EP2322066B1 - Method and dispenser for releasing portions of a fluid - Google Patents
Method and dispenser for releasing portions of a fluid Download PDFInfo
- Publication number
- EP2322066B1 EP2322066B1 EP10014191.0A EP10014191A EP2322066B1 EP 2322066 B1 EP2322066 B1 EP 2322066B1 EP 10014191 A EP10014191 A EP 10014191A EP 2322066 B1 EP2322066 B1 EP 2322066B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- dispenser
- pump
- discharge opening
- conveying
- 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.)
- Active
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Classifications
-
- 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
- A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
- A47K5/1208—Dispensers for soap for liquid or pasty soap dispensing dosed volume by means of a flexible dispensing chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1097—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke
Definitions
- the invention relates to a method for lossless delivery of portions of a fluid from a supply by means of a dispenser having a reservoir, a line portion comprising a dispensing opening and a feed pump arranged between the reservoir and the dispensing opening, wherein after completion of each conveying operation at the dispensing opening pending Fluid is conveyed back through the conduit section, and contamination of each subsequent portion of the fluid is thereby at least substantially prevented, that the fluid is conveyed through a line section, which is made of an antimicrobial plastic, and a dispenser for use in this method.
- a sprayer for liquids has become known, which is provided with a hand-operated reciprocating pump. This sucks after delivery of the liquid during the return to the starting position not only the next portion of the liquid in the pump cylinder, but indirectly also remaining Liquid from the spray channel in a provided before the pump chamber back, from which the liquid is displaced again in the next operation of the pump.
- the antimicrobial plastic used for the spray channel and the chamber prevents settlement of these areas with microorganisms.
- the invention has now set itself the task of actively using a pump for the emptying of the last line section, and achieves this by reversing the conveying direction of the pump for the return conveyance of the fluid.
- the feed pump is designed as a peristaltic pump with a switchable conveying direction and the dispensing opening is provided on a line section which is made of an antimicrobially active plastic.
- a peristaltic pump is particularly suitable for the delivery of the various fluids in the method according to the invention, since it does not require check valves that do not allow a return of a fluid residue by the pump in the normal case.
- the line section In order to be able to easily exchange the line section, it is preferably fastened releasably to the dispenser without tools.
- the last line section is directed at least approximately vertically downwards, wherein the cross section of the line section is related to properties of the fluid to be dispensed: the less fluid the fluid is and the lower its surface tension, the smaller the diameter of the Be conduit section to guarantee the trouble-free return of the fluid, which is necessary to prevent dripping or drying.
- the diameter of the Be conduit section For alcoholic solutions, for example, a diameter of 1.6 mm has been found to be favorable.
- the tool-less interchangeability mentioned above is advantageous.
- a fluid dispenser has a housing 21 with a cover, in the upper region of a reservoir 23 is inserted into a liquid-tight receptacle 20 of an intermediate container 2 interchangeable.
- the reservoir 23 has a reducible volume and is in particular a foil bag or the like, so that the fluid to be dispensed is not replaced by air.
- a compact working block 1 is provided in which all the elements required for the function are combined.
- the working block 1 contains the intermediate container 2, from which a peristaltic pump 5 sucks in fluid and conveys it through a line section 8 to an outlet opening 9.
- the peristaltic pump 5 has an electric drive motor 6, in particular a DC motor whose speed is directly proportional to the motor voltage.
- a rotor On an output shaft, a rotor is fixed, are rotatably mounted on the two or three circumferentially projecting rollers 27 and rolling elements.
- a hose 28 is disposed around the rotor, which in section in Fig. 2 can be seen, and is squeezed by the rollers 27 upon rotation of the rotor so that fluid contained in the tube 28 is conveyed from the inlet 29 to the outlet 30.
- Such a peristaltic pump 5 is self-priming and is not affected by trapped air in their conveying effect, so it is well suited for the uniform dosage of portions of any fluid. Their conveying direction can be reversed by switching the drive motor 6, since it is valve-free.
- Fig. 3 shows a view obliquely from below into the work block 1.
- the work block has a molded plastic part, on the upper side of the intermediate container 2 is provided, which is closed with a receptacle 20 carrying lid 19, in particular welded.
- the lines and a control board are provided on the underside recesses for the peristaltic pump 5, which are provided.
