Patent ID: 6269898
Filing Date: 2001-08-07
Classification: B62M

Abstract:
A unitary power module for rotating a wheel of a wheeled vehicle comprising:a target sprocket defining a generally disk shaped member having a center opening to allow said target sprocket to be placed about a wheel axle of said wheel with said wheel axle supported on the frame of the vehicle, said target sprocket having a target coupler engagable to the wheel to enable said target sprocket to be substantially concentrically attached to said wheel upon engagement with said target coupler to said wheel; anda mounting frame securable to the frame and rotatably attached to said target sprocket to allow for aligned independent-rotation of said target sprocket on said mounting frame, said mounting frame disposed to receive an electric motor enabling a pinion sprocket affixed on said electric motor to propel said target sprocket and rotate said wheel, said mounting frame providing a single point of reference for aligning said pinion sprocket with said target sprocket.