JP2001065146A - Gasket for exterior wall joint and exterior wall structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gasket capable of maintaining sealability between a cover lips and exterior wall member or even between the cover and exterior wall member even in the case where the pushing force of the cover lip is weak because of a level difference between two exterior walls or the like. SOLUTION: A pair of cover lips 14 extending diagonally are toward a leg portion 12 are provided at the right and left edge portions of the cover 11 of the gasket 10. A cohesive seal material 15 is provided on the lower side surface of these cover lips 14. This seal material 14 is pushed to exterior wall materials 20L, 20R by a cover lip 14 and adhered to the exterior wall members 20L and 20R.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasket for an outer wall joint of a building and an outer wall structure.

[0002]

2. Description of the Related Art Generally, joints formed between two outer wall materials are sealed with gaskets. The gasket has a cover that spans between the outer surfaces of the two outer wall materials. A leg extends from the center of the cover at a right angle to the cover, and the leg is inserted into the joint.
A seal lip (a leg lip) is provided at an intermediate portion of the leg, and a guide lip (a leg lip) is provided at a tip portion (an end opposite to the cover). These lips are 2
The joints are sealed by pressing against the mutually facing end faces of the two outer wall materials.

In the gasket described in Utility Model Registration No. 2593545, a pair of cover lips further extend diagonally from both edges of the cover toward the legs. The cover lip is pressed against a corner between the end surface of the outer wall material and the outer surface. This seals the space between the cover lip and the outer wall material, and thus the space between the cover and the outer wall material.

[0004]

In the conventional structure described in the above publication, the seal between the cover lip and the outer wall material is made only by the elastic force of the cover lip. Therefore, unless the cover lip is made thick to increase the elastic force, the sealing property cannot be sufficiently exhibited. Also, if there is a step between the outer surfaces of the two outer wall materials, the contact of the cover lip on the outer wall material on the recessed side is weakened, and the sealing property is impaired. Furthermore, if there are fine irregularities such as burrs at the corners of the outer wall material, a gap is formed between the cover lip and the outer wall material, making it difficult to ensure sealing performance.

[0005]

Means for Solving the Problems To solve the above problems, the invention according to claim 1 is characterized in that (a) a first outer wall material and a second outer wall disposed apart from the first outer wall material. A cover extending between outer surfaces of the cover and (b) a leg that is suspended from a central portion of the cover and inserted into a joint formed between the first and second outer wall materials; ) A leg lip extending from the leg toward opposite end surfaces of the first and second outer wall materials and pressed against these end surfaces;
(D) An outer wall joint gasket comprising a cover lip extending obliquely from both edges of the cover toward the legs, and the first and second outer wall materials of the cover lip. A sealing material having adhesiveness is provided on the surface facing the surface of the outer wall material, and the space between the sealing material and the surface of the outer wall material is made watertight. Here, it is desirable that the sealing material has flexibility to such an extent that it can be deformed in accordance with irregularities on the surface of the outer wall material. Further, it is desirable that the sealing material is formed of butyl rubber.

According to a second aspect of the present invention, in the outer wall structure in which the first and second outer wall members are arranged apart from each other and a gasket is provided at a joint formed between the outer wall members, A) a cover extending between the outer surfaces of the first and second outer wall materials; (b) a leg which is hung from the center of the cover and inserted into the joint;
A leg lip extending from the leg toward the end faces of the first and second outer wall materials facing each other and pressed against these end faces, and (d) the cover is inclined from both edges of the cover. A cover lip extending toward the leg, and an adhesive sealing material is interposed between the cover lip and the first and second outer wall materials;
The space between the sealing material and the surface of the outer wall material is watertight.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The outer wall structure of the building shown in FIG. 1 includes a left outer wall material 20L (first outer wall material) and a right outer wall material 20L.
R (the second outer wall material) are arranged apart from each other, and joints 21 are formed between the outer wall materials 20L and 20R.
The gasket 10 is provided at the joint 21.

FIG. 2 shows the gasket 10. The gasket 10 is formed by extruding an elastic resin such as rubber, and has left and right outer wall materials 20L and 20R.
1 has a cover 11 spanned between the outer surfaces (the upper surface in FIG. 1), and leg portions 12 (pending from the central portion of the cover 11) extending at right angles from the central portion of the cover 11. It is T-shaped. A pair of guide lips 13 (leg lips) protruding left and right is provided at the distal end (the lower end in FIG. 2) of the leg 12.

The left and right edges of the cover 11 have legs 1
A pair of cover lips 14 extending diagonally toward 2 are provided. On the lower side of these cover lips 14,
A sealing material 15 made of butyl rubber is provided. Butyl rubber has no water permeability, can exhibit a high water-stopping effect, and has sufficient flexibility and adhesiveness.
In addition, as a material of the sealing material 15, in addition to butyl rubber,
An acrylic resin tape or a foam may be used. In the case of foam, each cell is independent and uses a closed cell structure that is not connected to other cells, and in order to impart adhesiveness, for example, an acrylic adhesive material is applied to both surfaces, Stick a tape.

A method of attaching the gasket 10 having the above structure to the joint 21 will be described. First, guide lip 1
3 and the leg 12 are inserted into the joint 21. The guide lip 13 is pressed against mutually facing end faces of the left and right outer wall materials 20L and 20R. Thereby, the guide lip 1
3 and the end surfaces of the outer wall materials 20L and 20R are sealed. The leg 12 is positioned at the center of the joint 21. Further, the guide lip 13 and the outer wall materials 20L, 20R
The gasket 10 is prevented from moving in the opposite direction to the insertion direction, the gasket 10 is prevented from coming off, and the elastic force of the cover lip 14 described later can be sufficiently exhibited. .

