| 摘要 |
PROBLEM TO BE SOLVED: To hygienically and surely clean a hole to be cleaned such as an exhaust duct by providing a cleaning apparatus main body under freely running condition by a running means while the inner face of the hole to be cleaned is cleaned by a cleaning means. SOLUTION: A rod 16 is advanced by actuating a cylinder device 15 and a running means 7 is moved to the outside of the side of a cleaning apparatus main body 2, thereby each belt 13 is brought into press-contact with the inner face 6a of an exhaust duct 6. In addition, a cylinder device 27 is actuated to advance a scraper 22 outward and it is brought into press-contact with the inner face 6a of the exhaust duct 6. Under this condition, the apparatus is made to automatically travel along the exhaust duct 6 while the belt 13 is rotated by means of a pair of pulleys 10a and 10b and deposit stuck and accumulated on the inner face 6a of the exhaust duct 6 is scraped by means of a scraping part 25 of a scraper 22. It is possible thereby to hygienically clean the inner face 6a over the whole length even if the distance of the exhaust duct 6 is long. |
