WO1996008420A1 - 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
WO1996008420A1
WO1996008420A1 PCT/EP1995/002129 EP9502129W WO9608420A1 WO 1996008420 A1 WO1996008420 A1 WO 1996008420A1 EP 9502129 W EP9502129 W EP 9502129W WO 9608420 A1 WO9608420 A1 WO 9608420A1
Authority
WO
WIPO (PCT)
Prior art keywords
bottle neck
tongues
bottle
cap
screw cap
Prior art date
Application number
PCT/EP1995/002129
Other languages
German (de)
French (fr)
Inventor
Hans-Werner Breuer
Original Assignee
Safety Cap System Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Safety Cap System Ag filed Critical Safety Cap System Ag
Priority to DE59504506T priority Critical patent/DE59504506D1/en
Priority to AU27371/95A priority patent/AU2737195A/en
Priority to DK95922499T priority patent/DK0781237T3/en
Priority to EP95922499A priority patent/EP0781237B1/en
Publication of WO1996008420A1 publication Critical patent/WO1996008420A1/en
Priority to GR990400638T priority patent/GR3029543T3/en

Links

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 of the type mentioned in the preamble of claim 1 for closing a bottle or the like.
  • a disadvantage of this known screw cap is that, with very careful and slow screwing on of the screw cap and at the same time moving under the hook-shaped projections, it is possible to lift them over the outer bead on the bottle neck, so that the webs between the retaining ring and the cylindrical part the screw cap are not destroyed. This makes it possible lent to replace or contaminate the contents of the bottle in whole or in part and to screw the screw cap back on without this being visible. Although this manipulation requires a certain skill, the securing of the originality of the filling content is limited.
  • the screw cap can therefore be reused as when screwing it on for the first time, so that there is no guarantee.
  • the invention has for its object to provide a screw cap of the type in question, in which tampering with the circlip is excluded with greater security.
  • the object on which the invention is based is achieved by the teaching specified in the characterizing part of claim 1.
  • the basic idea of this teaching is to prevent a thin knife or the like from being pushed between the bottle neck and locking projections and then being moved several times around the circumference of the bottle neck, while at the same time the screw cap is carefully unscrewed, so that the locking projections are slowly opened the bead can be lifted up at the edge of the bottle and finally slide over it.
  • the movement of the manipulation tool around the circumference of the bottle neck is prevented by the fact that tongues are arranged on the inside of the retaining ring adjacent to the latching projections, said tongues being directed towards one another and obliquely inwards in the circumferential direction. This means that half of the tongues go in one direction and the other
  • a manipulation tool thus gets caught behind one of the tongues when an attempt is made to move around the bottle neck, so that further movement is not possible.
  • the tongues prevent the locking projections from bending down.
  • the tongues are expediently designed so long in the circumferential direction that at least in the screwed-on state they engage behind the locking projections on the side facing the bottle neck.
  • the tongues therefore always rest securely on the bottle neck and therefore do not offer a gap through which a manipulation tool could be guided in the circumferential direction of the bottle neck in order to repeatedly raise the locking projections one after the other.
  • Another useful training is that the edges of the tongues lying at the front in the screwing-on direction are arranged in such a way that when the screws are screwed on, the latching projections first move inwards and then the tongues. In this way it is ensured that the advantageous contact of the tongues is brought about securely directly on the bottle neck when screwing on.
