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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.

Inventors:
MATSUTO Takushi (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
USHIDA Kimihito (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
KAWAI Masahiro (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
KATO Akio (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
Application Number:
JP2017/042115
Publication Date:
June 28, 2018
Filing Date:
November 22, 2017
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16H57/08; F16H13/08; F16H25/20; F16H25/22; H02K7/116
Foreign References:
JPS576844U1982-01-13
JPH09201004A1997-07-31
JP2016164432A2016-09-08
JP2004183784A2004-07-02
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (Ehara Patent Office, 2-15 Bakurou-machi 4-chome, Chuo-ku, Osaka-sh, Osaka 59, 〒5410059, JP)
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