JP3572812B2 - Decorative plate and manufacturing method thereof - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wooden decorative board used for furniture, housing equipment, and the like.
[0002]
[Prior art]
Conventionally, wood decorative boards used for furniture, housing equipment, etc., such as doors, counters, table tops, etc. A decorative sheet on which a pattern such as a natural precious wood or a natural marble is printed is stuck on the surface of the base material, and a decorative rim material having the same pattern is stuck on the side surface.
[0003]
In the case of shelves inside the furniture storage area, since the issues related to the beauty and safety of the corners are not so important, the edge sticking should be performed by applying the edge of the wooden veneer and the edge of the wooden board perpendicular to the surface. It suffices to cut, apply a flat plate-like thin rim to the surface, and chamfer the corners. Corners such as doors and table tops also need to be rounded by increasing the chamfers of the corners, since aesthetics and safety are also important.
[0004]
In the case of a decorative panel with a thin decorative sheet attached to the surface, if the corners are enlarged, the base material of the decorative panel will appear and impair the appearance, so use a thick decorative panel or use a thick rim. And costs rise significantly.
[0005]
Therefore, as a method that does not significantly increase the cost, a method as shown in FIG. 5 is usually performed. That is, a method is employed in which a decorative sheet on which a natural wood pattern or a monocolor is printed is attached from the side to the surface by a soft forming inlay method, and the corners are curved. The soft forming inlay method is a method in which, while bending a decorative sheet by heat, from the side to the surface of the decorative sheet with an adhesive, the corners are attached at a right angle or flush with the surface while imparting a curved surface. .
[0006]
In this case, it is necessary to cut out the decorative plate surface of the base material near the side by the thickness corresponding to the thickness of the decorative sheet to be pasted. .
[0007]
Moreover, (1) the decorative board is cut into a predetermined size, (2) the decorative board surface near the side face is cut out, and (3) the corner of the decorative board is subjected to a curved surface processing as necessary, and (4) A machine that can continuously perform a series of these operations and a work of attaching a decorative sheet from the side to the surface has been developed and put into practical use.
[0008]
According to the soft forming inlay method, even in the case of a decorative plate having a very thin decorative sheet adhered to the surface, a large roundness can be applied to the corners. The decorative board with decorative sheets attached to the four sides by the soft forming inlay method is also bordered by the same decorative sheet as the sides with a constant width on the surface, and if used for furniture doors, looks like a framed door, Also, when used on a table top, it looks like a wide edge material is applied around the four circumferences.
[0009]
[Problems to be solved by the invention]
When sticking the side surface by the above method, in the prior art, it is stuck by two steps of sticking the edge in the longitudinal direction (wood end surface) or the edge in the short direction (kiguchi surface) first, and then sticking the other side (kiguchi surface). . This step will be described in detail. First, as shown in FIG. 2, a decorative sheet S is applied from the wood end face to the surface of the decorative board, and then cut by the thickness of the decorative sheet S from the cut end to the surface. Chip (FIG. 3). Subsequently, the decorative sheet S is applied from the cut-out edge to the surface (FIG. 4). Finally, the C1, C2, and C3 surfaces are chamfered so that the corners are continuous curved surfaces (FIG. 5).
[0010]
However, the above method causes the following problem at the corner. That is, there is a problem in that a cross section of the decorative sheet S appears on the C1, C2, and C3 faces subjected to the chamfering in FIG.
[0011]
Although FIGS. 1 to 5 are schematically drawn to facilitate understanding of the entire scope of the invention, practical dimensions and detailed portions are omitted, such as omitting the curved surfaces of the corners of the base material. If the cross section near the C1 plane in 5 is drawn in detail according to practical dimensions, a cross sectional structure as shown in FIG. 7 is obtained. As is clear from FIG. 7, the section D of the decorative sheet appears at the chamfered portion. The section D becomes more prominent as the radius of curvature of the chamfer increases and as the thickness of the decorative sheet increases. . If the cross section of the decorative sheet S appears continuously over the entire length of the chamfered portion, it is not so unsightly, but the appearance is impaired because it appears locally as shown in FIG.
[0012]
When the pattern of the decorative sheet is monocolor and the same color is used up to the inside, it is not so noticeable, but not only the adhesive layer appears at the boundary with the curved surface portion C, but the chamfering of this portion is usually performed by sander or the like. Because the surface of the decorative sheet is inevitably different from the curved surface portion C where the surface of the decorative sheet appears as it is, the surface smoothness and the gloss etc. are inevitably generated. is there.
[0013]
When the pattern of the decorative sheet is a wood grain pattern and only the surface of the sheet is printed, the ground color of the base material of the decorative sheet S appears on the C1 surface, which is even more unsightly. Further, even if a decorative sheet having a structure like a so-called Kintaro candy appears in a continuous pattern even if it is cut in the thickness direction like a veneer veneer made of natural wood, in FIG. Since the grain direction crosses at the boundary with the cross section D of the sheet, the portion of D gives a feeling of being peeled off, which is also unsightly in appearance.
[0014]
[Means for Solving the Problems]
The present invention has solved this problem by the following method. This will be described below with reference to the drawings.
[0015]
