Toto Ltd.

Kyoji Asada

Shu Kashirajima

Masaki Kitamura

Toshifumi Yoneda

Satoshi Yamakawa

Kazuyoshi Mizoguchi

Kenichi Nakamura

Tomoyasu Ichiki

Katsuhiro Kawakami

Tsuyoshi Ozeki

Tomohiro Hirakawa

Hiroshi Tomonari

A flush toilet wherein the rim inside wall portion comprises a rim inside wall upper sloped surface, and an improvement in user visibility and user rim portion cleanability is sought, flush water can be constrained from splashing outside the bowl portion by traveling by centrifugal force along the rim inside wall upper sloped surface from the inside surface formed at a relatively low height. The rim portion of the flush toilet of the invention includes a rim inside wall portion; the rim inside wall portion comprises a rim inside wall upper sloped surface, and an inside surface vertically extending straight up to the rim inside wall upper sloped surface; and the water supply apparatus comprises a constant flow rate valve for spouting a predetermined constant flow rate of flush water from the water spouting portion.

Flush toilet

A flush toilet that uses a prescribed amount of cleansing water stored in a cleansing water tank to cleanse the toilet and discharge waste is disclosed. The flush toilet includes a bowl having a waste receiving surface, an overhanging rim and a shelf, a drainage channel whose inlet is connected to the bottom of the bowl for discharging waste, a first water spouting section for spouting cleansing water onto the shelf of the bowl to form a vortex; a second water spouting section for spouting cleansing water onto shelf of the bowl in the same direction as the swirling direction of the vortex, a first water channel for supplying cleansing water from the cleansing water tank to the first water spouting section, and a second water channel for supplying cleansing water from the cleansing water tank to the second water spouting section.

Providing a flush toilet wherein the amount of water supplied to the jet hole and the amount of water supplied to the rim section are independently controlled. The present invention is a flush toilet () for supplying flushwater from a flushwater tank, the flush toilet comprising a bowl section () at the bottom portion of which is formed a jet hole; a jet flushwater tank () for storing flushwater to be supplied from the jet hole; a jet drain valve () disposed on the jet flushwater tank; a jet water conduit () for conducting flushwater which has passed through the jet drain valve to the jet hole; a rim section () disposed on the upper portion of the bowl section; a rim flushwater tank () for storing flushwater supplied to the rim section; a rim drain valve () disposed on the rim flushwater tank; and a rim water conduit () for conducting flushwater passed through the rim drain valve to the rim section.

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Kitakyushu, Japan

Kyoji Asada