EP1792841A1 - Closure device for a dispenser - Google Patents

Closure device for a dispenser Download PDF

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Publication number
EP1792841A1
EP1792841A1 EP06020920A EP06020920A EP1792841A1 EP 1792841 A1 EP1792841 A1 EP 1792841A1 EP 06020920 A EP06020920 A EP 06020920A EP 06020920 A EP06020920 A EP 06020920A EP 1792841 A1 EP1792841 A1 EP 1792841A1
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EP
European Patent Office
Prior art keywords
closure element
element according
piston
channel
insert body
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.)
Granted
Application number
EP06020920A
Other languages
German (de)
French (fr)
Other versions
EP1792841B1 (en
Inventor
Michael Horn
Rüdiger Belau
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.)
Lindal Ventil GmbH
Original Assignee
Lindal Ventil GmbH
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Filing date
Publication date
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Publication of EP1792841A1 publication Critical patent/EP1792841A1/en
Application granted granted Critical
Publication of EP1792841B1 publication Critical patent/EP1792841B1/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
    • 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
    • B65D83/16—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 characterised by the actuating means
    • B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
    • 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
    • B65D47/2062—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 in which the deformation raises or lowers the valve stem
    • B65D47/2075—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 in which the deformation raises or lowers the valve stem in which the stem is raised by the pressure of the contents and thereby opening the valve
    • 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

Definitions

  • a dispenser may be a pressure vessel provided with a dispensing valve, particularly for dispensing media such as gel, cream, paste and the like. Also, the dispenser may be formed as an elastic container in which the medium is discharged on pressure. Suitable media are pasty, viscous, foam-forming and / or flowable media.
  • the dispensing head which prevents the re-foaming and drying of remaining in the spout after actuation of the dispensing valve filling.
  • the dispensing head consists of an outer closure spout with a jacket part, which tapers towards an outlet opening.
  • Slidably disposed in the shell part is a shaft-shaped closure body which is mounted by means of an elastic membrane in a base part of the closure spout.
  • the dispensing head is provided for a tilt valve in which a space within the closure spout fills with the medium and removes the closure body from the outlet via the membrane.
  • a closure system in which also a shaft-shaped closure body is arranged in an outlet opening of the closure system.
  • the closure body has a membrane held in the closure system.
  • a chamber is filled, so that a pressure is exerted on the membrane to withdraw the closure body from the outlet opening.
  • the dispenser assembly has a one-piece cap body made of plastic, on the underside of which a cooperating with the dispensing valve of the pressure pack actuating portion is attached and which has a channel. Further, a cup-shaped first insert body made of plastic is provided which has a cylindrical peripheral wall which is insertable into a matching recess of the skirt in the cap body. Further, a second insert body is provided with a ring-cylindrical portion. The annular cylindrical portion is disposed between the peripheral wall of the first insertion body and a stopper surface of the cap body.
  • the second insert body further has a circular flexible membrane formed on the front end of the annular cylindrical portion and having a pin formed on the front side of the diaphragm.
  • the pin engages under the spring bias of the membrane sealingly into the discharge opening.
  • a chamber is formed, which is in constant communication with the channel of the actuating portion and is bounded on one side by the membrane.
  • the diaphragm is dimensioned such that upon actuation of the dispensing valve, it is deformed backward by the pressure in the chamber and removes the pin from the dispensing opening. If the pressure in the chamber decreases, the second insert body is pushed back into the outlet opening through the membrane.
  • the invention has for its object to provide a closure element, in particular in pasty media with simple means effectively prevents afterflow and drying of the medium in the outlet opening.
  • the closure element is intended for a dispenser, which is particularly suitable for the discharge of pasty media.
  • the closure member has an insert body and a piston member.
  • the insert body has an outlet channel and an outlet opening for the medium to be discharged.
  • a sealing element is used in the region of the outlet opening, which forms a circumferential piston seat.
  • the piston member has a cooperating with the piston seat piston head and at least one elastic strut.
  • the piston element extends in the outlet channel of the insertion body, the piston head being arranged on the side facing the outlet opening in the outlet channel and the at least one strut being arranged in a widening channel section of the outlet channel.
  • the piston element extends through the sealing element in the outlet channel and preferably ends flush with the outlet opening of the insert body.
  • the piston head is biased by the at least one strut sealing against the piston seat and is pressed by escaping medium in the direction of the outlet opening of the piston seat.
  • Piston member not sealingly into the outlet opening, but acts together sealingly with a piston seat forming sealing element in the outlet channel.
  • the piston head is moved in the direction of the outlet opening when the medium is to escape.
  • previous solutions always make sure that the piston element is withdrawn from the outlet opening in the outlet channel.
  • the insertion body has a substantially cylindrical shape, in which the outlet channel extends along the cylinder longitudinal axis.
  • the outlet channel has a constant diameter in a first channel section which opens into the outlet opening.
  • the sealing element is inserted into the first channel section.
  • sealing element and insert body are integrally formed.
  • a two-component injection molding method is preferably used, wherein the sealing element is made of a soft, good sealing material.
  • the piston seat is preferably formed by an inner wall of the sealing element, which cooperates with the piston head along the circumference.
  • the sealing element forming the piston seat is made of a soft material.
  • the insert body is inserted into a recess in the dispenser, wherein the channel of the dispenser for the medium to be discharged opens into the outlet channel.
  • the insert body is preferably held in a press fit in the recess. At this The embodiment thus forms the insertion body with the outlet channel, the outlet opening for the medium, the insert body preferably protruding from an apron of the dispenser.
  • the piston head has a conical intermediate portion which opens into a cylindrical shaft.
  • the outer diameter of the shaft is smaller than the inner diameter of the piston seat.
  • the shaft has at least one elastic strut.
  • two, three or four struts are provided on the piston element.
  • the struts are at an angle away from the piston head from the shaft, each strut has at its free end a kinked portion which abuts substantially flat against the conical inner wall in the outlet channel.
  • the struts are dimensioned such that the restoring force generated by them pushes the piston head sealingly into the piston seat and can be pushed out of the piston seat by the medium to be discharged from the piston head.
  • the dispenser is provided with a dispensing valve pressure vessel.
  • the valve is actuated via a spray cap.
  • the actuating portion of the spray cap protrudes into the interior space, wherein the channel of the spray cap extends centrally from an inlet opening along a central longitudinal axis of the spray cap and is angled at 90 ° C.
  • the actuating element preferably has near the inlet opening in the side wall an opening through which the medium to be discharged from the valve enters the channel.
  • the piston element with its elastic struts is preferably made of an acetal copolymer (POM).
  • POM acetal copolymer
  • the piston seat is made of an elastomer that is softer than the acetal copolymer of the piston member.
  • two additional sealing parts may be provided of a soft elastomer.
  • Fig. 1 shows a one-piece spray cap 10 made of plastic.
  • the spray cap 10 has on its upper side a corrugated pressure pad 12 and a substantially cylindrically encircling outer wall 14. Via a peripheral shoulder 16, a second circumferential wall portion 18 connects, which has a larger circumference than the upper wall portion.
  • the spray cap 10 has a cylindrical recess 20 which receives the insert body 22.
  • the recess 20 has a circumferential recess 24, which facilitates insertion of the insertion body 22.
  • the channel portion 26 which extends in the radial direction to the spray cap 10 opens.
  • the channel section 26 is connected to the channel 28, which runs in the center of the spray cap 10 along the central longitudinal axis. From Fig. 1 it can be seen that the bent channel portion 26 has a significantly larger diameter than the channel portion 28. It can also be seen in FIG. 1 that the channel section 26 protrudes into the channel section 28 in a region 30 and reduces the diameter in the channel section 28 in the transition region of the section 26.
  • the cylindrical wall 32 of the channel portion 28 has at its free end an opening 34th
  • the spray cap 10 has a peripheral edge which is reinforced by a shoulder 38. Furthermore, 10 ribs 40 are provided in the spray cap, which protrude radially inwardly into the spray cap 10 and form a contact edge 42 for the dome of the valve.
  • the closure element has an insert body 22 with a cylindrical outer wall and a longitudinally extending outlet channel.
  • the outlet channel has a first cylindrical channel portion 44, which opens into the outlet opening 46.
  • the insert body 22 projects from the recess 20 and the skirt wall 14.
  • a sealing element 48 is formed, which forms the piston seat.
  • the sealing element 48 is produced by means of a 2-component injection molding process in the illustrated embodiment of a second material. In contrast to a hard POM material, a soft elastomer is used for the sealing element.
  • the sealing element 48 has a seating area 49, which is seated on a projecting shoulder 50 in the outlet channel.
  • the sealing element 48 also has a sealing lip 53, whose inner wall forms the piston seat.
  • the circumferential sealing lip 53 has an outer diameter which is smaller than the inner diameter of the first channel section and also smaller than the outer diameter of the seat portion 49. Also, the inner diameter of the sealing lip is smaller than the flared inner diameter of the outlet channel.
  • the inner wall of the sealing lips has rounded edges. The sealing lips are resiliently against the piston head and thus form the piston seat.
  • a channel section 51 connects, the diameter of which widens conically.
  • the conically widening channel section 51 merges into a cylindrical section 52 at its end pointing away from the sealing element 48.
  • the outer wall of the insert body 22 has a beveled circumferential edge 54 which cooperates with the recess 24 of the recess 20 during insertion.
  • the piston member 56 is shown.
  • the piston element 56 has a cylindrical piston head 58 with a conical transition surface 60.
  • the shaft 62 adjoins the piston head 58 with its transition surface 60.
  • the shaft 62 has over the piston head 58 projecting struts 64.
  • two struts 64 are visible.
  • the medium between the spring struts in the conical portion of the outlet channel In this case, a force is exerted both on the shaft and on the transition surface 60 of the valve head, which press the piston element in the direction of the outlet opening 46.
  • a force is exerted on the pressure surface 12 with a component in the longitudinal direction. Via the duct wall 32, a force is exerted on a valve 68.
  • the valve 68 is shown in Fig. 1 by way of example only as a female valve. There is also the possibility to form the actuating portion of the spray cap for a male valve.
  • the medium With the pressure opens the valve, the medium enters from the container into the channel 28 and is deflected there in the bent channel portion 26. Due to the pressure of the medium, the piston head 58 is pressed against the force of the spring legs 64 out of contact with the sealing element.
  • the closure element described can be used in any type of dispensers for discharging a medium. Both in pressure vessels with valve as well as manually squeezable containers, the closure element is suitable. For use, it is only necessary that no pressure is applied to the piston in the idle state and the medium exits the exit channel at a certain pressure when exiting. This pressure must be greater than the restoring force exerted by the struts.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Coating Apparatus (AREA)
  • Telephone Function (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

The hood has a body comprising channels and an operating section (32) that cooperates with a delivery valve. An outlet channel is provided for delivering a pasty media e.g. gel. A sealing unit that forms a piston seat is arranged in the outlet channel. A compression lug is arranged in an extending channel section of the outlet channel. A piston head is pre-stressed against the piston seat and is pressed by the medium.

Description

Die vorliegende Erfindung betrifft ein Verschlußelement für einen Dispenser. Ein Dispenser kann ein mit einem Abgabeventil versehener Druckbehälter sein, insbesondere zum Austragen von Medien, wie Gel, Creme, Paste und dergleichen. Ebenfalls kann der Dispenser als ein elastischer Behälter ausgebildet sein, bei dem auf Druck das Medium ausgetragen wird. Als Medien kommen pastöse, viskose, schaumbildende und/oder fließfähige Medien in Betracht.The present invention relates to a closure element for a dispenser. A dispenser may be a pressure vessel provided with a dispensing valve, particularly for dispensing media such as gel, cream, paste and the like. Also, the dispenser may be formed as an elastic container in which the medium is discharged on pressure. Suitable media are pasty, viscous, foam-forming and / or flowable media.

