EP0673849B1 - Tube closure made of plastic with garantee strip - Google Patents

Tube closure made of plastic with garantee strip Download PDF

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Publication number
EP0673849B1
EP0673849B1 EP95810180A EP95810180A EP0673849B1 EP 0673849 B1 EP0673849 B1 EP 0673849B1 EP 95810180 A EP95810180 A EP 95810180A EP 95810180 A EP95810180 A EP 95810180A EP 0673849 B1 EP0673849 B1 EP 0673849B1
Authority
EP
European Patent Office
Prior art keywords
tube
guarantee
tube closure
guarantee strip
connecting elements
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
EP95810180A
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German (de)
French (fr)
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EP0673849A1 (en
Inventor
Karl Bösch
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.)
H OBRIST AND CO AG
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H OBRIST AND CO AG
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Publication date
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Publication of EP0673849A1 publication Critical patent/EP0673849A1/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
    • B65D41/3457—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 formed separately but connected to the closure

Definitions

  • the invention relates to a tube closure with a Plastic screw cap according to the preamble of claim 1.
  • Such tube closures are in various designs known and common and e.g. in DE-U-93 00 042 of the applicant.
  • the tube thread is either molded onto the tube neck or formed in one piece with the tube neck.
  • solutions are also known in which the tube itself does not Carries thread and a threaded part e.g. form-fitting on one Threadless approach snapped onto the tube shoulder or otherwise connected to the tube.
  • the guarantee band is tear-off connected to the tube neck.
  • the guarantee tape With attached Screw cap, the guarantee tape is so with the Screw cap engages that when opening it for the first time the tube tears off.
  • the screw cap instructs a bead protruding radially outwards from its lower edge on which the guarantee tape overlaps when the screw cap is on. When opened, the guarantee band is through this bead pulled upwards so that it tears off the tube neck.
  • the invention has for its object the construction such a tube closure with a guarantee tape like this to improve that the guarantee band on the one hand is functional indicates the first opening and after a manipulation not just placed over the tube neck again and on this can be jammed and on the other hand constructive is easy to manufacture and can be attached to the tube closure.
  • this task is performed according to the characteristics of the Claim 1 solved.
  • the invention looks optimal simple way, the guarantee band by at least two Subdivide separating slots so that there is damage in at least two protruding band segments divides.
  • the sensitivity of the guarantee tape is very high depending on the depth of the separation slots. These must be in in any case be so deep that the guarantee band is first-time opening divided into individual segments.
  • the guarantee band by the Separation slots completely divided so that it is already in front the first opening of several, not directly with each other related guarantee band segments. Each these segments are connected by at least two connecting elements held in place.
  • the tamper-evident band disintegrates particularly safely after manipulation, if radially inward on the guarantee band Retaining elements are provided and if the screw cap at least one radially outward bead or Protrusion carries over the form-fitting elements Can snap into place as soon as the separating slots in the starting position snap back.
  • the guarantee band is particularly stable and firmly with a retaining ring or the thread or the tube neck connect if one on each side of the separating slots Connecting element is provided. They also stand Individual segments of the guarantee tape after the connecting elements have been torn striking in this way in particular axially symmetrical shape.
  • Each tamper-evident segment is embodied by two Fasteners are held at each end of the tether segment one of the connecting elements arranged is. This ensures that the segment after the Breakage of one of its connecting elements only on one End is connected to the tube neck so that the injury is clearly visible.
  • tear-off bars of different thicknesses Connecting elements between the guarantee band and the tube neck (Retaining ring, threaded attachment, etc.) has, however, also Generally proven:
  • Such webs can be used on the one hand train it in such a way that it is sufficiently firm for assembly Connection between a retaining ring and the guarantee band is that there is also an injection molding process the guarantee tape is led over the tear-off bars and that, on the other hand, the webs are reliable when they are opened for the first time tear and thus indicate the opening.
  • the arrangement of two diametrically opposite one another has proven its worth arranged separating slots, which are an annular Divide the all-round guarantee band into two semicircle segments.
  • the screw cap can be secured with the Secure the guarantee band if there is an axial counter on the guarantee band barbed tube closure is provided.
  • the screw cap 6 shown schematically in FIG. 1 is used for closing the also shown schematically in Figure 2 Tube neck 1 and therefore forms together with this a tube cap.
  • the tube neck 1 has an external thread 3 on and on the screw cap 6 is a corresponding one Internal thread 5 provided.
  • the connection between the guarantee band 10 and the tube neck 1 is in this example by a Thread 3 engaging ring 4, on which the Guarantee tape 10 by means of serving as a connecting element Tear bars 9, 9a is attached.
  • the guarantee band 10 points at its upper end radially inwardly directed retaining elements 11, which is in cross section the shape of a barb have, and whose inner diameter is smaller than that Outside diameter of one at the lower edge of the screw cap 6 outwardly projecting projection 8.
  • the retaining elements 11 form a positive screw cap Connection with the projection 8 of the screw cap, which only can be solved by destroying the guarantee band.
  • the tube neck and the guarantee band 10 of shows above, it can be seen that the guarantee tape 10 by divided into two approximately vertical dividing slots 7 is.
  • the separating slots 7 shown here cut through this ring-shaped circumferential guarantee band 10 completely, so that it basically two independent, semicircular guarantee band segments.
  • This is a preferred embodiment, but in principle it would also be possible to reduce the depth of the separation slots 7, so that Guarantee tape 10 in the area of the separating slots 7 only would be weakened and then when opening the tube closure for the first time would break up.
  • the two guarantee band segments are only at their ends by tear-off webs 9, 9a connected to the inner ring 4. Basically you could further tear-off bridges along the guarantee band segments to be ordered.
  • tear-off webs 9, 9a arranged at the ends have the advantage that when opening the lock one of the two webs as first tears and thus ensures that the segment after opening the closure only at one end the ring 4 is connected so that it stands out clearly visible.
  • the two tear-off webs 9, 9a are preferably different highly trained to ensure that one of the two webs (the weaker web 9) as the first tears. The risk that both webs 9, 9a tear at the same time, can be excluded.
  • the projection 8 runs on the Lower edge of the retaining elements 11 and takes them up with until the tear-off webs 9 tear off and release the guarantee tape. Since the tear-off webs 9 on the side the inner surface of the guarantee tape 10 is formed exerted a shear force on the tear-off webs 9 when opened, so that they tear reliably.
  • the condition of the guarantee tape after opening the tube cap for the first time is shown in Figures 6 and 7.
  • the different strong expression of the tear-off webs 9, 9a means that only tear off the weaker tear-off webs 9 and the individual ones Segments through the stronger webs 9a with the inner ring 4th stay connected.
  • the ring 4 with the guarantee band 10 can be advantageous be made of a plastic with a different color than the screw cap 6. This allows the visual display improve from the lack of the guarantee band 10.
  • Figure 8 shows the side view of the tube neck of Figure 2.
  • the continuous one is in particular Separation slot 7 of the guarantee band 10 clearly recognizable, in lower area of the separation slot 7 is a section of the Rings 4 arranged within the guarantee band 10 are visible.
  • FIG. 9 there is a tube neck with an alternative Design variant of the guarantee tape shown, which has three separating slots 7a and the same from three major guarantee band segments 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Frames And Binding Bands (AREA)
  • Closures For Containers (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Bag Frames (AREA)

Abstract

The guarantee sealing-strip (10) is divided by at least two slits into at least two segments. At least one connecting element (9,9a) of varying resistance is positioned on each side of each slit which runs parallel to the lengthwise axis of the thread (3). The connecting element (11) on the guarantee strip is in the form of a barb pointing axially towards the closure piece of the tube.

Description

Die Erfindung betrifft einen Tubenverschluss mit einer Schraubkappe aus Kunststoff gemäss Oberbegriff von Anspruch 1. Derartige Tubenverschlüsse sind in verschiedensten Ausführungsformen bekannt und gebräuchlich und z.B. in der DE-U-93 00 042 der Anmelderin beschrieben.The invention relates to a tube closure with a Plastic screw cap according to the preamble of claim 1. Such tube closures are in various designs known and common and e.g. in DE-U-93 00 042 of the applicant.

Das Tuben-Gewinde wird dabei entweder am Tubenhals angeformt oder einstückig mit dem Tubenhals ausgebildet. Andererseits sind auch Lösungen bekannt, bei denen die Tube selbst kein Gewinde trägt und ein Gewindeteil z.B. formschlüssig auf einen gewindelosen Ansatz an der Tubenschulter aufgeschnappt oder anderweitig mit der Tube verbunden wird. Das Garantieband ist abreissbar mit dem Tubenhals verbunden. Bei aufgesetzter Schraubkappe steht das Garantieband derart mit der Schraubkappe in Eingriff, dass es beim erstmaligen Oeffnen der Tube abreisst. In der Regel weist die Schraubkappe an ihrem unteren Rand einen radial auswärts abstehenden Wulst auf, den das Garantieband bei aufgesetzer Schraubkappe übergreift. Beim Oeffnen wird das Garantieband durch diesen Wulst nach oben gezogen, so dass es vom Tubenhals abreisst.The tube thread is either molded onto the tube neck or formed in one piece with the tube neck. On the other hand solutions are also known in which the tube itself does not Carries thread and a threaded part e.g. form-fitting on one Threadless approach snapped onto the tube shoulder or otherwise connected to the tube. The guarantee band is tear-off connected to the tube neck. With attached Screw cap, the guarantee tape is so with the Screw cap engages that when opening it for the first time the tube tears off. As a rule, the screw cap instructs a bead protruding radially outwards from its lower edge on which the guarantee tape overlaps when the screw cap is on. When opened, the guarantee band is through this bead pulled upwards so that it tears off the tube neck.

