EP1885614B1 - Device for dispensing a preferably cosmetic fluid - Google Patents

Device for dispensing a preferably cosmetic fluid Download PDF

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Publication number
EP1885614B1
EP1885614B1 EP06753620A EP06753620A EP1885614B1 EP 1885614 B1 EP1885614 B1 EP 1885614B1 EP 06753620 A EP06753620 A EP 06753620A EP 06753620 A EP06753620 A EP 06753620A EP 1885614 B1 EP1885614 B1 EP 1885614B1
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EP
European Patent Office
Prior art keywords
foregoing
valve element
valve seat
valve
fluid
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
EP06753620A
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German (de)
French (fr)
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EP1885614A1 (en
Inventor
Reinhard Neuhaus
Reiker Canfield
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.)
Aptar Dortmund GmbH
Original Assignee
Seaquist Perfect Dispensing GmbH
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Publication date
Application filed by Seaquist Perfect Dispensing GmbH filed Critical Seaquist Perfect Dispensing GmbH
Publication of EP1885614A1 publication Critical patent/EP1885614A1/en
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Publication of EP1885614B1 publication Critical patent/EP1885614B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • 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
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets
    • B65D83/7535—Outlet valves opened by the product to be delivered

Definitions

  • the present invention relates to a device for dispensing a preferably cosmetic fluid according to the preamble of claim 1 and to a use of thermoplastic silicone for producing a valve element of such a device.
  • the fluid is in particular a liquid, a foam, a gel, a lotion, a suspension or the like. If desired, the fluid may also contain dissolved gas or a gas phase.
  • Cosmetic fluid are in a narrower sense, especially body care and cleaning products, cosmetics, or the like., Such as shaving cream, shaving gel, hair gel or the like. To understand. However, there are also technical or other fluids into consideration. In the following, for reasons of simplification and due to the main focus of use, it is often referred only to cosmetic fluid.
  • the EP 0 442 858 A2 discloses a dispenser having a rigid base and an elastic top. Between the upper part and the lower part of a pumping chamber is formed. The upper part is formed in one piece and has a flap-like valve element for forming an inlet valve in the pumping chamber. Next, the upper part forms an outlet valve together with the lower part. For this purpose, a groove-shaped outlet channel with a curved cross section is formed on the lower part, in which an output portion of the upper part is elastically biased.
  • the lower part is preferably made by injection molding of polypropylene or polyethylene.
  • the top is preferably formed by vacuum forming from thermoplastic polyethylene.
  • the known dispensing device does not work satisfactorily, as a proper closing of the valves is not always guaranteed. Furthermore, the production of the upper part and lower part is complicated by different methods. Another device of the Tecknik state discloses the US 5,743,441 , FR 2838108 discloses a device according to the preamble of claim 1.
  • the present invention has for its object to provide a device and a use of thermoplastic silicone for producing a valve element, so that a simple, inexpensive production in particular all parts by injection molding with good sealing and closing properties of the valve element is made possible.
  • An essential idea of the present invention is to produce the valve element made of thermoplastic silicone.
  • the elasticity of the silicone is very advantageous in terms of the sealing effect and deformability of the valve element.
  • thermoplastic silicone allows much easier processing, in particular by conventional injection molding. This is not possible with the usual silicone produced from two components immediately before processing, and consequently considerably reduces the mechanical and time expenditure.
  • thermoplastic silicone for producing a valve element of a device for dispensing a preferably cosmetic fluid, wherein the valve element is injected from the silicone at a processing temperature of 140 ° C to 250 ° C, allows a simple and inexpensive production.
  • the usual injection molding and injection molding machines can be used.
  • valve element is at least partially injected directly against the valve seat and / or another part of the device - in particular in the same shape in which the valve seat or the part was previously sprayed.
  • the valve and the part can be made from a low cost polyolefin such as polypropylene. This results in a very simple and inexpensive production. In particular, an otherwise required mounting of the valve element on the device, in particular on the valve seat or other parts of the device, omitted. Furthermore, special machines are unnecessary for a special production of the valve element.
  • the valve element is preferably resiliently biased against the valve seat and formed self-closing. This allows a simple structure.
  • the valve element is preferably non-positively and / or positively, in particular by means of at least one engagement portion or by injection, attached to the device. This allows a very simple production, in particular in combination with the preferred direct injection of the valve element, since other assembly or mounting steps can be omitted.
  • Fig. 1 shows a proposed device 1 for dispensing a preferably cosmetic, not shown fluid in the aforementioned sense.
  • the device 1 can in particular be designed as an output head or actuating element, a metering pump or hand-operated pump or the like.
  • the device 1 can also be integrated into another device, such as a pump or the like.
  • the device 1 has a preferably at least partially elastically deformable valve element 2, which is provided in the illustrated example with a particular curved or channel-like contact region 3.
  • the device 1 further has a valve seat 4, which is assigned to the valve element 2 or its contact region 3, and which, in the exemplary embodiment, is provided by a particularly curved or cap-like part 5 of the device 1 is formed.
  • the part 5 or the valve seat 4 and the valve element 2 together form a valve of the device 1 for the fluid.
  • valve element 2 and the part 5 are shown separated from each other or exploded in Fig. 1 only for illustrative purposes.
  • the valve member 2 is preferably not made separately from the part 5, but is injection molded directly against it.
  • the valve element 2 is preferably provided with at least one engagement portion 6, which engages in a corresponding undercut or recess 7 on the valve seat 4 or part 5, to ensure a secure attachment of the valve element 2 and / or sealing.
  • engagement member 6 is arranged or formed on part 5.
  • valve element 2 and part 5 are preferably connected to each other via other, not shown engaging elements - in particular also insoluble - intervene, for example, in recesses or openings 8 and provide a particular positive connection.
  • valve seat 4 and / or the part 5 are preferably injection-molded, in particular from a thermoplastic, very preferably from a polyolefin, such as polypropylene or the like .
  • a thermoplastic very preferably from a polyolefin, such as polypropylene or the like .
  • other suitable materials can be used.
  • valve element 2 is in particular directly injection-molded against the valve seat 4 or the part 5.
  • spraying of the valve element 2 takes place in the same casting mold in which the part 5 was cast with the valve seat 4 after the part 5 has at least sufficient strength for injection molding of the valve element 2. This results in a very simple, fast and inexpensive production.
  • valve element 2 rests with its preferably groove-like contact region 3 on the valve seat 4 or engages in this.
  • valve element 2 in particular its contact area 3, resiliently biased against the valve seat 4 in order to achieve a good seal.
  • This bias can be achieved by appropriate dimensional adjustment and consideration of the shrinkage behavior during cooling.
  • the valve or the contact region 3 is preferably surrounded on all sides or U-shaped by the engagement element 6, wherein the engagement element 6 inextricably engages in the corresponding circumferential recess 7, so that exiting through the outlet opening 9 from the part 5 fluid only between the valve seat 4 and contact area 3 - along the gutter - can be spent.
  • the valve may be opened as needed by manual operation or the like.
  • the opening of the valve takes place in particular in that the fluid, not shown, with sufficient fluid pressure - especially at low pressures of the device 1 for opening a supply valve - the valve element 2, in particular only the contact area 3, lifts off from the valve seat 4, so that the valve the device 1 is opened and an output of the fluid is made possible.
  • the valve closes preferably automatically, by the restoring forces cause reinvestment of the valve element 2 and its contact area 3 on the valve seat 4.
  • the valve element 2 is made of thermoplastic silicone. Beyond the normal elastic properties of a silicone, the silicone is thermoplastic. In particular, it is a copolymer, such as a two-phase built block copolymer, most preferably a polydimethylsiloxane urea Copplymer.
  • the Shore A hardness of the silicone is preferably 40 to 100, in particular 60 to 100 (measurement according to DIN 53505).
  • thermoplastic silicone allows a significant simplification of the production.
  • the injection molds, injection molding machines or the like used for the other components such as the part 5 or the valve seat 4 can also be used for producing the valve element 2.
  • the thermoplastic silicone does not require working at much higher temperatures, no processing of two components to make the silicone and no (substantial) curing after molding.
  • thermoplastic silicone allows the injection molding of thin-walled, elastic valve elements 2 at a processing temperature of preferably 140 ° C to 250 ° C.
  • the valve element 2 is formed at least substantially disc-like, wherein the engaging portion 6 and possibly other engagement elements, not shown, which engage in openings 8 on the part 5, ensure secure attachment of the valve element 2 on part 5.
  • the valve element 2 is inextricably connected to the part 5 after injection.
  • the valve element 2 in the desired areas, in particular with its contact area 3, for opening the valve from the part 5 or valve seat 4 separate or stand out.
  • This is a particular aspect and advantage of the thermoplastic silicone. This does not connect directly with the injection of the material of the part 5.
  • the device 1 may have a pumping space, which is preferably at least partially bounded or formed by the part 5.
  • fluid can then be dispensed from the pump chamber by manual deformation of the part 5, in particular by depression, via the valve formed by the contact region 3 and valve seat 4.
  • the part 5 is then formed correspondingly elastically deformable. Subsequently, fluid can be taken up again into the pump chamber by preferably automatically resetting the elastic part 5, in particular sucked in.
  • valve element 2 can also be made separately, in particular injection molded, independently of the valve seat 4 / part 5, and possibly not be firmly connected in the mounted state.
  • thermoplastic silicone with its outstanding properties can also be used for another, in particular injection-molded, part of the device 1 in the aforementioned sense.

