EP0781237B1 - Plastic screw closure cap for a bottle or similar vessel - Google Patents

Plastic screw closure cap for a bottle or similar vessel Download PDF

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Publication number
EP0781237B1
EP0781237B1 EP95922499A EP95922499A EP0781237B1 EP 0781237 B1 EP0781237 B1 EP 0781237B1 EP 95922499 A EP95922499 A EP 95922499A EP 95922499 A EP95922499 A EP 95922499A EP 0781237 B1 EP0781237 B1 EP 0781237B1
Authority
EP
European Patent Office
Prior art keywords
bottle neck
tongues
bottle
cap
screw cap
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
EP95922499A
Other languages
German (de)
French (fr)
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EP0781237A1 (en
Inventor
Hans-Werner Breuer
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.)
Safety Cap System AG
Original Assignee
Safety Cap System AG
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Filing date
Publication date
Application filed by Safety Cap System AG filed Critical Safety Cap System AG
Publication of EP0781237A1 publication Critical patent/EP0781237A1/en
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Publication of EP0781237B1 publication Critical patent/EP0781237B1/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
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges

Definitions

  • the invention relates to a screw cap in the preamble of claim 1 type for closing a bottle or the like.
  • DE 41 08 453 A1 is a screw cap of the relevant Kind known in which the inward facing Locking projections are hook-shaped, so that when screwing the screw cap onto the external thread for the first time the locking projections behind a bottle neck one arranged on the bottle neck for security purposes, Snap the circumferential outer bead.
  • the screw cap When unscrewing the Screw cap hold the hook-shaped locking projections Retaining ring behind the outer bead on the bottle neck, so that the thin webs between the circlip and tear off the cylindrical part of the screw cap and so the locking ring remains on the bottle neck. Thereby tamper-evident is given.
  • a disadvantage of this known screw cap is in that with very careful and slow screwing the screw cap and underneath the hook-shaped projections is possible, but this over to lift the outer bead on the bottle neck so that the webs between the snap ring and the cylindrical part of the Screw cap must not be destroyed. This makes it possible replace the contents of the bottle in whole or in part or contaminate and screw the screw cap back on, without this being visible. Although needed this manipulation of a certain skill, however ensuring the originality of the contents is limited.
  • DE 35 31 508 A1 is a screw cap similar to that known type in which instead of the circlip a guarantee margin is provided which extends over part of the The circumference of the bottle neck extends and by means of molded Bridges is connected to the edge of the cap. At the guarantee edge there is a locking projection on the inside. This locking projection slides over the bottle rim when screwing on the screw cap provided annular bead, the guarantee margin swings outward like a hinge around the webs. In the end position the locking projection lies behind the bead. When screwing on the locking projection remains behind the bead, so that the guarantee edge is pulled away from the screw cap.
  • a screw cap is in the preamble of claim 1 type known, in which the Circlip has inward projections that should reach behind an outer bead on the edge of the bottle.
  • locking projections can be done with a flat object, e.g. B. with a knife tip, so that it is possible is the screw cap with constant underriding at the same time open with a knife tip without the Break predetermined breaking points and thus the circlip with the Screw cap can be removed.
  • a flat object e.g. B. with a knife tip
  • the invention has for its object a screw cap of the type in question, in which manipulation excluded with greater certainty on the circlip is.
  • the basic idea of this teaching is to prevent that a thin knife or the like between the bottleneck and locking projections pushed and then several times is moved around the circumference of the bottle neck while at the same time the screw cap is carefully unscrewed, so that the locking projections on the bead Bottle edge to be lifted and finally over this can slide away.
  • the thin knife or tool in each case under a locking projection to push would take the time to to reach all locking projections several times, so large that in The result is a very good safeguard against this type of manipulation given is.
  • tongues are arranged in the circumferential direction towards each other and are directed obliquely inwards. This means that the Half of the tongues in one direction and the other Half bent in the other direction. A manipulation tool thus gets caught when the attempt of the Bypassing the bottle neck is made immediately behind one of the tongues so that further movement is not possible is.
  • the tongues prevent the Locking projections.
  • the tongues are expediently in the circumferential direction trained so long that at least they are screwed on Condition the locking projections on the bottle neck facing Reach behind side. So the tongues are always there securely on the bottle neck and therefore do not offer a gap, through which a manipulation tool in the circumferential direction of the Bottleneck could be guided to the locking tabs to be lifted repeatedly in succession.
  • the tongues are advantageously resilient on the bottle neck on. As a result, you tighten the locking ring radially outwards.
  • the retaining ring at least in the circumferential direction a predetermined breaking point. This tears when you open the Screw cap when the locking projections on the bead on the bottle neck be held back.
  • the predetermined breaking point Through the through the tongues Preload caused by the circlip after Tear open the predetermined breaking point so that between the Gaps that are easily visible, so that this guarantees a guarantee.
  • the basic idea of the invention to provide special tongues that are intended to prevent manipulation basically also applicable when the cap is not through a screw thread, but through a snap connection or the like is held.
  • Fig. 1 shows a screw cap 1 made of plastic according to an embodiment of the invention. It shows one Bottom 2 and a cylindrical screw 3 with a Internal thread 4 for screwing onto an external thread 5 a bottle neck 6, which is only partially shown. Between the bottom 2 and a front edge 7 of the bottle neck 6 there is a seal 8.
  • a lower edge 9 of the cylindrical part 3 is over Predetermined breaking points 10 connected to a retaining ring 11, the inside has locking projections 12, which in the illustrated Unscrew an outer bead 13 on the bottle neck 6 reach behind.
  • tongues 14 On the inside of the circlip 11 are also tongues 14 which are resilient on an outer wall 15 of the bottle neck 6 issue.
  • FIG. 2 shows a section II-II through FIG. 1.
  • the tongues 14 in the spaces between the locking projections 12 are located and in pairs adjacent to the locking projections 12 are arranged and facing each other.
  • the locking ring 11 predetermined breaking points 16 in the form of axially in the circumference of the retaining ring 11 arranged notches.
  • FIG. 3 shows an enlarged section from FIG. 1 in the area of the lower left part of the screw cap, and in such a way that the screw cap is not screwed on and so the bottle neck 6 is omitted.
  • Fig. 4 shows a view IV in Fig. 3 in the lower Area. It can be seen that the two in this Representation of visible tongues 14 outside of the Inner wall of the locking ring 11 towards each other in the Extend area of the locking projection 12.
  • Fig. 5 shows a section V-V through Fig. 3.
  • Fig. 5 shows a section V-V through Fig. 3.
  • FIG. 6 corresponds essentially to the representation according to Fig. 5, however, shows the situation when screwed Screw cap. It can be seen that the tongues 14 bent inwards and thus put under tension are, while they engage behind the locking projections 12.

