EP0308753B1 - Bottle cap, particularly for threaded-mouth sparkling-wine bottles - Google Patents

Bottle cap, particularly for threaded-mouth sparkling-wine bottles Download PDF

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Publication number
EP0308753B1
EP0308753B1 EP88114811A EP88114811A EP0308753B1 EP 0308753 B1 EP0308753 B1 EP 0308753B1 EP 88114811 A EP88114811 A EP 88114811A EP 88114811 A EP88114811 A EP 88114811A EP 0308753 B1 EP0308753 B1 EP 0308753B1
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EP
European Patent Office
Prior art keywords
bottle
sealing
cap
neck
thread
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
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EP88114811A
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German (de)
French (fr)
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EP0308753A1 (en
Inventor
Bernd Pfefferkorn
Hans Pfefferkorn
Viktor Reiter
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Pfefferkorn and Co GmbH
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Pfefferkorn and Co GmbH
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Priority to AT88114811T priority Critical patent/ATE66885T1/en
Publication of EP0308753A1 publication Critical patent/EP0308753A1/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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
    • B65D41/0421—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck and combined with integral sealing means contacting other surfaces of a container neck
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
    • B65D39/0023—Plastic cap-shaped hollow plugs

Definitions

  • the invention relates to a bottle stopper, in particular for sparkling wine bottles with a screw-thread mouth, in which the closure body, which is formed in one piece from plastic, has a sealing shaft which plugs into the bottle neck and extends centrally from the bottom inner surface of a cap, the outer wall of which is provided with a thread on its inner surface , which can be brought into engagement with the external thread of the bottle neck, and which sealing shaft protrudes beyond the area bearing the thread, that a bead surrounding the bottle neck is provided at the upper end of the bottle neck and the external thread of the bottle neck is provided between this bead and the upper edge of the bottle neck is, the lower edge of the cap completely or partially covers the bead when the bottle cap is closed.
  • Screw-on bottle caps are used for a wide variety of applications (cf. US-PS 3074579, FR-OS 2306895, FR-PS 1030600). However, most of these bottle caps are not suitable for champagne bottles.
  • the generic bottle caps are mainly used for small sparkling wine bottles of 0.2 l.
  • a disadvantage of some of the known bottle closures is that they do not have the typical "plop" effect when opening, which is characteristic of champagne bottles.
  • bottle closures of the generic type which emit a "pop" sound when the champagne bottle is opened (DE-OS-2614538; EP-B 0079552).
  • a sealing rib lies at the level of the last gear of a multi-thread or beyond it on the projecting section.
  • the disadvantage of this bottle stopper is that the "plop" noise is not always guaranteed, despite the relatively elaborate sealing stem, because when the sealing rib reaches the upper edge of the bottle neck, this sealing rib can tilt so that CO2 already escapes on one side, while on the other side the sealing rib still seals well.
  • a bottle stopper which has a sealing shaft with a smooth outer surface, is also known (DE-OS 2833099).
  • this bottle stopper does not have an internal thread, but a plurality of radially inwardly directed lamellae on the inside of a cap.
  • a bottle stopper which also has a substantially smooth shaft, is known from US-PS 2717728. However, this closure has no internal thread with which it can be screwed onto a bottle.
  • a bottle stopper which has a smooth sealing shaft and which is provided with a rod protruding into a bottle (US Pat. No. 2582721).
