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Airbag sub-module having fabric envelope with horn switch

  • US 5,772,239 A
  • Filed: 06/24/1996
  • Issued: 06/30/1998
  • Est. Priority Date: 06/24/1996
  • Status: Expired due to Fees
First Claim
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1. A supplemental restraint sub-module for assembly with a vehicle steering wheel assembly forming a well portion and having a mounting plate for enclosing the well portion, the sub-module comprising:

  • an air bag;

    an inflator positioned inside of said air bag;

    at least one fastener for fastening said sub-module to the steering wheel assembly;

    a fabric envelope having a deployment failure area, said envelope configured to enclose said air bag and said inflator when said air bag is in a folded uninflated condition, wherein said enclosed air bag and inflator are configured for insertion into the steering wheel assembly well portion, said deployment failure area fails upon inflation of said air bag allowing said air bag to expand outside of said sub-module; and

    a membrane horn switch positioned inside said fabric envelope, said horn switch configured to deform upon pressing on a portion of the vehicle steering wheel causing current to flow to a horn.

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