ROTATIONAL DRIVE SOURCE FOR ELECTRICAL ACTUATOR, AND ELECTRICAL ACTUATOR

Title:

ROTATIONAL DRIVE SOURCE FOR ELECTRICAL ACTUATOR, AND ELECTRICAL ACTUATOR

Document Type and Number:

WIPO Patent Application WO/2018/116739

Kind Code:

A1

Abstract:

This rotational drive source 1 for an electrical actuator is provided with an electric motor 5, a speed reducer 2, and a housing 8 that accommodates the electric motor 5 and the speed reducer 2, wherein the speed reducer is provided with: a sun roller 21 which acts as a sun member that receives the rotation of a rotor 52c and rotates; an outside ring 22 disposed on the radial outward side of the sun roller 21; and a plurality of planetary rollers 23 disposed between the sun roller 21 and the outside ring 22, and that rotate and revolve along with the rotation of the sun roller 21. The outside ring 22 is held by the housing 8 by means of frictional force with a holding surface S provided on the axial outward side thereof.

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Inventors:

MATSUTO TAKUSHI (JP)
USHIDA KIMIHITO (JP)
KAWAI MASAHIRO (JP)
KATO AKIO (JP)

Application Number:

PCT/JP2017/042115

Publication Date:

June 28, 2018

Filing Date:

November 22, 2017

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)

International Classes:

F16H57/08; F16H13/08; F16H25/20; F16H25/22; H02K7/116

Foreign References:

JPS576844U	1982-01-13
JPH09201004A	1997-07-31
JP2016164432A	2016-09-08
JP2004183784A	2004-07-02

Attorney, Agent or Firm:

SHIROMURA Kunihiko et al. (JP)

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