Title:
ROTARY DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/135886
Kind Code:
A1
Abstract:
The present invention comprises: a movable body section Mm having a rotor yoke 5 formed in a ring shape and a rotor magnet 4 in which a plurality of magnetic poles are arranged along the circumferential direction Ff of the rotor yoke 5; a fixed body section Mc in which a plurality of stator core sections 2c... are arranged so as to face the movable body section Mm at predetermined intervals along the circumferential direction Ff in a stator 2 formed in a ring shape; and a movable body detection unit Md that is arranged in at least one accommodation space Sc... formed in the stator 2 by removing some of the stator core sections (2c...) among the plurality of stator core sections 2c... and includes an encoder sensor 7e for detecting at least the rotation speed R of the movable body section Mm.
Inventors:
KOGA YOSHIRO (JP)
Application Number:
PCT/JP2022/039249
Publication Date:
July 20, 2023
Filing Date:
October 21, 2022
Export Citation:
Assignee:
TAKANO CO LTD (JP)
International Classes:
H02K11/22; H02K11/215; H02K11/225; H02K21/16
Domestic Patent References:
| WO2022034860A1 | 2022-02-17 |
Foreign References:
| JPH0591692A | 1993-04-09 | |||
| JPH09323238A | 1997-12-16 | |||
| JP2009225656A | 2009-10-01 | |||
| JPH0649093Y2 | 1994-12-12 | |||
| JPH11107129A | 1999-04-20 | |||
| JPH11117147A | 1999-04-27 | |||
| JP2007321879A | 2007-12-13 | |||
| JPH10293042A | 1998-11-04 |
Attorney, Agent or Firm:
SHIMODA Shigeru et al. (JP)
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