Title:
ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2020/075517
Kind Code:
A1
Abstract:
This actuator is provided with: a first motor that has a first stator and a first rotor; a second motor that has a second stator and a second rotor and that is disposed spaced from the first motor in the axial direction of a center axis; a shaft member that passes through the first and second rotors along the axial direction, and that is provided with a spline groove in a first part projecting from the first rotor toward the side opposite to the second rotor and provided with a male thread in a second part projected from the second rotor toward the side opposite to the first rotor; a spline outer cylinder that guides the shaft member along the spline groove in the axial direction by engaging with the spline groove of the shaft member, and that can cause the shaft member to axially rotate about the center axis by rotating together with the first rotor; and a nut member that is provided with a female thread to be engaged with the male thread of the shaft member, and that can move the shaft member in the axial direction of the center axis by rotating together with the second rotor.
Inventors:
KOIZUMI KAZUNORI (JP)
WATANABE HAYAO (JP)
WATANABE HAYAO (JP)
Application Number:
PCT/JP2019/037893
Publication Date:
April 16, 2020
Filing Date:
September 26, 2019
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
H02K7/06; H02K16/00
Foreign References:
| JP2003065416A | 2003-03-05 | |||
| JP2008036747A | 2008-02-21 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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