Patent ID: 9303395
Filing Date: 2016-04-05
CPC Classification: E03D

Claim Text:
1. A flush toilet using flush water to flush a toilet main unit, comprising: a reservoir tank storing therein flush water to be supplied to the toilet main unit, the reservoir tank being formed with a discharge port for discharging flush water therethrough; a bowl portion having a bowl-shaped waste-receiving surface, and a rim defining an inner peripheral surface of the bowl portion located along an upper edge of the bowl portion; a drainage passage having an inlet connected to a lower region of the bowl portion to expel waste therethrough by a siphon action; a first rim water spouting portion provided at a position lying in the rim and corresponding to a lateral region of the bowl portion, to spout flush water therefrom toward a forward side of the toilet main unit in such a manner as to allow the flush water to flush the bowl portion while swirlingly flowing along the inner peripheral surface of the rim; a second rim water spouting portion provided at a position lying in the rim and corresponding to a rear region of the bowl portion, to spout flush water therefrom in such a manner as to allow the flush water to flush the bowl portion while swirlingly flowing along the inner peripheral surface of the rim in a same swirling direction as that of flush water spouted from the first rim water spouting portion; a jet water spouting portion for spouting flush water therefrom toward an inlet of the drainage passage; a flow dividing chamber for dividing flush water flowing therein from the discharge port of the reservoir tank; a first rim water guiding passage for guiding flush water from the flow dividing chamber to the first rim water spouting portion; a jet water guiding passage for guiding flush water from the flow dividing chamber to the jet water spouting portion; and a second rim water guiding passage for guiding flush water from the flow dividing chamber to the second rim water spouting portion, wherein the flush toilet is configured such that, after the first rim water spouting portion starts to spout flush water therefrom, the jet water spouting portion and the second rim water spouting portion start to spout flush water therefrom, in this order.