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

Abstract

Described is a plastic screw cap (1) for a bottle or similar vessel, the cap having a cylindrical part (3) with an internal thread (4) designed to be screwed on to an external thread (5) on the neck (6) of the bottle. The cylindrical part of the cap is joined by thin rated break points (10) to a warranty ring (11) adjacent to the rim of this part. Located on the ring are inwards-facing tongue-shaped projections (12) designed to clip in behind a bulge (13) running round the outside of the bottle neck (6). Located on the inside of the warranty ring (11), next to the clip-in projections, are tongues (14) which face each other round the circumference and are inclined in at an angle towards the inside. When the cap is screwed on, these tongues (14) lie directly against the outside surface of the bottle neck, thus preventing a thin tool, e.g. a thin-bladed knife, from being pushed under the clip-in projections (12) and moved round the outside of the bottle neck in order to move the clip-in projections (12) slowly over the bulge running round the bottle neck, at the same time screwing the cap on further, without the rated break points breaking. When the tool begins to move round the outside of the bottle neck, it immediately becomes caught behind the first tongue (14). Since the tongues (14) lie at an angle against the bottle neck, some pointing in one direction and some in the other direction, tampering with the cap in this way is impossible in either direction round the bottle neck.

Description

Die Erfindung betrifft eine Schraubkappe der im Oberbegriff des Anspruchs 1 genannten Art zum Verschließen einer Flasche oder dergleichen.The invention relates to a screw cap in the preamble of claim 1 type for closing a bottle or the like.

Durch DE 41 08 453 A1 ist eine Schraubkappe der betreffenden Art bekannt, bei der die nach innen gerichteten Rastvorsprünge hakenförmig ausgebildet sind, so daß beim erstmaligen Aufschrauben der Schraubkappe auf das Außengewinde eines Flaschenhalses die Rastvorsprünge hinter einen zu Sicherungszwecken am Flaschenhals angeordneten, umlaufenden Außenwulst schnappen. Beim Abschrauben der Schraubkappe halten die hakenförmigen Rastvorsprünge den Sicherungsring hinter dem Außenwulst am Flaschenhals fest, so daß die dünnen Stege zwischen dem Sicherungsring und dem zylindrischen Teil der Schraubkappe abreißen und so der Sicherungsring auf dem Flaschenhals verbleibt. Dadurch ist eine Originalitätssicherung gegeben.DE 41 08 453 A1 is a screw cap of the relevant Kind known in which the inward facing Locking projections are hook-shaped, so that when screwing the screw cap onto the external thread for the first time the locking projections behind a bottle neck one arranged on the bottle neck for security purposes, Snap the circumferential outer bead. When unscrewing the Screw cap hold the hook-shaped locking projections Retaining ring behind the outer bead on the bottle neck, so that the thin webs between the circlip and tear off the cylindrical part of the screw cap and so the locking ring remains on the bottle neck. Thereby tamper-evident is given.

Ein Nachteil dieser bekannten Schraubkappe besteht darin, daß es bei sehr vorsichtigem und langsamem Aufschrauben der Schraubkappe und gleichzeitigem Unterfahren der hakenförmigen Vorsprünge möglich ist, diese doch über den Außenwulst am Flaschenhals zu heben, so daß die Stege zwischen dem Sicherungsring und dem zylindrischen Teil der Schraubkappe nicht zerstört werden. Dadurch ist es möglich, den Inhalt der Flasche ganz oder teilweise auszutauschen oder zu verunreinigen und die Schraubkappe wieder aufzuschrauben, ohne daß dies dann sichtbar ist. Zwar bedarf diese Manipulation einer gewissen Geschicklichkeit, jedoch ist die Sicherung der Originalität des Füllinhalts begrenzt.A disadvantage of this known screw cap is in that with very careful and slow screwing the screw cap and underneath the hook-shaped projections is possible, but this over to lift the outer bead on the bottle neck so that the webs between the snap ring and the cylindrical part of the Screw cap must not be destroyed. This makes it possible replace the contents of the bottle in whole or in part or contaminate and screw the screw cap back on, without this being visible. Although needed this manipulation of a certain skill, however ensuring the originality of the contents is limited.

Durch DE 35 31 508 A1 ist eine Schraubkappe ähnlich der betreffenden Art bekannt, bei der statt des Sicherungsringes ein Garantierand vorgesehen ist, der sich über einen Teil des Umfanges des Flaschenhalses erstreckt und mittels angeformter Stege mit dem Kappenrand verbunden ist. An dem Garantierand befindet sich innen ein Rastvorsprung. Dieser Rastvorsprung gleitet beim Aufschrauben der Schraubkappe über einen am Flaschenrand vorgesehenen Ringwulst, wobei der Garantierand scharnierartig um die Stege nach außen schwenkt. In der Endstellung liegt der Rastvorsprung hinter dem Wulst. Beim Aufschrauben bleibt der Rastvorsprung hinter dem Wulst hängen, so daß der Garantierand von der Schraubkappe weggezogen wird. Es besteht jedoch der gleiche Nachteil wie bei dem Schraubverschluß der betreffenden Art, daß der Rastvorsprung am Garantierand bei gleichzeitigem vorsichtigen Abschrauben und Unterfahren über den Wulst am Flaschenrand hinweggehoben werden kann, so daß keiner der den Garantierand mit der Schraubkappe verbindenden Stege zerrissen wird. Die Schraubkappe kann daher wie beim erstmaligen Aufschrauben wieder verwendet werden, so daß eine Garantiesicherung nicht gegeben ist.DE 35 31 508 A1 is a screw cap similar to that known type in which instead of the circlip a guarantee margin is provided which extends over part of the The circumference of the bottle neck extends and by means of molded Bridges is connected to the edge of the cap. At the guarantee edge there is a locking projection on the inside. This locking projection slides over the bottle rim when screwing on the screw cap provided annular bead, the guarantee margin swings outward like a hinge around the webs. In the end position the locking projection lies behind the bead. When screwing on the locking projection remains behind the bead, so that the guarantee edge is pulled away from the screw cap. However, there is the same disadvantage as the screw cap of the type concerned that the locking projection on the guarantee edge with careful unscrewing and Underneath can be lifted over the bead on the edge of the bottle can, so that none of the guarantee edge with the screw cap connecting webs is torn. The screw cap can therefore be used again as when screwing on for the first time be, so that a guarantee is not given.

