JPH1061156A - Architectural plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To strengthen a connecting structure by laminating and adhering medium quality fiber boards through a sheet, and arranging a tongue composed of the sheet and a medium quality fiber board part containing the whole both side baserock layers on one side edge and a groove on the other side edge. SOLUTION: Nonwoven fabric, resin-impregnated paper or the like are used as a sheet 3, and two medium quality fiber boards 2 to which an adhesive such as urea resin is applied are laminated on an inside surface through the sheet 3, and a thermocompression press is performed. A tongue 5 composed of the sheet 3 and its both side medium quality fiber board 2 part is projected to one side edge, and a groove 9 is made on the residual other side edge. In the tongue 5, the sheet 3 is interposed between the medium quality fiber boards 2, and an adhesive is impregnated into the sheet 3 and a part of the both side medium quality fiber boards 2, and its structure is strengthened. Since a tongue 5 forming part of the medium quality fiber boards 2 contains the whole baserock layers, the tongue 5 is formed as a further strong structure in this point. Therefore, the tongue 5 is strengthened, and damage is prevented, and a use of the medium quality fiber boards 2 can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium fiberboard (MD)
F) The present invention relates to a reed structure of a building board using F).

[0002]

2. Description of the Related Art Recently, a medium fiberboard has been widely used as a building board for a wall material and a flooring material. However, since the medium fiberboard is a molded board, there is a problem that its strength is inevitably low.

[0003]

Therefore, when sprouts are formed on a medium fiberboard, the sprouts are fragile so that the male sprouts are broken and their dimensions become unstable. There was a problem that a structure could not be obtained.

[0004] It is an object of the present invention to provide a building board made of a medium fiber board that can be connected with a sane.

[0005]

According to the present invention, two intermediate fiberboards are laminated and bonded to each other via a sheet.
On one side edge, a male sprung composed of a sheet and a medium fiberboard portion including all the rock layers on both sides was formed, and a female sprung was formed on the other side edge.

[0006] According to the above configuration, since the male mushroom has a sheet interposed between the medium fiberboards and is formed by a portion including the entire bedrock layer of the medium fiberboard, the strength is high.

[0007]

FIG. 1 shows a side view of a building board.

[0008] The building board 1 is formed by laminating and bonding two medium fiber boards 2 via a sheet 3.

As the above-mentioned medium fiber board 2, a board having a thickness of 3 mm is used.

The sheet 3 may have a thickness of 0.025-0.
100 mm Japanese paper, nonwoven fabric, polyolefin-based film, parchment paper, resin-impregnated paper, and the like are used.

Then, the building board 5 is, as shown in FIG.
Each of the medium fiber boards 2 having an inner surface coated with an adhesive 7 such as a urea resin, a urea melamine resin, or a urea / vinyl acetate resin is laminated via a sheet 3 and is manufactured by hot-pressing.

The building board 1 has an edge on one side, that is, an edge continuous in one longitudinal direction and one direction perpendicular to the sheet 3, a sheet 3 and a medium fiber board 2 on both sides thereof. A male sprue 5 is formed to protrude, and a female sprue 9 is formed at the remaining edge on the other side.

As described above, the thickness of the medium fiber board 2 is 3
mm, the building board 1 is configured to be slightly thicker than 6 mm as a whole. And
The thickness of the male sprue 5 is about 2 mm, that is, the male sprue 5 has a thickness of one sheet 3 and one of the medium fiberboards 2 on both sides thereof.
mm portion 2a.

FIG. 3 shows the cross-sectional structure of the male sprue 5 portion. As described above, the portion 2a forming the male sprue 5 is 1 mm thick, that is, 1 mm thicker than the surface of the 3 mm thick medium fiber board 2.
A portion having a thickness of ３ is used, and the portion 2a includes all the rock layers 6 formed to be about １ ／ thicker than the surface. The bedrock layer 5 is a hard portion having a high specific gravity of 0.8 to 1.2 (specific gravity of the middle portion is 0.4 to 0.8) formed on the surface when the medium fiberboard 2 is formed. is there.

According to the above-described configuration, the male muzzle 5 firstly has the sheet 3 interposed between the intermediate fiber boards 2 and the adhesive 7 is applied to the sheet 3 and the portions 2a of the intermediate fiber boards 2 on both sides.
Is impregnated, so that the structure becomes strong.

In addition, since the portion 2a of the intermediate fiber board 2 forming the male sprue 5 includes the entire bedrock layer 6, the male sprue 5 has a stronger structure in this respect.

In this manner, the male sprue 5 that can realize a strong connection structure without breakage is obtained.

[0018]

As is apparent from the above description, according to the above configuration, the male mushroom is formed by a portion in which a sheet is interposed between the medium fiberboards and which includes the entire bedrock layer of the medium fiberboard. As a result, the strength is increased, so that the male shank is not broken, and a strong connection structure can be obtained.

As a result, the connection structure of the medium fiberboard can be performed without any trouble, and as a result, the applications of the medium fiberboard are expanded.

[Brief description of the drawings]

FIG. 1 is a side view of a building board of the present invention.

FIG. 2 is a manufacturing drawing of the building board of the present invention.

FIG. 3 is an enlarged side view of a main part of the building board of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building board 2a Medium fiber board part containing all the rock layers 2 Medium fiber board 3 Sheet 5 Male slab 6 Rock layer 9 Female sane

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B32B 21/06 B32B 21/06

Claims (1)

[Claims] 1. A two-ply fiberboard is laminated and bonded via a sheet, and one end of the fiberboard has a male muzzle composed of a sheet and a fiberboard part including all the rock layers on both sides of the sheet. An architectural board characterized in that a female edge is formed on a side edge.