| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of difficult attaching/detaching in a structure that a trap pipe is screwed to a fitting pipe not to allow bugs such as mosquitoes to enter indoors and bad odor to leak indoors in a conventional floor catch basin or the problem of high cost caused by taking much labor and processing cost because of requiring insertion force more than a predetermined value and of finishing up the floor catch basin formed of stainless by welding and mechanical processing in another conventional structure that a stainless cylindrical pipe is sealingly inserted into a stainless drainage pipe. SOLUTION: A main body of the floor catch basin and its drainage pipe are formed of FRP and a trap device is formed of PVC. A band shaped or circular sealing material for contact sealing property in mutual fitting is arranged at a lower part of a circular rising pipe of the trap device and the cylindrical rising pipe is fitted to the drainage pipe. An umbrella-shaped taper part is formed in the drainage pipe and the rising pipe is unforcibly fitted to the drainage pipe. COPYRIGHT: (C)2007,JPO&INPIT
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