- a hose 4 leads to the last line section 8 with the discharge opening 9.
- the inlet 29 of the soap pump 5 is connected by a further hose 31 with the downward protruding outlet 3 of the intermediate container 2 connected.
- the line section 8 is provided by a U-shaped clip 32 replaceable on the work block 1.
- the function of the dispenser is as follows: The dispensing of a portion of the fluid contained in the reservoir 23 by non-contact or via an actuating button initiated commissioning of the drive motor 6, which puts the peristaltic pump 5 in rotation and the fluid contained in the hose 28 through the hose 4 and the line section 8 promotes the discharge opening 9, from which it is discharged, for example, in the hand held. Once the predetermined portion is delivered, the drive motor 6 is switched in its direction of rotation, and conveys the fluid back to the reservoir 23, wherein at least the last line section 8, which in particular projects vertically downwards, is emptied. Optionally, the fluid can also be sucked back from a part of the tube 4. It can danender no fluid from the discharge opening 9 drip or flow or evaporate.
- the recirculated fluid is conveyed again loss-free to the discharge opening at the beginning of the next portion delivery. In this case, the contamination of the emptied line section 8 and the re-promoted subsequent portion of the fluid is avoided.
- the discharge opening 9 is closed.
- the line section 8 possibly also of the peristaltic pump 5 continuing hose 4, from an antimicrobial, bactericidal, fungicidal od. The like. Effective plastic is made.
- a layer is provided which contains a zeolite grid with embedded silver ions. Even after a longer break again promoted fluid can not come into contact with impurities on the inner surfaces of the empty line section 8, so that even when possible germ-free to handle fluids no discardable flow of contaminated material is delivered.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Reciprocating Pumps (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
Die Erfindung betrifft ein Verfahren zur möglichst verlustfreien Abgabe von Portionen eines Fluids aus einem Vorrat mittels eines Spenders, der einen Vorratsbehälter, einen eine Ausgabeöffnung umfassenden Leitungsabschnitt und eine zwischen dem Vorratsbehälter und der Ausgabeöffnung angeordnete Förderpumpe aufweist, wobei nach Abschluss jedes Fördervorganges an der Ausgabeöffnung anstehendes Fluid durch den Leitungsabschnitt zurückgefördert wird, und einer Verunreinigung jeder Folgeportion des Fluids dadurch zumindest weitgehend vorgebeugt wird, dass das Fluid durch einen Leitungsabschnitt gefördert wird, der aus einem antimikrobiell wirksamen Kunststoff gefertigt ist, sowie einen Spender zur Verwendung in diesem Verfahren.The invention relates to a method for lossless delivery of portions of a fluid from a supply by means of a dispenser having a reservoir, a line portion comprising a dispensing opening and a feed pump arranged between the reservoir and the dispensing opening, wherein after completion of each conveying operation at the dispensing opening pending Fluid is conveyed back through the conduit section, and contamination of each subsequent portion of the fluid is thereby at least substantially prevented, that the fluid is conveyed through a line section, which is made of an antimicrobial plastic, and a dispenser for use in this method.
Bei einer portionsweisen Abgabe eines Fluids aus einem Vorrat ist es wünschenswert, wenn die Summe der Einzelportionen möglichst der Menge des Vorrates entspricht, wobei Verluste bzw. Schwund unvermeidbar sind. Diese Größe ist auch von der Art des zu spendenden Fluids abhängig, bevorzugt ist hier von flüssigen, pastösen oder gelartigen Massen die Rede, wobei dies Seifen, Reinigungsmittel, Desinfektionsmittel, Pflegemittel wie Hautcreme oder Zahnpasta, aber auch Nahrungsmittel, wie Ketchup oder Senf, usw. sein können.When dispensing portions of a fluid from a supply, it is desirable if the sum of the individual portions as possible corresponds to the amount of stock, with losses or fading are unavoidable. This size is also dependent on the type of fluid to be dispensed, preferred here is liquid, pasty or gelatinous masses, which include soaps, detergents, disinfectants, care products such as skin cream or toothpaste, but also foods such as ketchup or mustard, etc . could be.
