JP3030680B2 - Floorboard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel which is well adapted to a floor substrate, absorbs irregularities, is carried, and is prevented from being damaged during construction.

[0002]

2. Description of the Related Art Heretofore, there has been proposed a structure in which a pseudo joint groove is provided on the surface of a floor plate and a cut groove is formed on the back surface in a direction parallel to the groove. Thus, by forming the kerfs, the rigidity of the floorboard itself is low, and the floorboard is well adapted to the groundwork and can absorb irregularities. On the other hand, the strength of the floor plate itself is low at the portion where the concave groove and the kerf are formed, and the floor plate itself is easily damaged by being carried, bent or broken during construction.

In order to eliminate the above-mentioned problems, it has been proposed to provide an area in which no kerf is formed at an arbitrary interval on the back surface corresponding to the concave groove on the front surface. Since it has high rigidity, it has poor adaptability to the floor substrate and has a portion that cannot be absorbed in unevenness, resulting in poor workability.

[0004]

A decorative material 2 is provided on the surface of a substrate 1.
Is formed in the floorboard 3 on which the groove 2a reaching the substrate 1 from the surface of the decorative material 2 is formed only in a direction parallel to the long side of the floorboard 3, and on the back surface of the floorboard 3 only in a direction orthogonal to the groove 2a. A floor plate provided with a plurality of kerfs 1a.

[0005]

[Description of Configuration] A decorative material 2 is adhered to the surface of a substrate 1.
As the substrate 1, a plywood, a medium specific gravity or hard fiber board, a particle board, a wafer board, a flake board, a stick board, a veneer laminated material, a laminated material, or the like is used as a single substrate or a laminated substrate obtained by arbitrarily laminating them. In addition, a synthetic resin sheet, a synthetic rubber sheet or a foamed sheet for impact absorption, vibration damping, sound insulation or the like, which is adhered to the surface layer portion, the intermediate portion, and the back surface portion alone or in any combination, is used. Used.

An adhesive is applied to the surface of the substrate 1 using an application device. Adhesives are vinyl acetate resin, urea resin,
Melamine resin, epoxy resin, phenol resin,
An adhesive of an acrylic resin type, a urethane resin type, an isocyanate type, or the like is used alone or as a mixed adhesive obtained by arbitrary mixing.

[0007] If necessary, an inorganic powder such as talc, charcoal, clay, titanium white, etc., wheat flour, wood flour, plastic powder, a coloring agent, an insect repellent, a fungicide, etc. may be added to the adhesive. Can be used.

The decorative material 2 is placed on the surface of the substrate 1 on which the adhesive has been applied. As the decorative material 2, a decorative veneer, an artificial veneer, a decorative paper, a decorative resin-impregnated paper, a decorative synthetic resin sheet, or the like is used. In addition, for a veneer veneer or an artificial veneer, a backing material may be attached, a surface may be colored, and a surface protective layer may be formed as necessary. As the backing material, Japanese paper, Western paper, synthetic paper, nonwoven fabric, woven fabric, cold gauze, impregnated paper, synthetic resin sheet, and the like are used.

The substrate 1 on which the decorative material 2 is mounted is pressed by a pressing device to bond the decorative material 2. On the substrate 1 to which the decorative material 2 is adhered, a concave groove 2a reaching the substrate 1 from the surface of the decorative material 2 is formed only in a direction parallel to the long side of the substrate 1. Groove 2
a is a sectional shape shown in FIG.
And an opening width of about 1 to 4 mm, a depth of about 0.5 to 2 mm, and one or more pieces are formed in the width direction of the substrate. It is formed.

Further, a chamfer 4 for forming a half-width surface of the groove shown in FIG. 3 or a V-shaped, U-shaped or bowl-shaped concave groove is applied to the longitudinal opening of the floor panel 3 to form a butt portion at the time of floor panel construction. To make it less noticeable. FIG. 3 shows a case in which the edge of the tip of the decorative material 2 is chamfered. At the four corners of the substrate 1 on which the decorative material 2 is stuck, male and female fruits are formed by actual processing in which floor boards are fitted.

