Cable laying way the cable protection tube , piping and its structure

摘要

PROBLEM TO BE SOLVED: To provide a cable protection pipe which enables cables housed in the protection pipe to be easily taken out without using a special tool, has a simple configuration and is excellent in workability.;SOLUTION: The protection pipe 1 is corrugated and elastic, wherein high parts 5 and low parts 7 are alternately formed along an axial direction on the outer circumference. A protruding part 3 protruding to the outer circumference of the protection pipe 1 at predetermined intervals is formed in the axial direction of the protection pipe 1. The protruding part 3 protrudes outward from the high parts 5 of the protection pipe 1, and are arranged side by side in substantially parallel along the axial direction. The outer diameter of an imaginary circle (inner circumferential circle 13 of the apex of the protrusion) across the inner surface position of the apex of the protrusion 3 is larger than the diameter of the maximum outer circumferential circle (i.e., the outer diameter of the apex of the high part 5) in a part other than the protrusion 3 of the protection pipe 1. Accordingly, the protruding part 3 protrudes from at least the outer circumferential circle of the high parts 5.;COPYRIGHT: (C)2011,JPO&INPIT