Patent ID: 6152843
Filing Date: 2000-11-28
Classification: F16H

Abstract:
A pulley structure of a belt driven continuously variable transmission, comprising:a pulley shaft;a fixed sheave formed integrally with the pulley shaft;a moving sheave movably mounted on the pulley shaft, wherein a groove is defined between the moving sheave and the fixed sheave, and wherein an annular flange surface is provided on a surface of the moving sheave opposite the groove;a hydraulic actuator for moving the moving sheave toward and away from the fixed sheave, the hydraulic actuator including:a cylinder member fixed to the moving sheave, wherein the cylinder member includes an annular mating section, anda piston member fixed on the pulley shaft and engaged with an inside surface of the cylinder member so as to define an oil pressure chamber for the hydraulic actuator between the piston member and the annular mating section of the cylinder member; anda bolt extending from within the oil pressure chamber and through the annular mating section of the cylinder member for fastening the annular mating section to the annular flange surface of the moving sheave.