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Airbag inflation-controlling member

  • US 5,308,113 A
  • Filed: 10/09/1992
  • Issued: 05/03/1994
  • Est. Priority Date: 10/09/1992
  • Status: Expired due to Term
First Claim
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1. A vehicle airbag comprising an inflatable bag and an inflation-controlling member which is coupled to said bag;

  • said bag including chamber-defining portions defining a chamber which is filled with inflation fluid to inflate said airbag during an inflation process, said bag being subjected to initial forces during initial stages of the inflation process, intermediate forced during intermediate stages of the inflation process, and final forces during final stages of the inflation process;

    said inflation-controlling member extending through said chamber during the inflation process and controlling the shape of said bag;

    said inflation-controlling member including a releasable connection and a stretchable section;

    said releasable connection including means for remaining intact during the initial stages of the inflation process so that said inflation-controlling member extends to an initial length and so that said bag assumes an initial shape during initial stages of the inflation process and forextending said inflation-controlling member from said initial length to an intermediate length greater than said initial length so that said bag assumes an intermediate shape during intermediate stages of the inflation process; and

    said stretchable section including means for stretching said inflation-controlling member from said intermediate length to a final length greater than said intermediate length so that said bag assumes a final shape.

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