JP2544420Y2 - Floor material - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flooring material, in particular, a wooden flooring material suitable for being directly applied to a concrete floor foundation.

[0002]

2. Description of the Related Art Conventionally, as a wooden flooring material for direct application to concrete, a plurality of sheets in a longitudinal direction and a lateral direction are provided on a surface of a rectangular substrate (plywood, fiberboard, or the like) having a joint formed on a side surface. It is well known that a decorative veneer is spread and attached (FIG. 4).

[0003] In this flooring, the longitudinal joints of decorative veneers are shifted so as not to overlap with each other, and V-shaped grooves are formed in the longitudinal and lateral joints of the decorative veneers. Accordingly, it has been practiced to eliminate unnaturalness of a joint portion and improve designability.

[0004] However, even if such a technique is applied to improve the design of each flooring material, when the flooring materials are joined in the longitudinal direction as shown in FIG. Since the ends are unnaturally formed in a straight line in the lateral direction, the design of the entire floor cannot be improved.

In order to solve such a problem, an elongated decorative plate having a joining means on a side surface and having an appropriate number of surface grooves formed in a short direction thereof is slightly shifted in a longitudinal direction. Are joined in the short direction via the side joining means so as not to be adjacent to each other, and further, a notch is formed on the back surface of each elongated decorative plate in the vicinity of the front groove, and the cushion is formed over the entire back surface. A floor material having a sheet attached thereto has been proposed (Japanese Utility Model Laid-Open No. 61-85608).

[0006] This floor material has a point in that the elongated decorative boards are slightly shifted in the longitudinal direction and joined together, so that the ends in the longitudinal direction become echelon-shaped, and even when the floor materials are joined together, the joints are inconspicuous. It has excellent design.

Further, in this flooring, a concave groove is formed on the surface of the elongated decorative board, and a cut is made from the back surface in the vicinity of the concave groove to impart flexibility to the elongated decorative board. It describes that the conformity to the unevenness of the concrete foundation to be applied becomes good.

[0008]

However, this flooring is, in other words, in such a way that when the elongated decorative boards are joined in the transverse direction, the concave grooves on the surfaces of the adjacent elongated decorative boards are not adjacent to each other. For example, since the slits are located at a certain distance from each other, the notches on the back surface formed near the front concave grooves are also arranged in a state of being separated between the adjacent elongated decorative boards. For this reason, the short-side end of each cut is opposed to a portion of the adjacent elongated decorative plate where no cut is present, and the cut is fixed by joining in such a state. In practice, however, it was difficult to exhibit the intended flexibility.

Furthermore, since the floor material is formed such that the long and thin decorative boards can be joined in the short direction in a flexible manner, they are easily bent at the short direction joints.
For this reason, not only is it difficult to handle, but the actual fitting of the joint is disengaged due to the bending force, and it has been difficult to fit it back as before.

[0010]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the prior art, and provides a flooring material which has excellent designability and good flexibility in a construction state and has excellent adaptability to a ground surface. The purpose is to provide.

That is, the flooring material according to the present invention is attached to a surface of a board having a predetermined echelon shape in a state where a plurality of elongated decorative boards are combined in the short direction while being slightly shifted in the longitudinal direction, A cushioning base material is adhered to the back surface of the substrate, and the back surface of the plurality of elongated decorative boards in the combined state is continuous with the back surface over the entire transverse direction. A plurality of transverse grooves are formed at appropriate intervals,
Further, a plurality of second transverse grooves which are continuous over the entire lateral direction and extend over two layers of the cushioning base material and the substrate are formed at appropriate intervals.

The second transverse groove may penetrate in the thickness direction of the cushioning base material and the substrate, or may have a depth penetrating the cushioning base material and reaching the middle of the substrate.

[0013] Preferably, the first transverse groove and the second transverse groove are formed at positions where they do not overlap with each other.

[0014]

1 and 2 show the structure of a flooring according to an embodiment of the present invention.
A plurality of elongated decorative boards 1 are attached to each other in the transverse direction while being slightly shifted in the longitudinal direction (as a wild goose-shaped wide decorative board 1 ′), and a cushion is provided on the back surface of the substrate 2. The base material 3 is adhered.

Each of the elongated decorative boards 1 is constituted, for example, as shown in the figure by forming a decorative layer 5 on the surface of an elongated base material 4. As the elongated base material 4, any wood material such as plywood, wood chipboard, wood fiber board, LVL (parallel plywood) or the like can be used alone or as a laminate obtained by appropriately combining them. In the case of a laminate, a foamed synthetic resin sheet having an excellent buffer effect can be interposed between laminated materials, for example, plywood.

