JP2001179710A - Wood flooring and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional and high-grade wooden floor which can be used for a long period of time without peeling or rolling up from a groove in which a decorative sheet on a surface forms a pseudo joint. Provide materials. SOLUTION: A groove having a V-shaped cross section engraved on a substrate surface of a wooden flooring material has a bottom surface formed as a narrow flat surface,
The decorative sheet attached to the surface of the substrate has a rich three-dimensional structure in which the decorative sheet is completely adhered to the flat bottom surface without being lifted in the groove. Constructs flooring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden flooring material for a building in a house, and more particularly to a wooden flooring material having a decorative sheet adhered to a surface thereof and a method for producing the same.

[0002]

2. Description of the Related Art In recent years, in place of flooring made of solid natural wood and wooden flooring with a decorative veneer adhered to the surface, decorative surfaces such as resin films and resin-reinforced decorative paper have been applied to the substrate surface. Wood flooring with a sheet attached is widely used. The quality of the decorative sheet attached to the substrate surface is constant, and the appearance and durability are almost the same as those of the decorative veneer due to the improvement of printing technology and the improvement of the resin composition. It is also advantageous in that it is possible to produce inexpensively and in large quantities a wood flooring material with an excellent decorative sheet.

[0003]

However, the wood flooring is usually provided with a groove serving as a pseudo joint, and the groove is formed by attaching a decorative sheet to the surface of the substrate and then cutting the section V.
Since it is engraved by pressing a V-shaped blade against the surface, the groove has a structure in which the decorative sheet is cut by a sharp blade edge. There is a problem that the base material is exposed on both side walls of the groove and the color of the surface is different from that of the decorative sheet, giving a sense of incongruity and reducing the commercial value. For this reason, only a relatively shallow and narrow groove can be formed, which is inferior in three-dimensional appearance and luxury.

Further, even if the decorative sheet is in close contact with the groove along the groove from the substrate surface to the groove bottom, if cut at the groove bottom, the decorative sheet may peel off from the cut end after the application. In addition to being rolled up, the appearance is remarkably impaired, and the durability such as water resistance is lowered, so that it cannot be used for a long time. In the case where the decorative sheet is adhered after the grooves are cut on the surface of the substrate, as shown in FIG. Therefore, even if the decorative sheet c is immersed in the groove b, the decorative sheet c
Due to its thickness, it cannot be brought into close contact with the bottom of the groove, resulting in a raised state, which significantly impairs the three-dimensional effect and makes it impossible to obtain a uniform wood flooring.

The present invention has been made in view of the above problems, and has as its object to provide an excellent appearance, a rich three-dimensional appearance, a high-grade appearance, and a long term without any fear of peeling. Wood flooring that can withstand the use of
An object of the present invention is to provide a production method capable of industrially mass-producing this wood flooring.

[0006]

In order to achieve the above object, a wooden flooring material according to the present invention is a wooden flooring material in which a decorative sheet is attached to the entire surface of a substrate having grooves formed on the surface. The groove engraved on the surface of the substrate has its groove bottom formed on a narrow flat surface and has both groove wall surfaces having a wide groove width from both ends of the flat bottom surface toward the substrate surface. The decorative sheet is attached to the entire surface of the substrate after the grooves are formed, and the decorative sheet is continuous with the flat bottom surface from both side wall surfaces of the grooves. It has a structure that comes into close contact.

According to a second aspect of the present invention, there is provided the above-mentioned method for manufacturing a wooden flooring material, wherein a groove having a V-shaped cross section, the groove bottom of which is previously formed on a narrow flat surface over the entire length. After engraving, a decorative sheet is attached to the entire surface of the substrate, and the decorative sheet portion covering the groove is immersed in the groove, and is continuously adhered to the flat bottom surface from both side wall surfaces of the groove. It is characterized by:

[0008]

The bottom surface of the groove formed in the substrate surface is formed in a narrow flat surface, and the decorative sheet is adhered to the substrate surface provided with the groove, so that the decorative sheet covering the groove portion is provided. By immersing the portion in the groove, the decorative sheet is stuck on the inclined wall surface of the groove without being cut even if the groove is deep and the groove width is wide. Therefore, it is possible to provide a decorative sheet-attached wood flooring material having an excellent appearance without exposing the fabric surface of the substrate to the inclined wall surface of the groove. In addition, since the bottom of the groove is formed as a narrow flat surface, the decorative sheet does not lift up and has a structure that firmly adheres to the bottom of the groove. It exhibits excellent durability and can be used for a long time.

[0009] The method for producing the wooden flooring material is as follows.
Since the groove bottom is formed on a narrow flat surface over the entire length, a groove having a deep and wide constant cross-sectional shape can be easily and accurately carved. After the groove processing, a decorative sheet is adhered to the substrate surface and the decorative sheet portion covering the groove is immersed in the groove, so that it can be completely adhered to the inclined wall surface of the groove and the groove bottom can be formed as described above. As it is formed on a narrow flat surface over the entire length, the decorative sheet does not rise,
A decorative sheet-attached wooden flooring material that is securely adhered to the groove bottom without any risk of breakage and that has a uniform and excellent appearance can be manufactured inexpensively and in large quantities.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a specific embodiment of the present invention.
Of a wooden flooring made of a rectangular plate material of the type described above, and a groove (hereinafter, referred to as a groove) forming a pseudo joint parallel to the long side of the substrate 1 on the surface thereof.
The longitudinal grooves 2 and 2 are engraved over the entire length at regular intervals in the width direction, and the longitudinal grooves 2 and 2 between the adjacent longitudinal grooves 2 and the long side of the substrate 1 and the longitudinal groove 2 adjacent to the long side Between the longitudinal direction of the board | substrate 1, the horizontal groove | channel 3 which forms a pseudo joint at predetermined intervals is carved. The vertical groove 2 and the horizontal groove 3 are formed in a V-shaped cross section in which the groove bottom forms a narrow flat surface. For more information,
As shown in Fig. 2 and Fig. 3, the groove bottom should be 1.
Formed on the flat bottoms 2a, 3a having a width of less than 0 mm, the side walls 2b, 3b extending from both ends of the bottoms 2a, 3a toward the surface of the base material 1 are inclined such that the groove width gradually increases. It is formed on the wall.

The substrate 1 may be a wooden board on which the grooves 2 and 3 can be carved, for example, plywood, LVL (glued laminated wood), particle board, MDF (medium specific gravity fiber board) or a laminate of these boards Can be used. Further, both side wall surfaces 2b and 3b of the vertical groove 2 and the horizontal groove 3 have V joints inclined linearly in cross section from both side ends of the flat bottom surfaces 2a and 3a toward the surface of the substrate 1 as shown in FIG. It may be formed on an inclined wall surface, as shown in FIG. 3, formed on an inclined wall surface of an R joint curved in a convex arc cross section from both side edges of the flat bottom surfaces 2a and 3a toward the surface of the substrate 1. You may leave.

Further, the four-sided peripheral edge on the front surface side of the substrate 1 is chamfered into the same shape as the two-sided groove wall surfaces 2b, 3b to form an inclined end surface 4, and the four-sided end surface has male and female parts 5, 6 are formed.

Reference numeral 7 denotes a decorative sheet adhered to the entire surface of the substrate 1. The vertical groove 2 and the horizontal groove 3 are continuously adhered to the flat bottom surfaces 2a, 3a from the side wall surfaces 2b, 3b. And it is stuck on the whole groove. Such a decorative sheet 7 is a sheet whose thickness is smaller than the width of the flat bottom surfaces 2a and 3a of the grooves 2 and 3, and is made of vinyl chloride, polyethylene, or the like.
A resin film of polypropylene or the like, or a decorative sheet formed by coating or impregnating a printing paper with a resin can be used. The decorative sheet 7 is attached to the entire surface of the substrate 1 to constitute the wooden flooring material A. When printing paper is used, it is preferable to apply a coating to which a lubricant has been added after sticking.

In the wooden flooring material A configured as described above,
If the width of the flat bottom surfaces 2a, 3a of the vertical grooves 2 and the horizontal grooves 3 formed on the surface of the substrate 1 is less than 0.2 mm, it is difficult to immerse the decorative sheet 7 to the bottom surfaces 2a, 3a. As a result, the depth of the pseudo joint of the wooden flooring material A formed by these grooves 2 and 3 becomes shallow, which not only impairs the three-dimensional appearance but also rises from the raised part. On the other hand, if the decorative sheet is damaged and the decorative sheet is turned up, if the bottom width is 1.0 mm or more, the appearance as the pseudo joint becomes unnatural and unnatural in design. 3 flat bottom 2a, 3a width
It is formed to be 0.2mm or more and less than 1.0mm.

Next, a method of manufacturing the wooden flooring material A will be described. As shown in FIG. 4, a V-shaped cross section is formed on a cutting edge 12 having a front end surface having a narrow flat surface over the entire length. The ridged blade body 11 is formed on the surface of the substrate 1 by using a groove processing tool which is provided on the lower surface of the pressing plate 10 so as to correspond to the engraved portion of the vertical groove 2 and the horizontal groove 3 of the substrate 1. When the pressing plate 10 is pressed, the flat bottoms 2a, 3a and the side surfaces of the bottoms 2a, 3a are inclined toward the surface of the substrate 1 from the flat bottom surfaces 2a, 3a on the substrate 1 as shown in FIG. The grooves 2 and 3 having a V-shaped cross section are formed. The groove processing tool is not limited to the pressing plate 10, but may be a roll body having the blade body 11 protruding therefrom. Alternatively, a shaft body having the blade body 11 formed at the tip is rotated. The groove processing may be performed by moving in the horizontal direction while moving.

