Aeronautics and astronautics – Aircraft control
Patent
1982-12-30
1985-08-06
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft control
244213, 244221, 244233, 74471R, 74480R, 74568R, 91382, B64C 1332, B64C 1338
Patent
active
045330964
ABSTRACT:
A control assembly (50) for deployment of aircraft wing flaps is comprised of an input cam mechanism (54), a feedback cam mechanism (56) and a summing lever member (58) operatively interconnecting the cam mechanisms for mechanically summing independent inputs therefrom to yield a mechanical output signal for actuating flap deployment drives, wherein the input cam mechanism is comprised of a cam (64) rotationally operable in response to a command input signal and a cam follower (68) in mating engagement therewith for cammed movement with rotation thereof to provide a first input signal to the summing lever characteristic of a predetermined flap configuration, the feedback cam mechanism is comprised of a cam (94) rotationally operable in response to movement of the flaps and a cam follower (100) in mating engagement therewith for cammed movement in response to movement of the flaps to provide a second input signal to the summing lever characteristic of the existing flap configuration; and further wherein the summing lever receives the first input signal via a first input leg (160) and the second input signal via a second input leg (162) and provides a mechanical output signal as a sum of the two inputs at a third leg (164) indicative of any difference between the commanded flap configuration and the existing flap configuration.
REFERENCES:
patent: 2601760 (1952-07-01), Swartz et al.
patent: 2962911 (1960-12-01), Perkey et al.
patent: 3067628 (1962-12-01), Haworth et al.
patent: 4071208 (1978-01-01), Baker
patent: 4244541 (1981-01-01), Dorn
Baker Michael E.
Baker Thomas M.
Barefoot Galen L.
The Boeing Company
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