EP0557569A1 - Valve for deformable plastic bottle - Google Patents

Valve for deformable plastic bottle Download PDF

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Publication number
EP0557569A1
EP0557569A1 EP92107091A EP92107091A EP0557569A1 EP 0557569 A1 EP0557569 A1 EP 0557569A1 EP 92107091 A EP92107091 A EP 92107091A EP 92107091 A EP92107091 A EP 92107091A EP 0557569 A1 EP0557569 A1 EP 0557569A1
Authority
EP
European Patent Office
Prior art keywords
valve
container
plunger
spring
valve seat
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.)
Withdrawn
Application number
EP92107091A
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German (de)
French (fr)
Inventor
Stefan Bogumil
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.)
Sbk Spritz-Blas-Kunststoff-Technik & Co KG GmbH
Original Assignee
Sbk Spritz-Blas-Kunststoff-Technik & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sbk Spritz-Blas-Kunststoff-Technik & Co KG GmbH filed Critical Sbk Spritz-Blas-Kunststoff-Technik & Co KG GmbH
Publication of EP0557569A1 publication Critical patent/EP0557569A1/en
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a valve for spray plastic containers, in particular shampoo containers, having a valve seat on the neck of the container and a reciprocating plunger which cooperates with the valve seat.
  • valve arrangements For shampoo containers, there are a variety of valve arrangements that can be operated to allow the desired amount of liquid to be withdrawn. Even if one assumes completely normal conditions here, the known valves are extremely complicated and require a complicated assembly process.
  • the invention has for its object to provide a valve according to the type mentioned, which on the one hand is simple in construction and easy to assemble and on the other hand can also be used reliably at higher temperatures, with complete emptying of the container being possible.
  • the essence of the invention is based on the fact that the compression movement which is usually carried out in order to press liquid out of a spray plastic container, in particular a shampoo bottle, is simultaneously used to actuate the valve tappet.
  • the corresponding reciprocating movement of the valve tappet is derived from the deformation of a spring which is arranged in contact engagement with the walls of the container. If you press a U-shaped spring with a corresponding bulge in the area of the middle of its legs and keep the two ends of the spring stationary, the base of the spring must inevitably perform an axial movement which can be used to open a valve via a valve tappet.
  • the spring according to the invention is a plastic part that is not even 1 mm thick and can have a width of approximately 1 cm. Such a material can be produced with a good spring property, so that even at higher temperatures Desired closing effect of the valve remains and the opening movement can still be generated by pressure on the wall.
  • the properties of the material for the injection-molded plastic container are not of primary importance. If this is a rigid material that can be compressed, the desired force and movement is transferred to the spring. However, if the material is not inherently rigid, for example a tubular film container, the mechanism according to the invention can nevertheless be actuated by compressing the spring from the outside.
  • the ends of the flat springs can be attached in any way to or in the neck of the container. It is also possible to provide a special ring to which the ends of the spring are attached and which has a central passage for the plunger and, if necessary, passages for the liquid. Such a unit can be manufactured separately and can be attached or screwed onto a neck of a molded plastic bottle in a single operation.
  • the figure shows a schematic cross-sectional view of a valve with a spray plastic container according to the invention.
  • the injection molded plastic container shown in the figure can have any shape, for example cylindrical round, but also just as flat and with crowned side walls. In any case, it is provided with a valve opening 10 which represents an opening in the neck 11 of the container from the interior of the container to the exterior. This opening 10 is closed from the inside by a plunger 12, the closed position being shown in the figure.
  • the plunger 12 has been extended, its opposite end being connected at 13 to the base of a spring 14 which is essentially flat.
  • the legs of the spring 14 are fixed in the region of the neck 11 of the container at 17.
  • the spring properties of the spring 14 are dimensioned such that the two legs rest firmly against the wall of the container at 15 in the central region.
  • the container is shown in the horizontal position, it can be seen that the container can be fixedly mounted, in such a way that the opening 10 points downwards. Even in this position it is ensured that liquid can only get out of the container when the plunger 12 has been moved away from the opening 10, which can be produced in the region 15 by compressing the container. It can be seen that the container can be completely emptied. It can also be seen that with a sufficiently large dimensioning of the spring force of the spring 14 a secure closure can be ensured even at higher temperatures.

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

Abstract

Valve for plastic containers, in particular shampoo containers. A valve seat (10) is arranged on the neck (11) of the container and cooperates with a tappet (12). The tappet (12) is connected at its end (13) opposite the valve seat (10) to the base of a substantially U-shaped flat spring (14) whose limbs are arranged in their central regions in each case in contact engagement (15) with opposite walls of the container. One of the free ends of the flat spring (14) is fixed on the neck (11). <IMAGE>

Description

Die Erfindung bezieht sich auf ein Ventil für Spritz-Kunststoffbehälter, insbesondere Schampoobehälter, aufweisend einen Ventilsitz am Hals des Behälters und einen mit dem Ventilsitz zusammenarbeitenden hin- und herbeweglichen Stößel.The invention relates to a valve for spray plastic containers, in particular shampoo containers, having a valve seat on the neck of the container and a reciprocating plunger which cooperates with the valve seat.

Für Schampoobehälter gibt es eine Vielzahl von Ventilanordnungen, die betätigt werden können, damit die gewünschte Menge Flüssigkeit entnommen werden kann. Auch wenn man hier von ganz normalen Bedingungen ausgeht, so sind die bekannten Ventile äußerst kompliziert aufgebaut und benötigen einen komplizierten Montagevorgang.For shampoo containers, there are a variety of valve arrangements that can be operated to allow the desired amount of liquid to be withdrawn. Even if one assumes completely normal conditions here, the known valves are extremely complicated and require a complicated assembly process.

Wenn man weitergehend an Schampoobehältern dann die Forderung stellt, daß auch bei höheren Temperaturen der Ventilmechanismus noch einwandfrei arbeiten soll, so hat dies zu weiter komplizierten Ventilanordnungen geführt. Derartige höhere Temperaturen können bei der Benutzung von Schampooflaschen in der Tat auftreten, da damit gerechnet werden muß, daß die Schampooflasche von heißem Duschwasser erfaßt wird.If one then makes further demands on shampoo containers that the valve mechanism should still work properly even at higher temperatures, this has led to further complicated valve arrangements. Such higher temperatures can indeed occur when using shampoo bottles, since it must be expected that the shower bottle will be caught by hot shower water.

In jüngster Zeit ist zudem noch die Forderung laut geworden, Schampoobehälter im Bad, beispielsweise in Hotelzimmern, fest zu installieren, und zwar so, daß die Öffnung nach unten zeigt, so daß eine restlose Entleerung der Flasche möglich ist.Recently, there has also been a growing demand to firmly install shampoo containers in the bathroom, for example in hotel rooms, in such a way that the opening points downward, so that the bottle can be emptied completely.

Derartige Anforderungen haben bekannte Ventilanordnungen für Schampoobehälter nicht erfüllen können. Funktionierte der Ausgabemechanismus bei niedrigen Temperaturen einwandfrei, so ergab sich häufig der Fall, daß bei erhöhten Temperaturen der Ventilsitz nicht dicht abgeschlossen werden konnte, so daß übermäßig viel Flüssigkeit und darüber hinaus auch zu einem unerwünschten Zeitpunkt auslief.Known valve arrangements for shampoo containers have not been able to meet such requirements. If the dispensing mechanism worked properly at low temperatures, it often happened that at elevated temperatures the valve seat could not be sealed, so that excessive liquid and moreover leaked at an undesired time.

Der Erfindung liegt die Aufgabe zugrunde, ein Ventil gemäß der eingangs genannten Art zu schaffen, das einerseits einfach aufgebaut und leicht zu montieren ist und andererseits auch bei höheren Temperaturen betriebssicher eingesetzt werden kann, wobei ein restloses Entleeren des Behälters möglich ist.The invention has for its object to provide a valve according to the type mentioned, which on the one hand is simple in construction and easy to assemble and on the other hand can also be used reliably at higher temperatures, with complete emptying of the container being possible.

Erreicht wird dies durch die in den Ansprüchen angegebenen Merkmale.This is achieved by the features specified in the claims.

Der Kern der Erfindung beruht darauf, daß die Zusammendrückbewegung, die man üblicherweise ausführt, um aus einem Spritzkunststoffbehälter, insbesondere einer Schampooflasche, Flüssigkeit herauszudrücken, gleichzeitig dafür eingesetzt wird, den Ventilstößel zu betätigen.The essence of the invention is based on the fact that the compression movement which is usually carried out in order to press liquid out of a spray plastic container, in particular a shampoo bottle, is simultaneously used to actuate the valve tappet.

Die entsprechende hin- und hergehende Bewegung des Ventilstößels wird dabei aus der Verformung einer Feder hergeleitet, die mit den Wandungen des Behälters in Berührungseingriff angeordnet ist. Drückt man eine U-förmige Feder mit einer entsprechenden Ausbauchung im Bereich der Mitte ihrer Schenkel zusammen und hält die beiden Enden der Feder ortsfest, so muß zwangsläufig der Grund der Feder eine Axialbewegung ausführen, die man zur Öffnung eines Ventiles über einen Ventilstößel einsetzen kann.The corresponding reciprocating movement of the valve tappet is derived from the deformation of a spring which is arranged in contact engagement with the walls of the container. If you press a U-shaped spring with a corresponding bulge in the area of the middle of its legs and keep the two ends of the spring stationary, the base of the spring must inevitably perform an axial movement which can be used to open a valve via a valve tappet.

