Airbag cushion and mounting therefor

Details Airbag cushion and mounting therefor Airbag cushion and mounting therefor

1997-05-06

1999-05-11

Dickson, Paul N.

Land vehicles

Wheeled

Attachment

2807431, B60R21/30

Patent

active

059019794

ABSTRACT:
An airbag cushion has a deployment tube connected at its inner end to a backing plate securing an inflator and at its outer end to a cushion-shaping enclosure. The periphery of the cushion-shaping enclosure is attached there about to a boundary wall which extends inward to the backing plate at a location surrounding the inner end of the deployment tube. The boundary wall defines an aspirated-air chamber surrounding the tube. As the tube and cushion-shaping enclosure are inflated, the enclosure pulls the boundary wall out of the canister creating a vacuum in the aspirated-air chamber. A one-way valve in the backing plate passes aspirated air into the aspirated-air chamber. A port connects the cushion-shaping enclosure to the aspirated-air chamber to pressurize the aspirated-air chamber at the end of inflation. The one-way valve blocks escape of the pressure.

REFERENCES:
patent: 3762741 (1973-10-01), Fleck et al.
patent: 3843150 (1974-10-01), Harada et al.
patent: 3929350 (1975-12-01), Pech
patent: 3994506 (1976-11-01), Weman
patent: 4076277 (1978-02-01), Kuwakado et al.
patent: 5207450 (1993-05-01), Pack et al.
patent: 5338061 (1994-08-01), Nelson et al.
patent: 5542695 (1996-08-01), Hanson

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