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EP1332798B1 - Dispenser for fluid or pasty products - Google Patents

Dispenser for fluid or pasty products Download PDF

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Publication number
EP1332798B1
EP1332798B1 EP03002285A EP03002285A EP1332798B1 EP 1332798 B1 EP1332798 B1 EP 1332798B1 EP 03002285 A EP03002285 A EP 03002285A EP 03002285 A EP03002285 A EP 03002285A EP 1332798 B1 EP1332798 B1 EP 1332798B1
Authority
EP
European Patent Office
Prior art keywords
dispenser
pump
valve
mandrel
neck
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03002285A
Other languages
German (de)
French (fr)
Other versions
EP1332798A2 (en
EP1332798A3 (en
Inventor
Wolfgang Heukamp
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 Wiko GmbH
Original Assignee
RPC Wiko GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RPC Wiko GmbH and Co KG filed Critical RPC Wiko GmbH and Co KG
Publication of EP1332798A2 publication Critical patent/EP1332798A2/en
Publication of EP1332798A3 publication Critical patent/EP1332798A3/en
Application granted granted Critical
Publication of EP1332798B1 publication Critical patent/EP1332798B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0062Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007Outlet 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1028Pumps having a pumping chamber with a deformable wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1066Pump inlet valves
    • B05B11/1067Pump inlet valves actuated by pressure
    • B05B11/1069Pump 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 dispenser for dispensing metered quantities of liquid to pasty products, consisting of a cylindrical bottom open storage container whose lower open end is closed by an axially displaceable piston and a dispenser head arranged on the storage container, which contains a bell-shaped dispenser pump with elastic side walls, which together with the top surface of the storage container and its inlet valve and an outlet valve arranged in the pump neck forms a closed pumping chamber, wherein the outlet valve is made as part of the pump neck with this so in one piece that closes the entire upper through hole of the pump neck with a valve flap by a simple operation is, which rests in the initial position sealing on the pump neck.
  • a dispenser of the type described above is known from EP 0 048 420 B1 known.
  • the dispenser consists of a hollow cylindrical storage container with a lower open end, which is closed by an axially displaceable Nachkolbenkolben.
  • the upper end of the storage container has a top surface with an inlet valve.
  • a dispenser head is arranged with a dispenser head located in the dispenser pump, the pumping chamber input and output side is limited by check valves and is formed with a downstream of the dispenser pump mouthpiece with application opening.
  • the discharge valve Upon release and subsequent release and expansion of the donor pump, the discharge valve is closed and the input valve is opened.
  • the vacuum formed by the expansion of the dispenser pump in the pumping chamber now causes a suction of new product from the storage container through the inlet valve of the top surface, at the same time the Nachschreibkolben or closure moves further towards the top surface. This process can be repeated until the storage container is empty and the Nachschreibkolben has contact with the top surface.
  • the outlet valve is designed as a flapper check valve and has a concave, pivotally connected to the end of the pump neck valve flap, which rests in the closed position dome-shaped on the vertically arranged pump neck.
  • the arranged in the top surface of the container inlet valve consists, as the same applicant in the US 4,394,939 is made closer to this donor, from a circular symmetrical in the top surface with an angle ⁇ (45 ° to 85 °) from the radially extending to the container axis plane, with distance from the container axis extending annular slot as a valve opening, whose surface is the shape of a in Direction of the pump room widening truncated pyramid or funnel has.
  • the valve flap used here is a sealing ring formed with a circular cover ring, which is held on at least three, leading to an axially with respect to the container on the top surface to be fastened hub spokes.
  • the cover ring which is adapted to the inclined position of the annular slot, sealingly abuts only with its sealing lips on the annular slot.
  • a toothpaste dispenser with pump known, consisting of a pump part and a reservoir, which are bolted together.
  • the pump part is formed below with a comparison with the reservoir final, containing valve holes partition.
  • the inlet valve of the pump part is a valve disc which is fastened centrally above the valve bores on the dividing wall and alternately opens and closes the valve bores in accordance with the pump cycles that have been carried out.
  • An exhaust valve does not have the pump part.
  • dispensers are usually no longer refilled after their emptying, but disposed of.
  • the most economical and simple manufacture of the disposable product "dispenser" is of particular importance, in particular for the more complicated construction parts contained in the dispenser, such as, for example, the check valves, whose valve flaps are subjected to mechanical stress and faultless throughout the entire process
  • the check valves are often in hard to reach areas of the dispenser, whereby the attachment of usually riveted valve flaps can often be difficult and costly.
  • a dispenser of the type mentioned above with the characterizing features of claim 1, characterized in that the passage openings of the inlet valve and the exhaust valve closing valve flaps are formed similar and each of a flat elastic disc with a central hole, which are mounted on a protruding axial mandrel of the top surface of the storage container or on a protruding axial mandrel of the pump neck and secured there, and lie in the starting position in a plane sealingly on the through holes of the valves.
  • the bell-shaped as an integral construction element dispenser pump of the dispenser head which is inserted from below into the dispenser head and in the mounted state (on the storage container, the dispenser head is attached) together with the top surface of the storage container forms a pumping chamber is at its upper end to a neck narrowed with circular cross-section.
  • This inside hollow neck of the dispenser pump represents the outlet opening of the pumping chamber and is used by placing a valve flap on its upper end as an outlet valve.
  • the projecting axial mandrel of the pump neck is part of the donor pump or the pump neck and is made in one piece with this, wherein it is connected via webs with the pump neck.
  • the elastic disc such as a rubber disc
  • this is formed with a circumferential groove at the level of the upper edge of the pump neck into which engages the rubber disc when plugging.
  • the rubber disc In the dispensing operation, with the discharge valve open to discharge the product, the rubber disc is cambered with its outer periphery up toward the mouthpiece while the center of the rubber disc remains in its original position through the circumferential groove of the spike. Upon return of the exhaust valve by the negative pressure generated in the pumping chamber, the outer edge returns to its original position and the rubber disc reseals sealingly on the pump neck.
  • the pump neck is made in one piece with a closed cap closing off the top of the neck.
  • this cap is then only partially separated from the pump neck so that the cap remains connected to the pump neck over a remaining unseparated area in the form of a tab. Since the tab is made of the same elastic material as the entire donor pump, the tab now acts as a hinge for the valve flap, the original cap of the pump neck.
  • valve flap is thus reduced to a simple partial separation process on the one-piece by, for example, injection-molded dispenser pump.
  • FIGS. 1-3 showing a dispenser according to the invention.
  • Figures 1 and 2 is in a vertical section (Fig. 1) and in a front view 2 shows a dispenser 1 for dispensing metered quantities of liquid to pasty products with a dispenser pump 10 designed according to the invention.
  • the dispenser 1 consists of a storage container 3 with a lower open end 31 for filling the product to be dispensed. After filling, this open end 31 is then closed by a Nachschkolben 32.
  • the upper end of the storage container 3 is bounded by a cover surface 30 with inlet valve 7.
  • the dispenser head 2 On the storage container 3, the dispenser head 2 is pushed, consisting of the bell-shaped or dome-shaped dispenser pump 10 with an outlet 8 and with a discharge valve 8 downstream dispensing channel 6, mouthpiece 4 with application opening and locking tab 5.
  • the dispenser head 2 is so on the storage container 3 postponed that the bottom open dispenser pump 10 is seated tightly on the top surface of the storage container 3 and is locked with this and between the dispenser pump 10 and the top surface 30, a pumping chamber 18 is formed.
  • a cap 9 On the dispenser head 2, a cap 9 is pushed to protect it.
  • valve flap 20 is formed for example by a rubber disc with a central hole 26, which is pushed onto a central mandrel 11 of the pump neck 12.
  • the dispenser pump 10 of Figure 1 is shown enlarged again.
  • the mandrel 11 has at the level of the upper edge 27 pump neck 12 a circumferential groove 14.
  • the valve flap or here a rubber disc 20 is pushed with its central hole 26, wherein it engages in the groove 14 and sealingly rests on the upper edge 27 and thus the entire upper through hole 15 of the pump neck 12 is covered.
  • FIG. 4 shows a different design of an outlet valve 8.
  • the pump neck 12 is changed in this alternative embodiment.
  • the upper end of the pump neck 12 is smooth and formed with a pivotable valve flap or cap 20 '.
  • the pump neck 12 and the cap 20 ' were made in one piece and then partially separated by a separation process so that the cap 20' is only movably connected to the pump neck 12 via a small unseparated area, a tab 22.
  • the thus movable cap 20 'or valve flap thus represents a particularly simple embodiment of a valve flap, the functionally reliable the pump neck 12 and the passage opening 15' sealingly closes and opens.
  • FIGS. 5 and 6 a dispenser head 2 of a dispenser 1 with a dispenser pump 10 is shown in an enlarged partial section, the outlet valve 8 of which, according to FIG. 4, is not formed with a flat but with a dome-shaped valve flap 20 "which together with the Pump neck 12 was made.
  • Fig. 5 the outlet valve 8 is shown with this - connected only via an unseparated tab 22 with the pump neck 12 - valve flap or cap 20 "in the open position and in Fig. 6 in the closed position.
  • valve flap 33 of the inlet valve 7 is formed with a central hole elastic disc 33, preferably a rubber disc which is attached to a protruding mandrel 34 of the top surface 30, after which the projecting head of the mandrel 34 (via the disc 33) by a thermal Deformation was deformed at its end so that the disc 33 is now permanently attached to this mandrel 34
  • annular groove 36 is formed from a container extending beyond the top surface 30 container extension 35 and the side edge 38 of the top surface 30, in which the lower edge of the side walls 13 are inserted and latched by a latching connection.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Jellies, Jams, And Syrups (AREA)

