| 摘要 |
The device comprises a drill support 11 which can be indexed between a drill position and an injection position. The indexing is done by means of a hydraulic cylinder 12 which turns an attachment 13 about an axle 10. A second hydraulic cylinder 14 arranged between the attachment 13 and the drill guide 20 is used for pivoting the drill support aside so that an anchoring bolt 8 can be driven past the drill support. <IMAGE> |
