| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce cost by improving assemblability by reducing the number of part items, and to improve working efficiency by simplifying construction.SOLUTION: A drain pipe is buried in a floor slab 1 of a road formed by laying a water permeable surface layer 2 on the concrete floor slab 1, and is inserted into a through-hole 3 formed in the floor slab 1 and having the axis in the vertical direction, and is held by the through-hole 3 via a filler 4, and drains water to the outside of the floor slab 1 by receiving the water guided by a water permeable-flexible water guiding rod 5 interposed between the floor slab 1 and the surface layer 2, and comprises a pipe body 10 having an outward flange 12 on the upper end and integrally formed in a cylindrical shape of being capable of flowing down the water, a seal member 20 provided on the outer periphery on the lower end side of the pipe body 10 and sealing the filler 4 by elastically contacting with the through-hole 3 and a suspension member 30 locked on the opening edge of the through-hole 3 on the floor slab 1, capable of suspending the pipe body 10 and capable of fastening the water guiding rod 5.</p> |
