| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a draining header which can avoid a high-water state of a header main body even if waste water flows from each draining branch pipe into the header main body at the same time, and prevents rupture of a trap arranged in a drainage system. <P>SOLUTION: The draining header is formed of the cylindrical header main body 11 having a receiving port 111 at one edge thereof and an insertion port 112 at the other edge thereof, and a plurality of branch pipe joint portions 12 protruded from a side wall of the header main body 11. The header main body 11 has an egg-shaped cross section and radius of curvature R2 of a lower inner surface of the header main body 11 is smaller than the radius of curvature R1 of an upper inner surface of the same. <P>COPYRIGHT: (C)2004,JPO</p> |