Bei den bekannten, ringförmig umlaufenden Garantiebändern führt dies dazu, dass das Garantieband beim Oeffnen vollständig vom Tubenhals abgerissen wird und auf der Schraubkappe verbleibt. Nach dem Wiederverschliessen eines solchen Verschlusses kann das Garantieband wieder seine ursprüngliche Lage einnehmen, so dass man der Tube das erstmalige Oeffnen kaum ansieht. Um dies zu vermeiden, muss der Garantiering nach dem Oeffnen der Tube von Hand über das obere Ende der Schraubkappe abgenommen werden. Diese Art von Garantieband kann daher bei T-förmigen oder anderen nach oben grösser werdenden Schraubkappen nicht verwendet werden, da das Band dann nicht abgenommen werden kann und somit auch nach dem Oeffnen fest mit der Schraubkappe verbunden bleiben würde.With the well-known, circular all-round guarantee bands this leads to the guarantee band being completely open is torn off the tube neck and on the screw cap remains. After resealing one Closure can restore the guarantee band to its original Take position so that the tube can be opened for the first time hardly looks at. To avoid this, the guarantee ring after opening the tube by hand over the upper end of the Screw cap can be removed. This kind of guarantee tape can therefore be larger with T-shaped or others upwards screw caps will not be used because the tape then can not be removed and thus also after the Would remain firmly attached to the screw cap.

Der Erfindung liegt die Aufgabe zugrunde, die Konstruktion eines solchen Tubenverschlusses mit einem Garantieband derart zu verbessern, dass das Garantieband einerseits funktionstüchtig das erstmalige Öffnen anzeigt und nach einer Manipulation nicht wieder einfach über den Tubenhals gelegt und auf diesem verklemmt werden kann und andererseits konstruktiv einfach herstellbar und am Tubenverschluss anbringbar ist.The invention has for its object the construction such a tube closure with a guarantee tape like this to improve that the guarantee band on the one hand is functional indicates the first opening and after a manipulation not just placed over the tube neck again and on this can be jammed and on the other hand constructive is easy to manufacture and can be attached to the tube closure.

Erfindungsgemäss wird diese Aufgabe gemäss Kennzeichen des Patentanspruchs 1 gelöst. Die Erfindung sieht dabei auf optimal einfache Weise vor, das Garantieband durch wenigstens zwei Trennschlitze derart zu unterteilen, dass es sich bei einer Beschädigung in wenigstens zwei abstehende Garantieband-Segmente aufteilt. Beim erstmaligen Oeffnen der Schraubkappe werden die Garantieband-Segmente so weit abgerissen, bis sie die Schraubkappe freigeben. Sie werden dabei nicht vollständig abgerissen und bleiben auch nach dem Oeffnen Mittels eines am gewinde montierten Ringes durch wenigstens ein Verbindungselement mit dem Tubenhals verbunden. Sie müssen daher vom Verbraucher vollständig entfernt werden, was zur Bewusstseinsbildung der Erstöffnung führt. Das erstmalige Oeffnen wird durch die abstehenden Garantieband-Segmente deutlich angezeigt, und gleichzeitig haben die einzelnen Segmente gegenüber einem umlaufenden Garantiering den Vorteil, dass sie von der Schraubkappe getrennt werden, so dass auch T-förmige Verschlusskappen verwendet werden können und nach dem Wiederverschliessen der Tube deutlich erkennbar ist, dass diese bereits einmal geöffnet wurde. Die abreissbare Verbindung zwischen dem Garantieband und dem Tubenhals wird Mittels des zusätzlichen Ringes hergestellt, wobei dieser auf das Tubengewinde aufgeschraubt wird oder hinter dem Gewinde einrastet. In jedem Fall wird das Garantieband durch Verbindungselemente mit diesem Ring verbunden.According to the invention, this task is performed according to the characteristics of the Claim 1 solved. The invention looks optimal simple way, the guarantee band by at least two Subdivide separating slots so that there is damage in at least two protruding band segments divides. When opening the screw cap for the first time the segments of the tamper-evident band are torn down until the Release the screw cap. You will not be complete torn down and remain even after opening By means of a ring mounted on the thread by at least a connecting element connected to the tube neck. she must therefore be completely removed by the consumer what leads to awareness raising of the first opening. The first time It is opened by the above-mentioned guarantee band segments clearly displayed, and at the same time the individual Segments over an all-round ring guarantee that they are separated from the screw cap so that also T-shaped caps can be used and is clearly recognizable after reclosing the tube, that it has already been opened once. The tearable connection between the guarantee tape and the Tube neck is made using the additional ring, whereby this is screwed onto the tube thread or engages behind the thread. In any case, the guarantee band connected to this ring by fasteners.

