Title:
SPEED REDUCER
Document Type and Number:
WIPO Patent Application WO/2019/009176
Kind Code:
A1
Abstract:
This speed reducer has an input rotating body, an output rotating body, and a housing. The input rotating body includes an input shaft, an arm part, and rollers. The output rotating body includes a movable crown gear and an output shaft. The housing includes a fixed crown gear. The movable crown gear and the fixed crown gear extend perpendicular to or obliquely with respect to a center axis. Furthermore, the movable crown gear and the fixed crown gear have side-surface teeth facing each other. The rollers make contact with a portion of the movable crown gear in the circumferential direction. The movable crown gear and the fixed crown gear partially mesh with each other due to pressing force applied by the rollers. Furthermore, in conjunction with the rotation of the input rotating body, the meshing position of the movable crown gear and the fixed crown gear changes in the circumferential direction with the input rotation speed, with the center axis as the center. The movable crown gear rotates with respect to the fixed crown gear with an output rotation speed, which is determined by the difference in the number of teeth of the movable crown gear and the fixed crown gear.
Inventors:
INOUE HITOSHI (JP)
OKAMURA KIKUO (JP)
OKAMURA KIKUO (JP)
Application Number:
PCT/JP2018/024570
Publication Date:
January 10, 2019
Filing Date:
June 28, 2018
Export Citation:
Assignee:
NIDEC SHIMPO CORP (JP)
International Classes:
F16H1/32; F16H55/06
Domestic Patent References:
| WO2016027323A1 | 2016-02-25 | |||
| WO2016027324A1 | 2016-02-25 |
Foreign References:
| JPS60129455A | 1985-07-10 | |||
| JPS4428570Y1 | 1969-11-27 | |||
| JPS6389453U | 1988-06-10 | |||
| JPS59191458U | 1984-12-19 | |||
| JPH04370445A | 1992-12-22 |
Attorney, Agent or Firm:
KOHO IP LAW (JP)
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