EP0025785B1 - Unit for hand washing - Google Patents

Unit for hand washing Download PDF

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Publication number
EP0025785B1
EP0025785B1 EP19800900396 EP80900396A EP0025785B1 EP 0025785 B1 EP0025785 B1 EP 0025785B1 EP 19800900396 EP19800900396 EP 19800900396 EP 80900396 A EP80900396 A EP 80900396A EP 0025785 B1 EP0025785 B1 EP 0025785B1
Authority
EP
European Patent Office
Prior art keywords
air
hand
opening
hot air
washing equipment
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
EP19800900396
Other languages
German (de)
French (fr)
Other versions
EP0025785A1 (en
Inventor
Rolf Lienhard
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.)
Maschinenfabrik Ad Schulthess and Co AG
Original Assignee
Maschinenfabrik Ad Schulthess and Co AG
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 to CH280079 priority Critical
Priority to CH2800/79 priority
Priority claimed from AT80900396T external-priority patent/AT1731T/en
Application filed by Maschinenfabrik Ad Schulthess and Co AG filed Critical Maschinenfabrik Ad Schulthess and Co AG
Publication of EP0025785A1 publication Critical patent/EP0025785A1/en
Application granted granted Critical
Publication of EP0025785B1 publication Critical patent/EP0025785B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/48—Drying by means of hot air
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K2005/1218—Table mounted; Dispensers integrated with the mixing tap
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K2210/00—Combinations of water taps, soap dispensers and hand dryers

Abstract

The wash basin (11) provided with a water supply (21) and an outlet tube (27), and a hot air dryer (12) are arranged in a common casing (10). A wet area (40) is provided above the wash basin (11). The air stream from the hot air dryer (12) is directed, due to the configuration of the walls of the wet area, towards a discharge opening (17) located in the back wall (161) of the wet area. A purification and sterilisation device is provided in the air stream between the discharge opening (17) and the suction opening (33) of the hot air fan (20) so as to prevent germs from coming out into the room. A control for the washing operation regulates the steps of wetting, washing, rinsing and drying. A dosing pump supplies the cleaning agent to the wet area. The unit presents the advantage to use little water and provide a maximum of hygiene.

Description

  • Bekannte Handwaschanlagen weisen unter anderem wenigstens ein Waschbecken mit Wasserzuführung und Wasserablauf und eine Anordnung zum Trocknen der Hände auf. In der Vergangenheit wurde schon viel über die Hygiene in und um solche Handwaschanlagen diskutiert.Known hand washing systems have, inter alia, at least one wash basin with water supply and water drain and an arrangement for drying the hands. There has been a lot of discussion in the past about hygiene in and around such hand washing systems.
  • So wurde beispielsweise auch dargelegt, dass die Betätigung der Wasserventile nicht manuell erfolgen sollte, weil die Berührung derselben, die üblicherweise mit ungewaschenen Händen erfolgt, Keime irgendwelcher Art von Benützer zu Benützer übertragen könnte.For example, it was also stated that the water valves should not be operated manually because touching them, which is usually done with unwashed hands, could transmit germs of any kind from user to user.
  • Weitschweifige Diskussionen über die bekannten Vorrichtungen zum Abtrocknen der Hände wurden ebenfalls schon veröffentlicht. So wird den mehrfach zu verwendenden Handtüchern jegliche Hygiene abgesprochen. Handtuchautomaten spenden bei genügend guter Wartung immer einen Abschnitt eines sauberen Teils einer Stoffbahn. Daneben sind Spender für Papierservietten oder auch von Stoffservietten zum Abtrocknen der Hände bekannt. Abgesehen von der oft unsorgfältigen Benützung, wobei die Servietten nicht ordentlich weggeräumt werden und/oder der Entwendung, sind wenigstens Teile davon der Luft im Raum ausgesetzt und wenn davon ausgegangen wird, dass der Raum immer voller Keime ist, von diesen beschlagen.Extensive discussions about the known devices for drying hands have also been published. In this way, all hygiene is denied for the reusable towels. With sufficient good maintenance, automatic towel dispensers always donate a section of a clean part of a fabric. In addition, dispensers for paper napkins or cloth napkins for drying hands are known. Apart from the often careless use, whereby the napkins are not properly put away and / or the theft, at least parts of them are exposed to the air in the room and if it is assumed that the room is always full of germs, they will fog up.
  • Als Alternative wurde dann der Warmlufthandtrockner geschaffen, bei dem Luft aus dem Raum oder Frischluft angesaugt wird und nach dem Durchlaufen durch einen Lufterhitzer in einem einzelnen oder in zwei sich kreuzenden Luftstrahlen nach unten geblasen wird. Aber auch hier wird der Hygiene nicht genügend Rechnung getragen, weil die Keime durch den relativ starken Luftstrom aus dem Warmlufthandtrockner im Raum herumgewirbelt werden könnten.As an alternative, the warm air hand dryer was then created, in which air is drawn in from the room or fresh air and after passing through an air heater is blown down in a single or in two intersecting air jets. But here too hygiene is not taken sufficiently into account, because the germs could be whirled around in the room by the relatively strong air flow from the warm air hand dryer.
  • Es kann somit als nachgewiesen betrachtet werden, dass bis heute noch keine Handwaschanlage vorhanden ist, mit der unter hygienisch einwandfreien Bedingungen die Hände gewaschen und wieder abgetrocknet werden können.It can therefore be regarded as proven that to this day there is still no hand washing system that can be used to wash and dry hands under perfectly hygienic conditions.
  • Die Aufgabe der Erfindung besteht in der Verbesserung der oben umschriebenen prekären Verhältnisse durch Schaffung einer Handwaschvorrichtung mit Waschbecken, Wasserzuführung und Wasserablauf sowie mit einem Warmlufthandtrockner gemäß der US-A-4 144 596 bzw. gemäss dem Oberbegriff des unabhängigen Anspruchs.The object of the invention is to improve the precarious conditions described above by creating a hand washing device with a sink, water supply and water drain and with a warm air hand dryer according to US-A-4 144 596 or according to the preamble of the independent claim.
  • Erfindungsgemäss wird diese Aufgabe durch die Merkmale im kennzeichnenden Teil des unabhängigen Anspruchs gelöst.According to the invention, this object is achieved by the features in the characterizing part of the independent claim.
  • Nachfolgend wird ein Ausführungsbeispiel der Erfindung an Hand der Zeichnung beschrieben, in welcher
    • Figur 1 einen Seitenriss durch eine erfindungsgemässe Handwaschvorrichtung im Schnitt und
    • Figur 2 einen Aufriss der Handwaschvorrichtung nach Fig. 1, wobei die untere Partie aufgerissen dargestellt ist, zeigen.
    An embodiment of the invention is described below with reference to the drawing, in which
    • 1 shows a side view through a hand washing device according to the invention in section and
    • FIG. 2 shows an elevation of the hand washing device according to FIG. 1, the lower part being shown torn open.
  • In der Zeichnung wurden die Wandstärken des Gehäuses nicht besonders angegeben sondern nur deren markante Umrisse.In the drawing, the wall thicknesses of the housing were not specified, only their striking outlines.
