EP2624964B1 - Pump dispenser comprising flexible valves - Google Patents

Pump dispenser comprising flexible valves Download PDF

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Publication number
EP2624964B1
EP2624964B1 EP11775749.2A EP11775749A EP2624964B1 EP 2624964 B1 EP2624964 B1 EP 2624964B1 EP 11775749 A EP11775749 A EP 11775749A EP 2624964 B1 EP2624964 B1 EP 2624964B1
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EP
European Patent Office
Prior art keywords
valve body
cup
pot
receiving
pump chamber
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
EP11775749.2A
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German (de)
French (fr)
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EP2624964A1 (en
Inventor
Martin Presche
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.)
RPC Bramlage GmbH
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RPC Bramlage GmbH
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Publication date
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Publication of EP2624964A1 publication Critical patent/EP2624964A1/en
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Publication of EP2624964B1 publication Critical patent/EP2624964B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • 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
    • B05B11/1001—Piston pumps
    • 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

Definitions

  • the invention relates to a pumping chamber for a dispenser according to the features of the preamble of claim 1.
  • valve body is provided, for example, in the aforementioned dispenser that a flexible discs placed on a pin and the pin then holds by riveting the disc rivet.
  • the disc covers in its radially outer region passage openings in a pump chamber floor.
  • valve body has a cross-section obliquely extending valve body wall, which rests on a free peripheral edge of the valve body on the receiving body inside.
  • the invention is concerned with the object to provide a pumping chamber for a dispenser with a valve body, which is also inexpensive to manufacture in terms of the valve body, in a function as they have the valve body in the prior art.
  • This object is achieved in a pumping chamber in which the cup-shaped valve body rests in its given by the pot wall pot or cup area with its outer surface on an inner surface of the pot. It is realized according to a flat system in the pot or cup area. This design is also favorable, for example, for the production of the valve or the pumping chamber in the two-component injection molding process.
  • the invention goes the way to the formation of a Valve two such pot-like elements to nest together, wherein one of the cup-like elements elastic, at least in a substantial portion of elastic, is formed, the other element, however, forms a counter system.
  • the other element is in this respect designed as a hard plastic part. In principle, however, the other element could be a soft plastic part.
  • the inner cup-like element, at least in a fluid passage area is elastic.
  • valve body formation or interaction of the valve body with a receiving part can be designed in the same way for an inlet and an outlet valve of the pumping chamber.
  • the parts of the pumping chamber are preferably all plastic parts. In particular produced by plastic injection molding plastic parts. As materials are, for example, for a hard plastic PP and PE in question, for a soft plastic TPE.
  • valve body is plug-connected to the pot.
  • a latching pin may be formed on the valve body and / or the pot, which engages in a corresponding latching opening of the other part.
  • valve body is connected to the receiving pot in the two-component injection method.
  • This makes it possible to produce the corresponding part of the pumping chamber at the same time manufacturing technology favorable as a combined plastic injection molded part.
  • the required unbondedness of the elastically deflectable adjacent to an inner surface of the pot pot wall of the valve body can be achieved, for example, that the parts are produced in a so-called assembly injection molding.
  • assembly injection molding in this case, in a first method step, first one of the two parts and in a subsequent method step, preferably in the same injection mold, merely by releasing a further cavity or a further mold space, the other component produced in each case by injection molding.
  • the component produced in the first method step thereby defines the mold space used for the injection molding of the second component at least partially, in particular in the region in which the parts rest against one another.
  • the sprayed materials are chosen or adjusted so that they do not weld together in the course of spraying.
  • the necessary cohesion of the parts can be achieved by one or more rear handles, for example. According to the mentioned locking pin training.
  • valve pot has a receiving pot passing through section.
  • This section can be, for example, an already addressed locking pin.
  • the penetrating portion of the valve pot is rooted in the pot bottom of the valve pot. For example, it can protrude only on the underside of the pot bottom of the valve pot.
  • the penetrating portion passes through the bottom of the pot.
  • the pumping chamber has two valves with one or more of the features described above.
  • a dispenser 1 which has a pump head 3 which is enclosed by a cap 2.
  • the pump head 3 is supported by a spring 4 on the bottom 5 of a receiving part 6.
  • the pump head 3 further has an output line 7, which cooperates by means of a piston formation 8 in a likewise rooted in the bottom 5 cylinder body 9.
  • Below the Kolbenausformung 8 of the pump head 3 forms a pumping chamber 10 in cooperation with the bottom 5 of the receiving part 6.
  • An inlet valve 11 of the pumping chamber 10 is formed in the bottom 5, in the embodiment in a relation to the surrounding bottom surface to a storage space 12 towards lowered area.
  • the outlet valve 13 is formed at the beginning of the line 7 in the pump head 3.
  • the storage space 12 is closed on the underside by a follower piston 14. Due to the two valves of the pumping chamber 10, the pumping chamber is self-priming. For example, the follower piston 14 requires no blocking means for support on an inner wall 15 of the dispenser container 16 forming the reservoir.
  • both the inlet valve 11 and the outlet valve 13 have a cup-shaped valve body 17 and 18, respectively, which seats in a receiving pot 19 or 20 formed from hard plastic, representing the receiving body.
  • the valve body 18 and 17 are designed substantially rotationally symmetrical to a central axis A.
  • the valve body 18 of the outlet valve associated with the formed in the pot 19 as a fluid passage area fluid passage 21 foot area on the side of a deviation from the rotational symmetry.
  • the fluid passage 21 is designed window-like through to the lowest area (see below: counter-holder 26). In particular, also preferred with extension of the window above and a rejuvenation below.
  • the lowermost region of the valve body 18 is cut off, as it were, in the covering area with respect to the window opening and the wall having it.
  • the inlet valve 11 may also be formed here at the same time.
  • the inlet valve 11 closes due to the overpressure (or is already closed). Due to the same overpressure, pasty mass located in the pumping chamber 12 presses the cup wall 31, for example the valve body 18 in any case in the region of the fluid passage 21 inward, see dashed line, so that mass can enter the discharge line 7 and can escape through an opening 22 for use.
  • valve body 17 or 18 is produced with the receiving pot 19 and 20 in the two-component injection molding process. It can further be seen that a pot bottom 24 is formed on the underside with an extension 25 which passes centrally in the embodiment with respect to the pot, the bottom of the pot and on the underside of the pot in an externally applied to the surface of the pot counter-holder 26 passes.
  • This counter-holder is formed over a part, preferably the entire vertically projected outer surface of the receiving pot.
  • the pot wall 31 of the valve body extends in the embodiment at right angles to each of the pot bottom 24.
  • the pot wall 31 may also, for example, V-shaped - based on a cross-sectional view - open, so including an acute angle with a vertical.
  • FIGS. 2a and 2b Variations are shown in which a latching connection between the receiving pot 19 and 20 and the valve body 17,18 is formed for this purpose, in detail in the embodiment of FIG. 2a the valve body 17,18 a bottom side of the pot bottom 24 outgoing latching pin 27 which passes through a latching opening 28 in the associated bottom of the pot 20 receiving.
  • the valve body 17 or 18 can be latched by simply plugging it from above into the pot 20 with this.
  • the design can also be formed immediately by injection molding, for example, by the aforementioned assembly spraying.
  • a latching pin 29 is realized, the material unit, one piece, is formed with the pot 20.
  • the locking pin 29 in this case passes through a latching opening 30 in the bottom of the valve body 17 or 18th
  • the locking pins 27 and 29 and the corresponding latching openings are each formed centrally relative to a free diameter of the bottom of the valve body 17 and 18 respectively ⁇ B> LIST OF REFERENCES ⁇ / b> 1 donor 26 against mount 2 cap 27 latching pin 3 pump head 28 latching opening 4 feather 29 latching pin 5 ground 30 latching opening 6 receiving part 31 pot wall 7 output line 8th Kolbenausformung A central axis 9 cylinder body 10 pumping chamber 11 intake valve 12 pantry 13 outlet valve 14 follower piston 15 inner wall 16 dispensing container 17 valve body 18 valve body 19 pot 20 pot 21 Fluid passage 22 opening 23 Fluid passage 24 pot base 25 extension

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

Die Erfindung betrifft eine Pumpkammer für einen Spender nach den Merkmalen des Oberbegriffs des Anspruches 1.The invention relates to a pumping chamber for a dispenser according to the features of the preamble of claim 1.

Derartige Pumpkammern bzw. Spender mit solchen Pumpkammern sind bereits in vielfacher Hinsicht bekannt geworden. Es wird hierzu beispielsweise auf die WO 2007/068564 A1 verwiesen. Hinsichtlich der Ventilkörper ist bei dem genannten Spender beispielsweise vorgesehen, dass eine flexible Scheiben auf einen Zapfen aufgelegt und der Zapfen dann durch Umformung nietartig die Scheibe festhält. Die Scheibe überdeckt in ihrem radial äußeren Bereich Durchtrittsöffnungen in einem Pumpkammerboden.Such pumping chambers or dispensers with such pumping chambers have already become known in many respects. It is for this purpose, for example, on the WO 2007/068564 A1 directed. With regard to the valve body is provided, for example, in the aforementioned dispenser that a flexible discs placed on a pin and the pin then holds by riveting the disc rivet. The disc covers in its radially outer region passage openings in a pump chamber floor.

Auch die EP 2 228139 A1 ist eine Pumpkammer für einen Spender bekannt, bei welcher der Ventilkörper eine im Querschnitt schrägverlaufende Ventilkörperwandung aufweist, die an einer freien Randkante des Ventilkörpers an dem Aufnahmekörper innenseitig anliegt.Also the EP 2 228139 A1 a pumping chamber for a dispenser is known in which the valve body has a cross-section obliquely extending valve body wall, which rests on a free peripheral edge of the valve body on the receiving body inside.

Ausgehend hiervon beschäftigt sich die Erfindung mit der Aufgabe, eine Pumpkammer für einen Spender mit einem Ventilkörper anzugeben, die zugleich hinsichtlich des Ventilkörpers günstig herstellbar ist, bei einer Funktion, wie sie auch die Ventilkörper im Stand der Technik aufweisen.Proceeding from this, the invention is concerned with the object to provide a pumping chamber for a dispenser with a valve body, which is also inexpensive to manufacture in terms of the valve body, in a function as they have the valve body in the prior art.

Diese Aufgabe ist bei einer Pumpkammer gelöst, bei welcher der topfförmig ausgebildete Ventilkörper in seinem durch die Topfwandung gegebenen Topf- oder Kelchbereich mit seiner Außenfläche an einer Innenfläche des Aufnahmetopfes anliegt. Es ist entsprechend eine flächige Anlage im Bereich des Topf- oder Kelchbereiches verwirklicht. Diese Gestaltung ist auch beispielsweise günstig zur Herstellung des Ventils bzw. der Pumpkammer im Zweikomponentenspritzverfahren. Die Erfindung geht den Weg, zur Ausbildung eines Ventils zwei derartige topfartige Elemente ineinander zu schachteln, wobei eines der topfartigen Elemente elastisch, jedenfalls in einem wesentlichen Teilbereich elastisch, ausgebildet ist, das andere Element dagegen eine Gegenanlage bildet. Bevorzugt ist das andere Element insoweit als Hartkunststoffteil ausgebildet. Grundsätzlich könnte aber auch das andere Element ein Weichkunststoffteil sein. Bevorzugt ist jedenfalls, dass das innere topfartige Element, zumindest in einem Fluid-Durchlassbereich, elastisch ausgebildet ist.This object is achieved in a pumping chamber in which the cup-shaped valve body rests in its given by the pot wall pot or cup area with its outer surface on an inner surface of the pot. It is realized according to a flat system in the pot or cup area. This design is also favorable, for example, for the production of the valve or the pumping chamber in the two-component injection molding process. The invention goes the way to the formation of a Valve two such pot-like elements to nest together, wherein one of the cup-like elements elastic, at least in a substantial portion of elastic, is formed, the other element, however, forms a counter system. Preferably, the other element is in this respect designed as a hard plastic part. In principle, however, the other element could be a soft plastic part. In any case, it is preferred that the inner cup-like element, at least in a fluid passage area, is elastic.

Eine derartige Ventilkörperausbildung bzw. Zusammenwirkung des Ventilkörpers mit einem Aufnahmeteil kann in gleicher Weise für ein Einlass- wie ein Auslassventil der Pumpkammer ausgebildet sein.Such a valve body formation or interaction of the valve body with a receiving part can be designed in the same way for an inlet and an outlet valve of the pumping chamber.

Die Teile der Pumpkammer sind bevorzugt sämtlich Kunststoffteile. Insbesondere im Kunststoffspritzverfahren hergestellte Kunststoffteile. Als Werkstoffe kommen bspw. für einen Hartkunststoff PP und PE in Frage, für einen Weichkunststoff TPE.The parts of the pumping chamber are preferably all plastic parts. In particular produced by plastic injection molding plastic parts. As materials are, for example, for a hard plastic PP and PE in question, for a soft plastic TPE.

Es ist bevorzugt, dass der Ventilkörper mit dem Aufnahmetopf steckverbunden ist. Beispielsweise kann hierzu an dem Ventilkörper und/oder dem Aufnahmetopf ein Rastzapfen ausgebildet sein, der in eine entsprechende Rastöffnung des anderen Teils eingreift.It is preferred that the valve body is plug-connected to the pot. For example, for this purpose, a latching pin may be formed on the valve body and / or the pot, which engages in a corresponding latching opening of the other part.

Weiterhin kann aber auch eine Ausbildung vorgesehen sein, bei welcher der Ventilkörper mit dem Aufnahmetopf im Zweikomponentenspritzverfahren verbunden ist. Dies ermöglicht es, den entsprechenden Teil der Pumpkammer zugleich fertigungstechnisch günstig als kombiniertes Kunststoffspritzteil herzustellen. Die erforderliche Unverbundenheit der elastisch ausweichbar an einer Innenfläche des Aufnahmetopfes anliegenden Topfwandung des Ventilkörpers kann beispielsweise dadurch erzielt werden, dass die Teile in einem sogenannten Montagespritzgießverfahren hergestellt werden. Hierbei wird in einem ersten Verfahrensschritt zunächst eines der beiden Teile und in einem anschließenden Verfahrensschritt, vorzugsweise in derselben Spritzgießform, lediglich durch Freigabe einer weiteren Kavität bzw. eines weiteren Formraumes, das andere Bauteil jeweils durch Spritzgießen erzeugt. Das im ersten Verfahrensschritt erzeugte Bauteil definiert dabei den für das Spritzgießen des zweiten Bauteils verwendeten Formraum zumindest teilweise insbesondere in dem Bereich, in dem die Teile aneinander anliegen. Hierzu werden die verspritzten Materialien so gewählt bzw. derart eingestellt, dass sie im Zuge des Spritzens nicht miteinander verschweißen. Der nötige Zusammenhalt der Teile kann durch einen oder mehrere Hintergriffe, bspw. entsprechend der erwähnten Rastzapfenausbildung, erreicht sein.Furthermore, however, it is also possible to provide an embodiment in which the valve body is connected to the receiving pot in the two-component injection method. This makes it possible to produce the corresponding part of the pumping chamber at the same time manufacturing technology favorable as a combined plastic injection molded part. The required unbondedness of the elastically deflectable adjacent to an inner surface of the pot pot wall of the valve body can be achieved, for example, that the parts are produced in a so-called assembly injection molding. In this case, in a first method step, first one of the two parts and in a subsequent method step, preferably in the same injection mold, merely by releasing a further cavity or a further mold space, the other component produced in each case by injection molding. The component produced in the first method step thereby defines the mold space used for the injection molding of the second component at least partially, in particular in the region in which the parts rest against one another. For this purpose, the sprayed materials are chosen or adjusted so that they do not weld together in the course of spraying. The necessary cohesion of the parts can be achieved by one or more rear handles, for example. According to the mentioned locking pin training.

Weiterhin ist bevorzugt, dass der Ventiltopf einen den Aufnahmetopf durchsetzenden Abschnitt aufweist. Dieser Abschnitt kann beispielsweise ein schon angesprochener Rastzapfen sein. Bevorzugt ist darüber hinaus, dass der durchsetzende Abschnitt des Ventiltopfes im Topfboden des Ventiltopfes wurzelt. Er kann beispielsweise nur unterseitig aus dem Topfboden des Ventiltopfes hervorragen.Furthermore, it is preferred that the valve pot has a receiving pot passing through section. This section can be, for example, an already addressed locking pin. In addition, it is preferred that the penetrating portion of the valve pot is rooted in the pot bottom of the valve pot. For example, it can protrude only on the underside of the pot bottom of the valve pot.

Weiterhin ist bevorzugt, dass der durchsetzende Abschnitt den Boden des Aufnahmetopfes durchsetzt.Furthermore, it is preferred that the penetrating portion passes through the bottom of the pot.

Auch kann insbesondere vorgesehen sein, dass die Pumpkammer zwei Ventile mit einem oder mehreren der vorbeschriebenen Merkmale aufweist.It can also be provided in particular that the pumping chamber has two valves with one or more of the features described above.

Nachstehend ist die Erfindung weiter anhand der beigefügten Zeichnung erläutert, die aber lediglich ein Ausführungsbeispiel darstellt. Hierbei zeigt:

Fig. 1
einen Spender mit einer Pumpkammer im Querschnitt und
Fig. 2
eine vergrößerte Darstellung der Pumpkammer des Spenders gemäß Fig. 1;
Fig. 2a
eine Variante betreffend die Verbindung des Ventils mit dem Aufnahmetopf; und
Fig.2b
eine weitere Variante der Verbindung des Ventils mit dem Aufnahmetopf.
The invention is further explained below with reference to the accompanying drawing, which, however, represents only one embodiment. Hereby shows:
Fig. 1
a dispenser with a pumping chamber in cross section and
Fig. 2
an enlarged view of the pumping chamber of the dispenser according to Fig. 1 ;
Fig. 2a
a variant relating to the connection of the valve with the pot; and
2b
another variant of the connection of the valve with the pot.

Dargestellt und beschrieben ist zunächst mit Bezug zu Figur 1 ein Spender 1, der einen von einer Kappe 2 überfangenen Pumpkopf 3 aufweist. Der Pumpkopf 3 ist mittels einer Feder 4 an dem Boden 5 eines Aufnahmeteiles 6 abgestützt. Der Pumpkopf 3 weist weiter eine Ausgabeleitung 7 auf, die mittels einer Kolbenausformung 8 in einem ebenfalls in dem Boden 5 wurzelnden Zylinderkörper 9 zusammenwirkt. Unterhalb der Kolbenausformung 8 bildet der Pumpkopf 3 in Zusammenwirkung mit dem Boden 5 des Aufnahmeteils 6 eine Pumpkammer 10.Shown and described is first with reference to FIG. 1 a dispenser 1 which has a pump head 3 which is enclosed by a cap 2. The pump head 3 is supported by a spring 4 on the bottom 5 of a receiving part 6. The pump head 3 further has an output line 7, which cooperates by means of a piston formation 8 in a likewise rooted in the bottom 5 cylinder body 9. Below the Kolbenausformung 8 of the pump head 3 forms a pumping chamber 10 in cooperation with the bottom 5 of the receiving part 6.

Ein Einlassventil 11 der Pumpkammer 10 ist in dem Boden 5 ausgebildet, beim Ausführungsbeispiel in einem gegenüber der umgebenden Bodenfläche zu einem Vorratsraum 12 hin abgesenkten Bereich. Das Auslassventil 13 ist zu Beginn der Leitung 7 in dem Pumpkopf 3 ausgebildet.An inlet valve 11 of the pumping chamber 10 is formed in the bottom 5, in the embodiment in a relation to the surrounding bottom surface to a storage space 12 towards lowered area. The outlet valve 13 is formed at the beginning of the line 7 in the pump head 3.

Der Vorratsraum 12 ist unterseitig durch einen Nachlaufkolben 14 verschlossen. Aufgrund der zwei Ventile der Pumpkammer 10 ist die Pumpkammer selbstansaugend. Der Nachlaufkolben 14 bedarf hierzu beispielsweise keiner Sperrmittel zur Abstützung an einer Innenwand 15 des den Vorratsraum bildenden Spenderbehälters 16.The storage space 12 is closed on the underside by a follower piston 14. Due to the two valves of the pumping chamber 10, the pumping chamber is self-priming. For example, the follower piston 14 requires no blocking means for support on an inner wall 15 of the dispenser container 16 forming the reservoir.

Abweichend hiervon sind auch Pumpkammern mit nur einem Ventil bekannt, wobei dann der Nachlaufkolben sich mittels eines Gesperres an der Innenwand 15 abstützt und so sich nur in Auslassrichtung bewegen kann.Notwithstanding this, pumping chambers with only one valve are known, in which case the follower piston is supported by means of a locking mechanism on the inner wall 15 and thus can only move in the outlet direction.

Mit Bezug zu Figur 2 ist zu erkennen, dass sowohl das Einlassventil 11 wie das Auslassventil 13 einen topfförmigen Ventilkörper 17 bzw. 18 aufweisen, der in einem aus Hartkunststoff gebildeten Aufnahmetopf 19 bzw. 20, den Aufnahmekörper darstellend, einsitzt. Die Ventilkörper 18 bzw. 17 sind im Wesentlichen rotationssymmetrisch zu einer Mittelachse A gestaltet. Der Ventilkörper 18 des Auslassventils weist jedoch zugeordnet dem in dem Aufnahmetopf 19 als Fluid-Durchlassbereich ausgebildeten Fluiddurchlass 21 fußbereichsseitig eine Abweichung von der Rotationssymmetrie auf. Der Fluiddurchlass 21 ist bis in den untersten Bereich (siehe nachstehend: Gegenhalterung 26) fensterartig durchgehend gestaltet. Im Einzelnen bevorzugt auch mit Erweiterung des Fensters oben und einer Verjüngung unten. Zufolge der durchgehenden Gestaltung ist der unterste Bereich des Ventilkörpers 18 gleichsam im Überdeckungsbereich zu der Fensteröffnung und der diese aufweisenden Wandung abgeschnitten. Das Einlassventil 11 kann auch hier zugleich ausgebildet sein.In reference to FIG. 2 It can be seen that both the inlet valve 11 and the outlet valve 13 have a cup-shaped valve body 17 and 18, respectively, which seats in a receiving pot 19 or 20 formed from hard plastic, representing the receiving body. The valve body 18 and 17 are designed substantially rotationally symmetrical to a central axis A. However, the valve body 18 of the outlet valve associated with the formed in the pot 19 as a fluid passage area fluid passage 21 foot area on the side of a deviation from the rotational symmetry. The fluid passage 21 is designed window-like through to the lowest area (see below: counter-holder 26). In particular, also preferred with extension of the window above and a rejuvenation below. As a result of the continuous configuration, the lowermost region of the valve body 18 is cut off, as it were, in the covering area with respect to the window opening and the wall having it. The inlet valve 11 may also be formed here at the same time.

