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Exterior airbag cushion for vehicle and device having the same

  • US 7,967,098 B2
  • Filed: 06/05/2009
  • Issued: 06/28/2011
  • Est. Priority Date: 11/10/2008
  • Status: Expired due to Fees
First Claim
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1. An exterior airbag cushion for a vehicle comprising:

  • a cushion unit that surrounds a forward portion of a bumper upon a vehicle collision; and

    a shape memory wire coupled to the cushion unit and configured to extend along an outer edge of the cushion unit and thus deploy the cushion unit, wherein the shape memory wire is restored to a memorized shape corresponding to a shape of the cushion unit which has expanded fully when a temperature in the cushion unit equals or exceeds a predetermined temperature;

    wherein the shape memory wire is enclosed in the cushion unit by a tube made of a flexible material.

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