  • this bottle stopper does not have a sealing lip between the upper end of the sealing shaft and the first turn of its inner thread. It also does not cover the bulge of a bottle neck when the bottle is closed.
  • Bottle caps with screw threads are also known which have a sealing lip (US Pat. No. 4,090,631, US Pat. No. 4,450,973, US Pat. No. 4,644,088, US Pat. No. 3074579).
  • these bottle caps cannot make a "pop" sound because they do not have a stem that goes beyond its screw thread.
  • the invention has for its object to provide a bottle cap that has a simply constructed sealing shaft and still generates a safe "pop" sound when opening a champagne bottle.
  • the sealing shaft has a smooth outer surface and that a sealing lip is provided between the upper shoulder of the sealing shaft and the first thread of the inner thread, which rests on the upper edge of the bottle when the bottle closure is closed.
  • the advantage achieved with the invention is in particular that a "pop" effect is produced by the combination of the upper sealing lip with the outer smooth sealing shaft with a very good seal.
  • a special sealing rib is not necessary because it already has the fact that the lower edge of the sealing shaft lies below the last thread of the thread is sufficient for the "plop" effect.
  • the bottles have a bulge on the inside of their upper edge, so that the best seal is always where this bulge is located.
  • Another advantage of the invention is that the bottle cap fits the usual bottle thread and no special production of bottles is required.
  • the closure can be applied very tightly because the lower part of the cap covers the outer bottle neck bead and does not rest on it. The outer bottle neck bead can therefore not take on the function of a stop which prevents the bottle cap from rotating further.
  • FIG. 1 shows a 0.2 l champagne bottle 1 with a bottle stopper 2 according to the invention.
  • This champagne bottle 1 has a bead 4 at the end of its neck 3, above which two gears 5, 6 of a thread 7 can be seen.
  • the bottle stopper 2 is essentially dome-shaped and has an inward bevel 8 at its lower edge.
  • the surface of the bottle stopper 2 is provided with several elevations 9 which prevent the fingers from slipping off when the stopper 2 is screwed on or unscrewed.
  • the bottle stopper 2 is shown again on a somewhat enlarged scale, namely screwed onto the bottle neck 3. It can be seen here that the part of the bottle stopper 2 having the bevel 8 covers the bead 4 of the bottle neck 3.
  • FIG. 3 shows a representation largely corresponding to FIG. 2, although the bottle closure 2 is shown in section.
  • the wall thickness of the bottle neck 3 is indicated by dashed lines.
  • the upper edge of the bottle neck 3 has an inward curvature 10.
  • the bottle stopper 2 has on its inside winding passages 11, 12 which engage in the spaces between the passages 5, 6 of the bottle neck 3.
  • a sealing shaft 13 entering the bottle neck 3 like a plug extends vertically downward from the bottom 14 of a cap 25 of the bottle stopper 2. Between the upper turn 11 of the cap 25 and the sealing shaft 13 there is a sealing lip 15 which, when the bottle 1 is closed, rests on the upper edge 16 of the bottle neck 3.
  • the bottle stopper 2 is shown in a greatly enlarged scale and in section. It is clearly visible here that the bottle cap essentially consists of the sealing shaft 13 and the cap 25. It can also be seen that the lower edge 17 of the sealing shaft 13 is arranged below the lowermost turn 12, but above the lower edge 18 of the cap 25.
  • a bevel 19 is provided, which facilitates the insertion of the sealing shaft 13 into the bottle neck.
  • the outer surface 20 of the sealing shaft 13 is smooth and essentially parallel to the imaginary longitudinal axis of the bottle stopper 2.
  • the inner surface 21 of the sealing shaft 13 is also smooth and runs parallel to the outer surface 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

The invention relates to a bottle closure which is suitable, in particular, for champagne bottles having threaded mouths. This bottle closure is unitary made and is of plastic and has a stopper like sealing shank, with a smooth exterior, which penetrates into the neck of the bottle. A cap comprising an internal thread which is adapted to the external thread of the bottle is provided around the sealing shank. The latter projects somewhat beyond the thread of the cap so that, when the bottle closure is opened, a "plop" which is a typical noise of a champagne bottle, is produced. The bottle itself has a bead which, when the bottle closure is in place, is covered by the lower end of the cap. Between the uppermost turn of the thread of the cap and the beginning of the sealing shank on the cap there is provided a sealing lip which, when the bottle closure is in place, bears upon the upper edge of the neck of the bottle.

Description

Die Erfindung betrifft einen Flaschenverschluß, insbesondere für Sektflaschen mit Schraubgewinde-Mündung, bei welchem der einstückig aus Kunststoff ausgebildete Verschlußkörper einen stopfenartig in den Flaschenhals eintretenden Abdichtungsschaft besitzt, der zentrisch von der Bodeninnenfläche einer Kappe ausgeht, deren Mantelwandung auf ihrer Innenfläche mit einem Gewinde ausgestattet ist, das mit dem Außengewinde des Flaschenhalses in Eingriff gebracht werden kann, und welcher Abdichtungsschaft über den das Gewinde tragenden Bereich vorsteht, daß am oberen Ende des Flaschenhalses ein den Flaschenhals umgebender Wulst vorgesehen ist und zwischen diesem Wulst und dem oberen Flaschenhalsrand das Außengewinde des Flaschenhalses vorgesehen ist, wobei die Unterkante der Kappe bei geschlossenem Flaschenverschluß den Wulst ganz oder teilweise überdeckt.The invention relates to a bottle stopper, in particular for sparkling wine bottles with a screw-thread mouth, in which the closure body, which is formed in one piece from plastic, has a sealing shaft which plugs into the bottle neck and extends centrally from the bottom inner surface of a cap, the outer wall of which is provided with a thread on its inner surface , which can be brought into engagement with the external thread of the bottle neck, and which sealing shaft protrudes beyond the area bearing the thread, that a bead surrounding the bottle neck is provided at the upper end of the bottle neck and the external thread of the bottle neck is provided between this bead and the upper edge of the bottle neck is, the lower edge of the cap completely or partially covers the bead when the bottle cap is closed.

Die lange Zeit üblichen Korkverschlüsse für Getränkebehälter werden immer mehr durch aus elastischem Kunststoff gefertigte Verschlußstopfen ersetzt, da diese neben ihrer Billigkeit auch den Einsatz von Verschluß- und Abfüllautomaten ermöglichen, weil derartige aus elastischem Kunststoff gefertigte Verschlußstopfen sowohl, was ihre Beschaffenheit als auch was ihre Maßhaltigkeit betrifft, eine stets gleichbleibende Güte gewährleisten. Diese ist aber gerade für automatische Verschlußmaschinen notwendig, weil sonst durch Stopfenfehler Unterbrechungen im Betriebsablauf vorkommen und Beschädigungen der Behälter selbst nicht vermieden werden können.The long-established cork closures for beverage containers are increasingly being replaced by sealing plugs made of elastic plastic, since, in addition to their cheapness, they also allow the use of automatic sealing and filling machines, because such sealing plugs made of elastic plastic have both their quality and their dimensional accuracy concerns, ensure a constant quality. However, this is particularly necessary for automatic sealing machines, because otherwise stoppages in the operational sequence occur due to plug errors and damage to the container itself cannot be avoided.

Sind in dem betreffenden Behälter Flüssigkeiten eingefüllt, die nach dem Verschließen einen bestimmten Innendruck erzeugen, wie beispielsweise Sekt, so müssen besondere Sicherungsvorrichtungen getroffen werden, die ein selbständiges Öffnen des Behälters, etwa durch Herausdrücken des Stopfens verhindern. Bekannt sind um den Stopfen herumgelegte Drahtbügel oder sonstige Metallbänder, mit denen der Stopfen an der Behältermündung festgehalten wird.If liquids are filled into the container in question, which produce a certain internal pressure after being closed, such as sparkling wine, special safety devices must be taken to prevent the container from opening automatically, for example by pushing out the stopper. Wire brackets or other metal strips are known which are placed around the stopper and are used to hold the stopper to the container mouth.

Da das Anbringen solcher zusätzlicher Verschlußmittel auch einen zusätzlichen und damit den Abfüllvorgang verteuernden Arbeitsgang mit sich bringt, ist es auch schon bekannt, die Behältermündung mit einem Außengewinde zu versehen, auf das die Verschlußkappe aufgeschraubt wird.Since the attachment of such additional closure means also involves an additional operation, which thus makes the filling process more expensive, it is also known to provide the container mouth with an external thread onto which the closure cap is screwed.

Aufschraubbare Flaschenverschlüsse werden für die verschiedensten Anwendungsfälle verwendet (vgl. US-PS 3074579, FR-OS 2306895, FR-PS 1030600). Die meisten dieser Flaschenverschlüsse sind jedoch nicht für Sektflaschen geeignet.Screw-on bottle caps are used for a wide variety of applications (cf. US-PS 3074579, FR-OS 2306895, FR-PS 1030600). However, most of these bottle caps are not suitable for champagne bottles.

Die gattungsgemäßen Flaschenverschlüsse kommen hauptsächlich bei kleinen Sektflaschen von 0,2 l zur Anwendung.The generic bottle caps are mainly used for small sparkling wine bottles of 0.2 l.

