EP0755349A1 - Sealing cap with a guarantee strip - Google Patents

Sealing cap with a guarantee strip

Info

Publication number
EP0755349A1
EP0755349A1 EP96900822A EP96900822A EP0755349A1 EP 0755349 A1 EP0755349 A1 EP 0755349A1 EP 96900822 A EP96900822 A EP 96900822A EP 96900822 A EP96900822 A EP 96900822A EP 0755349 A1 EP0755349 A1 EP 0755349A1
Authority
EP
European Patent Office
Prior art keywords
cap
tongues
tongue
guarantee
tabs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96900822A
Other languages
German (de)
French (fr)
Other versions
EP0755349B1 (en
Inventor
Udo Bösl
Michael Kirchgessner
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.)
obrist Closures Switzerland
obrist Closures Switzerlandroemerstrasse 83 Ch 41
Original Assignee
Crown Cork 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 Crown Cork AG filed Critical Crown Cork AG
Publication of EP0755349A1 publication Critical patent/EP0755349A1/en
Application granted granted Critical
Publication of EP0755349B1 publication Critical patent/EP0755349B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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

Definitions

  • the invention relates to a closure cap with a tear-off guarantee band according to the preamble of claim 1.
  • closure caps With such closure caps, it can be seen from the condition of the guarantee band whether the container has already been opened.
  • the guarantee band engages under a bulge at the container mouth, so that it tears off at least partially when the container is opened for the first time.
  • Guarantee tapes are used particularly frequently in screw closures, in particular in screw caps for closing beverage containers. But also other types of caps, such as Snap locks can be provided with a tear-off guarantee band.
  • caps are generally used with a ring-shaped guarantee band which remains on the neck of the container after the container has been opened for the first time.
  • the guarantee band for closures of reusable containers is preferably connected to the cap wall in such a way that it only tears off partially when the container is opened and therefore always remains connected to the cap wall.
  • a shorter guarantee band is often used, which extends only over part of the circumference of the cap wall.
  • the tearable connection between the guarantee band and the cap wall can be designed in many different ways, which are widely documented in the relevant patent literature.
  • the guarantee band is particularly often connected to the lower edge of the cap wall by means of tear-off connecting webs.
  • Latching means are arranged on the inner surface of the guarantee band, which engage under a bulge at the container mouth when the closure cap is attached.
  • Locking elements rigidly connected to the guarantee band are often used for this purpose. When installing the cap, these locking elements are pressed radially outwards when they are pushed over the bead at the container mouth.
  • EP-A2 117 104 has therefore already proposed using tongues projecting radially inward from the inside of the guarantee band as latching means , which, when the cap is on, are directed upwards against the base of the cap and reach under the bulge at the mouth of the container. These tongues are only connected to the guarantee band at one end and their free end can be pivoted in the radial direction relative to the guarantee band.
  • tongues can therefore be pivoted outwards in the radial direction if they slide over the bead on the container mouth when the closure cap is installed for the first time.
  • the load on the guarantee band and its tear-off connection to the cap wall that occurs in this way can be substantially reduced.
  • a problem with the known tongues is their lack of strength, in particular the lack of pressure resistance in the longitudinal direction of the tongues. This load occurs when the cap is opened or when you try to pull the guarantee tape over the bead of the container mouth without tearing it off.
  • the known tongues are bent in their longitudinal direction, which means a reduced locking Effect of the tongues. In extreme cases, this can lead to the tongues leaving their locking position directed against the bulge of the container mouth and assuming a downward position away from the cap base. It is therefore an object of the invention to further improve the resilience of the already known tongues. According to the invention, this object is achieved by a closure cap having the features of claim 1.
  • the lateral edge regions of the tongues directed against the cap base are directed inwards in such a way that they are at least one point closer to the axis of the cap than the center of the tongue.
  • the surfaces of the tongues directed against the cap base facing the cap axis must have a curvature at least at one point, the radius of curvature of which is smaller than the distance between the tongue and the cap axis.
  • the tongues are preferably formed symmetrically to the middle of the tongue, particularly good results have been achieved with tongues folded symmetrically to the middle of the tongue. The previously mentioned curvature is also in the area of the middle of the tongue.
  • the resilience of the tongues is considerably increased by the curvature of the tongues.
  • the bending of the tongues which occurs when the load is applied in the longitudinal direction, in particular when the closure cap is opened, is greatly reduced by its curved shape.
  • the stability of the tongues can be further improved if the middle of the tongue is made thicker than the lateral edge regions of the tongues. Most of the forces acting on a tongue are then transmitted through the thicker tongue center. Since the center of the tongue is at a greater distance from the axis of the cap than its lateral edge regions, this has the additional advantage that the point of application of the main force is displaced radially outwards, in the vicinity of the guarantee band. This further reduces the bending load on the tongues.
  • the tongues are preferably designed in such a way that their end face directed against the bulge of the container mouth is inclined towards the cap axis. It is thereby achieved that the regions of this end face lying further inward in the radial sense are further down in the vertical direction and thus further away from the cap bottom than their regions lying further radially outward.
  • the radially outer area of the tongue bears against the bulge of the container mouth, whereas the radially inner part of the tongue lying further down lies against the container neck below the bulge.
  • the curved inner surface lies in two places, left and right of the middle of the tongue, on the outer surface of the container neck.
  • the end faces of the tongues are preferably inclined more towards the cap axis than a normal plane perpendicular to the neutral fiber of the respective tongue.
  • each of the tongues consists of a left and a right half of the tongue, which meet at an angle in the middle of the tongue. It is therefore a tongue folded symmetrically to the middle of the tongue.
  • the angle at which the two tongue halves meet in the middle is preferably approximately 120 °. But even if this angle is only slightly below the 180 ° limit, there is always a point to the left and right of the center of the tongue where its distance from the axis of the cap is smaller than in the area of the center of the tongue itself.
  • the tongue halves of the tongues directed against the base of the cap each have an inner surface directed towards the cap axis and an outer limiting surface directed against the guarantee band.
  • the tongue halves are preferably designed in such a way that their inner and outer boundary surfaces diverge towards the middle of the tongue at an angle of 5 ° to 30 °. This ensures that the middle of the tongue is thicker than the lateral edge areas of the tongue. This will the resilient effect of the tongues in the radial direction is additionally supported: if the tongues are pushed over the bulge of the container mouth during assembly of the closure cap, their thinner, lateral edge regions are initially in contact with the bulge. When the placement movement is continued, on the one hand the entire free end of the tongue is pivoted radially outwards, but in addition the tongue is also bent upwards and its thinner, lateral edge areas are also displaced outwards with respect to the middle of the tongue.
  • the tongues can be arranged along the guarantee band in different ways.
  • the distance between tongues arranged next to one another can be selected differently.
  • the tongues are arranged closely next to one another along the guarantee band.
  • the lateral edges of tongues arranged next to one another are connected to one another in an articulated manner by a flexible material bridge. This creates a longer tongue band consisting of several tongues. This ensures that the tongues hold each other in their position so that they can no longer be pivoted so easily.
  • the tongues then have to be pivoted inwards from their downward position. This is preferably done in a separate operation before the closure cap is put on.
  • the tongues generally have a tendency to return to their original, cast position.
  • One way of avoiding this is to connect tongues arranged next to one another, as has already been described above. The tongues then hold together sides in their inner position, directed against the cap bottom.
  • individual tongues arranged at a distance from one another are used, they can be fixed in another way in their position directed against the base of the cap, e.g. by briefly applying heat after the tongues have been pivoted into this position.
  • a possible alternative is to swivel the tongues inwards through the mouth of the container as soon as the cap is put on. However, this usually requires a specially designed container opening.
  • a circumferential guarantee ring is preferably used as the guarantee band, the tongues being arranged evenly distributed along the circumference of the guarantee rings.
  • FIG. 2 shows the guarantee band of the closure cap shown in FIG. 1 from above, according to level A-A in FIG. 1,
  • FIG. 3 shows the sectional view of the closure cap already shown in FIG. 1 with the tongues pointing downward
  • FIG. 4 shows the sectional view of a further closure cap with a plurality of tongues and spaced apart from one another
  • FIG. 5 shows a closure cap placed on a container mouth.
  • the closure cap shown in FIG. 1 has a cap base 1, a cap wall 2 adjoining it and a tear-off guarantee band 3 arranged at the lower edge of the cap wall.
  • the guarantee band 3 is connected in one piece to the cap wall 2 by means of predetermined breaking webs 4.
  • the guarantee band 3 shown here is a rotating guarantee ring. This is shown in FIG. 2 in a manner from above, according to the section plane AA drawn in FIG. 1.
  • a plurality of tongues 5 extend radially inward from the inner surface of the guarantee ring 3.
  • the tongues 5 shown here are arranged close to one another and connected by flexible material bridges 17 to form a circumferential inner tongue band. However, these connecting bridges 17 can also be dispensed with, so that tongues arranged next to one another are independent of one another.
  • the tongues 5 are connected to the guarantee ring 3 only at one end by an articulated connection 19.
  • This hinge connection 19 makes it possible to pivot the free end of the tongues 5 in the radial direction, so that it can move radially outwards in particular when the closure cap is put on for the first time if it slides over the bead on the container mouth.
  • the hinge connection 19 is preferably arranged at the lower edge of the guarantee ring, but in principle it would also be possible for the guarantee ring to extend downward beyond the connection point of the hinge connection 19.
  • a section through a tongue center is shown, whereas in the right half of FIG. 1, a section through the edge region of a tongue is shown.
  • This can also be seen from the sectional plane BB in FIG. 2.
  • the lateral edge regions 7 of the tongues 5 directed against the cap base 1 are directed inwards in such a way that their edge region is at a smaller distance 9 from the axis of the cap than the tongue center 8.
  • the lateral edge regions 7 are folded inwards symmetrically to the center of the tongue 8.
  • the tongues 5 are thus curved in the area of the middle 8 of the tongue, as a result of which the compressive strength of the tongues is significantly increased.
