JPS6340604Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an inorganic wall board, and mainly relates to an inorganic wall board having hollow holes obtained by extrusion molding an inorganic kneaded material.

BACKGROUND ART Conventionally, inorganic wall plates having hollow holes penetrating through their wall thickness and obtained by extrusion molding are widely known and used.

As shown in Fig. 1, these wall board materials have both ends A in the width direction, an engagement step B that also serves as a drainer, and
B' is formed, therefore, the wall plate C is moved in the width direction (P)
Water leakage accidents from the joint end surface C ₁ rarely occur when joining the walls, but since the longitudinal end surface D is usually a flat cut surface, it is especially important to avoid placing the wall plate C vertically as shown in the figure. When constructing a wall surface vertically downward by abutting the longitudinal end faces D, there was a drawback that water leakage from the abutting face _C2 could not be sufficiently prevented.

However, both widthwise ends A,
If the engaging step portions B and B' are formed as in A,
Although the above-mentioned drawbacks can be overcome, since the longitudinal end surface D is a surface perpendicular to the extrusion direction during wallboard manufacturing,
It is impossible to perform batch molding using a molding die, and since the shape is complicated, cutting it is also extremely difficult for mass production.

Therefore, in the past, it was necessary to insert a separately prepared waterproof sealing material etc. into the longitudinal end face D and join them, which made the work cumbersome, and if the sealing material protruded outside, it would damage the wall surface. The problem was that the appearance of the product was severely damaged.

In view of the above-mentioned drawbacks, this invention was made with the aim of providing an inorganic wall board that can prevent water leakage from the end faces in the length direction and is easy to manufacture. In an inorganic wall plate having a hollow hole penetrating through the inside thereof, a convex strip continuous in the width direction is formed at the edge of the hollow hole opening on one end face of the hollow hole, and the other side It is characterized in that a groove capable of receiving the protruding stripe is formed on the end face of the protrusion.

Next, this invention will be explained using examples.

FIG. 2 is a perspective view of an embodiment of this invention, and FIG. 3 is a sectional view taken along the - line in FIG.

The inorganic wall board 1 of this invention is an inorganic wall board having hollow holes 2, 2 penetrating through the wall thickness along the length direction (L). Among the open end surfaces 3A and 3B, one hollow hole opening end surface 3A is provided with a convex strip 4 that continues in the width direction (arrow M) at the opening edge of the hollow hole, and the other end surface 3B is provided with a convex strip 4 that continues in the width direction (arrow M). A groove 5 for receiving the protruding strip 4 is formed therein.

Incidentally, in the above embodiment, a case was shown in which one set each of the protruding stripes 4 and the grooves 5 for receiving the same were provided on the front side and the back side of the wall board 1, but on the front side,
It may be provided only on either one of the back sides.

Further, reference numerals 6 and 7 in the figure are fitting members formed at both ends of the wall plate 1 in the width direction and having a male and female relationship with each other.

Further, as another embodiment, as shown in FIG. 4, if a sealing material 8 is pasted in advance in the groove 5, it is advantageous to improve the waterproof property, which will be described later.

And, inorganic wall board material 1 of the embodiment of this invention
When constructing a wall surface using the above, the width direction (arrow M) is joined by fitting members 6 and 7 as in the conventional method, and the protrusions 4 and grooves 5 are fitted together in the length direction. Then, they are joined together.

Therefore, even on the longitudinal end surface of the wall board 1, the fitting of the protrusions 4 and the grooves 5 effectively prevents rainwater from entering, and even if rainwater does not enter beyond these fitting parts, it is possible to prevent rainwater from entering. Even if it does, it can be effectively prevented from flowing into the hollow hole, being discharged downward, and advecting toward the back surface of the wall board.

This idea is structured as above, so
It is very easy to waterproof the longitudinal ends of extruded wall boards, which was difficult to do in the past, and since the protrusions and grooves are simple in shape, they can be cut into unit lengths at the same time after extrusion. It has various practical effects, such as being easy to form and easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional example, Fig. 2 is a perspective view of an embodiment of this invention, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a sectional view of another embodiment. be. 1... Inorganic wall plate, 2... Hollow hole, 3A, 3
B...End face, 4...Convex stripe, 5...Groove.

Claims (1)

[Claims for Utility Model Registration] (1) In an inorganic wall plate having a hollow hole penetrating through the wall thickness along the length direction, the hollow hole on one of the end faces where the hollow hole opens. 1. An inorganic wall board, characterized in that a protruding strip continuous in the width direction is formed on an opening edge portion, and a groove capable of receiving the protruding strip is formed on the other end surface. (2) The inorganic wall board according to claim 1 of the utility model registration claim, in which a sealing material is pasted in advance in the groove.