Capacitive actuator motor, capacitive actuator, and capacitive actuator unit
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United States of America Patent
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Feb 16, 2021
Grant Date -
Jan 4, 2018
app pub date -
Sep 12, 2017
filing date -
Mar 19, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A capacitive actuator motor according to an embodiment of the present invention includes a capacitive actuator having six actuator units and a motor output cam having a periodic shape portion. Each of the six actuator units includes a buckling displacement expansion mechanism configured to convert an output of a piezoelectric element and urge an output joint in a predetermined output direction and a preload adjustment spring configured to urge an output joint with a certain characteristic in a direction in which the periodic shape portion and the output joint come into contact with each other.
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