Title:
HYBRID STEPPING MOTOR
Document Type and Number:
Japanese Patent JP2019110724
Kind Code:
A
Abstract:
To easily fetch a permanent magnet in disassembling of a hybrid stepping motor.SOLUTION: In a rotor 4, an annular permanent magnet 40, and rotor yokes 41 arranged in a direction in which a rotational shaft 5 extends on both sides of the annular permanent magnet 40 are provided. The permanent magnet 40 comprises a hole part 43 penetrated in the direction of the rotational shaft 5. An annular attachment member 42 formed by a synthetic resin or the like is fitted so as to be fittable to the hole part 43. A yoke axial hole 41a as an axial hole of the rotor yoke 41 and an attachment member axial hole 42a as the axial hole of the attachment member 42 are jointly adhered with an adhesive agent to the rotational shaft 5. The rotor yoke 41 and the attachment member 42 are adhered with the adhesion agent and are fixed. On the other hand, the permanent magnet 40 and the rotor yoke 41 are not fixed with the adhesion agent. The hole part 43 and the attachment member 42 are formed in an elliptical shape when viewed in a cross section of the rotor 4.SELECTED DRAWING: Figure 1
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Inventors:
YOSHIDA GORO
Application Number:
JP2017243825A
Publication Date:
July 04, 2019
Filing Date:
December 20, 2017
Export Citation:
Assignee:
TAMAGAWA SEIKI CO LTD
International Classes:
H02K1/27; H02K15/03; H02K37/14
Domestic Patent References:
| JP2002305850A | 2002-10-18 | |||
| JP2016134986A | 2016-07-25 | |||
| JP2012239319A | 2012-12-06 | |||
| JPH11332148A | 1999-11-30 |
Attorney, Agent or Firm:
Michiharu Soga
Kajinami order
Ichiro Oi
Kanayama Asuka
Kajinami order
Ichiro Oi
Kanayama Asuka