EP1871539B1 - Dispenser for discharging liquid to pasty materials - Google Patents

Dispenser for discharging liquid to pasty materials Download PDF

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Publication number
EP1871539B1
EP1871539B1 EP06743302A EP06743302A EP1871539B1 EP 1871539 B1 EP1871539 B1 EP 1871539B1 EP 06743302 A EP06743302 A EP 06743302A EP 06743302 A EP06743302 A EP 06743302A EP 1871539 B1 EP1871539 B1 EP 1871539B1
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EP
European Patent Office
Prior art keywords
dispenser
pump chamber
storage container
dispenser according
inlet valve
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.)
Not-in-force
Application number
EP06743302A
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German (de)
French (fr)
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EP1871539A1 (en
Inventor
Günter Auer
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Aptar Villingen GmbH
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Megaplast GmbH
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Publication of EP1871539A1 publication Critical patent/EP1871539A1/en
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    • 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
    • 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
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • 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
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • 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
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container

Definitions

  • the invention relates to a dispenser with the features of the preamble of claim 1.
  • the invention has for its object to provide a dispenser as initially provided, which is advantageously designed in view of the issue addressed.
  • a check valve as it is generally used as an inlet valve in the pumping chamber, in particular in highly viscous media after use of the dispenser is not always closed.
  • the suction phase follows, in which product is sucked from the storage container under the opening of the pumping chamber inlet valve into the pumping chamber. Accordingly, the valve is open.
  • an immediate transition into the pumping chamber from the storage container is therefore given, so that the mentioned pressure surges could possibly have a negative effect under certain circumstances.
  • a certain improvement may optionally be achieved insofar as an elastically formed inlet valve is provided, in particular also an inlet valve, which in this case is elastic only, is biased into its closed position.
  • the pumping chamber may be formed by a pumping bellows, as it generally, with respect to the pumping chamber walls, in the DE 87 02 705 U1 or the DE 86 29 681 is described.
  • the disclosure of these documents is hereby incorporated in full in the disclosure of the present application, including for the purpose of the features of the publications referred to in claims of the present application.
  • the pump chamber wall replaces an otherwise required return spring due to its elastic restoring force.
  • the biased in its closed position inlet valve is preferably also a total of an elastic plastic material. This is possible due to the special design of the inlet valve in the form of a double cup-shaped or an upwardly stepwise expanding, hollow inside part.
  • the sealing takes place via an outer peripheral edge of the thus far circular cross-section part, at a step transition. From the lower, the pumping chamber facing bottom of the inlet valve can still emanate a Zentri mecanicsstiel.
  • the bias of the inlet valve and / or the exhaust valve in the closed position does not necessarily mean that they are preloaded on the Cover wall rest.
  • this can also mean that only an approximately, but possibly still a gap release closure is provided. This may even be advantageous in view of a continuous connection of the mass in the pumping chamber and storage container for longer periods of disuse.
  • the inlet valve which is preferably integrated into the pump bellows, has in detail a bridge part, which preferably consists of a soft plastic, as otherwise the pump bellows as a whole. From this bridge part in turn can run around a sealing lip, which cooperates with a mating sealing part on the telescope outer part.
  • a dispenser 1 consisting of a pump head 2 and a storage container. 3
  • a largely loose inner bag 4 is arranged, in which the mass to be dispensed is contained.
  • the inner bag 4 may be connected in places in the bottom area of the storage container 3 or along a line to the ground, so that an everting of the inner bag is prevented.
  • the inner bag 4 is further secured in the neck region 5 of the storage container 3 with this.
  • the pump head 2 has a modular design and can be inserted from above into the storage container 3.
  • the connection between the storage container 3 and the pump head 2 is achieved by means of an adapter part 6, due to the round design of the pump head 2, in any case of the telescope outer part 15 and the telescope inner part 10, in the cross-sections Fig. 1 respectively.
  • Fig. 2 presents itself differently.
  • the adapter part 6 forms a heel region 16, which in the transverse axis bb, cf. Fig. 2 , is given only as a single wall 17.
  • the latching or clamping connection between the adapter part 6 and the storage container 3 is partially, in the region of the step surface 16, given by a separate detent wall 18, with the associated, designed for latching neck area 5 of the storage container 3 cooperates.
  • this interaction takes over the wall 17, which in this area also has its own locking bead 19, cf. Fig. 2 and 5 , trains.
  • the pump head 2 is also covered by an overcap 7.
  • the pump bellows 20 is designed to extend in a vertical cross-section zigzag, however, as it would result from a horizontal cross-section, basically formed circular.
  • This is also preferably a plastic injection molded part, made of a correspondingly flexible plastic. Is formed integrated in the pump bellows foot part 9 of an inlet valve, the opposite interaction part is integrated into the telescopic outer part 15 of the pump head 2.
  • the pump head 2 on a telescope inner part 10 both telescoping outside the pumping chamber 8 with each other.
  • the telescope outer part 15 forms in a further detail a circumferential support base 21, in which the foot region of the pump bellows 20 is seated on the underside. In cooperation with an inner surface of the support base 21. In this area, the pump bellows 20 are no longer bellows-like, but with a solid wall, which has a reinforced triangular cross-section in the overlapping region of the support base 21.
  • the counterpart part 13 has a subsection 31 protruding into the fold region of the pumping chamber 8, which is basically formed like a cylinder, at its lower end also has a guide section 30 formed in the form of an inner double wall, over a partial region of the length of the section 31, in which the seat part 12 is guided.
  • the seat part 12 closes on the underside approximately with the lower end of the guide member 30 from.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The dispenser for liquids and pastes comprises a rigid casing (3) containing a flexible bag filled with the material to be dispensed. A pump mounted at the top of the dispenser comprises a flexible pumping bellows (20) with an outlet valve (11) fitted above it.

