Patent attributes
A continuously variable transmission includes an input shaft rotatably supported in a housing; a first speed change unit and a second speed change unit, provided within the housing and disposed facing each other symmetrically with respect to a plane normal to the axial direction of the input shaft, to continuously vary the speed of rotation of the input shaft using traction force; an output rotating gear supported to be able to rotate freely about the input shaft so that the rotation of the output rotating gear is synchronized with the rotation which has been varied in speed by the first speed change unit and the second speed change unit; and an output shaft. The torque of the input shaft can be doubled by the two speed change units while continuously varying the speed, and the thrust loads generated in the axial direction of the input shaft cancel each other out.