| 摘要 |
PROBLEM TO BE SOLVED: To provide resin piping for floor heating enabling the work for integrating two resin pipes and a signal wire for a temperature sensor and turning them into a unit simply without winding a tape around them. SOLUTION: Two resin pipes 11 are arranged at a fixed interval, and melted resin of polyethylene is bonded and is fused at a fixed interval like a plot using a two-layer pipe whose outer layer is made of polyethylene to which carbon black is added and whose inner layer is made of cross-linking polyethylene. One signal wire 13 for the temperature sensor passes through between fused parts 12, is stretched over the fused parts 12 by meandering alternately, and is attached. COPYRIGHT: (C)2004,JPO
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