Nachteilig ist bei einigen der bekannten Flaschenverschlüsse (vgl. FR-OS 2306896), daß sie nicht den typischen "Plopp"-Effekt beim Öffnen aufweisen, der für Sektflaschen charakteristisch ist.A disadvantage of some of the known bottle closures (cf. FR-OS 2306896) is that they do not have the typical "plop" effect when opening, which is characteristic of champagne bottles.

Es sind indessen auch Flaschenverschlusse der gattungsgemäßen Art bekannt, die beim Öffnen der Sektflasche ein "Plopp"-Geräusch abgeben (DE-OS-2614538; EP-B 0079552). Bei diesem Flaschenverschluß liegt eine Abdichtungsrippe auf der Höhe des letzten Ganges eines mehrgängig gestalteten Gewindes oder jenseits desselben auf dem vorstehenden Abschnitt. Nachteilig ist bei diesem Flaschenverschluß, daß das "Plopp"-Geräusch trotz des relativ aufwendig gestalteten Abdichtungsschafts nicht immer gewährleistet ist, weil sich dann, wenn die Abdichtungsrippe an den oberen Rand des Flaschenhalses gelangt, diese Abdichtungsrippe verkanten kann, so daß auf einer Seite bereits CO₂ entweicht, während auf der anderen Seite die Abdichtrippe noch gut abdichtet.However, bottle closures of the generic type are known which emit a "pop" sound when the champagne bottle is opened (DE-OS-2614538; EP-B 0079552). In this bottle stopper, a sealing rib lies at the level of the last gear of a multi-thread or beyond it on the projecting section. The disadvantage of this bottle stopper is that the "plop" noise is not always guaranteed, despite the relatively elaborate sealing stem, because when the sealing rib reaches the upper edge of the bottle neck, this sealing rib can tilt so that CO₂ already escapes on one side, while on the other side the sealing rib still seals well.

Bei einem bekannten Schraubverschluß für einen Behälter ist bekannt, einen gewölbten Abdichtungsschaft vorzusehen, der nicht eine Mehrzahl von Abdichtungsrippen aufweist (DE-OS 3008838). Dieser Schraubverschluß weist auch noch eine Dichtungslippe auf, die im verschlossenen Zustand auf dem oberen Rand des Behälters aufliegt. Nachteilig ist bei diesem Verschluß jedoch, daß er kein "Plopp"-Geräusch verursachen kann, weil sein Abdichtungsschaft nicht über die letzte Windung des Schraubverschlusses hinausragt.In a known screw closure for a container it is known to provide a curved sealing shaft which does not have a plurality of sealing ribs (DE-OS 3008838). This screw closure also has a sealing lip which, when closed, rests on the upper edge of the container. A disadvantage of this closure, however, is that it cannot cause a "pop" noise because its sealing shaft does not protrude beyond the last turn of the screw closure.

Ein ähnlicher Schraubverschluß, bei dem der Abdichtungsschaft nicht gewölbt ist, sondern an der Innenwand eines Behälters satt anliegt, ist ebenfalls bekannt (DE-OS 3218671). Dieser Schraubverschluß ist jedoch nicht für Sektflaschen verwendbar, weil er keine kuppelförmige Kappe aufweist.A similar screw closure, in which the sealing shaft is not curved, but fits snugly against the inner wall of a container, is also known (DE-OS 3218671). However, this screw cap cannot be used for champagne bottles because it does not have a dome-shaped cap.

Ein Flaschenverschluß, der einen Abdichtungsschaft mit einer glatten Außenfläche besitzt, ist ebenfalls bekannt (DE-OS 2833099). Dieser Flaschenverschluß besitzt jedoch kein Innengewinde, sondern auf der Innenseite einer Kappe mehrere radial nach innen gerichtete Lamellen.A bottle stopper, which has a sealing shaft with a smooth outer surface, is also known (DE-OS 2833099). However, this bottle stopper does not have an internal thread, but a plurality of radially inwardly directed lamellae on the inside of a cap.

Ein Flaschenverschluß, der ebenfalls einen im wesentlichen glatten Schaft besitzt, ist aus der US-PS 2717728 bekannt. Dieser Verschluß besitzt jedoch kein Innengewinde, mit dem er auf eine Flasche geschraubt werden könnte.A bottle stopper, which also has a substantially smooth shaft, is known from US-PS 2717728. However, this closure has no internal thread with which it can be screwed onto a bottle.

