COUPLING SLEEVE FOR CONNECTION OF A THREADED ROCK BOLT TO AN IMPACT ROCK DRILLING MACHINE

摘要

Coupling sleeve for connecting a threaded rock bolt (1) to an impact rockdrilling machine (2) comprising a first part (3) provided with an internalthread (4) for connection of the rock bolt (1) and a second part (5) providedwith an internal thread (6) for connection of the rock drilling machine (2),whereby the second part (5) comprises a transversely to a longitudinal axis(9) on the coupling sleeve arranged locking device (7) which cooperates with aregion (8) on the rock drilling machine (2) for preventing that the couplingsleeve and the rock drilling machine (2) are separated.