Patent ID: 7125361

Claim:
A continuously variable transmission having two sets of input and output discs, wherein a roller is clamped in a rotatable condition by each set of discs arranged rotatably on a common axis and opposed to each other; wherein an actuator for moving each roller backward and forward in a direction along a plane vertical to a center axis of rotation of the discs is provided; and wherein each of said discs, rollers, and actuators are accommodated inside of a housing, comprising: an installation portion constructed of a wall portion leading to a center portion of said housing and located in a space separating the two sets of discs; wherein said actuators are fixed to said wall portion at a side face of the actuators; wherein said actuators are operated by oil pressure, and a port for conducting the oil pressure is formed by an opening on an installation face against a side face of said wall portion; wherein an oil passage is formed inside of said wall portion, and the oil passage comprises another port to be communicated with the port of said actuators with the opening to said side face; and wherein said actuators move backward and forward linearly, and said installation face inclines to a linear moving direction of the actuators with predetermined degrees.