Patent ID: 7556576
Filing Date: 2009-07-07
Classification: F16H,Y10T

Abstract:
1. A V-belt continuously variable transmission comprising: a primary sheave disposed on a primary sheave shaft, to which a driving force of an engine is input, and arranged to define a V-groove for receiving a belt; a secondary sheave disposed on a secondary sheave shaft, from which a driving force for a driving wheel is output, and arranged to define a V-groove for receiving a belt; a V-belt received in the respective V-grooves of the primary sheave and the secondary sheave to transmit a rotational driving force between both the sheaves; the primary sheave and the secondary sheave being respectively defined by a movable sheave half and a fixed sheave half; an electric motor; a control device arranged to control the electric motor; and a sheave drive mechanism arranged to transmit a driving force of the electric motor to the movable sheave half of the primary sheave to control respective groove widths of the primary sheave and the secondary sheave; wherein the sheave drive mechanism includes: