| 摘要 |
PROBLEM TO BE SOLVED: To provide a drilling machine for track/road use having no risk to interfere with passing railway vehicles when the drilling machine for track/road use performs a drilling work on one railway, even if by any chance a railway vehicle passes through the adjacent railway.SOLUTION: As for outrigger jacks, the drilling machine for track/road use has a pair of front outrigger jacks 23, 24 on a drilling machine body's leader 20 side and a pair of back outrigger jacks 25, 26 on the opposite side of the leader 20, and the back outrigger jacks 25, 26 are provided with folding mechanisms 30(31), 32(33), and 51(52). |