DE 44 44 399 A1 beschreibt einen Ausgabekopf, der das Nachschäumen und Austrocknen von in der Tülle nach dem Betätigen des Abgabeventils zurückbleibendem Füllgut verhindert. Der Ausgabekopf besteht hierzu aus einer äußeren Verschlußtülle mit einem Mantelteil, das sich zu einer Ausgabeöffnung hin verjüngt. In dem Mantelteil verschieblich ist ein schaftförmiger Verschlußkörper angeordnet, der mittels einer elastischen Membran in einem Sockelteil der Verschlußtülle gelagert ist. Der Ausgabekopf ist für ein Kippventil vorgesehen, bei dem sich ein Zwischenraum innerhalb der Verschlußtülle mit dem Medium füllt und über die Membran den Verschlußkörper aus der Austrittsöffnung entfernt. DE 44 44 399 A1 describes a dispensing head which prevents the re-foaming and drying of remaining in the spout after actuation of the dispensing valve filling. For this purpose, the dispensing head consists of an outer closure spout with a jacket part, which tapers towards an outlet opening. Slidably disposed in the shell part is a shaft-shaped closure body which is mounted by means of an elastic membrane in a base part of the closure spout. The dispensing head is provided for a tilt valve in which a space within the closure spout fills with the medium and removes the closure body from the outlet via the membrane.

Aus Patent Abstracts of Japan zu JP 07052980 A ist ein Verschlußsystem bekannt, bei dem ebenfalls ein schaftförmiger Verschlußkörper in einer Austrittsöffnung des Verschlußsystems angeordnet ist. Der Verschlußkörper besitzt eine Membran, die in dem Verschlußsystem gehalten ist. Durch das austretende Medium wird eine Kammer gefiillt, so daß ein Druck auf die Membran ausgeübt wird, um den Verschlußkörper aus der Austrittsöffnung zurückzuziehen.From Patent Abstracts of Japan to JP 07052980 A a closure system is known in which also a shaft-shaped closure body is arranged in an outlet opening of the closure system. The closure body has a membrane held in the closure system. By the exiting medium, a chamber is filled, so that a pressure is exerted on the membrane to withdraw the closure body from the outlet opening.

Aus DE 20307819.5 ist eine Spenderanordnung für ein Abgabeventil bekannt geworden. Die Spenderanordnung besitzt einen einteiligen Kappenkörper aus Kunststoff, an dessen Unterseite ein mit dem Abgabeventil der Druckpackung zusammenwirkender Betätigungsabschnitt angebracht ist und das einen Kanal aufweist. Ferner ist ein napfförmiger erster Einsetzkörper aus Kunststoff vorgesehen, der eine zylindrische Umfangswand besitzt, die in eine passende Ausnehmung der Schürze in den Kappenkörper einsetzbar ist. Ferner ist ein zweiter Einsetzkörper mit einem ringzylindrischen Abschnitt vorgesehen. Der ringzylindrische Abschnitt ist zwischen der Umfangswand des erstens Einsetzkörpers und einer Anschlagfläche des Kappenkörpers angeordnet. Der zweite Einsetzkörper besitzt ferner eine kreisförmige flexible Membran, die an dem vorderen Ende des ringzylindrischen Abschnitts angeformt ist und einen an der Vorderseite der Membran angeformten Stift besitzt. Der Stift greift unter der Federvorspannung der Membran dichtend in die Abgabeöffnung ein. Zwischen erstem und zweitem Einsetzkörper ist eine Kammer gebildet, die in ständiger Verbindung mit dem Kanal des Betätigungsabschnitts steht und an einer Seite durch die Membran begrenzt wird. Die Membran ist derart dimensioniert, daß bei Betätigung des Abgabeventils diese vom Druck in der Kammer nach hinten verformt wird und den Stift aus der Abgabeöffnung entfernt. Läßt der Druck in der Kammer nach, so wird durch die Membran der zweite Einsetzkörper wieder in die Austrittsöffnung vorgeschoben.Out DE 20307819.5 a donor assembly for a dispensing valve has become known. The dispenser assembly has a one-piece cap body made of plastic, on the underside of which a cooperating with the dispensing valve of the pressure pack actuating portion is attached and which has a channel. Further, a cup-shaped first insert body made of plastic is provided which has a cylindrical peripheral wall which is insertable into a matching recess of the skirt in the cap body. Further, a second insert body is provided with a ring-cylindrical portion. The annular cylindrical portion is disposed between the peripheral wall of the first insertion body and a stopper surface of the cap body. The second insert body further has a circular flexible membrane formed on the front end of the annular cylindrical portion and having a pin formed on the front side of the diaphragm. The pin engages under the spring bias of the membrane sealingly into the discharge opening. Between the first and second Einsetzkörper a chamber is formed, which is in constant communication with the channel of the actuating portion and is bounded on one side by the membrane. The diaphragm is dimensioned such that upon actuation of the dispensing valve, it is deformed backward by the pressure in the chamber and removes the pin from the dispensing opening. If the pressure in the chamber decreases, the second insert body is pushed back into the outlet opening through the membrane.

Der Erfindung liegt die Aufgabe zugrunde, ein Verschlußelement bereitzustellen, das insbesondere bei pastösen Medien mit einfachen Mitteln wirkungsvoll ein Nachströmen und Antrocknen des Mediums in der Austrittsöffnung verhindert.The invention has for its object to provide a closure element, in particular in pasty media with simple means effectively prevents afterflow and drying of the medium in the outlet opening.

Erfindungsgemäß wird die Aufgabe durch ein Verschlußelement mit den Merkmalen aus Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen bilden die Gegenstände der Unteransprüche.According to the invention the object is achieved by a closure element with the features of claim 1. Advantageous embodiments form the subject of the dependent claims.

