Land vehicles – Wheeled – Attachment
Patent
1989-01-30
1992-01-14
Rice, Kenneth R.
Land vehicles
Wheeled
Attachment
280743, 89 114, B60R 2116
Patent
active
050803930
ABSTRACT:
A method and apparatus are disclosed for instantly forming an air bag deployment opening in an auto interior trim panel structure such as an instrument panel or steering wheel cover just prior to inflation of the air bag. A delineated pattern of concentrated energy is instantaneously applied to the inside of the trim structure as by ignition of a segment of detonating cord to fracture a section of the trim panel in a required door shape just before the air bag is inflated. The air bag, stored behind the trim panel, engages and pushes open the door so formed in the trim panel when activated, and is able to be deployed through the resulting opening. The trim panel may therefor be free from any exteriorly visible markings defining a deployment door until deployment actually occurs.
REFERENCES:
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patent: 3632136 (1972-01-01), Foltz
patent: 3640546 (1972-02-01), Braun
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patent: 4717096 (1988-01-01), Labarre et al.
patent: 4810005 (1989-03-01), Fohl
Bauer David J.
Dixon, Jr. Alfred R.
Benefiel John R.
Finlay Tamara L.
Rice Kenneth R.
Tip Engineering Group, Inc.
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