Patent ID: 6870306

Claim:
An overlapping type piezoelectric stator comprising: a plurality of piezoelectric elements; and a foundation, wherein each piezoelectric element is formed in a thin film, a surface and a back of said piezoelectric element are each equipped with an electrode, respectively, and each piezoelectric element is folded up in a right-angled direction to an extension direction, wherein, in each of said piezoelectric elements folded up, predetermined parts of both sides are insulated by insulators, wherein, in attaching said piezoelectric elements to said foundation, said piezoelectric elements are arranged along said foundation in turn, said piezoelectric elements are overlapping, at least one of said electrodes on both sides of each piezoelectric element touches an electrode of an adjacent piezoelectric element, and an end of each piezoelectric element is fixed to said foundation, and wherein voltage is applied to electrodes of at least one of said piezoelectric elements arranged in turn.