| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin conduit pipe and a piping structure capable of improving an exterior appearance of the whole piping, being inexpensively installed, being easily connected to each other, and allowing a cable to be smoothly inserted therethrough.SOLUTION: As to a conduit pipe 21, its inner and outer surfaces are smoothly formed, the conduit pipe is formed of polyvinyl chloride having a lower rubber hardness than that of a hard polyvinyl chloride conduit pipe 11 adaptable to a JIS C8430 Standard, an outer diameter is the same as that of the hard polyvinyl chloride conduit pipe 11 and an inner diameter is smaller than that of the hard polyvinyl chloride conduit pipe 11 while securing a cable housing space in the inside of the conduit pipe, and a wall thickness of the conduit pipe is made to be smaller than that of the hard polyvinyl chloride conduit pipe 11. Thus, the flexible synthetic resin conduit pipe 21 has a flexibility allowing it to be bent by hands and a rigidity securing a space for housing a cable without being flatly squashed even when the cable is bent at a bending radius allowing the cable to be inserted through the conduit pipe 21. |
