Balanced harmonic drive with output shaft disconnect
AssigneeHamilton Sundstrand Corporation
InventorsDerick S. Balsiger, Keith A. Bloxham
Life of this patent
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Abstract
A harmonic drive, having: a housing; an output shaft within the housing; an input shaft within the housing, the input shaft is configured for being in a first position in which rotation of the input shaft rotates the output shaft, and a second position that is axially offset from the first position, in which rotation of the input shaft does not rotate the output shaft; a solenoid coil within the housing that, when energized, moves the input shaft to the second position; and a spring within the housing that, when the solenoid coil is not energized, moves the input shaft to the first position.
Claims18
A harmonic drive, comprising:
- a housing;
- an output shaft within the housing;
- an input shaft within the housing, the input shaft is configured for being in a first position in which rotation of the input shaft rotates the output shaft, and a second position that is axially offset from the first position, in which rotation of the input shaft does not rotate the output shaft;
- a solenoid coil within the housing that, when energized, moves the input shaft to the second position;
- and
- a spring within the housing that, when the solenoid coil is not energized, moves the input shaft to the first position.
Dependencies are inferred from the claim text.