  • the tongues are advantageously resilient on the bottle neck. As a result, they preload the locking ring radially outwards.
  • the securing ring has at least one predetermined breaking point in the circumferential direction. This tears when the screw cap is opened, when the locking projections on the bead on the bottle neck are retained. As a result of the pretension caused by the tongues, the securing ring is stretched after the predetermined breaking point has been torn open, so that there are gaps between the predetermined breaking points that are easily visible, so that a guarantee is guaranteed.
  • Fig. 1 shows an axial section through an exemplary 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 the lower left part of the enlarged
  • FIG. ⁇ is a view IV in FIG. 3
  • FIG. 5 is a section VV through FIG. 3
  • FIG. 6 corresponds to FIG. 5, but shows the screw cap when screwed on.
  • Fig. 1 shows a screw cap 1 made of plastic according to an embodiment of the invention. It has a base 2 and a cylindrical screw part 3 with an internal thread A for screwing onto an external thread 5 of a bottle neck 6, which is only partially shown.
  • a seal 8 is located between the base 2 and an end edge 7 of the bottle neck 6.
  • a lower edge 9 of the cylindrical part 3 is connected via predetermined breaking points 10 to a securing ring 11 which has locking projections 12 on the inside which, in the screwed-on state shown, engage behind an outer bead 13 on the bottle neck 6.
  • a securing ring 11 On the inside of the securing ring 11 there are also tongues 1A which resiliently abut an outer wall 15 of the bottle neck 6.
  • FIG. 2 shows a section II-II through FIG. 1. It can be seen in this illustration that the tongues 1A are located in the spaces between the locking projections 12 and are arranged in pairs adjacent to the locking projections 12 and are directed towards one another.
  • the securing ring 11 has predetermined breaking points 16 in the form of notches arranged axially in the circumference of the securing ring 11.
  • FIG. 3 shows an enlarged detail from FIG. 1 in the area of the lower left part of the screw cap, in such a way that the screw cap is not screwed on and the bottle neck 6 is thus omitted. This makes it clear that, when the screw cap 1 is not screwed on, the tongues 1A protrude so far inward that they protrude inward beyond the radial area occupied by the outer wall 15 of the bottle neck 6 when screwed on.
  • A shows a view IV in FIG. 3 in its lower region. It can be seen that the two in this Representation of visible tongues 1A extend outside of the inner wall of the locking ring 11 towards each other in the area of the locking projection 12.
  • Fig. 5 shows a section V-V through Fig. 3.
  • the tongues 1A protrude inward beyond the locking projections 12 in the relaxed state and that the predetermined breaking point 16 formed by a notch lies between the tongues 1A.
  • FIG. 6 essentially corresponds to the representation according to FIG. 5, but shows the conditions when the screw cap is screwed on. It can be seen that the tongues 1A are bent inwards and are thus under tension, while at the same time engaging behind the locking projections 12. If the screw cap shown in the drawing is screwed onto a bottle, the locking projections 12 first abut the outer bead 13 of the bottle neck 6, so that they are bent outwards. In the following, this also occurs when the tongues 1A are further screwed on, the ends of which move towards one another. In the further course of the screwing on, the tongues 1A come free from the outer bead 13, so that they rest against the outer wall 15 of the bottle neck 6 due to their length and alignment with spring force. Finally, the locking projections 12 come free from the outer bead 13 so that they snap behind them.

