Ultrasonic motor
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Nov 20, 2014
filing date -
Dec 27, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
There is disclosed an ultrasonic motor having a vibrator that vibrates by a high frequency drive voltage applied thereto, a sliding member that comes in contact frictionally with the vibrator, pressurizing means for pressurizing the vibrator to the sliding member, a base to which the vibrator is fixed, a vibrator support member holding the base, and coupling means for coupling the vibrator with the vibrator support member, the vibrator and the sliding member being relatively moved by the vibration, wherein the coupling means includes the base, the rolling member that freely moves the base to the vibrator support member in a pressurizing direction of the pressurizing means, and an urging member that urges the rolling member in a direction perpendicular to the pressurizing direction of the pressurizing means.
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