The decorative layer 5 is made of, for example, a natural veneer or an artificial veneer having a thickness of about 0.2 to 3 mm obtained by cutting natural wood.
The veneer sheet is made of a veneer sheet in which a backing material such as a nonwoven fabric, paper, or a synthetic resin sheet is lined with a veneer sheet, or a decorative sheet such as a decorative paper or a nonwoven fabric. These sheets are adhered to the surface of the elongated substrate 4 using a thermoplastic adhesive, for example, a vinyl acetate resin adhesive mixed with a thermosetting resin or urea powder for improving water resistance. By wearing, the decorative layer 5 can be formed. Alternatively, the decorative layer 5 may be formed by directly painting or printing the surface of the elongated base material 4.

An overcoat layer can be further provided on the surface of the decorative layer 5.

On the surface of each elongated decorative plate 1, a V-groove 6 extending in the lateral direction thereof can be formed as needed in response to switching of the decorative layer. This V
The formation of the groove 6 can improve the design and improve the flexibility of the elongated decorative plate 1 in the longitudinal direction.

As the substrate 2, for example, plywood, wood chipboard, wood fiber board, LVL, wood veneer or the like is used.

As the cushioning base material 3, synthetic resin,
Sheets such as natural rubber, synthetic rubber, their foams, and nonwoven fabrics are used.

In the present invention, a plurality of first decorative boards 1 'extending in the short direction are provided on the back surface of the echelon-shaped wide decorative board 1' in which a plurality of elongated decorative boards 1 are combined in the short direction. (FIG. 3).

Further, a second transverse groove 10 which is continuous over the entire width direction of the floor material and extends over two layers of the cushioning base material 3 and the substrate 2 is formed (FIG. 4). In the illustrated example, the second transverse groove 10 is formed to have a depth extending from the back surface of the cushioning base material 3 to the middle of the substrate 2 through the thickness direction thereof.

The intervals between these transverse grooves 7, 10 can be set arbitrarily. By changing this interval, the flexibility in the longitudinal direction of the flooring material can be adjusted, and by setting this interval irregularly, excellent soundproofing performance that does not resonate even in a wide frequency range. Can be given. Further, the same adjustment can be performed by changing the depth of these transverse grooves 7 and 10 (the depth of entry into the elongated decorative plate 1 and the substrate 2).

A male nut 8 for joining is formed at one end of the floor material in the longitudinal and lateral directions, and a female nut 9 for fitting the same is formed at the other end. Can be joined in the longitudinal and transverse directions. In the illustrated example, these male nuts 8 and female nuts 9 are formed on the elongated decorative plate 1, but they may be formed on the substrate 2.

In order to obtain a flooring material having such a structure,
First, a wild goose-shaped wide decorative board 1 'having a plurality of first transverse grooves 7 is prepared.

For example, the elongated decorative board 1 is joined in the short direction while being slightly displaced in the longitudinal direction to form a wild goose-shaped wide decorative board 1 ', and then extended in the short direction on the back side using a circular saw or the like. A first transverse groove 7 can be formed.

Bonding of the elongated decorative board 1 in the lateral direction may be performed, for example, by bonding with an elastic adhesive having elasticity even after being fixed or cured by an adhesive, or by bonding a real or the like formed on the side surface of each elongated decorative board 1. It is performed by any method such as fitting of the joints, fixing with staples, or the like. Further, in the present invention, a plurality of first transverse grooves 7 continuous in the lateral direction are formed on the back surface of the echelon-shaped wide decorative board 1 ′.
By embedding and bonding a wire material such as a metal or a fiber coated with an adhesive in the transverse groove 7, the elongated decorative boards 1 can be joined in the transverse direction. Further, if necessary, a plurality of joining means can be used in combination.

After obtaining the wild goose-shaped wide decorative board 1 'in which the plurality of first transverse grooves 7 are formed in this manner, the substrate 2 and the cushioning base material 3 are adhered to the back surface thereof, and the cushioning property is further improved. Using a circular saw or the like, a second transverse groove 10 continuous from the back side of the base material 3 over the entire width direction of the floor material and extending over the two layers of the cushioning base material 3 and the substrate 2 is formed. By forming, the floorboard of the above configuration is obtained. An arbitrary adhesive is used for sticking.

Further, in each of the elongated decorative boards 1, a groove 7 ′ is previously formed at a predetermined position, and prepared in a short direction to form a wild goose-shaped wide decorative board 1 ′. The concave grooves 7 ′ in the elongated decorative plate 1 may be continuously formed as the first transverse grooves 7.

For example, as shown in FIG. 5, an elongated decorative plate 1 in which concave grooves 7 'are previously formed at equal intervals a on the back surface is used.
When these are joined in the transverse direction to form a wild goose, as shown in FIG. 4, each groove 7 'is shifted in the longitudinal direction by a dimension b which is an integral multiple of the interval a of the grooves 7'. Continuous throughout the short direction. In this manner, the first transverse groove 7 that extends continuously in the short direction of the goose-shaped wide decorative board can be obtained. In the illustrated example, a = b.

Alternatively, as shown in FIGS. 6 and 7, when, for example, four elongated decorative boards 1 are joined to form a wild goose-shaped wide decorative board 1 ', they are shifted by a predetermined dimension in the longitudinal direction and in the short direction. Four kinds of elongated decorative boards 1a to 1d having different back positions are prepared so that the concave grooves 7 'in each elongated decorative board 1 are continuous when they are joined, as shown in FIG. By combining, the first transverse groove 7 can be formed by connecting the concave grooves 7 ′ in the lateral direction.

Alternatively, two types of elongated decorative boards 1e and 1f as shown in FIG. 8 are prepared, and these are alternately arranged and connected as shown in FIG. The first transverse groove 7 can be continuous in the short direction.

In the case of using the elongated decorative board 1 in which the concave groove 7 'is formed at a predetermined position in advance as in these examples, the decorative board 1 is used to connect the elongate decorative board 1 using the short direction joining means as described above. After forming the plate 1 ′, the substrate 2 and the cushioning base material 3 are adhered to the back surface, and the cushioning base material and the substrate 2 are removed from the back surface side of the cushioning base material 3 using a circular saw or the like. By forming the second transverse groove 10 extending through the layer, the flooring material having the above-described structure is obtained.

Alternatively, using the cushioning base material 3 and the substrate 2 on which the second transverse groove 10 is not formed,
The elongated decorative plate 1 in which the concave groove 7 ′ is formed at a predetermined position as described above is arranged so as to have the same shape as the echelon shape of the substrate 2, and is adhered and fixed to the substrate 2 on the back surface.
From the back side of the cushioning base material 3, use a circular saw or the like to
The floor material having the above configuration can be obtained also by forming the transverse groove 10. In this case, there is no particular need to join and fix the elongated decorative boards 1 in the lateral direction in advance.

[0035]

The flooring according to the present invention has a plurality of first transverse grooves extending continuously over the entire width direction of the back surface of the elongated veneer combined in the shape of a goose. And a plurality of second transverse grooves extending in two layers of the cushioning base material and the substrate are formed over the entire transverse direction, so that they are excellent in longitudinal flexibility and are adhered to the back surface. Combined with the cushioning effect of the cushioning base material, it is possible to well absorb irregularities on the construction base surface.

The elasticity of the elongated decorative board in the lateral direction is relatively small because it is constrained by the echelon-shaped substrate attached to the back surface, and does not impair workability.

Since the elongated decorative boards are joined in a goose-like shape in the short direction, even when floor materials are connected to each other, the joints are inconspicuous and excellent in design.

[Brief description of the drawings]

FIG. 1 is a plan view of a flooring according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line XX in FIG.

FIG. 3 is a bottom view of a wild goose-shaped wide decorative board in the flooring material of FIG. 1;

FIG. 4 is a bottom view of the flooring of FIG. 1;

FIG. 5 is a bottom view of an elongated decorative panel forming the echelon-shaped wide decorative panel of FIG. 3;

FIG. 6 is a bottom view of each elongated decorative board used in flooring according to another embodiment of the present invention.

FIG. 7 is a bottom view of a wild goose-shaped wide decorative board obtained by joining the elongated decorative boards of FIG. 6;

FIG. 8 is a bottom view of each elongated decorative board used in flooring according to still another embodiment of the present invention.

FIG. 9 is a bottom view of a wild goose-shaped wide decorative board obtained by joining the elongated decorative boards of FIG. 8;

FIG. 10 is a plan view of a conventional floor material.

FIG. 11 is a plan view of the conventional flooring of FIG. 10 in a joined state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elongated decorative board 1 'Geese-shaped wide decorative board 2 Substrate 3 Cushioning base material 4 Elongated base material 5 Decorative layer 6 V groove 7 First transverse groove 7' concave groove 8 Male 9 Female female 10 Second Transverse groove

Claims (4)

(57) [Scope of request for utility model registration] 1. A plurality of elongated decorative plates are attached to a surface of a substrate having a predetermined echelon shape in a state of being combined in a short direction while being slightly shifted in a longitudinal direction, and a cushion is provided on a back surface of the substrate. A plurality of elongated veneers in the combined state are provided with a first transverse groove continuous over the entire width direction at appropriate intervals. And a plurality of second transverse grooves which are continuous over the entire transverse direction and extend over two layers of the cushioning base material and the substrate are formed at appropriate intervals. Characteristic flooring. 2. The flooring material according to claim 1, wherein said second transverse groove has a depth penetrating in the thickness direction of said cushioning base material and reaching halfway of said substrate. 3. The flooring according to claim 1, wherein the second transverse groove is formed so as to penetrate in a thickness direction of the cushioning base material and the substrate. 4. The flooring material according to claim 1, wherein said first transverse groove and said second transverse groove are formed at positions that do not overlap with each other.