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EP0301053B1 - Closure for a bottle or similar - Google Patents

Closure for a bottle or similar Download PDF

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Publication number
EP0301053B1
EP0301053B1 EP88901241A EP88901241A EP0301053B1 EP 0301053 B1 EP0301053 B1 EP 0301053B1 EP 88901241 A EP88901241 A EP 88901241A EP 88901241 A EP88901241 A EP 88901241A EP 0301053 B1 EP0301053 B1 EP 0301053B1
Authority
EP
European Patent Office
Prior art keywords
stopper according
sealing
retaining part
bottle
sealing part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88901241A
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German (de)
French (fr)
Other versions
EP0301053A1 (en
Inventor
Michael Dr. Hertrampf
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Individual
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Individual
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Publication date
Priority claimed from DE8717026U external-priority patent/DE8717026U1/en
Application filed by Individual filed Critical Individual
Priority to AT88901241T priority Critical patent/ATE63521T1/en
Publication of EP0301053A1 publication Critical patent/EP0301053A1/en
Application granted granted Critical
Publication of EP0301053B1 publication Critical patent/EP0301053B1/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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1661—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of a passage for the escape of gas between the closure and the lip of the container mouth
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve

Definitions

  • the invention relates to a closure according to the preamble of claim 1 for a bottle or the like.
  • a closure is known from CH-A-220 476.
  • closures for bottles are either screw closures or crown closures. Both types of closure essentially consist of a cap-shaped part which is positively connected to the bottle neck. There is also a seal between the closure and the bottle neck. Because of the positive connection, the bottle is closed pressure-tight. As a result, there is a risk that the bottle will be damaged in the event of overpressure. Both with plastic bottles and with glass bottles, this can lead to breakage and leakage of the liquid, which means a considerable risk if the contents of the bottle are dangerous. In the case of glass bottles, there is also a risk of injury to people, especially the eyes, from broken glass fragments.
  • Cap-shaped closures made of plastic for bottles are also known, which are snapped onto the bottle neck. Just as they snap open, they can snap down and let excess pressure escape, however, the point at which they give in to excess pressure is not defined and, moreover, they do not close automatically after the excess pressure has released.
  • a closure of the type in question is known, which is designed as a screw closure in which the cap-shaped holding part has an internal thread with which it can be screwed onto the external thread of a bottle neck.
  • an unyielding plate which is supported against the bottom of the cap by a leaf spring.
  • a rubber plate On the side of the plate facing away from the leaf spring, there is a rubber plate as a seal which, when screwed on, rests on the upper edge of a neck of a bottle with a force which is determined by the force of the spring and by the degree of screwing of the screw cap onto the bottle neck is.
  • the invention has for its object to provide a closure of the type in question for bottles or the like, in which the escape of dangerous excess pressure is reliably ensured even with larger manufacturing tolerances above a predetermined pressure and the risk of the bottles bursting is avoided in all cases.
  • the invention is based on the basic idea of designing the closure in the form of a pressure relief valve which is dimensioned and designed in such a way that no impermissibly high pressures can arise even with larger manufacturing tolerances, such as those which occur in mass production.
  • the escape of gas or liquid from the bottle above a predetermined pressure limits the pressure to the maximum permissible level.
  • the bottle can therefore not burst, which can lead to accidents, for example damage to eyes due to flying glass fragments, particularly in the case of glass bottles.
  • the danger is also great with plastic bottles if there is a dangerous liquid in the bottle. Since bottles filled with liquid, for example bottles of carbonated lemonade, are generally stored and transported upright, excess pressure only escapes in the form of the gas, so that the liquid does not escape at all. The advantage of avoiding excess pressure is therefore only offset by the completely negligible disadvantage of the partial escape of carbon dioxide.
  • the holding part for the defined contact of the holding part on the edge of the bottle neck. Since the sealing part also lies against the edge of the bottle neck, generally further inside, the mutual position of the holding part and the sealing part is precisely defined. Since the elastic element for pretensioning the sealing element is located between the two, the size of the pretension of the elastic element is also precisely defined and thus the pressure at which the sealing element lifts off, that is to say opens the pressure relief valve.
  • the elastic element can be formed by a flexible rod, which engages with its ends on the holding part and lies in the middle region between the ends on the side of the sealing part facing away from the sealing side.
  • This rod can be made of metal, in particular steel, so that it retains its elastic properties over a long period of time and thus the opening pressure of the pressure relief valve is precisely defined over a long period.
  • the elastic element can be formed by the sealing part itself, in that it is designed to be elastic, for example by thin dimensioning or by appropriate choice of material.
  • the elastic compliance can also only partially exist, for example in the edge area.
  • Holding part and sealing part can be firmly connected to one another via the elastic element.
  • This connection can also be releasable, e.g. have the shape of a snap connection.
  • the sealing part can also have the shape of a rigid disk.
  • the elastic element can also be flat, for example in the form of a foam disc or in the form of several, distributed spring lips or the like.
  • All parts of the closure can be made of plastic or metal, depending on the requirements and the possible reusability.
  • the connection of the holding part to the bottle neck can also be arbitrary. It can be a frictional connection, but expediently a positive connection of any shape, as occurs, for example, in so-called crown caps or screw closures.
  • FIGS. 1 and 2 in two vertical sections perpendicular to each other, an upper part of a bottle neck 1 is shown on which a cap-shaped holding part 2 is arranged, which has a radially inwardly directed collar 3 and an upper bead 4 on the bottle neck 1 reaches behind and thus holds the holding part.
  • the holding part 2 lies with one Stop 5 on an upper edge 6 of the bottle neck 1, so that its position is precisely defined.
  • a round rod 8 extends diametrically, which consists of the piece with the holding part 2, so that it is pressed together from plastic.
  • this is positively releasably gripped by two lips 9, which are located on a sealing part 10, which essentially forms a rigid disc, which has a conical, annular sealing surface 11 on its edges, which on the inner part of the Edge 6 of the bottle neck 1 fits tightly. If necessary, this conical sealing surface can also be coated with a soft sealing material.
  • the position of the fitting 5, the sealing part 10 and the rod 8 are such that the rod 8 is in the closed position shown under a bias which, in connection with the surface of the sealing part 10, determines the pressure at which the sealing part 10 is due of the pneumatic or hydraulic pressure and allows excess pressure to escape.
  • the holding part has the shape of a crown cap 12, which is held in place by crown-shaped indentations 13 on the bead 4 of the bottle neck 1 and thereby engages with a fitting 14 formed by an indentation on the upper edge 6 of the bottle neck 1 supports, whereby their position in relation to the bottle neck is precisely defined. In this position, the crown cap 12 is not tightly connected to the bottle neck 1.
  • the plate 15 forming the sealing part, which is centrally connected via a support 16 to a bottom 17 of the crown cap 12. At its edge, the plate 15 has a circumferential sealing lip 18 which bears against the upper edge 6 of the bottle neck 1. Plate 15 and sealing lip 18 are made of an elastically resilient material and so thin that the outer edge of the plate 15th yield and the circumferential sealing lip 18 can stand out, so that excess pressure can escape.
  • the crown cap 12 can consist of sheet metal in a conventional manner, while in particular the plate 15 with the circumferential sealing lip 18 consists of a plastic material. Another material, for example sheet metal, is also possible.
  • the sealing part 2 is designed in principle as in the exemplary embodiment according to FIG. 2, but a bottom 19 of the holding part 2 is provided, similar to the bottom 17 in the exemplary embodiment according to FIG. 3 To ensure escape of excess pressure through the holding part 2, a hole 20 is provided in the bottom 19.
  • a support 21 which is connected via a spherical snap connection 22 to a plate 23 which corresponds to the plate 15 in Fig. 3 and consists of a resilient material, so that in particular the edges of the plate 23 at excess pressure can lift off the edge 6 of the bottle neck 1.
  • the base 19 it is also possible to design the base 19 to be very thin and resilient, so that it forms the spring element, in which case the plate 23 can be rigid.
  • the bottom 19 and plate 23 can be elastically flexible in the desired manner.
  • the holding part 2 is designed essentially as in the exemplary embodiment according to FIG. 4, but a rigid, disk-shaped sealing part 24 is provided, which is resiliently supported on the base 19 by elastic spring lips 25.
  • a circumferential collar 26 extends inward from the stop 5 and engages behind the outer edge of the sealing part 24, so that the sealing part 24 is captively connected to the holding part 2.
  • the fifth exemplary embodiment in FIG. 6 largely corresponds to that according to FIG. 5 with the difference that instead of the sealing lips 25 in the space between the bottom 19 and the sealing part 24, a spring rod 27 is arranged in the form of a pre-curved leaf spring.
  • the dimensioning and curvature of the spring rod 27 defines the spring force, which determines the excess pressure at which the sealing part 24 rises in order to allow excess pressure to escape.
  • the sixth exemplary embodiment in FIG. 7 largely corresponds to that according to FIG. 3.
  • a difference is that instead of the flexible plate 15, an essentially rigid sealing part 28 is provided, which is located on the bottom 17 of the crown cap 12 via an elastically flexible foam part 29 supports.
  • the foam part 29 can simply be glued to the adjacent surface parts, so that the sealing part 28 is firmly and captively connected to the base 17 and thus to the crown cap 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Devices For Use In Laboratory Experiments (AREA)

