Chairs and seats – Movable back – Tiltable
Patent
1988-07-08
1990-02-06
McCall, James T.
Chairs and seats
Movable back
Tiltable
297363, 297375, A47C 1024
Patent
active
048984248
ABSTRACT:
A spring loaded latch mechanism for controlling tilting movement of a seat back relative to a seat frame to which it is pivoted, includes an elongated rod having one toothed face and only one end connected to the seat, a latch frame connected to the seat and supporting the other end of the rod for reciprocation therewithin, a pawl adapted to releasably engage the teeth, a manually-operated handle, and a cam interconnecting the handle and the pawl to drive the pawl into and from engagement. In one embodiment similar latch mechanisms are provided, one on each side of the seat with the mechanism opposite to the handle being a slave having a free-floating cam plate and a lever plate driven by the operator, actuation of the slave cam plate resulting from the lever plate being rotated thereagainst independently of the master latch mechanism on the handle side.
REFERENCES:
patent: 535999 (1895-03-01), Sargent
patent: 2066901 (1937-01-01), Preble
patent: 2745471 (1956-05-01), Chappuis
patent: 3001821 (1961-09-01), Marechal
patent: 3133764 (1964-05-01), Naef
patent: 3870269 (1975-03-01), Werner et al.
patent: 4243264 (1981-01-01), Bell
patent: 4245866 (1981-01-01), Bell et al.
patent: 4279442 (1981-07-01), Bell
patent: 4372610 (1983-02-01), Bell
patent: 4705319 (1987-11-01), Bell
Fisher Dynamics Corporation
McCall James T.
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