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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

Schraubkappe aus Kunststoff zum Verschließen einer Flasche oder dergleichen Plastic screw cap for closing a bottle or the like
Die Erfindung betrifft eine Schraubkappe der im Ober¬ begriff des Anspruchs 1 genannten Art zum Verschließen einer Flasche oder dergleichen.The invention relates to a screw cap of the type mentioned in the preamble of claim 1 for closing a bottle or the like.
Durch DE AI 08 453 AI ist eine Schraubkappe der be- treffenden Art bekannt, bei der die nach innen gerichteten Rastvorsprünge hakenförmig ausgebildet sind, so daß beim erstmaligen Aufschrauben der Schraubkappe auf das Außen¬ gewinde 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.From DE AI 08 453 AI a screw cap of the type in question is known, in which the inward locking projections are hook-shaped, so that when the screw cap is first screwed onto the external thread of a bottle neck, the locking projections are arranged behind one for securing purposes on the bottle neck , snap the outer bead. When unscrewing the screw cap, the hook-shaped locking projections hold the retaining ring behind the outer bead on the bottle neck, so that the thin webs between the retaining ring and the cylindrical part of the screw cap tear off and the retaining ring remains on the bottle neck. This ensures tamper evidence.
Ein Nachteil dieser bekannten Schraubkappe besteht darin, daß es bei sehr vorsichtigem und langsamem Auf¬ schrauben 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 mög- lieh, den Inhalt der Flasche ganz oder teilweise auszutau¬ schen oder zu verunreinigen und die Schraubkappe wieder aufzuschrauben, ohne daß dies dann sichtbar ist. Zwar be¬ darf diese Manipulation einer gewissen Geschicklichkeit, jedoch ist die Sicherung der Originalität des Füllinhalts begrenzt.A disadvantage of this known screw cap is that, with very careful and slow screwing on of the screw cap and at the same time moving under the hook-shaped projections, it is possible to lift them over the outer bead on the bottle neck, so that the webs between the retaining ring and the cylindrical part the screw cap are not destroyed. This makes it possible lent to replace or contaminate the contents of the bottle in whole or in part and to screw the screw cap back on without this being visible. Although this manipulation requires a certain skill, the securing of the originality of the filling content is limited.
Durch DE 35 31 508 AI ist eine Schraubkappe ähnlich der betreffenden Art bekannt, bei der statt des Siche¬ rungsringes 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 Rastvor¬ sprung. Dieser Rastvorsprung gleitet beim Aufschrauben der Schraubkappe über einen am Flaschenrand vorgesehenen Ring- wulst, wobei der Garantierand scharnierartig um die Stege nach außen schwenkt. In der Endstellung liegt der Rastvor¬ sprung hinter dem Wulst. Beim Aufschrauben bleibt der Rastvorsprung hinter dem Wulst hängen, so daß der Garan¬ tierand von der Schraubkappe weggezogen wird. Es besteht jedoch der gleiche Nachteil wie bei dem Schraubverschluß der betreffenden Art, daß der Rastvorsprung am Garantie¬ rand bei gleichzeitigem vorsichtigen Abschrauben und Un¬ terfahren über den Wulst am Flaschenrand hinweggehoben werden kann, so daß keiner der den Garantierand mit der Schraubkappe verbindenden Stege zerrissen wird. DieFrom DE 35 31 508 AI a screw cap similar to the type in question is known, in which instead of the securing ring a guarantee edge is provided which extends over part of the circumference of the bottle neck and is connected to the edge of the cap by means of molded-on webs. On the inside of the guarantee there is a locking projection. When the screw cap is screwed on, this locking projection slides over an annular bead provided on the edge of the bottle, the guarantee edge pivoting 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 with the screw cap of the type in question that the latching projection on the edge of the guarantee can be lifted away while at the same time carefully unscrewing and driving over the bead on the edge of the bottle, so that none of the webs connecting the guarantee edge to the screw cap is torn becomes. The
Schraubkappe kann daher wie beim erstmaligen Aufschrauben wieder verwendet werden, so daß eine Garantiesicherung nicht gegeben ist.The screw cap can therefore be reused as when screwing it on for the first time, so that there is no guarantee.
Der Erfindung liegt die Aufgabe zugrunde, eine Schraubkappe der betreffenden Art zu schaffen, bei der eine Manipulation am Sicherungsring mit größerer Sicher¬ heit ausgeschlossen ist.The invention has for its object to provide a screw cap of the type in question, in which tampering with the circlip is excluded with greater security.
