Tilting control assembly for chair

Details Tilting control assembly for chair Tilting control assembly for chair

1992-10-13

1994-09-20

Bradley, P. Austin

Chairs and seats

Back movement resiliently opposed in operating position

Constantly oriented during up-and-down movement

297304, 29735412, A47C 102

Patent

active

053483723

ABSTRACT:
The present invention provides a tilting control assembly for a chair. The chair comprises a support device, a seat supported above the support device, and a seat back arranged behind the seat to tilt rearwardly. The tilting control assembly comprises a tilting control spring device for elastically supporting the seat back against rearward tilting thereof via a load applying member, a displacing mechanism responsive to a downward load applied to the seat for causing the load applying member to move relative to the spring device, and a lock device for preventing the load applying member from moving reversely relative to the spring device when the seat back is rearwardly tilted.

REFERENCES:
patent: 4200332 (1980-04-01), Brauning
patent: 4479679 (1984-10-01), Fries
patent: 4494795 (1985-01-01), Roossien
patent: 4938531 (1990-07-01), Fogarassy
patent: 4962962 (1990-10-01), Machate
patent: 5046780 (1991-09-01), Decker et al.
patent: 5080318 (1992-01-01), Takamatsu et al.
patent: 5160184 (1992-11-01), Faiks

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