JPH03247410A - Small wood piece bonded decorated panel - Google Patents

Abstract

PURPOSE:To prevent a gap between adjacent wood decorated materials from being produced by applying the end of a small wood piece having inclined section on at least one of four sides thereof closely to the upper surface of a base board and bonding ends of small wood pieces having no inclined section closely to each other through adhesive. CONSTITUTION:A small wood piece 1 is of natural solid material and has a thickness of 2mm or larger. Small wood pieces 1 having inclined section 2 on at least one of four sides are applied to the upper surface of a base board 6 with their ends being closely bonded to each other through adhesive 3. The ends of the pieces 1 are bonded to each other, while the ends of the pieces having no inclined section 2 are bonded to each other through adhesive 4. A groove 5 is formed on the surface of the joint between the ends of pieces 1 having inclined section 2, whereas the surface of the joint between the ends of pieces having no inclined section is flat without groove. Since the adjacent ends of pieces having no inclined section have adhesive therebetween, these ends are firmly bonded to each other, with the result that gaps are not produced between the ends, even if the piece has a thickness of 2-5mm.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a decorative board in which a thick decorative wood material is adhered to the upper surface of a base material.

[Prior Art] Conventionally, decorative wood materials have been provided in which a thick decorative wood material is adhered to the upper surface of a substrate in order to create a sense of luxury.

[Problem M to be solved by the invention] However, the thicker the wooden decorative material that is attached to the top surface of the board, and the greater the amount of swelling and contraction of solid wood than the plywood structure, After it was attached to the top surface, it swelled and contracted due to changes in humidity. In particular, wood materials are often cut and pasted to the base material when the moisture content is high.
This resulted in drawbacks such as subsequent drying shrinkage and gaps between the wood decorative materials.

[Means for Solving the Problems] This invention solves the problems of the conventional decorative board as described above, and is composed of a small piece of wood with an inclined part on at least one side of the four peripheries. In a decorative board whose ends are tightly joined and adhered to the upper surface of a substrate, the ends of the small pieces of wood with no sloped portions are closely joined together with adhesive.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a front view of a decorative board joined with small pieces of wood according to an embodiment of the present invention, and FIG. 2 shows an enlarged sectional view taken along line A-A.

1 is lJ with slope 8 provided on at least one side among the 4 peripheries
1 is a piece of wood, 2 is a sloped portion, 3 and 4 are adhesive layers, 5 is a groove, and 6 is a base material.

The base material 6 used in the present invention is a commonly used base material 6 such as a wood base material such as plywood, burleicle board, or MDF, or an inorganic base material such as gypsum board.

The small piece of wood 1 is made of solid natural wood and has a thickness of <2 m or more.

A small piece of wood L having an inclined portion 2 on at least one side of its periphery is pasted on the upper surface of this base material 6 with an adhesive 3 in such a manner that the ends B of each piece are tightly joined. The sloped part 2 provided at the end of the small piece of wood I may have any number of sides, such as one side, two sides, or three sides. In (b), the inclined part 2 was provided only at both ends in the longitudinal direction and on one side of both long sides.

The ends of the small wood piece 1 are tightly joined together, but an adhesive 4 is interposed between the ends where the inclined part 2 is not provided.

At this time, 5 is formed on the surface of the joint where the ends of the small piece of wood 1 with the slope 2 are joined together, but on the surface of the joint where the ends without the slope 2 are closely joined. The surface is smooth with no grooves.

Trowel, /JX The reason why adhesive is not used at the joint where the ends of the wood piece 104 with the slope 2 are joined together is because the groove 5 is formed on the surface of this joint. This is because even if a gap occurs between the small pieces of wood, there will be no apparent problem.

The adhesive used between the base material δ and the small wood piece 1 and between the ends of the small wood piece 1 is vinyl acetate resin, urethane resin, epoxy resin,
Attach with hot or cold pressure using a commonly used wood-to-wood adhesive such as urea resin or melamine resin.

Incidentally, the surface of the small piece of wood stuck on the base material 6 is subjected to a common painting process such as polishing, undercoating, topcoating, etc., as necessary, to provide a surface decoration.

[Function] In the present invention, an adhesive is applied to the joint between the ends of a small piece of wood that is attached to the upper surface of the base material and has a sloped part on at least one side among the four peripheries. This is to prevent the thick pieces of wood from shrinking and creating gaps between them by adhering them with the adhesive ζ.

[Effects] As described above, the small wood piece bonded decorative board of the present invention has adhesive applied to the joints between the four edges of the small wood pieces adhered to the upper surface of the base material, where the inclined parts are not provided. Since the ends of adjacent small pieces of wood are firmly glued together, the thickness of 2 mm to 5 f
Even if a small piece of wood is made of thick wood material in the range of f1m, no gaps will be formed.

Moreover, since the decorative board of the present invention has a small piece of wood made of thick wood material of 2t+s or more attached to the surface, it gives off a sense of luxury.

[Example] As shown in FIG. , a small piece of wood 1 with a sloped part 2 on only one side
When attaching the water-based vinyl urethane resin adhesive to the upper surface of the plywood base material 6 using a water-based vinyl urethane resin adhesive, apply water-based vinyl urethane resin adhesive to the side edges of the small wood pieces 1 where the inclined portion 2 is not provided. After coating and cold-pressing, the desired small wood piece bonded decorative board was obtained.

[Brief explanation of drawings]

Fig. 1 is a front view of a decorative board joined with small pieces of wood according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view taken along line A-A, and Fig. 3 shows a small piece of wood with an inclined portion used in the embodiment. ing. 1 - Small piece of wood 2 - Sloped part 3 - Adhesive layer between small piece of wood and base material 4 - Adhesive layer between ends of small piece of wood 5 - Groove, 6 - Base material

Claims (1)

[Scope of Claims] In a decorative board in which the ends of a small piece of wood (1) having a sloped part (2) on at least one side of the periphery of 1 and 4 are closely joined and adhered to the upper surface of a substrate, A decorative board joined with small pieces of wood, characterized in that the ends of (1) which are not provided with the inclined part (2) are tightly joined together with an adhesive.