| 摘要 |
<p>PROBLEM TO BE SOLVED: To smoothly elevate/lower a movable part of a branching device in a pipe inside repairing machine. SOLUTION: The branching device 2 provided at the middle of a repairing machine body comprises a fixed part integrated with a supporting member 9 having a ramp on an upper part of a barrel part 6 accommodating a monitor camera, the movable part with a top part 3' of a branch sleeve 3 tightly fixed thereto between a lid member 12 having a window glass in the center and a ring-like suppressing member 13, and an elevating/lowering guide mechanism 14 comprising a pair of spring mechanisms 16 facing the barrel part 6 in its longitudinal direction and with a free end part of a spiral spring 15 stopped to a facing surface side of the movable part.</p> |
