JPH06346522A - Joint structure for outer wall and its waterproofing material - Google Patents

Abstract

PURPOSE:To provide a joint structure for outer wall which can be easily constructed by a dry construction method to provide sure water proofing property, and also easily dressed. CONSTITUTION:A leaf springlike waterproofer 7 and a joint finishing material 8 are arranged on the inside and outside in a joint groove 2 formed between the face materials 4, 5 of an outer wall, and fitted thereto. The leaf springlike waterproofer 7 has a groove form having a corrugated sectional part 7a in a web part, and is fitted onto the joint grove inner surface in the closely pressed state by both flanges 7b. The joint finishing material 8 is formed of a rubber elastic body. The leaf spring-like waterproofer 7 may be formed of a metal leaf spring of a groove form having a corrugated sectional part on the web part, and a soft material for covering the top ends of both the flanges of this leaf spring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for an outer wall which is formed by a dry joint method on joints formed between face materials of the outer wall, and a waterproof material therefor.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a joint 33 formed between outer wall members 32, 32 between a pair of outer wall panels 31, 31 has a backup member 34 and a wet sealing member 35.
Wet-sealing is performed by the wet sealing method. 36
Is an outer wall base material.

[0003]

However, since it is a wet method, it has the following various problems. That is, a. The construction period depends on the weather and the construction period becomes longer. b. Specialized craftsmen are required, and it is difficult to secure craftsmen because it is dirty work. c. The quality depends on the skill of the craftsman and is not stable. d. The sealing material 35 may be broken due to a change in joint width due to expansion and contraction of the outer wall material 32. e. It is difficult to confirm after the construction whether the construction has been performed properly. f. It is difficult to match the color with the pre-coated outer wall material.

For this reason, various dry joint construction methods have been tried, but the joint groove has a large dimensional variation, and it is difficult to obtain reliable watertightness by a structure such as simply press-fitting an elastic seal material into the joint groove.

An object of the present invention is to provide a joint structure of an outer wall which can be constructed by a dry method, can obtain a reliable waterproof property, and can be easily applied with makeup, and a waterproof material therefor.

[0006]

According to the joint structure of the outer wall of the present invention, the leaf spring waterproof material and the joint finishing material are arranged inside and outside in the joint groove formed between the face materials of the outer wall. It was made. The leaf spring-shaped waterproof material is a groove-shaped one having a corrugated cross-section portion in the web portion, and is fitted to both inner surfaces of the joint groove in pressure contact with both flanges. The joint finishing material is made of a rubber-like elastic material. The leaf spring-like waterproof material may be composed of an outward groove-shaped metal leaf spring having a wavy cross section in the web portion and a soft material that covers the ends of both flanges of the leaf spring.

[0007]

With this structure, the joint finishing material and the leaf spring-like waterproof material are doubly waterproofed, and the waterproofness is enhanced. Since the leaf spring waterproof material is a groove leaf spring having a wavy cross-section portion in the web portion, elasticity having an appropriate elastic coefficient can be obtained over a wide displacement range. Therefore, it is possible to maintain the watertightness by following the slight variation in the joint size and maintaining the pressure contact state with the inner surface of the joint groove. The joint finishing material combines the makeup of joint grooves and waterproofing. When the leaf spring-like waterproof material is composed of a leaf spring and a soft material, the restoring force of the leaf spring provides a pressing force against the inner surface of the joint groove, and the soft material provides close contact with the inner surface of the joint groove. Therefore, a strong pressing force provides high adhesion and excellent waterproofness.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG. The joint structure of the outer wall is applied to the joint groove 2 between the pair of adjacent outer wall panels 1, 1. Each outer wall panel 1
An outer wall base material 4 and an outer wall material 5, which are outer wall materials, are attached to the outdoor surface of the panel frame 3, respectively. The panel frame 3 of each outer wall panel 1 is a pillar 6 made of a square pipe or the like.
Mounted on. The outer wall base material 4 is made of waterproof plywood,
A cement plate, a slate plate, or the like is used for the outer wall material 5.

The leaf spring-like waterproof material 7 and the joint finish material 8 are arranged inside and outside the joint groove 2 and are fitted in a press-fit state. The leaf spring waterproof member 7 is made of a metal leaf spring processed into a groove shape or a hard resin molded product, and the web portion thereof has a corrugated corrugated cross-section portion 7a. Both the flanges 7b of the leaf spring waterproof member 7 are brought into pressure contact with the outer wall member 5 or the small edges of both the outer wall member 5 and the outer wall base member 4. If necessary, both flanges 7b are bonded to the inner surface of the joint groove 2 with an adhesive. The adhesive may be an adhesive. The adhesive may be applied at the time of construction, or may be applied to the flange 7b in advance and covered with a release sheet or the like. Joint finishing material 8
Is made of a rubber-like elastic body such as rubber or synthetic resin, and a plurality of elastic fin portions 8a are integrally formed on both side surfaces.

