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Seat belt tightening system adapted to be mounted on an adjustable seat

  • US 4,925,212 A
  • Filed: 04/10/1989
  • Issued: 05/15/1990
  • Est. Priority Date: 04/19/1988
  • Status: Expired due to Fees
First Claim
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1. A seat belt tightening system adapted to be used in conjunction with a vehicle seat whose position can be adjusted, comprising:

  • a deceleration sensor mounted on a vehicle body for detecting deceleration exceeding a threshold level indicative of a vehicle crash;

    a drive unit mounted on said vehicle body for producing drive power in response to detection of deceleration exceeding said threshold level by said deceleration sensor;

    a seat belt tightening unit mounted on said vehicle seat for applying tension to a seat belt with said drive power supplied from said drive unit; and

    drive power transmitting means for transmitting said drive power from said drive unit to said seat belt tightening unit, said drive power transmitting means being provided with coupling means for transmitting said drive power from said drive unit to said seat belt tightening unit without interfering with adjustment movement of said seat.

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