JPH07102651A - Joint structure - Google Patents

Abstract

PURPOSE:To improve workability by eliminating the need of surface smoothing treatment or wall surface masking treatment and at the same time, enhance watertightness and airtightness by ensuring tight adhesion to the internal surface of a joint. CONSTITUTION:This structure is formed out of a preformed joint material 11 and a soft bond 20 filled into the material 11, and this material 11 has a surface fin piece 12, a leg fin piece 13, the first intermediate fin piece 14 and the first end fin piece 15 respectively formed on one side of the piece 13, and the second intermediate and end fin pieces 16 and 17 similarly formed on the other side of the piece 13. A gap between the first intermediate fin piece 14 and the first end fin piece 15 of the material 11 is filled with a soft bond 20, thereby forming the first seal section 21. Similarly, a gap between the second intermediate fin piece 16 and the second end fin piece 17 of the material 11 is filled with the soft bond 20, thereby forming the second seal section 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure provided at a wall plate joint portion of a building.

[0002]

2. Description of the Related Art Conventionally, joint structures are provided at joints of wall plate joints of buildings for the purpose of waterproofing and fire protection. As this joint structure, a fixed joint structure, an irregular joint structure, etc. are known. The former fixed joint structure is formed by extruding synthetic resin, rubber or the like into a predetermined shape, and is used by being fitted into the joint. The latter irregular joint structure is made of paste-like rubber or resin and is used by filling the joint.

However, since the former fixed joint structure is a molded product, it is difficult to completely cope with the uneven state of the inner wall surface of the joint, and a gap may be formed in the joint. On the other hand, since the latter irregular shaped joint structure has fluidity, it can be filled without gaps regardless of the irregular surface state of the joint inner wall, but it is necessary to provide a so-called backup material in order to regulate the joint depth. is there. Further, in order to prevent the irregular joint structure from adhering to and contaminating the surface portion of the wall plate, the wall surface must be masked beforehand. Furthermore, the joint surface provided with the irregular shaped joint structure needs to be leveled with a trowel or the like in order to improve the appearance, and not only there is a problem in workability, but also a problem that the finished state is difficult to be uniform. is there.

In order to solve such a problem, in Japanese Utility Model Publication No. 5-14962, a fixed joint material having a U-shaped cross section having a side surface having a sealing ridge and an opening on the back side is formed. A joint material is disclosed in which an irregular sealing material is filled in the opening on the back surface side and the back surface of the opening is covered with a film.

In this joint material, a flexible fixed joint material is pushed into the joint on the wall surface side of the building, and the film covering the opening is ruptured by the pressing deformation of the fixed joint material at that time. The irregular joint material is discharged to fill the joint. According to the joint material, the surface side of the joint is composed of the fixed joint material, and the irregular joint material is filled inside the joint.

However, in this structure, since the outflow direction of the irregular joint material is the depth direction of the joint, the irregular joint material may not spread sufficiently in the lateral direction. In this case, the irregular joint material may not surely contact the side wall of the joint and a gap may be generated.

[0007]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems, and it does not require surface smoothing treatment or wall surface masking treatment, resulting in excellent workability and joints. The present invention is intended to provide a joint structure having a high watertightness and airtightness by firmly adhering to the inner surface.

[0008]

That is, the present invention is
It is composed of a flexible joint material having flexibility in the cross-sectional direction and a soft joint material filled in the regular joint material, and the fixed joint material is a surface fin piece and a single piece hanging on the back side of the surface fin piece. A leg fin provided, a first intermediate fin and a first terminal fin integrally formed with the leg fin on one side surface of the leg fin, and the other side surface of the leg fin. A second intermediate fin piece and a second terminal fin piece integrally formed with the leg fin piece on the side, and the first intermediate fin piece and the first terminal fin piece of the standard joint material are provided with the second intermediate fin piece and the second terminal fin piece. A soft sealant is filled to form a first seal portion, and a soft sealant is also filled between the second intermediate fin piece and the second terminal fin piece of the regular joint material to form a second seal portion. The present invention relates to a joint structure characterized by being formed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. 1 is a perspective view showing an example of a joint structure of the present invention, FIG. 2 is a sectional view showing the joint structure attached to a wall on one side of the joint, and FIG. 3 is a sectional view showing an attachment state to the joint. FIG. 4 is a sectional view of the joint structure showing a joint having a wide width, and FIG. 5 is a sectional view of the joint structure showing a joint having a narrow width.

As shown in FIGS. 1 to 3, the joint structure 10 of the present invention has a fixed joint material 11 and a soft joint material 20.
And is attached to the joint portion 50 of the wall W1 and the wall W2. For the walls W1 and W2 on which the joint structure 10 of the present invention is provided, panel-shaped wall materials manufactured in advance in a factory and assembled in the field are used.

