Integral passenger restraint system

• US 6,296,277 B1
• Filed: 05/18/1998
• Issued: 10/02/2001
• Est. Priority Date: 05/18/1998
• Status: Expired due to Term

• Current Assignee: FCA US LLC (Stellantis NV)
• Original Assignee: Chrysler Corporation (Stellantis NV)
• Inventors: Larson, Michael J., Dominique, Alexander L., Bittinger, D. Scott
• Primary Examiner(s): Swann, J. J.
• Assistant Examiner(s): Bottorff, Christopher
• Application Number:
  US09/080,418
• Time in Patent Office: 1,233 Days
• Field of Search: 280/748, 280/752, 280/751, 280/728.2, 280/753, 180/90, 296/189, 296/191, 296/70
• US Class Current: 280/748
• CPC Class Codes: B60R 2021/0051 Knees
• CPC Class Codes: B60R 21/045 associated with the instrument panel or dashboard
• CPC Class Codes: B60R 21/205 in dashboards
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 takes precedence

Abstract

The present invention provides an integral passenger restraint system which has the passenger airbag system and knee bolster system integrated into one unit. The passenger airbag system of the present invention has an outer surface which is capped at opposite ends by a pair of end plates. Each end plate has a support zone and at least one crush zone. The support zone serves to cover the outer surface and encapsulate the air bag. The crush zone acts as the impact absorbing medium to absorb the impact from a vehicle passenger'"'"'s knees during a vehicle crash.

Claims

1. An integral passenger restraint system in combination with a motor vehicle, said integral passenger restraint system comprising:

a motor vehicle, said motor vehicle having a front end;

an instrument panel, said instrument panel being located internal to a passenger compartment of said motor vehicle;

a cross-car-beam located between said instrument panel and said front end;

an air bag system having an outer surface;

a pair of end plates, each of said end plates capping an opposite side of said air bag system, each of said end plate having a centrally located support zone attached to said air bag system, each said end plate having a first crush zone located planarly adjacent to said support zone, each said end plate having a second crush zone located planarly adjacent to said support zone and opposite said first crush zone, said first crush zone of each said end plate being located proximate to said cross-car-beam; and

a plurality of struts, said struts maintaining a position of said integral passenger restraint system in a fixed position after airbag deployment and prior to impact of a vehicle passenger'"'"'s knees, said struts supporting said integral passenger restraint system independently of said cross-car-beam.

2. The integral passenger restraint system as claimed in claim 1, wherein said first crush zone and said second crush zone each have a plurality of apertures therein, said apertures allowing said first crush zone and said second crush zone to crush at a predetermined rate and predetermined crush force in response to a vehicle crash condition.

3. The integral passenger restraint system as claimed in claim 2, wherein said crush force is less than 2250 lbs. when said vehicle crash condition occurs when said vehicle is traveling under 30 mph.

4. The integral passenger restraint system as claimed in claim 1, wherein said first crush zone is positioned a predetermined distance away from said cross-car beam.