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Patent Searching and Data


Title:
SPEED REDUCER
Document Type and Number:
WIPO Patent Application WO/2019/003768
Kind Code:
A1
Abstract:
This speed reducer 1 is provided with: an output shaft 2 having a plurality of teeth 2a provided on the outer circumferential surface thereof; an eccentric member 3 disposed further toward the outer diameter side than the output shaft 2, and having an inner circumferential surface that is eccentric with respect to the output shaft 2; a plurality of rollers 6 disposed between the output shaft 2 and the eccentric member 3; and a retainer 7 for rotatably retaining the rollers 6. For each revolution of the eccentric member 3, the rollers 6 push tooth grooves of the output shaft 2 to thereby rotate the output shaft 2 by the amount of one tooth in the circumferential direction, whereby the output shaft 2 rotates at a reduced speed compared to the eccentric member 3.

Inventors:
ISHIKAWA Shintarou (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
MATSUTO Takushi (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
Application Number:
JP2018/020566
Publication Date:
January 03, 2019
Filing Date:
May 29, 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:
F16H13/08
Domestic Patent References:
WO2010004843A12010-01-14
Foreign References:
JP2014076775A2014-05-01
JPS5247162A1977-04-14
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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