Der Topf- oder Kelchbereich des Ventilkörpers 17 bzw. 18, siehe Topfwandung 31, liegt mit seiner Außenfläche an einer Innenfläche des Aufnahmetopfes 19 bzw. 20 an.The pot or cup region of the valve body 17 or 18, see pot wall 31, lies with its outer surface on an inner surface of the pot 19 and 20 at.

Wenn nun der Spenderkopf 3 nach Entfernen der Kappe 2 von einem Benutzer nach unten gedrückt wird, schließt aufgrund des Überdruckes (bzw. ist bereits geschlossen) das Einlassventil 11. Aufgrund des gleichen Überdruckes drückt in der Pumpkammer 12 beispielsweise befindliche pastöse Masse aber die Topfwandung 31 des Ventilkörpers 18 jedenfalls im Bereich des Fluiddurchlasses 21 nach innen, siehe gestrichelte Darstellung, so dass Masse in die Ausgabeleitung 7 eintreten kann und durch eine Öffnung 22 zur Benutzung austreten kann.If now the dispenser head 3 is pressed down by a user after removal of the cap 2, the inlet valve 11 closes due to the overpressure (or is already closed). Due to the same overpressure, pasty mass located in the pumping chamber 12 presses the cup wall 31, for example the valve body 18 in any case in the region of the fluid passage 21 inward, see dashed line, so that mass can enter the discharge line 7 and can escape through an opening 22 for use.

Nach Aufheben des Druckes auf den Spenderkopf 3 stellt die Feder 4 den Spenderkopf in die Ausgangsstellung gemäß Figur 1 zurück. Hierbei entsteht in der Pumpkammer 12 ein Unterdruck, der einerseits für ein zuverlässiges Verschließen des Auslassventils 13 sorgt, andererseits aber in prinzipiell gleicher Wirkungsweise wie vorbeschrieben bewirkt, dass die Topfwandung 31 des Einlassventiles 11 sich jedenfalls im Bereich des in gleicher Weise einen Fluid-Durchlassbereich bildenden Fluiddurchlasses 23 flexibel nach innen bewegt, siehe hierzu auch die strichlinierte Darstellung in Figur 2 der Topfwandung 31 des Ventilkörpers 17, und so Masse in die Pumpkammer 12 einströmt.After releasing the pressure on the dispenser head 3, the spring 4 sets the dispenser head in the starting position FIG. 1 back. This results in the pumping chamber 12, a negative pressure, on the one hand ensures a reliable closing of the outlet valve 13, but on the other hand in principle the same mode of action as described above causes the pot wall 31 of the inlet valve 11 at least in the region of forming a fluid passage area in the same way Fluid passage 23 flexibly moved inward, see also the dashed line in FIG. 2 the pot wall 31 of the valve body 17, and so mass flows into the pumping chamber 12.

Beim Ausführungsbeispiel ist der Ventilkörper 17 bzw. 18 mit dem Aufnahmetopf 19 bzw. 20 im Zweikomponentenspritzverfahren hergestellt. Es ist weiter zu erkennen, dass ein Topfboden 24 unterseitig mit einem Fortsatz 25 gebildet ist, der beim Ausführungsbeispiel zentral bezüglich des Aufnahmetopfes, den Boden des Aufnahmetopfes durchsetzt und unterseitig des Aufnahmetopfes in eine außenseitig an der Fläche des Aufnahmetopfes anliegende Gegenhalterung 26 übergeht. Diese Gegenhalterung ist über einen Teil, bevorzugt die gesamte vertikal projizierte Außenfläche des Aufnahmetopfes ausgebildet.In the exemplary embodiment, the valve body 17 or 18 is produced with the receiving pot 19 and 20 in the two-component injection molding process. It can further be seen that a pot bottom 24 is formed on the underside with an extension 25 which passes centrally in the embodiment with respect to the pot, the bottom of the pot and on the underside of the pot in an externally applied to the surface of the pot counter-holder 26 passes. This counter-holder is formed over a part, preferably the entire vertically projected outer surface of the receiving pot.

Die Topfwandung 31 des Ventilkörpers erstreckt sich beim Ausführungsbeispiel rechtwinklig zu jeweils dem Topfboden 24. Die Topfwandung 31 kann sich auch bspw. V-förmig - bezogen auf eine Querschnittsdarstellung - öffnend erstrecken, also unter Einschluss eines spitzen Winkels mit einer Vertikalen.The pot wall 31 of the valve body extends in the embodiment at right angles to each of the pot bottom 24. The pot wall 31 may Also, for example, V-shaped - based on a cross-sectional view - open, so including an acute angle with a vertical.

