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MULTI-CHAMBER AIRBAGS

  • US 20150158452A1
  • Filed: 12/07/2013
  • Published: 06/11/2015
  • Est. Priority Date: 12/07/2013
  • Status: Active Grant
First Claim
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1. An airbag assembly comprising:

  • a housing configured to be mounted in a dashboard of a vehicle at a first position;

    an inflator; and

    an airbag cushion that comprises;

    a first cushion portion that defines a first inflatable chamber that is configured to receive inflation gas from the inflator to expand the first cushion portion from a compact state to a deployed state, wherein the first cushion portion is configured to deploy from the housing when the housing is mounted in the dashboard of the vehicle at the first position, and wherein the first cushion portion is configured to receive a torso of a vehicle occupant when the vehicle occupant moves from a vehicle occupant position primarily in a forward direction relative to the vehicle;

    a second cushion portion connected to the first cushion portion, wherein the second cushion portion defines a second inflatable chamber that is configured to receive inflation gas from the first inflatable chamber to expand the second cushion portion from a compact state to a deployed state to cover a second portion of the dashboard that is closer to a center of a vehicle than is the first portion of the dashboard; and

    at least one discrete vent that is internal to the airbag cushion and provides fluid communication between the first and the second inflatable chambers to permit inflation gas to flow freely from the first inflatable chamber to the second inflatable chamber and to permit inflation gas to flow freely from the second inflatable chamber to the first inflatable chamber.

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