| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a corrugate pipe with a favorable electric wire drawing property. SOLUTION: This corrugate pipe 10 has a pipe wall consisting of large diameter parts 12 arranged alternately in a longitudinal direction as an independent ring shape part respectively and small diameter parts 14 with a smaller diameter than those of the large diameter parts and the large diameter part is constituted by both base end parts connected to the small diameter parts of both sides, the largest diameter edge part having the largest outer diameter and connection walls for connecting both. Suppose the distance between the outer wall surfaces of both base end parts of the large diameter part measures along the longitudinal direction of the corrugate pipe is WB, the width of the largest diameter edge part is WT and a pipe wall thickness is T staying, a mutual relation is regulated by 0.4WB>=T>=0.4WT.</p> |
