Variable back adjuster for chairs

Details Variable back adjuster for chairs Variable back adjuster for chairs

1982-05-06

1985-01-22

Lyddane, William E.

Chairs and seats

Laterally folding or collapsing back

One-piece bottom and back

108 9, 297361, A47C 1024

Patent

active

044947950

ABSTRACT:
An adjustor for chairs with tilting backs and the like, comprises a threaded spindle connected with the chair back, and a gear wheel threadedly mounted on the spindle. The gear wheel is retained in a housing attached to a relatively stationary portion of the chair, such that when the chair back is tilted, the spindle rotates the gear wheel in the housing. A pawl is shifted into and out of engagement with the gear wheel to selectively lock the chair back in a wide variety of different angular positions.

REFERENCES:
patent: 964394 (1910-07-01), Coddington
patent: 1302212 (1919-04-01), Phillips
patent: 2579305 (1951-12-01), Cushman
patent: 3046055 (1962-07-01), Martens
patent: 3062584 (1962-11-01), Galla
patent: 3127788 (1964-04-01), Martens
patent: 3246868 (1966-04-01), Martens et al.
patent: 3339975 (1967-09-01), Posh
patent: 3350135 (1967-10-01), Martens
patent: 3356411 (1967-12-01), Homier et al.
patent: 3369841 (1968-02-01), Heyl, Jr.
patent: 3398986 (1968-08-01), Homier
patent: 3603640 (1971-09-01), Doerner
patent: 3799485 (1974-03-01), Wolters
patent: 3799486 (1974-03-01), Mohr
patent: 3991965 (1976-11-01), Westover
patent: 4234152 (1980-11-01), Browse
patent: 4390206 (1983-06-01), Faiks et al.

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