Abstract

Closure for a bottle or similar, with a cap-shaped holding part (2) provided with an inward-facing projection or collar (3) for engaging the protruding lip of the neck of a bottle, and with a sealing part, independent of the holding part yet connected with it, with an annular sealing surface lying on the surface of the bottle neck. The sealing part is connected to the holding part by means of an elastic element (27) or is itself elastic, forming an excess pressure valve. When the closure seals the neck of a bottle, the holding part, under the tension of the elastic element (27), rests on the upper edge of the bottle neck. When the spring tension registers pressure, the holding part opens, preventing the build-up of excessive pressure. Bottles are thereby prevented from bursting, and the risk of accidents is avoided.

Description

Die Erfindung betrifft einen Verschluß gemäß dem Oberbegriff des Anspruchs 1 für eine Flasche oder dergleichen. Ein solcher Verschluß ist aus CH-A-220 476 bekannt.The invention relates to a closure according to the preamble of claim 1 for a bottle or the like. Such a closure is known from CH-A-220 476.

Bekannte Verschlüsse für Flaschen sind entweder Schraubverschlüsse oder Kronenverschlüsse. Beide Verschlußarten bestehen im wesentlichen aus einem kappenförmigen Teil, das formschlüssig mit dem Flaschenhals verbunden ist. Zwischen dem Verschluß und dem Flaschenhals befindet sich auch noch eine Dichtung. Wegen der formschlüssigen Verbindung ist die Flasche druckfest geschlossen. Dadurch besteht die Gefahr, daß die Flasche bei Überdruck beschädigt wird. Sowohl bei Flaschen aus Kunststoff wie auch bei Flaschen aus Glas kann dies zu Brüchen und zum Auslaufen der Flüssigkeit führen, was bei gefährlichem Flascheninhalt eine beträchtliche Gefahr bedeutet. Im Falle von Glasflaschen besteht außerdem die Gefahr der Verletzung von Personen, insbesondere der Augen, durch herumfliegende Glassplitter.Known closures for bottles are either screw closures or crown closures. Both types of closure essentially consist of a cap-shaped part which is positively connected to the bottle neck. There is also a seal between the closure and the bottle neck. Because of the positive connection, the bottle is closed pressure-tight. As a result, there is a risk that the bottle will be damaged in the event of overpressure. Both with plastic bottles and with glass bottles, this can lead to breakage and leakage of the liquid, which means a considerable risk if the contents of the bottle are dangerous. In the case of glass bottles, there is also a risk of injury to people, especially the eyes, from broken glass fragments.

Es sind auch kappenförmige Verschlüsse aus Kunststoff für Flaschen bekannt, die auf den Flaschenhals aufgeschnappt werden. Genauso wie sie aufschnappen, können sie auch herunterschnappen und dabei Überdruck entweichen lassen, jedoch ist der Punkt, an dem sie dem Überdruck nachgeben, nicht definiert, und außerdem schließen sie sich nach Entweichen des Überdruckes nicht selbsttätig.Cap-shaped closures made of plastic for bottles are also known, which are snapped onto the bottle neck. Just as they snap open, they can snap down and let excess pressure escape, however, the point at which they give in to excess pressure is not defined and, moreover, they do not close automatically after the excess pressure has released.

Durch die CH-PS 220 476 ist ein Verschluß der betreffenden Art bekannt, der als Schraubverschluß ausgebildet ist, in dem das kappenförmige Halteteil ein Innengewinde aufweist, mit dem es auf das Außengewinde eines Flaschenhalses aufschraubbar ist. Im Boden des kappenförmigen Halteteiles befindet sich eine unnachgiebige Platte, die über eine Blattfeder gegenüber dem Boden der Kappe abgestützt ist. Auf der der Blattfeder abgewandten Seite der Platte befindet sich als Dichtung eine Gummiplatte, die im aufgeschraubten Zustand auf dem oberen Rand eines Halses einer Flasche mit einer Kraft aufliegt, die durch die Kraft der Feder und durch den Grad des Aufschraubens der Schraubkappe auf den Flaschenhals bestimmt ist. Die Einstellung dieses Grenzdruckes, bei der das so gebildete Überdruckventil öffnet, geschieht entweder maschinell beim Aufschrauben bis zu einem vorbestimmten Drehmoment oder von Hand. Schon das Messen des Drehmomentes hängt von den Kräften im Gewinde ab und ist daher sehr ungenau. Erst recht läßt sich ein vorgegebenes Drehmoment nicht von Hand einstellen, weil dann noch das subjektive Empfinden einer Person hinzukommt. Eine Einstellung von Hand setzt aber vor allem die Kenntnis dieser Verhältnisse durch viele Personen voraus, was niemals vorausgesetzt werden kann. Für die Praxis ist dieser bekannte Verschluß daher völlig ungeeignet.From CH-PS 220 476 a closure of the type in question is known, which is designed as a screw closure in which the cap-shaped holding part has an internal thread with which it can be screwed onto the external thread of a bottle neck. In the bottom of the cap-shaped holding part there is an unyielding plate which is supported against the bottom of the cap by a leaf spring. On the side of the plate facing away from the leaf spring, there is a rubber plate as a seal which, when screwed on, rests on the upper edge of a neck of a bottle with a force which is determined by the force of the spring and by the degree of screwing of the screw cap onto the bottle neck is. This limit pressure, at which the pressure relief valve formed in this way opens, is adjusted either mechanically when screwing on up to a predetermined torque or by hand. Even the measurement of the torque depends on the forces in the thread and is therefore very imprecise. A given torque cannot be adjusted by hand, because then there is the subjective feeling of a person. A manual setting, however, primarily requires knowledge of these conditions by many people, which can never be assumed. This known closure is therefore completely unsuitable in practice.

Durch die US-PS 3 976 216 ist ein Verschluß für einen Behälter für sterile Flüssigkeiten bekannt, der einen Hals aufweist, der durch eine dünne Stülpkappe aus Latex abgedichtet ist, die sich bei Unterdruck in dem Behälter nach der Sterilisation dichtend gegen ein Stützteil legt, das sich auf dem Flaschenrand abstützt. Dieser Verschluß ist nicht geeignet, Überdrücke abzudichten und bei einem definierten Überdrück entweichen zu lassen.From US Pat. No. 3,976,216 a closure for a container for sterile liquids is known, which has a neck which is sealed by a thin slip cap made of latex, which lies under sealing pressure against a support part in the container after sterilization, that rests on the edge of the bottle. This closure is not suitable to seal overpressures and to let them escape at a defined overpressure.

Durch die US-A 3 110 599 ist eine Schraubkappe zum Verschließen von Gläsern für Lebensmittel bekannt, bei der eine Dichtung mit ihren Rändern zwischen dem Rand der Glasöffnung und einem ringförmigen Vorsprung im Boden der Schraubkappe eingeklemmt wird. Die Stärke des Einklemmens hängt davon ab, wie fest die Schraubkappe geschraubt wird. Die Einklemmkraft hängt außerdem von der Reibung im Schraubgewinde ab. Dieser bekannte Verschluß ist daher nicht geeignet, bei Übertragung auf Flaschen, die unter Druck stehende Flüssigkeiten enthalten, den Verbraucher in die Lage zu setzen, die Flasche wiederholt zu öffnen und so zu schließen, daß die Schraubkappe eine exakt definierte Lage in bezug zu dem oberen Rand des Flaschenhalses hat, was Voraussetzung dafür ist, ein Platzen von Flaschen bei Überdruck zu vermeiden.From US-A 3 110 599 a screw cap for closing glasses for food is known, in which a seal is clamped with its edges between the edge of the glass opening and an annular projection in the bottom of the screw cap. The degree of pinching depends on how tightly the screw cap is screwed on. The pinching force also depends on the friction in the screw thread. This Known closure is therefore not suitable, when transferred to bottles containing pressurized liquids, to enable the consumer to open and close the bottle repeatedly so that the screw cap is in a precisely defined position with respect to the upper edge of the bottle neck has what is a prerequisite for avoiding the bursting of bottles with overpressure.

