| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to pass through a tube or cable smoothly even if protective pipes are bent, by constructing a curve guide with a bent guide pipe to both ends of which the protection tubes are connected and a single or a plurality of guide rollers installed in a bent section in the guide pipe. SOLUTION: A bent guide pipe 1 made of, for example, polyvinyl chloride is provided at its both ends with connection sections to which ends of protective pipes 2, 2 are to be connected. The inner diameter of the guide pipe 1 at the connection sections is nearly the same as the outer diameter of the ends of the protective pipes 2, 2 and there is no step generated between the ends of the protection pipes 2, 2 connected to the connection sections and an inner wall of the guide pipe 1. On the inside of a bent section 1b within the guide pipe 1, a guide roller 3 with its central section constricted is installed so as to rotate in the feeding direction of a cable 5 or like which is to be passed through the guide pipe 1. Since the guide roller 3 rotates, the cable 5 or the like can be smoothly passed through the guide pipe 1.</p> |