Bei der Feder gemäß der Erfindung handelt es sich um einen Kunststoffteil, der noch nicht einmal 1 mm Dicke hat und eine Breite von etwa 1 cm haben kann. Ein derartiges Material läßt sich mit einer guten Federeigenschaft herstellen, so daß selbst bei höheren Temperaturen die gewünschte Schließwirkung des Ventils bestehen bleibt und dennoch durch Druck auf die Wandung die Öffnungsbewegung erzeugt werden kann.The spring according to the invention is a plastic part that is not even 1 mm thick and can have a width of approximately 1 cm. Such a material can be produced with a good spring property, so that even at higher temperatures Desired closing effect of the valve remains and the opening movement can still be generated by pressure on the wall.

Bei der Ausgestaltung des Ventils gemäß der Erfindung kommt es auf die Eigenschaften des Materials für den Spritzkunststoffbehälter nicht primär an. Handelt es sich hier um ein starres Material, das zusammengedrückt werden kann, so wird die gewünschte Kraft und Bewegung auf die Feder übertragen. Handelt es sich hingegen um ein nicht eigenstarres Material, beispielsweise um einen Folienschlauchbehälter, so kann der Mechanismus gemäß der Erfindung dennoch betätigt werden, indem von außen her die Feder zusammengedrückt wird.When designing the valve according to the invention, the properties of the material for the injection-molded plastic container are not of primary importance. If this is a rigid material that can be compressed, the desired force and movement is transferred to the spring. However, if the material is not inherently rigid, for example a tubular film container, the mechanism according to the invention can nevertheless be actuated by compressing the spring from the outside.

Gemäß der Erfindung können die Enden der flachförmigen Federn in irgendeiner Weise am oder im Hals des Behälters befestigt werden. Es ist auch möglich, einen speziellen Ring vorzusehen, an dem die Enden der Feder befestigt sind und der einen Mitteldurchgang für den Stößel und gegebenenfalls Durchgänge für die Flüssigkeit aufweist. Eine solche Einheit kann separat hergestellt werden und mit einem einzigen Handgriff auf einen Hals einer Spritzkunststoffflasche aufgesetzt oder aufgeschraubt werden.According to the invention, the ends of the flat springs can be attached in any way to or in the neck of the container. It is also possible to provide a special ring to which the ends of the spring are attached and which has a central passage for the plunger and, if necessary, passages for the liquid. Such a unit can be manufactured separately and can be attached or screwed onto a neck of a molded plastic bottle in a single operation.

Die Erfindung wird nachstehend anhand der Zeichnung beispielsweise erläutert.The invention is explained below with reference to the drawing, for example.

Die Figur zeigt eine schematische Querschnittsansicht eines Ventils mit einem Spritzkunststoffbehälter gemäß der Erfindung.The figure shows a schematic cross-sectional view of a valve with a spray plastic container according to the invention.

Der in der Figur gezeigte Spritzkunststoffbehälter kann eine beliebige Form haben, also beispielsweise zylindrisch rund, aber auch ebensogut flach und mit balligen Seitenwänden. Er ist in jedem Falle mit einer Ventilöffnung 10 versehen, die im Hals 11 des Behälters eine Öffnung vom Innenraum des Behälters zum Außenraum darstellt. Diese Öffnung 10 ist von innen her durch einen Stößel 12 verschlossen, wobei in der Figur die Schließstellung gezeigt ist.The injection molded plastic container shown in the figure can have any shape, for example cylindrical round, but also just as flat and with crowned side walls. In any case, it is provided with a valve opening 10 which represents an opening in the neck 11 of the container from the interior of the container to the exterior. This opening 10 is closed from the inside by a plunger 12, the closed position being shown in the figure.

Gemäß der Erfindung ist der Stößel 12 verlängert worden, wobei sein gegenüberliegendes Ende bei 13 mit dem Grund einer im wesentlichen flach ausgebildeten Feder 14 verbunden ist. Die Schenkel der Feder 14 sind im Bereich des Halses 11 des Behälters bei 17 ortsfest festgelegt. Die Federeigenschaften der Feder 14 sind so dimensioniert, daß die beiden Schenkel im mittleren Bereich fest an der Wandung des Behälters bei 15 jeweils anliegen.According to the invention, the plunger 12 has been extended, its opposite end being connected at 13 to the base of a spring 14 which is essentially flat. The legs of the spring 14 are fixed in the region of the neck 11 of the container at 17. The spring properties of the spring 14 are dimensioned such that the two legs rest firmly against the wall of the container at 15 in the central region.

Es ist ersichtlich, daß bei Druck auf den Behälter etwa in Richtung der Pfeile 15 eine nach rechts gerichtete Bewegung des Stößels 12 erzeugt wird, so daß Flüssigkeit aus der Öffnung 10 heraustreten kann.It can be seen that when pressure is exerted on the container approximately in the direction of the arrows 15, a movement of the plunger 12 directed to the right is generated, so that liquid can emerge from the opening 10.

In der Figur ist der Behälter in der waagerechten Lage gezeigt, es ist ersichtlich, daß der Behälter fest montiert werden kann, und zwar so, daß die Öffnung 10 nach unten zeigt. Auch in dieser Lage ist sichergestellt, daß nur dann Flüssigkeit aus dem Behälter nach außen gelangen kann, wenn der Stößel 12 von der Öffnung 10 wegbewegt worden ist, was durch Zusammendrücken des Behälters im Bereich 15 erzeugt werden kann. Es ist ersichtlich, daß der Behälter restlos entleert werden kann. Es ist weiterhin zu erkennen, daß bei ausreichend großer Dimensionierung der Federkraft der Feder 14 ein sicherer Verschluß selbst bei höheren Temperaturen sichergestellt werden kann.In the figure, the container is shown in the horizontal position, it can be seen that the container can be fixedly mounted, in such a way that the opening 10 points downwards. Even in this position it is ensured that liquid can only get out of the container when the plunger 12 has been moved away from the opening 10, which can be produced in the region 15 by compressing the container. It can be seen that the container can be completely emptied. It can also be seen that with a sufficiently large dimensioning of the spring force of the spring 14 a secure closure can be ensured even at higher temperatures.

Claims (3)

Ventil für Spritz- Kunststoffbehälter, insbesondere Schampoobehälter, aufweisend einen Ventilsitz (10) am Hals (11) des Behälters und einen mit dem Ventilsitz (10) zusammenarbeitenden hin- und herbeweglichen Stößel (12), dadurch gekennzeichnet, daß der Stößel (12) an seinem dem Ventilsitz (10) gegenüberliegenden Ende (13) mit dem Grund einer im wesentlichen U-förmigen Flachfeder (14) verbunden ist, deren Schenkel in ihren mittleren Bereichen jeweils mit gegenüberliegenden Wandungen des Behälters im Berührungseingriff (15) angeordnet sind, wobei mindestens eines der freien Enden der Flachfeder (14) am Hals (11) befestigt (17) ist.Valve for spray plastic containers, in particular shampoo containers, comprising a valve seat (10) on the neck (11) of the container and a reciprocating plunger (12) which cooperates with the valve seat (10), characterized in that the plunger (12) its end (13) opposite the valve seat (10) is connected to the base of an essentially U-shaped flat spring (14), the legs of which are arranged in their central regions with opposite walls of the container in contact engagement (15), at least one of which the free ends of the flat spring (14) on the neck (11) is fixed (17). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Feder (14) und der Stößel (12) als einstückiges Kunststoffspritzteil ausgebildet sind.Device according to claim 1, characterized in that the spring (14) and the plunger (12) are designed as a one-piece plastic injection-molded part. Vorrichtung nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß die Schenkel (14) geradlinig gerichtet oder spiralförmig um den Stößel (12) gewunden sind.Device according to claims 1 or 2, characterized in that the legs (14) are directed in a straight line or are spirally wound around the plunger (12).
EP92107091A 1992-02-24 1992-04-25 Valve for deformable plastic bottle Withdrawn EP0557569A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9202380U DE9202380U1 (en) 1992-02-24 1992-02-24 Valve for a plastic injection molded container
DE9202380U 1992-02-24

Publications (1)

Publication Number Publication Date
EP0557569A1 true EP0557569A1 (en) 1993-09-01

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EP92107091A Withdrawn EP0557569A1 (en) 1992-02-24 1992-04-25 Valve for deformable plastic bottle

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EP (1) EP0557569A1 (en)
DE (1) DE9202380U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103764512A (en) * 2012-08-27 2014-04-30 李英柱 Opening and closing device for automatic cap for liquid container

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457453A (en) * 1982-10-22 1984-07-03 Stevens Peter P Self-sealing container closure
EP0530789A1 (en) * 1991-09-06 1993-03-10 ADA HOTELCOSMETIC GmbH Dosing dispenser for liquid soap or similar

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457453A (en) * 1982-10-22 1984-07-03 Stevens Peter P Self-sealing container closure
EP0530789A1 (en) * 1991-09-06 1993-03-10 ADA HOTELCOSMETIC GmbH Dosing dispenser for liquid soap or similar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103764512A (en) * 2012-08-27 2014-04-30 李英柱 Opening and closing device for automatic cap for liquid container

Also Published As

Publication number Publication date
DE9202380U1 (en) 1992-08-06

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