FOLDED ROLLER

摘要

PURPOSE: A foldable rolling device is provided to reduce working time by using three rollers. CONSTITUTION: A frame structure(12) includes a connection unit(10) in the front and a plurality of roller installation units(11) in the rear. A roller(13) is installed at each roller installation unit of a frame structure. At least one or more rollers are folded in a rotatable structure of the roller installation unit. A wheel(14) is installed in the frame structure. An actuator(15) folds the roller with the roller installation unit.