Patent ID: 8016299

Claim:
An apparatus for shifting the center of gravity of a vehicle, said vehicle comprising a body and three wheels or more, the apparatus comprising: a movable frame having a certain shape and an upper portion, said frame movably connected, at one side, to a vehicle body in such a manner that a portion or all of the frame is movable to the left/right relative to the driving direction of the vehicle body; a control unit for controlling the left/right movement of the frame to shift the center of gravity of the vehicle body, wherein the control unit comprises: (i) a rotation body comprising a cylindrical portion and a center of rotation, wherein a portion of the inside of the rotation body including the center of rotation is open; (ii) a rotation bar coaxially coupled to the center of rotation of the rotation body to rotate with the rotation body: (iii) a first link member rotatably coupled, at its one end, to the rotation bar; and (iv) second link members crossed with each other, each second link member having opposite ends wherein one end is rotatably coupled to the other end of the first link member, and the other end of each second link member is rotatably coupled to the upper portion of the frame; wherein the control unit for shifting the center of gravity further comprises a ball screw device comprising a ball screw and a ball nut, the cylindrical portion of the rotation body further comprises a gear unit integrally or separately, and the ball nut is provided, at a position contacting the gear unit, with a linear gear unit engaged with the gear unit to cause the rotating operation of the gear unit.