Title:
TOILET BOWL FLUSHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/097259
Kind Code:
A1
Abstract:
A toilet bowl flushing device capable of reliably discharging excreta with less
flush water in a short time and emitting low flushing noise. The toilet bowl flushing
device has first water supply means for supplying flush water to a bowl (2) of a
toilet bowl body (1), second water supply means for additionally supplying the
flush water, a drain flow passage (5) connected to the downstream side of the water
sealing part (4) of the toilet bowl body (1), air suction means for sucking air
from the drain flow passage (5), and a control device (50) for controlling the
first and second water supply means and the air suction means. The first water
supply means is formed so that it can supply the flush water from the rear of the
bowl (2) so as to form a swirl flow in the bowl (2). The second water supply means
has a cistern (20) and discharge means for discharging the flush water in the cistern
(20) to the bowl (2) when an open/close valve (V2) is opened. After activating
the first water supply means, the control device (50) activates the air suction
means, creating a siphon effect to form the swirl flow, and then opens the open/close
valve (V2) after the swirl flow is formed and before the siphon effect
is completed.
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Inventors:
SHIRAI YASUHIRO (JP)
SHIRAKO AKI (JP)
YAMASAKI HARUO (JP)
ITO KENICHI (JP)
KONDO YASUHIRO (JP)
HIRABAYASHI KEN (JP)
ITOH ATSUSHI (JP)
SHIRAKO AKI (JP)
YAMASAKI HARUO (JP)
ITO KENICHI (JP)
KONDO YASUHIRO (JP)
HIRABAYASHI KEN (JP)
ITOH ATSUSHI (JP)
Application Number:
PCT/JP2007/052843
Publication Date:
August 30, 2007
Filing Date:
February 16, 2007
Export Citation:
Assignee:
INAX CORP (JP)
SHIRAI YASUHIRO (JP)
SHIRAKO AKI (JP)
YAMASAKI HARUO (JP)
ITO KENICHI (JP)
KONDO YASUHIRO (JP)
HIRABAYASHI KEN (JP)
ITOH ATSUSHI (JP)
SHIRAI YASUHIRO (JP)
SHIRAKO AKI (JP)
YAMASAKI HARUO (JP)
ITO KENICHI (JP)
KONDO YASUHIRO (JP)
HIRABAYASHI KEN (JP)
ITOH ATSUSHI (JP)
International Classes:
E03D11/02; E03D3/00
Foreign References:
| JPH0754388A | 1995-02-28 | |||
| JPH0627969U | 1994-04-15 | |||
| JP2002097704A | 2002-04-05 |
Other References:
See also references of EP 1990473A4
Attorney, Agent or Firm:
GRANDOM PATENT LAW FIRM (8-24 Marunouchi 1-chome, Naka-k, Nagoya-shi Aichi 02, JP)
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