Die der Erfindung zugrundeliegende Aufgabe wird durch die im Kennzeichen des Anspruchs 1 angegebene Lehre ge- löst. Der Grundgedanke dieser Lehre besteht darin zu verhin¬ dern, daß ein dünnes Messer oder dergleichen zwischen Fla¬ schenhals 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 die¬ sen hinweggleiten können. Zwar ist es weiterhin möglich, das dünne Messer oder Werkzeug jeweils unter einen Rast- vorsprung 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 Ma¬ nipulation gegeben ist.The object on which the invention is based is achieved by the teaching specified in the characterizing part of claim 1. The basic idea of this teaching is to prevent a thin knife or the like from being pushed between the bottle neck and locking projections and then being moved several times around the circumference of the bottle neck, while at the same time the screw cap is carefully unscrewed, so that the locking projections are slowly opened the bead can be lifted up at the edge of the bottle and finally slide over it. Although it is still possible to push the thin knife or tool in each case under a locking projection, the time required to reach all the locking projections several times would be so great that the result would be very good protection against this type of manipulation is.
Praktisch wird die Bewegung des Manipulationswerkzeu- ges um den Umfang des Flaschenhalses herum erfindungsgemäß dadurch verhindert, daß an der Innenseite des Sicherungs¬ ringes 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 andereIn practice, according to the invention, the movement of the manipulation tool around the circumference of the bottle neck is prevented by the fact that tongues are arranged on the inside of the retaining ring adjacent to the latching projections, said tongues being directed towards one another and obliquely inwards in the circumferential direction. This means that half of the tongues go in one direction and the other
Hälfte in die andere Richtung gebogen werden. Ein Manipu¬ lationswerkzeug 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.Half bent in the other direction. A manipulation tool thus gets caught behind one of the tongues when an attempt is made to move around the bottle neck, so that further movement is not possible. In addition, the tongues prevent the locking projections from bending down.
Zweckmäßigerweise sind die Zungen in Umfangsrichtung so lang ausgebildet, daß sie wenigstens im aufgeschraubten Zustand die Rastvorsprünge auf der dem Flaschenhals zuge- wandten 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 Rastvorsprün¬ ge nacheinander immer wiederkehrend anzuheben. Eine andere zweckmäßige Weiterbildung besteht darin, daß die in AufSchraubrichtung vorn liegenden Kanten der Zungen so angeordnet sind, daß sich beim Aufschrauben zu¬ erst die Rastvorsprünge nach innen bewegen und dann die Zungen. Auf diese Weise ist sichergestellt, daß die vor- teilhafte Anlage der Zungen unmittelbar am Flaschenhals beim Aufschrauben sicher herbeigeführt wird.The tongues are expediently designed so long in the circumferential direction that at least in the screwed-on state they engage behind the locking projections on the side facing the bottle neck. The tongues therefore always rest securely on the bottle neck and therefore do not offer a gap through which a manipulation tool could be guided in the circumferential direction of the bottle neck in order to repeatedly raise the locking projections one after the other. Another useful training is that the edges of the tongues lying at the front in the screwing-on direction are arranged in such a way that when the screws are screwed on, the latching projections first move inwards and then the tongues. In this way it is ensured that the advantageous contact of the tongues is brought about securely directly on the bottle neck when screwing on.
Die Zungen liegen vorteilhafterweise federnd am Fla¬ schenhals an. Sie spannen dadurch den Sicherungsring radi¬ al 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 Fla¬ schenhals zurückgehalten werden. Durch die durch die Zun¬ gen 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. As a result, they preload the locking ring radially outwards. According to a development of the invention, the securing ring has at least one predetermined breaking point in the circumferential direction. This tears when the screw cap is opened, when the locking projections on the bead on the bottle neck are retained. As a result of the pretension caused by the tongues, the securing ring is stretched after the predetermined breaking point has been torn open, so that there are gaps between the predetermined breaking points that are easily visible, so that a guarantee is guaranteed.
