Title:
PLANETARY GEAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/031891
Kind Code:
A1
Abstract:
The present invention provides a planetary gear device wherein power transmission is carried out efficiently. This planetary gear device (1) is provided with: a first internally toothed gear (20) and a second internally toothed gear (30); a first externally toothed gear (13a) which engages with the first internally toothed gear (20); a second externally toothed gear (13b) which engages with the second internally toothed gear (30); and an eccentric body (10A) which is orbited by the first externally toothed gear (13a) and the second externally toothed gear (13b). The first externally toothed gear (13a) and the second externally toothed gear (13b) rotate integrally with each other; the first internally toothed gear (20) and the second internally toothed gear (30) respectively have supporting bodies (51a, 51b, 21, 34, 35, 31, 39) and a plurality of inner teeth (21, 22, 31, 32); and each one of the plurality of inner teeth (21, 22, 31, 32) comprises a rotor (22, 32) which is supported by a supporting body in a rotatable manner.
Inventors:
ISHIDA HIROAKI (JP)
ISHIZUKA MASAYUKI (JP)
NAGUMO TOSHIYA (JP)
ISHIZUKA MASAYUKI (JP)
NAGUMO TOSHIYA (JP)
Application Number:
PCT/JP2019/030490
Publication Date:
February 13, 2020
Filing Date:
August 02, 2019
Export Citation:
Assignee:
SUMITOMO HEAVY INDUSTRIES (JP)
International Classes:
F16H1/32
Foreign References:
| JPS58178045A | 1983-10-18 | |||
| JPS631838A | 1988-01-06 | |||
| JPH06241283A | 1994-08-30 | |||
| JP2016142362A | 2016-08-08 | |||
| JPS6222347U | 1987-02-10 |
Attorney, Agent or Firm:
ARAFUNE, Hiroshi et al. (JP)
Download PDF: