Method of manufacturing an air bag cover

Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Making hole or aperture in article

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Details

264255, B29C 4514, B29C 4516

Patent

active

057500622

ABSTRACT:
A cover for an air bag comprising a lid portion and mounting side wall portions having upper and lower ends, the upper ends connected to the lid portion and the lower ends adapted for connection to either a fixed part of a vehicle or another part. The lid portion has a weakened line which ruptures when the air bag is deployed. The cover is an integral structure. The lid comprises a flexible and soft layer whereas the mounting side walls comprise a rigid layer and both layers are united at their points of contact or contact regions.
A method for manufacturing the above described cover by injecting thermoplastic synthetic resin elastomer material through a first entry point(s) into a first mold cavity of an injection-mold for molding the lid portion and injecting thermoplastic synthetic resin material through a second entry point(s) into a second mold cavity of an injection-mold for molding the mounting side wall portions, the first and second molds being in communication with each other.

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