Suspension device for seat

Details Suspension device for seat Suspension device for seat

1989-03-16

1991-04-30

Ramirez, Ramon O.

Supports

Resilient support

Including additional energy absorbing means, e.g., fluid or...

248578, 248588, 248608, 297345, F16M 1300

Patent

active

050111094

ABSTRACT:
A suspension device for seat which includes a torsion bar interposed between an upper movable frame and a lower base frame, the torsion bar being adapted to bias the upper movable frame upwardly, and a spring provided on a shock absorber which is extended between the upper movable and lower base frames. The repercussive force of the suspension device is increased by the torsion bar and spring, against a downward load applied on the seat.

REFERENCES:
patent: 2680472 (1954-06-01), Hempe, Jr.
patent: 3006593 (1961-10-01), Plate
patent: 3608855 (1971-09-01), Osenberg
patent: 3756552 (1973-09-01), Wilhelms
patent: 3853296 (1974-12-01), Forssell
patent: 4640488 (1987-02-01), Sakamoto
patent: 4729539 (1988-03-01), Nagata
patent: 4784434 (1988-11-01), Iwami

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