JPS587875Y2 - Structure of body joint - Google Patents

Description

[Detailed description of the invention] The present invention is a structure of a body joint formed between external wall panels fixed to the outer surfaces of upper and lower floor units that are connected to each other in a multi-story unit house. Regarding.

In this type of conventional structure, a fitting part for the upper end of the outer wall board of the lower floor unit and a facing part located opposite to the inner surface of the lower end of the outer wall board of the upper floor unit are rigidly connected. For waterproofing purposes, caulking was applied between the inner surface of the upper outer wall board and the facing section.

In this case, since the body insertion joint was constructed as a rigid body, it was possible to absorb the relative displacement of the upper and lower outer wall panels in the vertical direction due to thermal expansion, contraction, vibration, etc. However, the problem is that cracks and breaks occur in the joints, impairing waterproof performance.

In addition, caulking had to be applied to the inner surface of the upper exterior wall panel through a small gap between the upper and lower exterior wall panels, which made the work extremely difficult and required a considerable amount of caulking material, resulting in high costs. It had the disadvantage of being expensive.

The purpose of the present invention is to propose a structure of a trunk joint that can eliminate the above-mentioned drawbacks.

The structure of the trunk joint according to the present invention has a fitting part for the lower end of the upper floor unit outer wall board, a fitting part for the upper end of the lower floor unit outer wall board, and a bendable and extensible flexible part that connects these upper and lower fitting parts. and a drain hole is formed at the bottom of the upper fitting part, and the upper surface of the lower fitting part is formed into a drainage slope surface facing outward and downward.
It is characterized by this.

According to the present invention having such a configuration, there are the following functions and effects.

(a) Since the means for fixing the trunk joints to the upper and lower exterior wall panels are both held by fitting parts, the fixing work is no longer the tedious work of filling caulking material through small gaps. It's much easier than that.

(b) Since the upper and lower fitting parts are connected by a flexible part that can be bent and expanded, if this flexible part is slightly contracted from its free state, the upper and lower fitting parts are fitted to each outer wall board. , a secure and strong fit in an elastic tight state is achieved.

(c) When there is relative displacement between the upper and lower outer wall plates due to thermal expansion, contraction, vibration, etc., this displacement is absorbed and alleviated by the bending and stretching action of the flexible portion.

Therefore, it is possible to reliably prevent cracks and breakage of the body insertion joint.

(d) As in (a) above, an upper fitting is provided to facilitate the fixing work to the external wall board, and as in (b) above, to enable the close contact effect by bending and stretching the flexible part. The joint is
It acts like a receptacle for rainwater that flows down the upper exterior wall board.

This is a new problem that is not seen in the conventional structure in which the opposing portion is located on the inner surface of the upper outer wall board.

As a countermeasure for this problem, in the present invention, a drainage hole is formed at the bottom of the upper fitting part, so that rainwater that has flowed into this fitting part can be immediately drained away, and the deterioration of the outer wall panels and joints due to rainwater retention can be avoided. This problem can be avoided.

(e) The flexible part that connects the upper and lower fitting parts should be placed deeper than the surface that connects both fitting parts in order to improve flexibility and to avoid protruding outward, which would be unsightly. It is preferable to place them biased toward .

However, if the flexible part is placed too far in the back, rainwater that has penetrated there will tend to collect.

As a countermeasure for this, in the present invention, the upper surface of the lower fitting portion is made into a drainage slope surface, so that the above-mentioned problem does not occur.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a two-story unit house consists of an upper floor unit U1 mounted on the upper surface of a lower floor unit U2 and connected to each other.

A horizontally elongated gap S is formed between the outer wall plates 1 and 2 fixed to the outer surface of U2.

Both outer wall boards 1 and 2 are connected to both units U1. Angle member 4 connected with bolts 3, 3 to a beam member not shown in the drawing at U2
, 4 are fixed with nails 6, 6.

Therefore, a trunk joint 7 for making the gap S a waterproof joint is provided.
is constructed as a long piece, and in its cross-sectional shape, it has a fitting part 7a at the upper end, which is made up of opposing tongue pieces that fit into the lower end of the upper outer wall board 1 and the lower folded part of the upper angle member 4, and the lower end. A fitting part 7b consisting of opposing tongue pieces that fits into the upper end of the lower outer wall board 2, and a pair of upper and lower fitting parts 7a and 7b are integrally connected and are wave-shaped so that they can expand and contract in the vertical direction. It is composed of a flexible portion 7C that is bent and recessed toward the indoor side, and is constructed entirely by extrusion molding of synthetic resin material.

The upper surface of the lower fitting portion 7b is formed into a drainage slope surface 7d that slopes outward and downward.

The bottom of the upper fitting part 7a is formed into a downwardly recessed curved part, and drain holes 7e are formed at appropriate intervals in the longitudinal direction in the center of the curved part.
. . . are formed, and a small draining ridge 7f is integrally provided upwardly projecting from the bottom surface.

The lower fitting part 7b of the trunk joint 7 is fitted to the upper end of the outer wall board 2 fixed to the lower floor unit U2, and in this state, the upper outer wall board 1 is connected to the upper fitting part 7a at its lower end.
The nails 6 are fitted onto the upper crosspiece 5 and fixed by nails 6.

A finishing material 9 is sprayed onto the outer surfaces of both the outer wall panels 1 and 2 and the outer surface of the shell joint 7.

When the outer wall plates 1 and 2 are vertically displaced relative to each other due to heat or vibration, this displacement is absorbed and alleviated by the bending/stretching elastic deformation of the flexible portion 7C, so that no cracks or breaks occur in the joint 7.

Even if rainwater falls on the recessed part of the joint 7, the water can be drained well on the drain slope surface 7d.

Furthermore, even if the finishing material 9 is partly peeled off and rainwater enters the upper fitting part 7a along the outer surface of the upper outer wall board 1, the drain holes 7e...
Water is drained to the outside through...

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the structure of the barrel joint according to the present invention, and FIG. 1 is a schematic front view of a two-story unit house, and FIG. 2 is a longitudinal sectional side view of the main part. 1.2... External wall board, 7... Trunk joint, 7a, 7b... Fitting part, 7C... Flexible part, 7d... ...Drain slope surface, 7e...
・Drain hole.

Claims (1)

[Scope of utility model registration request] It has a fitting part 7a for the lower end of the upper floor unit outer wall board 1, a fitting part 7b for the upper end of the lower floor unit outer wall board 2, and a bendable and extensible flexible part 7C that connects these upper and lower fitting parts 7a and 7b. and the upper fitting part 7
A drain hole 7e is formed at the bottom of a, and the upper surface of the lower fitting part 7b is formed in a drainage slope surface 7d facing outward and downward.