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Retractor with adjustable load limiting levels

  • US 5,607,118 A
  • Filed: 08/11/1995
  • Issued: 03/04/1997
  • Est. Priority Date: 08/11/1995
  • Status: Expired due to Fees
First Claim
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1. A seat belt retractor (20) for protecting an occupant during a vehicle impact comprising:

  • a rotating spool or real (24),seat belt webbing (31) wound about the spool and adapted to extend about the occupant;

    first locking means (210, 237, 230,

         2201) operatively connected to the spool for initially preventing the rotation of the spool,first means (90,

         100) associated with the spool and operable after the spool has been locked, for enabling the spool to rotate so that the webbing can be removed therefrom, after a predetermined load, in excess of a first level, has been applied to the belt webbing, and for generating a determinable reaction force level on the belt opposing occupant motion;

    second means (270, 273, 275,

         250) for actively varying the reactive force level.

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