Supports – Stand – Adjustable vertically
Patent
1987-03-11
1988-11-22
Ramirez, Ramon O.
Supports
Stand
Adjustable vertically
248157, F16M 1300
Patent
active
047860243
ABSTRACT:
In a sprung seat having a scissors-type support assembly with mutually crossing arms for supporting a vertically movable seat portion relative to a base frame, a spring operable to urge the seat portion upwardly thereby to support the weight of the seat occupant acts by way of a slider on a cam lever non-rotatably connected to a support arm. The slider is adjustable in respect of its length for the purposes of height adjustment of the seat portion.
REFERENCES:
patent: 3473776 (1969-10-01), Costin
patent: 3700203 (1972-10-01), Adams
patent: 3826457 (1974-07-01), De Longchamp
patent: 4085962 (1978-04-01), Wahls
patent: 4387874 (1983-06-01), Boisset
patent: 4520986 (1985-06-01), Liljequist et al.
patent: 4648575 (1987-03-01), Kawade
patent: 4648578 (1987-03-01), Sakamoto
Grammer Sitzsysteme GmbH
Ramirez Ramon O.
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