Ultrasonic motor and electronic device using the same
AssigneeSeiko Instruments Inc.
InventorsAkihiro Iino, Makoto Suzuki
Life of this patent
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Abstract
The present invention provides an ultrasonic motor including a wire having a coiled stator at one end thereof, a vibration generating device disposed at another end of the wire, a moving member that is in contact with the stator, a guide member that guides the rotation of the moving member, and an elastic member that covers the periphery of the wire. Accordingly, the driving efficiency of the ultrasonic motor that has a simple structure and that can be easily downsized can be enhanced and the performance stability thereof can be realized.
Claims12
An ultrasonic motor, comprising:
- a wire having a coiled stator at one end thereof;
- a vibration generating device disposed at another end of the wire;
- a moving member that is in contact with the stator;
- a guide member that guides the rotation of the moving member;
- and
- an elastic member that covers the periphery of the wire.
An ultrasonic motor, comprising:
- a wire having a coiled stator at one end thereof;
- a vibration generating device disposed at another end of the wire;
- a moving member that is in contact with the stator;
- a guide member that guides the rotation of the moving member;
- and
- a fixing portion that is disposed in the guide member and fixes a part of the wire.
An ultrasonic motor, comprising:
- a wire having a coiled stator at one end thereof;
- a vibration generating device disposed at another end of the wire;
- a moving member that is in contact with the stator;
- a guide member that guides the rotation of the moving member;
- and
- a vibration absorbing member that is disposed on an end of the stator.
An ultrasonic motor, comprising:
- a wire having a coiled stator at one end thereof;
- a vibration generating device disposed at another end of the wire;
- a moving member that is in contact with the stator;
- a guide member that guides the rotation of the moving member;
- and
- a second coil portion that is different in shape from a coil that constitutes the coiled stator, and continuous to the coiled stator.
Dependencies are inferred from the claim text.