Weiterhin ist ein Flaschenverschluß bekannt, der einen glatten Abdichtungsschaft aufweist und der mit einem in eine Flasche hineinragenden Stab versehen ist (US-PS 2582721). Dieser Flaschenverschluß besitzt jedoch keine Abdichtungslippe zwischen dem oberen Ende des Abdichtungsschafts und der ersten Windung seines inneren Gewindes. Auch überdeckt er nicht den Wulst eines Flaschenhalses, wenn die Flasche verschlossen ist.Furthermore, a bottle stopper is known which has a smooth sealing shaft and which is provided with a rod protruding into a bottle (US Pat. No. 2582721). However, this bottle stopper does not have a sealing lip between the upper end of the sealing shaft and the first turn of its inner thread. It also does not cover the bulge of a bottle neck when the bottle is closed.

Ferner sind Flaschenverschlüsse mit Schraubgewinde bekannt, die eine Abdichtlippe aufweisen (US-PS 4090631, US-PS 4450973, US-PS 4645088, US-PS 3074579). Diese Flaschenverschlüsse können jedoch kein "Plopp"-Geräusch verursachen, weil sie keinen Schaft besitzen, der über sein Schraubgewinde hinausgeht.Bottle caps with screw threads are also known which have a sealing lip (US Pat. No. 4,090,631, US Pat. No. 4,450,973, US Pat. No. 4,644,088, US Pat. No. 3074579). However, these bottle caps cannot make a "pop" sound because they do not have a stem that goes beyond its screw thread.

Der Erfindung liegt die Aufgabe zugrunde, einen Flaschenverschluß zu schaffen, der einen einfach gebauten Abdichtungsschaft aufweist und trotzdem ein sicheres "Plopp"-Geräusch beim Öffnen einer Sektflasche erzeugt.The invention has for its object to provide a bottle cap that has a simply constructed sealing shaft and still generates a safe "pop" sound when opening a champagne bottle.

Diese Aufgabe wird dadurch gelöst, daß der Abdichtungsschaft eine glatte Außenfläche besitzt und daß zwischen dem oberen Ansatz des Abdichtungsschafts und dem ersten Gang des inneren Gewindes eine Dichtungslippe vorgesehen ist, die bei geschlossenem Flaschenverschluß auf der Oberkante der Flasche aufliegt.This object is achieved in that the sealing shaft has a smooth outer surface and that a sealing lip is provided between the upper shoulder of the sealing shaft and the first thread of the inner thread, which rests on the upper edge of the bottle when the bottle closure is closed.

Der mit der Erfindung erzielte Vorteil besteht insbesondere darin, daß durch die Kombination der oberen Dichtlippe mit dem äußeren glatten Abdichtungsschaft bei sehr guter Dichtung ein "Plopp"-Effekt erzeugt wird. Eine besondere Abdichtungsrippe ist nicht erforderlich, weil bereits der Umstand, daß die Unterkante des Abdichtungsschafts unterhalb des letzten Ganges des Gewindes liegt, für den "Plopp"-Effekt ausreicht. Hinzu kommt, daß in den meisten Fällen die Flaschen auf der Innenseite ihrer Oberkante einen Wulst besitzen, so daß sich die beste Dichtung stets dort befindet, wo dieser Wulst sitzt. Ein weiterer Vorteil der Erfindung besteht darin, daß der Flaschenverschluß auf die üblichen Flaschengewinde paßt und keine Sonderanfertigung von Flaschen erforderlich wird. Außerdem kann der Verschluß sehr stramm aufgebracht werden, weil der untere Teil der Kappe den äußeren Flaschenhalswulst überdeckt und nicht auf diesem aufsitzt. Der äußere Flaschenhalswulst kann somit nicht die Funktion eines Anschlags übernehmen, der eine weitere Drehung des Flaschenverschlusses verhindert.The advantage achieved with the invention is in particular that a "pop" effect is produced by the combination of the upper sealing lip with the outer smooth sealing shaft with a very good seal. A special sealing rib is not necessary because it already has the fact that the lower edge of the sealing shaft lies below the last thread of the thread is sufficient for the "plop" effect. In addition, in most cases the bottles have a bulge on the inside of their upper edge, so that the best seal is always where this bulge is located. Another advantage of the invention is that the bottle cap fits the usual bottle thread and no special production of bottles is required. In addition, the closure can be applied very tightly because the lower part of the cap covers the outer bottle neck bead and does not rest on it. The outer bottle neck bead can therefore not take on the function of a stop which prevents the bottle cap from rotating further.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

Fig. 1
eine 0,2 l-Sektflasche mit einem Flaschenverschluß aus Kunststoff im unverschlossenen Zustand;
Fig. 2
einen Flaschenhals mit aufgeschraubtem Flaschenverschluß;
Fig. 3
eine Darstellung wie in Fig. 2, jedoch mit geschnittenem Flaschenverschluß;
Fig. 4
eine stark vergrößerte Darstellung eines geschnittenen Flaschenverschlusses.

