JPH0132066B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a novel composite decorative board.

Decorative laminates are used in many applications, such as interior decoration of buildings, furniture, and cabinets for electrical appliances.

Conventionally, this type of decorative board has been made of a decorative veneer adhered to a plywood base or solid wood. However, due to the lack of wood resources and export bans imposed by wood-producing countries, there have been concerns about rising wood prices and insufficient supply of wood materials. It has become necessary to develop.

Therefore, as shown in FIGS. 1 and 2, a decorative board 3 has been developed in which a decorative veneer 2 is attached to the top and four sides of the fiberboard 1. However, if this decorative board is made of solid wood, the wood grain that is continuous with the top surface 5 appears on the side surface 4, which would be the end surface, and since one decorative veneer is bent and pasted, the joint part 6 of the decorative veneer is It has the disadvantage that it is aesthetically inferior due to the formation of scratches, and that its commercial value is reduced because it does not clearly look like solid wood.

The present invention aims to provide a composite decorative board that eliminates the above-mentioned drawbacks, and includes a flat non-wood base material having fitting grooves parallel to the top and bottom surfaces on four side surfaces, and one side of the base material. Wood scraps for side surfaces having protrusions that can be fitted into the fitting grooves are attached to opposing side surfaces via adhesive, and fitted into the fitting grooves to the other opposing side surfaces of the base material. The wood scraps for the end (representing the butt end surface) having the protrusion to be obtained are attached via adhesive, and the decorative veneer is placed on the top surface of the non-wood base material, and the wood scraps for the end is attached to the decorative veneer. A composite board is formed by coating the board so as to show the end surface of the wood grain, and decorative processing is applied to the wood chips on the side of the composite board so that it looks like a decorative board made of solid wood. It is characterized by this.

In other words, the decorative laminate of the present invention has such a structure that the grain of the decorative veneer on the non-wood base material in the center and the grain of the wood scraps for the end of the side are oriented in the same direction, which improves the appearance. There is no sense of strangeness or unnaturalness in the flow of the wood grain, and even if decorative processing such as cross-cutting is applied to the wood scraps, especially those for the end of the wood, it will look just like a decorative board made of solid wood. It looks and has a very good design effect.

Moreover, the decorative board of the present invention is a composite structure of a non-wood base material in the center and wood scraps on the four sides. Non-wood substrates such as flat gypsum boards generally do not expand or deform much due to changes in temperature and humidity, and have higher dimensional stability than solid board materials. Therefore, the decorative laminate of the present invention does not have any defects such as warping or cracking (partial peeling of the decorative veneer) that are observed in conventional decorative laminates made of solid wood, and has a very long service life. Become something. Furthermore, when gypsum flat board is used as the non-wood base material, it has excellent workability and also provides high sound insulation, heat insulation, and noncombustibility effects.

Therefore, the decorative board of the present invention is useful as an interior material for houses, stores, etc., and especially as a decorative material for walls. Specifically, by arranging and gluing a large number of composite decorative laminates on a wall surface vertically and horizontally, it is possible to create a wall surface that at first glance looks like decoratively processed solid wood.

Embodiments of the present invention will be described below based on the drawings.

FIG. 3 is an exploded perspective view of the main parts of the composite decorative board of the present invention, which includes a flat gypsum board 10 as a non-wood base material with fitting grooves 9 on the four side surfaces and cardboard sheets 8, 8 laminated on both the top and bottom surfaces. , a side wood offcut 11 having a protrusion 12 attached to the periphery of the stone slab board 10 using the fitting groove 9, and a protrusion 13 and a protrusion 12 of the wood offcut 11 at both ends. A wood end material 14 for a butt end (representing the butt end surface) having a fitting groove 15 is shown.

By using the fitting groove 9 and the protrusions 12 and 13 to fit these members together with adhesive, the entire side surface of the gypsum flat board 10 is covered as shown in FIG. A structure 16 surrounded by wood scraps is obtained.

As the non-wood base material, instead of the gypsum flat board as in the above embodiment, other gypsum boards, fiberboards, particle boards, asbestos, perlite boards,
Light cal boards, pulp cement boards, rock wool boards, etc. can also be used, and if the base material is weak in strength, reinforcing materials such as paper, cloth or synthetic resin sheets can be laminated on the front and back sides. good. However, when using a gypsum board with cardboard laminated on the top and bottom surfaces, the wood chips for the end and the base material can be attached and bonded to the side wood chips, and both wood chips and the base material can be bonded together. This increases the holding power of the base material, thereby protecting the base material, reinforcing it and compensating for its flaws (brittleness), and making it suitable for use when performing processes such as doweling or actual machining on the end surface of wood, or when nailing during construction. The composite decorative board of the present invention has the advantage of being easy to construct, and has excellent dimensional stability, less occurrence of warpage, and is nonflammable because it is inorganic, and has excellent processability, workability, heat insulation properties,
It has many advantages such as excellent sound insulation, no risk of contamination of the decorative veneer by the gypsum board, and no damage from pests.

