Airbag cover assembly and method of forming same

Details Airbag cover assembly and method of forming same Airbag cover assembly and method of forming same

B - Operations, Transporting

60

R

B60R 21/20 (2006.01) B29C 33/42 (2006.01) B29C 37/00 (2006.01) B29C 44/12 (2006.01) B29C 70/08 (2006.01)

Patent

CA 2076756

An airbag cover assembly (10) for the passenger side (12) of an automobile. The assembly (10) includes an exterior skin (18), a pair of underlying sub-assemblies (20), each including a U-shaped galvanized steel strip (22), a short nylon scrim (24) and a long glass mat (26) sandwiched therebetween and extending therefrom such that a narrow space (36) exists between adjacent edges of the glass mats (26). A weakening notch (40) is formed across the inside surface of the exterior skin (18) along the center line of the narrow space (36). A low density polyurethane foam (28) is injected into a foaming tool (42) cavity (14) bearing the skin (18) and subassemblies (20). When cured, the foam (28) covers the nylon scrims (24) and glass mats (26) and becomes immersed throughout the interstices of each, serving as the body of the final assembly. The glass mats (26) prevent fragmentation of the low density foam (28) upon deployment of the airbag (16).

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