BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION FOR SADDLE-RIDING TYPE VEHICLE AND SADDLE-RIDING TYPE VEHICLE

WIPO Patent Application WO/2006/001410

A1

[PROBLEMS] To provide a belt type continuously variable transmission for a saddle-riding type vehicle capable of increasing a gear shift response without increasing the size of an electric motor. [MEANS FOR SOLVING PROBLEMS] A primary sheave (10) and a secondary sheave (11) are formed of fixed flanges (10A) and (11A) and movable flanges (10B) and (11B). The groove width of the primary sheave (10) is adjusted by movably controlling the movable flange (10B) of the primary sheave (10) by the electric motor, and the movable flange (11B) of the secondary sheave (11) is energized in a direction for reducing the groove width thereof by springs (13). The movable flanges (10B) and (11B) of the primary sheave (10) and the secondary sheave (11) further comprise torque cams (14) and (15) imparting thrusts in the axial directions of the movable flanges (10B) and (11B) according to torque differences between the torques of the fixed flanges (10A) and (11A) and the torques of the movable flanges (10B) and (11B).

JPH0926010	PULLEY TYPE TRANSMISSION
JP2006097844	POWER TRANSMISSION CHAIN AND POWER TRANSMISSION DEVICE USING IT
JP6257905	Gearless drive mechanism

UNNO TOSHIO (JP)
TAKEBE MITSUKAZU (JP)

PCT/JP2005/011711

January 05, 2006

June 27, 2005

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YAMAHA MOTOR CO LTD (JP)
UNNO TOSHIO (JP)
TAKEBE MITSUKAZU (JP)

F16H9/18; (IPC1-7): F16H9/18

JPH09112641A	1997-05-02
JPH0343061B2	1991-07-01
JPH0786383A	1995-03-31
JPH04157242A	1992-05-29

Teshima, Masaru (5-9-11 Nishitemma, Kita-k, Osaka-shi Osaka 47, JP)

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