Der Erfindung liegt die Aufgabe zugrunde, einen Verschluß der betreffenden Art für Flaschen oder dergleichen zu schaffen, bei dem das Entweichen gefährlichen Überdrucks sicher auch bei größeren Fertigungstoleranzen oberhalb eines vorgegebenen Druckes sichergestellt und damit die Gefahr des Platzens der Flaschen in allen Fällen vermieden ist.The invention has for its object to provide a closure of the type in question for bottles or the like, in which the escape of dangerous excess pressure is reliably ensured even with larger manufacturing tolerances above a predetermined pressure and the risk of the bottles bursting is avoided in all cases.

Die der Erfindung zugrundeliegende Aufgabe wird durch die im Kennzeichen des Anspruchs 1 angegebene Lehre gelöst.The object on which the invention is based is achieved by the teaching specified in the characterizing part of claim 1.

Die Erfindung beruht auf dem Grundgedanken, den Verschluß in Form eines Überdruckventiles auszubilden, das so dimensioniert und ausgebildet ist, daß keine unzulässig hohen Drücke auch bei größeren Fertigungstoleranzen, wie sie in der Massenfertigung vorkommen, entstehen können. Durch Entweichen von Gas oder Flüssigkeit aus der Flasche oberhalb eines vorgegebenen Druckes wird der Druck auf das höchstzulässige Maß begrenzt. Die Flasche kann daher nicht platzen, was insbesondere im Fall von Glasflaschen zu Unfällen, beispielsweise Beschädigung von Augen durch herumfliegende Glassplitter führen kann. Auch bei Kunststoffflaschen ist die Gefahr dann groß, wenn sich in er Flasche eine gefährliche Flüssigkeit befindet. Da mit Flüssigkeit gefüllte Flaschen, beispielsweise Flaschen mit Kohlensäure angereicherter Limonade, in der Regel aufrecht gelagert und transportiert werden, entweicht Überdruck lediglich in Form des Gases, so daß die Flüssigkeit überhaupt nicht entweicht. Dem Vorteil der Vermeidung von Überdruck steht daher lediglich der völlig vernachlässigbare Nachteil des teilweisen Entweichens von Kohlensäure gegenüber.The invention is based on the basic idea of designing the closure in the form of a pressure relief valve which is dimensioned and designed in such a way that no impermissibly high pressures can arise even with larger manufacturing tolerances, such as those which occur in mass production. The escape of gas or liquid from the bottle above a predetermined pressure limits the pressure to the maximum permissible level. The bottle can therefore not burst, which can lead to accidents, for example damage to eyes due to flying glass fragments, particularly in the case of glass bottles. The danger is also great with plastic bottles if there is a dangerous liquid in the bottle. Since bottles filled with liquid, for example bottles of carbonated lemonade, are generally stored and transported upright, excess pressure only escapes in the form of the gas, so that the liquid does not escape at all. The advantage of avoiding excess pressure is therefore only offset by the completely negligible disadvantage of the partial escape of carbon dioxide.

Nach der Lehre des Anspruchs.1 befindet sich an dem Halteteil ein Anschlag zur definierten Anlage des Halteteils an dem Rand des Flaschenhalses. Da das Dichtteil ebenfalls an dem Rand des Flaschenhalses, in der Regel weiter innen, anliegt, ist dadurch die gegenseitige Lage von Halteteil und Dichtteil genau definiert. Da sich zwischen beiden das elastische Element zur Vorspannung des Dichtteils befindet, ist damit auch die Größe der Vorspannung des elastischen Elements genau definiert und damit der Druck, bei dem das Dichtteil abhebt, das Überdruckventil also öffnet.According to the teaching of claim 1, there is a stop on the holding part for the defined contact of the holding part on the edge of the bottle neck. Since the sealing part also lies against the edge of the bottle neck, generally further inside, the mutual position of the holding part and the sealing part is precisely defined. Since the elastic element for pretensioning the sealing element is located between the two, the size of the pretension of the elastic element is also precisely defined and thus the pressure at which the sealing element lifts off, that is to say opens the pressure relief valve.

Das elastische Element kann durch eine biegsame Stange gebildet sein, die mit ihren Enden an dem Halteteil angreift und im mittleren Bereich zwischen den Enden an der der Dichtseite abgewandten Seite des Dichtteils an diesem anliegt. Diese Stange kann aus Metall, insbesondere Stahl bestehen, so daß es so seine elastischen Eigenschaften über lange Zeit beibehält und damit auch der Öffnungsdruck des Überdruckventils über lange Zeit genau festgelegt ist.The elastic element can be formed by a flexible rod, which engages with its ends on the holding part and lies in the middle region between the ends on the side of the sealing part facing away from the sealing side. This rod can be made of metal, in particular steel, so that it retains its elastic properties over a long period of time and thus the opening pressure of the pressure relief valve is precisely defined over a long period.

Das elastische Element kann durch das Dichtteil selbst gebildet sein, indem dieses elastisch, beispielsweise durch dünne Bemessung oder durch entsprechende Materialwahl, ausgebildet ist. Die elastische Nachgiebigkeit kann auch nur teilweise, beispielsweise im Randbereich, bestehen.The elastic element can be formed by the sealing part itself, in that it is designed to be elastic, for example by thin dimensioning or by appropriate choice of material. The elastic compliance can also only partially exist, for example in the edge area.

Halteteil und Dichtteil können über das elastische Element fest miteinander verbunden sein. Diese Verbindung kann auch lösbar sein, z.B. die Form ein er Schnappverbindung haben.Holding part and sealing part can be firmly connected to one another via the elastic element. This connection can also be releasable, e.g. have the shape of a snap connection.

Das Dichtteil kann auch die Form einer starren Scheibe haben. In jedem Fall kann das eleastische Element auch flächig ausgebildet sein, beispielsweise in Form einer Schaumstoffscheibe oder in Form von mehreren, verteilt angeordneten Federlippen oder dergleichen. Insbesondere in den zuletzt genannten Fällen ist es zweckmäßig, an dem Halteteil einen radial nach innen vorspringenden Vorsprung vorzusehen, insbesondere einen umlaufenden Kragen, der das Dichtteil auf der Dichtseite hintergreift und so das Dichtteil weitgehend unverlierbar im Inneren des kappenförmigen Halteteils hält. Auch ist es hierdurch möglich, dem elastischen Element eine Vorspannung zu geben.The sealing part can also have the shape of a rigid disk. In any case, the elastic element can also be flat, for example in the form of a foam disc or in the form of several, distributed spring lips or the like. In the latter cases in particular, it is expedient to have one on the holding part to provide a radially inwardly projecting projection, in particular a circumferential collar, which engages behind the sealing part on the sealing side and thus holds the sealing part largely captively inside the cap-shaped holding part. It is also possible in this way to give the elastic element a prestress.

Alle Teile des Verschlusses können aus Kunststoff oder Metall bestehen, je nach den Anforderungen und der möglichen Wiederverwendbarkeit. Die Verbindung des Halteteils mit dem Flaschenhals kann ebenfalls beliebig sein. Es kann sich um eine reibschlüssige Verbindung handeln, zweckmäßigerweise jedoch um eine formschlüssige Verbindung beliebiger Form, wie sie beispielsweise bei sogenannten Kronenkorken oder Schraubverschlüssen vorkommt.All parts of the closure can be made of plastic or metal, depending on the requirements and the possible reusability. The connection of the holding part to the bottle neck can also be arbitrary. It can be a frictional connection, but expediently a positive connection of any shape, as occurs, for example, in so-called crown caps or screw closures.

Anhand der Zeichnung soll die Erfindung an Ausführungsbeispielen näher erläutert werden.

  • Fig. 1 zeigt ein erstes Ausführungsbeispiel des erfindungsgemäßen Verschlusses in einem Vertikalschnitt auf einem Flaschenhalsteil,
  • Fig. 2 ist ein Schnitt II-II durch Fig. 1,
  • Fig. 3 zeigt in gleicher Darstellung wie Fig. 1 ein zweites Ausführungsbeispiel mit einem Krenenkorken,
  • Fig. 4 zeigt in gleicher Darstellung wie Fig. 1 ein drittes Ausführungsbeispiel,
  • Fig. 5 zeigt ein viertes Ausführungsbeispiel,
  • Fig. 6 ein fünftes Ausführungsbeispiel und
  • Fig. 7 ein sechstes Ausführungsbeispiel.
The invention will be explained in more detail using exemplary embodiments with reference to the drawing.
  • 1 shows a first embodiment of the closure according to the invention in a vertical section on a bottle neck part,
  • Fig. 2 is a section II-II through Fig. 1,
  • 3 shows, in the same representation as FIG. 1, a second exemplary embodiment with a crown cap,
  • 4 shows a third exemplary embodiment in the same representation as FIG. 1,
  • 5 shows a fourth embodiment,
  • Fig. 6 shows a fifth embodiment and
  • Fig. 7 shows a sixth embodiment.

Alle Figuren zeigen Ausführungsbeispiele in gleicher Darstellungsweise, und gleiche oder sich entsprechende Teile sind durchgehend mit gleichen Bezugsziffern versehen.All figures show exemplary embodiments in the same manner of representation, and identical or corresponding parts are provided with the same reference numerals throughout.

Bei dem in den Fig. 1 und 2 in zwei senkrecht aufeinanderstehenden Vertikalschnitten gezeigten Ausführungsbeispiel ist ein oberer Teil eines Flaschenhalses 1 dargestellt, auf dem ein kappenförmiges Halteteil 2 angeordnet ist, das mit einem radial nach innen gerichteten Kragen 3 einen oberen Wulst 4 am Flaschenhals 1 hintergreift und somit das Halteteil hält. In dieser Lage liegt das Halteteil 2 mit einem Anschlag 5 auf einem oberen Rand 6 des Flaschenhalses 1 auf, so daß seine Lage genau definiert ist.In the embodiment shown in FIGS. 1 and 2 in two vertical sections perpendicular to each other, an upper part of a bottle neck 1 is shown on which a cap-shaped holding part 2 is arranged, which has a radially inwardly directed collar 3 and an upper bead 4 on the bottle neck 1 reaches behind and thus holds the holding part. In this position, the holding part 2 lies with one Stop 5 on an upper edge 6 of the bottle neck 1, so that its position is precisely defined.

Im Bereich des Bodens des kappenförmigen Halteteils 2 befindet sich eine runde Ausnehmung 7, durch die sich diametral eine runde Stange 8 erstreckt, die mit dem Halteteil 2 aus einem Stück besteht, mit diesem zusammen also aus Kunststoff gepreßt ist. Im mittleren Bereich der Stange 8 wird diese formschlüssig von zwei Lippen 9 lösbar umgriffen, die sich an einem Dichtteil 10 befinden, das im wesentlichen eine starre Scheibe bildet, die an ihren Rändern eine kegelige, ringförmige Dichtfläche 11 aufweist, die an dem inneren Teil des Randes 6 des Flaschenhalses 1 dicht anliegt. Gegebenenfalls kann diese kegelige Dichtfläche noch mit einem weichen Dichtmaterial beschichtet sein.In the area of the bottom of the cap-shaped holding part 2 there is a round recess 7, through which a round rod 8 extends diametrically, which consists of the piece with the holding part 2, so that it is pressed together from plastic. In the central area of the rod 8, this is positively releasably gripped by two lips 9, which are located on a sealing part 10, which essentially forms a rigid disc, which has a conical, annular sealing surface 11 on its edges, which on the inner part of the Edge 6 of the bottle neck 1 fits tightly. If necessary, this conical sealing surface can also be coated with a soft sealing material.

Die Lage des beschlages 5, des Dichtteils 10 und der Stange 8 sind so, daß sich die Stange 8 in der dargestellten Schließlage unter einer Vorspannung befindet, die im Zusammenhang mit der Fläche des Dichtteils 10 den Druck bestimmt, bei dem sich das Dichtteil 10 aufgrund des pneumatischen oder hydraulischen Drucks anhebt und einen Überdruck entweichen läßt.The position of the fitting 5, the sealing part 10 and the rod 8 are such that the rod 8 is in the closed position shown under a bias which, in connection with the surface of the sealing part 10, determines the pressure at which the sealing part 10 is due of the pneumatic or hydraulic pressure and allows excess pressure to escape.

Bei dem zweiten Ausführungsbeispiel gemäß Fig. 3 hat das Halteteil die Form einer Kronenkappe 12, die sich mit kronenförmigen Einbiegungen 13 an dem Wulst 4 des Flaschenhalses 1 hält und sich dabei mit einem durch eine Eindrückung gebildeten beschlag 14 an dem oberen Rand 6 des Flaschenhalses 1 abstützt, wodurch ihre Lage in bezug zu dem Flaschenhals genau definiert ist. In dieser Lage ist die Kronenkappe 12 nicht dicht mit dem Flaschenhals 1 verbunden.In the second exemplary embodiment according to FIG. 3, the holding part has the shape of a crown cap 12, which is held in place by crown-shaped indentations 13 on the bead 4 of the bottle neck 1 and thereby engages with a fitting 14 formed by an indentation on the upper edge 6 of the bottle neck 1 supports, whereby their position in relation to the bottle neck is precisely defined. In this position, the crown cap 12 is not tightly connected to the bottle neck 1.

Zur Abdichtung der Öffnung des Flaschenhalses dient bei diesem Ausführungsbeispiel ein das Dichtteil bildender Teller 15, der zentral über eine Stütze 16 mit einem Boden 17 der Kronenkappe 12 fest verbunden ist. An seinem Rand weist der Teller 15 eine umlaufende Dichtlippe 18 auf, die an dem oberen Rand 6 des Flaschenhalses 1 anliegt. Teller 15 und Dichtlippe 18 sind aus einem elastisch nachgiebigen Material und so dünn bemessen, daß der äußere Rand des Tellers 15 nachgeben und die umlaufende Dichtlippe 18 sich abheben kann, so daß Überdruck entweichen kann. Die Kronenkappe 12 kann in herkömmlicher Weise aus Blech bestehen, während insbesondere der Teller 15 mit der umlaufenden Dichtlippe 18 aus einem Kunststoffmaterial besteht. Es ist aber auch ein anderes Material, beispielsweise Blech, möglich.To seal the opening of the bottle neck is used in this embodiment, the plate 15 forming the sealing part, which is centrally connected via a support 16 to a bottom 17 of the crown cap 12. At its edge, the plate 15 has a circumferential sealing lip 18 which bears against the upper edge 6 of the bottle neck 1. Plate 15 and sealing lip 18 are made of an elastically resilient material and so thin that the outer edge of the plate 15th yield and the circumferential sealing lip 18 can stand out, so that excess pressure can escape. The crown cap 12 can consist of sheet metal in a conventional manner, while in particular the plate 15 with the circumferential sealing lip 18 consists of a plastic material. Another material, for example sheet metal, is also possible.

Bei dem dritten Ausführungsbeispiel gemäß Fig. 4 ist das Dichtteil 2 im Prinzip wie bei dem Ausführungsbeispiel gemäß Fig. 2 ausgebildet, jedoch ist ein Boden 19 des Halteteils 2 vorgesehen, ähnlich wie der Boden 17 bei dem Ausführungsbeispiel gemäß Fig. 3. Um ein sicheres Entweichen von Überdruck durch das Halteteil 2 hindurch sicherzustellen, ist ein Loch 20 in dem Boden 19 vorgesehen.In the third exemplary embodiment according to FIG. 4, the sealing part 2 is designed in principle as in the exemplary embodiment according to FIG. 2, but a bottom 19 of the holding part 2 is provided, similar to the bottom 17 in the exemplary embodiment according to FIG. 3 To ensure escape of excess pressure through the holding part 2, a hole 20 is provided in the bottom 19.

