EP0564999A1 - Bottle cap with warranty ring - Google Patents

Bottle cap with warranty ring Download PDF

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Publication number
EP0564999A1
EP0564999A1 EP93105518A EP93105518A EP0564999A1 EP 0564999 A1 EP0564999 A1 EP 0564999A1 EP 93105518 A EP93105518 A EP 93105518A EP 93105518 A EP93105518 A EP 93105518A EP 0564999 A1 EP0564999 A1 EP 0564999A1
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EP
European Patent Office
Prior art keywords
cap
cap according
ring
projections
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93105518A
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German (de)
French (fr)
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EP0564999B1 (en
Inventor
Marcel Dr. Wunderli
Wilhelm Dipl.-Ing. Wazel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wanzl GmbH and Co Holding KG
Original Assignee
Mouldtec PVG AG
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Publication date
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Publication of EP0564999A1 publication Critical patent/EP0564999A1/en
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Publication of EP0564999B1 publication Critical patent/EP0564999B1/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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/35—Vertical or axial lines of weakness

Definitions

  • the invention relates to a cap that can be placed on a bottle neck and has a locking ring according to the preamble of patent claim 1.
  • Beverage bottles are usually closed either by crown caps or by reusable screw caps. While the crown cap's originality is guaranteed by the fact that it is deformed when the bottle is opened and therefore cannot be reused, screw caps can be opened and then closed again without the consumer having to buy one such bottle can easily determine this. To ensure the originality of screw caps, they are therefore provided with so-called tamper-evident rings. Circlips of this type are connected to the closure cap via a predetermined breaking point, so that the predetermined breaking point is damaged when the beverage bottle is opened and the opening of the bottle for the first time can thus be reliably recognized from the outside. To ensure this security function it is necessary that the retaining ring is held on the bottle neck until it breaks when the cap is removed.
  • locking rings of this type are usually designed in such a way that they engage behind a projecting, circumferential bead radially inwards in the region of the bottle collar.
  • the cap When the cap is pulled off, the cap is moved upward in accordance with the thread pitch of the screw cap, while the retaining ring is held on the bottle collar in the region of the bead. This leads to increasing tensile stresses, which ultimately lead to the securing ring being torn off the cap along a predetermined predetermined breaking line.
  • German patent DE 3206245 describes in this connection a guarantee ring made of plastic for metallic screw cap containers, the guarantee ring being received in a U-shaped, radially inwardly open bead at the lower end of the jacket of the screw cap. When the metal cap is unscrewed, the plastic ring is separated from the metal cap and remains on the beverage bottle.
  • a screw closure for containers which comprises a safety ring which has an inwardly directed, positively engaging under or behind the radial projection of a beverage bottle engaging catch.
  • the safety ring is connected to the cap by means of a thin film-like web, so that when the cap is pulled off, the safety ring tears off along this web and remains on the bottle.
  • the document EP-0335949 describes a screw cap for beverage bottles with a safety ring, which also has a latching approach, which is similar by means of an inwardly directed barb-like latching gripping under the radial projection in the opening region of the container, this latching approach However, it is not circumferential but is only formed in sections. This has the advantage that the cap, which is formed in one piece together with the safety ring, is screwed onto the beverage bottle, the catch of the safety ring snapping behind the radial projection in the opening area of the container and thus a renewed opening of the cap is only possible by the locking ring of the cap tears off. With this solution too, the retaining ring remains on the bottle neck.
  • Screw caps for beverage containers with a safety ring have to meet further requirements today. For cost reasons, it has now become indispensable to manufacture the cap together with the safety ring in one piece. Mounting the safety ring on a cap made of metal, for example, is no longer economical. Screw caps formed in one piece, which comprise the cap on the safety ring, are usually produced in such a way that the cap and the safety ring are initially produced as separate parts, the safety ring being welded to the cap in a second operation. Only in this way has it been possible to produce a cap of this type with a safety ring designed to engage behind.
  • the safety ring which is preferably made of plastic, remains on the bottle neck, since the bottles are melted again during the recycling process, the plastic of the safety ring burning and thus polluting the atmosphere. From a recycling point of view, it is desirable today to make it easier to separate the different materials. For this reason, it is necessary to develop a screw closure with a safety ring in such a way that the safety ring is visibly damaged when the cap is removed and remains on the cap at the same time.
  • the object of the invention is to provide a cap with a safety ring for beverage bottles, which is simple and inexpensive to manufacture and eliminates the disadvantages shown.
  • the locking ring formed on the closure cap has projections arranged in sections, which protrude radially inwards in the direction of the bottle neck and engage behind the bead on the bottle neck.
  • the projections formed on the locking ring have at least two different designs in their cross-sectional geometry.
  • the cross-sectional geometry of a first projection is bead-like, with a rounded front end, and that of a second projection is edge-like, with a sharp, pointed edge, the projections tapering in a wedge shape in their lower region.
  • the rounded bead-like projections primarily serve to horizontally expand the locking ring when the cap is pulled off, by pulling it up onto the circumferential projection on the bottle neck.
  • the second projection which is formed on the retaining ring and has a sharp, angular cross-sectional geometry, serves, on the other hand, to hold the retaining ring on the bottle neck in the vertical direction. Said horizontal expansion through the first projections in connection with the vertical retention of the second projection causes the snap ring to be torn open quickly and reliably.
  • a tear-off point extending essentially parallel to the cap axis is provided in the safety system, the tear-off point being formed in accordance with an advantageous embodiment by two preferably V-shaped recesses in the safety ring.
  • a first V-shaped recess extends from the cap-side upper edge of the securing ring to the lower edge, while a second recess forms an incision in the axis of the first recess of the securing ring from the outer surface thereof.
  • recesses are advantageously provided in the lower edge of the locking ring. These recesses are advantageously located next to the bead-like projections and in alignment with the tear-off point below them.
  • the tear-off point is reinforced around the lower area by a web which bridges a film hinge or the tear-off point.
  • the securing ring can have a plurality of rectangular recesses in order to save material and the thread of the cap can be formed only in sections.
  • the closure element shown schematically in Fig. 1 in side section is generally designated 1.
  • the closure element 1 consists of the closure cap 2 and the locking ring 3.
  • the molded thread 4 which is only partially formed here, can be seen.
  • the locking ring 3 is connected to the cap via narrow tear-off webs 5.
  • the differently shaped, radially inward-pointing projections at the lower end of the retaining ring are clearly recognizable.
  • On the left the bead-like projection 6 with a rounded front end 7 and on the right the edge-like projection 8 is shown, which has a sharp, pointed edge 9.
  • the configuration of a downwardly open recess 10 is shown at the lower edge of the locking ring 3.
  • the recess 10 is preferably (not shown here) immediately next to the bead-like projections 6 and below a tear-off point (see FIG. 4).
  • the locking ring 3 has window-like recesses, which are arranged here above the edge-like projection 8.
  • Fig. 2 shows a horizontal section through the cap at the level of the tear-off webs 5 of the locking ring 3.
  • the projections 6 and 8 projecting radially inwards towards the bottle neck can be seen here, which, as shown here, have curves in the Open the wall of the circlip.
  • the tear-off point 12 with the axially extending, V-shaped recess 13 can be seen.
  • the edge-like projection 8 is arranged in the vicinity of the tear-off point 12.
  • FIG. 3 shows a further horizontal section through the closure cap in the region of the closure cap itself. This section clearly shows the thread turns 4 which are formed in sections and which are integrally formed on the cap jacket 2. The threads 4 open into the wall of the cap casing 2 via curves.
  • Fig. 4 shows an embodiment of the tear-off point 12.
  • This is essentially formed by two V-shaped recesses, the V-shaped recess 13 already described in FIG. 2 extending inwards from the outer surface of the retaining ring, so that the axis the recess is oriented parallel to the axial direction of the closure cap.
  • a wider V-shaped recess 14 is arranged perpendicular to the V-shaped recess 13 and extends from the cap-side upper edge of the retaining ring to the lower edge, tapering to a point, the tip of the recess 14 coinciding with the axis of the recess 13.
  • the recess 10 provided at the lower edge of the locking ring 3 can be seen, which is arranged in alignment with the tear-off point.
  • the edge-like projection 8 is arranged together with a window-shaped recess 11.
  • this representation shows the more detailed details of the cross-sectional geometries of the bead-like projection 6.
  • this representation shows the rounded course 7 of the projection, to which the wedge-shaped region 15 adjoins at the bottom.
  • the cross-sectional geometry of the edge-like projection 8 is characterized in particular by the projecting surface 16, which is at an angle ⁇ , which is preferably less than 90 °, with respect to the wall the locking ring is arranged.
  • the wedge-shaped tapering region 15 of the projection 8 extends below the sharp edge 9.

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

Abstract

In a plastic cap (1) which can be fitted, in particular screwed, onto a bottle neck, having a tamper-proof warranty ring (3) which is connected via an intended tearing point to the outer cap surface and, in the fitted-on position of the cap, engages behind a bead or the like constructed on the bottle neck, projections (6, 8) are provided, which are arranged in sections on the warranty ring, project radially inwards in the direction of the bottle neck and have at least two different constructions in their cross-sectional geometry (6, 8). <IMAGE>

Description

Die Erfindung betrifft eine auf einen Flaschenhals aufsetzbare Kappe mit einem Sicherungsring gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a cap that can be placed on a bottle neck and has a locking ring according to the preamble of patent claim 1.

Getränkeflaschen sind üblicherweise entweder durch Kronenkorken oder durch mehrfach verwendbare Schraubverschlüsse verschlossen. Während beim Kronenkorken die Originalität des Verschlusses dadurch gewährleistet ist, daß dieser beim Öffnen der Flasche deformiert wird und daher nicht wiederverwendet werden kann, ist es bei Schraubverschlüssen dagegen denkbar, daß Getränkeflaschen geöffnet werden und danach wieder verschlossen werden, ohne daß der Verbraucher beim Kauf einer derartigen Flasche dies ohne weiteres feststellen kann. Um die Originalität von Schraubverschlüssen sicherzustellen, werden diese daher mit sogenannten Originalitätssicherungsringen versehen. Derartige Sicherungsringe sind mit der Verschlußkappe über eine Sollbruchstelle verbunden, so daß beim Öffnen der Getränkeflasche die Sollbruchstelle beschädigt wird und damit von außen her das erstmalige öffnen der Flasche sicher erkennbar ist. Zur Gewährleistung dieser Sicherungsfunktion ist es notwendig, daß der Sicherungsring beim Abziehen der Kappe auf dem Flaschenhals bis zum Bruch gehalten wird. Zu diesem Zweck sind derartige Sicherungsringe üblicherweise so gestaltet, daß sie einen vorspringenden, umlaufenden Wulst im Bereich des Flaschenkragens radial nach innen hintergreifen. Beim Abziehen der Kappe wird in diese entsprechend der Gewindesteigung des Schraubverschlusses nach oben bewegt, während der Sicherungsring im Bereich des Wulstes am Flaschenkragen gehalten ist. Damit entstehen in zunehmendem Maße Zugspannungen, welche schließlich dazu führen, daß der Sicherungsring entlang einer vorgegebenen Sollbruchlinie von der Kappe abgerissen wird.Beverage bottles are usually closed either by crown caps or by reusable screw caps. While the crown cap's originality is guaranteed by the fact that it is deformed when the bottle is opened and therefore cannot be reused, screw caps can be opened and then closed again without the consumer having to buy one such bottle can easily determine this. To ensure the originality of screw caps, they are therefore provided with so-called tamper-evident rings. Circlips of this type are connected to the closure cap via a predetermined breaking point, so that the predetermined breaking point is damaged when the beverage bottle is opened and the opening of the bottle for the first time can thus be reliably recognized from the outside. To ensure this security function it is necessary that the retaining ring is held on the bottle neck until it breaks when the cap is removed. For this purpose, locking rings of this type are usually designed in such a way that they engage behind a projecting, circumferential bead radially inwards in the region of the bottle collar. When the cap is pulled off, the cap is moved upward in accordance with the thread pitch of the screw cap, while the retaining ring is held on the bottle collar in the region of the bead. This leads to increasing tensile stresses, which ultimately lead to the securing ring being torn off the cap along a predetermined predetermined breaking line.

Die deutsche Patentschrift DE 3206245 beschreibt in diesem Zusammenhang einen Garantiering aus Kunststoff für metallische Schraubverschlußkappenbehältern, wobei der Garantiering in einem U-förmig ausgeformten, radial nach innen offenen Wulstrand am unteren Ende des Mantels der Schraubverschlußkappe aufgenommen ist. Beim Aufdrehen der Metallkappe wird der Kunststoffring von der Metallkappe getrennt und verbleibt auf der Getränkeflasche.The German patent DE 3206245 describes in this connection a guarantee ring made of plastic for metallic screw cap containers, the guarantee ring being received in a U-shaped, radially inwardly open bead at the lower end of the jacket of the screw cap. When the metal cap is unscrewed, the plastic ring is separated from the metal cap and remains on the beverage bottle.

Aus dem Dokument DE-3038453 ist ein Schraubverschluß für Behälter bekannt, welcher einen Sicherheitsring umfaßt, der an seiner Innenseite einen einwärts gerichteten, formschlüssig unter oder hinter den radialen Vorsprung einer Getränkeflasche greifenden Rastansatz aufweist. Der Sicherheitsring ist nach dieser Lösung mittels eines dünnen filmartigen Steges mit der Kappe verbunden, so daß beim Abziehen der Kappe der Sicherheitsring entlang dieses Steges abreißt und auf der Flasche zurückbleibt.From document DE-3038453 a screw closure for containers is known, which comprises a safety ring which has an inwardly directed, positively engaging under or behind the radial projection of a beverage bottle engaging catch. According to this solution, the safety ring is connected to the cap by means of a thin film-like web, so that when the cap is pulled off, the safety ring tears off along this web and remains on the bottle.

Die Druckschrift EP-0335949 beschreibt einen Schraubverschluß für Getränkeflaschen mit einem Sicherheitsring, welcher ebenfalls mittels einer einwärts gerichteten, unter den radialen Vorsprung im Öffnungsbereich des Behälters greifenden, Widerhaken ähnlichen Rastansatz aufweist, wobei dieser Rastansatz jedoch nicht umlaufend sondern nur abschnittsweise ausgebildet ist. Dies hat den Vorteil, daß die einstückig zusammen mit Sicherheitsring ausgebildete Kappe auf die Getränkeflasche aufgeschraubt wird, wobei der Rastansatz des Sicherheitsringes hinter den radialen Vorsprung im Öffnungsbereich des Behältes schnappt und somit ein nochmaliges Öffnen der Kappe nur möglich ist, indem der Sicherungsring von der Kappe abreißt. Auch bei dieser Lösung bleibt also der Sicherungsring auf dem Flaschenhals zurück.The document EP-0335949 describes a screw cap for beverage bottles with a safety ring, which also has a latching approach, which is similar by means of an inwardly directed barb-like latching gripping under the radial projection in the opening region of the container, this latching approach However, it is not circumferential but is only formed in sections. This has the advantage that the cap, which is formed in one piece together with the safety ring, is screwed onto the beverage bottle, the catch of the safety ring snapping behind the radial projection in the opening area of the container and thus a renewed opening of the cap is only possible by the locking ring of the cap tears off. With this solution too, the retaining ring remains on the bottle neck.

Schraubverschlüsse für Getränkebehälter mit einem Sicherheitsring müssen heute jedoch weitergehenden Anforderungen gerecht werden. Aus Kostengründen ist es inzwischen unverzichtbar geworden, die Kappe zusammen mit dem Sicherheitsring in einstückiger Ausbildung herzustellen. Eine Montage des Sicherheitsrings auf eine beispielsweise aus Metall gebildete Kappe ist heute nicht mehr wirtschaftlich. Einstückig ausgebildete Schraubverschlüsse, welche die Kappe an dem Sicherheitsring umfassen, werden üblicherweise so hergestellt, daß die Kappe und der Sicherheitsring zunächst als separate Teile hergestellt werden, wobei in einem zweiten Arbeitsgang der Sicherheitsring mit der Kappe verschweißt wird. Nur so war es bisher möglich eine derartige Kappe mit einem hintergriffig ausgebildeten Sicherheitsring herzustellen.However, screw caps for beverage containers with a safety ring have to meet further requirements today. For cost reasons, it has now become indispensable to manufacture the cap together with the safety ring in one piece. Mounting the safety ring on a cap made of metal, for example, is no longer economical. Screw caps formed in one piece, which comprise the cap on the safety ring, are usually produced in such a way that the cap and the safety ring are initially produced as separate parts, the safety ring being welded to the cap in a second operation. Only in this way has it been possible to produce a cap of this type with a safety ring designed to engage behind.

Des weiteren ist es heute aus Umweltschutzgründen nicht mehr erwünscht, daß der vorzugsweise aus Kunststoff gebildete Sicherheitsring auf dem Flaschenhals zurückbleibt, da die Flaschen während des Recycling-Prozesses wieder aufgeschmozen werden, wobei der Kunststoff des Sicherheitsringes verbrennt und damit die Atmosphäre belastet wird. Aus recyclingtechnischen Gesichtspunkten ist es heute erwünscht, eine erleichterte Trennung der verschiedenen Materialien zu ermöglichen. Aus diesem Grund ist es notwendig, einen Schraubverschluß mit Sicherheitsring dahingehend weiterzubilden, daß der Sicherheitsring beim Abziehen der Kappe deutlich sichtbar beschädigt wird und gleichzeitig an der Kappe verbleibt.Furthermore, it is no longer desirable for environmental reasons that the safety ring, which is preferably made of plastic, remains on the bottle neck, since the bottles are melted again during the recycling process, the plastic of the safety ring burning and thus polluting the atmosphere. From a recycling point of view, it is desirable today to make it easier to separate the different materials. For this reason, it is necessary to develop a screw closure with a safety ring in such a way that the safety ring is visibly damaged when the cap is removed and remains on the cap at the same time.

Aufgabe der Erfindung ist es eine Verschlußkappe mit Sicherheitsring für Getränkeflaschen anzugeben, welche einfach und kostengünstig herstellbar ist und die aufgezeigten Nachteile beseitigt.The object of the invention is to provide a cap with a safety ring for beverage bottles, which is simple and inexpensive to manufacture and eliminates the disadvantages shown.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst, wobei zweckmäßige Weiterbildungen der Erfindung durch die in den Unteransprüchen wiedergegebenen Merkmale gekennzeichnet sind.This object is achieved by the characterizing features of claim 1, expedient developments of the invention being characterized by the features set out in the subclaims.

Nach Maßgabe der Erfindung weist der an der Verschlußkappe angeformte Sicherungsring abschnittweise angeordnete Vorsprünge auf, welche radial nach innen in Richtung auf den Flaschenhals vorstehen und die Wulst am Flaschenhals hintergreifen. Die am Sicherungsring angeformten Vorsprünge weisen mindestens zwei unterschiedliche Ausbildungen in ihrer Querschnittsgeometrie auf. Entsprechend einer vorteilhaften Ausgestaltung ist die Querschnittsgeometrie eines ersten Vorsprunges wulstartig, mit gerundetem Vorderende ausgebildet und die eines zweiten Vorsprunges kantenartig, mit einer scharfen spitzen Kante, wobei sich die Vorsprünge in ihrem unteren Bereich keilförmig verjüngen.In accordance with the invention, the locking ring formed on the closure cap has projections arranged in sections, which protrude radially inwards in the direction of the bottle neck and engage behind the bead on the bottle neck. The projections formed on the locking ring have at least two different designs in their cross-sectional geometry. According to an advantageous embodiment, the cross-sectional geometry of a first projection is bead-like, with a rounded front end, and that of a second projection is edge-like, with a sharp, pointed edge, the projections tapering in a wedge shape in their lower region.

Aufgrund der unterschiedlichen Querschnittsgeometrie der besagten Vorsprünge erfüllen diese unterschiedliche Funktionen. Die gerundeten wulstartigen Vorsprünge dienen in erster Linie einer horizontalen Ausweitung des Sicherungsrings beim Abziehen der Kappe, indem diese nach oben auf den umlaufenden Vorsprung auf den Flaschenhals gezogen werden. Der zweite, am Sicherungsring angeformte Vorsprung, welcher eine scharfe, kantige Querschnittsgeometrie aufweist, dient dagegen dazu, den Sicherungsring in vertikale Richtung am Flaschenhals zu halten. Die besagte horizontale Ausweitung durch die ersten Vorsprünge in Verbindung mit dem vertikalen Zurückhalten des zweiten Vorsprungs bewirkt ein schnelles und zuverlässiges Aufreißen des Sicherungsringes.Due to the different cross-sectional geometry of the said projections, they perform different functions. The rounded bead-like projections primarily serve to horizontally expand the locking ring when the cap is pulled off, by pulling it up onto the circumferential projection on the bottle neck. The second projection, which is formed on the retaining ring and has a sharp, angular cross-sectional geometry, serves, on the other hand, to hold the retaining ring on the bottle neck in the vertical direction. Said horizontal expansion through the first projections in connection with the vertical retention of the second projection causes the snap ring to be torn open quickly and reliably.

Zu diesem Zweck ist eine im wesentlichen parallel zur Kappenachse sich erstreckende Abreißstelle im Sicherungssystem vorgesehen, wobei die Abreißstelle entsprechend einer vorteilhaften Ausgestaltung durch zwei vorzugsweise V-förmige Ausnehmungen des Sicherungsringes gebildet ist. Eine erste V-förmige Ausnehmung erstreckt sich hierbei von der kappenseitigen Oberkante des Sicherungsrings spitzzulaufend zur Unterkante hin, während eine zweite Ausnehmung einen Einschnitt in der Achse der ersten Ausnehmung des Sicherungsringes von dessen Außenfläche her bildet. Um die Dehnung und das Aufreißen des Sicherungsringes zu erleichtern, sind vorteilhafterweise im unteren Rand des Sicherungsringes vorgesehene Ausnehmungen vorgesehen. Diese Ausnehmungen befinden sich vorteilhafterweise neben den wulstartigen Vorsprüngen sowie in Ausrichtung mit Abreißstelle unterhalb derselben. Um ein zerstörungsfreies Aufsetzen der Kappe auf die Flasche zu ermöglichen, ist die Abreißstelle um unteren Bereich durch einen Steg verstärkt, welcher ein Filmscharnier bzw. die Abreißstelle überbrückt.For this purpose, a tear-off point extending essentially parallel to the cap axis is provided in the safety system, the tear-off point being formed in accordance with an advantageous embodiment by two preferably V-shaped recesses in the safety ring. A first V-shaped recess extends from the cap-side upper edge of the securing ring to the lower edge, while a second recess forms an incision in the axis of the first recess of the securing ring from the outer surface thereof. In order to facilitate the expansion and the tearing of the locking ring, recesses are advantageously provided in the lower edge of the locking ring. These recesses are advantageously located next to the bead-like projections and in alignment with the tear-off point below them. In order to enable a non-destructive placement of the cap on the bottle, the tear-off point is reinforced around the lower area by a web which bridges a film hinge or the tear-off point.

Gemäß weiteren vorteilhaften Ausgestaltungen kann zur Materialersparnis der Sicherungsring mehrere rechteckige Ausnehmungen aufweisen und das Gewinde der Kappe nur abschnittsweise ausgebildet sein.According to further advantageous refinements, the securing ring can have a plurality of rectangular recesses in order to save material and the thread of the cap can be formed only in sections.

Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand verschiedener Zeichnungen näher erläutert. Darin zeigen:

Fig. 1
eine schematische Querschnittsansicht des Schraubverschlusses;
Fig. 2
einen Horizontalschnitt durch den Sicherungsring;
Fig. 3
einen Horizontalschnitt durch die Verschlußkappe;
Fig. 4
einen Seitenansicht des Sicherungsringes im Bereich der Abreißstelle;
Fig. 5
die Querschnittsgeometrie des wulstartigen Vorsprunges, und
Fig. 6
die Querschnittsgeometrie des kantenartigen Vorsprunges.
An exemplary embodiment of the invention is explained in more detail below with the aid of various drawings. In it show:
Fig. 1
a schematic cross-sectional view of the screw cap;
Fig. 2
a horizontal section through the locking ring;
Fig. 3
a horizontal section through the cap;
Fig. 4
a side view of the locking ring in the region of the tear-off point;
Fig. 5
the cross-sectional geometry of the bead-like projection, and
Fig. 6
the cross-sectional geometry of the edge-like projection.

Das in Fig. 1 im Seitenschnitt schematisch dargestellte Verschlußelement ist allgemein mit 1 bezeichnet. Wie der Darstellung zu entnehmen ist besteht das Verschlußelement 1 aus der Verschlußkappe 2 und dem Sicherungsring 3. Im Bereich des Kappenmantels ist das angeformte, hier nur abschnittsweise ausgebildete Gewinde 4 erkennbar. Der Sicherungsring 3 ist über schmale Abreißstege 5 mit der Kappe verbunden. Deutlich erkennbar sind die unterschiedlich ausgebildeten, radial nach innen weisenden Vorsprünge am unteren Ende des Sicherungsringes. Links ist der wulstartige Vorsprung 6 mit gerundetem Vorderende 7 und rechts der kantenartige Vorsprung 8 gezeigt, welcher eine scharfe, spitze Kante 9 aufweist. Ferner ist am unteren Rand des Sicherungrings 3 die Ausgestaltung einer nach unten hin offenen Ausnehmung 10 dargestellt. Die Ausnehmung 10 ist vorzugsweise (hier nicht gezeigt) unmittelbar neben den wulstartigen Vorsprüngen 6 sowie unterhalb einer Abrißstelle (siehe Fig. 4) angeordnet. Darüber hinaus weist der Sicherungsring 3 fensterartige Ausnehmungen auf, welche hier oberhalb des kantenartigen Vorsprunges 8 angeordnet sind.The closure element shown schematically in Fig. 1 in side section is generally designated 1. As can be seen from the illustration, the closure element 1 consists of the closure cap 2 and the locking ring 3. In the region of the cap shell, the molded thread 4, which is only partially formed here, can be seen. The locking ring 3 is connected to the cap via narrow tear-off webs 5. The differently shaped, radially inward-pointing projections at the lower end of the retaining ring are clearly recognizable. On the left the bead-like projection 6 with a rounded front end 7 and on the right the edge-like projection 8 is shown, which has a sharp, pointed edge 9. Furthermore, the configuration of a downwardly open recess 10 is shown at the lower edge of the locking ring 3. The recess 10 is preferably (not shown here) immediately next to the bead-like projections 6 and below a tear-off point (see FIG. 4). In addition, the locking ring 3 has window-like recesses, which are arranged here above the edge-like projection 8.

Fig. 2 zeigt einen Horizontalschnitt durch die Verschlußkappe in Höhe der Abrißstege 5 des Sicherungsringes 3. Neben den halbrund ausgebildeten Abrißstegen 5 sind hier die radial nach innen in Richtung auf den Flaschenhals vorstehenden Vorsprünge 6 und 8 erkennbar, die wie hier gezeigt über Rundungen in die Wand des Sicherungsringes einmünden. Ferner ist die Abreißstelle 12 mit der axial verlaufenden, V-förmigen Ausnehmung 13 erkennbar. Insbesondere wird aus dieser Darstellung deutlich, daß der kantenartige Vorsprung 8 in der Nähe der Abreißstelle 12 angeordnet ist.Fig. 2 shows a horizontal section through the cap at the level of the tear-off webs 5 of the locking ring 3. In addition to the semicircular tear-off webs 5, the projections 6 and 8 projecting radially inwards towards the bottle neck can be seen here, which, as shown here, have curves in the Open the wall of the circlip. Furthermore, the tear-off point 12 with the axially extending, V-shaped recess 13 can be seen. In particular, it is clear from this illustration that the edge-like projection 8 is arranged in the vicinity of the tear-off point 12.

Fig. 3 zeigt einen weiteren Horizonalschnitt durch die Verschlußkappe im Bereich der Verschlußkappe selbst. Aus dieser Darstellung sind deutlich die abschnittsweise ausgebildeten Gewindegänge 4 entnehmbar, welche am Kappenmantel 2 angeformt sind. Die Gewindegänge 4 münden über Rundungen in die Wand des Kappenmantels 2.3 shows a further horizontal section through the closure cap in the region of the closure cap itself. This section clearly shows the thread turns 4 which are formed in sections and which are integrally formed on the cap jacket 2. The threads 4 open into the wall of the cap casing 2 via curves.

Fig. 4 zeigt ein Ausführungsbeispiel der Abreißstelle 12. Diese wird im wesentlichen durch zwei V-förmige Ausnehmungen gebildet, wobei sich die bereits in Fig. 2 beschriebene V-förmige Ausnehmung 13 von der Außenfläche des Sicherungsringes her nach innen erstreckt, so daß die Achse der Ausnehmung parallel zur Axialrichtung der Verschlußkappe orientiert ist. Eine weistere V-förmige Ausnehmung 14 ist senkrecht zur V-förmige Ausnehmung 13 angeordnet und erstreckt sich von der kappenseitigen Oberkante des Sicherungsringes zur Unterkante hin, spitz zulaufend, wobei die Spitze der Ausnehmung 14 mit der Achse der Ausnehmung 13 zusammenfällt. Des weiteren ist die am unteren Rand des Sicherungsringes 3 vorgesehene Ausnehmung 10 erkennbar, welche in Ausrichtung mit der Abreißstelle angeordnet ist. Rechts neben der Abreißstelle ist der kantenartige Vorsprung 8 zusammen mit einer fensterförmigen Ausnehmung 11 angeordnet.Fig. 4 shows an embodiment of the tear-off point 12. This is essentially formed by two V-shaped recesses, the V-shaped recess 13 already described in FIG. 2 extending inwards from the outer surface of the retaining ring, so that the axis the recess is oriented parallel to the axial direction of the closure cap. A wider V-shaped recess 14 is arranged perpendicular to the V-shaped recess 13 and extends from the cap-side upper edge of the retaining ring to the lower edge, tapering to a point, the tip of the recess 14 coinciding with the axis of the recess 13. Furthermore, the recess 10 provided at the lower edge of the locking ring 3 can be seen, which is arranged in alignment with the tear-off point. To the right of the tear-off point, the edge-like projection 8 is arranged together with a window-shaped recess 11.

Fig. 5 zeigt die näheren Einzelheiten der Querschnittsgeometire des wulstartigen Vorsprunges 6. Insbesonder ist in dieser Darstellung der gerundete Verlauf 7 des Vorsprunges erkennbar, an dem sich nach unten hin der sich keilförmig verjüngende Bereich 15 anschließt.5 shows the more detailed details of the cross-sectional geometries of the bead-like projection 6. In particular, this representation shows the rounded course 7 of the projection, to which the wedge-shaped region 15 adjoins at the bottom.

Fig. 6 zeigt die Querschnittsgeometrie des kantenartigen Vorsprunges 8 mit der scharfen, spitzen Kante 9. Die Querschnittsgeometrie des kantenartigen Vorsprunges 8 ist insbesonder durch die vorspringende Fläche 16 gekennzeichnet, welche unter einem Winkel α, der vorzugsweise kleiner als 90° ist, gegenüber der Wand des Sicherungsringes angeordnet ist.6 shows the cross-sectional geometry of the edge-like projection 8 with the sharp, pointed edge 9. The cross-sectional geometry of the edge-like projection 8 is characterized in particular by the projecting surface 16, which is at an angle α, which is preferably less than 90 °, with respect to the wall the locking ring is arranged.

Unterhalb der scharfen Kante 9 erstreckt sich der sich keilförmig verjüngende Bereich 15 des Vorsprunges 8.The wedge-shaped tapering region 15 of the projection 8 extends below the sharp edge 9.

Claims (15)

Auf einen Flaschenhals aufsetzbare, insbesondere aufschraubbare Kappe aus Kunststoff mit einem über eine Sollbruchstelle mit dem Kappenmantel verbundenen Orginalitätssicherungsring, der in aufgesetzter Stellung der Kappe eine am Flaschenhals ausgebildete Wulst oder dgl. hintergreift, dadurch gekennzeichnet, daß der Sicherungsring (3) die Wulst am Flaschenhals mit über dem Umfang des Sicherungsrings abschnittsweise angeordneten Vorsprüngen (6, 8) hintergreift, wobei die Vorsprünge (6, 8) radial nach innen in Richtung auf den Flaschenhals vorstehen und mindestens zwei unterschiedliche Ausbildungen in ihrer Querschnittsgeometrie aufweisen.Plastic cap that can be placed on a bottle neck, in particular screwed on, with an originality securing ring connected to the cap jacket via a predetermined breaking point, which in the attached position engages behind a bead or the like formed on the bottle neck, characterized in that the securing ring (3) has the bead on the bottle neck engages with projections (6, 8) arranged in sections over the circumference of the securing ring, the projections (6, 8) projecting radially inwards towards the bottle neck and having at least two different configurations in their cross-sectional geometry. Kappe nach Anspruch 1, dadurch gekennzeichnet, daß ein erster Vorsprung (6) eine wulstartige Querschnittsgeometrie mit gerundetem Vorderende (7) und ein zweiter Vorsprung (8) eine kantenartige Querschnittsgeometrie mit einer scharfen, spitzen Kante (9) aufweist.Cap according to claim 1, characterized in that a first projection (6) has a bead-like cross-sectional geometry with a rounded front end (7) and a second projection (8) has an edge-like cross-sectional geometry with a sharp, pointed edge (9). Kappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Vorsprünge sich in ihrem unteren Bereich (15) keilförmig verjüngen.Cap according to one of the preceding claims, characterized in that the projections taper in a wedge shape in their lower region (15). Kappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die kanten- und/oder wulstartigen Vorsprünge (6, 8) über Rundungen (17) in die Wand des Sicherungsrings (3) einmünden.Cap according to one of the preceding claims, characterized in that the edge-like and / or bead-like projections (6, 8) open into the wall of the securing ring (3) via curves (17). Kappe nach Anspruch 2, dadurch gekennzeichnet, daß die kantenförmigen Vorsprünge (8) eine vorspringende Fläche (16) aufweisen, die vorzugsweise um einen Winkel α von 70° - 90° gegenüber der inneren Umfangsfläche des Sicherungsringes (3) abgesetzt ist.Cap according to claim 2, characterized in that the edge-shaped projections (8) have a projecting surface (16) which is preferably offset by an angle α of 70 ° - 90 ° with respect to the inner peripheral surface of the locking ring (3). Kappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Außenkanten des Sicherungsrings (3) gerundet sind.Cap according to one of the preceding claims, characterized in that the outer edges of the locking ring (3) are rounded. Kappe nach einem der vorhergehenden Ansprüche, mit einer im wesentlichen parallel zur Kappenachse sich erstreckenden Abreißstelle im Sicherungsring, dadurch gekennzeichnet, daß die Abreißstelle (12) durch zwei vorzugsweise V-förmigen Ausnehmungen des Sicherungsrings (3) gebildet ist, wobei sich die erste Ausnehmung (14) von der kappenseitigen Oberkante des Sicherungsringes zur Unterkante hin, spitz zulaufend erstreckt und die zweite Ausnehmung (13) einen Einschnitt in der Achse der ersten Ausnehmung des Sicherungsringes von dessen Außenfläche her bildet.Cap according to one of the preceding claims, with a tear-off point in the locking ring which extends essentially parallel to the cap axis, characterized in that the tear-off point (12) is formed by two preferably V-shaped recesses in the locking ring (3), the first recess ( 14) extends from the cap-side upper edge of the retaining ring to the lower edge, tapering to a point and the second recess (13) forms an incision in the axis of the first recess of the retaining ring from its outer surface. Kappe nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens ein wulstartiger - (6) und ein kantenartiger Vorsprung (8) über dem Umfang vorgesehen sind.Cap according to claim 1, characterized in that at least one bulge - (6) and an edge-like projection (8) are provided over the circumference. Kappe nach Anspruch 8, dadurch gekennzeichnet, daß drei wulstartige Vorsprünge (6) gleichmäßig über dem Umfang verteilt angeordnet sind und wenigstens ein kantenartiger Vorsprung (8) zwischen zwei wulstartigen Vorsprüngen in der Nähe der Abreißstelle (12) vorgesehen ist.Cap according to claim 8, characterized in that three bead-like projections (6) are arranged distributed uniformly over the circumference and at least one edge-like projection (8) is provided between two bead-like projections in the vicinity of the tear-off point (12). Kappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß am unteren Rand des Sicherungsrings nutförmige, nach unten hin offene Ausnehmungen (10) angeordnet sind.Cap according to one of the preceding claims, characterized in that groove-shaped, downwardly open recesses (10) are arranged on the lower edge of the securing ring. Kappe nach Anspruch 10, dadurch gekennzeichnet, daß die nutförmigen Ausnehmungen (10) neben den wulstartigen Vorsprüngen (8) angeordnet sind.Cap according to claim 10, characterized in that the groove-shaped recesses (10) are arranged next to the bead-like projections (8). Kappe nach Anspruch 10, dadurch gekennzeichnet, daß eine im unteren Rand des Sicherungsrings (3) vorgesehene Ausnehmung (10) in Ausrichtung mit der Abreißstelle (12) angeordnet ist.Cap according to Claim 10, characterized in that a recess (10) provided in the lower edge of the securing ring (3) is arranged in alignment with the tear-off point (12). Kappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sollbruchstelle zwischen dem Sicherheitsring (3) und der Kappe (2) durch mit Abstand über den Umfang ausgebildete schmale Abreißstege (5) gebildet ist.Cap according to one of the preceding claims, characterized in that the predetermined breaking point between the safety ring (3) and the cap (2) is formed by narrow tear-off webs (5) formed at a distance over the circumference. Kappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß fensterartige Ausnehmungen (11) im Bereich des Sicherungsrings vorgesehen sind.Cap according to one of the preceding claims, characterized in that window-like recesses (11) are provided in the area of the securing ring. Kappe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die am Kappenmantel (2) angeformten Gewindegänge (4) abschnittsweise ausgebildet sind.Cap according to one of the preceding claims, characterized in that the threads (4) formed on the cap jacket (2) are formed in sections.
EP93105518A 1992-04-09 1993-04-02 Bottle cap with warranty ring Expired - Lifetime EP0564999B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4211992A DE4211992A1 (en) 1992-04-09 1992-04-09 Bottle cap with locking ring
DE4211992 1992-04-09

Publications (2)

Publication Number Publication Date
EP0564999A1 true EP0564999A1 (en) 1993-10-13
EP0564999B1 EP0564999B1 (en) 1995-07-26

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Application Number Title Priority Date Filing Date
EP93105518A Expired - Lifetime EP0564999B1 (en) 1992-04-09 1993-04-02 Bottle cap with warranty ring

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EP (1) EP0564999B1 (en)
AT (1) ATE125508T1 (en)
DE (2) DE4211992A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000172A1 (en) * 1994-06-24 1996-01-04 Crown Cork Ag Screw cap with warranty strip
WO2002070363A1 (en) * 2001-03-08 2002-09-12 Tetra Laval Holdings & Finance S.A. Closure device, neck compatible with said device and container comprising such a neck closed by said device
WO2021147338A1 (en) * 2020-01-21 2021-07-29 山东烟郓包装科技股份有限公司 Liquor bottle lid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU546191B2 (en) * 1983-12-09 1985-08-22 Rexam Closure Systems Inc. Tamper indicating package
EP0451102A1 (en) * 1990-04-04 1991-10-09 Crown Cork AG Plastic closure
EP0459941A1 (en) * 1990-04-27 1991-12-04 Crown Cork AG Threaded cap with extendible tamper-indication band indicating first unscrewing
GB2255553A (en) * 1991-05-08 1992-11-11 Ultimos Desarrollos Bottle cap with tamper evident ring seal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU546191B2 (en) * 1983-12-09 1985-08-22 Rexam Closure Systems Inc. Tamper indicating package
EP0451102A1 (en) * 1990-04-04 1991-10-09 Crown Cork AG Plastic closure
EP0459941A1 (en) * 1990-04-27 1991-12-04 Crown Cork AG Threaded cap with extendible tamper-indication band indicating first unscrewing
GB2255553A (en) * 1991-05-08 1992-11-11 Ultimos Desarrollos Bottle cap with tamper evident ring seal

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996000172A1 (en) * 1994-06-24 1996-01-04 Crown Cork Ag Screw cap with warranty strip
US5893474A (en) * 1994-06-24 1999-04-13 Crown Cork Ag Screw cap with anti-tamper strip
US6116451A (en) * 1994-06-24 2000-09-12 Crown Cork Ag Screw cap with anti-tamper strip
WO2002070363A1 (en) * 2001-03-08 2002-09-12 Tetra Laval Holdings & Finance S.A. Closure device, neck compatible with said device and container comprising such a neck closed by said device
FR2821829A1 (en) * 2001-03-08 2002-09-13 Tetra Laval Holding Et Finance CLOSURE DEVICE, COLLAR COMPATIBLE WITH SUCH DEVICE AND CONTAINER COMPRISING SUCH A MOUTHPIECE THROUGH SUCH A DEVICE
WO2021147338A1 (en) * 2020-01-21 2021-07-29 山东烟郓包装科技股份有限公司 Liquor bottle lid

Also Published As

Publication number Publication date
ATE125508T1 (en) 1995-08-15
EP0564999B1 (en) 1995-07-26
DE59300394D1 (en) 1995-08-31
DE4211992A1 (en) 1993-10-14

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