JPH07266305A - Architectural plate and manufacture thereof - Google Patents

Abstract

PURPOSE:To eliminate unevenness of color suction at the time of coating application and eliminate the production of burr, etc., by providing a groove, chamfer on an upper surface of a base material, laminating and adhering a thin veneer on the upper surface of the material, and bringing the veneer into close contact with the positions of the groove and the chamfer along its shape. CONSTITUTION:A recess 8 is provided at one end and a protrusion 9 is provided at the other of a base material 1 formed of a material such as a plywood. Grooves 2 are provided on an upper surface of the material 1 by skiving, and chamfers 3 are provided at end faces by skiving. Thus, the upper surface of the material 1 in which the grooves 2 and the chamfers 3 are provided is coated on an entire surface with an adhesive, a thin veneer 4 to become a surface decorative material is laminated on the material 1, interposed between a cushion material of a lower surface of an upper heating plate and a lower heating plate, and hot pressed to form a building material. When the material 1 and the veneer 4 are interposed between the upper and lower heating plates and hot pressed, the veneer 4 is pressed to the upper surface of the material 1 via the cushion material, the veneer 4 is brought into close contact with the surface of the material 1 to be disposed along the grooves 2 and the chambers 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building board having concave grooves or chamfers on the surface and a method for manufacturing the building board.

[0002]

2. Description of the Related Art Conventionally, this type of building board is formed by laminating and bonding a thin veneer as a surface material on the upper surface of a base material such as plywood, and carving out recessed grooves and chamfers in post processing. I am doing it.

[0003]

However, when the grooves and chamfers are cut out after bonding the thin veneers in this way, the base material such as plywood is exposed on the surface and the coating material is applied to the surface. There is a problem that the color suction is uneven between the part having the groove or chamfer and the other part, and there is a problem that burr or the like is generated in the part where the groove or the chamfer is carved out.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to make it possible to evenly absorb colors when applying a coating, and to prevent burrs from occurring. To provide a building board and a method of manufacturing the building board.

[0005]

In order to achieve the above object, the building board of the present invention is provided with a concave groove 2 and a chamfer 3 on an upper surface of a base material 1, and a thin veneer 4 is laminated on the upper surface of the base material 1. It is characterized in that the thin veneer 4 is closely adhered to the concave groove 2 and the chamfer 3 along the shape thereof. Further, in the method for manufacturing a building board of the present invention, the groove 1 and the chamfer 3 are provided on the upper surface of the base material 1, the adhesive is applied to the upper surface of the base material 1, and the thin material is applied on the base material 1 through the adhesive. The single plates 4 are laminated, sandwiched between the lower heating plate 5 and the upper heating plate 7 having the cushion material 6 mounted on the lower surface, and hot pressed to bond the thin single plates 4 to the upper surface of the base material 1 and thinly. It is characterized in that the veneer 4 is closely adhered to the concave groove 2 and the chamfer 3 along the shape thereof.

It is also preferable that the cushion material 6 mounted on the lower surface of the upper heating plate 7 is made of heat-resistant rubber having a rubber hardness of 5 to 50 °.

[0007]

According to the above construction, the concave groove 2 and the chamfer 3 are formed on the upper surface of the base material 1 and then the thin veneer 4 is laminated and adhered, and the thin veneer 4 has the shape at the position of the concave groove 2 and the chamfer 3. Since the base material 1 is not exposed at the concave groove 2 and the chamfered portion 3 unlike the conventional case, the entire surface becomes a thin veneer 4 and the color is absorbed when the coating is performed. Non-uniformity is eliminated and burr does not occur.

In the manufacturing, the lower heating plate 5 and the upper heating plate 7 having the cushion material 6 mounted on the lower surface are sandwiched and hot pressed to bond the thin veneer 4 to the upper surface of the base material 1 and the thin veneer. Four
The thin veneer 4 can be easily and surely adhered along the groove 2 or the chamfer 3 by closely adhering along the shape even at the position of the groove 2 or the chamfer 3 to facilitate the manufacturing. Become.

[0009]

EXAMPLE A substrate 1 is made of a material such as plywood, and one end of the substrate 1 is provided with a female seed 8 and the other end is provided with a male seed 9.
A concave groove 2 is provided on the upper surface of the base material 1 by cutting, and a chamfer 3 is provided on the upper surface of the base material 1 by cutting. As the concave groove 2, a V groove 2 as shown in FIG.
a, a U groove 2b as shown in FIG. 5B, a square groove 2c as shown in FIG. 5C, an R groove 2d as shown in FIG. 5D, and a modified R groove 2e as shown in FIG. 5E. Etc. The V-shaped groove 2a, the U-shaped groove 2b, the square groove 2c, the R-shaped groove 2d, the modified R-shaped groove 2e and the like have dimensions such that the width is 0.5 to 3.0 mm and the average width is 1.5 m.
m, the depth is 0.2 to 1.5 mm, and the average depth is 0.5 mm. The chamfer 3 is shown in FIG.
There is a V groove chamfer 3a as shown in FIG. 6, an R chamfer 3b as shown in FIG. 6B, a U groove chamfer 3c as shown in FIG. V groove chamfer 3a, R chamfer 3b, U groove chamfer 3c
The chamfer 3 has a width of 0.5 to 3.0 mm and an average width of 1.5 mm, and a depth of 0.2 to 1.5 mm and an average depth of 0.5 mm.

