Chairs and seats – Movable bottom – Movable independently of back
Patent
1993-03-25
1994-05-31
Brown, Peter R.
Chairs and seats
Movable bottom
Movable independently of back
2972841, 29745263, B60N 202
Patent
active
053163710
ABSTRACT:
An adjustable automotive vehicle seat is equipped with a height adjust mechanism that includes a U-shaped frame having laterally spaced side members and a round front cross member that is mounted on the front ends of the side members for rotation about its centerline. A plurality of bow shaped leaf springs are spaced across the width of the seat with their front ends secured to the round front cross member. The rear ends of the leaf springs are secured to a slidable rear cross member. An electrically powered, reversible ball screw actuator translates the rear cross member in the longitudinal direction so that the height of the seat is adjusted by adjusting the curvature of the bow shaped leaf springs.
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patent: 5022709 (1991-06-01), Marchino
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Brown Peter R.
Jr. Milton Nelson
McCord Winn Textron
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