Patent ID: 8511406
Filing Date: 2013-08-20
Classification: B62B,Y10T

Abstract:
1. A motorized cart, comprising: a collapsible frame, the frame having a handle; a collapsible storage compartment connected to the frame; at least three wheels connected to the frame, the at least three wheels comprising two rear wheels disposed at a rear of the frame for rotating about a single axis and at least one front wheel positioned on the frame; and a drive compartment for housing a battery, a drive controller, and at least one motor electrically connected to the battery and the drive controller for driving at least one of the rear wheels, wherein the drive compartment is positioned on the frame to position the battery, the drive controller, and the motor below and forward of the rear wheel rotation axis when the cart is in an expanded, upright mode, thereby positioning a center of gravity of the cart forward of the rear wheel rotation axis to enhance stability in the expanded, upright mode; wherein the drive compartment is shaped and positioned on the frame to: wherein the drive compartment is positioned on the frame to substantially vertically align the center of gravity of the cart with the rear wheel rotation axis in a tilted mode, in which the cart operates on the two rear wheels.