EP0858416B1 - Closure for a bottle or the like - Google Patents

Closure for a bottle or the like Download PDF

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Publication number
EP0858416B1
EP0858416B1 EP96937235A EP96937235A EP0858416B1 EP 0858416 B1 EP0858416 B1 EP 0858416B1 EP 96937235 A EP96937235 A EP 96937235A EP 96937235 A EP96937235 A EP 96937235A EP 0858416 B1 EP0858416 B1 EP 0858416B1
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EP
European Patent Office
Prior art keywords
neck
bottle
projection
locking device
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
EP96937235A
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German (de)
French (fr)
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EP0858416A1 (en
EP0858416B2 (en
Inventor
Michael Hertrampf
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Safety Cap System AG
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Safety Cap System AG
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Publication date
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Priority claimed from DE19613830A external-priority patent/DE19613830C2/en
Application filed by Safety Cap System AG filed Critical Safety Cap System AG
Publication of EP0858416A1 publication Critical patent/EP0858416A1/en
Publication of EP0858416B1 publication Critical patent/EP0858416B1/en
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Publication of EP0858416B2 publication Critical patent/EP0858416B2/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
    • 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

Definitions

  • the invention relates to a closure in the Preamble of claim 1 mentioned type for a Bottle or the like.
  • GB 2 013 635 A is a closure of the concerned kind known in which the radial projection the sealing part on the inner wall of the bottle neck directly in the area of its inner rim is present.
  • the cylindrical sealing part is very short, and the protrusion on its outer surface is close the bottom of the cap-shaped closure part.
  • the floor can be flexibly arched out at overpressure.
  • bulging the sealing projection essentially follows this axial bulge motion until at a certain overpressure and thus a certain Bulge from the inner mouth of the bottle neck comes free and forms a gap, can escape through the excess pressure. In this way a pressure relief valve is formed by the closure, with which the bottle bursts and the associated Dangers are avoided.
  • a disadvantage of this known closure is in that in practice that acting as a valve seat front inner edge of the mouth of the bottle neck has a high manufacturing inaccuracy, so that no defined system of the sealing projection especially in the critical area, in which the pressure relief valve formed by the closure opens and closes again. On top of that in such bottles, especially glass bottles, the can be reused several times, the inner muzzle of the bottle neck has damage that cause a leak.
  • GB 958 417 has a closure similar to that Known type, also known as a screw cap is formed, the projections on the inside at its bottom has that serve as stops and at Screw the screw cap onto a bottle neck come to rest on the outside of its front edge. Thereby is the stretch of the outer thread Part of the cap not used for the bottom to give axial mobility. Since the Elasticity of this axial mobility is decisive for the opening pressure, for the flexibility but only the area between the cylindrical Sealing part and the outer edge of the end face of the bottle neck is available, the floor must be very be thin to provide sufficient resilience to reach. This is disadvantageous, especially manufacturing tolerances in particular impact.
  • the invention has for its object a Closure mentioned in the preamble of claim 1 Way of creating inaccuracies or damage to the front inside edge of the Do not adversely affect the mouth of a bottle neck and their sealing effect even with frequent Pressure changes are not affected.
  • the basic idea of the teaching according to the invention is in opening the between the shutter and a neck of a bottle formed relief valve not by an axial movement of the sealing To cause projection on the sealing part, in which the Location and nature of the front inner edge of the Mouth of a bottle neck is vital but by a radial movement of the sealing projection inside.
  • This radial movement is achieved by directly in the ground radially outside of the cylindrical sealing part cross-section constriction acting as a swivel joint is. This leads to a bulge the bottom of the closure part is the edge region seen in cross section around the so formed Swivel rotates while the outside area remains essentially unaffected.
  • this Closure part radially outside of the as a hinge acting cross-sectional narrowing an axial stop to rest on an opposite counterstop on the neck of the bottle.
  • the stop in the radial area of the End face of a bottle neck forming the counter stop surface arranged.
  • the stop can, for example simply by the extended thought Be formed against the face of a floor Bottleneck strikes and so a firm position of the Closure bottom causes in the outer edge area, whereby Movements of the swivel in the axial direction and thus also axial movements of the projection of the Sealing part formed sealing surface excluded and thus also a friction of the sealing surface on the cylindrical Inner surface of the bottle neck.
  • this sealing surface with changes in curvature caused by pressure fluctuations the bottom of the closure part do not occur.
  • the axial stop on the closure part be designed so that overpressure the stop can escape through. Is the stop ring-shaped, this can escape through radial channels or passages can be ensured.
  • the attack can also be discrete Single stops act on the scope of the closure part are distributed and so between culverts are formed. The attack can also do so be trained that he on a projection on the outside Bottle neck strikes, which then the counter-stop forms.
  • the arrangement is sufficient just a rib.
  • the rib extends in the area of her Transition to the sealing part axially into one Area away from the sealing tab. Thereby remains axially between the rib and the protrusion an unstiffened and therefore elastic area.
  • the rib extends in the area of her Transition into the ground up to a radial area away from the axis or the center of the closure part. This will affect the Arching of the floor counteracted with increasing pressure and thus the effect as a pressure relief valve improved.
  • the cross-sectional narrowing radially so arranged that the hinge formed by it on the extended inner surface of the Neck of a bottle. Because of this location of the narrowing and thus the swivel is ensured that the against the inner wall of a bottle neck radial sealing projection on bulges the bottom of the cap only ever transversely to the inner The surface of the bottle neck is relieved of pressure or is lifted off. This will rub the sealing projection in the axial direction along the counteracted inner surface of the bottle neck and therefore also wear and leakage.
  • the drawing shows in section and partially cut away a screw cap Locking part 1, screwed onto one only with his front part shown neck 2 of a bottle.
  • the closure part 1 has a bottom 3, of which from itself axially into the interior of the neck 2 a cylindrical Sealing part 4 extends on its outside has a projection 5 which on a cylindrical Inner surface 6 of the neck 2 abuts.
  • the outer The diameter of the projection 5 is slight dimensioned larger than the diameter of the inner surface 6, such that the projection 5 in the illustrated screwed state with a predetermined force abuts the inner surface 6.
  • the projection 5 comes not with a front inner edge 7 of the mouth of the neck 2 in contact.
  • the bottom 3 points directly radially outside the Sealing part 4 has a cross-sectional constriction 8 which forms a swivel around which the bell crank is rotatable is that by the sealing part 4 and which of the Cross-sectional constriction 8 extending radially inwards Part of the bottom 3 is formed.
  • An outer cylindrical holding part 12 of the closure part 1 has an internal thread on its inside 13, which is in an external thread 14 on the neck 2 the bottle intervenes. Also located inside on the holding part 12, an axial rib 9 with a stop 10, the one Counter abutment 11 rests on the end face of the Neck 2 of the bottle is formed. Stop 10 and Counter stop 11 thus determine an exact and in particular fixed position due to the narrowing of the cross-section 8 swivel formed.
  • a rib 15 which firmly connected to the bottom 3 and the sealing part 4 is and consists of one piece with these.
  • the rib 15 is triangular and extends in the radial direction up to an area from the sealing projection 5, but ends in one radial area away from an axis 16.
  • the cap-shaped closure part 1 screwed onto the neck 2 until the Stop 10 comes to rest against the counter stop 11.
  • the projection 5 slides on the sealing part 4 the inner surface 6 of the neck 2 and so seals that Inside the bottle.
  • an overpressure for example in that it is in the case of the filling product developing a gas pressure acts, the bottom 3 bulges axially outwards, causing its edges to rotate around a swivel perform cross-sectional narrowing 8. This leads to a pivoting through the sealing part 4 formed arm radially inwards and thus to a decrease in the force with which the lead 5 rests on the inner surface 6 of the neck 2.