An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:
Fig. 1
a 0.2 l champagne bottle with a plastic bottle cap in the unsealed state;
Fig. 2
a bottle neck with a screwed-on bottle cap;
Fig. 3
an illustration as in Figure 2, but with a cut bottle cap.
Fig. 4
a greatly enlarged representation of a cut bottle cap.

In der Fig. 1 ist eine 0,2 l-Sektflasche 1 mit einem erfindungsgemäßen Flaschenverschluß 2 dargestellt. Diese Sektflasche 1 weist am Ende ihres Halses 3 einen Wulst 4 auf, über dem zwei Gänge 5, 6 eines Gewindes 7 erkennbar sind.1 shows a 0.2 l champagne bottle 1 with a bottle stopper 2 according to the invention. This champagne bottle 1 has a bead 4 at the end of its neck 3, above which two gears 5, 6 of a thread 7 can be seen.

Der Flaschenverschluß 2 ist im wesentlichen kuppelförmig ausgebildet und weist an seinem unteren Rand eine nach innen gerichtete Abschrägung 8 auf. Die Oberfläche des Flaschenverschlusses 2 ist mit mehreren Erhöhungen 9 versehen, die ein Abrutschen der Finger beim Ver- oder Entschrauben des Verschlusses 2 verhindern.The bottle stopper 2 is essentially dome-shaped and has an inward bevel 8 at its lower edge. The surface of the bottle stopper 2 is provided with several elevations 9 which prevent the fingers from slipping off when the stopper 2 is screwed on or unscrewed.

In der Fig. 2 ist der Flaschenverschluß 2 noch einmal in etwas vergrößertem Maßstab dargestellt, und zwar aufgeschraubt auf den Flaschenhals 3. Man erkennt hierbei, daß der die Abschrägung 8 aufweisende Teil des Flaschenverschlusses 2 den Wulst 4 des Flaschenhalses 3 überdeckt.2, the bottle stopper 2 is shown again on a somewhat enlarged scale, namely screwed onto the bottle neck 3. It can be seen here that the part of the bottle stopper 2 having the bevel 8 covers the bead 4 of the bottle neck 3.

Die Fig. 3 zeigt eine der Fig. 2 weitgehend entsprechende Darstellung, wobei allerdings der Flaschenverschluß 2 geschnitten dargestellt ist. Außerdem ist die Wandstärke des Flaschenhalses 3 durch Strichelung angedeutet.FIG. 3 shows a representation largely corresponding to FIG. 2, although the bottle closure 2 is shown in section. In addition, the wall thickness of the bottle neck 3 is indicated by dashed lines.

Wie aus dieser Darstellung ersichtlich, weist der obere Rand des Flaschenhalses 3 eine nach innen gerichtete Wölbung 10 auf. Der Flaschenverschluß 2 weist auf seiner Innenseite Windungsgänge 11, 12 auf, die in die Zwischenräume zwischen den Gängen 5, 6 des Flaschenhalses 3 eingreifen. Ein stopfenartig in den Flaschenhals 3 eintretender Abdichtungsschaft 13 erstreckt sich vom Boden 14 einer Kappe 25 des Flaschenverschlusses 2 vertikal nach unten. Zwischen dem oberen Windungsgang 11 der Kappe 25 und dem Abdichtungsschaft 13 befindet sich eine Dichtungslippe 15, die dann, wenn die Flasche 1 geschlossen ist, auf der Oberkante 16 des Flaschenhalses 3 aufsitzt.As can be seen from this illustration, the upper edge of the bottle neck 3 has an inward curvature 10. The bottle stopper 2 has on its inside winding passages 11, 12 which engage in the spaces between the passages 5, 6 of the bottle neck 3. A sealing shaft 13 entering the bottle neck 3 like a plug extends vertically downward from the bottom 14 of a cap 25 of the bottle stopper 2. Between the upper turn 11 of the cap 25 and the sealing shaft 13 there is a sealing lip 15 which, when the bottle 1 is closed, rests on the upper edge 16 of the bottle neck 3.