  • the tongue centers 8 are thicker than the lateral edge regions 7 of the tongues. This ensures that most of the forces acting on the tongues are transmitted through the middle of the tongue. This further increases the mechanical stability of the tongues.
  • the thinner edge regions 7 give the tongues an inherently resilient effect which additionally supports the resilient effect of the joint connection 19.
  • the lateral edge areas 7 of the tongues initially rest on the bulge of the container mouth. If the screwing-on movement is continued, the individual tongues 5 pivot one radially outward about their articulated connection 19.
  • the tongues 5 also have a resilient effect, the edge regions 7 of the tongues which bear against the bulge of the container mouth are pressed radially outward relative to the tongue centers 8.
  • the individual tongues each consist of two tongue halves 7a, 7b, each with an inner boundary surface 14 and an inner boundary surface 15.
  • the tongue halves meet in the middle at an angle ⁇ of approximately 120 °.
  • the boundary surfaces 14, 15 of the tongue halves diverge towards the middle of the tongue at an angle ( ⁇ ) of approximately 15 °, so that the middle of the tongue 8 is thicker than the lateral edge regions 7 of the tongues.
  • the end faces 11 of the tongues 5 directed against the cap base 1 are inclined at an angle ⁇ more than a normal plane 18 perpendicular to the neutral fiber 12 of the respective tongue towards the cap axis 13.
  • ⁇ the difference in height between the radially outer Tongue center 8 and the inward edge regions 7 of the tongues additionally reinforced. Because of this difference in height, the tongue center 8 rests on the underside of the bead 6 (FIG. 5) when the closure cap is attached.
  • the lateral edge regions 7 of the tongues 5 lie below the bead 6 on the outer surface 20 of the container neck.
  • FIG. 3 shows the closure cap already shown in FIG. 1 in a position with tongues 5a pointing downwards and away from the cap base.
  • the tongues are preferably cast in this position and then folded in a separate operation into their inner position directed against the base of the cap.
  • the tongues are arranged close to one another. After the tongues have been given away inwards, the tongues arranged closely next to one another can hold one another in this position. If the tongues were arranged at a greater distance from one another, they would have a tendency to return to their original downward position (produced by casting). This can be prevented particularly effectively if the lateral edges of tongues arranged next to one another are articulatedly connected to one another by a flexible material bridge 17 (FIG. 1).
  • FIG. 4 shows the sectional representation of an alternative variant, in which individual tongues are arranged at equal intervals along the circumference of the guarantee ring.
  • the tongues 5b can either be cast in the position shown or in a downward position analogous to FIG. 3, in which case they must first be folded inwards before the closure cap is installed.
  • a larger number of tongues is preferably used, which are then arranged correspondingly more densely, that is to say with smaller distances, distributed around the circumference.

Landscapes

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

Abstract

The invention concerns a sealing cap provided with a removable guarantee strip (3). Tabs (5) project radially inwards from the guarantee strip (3) towards the cap floor. The said tabs (5) grip underneath a peripheral bead (6) around the container mouth. To make the tabs stronger and more rigid, the side edge regions (7) of the tabs point inwards in such a way that at least one point of the tabs is closer to the cap axis than is the middle of the (8) tab. The end face (11) of the tabs (5) pointing towards the cap floor (1) is inclined towards the cap axis so that the force generated when the sealing cap is opened acts relatively far outside and in the middle of the tabs. The middle (8) of the tab is therefore preferably made thicker than the side edge regions (7).

Description

Verschlusskappe mit GarantiebandCap with guarantee band
Die Erfindung betrifft eine Verschlusskappe mit einem ab- reissbaren Garantieband gemäss dem Oberbegriff von Anspruch 1. Bei solchen Verschlusskappen lässt sich an dem Zustand des Garantiebands erkennen, ob der Behälter bereits einmal geöff¬ net wurde. Bei aufgesetzter Verschlusskappe untergreift das Garantieband einen Wulst an der Behältermündung, so dass es beim erstmaligen Oeffnen des Behälters wenigstens teilweise abreisst.The invention relates to a closure cap with a tear-off guarantee band according to the preamble of claim 1. With such closure caps, it can be seen from the condition of the guarantee band whether the container has already been opened. When the sealing cap is attached, the guarantee band engages under a bulge at the container mouth, so that it tears off at least partially when the container is opened for the first time.
Besonders häufig werden Garantiebänder bei Schraubverschlüs¬ sen verwendet, insbesondere bei Schraubkappen zum Verschlies- sen von Getränkebehältern. Aber auch andere Arten von Ver¬ schlusskappen, wie z.B. Schnappverschlüsse, können mit einem abreissbaren Garantieband versehen werden.Guarantee tapes are used particularly frequently in screw closures, in particular in screw caps for closing beverage containers. But also other types of caps, such as Snap locks can be provided with a tear-off guarantee band.
