Toto Ltd.

Takashi Oogami

Masateru Shiraishi

Masaaki Momoe

Hideki Tanimoto

Koki Shinohara

Jing Chen

Hiroshi Suminaka

The present invention relates to an operating device for a flush water tank device in a flush toilet wherein manual and motorized control units are configured to actuate a flush valve by means of a single connecting member operably connecting the manual and motorized control units to the flush valve. The operating device is characterized by a single connecting member operatively connected to the flush valve for opening and closing the flush valve depending on a pull-up amount of the connecting member, a manually operating unit for pulling up the single connecting member when a user performs a manual operation for the control unit, and an electrical drive unit adapted to pull up the single connecting member so as to actuate the flush valve by using an electrical power from an external power source.

Operating device for flush water tank device

A flush water volume regulator is provided, capable of constraining the occurrence of a buoyancy force acting on a water reservoir, whereby flush water in the water reservoir can be circulated with flush water in a flush water tank outside the water reservoir. The flush water volume regulatorof the invention has a water reservoir, being a water reservoirdisposed inside this flush water tank, capable of storing a predetermined amount of flush water, on which an openingthrough which flush water within water reservoirand flush water outside water reservoircan pass, and an opening-closing valvefor openingduring the standby state before starting a flush and for blocking openingor reducing the opening surface area of openingwhen the water level inside flush water tankis dropping after starting a flush.

Flush water volume regulator, flush water tank apparatus comprising said flush water volume regulator, and flush toilet comprising said flush water tank

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Kitakyushu, Japan

Takashi Oogami