Chair seat back tilt-adjusting mechanism

Details Chair seat back tilt-adjusting mechanism Chair seat back tilt-adjusting mechanism

1978-10-10

1980-08-26

Zugel, Francis K.

Chairs and seats

Back movement resiliently opposed in operating position

Back and seat adjust simultaneously

297306, A47C 300

Patent

active

042192331

ABSTRACT:
A chair seat back tilt-adjusting mechanism for use in swivel-type chairs wherein a seat back member is pivotally movable relative to a seat member. The mechanism includes a frame assembly, on which the seat back is supported, pivotally mounted on a support member, which is in turn yieldably movable relative to the seat member. Coacting nut and bolt means are secured to the support member and to the frame assembly so that operation of the nut and bolt means results in pivoting of the frame assembly about a horizontal axis with respect to the support member, thereby moving the seat back to an adjusted position.

REFERENCES:
patent: 1113833 (1914-10-01), Ruff
patent: 1986105 (1935-01-01), Foote
patent: 3966252 (1976-06-01), Albinson
patent: 4065176 (1977-12-01), Foutana
patent: 4067610 (1978-01-01), Doerr et al.

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