Belt type continuously variable transmission

A belt type continuously variable transmission, comprising:

• two pulley shafts arranged in parallel a predetermined distance apart from each other;
• a movable sheave on each pulley shaft, the movable sheaves being able to slide in an axial direction on the pulley shafts;
• a fixed sheave arranged on each pulley shaft so as to face the moveable sheave on each pulley shaft, the fixed sheave and the movable sheave that face each other on each pulley shaft together forming a groove therebetween;
• a belt wound around the grooves between the movable sheaves and the fixed sheaves that face one another;
• and
• a motor integrally provided with one of the movable sheaves and capable of driving the one of the movable sheaves, the motor being rotatable in normal and reverse directions to drive said movable sheave;
• a hydraulic pressure chamber, which pushes the one movable sheave toward the fixed sheave using hydraulic pressure, is provided between the motor and an inner radial surface of the one movable sheave in the axial direction,
• wherein the motor includes an inner rotor that is integrally assembled with a pulley shaft of the one of the moveable sheaves and an outer rotor that generates driving force that drives the one of the moveable sheaves in the axial direction of the pulley shaft by rotating relative to the inner rotor,
• wherein the outer rotor is provided with an outer peripheral portion disposed radially about the outer rotor and the moveable sheave is provided with a hollow portion that includes an inner circumferential wall surface, and
• wherein a moving direction converting mechanism that converts force in the direction of rotation, which is a driving force of the motor, into a force in the axial direction is provided between the outer peripheral portion of the outer rotor and the inner circumferential wall surface of the hollow portion of the moveable sheave.