Toroidal continuously variable transmission

A toroidal continuously variable transmission (CVT) comprising:

• first and second input discs coaxially connected to an input shaft;
• first and second output discs coaxially disposed between the first and second input discs;
• pressure means for applying a pressing force along an axial direction of the toroidal CVT to the pair of the input discs;
• first and second power rollers disposed between the first input disc and the first output disc;
• third and fourth power rollers disposed between the second input disc and the second output disc;
• first, second, third and fourth power-roller supporting members supporting the first, second, third and fourth power rollers, respectively;
• a first wire wound in a shape of 8-figure to the first and second power-roller supporting members;
• a second wire wound in a shape of 8-figure to the third and fourth power-roller supporting members;
• a third wire wound around the first, second, third and fourth power roller supporting members and fixed attached to the second and third power-roller supporting members diagonally arranged;
• and
• guide walls disposed between the first and second power-roller supporting members and between the third and fourth power-roller supporting members, respectively, the guide walls bending the third wire extended between the first and second power-roller supporting members and between the third and fourth power-roller supporting members toward the output discs.