| 摘要 |
The apparatus of the invention is in the form of a pistol that comprises a body (1), a gripping handle (Ic) and a control member (4), wherein said body (1) coaxially includes a protruding sighting hollow rod (2) having at the free end thereof a barrel (3) containing the threads, said rod (2) being connected to a means enabling, under the action of the control member (4), the movement of a thread ejection means (13) for forming a turn at the outlet of the barrel (3), the barrel (3) being mounted at the end of a translation-fixed axis (5) and inserted inside the rod (2), and the other end of said axis (5) interacting with means for partially rotating the same as well as the barrel (3), when releasing said control member (4), in order to position another thread opposite said ejection means. |