Die Empfindlichkeit des Garantiebands ist in starkem Masse von der Tiefe der Trennschlitze abhängig. Diese müssen in jedem Fall so tief sein, dass sich das Garantieband beim erstmaligen Oeffnen in einzelne Segmente aufteilt. Bei einer bevorzugten Ausführungsform wird das Garantieband durch die Trennschlitze vollständig unterteilt, so dass es bereits vor dem erstmaligen Oeffnen aus mehreren, nicht direkt miteinander verbundenen Garantieband-Segmenten besteht. Jedes dieser Segmente wird durch wenigstens zwei Verbindungselemente in seiner Position gehalten.The sensitivity of the guarantee tape is very high depending on the depth of the separation slots. These must be in in any case be so deep that the guarantee band is first-time opening divided into individual segments. At a preferred embodiment, the guarantee band by the Separation slots completely divided so that it is already in front the first opening of several, not directly with each other related guarantee band segments. Each these segments are connected by at least two connecting elements held in place.

Besonders sicher zerfällt das Garantieband nach einer Manipulation, wenn am Garantieband radial nach innen gerichtete Festhalteelemente vorgesehen sind und wenn die Schraubkappe wenigstens einen radial nach aussen gerichteten Wulst oder Vorsprung trägt, über den die Festhalteelemente formschlüssig einrasten können, sobald die Trennschlitze in die Ausgangslage zurückschnappen.The tamper-evident band disintegrates particularly safely after manipulation, if radially inward on the guarantee band Retaining elements are provided and if the screw cap at least one radially outward bead or Protrusion carries over the form-fitting elements Can snap into place as soon as the separating slots in the starting position snap back.

Das Garantieband lässt sich besonders stabil ausbilden und fest mit einem Haltering bzw. dem Gewinde oder dem Tubenhals verbinden, wenn auf beiden Seiten der Trennschlitze je ein Verbindungselement vorgesehen ist. Ausserdem stehen die Einzelsegmente des Garantiebands nach dem Reissen der Verbindungselemente auf diese Weise auffällig insbesondere in axialsymmetrischer Form ab. Bei einer besonders bevorzugten Ausführungsform wird jedes Garantieband-Segment durch zwei Verbindungselemente gehalten, wobei an jedem Ende des Garantieband-Segments eines der Verbindungselemente angeordnet ist. Damit ist sichergestellt, dass das Segment nach dem Bruch von einem seiner Verbindungselemente nur noch an einem Ende mit dem Tubenhals verbunden ist, so dass die Verletzung deutlich sichtbar ist.The guarantee band is particularly stable and firmly with a retaining ring or the thread or the tube neck connect if one on each side of the separating slots Connecting element is provided. They also stand Individual segments of the guarantee tape after the connecting elements have been torn striking in this way in particular axially symmetrical shape. In a particularly preferred Each tamper-evident segment is embodied by two Fasteners are held at each end of the tether segment one of the connecting elements arranged is. This ensures that the segment after the Breakage of one of its connecting elements only on one End is connected to the tube neck so that the injury is clearly visible.

Es kann vorkommen, dass beim Oeffnen des Verschlusses beide Verbindungselemente eines solchen Segments gleichzeitig brechen. Das betreffende Segment fällt in einem solchen Fall von selbst weg, was insbesondere bei Lebensmitteln wie z.B. Mayonnaise oder Senf enthaltenden Tuben, die bei der Zubereitung von Speisen verwendet werden, ein Nachteil ist: bei Unachtsamkeit des Verbrauchers könnte ein Garantieband-Segment unbemerkt in eine zubereitete Speise fallen. Um dies zu vermeiden und sicherzustellen, dass nur eines der beiden Verbindungselemente bricht, werden diese bevorzugt unterschiedlich stark ausgeprägt, so dass beim Oeffnen nur das schwächere bricht.It can happen that both when opening the closure Connecting elements of such a segment at the same time break. The segment in question falls in such a case by itself, which is particularly important for foods such as Tubes containing mayonnaise or mustard used in the preparation of food are used, one disadvantage is: Carelessness of the consumer could be a guarantee band segment fall into a prepared dish unnoticed. To do this avoid and ensure that only one of the two Connecting elements breaks, they are preferably different pronounced, so that when opening only that weaker breaks.

