| 摘要 |
A stacker includes a frame, forks connected to the frame and provided with a support part having at least one support wheel, and a carrier part provided movably relative to the support part for carrying the goods for displacement. The carrier part is provided with a double roller device. The double roller device includes a number of first roller elements located a distance from each other and having a roll surface, and a number of second roller elements located above the first roller elements and having a roll surface. The roll surface of the first roller elements lies against the roll surface of the second roller elements. The roller elements engage movably in vertical direction on the frame in a guided manner so as to extend the second roller elements in selective manner above the upper surface of the load platform. |
