, and the need for fire-resistant members is eliminated. It has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing an embodiment of a refractory gasket for outer wall expansion of the present invention.

FIG. 2 is a sectional view of a main part showing another embodiment of a refractory gasket for outer wall expansion.

FIG. 3 is a sectional view of a main part showing an embodiment of a fire-resistant gasket for inner wall expansion of the present invention.

FIG. 4 is a sectional view of a main part showing another embodiment of a refractory gasket for inner wall expansion.

FIGS. 5A and 5B are explanatory views showing a cross section of a structure of a conventional outer wall expansion.

6 (a) and 6 (b) are explanatory views each showing a cross section of a structure of a conventional inner wall expansion.

[Explanation of symbols]

1 ... Fireproof gasket for outer wall expansion 1a ...
Projecting portion 1b Mounting portion 2 Outer wall 2a Clearance 3 Angle member 4 Sealing material 21 First refractory gasket 21a Bending portion 21b Mounting portion 22 Second refractory gasket 22a Bending portion 22b Mounting portion 23 ... Outer wall 23a ... Step 23b ... Gap 24 ... Angle member 25 ... Seal material 31 ... Fireproof gasket for inner wall expansion 31a ... Protrusion 31b ... Mounting part 32 ... Inner wall 33 ... Interior material 41 ... Fireproof gasket 41a ... Protrusion 41b ... Mounting part 42 ... inner wall 43 ... interior material

Claims (1)

(57) [Scope of request for utility model registration] 1. A refractory gasket for expansion having a plate-like impact-absorbing convex or curved portion and having a mounting portion at one end or both ends is formed of silicone rubber, and said convex or curved portion is formed of silicone rubber. Part is located at the center of the gap between the outer wall and the inner wall, and the mounting part is fixed to one or both walls, exposing the front side of this convex part or curved part, and
An expansion joint structure characterized by filling a sealing material on both sides of a convex portion or a curved portion and attaching an interior material to the convex portion or the curved portion.