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

Abstract

PCT No. PCT/EP96/04646 Sec. 371 Date Apr. 17, 1998 Sec. 102(e) Date Apr. 17, 1998 PCT Filed Oct. 25, 1996 PCT Pub. No. WO97/16356 PCT Pub. Date May 9, 1997A closure for a bottle, comprising a cap-shaped closure component; a projection directed inwardly from an edge of the cap-shaped closure component to grip behind an outwardly directed projection at a neck of a bottle; a substantially cylindrical sealing element extending axially from a bottom of the closure component, the sealing element being disposed within the closure component; and a radial projection formed outside of the sealing element and disposed away from the bottom and having a diameter larger than the inside diameter of the neck of the bottle to be sealed by the closure means in such a way that a sealing surface formed by the radial projection tightly rests against an inside surface of the neck in a closed mode. The bottom comprises a cross-sectional slimming disposed radially beyond the cylindrical sealing element, the slimming having a thickness less than the thickness of an adjacent portion of the bottom such that the slimming functions as a hinge. The bottom and the sealing element form an elbow lever pivotable about the hinge. At least one rib is disposed in a space formed between the bottom and the sealing element to brace the sealing element against movement relative to the bottom, such that upon bulging of the bottom the radial projection is substantially radially detached from the inside surface of the neck by a lever action of the elbow lever pivotable about the hinge.

Description

Die Erfindung betrifft einen Verschluß der im Oberbegriff des Anspruchs 1 genannten Art für eine Flasche oder dergleichen.The invention relates to a closure in the Preamble of claim 1 mentioned type for a Bottle or the like.

Durch GB 2 013 635 A ist ein Verschluß der betreffenden Art bekannt, bei dem der radiale Vorsprung an dem Dichtteil an der Innenwandung des Flaschenhalses unmittelbar im Bereich seiner inneren Mündungskante anliegt. Das zylindrische Dichtteil ist sehr kurz, und der Vorsprung an seiner Außenfläche liegt nahe dem Boden des kappenförmigen Verschlußteils. Der Boden ist nachgiebig bei Überdruck auswölbbar. Bei Auswölbung folgt der dichtende Vorsprung dieser im wesentlichen axialen Auswölbungsbewegung, bis er bei einem bestimmten Überdruck und somit einer bestimmten Auswölbung von der inneren Mündungskante des Flaschenhalses freikommt und so einen Spalt bildet, durch den Überdruckentweichen kann. Auf diese Weise ist durch den Verschluß ein Überdruckventil gebildet, mit dem ein Bersten der Flasche und die damit verbundenen Gefahren vermieden werden.GB 2 013 635 A is a closure of the concerned Kind known in which the radial projection the sealing part on the inner wall of the bottle neck directly in the area of its inner rim is present. The cylindrical sealing part is very short, and the protrusion on its outer surface is close the bottom of the cap-shaped closure part. The floor can be flexibly arched out at overpressure. When bulging the sealing projection essentially follows this axial bulge motion until at a certain overpressure and thus a certain Bulge from the inner mouth of the bottle neck comes free and forms a gap, can escape through the excess pressure. In this way a pressure relief valve is formed by the closure, with which the bottle bursts and the associated Dangers are avoided.

Ein Nachteil dieses bekannten Verschlusses besteht darin, daß in der Praxis die als Ventilsitz wirkende vordere Innenkante der Mündung des Flaschenhalses eine hohe Fertigungsungenauigkeit hat, so daß dadurch keine definierte Anlage des dichtenden Vorsprunges gerade in dem kritischen Bereich gewährleistet ist, in dem das durch den Verschluß gebildete Überdruckventil öffnet und wieder schließt. Hinzu kommt, daß bei solchen Flaschen, insbesondere Glasflaschen, die mehrfach wiederverwendet werden, die innere Mündungskante des Flaschenhalses Beschädigungen aufweist, die zu einer Undichtigkeit führen.A disadvantage of this known closure is in that in practice that acting as a valve seat front inner edge of the mouth of the bottle neck has a high manufacturing inaccuracy, so that no defined system of the sealing projection especially in the critical area, in which the pressure relief valve formed by the closure opens and closes again. On top of that in such bottles, especially glass bottles, the can be reused several times, the inner muzzle of the bottle neck has damage that cause a leak.

Ein weiterer Nachteil dieses bekannten Verschlusses besteht darin, daß der dichtende Vorsprung bei Druckänderungen, die in der Praxis durch Erwärmung und Wiederabkühlung des Inhalts der mit dem Verschluß verschlossenen Flasche vorkommen, ständig axiale Gleitbewegungen auf der als Ventilsitz wirkenden vorderen Innenfläche der Flaschenmündung ausführt, was zu einem Abrieb oder zu Beschädigungen der Dichtfläche an dem Vorsprung führen kann, die eine Undichtigkeit nach sich ziehen.Another disadvantage of this known closure is that the sealing projection at Pressure changes in practice due to warming and re-cooling the contents of the with the closure sealed bottle occur, constantly axial Sliding movements on the front valve seat Inner surface of the bottle mouth does what to abrasion or damage to the sealing surface on the ledge, which can cause a leak entail.

Schließlich besteht ein Nachteil dieses bekannten Verschlusses darin, daß die Forderung nach einer axialen Beweglichkeit eine axiale Nachgiebigkeit der Kappe außerhalb des zylindrischen Dichtteils erfordert. Diese Forderung wird bei diesem bekannten, als Schraubkappe ausgebildeten Verschluß durch eine Scherung des Bodens außerhalb des zylindrischen Dichtteils und durch eine axiale Dehnung des äußeren zylindrischen Teils erreicht. In die Dehnung geht jedoch die Vorspannung ein, die von dem Aufschraubdrehmoment abhängig ist, jedenfalls beim Gebrauch durch den Verbraucher wiederum davon abhängig ist, mit welchem Drehmoment der Verbraucher die Schraubkappe aufschraubt. Die Folge davon ist, daß der Druck, bei dem aus Sicherheitsgründen eine Druckentlastung stattfinden soll, nicht fest bestimmt, sondern vom Zufall abhängig ist, so daß die gewünschte Sicherheit nicht erreicht wird, um ein Bersten der Flasche bei zu hohem Druck zu vermeiden.Finally, there is a disadvantage of this known one Closure in that the demand for a axial mobility an axial compliance of the Cap outside of the cylindrical seal required. This requirement is known in this, as Screw cap formed by shear of the bottom outside of the cylindrical sealing part and by axial expansion of the outer cylindrical part reached. Stretches however, the preload is determined by the unscrewing torque is dependent, at least in use in turn depends on the consumer with what torque the screw cap consumes screwed on. The consequence of this is that the Pressure at which a pressure relief for safety reasons should take place, not determined, but depends on chance, so that the desired Security is not achieved to burst the Avoid bottle when pressure is too high.

Durch GB 958 417 ist ein Verschluß ähnlich der betreffenden Art bekannt, der ebenfalls als Schraubkappe ausgebildet ist, die innen an ihrem Boden Vorsprünge aufweist, die als Anschläge dienen und beim Aufschrauben der Schraubkappe auf einen Flaschenhals außen an dessen Stirnkante zur Anlage kommen. Dadurch wird die Dehnung des äußeren, das Gewinde aufweisenden Teils der Kappe nicht dafür ausgenutzt, dem Boden eine axiale Beweglichkeit zu verleihen. Da die Elastizität dieser axialen Beweglichkeit maßgebend für den öffnungsdruck ist, für die Nachgiebigkeit aber nur der Bereich zwischen dem zylindrischen Dichtteil und der Außenkante der Stirnfläche des Flaschenhalses zur Verfügung steht, muß der Boden sehr dünn sein, um eine ausreichende elastische Nachgiebigkeit zu erreichen. Dies ist nachteilig, zumal sich dabei Herstellungstoleranzen im besonderen Maße auswirken.GB 958 417 has a closure similar to that Known type, also known as a screw cap is formed, the projections on the inside at its bottom has that serve as stops and at Screw the screw cap onto a bottle neck come to rest on the outside of its front edge. Thereby is the stretch of the outer thread Part of the cap not used for the bottom to give axial mobility. Since the Elasticity of this axial mobility is decisive for the opening pressure, for the flexibility but only the area between the cylindrical Sealing part and the outer edge of the end face of the bottle neck is available, the floor must be very be thin to provide sufficient resilience to reach. This is disadvantageous, especially manufacturing tolerances in particular impact.