Description

Die Erfindung betrifft einen Spender mit den Merkmalen des Oberbegriffes des Anspruchs 1.The invention relates to a dispenser with the features of the preamble of claim 1.

Derartige Spender sind bereits in vielfältigen Ausgestaituxtgem bekannt geworden. Beispielsweise ist auf die FR 2 647 418 A1 oder die DE 34 42 092 A1 zu verweisen.Such dispensers have already become known in various Ausgestaituxtgem. For example, on the FR 2 647 418 A1 or the DE 34 42 092 A1 to refer.

Bei derartigen Spendern kann es allerdings zu einer gewissen Nachteiligkeit kommen. Bei dem Transport solcher Spender kann es zu Schwingungen der Masse oder Druckstößen in der Masse kommen, die sich bis hin zu eine unerwünschten Produktaustritt auswirken. Dies insbesondere auch, wenn bereits eine Teilentleerung gegeben ist und eine, gegebenenfalls grundsätzlich vorgesehene, Transportsicherung nicht aktiviert wurde.In such dispensers, however, it can come to a certain disadvantage. The transport of such dispensers can lead to vibrations of the mass or pressure surges in the mass, which have an adverse effect on product leakage. This in particular even if a partial emptying is already given and, if necessary, in principle planned, transport security has not been activated.

Zum Stand der Technik ist weiter auf die DE 20019540 U1 zu verweisen. Hieraus ist ein Spender zur Ausgabe flüssiger oder pastöser Massen mit einem Pumpenkopf bekannt, in welchem die ein Ein- und Auslassventil aufweisende Pumpkammer eine flexible Pumpkanunerwandung aufweist. Darüber hinaus ist auch die DE 3442092 A1 zu verweisen. Hieraus ist ein Spender mit den Merkmalen des Oberbegriffes des Anspruches 1 bekannt.The state of the art is further on the DE 20019540 U1 to refer. From this, a dispenser for dispensing liquid or pasty masses with a pump head is known in which the pumping chamber having an inlet and outlet valve has a flexible pump channel wall. In addition, is also the DE 3442092 A1 to refer. From this, a dispenser with the features of the preamble of claim 1 is known.

Der Erfindung liegt die Aufgabe zugrunde, einen Spender wie eingangs vorausgesetzt anzugeben, der im Hinblick auf die angesprochene Problematik vorteilhaft ausgebildet ist.The invention has for its object to provide a dispenser as initially provided, which is advantageously designed in view of the issue addressed.

Diese Aufgabe ist beim Gegenstand des Anspruches 1 gelöst, wobei darauf abgestellt ist, dass die Pumpkammerwandung des Pumpenkopfes flexibel ausgebildet ist, dass der Innenbeutel im Bodenbereich des Vorratsbehältnisses stellenweise oder entlang einer Linie mit dem Boden verbunden ist, so dass ein Stülpen des Innenbeutels verhindert ist, und dass der Innenbeutel im Halsbereich des Vorratsbehältnisses an diesem befestigt ist.. Aufgrund einer solchen flexiblen Pumpkannnemvartdung kann bei einem Spender der hier vorausgesetzten Art vorteilhaft eine Druckschwankung, zumindest zu einem gewissen Teil, aufgefangen werden. Beispielsweise kann auch ergänzend eine Belastung oder Vorspannung des Auslassventils so eingestellt werden, im Vergleich zu der Elastizität der Pumpkammerwandung, dass eine Druckspitze praktisch vollständig oder jedenfalls zu einem sehr erheblichen Maße in der Pumpkammerwandung abgefedert wird. Diese Ausgestaltung ist insbesondere auch dann vorteilhaft, wenn, was üblicherweise der Fall ist, dass Ein und Auslassventil im Ruhezustand des Spenders nicht definitiv schließen. Aus Gründen des Zusammenhalts in der Masse im unbetätigten Zustand kann dies vorgesehen sein.This object is achieved in the subject matter of claim 1, wherein it is geared to that the pumping chamber wall of the pump head flexible is formed, that the inner bag in the bottom region of the storage container is connected in places or along a line to the bottom, so that an everting of the inner bag is prevented, and that the inner bag in the neck region of the storage container is attached to this .. Due to such a flexible pumping may in a donor of the type presupposed here advantageously a pressure fluctuation, at least to a certain extent, be collected. For example, can also be a burden or Pre-tension of the exhaust valve can be adjusted so compared to the elasticity of the pumping chamber, that a pressure peak is cushioned almost completely or at least to a very considerable extent in the pumping chamber. This embodiment is particularly advantageous if, which is usually the case that inlet and outlet valve in the idle state of the donor does not close definitively. For reasons of cohesion in the mass in the unactuated state, this may be provided.

Darüber hinaus ist ein Rückschlagventil, wie es allgemein als Einlassventil in die Pumpkammer eingesetzt wird, insbesondere bei hoch viskosen Medien nach einem Gebrauch des Spenders nicht immer geschlossen. Denn nach einem Spendehub eines Spenders schließt sich die Ansaugphase an, in welcher Produkt aus dem Vorratsbehältnis unter Öffnung des Pumpkammer-Eingangsventils in die Pumpkammer gesaugt wird. Entsprechend ist das Ventil geöffnet. Insbesondere auch im Zusammenhang mit solchen hoch viskosen Medien ist daher ein unmittelbarer Übergang in die Pumpkammer vom Vorratsbehältnis her gegeben, so dass sich die erwähnten Druckstöße unter Umständen entsprechend negativ auswirken könnten. Eine gewisse Verbesserung kann gegebenenfalls insofern erreicht werden, wenn ein elastisch ausgebildetes Einlaßventil vorgesehen wird, insbesondere auch ein - in diesem Fall nur beispielsweise elastisches - in seine Verschlussstellung vorgespanntes Einlassventil vorgesehen wird.In addition, a check valve, as it is generally used as an inlet valve in the pumping chamber, in particular in highly viscous media after use of the dispenser is not always closed. After a dispensing stroke of a dispenser, the suction phase follows, in which product is sucked from the storage container under the opening of the pumping chamber inlet valve into the pumping chamber. Accordingly, the valve is open. In particular, in connection with such highly viscous media, an immediate transition into the pumping chamber from the storage container is therefore given, so that the mentioned pressure surges could possibly have a negative effect under certain circumstances. A certain improvement may optionally be achieved insofar as an elastically formed inlet valve is provided, in particular also an inlet valve, which in this case is elastic only, is biased into its closed position.

Verteilhaft ist es auch, wenn eine solche Pumpkammerwandung eingesetzt wird, die sogleich aufgrund ihrer elastischen Rückstellkraft eine sonst erforderliche Rückstellfeder ersetzt. Da eine solche Rückstellfeder in der Regel eine metallische Feder ist, ist es also mit einem hier beschriebenen Spender ohne weiteres möglich, einen ohne Metallteile auskommende Spender auszubilden.Distributive, it is also when such a pumping chamber is used, which immediately replaced due to their elastic restoring force an otherwise required return spring. Since such a return spring is usually a metallic spring, so it is with a dispenser described here readily possible to form a dispensing without metal parts dispenser.

In weiterer Einzelheit kann die Pumpkammer durch einen Pumpenbalg gebildet sein, wie er etwa grundsätzlich, hinsichtlich der Pumpkammerwandungen, in der DE 87 02 705 U1 oder der DE 86 29 681 beschrieben ist. Der Offenbarungsgehalt dieser Druckschriften wird hiermit vollinhaltlich auch in die Offenbarung vorliegender Anmeldung, auch zum Zwecke Merkmale der in Bezug genommenen Druckschriften in Ansprüche vorliegender Anmeldung einzubeziehen, aufgenommen.In a further detail, the pumping chamber may be formed by a pumping bellows, as it generally, with respect to the pumping chamber walls, in the DE 87 02 705 U1 or the DE 86 29 681 is described. The disclosure of these documents is hereby incorporated in full in the disclosure of the present application, including for the purpose of the features of the publications referred to in claims of the present application.

Es ist auch bevorzugt, dass die Pumpkammerwandung aufgrund ihrer elastischen Rückstellkraft eine sonst erforderliche Rückstellfeder ersetzt.It is also preferred that the pump chamber wall replaces an otherwise required return spring due to its elastic restoring force.

Das in seine Verschlussstellung vorgespannte Einlassventil besteht vorzugsweise auch insgesamt aus einem elastischen Kunststoffmaterial. Dies ist möglich aufgrund der besonderen Gestaltung des Einlassventils in Form eines doppelt topfförmigen bzw. eines sich nach oben stufenartig erweiternden, innen hohlen Teils. Die Abdichtung erfolgt über eine äußere Randkante des insofern kreisförmigen Querschnitt aufweisenden Teils, an einem Stufenübergang. Von dem unteren, der Pumpkammer zugewandten Boden des Einlassventils kann noch ein Zentrierungsstiel ausgehen.The biased in its closed position inlet valve is preferably also a total of an elastic plastic material. This is possible due to the special design of the inlet valve in the form of a double cup-shaped or an upwardly stepwise expanding, hollow inside part. The sealing takes place via an outer peripheral edge of the thus far circular cross-section part, at a step transition. From the lower, the pumping chamber facing bottom of the inlet valve can still emanate a Zentrierungsstiel.

Die Vorspannung des Einlassventils und/oder des Auslassventils in die Verschlussstellung bedeutet nicht notwendig, dass sie mit Vorspannung an der Verschlusswandung anliegen. Insbesondere für das Einlassventil kann dies auch bedeuten, dass nur eine annähernd, aber gegebenenfalls noch einen Spalt freilassende Schließung vorgesehen ist. Dies kann sogar vorteilhaft sein im Hinblick auf eine kontinuierliche Verbindung der Masse in Pumpkammer und Vorratsbehältnis für etwa längere Perioden des Nichtgebrauchs. Das bevorzugt in den Pumpenbalg integriert ausgebildete Einlassventil weist in Einzelheit ein Brückenteil auf, das bevorzugt aus einem Weichkunststoff, wie im Übrigen der Pumpenbalg insgesamt, besteht. Von diesem Brückenteil wiederum kann umlaufend eine Dichtlippe ausgehen, die mit einem Gegendichtteil an dem Teleskopaußenteil zusammenwirkt.The bias of the inlet valve and / or the exhaust valve in the closed position does not necessarily mean that they are preloaded on the Cover wall rest. For the inlet valve in particular, this can also mean that only an approximately, but possibly still a gap release closure is provided. This may even be advantageous in view of a continuous connection of the mass in the pumping chamber and storage container for longer periods of disuse. The inlet valve, which is preferably integrated into the pump bellows, has in detail a bridge part, which preferably consists of a soft plastic, as otherwise the pump bellows as a whole. From this bridge part in turn can run around a sealing lip, which cooperates with a mating sealing part on the telescope outer part.

Nachstehend ist die Erfindung des Weiteren anhand der beigefügten Zeichnung, die jedoch lediglich ein Ausfühungsbeispiel darstellt, erläutert. Hierbei zeigt:

Fig. 1
einen Querschnitt durch einen Spender geschnitten entlang der Längsachse a-a in Fig. 3;
Fig. 2
einen Querschnitt durch den Spender, geschnitten entlang der Querachse b-b in Fig. 3;
Fig. 3
eine Draufsicht auf den Spender gemäß Fig.1 bzw. Fig. 2;
Fig. 4
einen Querschnitt durch den Pumpenkopf, geschnitten entlang der Längsachse c-c in Fig. 6;
Fig. 5
eine Darstellung gemäß Fig. 4, geschnitten entlang der Querachse d-d in Fig. 6;
Fig. 6
eine Draufsicht auf den Spendekopf gemäß Fig. 4 bzw. Fig. 5, bei abgenommener Überkappe.
The invention will be further explained below with reference to the accompanying drawing, which, however, is merely an example of an embodiment. Hereby shows:
Fig. 1
a cross-section through a dispenser cut along the longitudinal axis aa in Fig. 3 ;
Fig. 2
a cross section through the dispenser, cut along the transverse axis bb in Fig. 3 ;
Fig. 3
a plan view of the dispenser according to Fig.1 respectively. Fig. 2 ;
Fig. 4
a cross section through the pump head, cut along the longitudinal axis cc in Fig. 6 ;
Fig. 5
a representation according to Fig. 4 , cut along the transverse axis dd in Fig. 6 ;
Fig. 6
a plan view of the dispensing head according to Fig. 4 respectively. Fig. 5 , with removed overcap.

Dargestellt und beschrieben ist zunächst mit Bezug zu den Fig. 1 und 2 ein Spender 1 bestehend aus einem Pumpenkopf 2 und einem Vorratsbehältnis 3.Illustrated and described first with reference to the Fig. 1 and 2 a dispenser 1 consisting of a pump head 2 and a storage container. 3

Innerhalb des Vorratsbehältnisses 3 ist ein weitgehend loser Innenbeutel 4 angeordnet, in welchen die zu spendende Masse enthalten ist. Der Innenbeutel 4 kann im Bodenbereich des Vorratsbehältnisses 3 stellenweise oder entlang einer Linie mit dem Boden verbunden sein, so dass ein Stülpen des Innenbeutels verhindert ist.Within the storage container 3, a largely loose inner bag 4 is arranged, in which the mass to be dispensed is contained. The inner bag 4 may be connected in places in the bottom area of the storage container 3 or along a line to the ground, so that an everting of the inner bag is prevented.

Der Innenbeutel 4 ist weiter im Halsbereich 5 des Vorratsbehältnisses 3 mit diesem befestigt.The inner bag 4 is further secured in the neck region 5 of the storage container 3 with this.

Zugleich kann hier eine Befestigung aufgrund der Klemmung durch den Pumpenkopf 2 erreicht sein. Der Pumpenkopf 2 ist modulartig ausgebildet und kann von oben in das Vorratsbehältnis 3 eingesetzt werden. Die Verbindung zwischen dem Vorratsbehältnis 3 und dem Pumpenkopf 2 ist mittels eines Adapterteiles 6 erreicht, das aufgrund der runden Ausführung des Pumpenkopfes 2 , jedenfalls des Teleskopaußenteils 15 und des Teleskopinnenteils 10, in den Querschnitten gemäß Fig. 1 bzw. Fig. 2 sich unterschiedlich darstellt. In der Längsachse a-a des oval gestalteten Vorratsbehältnisses 3, siehe Schnittdarstellung gemäß Fig. 1, bildet das Adapterteil 6 einen Absatzbereich 16 aus, der in der Querachse b-b, vgl. Fig. 2, nur noch als einzelne Wandung 17 gegeben ist. Entsprechend ist die Rast- bzw. Klemmverbindung zwischen dem Adapterteil 6 und dem Vorratsbehältnis 3 teilweise, im Bereich der Stufenfläche 16, durch eine gesonderte Rastwandung 18 gegeben, die mit dem zugeordneten, zum Rasten ausgebildeten Halsbereich 5 des Vorratsbehältnisses 3 zusammenwirkt. Im Bereich der Querachse b-b übernimmt diese Zusammenwirkung jedoch die Wandung 17, die insofern in diesem Bereich auch einen eigenen Rastwulst 19, vgl. Fig. 2 und 5, ausbildet.At the same time an attachment due to the clamping can be achieved by the pump head 2 here. The pump head 2 has a modular design and can be inserted from above into the storage container 3. The connection between the storage container 3 and the pump head 2 is achieved by means of an adapter part 6, due to the round design of the pump head 2, in any case of the telescope outer part 15 and the telescope inner part 10, in the cross-sections Fig. 1 respectively. Fig. 2 presents itself differently. In the longitudinal axis aa of the oval-shaped storage container 3, see sectional view according to Fig. 1 , the adapter part 6 forms a heel region 16, which in the transverse axis bb, cf. Fig. 2 , is given only as a single wall 17. Accordingly, the latching or clamping connection between the adapter part 6 and the storage container 3 is partially, in the region of the step surface 16, given by a separate detent wall 18, with the associated, designed for latching neck area 5 of the storage container 3 cooperates. In the area of the transverse axis bb, however, this interaction takes over the wall 17, which in this area also has its own locking bead 19, cf. Fig. 2 and 5 , trains.

Der Pumpenkopf 2 ist darüber hinaus von einer Überkappe 7 überfangen.The pump head 2 is also covered by an overcap 7.

Wie sich in weiterer Einzelheit aus den Fig. 4 bis 6 ergibt, weist der Pumpenkopf 2 eine Pumpkammer 8 auf, die aus einem flexiblen Pumpenbalg 20 besteht. Der Pumpenbalg 20 ist im Vertikalquerschnitt zickzackförmig verlaufend ausgebildet, dagegen, wie sich aus einem Horizontalquerschnitt ergeben würde, grundsätzlich kreisförmig gebildet. Es handelt sich auch hierbei bevorzugt um ein Kunststoffspritzteil, aus einem entsprechend weichelastischen Kunststoff. In dem Pumpenbalg integriert ausgebildet ist fußseitig ein Teil 9 eines Einlassventiles, dessen gegenüberliegendes Zusammenwirkungsteil in das Teleskopaußenteil 15 des Pumpenkopfes 2 integriert ist. Weiter weist der Pumpenkopf 2 ein Teleskopinnenteil 10 auf, wobei beide außerhalb der Pumpkammer 8 miteinander teleskopieren.As in more detail from the 4 to 6 results, the pump head 2 on a pumping chamber 8, which consists of a flexible pumping bellows 20. The pump bellows 20 is designed to extend in a vertical cross-section zigzag, however, as it would result from a horizontal cross-section, basically formed circular. This is also preferably a plastic injection molded part, made of a correspondingly flexible plastic. Is formed integrated in the pump bellows foot part 9 of an inlet valve, the opposite interaction part is integrated into the telescopic outer part 15 of the pump head 2. Next, the pump head 2 on a telescope inner part 10, both telescoping outside the pumping chamber 8 with each other.

Das Teleskopaußenteil 15 bildet in weiterer Einzelheit einen umlaufenden Stützsockel 21 aus, in welchem der Fußbereich des Pumpenbalgs 20 unterseitig einsitzt. Und zwar in Zusammenwirkung mit einer Innenfläche des Stützsockels 21. In diesem Bereich ist der Pumpenbalg 20 auch nicht mehr balgartig ausgebildet, sondern mit einer Massivwandung, die im Überfangbereich des Stützsockels 21 einen verstärkten dreieckförmigen Querschnitt aufweist.The telescope outer part 15 forms in a further detail a circumferential support base 21, in which the foot region of the pump bellows 20 is seated on the underside. In cooperation with an inner surface of the support base 21. In this area, the pump bellows 20 are no longer bellows-like, but with a solid wall, which has a reinforced triangular cross-section in the overlapping region of the support base 21.

Mittels gesonderter Stützfüße 22, 23 sitzt der Pumpenbalg unterseitig auf dem Boden 24 des Teleskopaußenteils 15 - innenseitig - auf. Der Boden 24 bildet eine zentrale Öffnung 25, als Zuführkanal zum Einlassventil 26, gegenüber dem Boden 24 zum Inneren der Pumpkammer 8 hin eingezogen. Mündungsseitig läuft der Kanal in zwei konzentrische Ringe 27, 28 aus, von welchen die Außenfläche des Rings 27 zur dichtenden Zusammenwirkung mit einer Lippe 29 des Brückenteils 9 des Einlassventils 26 ausgebildet ist.By means of separate support legs 22, 23 of the pump bellows sits on the underside of the bottom 24 of the telescope outer part 15 - on the inside - on. The bottom 24 forms a central opening 25, fed as a feed channel to the inlet valve 26, opposite the bottom 24 to the interior of the pumping chamber 8 through. mouth side the channel extends into two concentric rings 27, 28, of which the outer surface of the ring 27 is designed to sealingly cooperate with a lip 29 of the bridge part 9 of the inlet valve 26.

Oben im Pumpenkopf 2 befindet sich das auch aus einem weichelastischen Kunststoffteil gebildete Auslassventil 11. Dieses sitzt in einem Sitzteil 12 ein, das zusammenwirkend mit einem Gegenhalterteil 13 durch Einklemmung einen oberen Kragen 14 des Balges bzw. der Pumpkammerwandung haltert.This is seated in a seat part 12, which cooperatively supports with a counterpart part 13 by clamping an upper collar 14 of the bellows or the pumping chamber wall.

Das Gegenhalterteil 13 weist einen in den Faltenbereich der Pumpkammer 8 hineinragenden Unterabschnitt 31 auf, der grundsätzlich zylinderartig gebildet ist, an seinem unteren Ende auch noch eine in Form einer inneren Doppelwandung, über einen Teilbereich der Länge des Abschnittes 31 ausgebildeten Führungsabschnitt 30 aufweist, in welchem das Sitzteil 12 geführt ist. Das Sitzteil 12 schließt unterseitig etwa mit dem unteren Ende des Führungsteils 30 ab.The counterpart part 13 has a subsection 31 protruding into the fold region of the pumping chamber 8, which is basically formed like a cylinder, at its lower end also has a guide section 30 formed in the form of an inner double wall, over a partial region of the length of the section 31, in which the seat part 12 is guided. The seat part 12 closes on the underside approximately with the lower end of the guide member 30 from.

Claims (9)

  1. A dispenser (1) for discharge of liquid to pasty materials, comprising a pump head (2) and a pump chamber (8) formed in the pump head, the pump chamber having a pump chamber wall (20) and an inlet valve (26) and an outlet valve (11), and the dispenser comprising a storage container (3), a storage bag (4) which can be reduced in volume for emptying purposes being contained in the storage container (3), the pump chamber wall (20) of the pump head (2) being formed to be flexible, characterised in that the internal bag is connected, in the base region of the storage container (3), to the base, pointwise or along a line, so that turning inside-out of the internal bag (4) is prevented, and in that the internal bag (4) is secured to the storage container (3) in the neck region of the storage container.
  2. A dispenser according to Claim 1, characterised in that the pump chamber wall (20) is formed by a pump chamber bellows of plastics material.
  3. A dispenser according to either of Claims 1 and 2, characterised in that the pump chamber wall (20) replaces, on account of its elastic restoring force, a return spring which would otherwise be required.
  4. A dispenser according to any of Claims 1 to 3, characterised in that the inlet valve (26) is biased into its closed position.
  5. A dispenser according to any of Claims 1 to 4, characterised in that the inlet valve (26) is formed from an elastic plastics material.
  6. A dispenser according to any of Claims 1 to 5, characterised in that the outlet valve (11) is biased into its closed position.
  7. A dispenser according to any of Claims 1 to 6, characterised in that the outlet valve (11) is formed of a plastics material having elastically restoring properties.
  8. A dispenser according to any of Claims 5 to 7, characterised in that the inlet valve (26) has a bridge portion (9) of soft plastics material, the bridge portion being biased into its closed position.
  9. A dispenser according to Claim 8, characterised in that the bridge portion (9) of soft plastics material is formed integrally with the material of the pump chamber wall (20).
EP06743302A 2005-04-18 2006-04-13 Dispenser for discharging liquid to pasty materials Not-in-force EP1871539B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202005006230 2005-04-18
DE202005014895U DE202005014895U1 (en) 2005-04-18 2005-09-21 Dispenser for liquids and pastes comprises rigid casing containing flexible bag filled with material to be dispensed and pump mounted at top of dispenser consisting of flexible pumping bellows with outlet valve fitted above it
PCT/EP2006/061592 WO2006111506A1 (en) 2005-04-18 2006-04-13 Dispenser for discharging liquid to pasty materials

Publications (2)

Publication Number Publication Date
EP1871539A1 EP1871539A1 (en) 2008-01-02
EP1871539B1 true EP1871539B1 (en) 2010-02-24

Family

ID=36974016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06743302A Not-in-force EP1871539B1 (en) 2005-04-18 2006-04-13 Dispenser for discharging liquid to pasty materials

Country Status (8)

Country Link
US (1) US20090050651A1 (en)
EP (1) EP1871539B1 (en)
JP (1) JP2008537047A (en)
KR (1) KR20080009108A (en)
AT (1) ATE458553T1 (en)
DE (2) DE202005014895U1 (en)
RU (1) RU2007142390A (en)
WO (1) WO2006111506A1 (en)

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WO2016150889A1 (en) 2015-03-23 2016-09-29 Megaplast Gmbh Dispenser for discharging liquid to pasty masses
DE102015106414A1 (en) 2015-04-27 2016-10-27 Megaplast Gmbh Dispenser for dispensing liquid to pasty masses

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KR102282327B1 (en) * 2020-06-18 2021-07-27 (주)성진코스메틱스 Case for liquid state cosmetics and pumping apparatus for the same

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WO2016150889A1 (en) 2015-03-23 2016-09-29 Megaplast Gmbh Dispenser for discharging liquid to pasty masses
DE102015104288A1 (en) 2015-03-23 2016-09-29 Megaplast Gmbh Dispenser for dispensing liquid to pasty masses
CN107428442A (en) * 2015-03-23 2017-12-01 阿普塔菲林根有限责任公司 For exporting liquid to the distributor of plaster material
DE102015106414A1 (en) 2015-04-27 2016-10-27 Megaplast Gmbh Dispenser for dispensing liquid to pasty masses

Also Published As

Publication number Publication date
JP2008537047A (en) 2008-09-11
DE502006006245D1 (en) 2010-04-08
ATE458553T1 (en) 2010-03-15
DE202005014895U1 (en) 2006-08-24
KR20080009108A (en) 2008-01-24
EP1871539A1 (en) 2008-01-02
RU2007142390A (en) 2009-05-27
US20090050651A1 (en) 2009-02-26
WO2006111506A1 (en) 2006-10-26

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