Seat suspension apparatus

Details Seat suspension apparatus Seat suspension apparatus

1979-04-03

1980-12-30

Foss, J. Franklin

Supports

Resilient support

Adjustable preloading of resilient means

248593, 296 63, F16M 1300

Patent

active

042418941

ABSTRACT:
A seat suspension apparatus comprises a pair of parallel link assemblies and a pair of balance springs. In order to reduce the elevation of the seating surface relative to a support base and to assure a stabilized suspension when the seating surface is depressed to a relatively low elevation, one of the parallel link assemblies is coupled with the other at a given angle therebetween. The resilience of the balance springs counteracts the load on the seat to maintain the pair of parallel link assemblies at a balanced position which depends on the magnitude of the load. The resilience can be adjusted through an eccentric cam which is operated by a lever located on one side of the seat. Thus the user can adjust the elevation of the seat by turning the lever while looking forward, avoiding the need for assuming a slouch position.

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