Toto Ltd.

Shigehisa Shirakawa

Mayu Okubo

Toshifumi Yoneda

Jing Chen

A flush toilet which is capable of completing flushing of a bowl portion at or before termination of a siphon action, thereby improving toilet flushing performance in a situation where flushing is performed while generating a siphon action by using a reduced amount of flush water. The flush toilet is configured such that, after a first rim water spouting portion starts to spout flush water therefrom, a jet water spouting portion and a second rim water spouting portion start to spout flush water therefrom, in this order.

Flush toilet

A flush toilet having a toilet main unit cleaned by flush water is disclosed. The flush toilet comprises a reservoir tank for storing therein flush water; a bowl portion having a waste-receiving surface and a rim section; a drainage passage for expelling waste therethrough by means of siphon action; a rim water spouting port provided in the rim section at a position corresponding to a lateral region of the bowl portion; a jet water spouting port for spouting flush water toward an inlet of the drainage passage; a rim water guide passage for guiding flush water to the rim water spouting port; a jet water guide passage for guiding flush water to the jet water spouting port; and a flow dividing chamber for dividing and distributing flush water to the rim water guide passage and the jet water guide passage, wherein the flow dividing chamber, the rim water guide passage and the rim water spouting port are formed approximately along the same straight line.

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Kitakyushu, Japan

Shigehisa Shirakawa