An dem Boden 16 befindet sich eine Stütze 21, die über eine kugelige Schnappverbindung 22 mit einem Teller 23 verbunden ist, der dem Teller 15 in Fig. 3 entspricht und aus enem nachgiebigen Material besteht, so daß sich insbesondere die Ränder des Tellers 23 bei Überdruck von dem Rand 6 des Flaschenhalses 1 abheben können. Es ist bei dieser Ausführungsform auch möglich, den Boden 19 sehr dünn und elastisch nachgiebig auszubilden, so daß dieser das Federelement bildet, in welchem Falle der Teller 23 starr sein kann. Gegebenenfalls können Boden 19 und Teller 23 in gewünschter Weise elastisch nachgiebig sein.At the bottom 16 there is a support 21 which is connected via a spherical snap connection 22 to a plate 23 which corresponds to the plate 15 in Fig. 3 and consists of a resilient material, so that in particular the edges of the plate 23 at excess pressure can lift off the edge 6 of the bottle neck 1. In this embodiment, it is also possible to design the base 19 to be very thin and resilient, so that it forms the spring element, in which case the plate 23 can be rigid. Optionally, the bottom 19 and plate 23 can be elastically flexible in the desired manner.

Bei dem vierten Ausführungsbeispiel gemäß Fig. 5 ist das Halteteil 2 im wesentlichen wie bei dem Ausführungsbeispiel gemäß Fig. 4 ausgebildet, jedoch ist ein starres, scheibenförmiges Dichtteil 24 vorgesehen, das durch elastische Federlippen 25 an dem Boden 19 federnd abestützt ist. Bei diesem Ausführungsbeispiel erstreckt sich von dem Anschlag 5 aus nach innen ein umlaufender Kragen 26, der den äußeren Rand des Dichtteils 24 hintergreift, so daß das Dichtteil 24 unverlierbar mit Halteteil 2 verbunden ist.In the fourth exemplary embodiment according to FIG. 5, the holding part 2 is designed essentially as in the exemplary embodiment according to FIG. 4, but a rigid, disk-shaped sealing part 24 is provided, which is resiliently supported on the base 19 by elastic spring lips 25. In this embodiment, a circumferential collar 26 extends inward from the stop 5 and engages behind the outer edge of the sealing part 24, so that the sealing part 24 is captively connected to the holding part 2.

Das fünfte Ausführungsbeispiel in Fig. 6 entspricht weitgehend dem gemäß Fig. 5 mit dem Unterschied, daß statt der Dichtlippen 25 in den Zwischenraum zwischen dem Boden 19 und dem Dichtteil 24 ein Federstab 27 in Form einer vorgekrümmten Blattfeder angeordnet ist. Durch Dimensionierung und Krümmung des Federstabes 27 ist die Federkraft definiert, die den Überdruck bestimmt, bei dem sich das Dichtteil 24 anhebt, um Überdruck entweichen zu lassen.The fifth exemplary embodiment in FIG. 6 largely corresponds to that according to FIG. 5 with the difference that instead of the sealing lips 25 in the space between the bottom 19 and the sealing part 24, a spring rod 27 is arranged in the form of a pre-curved leaf spring. The dimensioning and curvature of the spring rod 27 defines the spring force, which determines the excess pressure at which the sealing part 24 rises in order to allow excess pressure to escape.

Das sechste Ausführungsbeispiel in Fig. 7 entspricht weitgehend dem gemäß Fig. 3. Ein Unterschied besteht darin, daß statt des nachgiebigen Tellers 15 ein im wesentlichen starres Dichtteil 28 vorgesehen ist, das sich über ein elastisch nachgiebiges Schaumstoffteil 29 an dem Boden 17 der Kronenkappe 12 abstützt. Das Schaumstoffteil 29 kann einfach mit den benachbarten Flächenteilen verklebt sein, so daß das Dichtteil 28 fest und unverlierbar mit dem Boden 17 und damit mit der Kronenkappe 12 verbunden ist.The sixth exemplary embodiment in FIG. 7 largely corresponds to that according to FIG. 3. A difference is that instead of the flexible plate 15, an essentially rigid sealing part 28 is provided, which is located on the bottom 17 of the crown cap 12 via an elastically flexible foam part 29 supports. The foam part 29 can simply be glued to the adjacent surface parts, so that the sealing part 28 is firmly and captively connected to the base 17 and thus to the crown cap 12.

Claims (14)

