Patent ID: 6578931
Filing Date: 2003-06-17
Classification: A01B,B60B,Y10T

Abstract:
A drive wheel roller assembly comprising:a device having a motor and an axle connected to the motor, the axle having a radial aperture therethrough, a bearing attached to the axle, a wheel attached to the bearing for rotating the wheel on the axle, a wheel hub on the wheel which engages the axle, the wheel hub having a radial aperture for alignment with the axle aperture, a pin for extending radially through the aperture in the wheel hub and the axle when the apertures are aligned, a screw cap for attachment to the axle for engaging the wheel hub to keep the wheel on the axle such that when the pin is inserted in the apertures of the wheel hub and axle the wheel spins with the axle engaging the motor, and the wheel can rotate freely on the axle when the pin is removed to easily transport the device without having to turn the motor.