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Title:
CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
Japanese Patent JP2012219950
Kind Code:
A
Abstract:

To accomplish a structure in which a continuously variable transmission can be made compact and control during driving mode switching can be simplified.

Each of a low-speed clutch 35a and a high-speed clutch 38 can switch a low-speed mode and a high-speed mode based on switching of the engagement/disengagement of the clutch, wherein the low-speed mode achieves a geared neutral state in which an output shaft 4 is stopped while rotating an input shaft 3 in one direction, and wherein the high-speed mode achieves a state in which deceleration ratio is small compared to the low-speed mode. As one or both of the low-speed clutch 35a and the high-speed clutch 38, a switchable unidirectional clutch capable of mechanically switching the direction of torque to be transmitted is employed. Furthermore, a connection mode (the direction of torque to be transmitted) of the switchable unidirectional clutch is switched by a mechanical means such as a wire in accordance with a selected position of a shift lever.


Inventors:
TOYODA TOSHIRO
INOUE EIJI
NISHII DAIKI
Application Number:
JP2011088077A
Publication Date:
November 12, 2012
Filing Date:
April 12, 2011
Export Citation:
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Assignee:
NSK LTD
International Classes:
F16H37/02; F16D41/12; F16H15/38; F16H61/26
Domestic Patent References:
JP2000220719A2000-08-08
JPH02261708A1990-10-24
JPH11325125A1999-11-26
JP2000205304A2000-07-25
JPH0532866U1993-04-30
JP2001254804A2001-09-21
JP2004211744A2004-07-29
Foreign References:
WO2009132056A22009-10-29
Attorney, Agent or Firm:
Kiwa Patent Office