| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wide flexible protecting tube for a water pipe, allowing the water pipe to be easily inserted through. SOLUTION: In this protecting tube 2 for protecting the water pipe 1, recesses and projections 3, 3 along a circumferential direction so as to be flexible are continuously arranged in a longitudinal direction, and two tube bodies 4, 4 circular in cross section orthogonal to the longitudinal direction and provided with the recesses and projections 3, 3 are provided side by side in a lateral direction Q2. The tube bodies 4, 4 are integrally formed. The protecting tube 2 is further provided with ribs 6, 6 for connecting the projecting parts 3a, 3a of the recesses and projections 3, 3 along the longitudinal direction to regulate flexure around the lateral axis in the lateral direction Q2 as an axis.</p> |