Zum Verschliessen von Einweg-Behältern werden in der Regel Verschlusskappen mit einem ringförmig umlaufenden Garantie¬ band verwendet, welches nach dem erstmaligen Oeffnen des Behälters auf dem Behälterhals verbleibt. Dagegen wird das Garantieband bei Verschlüssen von Mehrweg-Behältern bevorzugt derart mit der Kappenwand verbunden, dass es beim Oeffnen des Behälters nur teilweise abreisst und daher stets mit der Kappenwand verbunden bleibt. Bei dieser Variante wird auch häufig ein kürzeres Garantieband verwendet, dass sich nur über einen Teil des Umfangs der Kappenwand erstreckt.To close disposable containers, caps are generally used with a ring-shaped guarantee band which remains on the neck of the container after the container has been opened for the first time. On the other hand, the guarantee band for closures of reusable containers is preferably connected to the cap wall in such a way that it only tears off partially when the container is opened and therefore always remains connected to the cap wall. In this variant, a shorter guarantee band is often used, which extends only over part of the circumference of the cap wall.
Die abreissbare Verbindung zwischen dem Garantieband und der Kappenwand kann auf viele verschiedene Arten gestaltet wer¬ den, die in der einschlägigen Patentliteratur breit dokumen¬ tiert sind. Bei Verschlusskappen welche einstückig aus Kunst¬ stoff gefertigt werden, wird das Garantieband besonders häufig durch abreissbare Verbindungsstege mit dem unteren Rand der Kappenwand verbunden. An der Innenfläche des Garantiebands sind Rastmittel angeord¬ net, welche bei aufgesetzter Verschlusskappe einen Wulst an der Behältermündung untergreifen. Häufig werden dazu starr mit dem Garantieband verbundene Rastelemente verwendet. Bei der Montage der Verschlusskappe werden diese Rastelemente radial nach aussen gedrückt, wenn sie über den Wulst an der Behältermündung geschoben werden. Da die Rastelemente starr mit dem Garantieband verbunden sind, führt dies gleichzeitig zu einer Verformung des Garantiebands und somit zu einer Belastung der abreissbaren Verbindung zwischen dem Garan¬ tieband und der Kappenwand. Bei Schraubverschlüssen wird diese Belastung zusätzlich durch Schubkräfte zwischen der Kappenwand und dem durch die am Wulst der Behältermündung anliegenden Rastmittel gebremsten Garantiering verstärkt, in der EP-A2 117 104 wurde daher bereits vorgeschlagen, von der Innenseite des Garantiebands radial einwärts abstehende Zungen als Rastmittel zu verwenden, die bei aufgesetzter Verschlusskappe nach oben, gegen den Kappenboden gerichtet sind und den Wulst an der Behältermündung untergreifen. Diese Zungen sind lediglich an einem Ende mit dem Garantieband verbunden und ihr freies Ende ist in radialer Richtung rela¬ tiv zu dem Garantieband verschwenkbar. Diese Zungen können daher in radialer Richtung nach aussen geschwenkt werden, wenn sie bei der erstmaligen Montage der Verschlusskappe über den Wulst an der Behältermündung gleiten. Die dabei auftre¬ tende Belastung des Garantiebands und seiner abreissbaren Verbindung mit der Kappenwand kann so wesentlich reduziert werden.The tearable connection between the guarantee band and the cap wall can be designed in many different ways, which are widely documented in the relevant patent literature. In the case of sealing caps which are made in one piece from plastic, the guarantee band is particularly often connected to the lower edge of the cap wall by means of tear-off connecting webs. Latching means are arranged on the inner surface of the guarantee band, which engage under a bulge at the container mouth when the closure cap is attached. Locking elements rigidly connected to the guarantee band are often used for this purpose. When installing the cap, these locking elements are pressed radially outwards when they are pushed over the bead at the container mouth. Since the locking elements are rigidly connected to the guarantee band, this leads at the same time to a deformation of the guarantee band and thus to a load on the tear-off connection between the guarantee band and the cap wall. In the case of screw caps, this load is additionally increased by shear forces between the cap wall and the guarantee ring braked by the latching means resting on the bead of the container mouth; EP-A2 117 104 has therefore already proposed using tongues projecting radially inward from the inside of the guarantee band as latching means , which, when the cap is on, are directed upwards against the base of the cap and reach under the bulge at the mouth of the container. These tongues are only connected to the guarantee band at one end and their free end can be pivoted in the radial direction relative to the guarantee band. These tongues can therefore be pivoted outwards in the radial direction if they slide over the bead on the container mouth when the closure cap is installed for the first time. The load on the guarantee band and its tear-off connection to the cap wall that occurs in this way can be substantially reduced.
