Abstract: A wheeled truck including a platform defining a planar support surface having first and second opposite ends, two wheels attached to the platform at the first end thereof and two wheels attached to the platform at the second end thereof utilizes hinges for hingedly securing the two wheels located at the second end to the platform and a lever member for raising and lowering the second support surface end to thereby facilitate the loading and unloading of the truck. The hingedly-secured wheels are each pivotally movable relative to the platform between an operative condition at which the hingedly-secured wheels operatively support the second support surface end in an elevated condition for transporting purposes and a non-operative condition at which the hingedly-secured wheels are positioned so as to permit the second support surface end to be raised and lowered between the elevated condition and a lowered condition at which the support surface forms a ramp.

Abstract: A truck for moving a grand piano including a pair of side frame members for insertion under the piano, a pair of beams for connecting the side frame members to each other after the side frame members have been inserted, straps for attaching the piano to the truck, curved sections on the side frame members for pivoting the truck to a position wherein the side frame members orient the piano on its side while supporting the piano, selectively extensible casters on the side frame members for raising and lowering the truck relative to the floor with the piano mounted thereon, and hinges on the side frame members for folding them inwardly toward the piano when the piano is mounted on its side on the truck.