Seat lifter

Details Seat lifter Seat lifter

1987-02-03

1988-08-30

Dorner, Kenneth J.

Chairs and seats

Movable bottom

Tiltable

248397, 248421, 297329, 297340, 297345, A47C 1032, A47C 320

Patent

active

047671572

ABSTRACT:
The seat lifter according to the invention includes a front and rear links supporting the upper bracket member and the upper bracket member has a first upper bracket supporting a seat cushion of the seat and a second upper bracket supporting a seat back of the seat. Thus, the seat back and seat cushion of the seat are respectively moved in the independent state. Particularly, a pair of second pivoting member respectively pivoting the front and rear links on the first upper bracket positions approximately in a rear direction in respect of a pair of first pivoting member and a pair of third pivoting member respectively pivoting the front and rear links on said second upper bracket positions approximately in an upper direction in respect of said first pivoting. In accordance with lifting the seat cushion by rotating the both links around the first pivoting member, the seat back moves in a forward direction and the size of the seat cushion is minimized.

REFERENCES:
patent: 3337267 (1967-08-01), Rogers, Jr.
patent: 3869172 (1975-03-01), James et al.
patent: 4529159 (1985-07-01), Terada et al.

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