| 摘要 |
PROBLEM TO BE SOLVED: To provide a timbering constructing heavy machine for which a function which can simply remove slight defects at the ground is added. SOLUTION: A timbering erector, a concrete spray arm, and an ascending/ descending man cage 5 are mounted on a base machine 2. In this case, a rock drill 20 which can be operated manually is arranged at the front of the man cage 5, and a driving hose 25 for the rock drill 20 is connected to a hydraulic drive source of the base machine 2 along an arm 6 which hoists the man cage 5 up and down. |
