JPH084263A - Floor board for direct sticking - Google Patents

Abstract

PURPOSE:To prevent the occurrence of corrugation by heating and sticking a sheet material onto the reverse surface of a woody base plate having a plurality of substantially parallel grooves on the reverse surface through a thermally shrinkable sheet. CONSTITUTION:When a decorative sheet 1 is stuck to the surface of a woody base plate 13, and a plurality of grooves 12 are formed in the longitudinal direction of the bottom surface of the woody base plate 13, the woody base 13 is warped downward in an arch. A thermally shrinkable sheet 14 is stuck to the bottom surface of the woody base plate 13, and a sheet material 15 is stuck to the lower surface of the thermally shrinkable sheet 14 to form a direct sticking floor board 10. When this direct sticking floor board 10 is hot- pressed, the thermally shrinkable sheet 14 is shrunk to pull the woody base plate 13, and the whole direct sticking floor board 10 is warped upward in an arch. When this floor board 10 is put on a floor bed, it flexibly fits the bed by the dead weight. Thus, the occurrence of a thrust between the floor boards can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direct-adhesive floor board used in a detached house, an apartment house, or the like.

[0002]

2. Description of the Related Art In a conventional floor board 70 for direct attachment, as shown in FIG. 3, a thin wooden substrate 71 at the center causes a warp due to absorption or release of water. Backing material 73 equivalent to the veneer 72 on the lower surface
Was attached to keep the balance.

[0003]

However, although this direct-adhesion floorboard 70 was able to prevent warpage, it partially adheres to the wooden board 71 as indicated by the chain double-dashed line in FIG. 3 due to uneven clamping. Rippling was occurring. Therefore, there is a problem in that the floor surface cannot be finished smoothly during the construction, and the floor boards are pushed up even after the construction. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a floor plate for direct attachment in which waviness or the like does not occur on a wooden substrate.

[0004]

A method according to the above-mentioned object.
The above described direct-adhesion floorboard is configured by heating and adhering a sheet material via a heat-shrinkable sheet to the back surface of a wooden substrate having a plurality of substantially parallel grooves formed on the back surface.

[0005]

In the floor board for direct attachment according to claim 1, since a plurality of substantially parallel grooves are formed on the back surface of the wooden board,
The wooden substrate has flexibility. Then, when the sheet material is heated and adhered to the back surface of the wooden board via the heat-shrinkable sheet, the heat-shrinkable sheet shrinks by heating, and the wood board is pulled, and the entire floorboard for direct attachment is stretched. Bows like a bow.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a schematic explanatory view of a manufacturing process of a floor plate for direct bonding according to an embodiment of the present invention, and FIG. 2 is a front view showing a state in which the floor plate for direct bonding is placed on a floor base.

A floorboard 10 for direct attachment according to an embodiment of the present invention shown in FIG. 1C is a wooden substrate having a decorative sheet 11 attached to its front surface and a plurality of substantially parallel grooves 12 formed on its back surface. Sheet material 1 on the back surface of 13 with heat-shrinkable sheet 14 interposed
5 is heated and pasted. The decorative sheet 11 is made of a veneer, a synthetic resin sheet, decorative paper, or the like. The wooden board 13 is made of plywood, particle board, fiber board, or the like, and has a pitch of about 25 to 50 mm in the front-rear direction, a width of about 1 mm, and a depth of about 13 mm so that the bottom surface has flexibility. A plurality of parallel grooves 12 each having a thickness of about 1/2 to 1/3 of the thickness are formed. The heat shrinkable sheet 14
Is made of polyester, polystyrene, polypropylene, vinylidene chloride, cross-linked polyethylene, etc., and has a thickness of about 0.25 to 1.0 mm. The heat-shrinkable sheet 14 has a heat shrinkage in the range of 10 to 80%. When the heat shrinkage is 10% or less, it is not enough to cause the wood substrate 13 to warp, and when the heat shrinkage is 80% or more, the wood substrate 13 is excessively warped. The sheet material 15 is made of vinyl chloride resin, rubber, foamed plastic foam, non-woven fabric, or the like.

Next, a method of manufacturing the floorboard 10 for direct attachment will be described. First, as shown in FIG. 1A, the decorative sheet 11 is attached to the surface of the wooden substrate 13. Then, a plurality of parallel grooves 12 having a pitch of about 25 to 50 mm, a width of about 1 mm, and a depth of about ½ to ⅓ of the thickness of the wooden board 13 are formed in the front-back direction of the bottom surface of the wooden board 13. . In this case, the wooden substrate 13 warps downward in a bow shape. And
As shown in FIG. 1 (B), a heat-shrinkable sheet 14 is attached to the bottom surface of the wooden substrate 13, and a sheet material 15 is further attached to the lower surface of the heat-shrinkable sheet 14 to form the floorboard 10 for direct attachment. Form. Then, the floor plate 10 for direct attachment is placed at 100 to 180 ° C.
A hot press is applied for 20 to 40 minutes at a temperature of about 0.5 to 1.0 kg / cm ² . Then, when the direct-adhesion floorboard 10 is taken out from the hot press after a predetermined time, the heat-shrinkable sheet 14 contracts and the wood substrate 13 is pulled as shown in FIG.
The whole bows upward in a bow. When the floorboard 10 for direct attachment manufactured in this manner is used, if the floorboard 10 for direct attachment is placed on the floor base 16 as shown in FIG. 2, the floorboard 16 is softened by its own weight. The floorboards do not have to be pushed up to each other like before.

In this embodiment, the hot press was used, but after the heat shrinkable sheet and the sheet material are stuck to the wooden board by the cold press, heat is applied by the dryer etc. to warp the floor board for direct sticking. May be generated. Further, in the present embodiment, one sheet material is provided, but it is also possible to impart soundproofing performance by laminating a plurality of different sheet materials and adhering them.

[0010]

According to the floor plate for direct attachment of claim 1, a sheet material is heated and attached via a heat-shrinkable sheet to the back surface of a wooden substrate having a plurality of substantially parallel grooves formed on the back surface. As a result, a floorboard that is entirely curved upward in a bow is obtained.
Therefore, at the time of construction, the floorboard for direct attachment becomes familiar with the floor base,
Pushing up between floor boards does not occur.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a manufacturing process of a floor plate for direct attachment according to an embodiment of the present invention.

FIG. 2 is a front view showing a state in which a floor plate for direct attachment is placed on a floor base.

FIG. 3 is a front view of a floor plate for direct attachment according to a conventional example.

[Explanation of symbols]

 10 Directly Attached Floor Board 11 Decorative Sheet 12 Groove 13 Wood Substrate 14 Heat Shrinkable Sheet 15 Sheet Material 16 Floor Substrate

Claims (1)

[Claims] 1. A floorboard for direct attachment, characterized in that a sheet material is heated and attached via a heat-shrinkable sheet to the back surface of a wooden substrate having a plurality of substantially parallel grooves formed on the back surface.