Title:
POWER TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2016153686
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power transmission device capable of changing a pressing force in an axial direction which is applied to a predetermined roller in a traction drive device when necessary.SOLUTION: A power transmission device includes a planetary roller transmission and a loading cam device 11. The loading cam device 11 has three cam mechanisms 114a-114c in a radial direction from a rotation center C of a cam ring 110. Then, by changing an engaging cam mechanism, the distance from a rotation center C to a rolling element and a cam surface engaged with each other is changed. A force in an axial direction applied to the rolling element and the cam surface engaged with each other, that is a pressing force applied to a sun roller of the planetary roller transmission, is in reverse proportion to the distance from the rotation center C to the rolling element and the cam surface engaged with each other. Therefore, the pressing force applied to the sun roller can be changed when necessary.SELECTED DRAWING: Figure 2
Inventors:
HONDA YUKIHIRO
KUWAYAMA AKINORI
KUWAYAMA AKINORI
Application Number:
JP2015086982A
Publication Date:
August 25, 2016
Filing Date:
April 21, 2015
Export Citation:
Assignee:
DENSO CORP
International Classes:
F16H13/14; F16H13/08
Domestic Patent References:
| JP2012193831A | 2012-10-11 | |||
| JPH04171363A | 1992-06-18 | |||
| JP2010091059A | 2010-04-22 | |||
| JP2002139115A | 2002-05-17 |
Attorney, Agent or Firm:
Patent business corporation Kyoritsu
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