Der Erfindung liegt die Aufgabe zugrunde, einen Verschluß der im Oberbegriff des Anspruchs 1 genannten Art zu schaffen, beim dem sich Ungenauigkeiten oder Beschädigungen an der vorderen Innenkante der Mündung eines Flaschenhalses nicht nachteilig auswirken und deren Dichtwirkung auch bei häufigen Druckänderungen nicht beeinträchtigt wird.The invention has for its object a Closure mentioned in the preamble of claim 1 Way of creating inaccuracies or damage to the front inside edge of the Do not adversely affect the mouth of a bottle neck and their sealing effect even with frequent Pressure changes are not affected.

Die der Erfindung zugrundeliegende Aufgabe wird durch die im Kennzeichen des Anspruchs 1 angegebene Lehre gelöst.The object underlying the invention will by the specified in the characterizing part of claim 1 Doctrine solved.

Der Grundgedanke der erfindungsgemäßen Lehre besteht darin, das öffnen des zwischen dem Verschluß und einem Hals einer Flasche gebildeten Überdruckventils nicht durch eine axiale Bewegung des dichtenden Vorsprungs an dem Dichtteil zu bewirken, bei der die Lage und Beschaffenheit der vorderen Innenkante der Mündung eines Flaschenhalses von entscheidender Bedeutung ist, sondern durch eine radiale Bewegung des dichtenden Vorsprungs nach innen. Diese radiale Bewegung wird dadurch erreicht, daß im Boden unmittelbar radial außerhalb des zylindrischen Dichtteils eine als Drehgelenk wirkende Querschnittsverengung vorgesehen ist. Diese führt dazu, daß bei einer Auswölbung des Bodens des Verschlußteils sich dessen Randbereich im Querschnitt gesehen um das so gebildete Drehgelenk dreht, während der außerhalb liegende Bereich im wesentlichen unbeeinflußt bleibt. Da das zylindrische Dichtteil unmittelbar innen von dem Drehgelenk fest mit dem Boden verbunden und so zwischen Boden und zylindrischem Dichtteil ein Winkelhebel gebildet ist, der um das Drehgelenk drehbar ist, bedeutet dies, daß bei einer Auswölbung des Bodens das Dichtteil nach innen schwenkt und so der an seiner Außenfläche befindliche dichtende Vorsprung druckentlastet wird und bei ausreichendem Druck von der zylindrischen Innenfläche des Flaschenhalses abhebt.The basic idea of the teaching according to the invention is in opening the between the shutter and a neck of a bottle formed relief valve not by an axial movement of the sealing To cause projection on the sealing part, in which the Location and nature of the front inner edge of the Mouth of a bottle neck is vital but by a radial movement of the sealing projection inside. This radial movement is achieved by directly in the ground radially outside of the cylindrical sealing part cross-section constriction acting as a swivel joint is. This leads to a bulge the bottom of the closure part is the edge region seen in cross section around the so formed Swivel rotates while the outside area remains essentially unaffected. Since that cylindrical sealing part immediately inside of the Swivel joint firmly connected to the floor and so between Bottom and cylindrical sealing part an angle lever is formed, which is rotatable about the hinge, this means that when the floor bulges the sealing part swings inwards and so on his Sealing protrusion located on the outer surface is relieved of pressure and with sufficient pressure of the cylindrical inner surface of the bottle neck.

Um diese radiale Druckentlastung oder dieses radiale Abheben unter allen Umständen sicherzustellen, ist gemäß einem besonderen Merkmal der Erfindung der radiale dichtende Vorsprung axial so angeordnet, daß er bei allen vorkommenden Auswölbungen des Bodens durch Überdruck im Bereich der im wesentlichen zylindrischen Innenfläche des Halses der Flasche liegt.This radial pressure relief or this radial Take off under all circumstances ensure is according to a particular feature of the invention radial sealing projection axially arranged so that he with all occurring bulges of the floor by overpressure in the area of the substantially cylindrical Inner surface of the neck of the bottle lies.

Diese Angaben sind im wesentlichen auf eine Querschnittsbetrachtung bezogen, bei der das zylindrische Dichtteil tatsächlich einen Hebel bildet. In Wirklichkeit handelt es sich jedoch tatsächlich um einen Zylinder, so daß die im Querschnitt betrachtete Hebelwirkung bezüglich des Umfangs in Wirklichkeit eine Querschnittsverengung des zylindrischen Dichtteils bedeutet. Das ändert aber nichts an der Wirkung in Form einer Druckentlastung oder eines Abhebens des Vorsprungs. Natürlich gehen in die mechanischen Verhältnisse auch die Länge und Steifigkeit des zylindrischen Dichtteils ein, jedoch sind das Werte, deren Bestimmung im Rahmen einfachen fachmännischen Könnens liegt. Das gilt auch für die Ausbildung der ein Drehgelenk darstellenden Querschnittsverengung im Boden des kappenförmigen Verschlußteils. Die Querschnittsverengung muß in Axialrichtung ausreichend groß sein, um die gewünschte leichte Drehbarkeit zu erzielen. Andererseits darf sie in radialer Richtung nicht so groß sein, daß eine unerwünschte Parallelbewegung in Axialrichtung entstehen kann.This information is essentially based on a cross-sectional view related, in which the cylindrical Sealing part actually forms a lever. In reality however, it is actually one Cylinder, so that the leverage considered in cross section in terms of scope actually one Cross-sectional constriction of the cylindrical sealing part means. But that doesn't change the effect in Form of pressure relief or lifting the Lead. Of course, go into the mechanical relationships also the length and rigidity of the cylindrical Sealing part, but these are values whose Determination within the framework of simple professional skills lies. This also applies to the training of a swivel representative cross-sectional narrowing in the soil of the cap-shaped closure part. The cross-sectional narrowing must be sufficient in the axial direction be large to achieve the desired ease of rotation achieve. On the other hand, it may be in the radial direction not be so big that an undesirable parallel movement can arise in the axial direction.

Gemäß einer Weiterbildung der Erfindung weist das Verschlußteil radial außerhalb der als Drehgelenk wirkenden Querschnittsverengung einen axialen Anschlag zur Anlage an einem gegenüberliegenden Gegenanschlag am Hals der Flasche auf. Zweckmäßigerweise ist dabei der Anschlag im radialen Bereich der die Gegenanschlagfläche bildenden Stirnfläche eines Flaschenhalses angeordnet. Der Anschlag kann beispielsweise einfach durch den verlängert gedachten Boden gebildet sein, der gegen die Stirnfläche eines Flaschenhalses anschlägt und so eine feste Lage des Verschlußbodens im äußeren Randbereich bewirkt, wodurch Bewegungen des Drehgelenks in Axialrichtung und damit auch Axialbewegungen der am Vorsprung des Dichtteils gebildeten Dichtfläche ausgeschlossen und damit auch eine Reibung der Dichtfläche an der zylindrischen Innenfläche des Flaschenhalses. Damit können Abrieb und Beschädigungen dieser Dichtfläche bei durch Druckschwankungen bewirkten Wölbungsänderungen des Bodens des Verschlußteils nicht auftreten.According to a development of the invention, this Closure part radially outside of the as a hinge acting cross-sectional narrowing an axial stop to rest on an opposite counterstop on the neck of the bottle. Conveniently is the stop in the radial area of the End face of a bottle neck forming the counter stop surface arranged. The stop can, for example simply by the extended thought Be formed against the face of a floor Bottleneck strikes and so a firm position of the Closure bottom causes in the outer edge area, whereby Movements of the swivel in the axial direction and thus also axial movements of the projection of the Sealing part formed sealing surface excluded and thus also a friction of the sealing surface on the cylindrical Inner surface of the bottle neck. In order to can wear and damage this sealing surface with changes in curvature caused by pressure fluctuations the bottom of the closure part do not occur.

Selbstverständlich muß der axiale Anschlag am Verschlußteil so ausgebildet sein, daß Überdruck durch den Anschlag hindurch entweichen kann. Ist der Anschlag ringförmig, so kann dieses Entweichen durch radiale Kanäle oder Durchlässe sichergestellt werden. Bei dem Anschlag kann es sich jedoch auch um diskrete Einzelanschläge handeln, die über den Umfang des Verschlußteils verteilt angeordnet sind und so zwischen sich Durchlässe bilden. Auch kann der Anschlag so ausgebildet sein, daß er an einem Vorsprung außen am Flaschenhals anschlägt, der dann den Gegenanschlag bildet.Of course, the axial stop on the closure part be designed so that overpressure the stop can escape through. Is the stop ring-shaped, this can escape through radial channels or passages can be ensured. However, the attack can also be discrete Single stops act on the scope of the closure part are distributed and so between culverts are formed. The attack can also do so be trained that he on a projection on the outside Bottle neck strikes, which then the counter-stop forms.

Gemäß einer Weiterbildung der Erfindung ist zwischen dem Boden der Verschlußkappe und dem zylindrischen Dichtteil eine Rippe angeordnet, die den vom Boden und Verschlußteil gebildeten Winkelhebel aussteift. Dadurch wird die Bewegung des Bodens bei einer Auswölbung infolge zunehmenden Druckes in einer verschlossenen Flasche wirksamer auf das zylindrische Dichtteil übertragen und so die Druckentlastung oder ein Anheben des Vorsprunges verbessert, insbesondere gegen den radial nach außen auf das Dichtteil wirkenden Innendruck.According to a development of the invention, between the bottom of the cap and the cylindrical Sealing part arranged a rib that the from Bottom and locking part stiffened angle lever. This will move the floor at a Bulge due to increasing pressure in one sealed bottle more effective on the cylindrical Transfer sealing part and so the pressure relief or raising the projection improves, in particular against the one acting radially outwards on the sealing part Internal pressure.

Um die vorteilhafte Wirkung der Rippe zu erreichen, genügt in einfachsten Fällen bereits die Anordnung nur einer Rippe. Natürlich ist es auch möglich, mehrere Rippen vorteilhafterweise mit gleichem Abstand über den Umfang anzuordnen.To achieve the beneficial effect of the rib, In the simplest cases, the arrangement is sufficient just a rib. Of course it is also possible several ribs advantageously with the same To arrange distance over the circumference.

Gemäß einer zweckmäßigen Weiterbildung dieser Ausführungsform erstreckt sich die Rippe im Bereich ihres Überganges zu dem Dichtteil axial bis in einen Bereich entfernt von dem dichtenden Vorsprung. Dadurch verbleibt axial zwischen der Rippe und dem Vorsprung ein unausgesteifter und damit elastischer Bereich.According to an expedient development of this embodiment the rib extends in the area of her Transition to the sealing part axially into one Area away from the sealing tab. Thereby remains axially between the rib and the protrusion an unstiffened and therefore elastic area.

Gemäß einer anderen Weiterbildung dieser Ausführungsform erstreckt sich die Rippe im Bereich ihres Überganges in den Boden bis in einen Bereich radial entfernt von der Achse bzw. dem Zentrum des Verschlußteils. Dadurch wird einer Beeinträchtigung der Auswölbung des Bodens bei zunehmendem Druck entgegengewirkt und somit die Wirkung als Überdruckventil verbessert.According to another development of this embodiment the rib extends in the area of her Transition into the ground up to a radial area away from the axis or the center of the closure part. This will affect the Arching of the floor counteracted with increasing pressure and thus the effect as a pressure relief valve improved.

Schließlich ist gemäß einer zweckmäßigen Weiterbildung der Erfindung die Querschnittsverengung radial so angeordnet, daß das durch sie gebildete Drehgelenk auf der verlängert gedachten Innenfläche des Halses einer Flasche liegt. Durch diese Lage der Verengung und damit des Drehgelenks ist sichergestellt, daß der an der Innenwandung eines Flaschenhalses anliegende radiale dichtende Vorsprung bei Auswölbungen des Bodens der Verschlußkappe immer nur quer zur inneren Mantelfläche des Flaschenhalses druckentlastet bzw. abgehoben wird. Damit wird Reibbewegungen des dichtenden Vorsprunges in Axialrichtung entlang der inneren Mantelfläche des Flaschenhalses entgegengewirkt und damit auch einem Verschleiß und Undichtwerden.Finally, according to a convenient training of the invention, the cross-sectional narrowing radially so arranged that the hinge formed by it on the extended inner surface of the Neck of a bottle. Because of this location of the narrowing and thus the swivel is ensured that the against the inner wall of a bottle neck radial sealing projection on bulges the bottom of the cap only ever transversely to the inner The surface of the bottle neck is relieved of pressure or is lifted off. This will rub the sealing projection in the axial direction along the counteracted inner surface of the bottle neck and therefore also wear and leakage.

Anhand der Zeichnung soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden.Based on the drawing, the invention is intended to Embodiment will be explained in more detail.

Die Zeichnung zeigt im Schnitt und teilweise weggeschnitten ein als Schraubkappe ausgebildetes Verschlußteil 1, aufgeschraubt auf einen nur mit seinem vorderen Teil dargestellten Hals 2 einer Flasche. Das Verschlußteil 1 weist einen Boden 3 auf, von dem aus sich axial in das Innere des Halses 2 ein zylindrisches Dichtteil 4 erstreckt, das auf seiner Außenseite einen Vorsprung 5 aufweist, der an einer zylindrischen Innenfläche 6 des Halses 2 anliegt. Der äußere Durchmesser des Vorsprunges 5 ist geringfügig größer als der Durchmesser der Innenfläche 6 bemessen, derart, daß der Vorsprung 5 im dargestellten aufgeschraubten Zustand mit einer vorbestimmten Kraft an der Innenfläche 6 anliegt. Der Vorsprung 5 kommt also nicht mit einer vorderen Innenkante 7 der Mündung des Halses 2 in Kontakt.The drawing shows in section and partially cut away a screw cap Locking part 1, screwed onto one only with his front part shown neck 2 of a bottle. The closure part 1 has a bottom 3, of which from itself axially into the interior of the neck 2 a cylindrical Sealing part 4 extends on its outside has a projection 5 which on a cylindrical Inner surface 6 of the neck 2 abuts. The outer The diameter of the projection 5 is slight dimensioned larger than the diameter of the inner surface 6, such that the projection 5 in the illustrated screwed state with a predetermined force abuts the inner surface 6. The projection 5 comes not with a front inner edge 7 of the mouth of the neck 2 in contact.

Der Boden 3 weist unmittelbar radial außerhalb des Dichtteils 4 eine Querschnittsverengung 8 auf, die ein Drehgelenk bildet, um den der Winkelhebel drehbar ist, der durch das Dichtteil 4 und den sich von der Querschnittsverengung 8 radial nach innen erstreckenden Teil des Bodens 3 gebildet ist.The bottom 3 points directly radially outside the Sealing part 4 has a cross-sectional constriction 8 which forms a swivel around which the bell crank is rotatable is that by the sealing part 4 and which of the Cross-sectional constriction 8 extending radially inwards Part of the bottom 3 is formed.

Ein äußeres zylindrisches Halteteil 12 des Verschlußteils 1 weist auf seiner Innenseite ein Innengewinde 13 auf, das in ein Außengewinde 14 am Hals 2 der Flasche eingreift. Außerdem befindet sich innen an dem Halteteil 12 eine Axialrippe 9 mit einem Anschlag 10, der an einem Gegenanschlag 11 anliegt, der an der Stirnfläche des Halses 2 der Flasche gebildet ist. Anschlag 10 und Gegenanschlag 11 bestimmen also eine genaue und insbesondere feste Lage des durch die Querschnittsverengung 8 gebildeten Drehgelenks.An outer cylindrical holding part 12 of the closure part 1 has an internal thread on its inside 13, which is in an external thread 14 on the neck 2 the bottle intervenes. Also located inside on the holding part 12, an axial rib 9 with a stop 10, the one Counter abutment 11 rests on the end face of the Neck 2 of the bottle is formed. Stop 10 and Counter stop 11 thus determine an exact and in particular fixed position due to the narrowing of the cross-section 8 swivel formed.

In dem Bereich des Winkels zwischen dem Boden 3 und dem Dichtteil 4 ist eine Rippe 15 angeordnet, die fest mit dem Boden 3 und dem Dichtteil 4 verbunden ist und mit diesen aus einem Stück besteht. Die Rippe 15 ist dreieckförmig ausgebildet und erstreckt sich in radialer Richtung bis in einen Bereich entfernt von dem dichtenden Vorsprung 5, endet jedoch in einem rad-ialen Bereich entfernt von einer Achse 16. Durch diese geringe radiale Ausdehnung nach innen wird die Aussteifung_des Bodens 3 in Bezug auf Wölbungen gering gehalten.In the area of the angle between the floor 3 and the sealing part 4 is arranged a rib 15 which firmly connected to the bottom 3 and the sealing part 4 is and consists of one piece with these. The rib 15 is triangular and extends in the radial direction up to an area from the sealing projection 5, but ends in one radial area away from an axis 16. By this small radial expansion inwards becomes the Stiffening of the bottom 3 in terms of curvatures is low held.

Bei Gebrauch wird nach einer Befüllung der zu dem Hals 2 gehörenden Flasche das kappenförmige Verschlußteil 1 auf den Hals 2 aufgeschraubt, bis der Anschlag 10 an dem Gegenanschlag 11 zur Anlage kommt. Dabei gleitet der Vorsprung 5 an dem Dichtteil 4 auf die Innenfläche 6 des Halses 2 auf und dichtet so das Innere der Flasche ab. Entwickelt sich in der Flasche ein Überdruck, beispielsweise dadurch, daß es sich bei dem Füllgut um ein Gasdruck entwickelndes Getränk handelt, so wölbt sich der Boden 3 axial nach außen, wodurch seine Ränder eine Drehung um die ein Drehgelenk darstellende Querschnittsverengung 8 ausführen. Dies führt zu einem Verschwenken des durch das Dichtteil 4 gebildeten Armes radial nach innen und damit zu einer Verringerung der Kraft, mit der der Vorsprung 5 an der Innenfläche 6 des Halses 2 anliegt. Bei einem vorbestimmten Überdruck und damit zu einer vorbestimmten Auswölbung des Bodens 3 hebt der Vorsprung 5 von der Innenfläche 6 ab, so daß Überdruck entweichen kann. Als Folge davon verringert sich wieder die Wölbung des Bodens 3, so daß der Vorsprung 5 wieder dicht an der Innenfläche 6 zur Anlage kommt. Durch die Rippe 15 wird die Übertragung der Auslenkung des Bodens 3 aufgrund von Auswölbungen bei Überdruck auf das Dichtteil 4 verbessert, der von Boden 3 und Dichtteil 4 gebildete Winkelhebel wird ausgesteift. Dadurch reagiert das insgesamt gebildete Überdruckventil empfindlicher und exakter auf Überdrücke. Insbesondere läßt sich dadurch auch bei unterschiedlichen Fertigungstoleranzen ein bestimmter Abblasdruck genauer einhalten.In use, after filling, the becomes Neck 2 belonging bottle the cap-shaped closure part 1 screwed onto the neck 2 until the Stop 10 comes to rest against the counter stop 11. The projection 5 slides on the sealing part 4 the inner surface 6 of the neck 2 and so seals that Inside the bottle. Develops in the bottle an overpressure, for example in that it is in the case of the filling product developing a gas pressure acts, the bottom 3 bulges axially outwards, causing its edges to rotate around a swivel perform cross-sectional narrowing 8. This leads to a pivoting through the sealing part 4 formed arm radially inwards and thus to a decrease in the force with which the lead 5 rests on the inner surface 6 of the neck 2. At a predetermined overpressure and thus one predetermined protrusion of the bottom 3 lifts the projection 5 from the inner surface 6, so that overpressure can escape. As a result, it decreases again the curvature of the bottom 3 so that the projection 5th comes close to the inner surface 6 again. Through the rib 15, the transmission of the deflection of the bottom 3 due to bulges at excess pressure improved on the sealing part 4, the bottom 3 and sealing part 4 formed angle lever is stiffened. As a result, the total formed reacts Pressure relief valve more sensitive and more precise to overpressures. In particular, it can also be used for different Manufacturing tolerances a certain Comply with the blowdown pressure.

Da durch Anschlag 10 und Gegenanschlag 11 die Lage des durch die Querschnittsverengung 8 gebildeten Gelenks axial praktisch unveränderbar ist, sind Axialbewegungen des Dichtteils 4 ausgeschlossen, so daß auch keine Relativbewegungen zwischen dem an dem Dichtteil 4 befindlichen Vorsprung 5 und der Innenfläche 6 des Halses 2 auftreten können. Die Dichtwirkung wird daher nicht beeinträchtigt, auch wenn durch häufige Druckwechsel Änderungen der Auswölbung des Bodens 3 erfolgen. Diese führen nur zu Änderungen des Auflagedruckes des Vorsprungs 5, die sich jedoch nicht negativ auf die Dichtung auswirken.Because by stop 10 and counter-stop 11, the location of the joint formed by the cross-sectional constriction 8 axially practically unchangeable are axial movements the sealing part 4 excluded, so that also no relative movements between that on the Sealing part 4 located projection 5 and the inner surface 6 of the neck 2 can occur. The sealing effect is therefore not affected, even if changes in the bulge due to frequent pressure changes of the bottom 3. These only lead to changes the contact pressure of the projection 5, which however do not adversely affect the seal.

Claims (8)

  1. A locking device for a bottle or the like,
    having a cap-like locking part (1),
    having a projection (13) directed inwards from the edge of the cap-like part for backwardly engaging with an outwardly directed projection (14) on the neck of a bottle or the like,
    having a radial projection (5) which is constructed spaced from the base of the locking part on the outer side of the sealing part, and having a diameter which is greater than the inner diameter of the neck (2) of a bottle to be locked with the locking device, such that the sealing surface or sealing edge formed from the projection, abuts tightly with inner surface (6) of the neck, characterised in that
    the base (3) has a narrowing of the cross-section (8) acting as a swivel joint, directly radially outside cylindrical sealing part (4) and
    that radial projection (5) is axially so-arranged that it is located during all arching of the base resulting from excess pressure in the area of the essentially cylindrical inner surface (6) of bottle neck (2), and during arching of the base (3) as a result of lever action of angle lever formed from the base (3) and sealing part (4), rotatable about the swivel joint, is essentially radially lifted or released from pressure from the inner surface (6) of bottle neck (2).
  2. A locking device according to claim 1, characterised in that sealing part (4) has an axial stop (10) radially outside the narrowing of cross-section (8) acting as a swivel joint, for resting on an opposingly located counter stop (11) on the bottle neck (2).
  3. A locking device according to claim 2, characterised in that stop (10) is arranged in the radial area of the end surface of a bottle neck forming the counter stop (11).
  4. A locking device according to claim 1, characterised in that at least one rib (15) is arranged in the angle between the base (3) and sealing part (4) for stiffening the angle lever constructed through same.
  5. A locking device according to claim 4, characterised in that rib (15) extends axially in the area of its cross-over to the cylindrical sealing part (4) as far as an area spaced from radial projection (5) on sealing part (4).
  6. A locking device according to claim 4, characterised in that rib (15) is radially spaced from axis (16) of locking part (1) in the area of its cross-over to the base (3).
  7. A locking device according to claim 4, characterised in that rib (15) is triangular.
  8. A locking device according to claim 1, characterised in that the narrowing of cross-section (8) is radially so-arranged that the swivel joint constructed by same is located on the extended inner surface (6) of bottle neck (2).
EP96937235A 1995-10-31 1996-10-25 Closure for a bottle or the like Expired - Lifetime EP0858416B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19540560 1995-10-31
DE19540560 1995-10-31
DE19613830 1996-04-06
DE19613830A DE19613830C2 (en) 1995-10-31 1996-04-06 Closure for a bottle or the like
PCT/EP1996/004646 WO1997016356A1 (en) 1995-10-31 1996-10-25 Closure for a bottle or the like

Publications (3)

Publication Number Publication Date
EP0858416A1 EP0858416A1 (en) 1998-08-19
EP0858416B1 true EP0858416B1 (en) 1999-08-04
EP0858416B2 EP0858416B2 (en) 2003-04-09

Family

ID=26019957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96937235A Expired - Lifetime EP0858416B2 (en) 1995-10-31 1996-10-25 Closure for a bottle or the like

Country Status (19)

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US (1) US6021912A (en)
EP (1) EP0858416B2 (en)
JP (1) JP3712419B2 (en)
CN (1) CN1076304C (en)
AT (1) ATE182853T1 (en)
AU (1) AU708953B2 (en)
BR (1) BR9611204A (en)
CA (1) CA2235743A1 (en)
CZ (1) CZ290059B6 (en)
DE (2) DE29623290U1 (en)
DK (1) DK0858416T4 (en)
ES (1) ES2137019T5 (en)
GR (1) GR3031694T3 (en)
HK (1) HK1016141A1 (en)
HU (1) HU225530B1 (en)
NO (1) NO324160B1 (en)
PL (1) PL185699B1 (en)
TR (1) TR199800758T2 (en)
WO (1) WO1997016356A1 (en)

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Also Published As

Publication number Publication date
ES2137019T3 (en) 1999-12-01
CZ290059B6 (en) 2002-05-15
DE29623290U1 (en) 1998-02-19
HU225530B1 (en) 2007-01-29
NO981960L (en) 1998-04-30
GR3031694T3 (en) 2000-02-29
CN1201429A (en) 1998-12-09
HUP9900731A3 (en) 2000-06-28
DK0858416T3 (en) 2000-03-06
CZ130798A3 (en) 1999-06-16
ES2137019T5 (en) 2003-12-16
NO981960D0 (en) 1998-04-30
AU708953B2 (en) 1999-08-19
EP0858416A1 (en) 1998-08-19
MX9803279A (en) 1998-09-30
AU7492196A (en) 1997-05-22
TR199800758T2 (en) 1998-07-21
DE59602656D1 (en) 1999-09-09
CA2235743A1 (en) 1997-05-09
JPH11514614A (en) 1999-12-14
PL327989A1 (en) 1999-01-04
HK1016141A1 (en) 1999-10-29
NO324160B1 (en) 2007-09-03
WO1997016356A1 (en) 1997-05-09
ATE182853T1 (en) 1999-08-15
PL185699B1 (en) 2003-07-31
DK0858416T4 (en) 2003-07-28
JP3712419B2 (en) 2005-11-02
BR9611204A (en) 1999-04-06
EP0858416B2 (en) 2003-04-09
CN1076304C (en) 2001-12-19
HUP9900731A2 (en) 1999-06-28
US6021912A (en) 2000-02-08

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