Title:
SPEED REDUCER
Document Type and Number:
WIPO Patent Application WO/2018/168588
Kind Code:
A1
Abstract:
According to the present invention, a cylindrical holder member (50) is rotatably disposed between an eccentric shaft portion (41) of an input shaft (40), and a first internal gear (20) fixed in a case (10) and a second internal gear (30) rotatably supported in the case (10). In the holder member (50), first pockets (51) respectively holding a plurality of first rollers (600) and second pockets (52) respectively holding a plurality of second rollers (61) are arranged, spaced apart in the circumferential direction, in two axial rows. The first rollers (600) move in the circumferential direction by only a distance corresponding to one tooth of the first internal gear (20) each time the eccentric shaft portion (41) of the input shaft (40) rotates one revolution, and the second rollers (61) rotate the second internal gear (30) by only the distance corresponding to the one tooth each time the eccentric shaft portion (41) of the input shaft (40) rotates one revolution.
Inventors:
SAITO TAKAHIDE (JP)
SATO KOJI (JP)
ISHIKAWA SHINTAROU (JP)
SATO KOJI (JP)
ISHIKAWA SHINTAROU (JP)
Application Number:
PCT/JP2018/008659
Publication Date:
September 20, 2018
Filing Date:
March 06, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H1/32; F01L1/352
Foreign References:
| JP2005042827A | 2005-02-17 | |||
| JP2011140982A | 2011-07-21 | |||
| JP2009236193A | 2009-10-15 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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