| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a drain pipe joint which can reduce slab-cutting work as much as possible when a double pipe drain system is remodeled into a single pipe drain system, and to improve construction performance by weight reduction in piping work in a new construction. <P>SOLUTION: A cylindrical trunk 2 has an outer diameter which is substantially larger by one size in a standard size than the outer diameter of a vertical pipe P1 connected thereto. A lateral branch pipe connection part 3a has a flange 33 at its end at a side connected to a lateral branch pipe P2 with a diameter wider than the diameter of the other portion, and a curved cylindrical portion 31 communicating with the cylindrical trunk 2 and curving downward toward the cylindrical trunk 2. The lower end of the flange 33 is located below the curved lower end of the curved cylindrical portion 31. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