Erfindungsgemäß ist das Verschlußelement für einen Dispenser bestimmt, der insbesondere zum Austrag von pastösen Medien geeignet ist. Das Verschlußelement besitzt einen Einsetzkörper und ein Kolbenelement. Der Einsetzkörper weist einen Austrittskanal und eine Austrittsöffnung für das auszutragende Medium auf. In dem Austrittskanal ist in dem Bereich der Austrittsöffnung ein Dichtelement eingesetzt, das einen umlaufenden Kolbensitz bildet. Das Kolbenelement besitzt einen mit dem Kolbensitz zusammenwirkenden Kolbenkopf und mindestens ein elastisches Federbein. Erfindungsgemäß verläuft das Kolbenelement in dem Austrittskanal des Einsetzkörpers, wobei der Kolbenkopf auf der zur Austrittsöffnung weisenden Seite in dem Austrittskanal angeordnet ist und das mindestens eine Federbein in einem sich erweiternden Kanalabschnitt des Austrittskanals angeordnet ist. Das Kolbenelement verläuft in dem Austrittskanal durch das Dichtelement und schließt bevorzugt bündig mit der Austrittsöffnung des Einsetzkörpers ab. Der Kolbenkopf ist durch das mindestens eine Federbein dichtend gegen den Kolbensitz vorgespannt und wird durch austretendes Medium in Richtung der Austrittsöffnung aus dem Kolbensitz gedrückt. Im Unterschied zu den aus dem Stand der Technik bekannten Kolbenelementen, die eine Austrittsöffnung verschließen, greift bei der erfindungsgemäßen Lösung das Kolbenelement nicht dichtend in die Austrittsöffnung ein, sondern wirkt dichtend mit einem den Kolbensitz bildenden Dichtelement in dem Austrittskanal zusammen. Ferner wird der Kolbenkopf in Richtung der Austrittsöffnung bewegt, wenn das Medium austreten soll. Im Gegensatz dazu stellen bisherige Lösungen stets darauf ab, daß das Kolbenelement aus der Austrittsöffnung in dem Austrittskanal zurückgezogen wird.According to the invention the closure element is intended for a dispenser, which is particularly suitable for the discharge of pasty media. The closure member has an insert body and a piston member. The insert body has an outlet channel and an outlet opening for the medium to be discharged. In the outlet channel, a sealing element is used in the region of the outlet opening, which forms a circumferential piston seat. The piston member has a cooperating with the piston seat piston head and at least one elastic strut. According to the invention, the piston element extends in the outlet channel of the insertion body, the piston head being arranged on the side facing the outlet opening in the outlet channel and the at least one strut being arranged in a widening channel section of the outlet channel. The piston element extends through the sealing element in the outlet channel and preferably ends flush with the outlet opening of the insert body. The piston head is biased by the at least one strut sealing against the piston seat and is pressed by escaping medium in the direction of the outlet opening of the piston seat. In contrast to the known from the prior art piston elements which close an outlet opening engages in the inventive solution Piston member not sealingly into the outlet opening, but acts together sealingly with a piston seat forming sealing element in the outlet channel. Further, the piston head is moved in the direction of the outlet opening when the medium is to escape. In contrast, previous solutions always make sure that the piston element is withdrawn from the outlet opening in the outlet channel.

In einer bevorzugten Ausgestaltung des erfindungsgemäßen Verschlußelements besitzt der Einsetzkörper eine im wesentlichen zylindrische Form, bei der sich der Austrittskanal entlang der Zylinderlängsachse erstreckt. Der Austrittskanal besitzt in einem ersten Kanalabschnitt, der in die Austrittsöffnung mündet, einen konstanten Durchmesser. In einer möglichen Ausgestaltung ist das Dichtelement in den ersten Kanalabschnitt eingesetzt. In einer bevorzugten Ausgestaltung sind Dichtelement und Einsetzkörper einstückig ausgebildet. Hierzu wird bevorzugt ein 2-Komponenten-Spritzgußverfahren eingesetzt, wobei das Dichtelement aus einem weichen, gut abdichtenden Material hergestellt ist. Der Kolbensitz wird bevorzugt durch eine Innenwandung des Dichtelements gebildet, die mit dem Kolbenkopf entlang dem Umfang zusammenwirkt. Vorzugsweise ist das den Kolbensitz bildende Dichtelement aus einem weichen Material hergestellt.In a preferred embodiment of the closure element according to the invention, the insertion body has a substantially cylindrical shape, in which the outlet channel extends along the cylinder longitudinal axis. The outlet channel has a constant diameter in a first channel section which opens into the outlet opening. In one possible embodiment, the sealing element is inserted into the first channel section. In a preferred embodiment, sealing element and insert body are integrally formed. For this purpose, a two-component injection molding method is preferably used, wherein the sealing element is made of a soft, good sealing material. The piston seat is preferably formed by an inner wall of the sealing element, which cooperates with the piston head along the circumference. Preferably, the sealing element forming the piston seat is made of a soft material.

In einer bevorzugten Ausgestaltung ist der Einsetzkörper in einer Ausnehmung in den Dispenser eingesetzt, wobei der Kanal des Dispensers für das auszutragende Medium in den Austrittskanal mündet. Der Einsetzkörper ist bevorzugt in einem Preßsitz in der Ausnehmung gehalten. Bei dieser Ausgestaltung bildet also der Einsetzkörper mit dem Austrittskanal die Austrittsöffnung für das Medium, wobei der Einsetzkörper vorzugsweise aus einer Schürze des Dispensers vorsteht.In a preferred embodiment, the insert body is inserted into a recess in the dispenser, wherein the channel of the dispenser for the medium to be discharged opens into the outlet channel. The insert body is preferably held in a press fit in the recess. At this The embodiment thus forms the insertion body with the outlet channel, the outlet opening for the medium, the insert body preferably protruding from an apron of the dispenser.

Der Kolbenkopf besitzt einen kegelförmigen Zwischenabschnitt, der in einen zylindrischen Schaft mündet. Der Außendurchmesser des Schafts ist kleiner als der Innendurchmesser des Kolbensitzes. An dem dem Kolbenkopf gegenüberliegenden Ende besitzt der Schaft mindestens ein elastisches Federbein. Bevorzugt sind zwei, drei oder vier Federbeine an dem Kolbenelement vorgesehen. Die Federbeine stehen unter einem vom Kolbenkopf fortweisenden Winkel von dem Schaft ab, wobei jedes Federbein an seinem freien Ende einen abknickenden Abschnitt besitzt, der im wesentlichen flach an der konischen Innenwand in dem Austrittskanal anliegt. Die Federbeine sind derart dimensioniert, daß die von ihnen erzeugte Rückstellkraft den Kolbenkopf dichtend in den Kolbensitz drückt und durch das auszutragende Medium der Kolbenkopf aus dem Kolbensitz herausgedrückt werden kann.The piston head has a conical intermediate portion which opens into a cylindrical shaft. The outer diameter of the shaft is smaller than the inner diameter of the piston seat. At the end opposite the piston head, the shaft has at least one elastic strut. Preferably, two, three or four struts are provided on the piston element. The struts are at an angle away from the piston head from the shaft, each strut has at its free end a kinked portion which abuts substantially flat against the conical inner wall in the outlet channel. The struts are dimensioned such that the restoring force generated by them pushes the piston head sealingly into the piston seat and can be pushed out of the piston seat by the medium to be discharged from the piston head.

In einer möglichen Ausgestaltung ist der Dispenser ein mit einem Abgabeventil versehener Druckbehälter. Betätigt wird das Ventil über eine Sprühkappe. Der Betätigungsabschnitt der Sprühkappe steht in den Innenraum vor, wobei der Kanal der Sprühkappe von einer Eintrittsöffnung aus sich zentral entlang einer Mittellängsachse der Sprühkappe erstreckt und um 90 °C abgewinkelt ist. Das Betätigungselement besitzt vorzugsweise nahe der Eintrittsöffnung in der Seitenwand eine Durchbrechung, durch die das auszutragende Medium aus dem Ventil in den Kanal eintritt.In one possible embodiment, the dispenser is provided with a dispensing valve pressure vessel. The valve is actuated via a spray cap. The actuating portion of the spray cap protrudes into the interior space, wherein the channel of the spray cap extends centrally from an inlet opening along a central longitudinal axis of the spray cap and is angled at 90 ° C. The actuating element preferably has near the inlet opening in the side wall an opening through which the medium to be discharged from the valve enters the channel.

In einer alternativen Ausgestaltung ist der Dispenser als ein elastischer Behälter ausgebildet, der durch Druck auf seine Behälterwand das Medium austrägt. Hierbei kann es sich beispielsweise um eine Flasche mit elastischen Wänden handeln.In an alternative embodiment, the dispenser is designed as an elastic container which discharges the medium by pressure on its container wall. This may be, for example, a bottle with elastic walls.

Das Kolbenelement mit seinen elastischen Federbeinen ist bevorzugt aus einem Acetalcopolymerisat (POM) hergestellt. Für eine verbesserte Abdichtung, insbesondere, wenn der Einsetzkörper in der Verschlußkappe nicht eine 100%ige Kreisform besitzt oder während des Einsetzens verformt wird, ist der Kolbensitz aus einem Elastomer hergestellt, der weicher als das Acetalcopolymerisat des Kolbenelements ist. Alternativ ist es auch möglich, den Kolbenkopf mit seiner Übergangsfläche aus einem weichen Elastomer herzustellen, wobei dann der Einsetzkörper vollständig aus POM besteht. Auch können zwei zusätzliche Dichtungsteile aus einem weichen Elastomer vorgesehen werden.The piston element with its elastic struts is preferably made of an acetal copolymer (POM). For improved sealing, particularly when the insert body in the cap is not 100% circular or deformed during insertion, the piston seat is made of an elastomer that is softer than the acetal copolymer of the piston member. Alternatively, it is also possible to produce the piston head with its transition surface of a soft elastomer, in which case the insert body is made entirely of POM. Also, two additional sealing parts may be provided of a soft elastomer.

Eine bevorzugte Ausgestaltung einer Sprühkappe mit dem erfindungsgemäßen Verschlußelement wird nachfolgend anhand der Figuren erläutert. Es zeigt:

Fig. 1
einen Querschnitt durch die auf ein Ventil aufgesetzte Sprühkappe und
Fig. 2
den Einsetzkörper aus Fig. 1.
A preferred embodiment of a spray cap with the closure element according to the invention is explained below with reference to the figures. It shows:
Fig. 1
a cross section through the patch on a valve spray cap and
Fig. 2
the insert body of FIG. 1.

Fig. 1 zeigt eine einteilige Sprühkappe 10 aus Kunststoff. Die Sprühkappe 10 besitzt an ihrer Oberseite ein geriffeltes Druckfeld 12 und eine im wesentlichen zylindrisch umlaufende Außenwand 14. Über einen umlaufenden Absatz 16 schließt sich ein zweiter umlaufender Wandabschnitt 18 an, der einen größeren Umfang als der obere Wandabschnitt besitzt.Fig. 1 shows a one-piece spray cap 10 made of plastic. The spray cap 10 has on its upper side a corrugated pressure pad 12 and a substantially cylindrically encircling outer wall 14. Via a peripheral shoulder 16, a second circumferential wall portion 18 connects, which has a larger circumference than the upper wall portion.

Die Sprühkappe 10 besitzt eine zylindrische Ausnehmung 20, die den Einsetzkörper 22 aufnimmt. Die Ausnehmung 20 besitzt eine umlaufende Vertiefung 24, die ein Einsetzen des Einsetzkörpers 22 vereinfacht. Am Grund der Ausnehmung 20 mündet der Kanalabschnitt 26, der sich in radialer Richtung zu der Sprühkappe 10 erstreckt. Der Kanalabschnitt 26 ist mit dem Kanal 28, der im Zentrum der Sprühkappe 10 entlang der Mittellängsachse verläuft, verbunden. Aus Fig. 1 ist ersichtlich, daß der abgeknickte Kanalabschnitt 26 einen deutlich größeren Durchmesser als der Kanalabschnitt 28 besitzt. Ebenfalls ist in Fig. 1 zu erkennen, daß der Kanalabschnitt 26 in einem Bereich 30 in den Kanalabschnitt 28 vorsteht und den Durchmesser im Kanalabschnitt 28 im Übergangsbereich des Abschnitts 26 reduziert.The spray cap 10 has a cylindrical recess 20 which receives the insert body 22. The recess 20 has a circumferential recess 24, which facilitates insertion of the insertion body 22. At the bottom of the recess 20, the channel portion 26, which extends in the radial direction to the spray cap 10 opens. The channel section 26 is connected to the channel 28, which runs in the center of the spray cap 10 along the central longitudinal axis. From Fig. 1 it can be seen that the bent channel portion 26 has a significantly larger diameter than the channel portion 28. It can also be seen in FIG. 1 that the channel section 26 protrudes into the channel section 28 in a region 30 and reduces the diameter in the channel section 28 in the transition region of the section 26.

Die zylindrische Wandung 32 des Kanalabschnitts 28 besitzt an ihrem freien Ende eine Durchbrechung 34.The cylindrical wall 32 of the channel portion 28 has at its free end an opening 34th

Auf der der Ausnehmung 20 gegenüberliegenden Seite ist der Absatz 16 mit einer U-förmigen Vertiefung 36 vorgesehen.On the opposite side of the recess 20 of the shoulder 16 is provided with a U-shaped recess 36.

An dem zum Ventil weisenden Ende besitzt die Sprühkappe 10 einen umlaufenden Rand, der durch einen Absatz 38 verstärkt ist. Ferner sind in der Sprühkappe 10 Rippen 40 vorgesehen, die radial einwärts in der Sprühkappe 10 vorstehen und eine Anlagekante 42 für den Dom des Ventils bilden.At the end facing the valve, the spray cap 10 has a peripheral edge which is reinforced by a shoulder 38. Furthermore, 10 ribs 40 are provided in the spray cap, which protrude radially inwardly into the spray cap 10 and form a contact edge 42 for the dome of the valve.

Das erfindungsgemäße Verschlußelement besitzt einen Einsetzkörper 22 mit einer zylindrischen Außenwand und einem sich in Längsrichtung erstreckenden Austrittskanal. Der Austrittskanal besitzt einen ersten zylindrischen Kanalabschnitt 44, der in die Austrittsöffnung 46 mündet. Wie in Fig. 1 dargestellt, steht der Einsetzkörper 22 aus der Ausnehmung 20 und der Schürzenwand 14 vor. In dem ersten Kanalabschnitt 44 ist ein Dichtelement 48 geformt, das den Kolbensitz bildet. Das Dichtelement 48 ist mittels eines 2-Komponenten-Spritzgußverfahrens in dem dargestellten Ausführungsbeispiel aus einem zweiten Werkstoff hergestellt. Im Gegensatz zu einem harten POM-Material wird für das Dichtelement ein weiches Elastomer verwendet. Das Dichtelement 48 besitzt einen Sitzbereich 49, der an einem vorstehenden Absatz 50 in den Austrittskanal aufsitzt. Das Dichtelement 48 weist ferner eine Dichtlippe 53 auf, deren Innenwand den Kolbensitz bildet. Die umlaufende Dichtlippe 53 besitzt einen Außendurchmesser der kleiner als der Innendurchmesser des ersten Kanalabschnitts ist und ebenfalls kleiner als der Außendurchmesser des Sitzbereichs 49. Auch der Innendurchmesser der Dichtlippe ist kleiner als der sich konisch erweiternde Innendurchmesser des Austrittskanals. Die Innenwand der Dichtlippen besitzt abgerundete Kanten. Die Dichtlippen liegen federnd an dem Kolbenkopf an und bilden so den Kolbensitz.The closure element according to the invention has an insert body 22 with a cylindrical outer wall and a longitudinally extending outlet channel. The outlet channel has a first cylindrical channel portion 44, which opens into the outlet opening 46. As shown in FIG. 1, the insert body 22 projects from the recess 20 and the skirt wall 14. In the first channel portion 44, a sealing element 48 is formed, which forms the piston seat. The sealing element 48 is produced by means of a 2-component injection molding process in the illustrated embodiment of a second material. In contrast to a hard POM material, a soft elastomer is used for the sealing element. The sealing element 48 has a seating area 49, which is seated on a projecting shoulder 50 in the outlet channel. The sealing element 48 also has a sealing lip 53, whose inner wall forms the piston seat. The circumferential sealing lip 53 has an outer diameter which is smaller than the inner diameter of the first channel section and also smaller than the outer diameter of the seat portion 49. Also, the inner diameter of the sealing lip is smaller than the flared inner diameter of the outlet channel. The inner wall of the sealing lips has rounded edges. The sealing lips are resiliently against the piston head and thus form the piston seat.

An den Absatz 56 schließt sich ein Kanalabschnitt 51 an, dessen Durchmesser sich konisch erweitert. Der sich konisch erweiternde Kanalabschnitt 51 geht an seinem von dem Dichtelement 48 fortweisenden Ende in einen zylindrischen Abschnitt 52 über. Die Außenwand des Einsetzkörpers 22 besitzt eine abgeschrägte umlaufende Kante 54, die mit der Vertiefung 24 der Ausnehmung 20 beim Einsetzen zusammenwirkt.At the shoulder 56, a channel section 51 connects, the diameter of which widens conically. The conically widening channel section 51 merges into a cylindrical section 52 at its end pointing away from the sealing element 48. The outer wall of the insert body 22 has a beveled circumferential edge 54 which cooperates with the recess 24 of the recess 20 during insertion.

Ferner ist in Fig. 2 das Kolbenelement 56 dargestellt. Das Kolbenelement 56 besitzt einen zylindrischen Kolbenkopf 58 mit einer kegelförmigen Übergangsfläche 60. An den Kolbenkopf 58 mit seiner Übergangsfläche 60 schließt sich der Schaft 62 an. Der Schaft 62 besitzt gegenüber dem Kolbenkopf 58 abstehende Federbeine 64. In dem in Fig. 2 dargestellten Querschnitt sind zwei Federbeine 64 sichtbar. Im Gegensatz zu bekannten Lösungen tritt bei der erfindungsgemäßen Lösung das Medium zwischen den Federbeinen in den konischen Abschnitt des Austrittskanals. Hierbei wird sowohl auf den Schaft als auch auf die Übergangsfläche 60 des Ventilkopfs eine Kraft ausgeübt, die das Kolbenelement in Richtung der Austrittsöffnung 46 drücken.Further, in Fig. 2, the piston member 56 is shown. The piston element 56 has a cylindrical piston head 58 with a conical transition surface 60. The shaft 62 adjoins the piston head 58 with its transition surface 60. The shaft 62 has over the piston head 58 projecting struts 64. In the cross section shown in Fig. 2, two struts 64 are visible. In contrast to known solutions occurs in the inventive solution, the medium between the spring struts in the conical portion of the outlet channel. In this case, a force is exerted both on the shaft and on the transition surface 60 of the valve head, which press the piston element in the direction of the outlet opening 46.

