Seat suspension with quick height adjustment

Details Seat suspension with quick height adjustment Seat suspension with quick height adjustment

1991-11-27

1993-01-05

Talbott, David L.

Supports

Resilient support

Adjustable preloading of resilient means

248157, 2481621, 248409, 248610, 297307, 297345, F16M 1300

Patent

active

051763567

ABSTRACT:
A seat suspension having a stationary support that can be mounted on a vehicle. An intermediate frame is mounted on the stationary support for vertical sliding movement relative thereto by a spring suspension. A seat support frame is mounted on the intermediate frame for upward or downward movement relative thereto. A ratchet assembly interconnects the seat support frame and the intermediate frame and includes ratchet members on one of the frames and a pawl member on the other of the frames. A pawl release, including a biasing spring and a pawl actuating member, is provided to allow the support frame to be moved from the lower to any intermediate upper position and create an impulse at each position without need to activate said activating member. The activating member is operative to selectively move the pawl to a nonengagement position.

REFERENCES:
patent: 1488300 (1924-03-01), Thompson
patent: 1826643 (1931-10-01), Anderson
patent: 3291525 (1966-12-01), Fritzmeier
patent: 3326603 (1967-06-01), Lehner
patent: 3572828 (1971-03-01), Lehner
patent: 3705745 (1972-12-01), Ambrosius
patent: 3861637 (1975-01-01), DeLongchamp
patent: 3954298 (1976-05-01), Lowe
patent: 4186963 (1980-02-01), Koutsky
patent: 4662597 (1987-05-01), Uecker et al.
patent: 4817908 (1989-04-01), Hanlon et al.
patent: 4838514 (1989-06-01), Hill

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