| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate work of inserting a fluid pipe through a shield tube by forming the tip of the fluid pipe in such shape as to have a plurality of inclined faces in the case of executing double piping for inserting a flexible fluid pipe for making liquid such as hot water or water pass through, through a flexible shield tube for piping. SOLUTION: In a piping for connecting a fluid pipe 2 taken out of a header of a water supply source, to each indoor feed water instrument, the fluid pipe 2 is to be a pipe made of flexible resin such as polybutene or cross-linked polyethylene, and piped in a flexible shield tube 1 made of a resin. The shield tube 1 is fixed in a suitable place under a floor or in a wall, and a muffling tube 5 is mounted in a space formed between the fluid pipe 2 and the inner surface of the shield tube 1. In this case, the tip of the fluid tube 2 to be inserted in the shield tube 1 is formed to have a plurality of inclined faces 2a. Even at, a shield tube part bent at 90 deg., the fluid pipe 2 can therefore be smoothly inserted without being caught by the rugged inner surface of the shield tube 1.</p> |
