DRIVE DEVICE

WIPO Patent Application WO/2010/140656

A1

Provided is a drive device in which, by causing the bending deformation of a flexible ring body without a mechanical rotary drive, the device is simplified in configuration and reduced in size, thereby enabling the number of maintenance steps to be reduced and a mechanical vibration in operation to be suppressed. The drive device (100) includes, inside a cylindrical housing (101), a flexible ring body (103) configured with a magnetic body and fixed so as not to be revolvable. Outside the flexible ring body (103), a stator (102a to 102f) is provided on the inner circumferential surface of the housing (101). The stator (102a to 102f) is configured with an electromagnet and causes the radial bending deformation of the flexible ring body (103) continuously along the circumferential direction. Inside the flexible ring body (103), a driven body (105) formed in a shaft shape is disposed. Internal teeth (104) and external teeth (106) are formed on the inner circumferential surface of the flexible ring body (103) and on the outer circumferential surface of the driven body (105), respectively, and engage each other when the flexible ring body (103) undergoes the bending deformation.

OIWA TAKAAKI (JP)
TERAKAWA SUSUMU (JP)

PCT/JP2010/059441

December 09, 2010

June 03, 2010

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UNIV SHIZUOKA NAT UNIV CORP (JP)
NAT UNIVERSITY CORP HAMAMATSU UNIVERSITY SCHOOL OF MEDICINE (JP)
OIWA TAKAAKI (JP)
TERAKAWA SUSUMU (JP)

F16H1/32

JPS61231863A	1986-10-16
JPH05196097A	1993-08-06
GB153982A	1920-11-25
JPH0483944A	1992-03-17
JP2007154955A	2007-06-21
JPH0614593U	1994-02-25

ITO HIROYUKI (JP)
居藤 Hiroyuki (JP)

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