Title:
ROTATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/029309
Kind Code:
A1
Abstract:
The size of a rotating device is reduced. A magnet (31) is made of resin. In a cylindrical rotating body (32) that can rotate with respect to a shaft member (5), the radial direction is shorter than the axial direction. The inner circumferential surface of a first bearing (41) and a second bearing (42) is fixed to the outer circumferential surface of the shaft member (5). The shaft member (5) and the rotating body (32) are each formed as a single member. In the axial direction, the outer diameter of the shaft member (5) from the part facing the first bearing (41) to the part facing the second bearing (42), and the inner diameter and the outer diameter of the rotating body (32) from the first-bearing (41)-side end part to the second-bearing (42)-side are each substantially the same. In the axial direction, one of the stators (2) is placed at a center part (C1) of the shaft member (5), one of the magnets (31) is placed at a center part (C2) of the rotating body (32), and the first bearing (41) and the second bearing (42) are placed at both end part sides of the rotating body (32).
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Inventors:
IWATA HITOSHI (JP)
KANO TSUYOSHI (JP)
OHSAWA NAOKI (JP)
YAMANISHI SHOMA (JP)
NISHIKATA TOSHIYUKI (JP)
MITAMURA SEIJI (JP)
SHIMIZU MICHIHIRO (JP)
AMAGI YUTA (JP)
KANO TSUYOSHI (JP)
OHSAWA NAOKI (JP)
YAMANISHI SHOMA (JP)
NISHIKATA TOSHIYUKI (JP)
MITAMURA SEIJI (JP)
SHIMIZU MICHIHIRO (JP)
AMAGI YUTA (JP)
Application Number:
PCT/JP2020/030114
Publication Date:
February 18, 2021
Filing Date:
August 06, 2020
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
H02K21/22; F16C19/06; F16C19/54; F16C25/08; F16C35/12
Foreign References:
| JPS50117308U | 1975-09-25 | |||
| JP2017195690A | 2017-10-26 | |||
| JP2004064800A | 2004-02-26 | |||
| JP2017063524A | 2017-03-30 | |||
| JP2017017912A | 2017-01-19 | |||
| JP2012186956A | 2012-09-27 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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