| 摘要 |
PROBLEM TO BE SOLVED: To provide a grating lid capable of suppressing the deposition of foreign matter on the water guide surface of a guide member while increasing a rain water swallowing capacity by the guide member. SOLUTION: This grating lid comprises a plurality of main bars 15 extending in the water flow direction on the water flow surface and side bars connecting the longitudinal ends of the main bars 15 to each other. The guide member 17 having the water guide surface 17a tilted larger than the water flow gradient of the water flow surface is extended from the side members on the upstream side in the flowing direction to between the main bars 15. The guide member 17 comprises an opening 18 for dropping foreign matter falling on the water guide surface 17a to the lower side of the guide member 17 at an intermediate part in the flow direction. COPYRIGHT: (C)2007,JPO&INPIT
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