Ein Problem der bekannten Zungen ist ihre mangelnde Festig¬ keit, insbesondere die mangelnde Druck-Belastbarkeit in Längsrichtung der Zungen. Diese Belastung tritt beim Oeffnen der Verschlusskappe auf, oder auch bei dem Versuch, das Garantieband über den Wulst der Behältermündung zu ziehen ohne es abzureissen. Die bekannten Zungen werden dabei in ihrer Längsrichtung durchgebogen, was ein verminderte Sperr- Wirkung der Zungen zur Folge hat. Im Extremfall kann dies dazu führen, dass die Zungen ihre gegen den Wulst der Behäl¬ termündung gerichtete Verriegelungsstellung verlassen und eine nach unten, vom Kappenboden weggerichtete Lage einneh¬ men. Es ist daher eine Aufgabe der Erfindung, die Belast¬ barkeit der bereits bekannten Zungen weiter zu verbessern. Diese Aufgabe wird erfindungsgemäss durch eine Verschluss¬ kappe mit den Merkmalen von Anspruch 1 gelöst.A problem with the known tongues is their lack of strength, in particular the lack of pressure resistance in the longitudinal direction of the tongues. This load occurs when the cap is opened or when you try to pull the guarantee tape over the bead of the container mouth without tearing it off. The known tongues are bent in their longitudinal direction, which means a reduced locking Effect of the tongues. In extreme cases, this can lead to the tongues leaving their locking position directed against the bulge of the container mouth and assuming a downward position away from the cap base. It is therefore an object of the invention to further improve the resilience of the already known tongues. According to the invention, this object is achieved by a closure cap having the features of claim 1.
Die seitlichen Randbereiche der gegen den Kappenboden gerich¬ teten Zungen werden dazu derart einwärts gerichtet, dass sie an wenigstens einer Stelle einen geringeren Abstand zur Kappenachse aufweisen als die Zungenmitte. Dazu müssen die zur Kappenachse gerichteten Flächen der gegen den Kappenboden gerichteten Zungen an wenigstens einer Stelle eine Krümmung aufweisen, deren Krümmungsradius kleiner ist als der Abstand zwischen der Zunge und der Kappenachse. Bevorzugt werden die Zungen symmetrisch zur Zungenmitte ausgebildet, besonders gute Ergebnisse wurden mit symmetrisch zur Zungenmitte gefal¬ teten Zungen erreicht. Die zuvor angesprochene Krümmung befindet sich dabei ebenfalls im Bereich der Zungenmitte.For this purpose, the lateral edge regions of the tongues directed against the cap base are directed inwards in such a way that they are at least one point closer to the axis of the cap than the center of the tongue. For this purpose, the surfaces of the tongues directed against the cap base facing the cap axis must have a curvature at least at one point, the radius of curvature of which is smaller than the distance between the tongue and the cap axis. The tongues are preferably formed symmetrically to the middle of the tongue, particularly good results have been achieved with tongues folded symmetrically to the middle of the tongue. The previously mentioned curvature is also in the area of the middle of the tongue.
Durch die Krümmung der Zungen wird deren Belastbarkeit we¬ sentlich erhöht. Die bei Belastung in Längsrichtung, ins¬ besondere beim Oeffnen der Verschlusskappe auftretende Bie¬ gung der Zungen wird durch ihre gekrümmte Form stark ver¬ mindert. Die Stabilität der Zungen lässt sich weiter verbes¬ sern, wenn die Zungenmitte dicker als die seitlichen Randbe¬ reiche der Zungen ausgebildet werden. Der grösste Teil der auf eine Zunge einwirkenden Kräfte wird dann durch die dicke¬ re Zungenmitte übertragen. Da die Zungenmitte einen grösseren Abstand zur Kappenachse aufweist als ihre seitlichen Randbe¬ reiche hat dies den zusätzlichen Vorteil, dass der Angriffs¬ punkt der Hauptkraft radial nach aussen, in die Nähe des Garantiebands verlagert wird. Die Biegebelastung der Zungen wird dadurch weiter reduziert. Die Zungen werden bevorzugt so gestaltet, dass ihre gegen den Wulst der Behältermündung gerichtete Stirnfläche zur Kappen¬ achse hingeneigt ist. Damit wird erreicht, dass die in radia¬ lem Sinne weiter innen liegenden Bereiche dieser Stirnfläche in vertikaler Richtung weiter unten und somit weiter vom Kappenboden entfernt sind als ihre radial weiter aussen liegenden Bereiche. Bei aufgesetzter Verschlusskappe liegt somit der radial äussere Bereich der Zunge an dem Wulst der Behältermündung an, wogegen sich der weiter unten liegende, radial innere Teil der Zunge unterhalb des Wulsts an den Behälterhalε anlegt. Die gekrümmte Innenfläche liegt dabei an zwei Stellen, links und rechts von der Zungenmitte, an der Aussenflache des Behälterhalses an. Bevorzugt werden die Stirnflächen der Zungen stärker als eine senkrecht zu neutra¬ len Faser der jeweiligen Zunge stehende Normalebene zur Kappenachse hin geneigt.The resilience of the tongues is considerably increased by the curvature of the tongues. The bending of the tongues which occurs when the load is applied in the longitudinal direction, in particular when the closure cap is opened, is greatly reduced by its curved shape. The stability of the tongues can be further improved if the middle of the tongue is made thicker than the lateral edge regions of the tongues. Most of the forces acting on a tongue are then transmitted through the thicker tongue center. Since the center of the tongue is at a greater distance from the axis of the cap than its lateral edge regions, this has the additional advantage that the point of application of the main force is displaced radially outwards, in the vicinity of the guarantee band. This further reduces the bending load on the tongues. The tongues are preferably designed in such a way that their end face directed against the bulge of the container mouth is inclined towards the cap axis. It is thereby achieved that the regions of this end face lying further inward in the radial sense are further down in the vertical direction and thus further away from the cap bottom than their regions lying further radially outward. When the closure cap is attached, the radially outer area of the tongue bears against the bulge of the container mouth, whereas the radially inner part of the tongue lying further down lies against the container neck below the bulge. The curved inner surface lies in two places, left and right of the middle of the tongue, on the outer surface of the container neck. The end faces of the tongues are preferably inclined more towards the cap axis than a normal plane perpendicular to the neutral fiber of the respective tongue.