Abstract

The dispenser for the dosed delivery of fluid or paste-like substances comprises a storage container (3) with its open bottom end closed off by an axially movable piston (32). A dispensing head (2) includes a bell-shaped dispensing pump (10). An outlet valve (8) as part of the pump neck (12) is made in one piece with it so that by a simple operating stage the complete upper through-passage of the pump neck can be closed off by a valve plate (20). The valve plate, which is preferably made of rubber, has a central hole which is fitted over a pin (11) in the pump neck.

Description

Die Erfindung betrifft einen Spender zur Abgabe dosierter Mengen flüssiger bis pastöser Produkte, bestehend aus einem unten offenen zylindrischen Speicherbehälter, dessen unteres offenes Ende durch einen axial verschiebbaren Kolben verschlossen ist und einem auf dem Speicherbehälter angeordneten Spenderkopf, der eine glockenförmige Spenderpumpe mit elastischen Seitenwänden enthält, die gemeinsam mit der Deckfläche des Speicherbehälters und deren Einlassventil und einem im Pumpenhals angeordneten Auslassventil eine geschlossene Pumpkammer ausbildet, wobei das Auslassventil als Teil des Pumpenhalses mit diesem so einstückig gefertigt ist, dass durch einen einfachen Arbeitsschritt die gesamte obere Durchgangsöffnung des Pumpenhalses mit einer Ventilklappe verschließbar ist, die in der Ausgangslage dichtend auf dem Pumpenhals aufliegt.The invention relates to a dispenser for dispensing metered quantities of liquid to pasty products, consisting of a cylindrical bottom open storage container whose lower open end is closed by an axially displaceable piston and a dispenser head arranged on the storage container, which contains a bell-shaped dispenser pump with elastic side walls, which together with the top surface of the storage container and its inlet valve and an outlet valve arranged in the pump neck forms a closed pumping chamber, wherein the outlet valve is made as part of the pump neck with this so in one piece that closes the entire upper through hole of the pump neck with a valve flap by a simple operation is, which rests in the initial position sealing on the pump neck.

Ein Spender der vorstehend beschriebenen Art ist aus der EP 0 048 420 B1 bekannt. Der Spender besteht aus einem hohlzylindrischen Speicherbehälter mit einem unteren offenen Ende, welches durch einen axial verschiebbaren Nachrückkolben verschlossen ist. Das obere Ende des Speicherbehälters besitzt eine Deckfläche mit einem Einlassventil. Auf diesem zylindrischen Speicherbehälter ist ein Spenderkopf angeordnet mit einer im Spenderkopf befindlichen Spenderpumpe, deren Pumpkammer eingangs- und ausgangsseitig durch Rückschlagventile begrenzt ist sowie mit einem der Spenderpumpe nachgeordnetem Mundstück mit Applikationsöffnung ausgebildet ist.A dispenser of the type described above is known from EP 0 048 420 B1 known. The dispenser consists of a hollow cylindrical storage container with a lower open end, which is closed by an axially displaceable Nachkolbenkolben. The upper end of the storage container has a top surface with an inlet valve. On this cylindrical storage container, a dispenser head is arranged with a dispenser head located in the dispenser pump, the pumping chamber input and output side is limited by check valves and is formed with a downstream of the dispenser pump mouthpiece with application opening.

Beim dosierten Austrag des zu spendenden Produktes wird durch einen nach unten gerichteten äußeren Druck auf die Spenderpumpe, wodurch sich diese zusammendrückt, das Auslassventil geöffnet und das Einlassventil geschlossen und das in der Pumpkammer befindliche Produkt über die Applikationsöffnung des Mundstücks heraus gedrückt.When dosed discharge of the product to be dispensed is by a downward external pressure on the donor pump, causing them to compress, the exhaust valve opens and the inlet valve is closed and squeezing out the product in the pumping chamber via the mouthpiece application port.

Beim Loslassen und dem darauffolgenden Entspannen und Ausdehnen der Spenderpumpe wird das Auslassventil geschlossen und das Eingangsventil geöffnet. Der sich durch das Ausdehnen der Spenderpumpe in der Pumpkammer ausbildende Unterdruck bewirkt nun ein Ansaugen von neuem Produkt aus dem Speicherbehälter durch das Einlassventil der Deckfläche, wobei gleichzeitig der Nachrückkolben bzw. Verschluss sich weiter in Richtung zur Deckfläche verschiebt. Dieser Vorgang kann solange wiederholt werden, bis der Speicherbehälter leer und der Nachrückkolben Kontakt mit der Deckfläche hat.Upon release and subsequent release and expansion of the donor pump, the discharge valve is closed and the input valve is opened. The vacuum formed by the expansion of the dispenser pump in the pumping chamber now causes a suction of new product from the storage container through the inlet valve of the top surface, at the same time the Nachrückkolben or closure moves further towards the top surface. This process can be repeated until the storage container is empty and the Nachrückkolben has contact with the top surface.

Das Auslassventil ist als Klappenrückschlagventil ausgebildet und weist eine konkav ausgebildete, schwenkbar mit dem Ende des Pumpenhalses verbundene Ventilklappe auf, die in der Schließstellung domförmig auf dem vertikal angeordneten Pumpenhals aufliegt.The outlet valve is designed as a flapper check valve and has a concave, pivotally connected to the end of the pump neck valve flap, which rests in the closed position dome-shaped on the vertically arranged pump neck.

Das in der Deckfläche des Behälters angeordnete Einlassventil besteht, wie vom gleichen Anmelder in der US 4,394,939 zu diesem Spender näher ausgeführt wird, aus einem in der Deckfläche kreisförmig symmetrisch mit einem Winkel α (45° bis 85°) aus der radial zur Behälterachse verlaufenden Ebene herausgeneigten, mit Abstand zur Behälterachse verlaufenden Ringschlitz als Ventilöffnung, dessen Fläche die Form eines sich in Richtung auf den Pumpenraum erweiternden Pyramidenstumpfes bzw. Trichters aufweist. Als Ventilklappe dient hier ein mit Dichtlippen ausgebildeter kreisförmiger Abdeckring, der an mindestens drei, zu einer axial in Bezug auf den Behälter an der Deckfläche zu befestigenden Nabe führenden Speichen gehalten ist. Der Abdeckring, der der Schräglage des Ringschlitzes angepasst ist, liegt nur mit seinen Dichtlippen auf dem Ringschlitz dichtend an.The arranged in the top surface of the container inlet valve consists, as the same applicant in the US 4,394,939 is made closer to this donor, from a circular symmetrical in the top surface with an angle α (45 ° to 85 °) from the radially extending to the container axis plane, with distance from the container axis extending annular slot as a valve opening, whose surface is the shape of a in Direction of the pump room widening truncated pyramid or funnel has. The valve flap used here is a sealing ring formed with a circular cover ring, which is held on at least three, leading to an axially with respect to the container on the top surface to be fastened hub spokes. The cover ring, which is adapted to the inclined position of the annular slot, sealingly abuts only with its sealing lips on the annular slot.

Aus der DE 44 30 583 A1 ist ein Zahnpasta-Spender mit Pumpe bekannt, bestehend aus einem Pumpteil und einem Vorratsbehälter, die miteinander verschraubt sind. Das Pumpteil ist unten mit einer gegenüber dem Vorratsbehälter abschließenden, Ventilbohrungen enthaltenden Trennwand ausgebildet. Als Einlassventil des Pumpteils dient eine mit Abstand oberhalb der Ventilbohrungen auf der Trennwand mittig befestigte Ventilscheibe, die wechselweise entsprechend den durchgeführten Pumpzyklen die Ventilbohrungen öffnet und verschließt. Ein Auslassventil besitzt das Pumpteil nicht.From the DE 44 30 583 A1 is a toothpaste dispenser with pump known, consisting of a pump part and a reservoir, which are bolted together. The pump part is formed below with a comparison with the reservoir final, containing valve holes partition. The inlet valve of the pump part is a valve disc which is fastened centrally above the valve bores on the dividing wall and alternately opens and closes the valve bores in accordance with the pump cycles that have been carried out. An exhaust valve does not have the pump part.

Gemeinsam bei derartigen Spendern ist, dass sie in der Regel nach ihrer Entleerung nicht mehr neu befüllt, sondern entsorgt werden. Dies hat zur Folge, dass deshalb auf eine möglichst preiswerte und einfache Herstellung des Wegwerfprodukts Spender" ein besonders großer Wert gelegt wird. Dies gilt insbesondere für die im Spender enthaltenen komplizierteren Konstruktionsteile wie beispielsweise für die Rückschlagventile, deren Ventilklappen mechanisch beansprucht und einwandfrei während der gesamten Lebensdauer des Spenders arbeiten sollen. Die Rückschlagventile befinden sich oftmals an schwer zugänglichen Stellen des Spenders, wodurch die Befestigung der meist angenieteten Ventilklappen oft nur schwierig und kostenintensiv durchgeführt werden kann.Common to such dispensers is that they are usually no longer refilled after their emptying, but disposed of. As a result, the most economical and simple manufacture of the disposable product "dispenser" is of particular importance, in particular for the more complicated construction parts contained in the dispenser, such as, for example, the check valves, whose valve flaps are subjected to mechanical stress and faultless throughout the entire process The check valves are often in hard to reach areas of the dispenser, whereby the attachment of usually riveted valve flaps can often be difficult and costly.

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, bei Spendern der genannten Art die Ein- und Auslassventile möglichst einfach zu gestalten und montieren zu können.Based on this prior art, it is an object of the invention to make the intake and exhaust valves as simple as possible with dispensers of the type mentioned and assemble.

Die gestellte Aufgabe wird bei einem Spender der eingangs genannten Art mit den kennzeichnenden Merkmalen des Anspruchs 1 dadurch gelöst, dass die die Durchgangsöffnungen des Einlassventils und des Auslassventils verschließenden Ventilklappen gleichartig ausgebildet sind und jeweils aus einer flachen elastischen Scheibe mit zentralem Loch bestehen, die auf einem vorstehenden axialen Dorn der Deckfläche des Speicherbehälters bzw. auf einem vorstehenden axialen Dorn des Pumpenhalses aufgesteckt und dort befestigt sind, und die in der Ausgangslage in einer Ebene dichtend auf den Durchgangsöffnungen der Ventile flach aufliegen.The object is achieved with a dispenser of the type mentioned above with the characterizing features of claim 1, characterized in that the passage openings of the inlet valve and the exhaust valve closing valve flaps are formed similar and each of a flat elastic disc with a central hole, which are mounted on a protruding axial mandrel of the top surface of the storage container or on a protruding axial mandrel of the pump neck and secured there, and lie in the starting position in a plane sealingly on the through holes of the valves.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.

Die als einstückiges Konstruktionselement glockenförmig ausgebildete Spenderpumpe des Spenderkopfes, die von unten in den Spenderkopf eingeschoben ist und die im montierten Zustand (auf dem Speicherbehälter ist der Spenderkopf aufgesteckt) gemeinsam mit der Deckfläche des Speicherbehälters eine Pumpkammer ausbildet, ist an ihrem oberen Ende zu einem Hals mit kreisrunden Querschnitt verengt. Dieser innen hohle Hals der Spenderpumpe stellt die Auslassöffnung der Pumpkammer dar und wird durch Anordnung einer Ventilklappe auf seinem oberen Ende als Auslassventil genutzt.The bell-shaped as an integral construction element dispenser pump of the dispenser head, which is inserted from below into the dispenser head and in the mounted state (on the storage container, the dispenser head is attached) together with the top surface of the storage container forms a pumping chamber is at its upper end to a neck narrowed with circular cross-section. This inside hollow neck of the dispenser pump represents the outlet opening of the pumping chamber and is used by placing a valve flap on its upper end as an outlet valve.

Entsprechend einer vorteilhaften Ausgestaltung der Erfindung ist der vorstehende axiale Dorn des Pumpenhalses ein Teil der Spenderpumpe bzw. des Pumpenhalses und ist mit diesem einstückig gefertigt, wobei er über Stege mit dem Pumpenhals verbunden ist. Zur Befestigung der elastischen Scheibe, beispielsweise eine Gummischeibe, auf dem Dorn ist dieser mit einer umlaufenden Nut in Höhe der Oberkante des Pumpenhalses ausgebildet, in die die Gummischeibe beim Aufstecken einrastet.According to an advantageous embodiment of the invention, the projecting axial mandrel of the pump neck is part of the donor pump or the pump neck and is made in one piece with this, wherein it is connected via webs with the pump neck. To attach the elastic disc, such as a rubber disc, on the mandrel this is formed with a circumferential groove at the level of the upper edge of the pump neck into which engages the rubber disc when plugging.

Zur Endmontage ist es also nur erforderlich, auf diesen Dorn der Spenderpumpe die Gummischeibe mit ihrer zentralen Bohrung aufzustecken, um die Auslassöffnung des Pumpenhalses zu einem Auslassventil umzubilden.For final assembly, it is therefore only necessary aufzustecken on this mandrel of the donor pump, the rubber disc with its central bore to form the outlet opening of the pump neck to an exhaust valve.

Beim Spendevorgang, wobei das Auslassventil zum Austrag des Produkts geöffnet ist, ist die Gummischeibe mit ihrem äußeren Umfang nach oben in Richtung zum Mundstück verwölbt, während das Zentrum der Gummischeibe durch die umlaufende Nut des Dorns in seine ursprüngliche Position verbleibt. Bei der Rückstellung des Auslassventils durch den in der Pumpkammer erzeugten Unterdruck kehrt der äußere Rand in seine Ausgangslage zurück und die Gummischeibe liegt wieder dichtend auf dem Pumpenhals auf.In the dispensing operation, with the discharge valve open to discharge the product, the rubber disc is cambered with its outer periphery up toward the mouthpiece while the center of the rubber disc remains in its original position through the circumferential groove of the spike. Upon return of the exhaust valve by the negative pressure generated in the pumping chamber, the outer edge returns to its original position and the rubber disc reseals sealingly on the pump neck.

Um die Herstellung des Auslassventils noch weiter zu vereinfachen, ist es auch möglich, einen Teil des Pumpenhalses als Ventilklappe zu verwenden.In order to simplify the production of the exhaust valve even further, it is also possible to use a part of the pump neck as a valve flap.

Hierzu wird der Pumpenhals mit eine den Hals oben abschließenden geschlossene Kappe einstückig gefertigt. Durch einen Trennvorgang wird diese Kappe dann vom Pumpenhals nur teilweise so abgetrennt, dass die Kappe über einen verbleibenden ungetrennten Bereich in Form einer Lasche mit dem Pumpenhals verbunden bleibt. Da die Lasche aus dem gleichen elastischen Material wie die gesamte Spenderpumpe gefertigt ist, wirkt die Lasche nun als ein Scharnier für die Ventilklappe, der ursprünglichen Kappe des Pumpenhalses.For this purpose, the pump neck is made in one piece with a closed cap closing off the top of the neck. By a separation process, this cap is then only partially separated from the pump neck so that the cap remains connected to the pump neck over a remaining unseparated area in the form of a tab. Since the tab is made of the same elastic material as the entire donor pump, the tab now acts as a hinge for the valve flap, the original cap of the pump neck.

Die Fertigung dieser Ventilklappe reduziert sich somit auf einen einfachen teilweisen Trennvorgang an der einteilig durch beispielsweise Spritzguss gefertigten Spenderpumpe.The production of this valve flap is thus reduced to a simple partial separation process on the one-piece by, for example, injection-molded dispenser pump.

Weitere Vorteile, Merkmale und Eigenschaften der Erfindung werden nachfolgend an in schematischen Zeichnungsfiguren dargestellten Ausführungsbeispielen näher erläutert, wobei nur Figuren 1-3 einen spender gemäß der Erfindung zeigen.Further advantages, features and characteristics of the invention are explained in more detail below with reference to exemplary embodiments illustrated in schematic drawing figures, with only FIGS. 1-3 showing a dispenser according to the invention.

Es zeigen:

Fig. 1
einen Spender gemäß der Erfindung in einem Vertikalschnitt,
Fig. 2
den Spender der Figur 1 in einer Vorderansicht,
Fig. 3
einen vergrößerten Teilausschnitt der Spenderpumpe in einem Vertikalschnitt,
Fig. 4
einen vergrößerten Teilausschnitt einer anderen Ausführung der Spenderpumpe in einem Vertikalschnitt,
Fig. 5
einen vergrößerten Teilausschnitt eines Spenders mit geöffnetem Auslassventil,
Fig. 6
einen vergrößerten Teilausschnitt eines Spenders mit geschlossenem Auslassventil gemäß Fig. 5.
Show it:
Fig. 1
a dispenser according to the invention in a vertical section,
Fig. 2
the donor of Figure 1 in a front view,
Fig. 3
an enlarged partial section of the donor pump in a vertical section,
Fig. 4
an enlarged partial section of another embodiment of the donor pump in a vertical section,
Fig. 5
an enlarged partial section of a dispenser with open outlet valve,
Fig. 6
an enlarged partial section of a dispenser with a closed outlet valve of FIG .. 5

In den Figuren 1 und 2 ist in einem Vertikalschnitt (Fig. 1) und in einer Vorderansicht (Fig. 2) ein Spender 1 zur Abgabe dosierter Mengen flüssiger bis pastöser Produkte mit einer erfindungsmäßig ausgebildeten Spenderpumpe 10 dargestellt.In Figures 1 and 2 is in a vertical section (Fig. 1) and in a front view 2 shows a dispenser 1 for dispensing metered quantities of liquid to pasty products with a dispenser pump 10 designed according to the invention.