  • Das Gehäuse 10 umschliesst ein Waschbecken 11 mit einer Wasserzuführung 21 und einem Wasserablaufrohr 27 mit Geruchssyphon 28 sowie einen Warmlufthandtrockner 12 mit einem Ventilatorteil 20, einem Lufterhitzerteil 19 und einer Luftaustrittsöffnung 18. Neben der Wasserzuführung 21 verläuft eine zweite Leitung 23 für die Abgabe eines flüssigen Reinigungsmittels, wie beispielsweise flüssige Seife, das aus einem Vorratsbehälter 24 mittels einer Dosierpumpe 29 nach oben gepumpt wird. Die Wasserleitungsmündung 22, die Mündung 30 der Leitung 23 und die Luftaustrittsöffnung 18 sind im gleichen Gebiet nebeneinanderliegend angeordnet.The housing 10 encloses a wash basin 11 with a water supply 21 and a water drain pipe 27 with an odor siphon 28 as well as a warm air hand dryer 12 with a fan part 20, an air heater part 19 and an air outlet opening 18 , such as liquid soap, which is pumped up from a storage container 24 by means of a metering pump 29. The water line mouth 22, the mouth 30 of the line 23 and the air outlet opening 18 are arranged side by side in the same area.
  • Das Gehäuse 10 ist doppelwandig gebaut und besteht aus einer Vorderwand 13 mit einer Aussenwand 130 und einer Innenwand 131, zwei Seitenwänden 14, 15 mit je einer Aussenwand 140, 150 und je einer Innenwand 141, 151 sowie einer Rückwand 16 mit einer Aussenwand 160 und einer Innenwand 161. Dazu sind noch ein Deckenteil 31 mit einer Aussenwand 310 und einer Innenwand 311 sowie ein Bodenteil 32 mit einer Aussenwand 320 und einer Innenwand 321 vorhanden. Die Innenwand 321 des Bodenteils 32 bildet den inneren Umriss des Waschbeckens 11, und die Innenwand 311 des Deckenteils 31 trägt die Durchlassöffnungen für den Luftaustritt und die Wasser- und Seifenzuführungen 21, 23. Die Innenwand 161 der Rückwand 16 weist eine Abluftöffnung 17 auf.The housing 10 is double-walled and consists of a front wall 13 with an outer wall 130 and an inner wall 131, two side walls 14, 15, each with an outer wall 140, 150 and an inner wall 141, 151, and a rear wall 16 with an outer wall 160 and one Inner wall 161. In addition, there is a ceiling part 31 with an outer wall 310 and an inner wall 311 and a bottom part 32 with an outer wall 320 and an inner wall 321. The inner wall 321 of the bottom part 32 forms the inner contour of the wash basin 11, and the inner wall 311 of the ceiling part 31 carries the through openings for the air outlet and the water and soap supply lines 21, 23. The inner wall 161 of the rear wall 16 has an exhaust air opening 17.
  • Alle Innenwände 131, 141, 151, 161, 311 und 321 zusammen umschliessen eine Nasszelle 40 mit einer Oeffnung 41 in der Vorderwand 13, die ein bequemes Hineinreichen mit den beiden Händen 50 gestattet.All inner walls 131, 141, 151, 161, 311 and 321 together enclose a wet room 40 with an opening 41 in the front wall 13, which allows comfortable reaching in with both hands 50.
  • Neben den oben erwähnten Zuführungen 21, 23 für Wasser und Seife kann noch ein weiterer Behälter für ein Hautpflegemittel mit einer weiteren Zuführung in die Nasszelle 40 vorgesehen sein. Zwecks besserer Uebersicht wurde dies nicht eingezeichnet, weil vorgesehen werden kann, dass diese zusätzliche Einrichtung gleich ausgebildet sein könnte wie die Seifenspendeeinrichtung mit dem Vorratsbehälter 24, der Dosierpumpe 29, Zuführung 23 und Mündung 30.In addition to the above-mentioned feeders 21, 23 for water and soap, a further container for a skin care agent can be provided with a further feeder into the wet room 40. For the sake of a better overview, this was not shown because it can be provided that this additional device could be designed in the same way as the soap dispensing device with the storage container 24, the metering pump 29, feed 23 and mouth 30.
  • Die Wasserleitungsmündung kann beispielsweise als Brause ausgebildet sein. Die Speisung der Wasserzuführung erfolgt aus einem Warmwasseraufbereiter 25, der als Durchlauferhitzer oder als Speicher ausgebildet sein kann. Das Wasser wird mittels eines Absperrventils zugeführt und abgesperrt.The water pipe mouth can be designed, for example, as a shower. The water supply is supplied from a water heater 25, which can be designed as a water heater or as a store. The water is supplied and shut off by means of a shut-off valve.
  • Wie durch Pfeile in Fig. 1 angedeutet, sind die seitlichen Innenwände 141 und 151 sowie die vordere Innenwand 131 derart geformt, dass der Luftstrom aus der Luftaustrittsöffnung 18 vom Ventilator 20 her nicht durch die Oeffnung 41 in den Umgebungsraum austreten kann. Somit können im Zwischenraum zwischen der oberen Innenwand 311 und der oberen Aussenwand 310 im Gebiet der Luftströmung zwischen der Abluftöffnung 17 und der Ansaugöffnung 33 des Ventilators 20 Mittel zur Desinfektion und/oder zur Luftreinigung vorgesehen werden. Diese Mittel sind an sich bekannt, wie Staubfilter, Aktivkohlefilter allein oder in Verbindung mit einer Lampe für ultraviolettes Licht.As indicated by arrows in Fig. 1, the side inner walls 141 and 151 and the front inner wall 131 are shaped such that the Air flow from the air outlet opening 18 from the fan 20 cannot escape through the opening 41 into the surrounding space. Thus, means for disinfection and / or for air purification can be provided in the space between the upper inner wall 311 and the upper outer wall 310 in the area of the air flow between the exhaust air opening 17 and the suction opening 33 of the fan 20. These agents are known per se, such as dust filters, activated carbon filters alone or in connection with a lamp for ultraviolet light.
  • Es kann eine Steueranordnung vorgesehen sein, um die Waschvorgänge Benetzen, Waschen, Spülen und Trocknen zeitlich zu steuern. Als Auslösung lässt sich eine Lichtschranke zwischen den Vorderkanten der Seitenwände denken. Diese Lichtschranke müsste das Absperrventil 26 öffnen, um eine erste Menge Wasser aus dem Warmwasseraufbereiter 25 über die Wasserleitungsmündung abzugeben. Als nächstes müsste Seife aus dem Behälter 24 mittels der Dosierpumpe 29 in die Nasszelle 40 gebracht werden. Nach Ablauf einer Pausenzeit, die zum Reiben der Hände benützt werden sollte, um diese zu reinigen wird aus dem Warmwasseraufbereiter 25 eine weitere Menge Wasser gefördert, die zum sauberen Abspülen der schmutzigen Seifenreste genügen sollte. Schliesslich wird der Waschvorgang durch das Trocknen mittels des Warmluftrockners 12 beendet. Vor, während oder kurz nach dem Trockenvorgang wäre es denkbar, dass noch ein Hautpflegemittel gespendet würde.A control arrangement can be provided in order to time-control the wetting, washing, rinsing and drying processes. A light barrier between the front edges of the side walls can be thought of as a trigger. This light barrier would have to open the shut-off valve 26 in order to discharge a first amount of water from the water heater 25 via the water line mouth. Next, soap would have to be brought from the container 24 into the wet cell 40 by means of the metering pump 29. After a pause, which should be used to rub the hands in order to clean them, a further amount of water is conveyed from the water heater 25, which should be sufficient to rinse off the dirty soap residues cleanly. Finally, the washing process is ended by drying using the warm air dryer 12. Before, during or shortly after the drying process, it would be conceivable that a skin care product would be donated.
  • Eine solche Anordnung behebt alle einleitend genannten Vorwürfe bezüglich Reinlichkeit und Hygiene. Ein Benützer braucht keine Hahnen, Seifenspender oder dgl. zu berühren. Die Luft aus dem Warmlufthandtrockner wird gereinigt und entkeimt bevor sie entweder im Kreislauf wieder zugeführt oder nach aussen abgeführt wird. Damit, dass die Warmluft praktisch alle Wände der Nasszelle überstreicht, werden diese Wände ebenfalls getrocknet, so dass sich keine Bakterienstämme in günstiger feuchter Umwelt vermehren können.Such an arrangement eliminates all of the above-mentioned allegations regarding cleanliness and hygiene. A user does not need to touch cocks, soap dispensers or the like. The air from the hot air hand dryer is cleaned and sterilized before it is either returned to the circuit or discharged to the outside. So that the warm air covers practically all walls of the wet room, these walls are also dried, so that no bacterial strains can multiply in a favorable humid environment.
  • Das Programm für den Ablauf des Waschvorgangs könnte noch einen weiteren Schritt nach Wiederherstellung der Lichtschranke beinhalten, indem noch zusätzlich ein Desinfektionsmittel an die Wände der Nasszelle 40 versprüht Würde. Ausserdem könnte noch vorgesehen werden, dass mehrere, unterschiedlich lange dauernde Waschprogramme, mit mehr oder weniger Seifenabgabe programmiert würden, um auch eine genügende Reinigung bei stark verschmutzten Händen zu erlauben. Damit wirklich nichts mit schmutzigen Händen zu berühren wäre, könnte eine Umschaltung mit Beinen oder Füssen bewirkt werden.The program for the course of the washing process could include a further step after the light barrier has been restored by additionally spraying a disinfectant onto the walls of the wet cell 40. In addition, it could also be provided that several washing programs of different lengths were programmed with more or less soap dispensing in order to also allow sufficient cleaning for heavily soiled hands. So that nothing really could be touched with dirty hands, a switchover with legs or feet could be effected.
  • Ein weiterer Vorteil der erfindungsgemässen Handwaschvorrichtung kann noch darin gefunden werden, dass die geringst mögliche Wassermenge vorprogrammierbar ist, so, dass bei Waschanlagen mit beschränktem Wasservorrat, wie Eisenbahnwagen, Flugzeuge oder in trockenen Gebieten der Erde nicht aus Versehen der ganze Vorrat ausfliessen kann. Aber auch sonst ergibt sicht ein zusätzlicher umweltschützerischer Aspekt, indem Wärmeenergie für die Aufbereitung des Warmwassers eingespart und Abwasserkläranlagen usw. geringst mögliche Mengen Schmutzwasser zugeführt wird, indem die Wasserzuführung nicht unkontrolliert während längerer Zeit offen gelassen werden kann.Another advantage of the hand washing device according to the invention can be found in the fact that the smallest possible amount of water can be preprogrammed, so that in the case of washing systems with limited water supply, such as railroad cars, airplanes or in dry areas of the world, the entire supply cannot accidentally flow out. But there is also an additional environmental protection aspect, by saving thermal energy for the preparation of the hot water and adding the smallest possible amount of dirty water to wastewater treatment plants etc., because the water supply cannot be left open uncontrolled for a long time.