Bei einer bevorzugten AusführungsVariante besteht jede der Zungen aus einer linken und einer rechten Zungenhälfte, die in der Mitte der Zunge unter einem Winkel zusammentreffen.Es handelt sich somit um eine symmetrisch zur Zungenmitte gefal¬ tete Zunge. Der Winkel, unter dem die beiden Zungenhälften in der Mitte zusammentreffen beträgt vorzugsweise etwa 120°. Aber auch wenn dieser Winkel nur wenig unterhalb der 180°- Grenze liegt, gibt es immer eine Stelle links und rechts von der Zungenmitte, an der ihr Abstand zur Kappenachse kleiner als im Bereich der Zungenmitte selbst ist.In a preferred embodiment, each of the tongues consists of a left and a right half of the tongue, which meet at an angle in the middle of the tongue. It is therefore a tongue folded symmetrically to the middle of the tongue. The angle at which the two tongue halves meet in the middle is preferably approximately 120 °. But even if this angle is only slightly below the 180 ° limit, there is always a point to the left and right of the center of the tongue where its distance from the axis of the cap is smaller than in the area of the center of the tongue itself.
Die Zungenhälften der gegen den Kappenboden gerichteten Zungen haben je eine innere, zur Kappenachse gerichtete Fläche und eine äussere, gegen das Garantieband gerichtete Begrenzungεflache. Bevorzugt werden die Zungenhälften so gestaltet, dass ihre innere und äussere Begrenzungsfläche zur Zungenmitte hin unter einem Winkel von 5° bis 30° ausein¬ andergehen. Damit wird erreicht, dass die Zungenmitte dicker ist, als die seitlichen Randbereiche der Zunge. Dadurch wird die in radialer Richtung federnde Wirkung der Zungen zusätz¬ lich unterstützt: wenn die Zungen bei der Montage der Ver¬ schlusskappe über den Wulst der Behältermündung geschoben werden, so liegen zunächst ihre dünneren, seitlichen Randbe¬ reiche an dem Wulst an. Beim Fortsetzen der Aufsetzbewegung wird einerseits das gesamte freie Ende der Zunge radial nach aussen verschwenkt, daneben wird die Zunge jedoch auch in sich aufgebogen und ihre dünneren, seitlichen Randbereiche werden in Bezug auf die Zungenmitte ebenfalls nach aussen verlagert.The tongue halves of the tongues directed against the base of the cap each have an inner surface directed towards the cap axis and an outer limiting surface directed against the guarantee band. The tongue halves are preferably designed in such a way that their inner and outer boundary surfaces diverge towards the middle of the tongue at an angle of 5 ° to 30 °. This ensures that the middle of the tongue is thicker than the lateral edge areas of the tongue. This will the resilient effect of the tongues in the radial direction is additionally supported: if the tongues are pushed over the bulge of the container mouth during assembly of the closure cap, their thinner, lateral edge regions are initially in contact with the bulge. When the placement movement is continued, on the one hand the entire free end of the tongue is pivoted radially outwards, but in addition the tongue is also bent upwards and its thinner, lateral edge areas are also displaced outwards with respect to the middle of the tongue.
Die Zungen können auf unterschiedliche Weise entlang dem Garantieband angeordnet werden. Insbesondere kann der Abstand zwischen nebeneinander angeordneten Zungen unterschiedlich gewählt werden. Bei einer bevorzugten AusführungsVariante werden die Zungen entlang dem Garantieband dicht nebenein¬ ander angeordnet. Die seitlichen Ränder von nebeneinander angeordneten Zungen werden dabei durch eine flexible Mate¬ rialbrücke gelenkig miteinander verbunden. Auf diese Weise entsteht eine längeres, aus mehreren Zungen bestehendes Zungenband. Damit wird erreicht, dass sich die Zungen gegen¬ seitig in ihrer Position halten, so dass sie nicht mehr so leicht verschwenkt werden können. Dies ist von Vorteil, wenn die Verschlusskappe in einer Form gegossen wird, in der die Zungen nach unten, vom Kappenboden weggerichtet sind. Diese Position der Zungen wird zum Giessen der Verschlusskappe bevorzugt, da sich die Kappe nach dem Giessen besser entfor- en lässt. Die Zungen müssen jedoch anschliessend aus ihrer nach unten gerichteten Position nach innen verschwenkt wer¬ den. Dies geschieht vorzugsweise in einem separaten Arbeits¬ gang vor dem Aufsetzen der Verschlusskappe. Die Zungen haben jedoch grundsätzlich die Tendenz, wieder in ihre ursprüng¬ liche, gegossene Position zurückzukehren. Eine Möglichkeit um dies zu vermeiden, besteht nun darin, nebeneinander angordne¬ te Zungen miteinander zu verbinden, wie dies bereits vor¬ stehend beschrieben wurde. Die Zungen halten sich dann gegen- seitig in ihrer inneren, gegen den Kappenboden gerichteten Lage.The tongues can be arranged along the guarantee band in different ways. In particular, the distance between tongues arranged next to one another can be selected differently. In a preferred embodiment variant, the tongues are arranged closely next to one another along the guarantee band. The lateral edges of tongues arranged next to one another are connected to one another in an articulated manner by a flexible material bridge. This creates a longer tongue band consisting of several tongues. This ensures that the tongues hold each other in their position so that they can no longer be pivoted so easily. This is advantageous if the closure cap is cast in a mold in which the tongues are directed downwards away from the base of the cap. This position of the tongues is preferred for casting the closure cap, since the cap can be removed more easily after the casting. However, the tongues then have to be pivoted inwards from their downward position. This is preferably done in a separate operation before the closure cap is put on. However, the tongues generally have a tendency to return to their original, cast position. One way of avoiding this is to connect tongues arranged next to one another, as has already been described above. The tongues then hold together sides in their inner position, directed against the cap bottom.
