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Magnetically controlled retractor

  • US 5,538,098 A
  • Filed: 05/18/1995
  • Issued: 07/23/1996
  • Est. Priority Date: 05/18/1995
  • Status: Expired due to Term
First Claim
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1. A device comprising:

  • spool means for storing a seat belt wound on said spool means, said spool means being rotatable about an axis in belt withdrawal and belt retraction directions;

    a ratchet wheel fixed for rotation with said spool means;

    movable pawl means having a blocking position for blocking said ratchet wheel and said spool means against rotation in the belt withdrawal direction and a release position for permitting rotation of said ratchet wheel and said spool means in the belt withdrawal direction;

    a permanent magnet attached to said pawl means for movement with said pawl means; and

    magnetic control means for controlling movement of said permanent magnet and said pawl means between the release and blocking positions, said magnetic control means including a first magnetic biasing means for biasing said permanent magnet and said pawl means toward the blocking position, and a second magnetic biasing means for biasing said permanent magnet and said pawl means toward the release position.

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