| 摘要 |
The indoor part (A) comprises an elongated stay (2, 3) for installation between the floor and the roof or alternatively between opposite walls in front of an opening in the building outer wall. On the stay is fitted a joint unit (6) movable along it, to which the outdoor part (B) comprising a second stay (7, 9) is rotatably fixed. On it is arranged a machine fixture (14) for a drilling machine (15) with a drill (18) facing the wall in the usage position. A feed device (13, 19) for the drilling machine is also provided on the machine fixture. |
