Title:
CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
Japanese Patent JP2015232338
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To achieve size reduction of a crank continuously variable transmission while ensuring the strength and rigidity of an eccentricity variable mechanism.SOLUTION: If a transmission shaft 15 is caused to make a relative rotation to an input shaft 11, a disc 32 and a pair of links 34 make a relative movement to a pair of crank arms 31, whereby a positional relation of an eccentric disc 13 to the crank arms 31 changes and an eccentricity ε of the eccentric disc 13 changes. Since the links 34 are members each including a first spindle 36 and a second spindle 35 on two ends, respectively, a maximum dimension of each link 34 can be reduced to about half of the dimension of a second disc fitted into a second circular hole of a conventional eccentric disc to be relatively rotatable, and it is possible to reduce a diameter of the eccentric disc 13 by as much as the reduction and reduce a size of an eccentricity variable mechanism 14. Furthermore, by holding the eccentric disc 13 between the paired crank arms 31 and the paired links 34, it is possible to increase the strength and rigidity of the eccentricity variable mechanism 14 and improve control accuracy over a transmission gear ratio.
Inventors:
NISHIMURA YUJI
Application Number:
JP2014118498A
Publication Date:
December 24, 2015
Filing Date:
June 09, 2014
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
F16H29/04
Domestic Patent References:
| JP2013024382A | 2013-02-04 | |||
| JP2011528775A | 2011-11-24 | |||
| JP2005502543A | 2005-01-27 | |||
| JP2010025310A | 2010-02-04 | |||
| JP2016014464A | 2016-01-28 |
Attorney, Agent or Firm:
Ken Ochiai
Kazuaki Niki
Nude Shima Shinji
Kazuaki Niki
Nude Shima Shinji