JPH0448614B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a molding for a vehicle, in which a synthetic resin tape is bonded in stripes to the outer surface of the molding body in order to enhance the decorativeness. .

Conventional Technology Conventionally, in order to form a striped pattern on a part of the outer surface of a vehicle molding using a synthetic resin tape, the molding body is made of soft polyvinyl chloride resin (hereinafter referred to as "PVC") or the like. It is possible to use a synthetic resin tape that can be joined when the molding body is maintained at a temperature close to the melting temperature at the same time as extrusion molding or immediately after the extrusion molding, and the tape is attached at the extrusion mouthpiece or crimped with a pressure roll. Normal.

Problems to be Solved by the Invention The end cap that covers the cut end surface of the terminal is integrally fixed to the molding by injection molding, but the end cap is not attached to the molding body. Since a pattern has already been formed, a continuous striped pattern cannot be formed. Comparing them decoratively, it is preferable to have a striped pattern formed on the end cap as well, but forming the pattern separately by mask painting etc. not only takes time, but also creates a gap between the molding body and the end cap. It is difficult to finish the parts beautifully.

Means for Solving the Problems In the method of manufacturing a molding for a vehicle according to the present invention, a molding body having an end cap integrally molded with a terminal is made of a molding body including the end cap, which has mutually different colors and is compatible with the molding body. The resin tape is continuously welded and joined over the entire length from the outer surface of the end cap.

This will be explained below with reference to the accompanying drawings.

This molding for a vehicle is made by continuously extruding the molding body M, and then injecting and extruding the end caps E, E in advance on the ends of the molding body M, which are cut to a certain size, and continuing the entire length including the end caps E, E. A striped pattern P is formed. The molding body M and the end caps E, E can be made of synthetic resin such as PVC, and the striped pattern P can be made of PVC, etc., which is the same as the molding body M and the end caps E, E and has different colors and compatibility with each other. It can be molded using the formed synthetic resin tape.

The molding main body M, which has end caps E, E integrally molded in advance by injection molding or the like, is fed into pinch rolls 1 and 2, and heated rolls 3 and 4 holding a synthetic resin tape T that is continuously fed out in front. transported to. The heating rolls 3 and 4 are kept at a temperature of about 150°C, which is suitable for melting the synthetic resin tape, and the synthetic resin tape T is melted between them and the presser rolls 5 and 6 placed below to form the end cap. It is attached to the entire length of the molding body M including E and E. The adhesive tape T is compatible with the molding body M and the end caps E and E, so it can be firmly fused to them, and since it has a different color from them, it can be formed into a striped pattern P. .

In addition, in order to prevent the pattern P from peeling off and to enable beautiful edging molding, a groove having a bottom surface on the same plane is formed into which the synthetic resin tape T is inserted and welded when molding main body M and end caps E and E are molded. It is better to mold S. Also, in place of or in addition to the groove S, the entire length of the molding main body M and the end caps E, E can be made elastic.
Heat to around 50℃ and roll the outer surface with heating roll 3,
The pattern P can also be embedded and installed by invaginating the synthetic resin tape T at the same time as welding it in step 4.

Function When manufacturing a molding for a vehicle in this way, it is possible to form a striped pattern P that continues from the molding main body M to the end caps E and E, and also to form a striped pattern P that continues from the molding main body M to the end caps E and E. There are no seams between them.

Effects of the Invention As described above, according to the method for manufacturing a molding for a vehicle according to the present invention, it is possible to form a continuous striped pattern to the end cap extremely efficiently, and the decorativeness can be significantly improved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the manufacturing process of a molding for a vehicle according to the present invention, FIG. 2 is a partial cross-sectional view of the same process, and FIG. 3 is a perspective view of the molding main body.
FIG. 4 is a perspective view of a molding body integrally molded with an end cap, and FIG. 5 is a perspective view of a pattern-molded vehicle molding. M...molding body, E, E...end cap, T...synthetic resin tape, P...stripe pattern, 3, 4...heated press roll.

Claims (1)

[Scope of Claims] 1. On a molding main body integrally molded with an end cap at the end, synthetic resin tapes of different colors and mutually compatible with each other are continuously applied over the entire length from the outer surface of the end cap, including the end cap. A method for producing an end cap, which comprises welding and joining and forming a striped pattern with the welding tape. 2. After heating the entire length of the molding body including the end cap to the extent that it has elasticity, the outer surface of the molding body is pressed and indented with a pressure heating roll, and a synthetic resin tape is embedded and welded to the molding body. A method for manufacturing a molding for a vehicle according to scope 1.