METHOD OF PREWEAKENING INTERIOR TRIM COVER FOR AUTOMOBILES FOR AIRBAG DEPLOYMENT OPENING

摘要

PPROBLEM TO BE SOLVED: To provide a method of preweakening the inside of an interior trim piece cover for automobiles which covers an airbag device. PSOLUTION: By using a laser beam 14, the opening for airbag deployment of an interior trim part can be formed by extremely accurately scoring when an airbag is deployed. The laser beam impinges the inside surface of the cover to form a groove scoring 20 or spaced perforations to form a preweakening pattern. A robot arm may be used to move a laser generator 12 so as to form the preweakening pattern. The laser beam can be controlled in accordance with sensed conditions to perform accurate preweakening, and may also be used to trim substrate panels and perform other cutting operations. PCOPYRIGHT: (C)2008,JPO&INPIT