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Seat adjuster for vehicle seat

  • US 10,640,016 B2
  • Filed: 05/03/2018
  • Issued: 05/05/2020
  • Est. Priority Date: 05/03/2017
  • Status: Active Grant
First Claim
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1. An occupant support comprisinga vehicle seat including a seat bottom, a seat back arranged to extend upwardly away from the seat bottom, and a recline unit arranged to extend between and interconnect the seat back to the seat bottom to cause the seat back to pivot relative to the seat bottom between an upright-use position in which a first angle is formed between the seat back and the seat bottom and a forward-incline position in which a relatively smaller angle is formed between the seat back and the seat bottom,a foundation coupled to the vehicle seat and adapted to interconnect the vehicle seat to a floor of a vehicle, the foundation including a slide unit configured to allow selective back and forth sliding of the vehicle seat along a longitudinal axis relative to the floor between a rear position and a medial position which is forward of the rear position, and a height-adjust unit configured to allow selective up-and-down movement of the vehicle seat above the floor between a lowered position in which the vehicle seat is a first height above the floor and a raised position in which the vehicle seat is a second relatively greater height above the floor, andan egress system coupled to the foundation and configured to change from a seat mode in which the height-adjust unit moves the vehicle seat between the lowered position and the raised position and an egress mode in which the height-adjust unit moves the vehicle seat from one of the rear position and the medial position to a forward position which is forward of both the medial and the rear position and to a third height above the floor which is greater than the first and second heights,wherein the height-adjust unit includes a front leg arranged to extend between and interconnect the vehicle seat and the slide unit, a rear leg arranged to extend between and interconnect the vehicle seat and the slide unit, and a driver configured to cause the rear leg and the front leg to move relative to the slide unit to cause the vehicle seat to move between the first height and the second height when the egress system is in the seat mode, the egress system includes a drive plate coupled to the rear leg to move with the rear leg about an axis when the egress system is in the seat mode and relative to the rear leg about the axis when the egress system in in the egress mode, the drive plate moves with the rear leg in the seat mode so as to cause movement of the vehicle seat between the lowered position and the raised position, and the rear leg is freed to move about the axis relative to the drive plate and the driver in the egress mode so as to allow movement of the vehicle seat to the third height and to the forward position.

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