After the guide lip 13 and the leg 12 are inserted into the joint 21 until the left and right edges of the cover 11 abut against the outer surfaces of the left and right outer wall members 20, the cover 1 is further moved.
1 is pressed strongly against the outer wall material 20. In this push,
A jig such as a roller may be used. Thereby, the sealing material 15 is securely bonded to the outer wall material 20.

After that, the pressing of the cover 11 is stopped,
The work of mounting the gasket 10 is completed. As shown in FIG. 1, in this state, the sealing material 15 is pressed against the outer wall materials 20L and 20R by the elasticity of the cover lip 14. Thereby, the sealing material 15 and the outer wall material 2
The space between the HL and the 20L surface is sealed (watertight). Moreover, since the sealing material 15 is adhered to the outer wall materials 20L and 20R due to its adhesiveness, even if the elastic force of the cover lip 14 is weak, the outer wall material 20L may be used.
L, 20R. Therefore, the sealing performance can be reliably maintained. Conversely, since the elastic force required for the cover lip 14 is reduced, the cover lip 14 can be made thinner accordingly, and the cost can be reduced.

Further, since the sealing material 15 has flexibility, even if there are fine irregularities such as burrs on the surfaces of the outer wall materials 20L and 20R, they can be deformed correspondingly. Therefore, no gap is formed between the sealing material 15 and the outer wall materials 20L and 20R, and the sealing performance is not impaired.

As described above, the sealing material 15 and the outer wall material 20
Since the seal between L and 20R can be reliably formed, there is no need to provide a seal lip in the conventional structure at the intermediate portion of the leg portion 12.

FIG. 3 shows another embodiment of the present invention. In this embodiment, the outer surface of the right outer wall material 20R is recessed downward in the figure with respect to the left outer wall material 20L, and a step is formed. For this reason, the left cover lip 14 is largely elastically deformed, and the left sealing material 15 is strongly pressed against the outer wall material 20L, thereby exhibiting high sealing properties.

On the other hand, the elastic deformation of the right cover lip 14 is small, and the force for pressing the right seal material 15 against the outer wall material 20R is small. However, the right sealing material 15 is the outer wall material 2
It is adhered to 0R and never separates from it. Therefore, sufficient sealing performance can be ensured even in the outer wall material 20R on the recessed side.

The present invention is not limited to the above embodiment, but can adopt various forms. For example, the sealing material 15
It may be separate from the gasket. That is, the gasket 10 is constituted by the cover 11, the leg portion 12, and the lips 13 and 14, and when the gasket 10 is attached to the outer wall materials 20L and 20R, the sealing material 15 is attached to the cover lip 14 and the outer wall material 2.
0L and 20R.

[0018]

As described above, according to the present invention, since the sealing material is bonded to the outer wall material, even if the pressing force of the cover lip is weak due to a step between the two outer wall materials, the sealing material can be used. It does not leave the outer wall material. Therefore, the sealing performance between the sealing material and the outer wall material, and furthermore, the sealing property between the cover and the outer wall material can be reliably maintained. Conversely, since the elastic force required for the cover lip is reduced, the cover lip can be made thinner accordingly. Also, the need for a seal lip in the middle of the leg is eliminated.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an outer wall structure according to an embodiment of the present invention.

FIG. 2 is a sectional view of a gasket in the outer wall structure.

FIG. 3 is a sectional view showing an outer wall structure according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Gasket 11 Cover 12 Leg 13 Guide lip (Leg lip) 14 Cover lip 15 Seal material 20L Exterior wall material (first exterior wall material) 20R Exterior wall material (second exterior wall material) 21 Joint

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DA01 FA04 FA52 FA53 FA63 GA56 GA72 GA76 GA82 HD11 HE01 KA01 LA03 LA09 LA16 LA17 MA02 MA04 QA01 2E110 AA14 AB04 AB22 BA12 DA03 DA10 DC06 DD02 DD10 DD14 GA15Z GA24Z GA29Z GA32Z GA33Z GA33Z GB55Z 4J004 AA07 AB01 BA02 FA10

Claims (2)

[Claims] 1. A cover which is bridged between the outer surfaces of a first outer wall material and a second outer wall material which is arranged apart from the first outer wall material. A leg which is suspended from a central portion and inserted into a joint formed between the first and second outer wall materials; and (c) from the leg portion to end faces of the first and second outer wall materials facing each other. An outer wall joint gasket comprising: a leg lip extending toward the end face; and a cover lip extending diagonally from the both edges of the cover to the cover toward the legs. A sealing material having adhesiveness is provided on a surface of the cover lip facing the first and second outer wall materials, and a watertight state is provided between the sealing material and the outer wall material surface. Gasket for outer wall joint. 2. An outer wall structure in which first and second outer wall materials are arranged apart from each other and a gasket is provided at a joint formed between the outer wall materials, wherein the gasket comprises: A cover extending between the outer surfaces of the second outer wall material, and (b) a leg hanging from the center of the cover and inserted into the joint.
(C) leg lips extending from the legs toward the mutually facing end surfaces of the first and second outer wall materials and pressed against these end surfaces; and (d) the cover is inclined from both edges of the cover. And a cover lip extending toward the leg portion, respectively, between the cover lip and the first and second outer wall materials.
An outer wall structure, wherein a sealing material having adhesiveness is interposed, and a watertight state is provided between the sealing material and the surface of the outer wall material.