Der Spender 1 besteht aus einem Speicherbehälter 3 mit einem unteren offenen Ende 31 zum Einfüllen des zu spendenden Produkts. Nach erfolgtem Einfüllen wird dieses offene Ende 31 dann durch einen Nachrückkolben 32 verschlossen. Das obere Ende des Speicherbehälters 3 ist durch eine Deckfläche 30 mit Einlassventil 7 begrenzt.The dispenser 1 consists of a storage container 3 with a lower open end 31 for filling the product to be dispensed. After filling, this open end 31 is then closed by a Nachrückkolben 32. The upper end of the storage container 3 is bounded by a cover surface 30 with inlet valve 7.

Auf den Speicherbehälter 3 ist der Spenderkopf 2 aufgeschoben, bestehend aus der glockenförmigen bzw. domartigen Spenderpumpe 10 mit einem Auslassventil 8 und mit einem dem Auslassventil 8 nachgeordneten Spendekanal 6, Mundstück 4 mit Applikationsöffnung und Verschlusslasche 5. Der Spenderkopf 2 ist dabei so auf den Speicherbehälter 3 aufgeschoben, dass die unten offene Spenderpumpe 10 dicht auf der Deckfläche des Speicherbehälters 3 aufsitzt bzw. mit dieser verrastet ist und sich zwischen der Spenderpumpe 10 und der Deckfläche 30 eine Pumpkammer 18 ausbildet. Auf den Spenderkopf 2 ist zu dessen Schutz eine Kappe 9 aufgeschoben.On the storage container 3, the dispenser head 2 is pushed, consisting of the bell-shaped or dome-shaped dispenser pump 10 with an outlet 8 and with a discharge valve 8 downstream dispensing channel 6, mouthpiece 4 with application opening and locking tab 5. The dispenser head 2 is so on the storage container 3 postponed that the bottom open dispenser pump 10 is seated tightly on the top surface of the storage container 3 and is locked with this and between the dispenser pump 10 and the top surface 30, a pumping chamber 18 is formed. On the dispenser head 2, a cap 9 is pushed to protect it.

Das Auslassventil 8 der glockenförmig ausgebildeten Spenderpumpe 10 befindet sich an ihrem offenen halsförmigen oberen Ende, auf dem eine Ventilklappe 20 dichtend aufliegt. Erfindungsgemäß wird diese Ventilklappe 20 beispielsweise durch eine Gummischeibe mit zentralem Loch 26 gebildet, die auf einem zentralen Dorn 11 des Pumpenhalses 12 aufgeschoben ist.The outlet valve 8 of the bell-shaped dispenser pump 10 is located at its open neck-shaped upper end, on which a valve flap 20 rests sealingly. According to the invention, this valve flap 20 is formed for example by a rubber disc with a central hole 26, which is pushed onto a central mandrel 11 of the pump neck 12.

In Figur 3 ist die Spenderpumpe 10 der Figur 1 nochmals vergrößert dargestellt. Im oberen Bereich des Pumpenhalses 12 sind in der hier vorhandenen Durchgangsöffnung 15 beispielsweise vier Stege 16 angeordnet, die einstückig mit dem gemeinsamen Dorn 11 ausgebildet sind. Der Dorn 11 besitzt in Höhe der Oberkante 27 Pumpenhalses 12 eine umlaufende Nut 14. Auf diesen Dorn 11 wird die Ventilklappe bzw. hier eine Gummischeibe 20 mit ihrem zentralen Loch 26 aufgeschoben, wobei sie in der Nut 14 einrastet und dichtend auf der Oberkante 27 aufliegt und damit die gesamte obere Durchgangsöffnung 15 des Pumpenhalses 12 bedeckt.In Figure 3, the dispenser pump 10 of Figure 1 is shown enlarged again. In the upper region of the pump neck 12, for example, four webs 16 are arranged in the passage opening 15 present here, which are integral with the common mandrel 11 are formed. The mandrel 11 has at the level of the upper edge 27 pump neck 12 a circumferential groove 14. On this mandrel 11, the valve flap or here a rubber disc 20 is pushed with its central hole 26, wherein it engages in the groove 14 and sealingly rests on the upper edge 27 and thus the entire upper through hole 15 of the pump neck 12 is covered.

Bei einem äußeren Druck in Pfeilrichtung 24 nach unten auf die Spenderpumpe 10, wodurch die elastischen Wände 13 der Spenderpumpe 10 nachgeben und sich der Pumpenhals 12 in gleicher Richtung nach unten bewegt, wird der Inhalt der Pumpkammer 18 in Pfeilrichtung 17 nach oben gedrückt, wodurch sich die Gummischeibe 20 an ihrem äußeren Umfang nach oben verwölbt und die Durchgangsöffnung 15 somit teilweise freigibt. Der mittlere Bereich der Gummischeibe 20 bleibt dabei in ihrer Lage unverändert, bedingt durch ihren Sitz in der Nut 14 des Dorns 11.At an external pressure in the direction of arrow 24 down to the donor pump 10, whereby the elastic walls 13 yield to the donor pump 10 and the pump neck 12 moves in the same direction downwards, the contents of the pumping chamber 18 is pushed in the direction of arrow 17 upwards, thereby the rubber disc 20 curves upwards on its outer circumference and thus partially opens the passage opening 15. The central region of the rubber disc 20 remains unchanged in its position, due to its seat in the groove 14 of the mandrel 11th

