Chair tilt control mechanism

Details Chair tilt control mechanism Chair tilt control mechanism

1995-11-27

1997-07-22

Cranmer, Laurie K.

Chairs and seats

Back movement resiliently opposed in operating position

Adjustable resistance

297325, 2973008, 248575, A47C 300

Patent

active

056497407

ABSTRACT:
The present apparatus comprises a manually adjustable tilt control mechanism which permits adjustable control of the front to back tilt of a chair assembly on a support frame, including a chair assembly having a lowermost seat portion, a column and forwardly extending support arm, for supporting the chair seat portion, a pair of dissimilarly sized resilient blocks, disposed between the end of the support arm and the bottom side of the chair seat portion. The resilient blocks may be adjustably compressed or decompressed between the bottom of the seat portion and the support arm, to adjust the tiltability of the seat.

REFERENCES:
patent: 2184988 (1939-12-01), Collier et al.
patent: 2374350 (1945-04-01), Herold
patent: 3259431 (1966-07-01), Gale
patent: 3309137 (1967-03-01), Wiebe
patent: 3770235 (1973-11-01), Klapproth et al.
patent: 4852943 (1989-08-01), Roper
patent: 4871208 (1989-10-01), Hodgdon

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