1. A stopper for a bottle or the like, having a cap-shaped retaining part (2), having an inwardly directed projection or collar (3) for engaging behind an outer beading (4) of a bottle neck (1) and having a sealing part (10), separated from the retaining part (2) and connected thereto via an elastic member, having an annular sealing surface to abut an end surface of the bottle neck (1),
characterised in that the retaining part (2) comprises a stop (5) for the defined abutment of the retaining part (2) on the edge (6) of the bottle neck (1), so that the sealing part rises from the bottle neck with a precisely defined excess pressure and thus opens the stopper.
2. A stopper according to Claim 1,
characterised in that the elastic member is formed by a flexible bar (8), which engages with its ends at the cylindrical retaining part (2) and is supported thereon in the region between the ends on the side of sealing part (10) remote from the sealing side.
3. A stopper according to Claim 1,
characterised in that the sealing part is a dish (15, 23), which is preferably elastic in the region of its edge and is supported centrally via a support (16, 21) opposite the retaining part (2).
4. A stopper according to Claim 3,
characterised in that the dish (15, 23) is securely connected to the retaining part (12, 2) via the support (16, 21).
5. A stopper according to Claim 4,
characterised in that the dish (23) is connected to the support (21) and/or the support is connected to the retaining part via a snap contact (22).
6. A stopper according to Claim 3,
characterised in that the support (16) and the dish (15) form one part.
7. A stopper according to Claim 1,
characterised in that the sealing part (10) takes the form of a substantially inflexible disk.
8. A stopper according to Claim 1,
characterised in that the elastic member (29) is disposed in one plane and between the sealing part (28) and the base (17) of the cap-shaped retaining part (12).
9. A stopper according to Claim 8,
characterised in that the elastic member (29) is formed by foam or elastic projections, lips (25) or the like disposed on the sealing part or base (19) of the cap-shaped retaining part (2).
10. A stopper according to Claim 1,
characterised in that on the retaining part (2) there is provided a radially inwardly projecting protrusion, more particularly a circular collar (26), which engages behind the sealing part (2) on the sealing side.
11. A stopper according to Claim 7,
characterised in that the disk-shaped sealing part (10) is not much larger than the clear width of the bottle neck (1).
12. A stopper according to Claim 1,
characterised in that the retaining part and/or the sealing part and/or the elastic member (8) are made of plastic.
13. A stopper according to Claim 2,
characterised in that the flexible bar (8) is made from metal, more particularly of steel.
14. A stopper according to Claim 13,
characterised in that the bar has a round or angular, more particularly a flat rectangular, cross section.
EP88901241A 1987-02-12 1988-01-15 Closure for a bottle or similar Expired - Lifetime EP0301053B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88901241T ATE63521T1 (en) 1987-02-12 1988-01-15 CAP FOR A BOTTLE OR THE LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8717026U DE8717026U1 (en) 1987-02-12 1987-02-12 Closure for a bottle or similar
DE8717026U 1987-02-12

Publications (2)

Publication Number Publication Date
EP0301053A1 EP0301053A1 (en) 1989-02-01
EP0301053B1 true EP0301053B1 (en) 1991-05-15

Family

ID=6815526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88901241A Expired - Lifetime EP0301053B1 (en) 1987-02-12 1988-01-15 Closure for a bottle or similar

Country Status (6)

Country Link
EP (1) EP0301053B1 (en)
AT (1) ATE63521T1 (en)
AU (1) AU606658B2 (en)
DE (1) DE3744292A1 (en)
HU (1) HU205580B (en)
WO (1) WO1988006130A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813275A1 (en) * 1988-04-20 1989-11-02 Christoph Roesch Crown cap closure for a bottle
FR2659482B1 (en) * 1990-03-08 1995-01-27 Pirelli Cables DEGASSER HOOD FOR AN END OF ELECTRICAL CABLE, AND CABLE THUS EQUIPPED.
DE4122783C2 (en) * 1990-07-12 2001-06-21 Michael Hertrampf Closure for a bottle or the like
DE9117270U1 (en) * 1991-08-09 1998-12-10 Hertrampf, Michael, Dr., 30989 Gehrden Screw cap for closing a bottle or the like.
DE4216151A1 (en) * 1992-05-15 1993-11-18 Michael Dr Med Hertrampf Screw cap for closing a bottle or the like
DE4226935A1 (en) * 1992-08-14 1994-02-17 Berolina Kunststoff Closure cap with elastic seal and safety pressure release - has indentation in inner bearing face of cap connecting with outside air and taking up seal section when pressure in container is too strong.
DE4320091A1 (en) * 1993-06-17 1994-12-22 Robert Ian Harris Closure cap
ITUB20160565A1 (en) * 2016-02-08 2017-08-08 Davide Franzosi CLOSING OR CAP ELEMENT, IN PARTICULAR FOR BOTTLES OR SIMILAR CONTAINERS

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH220476A (en) * 1941-06-04 1942-04-15 Graber Otto Vascular closure.
FR1003613A (en) * 1947-01-31 1952-03-20 Container closure
US2514124A (en) * 1947-11-20 1950-07-04 Gutmann & Co Ferd Receptacle closure
FR1101388A (en) * 1954-05-26 1955-10-05 Javel Grosjean Bottle stopper
US2790570A (en) * 1954-07-29 1957-04-30 Fridolin A Hodges Pressure sealing and excessive pressure relieving closure cap for containers
GB872981A (en) * 1959-02-02 1961-07-19 Kork N Seal Ltd Improvements in or relating to caps for bottles and like containers and closure members for such caps
US3110599A (en) * 1961-01-30 1963-11-12 Edward M Kusinski Method of preserving foods and closure cap utilized therein
DE1432224A1 (en) * 1962-07-23 1968-11-21 Patton Franklin Seville Vent seal for a closure
GB1072104A (en) * 1964-04-20 1967-06-14 Kork N Seal Ltd Closure member
US3319836A (en) * 1966-03-14 1967-05-16 Colgate Palmolive Co Spill-proof bottle closure
US3976216A (en) * 1974-12-26 1976-08-24 Thermo Electron Corporation Sterile bottle closure
US4210255A (en) * 1978-06-30 1980-07-01 The Continental Group, Inc. Self-venting end unit for pressure packaging
DE3344876A1 (en) * 1983-12-12 1985-06-13 Siemens AG, 1000 Berlin und 8000 München Closure for sample bottles

Also Published As

Publication number Publication date
DE3744292A1 (en) 1988-08-25
AU606658B2 (en) 1991-02-14
HU205580B (en) 1992-05-28
EP0301053A1 (en) 1989-02-01
WO1988006130A1 (en) 1988-08-25
HUT52445A (en) 1990-07-28
DE3744292C2 (en) 1989-12-28
ATE63521T1 (en) 1991-06-15
HU881323D0 (en) 1990-05-28
AU1224688A (en) 1988-09-14

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