Self piercing cover assembly air bag

Details Self piercing cover assembly air bag Self piercing cover assembly air bag

1992-12-14

1994-05-31

Tyson, Karin L.

Land vehicles

Wheeled

Attachment

280732, B60R 2122

Patent

active

053163354

ABSTRACT:
A self piercing cover assembly for concealing an air bag restraint system in a vehicle passenger compartment has a plurality of retractable cutter blades that are attached to the underside of an invisible door beneath the instrument panel by leaf springs. When the air bag inflates, it pushes the cutter blades out against the bias of springs to cut through the instrument panel at several locations along the front edge of the door making it easier for the door to swing open. The cutter blades retract under the action of the leaf springs so that the cutting edges are below the surface of the cover assembly to protect against contact with the cutting edges after the air bag collapses.

REFERENCES:
patent: 4097064 (1978-06-01), Ikawa et al.
patent: 4989896 (1991-02-01), DiSalvo et al.
patent: 5035444 (1991-07-01), Carter
patent: 5046758 (1991-09-01), Rafferty et al.

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