Alle diese Substanzen neigen zu Veränderungen ihrer Konsistenz durch Eindickung oder Austrocknung, zu Ablagerungen in strömungsarmen bzw. mit Luft in Kontakt kommenden Leitungsabschnitten, vor allem im letzten, die Ausgabeöffnung umfassenden Leitungsabschnitt. An den Substanzresten können sich Mikroorganismen ansiedeln, sodass von Zeit zu Zeit intensive Reinigungsmaßnahmen erforderlich sind, um die Funktionsfähigkeit des Spenders zu erhalten. Darüber hinaus bedeuten diese Veränderungen einen Verlust, der bei ständigem Gebrauch des Spenders nur geringe Mengen, bei größeren Pausen zwischen der Abgabe aber recht beträchtliche Mengen an Fluid umfasst.All of these substances tend to change their consistency by thickening or dehydration, deposits in low-flow or in contact with air line sections, especially in the last, the discharge port comprehensive line section. Microorganisms can settle on the substance residues, so that from time to time intensive cleaning measures are required to maintain the functionality of the donor. In addition, these changes mean a loss that involves only small amounts when the donor is in constant use, but rather large amounts of fluid during longer intervals between deliveries.
Aus der
Bei einem zur Verwendung im erfindungsgemäßen Verfahren geeigneten Spender ist daher vorgesehen, dass die Förderpumpe als Schlauchquetschpumpe mit umschaltbarer Förderrichtung ausgebildet und die Ausgabeöffnung an einem Leitungsabschnitt vorgesehen ist, der aus einem antimikrobiell wirksamen Kunststoff gefertigt ist. Gerade eine Schlauchquetschpumpe eignet sich beim erfindungsgemäßen Verfahren besonders für die Abgabe der verschiedenen Fluide, da sie keine Rückschlagventile erfordert, die eine Rückförderung eines Fluidrests durch die Förderpumpe im Normalfall nicht zulassen.In a dispenser suitable for use in the method according to the invention, it is therefore provided that the feed pump is designed as a peristaltic pump with a switchable conveying direction and the dispensing opening is provided on a line section which is made of an antimicrobially active plastic. Especially a peristaltic pump is particularly suitable for the delivery of the various fluids in the method according to the invention, since it does not require check valves that do not allow a return of a fluid residue by the pump in the normal case.
Um den Leitungsabschnitt einfach austauschen zu können, ist er bevorzugt werkzeuglos lösbar am Spender befestigt.In order to be able to easily exchange the line section, it is preferably fastened releasably to the dispenser without tools.
In vielen Fällen ist bei Spendern der letzte Leitungsabschnitt zumindest annähernd vertikal nach unten gerichtet, wobei der Querschnitt des Leitungsabschnittes in einem Zusammenhang mit Eigenschaften des zu spendenden Fluids steht: Je dünnflüssiger das Fluid ist und je geringer seine Oberflächenspannung ist, desto kleiner muss der Durchmesser des Leitungsabschnitts sein, um die störungsfreie Rückförderung des Fluids zu garantieren, die notwendig ist, um das Nachtropfen bzw. Antrocknen zu vermeiden. Für alkoholische Lösungen hat sich beispielsweise ein Durchmesser von 1,6 mm als günstig herausgestellt. Um den Spender für unterschiedliche Fluide einsetzen zu können, ist die vorstehend erwähnte werkzeuglose Tauschbarkeit natürlich von Vorteil.In many cases, in donors, the last line section is directed at least approximately vertically downwards, wherein the cross section of the line section is related to properties of the fluid to be dispensed: the less fluid the fluid is and the lower its surface tension, the smaller the diameter of the Be conduit section to guarantee the trouble-free return of the fluid, which is necessary to prevent dripping or drying. For alcoholic solutions, for example, a diameter of 1.6 mm has been found to be favorable. Of course, to use the dispenser for different fluids, the tool-less interchangeability mentioned above is advantageous.
Nachstehend wird nun die Erfindung anhand der Figuren der beiliegenden Zeichnung näher beschrieben, ohne darauf beschränkt zu sein. Es zeigen:
-
Fig. 1 eine Vorderansicht eines Fluidspenders mit abgenommener Abdeckung, -
Fig. 2 einen Vertikalschnitt durch den unteren Teil des Spenders, -
Fig. 3 eine Schrägansicht des Arbeitsblockes von unten, und -
Fig. 4 eine Schrägansicht des die Abgabeöffnung umfassenden Leitungsabschnittes.