Der Grundgedanke der Erfindung, spezielle Zungen vor¬ zusehen, die eine Manipulation verhindern sollen, ist grundsätzlich auch dann anwendbar, wenn die Kappe nicht durch ein Schraubgewinde, sondern durch eine Schnappver¬ bindung oder dergleichen gehalten ist.The basic idea of the invention, to provide special tongues which are intended to prevent manipulation, can in principle also be used if the cap is not held by a screw thread, but by a snap connection or the like.
Anhand der Zeichnung soll die Erfindung näher erläu¬ tert werden. Fig. 1 zeigt einen Axialschnitt durch ein Ausfüh¬ rungsbeispiel 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 derThe invention will be explained in more detail with reference to the drawing. Fig. 1 shows an axial section through an exemplary 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 the lower left part of the enlarged
Schraubkappe gemäß Fig. 1 im nicht aufge¬ schraubten Zustand, Fig. Λ 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 Schraub- kappe in aufgeschraubtem Zustand. 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 A zum Aufschrauben auf ein Außengewinde 5 eines Flaschenhalses 6, der nur teilweise dargestellt ist. Zwischen dem Boden 2 und einer Stirnkante 7 des Flaschen¬ halses 6 befindet sich eine Dichtung 8.1 in the unscrewed state, FIG. Λ is a view IV in FIG. 3, FIG. 5 is a section VV through FIG. 3, FIG. 6 corresponds to FIG. 5, but shows the screw cap when screwed on. Fig. 1 shows a screw cap 1 made of plastic according to an embodiment of the invention. It has a base 2 and a cylindrical screw part 3 with an internal thread A for screwing onto an external thread 5 of a bottle neck 6, which is only partially shown. A seal 8 is located between the base 2 and an end edge 7 of the bottle neck 6.
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 darge¬ stellten Aufschraubzustand einen Außenwulst 13 am Fla¬ schenhals 6 hintergreifen. An der Innenseite des Siche¬ rungsringes 11 befinden sich außerdem Zungen 1A, die fe- dernd an einer äußeren Wandung 15 des Flaschenhalses 6 anliegen.A lower edge 9 of the cylindrical part 3 is connected via predetermined breaking points 10 to a securing ring 11 which has locking projections 12 on the inside which, in the screwed-on state shown, engage behind an outer bead 13 on the bottle neck 6. On the inside of the securing ring 11 there are also tongues 1A which resiliently abut an outer wall 15 of the bottle neck 6.
In Fig. 2 ist ein Schnitt II-II durch Fig. 1 gezeigt. In dieser Darstellung ist erkennbar, daß sich die Zungen 1A in den Zwischenräumen zwischen den Rastvorsprüngen 12 befinden und jeweils paarweise benachbart zu den Rastvor¬ sprüngen 12 angeordnet und aufeinander zu gerichtet sind. Außerdem ist erkennbar, daß der Sicherungsring 11 Soll¬ bruchstellen 16 in Form von axial im Umfang des Siche¬ rungsringes 11 angeordneten Kerben aufweist. 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 aufge¬ schraubt und so der Flaschenhals 6 weggelassen ist. Da¬ durch ist erkennbar, daß die Zungen 1A im nicht aufge- schraubten Zustand der Schraubkappe 1 so weit nach innen ragen, daß sie über den im aufgeschraubten Zustand von der Außenwandung 15 des Flaschenhalses 6 eingenommenen radia¬ len Bereich nach innen vorstehen.FIG. 2 shows a section II-II through FIG. 1. It can be seen in this illustration that the tongues 1A are located in the spaces between the locking projections 12 and are arranged in pairs adjacent to the locking projections 12 and are directed towards one another. In addition, it can be seen that the securing ring 11 has predetermined breaking points 16 in the form of notches arranged axially in the circumference of the securing ring 11. FIG. 3 shows an enlarged detail from FIG. 1 in the area of the lower left part of the screw cap, in such a way that the screw cap is not screwed on and the bottle neck 6 is thus omitted. This makes it clear that, when the screw cap 1 is not screwed on, the tongues 1A protrude so far inward that they protrude inward beyond the radial area occupied by the outer wall 15 of the bottle neck 6 when screwed on.
Fig. A zeigt eine Ansicht IV in Fig. 3 in deren unte- rem Bereich. Es ist zu erkennen, daß die beiden in dieser Darstellung sichtbaren Zungen 1A sich außerhalb von der Innenwandung des Sicherungsringes 11 aufeinanderzu in den Bereich des Rastvorsprunges 12 erstrecken.A shows a view IV in FIG. 3 in its lower region. It can be seen that the two in this Representation of visible tongues 1A extend outside of the inner wall of the locking ring 11 towards each other in the 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 1A über die Rastvorsprünge 12 hinaus nach innen ragen und daß die durch eine Kerbe gebildete Sollbruchstelle 16 zwischen den Zungen 1A liegt.Fig. 5 shows a section V-V through Fig. 3. In this illustration, it is particularly clear that the tongues 1A protrude inward beyond the locking projections 12 in the relaxed state and that the predetermined breaking point 16 formed by a notch lies between the tongues 1A.
Fig. 6 entspricht im wesentlichen der Darstellung ge- maß Fig. 5, zeigt jedoch die Verhältnisse bei aufge¬ schraubter Schraubkappe. Es ist zu erkennen, daß die Zun¬ gen 1A nach innen gebogen und damit unter Spannung gesetzt sind, wobei sie gleichzeitig die Rastvorsprünge 12 hinter¬ greifen. Wird die in der Zeichnung dargestellte Schraubkappe auf eine Flasche aufgeschraubt, so stoßen zunächst die Rastvorsprünge 12 gegen den Außenwulst 13 des Flaschenhal¬ ses 6, so daß sie nach außen weggebogen werden. Dies ge¬ schieht nachfolgend auch bei weiterem Aufschrauben mit den Zungen 1A, deren Enden sich dabei aufeinanderzu bewegen. Im weiteren Verlauf des Aufschraubens kommen die Zungen 1A 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.FIG. 6 essentially corresponds to the representation according to FIG. 5, but shows the conditions when the screw cap is screwed on. It can be seen that the tongues 1A are bent inwards and are thus under tension, while at the same time engaging behind the locking projections 12. If the screw cap shown in the drawing is screwed onto a bottle, the locking projections 12 first abut the outer bead 13 of the bottle neck 6, so that they are bent outwards. In the following, this also occurs when the tongues 1A are further screwed on, the ends of which move towards one another. In the further course of the screwing on, the tongues 1A come free from the outer bead 13, so that they rest against the outer wall 15 of the bottle neck 6 due to their length and alignment with spring force. Finally, the locking projections 12 come free from the outer bead 13 so that they snap behind them.
Wird nun beim Abschrauben versucht, an den Rastvor¬ sprüngen 12 zu manipulieren, indem ein dünnes Messer oder dergleichen am Flaschenhals entlang unter den Sicherungs- ring 11 geschoben und versucht wird, es um den Flaschen¬ hals herumzuführen, um die Rastvorsprünge 12 über den Au¬ ßenwulst 13 zu bringen, so verfängt sich das Messer oder dergleichen je nach Bewegungsrichtung hinter den einen oder anderen Zungen 1A. Dadurch wird eine derartige Mani- pulation behindert oder sogar ganz verhindert. Außerdem reißen bei einer solchen Manipulation die Sollbruchstellen 15, so daß der Sicherungsring 11 in Umfangsrichtung ge¬ trennt wird. Aufgrund der Federspannung der Laschen 1A werden dabei die den aufgerissenen Sollbruchstellen 16 benachbarten Teile des Sicherungsringes 11 nach außen ge¬ drückt, so daß im Bereich der aufgerissenen Sollbruchstel¬ len 16 Spalte klaffen, die sich aufgrund der Federspannung der Laschen 1A 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 aufge¬ schraubt, so stützen sich die Laschen 1A 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 unscrewing is now attempted to manipulate the locking projections 12 by pushing a thin knife or the like along the bottle neck under the locking ring 11 and trying to guide it around the bottle neck around the locking projections 12 over the outer surface Bring ¬ ßenwulst 13, the knife or the like gets caught depending on the direction of movement behind one or the other tongues 1A. Such manipulation is hindered or even completely prevented. Moreover With such manipulation, the predetermined breaking points 15 tear, so that the securing ring 11 is separated in the circumferential direction. Due to the spring tension of the tabs 1A, the parts of the securing ring 11 adjacent to the torn predetermined breaking points 16 are pressed outward, so that 16 gaps gap in the area of the torn predetermined breaking points which cannot be closed due to the spring tension of the tabs 1A. This also applies when the screw cap is opened without manipulation, because the locking ring 11 is torn open at the predetermined breaking points 16. Although these cracks cannot be seen in the screwed-on state, but if the screw cap is screwed on again, the tabs 1A are supported resiliently on the outer wall 15 of the bottle neck 6, thereby pressing the locking ring 11 outwards and thereby producing the gaps in Area of predetermined breaking points 16. This column is then visible and serves as a guarantee feature.

