Method and device for working rock

摘要

Method and rig for driving tunnels, galleries, shafts or the like said rig having a movable base unit (2) which over a support unit supports a carrying unit which in turn carries a cutting head having outwardly directed cutting elements, the method including: rotating the cutting head (4) around a general axis of rotation (R) and applying the cutting head against a rock surface to be worked, the method further including: swinging the carrying unit into a first chosen mutual position in respect of the support unit, rotating the support unit into a second chosen mutual position in respect of the base unit around an axis which is essentially longitudinal in respect of the base unit, whereby an angle of operation of the cutting head is controllable.