| 摘要 |
PROBLEM TO BE SOLVED: To provide a filtering device which hardly causes clogging and facilitates maintenance. SOLUTION: This filtering device fixed in a waterway comprises a main plate-like body which has a tubular filter with a closed leading end inserted and fixed into an opened hole in such a manner that a tip is directed to the upstream side of drainage, and a blade which is formed of a rubbery elastic body integrated with the main body on the outer periphery of the main body. The filtering device can be installed and fixed in the waterway by inserting the blade into the waterway while bending it toward a lower part of a river. COPYRIGHT: (C)2009,JPO&INPIT
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