Seat

Details Seat Seat

1988-07-27

1989-06-27

McCall, James T.

Chairs and seats

Movable bottom

Tiltable

297 90, 297329, A47C 102

Patent

active

048423335

ABSTRACT:
In a seat having a support frame consisting of a seat portion frame and a backrest portion frame, the backrest portion frame is of a generally L-shaped configuration, with a first limb thereof extending under the seat portion frame. The first limb of the L-shape carries a pivot axis means which is disposed slidably in a pair of rails fixed at the underside of the seat portion frame while the first limb of the L-shaped backrest portion frame is further guided in a second pair of rails at another position spaced from the first pair of rails in such a way that upon forward movement of the seat portion frame the upper end of the backrest portion frame moves in the opposite direction and also moves downwardly, thereby increasing the angle of inclination of the backrest portion, and vice-versa.

REFERENCES:
patent: Re30648 (1981-01-01), Ohlrogge
patent: 2925122 (1960-02-01), Winick
patent: 2976868 (1961-03-01), Weissenberg
patent: 3039821 (1962-06-01), Black et al.
patent: 3284134 (1966-11-01), Malitte
patent: 3913152 (1975-10-01), Quackenbush
patent: 4167288 (1979-09-01), Kiang
patent: 4362336 (1982-12-01), Zapf
patent: 4765679 (1988-08-01), Lanuzzi

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