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Roof airbag apparatus

  • US 10,604,103 B2
  • Filed: 12/11/2017
  • Issued: 03/31/2020
  • Est. Priority Date: 12/12/2016
  • Status: Active Grant
First Claim
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1. A roof airbag apparatus comprising:

  • a roof airbag cushion connected to an inflator, the roof airbag cushion configured to be disposed in a first folded state in a panorama roof, and to be inflated in a second expanded state and deployed as gas is supplied from the inflator; and

    a constraint connected to the roof airbag cushion configured to pull downward a distal end portion of the roof airbag cushion as it is being inflated to prevent reverse deployment of the roof airbag cushion,wherein;

    the roof airbag cushion comprises a leading part configured to be inflated and deployed by the gas supplied from the inflator; and

    the leading part comprises;

    a first chamber portion configured to be deployed toward both sides from a gas introduction part;

    a second chamber portion connected with the first chamber portion, and configured to be deployed from the first chamber portion in a direction opposite to the gas introduction part;

    a third chamber portion connected with the second chamber portion, configured to be deployed from the second chamber portion in a direction facing the gas introduction part, and disposed inside the second chamber portion; and

    a fourth chamber portion connected with the third chamber portion, configured to be deployed from the third chamber portion in the direction opposite to the gas introduction part, and disposed inside the third chamber portion.

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