Bei der Betätigung wird eine Kraft mit einer Komponente in Längsrichtung auf die Druckfläche 12 ausgeübt. Über die Kanalwandung 32 wird eine Kraft auf ein Ventil 68 ausgeübt. Das Ventil 68 ist in Fig. 1 lediglich beispielhaft als weibliches Ventil dargestellt. Es gibt auch die Möglichkeit, den Betätigungsabschnitt der Sprühkappe für ein männliches Ventil auszubilden.Upon actuation, a force is exerted on the pressure surface 12 with a component in the longitudinal direction. Via the duct wall 32, a force is exerted on a valve 68. The valve 68 is shown in Fig. 1 by way of example only as a female valve. There is also the possibility to form the actuating portion of the spray cap for a male valve.

Mit dem Druck öffnet das Ventil, das Medium tritt aus dem Behälter in den Kanal 28 ein und wird dort in den abgeknickten Kanalabschnitt 26 umgelenkt. Durch den Druck des Mediums wird der Kolbenkopf 58 gegen die Kraft der Federbeine 64 aus der Anlage mit dem Dichtelement gedrückt.With the pressure opens the valve, the medium enters from the container into the channel 28 and is deflected there in the bent channel portion 26. Due to the pressure of the medium, the piston head 58 is pressed against the force of the spring legs 64 out of contact with the sealing element.

Läßt der Druck auf das Druckfeld 12 nach, schließt das Ventil und das Kolbenelement 56 wird nicht länger aus dem Kolbensitz gedrückt. Durch die Wirkung der Federbeine kehrt der Kolbenkopf 58 in seine dichtende Position zurück. Ein Nachschäumen und das Antrocknen von dem ausgetretenen Medium wird auf diese Weise wirksam verhindert. Durch die bündige Anordnung des Kolbenkopfs werden Rückstände von der Betätigung im Bereich der Austrittsöffnung vermieden.If the pressure on the pressure field 12 leaves, the valve closes and the piston element 56 is no longer pressed out of the piston seat. Due to the action of the struts, the piston head 58 returns to its sealing position. Re-foaming and the drying of the leaked medium is effectively prevented in this way. The flush arrangement of the piston head residues are avoided by the operation in the region of the outlet opening.

Das beschriebene Verschlußelement kann bei jeder Art von Dispensern zum Austragen eines Mediums eingesetzt werden. Sowohl bei Druckbehältern mit Ventil als auch bei manuell zu quetschenden Behältern ist das Verschlußelement geeignet. Für die Verwendung ist es lediglich erforderlich, daß im Ruhezustand kein Druck an dem Kolben anliegt und das Medium beim Austreten unter einem gewissen Druck den Austrittskanal verläßt. Dieser Druck muß größer sein, als die von den Federbeinen ausgeübte rückstellende Kraft.The closure element described can be used in any type of dispensers for discharging a medium. Both in pressure vessels with valve as well as manually squeezable containers, the closure element is suitable. For use, it is only necessary that no pressure is applied to the piston in the idle state and the medium exits the exit channel at a certain pressure when exiting. This pressure must be greater than the restoring force exerted by the struts.

Claims (21)

