Patent ID: 6662889
Filing Date: 2003-12-16
Classification: B60G,B62D

Abstract:
A wheeled structure, comprising:a body having at least first and second side portions; first and second sets of wheel elements rotatably attached to the first and second side portions, respectively; a flipper element pivotally coupled to a portion of the body, said flipper element having wheels elements of said first and second sets of wheels elements rotatably coupled thereto; and a drive module integrated in combination with the flipper element to control the movement of the flipper element between a stowed position and a forward position wherein said wheel elements of said flipper element can make selective contact with a ground plane; wherein each wheel element of said first and second sets of wheel elements has a defined radius, and a portion of at least one wheel element in each of the first and second sets of wheel elements overlaps a respective adjacent wheel element of said first and second sets of wheel elements with the flipper element in the forward position.