Convertible chair

Details Convertible chair Convertible chair

1985-11-20

1988-06-21

McCall, James T.

Chairs and seats

Legrest or footrest interconnected to move relative to...

With means to move bottom relative to and concurrently with...

297330, 297DIG10, A47C 102

Patent

active

047521007

ABSTRACT:
Convertible chair of the kind consisting in a seat, a back and a foot-rest, each mobile with respect to the other and all together, characterized in that in a fixed base that assures the stability of the chair on the ground, is lodged a sole jack and all of the connecting rods that control the tilting of the seat itself, of its back and of the foot-rest, and the operation of the piston of this sole jack controls a main lever that sequentially exerts its action to tilt the back, then, either separately or simultaneously, to tilt the seat, and then, either separately or simultaneously, to tilt the foot-rest; this moving of the main lever itself results from direct contact or through the intermediary of secondary levers, with stops activating the moving of levers, each interdependent on the respective rotating axles of the three parts of the chair, in one direction or the other.

REFERENCES:
patent: 3121589 (1964-02-01), Schliephacke
patent: 4231614 (1980-11-01), Schaffer
patent: 4249774 (1981-02-01), Andreasson
patent: 4333681 (1982-06-01), Nelson

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