Claims (5)

1. Hand washing equipment with a wash-hand-basin (11), hot air hand dryer (12) and water processing unit (25) installed in a common housing (10), and also with a air outlet opening (1g) for the hot air hand dryer and a tap (22) arranged above the wash-hand-basin, and in which the wash-hand-basin is designed as a wet unit (40) with an opening (41) through which the hands can be inserted and has a waste water outflow (27), characterised in that in addition to the air outlet opening (18) and tap (22), all the discharge points (30) for cleansing, hand care and disinfecting agents terminate in the wet unit (40) within the housing (10), and that a waste air opening (17) for the air from the hot air hand dryer (12) is located in the rear wall (161) arranged distant from the hand insertion opening (41).
2. Hand washing equipment according to Claim 1, characterised in that at least the two side walls (141, 151) and the front wall (131) of the wet unit (40) are designed so as to effect a slight deflection of the air jet exiting from the air outlet opening (18) towards the waste air opening (17).
3. Hand washing equipment according to Claim 2, characterised in that means for disinfecting and/or purifying the air are provided in the air flow path between the waste air opening (17) and the air suction opening (33) of the hot air hand dryer (12).
4. Hand washing equipment according to Claim 1, characterised by a control arrangement for the sequential control of at least the procedures of wetting, washing, rinsing and drying.
5. Hand washing equipment according to Claim 4, characterised by means for effecting the operation of the control arrangement when a user inserts his hands through the opening (41).
EP19800900396 1979-03-26 1980-10-08 Unit for hand washing Expired EP0025785B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH280079 1979-03-26
CH2800/79 1979-03-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT80900396T AT1731T (en) 1979-03-26 1980-02-27 Hand washing device.

Publications (2)

Publication Number Publication Date
EP0025785A1 EP0025785A1 (en) 1981-04-01
EP0025785B1 true EP0025785B1 (en) 1982-11-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800900396 Expired EP0025785B1 (en) 1979-03-26 1980-10-08 Unit for hand washing

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Country Link
US (1) US4398310A (en)
EP (1) EP0025785B1 (en)
JP (1) JPS6027295B2 (en)
DE (1) DE3061018D1 (en)
WO (1) WO1980001983A1 (en)

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JPS56500321A (en) 1981-03-19
EP0025785A1 (en) 1981-04-01
WO1980001983A1 (en) 1980-10-02
DE3061018D1 (en) 1982-12-09
US4398310A (en) 1983-08-16
JPS6027295B2 (en) 1985-06-28

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