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 (JP)
MATSUTO TAKUSHI (JP)
MATSUTO TAKUSHI (JP)
Application Number:
PCT/JP2018/020566
Publication Date:
January 03, 2019
Filing Date:
May 29, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H13/08
Domestic Patent References:
| WO2010004843A1 | 2010-01-14 |
Foreign References:
| JP2014076775A | 2014-05-01 | |||
| JPS5247162A | 1977-04-14 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Download PDF: