Title:
FRICTION ROLLER REDUCTION GEAR
Document Type and Number:
WIPO Patent Application WO/2015/064258
Kind Code:
A1
Abstract:
This friction roller reduction gear has: a first sun roller attached in a manner able to move in the axial direction of an input shaft; a plurality of first cam grooves provided to the end surface of the first sun roller; a cam plate attached to the input shaft opposing the first cam groove side of the first sun roller; a plurality of second cam grooves provided to the cam plate opposing the first cam grooves; a rolling body provided between the first cam grooves and the second cam grooves; and a holder that holds the rolling body in a rollable manner and of which the pitch circle diameter at the position of holding the rolling body differs from the pitch circle diameter of the first cam grooves and second cam grooves.
Inventors:
TANAKA KAZUTAKA (JP)
MATSUDA YASUYUKI (JP)
MATSUDA YASUYUKI (JP)
Application Number:
PCT/JP2014/075636
Publication Date:
May 07, 2015
Filing Date:
September 26, 2014
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16H13/08
Foreign References:
| JP2004116670A | 2004-04-15 | |||
| JP2012207778A | 2012-10-25 | |||
| JPH09280342A | 1997-10-28 | |||
| JP2009520923A | 2009-05-28 | |||
| JP2010133501A | 2010-06-17 | |||
| JPS59187154A | 1984-10-24 |
Other References:
See also references of EP 3064804A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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