Claims

Ansprüche Expectations
1. Schraubkappe aus Kunststoff zum Verschluß einer Flasche oder dergleichen, mit einem zylindrischen Schraubteil, das ein Innengewinde zum Aufschrauben auf ein Außengewinde des Flaschenhalses aufweist und das über dünne Sollbruchstel- len mit einem dem freien Rand des Schraubteils benachbar¬ ten Sicherungsring verbunden ist, an dem sich nach innen gerichtete, zungenartige Rastvorsprünge zum Hintergreifen eines Außenwulstes an einem Flaschenhals befinden, dadurch gekennzeichnet, daß an der Innenseite des Sicherungsringes (11) jeweils benachbart zu den Rastvorsprüngen (12) Zungen (1A) angeordnet sind, die in Umfangsrichtung aufeinanderzu und schräg nach innen gerichtet sind.1. Screw cap made of plastic for closing a bottle or the like, with a cylindrical screw part which has an internal thread for screwing onto an external thread of the bottle neck and which is connected via thin predetermined breaking points to a retaining ring adjacent to the free edge of the screw part which are inwardly directed, tongue-like locking projections for engaging behind an outer bead on a bottle neck, characterized in that tongues (1A) are arranged on the inside of the locking ring (11) adjacent to the locking projections (12), which towards one another and obliquely in the circumferential direction are directed inwards.
2. Schraubkappe nach Anspruch 1, dadurch gekennzeichnet, daß die Zungen (1A) in Umfangsrichtung so lang ausgebildet sind, daß sie wenigstens im aufgeschraubten Zustand die Rastvorsprünge (12) auf der dem Flaschenhals (6) zugewand¬ ten Seite hintergreifen.2. Screw cap according to claim 1, characterized in that the tongues (1A) are formed so long in the circumferential direction that they engage behind the locking projections (12) on the side of the bottle neck (6) at least in the screwed-on state.
3. Schraubkappe nach Anspruch 1, dadurch gekennzeichnet, daß die in AufSchraubrichtung vorn liegenden Kanten der Zungen (1A) so angeordnet sind, daß sich beim Aufschrauben zuerst die Rastvorsprünge (12) nach innen bewegen und dann die Zungen ( 1A ) .3. Screw cap according to claim 1, characterized in that the edges of the tongues (1A) lying in front in the screwing-on direction are arranged in such a way that when the screws are screwed on, the locking projections (12) first move inwards and then the tongues (1A).
A. Schraubkappe nach Anspruch 1, dadurch gekennzeichnet, daß der Sicherungsring (11) in Umfangsrichtung wenigstens eine Sollbruchstelle (16) aufweist. A. screw cap according to claim 1, characterized in that the retaining ring (11) has at least one predetermined breaking point (16) in the circumferential direction.
PCT/EP1995/002129 1994-09-17 1995-06-06 Plastic screw closure cap for a bottle or similar vessel WO1996008420A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59504506T DE59504506D1 (en) 1994-09-17 1995-06-06 PLASTIC SCREW CAP FOR CLOSING A BOTTLE OR THE LIKE
AU27371/95A AU2737195A (en) 1994-09-17 1995-06-06 Plastic screw closure cap for a bottle or similar vessel
DK95922499T DK0781237T3 (en) 1994-09-17 1995-06-06 Plastic screw cap for closing a bottle or the like
EP95922499A EP0781237B1 (en) 1994-09-17 1995-06-06 Plastic screw closure cap for a bottle or similar vessel
GR990400638T GR3029543T3 (en) 1994-09-17 1999-03-03 Plastic screw closure cap for a bottle or similar vessel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4433238.6 1994-09-17
DE4433238A DE4433238C1 (en) 1994-09-17 1994-09-17 Plastic screw cap for closing a bottle or the like

Publications (1)

Publication Number Publication Date
WO1996008420A1 true WO1996008420A1 (en) 1996-03-21

Family

ID=6528520

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/002129 WO1996008420A1 (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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247452A (en) * 1990-08-29 1992-03-04 Montgomery Daniel & Son Ltd Tamper-evident closure cap 2
EP0508702A1 (en) * 1991-04-08 1992-10-14 Japan Crown Cork Co. Ltd. Pilfer-proof synthetic resin cap
WO1994002371A1 (en) * 1992-07-16 1994-02-03 Precision Valve Australia Pty Ltd Tamper evident closure

Family Cites Families (3)

* 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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247452A (en) * 1990-08-29 1992-03-04 Montgomery Daniel & Son Ltd Tamper-evident closure cap 2
EP0508702A1 (en) * 1991-04-08 1992-10-14 Japan Crown Cork Co. Ltd. Pilfer-proof synthetic resin cap
WO1994002371A1 (en) * 1992-07-16 1994-02-03 Precision Valve Australia Pty Ltd Tamper evident closure

Also Published As

Publication number Publication date
GR3029543T3 (en) 1999-06-30
ATE174292T1 (en) 1998-12-15
DE59504506D1 (en) 1999-01-21
EP0781237A1 (en) 1997-07-02
DK0781237T3 (en) 1999-08-16
DE4433238C1 (en) 1996-01-18
EP0781237B1 (en) 1998-12-09
AU2737195A (en) 1996-03-29
ES2126903T3 (en) 1999-04-01

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