| 摘要 |
A safety device for the emergency interruption of the drilling maneuvering in a drilling machine is provided with a guide tower or mast (17) and a device (10) for realizing the driving in the ground of drilling elements. The device includes at least a frame (12) fixed to the mast and provided with at least an arm or a door (11) rotating around an axis (Y) with respect to the frame. A microswitch (23) is activated by the movements of rotation given to the door (11) for stopping at least some of the dangerous drilling maneuvering.
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