Actuator

Details Actuator Actuator

F - Mech Eng,Light,Heat,Weapons

16

H

74/65

F16H 25/00 (2006.01) B64C 13/28 (2006.01) F02K 1/76 (2006.01) F15B 15/26 (2006.01) F15B 15/14 (2006.01)

Patent

CA 1201908

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). Fig. (2)

411902

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