Folding chair with continuously variable self-balanced tilting a

Details Folding chair with continuously variable self-balanced tilting a Folding chair with continuously variable self-balanced tilting a

1991-06-13

1992-10-13

Cranmer, Laurie K.

Chairs and seats

Collapsible chair; i.e., relatively folding bottom, back,...

With means to hold chair in plural operative configurations

297 50, 297316, 297317, A47C 400

Patent

active

051544725

ABSTRACT:
A chair having a seating unit and two pairs of legs made slidably integral by couplings attached to the seating unit and designed to engage the relevant inserts located in such first pair of legs, which are made to slide in relation to the second pair of legs by further couplings located in further inserts provided on the second pair of legs, so as the couplings are designed to allow substantially continuous tilt adjustment of the seat and of the backrest relative to the seat, as a result of the relevant pushing action exerted by the user while assuming various positions that are balanced by the push up action.

REFERENCES:
patent: 780010 (1905-01-01), Mettler
patent: 780771 (1905-01-01), Axelrad
patent: 2216316 (1940-10-01), Karish
patent: 4504090 (1985-03-01), Goldman
patent: 4861106 (1989-08-01), Sondergeld

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