| 摘要 |
PROBLEM TO BE SOLVED: To improve workability of a crane device.SOLUTION: A trolley 106 is movable along a drawing direction of a girder, and a camera fitting part 158 and a hanger 108 are attached to the trolley. First and second cameras 114 are attached to the camera fitting part 158. In this respect, the first and second cameras are separately attached at positions of both sides of the hanger 108. An operator performs alignment of the hanger 108 and a coil 102 while confirming two images comprising a first image obtained from the first camera and a second image obtained from the second camera. |
