Patent ID: 7438145

Claim:
A vehicle adaptable to various terrains, the vehicle comprising a frame and two rolling sets, with each of the two rolling sets connected to the frame, wherein each of the two rolling sets comprises: first and second legs pivotally connected to the frame, with the first and second legs pivotally movable independent of each other, wherein the first and second legs each comprises first and second sections connected to each other, with the first and second sections each having first and second ends, with the second ends of the first and second sections of the first leg connected to each other, with the second ends of the first and second sections of the second leg connected to each other, with the first sections of the first and second legs each defining a slot; first and second casters, with the first caster connected to the second section of the first leg, with the second caster connected to the second section of the second leg; a motor connected to the frame; a pin carried in the frame and extending through the slots of the first and second legs, with the pin having a diameter, wherein lengths of the slots are a multiple times greater than the diameter of the pin, wherein the motor is moved when the first and second legs are pivoted; and a wheel operably connected to the motor, wherein the first and second casters and the wheel grip the ground firmly when the first and second casters go one of an up direction and a down direction.