TOILET BOWL FLUSHING DEVICE AND AIR SUCTION DEVICE

WIPO Patent Application WO/2007/015405

A1

A toilet bowl flushing device and a toilet bowl flushing method capable of making compatible higher discharge capacity with higher water saving effect. The toilet bowl flushing device comprises a water feed means feeding wash water to the bowl (2) of a toilet bowl (1), a drain flow passage (5) continued with the downstream side of the water sealing part (4) of the toilet bowl (1), an air suction means sucking air from the drain flow passage (5), and a control means controlling the water feed means and the air suction means. The air suction means comprises an ejector (21) in which a negative pressure is produced when the wash water is passed therein, a tank (20) storing a negative pressure produced when the ejector (21) sucks air therein, an air suction pipe allowing the tank (20) to communicate with the drain flow passage (5), and a valve (V5) installed in the air suction pipe and opened and closed by the control means.

SHIRAI YASUHIRO (JP)
MATSUMOTO OSAMU (JP)
SHIRAKO AKI (JP)
YAMASAKI HARUO (JP)
ITO KENICHI (JP)
KONDO YASUHIRO (JP)
HIRABAYASHI KEN (JP)
ITO ATSUSHI (JP)

PCT/JP2006/314793

February 08, 2007

July 26, 2006

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INAX CORP (JP)
SHIRAI YASUHIRO (JP)
MATSUMOTO OSAMU (JP)
SHIRAKO AKI (JP)
YAMASAKI HARUO (JP)
ITO KENICHI (JP)
KONDO YASUHIRO (JP)
HIRABAYASHI KEN (JP)
ITO ATSUSHI (JP)

E03D11/02; E03D11/08

JPH0754388A	1995-02-28
JP2002257099A	2002-09-11

GRANDOM PATENT LAW FIRM (Marunouchi 1-chome Naka-ku, Nagoya-sh, Aichi 02, JP)

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