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Title:
FRICTION ROLLER TYPE REDUCTION GEAR
Document Type and Number:
Japanese Patent JP2015086897
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress a slide of balls possessed by a loading mechanism which uses a ball cam, in a friction roller type reduction gear having the loading mechanism.SOLUTION: A loading device 7 employed in a friction roller type reduction gear has: a first sun roller 4a which is attached to an input shaft of the friction roller type reduction gear, and movable with respect to the input shaft in an axial direction; a linear first cam groove 17 formed at an end face of the first sun roller 4a; a cam plate 15 attached to the input shaft while opposing the first cam groove 17 side of the first sun gear 4a; and a linear second cam groove 18 formed at a face of the cam plate 15 while opposing the first cam groove 17; and balls 16 arranged between the first cam groove 17 and the second cam groove 18.

Inventors:
TANAKA ICHIU
INOUE EIJI
Application Number:
JP2013223623A
Publication Date:
May 07, 2015
Filing Date:
October 28, 2013
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16H13/08
Attorney, Agent or Firm:
Hiroaki Sakai



 
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