Werden einzelne, im Abstand zueinander angeordnete Zungen verwendet, so können diese auf andere Art in ihrer gegen den Kappenboden gerichteten Position fixiert werden, z.B. durch kurzzeitige Wärmezufuhr nachdem die Zungen in diese Position geschwenkt wurden. Eine mögliche Alternative besteht darin, die Zungen direkt beim Aufsetzen der Verschlusskappe durch die Behältermündung nach innen zu verschwenken. Dazu ist jedoch in der Regel eine besonders gestaltete Behälterroündung erforderlich.If individual tongues arranged at a distance from one another are used, they can be fixed in another way in their position directed against the base of the cap, e.g. by briefly applying heat after the tongues have been pivoted into this position. A possible alternative is to swivel the tongues inwards through the mouth of the container as soon as the cap is put on. However, this usually requires a specially designed container opening.
Bevorzugt wird als Garantieband ein umlaufender Garantiering verwendet, wobei die Zungen gleichmässig entlang dem Umfang der Garantierings verteilt angeordnet sind.A circumferential guarantee ring is preferably used as the guarantee band, the tongues being arranged evenly distributed along the circumference of the guarantee rings.
Die Erfindung ist im folgenden anhand von Ausführungsbei- spielen näher erläutert. Es zeigen:The invention is explained in more detail below on the basis of exemplary embodiments. Show it:
Figur 1 die Schnittdarstellung einer erfindungsgemässen1 shows the sectional view of an inventive
Verschlusskappe gemäss Schnittebene B-B in Figur 2.Cap according to section plane B-B in Figure 2.
Figur 2 Das Garantieband der in Figur 1 dargestellten Ver¬ schlusskappe von oben, gemäss Ebene A-A in Figur 1,2 shows the guarantee band of the closure cap shown in FIG. 1 from above, according to level A-A in FIG. 1,
Figur 3 die Schnittdarstellung der bereits in Figur 1 ge¬ zeigten Verschlusskappe mit nach unten gerichteten Zungen,FIG. 3 shows the sectional view of the closure cap already shown in FIG. 1 with the tongues pointing downward,
Figur 4 die Schnittdarstellung einer weiteren Verschluss¬ kappe mit mehreren im Abstand voneinander angeord¬ neten Zungen undFIG. 4 shows the sectional view of a further closure cap with a plurality of tongues and spaced apart from one another
Figur 5 eine auf eine Behältermündung aufgesetzte Ver¬ schlusskappe. Die in Figur 1 dargestellte Verschlusskappe weist einen Kappenboden 1, eine daran anschliessende Kappenwand 2 und ein am unteren Rand der Kappenwand angeordnetes, abreissbares Garantieband 3 auf. Das Garantieband 3 ist durch Sollbruch¬ stege 4 einstückig mit der Kappenwand 2 verbunden. Bei dem hier gezeigten Garantieband 3 handelt es sich um einen um¬ laufenden Garantiering. Dieser ist in Figur 2 in einer an sich von oben, gemäss der in Figur 1 eingezeichneten Schnitt¬ ebene A-A dargestellt. Von der Innenfläche des Garantierings 3 erstrecken sich mehrere Zungen 5 radial einwärts. Die hier dargestellten Zungen 5 sind dicht nebeneinander angeordnet und durch flexible Materialbrücken 17 zu einem umlaufenden inneren Zungenband verbunden. Auf diese Verbindungsbrücken 17 kann jedoch auch verzichtet werden, so dass nebeneinander angeordnete Zungen voneinander unabhängig sind.FIG. 5 shows a closure cap placed on a container mouth. The closure cap shown in FIG. 1 has a cap base 1, a cap wall 2 adjoining it and a tear-off guarantee band 3 arranged at the lower edge of the cap wall. The guarantee band 3 is connected in one piece to the cap wall 2 by means of predetermined breaking webs 4. The guarantee band 3 shown here is a rotating guarantee ring. This is shown in FIG. 2 in a manner from above, according to the section plane AA drawn in FIG. 1. A plurality of tongues 5 extend radially inward from the inner surface of the guarantee ring 3. The tongues 5 shown here are arranged close to one another and connected by flexible material bridges 17 to form a circumferential inner tongue band. However, these connecting bridges 17 can also be dispensed with, so that tongues arranged next to one another are independent of one another.