In der Fig. 4 ist der Flaschenverschluß 2 in stark vergrößertem Maßstab und geschnitten dargestellt. Hierbei ist deutlich sichtbar, daß der Flaschenverschluß im wesentlichen aus dem Abdichtungsschaft 13 und derKappe 25 besteht. Außerdem ist ersichtlich, daß die Unterkante 17 des Abdichtungsschafts 13 zwar unterhalb des untersten Windungsgangs 12, aber oberhalb der Unterkante 18 der Kappe 25 angeordnet ist.4, the bottle stopper 2 is shown in a greatly enlarged scale and in section. It is clearly visible here that the bottle cap essentially consists of the sealing shaft 13 and the cap 25. It can also be seen that the lower edge 17 of the sealing shaft 13 is arranged below the lowermost turn 12, but above the lower edge 18 of the cap 25.

Im unteren Bereich des Abdichtungsschafts 13 ist eine Abschrägung 19 vorgesehen, die das Einführen des Abdichtungsschafts 13 in den Flaschenhals erleichtert. Die Außenfläche 20 des Abdichtungsschafts 13 ist glatt und im wesentlichen parallel zur gedachten Längsachse des Flaschenverschlusses 2. Die Innenfläche 21 des Abdichtungsschafts 13 ist ebenfalls glatt und verläuft parallel zur Außenfläche 20.In the lower region of the sealing shaft 13, a bevel 19 is provided, which facilitates the insertion of the sealing shaft 13 into the bottle neck. The outer surface 20 of the sealing shaft 13 is smooth and essentially parallel to the imaginary longitudinal axis of the bottle stopper 2. The inner surface 21 of the sealing shaft 13 is also smooth and runs parallel to the outer surface 20.

Beim Herausdrehen des Abdichtungsschafts 13 aus dem Flaschenhals bleibt der untere Bereich dieses Schafts 13 noch im Flaschenhals, während bereits der letzte Gang 12 des Innengewindes der Kappe 25 nicht mehr im Eingriff mit dem Außengewinde des Flaschenhalses 3 steht. Der CO₂-Druck in der Flasche 1 bewirkt in dieser Situation, daß der Flaschenverschluß 2 schlagartig herausgedrückt wird und ein "Plopp"-Geräusch verursacht. Der Anpreßdruck des Abdichtungsschafts 13 gegen die Innenwand des Flaschenhalses 3 reicht für ein solches "Plopp"-Geräusch aus, zumal bei den meisten Flaschen die Wölbung 10 bis zuletzt einen erhöhten Anpreßdruck bewirkt.When the sealing shaft 13 is unscrewed from the bottle neck, the lower region of this shaft 13 still remains in the bottle neck, while the last passage 12 of the internal thread of the cap 25 is no longer in engagement with the external thread of the bottle neck 3. The CO₂ pressure in the bottle 1 causes in this situation that the bottle cap 2 is suddenly pushed out and causes a "pop" noise. The contact pressure of the sealing shaft 13 against the inner wall of the bottle neck 3 is sufficient for such a "plop" noise, especially since in most bottles the curvature 10 causes an increased contact pressure to the end.

Claims (10)

