Piezoelectric motor
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsAkira Tokusima, Ritsuo Inaba
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Abstract
A piezoelectric motor wherein a stator comprising piezoelectric vibrators of rectangular or circular plate form pasted with a metal is used as a power source and a mechanical vibration in two directions, longitudinal and widthwise directions or radial and tangential directions, is converted into a rotary or linear motion through frictional force.
Claims7
A piezoelectric motor characterized in that two piezoelectric vibrators each divided into at least a pair of regions whose directions of polarization are alternately reversed are arranged so that disposed on the vicinity of the middle of each said region of one piezoelectric vibrator is the boundary of each said region of the other, a base made of an acoustic material is put together with said two piezoelectric vibrator to from a stator, and a runner is provided which is in surface contact with said stator.
Dependencies are inferred from the claim text.