Durch WO-A 9402 371 ist eine Schraubkappe der im Oberbegriff des Anspruchs 1 genannten Art bekannt, bei dem der Sicherungsring nach innen gerichtete Vorsprünge aufweist, die einen Außenwulst am Flaschenrand hintergreifen sollen. Diese Rastvorsprünge können jedoch mit einem flachen Gegenstand, z. B. mit einer Messerspitze, unterfahren werden, so daß es möglich ist, die Schraubkappe bei gleichzeitigem ständigen Unterfahren mit einer Messerspitze zu öffnen, ohne daß die Sollbruchstellen reißen und somit der Sicherungsring mit der Schraubkappe entfernt werden kann. Durch Manipulation ist also ein unsichtbares öffnen und Wiederverschließen der Flasche möglich, so daß eine sichere Originalitätssicherung nicht gegeben ist.Through WO-A 9402 371 a screw cap is in the preamble of claim 1 type known, in which the Circlip has inward projections that should reach behind an outer bead on the edge of the bottle. This However, locking projections can be done with a flat object, e.g. B. with a knife tip, so that it is possible is the screw cap with constant underriding at the same time open with a knife tip without the Break predetermined breaking points and thus the circlip with the Screw cap can be removed. Through manipulation that is, an invisible opening and resealing of the bottle possible, so that a secure tamper evidence is not given.

Der Erfindung liegt die Aufgabe zugrunde, eine Schraubkappe der betreffenden Art zu schaffen, bei der eine Manipulation am Sicherungsring mit größerer Sicherheit ausgeschlossen ist.The invention has for its object a screw cap of the type in question, in which manipulation excluded with greater certainty on the circlip is.

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

Der Grundgedanke dieser Lehre besteht darin zu verhindern, daß ein dünnes Messer oder dergleichen zwischen Flaschenhals und Rastvorsprünge geschoben und dann mehrmals um den Umfang des Flaschenhalses bewegt wird, während gleichzeitig die Schraubkappe vorsichtig aufgedreht wird, so daß dadurch die Rastvorsprünge langsam auf dem Wulst am Flaschenrand hochgehoben werden und schließlich über diesen hinweggleiten können. Zwar ist es weiterhin möglich, das dünne Messer oder Werkzeug jeweils unter einen Rastvorsprung zu schieben, jedoch wäre der Zeitaufwand, um alle Rastvorsprünge mehrmals zu erreichen, so groß, daß im Ergebnis eine sehr gute Sicherung gegen diese Art von Manipulation gegeben ist.The basic idea of this teaching is to prevent that a thin knife or the like between the bottleneck and locking projections pushed and then several times is moved around the circumference of the bottle neck while at the same time the screw cap is carefully unscrewed, so that the locking projections on the bead Bottle edge to be lifted and finally over this can slide away. Although it is still possible the thin knife or tool in each case under a locking projection to push, however, would take the time to to reach all locking projections several times, so large that in The result is a very good safeguard against this type of manipulation given is.

Praktisch wird die Bewegung des Manipulationswerkzeuges um den Umfang des Flaschenhalses herum erfindungsgemäß dadurch verhindert, daß an der Innenseite des Sicherungsringes jeweils benachbart zu den Rastvorsprüngen Zungen angeordnet sind, die in Umfangsrichtung aufeinander zu und schräg nach innen gerichtet sind. Dies bedeutet, daß die Hälfte der Zungen in die eine Richtung und die andere Hälfte in die andere Richtung gebogen werden. Ein Manipulationswerkzeug verfängt sich somit, wenn der Versuch des Umfahrens des Flaschenhalses gemacht wird, sofort hinter einer der Zungen, so daß eine Weiterbewegung nicht möglich ist. Außerdem verhindern die Zungen ein Herunterbiegen der Rastvorsprünge.The movement of the manipulation tool becomes practical around the circumference of the bottle neck according to the invention this prevents the inside of the retaining ring each adjacent to the locking projections tongues are arranged in the circumferential direction towards each other and are directed obliquely inwards. This means that the Half of the tongues in one direction and the other Half bent in the other direction. A manipulation tool thus gets caught when the attempt of the Bypassing the bottle neck is made immediately behind one of the tongues so that further movement is not possible is. In addition, the tongues prevent the Locking projections.