With this structure, the joint finishing material 8 and the leaf spring-like waterproof material 7 are doubly waterproofed, and the waterproofness is enhanced. The leaf spring waterproof material 7 has a corrugated cross-section portion 7a on the web portion.
Since it is composed of a groove-shaped leaf spring, it is possible to obtain elasticity with an appropriate elastic coefficient over a wide displacement range. Therefore, the pressure contact state with the inner surface of the joint groove can be maintained by following a slight variation in joint size, and the rainwater can be reliably stopped. Therefore, the degree of freedom is high. Further, even if the joint width varies with the expansion and contraction of the outer wall material 5 after the construction, the variation can be followed and stable waterproofness can be obtained. Since the joint finishing material 8 is made of an elastic material such as rubber, it also serves as a makeup for the joint groove 2 and it is easy to match the color even when the outer wall material 5 is pre-coated. Moreover, stains are unlikely to occur. Further, since the leaf spring waterproof material 7 and the joint finishing material 8 can be installed by a dry construction, the sealing work is simple, no sealing profession is required, and the quality is not affected by the skill of the operator. In addition, inspection can be performed easily even after the sealing work is completed.

2 and 3 show another embodiment of the present invention. In this example, the leaf spring waterproof material 11 is a soft material 13 that covers the metal leaf spring 12 and the ends of both flanges 12b thereof.
It consists of and. The metallic leaf spring 12 is of an outward groove type having a corrugated cross-section portion 12a at the center of the web portion. The soft material 13 is made of soft rubber, synthetic resin, or the like, and has a plurality of elastic fins 13a on the outer side surface. The other structure is the same as that of the above embodiment. In the case of this configuration, the restoring force of the metal leaf spring 12 provides the pressing force to the inner surface of the joint groove 2, and the soft material 13 provides the adhesion with the inner surface of the joint groove. Therefore, a strong pressing force provides high adhesion, and further excellent waterproofness can be obtained.

Although each of the above-described embodiments has been described with reference to the case of applying the vertical joint, the present invention can be applied to the case of the horizontal joint.

[0013]

According to the joint structure of the outer wall of the present invention, a leaf spring-like waterproof material and a joint finishing material are provided in the joint groove, and the leaf spring-like waterproof material is a groove-shaped one having a corrugated cross-section portion in the web portion. Therefore, it is possible to obtain reliable waterproofness even if the joint size is slightly different, and it is easy to apply makeup. In addition, since it can be constructed by the dry construction method, the construction period is shortened, no professionals are required, the quality is stable, there is no problem of sealing breakage, and inspection after construction is easy. When the leaf spring-like waterproof material is composed of a leaf spring and a soft material, a high pressing force provides high adhesion, and further excellent waterproofness is obtained.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view showing an embodiment of the present invention.

FIG. 2 is a horizontal sectional view of another embodiment of the present invention.

FIG. 3 is a partial perspective view of a leaf spring-shaped waterproof material in the same embodiment.

FIG. 4 is a horizontal sectional view of a conventional example.

[Explanation of symbols]

1 ... Outer wall panel, 2 ... Joint groove, 3 ... Panel frame, 4
... outer wall base material, 5 ... outer wall material, 6 ... pillar, 7 ... leaf spring-like waterproof material, 7a ... corrugated cross-section portion, 8 ... joint finishing material, 11 ... leaf spring-like waterproof material, 12 ... metal leaf spring, 12a ... Corrugated cross section, 13 ... Soft material

Claims (3)

[Claims] 1. A joint groove formed between face members of an outer wall,
A groove-shaped leaf spring-like waterproof material having a corrugated cross-section in the web portion is fitted in pressure contact with the inner surface of the joint groove with both flanges, and is located outside the waterproof material and is made of a rubber-like elastic body. A joint structure of an outer wall in which a joint finishing material is fitted in the joint groove. 2. The leaf spring-like waterproof material comprises an outwardly grooved metal leaf spring having a corrugated cross-section portion in the web portion, and a soft material covering the ends of both flanges of the leaf spring. Structure of the outer wall of the building. 3. A joint groove formed between the face materials of the outer wall, which is composed of a groove-shaped metal leaf spring having a corrugated cross-section in the web portion and a soft material covering the tips of both flanges of the leaf spring. Waterproof material fitted to.