EP0369377B1 - Water closet flushing apparatus - Google Patents

Water closet flushing apparatus Download PDF

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Publication number
EP0369377B1
EP0369377B1 EP89121013A EP89121013A EP0369377B1 EP 0369377 B1 EP0369377 B1 EP 0369377B1 EP 89121013 A EP89121013 A EP 89121013A EP 89121013 A EP89121013 A EP 89121013A EP 0369377 B1 EP0369377 B1 EP 0369377B1
Authority
EP
European Patent Office
Prior art keywords
water
flushing
discharge passage
flushing water
trap discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89121013A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0369377A1 (en
Inventor
Osamu Tsutsui
Atsuo Makita
Hirofumi Takeuchi
Shinji Shibata
Noboru Shinbara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toto Ltd
Original Assignee
Toto Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP28704988A external-priority patent/JP2633932B2/ja
Priority claimed from JP31564988A external-priority patent/JP2633937B2/ja
Application filed by Toto Ltd filed Critical Toto Ltd
Priority to AT89121013T priority Critical patent/ATE87343T1/de
Publication of EP0369377A1 publication Critical patent/EP0369377A1/en
Application granted granted Critical
Publication of EP0369377B1 publication Critical patent/EP0369377B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
    • E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl

Definitions

  • the present invention relates to a water closet flushing apparatus according to the pre-characterizing part of claim 1 (US-A-3224013) and a water supply method according to the pre-characterizing part of claim 12.
  • a water closet comprises a bowl which receives human excreta and a trap discharge passage substantially in the form of an inverted U-shaped and communicated with the bottom of the water closet bowl.
  • a flushing water pipe and an independent flushing water pipe are respectively communicated with a water closet bowl and a trap discharge passage so that they are both independently charged with flushing water.
  • the flushing water that is supplied to the water closet bowl is supplied from a plural number of supply holes piercing the rim portion of the water closet bowl.
  • flushing water that is supplied to the trap discharge passage is supplied via a flushing water supply system separate from the water closet bowl flushing water supply system, and which supplies the flushing water to an opening provided in the portion of the trap discharge passage that communicates with the bottom of the water closet bowl.
  • a flushing water supply system separate from the water closet bowl flushing water supply system, and which supplies the flushing water to an opening provided in the portion of the trap discharge passage that communicates with the bottom of the water closet bowl.
  • solenoid controlled valves are inserted into the two flushing water pipes and a timer is used to send signals to open and close the solenoid valves.
  • the solenoid controlled valves are controlled so that flushing water is first supplied to the trap discharge passage to produce the siphon action whereby the excreta and the flushing water are discharged. After this, flushing water is supplied to the water closet bowl to clean the bowl. Therefore, when compared with conventional water closet flushing apparatus of the type in which flushing water is supplied to only the water closet bowl, there is the effect of causing the trap discharge passage to function as a siphon and consequently of requiring less flushing water.
  • the solenoid controlled valves are controlled to open or close in response to a time interval set by the timer so that there is the problem that when there are variations in the pressure of the flushing water in the flushing water supply line, there is also a variation in the flow rate so that an optimum flushing effect cannot be obtained.
  • excreta remains in the water closet bowl when the pressure of the flushing water drops.
  • the flushing water supply holes in the trap discharge passage are provided in the vicinity of the entrance to the trap discharge passage, and the flushing water has to be made to flow up from the lower end of the trap discharge passage to spill over the bend at the upper end of the trap discharge passage. Because of this, the trap discharge passage has to be filled with water from the bend at the upper end of the trap discharge passage to the lower end of the trap discharge passage and so the amount of water that is required to create a definite siphon effect in the entire trap discharge passage is much larger than would be otherwise expected.
  • the object of the present invention is to provide a water closet flushing apparatus and a flushing water supply method that is capable of effectively cleaning the water closet bowl using only a small amount of flushing water.
  • FIG. 1 is a longitudinal sectional view indicating a first preferred embodiment of a water closet flushing apparatus in accordance with the present invention.
  • FIG. 2 is a block diagram indicating the configuration of a control apparatus for the water closet flushing apparatus indicating in FIG. 1.
  • FIG. 3 is a flow chart indicating the flushing process for the water closet flushing apparatus in accordance with the present invention.
  • FIG. 4 is a time chart of one example of the operation of the water closet flushing apparatus in accordance with the present invention.
  • FIG. 5 through FIG. 7 are time charts of other examples of the operation of the water closet flushing apparatus in accordance with the present invention.
  • FIG. 8 is a longitudinal sectional view indicating a second preferred embodiment of a water closet flushing apparatus in accordance with the present invention.
  • FIG. 9 is a longitudinal sectional view taken along section line IX-IX of the water closet flushing apparatus in FIG. 8.
  • FIG. 1 and FIG. 2 indicate a first embodiment of the water closet flushing apparatus according to the present invention.
  • a flushing bowl 10 is provided with a bowl portion 11 in which the excreta is collected, this bowl portion 11 being divided into two portions by a partition wall 11a, a trap discharge passage 12 communicating the two portions at the bottom portion of the bowl portion 11 and in the shape of an inverted letter "U", and a rim 13 formed in a substantially cylindrical shape around an upper edge of the bowl portion 11.
  • the rim 13 is hollow and forms a flow path 13a for the flushing water.
  • One portion of the flow path 13a is enlarged to form a water supply chamber 13d and a water supply inlet 13b opens into this water supply chamber 13d.
  • the rim 13 has a plural number of substantially circular-shaped flushing water supply holes 13c opened in it and communicating with the flow path 13a.
  • These flushing water supply holes 13c are opened at an angle in the inner wall of the bowl portion 11.
  • the flushing water supply holes 13c are opened at an angle so that the direction of the water supplied through them is approximately 45° to the horizontal and in the downwards direction. By this, the flushing water discharged into the bowl creates a vortex in the bowl portion 11.
  • the trap discharge passage 12 has a flow inlet 12a formed between the bottom end 11b of the partition wall 11a and the bottom portion of the bowl portion 11.
  • the trap discharge passage 12 with its substantially inverted letter "U" shape is provided with a top bend portion 12b and the flushing water W is discharged so as to flow over this top bend portion 12b.
  • a discharge passage 12c downstream from the trap discharge passage 12 is formed as a straight pipe which is substantially vertical, and a discharge outlet 12d is provided at its lower end.
  • the top portion of the trap discharge passage 12 is formed so as to be flat, and is provided with a plural number of spray holes 14 that are opened through it and directly above the discharge passage 12c. These spray holes 14 are opened so as to have a slight inclination so that they spray water onto the walls of the discharge passage 12c of the trap discharge passage 12. In addition, the spray holes 14 are opened radially at substantially equal gaps so that the water is dispersed as it is sprayed. To the top portion of the spray holes 14 is mounted a cover 15 that covers all of the spray holes 14.
  • a cover 17 comprising an equipment housing chamber 16 that houses the flushing water supply control apparatus.
  • a flushing water supply pipe 19 that pierces the cover 17 and which is connected to a flushing water supply source 18.
  • This flushing water supply pipe 19 branches into two midway along its length, with the branches being connected to a bowl water supply pipe 22 and a trap discharge passage water supply pipe 23.
  • the bowl water supply pipe 22 is connected to a water supply inlet 13b that opens into the water supply chamber 13d, and along its length are provided in order, a solenoid opening and closing valve 20 for the bowl portion, a vacuum braker 24 which is open to the atmosphere and a flow sensor 25.
  • the trap discharge passage water supply pipe 23 is communicated with the space inside the cover 15 of the spray holes 14 via a rubber hose, along the length of which are provided in order, a solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion, a vacuum braker 27 which is open to the atmosphere, and a flow sensor 28.
  • a rubber hose 26 is provided in substantially the shape of a letter "U" and the bend portion 26a is disposed so that it is at a position lower than the position of the top bend portion 12b of the trap discharge passage 12.
  • a control apparatus 30 is provided inside the equipment housing chamber 16 and this control apparatus 30 is connected by signal lines to the solenoid opening and closing valve 20 for the bowl portion, the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion, the flow sensor 25 and the flow sensor 28.
  • the control apparatus 30 is connected to a start input portion 29 provided with various types of switches for the operation of the flushing water supply apparatus or sensors for generating operation start signals, and this start input portion 29 is also provided inside the equipment housing chamber 16.
  • the control apparatus 30 is provided with a microprocessor (MPU) 31, a memory 32, an input interface circuit 33 and an output interface circuit 34.
  • the microprocessor 31 is provided with a water amount comparison means 31b that compares the total flushing water amount on the basis of calculations by a flushing water amount calculation means 31a and flushing water amount calculation means 31a on the basis of flow signals from the flow sensor 25 and flow sensor 28 respectively, with the set value for a predetermined flushing water amount.
  • the set value for a predetermined flushing water amount is stored beforehand in the memory 32.
  • the memory 32 also stores the command process for the signals that command the opening and closing operation of the solenoid opening and closing valve 20 for the bowl portion.
  • the microprocessor 31 is set a timer 31c for timing control of the opening and closing operation command signals for the solenoid opening and closing valve 20 for the bowl portion and the solenoid opening and closing valve (water spray valves 21 for the trap discharge passage portion.
  • Signal line 23a and signal line 28a connect the input interface circuit 33 of the control apparatus 30 to the flow sensor 25 provided for the bowl water supply pipe 22 and the flow sensor 28 provided for the trap discharge passage water supply pipe 23, respectively.
  • signal line 20a and signal line 21a connect the output interface circuit 34 of the control apparatus 30 to the solenoid opening and closing valve 20 for the bowl portion and the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion, respectively, so that opening and closing operation command signals are sent to the solenoid opening and closing valve 20 for the bowl portion and the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion.
  • a manual switch, a switch activated by getting off the toilet seat after use of the water closet, a photosensor or the like is used to switch on a start switch 29b and start the operation of the water closet flushing apparatus.
  • a start signal from the start input portion 29 is sent to the control apparatus 30 and then the microprocessor 31 sends an open bowl command signal to the solenoid opening and closing valve 20 for the bowl portion.
  • the solenoid opening and closing valve 20 for the bowl portion flushing water from the flushing water supply source 18 is supplied to the water supply inlet 13b via a bowl water supply pipe 22.
  • the amount of flushing water that flows to the bowl portion 11 is detected by the flow sensor 25 and the flow signal for that amount is sent to the flushing water amount calculation means 31a of the control apparatus 30 and the amount of water is calculated (Step S2).
  • the water amount comparison means 31b compares the calculated amount of water with the predetermined value (Step S3). When the amount of water that has flowed into the bowl portion 11 reaches a predetermined value, a close valve command signal is sent to the solenoid opening and closing valve 20 for the bowl portion and the solenoid opening and closing valve 20 for the bowl portion is closed (Step S4). This completes the flushing action for the inside of the bowl portion 11.
  • the start signal from the start input portion 29 is also sent to the timer 31c of the control apparatus 30 and starts the timer countdown by the timer 31c (Step S5).
  • a valve release command signal is sent from the control apparatus 30 to the solenoid opening and closing valve (water spray valve) 21 provided on the trap discharge passage water supply pipe 23 (Step S6).
  • the solenoid opening and closing valve (water spray valve) 21 then opens and water from the flushing water supply source 18 is supplied to the rubber hose 26 via the trap discharge passage water supply pipe 23 and flows into the cover 15.
  • the water that has flown into the cover 15 is radially sprayed from the spray holes 14 in the direction of the inner wall of the discharge passage 12c of the trap discharge passage 12 and is supplied to the inside of the discharge passage 12c of the trap discharge passage 12.
  • the inside of the discharge passage 12c of the trap discharge passage 12 is filled with flushing water and the air which is mixed with it and flows from the discharge outlet 12d.
  • the flowing action of this air and water mix creates a negative pressure inside the discharge passage 12c and this creates a siphon action in the trap discharge passage 12 so that the flushing water and the excreta that has collected in the bowl portion 11 rises over the top bend portion 12b and is flushed along the discharge passage 12c of the trap discharge passage 12.
  • the amount of flushing water necessary to create the siphon action is determined by the optimum value according to the shape of the trap discharge passage 12 and other factors, and the control of this amount of flushing water is performed using the flow sensor 28. This is to say that as in the same way for the control of the flow amount to the bowl portion 11, the flow amount is detected by the flow sensor 28 and is calculated by the flushing water amount calculation means 31a and this value is compared by the water amount comparison means 31b with a predetermined value (Steps S7, S8). When a predetermined amount of flushing water has been sprayed from the spray holes 14, the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion is closed (Step S9).
  • the timing for the opening of the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion is as shown in FIG. 4, can be made for when the solenoid opening and closing valve 20 for the bowl portion is open.
  • the time T1 is when flushing water is supplied to both the bowl portion 11 and the rubber hose 26.
  • the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion is closed and the siphon action causes the excreta and the contaminated water in the bowl portion 11 to be flushed away but the time that this flushing action continues is controlled by the timer 31c.
  • the time count by the timer 31c begins when the solenoid opening and closing valve 20 for the bowl portion closes (Step 10).
  • the open command signal is sent to the solenoid opening and closing valve 20 for the bowl portion and the solenoid opening and closing valve 20 for the bowl portion opens once again.
  • the water amount comparison means 31b compares whether or not a predetermined flow amount has been reached (Step S13) and the solenoid opening and closing valve 20 for the bowl portion closes when a predetermined amount has been reached (Step S14).
  • the bowl is water sealed (i.e. the water level rises) for up to a predetermined level inside the bowl portion 11.
