| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a side ditch block having very little rattle and slippage of a cover member and an excellent water catchment function. <P>SOLUTION: A side ditch block 10 consists of: a body member 20 which has a U-shaped drain flow passage 11 and has cover receivers 23, 24 protrusively provided along the longitudinal direction on inner faces 21a, 22a of opposed side walls 21, 22, respectively; and cover members 40 fitted in an upper surface opening part 30. The side ditch block 10 comprises: recess-protrusion fitting structures (protrusions 41 and recesses 25, etc.) formed in a region where the cover members 40 and cover receivers 23, 24 face each other when the cover members are fitted in the upper surface opening part 30 of the body member 20; curved opening parts 13 formed on a drain flow passage 11 side of upper faces 21b, 22b of the side walls 21, 22 of the body member 20, and the like; and passage grooves 15 formed on the inner faces 21a, 22a and the cover receivers 23, 24 of the side walls 21, 22 in a state communicating with the curved opening parts 13, etc., and the like. <P>COPYRIGHT: (C)2013,JPO&INPIT |
