JPH0631031Y2 - Directly attached floor material - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to a wood flooring material directly attached to an apartment house or the like.

(Prior art) For the floors of apartment buildings such as building construction, the direct-adhesion method of directly attaching the floor material to the concrete slab surface is widely used. Fibers and synthetic resins are being changed to wood such as veneer.

Since this wooden floor material is directly applied to a concrete slab, a groove (B) is formed on the back surface of the plywood (A) (see FIG. 2) or a thin plywood (C) so that the waist does not have strength. )) (See FIG. 3).

(Problems to be solved by the invention) However, as a means for forming a groove, by providing a groove, the balance of the plywood is lost, warpage occurs, coating unevenness can occur on the coating film surface, and thin plywood is used. As a means, actual processing cannot be performed reliably, and a method of using an adhesive and a nail together must be adopted for construction, and the work is complicated.

[Constitution of device]

(Means for Solving Problems) Therefore, the present invention was devised to eliminate the above-mentioned drawbacks. Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the direct-adhesive flooring (1) composed of the same, the front veneer (2) such as a decorative veneer and the back veneer (4) have the same fiber direction, and are the same in order to prevent warpage due to imbalance. Veneer of the same species and thickness, with 3 cores in between (3)
Are aligned and bonded in the orthogonal direction to them. Further, it is composed of a foam slab (5) attached to the back surface so as to conform to the concrete slab.

[Effect of device]

In this invention, the fiber direction of the wood that supports the direction of bending strength is only two layers, the front and back, and the core part inside has virtually no strength, so the waist is a soft material as a whole and it has a certain thickness. However, because the floor board is so flexible that the waist does not hinder practical use, and the actual processing is sufficient,
In addition, since there is no groove, it does not disturb the balance of the plywood, so there is almost no warpage, so construction can be done easily, and even if there is some unevenness on the concrete slab surface, it can be bonded. The floor surface is finished to be flat and has an extremely beneficial effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG.
FIG. 3 is a side view showing a conventional example, and FIG. 1 ... Directly attached floor material, 2 ... Front veneer, 3 ... Core veneer, 4 ... Back veneer, 5 ... Foam sheet, A ... Plywood,
B: groove, C: thin plywood,

Claims (2)

[Scope of utility model registration request] 1. In a direct-adhesive flooring (1) constructed by laminating veneers, fibers of a front veneer (2) and a back veneer (4) and core veneers (3) excluding them. A direct-adhesive flooring material characterized in that the directions thereof are substantially orthogonal to each other, the core is composed of three or more single plates, and the foam sheet (5) is attached to the back surface. 2. A direct-adhesive flooring material according to claim 1, characterized in that the front surface veneer (2) and the back surface veneer (4) have the same material type and the same thickness.