公开(公告)号：US6131616A

公开(公告)日：2000-10-17

申请号：US326690

申请日：1999-06-07

申请人： Yoshiaki Tatsuta ,  Kazuya Yamashita ,  Takeshi Mochizuki ,  Kazumasa Nakayama

发明人： Yoshiaki Tatsuta ,  Kazuya Yamashita ,  Takeshi Mochizuki ,  Kazumasa Nakayama

IPC分类号： F16L9/06 ,  F16L11/11

CPC分类号： F16L11/11

摘要： A corrugated synthetic resin pipe comprises a pipe wall including sectionally rectangular wall portions and sectionally circular wall portions disposed alternately in a longitudinal direction of the pipe. Each of the sectionally circular wall portions has an annular projected portion disposed at a substantially center of the sectionally circular wall portion between adjacent sectionally rectangular wall portions in the longitudinal direction, to thereby prevent parallel layout or stack layout of pipes from being disturbed.

摘要翻译： 波纹合成树脂管包括管壁，该管壁包括沿管的纵向交替设置的截面矩形壁部分和截面圆形壁部分。 每个截面圆形壁部分具有环形突出部分，其设置在纵向方向上的相邻截面矩形壁部分之间的截面圆形壁部分的大致中心处，从而防止管道的平行布局或堆叠布局被扰乱。