| 摘要 |
There is described a trolley (20) comprising a frame (22), at least four wheels (21) coupled to the frame for movement of the trolley (20) along a bearing girder (30), and a winch drum (30) rotatably mounted in the frame (22), around which a hoist rope or hoist chain (65) is wound. This trolley (20) is improved in that the winch drum (60) is provided with a helical groove for receiving the hoist rope (65), and in that a hold-down roller (70) is arranged along the winch drum (60) for holding down the hoist rope (65) in the grooves of the winch drum (60). As a result, it is accomplished that the trolley (20), at a constant or event increased hoisting capacity, can be reduced in a vertical direction so that a cargo vehicle can be loaded more efficiently. |
