JPH0860845A - Floor plate - Google Patents

Abstract

PURPOSE: To make a floor plate fit to the substrate material, by forming a recessed groove parallel to the longer side of the floor plate in which a decorative material is stuck on a base board and providing a plurality of cut grooves on the rear face of the floor plate so as to cross at right angles against the recessed groove to reduce the rigidity. CONSTITUTION: A recessed groove 2a cut from the surface of a decorative material 2 to the base board 1 parallelly to the longer side is formed on a floor plate 3 in which the decorative material 2 is stuck on the surface of base board 1 made of laminated plates. A plurality of cut grooves 1a are provided in the right-angled direction of the recessed groove 2a, on the rear face of the floor plate 3. The cut grooves 1a are formed deep in such an extent that the base board 1 is left as much as 3-6mm at the crossing part against the recessed groove 2a and cut by 1-3mm in the groove width and three times of the thickness of floor plate or less in the interval to reduce the rigidity while keeping the strength as the floor plate. In this way, fitness with the substrate material is improved and uneven surface can be absorbed.

Description

Detailed Description of the Invention

[0001]

[Field of application] The present invention relates to a floor board which is well adapted to a floor substrate, absorbs unevenly, and is carried and prevented from being damaged during construction.

[0002]

2. Description of the Related Art Conventionally, it has been proposed to provide a pseudo joint groove on the front surface of a floor plate and to form a cut groove on the back surface in a direction parallel to the groove. As described above, by forming the kerf, the rigidity of the floor plate itself becomes low, and the conformability to the floor base is good, and the uneven absorption can be performed. The strength of the floorboard itself becomes weak in the portion where the half surface, the concave groove, and the kerf are formed, and the floorboard is easily damaged by being bent or divided during construction.

In order to eliminate the above-mentioned problems, it has been proposed to provide an area on the back surface corresponding to the concave groove on the front surface with an arbitrary interval where no kerf is formed. However, in the area where the kerf is not formed, the floor plate itself. Since it has a high rigidity, it has a portion that is not well-fitted to the floor base and cannot be absorbed by the non-landing material, which reduces the workability.

[0004]

[Means for Solving the Problems] A decorative material 2 is formed on the surface of a substrate 1.
In the floor plate 3 to which is adhered, a groove 2a reaching the base material 1 from the surface of the decorative material 2 is formed in a direction parallel to the long side of the floor plate 3, and a groove 2a is formed on the back surface of the floor plate 3. A floor board provided with a plurality of kerfs 1a in the direction orthogonal to the recessed grooves 2a on the back surface thereof.

[0005]

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

An adhesive is applied to the surface of the substrate 1 by using a coating device. Adhesives are vinyl acetate resin, urea resin,
Melamine resin type, epoxy resin type, phenol resin type,
Acrylic resin-based, urethane resin-based, isocyanate-based, etc. adhesives are used alone or as a mixed adhesive which is optionally mixed.

If necessary, an inorganic powder such as talc, calcium carbonate, clay or titanium white, wheat flour, wood powder, plastic powder, a coloring agent, an insect repellent, a fungicide or the like is added to the adhesive and mixed. Can be used.

The decorative material 2 is placed on the surface of the substrate 1 coated with the adhesive. As the decorative material 2, a decorative veneer, artificial veneer, decorative paper, decorative resin-impregnated paper, decorative synthetic resin sheet, or the like is used. Further, for the decorative veneer and the artificial veneer, a backing material may be attached, surface coloring, and a surface protective layer may be formed, if necessary. As the backing material, Japanese paper, foreign paper, synthetic paper, non-woven fabric, woven cloth, trousers cloth, impregnated paper, synthetic resin sheet or the like is used.

The substrate 1 on which the decorative material 2 is placed is pressed by a pressing device to bond the decorative material 2. A concave groove 1a reaching the substrate 1 from the surface of the decorative material 2 is formed in the substrate 1 to which the decorative material 2 is attached in a direction parallel to the long side of the substrate 1. The concave groove 2a is provided in a sectional shape of the shape shown in FIG. 2 or in a V shape, a U shape, and a bowl shape, and the opening width is 1 to 4 mm and the depth is 0.5.
About 1 to 2 mm, moreover, one or a plurality of them are formed in the width direction of the substrate 1, and they are formed over the entire length in the longitudinal direction of the substrate.

