| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide drainage for a water closet capable of excellently washing a toilet bowl. <P>SOLUTION: Drainage for a water closet has a descending flow passage 40 which descends downstream and communicates with a downstream side of an ascending flow passage 30 ascending downstream and communicating with the downstream side of a toilet bowl 10. The descending flow passage 40 has a shelf section 41 which is inwardly projected along an inner circumference of the descending flow passage 40. <P>COPYRIGHT: (C)2012,JPO&INPIT |
