Title:
GEARING
Document Type and Number:
WIPO Patent Application WO/2017/170587
Kind Code:
A1
Abstract:
This gearing has one transmission member having a first axis as the center axis, and another transmission member that can revolve around the first axis while rotating around a second axis, which is offset from the first axis. A transmission mechanism between both transmission members comprises: one transmission groove that has an annular wave shape, that is provided to the one transmission member, and that is centered around the first axis; another transmission groove that has an annular wave shape, that is provided to the other transmission member, and that is centered around the second axis; and a plurality of rolling elements that are interposed in a plurality of intersecting sections of both transmission grooves. Retention members (H1, H2) are composed of synthetic resin elements comprising: a plurality of housings (51, 52), each having a retention hole (31, 32) in the plurality of rolling elements (23, 26), and being arranged at equal intervals along the same circumference; and a plurality of rod-like linking parts (53, 54) that integrally link adjacent housings (51, 52) in the circumferential direction. This configuration makes it possible to increase transmission efficiency by ensuring the smooth rolling of all of the rolling elements by using synthetic resin elements having a specific structure as the retention members.
Inventors:
MATSUOKA SHINYA (JP)
Application Number:
PCT/JP2017/012721
Publication Date:
October 05, 2017
Filing Date:
March 28, 2017
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H25/06
Domestic Patent References:
| WO2016013315A1 | 2016-01-28 |
Foreign References:
| JPS622064A | 1987-01-08 | |||
| JPS59146619U | 1984-10-01 | |||
| JPS61200928U | 1986-12-16 |
Attorney, Agent or Firm:
OCHIAI & CO. (JP)
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