JPH03101189U

JPH03101189U -

Info

Publication number: JPH03101189U
Application number: JP701690U
Authority: JP
Priority date: 1990-01-30
Filing date: 1990-01-30
Publication date: 1991-10-22

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例の一部切欠き正面
図、第２図は第１図の−線断面図、第３図は
本考案の第２実施例の一部切欠き背面図、第４図
は第３図の−線断面図、第５図はステータの
斜視図、第６図ａ〜ｃは駆動原理を示す各々の説
明図である。図面中、１……アウタロータ、２……フレキシ
ブルリング、３……ステータ、４……積層型圧電
アクチユエータ、８……ライニング膜、１０……
基板、１１……支軸、１３……面取り部である。 Fig. 1 is a partially cutaway front view of the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Fig. 3 is a partially cutaway rear view of the second embodiment of the present invention. , FIG. 4 is a sectional view taken along the line -- in FIG. 3, FIG. 5 is a perspective view of the stator, and FIGS. 6 a to 6 c are explanatory views showing the driving principle. In the drawings, 1... Outer rotor, 2... Flexible ring, 3... Stator, 4... Laminated piezoelectric actuator, 8... Lining film, 10...
Substrate, 11... Support shaft, 13... Chamfered portion.

Claims

[Scope of utility model registration request]

a short cylindrical outer rotor with one end closed;
A flexible ring is fitted into the inner side of the outer rotor by an intermediate fit, and a support shaft that protrudes from the substrate that closes the other end surface of the outer rotor to the center of the flexible ring has a polygonal chamfered portion on the outer peripheral surface thereof. a stator, and a plurality of pairs that extend radially from the chamfered portion, are connected to the flexible ring, and are arranged in pairs facing each other with the support shaft in between, and expand and contract in the radial direction of the flexible ring as a result of changes in applied voltage. A piezoelectric rotary drive device comprising a piezoelectric component.