| 摘要 |
<p>Pneumatic torpedo-shaped striking tool with reversal mechanism for making holes in the ground, comprising a striker component which can move under air pressure, is located in a torpedo-like housing and the rear side of which comprises an open tubular section, and a hollow shank, the front side of which extends into the tubular section of the striker component and is attached, in a position which can be adjusted between a first limit position and a second limit position, in a sleeve which is connected to the housing, which sleeve comprises a piston element; in the said second limit position, compared to the said first limit position, the shank has been displaced at least in the axial direction with respect to the piston element, and the reversal mechanism is designed to move the shank between the said two limit positions.</p> |
