Endless belt power transmission systems or components – Pulley with belt-receiving groove formed by drive faces on... – Load responsive
Patent
1994-07-13
1995-06-27
Schoeppel, Roger J.
Endless belt power transmission systems or components
Pulley with belt-receiving groove formed by drive faces on...
Load responsive
474 28, 474 46, F16H 6100
Patent
active
054275784
ABSTRACT:
In a pulley unit of belt-type continuously variable transmission, wherein a movable sheave on a pulley shaft is moved toward and away from a stationary sheave by means of a hydraulic servo device, and a movable cylinder secured to the movable sheave defines a hydraulic chamber between itself and a stationary plunger on the pulley shaft. The movable cylinder is of a ring-shape having an enlarged-diameter cylindrical portion, a reduced-diameter cylindrical portion, and a back wall portion integrally joining the two cylindrical portions radially. The reduced-diameter cylindrical portion is fitted on a hub of the movable sheave. A detachable cover member is provided around the cylinder and the plunger to define a hydraulic balance chamber. The movable sheave can be used commonly for different sizes of the movable cylinder, and the interior of the servo device can be exposed for maintenance by removing the cover member.
REFERENCES:
patent: 4552545 (1985-11-01), Koivunen
patent: 4575364 (1986-03-01), Lamers
patent: 4639238 (1987-01-01), Jaccod
patent: 4753627 (1988-06-01), Kawamoto
patent: 4884997 (1989-12-01), Hattori
patent: 5182968 (1993-02-01), Mott
patent: 5221235 (1993-06-01), Ogawa
Fuji Jukogyo Kabushiki Kaisha
Schoeppel Roger J.
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