JPS6329077Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a building board suitable for use in the interior of a building, particularly in areas requiring airtightness and watertightness.

(Conventional technology) Conventionally, building boards have been made by extruding synthetic resin and integrally molded into a gutter shape, and in which a heat insulating material such as synthetic resin foam is placed inside the gutter-like plate body, which has excellent moldability and Because it has excellent heat insulation properties and is not easily affected by water or moisture, it is widely used as wall or ceiling materials in bathrooms, washrooms, etc.

(Problem that the invention aims to solve) However, when used in areas such as bathrooms as mentioned above, if moisture such as water vapor enters through the joints between building boards, it can cause the base material and structural materials to rot. Because of this, there is a strong possibility that the durability of the building will be reduced. Therefore, it is required that the joint portion has a structure with excellent airtightness and watertightness.

For this reason, conventional methods have been implemented, such as configuring the side edges of building boards into complicated shapes such as a double-fitting structure, or fixing sealing materials such as soft elastic bodies to the side edges of building boards. Alternatively, although it has been proposed, it has problems such as insufficient airtightness and watertightness and troublesome construction.

It is an object of the present invention to provide a building board that has excellent airtightness and watertightness at the joint portion and can be easily constructed while taking advantage of the above-mentioned advantages of the conventional building board.

(Means for Solving the Problems) In order to achieve the above object, the solution of the present invention includes a groove that opens outward on one end surface and an upper surface portion that constitutes the upper surface of the groove. It has an extending portion extending outward, and has a protrusion portion on the other side end face opposite to the one side end face that protrudes outward and can fit into the groove, and is made of hard vinyl chloride resin. Consisting of an integrally molded gutter-like plate and a flexible tongue provided on the upper surface of the protrusion at the other end of the gutter-like plate, the tongue extends from the lower surface of the groove. The rising distance l ₁ to the lower surface is smaller than the rising distance l ₂ from the lower surface of the ridge to the tip of the tongue, and the rising distance l ₃ from the surface of the trough-like plate to the lower surface of the groove and from the surface of the trough-like plate. The rising distance _l4 to the lower surface of the protrusion is formed to be approximately the same.

(Function) With the above configuration, when constructing using the building board of the present invention, for example, after nailing the extending part of the building board to the base material, the protrusion of another building board is inserted into the concave groove of the building board. By sequentially repeating the operation of fitting the strips, construction surfaces such as walls or ceilings of bathrooms, washrooms, etc. can be easily formed.

Here, the above-mentioned building board has a side end of a portion above the protrusion at the other end where the protrusion is provided, and is formed into a tongue member having flexible elasticity, and the side end of the part above the protrusion is formed into a tongue member having flexible elasticity, and from the lower surface of the concave groove. Since the rising distance l ₁ from the lower surface of the protrusion to the lower surface of the protrusion is smaller than the rising distance l ₂ from the lower surface of the protrusion to the tip of the tongue body, when the protrusion is fitted into the groove, The tongue body contacts the lower surface of the extension and deforms so as to incline slightly inward, thereby pressing the lower surface of the extension with its flexible elasticity to form an airtight and watertight structure. Since the lower surface is brought into close contact with the lower surface of the groove by the pressing force due to the flexible elasticity of the tongue, the joint portion has a joint structure with excellent airtightness and watertightness. Moreover, since the protruding portion is pressed against the lower surface of the groove as described above, the width of each of the groove and the protruding portion may be set as long as the width of the protruding portion is smaller than the width of the groove. , it is possible to provide a margin for the fitting of the two, and it is possible to freely fit from the right side or diagonally lateral direction, resulting in excellent workability.

Furthermore, since the rising distance l ₃ from the surface of the trough-like plate to the lower surface of the concave groove and the rising distance l ₄ from the surface of the trough-like plate to the lower surface of the protrusion are approximately the same, the above-mentioned fitting A good construction appearance can be achieved without the time margin forming a step on the construction surface.

In addition, since the gutter-shaped plate is integrally molded with hard vinyl chloride resin, it has excellent moldability, has excellent heat insulation properties, and is not easily affected by water or moisture, so Together with its improved watertightness and airtightness, it is suitable as a wall or ceiling material for bathrooms, washrooms, etc.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 shows a building board A according to an embodiment of the present invention, in which 1 is a gutter-like plate body integrally molded in a gutter-shape with hard polyvinyl chloride resin, and one end surface of the gutter-like plate body 1. A concave groove 2 that opens outward is formed in the upper half portion, and an upper surface portion constituting the upper surface of the concave groove 2 is formed in the upper part of the one side end face and extends outwardly with respect to the one end face. An extension part 3 extending in a substantially right angle direction is integrally formed, and on the other end face of the gutter-like plate 1 opposite to the one end face thereof, an extension part 3 protrudes outward and fits into the groove groove 2. A possible protrusion 4 is integrally formed. Furthermore, on the upper surface of the other side end surface, that is, on the upper surface of the protrusion 4 on the other side end surface of the gutter-like plate body 1, there is a tongue strip having flexible elasticity made of a soft polyvinyl chloride resin whose wall thickness becomes thinner toward the tip 5a. A body 5 integrally projects upwardly and slightly inwardly. Then, the rising distance l ₁ from the lower surface 2a of the groove 2 to the lower surface 3a of the extending portion 3 is made smaller than the rising distance l 2 from the lower surface 4a of the protrusion 4 to the tip 5a of the tongue body ₅ . At the same time, the rising distance l ₃ from the surface 1a of the gutter-like plate 1 to the lower surface 2a of the groove 2 and the lower surface 4 of the protrusion 4 from the surface 1a of the gutter-like plate 1
It is formed so that the rising distance l ₄ up to point a is the same. Furthermore, a protrusion 6 having an acute-angled tip is integrally formed on the lower part of the protrusion on the other end surface where the protrusion 4 is provided. Furthermore, a heat insulating material 7 made of foamed polyethylene resin or other synthetic resin foam is inserted into the gutter-like plate 1.

