| 摘要 |
PROBLEM TO BE SOLVED: To provide a caisson excavator capable of preventing the effect of vibration of a swing body in an excavator and transmitting a picture without blurring. SOLUTION: A circular arc or a circular camera truck rail 15 is mounted to a traveling body 2 of an excavator D, and a camera truck 16 is provided along the camera truck rail 15 in a movable manner. A joint mechanism 19 for moving the camera truck 16 is provided between a swing body 4 of the excavator D and camera truck 16 by synchronizing the swinging direction of the swing body 4, and a TV camera 28 is mounted on the camera truck 16.
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