Die Zungen 5 sind lediglich an einem Ende durch eine Gelenk¬ verbindung 19 mit dem Garantiering 3 verbunden. Diese Gelenk¬ verbindung 19 ermöglicht es, das freie Ende der Zungen 5 in radialer Richtung zu verschwenken, so dass dieses insbesonde¬ re beim erstmaligen Aufsetzen der Verschlusskappe radial nach aussen weichen kann, wenn es über den Wulst an der Behälter¬ mündung gleitet. Die Gelenkverbindung 19 wird bevorzugt am unteren Rand des Garantierings angeordnet, grundsätzlich wäre es jedoch auch möglich, dass sich der Garantiering über den Anschlusspunkt der Gelenkverbindung 19 hinaus nach unten erstreckt.The tongues 5 are connected to the guarantee ring 3 only at one end by an articulated connection 19. This hinge connection 19 makes it possible to pivot the free end of the tongues 5 in the radial direction, so that it can move radially outwards in particular when the closure cap is put on for the first time if it slides over the bead on the container mouth. The hinge connection 19 is preferably arranged at the lower edge of the guarantee ring, but in principle it would also be possible for the guarantee ring to extend downward beyond the connection point of the hinge connection 19.
In der linken Hälfte von Figur 1 ist ein Schnitt durch eine Zungenmitte dargestellt, wogegen in der rechten Hälfte der Figur 1 ein Schnitt durch den Randbereich einer Zunge gezeigt wird. Dies ist auch aus der Schnittebenen B-B in Figur 2 ersichtlich. Die seitlichen Randbereiche 7 der gegen den Kappenboden 1 gerichteten Zungen 5 sind derart einwärts gerichtet, dass sie in ihrem Randbereich einen geringeren Abstand 9 zur Kappenachse aufweisen als die Zungenmitte 8. Die seitlichen Randbereiche 7 sind dabei symmetrisch zur Zungenmitte 8 einwärts gefaltet. Die Zungen 5 sind somit im Bereich der Zungenmitte 8 gekrümmt, wodurch die Druckbelast¬ barkeit der Zungen wesentlich erhöht wird. Ausserdem sind die Zungenmitten 8 dicker als die seitlichen Randbereiche 7 der Zungen ausgebildet. Damit wird erreicht, dass der grösste Teil der auf die Zungen wirkenden Kräfte durch die Zungen¬ mitte übertragen wird. Die mechanische Stabilität der Zungen wird dadurch weiter erhöht.In the left half of FIG. 1, a section through a tongue center is shown, whereas in the right half of FIG. 1, a section through the edge region of a tongue is shown. This can also be seen from the sectional plane BB in FIG. 2. The lateral edge regions 7 of the tongues 5 directed against the cap base 1 are directed inwards in such a way that their edge region is at a smaller distance 9 from the axis of the cap than the tongue center 8. The lateral edge regions 7 are folded inwards symmetrically to the center of the tongue 8. The tongues 5 are thus curved in the area of the middle 8 of the tongue, as a result of which the compressive strength of the tongues is significantly increased. In addition, the tongue centers 8 are thicker than the lateral edge regions 7 of the tongues. This ensures that most of the forces acting on the tongues are transmitted through the middle of the tongue. This further increases the mechanical stability of the tongues.
Die dünneren Randbereiche 7 verleihen den Zungen eine in sich federnde Wirkung, welche die federnde Wirkung der Gelenkver¬ bindung 19 zusätzlich unterstützt. Beim erstmaligen Aufsetzen der Verschlusskappe liegen zunächst die seitlichen Randberei¬ che 7 der Zungen an dem Wulst der Behältermündung an. Wird die AufSchraubbewegung fortgesetzt, so verschwenken die einzelnen Zungen 5 einersetis um ihre Gelenkverbindung 19 radial nach aussen. Zusätzlich haben die Zungen 5 jedoch auch eine in sich federnde Wirkung, die am Wulst der Behältermün¬ dung anliegenden Randbereiche 7 der Zungen werden relativ zu den Zungenmitten 8 radial nach aussen gedrückt.The thinner edge regions 7 give the tongues an inherently resilient effect which additionally supports the resilient effect of the joint connection 19. When the closure cap is put on for the first time, the lateral edge areas 7 of the tongues initially rest on the bulge of the container mouth. If the screwing-on movement is continued, the individual tongues 5 pivot one radially outward about their articulated connection 19. In addition, however, the tongues 5 also have a resilient effect, the edge regions 7 of the tongues which bear against the bulge of the container mouth are pressed radially outward relative to the tongue centers 8.
Die einzelnen Zungen bestehen aus je zwei Zungenhälften 7a, 7b, mit je einer inneren Begrenzungsfläche 14 und einer inneren Begrenzungsfläche 15. