Vehicle seats

Details Vehicle seats Vehicle seats

1978-11-20

1980-04-15

Zugel, Francis K.

Supports

With condition responsive control means

248588, 318484, A47C 330

Patent

active

041980255

ABSTRACT:
A vehicle seat has a seat part mounted on a base part by a suspension which includes a gas spring. Valve means are provided to control the seat ride position by controlling the entry and exit of compressed gas into and out of the gas spring. The difference between the actual ride position and a selected ride position of the seat is sensed, and a control circuit is used actuating the valve means to raise or lower the seat to reduce this difference to zero. In order to prevent seat vibration, such as is caused by passage of a vehicle over rough terrain, from continually causing actuation of the valve means, the control circuit is provided with desensitizing means.

REFERENCES:
patent: 2545343 (1951-03-01), Conviser
patent: 3343775 (1967-09-01), Stephanson
patent: 3606233 (1971-09-01), Scharton et al.
patent: 3701499 (1972-10-01), Schubert et al.
patent: 3787025 (1974-01-01), Sturhan
patent: 3954245 (1976-05-01), Costin

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