| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a drainpipe for foundation burying which can mount a inner pipe to a sleeve pipe easily. <P>SOLUTION: In a drainpipe 2 for foundation burying, a bending radius S10 of a main body 11 of a sleeve pipe 10 and a bending radius S11 of a main body 21 of an inner pipe 20 are set to be substantially equal to each other, and furthermore, in the state in which the inner pipe 20 is mounted in the sleeve pipe 10 which is buried in a foundation 1 of a building in a penetrating manner, a tube axis L1 of the sleeve pipe 10 and a tube axis L2 of the inner pipe 20, in other words, tube axes of the circular arcuate shaped main body 11 and main body 21 substantially coincides with each other. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
