| 摘要 |
PURPOSE: A safety device for construction equipment using electric power is provided to automatically stop construction equipment by turning off a main electric switch using a limit switch. CONSTITUTION: A safety device for construction equipment using electric power is composed as follows. A support(10) is installed on the ground for installing a boom for supplying electricity to construction equipment. A rotating unit is installed on the top of the support. A boom(30) is formed in the rotating unit and is vertically moved, like a seesaw. |
