JPH0710205U - Floor board for direct application - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the overall thickness of the floorboard so that nails can be reliably driven in from the joint during construction, and to prevent the seam from being pushed up due to the expansion and contraction of the floorboard after construction. [Structure] The opposite ends of the back surface of the substrate (1),
Further, the hard material (2a) is adhered across the other sides facing each other, the cushioning material (2b) is adhered to the other part, and the hard material (2a) is formed from the substrate (1) and the hard material (2a). It is characterized in that a step (4) for joining is applied to the end.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a floor plate for direct attachment.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 2, a flooring board for direct bonding, in which a cushioning material 2b is bonded to the back surface of a substrate 1, has a siding board 6 laid on a concrete floor slab or a joist, and the work is performed on it. Therefore, all of them were mainly constructed with only an adhesive.

[0003]

[Issues to be solved by the device]

 If the nail is not used in the above-mentioned floor plate for direct attachment, the thickness of the floor plate is as thin as about 3 to 9 mm and it is difficult for the nail to come out. The feeling and soundproofing performance are degraded, and the space between the substrate 1 and the siding plate 6 must be kept so that the cushioning material 2b is not crushed even during construction, and the nail cannot be completely driven in. This was due to the problem that the nailing part was not stable. Further, when the floorboard is constructed with only the adhesive, there is a problem that the expansion and contraction of the substrate 1 due to the change in temperature and humidity pushes up the joint between the floorboards.

Therefore, in Japanese Utility Model Publication No. 59-3939 and Japanese Utility Model Publication No. 62-194852, floor boards provided with hard materials at opposite end portions of the substrates are proposed, but these are joint steps. Since the part is formed of the board part, the thickness of the board must be made thicker than before in order to maintain the strength of the joining step, and in order to keep the thickness of the entire floor plate constant. However, the thickness of the cushioning material must be reduced to sacrifice walking sensation and soundproofing, and there is also a problem that it is not suitable for reforming such as stacking on a siding board.

[0005]

[Means for Solving the Problems]

 The floorboard for direct attachment of the present invention is made to solve the above-mentioned problems, and a hard material is attached to the opposite ends of the back surface of the substrate and between the opposite sides. It is characterized in that a cushioning material is adhered to the other parts, and an end portion formed of the substrate and the hard material is provided with a joining step.

The present invention will be described below with reference to the drawings.

FIG. 1 is a partial cross-sectional view of a floorboard for direct attachment, 1 is a substrate, 2a is a hard material, 2b is a cushioning material, 3 is a decorative layer, 4 is a joint, 5 is a nail, and 6 is a siding plate. Show.

As the substrate 1, a wood board such as plywood, laminated veneer material, fiber board, wood piece molding board is generally used, and the surface thereof is appropriately decorated. A thickness of about 3 to 7 mm is used. As the decorative layer 3, a natural wood decorative veneer, an artificial decorative veneer, a vinyl chloride resin sheet, a decorative paper, etc. are generally used, and they are attached via a common adhesive. Alternatively, the decorative layer 3 may be formed by directly coating the surface of the substrate 1 without attaching the decorative sheet material.

A hard material 2 a is attached to an end portion of the back surface of the substrate 1. The positions to be adhered may be opposite end portions of the substrate 1 or peripheral edge portions. As the hard material 2a, an unfoamed rubber, a synthetic resin, a plywood, a fiber board, or the like, which has a relatively small dimensional change due to a physical action, is used and fixed by an adhesive. Regarding the dimensions of the hard material 2a, the thickness may be about 2 to 4 mm, and the width and the length may be adapted to the dimensions of the substrate.

A cushioning material 2b is attached to a portion other than the hard material 2a on the back surface of the substrate 1. As the cushioning material 2b, it is possible to use a foamed synthetic resin sheet, a foamed rubber sheet, a fibrous sheet, or any other sheet-like material having a cushioning property and a soundproofing property, which is attached to the back surface of an ordinary direct-adhesion floorboard. The substrate 1 is attached with an adhesive.

A step portion 4 for bonding as shown in FIG. 1 is applied to the peripheral edge portion including the substrate 1 and the back surface materials 2a and 2b. The joining step portion 4 is usually processed into an uneven (commonly known as true) shape, but is not limited to this.

[0012]

[Action]

 In this invention, the step of joining is applied to the end of the floorboard formed of the board and the hard material by making sure that the nail can be driven from the joint at the time of construction even if the floorboard is thin. This is to improve the workability and prevent the seam from being pushed up due to the expansion and contraction of the floorboard after construction.

[0013]

【Example】

 (Example 1) A natural wood decorative veneer having a thickness of 1 mm was attached to the surface of a rectangular plywood having a thickness of 9 mm to form a decorative plywood. Then, a hard urethane rubber having a thickness of 3 mm was fixed to the short end portion of the back surface, and a foamed plastic foam having a thickness of 3 mm was stuck to a portion other than the hard material. Then, the short edge part was cut and formed with a tenor to form the actual fruit for joining on the peripheral edge part including the decorative plywood and hard urethane rubber at the short end and the decorative plywood and foamed plastic foam at the long end part to obtain the directly attached floor plate. .

Then, after applying the adhesive on the concrete floor slab, the directly pasted floor board obtained above was placed, and nails were driven so as to penetrate the hard material from the joint portion, and the construction was carried out sequentially. During the construction, the work of hitting nails was always stable, and even after the construction, the push-up of seams due to the expansion and contraction of the floorboard did not occur.

(Embodiment 2) On the front surface of a rectangular plywood sheet having a thickness of 9 mm, in which grooves having a width of 1 mm and a depth of 4.5 mm are evenly formed in the longitudinal direction along the shorter side, a thickness of 0. A 5 mm vinyl chloride resin sheet was attached to form a decorative plywood. Then, a vinyl chloride resin having a thickness of 2 mm was fixed to the short end portion of the back surface, and a polyester fiber sheet having a thickness of 2 mm was stuck to the portion other than the hard material. Then, the short edges are made of decorative plywood and vinyl chloride resin, and the long ends are made of cutting plywood and polyester fiber sheets. It was

[0016] Then, after applying an adhesive to the base material having the slabs spread over the joists, the directly pasted floor plate obtained above is placed, and nails are driven from the joint to penetrate the hard material. It was constructed in sequence. During the construction, the work of hitting the nails was always stable, and even after the construction, the seams did not rise due to the expansion and contraction of the floorboard.

[0017]

[Effect of device]

 According to this invention, by forming the joining stepped portion at the end portion formed of the substrate and the hard material, the nail can be reliably driven from the joining portion during construction, which improves the workability of the floorboard and also provides cushioning. There is little crushing of the material, it is possible to maintain soundproofing and walking properties for a long time, and it is possible to suppress the occurrence of thrust up of the seam due to expansion and contraction of the floor board after construction.

[0018]

[Brief description of drawings]

FIG. 1 is a sectional view of a joining step portion of a floor plate for direct attachment.

FIG. 2 is a cross-sectional view of a joining step portion of a conventional floorboard for direct attachment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2a Hard material 2b Cushioning material 3 Decorative layer 4 Joined portion 5 Nail 6 Disposal board

Claims (1)

[Scope of utility model registration request] 1. A hard material (2a) extending across opposite sides of a back surface of a substrate (1) and facing each other.
Is affixed, and the cushioning material (2b) is affixed to other parts,
A floor plate for direct attachment, characterized in that an end portion formed of the substrate (1) and the hard material (2a) is provided with a joining step portion (4).