| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify the structure of a segment holding mechanism by providing a surface of the segment with a lock recessed hole and a hollow recessed hole, and turning a head of a hoisting member inserted through the lock hole and the hollow hole so as to be engaged with the hollow hole. SOLUTION: A base frame is provided in a lower part of a carrier frame traveling on rails, and a hydraulic cylinder is installed in the base frame, and a plate frame-like base part 91 is connected to a tip of the cylinder through a horizontal pin freely to be vibrated and elevated. A hoisting member 21 is provided while passing through the base part 91 so that the hoisting member 21 is horizontally turned by the hydraulic cylinder arranged in a top surface of the base part 91. A surface of a segment 8 is provided with a lock hole 16 having a different vertical and lateral dimension and a hollow recessed hole 17 continued to the lock hole 16, and a head 19 of the hoisting member 21 is inserted into the lock hole 16, and the hoisting member 21 is turned at 90 degree so that a lock part 20 projected right and left is engaged with the hollow part 17, and the segment 8 is hoisted for transference. Consequently, structure of a holding mechanism is simplified by forming the segment 8 with the lock hole and the hollow hole.</p> |