Die Verwendung unterschiedlich starker Abreissstege als Verbindungselemente zwischen dem Garantieband und dem Tubenhals (Haltering, Gewindeaufsatz etc.) hat sich jedoch auch ganz allgemein bewährt: Derartige Stege lassen sich einerseits so ausbilden, dass eine für die Montage ausreichend feste Verbindung zwischen einem Haltering und dem Garantieband besteht, dass ausserdem bei der Herstellung im Spritzgussverfahren das Garantieband über die Abreissstege geführt wird und dass andererseits beim erstmaligen Öffnen die Stege zuverlässig reissen und damit das Öffnen anzeigen. Besonders bewährt hat sich die Anordnung von zwei etwa diametral gegenüberliegend angeordneten Trennschlitzen, die ein ringförmig umlaufendes Garantieband in zwei Halbkreissegmente unterteilen.The use of tear-off bars of different thicknesses as Connecting elements between the guarantee band and the tube neck (Retaining ring, threaded attachment, etc.) has, however, also Generally proven: Such webs can be used on the one hand train it in such a way that it is sufficiently firm for assembly Connection between a retaining ring and the guarantee band is that there is also an injection molding process the guarantee tape is led over the tear-off bars and that, on the other hand, the webs are reliable when they are opened for the first time tear and thus indicate the opening. Especially The arrangement of two diametrically opposite one another has proven its worth arranged separating slots, which are an annular Divide the all-round guarantee band into two semicircle segments.

Besonders sicher lässt sich der Schraubverschluss mit dem Garantieband sichern, wenn am Garantieband ein axial gegen den Tubenverschluss gerichteter Widerhaken vorgesehen ist. The screw cap can be secured with the Secure the guarantee band if there is an axial counter on the guarantee band barbed tube closure is provided.

Die Erfindung ist im folgenden in Ausführungsbeispielen anhand der Zeichnungen näher erläutert. Es zeigen:

Figur 1
die schematische Darstellung der Schraubkappe eines Tubenverschlusses,
Figur 2
die schematische Darstellung eines zu der in Figur 1 gezeigten Schraubkappe korrespondierenden Tubenhalses mit Garantiering,
Figur 3
einen Tubenverschluss bestehend aus der in Figur 1 gezeigten Schraubkappe und dem in Figur 2 dargestellten Tubenhals mit Garantiering während dem erstmaligen Verschliessen,
Figur 4
den bereits in Figur 4 gezeigten Tubenverschluss im verschlossenen Zustand,
Figur 5
den in Figur 2 gezeigten Tubenhals in der Ansicht von oben,
Figuren 6 und 7
den Zustand des bereits in den Figuren 2 und 3 gezeigten Tubenhalses mit Garantieband nach dem erstmaligen Oeffnen des Verschlusses,
Figur 8
eine Seitenansicht des Tubenhalses von Figur 2, und
Figur 9
einen Tubenhals mit einem Garantieband mit drei Trennschlitzen aus der Sicht von oben.
The invention is explained below in exemplary embodiments with reference to the drawings. Show it:
Figure 1
the schematic representation of the screw cap of a tube closure,
Figure 2
1 shows a schematic representation of a tube neck with a guarantee ring corresponding to the screw cap shown in FIG. 1,
Figure 3
1 a tube closure consisting of the screw cap shown in FIG. 1 and the tube neck shown in FIG. 2 with a guarantee ring during the initial closure,
Figure 4
the tube closure already shown in FIG. 4 in the closed state,
Figure 5
the tube neck shown in Figure 2 in the view from above,
Figures 6 and 7
the condition of the tube neck already shown in FIGS. 2 and 3 with the guarantee band after the first opening of the closure,
Figure 8
a side view of the tube neck of Figure 2, and
Figure 9
a tube neck with a guarantee band with three separating slots from the view from above.

Die in Figur 1 schematisch dargestellte Schraubkappe 6 dient zum Verschliessen des in Figur 2 ebenfalls schematisch dargestellten Tubenhalses 1 und bildet daher zusammen mit diesem einen Tubenverschluss. Der Tubenhals 1 weist ein Aussengewinde 3 auf und an der Schraubkappe 6 ist ein dazu korrespondierendes Innengewinde 5 vorgesehen.The screw cap 6 shown schematically in FIG. 1 is used for closing the also shown schematically in Figure 2 Tube neck 1 and therefore forms together with this a tube cap. The tube neck 1 has an external thread 3 on and on the screw cap 6 is a corresponding one Internal thread 5 provided.