In Figur 4 ist eine andersartige Ausbildung eines Auslassventils 8 dargestellt. Bei sonst gleicher Ausbildung der Spenderpumpe 10 ist bei dieser alternativen Ausführung lediglich der Pumpenhals 12 geändert. Unter Wegfall der Stege 16 und des Dorns 11 ist der obere Abschluss des Pumpenhalses 12 glatt und mit einer schwenkbaren Ventilklappe bzw. Kappe 20' ausgebildet. Der Pumpenhals 12 und die Kappe 20' wurden einstückig gefertigt und dann durch einen Trennvorgang soweit teilweise getrennt, dass die Kappe 20' nur noch über einen kleinen ungetrennten Bereich, einer Lasche 22 mit dem Pumpenhals 12 beweglich verbunden ist. Die so bewegliche Kappe 20' bzw. Ventilklappe stellt somit eine besonders einfache Ausführungsform einer Ventilklappe dar, die funktionssicher den Pumpenhals 12 bzw. die Durchgangsöffnung 15' dichtend verschließt und öffnet.FIG. 4 shows a different design of an outlet valve 8. With otherwise the same design of the dispenser pump 10, only the pump neck 12 is changed in this alternative embodiment. By eliminating the webs 16 and the mandrel 11, the upper end of the pump neck 12 is smooth and formed with a pivotable valve flap or cap 20 '. The pump neck 12 and the cap 20 'were made in one piece and then partially separated by a separation process so that the cap 20' is only movably connected to the pump neck 12 via a small unseparated area, a tab 22. The thus movable cap 20 'or valve flap thus represents a particularly simple embodiment of a valve flap, the functionally reliable the pump neck 12 and the passage opening 15' sealingly closes and opens.

In den Figuren 5 und 6 ist in einem vergrößerten Teilausschnitt ein Spenderkopf 2 eines Spenders 1 mit einer Spenderpumpe 10 dargestellt, deren Auslassventil 8 entsprechend der Fig. 4 nicht mit einer flachen sondern mit einer domartigen-Ventilklappe 20" ausgebildet ist, die gemeinsam mit dem Pumpenhals 12 gefertigt wurde.In FIGS. 5 and 6, a dispenser head 2 of a dispenser 1 with a dispenser pump 10 is shown in an enlarged partial section, the outlet valve 8 of which, according to FIG. 4, is not formed with a flat but with a dome-shaped valve flap 20 "which together with the Pump neck 12 was made.

In Fig. 5 ist das Auslassventil 8 mit dieser - nur noch über eine ungetrennte Lasche 22 mit dem Pumpenhals 12 verbundene - Ventilklappe bzw. Kappe 20" in geöffneter Stellung und in der Fig. 6 in geschlossener Stellung abgebildet.In Fig. 5, the outlet valve 8 is shown with this - connected only via an unseparated tab 22 with the pump neck 12 - valve flap or cap 20 "in the open position and in Fig. 6 in the closed position.

Weiterhin ist aus dieser vergrößerten Darstellung des Spenderkopfes 2 die erfindungsgemäße nietförmige Verbindung der Ventilklappe 33 des Einlassventils 7 mit der Deckfläche 30 des Speicherbehälters 3 deutlicher als bei der Figur 1 zu ersehen. Hierbei ist die Ventilklappe 33 des Einlassventils 7 eine mit einem zentralen Loch ausgebildete elastische Scheibe 33, vorzugsweise eine Gummischeibe, die auf einen vorstehenden Dorn 34 der Deckfläche 30 aufgesteckt ist, wonach der überstehende Kopf des Dorns 34 (über die Scheibe 33) durch eine thermische Verformung an seinem Ende derart deformiert wurde, dass die Scheibe 33 nun unlösbar auf diesem Dorn 34 befestigtFurthermore, from this enlarged view of the dispenser head 2, the rivet-shaped connection according to the invention of the valve flap 33 of the inlet valve 7 with the top surface 30 of the storage container 3 can be seen more clearly than in FIG. Here, the valve flap 33 of the inlet valve 7 is formed with a central hole elastic disc 33, preferably a rubber disc which is attached to a protruding mandrel 34 of the top surface 30, after which the projecting head of the mandrel 34 (via the disc 33) by a thermal Deformation was deformed at its end so that the disc 33 is now permanently attached to this mandrel 34

Gleichfalls deutlicher ist den Figuren 5 und 6 die Befestigung der Spenderpumpe 10 mit ihren Seitenwänden 13 mittels einer Rastverbindung 37 in einer ringförmigen Nut 36 des Speicherbehälters 3 zu entnehmen. Die ringförmige Nut 36 ist aus einer über die Deckfläche 30 hinausreichenden Behälterverlängerung 35 und dem Seitenrand 38 der Deckfläche 30 gebildet, in die der untere Rand der Seitenwände 13 eingeschoben und mittels einer Rastverbindung verrastet sind.Likewise clear to Figures 5 and 6, the attachment of the dispenser pump 10 with its side walls 13 by means of a latching connection 37 in an annular groove 36 of the storage container 3 can be seen. The annular groove 36 is formed from a container extending beyond the top surface 30 container extension 35 and the side edge 38 of the top surface 30, in which the lower edge of the side walls 13 are inserted and latched by a latching connection.

Ein Spender in der Ausbildung der Figuren 5 und 6 ist auf Grund der wenigen und einfach gestalteten Konstruktionsteile des Spenderkopfes in einfacher Weise beispielhaft mit folgenden Arbeitsschritten montierbar:

  1. a) auf den ohne Spenderpumpe 10 von oben zugänglichen Dorn (Nietkopf) 34 wird als Ventilklappe 33 die elastische Scheibe aufgeschoben und danach der Dorn 34 verformt;
  2. b) die Kappe 20" des Pumpenhalses 12 wird teilweise vom Pumpenhals 12 abgetrennt;
  3. c)die nach b) vorbereitete Spenderpumpe 10 wird in die Nut 36 des Speicherbehälters 3 eingeschoben und dort verrastet ;
  4. d) der Spendekanal 6 des Spenderkopfes 2 wird auf den Pumpenhals 12 aufgeschoben und dort mittels einer Rastverbindung 39 befestigt.
A dispenser in the embodiment of FIGS. 5 and 6 can be assembled in a simple manner by way of example with the following work steps on the basis of the few and simply designed construction parts of the dispenser head:
  1. a) on the without a dispenser pump 10 from above accessible mandrel (rivet head) 34 is pushed as the valve flap 33, the elastic disc and then the mandrel 34 is deformed;
  2. b) the cap 20 "of the pump neck 12 is partially separated from the pump neck 12;
  3. c) the dispenser pump 10 prepared according to b) is inserted into the groove 36 of the storage container 3 and latched there;
  4. d) the dispensing channel 6 of the dispenser head 2 is pushed onto the pump neck 12 and fastened there by means of a latching connection 39.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Spenderdonor
22
Spenderkopfdispenser head
33
Speicherbehälterstorage container
44
Mundstückmouthpiece
55
Verschlusslascheflap
66
Spendekanaldispensing channel
77
Einlassventilintake valve
88th
Auslassventiloutlet valve
99
Kappecap
1010
glockenförmige Spenderpumpe (Dom)bell-shaped dispenser pump (Dom)
1111
Dornmandrel
1212
Pumpenhalspump neck
1313
elastische Seitenwände des Dornselastic sidewalls of the spine
1414
Nut im DornGroove in the spine
15, 15', 15"15, 15 ', 15 "
DurchgangsöffnungThrough opening
1616
StegeStege
1717
AusstömrichtungAusstömrichtung
1818
Pumpkammerpumping chamber
20, 20', 20"20, 20 ', 20 "
obere Ventilklappeupper valve flap
2222
Lascheflap
2424
Druckrichtungprint direction
2626
Loch in GummischeibeHole in rubber disc
2727
Oberkante PumpenhalsTop edge of pump neck
3030
Deckflächecover surface
3131
offenes Ende des Speicherbehälters 3open end of the storage container. 3
3232
Kolbenpiston
3333
untere Ventilklappe (Gummi)lower valve flap (rubber)
3434
Nietkopfrivet head
3535
Behälterverlängerungcontainer extension
3636
ringförmige Nutannular groove
3737
Rastverbindunglocking connection
3838
Seitenrand der DeckflächeSide edge of the top surface
3939
Rastverbindunglocking connection

Claims (5)

  1. Dispenser (1) for dispensing metered amounts of liquid to pasty products, consisting of a downwardly open cylindrical storage container (3), the lower open end (31) of which is closed by an axially displaceable piston (32), and a dispenser head (2), which is arranged on the storage container (3) and which contains a bell-shaped dispenser pump (10) with resilient side walls (13), which together with the top surface (30) of the storage container (3) and the inlet valve (7) thereof and an outlet valve (8) arranged in the pump neck (12) form a closed pump chamber (18), wherein the outlet valve (8) is so produced as part of the pump neck (12) integrally therewith that through a simple working step the entire upper passage opening of the pump neck (12) is closable by a valve flap (20) which in the starting position sealingly rests on the pump neck (12), characterised in that the valve flaps (20, 33) closing the passage openings of the inlet valve (7) and the outlet valve (8) are of identical construction and each consist of a flat resilient disc with central aperture, which are plugged onto a protruding axial mandrel (34) of the top surface (30) of the storage container (3) or onto a protruding axial mandrel (11) of the pump neck (12) and fastened there and which in the starting position flatly rest in a plane sealingly on the passage openings of the valves (7, 8).
  2. Dispenser (1) according to claim 1, characterised in that the valve flaps (20, 33) are rubber discs which rest in flat manner.
  3. Dispenser (1) according to claim 1 or 2, characterised in that the mandrel (11) is a part of the pump neck (12) and is produced integrally therewith and connected by way of webs (16).
  4. Dispenser (1) according to claim 3, characterised in that the mandrel (11) is formed with an encircling groove (14) at the level of the upper edge (27) of the pump neck (12) for detenting the valve flap (20) on the mandrel (11).
  5. Dispenser (1) according to claim 1, 2, 3 or 4, characterised in that the resilient valve flap (33) after plugging thereof onto the mandrel (34) is non-detachably fastened thereon by a rivet-shaped thermal deformation of the mandrel (34).
EP03002285A 2002-02-05 2003-02-03 Dispenser for fluid or pasty products Expired - Lifetime EP1332798B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20201742U 2002-02-05
DE20201742U DE20201742U1 (en) 2002-02-05 2002-02-05 Dispenser for flowable products

Publications (3)

Publication Number Publication Date
EP1332798A2 EP1332798A2 (en) 2003-08-06
EP1332798A3 EP1332798A3 (en) 2003-08-20
EP1332798B1 true EP1332798B1 (en) 2007-09-19

Family

ID=7967399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002285A Expired - Lifetime EP1332798B1 (en) 2002-02-05 2003-02-03 Dispenser for fluid or pasty products

Country Status (4)

Country Link
US (1) US7028865B2 (en)
EP (1) EP1332798B1 (en)
AT (1) ATE373521T1 (en)
DE (2) DE20201742U1 (en)

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WO2013023129A1 (en) * 2011-08-11 2013-02-14 Soneco Llc Securing product storage tanks against unauthorized delivery
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Also Published As

Publication number Publication date
DE20201742U1 (en) 2003-03-20
DE50308202D1 (en) 2007-10-31
ATE373521T1 (en) 2007-10-15
US7028865B2 (en) 2006-04-18
EP1332798A2 (en) 2003-08-06
US20030168475A1 (en) 2003-09-11
EP1332798A3 (en) 2003-08-20

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