A substrate provided with the groove 2 and the chamfer 3 in this way
Adhesive is applied over the entire surface of 1 to
A thin veneer 4 which is a surface decorative material is laminated on the upper hot plate 7 and
It is sandwiched between the lower heating platen 5 and hot-pressed as shown in FIGS.
A building board as shown is formed. Thickness for thin veneer 4
0.1-0.5 mm, preferably 0.2-0.3 mm
Things are used. As an adhesive applied on the base material 1
For melamine resin, SBR, urethane, etc.
Can be The cushion material 6 is integrally formed on the lower surface of the upper heating plate 7.
It is installed. This cushion material 6 has a thickness of 0.3 to 3
mm, preferably 1.0 mm. This cushion
As the material of the material 6, ethylene-propylene rubber, black
Rosulfonated polyethylene, butyl rubber, chloroprene
It is a heat resistant rubber such as rubber or acrylic rubber. Cushion material
6 has a rubber hardness of 5 to 50 °, preferably 10 to 20 °
is there. The base material 1 and the thin veneer 4 are placed between the upper heating plate 5 and the lower heating plate 7.
When sandwiched and hot pressed, the thin single plate 4 is placed on the upper surface of the substrate 1.
A thin veneer is pressed on the surface of the base material 1 by being pushed through the cushion material 6.
4, the thin veneer 4 follows the groove 2 and the chamfer 3. this
The pressing conditions for hot-pressing are a temperature of 100 to 120 ° C,
Press time is 50 to 120 seconds (average 90 seconds), pressure is 3
~ 15Kg / cm²(Average 8-9 Kg / cm ²)
It

[0011]

As described above, the building board of the present invention is provided with a concave groove or chamfer on the upper surface of the base material, and a thin single plate is laminated and adhered on the upper surface of the base material, and at the position of the concave groove or the chamfer. Since the thin veneer is adhered according to the shape, the whole surface is covered with the thin veneer and the building board (floor,
(Wall boards, ceiling boards, etc.) can be obtained, and even if there are grooves or chamfers, the base material such as plywood is not exposed, and even if it is painted, the color can be absorbed evenly. In addition, concave grooves and chamfers are curved by laminating thin veneers to create a soft design, and burrs of base materials such as plywood do not occur as in the past. It is a thing.

In the invention according to claim 2 of the present invention,
Make a groove or chamfer on the upper surface of the base material, apply an adhesive on the upper surface of the base material and stack a thin veneer on the base material via the adhesive. It is sandwiched between the upper hot platen on which the material is mounted and hot pressed to adhere the thin veneer to the upper surface of the base material and also to adhere the thin veneer along the shape even at the position of the groove or chamfer. Even if a groove or chamfer is formed in advance, a thin veneer can be provided along the base material, and the building board as described above can be easily manufactured.

Further, in the invention according to claim 3 of the present invention, since heat-resistant rubber having a rubber hardness of 5 to 50 ° is used as the cushion material to be mounted on the lower surface of the upper heating plate, the thin single plate is not damaged. The thin veneer can be firmly attached.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a building board of the present invention.

FIG. 2 is an enlarged cross-sectional view of a groove portion of the building board of the above.

FIG. 3 is an enlarged cross-sectional view of a chamfered portion of the above building board.

FIG. 4 is a front view showing the hot platen of the above.

5 (a), (b), (c), (d), and (e) are explanatory views showing the shape of a groove.

6 (a), (b) and (c) are explanatory views showing chamfered shapes.

[Explanation of symbols]

 1 Base Material 2 Recessed Groove 3 Chamfering 4 Thin Single Plate 5 Lower Heating Plate 6 Cushion Material 7 Upper Heating Plate

Continued Front Page (72) Inventor Hiroshi Shibasaki 135 Izunouemachi, Numata City, Gunma Prefecture National Wood Industry Co., Ltd.

Claims (3)

[Claims] 1. A concave groove or chamfer is provided on an upper surface of a base material, and thin veneers are laminated and adhered on the upper surface of the base material, and at the position of the concave groove or chamfer, the thin veneer is formed in accordance with its shape. A building board characterized by being closely attached. 2. An upper surface of a base material is provided with a groove or chamfer, an adhesive agent is applied to the upper surface of the base material, and thin veneers are laminated on the base material via the adhesive agent. And sandwich it with an upper heating plate with a cushioning material attached to the lower surface and heat press it to adhere the thin veneer to the upper surface of the base material and adhere the thin veneer along the shape even at the position of the groove or chamfer A method for manufacturing a building board, comprising: 3. The method for manufacturing a building board according to claim 2, wherein a heat-resistant rubber having a rubber hardness of 5 to 50 is used as a cushion material to be mounted on the lower surface of the upper heating plate.