An dem in Figur 2 gezeigten Tubenhals 1 ist ein ringförmig umlaufendes Garantieband 10 befestigt, das koaxial zum Gewinde 3 verläuft. Die Verbindung zwischen dem Garantieband 10 und dem Tubenhals 1 wird in diesem Beispiel durch einen das Gewinde 3 untergreifenden Ring 4 hergestellt, an welchem das Garantieband 10 mittels als Verbindungselement dienenden Abreissstegen 9, 9a befestigt ist. Das Garantieband 10 weist an seinem oberen Ende radial nach innen gerichtete Festhalteelemente 11 auf, die im Querschnitt die Form eines Widerhakens haben, und deren Innendurchmesser kleiner ist als der Aussendurchmesser eines am unteren Rand der Schraubkappe 6 nach aussen vorstehenden Vorsprungs 8. Die Festhalteelemente 11 bilden bei aufgesetzter Schraubkappe eine formschlüssige Verbindung mit dem Vorsprung 8 der Schraubkappe, welche nur durch Zerstören des Garantiebandes gelöst werden kann.On the tube neck 1 shown in FIG. 2 there is a ring all-round guarantee tape 10 attached, the coaxial to the thread 3 runs. The connection between the guarantee band 10 and the tube neck 1 is in this example by a Thread 3 engaging ring 4, on which the Guarantee tape 10 by means of serving as a connecting element Tear bars 9, 9a is attached. The guarantee band 10 points at its upper end radially inwardly directed retaining elements 11, which is in cross section the shape of a barb have, and whose inner diameter is smaller than that Outside diameter of one at the lower edge of the screw cap 6 outwardly projecting projection 8. The retaining elements 11 form a positive screw cap Connection with the projection 8 of the screw cap, which only can be solved by destroying the guarantee band.

Beim erstmaligen Aufschrauben der Schraubkappe 6 wird der obere Rand des Garantiebands durch den Vorsprung 8 der Schraubkappe elastisch nach aussen gedrückt, so dass die Festhalteelemente 11 bei fortgesetzter Aufschraubbewegung über den Vorsprung 8 schnappen. Dieser Aufschraubvorgang ist in Figur 3 dargestellt, Figur 4 zeigt den Tubenverschluss mit vollständig aufgeschraubter Schraubkappe 6, deren Vorsprung 8 von den Festhalteelementen 11 des Garantiebands 10 übergriffen wird.When the screw cap 6 is screwed on for the first time, the upper edge of the guarantee band through the projection 8 of the Screw cap pressed elastically outwards so that the Retaining elements 11 with continued unscrewing movement Snap over the tab 8. This is screwing on shown in Figure 3, Figure 4 shows the tube closure with screw cap 6 completely screwed on, the projection 8 overlapped by the retaining elements 11 of the guarantee band 10 becomes.

Aus Figur 5, die den Tubenhals und das Garantieband 10 von oben zeigt, ist ersichtlich, dass das Garantieband 10 durch zwei etwa vertikal verlaufende Trennschlitze 7 unterteilt ist. Die hier gezeigten Trennschlitze 7 durchtrennen das ringförmig umlaufende Garantieband 10 vollständig, so dass es sich im Grunde genommen um zwei voneinander unabhängige, halbkreisförmige Garantieband-Segmente handelt. Dies ist eine bevorzugte Ausführungsform, es wäre jedoch grundsätzlich auch möglich, die Tiefe der Trennschlitze 7 zu reduzieren, so dass Garantieband 10 im Bereich der Trennschlitze 7 lediglich geschwächt wäre und dann beim erstmaligen Oeffnen des Tubenverschlusses aufbrechen würde. Die beiden Garantieband-Segmente sind lediglich an ihren Enden durch Abreissstege 9, 9a mit dem inneren Ring 4 verbunden. Grundsätzlich könnten entlang den Garantieband-Segmenten weitere Abreissstege angeordnet werden. Die Beschränkung auf lediglich zwei an den Enden angeordneten Abreissstege 9, 9a hat jedoch den Vorteil, dass beim Oeffnen des Verschlusses einer der beiden Stege als erster reisst und somit sichergestellt ist, dass das Segment nach dem Oeffnen des Verschlusses nur noch an einem Ende mit dem Ring 4 verbunden ist, so dass es deutlich sichtbar absteht.From Figure 5, the tube neck and the guarantee band 10 of shows above, it can be seen that the guarantee tape 10 by divided into two approximately vertical dividing slots 7 is. The separating slots 7 shown here cut through this ring-shaped circumferential guarantee band 10 completely, so that it basically two independent, semicircular guarantee band segments. this is a preferred embodiment, but in principle it would also be possible to reduce the depth of the separation slots 7, so that Guarantee tape 10 in the area of the separating slots 7 only would be weakened and then when opening the tube closure for the first time would break up. The two guarantee band segments are only at their ends by tear-off webs 9, 9a connected to the inner ring 4. Basically you could further tear-off bridges along the guarantee band segments to be ordered. The limitation to only two at the However, tear-off webs 9, 9a arranged at the ends have the advantage that when opening the lock one of the two webs as first tears and thus ensures that the segment after opening the closure only at one end the ring 4 is connected so that it stands out clearly visible.

Bevorzugt werden die beiden Abreissstege 9, 9a unterschiedlich stark ausgebildet, so dass sichergestellt ist, dass einer der beiden Stege (der schwächere Steg 9) als erster reisst. Die Gefahr dass beide Stege 9, 9a gleichzeitig reissen, kann damit ausgeschlossen werden. Bevorzugt werden die stärkeren Abreissstege 9a und die schwächeren Abreissstege 9 so verteilt, dass von den an einen Trennschlitz 7 anschliessenden Segment-Enden jeweils eines durch einen stärkeren Steg 9a und das andere durch einen schwächeren Steg 9 mit dem inneren Ring 4 verbunden ist. Damit wird beim Oeffnen des Verschlusses ein regelmässiges Bild des aufgebrochenen Garantiebands erreicht, bei dem vorliegenden Beispiel mit zwei halbkreisförmigen Garantieband-Segmenten ergibt sich ein etwa axialsymmetrisches Bild.The two tear-off webs 9, 9a are preferably different highly trained to ensure that one of the two webs (the weaker web 9) as the first tears. The risk that both webs 9, 9a tear at the same time, can be excluded. The are preferred stronger tear-off webs 9a and the weaker tear-off webs 9 distributed in such a way that of those adjoining a separating slot 7 Segment ends one by a stronger web 9a and the other through a weaker web 9 with the inner ring 4 is connected. This will open the Closes a regular picture of the broken guarantee band reached, in the present example with two semicircular guaranty band segments results in an approx axially symmetric image.

Beim Oeffnen der Schraubkappe 6 läuft der Vorsprung 8 auf die Unterkante der Festhalteelemente 11 auf und nimmt diese solange nach oben mit, bis die Abreissstege 9 abreissen und das Garantieband freigeben. Da die Abreissstege 9 seitlich an der Innenfläche des Garantiebands 10 angeformt sind, wird beim Oeffnen eine Scherkraft auf die Abreissstege 9 ausgeübt, so dass diese zuverlässig reissen. Der Zustand des Garantiebands nach dem erstmaligen Oeffnen des Tubenverschlusses ist in den Figuren 6 und 7 dargestellt. Die unterschiedlich starke Ausprägung der Abreissstege 9, 9a führt dazu, dass nur die schwächeren Abreissstege 9 abreissen und die einzelnen Segmente durch die stärkeren Stege 9a mit dem inneren Ring 4 verbunden bleiben. Durch die bereits angesprochene, abwechselnde Anordnung von starken und schwachen Abreissstegen ergibt sich ein regelmässiges, im vorliegenden Fall axialsymmetrisches Bild des aufgebrochenen Garantiebands.When opening the screw cap 6, the projection 8 runs on the Lower edge of the retaining elements 11 and takes them up with until the tear-off webs 9 tear off and release the guarantee tape. Since the tear-off webs 9 on the side the inner surface of the guarantee tape 10 is formed exerted a shear force on the tear-off webs 9 when opened, so that they tear reliably. The condition of the guarantee tape after opening the tube cap for the first time is shown in Figures 6 and 7. The different strong expression of the tear-off webs 9, 9a means that only tear off the weaker tear-off webs 9 and the individual ones Segments through the stronger webs 9a with the inner ring 4th stay connected. Through the already mentioned, alternating Arrangement of strong and weak tear-off bars there is a regular, in the present case axially symmetrical Image of the broken guarantee band.

Da die Abreissstege 9 von der Aussenfläche des Rings 4 radial nach aussen stehen und in die Innenwand des Garantiebands 10 laufen, lässt sich der Ring 4 auch einfach in einem Spritzgusswerkzeug herstellen, das ohne radial öffnende Backen arbeitet. Der Ring 4 mit dem Garantieband 10 kann vorteilhaft aus einem Kunststoff mit anderer Farbe hergestellt werden als die Schraubkappe 6. Dadurch lässt sich die optische Anzeige vom Fehlen des Garantiebands 10 verbessern.Since the tear-off webs 9 radially from the outer surface of the ring 4 stand outwards and into the inner wall of the guarantee band 10 the ring 4 can also be easily run in an injection mold produce that without radially opening jaws is working. The ring 4 with the guarantee band 10 can be advantageous be made of a plastic with a different color than the screw cap 6. This allows the visual display improve from the lack of the guarantee band 10.

Figur 8 zeigt die Seitenansicht des Tubenhalses von Figur 2. In dieser Darstellung ist insbesondere der durchgehende Trennschlitz 7 des Garantiebands 10 deutlich erkennbar, im unteren Bereich des Trennschlitzes 7 ist ein Ausschnitt des innerhalb von Garantieband 10 angeordneten Rings 4 sichtbar.Figure 8 shows the side view of the tube neck of Figure 2. In this illustration, the continuous one is in particular Separation slot 7 of the guarantee band 10 clearly recognizable, in lower area of the separation slot 7 is a section of the Rings 4 arranged within the guarantee band 10 are visible.

Schliesslich ist in Figur 9 ein Tubenhals mit einer alternativen Ausführungsvariante des Garantiebands dargestellt, welches drei Trennschlitze 7a aufweist und aus drei gleich grossen Garantieband-Segmenten 12 besteht.Finally, in Figure 9 there is a tube neck with an alternative Design variant of the guarantee tape shown, which has three separating slots 7a and the same from three major guarantee band segments 12.

Claims (9)

  1. A tube closure having a screwthread (3) on a tube neck (1) which is closable by a screw cap (6), wherein fixed to the tube neck (1) by means of connecting elements (9, 9a) which can be torn away is a freely projecting guarantee strip (10) which is in engagement with the screw cap in such a way that the guarantee strip (10) can be separated from the connecting elements (9, 9a) when the screw cap (6) is opened, characterised in that the guarantee strip (10) is subdivided into at least two segments by at least two separating slits (7) and the guarantee strip (10) is formed integrally with a ring (4) serving for mounting to the screwthread (3) and with the tear-away connecting elements (9) which are disposed between the guarantee strip (10) and the ring (4).
  2. A tube closure according to claim 1 characterised in that at least one respective connecting element (9, 9a) is provided on both sides of the separating slit (7).
  3. A tube closure according to claim 1 or claim 2 characterised in that the separating slit (7) completely subdivides the guarantee strip (10).
  4. A tube closure according to one of the preceding claims characterised in that the connecting elements (9, 9a) are adapted to afford different resistances.
  5. A tube closure according to one of the preceding claims characterised in that the separating slit (7) extends parallel to the longitudinal axis of the screwthread (3).
  6. A tube closure according to one of the preceding claims characterised in that the connecting element (11) provided on the guarantee strip is in the form of a barb portion which is directed axially towards the tube closure (6).
  7. A tube closure according to one of claims 1 to 6 characterised in that each of the guarantee strip segments is fixed to the screwthread by means of two tear-away connecting elements (9, 9a), wherein one of the connecting elements (9, 9a) is arranged at each end of the guarantee strip segment.
  8. A tube closure according to claim 7 characterised in that the two tear-away connecting elements of each guarantee strip segment are adapted to afford different resistances.
  9. A tube closure according to claim 8 characterised in that the ends of the guarantee strip segments, which adjoin a separating slit (7), are fixed to the tube neck by connecting elements (9, 9a) which afford different resistances.
EP95810180A 1994-03-25 1995-03-17 Tube closure made of plastic with garantee strip Expired - Lifetime EP0673849B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH89694 1994-03-25
CH896/94 1994-03-25

Publications (2)

Publication Number Publication Date
EP0673849A1 EP0673849A1 (en) 1995-09-27
EP0673849B1 true EP0673849B1 (en) 1998-05-27

Family

ID=4197707

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Application Number Title Priority Date Filing Date
EP95810180A Expired - Lifetime EP0673849B1 (en) 1994-03-25 1995-03-17 Tube closure made of plastic with garantee strip

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Country Link
EP (1) EP0673849B1 (en)
AT (1) ATE166625T1 (en)
DE (1) DE59502301D1 (en)
ES (1) ES2116704T3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735419A (en) * 1996-02-16 1998-04-07 Crown Cork & Seal Company, Inc. Resealable plastic snap-fit closure with anti-tamper function
ITMO20060027A1 (en) * 2006-01-27 2007-07-28 Sacmi MEANS OF CLOSING
CN117326197B (en) * 2023-12-01 2024-02-06 烟台昌友玻璃科技有限公司 Anti-fake bottle cap

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9300042U1 (en) * 1992-01-08 1993-03-11 H. Obrist & Co Ag, Reinach Plastic threaded part for mounting on a tube neck

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2290364A1 (en) * 1974-11-08 1976-06-04 Astra Plastique Bottle stopper with safety ring - has ring held inside skirt of stopper by radial rim
FR2454977A1 (en) * 1979-04-27 1980-11-21 Astra Plastique IMPROVEMENTS ON GUARANTEE CAPPING CAPSULES
GB8623065D0 (en) * 1986-09-25 1986-10-29 Nat Plastics Ltd Guarantee band for container closure
FR2674823B1 (en) * 1991-04-02 1993-07-16 Astra Plastique SCREW CAP WITH INVIOLABILITY RING.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9300042U1 (en) * 1992-01-08 1993-03-11 H. Obrist & Co Ag, Reinach Plastic threaded part for mounting on a tube neck

Also Published As

Publication number Publication date
ATE166625T1 (en) 1998-06-15
ES2116704T3 (en) 1998-07-16
DE59502301D1 (en) 1998-07-02
EP0673849A1 (en) 1995-09-27

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