Abstract

The invention relates to a device ( 1 ), comprising a valve element ( 2 ) and a valve seat ( 4 ) associated therewith, for dispensing a preferably cosmetic fluid. The invention also relates to the use of thermoplastic silicone for producing a valve element. The aim of the invention is to produce the aforementioned device in a simple and inexpensive manner. For this purpose, the valve element ( 2 ) is produced from a thermoplastic silicone. The valve element is especially injection-molded from thermoplastic silicone at a processing temperature of from 140° C. to 250° C.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zur Ausgabe eines vorzugsweise kosmetischen Fluids gemäß dem Oberbegriff des Anspruchs 1 sowie eine Verwendung von thermoplastischem Silikon zur Herstellung eines Ventilelements einer derartigen Vorrichtung.The present invention relates to a device for dispensing a preferably cosmetic fluid according to the preamble of claim 1 and to a use of thermoplastic silicone for producing a valve element of such a device.

Bei dem Fluid handelt es sich insbesondere um eine Flüssigkeit, einen Schaum, ein Gel, eine Lotion, eine Suspension oder dgl. Bedarfsweise kann das Fluid auch gelöstes Gas oder eine Gasphase enthalten. Unter dem begriff "kosmetisches Fluid" sind in einem engeren Sinn vor allem Körperpflege und -Reinigungsprodukte, Kosmetika, oder dgl., wie Rasierschaum, Rasiergel, Haargel oder dgl., zu verstehen. Es kommen jedoch auch technische oder sonstige Fluide in Betracht. Nachfolgend wird aus Vereinfachungsgründen und aufgrund des Nutzungsschwerpunkts oft nur von kosmetischem Fluid gesprochen.The fluid is in particular a liquid, a foam, a gel, a lotion, a suspension or the like. If desired, the fluid may also contain dissolved gas or a gas phase. Under the term "cosmetic fluid" are in a narrower sense, especially body care and cleaning products, cosmetics, or the like., Such as shaving cream, shaving gel, hair gel or the like. To understand. However, there are also technical or other fluids into consideration. In the following, for reasons of simplification and due to the main focus of use, it is often referred only to cosmetic fluid.

Die EP 0 442 858 A2 offenbart eine Abgabevorrichtung mit einem starren Unterteil und einem elastischen Oberteil. Zwischen dem Oberteil und dem Unterteil ist eine Pumpkammer gebildet. Das Oberteil ist einstückig ausgebildet und weist ein lappenartiges Ventilelement zur Bildung eines Einlaßventils in der Pumpkammer auf. Weiter bildet das Oberteil zusammen mit dem Unterteil ein Auslaßventil. Hierzu ist am Unterteil ein nutförmiger Auslaßkanal mit gekrümmten Querschnitt gebildet, in den ein Ausgabeabschnitt des Oberteils elastisch vorgespannt ist. Das Unterteil ist vorzugsweise durch Spritzgießen aus Polypropylen oder Polyethylen hergestellt. Das Oberteil ist vorzugsweise durch Vakuumformung aus thermoplastischem Polyethylen gebildet. Die bekannte Abgabevorrichtung funktioniert nicht zufriedenstellend, da ein einwandfreies Schließen der Ventile nicht immer gewährleistet ist. Des weiteren ist die Herstellung des Oberteils und Unterteils durch unterschiedliche Verfahren aufwendig. Eine andere Vorrichtung des Stands der Tecknik offenbart die US 5 743 441 . FR 2838108 offenbart eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1.The EP 0 442 858 A2 discloses a dispenser having a rigid base and an elastic top. Between the upper part and the lower part of a pumping chamber is formed. The upper part is formed in one piece and has a flap-like valve element for forming an inlet valve in the pumping chamber. Next, the upper part forms an outlet valve together with the lower part. For this purpose, a groove-shaped outlet channel with a curved cross section is formed on the lower part, in which an output portion of the upper part is elastically biased. The lower part is preferably made by injection molding of polypropylene or polyethylene. The top is preferably formed by vacuum forming from thermoplastic polyethylene. The known dispensing device does not work satisfactorily, as a proper closing of the valves is not always guaranteed. Furthermore, the production of the upper part and lower part is complicated by different methods. Another device of the Tecknik state discloses the US 5,743,441 , FR 2838108 discloses a device according to the preamble of claim 1.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung und eine Verwendung von thermoplastischem Silikon zur Herstellung eines Ventilelements anzugeben, so daß eine einfache, kostengünstige Herstellung insbesondere aller Teile durch Spritzgießen bei guten Dicht- und Schließeigenschaften des Ventilelements ermöglicht wird.The present invention has for its object to provide a device and a use of thermoplastic silicone for producing a valve element, so that a simple, inexpensive production in particular all parts by injection molding with good sealing and closing properties of the valve element is made possible.

Die obige Aufgabe wird durch eine Vorrichtung gemäß Anspruch 1 gelöst. Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.The above object is achieved by a device according to claim 1. Advantageous developments are the subject of the dependent claims.

Eine wesentliche Idee der vorliegenden Erfindung liegt darin, das Ventilelement aus thermoplastischem Silikon herzustellen.An essential idea of the present invention is to produce the valve element made of thermoplastic silicone.

Die Elastizität des Silikons ist sehr vorteilhaft hinsichtlich der Abdichtwirkung und Verformbarkeit des Ventilelements.The elasticity of the silicone is very advantageous in terms of the sealing effect and deformability of the valve element.

Durch den Einsatz von thermoplastischem Silikon wird eine wesentlich einfachere Verarbeitung ermöglicht, insbesondere durch übliches Spritzgießen. Dies ist mit dem üblichen, aus zwei Komponenten unmittelbar vor der Verarbeitung hergestellten Silikon nicht möglich und reduziert den maschinellen und zeitlichen Aufwand folglich sehr wesentlich.The use of thermoplastic silicone allows much easier processing, in particular by conventional injection molding. This is not possible with the usual silicone produced from two components immediately before processing, and consequently considerably reduces the mechanical and time expenditure.

Insbesondere gestattet die vorschlagsgemäße Verwendung von thermoplastischem Silikon zur Herstellung eines Ventilelements einer Vorrichtung zur Ausgabe eines vorzugsweise kosmetischen Fluids, wobei das Ventilelement aus dem Silikon bei einer Verarbeitungstemperatur von 140°C bis 250 °C gespritzt wird, eine einfache und kostengünstige Herstellung. Hierbei können insbesondere die üblichen Spritzformen und Spritzmaschinen verwendet werden.In particular, the proposed use of thermoplastic silicone for producing a valve element of a device for dispensing a preferably cosmetic fluid, wherein the valve element is injected from the silicone at a processing temperature of 140 ° C to 250 ° C, allows a simple and inexpensive production. In this case, in particular the usual injection molding and injection molding machines can be used.

Besonders bevorzugt ist vorgesehen, daß das Ventilelement zumindest partiell direkt gegen den Ventilsitz und/oder ein sonstiges Teil der Vorrichtung - insbesondere in der selben Form, in der der Ventilsitz bzw. das Teil zuvor gespritzt wurde - gespritzt wird. Der Ventil und das Teil können insbesondere aus einem kostengünstigen Polyolefin, wie Polypropylen, hergestellt werden. So ergibt sich eine sehr einfache und kostengünstige Herstellung. Insbesondere kann eine ansonsten erforderliche Montage des Ventilelements an der Vorrichtung, insbesondere am Ventilsitz oder sonstigen Teilen der Vorrichtung, entfallen. Des weiteren erübrigen sich spezielle Maschinen für eine spezielle Herstellung des Ventilelements.Particularly preferably, it is provided that the valve element is at least partially injected directly against the valve seat and / or another part of the device - in particular in the same shape in which the valve seat or the part was previously sprayed. In particular, the valve and the part can be made from a low cost polyolefin such as polypropylene. This results in a very simple and inexpensive production. In particular, an otherwise required mounting of the valve element on the device, in particular on the valve seat or other parts of the device, omitted. Furthermore, special machines are unnecessary for a special production of the valve element.

Das Ventilelement ist vorzugsweise elastisch gegen den Ventilsitz vorgespannt und selbstschließend ausgebildet. Dies gestattet einen einfachen Aufbau.The valve element is preferably resiliently biased against the valve seat and formed self-closing. This allows a simple structure.

Das Ventilelement ist vorzugsweise kraft- und/oder formschlüssig, insbesondere mittels mindestens eines Eingriffabschnitts bzw. durch Anspritzen, an der Vorrichtung befestigt. Dies gestattet insbesondere in Kombination mit dem bevorzugten unmittelbaren Anspritzen des Ventilelements eine sehr einfache Herstellung, da sonstige Montage- oder Befestigungsschritte entfallen können.The valve element is preferably non-positively and / or positively, in particular by means of at least one engagement portion or by injection, attached to the device. This allows a very simple production, in particular in combination with the preferred direct injection of the valve element, since other assembly or mounting steps can be omitted.

Weitere Vorteile, Merkmale, Eigenschaften und Aspekte der vorliegenden Erfindung ergeben sich aus den Ansprüchen und der folgenden Beschreibung einer bevorzugten Ausführungsform anhand der Zeichnung. Die einzige Figur zeigt:

  • eine perspektivische, explosionsartige Ansicht einer vorschlagsgemäßen Ventilvorrichtung.
Further advantages, features, characteristics and aspects of the present invention will become apparent from the claims and the following description of a preferred embodiment with reference to the drawing. The only figure shows:
  • a perspective, exploded view of a proposed valve device.

Fig. 1 zeigt eine vorschlagsgemäße Vorrichtung 1 zur Ausgabe eines vorzugsweise kosmetischen, nicht dargestellten Fluids im eingangs genannten Sinn. Die Vorrichtung 1 kann insbesondere als ein Ausgabekopf oder Betätigungselement, eine Dosierpumpe bzw. handbetätigte Pumpe oder dgl. ausgebildet sein. Die Vorrichtung 1 kann auch in eine andere Vorrichtung, wie eine Pumpe oder dgl., integriert sein.Fig. 1 shows a proposed device 1 for dispensing a preferably cosmetic, not shown fluid in the aforementioned sense. The device 1 can in particular be designed as an output head or actuating element, a metering pump or hand-operated pump or the like. The device 1 can also be integrated into another device, such as a pump or the like.

Die Vorrichtung 1 weist ein vorzugsweise zumindest partiell elastisch verformbares Ventilelement 2 auf, das beim Darstellungsbeispiel mit einem insbesondere gewölbten oder rinnenartigen Kontaktbereich 3 versehen ist.The device 1 has a preferably at least partially elastically deformable valve element 2, which is provided in the illustrated example with a particular curved or channel-like contact region 3.

Die Vorrichtung 1 weist weiter einen dem Ventilelement 2 bzw. dessen Kontaktbereich 3 zugeordneten Ventilsitz 4 auf, der beim Darstellungsbeispiel von einem insbesondere gewölbten oder kappenartigen Teil 5 der Vorrichtung 1 gebildet ist. Das Teil 5 bzw. der Ventilsitz 4 und das Ventilelement 2 bilden zusammen ein Ventil der Vorrichtung 1 für das Fluid.The device 1 further has a valve seat 4, which is assigned to the valve element 2 or its contact region 3, and which, in the exemplary embodiment, is provided by a particularly curved or cap-like part 5 of the device 1 is formed. The part 5 or the valve seat 4 and the valve element 2 together form a valve of the device 1 for the fluid.

Das Ventilelement 2 und das Teil 5 sind in Fig. 1 lediglich aus Veranschaulichungsgründen abgerückt voneinander bzw. explosionsartig dargestellt. Tatsächlich wird das Ventilelement 2 vorzugsweise nicht separat vom Teil 5 hergestellt, sondern unmittelbar gegen dieses spritzgegossen.The valve element 2 and the part 5 are shown separated from each other or exploded in Fig. 1 only for illustrative purposes. In fact, the valve member 2 is preferably not made separately from the part 5, but is injection molded directly against it.

Das Ventilelement 2 ist vorzugsweise mit mindestens einem Eingriffsabschnitt 6 versehen, der in eine entsprechende Hinterschneidung oder Ausnehmung 7 am Ventilsitz 4 oder Teil 5 eingreift, um eine sichere Befestigung des Ventilelements 2 und/oder Abdichtung zu gewährleisten. Jedoch ist hier auch eine konstruktive Umkehr beispielsweise dahingehend möglich, daß das Eingriffselement 6 am Teil 5 angeordnet bzw. gebildet ist.The valve element 2 is preferably provided with at least one engagement portion 6, which engages in a corresponding undercut or recess 7 on the valve seat 4 or part 5, to ensure a secure attachment of the valve element 2 and / or sealing. However, here is also a structural reversal, for example, to the effect that the engagement member 6 is arranged or formed on part 5.

Das Ventilelement 2 und Teil 5 sind vorzugsweise über weitere, nicht dargestellte Eingriffselemente - insbesondere ebenfalls unlösbar - miteinander verbunden, die beispielsweise in Ausnehmungen oder Durchbrechungen 8 eingreifen und für eine insbesondere formschlüssige Verbindung sorgen.The valve element 2 and part 5 are preferably connected to each other via other, not shown engaging elements - in particular also insoluble - intervene, for example, in recesses or openings 8 and provide a particular positive connection.

Der Ventilsitz 4 und/oder das Teil 5 sind vorzugsweise spritzgegossen, insbesondere aus einem Thermoplasten, ganz bevorzugt aus einem Polyolefin, wie Polypropylen oder dgl.. Jedoch sind auch sonstige geeignete Materialien einsetzbar.The valve seat 4 and / or the part 5 are preferably injection-molded, in particular from a thermoplastic, very preferably from a polyolefin, such as polypropylene or the like .. However, other suitable materials can be used.

Das Ventilelement 2 ist insbesondere unmittelbar gegen den Ventilsitz 4 bzw. das Teil 5 spritzgegossen. Vorzugsweise erfolgt das Spritzen des Ventilelements 2 in der selben Gießform, in der das Teil 5 mit dem Ventilsitz 4 gegossen wurde, nachdem das Teil 5 eine zumindest ausreichende Festigkeit zum Anspritzen des Ventilelements 2 aufweist. So ergibt sich eine sehr einfache, schnelle und kostengünstige Herstellung.The valve element 2 is in particular directly injection-molded against the valve seat 4 or the part 5. Preferably, the spraying of the valve element 2 takes place in the same casting mold in which the part 5 was cast with the valve seat 4 after the part 5 has at least sufficient strength for injection molding of the valve element 2. This results in a very simple, fast and inexpensive production.

Im fertiggestellten Zustand liegt das Ventilelement 2 mit seinem vorzugsweise rinnenartigen Kontaktbereich 3 am Ventilsitz 4 an bzw. greift in diesen ein. Dies bildet ein Ventil der Vorrichtung 1, das vorzugsweise selbstschließend ausgebildet ist. Ggf. ist das Ventilelement 2, insbesondere dessen Kontaktbereich 3, elastisch gegen den Ventilsitz 4 vorgespannt, um eine gute Abdichtung zu erreichen. Diese Vorspannung kann durch entsprechende maßliche Anpassung und Berücksichtigung des Schrumpfverhaltens beim Abkühlen erreicht werden.In the finished state, the valve element 2 rests with its preferably groove-like contact region 3 on the valve seat 4 or engages in this. This forms a valve of the device 1, which is preferably self-closing. Possibly. is the valve element 2, in particular its contact area 3, resiliently biased against the valve seat 4 in order to achieve a good seal. This bias can be achieved by appropriate dimensional adjustment and consideration of the shrinkage behavior during cooling.

Das Ventil bzw. der Kontaktbereich 3 ist vom Eingriffselement 6 vorzugsweise allseitig oder U-förmig umgeben, wobei das Eingriffselement 6 in die entsprechend umlaufende Ausnehmung 7 unlösbar eingreift, so daß durch die Auslaßöffnung 9 aus dem Teil 5 austretendes Fluid nur zwischen Ventilsitz 4 und Kontaktbereich 3 - entlang der Rinne - ausgegeben werden kann.The valve or the contact region 3 is preferably surrounded on all sides or U-shaped by the engagement element 6, wherein the engagement element 6 inextricably engages in the corresponding circumferential recess 7, so that exiting through the outlet opening 9 from the part 5 fluid only between the valve seat 4 and contact area 3 - along the gutter - can be spent.

Das Ventil kann bedarfsweise durch manuelle Betätigung oder dgl. geöffnet werden. Beim Darstellungsbeispiel erfolgt das Öffnen des Ventils insbesondere dadurch, daß das nicht dargestellte Fluid bei ausreichendem Fluiddruck - insbesondere bei Niederdrücken der Vorrichtung 1 zum Öffnen eines Zuführventils - das Ventilelement 2, insbesondere nur dessen Kontaktbereich 3, von dem Ventilsitz 4 abhebt, so daß das Ventil der Vorrichtung 1 geöffnet und eine Ausgabe des Fluids ermöglicht wird. Bei Unterschreiten eines gewissen Drucks schließt das Ventil vorzugsweise selbsttätig, indem die Rückstellkräfte eine Wiederanlage des Ventilelements 2 bzw. dessen Kontaktbereichs 3 an dem Ventilsitz 4 bewirken.The valve may be opened as needed by manual operation or the like. In the illustrated example, the opening of the valve takes place in particular in that the fluid, not shown, with sufficient fluid pressure - especially at low pressures of the device 1 for opening a supply valve - the valve element 2, in particular only the contact area 3, lifts off from the valve seat 4, so that the valve the device 1 is opened and an output of the fluid is made possible. Falls below a certain pressure, the valve closes preferably automatically, by the restoring forces cause reinvestment of the valve element 2 and its contact area 3 on the valve seat 4.

Das Ventilelement 2 besteht aus thermoplastischem Silikon. Über die normalen elastischen Eigenschaften eine Silikons hinaus ist das Silikon thermoplastisch. Insbesondere handelt es sich um ein Copolymer, wie ein ein zweiphasig aufgebautes Blockcopolymer, ganz besonders bevorzugt um ein Polydimethylsiloxan-Harnstoff-Copplymer. Die Shore-A-Härte des Silikons beträgt vorzugsweise 40 bis 100, insbesondere 60 bis 100 (Messung gemäß DIN 53505).The valve element 2 is made of thermoplastic silicone. Beyond the normal elastic properties of a silicone, the silicone is thermoplastic. In particular, it is a copolymer, such as a two-phase built block copolymer, most preferably a polydimethylsiloxane urea Copplymer. The Shore A hardness of the silicone is preferably 40 to 100, in particular 60 to 100 (measurement according to DIN 53505).

Der Einsatz von thermoplastischem Silikon gestattet eine wesentliche Vereinfachung der Herstellung. Insbesondere können die für die sonstigen Komponenten wie das Teil 5 oder den Ventilsitz 4, verwendeten Spritzgußformen, Spritzmaschinen oder dgl. auch zur Herstellung des Ventilelements 2 verwendet werden. Insbesondere erfordert das thermoplastische Silikon im Gegensatz zu herkömmlichem Silikon kein Arbeiten bei wesentlich höheren Temperaturen, kein Verarbeiten von zwei Komponenten zur Herstellung des Silikons und kein (wesentliches) Aushärten nach der Formgebung.The use of thermoplastic silicone allows a significant simplification of the production. In particular, the injection molds, injection molding machines or the like used for the other components such as the part 5 or the valve seat 4 can also be used for producing the valve element 2. In particular, unlike conventional silicone, the thermoplastic silicone does not require working at much higher temperatures, no processing of two components to make the silicone and no (substantial) curing after molding.

Vielmehr gestattet das thermoplastische Silikon die Spritzguß-Herstellung auch dünnwandiger, elastischer Ventilelemente 2 bei einer Verarbeitungstemperatur von vorzugsweise 140°C bis 250°C.Rather, the thermoplastic silicone allows the injection molding of thin-walled, elastic valve elements 2 at a processing temperature of preferably 140 ° C to 250 ° C.

Beim Darstellungsbeispiel ist das Ventilelement 2 zumindest im wesentlichen scheibenartig ausgebildet, wobei der Eingriffsabschnitt 6 und ggf. weitere nicht dargestellte Eingriffselemente, die in Durchbrechungen 8 am Teil 5 eingreifen, eine sichere Befestigung des Ventilelements 2 am Teil 5 sicherstellen. Insbesondere ist das Ventilelement 2 nach dem Anspritzen unlösbar mit dem Teil 5 verbunden. Trotz des unmittelbaren Anspritzens kann sich das Ventilelement 2 in den gewünschten Bereichen, insbesondere mit seinem Kontaktbereich 3, zum Öffnen des Ventils von dem Teil 5 bzw. Ventilsitz 4 trennen oder abheben. Dies ist ein besonderer Aspekt und Vorteil des thermoplastischen Silikons. Dieses verbindet sich nämlich nicht beim Anspritzen unmittelbar mit dem Material des Teils 5.In the illustrated example, the valve element 2 is formed at least substantially disc-like, wherein the engaging portion 6 and possibly other engagement elements, not shown, which engage in openings 8 on the part 5, ensure secure attachment of the valve element 2 on part 5. In particular, the valve element 2 is inextricably connected to the part 5 after injection. Despite the direct injection molding, the valve element 2 in the desired areas, in particular with its contact area 3, for opening the valve from the part 5 or valve seat 4 separate or stand out. This is a particular aspect and advantage of the thermoplastic silicone. This does not connect directly with the injection of the material of the part 5.

Die Vorrichtung 1 kann einen Pumpraum aufweisen, der vorzugsweise vom Teil 5 zumindest teilweise begrenzt oder gebildet ist. Insbesondere ist dann Fluid aus dem Pumpraum durch manuelles Verformen des Teils 5, insbesondere durch Niederdrücken, über das von dem Kontaktbereich 3 und Ventilsitz 4 gebildete Ventil abgebbar. Das Teil 5 ist hierzu dann entsprechend elastisch verformbar ausgebildet. Anschließend kann Fluid wieder in den Pumpraum durch vorzugsweise selbsttätiges elastisches Rückstellen des Teils 5 aufgenommen, insbesondere eingesaugt, werden.The device 1 may have a pumping space, which is preferably at least partially bounded or formed by the part 5. In particular, fluid can then be dispensed from the pump chamber by manual deformation of the part 5, in particular by depression, via the valve formed by the contact region 3 and valve seat 4. The part 5 is then formed correspondingly elastically deformable. Subsequently, fluid can be taken up again into the pump chamber by preferably automatically resetting the elastic part 5, in particular sucked in.

