Patent ID: 7036604

Claim:
Wheel structure for attachment to forward and aft spaced, transversely extending frame members of a tool-supporting implement, the implement having a hitch adapted for connection to a towing vehicle for movement forwardly over the ground in a raised transport position and forwardly over a field in a lowered working position with tools engaging the soil, the wheel structure comprising: a single wheel arm; bracket structure connected between the frame members, the bracket structure comprising first and second upright plates extending between and projecting above the forward and aft frame members, the bracket structure connecting the forward and aft frame members; a lift arm having an upper aft end located between the first and second upright plates, the upper end pivotally connected to the bracket structure adjacent the aft frame member, and a lower end extending forwardly and downwardly from the upper aft end; wheel structure connected to the lower end of the wheel arm; motor structure connected between the bracket structure and the wheel arm between the forward and aft frame members for pivoting the single wheel arm between a field-working position wherein the wheel structure extends forwardly of the forward frame member and transport position wherein the wheel structure is located below the frame members, wherein the motor structure and the lift arm are supported from the upright plates and forces between the motor structure and lift arm are internalized within the upright plates.