| 摘要 |
PROBLEM TO BE SOLVED: To provide a water closet device capable pf preventing reduction in an instantaneous flow rate of water supplied to a toilet bowl body, by restraining generation of an air reservoir on the inside of a throat pipe, even when using the throat pipe having an extraction gradient caused when molding the throat pipe.SOLUTION: A water closet device uses the jet pump action, and is constituted so as to be capable of discharging an air reservoir generated on the inside of a throat pipe 320 by inserting an interior finish member 500 into the throat pipe 320 which forms an extraction gradient in molding time. |
