JPH08156149A - Manufacture of flash structure with decorative sheet pressed - Google Patents

Abstract

PURPOSE: To press a decorative sheet on a flash structure by a vacuum press without breaking a surface base material and generating wrinkles on the decorative sheet. CONSTITUTION: A surface base material is bonded to the surface of a core material assembled in a picture frame shape, and after a temporary core material 5 being inserted into a hollow part surrounded by the core material, a decorative sheet 6 is pressed on the surface base material by a vacuum press. The temporary core material 5 is then removed, and a back base material 8 having a honeycomb core material 9 is bonded to the back of the core material.

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 product in which a decorative sheet such as a vinyl chloride decorative sheet or a transfer sheet is pressure-bonded to the surface of a base material is widely used. 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 is used to draw a vacuum.

However, when performing this vacuum pressing,
Since a large amount of pressure is applied to 22, the central part of the front substrate bends when a decorative sheet is pressed against a flash structure in which the front substrate and the back substrate are bonded to both front and back surfaces of the core material. The surface base material may be broken or wrinkles may occur on the decorative sheet. 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 are inevitably heavy in weight and cost, and are limited in the processed shape.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and makes it possible to apply a makeup to a flash structure by vacuum pressing without destroying the surface substrate or generating wrinkles on the makeup sheet. The purpose of the present invention is to provide a method capable of crimping a sheet.

[0005]

A method for manufacturing a flash structure to which a decorative sheet of the present invention is pressure-bonded, which is made in order to solve the above-mentioned problems, includes a surface base material on the surface of a core material assembled in a frame shape. After bonding and inserting the temporary core material into the hollow part surrounded by the core material, the decorative sheet is pressure-bonded onto the surface base material by vacuum press, then the temporary core material is taken out, and the backside substrate provided with the honeycomb core material. It is characterized in that the 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 pressure-bonded to the flash structure, and it is possible to reduce the weight and the cost of 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 may 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. In this way, 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 drawings]

FIG. 1 is a perspective view showing a step of adhering a core material and a surface base material.

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

[Fig. 3] Fig. 3 is a perspective view showing a step of adhering a back surface base material 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 process.

[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)

[Claims] 1. A surface base material is adhered to the 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 vacuum-pressed on the surface base material. A method for manufacturing a flash structure to which a decorative sheet is pressure-bonded, characterized in that the temporary core material is pressure-bonded, then the temporary core material is taken out, and a back surface base material provided with a honeycomb core material is bonded to the back surface of the core material.