JP3081829B2 - 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 floorboard used for flooring of houses and stores, and more particularly, to a floorboard using a wood-based substrate obtained by bonding a laminated wood and a plywood.

[0002]

2. Description of the Related Art A floor board used for flooring of a house or a store, in which a paper-based or wood-based decorative material is adhered to the surface of a wooden substrate, and furthermore, the decorative material is colored or surface-painted. It has been known. Conventionally, as a wood-based substrate of such a floorboard, a board made of a plywood or a muk board is generally used.

[0003]

As described above, as a wood-based substrate for flooring for flooring, a substrate made of plywood or muk board has conventionally been used, and a substrate made of laminated wood has not been used. The reason is that when the laminated wood is used as a floor plate substrate, it tends to be warped, twisted, bent or shrunk, and is not suitable as a floor plate substrate material.

[0004] However, the laminated lumber has various advantages such as high strength, low price, and the ability to relatively freely produce plate materials having desired dimensions and shapes. for that reason,
Heretofore, there has been a demand for using a laminated wood as a material for a wooden substrate of a floorboard for flooring.

The present invention has been made in view of the above-mentioned circumstances, and has as its object to provide a wooden floorboard using a laminated wood as a substrate material.

[0006]

Means for Solving the Problems The present inventors have made intensive studies to achieve the above object, and as a result,
A two-layer structure substrate using laminated wood as the front material and plywood as the back material, and on the top surface of the back material made of plywood (the joint surface with the front material made of laminated material) along the width direction of the back material When a plurality of grooves of a predetermined size and a predetermined shape parallel to each other are formed at predetermined intervals, warpage, twisting, bending, and shrinkage of the surface material made of the glued glue do not occur, and therefore, the glued glue is used as a material of the floorboard substrate. They have found that they can be used, and have accomplished the present invention.

[0007] Accordingly, the present invention, the thickness consisting of laminated wood
A surface material with a thickness of 15 to 21 mm and a thickness of plywood of 9
Comprising a substrate and the back surface material is bonded ～15Mm, substrate
Paper or wood-based decorative material is adhered to the upper surface of
Together with the the upper surface of the back sheet, a plurality of grooves parallel to each other along the width direction of the back sheet are spaced apart a predetermined distance,
And the groove on the upper surface of the back material has a width of 2 to 4 mm and a depth of 4 to 8 mm
The floor board is provided, wherein the interval between the grooves is 15 to 25 mm .

[0008] Here, the laminated wood used in the present invention refers to the direction of length, width, and thickness of an element such as a sawn board or a small square wood using an adhesive with the fiber directions substantially parallel to each other. Refers to a material that has been glued together. Also, plywood is
A material in which a plurality of veneers (thin pieces of wood) are stacked and bonded together with an adhesive.

[0009] In floor of the present invention, grooves are formed on the upper surface of the back sheet has a width of 2-4 mm, in particular about 3mm, depth 4 to 8 mm, and particularly preferably a square grooves of about 6 mm. The distance between the square grooves is 15 to 25 mm,
In particular, it is appropriate to set it to about 20 mm. Groove shape,
By setting the size and the interval as described above, it is possible to reliably prevent the floorboard from warping, twisting, bending, and shrinking due to the laminated wood.

In the floorboard of the present invention, the thickness of the surface material made of laminated wood is about 15 to 21 mm, particularly about 18 mm, and the thickness of the back material made of plywood is 9 to 15 mm, especially 1 to 15 mm.
It is appropriate to set the thickness to about 2 mm in order to prevent the floorboard from warping, twisting, bending, and shrinking due to the laminated wood, to increase the strength of the floorboard, and to increase the amount of the laminated wood to be used effectively. It is.

Although the size of the floor plate of the present invention is not limited, it is usually 250 to 350 mm in width and 400 to 110 in length.
It is appropriate to have a rectangular shape of about 0 mm. However,
The floorboard of the present invention may be square, and in this case, the groove on the upper surface of the back material may be provided in parallel with any side.

In the floorboard of the present invention, a paper-based decorative material (such as a printed paper sheet) or a wood-based decorative material (such as a veneer) is adhered to the upper surface of the substrate, and a colored coating is applied on the decorative material. Layers or surface coating layers. When a paper-based decorative material is adhered to the upper surface of the substrate, an embossed pattern may be formed on the substrate from the paper-based decorative material.
The floorboard of the present invention can be subjected to any processing such as actual processing.

[0013]

FIG. 1 is a partially omitted plan view showing an embodiment of a floor panel according to the present invention, and FIG. 2 is a partially omitted sectional view of the floor panel. The floor plate 2 of the present example includes a substrate 8 to which a front surface member 4 made of laminated wood and a back surface member 6 made of plywood are bonded by an adhesive. Also, the back material 6 made of the plywood
A plurality of straight rectangular grooves 10 parallel to each other are formed at predetermined intervals along the width direction of the back material 6 on the upper surface.

In the floorboard 2 of this embodiment, the dimensions of each part are as follows (see FIGS. 1 and 3). -Width a of floorboard 2 = about 300 mm-Length b of floorboard 2 = about 900 mm-Thickness c of surface material 4 = about 18 mm-Thickness d of backside material 6 = about 12 mm-Width e of groove 10 = about 3 mm -Depth f of groove 10 = about 6 mm-Spacing g between grooves 10 = about 20 mm

Although not shown, in the floor plate 2 of the present embodiment, a paper-based decorative material is adhered to the surface of the substrate 8 (the surface of the surface material 4), and furthermore, the substrate 8 is embossed onto the paper-based decorative material from above. And a colored coating layer and a surface coating layer are sequentially laminated on a paper-based decorative material.

[0016]

As described above, according to the present invention, it is possible to use a laminated wood which has not been used as a substrate material of a wooden floorboard as a material of the substrate. In addition, since the floorboard of the present invention uses a wood-based substrate in which glued laminated wood and plywood are bonded, a floorboard having a high strength, a low price, and a desired size and shape can be made relatively freely. And so on.

[Brief description of the drawings]

FIG. 1 is a partially omitted plan view showing an embodiment of a floor panel according to the present invention.

FIG. 2 is a partially omitted plan view of the floor panel of FIG.

FIG. 3 is an illustration showing dimensions of the floorboard of FIG. 1;

[Description of Signs] 2 Floor plate 4 Surface material 6 Back material 8 Substrate 10 Groove

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B27M 3/04 B27M 3/00 E04F 15/04

Claims (1)

(57) [Claims] 1. A substrate comprising: a laminated material having a thickness of 15 to 21 mm and a back material having a thickness of 9 to 15 mm, which is made of plywood; and Paper-based cosmetic material or
A wood-based decorative material is adhered, and a plurality of grooves parallel to each other are formed at predetermined intervals along the width direction of the back material on the upper surface of the back material, and grooves on the upper surface of the back material are formed.
Is a square groove having a width of 2 to 4 mm and a depth of 4 to 8 mm.
The floorboard , wherein the distance between the floors is 15 to 25 mm .