-
Fig. 1 a front view of a fluid dispenser with removed cover, -
Fig. 2 a vertical section through the lower part of the dispenser, -
Fig. 3 an oblique view of the working block from below, and -
Fig. 4 an oblique view of the dispensing opening comprehensive line section.
Ein Fluidspender weist ein Gehäuse 21 mit einer Abdeckung auf, in dessen oberen Bereich ein Vorratsbehälter 23 in eine flüssigkeitsdichte Aufnahme 20 eines Zwischenbehälters 2 austauschbar eingesetzt ist. Der Vorratsbehälter 23 weist ein verkleinerbares Volumen auf und ist insbesondere ein Folienbeutel oder dergleichen, sodass das abzugebende Fluid nicht durch Luft ersetzt wird. Im unteren Bereich des Spenders ist ein kompakter Arbeitsblock 1 vorgesehen, in dem alle für die Funktion erforderlichen Elemente zusammengefasst sind. Der Arbeitsblock 1 enthält den Zwischenbehälter 2, aus dem eine Schlauchquetschpumpe 5 Fluid ansaugt und durch einen Leitungsabschnitt 8 zu einer Ausgabeöffnung 9 fördert.A fluid dispenser has a
Die Schlauchquetschpumpe 5 weist einen elektrischen Antriebsmotor 6 auf, insbesondere einen Gleichstrommotor, dessen Drehzahl direkt proportional zur Motorspannung ist. An einer Abtriebswelle ist ein Rotor befestigt, an dem zwei oder drei über den Umfang vorstehende Rollen 27 bzw. Wälzkörper drehbar gelagert sind. Etwa im Halbkreis ist um den Rotor ein Schlauch 28 angeordnet, der im Schnitt in
Die Funktion des Spenders ist wie folgt: Die Abgabe einer Portion des im Vorratsbehälter 23 enthaltenen Fluids erfolgt durch berührungslose oder über eine Betätigungstaste veranlasste Inbetriebnahme des Antriebsmotors 6, der die Schlauchquetschpumpe 5 in Drehung versetzt und das im Schlauch 28 enthaltene Fluid durch den Schlauch 4 und den Leitungsabschnitt 8 zur Ausgabeöffnung 9 fördert, aus der es beispielsweise in die untergehaltene Hand abgegeben wird. Sobald die vorbestimmte Portion abgegeben ist, wird der Antriebsmotor 6 in seiner Drehrichtung umgeschaltet, und fördert das Fluid zurück zum Vorratsbehälter 23, wobei zumindest der letzte Leitungsabschnitt 8, der insbesondere vertikal nach unten ragt, entleert ist. Gegebenenfalls kann das Fluid auch aus einem Teil des Schlauches 4 rückgesaugt werden. Es kann daner kein Fluid aus der Ausgabeöffnung 9 austropfen oder ausfließen bzw. verdunsten.The function of the dispenser is as follows: The dispensing of a portion of the fluid contained in the
Das rückgeförderte Fluid wird zu Beginn der nächsten Portionsabgabe wieder verlustfrei zur Ausgabeöffnung gefördert. Dabei wird die Verunreinigung des entleerten Leitungsabschnitts 8 bzw. der wieder geförderten Folgeportion des Fluids vermieden.The recirculated fluid is conveyed again loss-free to the discharge opening at the beginning of the next portion delivery. In this case, the contamination of the
Eine Möglichkeit sieht vor, dass die Ausgabeöffnung 9 geschlossen wird. Eine wesentlich einfachere und vor allem gegen die Ansiedelung von Bakterien wirksame Möglichkeit sieht vor, dass der Leitungsabschnitt 8, gegebenenfalls auch der von der Schlauchquetschpumpe 5 weiterführende Schlauch 4, aus einem antimikrobiell, bakterizid, fungizid od. dgl. wirksamen Kunststoff gefertigt ist. An der Innenfläche des Leitungsabschnittes 8 und des Schlauches 4 ist insbesondere eine Schicht vorgesehen, die ein Zeolithgitter mit eingebetteten Silberionen enthält. Auch nach einer längeren Pause wieder gefördertes Fluid kann nicht mit Verunreinigungen an den Innenflächen des leeren Leitungsabschnitts 8 in Berührung kommen, sodass auch bei möglichst keimfrei zu handhabenden Fluiden kein zu verwerfender Vorlauf an verunreinigtem Material abgegeben wird.One possibility provides that the
Claims (3)
- A method for dispensing portions of a fluid, preferably without loss, from a supply by means of a dispenser comprising a storage container (23), a pipe section (8) comprising a discharge opening (9), and a conveying pump (5) arranged between the storage container (23) and the discharge opening (9), wherein after completion of each conveyance process the fluid abutting the discharge opening (9) is conveyed back through the pipe section (8) and a contamination of each following portion of the fluid is at least essentially prevented by conveying the fluid through a pipe section (8) that is made of anti-microbial active plastic, characterized in that the conveying direction of the pump (5) is reversed for conveying the fluid back.
- A dispenser for usage in the method according to claim 1, comprising an exchangeable storage container (23) containing a fluid, comprising a discharge opening (9), and a conveying pump (5) arranged between the storage container (23) and the discharge opening (9), characterized in that the conveying pump (5) is in the form of a constricted pump comprising a reversible conveying direction and that the discharge opening (9) is provided in a pipe section (8) made of anti-microbial active plastic.
- A dispenser according to claim 2, characterized in that the pipe section (8) is detachably arranged at the dispenser without requiring tools.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0176109A AT508916B1 (en) | 2009-11-06 | 2009-11-06 | DISPENSER FOR DELIVERING PORTIONS OF A FLUID |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2322066A1 EP2322066A1 (en) | 2011-05-18 |
EP2322066B1 true EP2322066B1 (en) | 2015-10-21 |
Family
ID=43480954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10014191.0A Active EP2322066B1 (en) | 2009-11-06 | 2010-11-02 | Method and dispenser for releasing portions of a fluid |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2322066B1 (en) |
AT (1) | AT508916B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023110368A1 (en) * | 2021-12-17 | 2023-06-22 | Toi Toi & Dixi Group Gmbh | Sanitary cubicle, in particular a toilet cubicle |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5781942A (en) | 1989-07-12 | 1998-07-21 | Sloan Valve Company | Wash stations and method of operation |
DE4344306A1 (en) | 1992-12-24 | 1994-06-30 | Theodor Dipl Ing Krall | Plastic article, esp. tube, contg. metallic silver@ |
CH688021A5 (en) | 1994-07-18 | 1997-04-30 | Cws Ag | Apparatus for formation of soap scum and its use. |
EP0861128B1 (en) | 1995-11-17 | 2003-02-19 | Ursatec Verpackung Gmbh | Fluids dispenser designed to protect the contents from contamination |
DE19642976A1 (en) | 1996-10-18 | 1998-04-23 | Pfeiffer Erich Gmbh & Co Kg | Discharge device for media |
US6082586A (en) * | 1998-03-30 | 2000-07-04 | Deb Ip Limited | Liquid dispenser for dispensing foam |
FR2779129B1 (en) * | 1998-05-26 | 2000-08-18 | Sofab | DIFFUSER OF LIQUID PRODUCTS IN AEROSOL FORM |
DE60301272T2 (en) | 2003-06-26 | 2006-06-08 | Qts S.R.L., Caponago | Dispenser for foaming detergent |
DE102007035063A1 (en) | 2007-07-26 | 2009-01-29 | Spiegelberg (Gmbh & Co.) Kg | Process for the preparation of an antimicrobial plastic product |
DE202007010891U1 (en) | 2007-08-03 | 2008-12-18 | Rehau Ag + Co | pipe |
DE102007043311B4 (en) | 2007-09-12 | 2010-02-25 | Trovotech Gmbh | Antimicrobial composition, process for its preparation and its use |
-
2009
- 2009-11-06 AT AT0176109A patent/AT508916B1/en not_active IP Right Cessation
-
2010
- 2010-11-02 EP EP10014191.0A patent/EP2322066B1/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023110368A1 (en) * | 2021-12-17 | 2023-06-22 | Toi Toi & Dixi Group Gmbh | Sanitary cubicle, in particular a toilet cubicle |
Also Published As
Publication number | Publication date |
---|---|
AT508916B1 (en) | 2011-05-15 |
AT508916A4 (en) | 2011-05-15 |
EP2322066A1 (en) | 2011-05-18 |
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