Method of making an air bag cover

Details Method of making an air bag cover Method of making an air bag cover

1997-11-20

1999-02-09

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Plural sequential shaping or molding steps on same workpiece

26432811, 425577, 425468, 425DIG37, B29C 4517

Patent

active

058689885

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: 4184835 (1980-01-01), Talbot
patent: 4820149 (1989-04-01), Hatakeyama et al.
patent: 5149479 (1992-09-01), Nakajima
patent: 5183615 (1993-02-01), Zushi
patent: 5320380 (1994-06-01), Hamada et al.
patent: 5334340 (1994-08-01), Zushi
patent: 5335935 (1994-08-01), Proos et al.
patent: 5342086 (1994-08-01), Harris et al.
patent: 5484273 (1996-01-01), Parker et al.
patent: 5618485 (1997-04-01), Gajewski
patent: 5632914 (1997-05-01), Hagenow et al.
patent: 5650115 (1997-07-01), Proos et al.

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