| 摘要 |
The present invention relates to a crane. According to an embodiment of the present invention, the crane includes: a body for loading or unloading workpieces; a first driving unit connected to top of one side of the body to be joined to one of a pair of rails to be moved; a second driving unit connected to top of the other side of the body to be joined to the other of the pair of rails to be moved; and an auxiliary driving unit connected to the body to be placed between the first and second driving units and to be joined to an auxiliary rail placed between the pair of rails to be moved. |
