| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a guide pipe which is concurrently provided with sufficient flexibility, weather resistance, and pressing resistance, also superior in insertion ability, for instance, suited as a cable protecting material for a communication optical fiber cable or the like. SOLUTION: In a cable protecting guide pipe formed by a resin-made flexible pipe having a helical structure, the flexible pipe is constituted by a resin with shore hardness of 50 or more and 80 or less, also to have the helical structure satisfying a condition, 0.76<=(a×b)/(c×d)<1.80..., where a = groove depth (mm), b = average internal diameter (mm), c = thickness (mm) and d = pitch (mm).</p> |