  • the closing of the solenoid opening and closing valve 20 for the bowl portion completes the series of processes for the water closet flushing apparatus.
  • the flushing water sprayed from the spray holes 14 provided at the top of the trap discharge passage 12 to the inside of the discharge passage 12c of the trap discharge passage 12 allows the discharge passage 12c to be easily filled with flushing water so that a siphon action is efficiently created using only a small amount of flushing water.
  • the amount of flushing water sprayed to the trap discharge passage 12 is detected and controlled by the flow sensor 28 so that the optimum control can be performed for the amount of water necessary for the siphon action.
  • the closing command signals for the solenoid opening and closing valve 20 for the bowl portion and the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion are controlled on the basis of the results of calculation of the supply amounts detected by the flow sensor 25 and the flow sensor 28 and so even if a pressure fluctuation is created in the flushing water supply source 18 or the flushing water supply pipe 19, it is always possible for a predetermined amount of flushing water to be supplied so that no problems are caused due to there being insufficient water.
  • the use of a flushing process to discharge excreta from the trap discharge passage 12 means that a favorable flushing effect can always be obtained even when there is a large amount of excreta in the bowl portion 11.
  • the bend portion 26a of the rubber hose 26 for supplying flushing water to the spray holes 14 is provided so that there is always flushing water inside the rubber hose 26. This means that odors inside the trap discharge passage 12 do not pass through the rubber hose 26 and the trap discharge passage water supply pipe 23 to leak into the room.
  • the solenoid opening and closing valve 20 for the bowl portion opens and then the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion opens so that the flushing of the bowl portion 11 and the spraying of flushing water to the trap discharge passage 12 are performed simultaneously.
  • the opening action of the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion can be performed after the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion has opened.
  • the opening operation command signal for the solenoid opening and closing valve 20 for the bowl portion need not use the timer 31c of the control apparatus 30 and only the closing signal for the solenoid opening and closing valve 20 for the bowl portion need be used.
  • Such water supply operation can be performed using a two-way automatic switching value instead of the solenoid opening and closing valve 20 for the bowl portion and the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion.
  • the solenoid opening and closing valve 20 for the bowl portion to open while the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion is open, and for the creation of the water seal to commence. If this is done, then the flushing water sprayed from the spray holes 14 creates a siphon and then water is discharged to the bowl portion 11 while the water inside the bowl portion 11 is being flushed. Accordingly, the bowl portion 11 becomes empty due to the siphon action and the absence of any water connecting the bowl portion 11 and the trap discharge passage 12 is prevented. By this, the entry of odors from the trap discharge passage 12 to the bowl portion 11 is prevented and noise from the flushing water spray at the spray holes 14 can also be shut out.
  • flow sensor 25 and flow sensor 28 a vaned wheel that rotates in proportion to the flow and which outputs electrical signals in accordance with that rotation.
  • a pressure gauge can also be provided along the supply pipes as another type of flow control means so that the operating time of the timer is controlled on the basis of the detected value for the pressure, and thereby controls the opening operation time of the solenoid opening and closing valves.
  • FIG. 8 illustrates a second embodiment of the water closet flushing apparatus according to the present invention.
  • a water seal generation mechanism is communicated with the lower end of the trap discharge passage 12 and a supply source of the flushing water sprayed to the trap discharge passage 12 is different from the supply source for the flushing water supplied to the bowl portion 11.
  • the downstream side of the discharge passage 12c of the trap discharge passage 12 is formed in approximately straight from the top bend portion 12b.
  • This lower end of the discharge passage 12c has a cylindrically shaped water seal mechanism 40 fixed and so as to communicate with it.
  • the water seal mechanism 40 is cylindrical in shape and is made of synthetic resin, has an enlarged diameter portion 41 where the diameter enlarges from the middle portion to the bottom portion, and an excreta guide cylinder 42 disposed so as to be housed inside this enlarged diameter portion 41.
  • the lower end of the enlarged diameter portion 41 is formed with a flange portion 41a facing towards the inside, and a flow outlet 43 is provided with a reduced diameter portion.
  • To the top of the enlarged diameter portion 41 is provided a communicated cylindrical portion 41b which engages with the downstream end of the discharge passage 12c using adhesive or the like so that a leakproof state is maintained.
  • the enlarged diameter portion 41 and the excreta guide cylinder 42 are communicated by a communicating portion 44 as shown in FIG. 9.
  • a communicating portion 44 Between the inner circumferential surface of the enlarged diameter portion 41 and the outer circumferential surface of the excreta guide cylinder 42, and between the lower end of the excreta guide cylinder 42 and the upper surface of the flange portion 41a are respectively provided gaps 45 and 46 as respectively shown in FIG. 8 and FIG. 9.
  • a gap 47 is provided between the inner wall of the enlarged diameter portion 41 and the upper end of the excreta guide cylinder 42 .
  • water that has already been processed and stored in the processed water tank 50 is used as the flushing water that is sprayed to the discharge passage 12c of the trap discharge passage 12.
  • the flushing water that includes excreta and which has been discharged along the trap discharge passage 12 is sent via a discharge pipe (not indicated in the figure) to the processed water tank 50 where it undergoes processing such as sedimentation separation and chemical treatment.
  • the processed water tank 50 and the spray holes 14 to the trap discharge passage 12 are connected by a trap discharge passage supply pipe 51 and a rubber hose 26.
  • the trap discharge passage supply pipe 51 which passes through the cover 17 and which is connected to the processed water tank 50 is provided along its length with, in order from the upstream side, a water supply pump 52, a flow sensor 28 and a solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion.
  • the water supply pump 52, the flow sensor 28 and the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion are each connected to a control apparatus 30 by respective signal lines.
  • the flushing water supply pipe 19 connected to a flushing water supply source 18 such as a waterworks differs from that of the first embodiment in that it is connected to the bowl water supply pipe 22 without branching into two along its length.
  • the spray holes 14 for spraying flushing water to the trap discharge passage 12 are different from those of the first embodiment in that they are positioned slightly downstream from the top of the trap discharge passage 12. Accordingly, the water sprayed from the spray holes 14 is sprayed as shown in FIG. 8, at a slight angle with respect to the inner wall of the discharge passage 12c of the trap discharge passage 12.
  • flushing water is supplied to create a siphon action in the trap discharge passage 12 but this is performed in the following manner.
  • the flushing water command signal output from the control apparatus 30 to spray the trap discharge passage 12 with water is sent to the water supply pump 52 and to the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion so that the water supply pump 52 operates and the solenoid opening and closing valve (water spray valve) 21 for the trap discharge passage portion opens.
  • the water supply pump 52 sends treated water that has been stored in the processed water tank 50, to the spray holes 14 via the trap discharge passage supply pipe 51 and the rubber hose 26, and water is sprayed from the spray holes 14 to the inner wall of the discharge passage 12c.
  • a siphon action is created in the trap discharge passage 12 in the same manner as has already been described.
  • a water seal mechanism 40 is provided at the lower end of the trap discharge passage 12. This is to say that the one portion of the flushing water that flows through the downstream side discharge passage 12c of the trap discharge passage 12 flows through the gaps 45, 46 and 47 between the enlarged diameter portion 41 and the excreta guide cylinder 42 and is discharged from the flow outlet 43.
  • the flange portion 41a forms a restricted diameter portion and so the flushing water that passes the gap 46 between the lower end of the excreta guide cylinder 42 and the upper surface of the flange portion 41a and flows radially inwards creates a water seal for the 43.
  • This water seal blocks off the inside of the trap discharge passage 12 from the atmosphere and the flushing water is discharged definitely and promptly from the flow outlet 43 when flushing water is filled on the side upstream from the water seal. By this, the generation of a complete siphon inside the trap discharge passage 12 is facilitated.
  • treated water that has been stored in the processed water tank 50 is used as the flushing water that is supplied to the trap discharge passage 12 and so the effective utilization of the flushing water is promoted.
  • the treated water that flows inside the trap discharge passage 12 is not seen by the user of the water closet and so there is no discomfort to the user even if this water is discolored, for example.
  • the generation of the siphon action is facilitated and it becomes possible to reduce the amount of flushing water used.
  • the control method for the flow used a calculation means for the measurement and calculation of the flow but it is also possible to perform control of the slow by using an instantaneous flow measurement means and a timer.
  • one portion of the trap discharge passage water supply passage to the trap discharge passage used a rubber hose but a hose of various other types of material may be used instead of a rubber hose.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP89121013A 1988-11-14 1989-11-13 Water closet flushing apparatus Expired - Lifetime EP0369377B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89121013T ATE87343T1 (de) 1988-11-14 1989-11-13 Wasserspuelung fuer eine toilette.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP287049/88 1988-11-14
JP28704988A JP2633932B2 (ja) 1988-11-14 1988-11-14 サイホン式水洗便器
JP31564988A JP2633937B2 (ja) 1988-12-14 1988-12-14 大便器システム
JP315649/88 1988-12-14

Publications (2)

Publication Number Publication Date
EP0369377A1 EP0369377A1 (en) 1990-05-23
EP0369377B1 true EP0369377B1 (en) 1993-03-24

Family

ID=26556560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121013A Expired - Lifetime EP0369377B1 (en) 1988-11-14 1989-11-13 Water closet flushing apparatus

Country Status (5)

Country Link
EP (1) EP0369377B1 (zh)
KR (1) KR900008128A (zh)
CN (1) CN1016631B (zh)
CA (1) CA2002922C (zh)
DE (1) DE68905568T2 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9308680U1 (de) * 1993-06-10 1994-07-14 Lepel, Barbara, Freifrau Von, 74199 Untergruppenbach Urinal mit Wasserspülung
DE102009017521B4 (de) * 2009-04-17 2011-04-28 Repower Systems Ag Getriebe einer Windenergieanlage
JP5447706B1 (ja) * 2013-03-04 2014-03-19 Ｔｏｔｏ株式会社 水洗大便器
CN104264759B (zh) * 2013-09-11 2016-07-06 科勒(中国)投资有限公司 马桶的水量控制系统及控制方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05225439A (ja) * 1992-02-13 1993-09-03 Sanyo Electric Co Ltd 自動販売機

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224013A (en) * 1964-03-18 1965-12-21 Elton H Tubbs Siphonic flush commode
FR2415999A1 (fr) * 1978-02-07 1979-08-31 Lecat Roger Perfectionnements apportes aux water-closets chimiques
WO1985005649A1 (en) * 1984-06-01 1985-12-19 Bernhard Hauptmann Installation for the reuse of waste water originating in particular from kitchens, baths, showers and washbasins
JPS62156446A (ja) * 1985-12-28 1987-07-11 東陶機器株式会社 給水制御装置
FR2601709B1 (fr) * 1986-07-15 1990-10-12 Fact Anal Dispositif pour le rincage d'une cuvette de w.-c. au moyen d'eau amenee sans pression

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05225439A (ja) * 1992-02-13 1993-09-03 Sanyo Electric Co Ltd 自動販売機

Also Published As

Publication number Publication date
CN1042748A (zh) 1990-06-06
KR900008128A (ko) 1990-06-02
EP0369377A1 (en) 1990-05-23
CA2002922C (en) 1993-01-26
CN1016631B (zh) 1992-05-13
DE68905568T2 (de) 1993-09-23
DE68905568D1 (de) 1993-04-29
CA2002922A1 (en) 1990-05-14

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