WASHING WATER GUIDE, AND TANK UNIT, CLOSET AND CLOSET DEVICE EQUIPPED WITH THE GUIDE

摘要

PROBLEM TO BE SOLVED: To provide a technique capable of relatively increasing the discharge of washing water supplied to a closet per unit time while keeping a relatively small opening area of a water drain hole of a washing water tank unit. SOLUTION: A washing water guide provided at the drain hole of the washing water tank unit storing washing water for washing a closet is equipped with an inflow hole for taking in washing water discharged from the washing water tank unit, an outlet for discharging the washing water taken in, a side wall forming a trench or guiding the washing water from the inlet to the outlet. The cross section of the outlet is set larger than that of the inlet, and the cross section of the trench varies continuously from the inlet to the outlet.