Therefore, when constructing using the building board A, as shown in FIG. 2, for example, after nailing the extension part 3 of the building board A to the base material, By sequentially repeating the operation of fitting the protrusions 4 of other building boards A into the grooves 2, construction surfaces such as walls or ceilings of bathrooms, washrooms, etc. can be easily formed.

Here, the above-mentioned building board A has a tongue member 5 having a flexible elasticity at the side end of the portion above the protrusion 4 at the other end where the protrusion 4 is provided, and a recess. Since the rising distance l ₁ from the lower surface 2a of the groove 2 to the lower surface 3a of the extension portion 3 is smaller than the rising distance l ₂ from the lower surface 4a of the protrusion 4 to the tip 5a of the tongue 5, the When the protruding part 4 is fitted into the concave groove 2 as shown in Fig. 2, the tongue part 5 comes into contact with the lower surface 3a of the extending part 3, and is further deformed so as to be slightly inclined inward, thereby causing the extension. Extrusion 3 Bottom surface 3
a is pressed by its flexible elasticity to form an airtight and watertight structure, and at the same time, the lower surface 4a of the protruding portion 4 is brought into good contact with the lower surface 2a of the groove 2 by the pressing force due to the flexible elasticity of the tongue 5. Therefore, the joint part has a joint structure with excellent airtightness and watertightness. Moreover, since the protruding part 4 is pressed against the lower surface 2a of the concave groove 2 as described above, the width of each of the concave groove 2 and the protruding part 4 is such that the width of the protruding part 4 is the same as that of the concave groove 2. It only needs to be smaller than the width, and it is possible to provide a margin for fitting the two, and it is possible to fit from any direction such as directly horizontally or diagonally horizontally, and has excellent workability. becomes.

Further, a concave groove 2 is provided from the surface 1a of the gutter-like plate 1.
The rising distance l ₃ to the lower surface 2a and the surface 1 of the gutter-like plate 1
Since the rising distance l ₄ from a to the lower surface 4a of the protrusion 4 is formed the same, the above-mentioned margin at the time of fitting does not become a step on the construction surface, and a good construction appearance can be achieved. I can do it.

In addition, since the gutter-like plate A is integrally molded with hard vinyl chloride resin, it has excellent moldability, has excellent heat insulation properties, and is not easily affected by water or moisture, so the seam area Due to its improved watertightness and airtightness, it is suitable as a wall or ceiling material for bathrooms, washrooms, etc.

Further, if a protrusion 6 having an acute angle at the tip is provided on the lower part of the protrusion 4 on the other side end face where the protrusion 4 is provided, the protrusion 6 will be recessed when mating. Since it comes into contact with the lower side end surface of the groove 2, it is possible to create a joint structure that is even more watertight and airtight.

In the above embodiment, the tongue body 5 is made of a soft vinyl chloride resin, but even if a hard vinyl chloride resin is used instead of the soft vinyl chloride resin, the thickness can be made thinner toward the tip. It has sufficient flexibility and elasticity, and can ensure good airtightness and watertightness.

(Effects of the invention) As described above, according to the building board of the present invention, it has excellent moldability, heat insulation, moisture proofing, and waterproofing, and has excellent airtightness and watertightness at joints, and also has excellent airtightness and watertightness at seams. Since it is possible to construct a construction surface with good workability without causing any damage, it is possible to provide a construction board that is optimal as a wall material or ceiling material for bathrooms, washrooms, etc.

[Brief explanation of drawings]

The drawings illustrate the embodiments of the present invention.
The figure is a cross-sectional view of the building board, and Figure 2 is a cross-sectional view of the main part of the building board in its construction state. A...Building board, 1...Gutter-like board, 1a...Surface, 2...Concave groove, 2a...Bottom surface, 3...Extension portion, 3a...Bottom surface, 4...Protrusion portion, 4a...lower surface, 5...tongue striation, 5a...tip, 6...projection, 7...insulation material, _l1 to _l4 ...rise distance.

Claims (1)

[Claims for Utility Model Registration] (1) It has a concave groove that opens outward on one end surface and an extending portion that extends outward from the upper surface portion that constitutes the upper surface of the concave groove, and A gutter-like plate body integrally molded from hard vinyl chloride resin and having a protrusion protruding outwardly on the other end face opposite to the side end face and capable of fitting into the groove, and the gutter-like plate body. It consists of a tongue strip body having flexible elasticity provided on the upper surface of the protrusion on the other end surface of the body, and the rising distance l ₁ from the lower surface of the groove to the lower surface of the extension is from the lower surface of the protrusion to the tongue. The rising distance from the trough-like plate surface to the lower surface of the groove is smaller than l ₂ , and the rising distance from the trough-like plate surface to the lower surface of the groove l ₃ is approximately the same as the rising distance from the trough-like plate surface to the lower surface of the _ridge . A building board formed by (2) The building board according to claim (1) of the utility model registration claim, in which the tongue strata are made of hard vinyl chloride resin whose wall thickness becomes thinner toward the tip. (3) The building board according to claim (1) of the utility model registration claim, in which the tongue is made of soft vinyl chloride resin. (4) A utility model characterized in that the gutter-like plate body has a protrusion with an acute angle formed at the tip thereof integrally formed on the lower part of the protrusion on the other end face where the protrusion is provided. Registered Claims Paragraph (1), Paragraph (2) or Paragraph
Building board as described in (3). (5) Utility model registration claim No. 1, characterized in that the gutter-like plate has a heat insulating material inserted inside it.
Building boards as described in paragraph (1), (2), (3) or (4).