| 摘要 |
PROBLEM TO BE SOLVED: To provide a drilling device excellent in stability and workability which can be fixed to a slope surface and stabilized at a predetermined angle only by slidingly moving a guide cell forward and pressing the entire device against the slope surface, and can perform drilling accurately and rapidly by a small number of workers. SOLUTION: The drilling device 1 for drilling a hole in the slope surface in the state hung by a crane or the like comprises a base frame 2 having wire connecting parts 3a, 3b on the front and rear parts for use in hanging, the guide cell 7 arranged on the base frame 2 to be freely movable back and force, a drifter 9 arranged on the guide cell 7 to be freely movable back and forth, a guide cell advancement/retraction drive part 4 for moving the guide cell 7 back and forth, a slope pressing part 20 arranged at a front end part of the guide cell 7, an insertion opening part 22 formed in a substantially center part of the slope pressing part 20, and a plurality of abutting parts 23a, 23b, 24 arranged around the insertion opening part 22 of a front face part of the slope pressing part 20. COPYRIGHT: (C)2007,JPO&INPIT
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