| 摘要 |
PURPOSE:To prevent an accident resulting in injury or death, which is caused by the falling of a suspended tool. CONSTITUTION:A falling detector 2 for detecting the falling of the suspended tool fixed and suspended on a coiling is provided with a frame 3, stretching members 4a and 4b stretched inside of the frame 3, pulling switches 6a and 6b connected between the stretching members 4a and 4b and the frame 3, a suspending string 7 suspending the suspended tool by being suspended vertically from the stretching members 4a and 4b and an warning device warning by the working of the pulling switches 6a and 6b. |
