Piezoelectric ultrasonic motor with a more stable vibration body
AssigneeNew Shicoh Motor Co., Ltd.
InventorTatsuki Wade
Life of this patent
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Abstract
A piezoelectric ultrasonic motor including: a columnar body having two opposite bottom surface portions and a plurality of side surface portions surrounding a region between the two bottom surface portions, and having a through hole that penetrates between the two bottom surface portions; a driving shaft inserted through the through hole of the columnar body; and a flexible printed circuits (FPC) on which a plurality of sheet-like piezoelectric elements are mounted, wherein the FPC has an FPC main body bringing the plurality of piezoelectric elements into contact respectively with the plurality of side surface portions of the columnar body and wound around the columnar body, and can supply driving electric power to the plurality of piezoelectric elements.
Claims10
A piezoelectric ultrasonic motor, comprising:
- a columnar body having two opposite bottom surface portions and a plurality of side surface portions surrounding a region between the two opposite bottom surface portions, and having a through hole that penetrates between the two opposite bottom surface portions;
- a driving shaft inserted through the through hole of the columnar body;
- and
- a flexible printed circuit (FPC) on which a plurality of sheet-like piezoelectric elements elements are mounted, wherein the FPC has an FPC main body bringing the plurality of piezoelectric elements into contact respectively with the plurality of side surface portions of the columnar body and is wound around the columnar body, and can supply driving electric power to the plurality of sheet-like piezoelectric elements.
Dependencies are inferred from the claim text.