JP2593291B2 - Manufacturing method of flash structure with decorative sheet pressed - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a flash structure to which a decorative sheet used for, for example, a desk top plate is pressed.

[0002]

2. Description of the Related Art As a top plate of a desk and other wooden furniture members,
BACKGROUND ART A decorative sheet such as a vinyl chloride decorative sheet or a transfer sheet is pressure-bonded to the surface of a base material. In order to pressure-bond such a decorative sheet, usually, as shown in FIG. 5, a base material 22 is placed on a vacuum suction disk 21, a decorative sheet 23 is put on the surface thereof, and then pressed by a rubber film 24. Suction suction pad 21
A vacuum press for vacuum suction is used.

However, when performing this vacuum pressing,
Since a large amount of pressure acts on the surface material 22, when the decorative sheet is pressed against the flash structure in which the front and back surfaces are bonded to both the front and back surfaces of the core material, the central portion of the front surface material is bent. The surface substrate may be destroyed, or the decorative sheet may wrinkle. For this reason, it is impossible to press the decorative sheet against the flash structure by a vacuum press, and the base material 22 is a solid material (solid material).
Could only be used. As a result, a thick product such as a top plate and a long product such as a door inevitably increase in weight and cost, and are limited in the processing shape.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and does not damage the surface base material or cause wrinkles on the decorative sheet. It is intended to provide a method capable of crimping a sheet.

[0005]

Means for Solving the Problems To solve the above-mentioned problems, a method of manufacturing a flash structure to which a decorative sheet according to the present invention is crimped is provided by attaching a surface base material to a surface of a core material assembled in a frame shape. The temporary core is inserted into the hollow part surrounded by the core, and the decorative sheet is pressed by a vacuum press on the surface base material. Thereafter, the temporary core is taken out, and the rear base having the honeycomb core is taken out. It is characterized in that a material is adhered to the back surface of the core material.

[0006]

According to the present invention, the temporary core material is inserted into the hollow portion and the decorative sheet is pressed on the surface base material by the vacuum press, so that the surface base material does not bend even under a large pressure.
For this reason, the decorative sheet can be pressed against the flash structure, and the weight and cost can be reduced even for a thick product such as a top plate or a long product such as a door.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in FIGS. First, as shown in FIG. 1, wooden cores 1 and 2 are assembled in a frame shape. As the core materials 1 and 2, a synthetic material such as MDF can be used. Next, a thin plate-shaped surface substrate 3 is adhered to the surfaces of the frame-shaped core members 1 and 2. The material of the surface substrate 3 can also be a synthetic material such as MDF.

Prior to placing the core materials 1 and 2 having the surface substrate 3 bonded thereon on the vacuum suction plate 4 as shown in FIG. 2, a solid portion is formed in a hollow portion surrounded by the core materials 1 and 2. Is inserted. Then, a decorative sheet 6 such as a vinyl chloride decorative sheet or a transfer sheet is placed on the surface of the surface substrate 3, and a vacuum press is performed while applying a high pressure with the rubber film 7. As a result, since the center of the surface base material 3 is supported by the temporary core material 5, the decorative sheet 6 is uniformly pressed to the surface of the surface base material 3 and the side surfaces of the core materials 1 and 2 without bending. Then, the core material 1,
The temporary core material 5 is extracted from 2.

Next, as shown in FIG. 3, a back substrate 8 is bonded and pressed to the back surfaces of the core members 1 and 2, and a honeycomb core material 9 is bonded to the upper surface of the back substrate 8 in advance. . The honeycomb core material 9 has a size substantially equal to the hollow portions of the core materials 1 and 2. When the back substrate 8 is bonded to the back surfaces of the core materials 1 and 2, the upper surface of the honeycomb core material 9 Make contact with the back side to support it. Thus, FIG.
The flash structure 10 in which the decorative sheet 6 is pressed on the surface as shown in FIG.

[0010]

As described above, according to the method of the present invention, the decorative sheet can be pressure-bonded by the vacuum press while having the flash structure. It is possible to achieve light weight reduction and cost reduction. In addition, restrictions on the thickness, width, length, etc. of the product are reduced, and there are no restrictions on the design, and a product with a large thickness can be easily manufactured. . Therefore, the present invention greatly contributes to the industry as a method of manufacturing a flash structure that solves the conventional problems.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bonding step between a core material and a surface base material.

FIG. 2 is a cross-sectional view illustrating a pressure bonding step of the decorative sheet.

FIG. 3 is a perspective view showing a bonding step of a back substrate provided with a honeycomb core material.

FIG. 4 is a perspective view showing a flash structure to which a decorative sheet is pressed.

FIG. 5 is a perspective view showing a normal vacuum pressing step.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Core material 2 Core material 3 Surface base material 4 Vacuum suction board 5 Temporary core material 6 Decorative sheet 7 Rubber film 8 Back base material 9 Honeycomb core material 10 Flash structure 21 Vacuum suction board 22 Base material 23 Decorative sheet 24 Rubber film

Claims (1)

(57) [Claims] 1. A surface base material is bonded to a surface of a core material assembled in a frame shape, a temporary core material is inserted into a hollow portion surrounded by the core material, and a decorative sheet is formed on the surface base material by vacuum pressing. A method for manufacturing a flash structure to which a decorative sheet is pressure-bonded, comprising: bonding the temporary core material, removing the temporary core material, and bonding a back substrate provided with the honeycomb core material to the rear surface of the core material.