Bezüglich der Figuren 2a und 2b sind Varianten dargestellt, bei welchen eine Rastverbindung zwischen dem Aufnahmetopf 19 bzw. 20 und dem Ventilkörper 17,18 ausgebildet ist Hierzu weist in Einzelheit bei der Ausführungsform der Figur 2a der Ventilkörper 17,18 einen unterseitig von dem Topfboden 24 ausgehenden Rastzapfen 27 auf, der eine Rastöffnung 28 in dem zugeordneten Boden des Aufnahmetopfes 20 durchsetzt. Der Ventilkörper 17 bzw. 18 kann hierdurch durch einfaches Einstecken von oben in den Aufnahmetopf 20 mit diesem rastverbunden werden. Die Gestaltung kann aber auch sogleich etwa durch das erwähnte Montagespritzen spritztechnisch ausgebildet sein.Regarding the FIGS. 2a and 2b Variations are shown in which a latching connection between the receiving pot 19 and 20 and the valve body 17,18 is formed for this purpose, in detail in the embodiment of FIG. 2a the valve body 17,18 a bottom side of the pot bottom 24 outgoing latching pin 27 which passes through a latching opening 28 in the associated bottom of the pot 20 receiving. The valve body 17 or 18 can be latched by simply plugging it from above into the pot 20 with this. The design can also be formed immediately by injection molding, for example, by the aforementioned assembly spraying.

Bei der Ausführungsform der Figur 2b ist ein Rastzapfen 29 verwirklicht, der materialeinheitlich, einstückig, mit dem Aufnahmetopf 20 ausgebildet ist. Der Rastzapfen 29 durchsetzt hierbei eine Rastöffnung 30 in dem Boden des Ventilkörpers 17 bzw. 18.In the embodiment of the FIG. 2b a latching pin 29 is realized, the material unit, one piece, is formed with the pot 20. The locking pin 29 in this case passes through a latching opening 30 in the bottom of the valve body 17 or 18th

Bevorzugt sind die Rastzapfen 27 bzw. 29 und die entsprechenden Rastöffnungen jeweils zentral bezogen auf einen freien Durchmesser des Bodens des Ventilkörpers 17 bzw. 18 ausgebildet Bezugszeichenliste 1 Spender 26 Gegenhalterung 2 Kappe 27 Rastzapfen 3 Pumpkopf 28 Rastöffnung 4 Feder 29 Rastzapfen 5 Boden 30 Rastöffnung 6 Aufnahmeteil 31 Topfwandung 7 Ausgabeleitung 8 Kolbenausformung A Mittelachse 9 Zylinderkörper 10 Pumpkammer 11 Einlassventil 12 Vorratsraum 13 Auslassventil 14 Nachlaufkolben 15 Innenwand 16 Spenderbehälter 17 Ventilkörper 18 Ventilkörper 19 Aufnahmetopf 20 Aufnahmetopf 21 Fluiddurchlass 22 Öffnung 23 Fluiddurchlass 24 Topfboden 25 Fortsatz Preferably, the locking pins 27 and 29 and the corresponding latching openings are each formed centrally relative to a free diameter of the bottom of the valve body 17 and 18 respectively <B> LIST OF REFERENCES </ b> 1 donor 26 against mount 2 cap 27 latching pin 3 pump head 28 latching opening 4 feather 29 latching pin 5 ground 30 latching opening 6 receiving part 31 pot wall 7 output line 8th Kolbenausformung A central axis 9 cylinder body 10 pumping chamber 11 intake valve 12 pantry 13 outlet valve 14 follower piston 15 inner wall 16 dispensing container 17 valve body 18 valve body 19 pot 20 pot 21 Fluid passage 22 opening 23 Fluid passage 24 pot base 25 extension

Claims (7)

