B - Operations – Transporting – 60 – K
Patent
B - Operations, Transporting
60
K
180/50
B60K 17/04 (2006.01) B60K 1/00 (2006.01) B60K 17/08 (2006.01)
Patent
CA 1080631
ABSTRACT OF THE DISCLOSURE Disclosed herein is a vehicle comprising a frame, a drive wheel supported by the frame, a direct current motor supported by the frame, a drive train connecting the direct current motor and the drive wheel and including a variable speed "V" belt drive with a rotatably carried pulley including a non-axially movable sheave and an axially movable sheave, and a spring biasing the axially movable sheave away from the non-axially movable sheave, a hydraulic circuit for regulating the axial position of the axially mov- able sheave and including a pump driven by the motor, a hydraulic cylinder piston assembly in communication with the pump and mechanically connected to the axially movable sheave for applying a force urging the axially movable sheave toward the non-axially movable sheave, and a control for regulating the pressure of the fluid in the hydraulic cylinder pis- ton assembly to regulate the axial force applied to the axially movable sheave.
295213
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