JPH0744775U - Vertical joint structure of wallboard - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to improve the workability and waterproofness of the vertical joints that occur when wall boards are joined. An end surface 2 of at least one side 1 of the wall plates 1 and 1 arranged adjacent to each other has a cross-sectional shape 3 that protrudes to the outside of the end surface, and a protruding portion tip 3A is in contact with the end surface of the other side wall plate 1. It is fixed and reduces the contact area to prevent rainwater from penetrating due to capillary action.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a vertical joint structure of a wall plate.

[0002]

[Prior art]

BACKGROUND ART Conventionally, inorganic wall boards such as fiber reinforced cement boards have been very widely used as building wall boards. This seed wall plate is advantageous in that it can be mass-produced with the same material, and does not consume natural resources such as wood, and thus is very advantageous in terms of environmental protection. By the way, these inorganic wallboards have a male and female relationship with each other at both ends of the wallboards A, A which are normally joined up and down as shown in FIG. The joining step portions B ₁ and B ₂ to be fitted together are integrally formed, and the wall plates are connected to each other by this combination joining.

By the way, the connection of the wall plates in the vertical direction can be joined with good waterproofness by the joining step portion, but it is quite difficult to secure the waterproofness with respect to the joining of the vertical joint portion C which is the lateral connecting portion. was there. That is, in the lateral direction, it is often necessary to appropriately cut the wall plates A, A in accordance with the width W of the wall surface to be constructed, and therefore, the lateral end face C ′ of the wall plate is temporarily joined to the above-described joining step. Even if the portions B ₁ and B ₂ are formed, they may be cut off by cutting and become invalid. Therefore, normally, as shown in FIG. 5, the lateral end faces C ′ of the wall plates A and A are not provided with a joining step portion, but they are butted and the joint portion C is filled with the waterproof caulking D. It was waterproofed by.

[0004]

[Problems of conventional technology]

However, when filling the waterproof caulking D, it is necessary to take care so that the caulking material does not adhere to the periphery of the vertical joint, the filling work becomes very troublesome, and it easily deteriorates due to the effects of ultraviolet rays, heat, and dryness. So-called joint breakage causes a decrease in waterproofness, and if such a decrease in waterproofness occurs, rainwater may enter along the vertical joints and the water that has penetrated due to the capillary phenomenon does not evaporate easily, and a large amount may enter. There was a problem that it flowed into the lateral joint located at the lower end or directly into the wall foundation.

[0005]

[Problems to be solved by the device]

In view of the above problems, the present invention has been made for the purpose of obtaining a vertical joint structure of a wall board which has good waterproofness at the vertical joint portion in the wall board joint and is easy to install.

That is, the vertical joint structure of the wall plate of the present invention has a cross-sectional shape 3 in which at least one end face 2 of the wall plates 1 and 1 arranged adjacent to each other protrudes outward of the end face, and the tip 3 of the protruding portion 3
It is characterized in that A is brought into contact with and fixed to the end face of the wall plate 1 on the other side.

[0007]

【Example】

Next, an embodiment of this invention will be described. FIG. 1 is a sectional view of an essential part of an embodiment of the present invention, FIG. 2 is a sectional view of an essential part of another embodiment, and FIG. 3 is a sectional view of an essential part of still another embodiment. The vertical joint structure of the wall plate according to the present invention has a sectional shape 3 in which an end surface 2 of at least one side 1 of the wall plates 1 and 1 arranged adjacent to each other has a protruding shape outwardly of the end surface, and a tip 3A of the protruding portion is a wall on the other side. It is configured so as to be in contact with and fixed to the end surface of the plate 1.

In the above-described embodiment, the other end surface of the wall plate 1 has a flat shape. However, as shown in FIG. 2, the same protruding cross-sectional shape 3 is formed, and the protruding end tips 3A are brought into contact with each other. Alternatively, as shown in FIG. 3, the tip of the protruding portion may protrude on the front surface or the back surface of the wall plate 1, 1 (the front surface side in the illustrated example). Incidentally, reference numeral 4 in the figure denotes a waterproof sheet fixed to the wall base along the vertical joint C.

[0009]

[Action]

In this invention, the vertical joint C is butted with the adjacent wall plate 1 in a point contact with the cross section. Therefore, a gap is wide at a portion other than this contact point, and the permeation of rainwater due to the capillary phenomenon is prevented. Therefore, it is possible to prevent moisture from staying in the joint portion for a long period of time. In addition, direct penetration of rainwater from this contact point is prevented, and a relatively large space is secured on the back side of the wallboard, so even if rainwater may infiltrate smoothly to the lower wallboard surface. And it is dried early by air circulation when it is sunny.

[0010]

[Effect of device]

As described above, according to the vertical joint structure of the wall board of the present invention, waterproofing of the vertical joint portion formed in the lateral joint portion of the wall board can be easily obtained without using caulking material and the wall Since it is only necessary to adjust the end face shape at the time of cutting the plate, it is easy to carry out, and there is an effect that vertical joints excellent in waterproof property can be easily carried out.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of another embodiment.

FIG. 3 is a cross-sectional view of a main part of still another embodiment.

FIG. 4 is an explanatory perspective view showing a conventional example.

FIG. 5 is a sectional view showing a structure of a conventional vertical joint.

[Explanation of symbols]

 1 Wall plate 2 End face 3 Cross-sectional shape 3A Projection tip

Claims (1)

[Scope of utility model registration request] 1. A cross-sectional shape 3 in which at least one end surface 2 of wall plates 1 and 1 arranged adjacent to each other protrudes outward from the end surface.
The wall joint vertical joint structure is characterized in that the tip end 3A of the protrusion is brought into contact with and fixed to the end face of the wall plate 1 on the other side. Therefore, the vertical joint having excellent waterproof property can be easily implemented.