Arrangement of pulley cylinder in a belt-type continuously variable transmission

摘要

In a pulley arrangement of a belt-type continuously variable transmission, a ring member (6) integrated with a first cylinder member (3) is coupled to a second cylinder member (5) using splines (6d and 5c) to limit mutual movements of the first and second cylinder members and using snap ring (7) to limit the axial displacement therebetween in peripheral directions of the respective first and second cylinder members. The first cylinder member is slidably contacted on an outer peripheral surface of a hollow cylindrical portion of a second conical pulley component. The second cylinder member is fixed onto an outer peripheral surface of a shaft portion of a first conical pulley component. In addition, a another stopper is provided between an outer peripheral end of the hollow cylindrical portion (56d) and an inner peripheral surface of the second piston member (8) for limiting mutual movements of the second piston member and the hollow cylindrical portion in the peripheral directions of the second piston member and the hollow cylindrical portion.