Title:
SHAFT, AND ROTATING MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/260123
Kind Code:
A1
Abstract:
[Problem] To provide a shaft 55 with which it is possible to suppress damage to the shaft 55 without increasing the diameter of the shaft 55. [Solution] The shaft 55 is provided with a received portion 55a which is received rotatably by a bearing, and a large diameter portion 55b which is arranged closer to the center, in an axial direction, than the received portion 55a and adjacent to the received portion 55a, and which has a larger diameter than the received portion 55a, and the shaft 55 rotates integrally with a rotor while holding the rotor, wherein a cross-sectional shape of a boundary portion 55c between the received portion 55a and the large diameter portion 55b in a longitudinal cross section through the shaft 55 includes, further toward the outside, in the axial direction, than a virtual starting point P1, an arc shape which becomes recessed, with increasing distance from the outside toward the inside in the axial direction, further toward the inside, in the radial direction, than an outer edge, in the radial direction, of the received portion 55a, and which then rises toward the outside, in the radial direction, further than the outer edge.
Inventors:
SHO SHINHAKU (JP)
Application Number:
PCT/JP2022/023262
Publication Date:
December 15, 2022
Filing Date:
June 09, 2022
Export Citation:
Assignee:
MEIDENSHA ELECTRIC MFG CO LTD (JP)
International Classes:
H02K5/16; H02K5/173
Foreign References:
| JP2012055110A | 2012-03-15 | |||
| JPS63198355U | 1988-12-21 | |||
| JPS5345336U | 1978-04-18 | |||
| CN202475103U | 2012-10-03 | |||
| JP2000156952A | 2000-06-06 |
Attorney, Agent or Firm:
TAKAOKA Ryoichi et al. (JP)
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