  1. Pump chamber (12) for a dispenser (1), for example a dispenser for liquid or pasty substances, comprising a valve body (17, 18), the valve body (17, 18) consisting of a soft plastics material and being received in a receiving body (19, 20) that is formed of a hard plastics material, comprising a cup wall (31) of the valve body that is in contact, in a resiliently flexible manner, with an inner surface (15) of a receiving wall of the receiving body which is formed as a receiving cup (19, 20), a fluid passage (21, 23) also being provided in the receiving wall, characterised in that the cup-shaped valve body (17, 18) is in contact with an inner surface of the receiving cup (19) by its outer surface in its cup-shaped or goblet-shaped region provided by the cup wall (31).
  2. Pump chamber according to claim 1, characterised in that the valve body (17, 18) is connected to the receiving cup (19, 20) in a plug-in manner.
  3. Pump chamber according to any of the preceding claims, characterised in that the valve body (17, 18) is connected to the receiving cup (19, 20) in a two-component injection-moulding process.
  4. Pump chamber according to any of the preceding claims, characterised in that the valve body (17, 18) has a portion that passes through the receiving cup (19, 20).
  5. Pump chamber according to claim 4, characterised in that the portion passing through the receiving cup starts from the cup base (24) of the valve cup.
  6. Pump chamber according to either claim 4 or claim 5, characterised in that the portion passing through the receiving cup passes through the base of the receiving cup.
  7. Pump chamber according to any of the preceding claims, characterised in that the pump chamber has two valves having the features of any of claims 1 to 6.
EP11775749.2A 2010-10-04 2011-10-04 Pump dispenser comprising flexible valves Not-in-force EP2624964B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010008712U DE202010008712U1 (en) 2010-10-04 2010-10-04 pumping chamber
PCT/EP2011/067275 WO2012045718A1 (en) 2010-10-04 2011-10-04 Pump dispenser with flexible valves

Publications (2)

Publication Number Publication Date
EP2624964A1 EP2624964A1 (en) 2013-08-14
EP2624964B1 true EP2624964B1 (en) 2016-11-16

Family

ID=44862956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11775749.2A Not-in-force EP2624964B1 (en) 2010-10-04 2011-10-04 Pump dispenser comprising flexible valves

Country Status (5)

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US (1) US20130266464A1 (en)
EP (1) EP2624964B1 (en)
CN (1) CN103328109B (en)
DE (1) DE202010008712U1 (en)
WO (1) WO2012045718A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014200155A1 (en) * 2014-01-08 2015-07-09 Aptar Radolfzell Gmbh Pressure actuated valve and fluid dispenser with such a valve
WO2018014929A1 (en) * 2016-07-18 2018-01-25 Rpc Bramlage Gmbh Dispenser for liquid to pasty compositions
CN109466874A (en) * 2018-12-05 2019-03-15 上海升村包装材料有限公司 A kind of spray bottle cap

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Publication number Priority date Publication date Assignee Title
US2912999A (en) * 1955-07-18 1959-11-17 Ronald C Kersh Fluid check valve
DE1259203B (en) * 1963-11-30 1968-01-18 Roder Gottfried Valve for small pumps made of plastic parts
WO1985005572A1 (en) * 1984-06-01 1985-12-19 Bundschuh Robert L Pump dispenser with slidable trigger
FR2726810B1 (en) * 1994-11-10 1997-01-31 Soc D Promotion Rech Et Innova MANUALLY CONTROLLED DOSING PUMP FOR BOTTLE WITH DEFORMABLE ENVELOPE
JPH1017045A (en) * 1996-07-04 1998-01-20 Kao Corp Check valve
US6082588A (en) * 1997-01-10 2000-07-04 Lever Brothers Company, Division Of Conopco, Inc. Dual compartment package and pumps
FR2773355B1 (en) * 1998-01-08 2000-03-17 Oreal PACKAGING AND DISPENSING DEVICE COMPRISING A VACUUM FILLED TANK AND MANUFACTURING METHOD
US6446840B2 (en) * 2000-05-18 2002-09-10 Ophardt Product Kg Apparatus for making and dispensing foam
FR2813863B1 (en) * 2000-09-08 2003-03-21 Rexam Sofab LIQUID PRODUCT DISTRIBUTOR
US7032783B1 (en) * 2002-05-14 2006-04-25 Continentalafa Dispensing Company Pump dispenser for liquid products
US6695176B1 (en) * 2002-08-08 2004-02-24 Saint-Gobain Calmar Inc. Pump dispenser having an improved discharge valve
DE102006013789A1 (en) 2005-12-16 2007-06-28 Rpc Bramlage Gmbh Dispensers for liquid and / or pasty masses
FR2900646B1 (en) * 2006-05-04 2010-12-31 Valois Sas FLUID PRODUCT DISPENSING DEVICE AND METHOD FOR MANUFACTURING MOBILE FLAP DEVICE
CA2567671C (en) * 2006-11-09 2013-12-24 Gotohti.Com Inc. Vacuum switch multi reservoir dispenser
CA2657695C (en) * 2009-03-10 2016-08-23 Gotohti.Com Inc. Doubled seal disk for piston pump

Also Published As

Publication number Publication date
EP2624964A1 (en) 2013-08-14
WO2012045718A1 (en) 2012-04-12
US20130266464A1 (en) 2013-10-10
DE202010008712U1 (en) 2012-01-13
CN103328109B (en) 2016-08-17
CN103328109A (en) 2013-09-25

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