Gemäß einer nicht dargestellten Ausrührungsvariante kann das Ventilelement 2 auch separat unabhängig vom Ventilsitz 4 / Teil 5 hergestellt, insbesondere spritzgegossen, sein und ggf. damit im montierten Zustand nicht fest verbunden werden. Alternativ oder zusätzlich kann das thermoplastische Silikon mit seinen überragenden Eigenschaften auch für ein sonstiges, insbesondere spritzgegossenes Teil der Vorrichtung 1 im genannten Sinne verwendet werden. According to a Ausrührungsvariante not shown, the valve element 2 can also be made separately, in particular injection molded, independently of the valve seat 4 / part 5, and possibly not be firmly connected in the mounted state. Alternatively or additionally, the thermoplastic silicone with its outstanding properties can also be used for another, in particular injection-molded, part of the device 1 in the aforementioned sense.

Claims (14)

  1. Device (1) for dispensing a preferably cosmetic fluid, with an elastically deformable valve element (2) and with an associated valve seat (4), wherein the valve element (2) consists of thermoplastic silicone,
    characterized in
    that the valve seat (4) is formed by an elastically deformable part (5) of the device (1).
  2. Device according to claim 1, characterized in that the valve element (2) is injection-molded, particularly injection-molded, directly against the valve seat (4) or another part (5) of the device (1), particularly the part (5) forming the valve seat (4).
  3. Device according to one of the foregoing claims, characterized in that the valve element (2) is elastically pretensioned against the valve seat (4).
  4. Device according to one of the foregoing claims, characterized in that the valve element (2) is designed to be self-closing.
  5. Device according to one of the foregoing claims, characterized in that the valve element (2) can be opened by manual actuation and/or pressure of the fluid.
  6. Device according to one of the foregoing claims, characterized in that the valve element (4) is fastened by force-fit and/or form-fit to the device (1) or its part (5), particularly by means of at least one engagement part (6).
  7. Device according to one of the foregoing claims, characterized in that the silicone is a copolymer, preferably a two-phase-constructed block copolymer, particularly a polydimethyl siloxane urea copolymer.
  8. Device according to one of the foregoing claims, characterized in that the silicone has a Shore A hardness of 60 to 100.
  9. Device according to one of the foregoing claims, characterized in that the valve seat (4) consists of a thermoplast, preferably a polyolefin, particularly polypropylene.
  10. Device according to one of the foregoing claims, characterized in that the valve seat (4) is injection-molded.
  11. Device as set forth in one of the foregoing claims, characterized in that the valve seat (4) is formed by an elastically deformable, preferably one-piece part (5) of the device (1).
  12. Device according to one of the foregoing claims, characterized in that the device (1) has a pump chamber which is delimited or formed at least partially by a part (5) of the device (1), particularly wherein fluid can be dispensed from the pump chamber through manual deformation of the part (5) and can be subsequently taken up, particularly sucked, into the pump chamber through preferably self-actuating elastic resetting of the part (5).
  13. Device according to one of the foregoing claims, characterized in that the valve element (2) forms, particularly together with the valve seat (4), an inlet, delivery, one-way or dispenser valve for the Fluid.
  14. Device according to one of the foregoing claims, characterized in that the device (1) is designed as a dispenser head, manually actuated pump or dispenser.
EP06753620A 2005-05-31 2006-05-15 Device for dispensing a preferably cosmetic fluid Not-in-force EP1885614B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005025371A DE102005025371A1 (en) 2005-05-31 2005-05-31 Device for dispensing a preferably cosmetic fluid
PCT/EP2006/004554 WO2006128574A1 (en) 2005-05-31 2006-05-15 Device for dispensing a preferably cosmetic fluid

Publications (2)

Publication Number Publication Date
EP1885614A1 EP1885614A1 (en) 2008-02-13
EP1885614B1 true EP1885614B1 (en) 2010-09-08

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EP06753620A Not-in-force EP1885614B1 (en) 2005-05-31 2006-05-15 Device for dispensing a preferably cosmetic fluid

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US (1) US20080197152A1 (en)
EP (1) EP1885614B1 (en)
AT (1) ATE480470T1 (en)
DE (2) DE102005025371A1 (en)
ES (1) ES2352076T3 (en)
WO (1) WO2006128574A1 (en)

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Also Published As

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US20080197152A1 (en) 2008-08-21
DE102005025371A1 (en) 2006-12-07
DE502006007850D1 (en) 2010-10-21
EP1885614A1 (en) 2008-02-13
ATE480470T1 (en) 2010-09-15
ES2352076T3 (en) 2011-02-15
WO2006128574A1 (en) 2006-12-07

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