JPS6031906A - Irregular woody decorative board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔Technical field〕 This invention relates to an uneven wood decorative board.

[Background technology]

In general, uneven wood decorative boards are used as constituent materials for doors and the like. As shown in Fig. 1, such a textured wood decorative board is produced by applying adhesive on the back plate 1, disposing the feather core 2, and disposing the core material 3.
It is constructed by applying an adhesive and stacking a surface plate 4 having uneven parts on the feather core 2 and the core material 3, and arranging edge materials 5 at the ends of the surface plate 4 and the back plate 1. There is. In a textured wood decorative board having such a structure, when the height dimensions of the core material 3 and the feather core 2 are different, the surface board 4 can be easily aligned with the core material 3.
．． There was a problem in that it did not adhere to the feather core 2, resulting in poor adhesion.

[Purpose of the invention]

The object of the present invention is to manufacture an uneven wood decorative board that does not cause poor adhesion.

[Disclosure of the invention]

This invention includes a back plate, a plate-shaped core disposed in an intermediate portion other than the end of the back plate, a core material disposed at an end of the back plate,
A surface plate having a flat end portion and an uneven intermediate portion, and is superimposed and fixed on the core material and the plate-like core with the flat end portion facing the core material and the intermediate portion facing the plate-like core, The gist of the surface material is an uneven wood decorative board in which a curved portion (2) is formed between the flat plate-like end portion and the uneven intermediate portion of the surface material.

Next, the present invention will be explained in detail based on examples.

FIG. 2 is a manufacturing explanatory diagram of an embodiment of the present invention. That is, the feather core 2 is placed on the back plate 1 via an adhesive, and the core material 3 is placed on top of it.

In this case, the height of the core material 3 is set larger than the height of the feather core 2, so that a certain difference in height occurs. Then, on the feather core 2 and the core material 3, a surface plate 6 having a flat end portion 6a, an uneven intermediate portion 6b, and a curved portion 6c is placed on top of the feather core 2 and the core material 3. - Manufactured by stacking the core material 3 facing the core 2 with the flat end portion 6a facing the surface of the core material 3 via an adhesive, and pressing this with a pressing plate 8 equipped with a rubber plate 7. .

In this case, the height dimension of the core material 3 and the feather core 2
Even if the difference in the height dimension is more than the allowable amount, the curved portion 6c will curve and absorb the dimensional error (3). That is, since the curved portion 6C is curved in advance, it is in a state with extremely high bendability. Therefore, even if the difference in height between the core material 3 and the feather core 2 exceeds the allowable amount, the curved portion 6C bends to absorb the dimensional difference exceeding the allowable amount.

FIG. 3 shows a partially exploded perspective view of the uneven wood decorative board manufactured in this manner. That is, in this uneven wood decorative board, the flat end portion 6a and the uneven intermediate portion 6b of the surface board 6 are firmly adhered to the surface of the core material 3 and the surface of the feather core 2, respectively, and no adhesion failure occurs. That is, as shown in FIG. 4, when the difference in height between the feather core 2 and the core material 3 is smaller than the appropriate value, the flat end 6a bends from the curved portion 6C to form the shape shown in the figure. The state shown by the chain line A is reached and the dimensional error is absorbed. On the other hand, when the height of the core material 3 is large and the difference from the height of the feather core 2 is larger than the appropriate value, the flat end 6a is curved upward from the solid line, and its dimension is Errors are absorbed.

(4) In this way, this uneven wood decorative board has a core material 3 and a feather.
Even if the height dimension of the core 2 deviates from an appropriate value, the flat end portion 6a bends from the curved portion 6c to absorb the height dimension error. Therefore, no adhesion failure occurs.

〔Effect of the invention〕

Since the uneven wood decorative board of the present invention is constructed as described above, even if there is variation in height between the core material and the plate-like core such as a feather core, the variation will cause the surface board to curve. It is absorbed by the body. Therefore, no adhesion failure occurs.

As shown in FIG. 5, the surface board 6 of the uneven wood decorative board has a wooden veneer laminate 16 placed between an upper mold 10 having an uneven surface and a corresponding lower mold 11. This is then passed through the hot plate 12 to the press upper die 13 and the press lower die 1.
Manufactured by pressurizing at step 4.

In this case, the upper mold 10 of the wood veneer laminate 16.
A tensile force acts on the portion of the lower mold 11 corresponding to the unevenness of the mold surface during pressure molding. Therefore, (5) that part expands and becomes thinner. Therefore, the uneven wood decorative board obtained has flat plate-like edges 6 as shown in FIG.
The thickness t of a is larger than the thickness of the uneven intermediate portion 6b.

Therefore, if the intervals between the upper mold 10 and the lower mold 11 are set to be the same, sufficient pressure will not be applied to the uneven intermediate portion 6b, resulting in incomplete formation of unevenness and incomplete adhesion. There is a problem. Therefore, as shown in FIG. 7, the intervals between the upper die 10 and the lower die 11 are not all the same, but the interval t2 between the uneven parts and the interval t3 between the curved parts are equal to the interval 1 between the flat parts. It is desirable to set it to be smaller than . In particular, the thickness of t2 is defined as Lz=tt
When the value is set to O, 1t, the uneven intermediate portion 6b of the surface plate 6 is formed into a predetermined uneven shape, and no adhesion failure occurs, so that the most preferable result can be obtained. Also, t3
By setting tl to be smaller than tl, the thickness of the curved portion 6C of the surface plate 6 becomes thinner and it becomes easier to curve, so that the adhesion state of the surface plate 6 to the feather core 2 and the core material 3 is even better. become.

(6)

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is an explanatory diagram of manufacturing an embodiment of the present invention, Fig. 3 is a partially exploded perspective view of a wood decorative board obtained thereby, and Fig. 4 is the same. An explanatory diagram illustrating the operation of the bending part, FIG. 5 is an explanatory diagram for manufacturing the surface plate, FIG. 6 is a partial perspective view of the resulting surface plate, and FIG. 7 is a diagram showing the gap between the upper mold and the lower mold. FIG. 1... Back plate 2... Feather core 3... Core material 6... Surface plate 6a... Flat end portion 6b...
Uneven middle part 6c...Curved part Agent Patent attorney Takehiko Matsumoto (7) Figure 1 Figure 2

Claims (1)

[Claims] (11 A back plate, a plate-shaped core disposed in an intermediate part other than the end of this back plate, a core material disposed at an end of the back plate, a flat plate-shaped end and an uneven intermediate part) It has a surface plate that is superimposed and fixed on the core material and the plate-shaped core with the flat plate-shaped end facing the core material and the middle part facing the plate-shaped core, and the flat plate-shaped end of the surface plate and the uneven shape. An uneven wood decorative board characterized by having a curved part formed between the middle part and the middle part.