Title:
FRICTION ROLLER TYPE REDUCTION GEAR AND ELECTRIC VEHICLE DRIVING DEVICE
Document Type and Number:
Japanese Patent JP2012207778
Kind Code:
A
Abstract:
To obtain a structure allowing the smooth displacement of intermediate rollers 19, 19 with a change in thickness regarding an axial direction of a loading cam device and obtaining excellent transmission efficiency.
A base end of a swing frame 35 with ends of rotating shafts of the respective intermediate rollers 19, 19 rotatably supported is supported to freely be swung and displaced relative to a support frame 32. The intermediate rollers 19, 19 are displaced in a radial direction of the support frame 32 accompanied by the action of the loading cam device. Then, the contact pressure of each traction is made uniform, thus solving the problem.
Inventors:
TANAKA ICHIU
MATSUDA YASUYUKI
IMANISHI TAKASHI
INOUE EIJI
HIBI TSUTOMU
MATSUDA YASUYUKI
IMANISHI TAKASHI
INOUE EIJI
HIBI TSUTOMU
Application Number:
JP2011238867A
Publication Date:
October 25, 2012
Filing Date:
October 31, 2011
Export Citation:
Assignee:
NSK LTD
International Classes:
F16H13/08
Domestic Patent References:
| JP2004116670A | 2004-04-15 | |||
| JP2009138931A | 2009-06-25 | |||
| JP2010025237A | 2010-02-04 | |||
| JP2006082748A | 2006-03-30 | |||
| JP2004116670A | 2004-04-15 | |||
| JP2009138931A | 2009-06-25 |
Foreign References:
| US1770408A | 1930-07-15 |
Attorney, Agent or Firm:
Kiwa Patent Office