Motor device, apparatus and driving method for rotor
AssigneeNikon Corporation
InventorAkimitsu Ebihara
Life of this patent
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Abstract
A motor device includes a rotor, a transmission member wound around at least a portion of an outer periphery of the rotor, a moving part connected to the transmission member to move the transmission member, and a control unit which makes the moving part perform the driving operation of moving the transmission member by a predetermined distance in a state where a torque transmission state is brought between the rotor and the transmission member, and the returning operation of returning the transmission member to a predetermined position in a state where the torque transmission state is released.
Claims25
A motor device comprising:
- a rotor;
- a transmission member wound around at least a portion of an outer periphery of the rotor;
- a moving part connected to the transmission member to move the transmission member;
- and
- a control unit which makes the moving part perform a driving operation of moving the transmission member by a predetermined distance in a state where a torque transmission state is brought between the rotor and the transmission member, and a returning operation of returning the transmission member to a predetermined position in a state where the torque transmission state is released.
A motor device comprising:
- a rotor;
- a transmission member wound around the rotor;
- and
- a control unit which makes a vibrational wave propagate in one direction of the transmission member, and makes the transmission member perform a wavelike motion, thereby rotating the rotor in a direction opposite to the one direction.
A driving method of a rotor comprising:
- moving a transmission member by a predetermined distance in a state where a torque transmission state is brought between the rotor and the transmission member wound around the rotor;
- and
- returning the transmission member to a predetermined position where the torque transmission state is released.
Dependencies are inferred from the claim text.