The fixed joint material 11 is made of a flexible synthetic resin or rubber and is continuous in the cross-sectional direction, and has a surface fin piece 12, a leg fin piece 13, a first intermediate fin piece 14, and a first end fin. It is composed of a piece 15, a second intermediate fin piece 16 and a second terminal fin piece 17.

The surface fin 12 appears on the surface side of the joint 50 to improve the appearance, and is formed in the longitudinal direction of the fixed joint material 11. The width of this surface fin piece 12 is
It is preferable to form the joint width slightly larger than the set standard dimension of the joint width.

The leg fin piece 13 is formed from the back surface side of the surface fin piece 12 in the same manner as the front fin piece 12 in the fixed joint material 11.
Are vertically provided integrally with each other. This flipper piece 13
A first intermediate fin piece 14 and a first terminal fin piece 15 are integrally provided on one side surface in the longitudinal direction, and a second intermediate fin piece 16 and a second terminal fin piece are also longitudinally provided on the other side surface. 17 is integrally provided.

The first intermediate fin piece 14 is the leg fin piece 13 described above.
It is projected integrally from approximately the middle. A first end fin piece 15 is formed from the rear end of the leg fin piece 13 in the protruding direction of the first intermediate fin piece 14. The first end fin piece 15 defines the rear end of the joint structure 10, holds the soft joint material 20 to be described later, controls the flow direction of the soft joint material 20, and efficiently extrudes it toward the inner wall surface of the joint.

Further, the second intermediate fin piece 16 is integrally provided so as to project from substantially the middle of the leg fin piece 13 in the direction opposite to the first intermediate fin piece 14. The second terminal fin piece 17 is provided so as to project from the rear end of the leg fin piece 13 like the first terminal fin piece 15. The second end fin piece 17 also defines the rear end of the joint structure 10 to provide a soft joint material 2 to be described later.
Hold 0 to control the flow so that it can be efficiently extruded toward the inner wall surface of the joint.

As can be seen from the figure, a space is formed between the first intermediate fin piece 14 and the first terminal fin piece 15. This space has an opening 23 on the inner wall surface side of the joint of the wall W1.
And having the soft joint material 20 filled therein to form the first seal portion 21. On the other hand, the space formed between the second intermediate fin piece 16 and the second terminal fin piece 17 is filled with the soft joint material 20 to form the second seal portion 22. Reference numeral 24 is an opening of the second seal portion 22 formed on the inner wall surface side of the joint of the wall W2.

Now, the soft joint material 20 will be described. The soft joint material 20 used in the present invention is also referred to as an amorphous joint material, and a known pasty sealing agent such as an acrylic type, a butyl type, or a silicon type is preferable,
It is appropriately selected and used according to the type and application of the building material used.

The joint structure 10 is jointed to the first seal portion 21 and the second seal portion 22 which are defined by the fin pieces 14, 15, 16, 17 and are filled with the soft joint material 20 inside. The soft joint material 20 is pushed out from the openings 23 and 24 by the pressing deformation when it is fitted in the inside 50. Then, the soft joint material 20 is brought into close contact with the inner wall surface of each joint without a gap.

The first joint portion 21 and the second seal portion 22 may be filled with the soft joint material 20 each time at the construction site. However, it is preliminarily performed when the fixed joint material 11 is manufactured. You can also keep it. At this time, in order to prevent the soft joint material 20 in the first seal portion 21 and the second seal portion 22 from drying and flowing out, it is preferable to cover the openings 23 and 24 with appropriate resin films or the like.

As will be understood from FIG. 2, the joint structure 10 has the surface fin piece 12 on the surface side of the joint, and the first intermediate fin piece 14 and the first fin piece 14 and the first fin piece are preliminarily attached by the double-sided tape 25 or the like. It is fixed by attaching the tip of the terminal fin piece 15 to the side wall surface of the joint 50 of the wall W1.

In this example, the first intermediate fin piece 14
At the tip of the first terminal fin piece 15, there are provided flat portions 18, 18 formed substantially parallel to the leg fin piece 13. The flat portion 18 is the joint 50 of the joint structure 10.
It secures the pressure contact with the inner wall surface and is attached in advance to the inner wall surface of the joint 50 of the one wall W1 through the above-mentioned double-sided tape 25 or the adhesive, and can be used as a temporary fixing for positioning or the like. , The efficiency of construction work on site becomes extremely good.

Further, the joint structure 10 is securely attached to the wall so that the joint structure 10 can be easily transported.
In order to prevent the flat portion 18 from falling off, the flat portion 18 may be fixed to the wall W1 with a presser nail 26 or the like. The flat portions 18 can also be provided at both ends of the surface fin piece 12. As a result, the surface fin piece 12 is surely pressed against the inner wall surface of the joint 50 between the walls W1 and W2 to close the gap.

