| 摘要 |
PROBLEM TO BE SOLVED: To perform rust removing work for a ship body outer board by a remote control operation. SOLUTION: A tow truck 1 attracted to the surface of a ship body outer board 6 to travel itself is constructed in such a manner that rubber wheels 3a and 3b independently driven by motors 14a and 14b are provided in the front left and right positions of a truck frame 2, a caster 4 is provided in the center of a rear portion, and a permanent magnet 5 is provided in a lower surface. To be protruded downward from the opening 20 of a truck frame 19, a cleaning brush 9 driven by a cleaning brush driving motor 8 is provided to form a cleaning truck 7. The cleaning truck 7 is connected to the tow truck 1 by a hinge 27, and the cleaning brush 9 is always pressed to the ship body outer board by a spring 29. By a control board 10, the driving of each of the motors 14a and 14b and the cleaning brush driving motor 8 is performed from an operation panel 11 based on a remote control operation.
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