In this manner, the bottom of the groove is formed on the surface of the substrate 1 on the flat bottom surfaces 2a, 3a having a narrow width over the entire length.
After engraving V-shaped vertical grooves 2 and horizontal grooves 3 that form b and 3b on the inclined surface inclined obliquely upward from both ends of the bottom surfaces 2a and 3a, the surfaces of these grooves 2 and 3 are included. Then, an adhesive is applied to the entire surface of the substrate 1, and thereafter, the decorative sheet 7 is overlapped on the substrate 1, the decorative sheet 7 is adhered to the substrate surface by a lapping method or a curved press, and the grooves 2 and 3 are formed. The covered decorative sheet part is pushed into the grooves 2 and 3 and adheres completely from the side wall surfaces 2b and 3b to the narrow flat bottom surfaces 2a and 3a, and is adhered integrally to the grooves 2 and 3. Is what you do. In addition, two decorative sheets may be arranged on the surface of the substrate 1 and stuck on the entire surface, but it is better to stick one continuous decorative sheet over the entire surface of the substrate 1 without a seam. It is possible to make a clean cosmetic surface free from the possibility of turning over, and furthermore, the operation can be simplified.

A plurality of the wooden flooring materials A thus manufactured are laid on the floor base surface while engaging the opposite male and female parts 5, 6 to form a floor. In the materials A, A, joints having the same shape and the same size as the grooves 2, 3 are formed by the inclined end surfaces 4, 4.

[0018]

As described above, according to the wooden flooring material of the present invention, the wooden flooring material is obtained by sticking a decorative sheet over the entire surface of a substrate having grooves formed on the surface. The groove engraved on the surface has the groove bottom formed on a narrow flat surface, and both side wall surfaces are inclined in a direction in which the groove width is widened from both ends of the flat bottom toward the substrate surface. Since the decorative sheet is attached to the entire surface of the substrate after the grooves are formed and the grooves are continuously adhered to the flat bottom surface from the groove wall surfaces on both sides thereof. The substrate material is not exposed at the bottom of the groove, and the structure is entirely covered with a decorative sheet from the surface of the substrate to the bottom of the groove, so that it has a beautiful appearance and can increase its commercial value. .

Further, since the bottom surface of the groove formed on the substrate surface is formed as a narrow flat surface as described above, even if a deep groove is formed, the decorative sheet can be surely extended to the groove bottom surface. It is possible to provide a close-fitting structure, and therefore, it is possible to provide an excellent wooden flooring material rich in three-dimensional feeling and luxury, and furthermore, the groove is formed from the groove bottom to both side groove wall surfaces by a seamless decorative sheet. Because it is covered, the water resistance and the stain resistance are improved, and the decorative sheet can be used for a long time without fear of peeling or rolling up.

Further, according to the method for manufacturing a wooden flooring material of the present invention, a groove having a V-shaped cross section in which the groove bottom is formed on a narrow flat surface over the entire length is cut in advance. The decorative sheet is attached to the entire surface of the substrate, and the decorative sheet portion covering the groove is immersed in the groove, and is continuously adhered to the flat bottom surface from both side wall surfaces of the groove. Therefore, the groove bottom is formed in advance on the surface of the substrate so that the groove bottom is formed on a narrow flat surface over the entire length, so that a groove having a deep and wide constant cross-sectional shape is easily and accurately engraved. After the groove processing, the decorative sheet is adhered to the substrate surface and the decorative sheet portion covering the groove is pushed into the groove, so that it can be completely adhered to the inclined wall surface of the groove. Groove bottom is formed on a narrow flat surface over the entire length as described above Therefore, the decorative sheet can be securely and easily adhered to the groove bottom without lifting the decorative sheet and without the risk of being damaged, and the decorative sheet-attached wooden flooring material having a uniform and excellent appearance can be manufactured at a low cost. And it can be manufactured in large quantities.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wooden flooring,

FIG. 2 is an enlarged longitudinal sectional view of the groove portion,

FIG. 3 is an enlarged longitudinal sectional view of a groove portion showing another embodiment;

FIG. 4 is a simplified vertical sectional view immediately before a groove is formed on a substrate;

FIG. 5 is a simplified vertical cross-sectional view after a groove is formed;

FIG. 6 is a partial longitudinal sectional view showing a state in which a decorative sheet is stuck;

FIG. 7 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wooden substrate 2, 3 Groove 2a, 3a Flat bottom 2b, 3b Side wall of groove 7 Decorative sheet 11 Blade 12 Blade edge

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B250 AA05 BA03 BA06 CA11 DA04 EA02 EA13 EA18 FA09 FA18 FA21 FA28 FA31 FA33 GA03 HA01

Claims (2)

[Claims] 1. A wooden flooring material comprising a decorative sheet adhered to the entire surface of a substrate having a groove formed on the surface, wherein the groove formed on the surface of the substrate has a narrow groove bottom. It is formed on a flat surface and both side wall surfaces are formed on inclined wall surfaces inclined in a direction in which the groove width is widened from both side ends of the flat bottom surface toward the substrate surface, and the decorative sheet is provided with a groove. A wooden flooring material which is adhered to the entire surface of a substrate after engraving a groove, and is continuously adhered to a flat bottom surface from both side wall surfaces of the groove. 2. A groove having a V-shaped cross section in which the groove bottom is formed on a narrow flat surface over the entire length is cut in advance, and a decorative sheet is attached to the entire surface of the substrate and the groove is formed. A method for manufacturing a wooden flooring material, wherein a decorative sheet portion covered is immersed in a groove and continuously adhered to the flat bottom surface from both side wall surfaces of the groove.