Title:
HALF-TOROIDAL TYPE CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
Japanese Patent JP2015206425
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To generate proper pressing force with a simple structure in a half toroidal type continuously variable transmission.SOLUTION: A cam mechanism 18 disposed between a trunnion body 17 and an intermediate member 19, is composed of a first cam face C1 formed on the trunnion body 17, a second cam face C2 formed on the intermediate member 19, and a ball 34 kept into contact with the first cam face C1 and the second cam face C2. As the first and second cam faces C1, C2 are in parallel with each other and inclined to a trunnion axis L1, when a prescribed input torque is input, an input disc 13 and an output disc 14 convert a load for energizing a power roller 23 in a direction of the trunnion axis L1 by tangential force of transmission torque, into pressing force of the power roller 23 by the cam mechanism 18, thus gross slip of the power roller 23 can be prevented. Here, as the cam mechanism 18 generates necessary and sufficient pressing force according to the input torque and ratio, degradation of power transmission efficiency due to excessive pressing force can be prevented.
Inventors:
SATO TAKAO
Application Number:
JP2014087864A
Publication Date:
November 19, 2015
Filing Date:
April 22, 2014
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F16H15/38
Domestic Patent References:
| JPS58118358A | 1983-07-14 | |||
| JPS5965654A | 1984-04-13 | |||
| JPH01255758A | 1989-10-12 | |||
| JP2003042254A | 2003-02-13 | |||
| JP2002243010A | 2002-08-28 |
Foreign References:
| US20130244827A1 | 2013-09-19 |
Attorney, Agent or Firm:
Ken Ochiai
Kazuaki Niki
Nude Shima Shinji
Kazuaki Niki
Nude Shima Shinji