Zweckmäßigerweise sind die Zungen in Umfangsrichtung so lang ausgebildet, daß sie wenigstens im aufgeschraubten Zustand die Rastvorsprünge auf der dem Flaschenhals zugewandten Seite hintergreifen. Die Zungen liegen also immer sicher am Flaschenhals an und bieten damit keinen Spalt, durch die ein Manipulationswerkzeug in Umfangsrichtung des Flaschenhalses geführt werden könnte, um die Rastvorsprünge nacheinander immer wiederkehrend anzuheben.The tongues are expediently in the circumferential direction trained so long that at least they are screwed on Condition the locking projections on the bottle neck facing Reach behind side. So the tongues are always there securely on the bottle neck and therefore do not offer a gap, through which a manipulation tool in the circumferential direction of the Bottleneck could be guided to the locking tabs to be lifted repeatedly in succession.

Eine andere zweckmäßige Weiterbildung besteht darin, daß die in Aufschraubrichtung vorn liegenden Kanten der Zungen so angeordnet sind, daß sich beim Aufschrauben zuerst die Rastvorsprünge nach innen bewegen und dann die Zungen. Auf diese Weise ist sichergestellt, daß die vorteilhafte Anlage der Zungen unmittelbar am Flaschenhals beim Aufschrauben sicher herbeigeführt wird.Another useful training is that the front edges in the screwing direction of the Tongues are arranged so that when screwing on first move the locking tabs inwards and then the Tongues. This ensures that the advantageous The tongues rest directly on the bottle neck is brought about safely when screwing on.

Die Zungen liegen vorteilhafterweise federnd am Flaschenhals an. Sie spannen dadurch den Sicherungsring radial nach außen vor. Gemäß einer Weiterbildung der Erfindung weist der Sicherungsring in Umfangsrichtung wenigstens eine Sollbruchstelle auf. Diese reißt beim Öffnen der Schraubkappe, wenn die Rastvorsprünge an dem Wulst am Flaschenhals zurückgehalten werden. Durch die durch die Zungen bewirkte Vorspannung wird der Sicherungsring nach dem Aufreißen der Sollbruchstelle gedehnt, so daß zwischen den Sollbruchstellen Spalte klaffen, die leicht sichtbar sind, so daß dadurch eine Garantiesicherung gegeben ist.The tongues are advantageously resilient on the bottle neck on. As a result, you tighten the locking ring radially outwards. According to a development of the invention the retaining ring at least in the circumferential direction a predetermined breaking point. This tears when you open the Screw cap when the locking projections on the bead on the bottle neck be held back. Through the through the tongues Preload caused by the circlip after Tear open the predetermined breaking point so that between the Gaps that are easily visible, so that this guarantees a guarantee.

Der Grundgedanke der Erfindung, spezielle Zungen vorzusehen, die eine Manipulation verhindern sollen, ist grundsätzlich auch dann anwendbar, wenn die Kappe nicht durch ein Schraubgewinde, sondern durch eine Schnappverbindung oder dergleichen gehalten ist.The basic idea of the invention to provide special tongues that are intended to prevent manipulation basically also applicable when the cap is not through a screw thread, but through a snap connection or the like is held.

Anhand der Zeichnung soll die Erfindung näher erläutert werden.

Fig. 1
zeigt einen Axialschnitt durch ein Ausführungsbeispiel einer Schraubkappe gemäß der Erfindung, zusammen mit einem zugehörigen Hals einer Flasche,
Fig. 2
ist ein Schnitt II-II durch Fig. 1,
Fig. 3
zeigt vergrößert den unteren linken Teil der Schraubkappe gemäß Fig. 1 im nicht aufgeschraubten Zustand,
Fig. 4
ist eine Ansicht IV in Fig. 3,
Fig. 5
ist ein Schnitt V-V durch Fig. 3,
Fig. 6
entspricht Fig. 5, zeigt jedoch die Schraubkappe in aufgeschraubtem Zustand.
The invention will be explained in more detail with reference to the drawing.
Fig. 1
shows an axial section through an embodiment of a screw cap according to the invention, together with an associated neck of a bottle,
Fig. 2
is a section II-II through Fig. 1,
Fig. 3
shows enlarged the lower left part of the screw cap of FIG. 1 in the unscrewed state,
Fig. 4
3 is a view IV in FIG.
Fig. 5
is a section VV through Fig. 3,
Fig. 6
corresponds to FIG. 5, but shows the screw cap in the screwed-on state.

Fig. 1 zeigt eine Schraubkappe 1 aus Kunststoff gemäß einem Ausführungsbeispiel der Erfindung. Sie weist einen Boden 2 und ein zylindrisches Schraubteil 3 auf mit einem Innengewinde 4 zum Aufschrauben auf ein Außengewinde 5 eines Flaschenhalses 6, der nur teilweise dargestellt ist. Zwischen dem Boden 2 und einer Stirnkante 7 des Flaschenhalses 6 befindet sich eine Dichtung 8.Fig. 1 shows a screw cap 1 made of plastic according to an embodiment of the invention. It shows one Bottom 2 and a cylindrical screw 3 with a Internal thread 4 for screwing onto an external thread 5 a bottle neck 6, which is only partially shown. Between the bottom 2 and a front edge 7 of the bottle neck 6 there is a seal 8.

Ein unterer Rand 9 des zylindrischen Teils 3 ist über Sollbruchstellen 10 mit einem Sicherungsring 11 verbunden, der innen Rastvorsprünge 12 aufweist, die in dem dargestellten Aufschraubzustand einen Außenwulst 13 am Flaschenhals 6 hintergreifen. An der Innenseite des Sicherungsringes 11 befinden sich außerdem Zungen 14, die federnd an einer äußeren Wandung 15 des Flaschenhalses 6 anliegen.A lower edge 9 of the cylindrical part 3 is over Predetermined breaking points 10 connected to a retaining ring 11, the inside has locking projections 12, which in the illustrated Unscrew an outer bead 13 on the bottle neck 6 reach behind. On the inside of the circlip 11 are also tongues 14 which are resilient on an outer wall 15 of the bottle neck 6 issue.

In Fig. 2 ist ein Schnitt II-II durch Fig. 1 gezeigt. In dieser Darstellung ist erkennbar, daß sich die Zungen 14 in den Zwischenräumen zwischen den Rastvorsprüngen 12 befinden und jeweils paarweise benachbart zu den Rastvorsprüngen 12 angeordnet und aufeinander zu gerichtet sind. Außerdem ist erkennbar, daß der Sicherungsring 11 Sollbruchstellen 16 in Form von axial im Umfang des Sicherungsringes 11 angeordneten Kerben aufweist.FIG. 2 shows a section II-II through FIG. 1. In this representation it can be seen that the tongues 14 in the spaces between the locking projections 12 are located and in pairs adjacent to the locking projections 12 are arranged and facing each other. It can also be seen that the locking ring 11 predetermined breaking points 16 in the form of axially in the circumference of the retaining ring 11 arranged notches.

Fig. 3 zeigt einen vergrößerten Ausschnitt aus Fig. 1 im Bereich des unteren linken Teils der Schraubkappe, und zwar in der Weise, daß die Schraubkappe nicht aufgeschraubt und so der Flaschenhals 6 weggelassen ist. Dadurch ist erkennbar, daß die Zungen 14 im nicht aufgeschraubten Zustand der Schraubkappe 1 so weit nach innen ragen, daß sie über den im aufgeschraubten Zustand von der Außenwandung 15 des Flaschenhalses 6 eingenommenen radialen Bereich nach innen vorstehen.FIG. 3 shows an enlarged section from FIG. 1 in the area of the lower left part of the screw cap, and in such a way that the screw cap is not screwed on and so the bottle neck 6 is omitted. Thereby it can be seen that the tongues 14 in the unscrewed Condition of screw cap 1 so far inwards protrude that they are screwed on from the Outer wall 15 of the bottle neck 6 occupied radial Protect the area inwards.

Fig. 4 zeigt eine Ansicht IV in Fig. 3 in deren unterem Bereich. Es ist zu erkennen, daß die beiden in dieser Darstellung sichtbaren Zungen 14 sich außerhalb von der Innenwandung des Sicherungsringes 11 aufeinanderzu in den Bereich des Rastvorsprunges 12 erstrecken.Fig. 4 shows a view IV in Fig. 3 in the lower Area. It can be seen that the two in this Representation of visible tongues 14 outside of the Inner wall of the locking ring 11 towards each other in the Extend area of the locking projection 12.

Fig. 5 zeigt einen Schnitt V-V durch Fig. 3. In dieser Darstellung wird besonders deutlich, daß im entspannten Zustand die Zungen 14 über die Rastvorsprünge 12 hinaus nach innen ragen und daß die durch eine Kerbe gebildete Sollbruchstelle 16 zwischen den Zungen 14 liegt.Fig. 5 shows a section V-V through Fig. 3. In this Presentation is particularly clear that in the relaxed Condition the tongues 14 beyond the locking projections 12 protrude inwards and that the one formed by a notch Breakage point 16 lies between the tongues 14.

Fig. 6 entspricht im wesentlichen der Darstellung gemäß Fig. 5, zeigt jedoch die Verhältnisse bei aufgeschraubter Schraubkappe. Es ist zu erkennen, daß die Zungen 14 nach innen gebogen und damit unter Spannung gesetzt sind, wobei sie gleichzeitig die Rastvorsprünge 12 hintergreifen.6 corresponds essentially to the representation according to Fig. 5, however, shows the situation when screwed Screw cap. It can be seen that the tongues 14 bent inwards and thus put under tension are, while they engage behind the locking projections 12.

Wird die in der Zeichnung dargestellte Schraubkappe auf eine Flasche aufgeschraubt, so stoßen zunächst die Rastvorsprünge 12 gegen den Außenwulst 13 des Flaschenhalses 6, so daß sie nach außen weggebogen werden. Dies geschieht nachfolgend auch bei weiterem Aufschrauben mit den Zungen 14, deren Enden sich dabei aufeinanderzu bewegen. Im weiteren Verlauf des Aufschraubens kommen die Zungen 14 von dem Außenwulst 13 frei, so daß sie sich aufgrund ihrer Längenausdehnung und Ausrichtung mit Federkraft gegen die Außenwandung 15 des Flaschenhalses 6 anlegen. Zum Schluß kommen dann die Rastvorsprünge 12 von dem Außenwulst 13 frei, so daß sie hinter diesen schnappen.Will the screw cap shown in the drawing screwed onto a bottle, so first encounter the Locking projections 12 against the outer bead 13 of the bottle neck 6 so that they are bent outwards. this happens subsequently also with further screwing on with the Tongues 14, the ends of which move towards each other. The tongues 14 come in the further course of the screwing on free of the outer bead 13 so that they are due to their Linear expansion and alignment with spring force against the Create the outer wall 15 of the bottle neck 6. Finally the locking projections 12 then come from the outer bead 13 free so that they snap behind them.

Wird nun beim Abschrauben versucht, an den Rastvorsprüngen 12 zu manipulieren, indem ein dünnes Messer oder dergleichen am Flaschenhals entlang unter den Sicherungsring 11 geschoben und versucht wird, es um den Flaschenhals herumzuführen, um die Rastvorsprünge 12 über den Außenwulst 13 zu bringen, so verfängt sich das Messer oder dergleichen je nach Bewegungsrichtung hinter den einen oder anderen Zungen 14. Dadurch wird eine derartige Manipulation behindert oder sogar ganz verhindert. Außerdem reißen bei einer solchen Manipulation die Sollbruchstellen 15, so daß der Sicherungsring 11 in Umfangsrichtung getrennt wird. Aufgrund der Federspannung der Laschen 14 werden dabei die den aufgerissenen Sollbruchstellen 16 benachbarten Teile des Sicherungsringes 11 nach außen gedrückt, so daß im Bereich der aufgerissenen Sollbruchstellen 16 Spalte klaffen, die sich aufgrund der Federspannung der Laschen 14 nicht schließen lassen. Dies gilt auch beim Öffnen der Schraubkappe ohne Manipulation, weil dabei der Sicherungsring 11 an den Sollbruchstellen 16 aufgerissen wird. Im aufgeschraubten Zustand sind diese Risse zwar nicht zu sehen, wird jedoch die Schraubkappe erneut aufgeschraubt, so stützen sich die Laschen 14 wieder federnd an der Außenwandung 15 des Flaschenhalses 6 ab, drücken dabei den Sicherungsring 11 nach außen und erzeugen dadurch die Spalte im Bereich der Sollbruchstellen 16. Diese Spalte sind dann sichtbar und dienen als Garantiemerkmal.If you now try to unscrew the catches 12 manipulate by using a thin knife or the like along the bottle neck under the locking ring 11 pushed and tried to put it around the bottle neck lead around to the locking projections 12 over the outer bead 13 bring, so the knife or the like depending on the direction of movement behind the one or other tongues 14. This will result in such manipulation hindered or even completely prevented. Furthermore With such manipulation, the predetermined breaking points tear 15, so that the locking ring 11 is separated in the circumferential direction becomes. Due to the spring tension of the tabs 14 the predetermined breaking points 16 adjacent parts of the locking ring 11 pressed outwards, so that in the area of the predetermined breaking points 16 gaps gap due to the spring tension the tabs 14 do not let close. This also applies to Opening the screw cap without manipulation, because doing so Circlip 11 torn open at predetermined breaking points 16 becomes. When screwed on, these cracks are indeed not visible, but the screw cap is screwed on again, so the tabs 14 are resiliently supported again the outer wall 15 of the bottle neck 6, press it the locking ring 11 to the outside and thereby generate the Column in the area of the predetermined breaking points 16. This column are then visible and serve as a guarantee feature.

