| 摘要 |
PURPOSE: To surely clean the inside of the tube of a shock tunnel and to well maintain the operability and reproducibility of the shock tunnel by a method in which after a small-sized traveling device being made to travel in a tube to transfer a drive transmission part from one end to the other end of the tube, a cylindrical object is extracted through the drive transmission part. CONSTITUTION: After the arrival of a small-sized traveling device 8 at the end of a tube on the opposite side, a drive transmission part 4 is removed from the traveling device 8, and an extraction driving device 10 of a cleaning tool 1 is fixed on the end surface of the tube. The driving device 10 is constituted by installing a winding drum 6 for taking up the transmission part 4, a motor 5 for rotating the drum 6, and a belt 22 which transmits the drive of the motor 5 to the drum 6 on a base 7. The transmission part 4 which was connected to the traveling device 8 is attached to the drum 6, the motor 5 is operated, and the transmission part is taken up. Then, the cleaning tool 1 makes a cloth surface contact the inner surface of the duct to drive the inside of the duct to wipe off dirt on the inner surface of the tube. |
