Patent ID: 7448326

Claim:
Apparatus for transporting printing paper rolls, said apparatus comprising: a frame for accommodating a printing paper roll; a moving mechanism comprising a plurality of running wheels mounted on said frame and supporting said frame on a floor, wherein said wheels can be aligned for travel in a first direction, and wherein, when said frame is lifted so that said wheels are above said floor, said wheels can be adjusted for travel in a second direction which is transverse to said first direction; at least one first rail which guides the frame during movement in the first direction; a current pick-up fixed to the frame for providing electrical energy to the frame during movement in the first direction, wherein the current pick-up is stationary during movement in the second direction; and a cable drum carried by said frame, said cable drum having a cable which is connected to the current-pick-up and can be unwound from the drum during movement in the second direction.