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1. 发明专利

JP2000282560A CURB STRUCTURE IN COLLECTING SIDE DITCH 失效
公开(公告)号：JP2000282560A
公开(公告)日：2000-10-10
申请号：JP8973199
申请日：1999-03-30
申请人： CHIBA PREFECTURE CONCRETE SEIH
发明人： YASUMI YOSHIKAZU
IPC分类号： E01C11/22 , E03F5/046 , E03F5/06
摘要： PROBLEM TO BE SOLVED: To improve water collectivity of a collecting side ditch, and cleaning workability of a culvert-type side ditch linearly connected to the collecting side ditch, by attaching, in one body, a curb structure on an upper surface of a grating openably attached to the upper opening of a collecting side ditch, via attaching tools. SOLUTION: Metal fittings 8 are set on the rear surface of a grating G beforehand in a manner corresponding to through holes of seating portions 5a, 5b of a curb structure 4 and aligning with curbs 2b, 3b of respective culvert- type side ditches 2, 3. Then, the curb structure 4 is mounted on the upper surface of the grating G which is adjusted such that the through holes of the seating portions 5a, 5b are opposed to through holes of the metal fittings 8. Then, a connecting bolt 9 is inserted from each through hole of the metal fitting 8 and through each through hole of the seating portion 5a, 5b. Next, the front end of the bolt 9 is inserted into a flat washer 11 and screwed into a nut 10. When the side ditches 2, 3 are cleaned, the grating G is rotated via a hinge 7, thereby carrying out cleaning through an opening 1b. Thus, cleaning workability can be improved.

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