Title:
TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2019/188673
Kind Code:
A1
Abstract:
This transmission has: an external gear having a plurality of outer teeth on the outer circumference thereof; and a plurality of carrier pins. The carrier pins extend in the axial direction, through through-holes provided in the external gear. The external gear has an external gear main body and a protective film that covers at least part of the inner circumferential surface of the through-holes. The protective film has a higher abrasion resistance than the external gear main body. During transmission drive, the through-holes and the carrier pins have repeated relative movement. During this time, the carrier pins are in contact with the protective film having high abrasion resistance. As a result, the inner circumferential surface of the through-holes can suppress abrasion resulting from contact with the carrier pins.
Inventors:
TSUBONE TAIHEI (JP)
SUGIMOTO KOJI (JP)
SUGIMOTO KOJI (JP)
Application Number:
PCT/JP2019/011744
Publication Date:
October 03, 2019
Filing Date:
March 20, 2019
Export Citation:
Assignee:
NIDEC SHIMPO CORP (JP)
International Classes:
F16H1/32; F16H57/08
Foreign References:
| JP2018017362A | 2018-02-01 | |||
| JP2017025971A | 2017-02-02 | |||
| JP2000213605A | 2000-08-02 | |||
| JP2014214834A | 2014-11-17 |
Attorney, Agent or Firm:
KOHO IP LAW (JP)
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