| 摘要 |
PROBLEM TO BE SOLVED: To provide a sedimented sand scraper capable of being driven by avoiding a scraping means to a high level even after the occurrence of heavy rain and utilized as it is without requiring artificial work at all to be subjected to spraying operation. SOLUTION: The sedimented sand scraper is equipped with the scraping means which advances through a water channel equipped with a sand collecting pit to which a sand lift means can be faced to scrape up sedimented sand moved in a length direction and deposited in the water channel toward the sand collecting pit to drop it in the pit. The scraping means can be altered to low and high levels in the height. COPYRIGHT: (C)2008,JPO&INPIT
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