Arise-assist chair

Details Arise-assist chair Arise-assist chair

1989-11-20

1991-04-30

Aschenbrenner, Peter A.

Chairs and seats

Movable bottom

Movable independently of back

297DIG10, 297DIG3, A47C 102

Patent

active

050112244

ABSTRACT:
An assist chair is provided for assisting persons in rising from a sitting to a standing position. The chair includes a frame for pivotally mounting a seat. A pair of springs attached to the seat bias the seat upwardly to assist the user to a standing position. A movable attachment point for an end of the springs distal from the seat attachment point allows the upward biasing force applied to the seat to be varied from the force which would result from a fixed attachment point for the springs.

REFERENCES:
patent: 974769 (1910-11-01), Hoff
patent: 1025915 (1912-05-01), Hoff
patent: 1698344 (1929-01-01), Mott
patent: 2539034 (1951-01-01), Ruby
patent: 3158398 (1964-11-01), Stryker
patent: 4690457 (1984-09-01), Poncy et al.
patent: 4778217 (1988-10-01), Lane
patent: 4838612 (1989-06-01), Cross

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