Air bag cover having a hidden tear seam

Details Air bag cover having a hidden tear seam Air bag cover having a hidden tear seam

1997-11-20

2000-04-18

Dickson, Paul N.

Land vehicles

Wheeled

Attachment

280731, B60R 2116

Patent

active

06050594&

ABSTRACT:
A method and apparatus for making a thermoplastic air bag cover having a hidden tear seam. A molten thermoplastic is injected into a mold cavity of a mold having a shape defining the air bag cover. An insert having a shape defining the tear seam is extended into the mold cavity before the molten plastic completely solidifies. The resulting air bag cover is cooled to a temperature beneath the softening point of the plastic. The completed air bag cover is then removed from the mold. The thickness of the air bag cover at the tear seam is within a range of 0.2 to 0.4 millimeters.

REFERENCES:
patent: 4120516 (1978-10-01), Takamatsu et al.
patent: 5013065 (1991-05-01), Kreuzer
patent: 5149479 (1992-09-01), Nakajima
patent: 5320380 (1994-06-01), Hamada et al.
patent: 5335935 (1994-08-01), Proos et al.
patent: 5342090 (1994-08-01), Sobczak et al.

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