Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/067163
Kind Code:
A1
Abstract:
This reduction gear 1 is provided with multiple rollers 4, an input member 10 (a first member) which has multiple first pockets 13 into which the multiple rollers 4 are inserted, a pair of fixed members 5 (a second member) which are provided on both sides of the input member 10 in the axial direction and which have a rolling element engagement groove 16 where both axial ends of the rollers 4 engage, and a pair of output members 31, 32 (a third member) which are provided between the input member 10 and the pair of fixed members 5 in the axial direction and which have multiple second pockets 17 into which the multiple rollers 4 are inserted. The multiple first pockets 13 are formed along a circle of which the center of curvature is eccentric from the rotation center X. The rolling element engagement groove 16 is formed along a wavy curve which alternately intersects with a pitch circle, the center of curvature of which is the rotation center X.

Inventors:
IGI TAISUKE (JP)
OOBA HIROKAZU (JP)
Application Number:
PCT/JP2019/037613
Publication Date:
April 02, 2020
Filing Date:
September 25, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H25/06
Foreign References:
JP2017180558A2017-10-05
JP2018021602A2018-02-08
Other References:
See also references of EP 3859189A4
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Download PDF: