EP0450955B1 - Procédé pour le rinçage automatique d'un urinoir - Google Patents

Procédé pour le rinçage automatique d'un urinoir Download PDF

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Publication number
EP0450955B1
EP0450955B1 EP91302971A EP91302971A EP0450955B1 EP 0450955 B1 EP0450955 B1 EP 0450955B1 EP 91302971 A EP91302971 A EP 91302971A EP 91302971 A EP91302971 A EP 91302971A EP 0450955 B1 EP0450955 B1 EP 0450955B1
Authority
EP
European Patent Office
Prior art keywords
urinal
flushing
valve
checking
sensor
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
Application number
EP91302971A
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German (de)
English (en)
Other versions
EP0450955A1 (fr
Inventor
Takashi Yasuo
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.)
Inax Corp
Original Assignee
Inax Corp
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
Application filed by Inax Corp filed Critical Inax Corp
Publication of EP0450955A1 publication Critical patent/EP0450955A1/fr
Application granted granted Critical
Publication of EP0450955B1 publication Critical patent/EP0450955B1/fr
Expired 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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D13/00—Urinals ; Means for connecting the urinal to the flushing pipe and the wastepipe; Splashing shields for urinals

Definitions

  • This invention relates to a method for the automatic flushing of a urinal. More particularly, it is an improvement in the method for the automatic flushing of a urinal which includes preliminary flushing and main flushing.
  • the apparatus is based on a known method which includes preliminary flushing and main flushing (hereinafter referred to simply as flushing in contrast to preliminary flushing). If a man stands in front of a urinal, water is supplied into a bowl defining the urinal for a brief period of time to wet its inner surface (preliminary flushing), and as soon as he leaves the urinal, water is supplied into it for a longer period of time to cleanse it fully (flushing). The wetting of the bowl surface by preliminary flushing makes it possible to prevent virtually any urine from contacting the bowl surface directly and contaminating it.
  • This invention is an improvement in the method for the automatic flushing of a urinal which includes a short time of preliminary flushing taking place as soon as a user stands in front of the urinal, and a long time of main flushing taking place as soon as the user has left it, and is characterized by discontinuing flushing, omitting preliminary flushing and then main flushing taking place again as soon as the user has left, if anybody stands in front of the urinal during its main flushing.
  • the apparatus includes a water supply pipe 44 extending from a source of water supply, a water supply control device 46 to which the pipe 44 is connected, and a water supply pipe 48 connected between the water supply control device 46 and a urinal 42 mounted on a wall 40.
  • the water supply control device 46 includes a sensor 50 for detecting a man standing in front of the urinal 42, a control circuit 52 to which a signal is inputted from the sensor 50, and an electromagnetic valve 54 connected between the water supply pipes 44 and 48.
  • the control circuit 52 includes a microcomputer in which a control program as shown in FIGURE 2 is stored.
  • Step 1 is intended for detecting by the sensor 50 anybody who has come to stand in front of the urinal 42.
  • the program remains at Step 1 until somebody is detected by the sensor 50.
  • Step 2 the program proceeds from Step 1 to Step 2, at which the valve 54 is opened to start supplying water to the urinal 42, while at the same time, a timer T i is started to count a predetermined length of time T1.
  • the program proceeds to Step 3 for checking if the time T1 has passed.
  • Step 3 the program proceeds from Step 3 to Step 4 for checking if the sensor 50 still indicates the presence of somebody in front of the urinal 42. If somebody is still present in front of the urinal 42, the program returns from Step 4 to Step 3. The program is repeated between Steps 3 and 4 until the time T1 passes, as long as somebody stays in front of the urinal 42.
  • Step 3 the program proceeds from Step 3 to Step 5, at which the valve 54 is closed to stop the supply of water to the urinal 42, whereupon the preliminary flushing of the urinal 42 is completed. If the person who has been staying in front of the urinal 42 leaves it before its preliminary flushing is completed, the program proceeds from Step 4 to Step 6, at which the valve 54 is closed to complete the preliminary flushing, and the program returns to Step 1.
  • Step 5 The program proceeds from Step 5 to Step 7 for checking if somebody is still present in front of the urinal 42.
  • the program remains at Step 7 until he leaves the urinal 42.
  • Step 7 the program proceeds from Step 7 to Step 8, at which the valve 54 is opened again to start supplying water to the urinal 42 to start its flushing (main or full-scale flush-ing), while at the same time, a timer T2 is started to count another predetermined length of time T2.
  • the program proceeds to Step 9 for checking if the time T2 has passed. If the time T2 has not yet passed, the program proceeds from Step 9 to Step 10 for checking if another person is present in front of the urinal 42.
  • Step 9 the program is repeated between Steps 9 and 10 until the time T2 passes.
  • the program proceeds from Step 9 to Step 11, at which the valve 54 is closed to finish the flushing of the urinal 42. Then, the program returns to Step 1.
  • Step 10 the program proceeds from Step 10 to Step 12, at which the valve 54 is closed to discontinue its flushing.
  • the program returns from Step 12 to Step 7 so that the urinal 42 may be flushed anew after he has left it.
  • the time T1 is preferably from one to four seconds, and the time T2 from four to 10 seconds.
  • FIGURE 3 showing two modes of valve operation which enable two modes, respectively, of flushing according to the method of this invention as hereinabove described with reference to FIGURE 2.
  • the upper chart, or case 1 represents a basic or normal cycle of flushing which is followed when nobody is detected in front of the urinal 42 during its flushing. This cycle consists of preliminary flushing which occurs as soon as somebody stands in front of the urinal 42, and flushing which occurs when he has left it.
  • the lower chart, or case 2 represents a modified cycle of flushing which takes place if somebody is detected in front of the urinal 42 during its flushing. In this case, the flushing of the urinal is discontinued, and no preliminary flushing thereof occurs. Therefore, the volume of water is decreased by an amount corresponding to the area indicated by hatched lines in Fig. 3, case (2).
  • the method of this invention including the modified cycle of flushing as defined in the appended claims contributes greatly to saving water for flushing the urinal.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • External Artificial Organs (AREA)

Claims (6)

  1. Un procédé pour le rinçage automatique d'un urinoir (42) comprenant un rinçage préliminaire qui intervient dès qu'un usager est détecté face à l'urinoir (42), et un rinçage principal qui intervient dès que l'usager a quitté l'urinoir (42), caractérisé en ce que si un usager est détecté face à l'urinoir (42) durant son rinçage principal, ledit rinçage principal est interrompu, le rinçage préliminaire de l'urinoir (42) est omis, et le rinçage principal intervient de nouveau dès que l'usager a quitté l'urinoir (42).
  2. Un procédé tel que revendiqué dans la revendication 1, dans lequel ledit rinçage préliminaire est de une à quatre secondes.
  3. Un procédé tel que revendiqué dans la revendication 1 ou 2 dans lequel ledit rinçage principal, lorsqu'il n'est pas interrompu, est de quatre à dix secondes.
  4. Un procédé de fonctionnement d'un appareil pour rincer automatiquement un urinoir (42), lequel appareil comprend un capteur (50) pour détecter une personne en face dudit urinoir, une vanne (54) pour commander l'alimentation en eau dudit urinoir (42), et un moyen pour ouvrir et fermer ladite vanne (54) en réponse à un signal dudit capteur (50), ledit procédé comprenant les étapes de :
    (1) Maintien dudit appareil en état d'attente jusqu'à ce que quelqu'un soit détecté en face dudit urinoir (42) par ledit capteur (50) ;
    (2) Activation de l'ouverture de ladite vanne (54), et d'un premier temporisateur pour débuter un chronométrage d'une première durée de temps prédéterminée T₁ dès que quelqu'un est détecté à l'étape (1) ;
    et caractérisé en ce que ledit procédé comprend en outre les étapes de :
    (3) Vérification que ledit premier temporisateur a terminé de chronométrer ledit temps T₁ ;
    (4) Si le résultat de ladite vérification est négatif, vérification que quelqu'un est détecté par ledit capteur (50), et si le résultat de ladite détection est affirmatif, retour à ladite étape (3) ;
    (5) Activation de la fermeture de ladite vanne (54) si le résultat de ladite vérification à l'étape (3) est affirmatif ;
    (6) Activation de la fermeture de ladite vanne (54) et retour à ladite étape (1) si le résultat de ladite détection à l'étape (4) est négatif ;
    (7) Si le capteur (50) continue de détecter quelqu'un après ladite étape (5), maintien de ladite vanne (54) fermée jusqu'à ce que ledit capteur (50) cesse de détecter quelqu'un ;
    (8) Activation de l'ouverture de ladite vanne (54), et d'un second temporisateur pour débuter un chronométrage d'une seconde durée de temps prédéterminée T₂ si ledit capteur (50) a cessé de détecter quelqu'un ;
    (9) Vérification que ledit second chronométre a terminé de chronométrer ledit temps T₂ ;
    (10) Si le résultat de ladite vérification à l'étape (9) est négatif, vérification que quelqu'un est détecté par ledit capteur (50), et si le résultat de ladite détection dernièrement mentionnée est négatif, retour à l'étape (9) ;
    (11) Activation de la fermeture de ladite vanne (54) et retour à ladite étape (1) si le résultat de ladite vérification à l'étape (9) est affirmatif ; et
    (12) Activation de la fermeture de ladite vanne (54) et retour à ladite étape (7) si le résultat de ladite détection à l'étape (10) est affirmatif.
  5. Un procédé tel qu'énoncé dans la revendication 4, dans lequel ledit temps T₁ est d'une à quatre secondes.
  6. Un procédé tel qu'énoncé dans la revendication 4 ou 5 dans lequel ledit temps T₂ est de quatre à dix secondes.
EP91302971A 1990-04-05 1991-04-04 Procédé pour le rinçage automatique d'un urinoir Expired EP0450955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2091051A JPH03290536A (ja) 1990-04-05 1990-04-05 小便器自動洗浄方法
JP91051/90 1990-04-05

Publications (2)

Publication Number Publication Date
EP0450955A1 EP0450955A1 (fr) 1991-10-09
EP0450955B1 true EP0450955B1 (fr) 1992-11-04

Family

ID=14015708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91302971A Expired EP0450955B1 (fr) 1990-04-05 1991-04-04 Procédé pour le rinçage automatique d'un urinoir

Country Status (5)

Country Link
EP (1) EP0450955B1 (fr)
JP (1) JPH03290536A (fr)
KR (1) KR910018645A (fr)
DE (1) DE69100008T2 (fr)
ES (1) ES2036421T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261532B (en) * 1991-11-20 1994-11-23 Chen Chi Electro Chemical Automatic flushing device
DE4237938A1 (de) * 1992-11-11 1994-05-19 Lepel Barbara Freifrau Von Verfahren zum Betrieb eines Urinals mit dem Ziel der Einsparung von Spülwasser und Urinal zur Ausübung des Verfahrens
CN1309918C (zh) * 2001-08-30 2007-04-11 东陶机器株式会社 便器洗净装置
CN202500199U (zh) * 2012-02-29 2012-10-24 李绍强 一种自动冲水小便器控制电路
USD1097073S1 (en) 2023-03-31 2025-10-07 Sloan Valve Company Wall plate

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462769A (en) * 1965-11-27 1969-08-26 Omron Tateisi Electronics Co Apparatus for automatic washing of a flush lavatory
US3434164A (en) * 1967-01-12 1969-03-25 American Standard Inc Proximity-flushed urinal
JPS6040441A (ja) * 1983-10-15 1985-03-02 松下電工株式会社 便器水洗装置
US4624017A (en) * 1983-12-20 1986-11-25 Foletta John D Automatic flushing system
JPS63221275A (ja) * 1987-03-11 1988-09-14 Koito Ind Co Ltd 小便器洗浄装置

Also Published As

Publication number Publication date
ES2036421T3 (es) 1993-05-16
JPH03290536A (ja) 1991-12-20
DE69100008T2 (de) 1993-03-18
EP0450955A1 (fr) 1991-10-09
DE69100008D1 (de) 1992-12-10
KR910018645A (ko) 1991-11-30

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