JPS6172154A - Curved processed member and its production - 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 (Field of Industrial Application) The present invention relates to a curved surface processed member and a method for manufacturing the same. Specifically, a plate-shaped base material of a curved surface processed portion is cut and removed, and an elastic material is applied to the cut and removed portion. The present invention relates to a technique for manufacturing a curved member in which a base material having a width is embedded and the bent portion has elasticity.

(Prior art) As a method for making a soft curved surface member, the part corresponding to the curved surface is curved from a material such as soft resin, rubber, or latex that has elasticity, and is made of a plate-shaped core material. Conventionally, methods have been used in which resin or rubber is bonded to the edge of the plate by bonding to the edge or by casting.

(Problem to be solved by the invention) However, in the method of joining curved parts, the curved part is molded separately and attached in a later process, which creates gaps and steps at the joint, resulting in poor precision and patterns. There were problems such as non-continuity. Furthermore, the casting method also has the disadvantage that the molds used are expensive and that it cannot be easily applied to many types of curved parts having different shapes and sizes.

(Means for Solving the Problems) The present invention attempts to solve the above-mentioned drawbacks of the prior art. After cutting and removing the core material, an elastic base material is buried in the removed portion and then bent and bonded to the surface of the core material.

The present invention will be described in detail below with reference to the drawings.

First, as shown in Fig. 1, a plate-like base material (1) having a sheet-like material 12) laminated on one side is prepared, and the plate-like base material (1) is coated from the side on which the sheet-like material is not laminated. Cut it into a concave shape and remove it.

The width of the cut portion is determined depending on the size of the curved portion required. Further, the depth may be such that the plate-like base material is completely removed as shown in FIG. 1, or a thin layer of the plate-like base material may remain in contact with the sheet-like material.

As the plate-like substrate (1), conventionally used materials such as plywood and particle board (θ) can be used, and as the sheet-like material (2), synthetic resin sheets, resin-coated paper, impregnated paper, etc. with an elongation rate of 7 can be used.
% or more, and those decorated with colors, patterns, unevenness, etc. can be used.

Next, as shown in FIG. 2, an elastic base material (3) such as a thermoplastic resin foam is embedded in the cut portion. The elastic base material used here has a Sure hardness of 1
In addition to resin foams such as vinyl chloride resin bodies, ABS resins, polypropylene, polyethylene, and styrene having a hardness of 0 to 70 degrees, base materials having elasticity and restoring force such as rubber and latex can be used.

The base body (3) can be simply fitted into the cut-out portion, or it can be fixed to the inner surface of the groove using an adhesive (1 degree).Next, as shown in Figure 6, a sheet-like material (2 ) with the side facing outward, and bonded to the surface of the core material (410) via an adhesive to obtain a curved surface processed member (5) as shown in the first basket.

(Function) The elastic base material embedded in the cut-out part is compressed on the inside by the bending process and is pressed against the edge of the core material, but all of this pressure is caused by the deformation of the elastic base material. As a result, the side of the sheet material at the bent portion becomes a gentle curve.

(Effects of the invention) ■ A curved surface close to a circular arc can be formed in the curved surface processed portion.

■ High safety because one end of the curved corner has elasticity.

■ Can curved surfaces be processed without chamfering the core material? −
It is possible to reduce the number of steps and make it cheaper in terms of cost.

[Brief explanation of the drawing]

Figure 4 shows a plate-shaped base material with sheet-like materials laminated on one side and a part of the other side is cut away, Figure 2 shows a state where an elastic base material is embedded in the cut away part, and Figure 3 The figure further shows a state in which the plate-shaped base material has been bent, and the top and bottom figures show cross-sectional views of the curved surface processed member that has been removed. (1)... Plate-shaped base material (2)... Sheet-like material ()... Elastic base material (4)... Core material (51... Patent application for curved surface processing member) Kazuo Suzuki, Representative of Hitotoppan Printing Co., Ltd.

Claims (2)

[Claims] (1) A member made by laminating a plate-like base material with sheet-like materials laminated on one side to a core material having a curved surface on the surface, where the part of the plate-like base material that comes into contact with the curved surface of the core material A curved surface processed member characterized in that the base material is replaced with an elastic base material. (2) After laminating the sheet-like material on one side of the plate-like base material, the plate-like base material is cut and removed in a concave shape from the other side of the plate-like base material, and then an elastic layer is placed on the removed portion. After burying the material, the buried portion is bent, and then a plate-shaped base material is bonded to the core material having a curved surface so that the bent portion comes into contact with the curved surface of the core material. A method for manufacturing a curved surface processed member, characterized by: