Title:
磁石ホルダ、磁石ユニット
Document Type and Number:
Japanese Patent JP7370207
Kind Code:
B2
Abstract:
In a magnet holder 4 including: a shaft attachment portion 41 to which a shaft 2 is press-fitted and fixed; and a magnet holding portion 42 that is provided on one side in an axial direction of the shaft attachment portion 41 and holds a periphery of a magnet 5, and provided with an undercut portion 50 that engages with the magnet 5 in the axial direction on an inner peripheral surface 43 of the magnet holding portion 42 facing the magnet 5, the magnet holding portion 42 and the shaft attachment portion 41 are integrally formed of sintered metal, an outer peripheral surface and an end surface of the magnet holding portion 42 and an inner peripheral surface of the shaft attachment portion 41 are sized, and the undercut portion 50 is formed by plastic deformation of the magnet holding portion 42.
Inventors:
Shohei Suzuki
▲高▼楠 利啓
Daisuke Takeda
▲高▼楠 利啓
Daisuke Takeda
Application Number:
JP2019179401A
Publication Date:
October 27, 2023
Filing Date:
September 30, 2019
Export Citation:
Assignee:
ntn corporation
International Classes:
B22F3/24; G01D5/245; H02K15/14
Domestic Patent References:
| JP2017173035A | ||||
| JP7332363A | ||||
| JP2014057431A |
Attorney, Agent or Firm:
Kunihiko Shiromura
Takeshi Kumano
Tomo Okamura
Takeshi Kumano
Tomo Okamura
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