Claims (4)

  1. A screw cap made from plastics for closing a bottle or the like, with a cylindrical screw part (3) which has an internal thread (4) for screwing onto an external thread (5) of the bottle neck (6), and which is connected via thin predetermined breaking points (10) to a security ring (11) adjacent to the free edge (9) of the screw part (3), on which inwardly directed tongue-like catch projections (12) are located to engage behind an outer collar (13) on a bottle neck (6),
    characterised in that disposed on the inside of the security ring (11) in each case adjacent to the catch projections (12) are tongues (14), which are directed towards one another in the circumferential direction and obliquely inwardly.
  2. A screw cap according to Claim 1,
    characterised in that the tongues (14) are constructed with such a length in the circumferential direction that they engage behind the catch projections (12) on the side faced towards the bottle neck (6) at least in the screwed-on state.
  3. A screw cap according to Claim 1,
    characterised in that edges of the tongues (14) lying at the front in the screwing-on direction are disposed so that when screwed on the catch projections (12) firstly move inwardly and then the tongues (14).
  4. A screw cap according to Claim 1,
    characterised in that the security ring (11) comprises at
    least one predetermined breaking point (16) in the circumferential direction.
EP95922499A 1994-09-17 1995-06-06 Plastic screw closure cap for a bottle or similar vessel Expired - Lifetime EP0781237B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4433238 1994-09-17
DE4433238A DE4433238C1 (en) 1994-09-17 1994-09-17 Plastic screw cap for closing a bottle or the like
PCT/EP1995/002129 WO1996008420A1 (en) 1994-09-17 1995-06-06 Plastic screw closure cap for a bottle or similar vessel

Publications (2)

Publication Number Publication Date
EP0781237A1 EP0781237A1 (en) 1997-07-02
EP0781237B1 true EP0781237B1 (en) 1998-12-09

Family

ID=6528520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95922499A Expired - Lifetime EP0781237B1 (en) 1994-09-17 1995-06-06 Plastic screw closure cap for a bottle or similar vessel

Country Status (8)

Country Link
EP (1) EP0781237B1 (en)
AT (1) ATE174292T1 (en)
AU (1) AU2737195A (en)
DE (2) DE4433238C1 (en)
DK (1) DK0781237T3 (en)
ES (1) ES2126903T3 (en)
GR (1) GR3029543T3 (en)
WO (1) WO1996008420A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU698251B2 (en) * 1994-08-09 1998-10-29 Sterling Chemicals International, Inc. Friction materials containing blends of organic fibrous and particulate components
EP1835691A1 (en) 2006-03-13 2007-09-19 Hewlett-Packard Development Company, L.P. Communication System and Method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3531508A1 (en) * 1985-09-04 1987-03-12 Saier E Kunststoffwerk Gmbh Screw closure cap, in particular made of plastic, for bottles, beakers or the like
US4749094A (en) * 1987-01-02 1988-06-07 Owens-Illinois Closure Inc. Molded plastic tampering-indicating closure and apparatus for manufacture thereof
DE4108453A1 (en) * 1990-04-07 1991-10-10 Deussen Stella Kg Screw cap for bottle - has ring attached to lower edge by narrow necks which are broken when cap is unscrewed
GB9018854D0 (en) * 1990-08-29 1990-10-10 Montgomery Daniel & Son Ltd Tamper-evident closure cap
JP3209538B2 (en) * 1991-04-08 2001-09-17 日本クラウンコルク株式会社 Synthetic resin cap with pill fur proof characteristics
EG21314A (en) * 1992-07-16 2000-10-31 Driutt Rodney Malcolm Tamper evident closure

Also Published As

Publication number Publication date
DE59504506D1 (en) 1999-01-21
WO1996008420A1 (en) 1996-03-21
DE4433238C1 (en) 1996-01-18
GR3029543T3 (en) 1999-06-30
DK0781237T3 (en) 1999-08-16
ATE174292T1 (en) 1998-12-15
AU2737195A (en) 1996-03-29
EP0781237A1 (en) 1997-07-02
ES2126903T3 (en) 1999-04-01

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