| 摘要 |
Safety device for the emergency interruption of the drilling manoeuvring in a drilling machine provided with a guide tower (17) (mast) and a device (10) for realizing the driving in the ground of drilling elements; the device comprises 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 said frame; a microswitch (23) being activated by the movements of rotation given to the door (11) for stopping at least some of the dangerous drilling manoeuvrings.
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