JPS5946696B2 - Metal molding manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing metal moldings, and more particularly to a method for treating molding ends.

Conventionally, metal molding is made by press-forming a metal plate material, and a decorative layer is provided on the surface of the molding using methods such as plating, vapor deposition, sputtering, or painting, but this causes problems such as pollution. It also has the disadvantage of not being able to be mass-produced.

Therefore, recently, when manufacturing a metal molding such as a pillar cover as shown in FIG. 1 by the present applicant, a flat metal plate material 1 is prepared in advance as shown in FIG.
A colored decorative o-tape 2 is applied to the front side of the
This adhered flat member is blanked into a predetermined shape to produce a molding.

According to this method, since the decorative tape 2 is attached to the surface of the flat metal plate material 1, this work becomes extremely simple, and there is no need to perform any other processing after press forming, making mass production possible. It is possible to do so without causing any pollution. However, according to this method, since the decorative tape 2 is applied to the surface of the metal plate 1 with considerable tension in advance,
As shown in FIGS. 3 and 4, as the decorative tape 2 gradually shrinks during long-term use, its ends 3 move inward, causing the molding 1 made of the metal plate 1
The terminal 11 of 0 is exposed to the outside, resulting in a significant loss of decorative effect, and furthermore, rust etc. occur from this exposed portion.

In addition, when the terminal 11 of the molding 10 is folded back inward as shown in FIG. 3 (at the center of the cover), this exposed part is not visible from the outside, so there is no problem in terms of decoration. No. ■04
As shown in the figure, the above-mentioned problem is exacerbated in the portion where the metal plate material 1 is not bent inward (the end portion of the cover) because the terminal 11 is visible from the outside. An object of the present invention is to make the end of the decorative tape protrude outward from the end of the metal molding made of metal plate material, and to fold this projecting part inward so as to cover the end of the metal molding. This will be explained in detail below using examples.

5 to 8 are manufacturing process diagrams showing an embodiment of the method for manufacturing metal molding according to the present invention, and the same parts as in FIGS. 3 and 4 are denoted by the same reference numerals.

In the present invention, a decorative tape 2 is first applied to the surface of a flat metal plate 1, and then the plate 1 is blanked into the shape of, for example, a pillar cover, as shown in FIG. Molding 10 as shown in Figure 6
Metal plate material 1 at the terminal S that is not folded back inward in
The decorative tape 2 is blanked so that its length is slightly longer by l, and a notch 12 is provided when blanking the metal plate 1 at a location corresponding to the terminal S or in a step before blanking.

Molding 1 from notch 12 after blanking
The part of the metal plate that protrudes from the part corresponding to the terminal S of 0 is folded and removed, thereby forming the molding 10.
Since the decorative tape 2 protrudes outward from a portion corresponding to the terminal S, this protruding portion 20 is folded inward so that the terminal end of the metal plate material 1 serving as the molding 10 is covered by this protruding portion 20. . In this case, by providing an adhesive layer on the back side of the decorative tape 2, the protruding portion 20
The protrusion 20 can be attached to the end side of the metal plate 1 by simply folding it back. As explained above, according to the present invention, the end of the metal molding is covered by the folded part by folding the end of the decorative tape applied to the front side of the metal molding to the back side. Even if mechanical shrinkage occurs, the ends of the metal molding will not be exposed to the outside, making it possible to improve the decorativeness compared to the conventional method, and eliminate the disadvantage of rust on the ends.

Therefore, it is possible to extend the life of the metal molding. In addition, by forming a thin part on the metal plate material inside the end of the decorative member and removing the end side of the metal plate material from this thin part after press forming, the end of the decorative tape can be moved outward more quickly and accurately. It can be made to stand out. Although the present invention has been described with respect to a metal molding made of a pillar cover, the present invention is not limited thereto, and the present invention can be applied to any vehicle exterior product made of a metal material.

[Brief explanation of the drawing]

1 to 4 are plan views and sectional views showing an example of a conventional metal molding manufacturing method, and FIGS. 5 to 8 are perspective views showing an embodiment of a metal molding manufacturing method according to the present invention. FIG. 2 is a diagram and a cross-sectional view. 1... Metal member, 2... Decorative tape,
3...Terminal, 10...Metal molding, 20...Protrusion of decorative tape.

Claims (1)

[Claims] 1. In a metal molding manufacturing method in which a member with a decorative tape pasted on the surface side of a metal plate material is press-molded to produce a metal molding, the end of the decorative tape is Form a thin wall part on the metal plate material inside the
After press forming, the end of the metal plate is removed from this thin wall part so that the end of the decorative tape protrudes outward from the end of the metal plate, and this protruding part is folded back inward to cover the end of the metal plate. A method for manufacturing a metal molding, characterized in that: