Patent ID: 6601663
Filing Date: 2003-08-05
Classification: B62D

Abstract:
A drive system for use on an associated vehicle, the vehicle including a frame, an engine operatively attached to the frame, first and second ground engaging means operatively connected to the frame for use in providing mobility to the vehicle, the drive system comprising:a pumping means operatively driven by the associated engine, the pumping means having a vehicle-speed input, the pumping means being operable to deliver output power responsive to the vehicle-speed input; first and second double acting actuators, wherein the output power from the pumping means is operatively communicated in parallel to the first and second double acting actuators, the first double acting actuator having a first steering input that is selectively adjustable and a first steering output responsive to the first steering input, the first steering output being driveably connected to drive the first associated ground engaging means in forward and reverse directions, the second double acting actuator having a second steering input that is selectively adjustable and a second steering output responsive to the second steering input, the second steering output being driveably connected to drive the second associated ground engaging means in forward and reverse directions, and wherein the first and second actuators are independently driven; a steering member selectively adjustable in first and second steering directions, the steering member being operably connected to engage the first and second steering inputs, wherein, when the steering member is adjusted in the first steering direction, the first steering output is increased with respect to a forward direction and the second steering output is decreased with respect to the forward direction, and, wherein, when the steering member is adjusted in the second steering direction, the first steering output is decreased with respect to a forward direction and the second steering output is increased with respect to the forward direction; and, an accelerator member operably connected to engage the vehicle-speed input.