First, a decorative sheet S is applied by a soft forming inlay method from two parallel side surfaces of either a wooden end surface or a wooden edge surface of a rectangular decorative plate (FIG. 2). Similarly, a decorative sheet S is applied by soft forming inlay from the other two parallel side surfaces to the surface (FIG. 4). Next, as shown in FIG. 6, the sheet is cut in parallel with the two side faces (the end face of the tree in FIG. 6), and the decorative sheet attached to the two side faces is completely removed. Subsequently, as shown in FIG. 1, an edge material E having a large thickness and a continuous pattern appearing in the thickness direction is attached to the two cut side surfaces, and finally, the corners of the edge material E are chamfered. FIG. 8 is a view showing a cross section of a decorative board according to the present invention, and is a view corresponding to FIG. 7 of the prior art.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
In the practice of the present invention, the base material of the wooden decorative board may be any plywood, LVL, fiberboard, particle board, etc., as long as it is a woody flat base material used for construction, furniture, and home appliances. The decorative sheet before applying the decorative sheet S and the rim material E is obtained by applying a decorative sheet or a veneer such as a natural precious wood veneer to at least one surface of the base material, while the other surface remains as the base material. May be. The decorative sheet S applied by the soft forming inlay method is a material that can be easily bent and deformed by heating. For example, soft and thin vinyl chloride can be easily bent and deformed without heating, but has a low surface hardness and is easily damaged. If hard vinyl chloride is thick, it takes a long time for bending deformation, and the work efficiency is low. Moreover, the thicker, the higher the cost.
[0017]
In the case where the surface is required to have heat resistance and stain resistance such as a table top, a hard material such as a melamine decorative board is used.
[0018]
Therefore, the decorative sheet S used in the present invention may be selected based on the performance required by the use of the decorative board manufactured by the method of the present invention. There is no particular limitation. However, since the object of the present invention is to provide a curved surface to a corner by a low-cost method, it is not necessary to use an unnecessarily thick decorative sheet.
[0019]
Next, as for the edging material E used in the present invention, a cross section of the edging material E appears at a curved surface portion at the boundary between the wood end surface or the lip surface and the surface, and at a chamfer at the boundary between the wood end surface and the lip surface. Therefore, it is necessary that the edge material E has the same color and pattern continuously appear in the thickness direction from the surface to the inside like Kintaro candy. As such an edge material, those made of synthetic resin and having a wood grain pattern or a monocolor are commercially available. Further, the thickness of the edge material E is required to be a thickness corresponding to the radius of curvature of the curved surface provided at the corner. Even if a thicker one is used, it is not only economically wasted, but also because the boundary line with the surface decorative sheet cuts into the decorative sheet surface side by the excess thickness, the thickest radius of curvature is up to the radius of curvature plus 0.5 mm. Appropriate.
[0020]
As described above, since an edge material having a thickness corresponding to the radius of curvature of the corner roundness is required, the area of the side surface to which the edge material is to be pasted is compared with the area of the decorative board surface when the radius of curvature is too large. However, if it is larger than usual, the cost may increase.
[0021]
Generally, the side with the longer length is called a wood end, and the shorter side is called a kiguchi. In the explanatory view of the present invention, the side where the rim is applied is the wood end face, but the shorter the rim is applied, the cost is lower, so it is usual to use the lip end as the tip end. . The point is that it is only necessary to decide on which side the edge material is to be applied in consideration of design problems and costs. Although the figure does not show the details of the lower part of the decorative plate or the corners of the back surface, if the same makeup is required on the back surface depending on the application, it may be considered in the same manner as the front surface.
[0022]
【The invention's effect】
In the decorative board provided with a curved surface at the corners of the wood edge and the wood edge by the soft forming inlay method, the decorative sheet cross section appears locally at the wood edge or the wood corner in FIG. 3 or FIG. Since the color tone and luster are different from those of the other corners and the pattern is not continuous, the aesthetic appearance of the decorative board is impaired. The present invention is an improvement over the above-mentioned disadvantages of the prior art.
[Brief description of the drawings]
1 is a perspective view of a decorative panel according to the present invention; FIG. 2 is a perspective view of a decorative panel; FIG. 3 is a perspective view of a decorative panel; FIG. 4 is a perspective view of a decorative panel; 6: Perspective view of decorative board [Fig. 7] Cross-sectional view of decorative board [Fig. 8] Cross-sectional view of decorative board according to the present invention [Explanation of reference numerals]
Reference Signs List A wood end face B wood end face C curved face part C1 chamfered part C2 chamfered part C3 chamfered part D Section of decorative sheet E Edge material S decorative sheet

Claims (2)

1. A decorative sheet is applied by a soft forming inlay method from two sides of either one of a wooden edge and a wooden mouth of a decorative board made of a rectangular wooden base material,
2. Similarly, apply a decorative sheet by soft forming inlay method from the other two sides to the surface,
3. Subsequently, the cut edge is cut in parallel to the two sides attached earlier on one of the sides of the wood edge or the tip, and the decorative sheet attached to the two sides is removed,
4. On the two sides from which the decorative sheet has been removed, paste an edge material in which a continuous pattern appears in the thickness direction,
5. The corners of the edge material are chamfered.
A method for manufacturing a decorative board by the above five steps. A decorative board manufactured by the method according to claim 1.

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