JPH0461939B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for joining exterior wall boards having a joint portion in the form of a strip or in the form of an interlocking joint.

[Conventional technology]

In consideration of ease of construction and beautiful finished appearance of long wall boards for construction, the joints at both edges in the width direction are usually formed in a serpentine or interlocking shape.

When using such wall boards as exterior wall boards,
From the standpoint of waterproofing, there are various methods of sealing the joints, such as applying sealant to the joints in advance at the factory, and applying sealant to the joints of the external wall boards after pasting them at the construction site. Construction methods and construction methods that combine these are used.

[Problem that the invention seeks to solve]

When installing an irregularly shaped sealing material using this construction method, the shape of the irregularly shaped sealing material is not always constant and this may cause water leakage.

Furthermore, although a shaped sealing material is sometimes bonded to the exterior wall board in a factory, there is a drawback that equipment and labor costs are high.

On the other hand, the method of filling joints with amorphous sealing material on site requires skill in filling, increases construction costs, and even then, complete watertightness may not be achieved.

The object of the present invention is to improve the above-mentioned conventional construction method and eliminate the drawbacks of the conventional method.

[Means for solving problems]

The above purpose is to form a dovetail-shaped cross-section at the tip of the male or underside when joining exterior wall panels that have a dovetail-like or interlocking joint, and to form a complementary dovetail groove on this. This is achieved by a method of joining external wall boards, in which a long regular sealing material is fitted, and then the female or outer part of the adjacent external wall boards is fitted and joined between the external wall boards.

〔Example〕

Hereinafter, embodiments will be described with reference to the accompanying drawings. Fig. 1 shows an example of a seam-shaped joint.
The male fruit 2 of the outer wall board 1 is shown at the bottom, and the female fruit 3 of the outer wall board 1 is shown at the upper part. The tip of the male fruit is dovetail-shaped cross section 2A
A long regular sealing material 4 having a dovetail groove 4 formed in advance to be complementary to the dovetail shape is fitted into the dovetail cross section 2A in a factory.

In particular, since cement-based exterior wall boards are usually manufactured by extrusion molding, the above-mentioned dovetail cross section 2A can be easily molded.

Further, FIG. 2 shows another embodiment showing a facing joint, in which a back seam 12 is shown at the bottom and a front seam 13 is shown at the top. As in the embodiment shown in FIG. 1, the tip of the backing 12 is formed into a dovetail cross section 12A, into which a long regular sealing material 14 having a dovetail groove 14A is fitted.

For the above-mentioned regular sealing materials 4 and 14, chloroprene rubber, polyurethane, soft vinyl chloride, etc., and/or foamed products thereof are used, and in the case of foamed products, those with closed cells are preferable. Also, shaped sealing material 4,1
It is convenient to form the included angle of 4 to be slightly smaller than the angle of the tip of the male seed 2 and the underside 12.

In this way, when the outer wall board 1 or 11 with the regular sealing material 4 or 14 attached to the male part 2 or the back part 12 is fitted into the female part 3 or the front part 13 of the adjacent outer wall board 1 or 11, the outer wall board Even if there is a misalignment between the phases, the regular sealing material will not come off, and the elasticity of the regular sealing material will provide good watertightness between the outer wall panels.

In the above construction method, the shaped sealing material is fitted to the exterior wall board in a factory with a well-organized management system, but even if carried out at the construction site, no skill is required.

〔Effect of the invention〕

Since the present invention is configured as described above, not only no adhesive is required for attaching the shaped sealing material, but also no skill is required, which helps to reduce labor costs and shorten the construction period. Furthermore, since the fixed-shaped sealing material can be installed firmly and accurately, many advantages can be obtained with a simple construction method, such as complete rain protection.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 1A is a perspective view of a regular sealing material used in FIG. 1, FIG. 2 is a sectional view of another embodiment of the present invention, and FIG. 2
FIG. 3 is a perspective view of a regular sealing material used in the figure. 1, 11... External wall board, 2... Yuji, 2A, 12
A...Dovetail shape, 3... Female fruit, 4, 14... Regular sealing material, 4A, 14A... Dovetail groove, 12... Back fruit, 13... Front fruit.

Claims (1)

[Claims] 1. When joining external wall panels having a joint in the form of a serpentine or an interlocking joint, the cross section of the tip of the male fruit 2 or the back fruit 12 is formed into a dovetail shape 2A, 12A, and a complementary dovetail groove is formed on this. An outer wall formed by fitting the long shaped sealing materials 4 and 14 having 4A and 14A, and then fitting the female fruit 3 or the front fruit 13 of the adjacent outer wall boards 1 and 11 to join the outer wall boards to each other. How to join boards.