Nutating motor with automatic engagement and disengagement of hand wheel with output shaft
AssigneeEaton Corporation
InventorRichard K. Knight
Life of this patent
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Abstract
A rotor, rotatably coupled to an output shaft, is slidable axially along the shaft, the rotor and its coupling being biased axially out of engagement with a stator into engagement with a hand wheel to effect rotational coupling of the hand wheel to the output shaft. Electrical energization of the motor attracts the rotor to the stator, axially sliding the rotor and its coupling against the bias to automatically uncouple the rotary connection with the hand wheel, and to effect a motor driven coupling with the output shaft.
Claims8
A nutating motor having an output shaft alternatively driven by said motor or by a manually operated wheel comprising:
- coupling means mounting a rotor element for wobbling motion about an axis of said shaft, said coupling means rotatably connecting said rotor element to said shaft and being slidable axially along said shaft;
- said wheel being rotatable about an axis common with said axis of said shaft and being rotatable independently of said shaft;
- cooperative drive means on said wheel and said coupling means engagable in an axial direction to rotatably connect said wheel to said coupling means;
- a spring biasing said coupling means axially toward said wheel to effect engagement of said cooperative drive means;
- and
- a stator having a plurality of windings energizable in a prescribed sequence to attract said rotor and said coupling means axially away from said wheel against the bias of said spring, disengaging said cooperative drive means, and effecting rotation of said shaft by nutating motion of said rotor element along said stator when said motor is electrically energized.
Dependencies are inferred from the claim text.