Pulley structure of belt driven continuously variable transmissi

Details Pulley structure of belt driven continuously variable transmissi Pulley structure of belt driven continuously variable transmissi

1999-03-17

2000-11-28

Marmor, Charles A

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Fluid pressure actuator for adjustment of member

F16H 5556

Patent

active

061528439

ABSTRACT:
A pulley structure of a belt driven continuously variable transmission includes a fixed sheave, a moving sheave, a cylinder member fixed to the moving sheave, a piston member fixed to a pulley shaft and a hydraulic actuator formed by the cylinder member and the piston member for actuating the cylinder member so as to move the moving sheave axially on the pulley shaft. The pulley structure further includes a mating section integrally formed with the cylinder member, a mating surface on the mating section and formed annularly around and perpendicularly to the pulley shaft, a flange surface provided on the moving sheave and formed annularly around and perpendicularly to the pulley shaft, a mating means for mating the mating surface with the flange surface so as to have a tight contact therebetween, a bolt hole bored on the mating section, a tapped hole provided on the moving sheave, and a fastening means for fastening the mating section to the moving sheave with bolts. The surface of the mating section opposite the mating surface is part of a wall defining the oil pressure chamber of the hydraulic actuator.

REFERENCES:
patent: 3014378 (1961-12-01), Bruet
patent: 4348197 (1982-09-01), Oliver
patent: 4560369 (1985-12-01), Hattori
patent: 5427578 (1995-06-01), Iijima
Patent Abstracts of Japan, Publication No. 01026062, dated Jan. 1989.
Patent Abstracts of Japan, Publication No. 61065953, dated Apr. 1986.

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