Geared rotary actuator with internal stop mechanism

Details Geared rotary actuator with internal stop mechanism Geared rotary actuator with internal stop mechanism

1991-12-16

1993-03-02

Braun, Leslie A.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

475311, 192139, 192148, 74 102, F16D 1108, F16D 1112, F16D 4326, F16H 3510

Patent

active

051905035

ABSTRACT:
Weight and complexity concerns in geared rotary actuators and stop mechanisms for aircraft or the like may be minimized in the structure including a housing (18) adapted to be fixed to another structure, a rotatable input shaft (14) journalled by the housing (18), an output shaft (22, 28) journalled by the housing and a coupling between the input shaft (14) and the output shaft (22, 28) including at least one rotatable gear (42). The system includes a mechanical sensor (66) for sensing when the gear (42) has rotated close to an overtravel position and a first stop element (82) is associated with the input shaft (14) to be rotatable therewith. A second stop element (80) is movable into interfering relation with the first stop element (82) to stop rotation thereof and is carried by a gear part (19). Also included is an actuator (60, 62, 68, 70, 72) responsive to the sensor (66) for moving the second stop element (80).

REFERENCES:
patent: 2547475 (1951-04-01), Larsen
patent: 2844038 (1958-07-01), Danta
patent: 3140618 (1964-07-01), Russell
patent: 3333477 (1967-08-01), Denkowski
patent: 3410381 (1968-11-01), Henshaw et al.
patent: 3635319 (1972-01-01), Bleibtreu eet al.
patent: 4043226 (1977-08-01), Buuck
patent: 4621717 (1986-11-01), Onodera et al.
patent: 4641737 (1987-02-01), Gillingham et al.
patent: 4930611 (1990-06-01), Grimm
patent: 4932511 (1990-06-01), Ames

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