In the above embodiment, the side wood chips and the end wood chips are joined by the protrusion provided on the side wood chips and the groove provided on the end wood chips. This does not necessarily have to be the case; for example, a groove may be provided in the connecting portion of the side wood scraps, and a protrusion may be provided in the connecting portion of the end wood scraps to connect the two.

A decorative veneer 17 is laminated on the top surface of the structure 16 surrounded by the thus obtained gypsum flat board wood chips so that the wood chips with the end of the end of the wood are exposed to the grain of the decorative veneer. A composite decorative board 18 of the present invention shown in FIG. 7 is obtained by forming a composite board and applying decorative processing to the entire side portion of the composite board.

Cosmetic processing includes, for example, stepped cosmetic processing that combines right-angled cutting and curved cutting as shown in Figure 5, decorative processing that cuts the sides diagonally as shown in Figure 6, and composite cosmetic processing. Desired decorative treatments can be applied depending on the intended use of the board.

In the present invention, the wood chips for the end of the decorative veneer, which are positioned to represent the grain of the decorative veneer, must be wood chips for the end of the wood grain that represent the grain of the decorative veneer; For example, the grain of the decorative veneer does not appear to be solid wood. The wood scraps for the side surfaces do not have much effect on making the composite decorative veneer look like a single piece of solid wood, so it may be straight-grained or board-grained, depending on the wood grain pattern of the decorative veneer. You can choose one that emphasizes the solid wood, but it is generally preferable to use straight-grained wood.

It is preferable that the non-wood base material and the wood scraps attached to the four sides of the non-wood base material have approximately the same thickness. The size of the decorative veneer only needs to be large enough to at least cover the non-wood base material; if it is too large, it will be removed during decorative processing, so there is no advantage.

Depending on the purpose of use, a board material, paper, synthetic resin sheet, etc. may be attached to the back surface of the composite decorative board of the present invention.

FIGS. 8 and 9 show another embodiment of the present invention, in which three gypsum flat boards 10 are connected in a straight line through straight-grained wood scraps 14 for the ends, and the connection direction of the connected object is On both sides of the end, there are wood scraps 14 for the end of the end.
are attached, and side wood scraps 11 are attached to the other both sides of the connected object to obtain a structure 16' shown in FIG. 8. The stone-covered board and the wood scraps for the end cutter or the wood scraps for the side face are bonded by using an adhesive between the grooves provided on the stone-covered board 10 and the protrusions provided on both wood scraps. combined.

Next, each stone plate board 1 of this structure 16'
By pasting a decorative veneer to the extent that it sufficiently covers the gypsum flat board 10 on top of 0, and applying decorative processing to all the wood chips for the butt ends and the wood chips for the sides. A composite decorative laminate 18' of the present invention as shown in the figure is obtained.

A continuous block-like composite decorative board can be obtained by connecting the non-wood substrates in a straight line or in both vertical and horizontal directions in this way. Particularly when this composite decorative board is used as an interior material for a room, it has the advantage that construction is simplified and the seams are not visible, making it aesthetically pleasing.

As mentioned above, the composite decorative board of the present invention looks like solid wood on the outside even though no wood is used inside, and since the amount of wood used is extremely small, it also saves wood resources. has advantages. In addition, the composite decorative board of the present invention is different from the conventional decorative board in which some wood is omitted. It also has the advantage that the plates can be easily obtained.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a conventional composite decorative laminate, Fig. 2 is a perspective view of a conventional composite decorative laminate, Fig. 3 is an exploded perspective view of the main parts of the composite decorative laminate of the present invention, and Fig. 4 is a gypsum plate. FIGS. 5 and 6 are cross-sectional views showing examples of decorative processing; FIG. 7 is a perspective view of a composite decorative board of the present invention; FIG.
The figure is a perspective view showing another embodiment of a structure in which the entire side surface of a gypsum flat board is surrounded by wood scraps, and FIG. 9 is a partially cutaway perspective view showing another embodiment of the composite decorative board of the present invention. It is. In the figure, 1... fiberboard, 2, 17... decorative veneer,
9, 15... Fitting groove, 10... Stone plate board,
11... Wood scraps for side surfaces, 12, 13... Convex parts,
14... Wood scraps for wood ends, 16, 16'
...A structure whose entire side is surrounded by wood scraps, 17...
Decorative veneer, 18, 18'...Composite decorative board of the present invention.

Claims (1)

[Claims] 1. A flat non-wood substrate with fitting grooves parallel to the top and bottom surfaces on four side surfaces, and a side surface having a protrusion that can fit into the fitting groove on one opposing side of the substrate. Attach the wood scraps for the end of the base material, attach the wood end material for the butt end of the butt end surface having a convex part that can fit into the fitting groove on the other opposing side of the base material, and then attach the decorative veneer. A composite board is formed by covering the top surface of the non-wood base material with the wood end material for the end so as to represent the end surface of the wood grain of the decorative veneer, and the wood end material on the sides of the composite board is decoratively processed. A composite decorative board characterized by being treated with.