Then, as shown in FIG. 3, at the construction site, first, the wall W1 to which the joint structure 10 is fixed is arranged, and then the wall W2 is connected to the tip of the second intermediate fin piece 16 and the second end. It is arranged so that the joint inner wall surface of the wall W2 is in pressure contact with the tip of the fin piece 17. Thereby, the joint structure 10 is mounted in the joint 50. The joint structure 10 thus attached to the joint has the surface fin piece 1
2, the tips of the first intermediate fin piece 14 and the first end fin piece 15 are in pressure contact with the joint inner wall surface of the wall W1, and the surface fin piece 12, the second intermediate fin piece 16 and the second end fin piece 17 are of the wall W2. It will be in pressure contact with the inner wall surface of the joint. Due to the compressive deformation of the joint structure 10 at the time of attachment, the soft joint material 20 inside is pushed out and filled into the joint 50 through the openings 23 and 24 of the first seal portion 21 and the second seal portion 22. Since the extruded soft joint material 20 flows toward the inner wall surface of the joint by the first end fin piece 15 and the second end fin piece 17, it surely adheres to the inner wall surface of the joint 50, and the leg fin piece 13 and the joint 50. It is filled between the inner wall surfaces.

In the leg fin piece 13, a thick portion 19 is provided near the base of the second intermediate fin piece 16. The thick portion 19 is provided in the first seal portion 2 when the joint structure 10 is compressed by the wall W1 and the wall W2.
The soft joint material 20 in the 1st and 2nd seal part 22 is pushed out to a joint wall surface side, and it makes it easy to adhere | attach on a joint inner wall surface. Furthermore, the presence of the thick portion 19 imparts shape-retaining property and rigidity to the leg fin piece 13, so that the fixed size joint material 11 can be reliably mounted in the joint regardless of the joint width. .

The joint structure 10 of the present invention is shown in FIG.
1 shows a state in which it is provided in a portion having a wide joint width between 1 and the wall W2. As shown in the figure, in the joint 51, each fin piece 12, 14, 15, 16, 17 of the joint structure 10 has a wall W.
1 and the wall W2, the dimensional change of the joint width is absorbed to surely press the inner wall surface of the joint, and the soft joint material 20 is effectively filled in the seal portion.

Further, FIG. 5 shows a joint structure 10 of the present invention.
An example in which the walls W1 and W2 are close to each other and is attached to a portion where the joint width is narrow is shown. As shown, this joint structure 10
Can be reliably attached to the size of the joint 52 width by the deformation of the fin pieces. At that time, since the soft joint material 20 in the first seal portion 21 and the second seal portion 22 is strongly pushed toward the inner wall surface side of the joint 52 by the thick portion 19, the joint 52 is filled without any gap. can do. The joint structure may be fixed to the wall panel on one side at a factory or the like in advance, but it may be attached to the wall at each site.

[0027]

As shown and described above, according to the present invention, since the soft joint material is effectively extruded toward the inner wall surface of the joint and firmly adheres to the inner wall surface of the joint, the joint width and the irregular surface condition in the joint may be changed. It is possible to perform a highly airtight seal without a gap or the like. In addition, since the surface side of the joint is made of the standard joint material, the surface smoothing process and the wall surface masking process are unnecessary, and the workability is extremely improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a joint structure of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the joint structure is attached to a wall on one side of the joint.

FIG. 3 is a cross-sectional view showing a state of attachment to a joint.

FIG. 4 is a cross-sectional view of a joint structure showing a joint having a wide width.

FIG. 5 is a cross-sectional view of a joint structure showing a joint having a narrow width.

[Explanation of symbols]

 10 joint structure 11 fixed joint material 12 surface fin piece 13 leg fin piece 14 first middle fin piece 15 first end fin piece 16 second middle fin piece 17 second end fin piece 18 flat surface 19 thick part 20 soft joint Material 21 First seal part 22 Second seal part

Claims (3)

[Claims] 1. A flexible joint material which is continuous in a cross-sectional direction and a soft joint material which is filled in the fixed joint material, wherein the fixed joint material includes a surface fin piece and a back surface of the surface fin piece. And a first intermediate fin piece and a first terminal fin piece integrally formed with the leg fin piece on one side surface side of the leg fin piece, and the leg fin. A second intermediate fin piece and a second terminal fin piece integrally formed with the leg fin piece on the other side surface side of the piece; and a first intermediate fin piece and a first terminal fin piece of the standard joint material. The soft joint material is filled in between to form a first seal portion, and the soft joint material is also filled in between the second intermediate fin piece and the second end fin piece of the regular joint material. A joint structure, wherein a second seal portion is formed. 2. The joint structure according to claim 1, wherein the first intermediate fin piece and the first terminal fin piece have a flat surface formed substantially parallel to the leg fin piece at the tips thereof. 3. The joint structure according to claim 1, wherein a thick portion is formed in the vicinity of the root of the second intermediate fin piece with the leg fin piece.