The surface of the decorative material 2 adhered to the substrate 1 and the inside of the concave groove 2a are colored and surface-protected, and the surface is colored and a surface protective layer is formed. A groove 2a on the front surface of the substrate 1
Are formed only in a direction perpendicular to the direction.
The cut groove 1a is formed such that the substrate 1 remains at a thickness of 3 to 6 mm at the intersection of the concave groove 2a and the cut groove 1a. 3mm
If it is less than that, the rigidity of the portion is low, the strength becomes too weak, and the portion of the kerf 1a is easily damaged such as being bent or divided at the time of carrying work, and if it is 6 mm or more, the rigidity of the portion is opposite to the previous one. On the other hand, the strength is high and the strength is not strongly damaged.

The width of the cut groove 1a is formed in the range of 1 to 3 mm. 1
If it is less than mm, a mountain warp with the surface material side protruding will hit the ends of the substrate portions on both sides of the kerf. Also 3mm
If it is above, the opening is too wide, and the surface material side is convex or concave.
When the kerf 1a appears, or when the surface is painted or protected, a plate dance occurs at the kerf 1a, so that the coating film thickness is formed to be thick, resulting in a non-uniform coating film (zebra pattern). It is not a product.

The interval between the cut grooves 1a is formed to be three times or less the thickness of the floor plate. If it is three times or more, the rigidity of the floorboard 3 itself cannot be reduced, and the floor substrate cannot absorb unevenness. A veneer, a thin paper, a synthetic resin impregnated paper, a synthetic resin sheet, or the like may be adhered to the back surface of the substrate 1 as a back material.

It is preferable to use the same material and the same thickness as the decorative material 2 as the back material, and a cut groove 1a is formed on the back surface after attaching the back material. In this manner, the decorative material 2 is stuck on the surface of the substrate 1 to form a concave groove 2a extending from the surface of the decorative material to the substrate 1 in a direction parallel to the long side, and the back surface thereof is formed in a direction orthogonal to the concave groove 2a. A floor plate 3 provided with a plurality of kerfs 1a was obtained.

[0015]

According to the present invention, a plurality of grooves 2a are formed in the longitudinal direction of the front surface and a plurality of cut grooves 1a are formed in the rear surface in a direction perpendicular to the groove 2a. The substrate 1 is 3 to 6 mm at the intersection of the concave groove 2a and the cut groove 1a.
Since the concave groove 2a and the kerf 1a having the remaining depth are formed,
The rigidity of the floorboard 3 itself can be made low while maintaining the strength as the floorboard 3, and the floorboard 3 can be easily conformed to the floor substrate and can absorb non-land, and can be damaged by being carried, bent or broken at the time of construction. Absent.

[Brief description of the drawings]

FIG. 1 is a perspective view of a floor panel of the present invention,

FIG. 2 shows an example of a cross-sectional shape of a concave groove.

FIG. 3 shows an example of a cross-sectional shape of a chamfer.

[Explanation of symbols]

1: substrate, 1a: cut groove, 2: decorative material, 2a: concave groove, 3:
Floorboard 4: Chamfer.

Claims (3)

(57) [Claims] 1. A floor plate 3 having a decorative material 2 attached to the surface of a substrate 1 only in a direction parallel to the long side of the floor plate 3.
A groove 2a reaching the substrate 1 from the surface of the floor plate 3 is formed.
A plurality of cut grooves 1 only in the direction orthogonal to the concave groove 2a
a floor plate, wherein a is formed. 2. The floor plate according to claim 1, wherein a concave groove and a cut groove are formed at a crossing point of the concave groove 2a and the cut groove 1a so that the substrate 1 has a depth of 3 to 6 mm. 3. The floor panel according to claim 1, wherein the interval between the cut grooves 1a is formed to be three times or less the thickness of the floor panel.