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Patent Searching and Data


Title:
ELECTRIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2018/181067
Kind Code:
A8
Abstract:
The present invention provides an electric actuator comprising a motor 7 and a speed reducer 8 which reduces the speed of the motor 7 and transmits the reduced speed, wherein the rotating shaft of the motor 7 and the output rotating body 43 of the speed reducer 8 are arranged coaxially. The speed reducer 8 has: an input rotating body 40 rotating with the motor 7; a track ring 41 disposed on the outer periphery of the input rotating body 40; a plurality of planetary rotating bodies 42 rotatably arranged between the input rotating body 40 and the track ring 41; and an output rotating body 43 for holding the planetary rotating bodies 42. The entire track ring 41 of the speed reducer 8, all of the plurality of planetary rotating bodies 42, the entire or a part of the input rotating body 40 of the speed reducer 8, and a part of the output rotating body 43 are arranged on the inner periphery of the motor 7.

Inventors:
KITAYAMA Naotsugu (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
Application Number:
JP2018/011916
Publication Date:
August 29, 2019
Filing Date:
March 23, 2018
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
H02K7/116; F16H1/28; F16H13/08; G01B7/30; G01D5/12; H02K11/215; F16K31/04; F16K31/53
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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