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Automotive seat—seat back with integrated protective device and process to prevent injuries caused by accident

  • US 6,478,373 B1
  • Filed: 08/17/2000
  • Issued: 11/12/2002
  • Est. Priority Date: 08/17/1999
  • Status: Expired due to Fees
First Claim
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1. A seat back for an automotive seat comprising:

  • a bottom seat-back part, connectable to a seat part;

    a top seat-back part connected to said bottom seat-back part for pivotal movement in an angular range relative to said bottom seat-back part out of a position of standard use, around an axis in said seat back that runs perpendicular to a longitudinal axis of the vehicle, and along a pivot direction pointing in the direction of vehicle travel;

    a torque generating means for generating a torque operating on said top seat-back part in said pivot direction, regardless whether the automotive seat is occupied; and

    detecting means for detecting a rear-end impact, which is actively linked with said torque-generating means in such a way, that said torque-generating means is activated in the event of a rear-end impact and the swinging movement is started.

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