Actuator

Details Actuator Actuator

1981-10-02

1984-04-17

Herrmann, Allan D.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192141, 192143, 464 47, 464 97, B60K 4120, F16D 7100, F16D 702

Patent

active

044429282

ABSTRACT:
In an actuator system (10) having an air motor (12) for supplying a ball-screw actuator (14) with rotary input. The ball screw actuator (12) has a friction clutch mechanism (206) that limits the torque applied to the screw (176) when the ball nut (166) reaches first and second extreme positions. Thus, the maximum output from the air motor (12) can be applied to ball screw actuator (14) without braking before the positions are reached. A torsion bar and a cam 274 act to regulate the clutch (206) slipping torque to narrow limits, thereby easing strength requirements in the actuation mechanism (10).

REFERENCES:
patent: 2502573 (1950-04-01), Lee
patent: 2660281 (1953-11-01), Ochtman
patent: 2820600 (1958-01-01), Brunner
patent: 3122903 (1964-03-01), Ramsden
patent: 3258985 (1966-07-01), Jordan
patent: 3590965 (1971-07-01), Oppenheimer

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