Further, the longitudinal wood mouth of the floorboard 3 is provided with a chamfering 4 for forming a half-width surface of a V-shaped, U-shaped or bowl-shaped groove as shown in FIG. Make the section inconspicuous. FIG. 3 shows a case where the opening of the decorative plate 2 is chamfered. Male and female berries are formed at the four-sided mouth of the substrate 1 to which the decorative material 2 is adhered by the actual processing for fitting the floor boards together.

The surface of the decorative material 2 adhered to the substrate 1 and the inside of the groove 2a are colored and surface-protected to form a surface-colored and surface-protected layer. On the back surface of the substrate 1, a concave groove 2a on the front surface
A plurality of kerfs 1a are formed in a direction orthogonal to. The cut groove 1a is formed on the substrate 1 at the intersection of the concave groove 2a and the cut groove 1a.
Is formed so as to remain with a thickness of 3 to 6 mm. If it is 3 mm or less, the rigidity of the portion is low and the strength becomes too weak, and the kerf 1a portion is apt to be bent or broken during carrying and construction, and is easily damaged. It has high rigidity and high strength so that it will not be damaged.

The cut groove 1a is formed with a width of 1 to 3 mm. 1
If it is less than or equal to mm, the warp whose surface material side is convex collides with the tips of the substrate portions on both sides of the kerf. Also 3 mm
If the above is the case, the opening is too wide, and the surface warps with convex or concave peaks or valleys.
Uneven coating (zebra pattern) due to the appearance of the kerf 1a, or when the surface is colored or surface-painted, because the plate will dance in the kerf 1a. It does not become a product.

The kerf 1a is formed with an interval of not more than 3 times the thickness of the floor board. If it is 3 times or more, the rigidity of the floorboard 3 itself cannot be reduced, and the unsettled floor base cannot be absorbed. A single plate, thin paper, synthetic resin-impregnated paper, synthetic resin sheet, or the like may be attached to the back surface of the substrate 1 as a back material.

It is preferable to use the same kind of backing material and the same thickness as the backing material 2. After the backing material is attached, the cut groove 1a is formed on the back surface. In this way, the decorative material 2 is adhered to the surface of the substrate 1 to form the concave groove 2a reaching the substrate 1 from the surface of the decorative material in the direction parallel to the long side, and the rear surface thereof is formed in the direction orthogonal to the concave groove 2a. A floor plate 3 having a plurality of cut grooves 1a was obtained.

[0015]

EFFECTS OF THE INVENTION A groove 2a is provided in the longitudinal direction of the surface, and a plurality of cut grooves 1a are provided in the surface in a direction orthogonal to the groove 2a. In addition, the substrate 1 is 3 to 6 mm at the intersection of the groove 2a and the cut groove 1a.
Since the recessed groove 2a and the cut groove 1a having the remaining depth are formed,
The rigidity of the floorboard 3 itself can be kept low while maintaining the strength as the floorboard 3, and it is well-suited to the floor base and can absorb unevenly, and it may be damaged during carrying, bending, dividing during construction, etc. Absent.

[Brief description of drawings]

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

FIG. 2 shows an example of a sectional shape of a groove.

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

[Explanation of symbols]

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

Claims (4)

[Claims] 1. A floorboard (3) having a decorative material (2) attached to the surface of a substrate (1), a groove (2a) extending from the surface of the decorative material (2) to the substrate (1) in a direction parallel to the long side of the floorboard (3) is formed. A floor board, characterized in that a plurality of kerfs 1a are provided on the back surface of the slab in a direction orthogonal to the recessed grooves 2a. 2. The floor board according to claim 1, wherein a groove and a groove having a depth such that the substrate 1 remains at 3 to 6 mm are formed at an intersection of the groove 2 and the groove 1a. 3. The floor board according to claim 1, wherein the cut groove 1a is formed to have a width of 1 to 3 mm. 4. The floor board according to any one of claims 1 to 3, wherein the intervals between the cut grooves 1a are formed to be 3 times or less the thickness of the floor board.