Variable diameter pulley

Details Variable diameter pulley Variable diameter pulley

1998-06-24

2000-01-25

Graysay, Tamara L.

Endless belt power transmission systems or components

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

Speed responsive

474 17, 474 46, F16H 5900, F16H 6100, F16H 5556

Patent

active

060172851

ABSTRACT:
A variable diameter pulley according to the present invention has a pair of pulley bodies each axially movably fitted around a rotation shaft. A power transmission ring is held between power transmission surfaces formed in a tapered shape on opposed surfaces of the pair of pulley bodies. A belt is engaged with the outer circumference of the power transmission ring. The power transmission ring is movable eccentrically with respect to an axis of the pulley bodies. The pulley bodies are biased toward each other by a belleville spring. The belleville spring couples the pulley bodies to each other for power transmission. A torque is transmitted between the belt and the rotation shaft through the power transmission ring, the pulley bodies, the belleville spring and a coupling member.

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