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Vehicle seat having a seat proper of adjustable height

  • US 6,578,920 B2
  • Filed: 06/07/2001
  • Issued: 06/17/2003
  • Est. Priority Date: 06/09/2000
  • Status: Expired due to Fees
First Claim
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1. A vehicle seat comprising a back and a seat proper which extends in a longitudinal direction between a rear end close to the back and a front end remote from the back, said seat proper comprising a rigid frame supported by a raising mechanism for moving the seat proper upwards or downwards, the raising mechanism being controlled by an actuator comprising a tube having a nut fixed at one end thereof and having a screw rotated by a motor and co-operating with the nut, the screw of the actuator being provided with a free end situated inside the tube of the actuator, the raising mechanism further comprising an elastically-deformable member for assisting the motor of the actuator while moving the rigid frame upwards, wherein said elastically-deformable member is housed inside the tube of the actuator between the free end of the screw of the actuator and a support element secured to the tube of the actuator.

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