Sprung vehicle seat

Details Sprung vehicle seat Sprung vehicle seat

1981-11-12

1984-07-24

Machado, Reinaldo P.

Supports

With condition responsive control means

248430, 248631, 297347, 297339, A47C 330

Patent

active

044614446

ABSTRACT:
A sprung vehicle seat which adjusts to a preset height, even when accommodating people of different weights, and which also permits adjustment of the preset height, is supported by a gas spring. An actuator which is linearly movable when there is a change in the seat height can cooperate with a switching mechanism, which includes a valve spaced apart from a switch, to control the volume of air in the gas spring. A holder carrying either the switching mechanism or the actuator is pivotably mounted on a slider which is linearly movable unless it is locked into place. When the holder is in a first angular position, the actuator and the switching mechanism are separated to avoid unnecessary actuation of the gas spring during bouncing movements, and when it is in a second angular position the actuator and the switching mechanism are moved toward each other so that they can cooperate to adjust the seat to the preset height. A manually operable three-stage actuating mechanism is operative during a first actuating stage to pivot the holder into its second position, during a second stage to unlock the slider, and during a third stage to shift the slider from one position to another so as to change the preset height. The actuating mechanism has only a single lever, which is movable in two different modes (such as rotation about its axis and rotation about a line perpendicular to the axis) to accomplish the three actuating stages.

REFERENCES:
patent: 3150855 (1964-09-01), Carter
patent: 3325136 (1967-06-01), Rodke et al.
patent: 3638897 (1972-02-01), Harder, Jr. et al.
patent: 3951373 (1976-04-01), Swenson et al.
patent: 3954245 (1976-05-01), Costin
patent: 3999800 (1976-12-01), Penzotti
patent: 4148518 (1979-04-01), Wilbeuf
patent: 4213594 (1980-07-01), Pietsch et al.
patent: 4264050 (1981-04-01), Wahls

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