Verschlußelement für einen Dispenser zum Austrag eines Mediums, mit: - einem Einsetzkörper (22), der einen Austrittskanal (44, 50, 52) und eine Austrittsöffnung (46) für das auszutragende Medium aufweist, und - einem Kolbenelement (56), das einen mit einem Kolbensitz (59) zusammenwirkenden Kolbenkopf (58) und mindestens ein elastisches Federbein (64) aufweist, dadurch gekennzeichnet, daß - in dem Austrittskanal ein Dichtelement (48) angeordnet ist, das den Kolbensitz bildet, und - das Kolbenelement (56) mit dem mindestens einen Federbein (64) in einem sich erweiternden Kanalabschnitt (50) des Austrittskanals angeordnet ist, wobei der Kolbenkopf (58) gegen den Kolbensitz (59) vorgespannt ist und durch das austretende Medium aus dem Kolbensitz (59) gedrückt wird. Closure element for a dispenser for dispensing a medium, comprising: - An insert body (22) having an outlet channel (44, 50, 52) and an outlet opening (46) for the medium to be discharged, and a piston element (56) having a piston head (58) cooperating with a piston seat (59) and at least one elastic strut (64), characterized in that - In the outlet channel, a sealing element (48) is arranged, which forms the piston seat, and - The piston element (56) is arranged with the at least one strut (64) in an expanding channel portion (50) of the outlet channel, the piston head (58) is biased against the piston seat (59) and by the exiting medium from the piston seat (56). 59) is pressed. Verschlußelement nach Anspruch 1, dadurch gekennzeichnet, daß der Einsetzkörper (22) eine im wesentlichen zylindrische Form aufweist und der Austrittskanal sich entlang der Zylinderlängsachse erstreckt.Closure element according to claim 1, characterized in that the insert body (22) has a substantially cylindrical shape and the outlet channel extends along the cylinder longitudinal axis. Verschlußelement nach Anspruch 2, dadurch gekennzeichnet, daß der Austrittskanal einen ersten Kanalabschnitt (51) mit einem konstanten Durchmesser besitzt, der in die Austrittsöffnung (46) mündet.Closure element according to claim 2, characterized in that the outlet channel has a first channel section (51) with a constant diameter, which opens into the outlet opening (46). Verschlußelement nach Anspruch 3, dadurch gekennzeichnet, daß das Dichtelement (48) in den ersten Kanalabschnitt eingesetzt ist.Closure element according to claim 3, characterized in that the sealing element (48) is inserted into the first channel section. Verschlußelement nach Anspruch 3, dadurch gekennzeichnet, daß das Dichtelement (48) einstückig mit dem Einsetzkörper (22) geformt ist.Closure element according to claim 3, characterized in that the sealing element (48) is formed integrally with the insert body (22). Verschlußelement nach Anspruch 5, dadurch gekennzeichnet, daß der Einsetzkörper mit dem Dichtelement im 2-Komponenten-Spritzverfahren hergestellt sind.Closure element according to claim 5, characterized in that the insert body are manufactured with the sealing element in the 2-component injection molding process. Verschlußelement nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Dichtelement aus einem weichen Material hergestellt ist.Closure element according to one of claims 1 to 6, characterized in that the sealing element is made of a soft material. Verschlußelement nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Kolbenkopf (58) mit der Austrittsöffnung abschließt.Closure element according to one of claims 1 to 7, characterized in that the piston head (58) terminates with the outlet opening. Verschlußelement nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Einsetzkörper in eine Ausnehmung (20) in dem Dispenser eingesetzt ist, wobei ein Kanal des Dispensers (26) für das auszutragende Medium in den Austrittskanal des Einsetzkörpers mündet.Closure element according to one of claims 1 to 8, characterized in that the insert body is inserted into a recess (20) in the dispenser, wherein a channel of the dispenser (26) for the medium to be discharged opens into the outlet channel of the insert body. Verschlußelement nach Anspruch 9, dadurch gekennzeichnet, daß der Einsetzkörper (22) in einem Preßsitz in der Ausnehmung (20) gehalten ist.Closure element according to claim 9, characterized in that the insert body (22) is held in an interference fit in the recess (20). Verschlußelement nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Kolbenkopf (58) eine im wesentlichen zylindrische Form mit einem kegelförmigen Übergangsfläche (60) zu einem zylindrischen Schaft (62) aufweist.Closure element according to one of claims 1 to 10, characterized in that the piston head (58) has a substantially cylindrical shape with a conical transition surface (60) to a cylindrical shaft (62). Verschlußelement nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß der Kolbenkopf entlang seinem Umfang an dem Kolbensitz in dem Dichtelement anliegt.Closure element according to one of claims 1 to 11, characterized in that the piston head rests along its circumference on the piston seat in the sealing element. Verschlußelement nach Anspruch 12, dadurch gekennzeichnet, daß der Kolbenkopf in dem Dichtelement federnd angeordnet ist.Closure element according to claim 12, characterized in that the piston head is resiliently arranged in the sealing element. Verschlußelement nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß das mindestens eine Federbein (64) an dem vom Kolbenkopf (58) fortweisenden Ende des Schafts (62) angeordnet ist.Closure element according to one of claims 1 to 13, characterized in that the at least one strut (64) is arranged at the end of the shaft (62) facing away from the piston head (58). Verschlußelement nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß zwei, drei oder vier Federbeine (64) von dem Kolbenelement abstehen.Closure element according to one of claims 1 to 14, characterized in that two, three or four spring legs (64) protrude from the piston element. Verschlußelement nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Federbeine unter einem von dem Kolbenkopf (58) fortweisenden Winkel von dem Kolbenschaft (62) abstehen.Closure element according to one of claims 1 to 15, characterized in that the spring legs project from the piston shaft (62) at an angle pointing away from the piston head (58). Verschlußelement nach Anspruch 1 bis 16, dadurch gekennzeichnet, daß der Dispenser einen elastischen Behälter aufweist, der auf Druck von Außen sein Medium herauspreßt.Closure element according to Claims 1 to 16, characterized in that the dispenser has an elastic container which presses its medium out under pressure. Verschlußelement nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß der Dispenser einen mit einem Abgabeventil (68) versehenen Druckbehälter aufweist.Closure element according to one of claims 1 to 16, characterized in that the dispenser has a pressure vessel provided with a dispensing valve (68). Verschlußelement nach Anspruch 18, dadurch gekennzeichnet, daß jedes Federbein (64) an seinem freien Ende einen abgeknickten Abschnitt (66) besitzt, der im wesentlichen flach an der Innenwand in dem Austrittskanal (50) anliegt.Closure element according to claim 18, characterized in that each strut (64) has at its free end a bent portion (66) which abuts substantially flat against the inner wall in the outlet channel (50). Verschlußelement nach einem der Ansprüche 1 bis 19, dadurch gekennzeichnet, daß das Kolbenelement aus einem Acetalcopolymerisat (POM) hergestellt ist.Closure element according to one of claims 1 to 19, characterized in that the piston element is made of an acetal copolymer (POM). Verschlußelement nach einem der Ansprüche 1 bis 20, dadurch gekennzeichnet, daß das Dichtelement und/oder der Kolbensitz aus einem Elastomer hergestellt ist, der weicher als das Acetalcopolymerisat des Kolbenelements ist.Closure element according to one of claims 1 to 20, characterized in that the sealing element and / or the piston seat is made of an elastomer which is softer than the Acetalcopolymerisat of the piston element.
EP06020920A 2005-12-03 2006-10-05 Closure device for a dispenser Not-in-force EP1792841B1 (en)

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DE102005057822A DE102005057822B4 (en) 2005-12-03 2005-12-03 Spray cap for a pressure vessel provided with a dispensing valve

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EP1792841B1 EP1792841B1 (en) 2009-06-17

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EP (1) EP1792841B1 (en)
AT (1) ATE433923T1 (en)
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DE102005057822B4 (en) 2009-08-13
DE102005057822A1 (en) 2007-06-06
CA2569119A1 (en) 2007-06-03
ATE433923T1 (en) 2009-07-15
DE502006003982D1 (en) 2009-07-30
CA2569119C (en) 2010-07-13
US20070125806A1 (en) 2007-06-07
EP1792841B1 (en) 2009-06-17
ES2328840T3 (en) 2009-11-18
US8292199B2 (en) 2012-10-23

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