1. A bottle closure for a bottle neck (3) having a screw thread (7) and comprising a bead (4) surrounding it at its upper end, whereby the external screw thread (7) of the bottle neck (3) is provided between said bead (4) and the upper edge of the neck of the bottle, comprising the following features:
a) a unitary locking body (2) made of plastic comprises a sealing shank (13) penetrating in the way of a stopper into the neck (3) of the bottle, the sealing shank (13) running centrally from the inner bottom surface (14) of a cap (25) the inner end wall of which carries a thread (11, 12) which can be engaged with the external thread (7) of the neck (3) of the bottle;
b) the sealing shank (13) projects beyond the area of the inner end wall carrying the thread (11, 12);
c) between the upper end of the sealing shank (13) and the first turn (11) of the internal thread a sealing lip (15) is provided;
d) the inner diameter of the lower edge of the cap (25) is larger than the outer diameter of the bead (4);
e) the cap (2) is provided with an area of curvature at its outer surface whereby the sealing lip (15) runs from the inner surface of the cap (2) being opposite to the area of curvature;
characterized by the following features:
f) the lower edge (18) of the cap (25) has a larger distance from the inner end surface (14) than the lower edge (17) of the sealing shank (13);
g) the sealing shank (13) has a smooth outer surface (20) over its whole outer periphery which runs concentrically with respect to the imaginary longitudinal axis of the cap (2).
2. A bottle closure according to claim 2, characterized in that the end of the sealing shank (13) which penetrates into the neck (3) of the bottle comprises a chamfer (19).
3. A bottle closure according to claim 1, characterized in that the sealing lip (15) comprises an inner periphery (23) which is parallel to the outer surface of the sealing shank (13) and an outer periphery (24) which is inclined thereto.
4. A bottle closure according to claim 1, characterized in that from the inner surface (14) to the opposite end (18) the cap (25) is about one third larger than the sealing shaft (13) so that the sealing shaft (13) is arranged completely within the bottle closure.
5. A bottle closure according to claim 1, characterized in that between the bead (4) and the upper edge (16) of the neck (3) of the bottle at most three grooves (5, 6) are arranged which constitute the external thread (7) of the neck (3) of the bottle.
6. A bottle closure according to claim 1, characterized in that the neck (3) of the bottle comprises a bead (10) inside the upper edge (16) thereof.
7. A bottle closure according to claim 1, characterized in that between the end of the sealing shank (13) and the sealing lip (15) a space is provided into which the sealing lip (15) can be pressed when the closure (2) is in place.
8. A bottle closure according to claim 1, characterized in that the surface of its cap comprises a plurality of ribs (9) extending from the bottom to the top.
9. A bottle closure according to claim 1, characterized in that the cap is symmetrical with respect to rotation and has an outer surface (25) substantially running vertically and an upper end (14) substantially running horizontally whereby the outer surface (25) is connected with the upper end (14) by means of a circular connecting piece.
10. A bottle closure according to claim 9, characterized in that the lower area (8) of the outer surface (25) comprises a chamfer.
EP88114811A 1987-09-24 1988-09-09 Bottle cap, particularly for threaded-mouth sparkling-wine bottles Expired - Lifetime EP0308753B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88114811T ATE66885T1 (en) 1987-09-24 1988-09-09 BOTTLE STOPPER, PARTICULARLY FOR CHAMPAGNE BOTTLES WITH SCREW THREAD NECK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3732112 1987-09-24
DE19873732112 DE3732112A1 (en) 1987-09-24 1987-09-24 BOTTLE STOPPER, ESPECIALLY FOR SPARKLING BOTTLES WITH SCREW THREADED MOUTH

Publications (2)

Publication Number Publication Date
EP0308753A1 EP0308753A1 (en) 1989-03-29
EP0308753B1 true EP0308753B1 (en) 1991-09-04

Family

ID=6336732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114811A Expired - Lifetime EP0308753B1 (en) 1987-09-24 1988-09-09 Bottle cap, particularly for threaded-mouth sparkling-wine bottles

Country Status (6)

Country Link
US (1) US4856668A (en)
EP (1) EP0308753B1 (en)
AT (1) ATE66885T1 (en)
CA (1) CA1291446C (en)
DE (2) DE3732112A1 (en)
ZA (1) ZA884848B (en)

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DE202012006881U1 (en) 2012-07-16 2012-08-09 Pfefferkorn & Co Gmbh bottle Cap

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ES2933755A1 (en) 2021-08-11 2023-02-13 Eunoia 2022 S L HERMETIC SEALING CAP FOR CONTAINERS (Machine-translation by Google Translate, not legally binding)
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DE202012006881U1 (en) 2012-07-16 2012-08-09 Pfefferkorn & Co Gmbh bottle Cap

Also Published As

Publication number Publication date
DE3864640D1 (en) 1991-10-10
ZA884848B (en) 1989-03-29
DE3732112A1 (en) 1989-04-13
EP0308753A1 (en) 1989-03-29
ATE66885T1 (en) 1991-09-15
US4856668A (en) 1989-08-15
CA1291446C (en) 1991-10-29

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