Adjustable seat-back mechanism

Details Adjustable seat-back mechanism Adjustable seat-back mechanism

1975-09-15

1977-03-15

Britts, Ramon S.

Joints and connections

Articulated members

Lockable at fixed position

248408, 297353, 403325, F16B 714, A47C 100

Patent

active

040121585

ABSTRACT:
An adjustable seat-back mechanism for use with a secretarial chair or the like to allow vertical adjustment of the chair's seat back from among a series of discrete vertical locations. The mechanism includes a bracket attached to the seat back, a pivotal lever attached to the bracket and a mounting bar with edge notches that are engageable by the lever to define the discreet vertical locations. The lever is easily operated to allow quick and effortless movement of the seat-back.

REFERENCES:
patent: 848001 (1907-03-01), Berninghaus
patent: 1726850 (1929-09-01), McComas
patent: 3309050 (1967-03-01), Blink et al.
patent: 3460794 (1969-08-01), Colantti
patent: 3854772 (1974-12-01), Abrahamson et al.

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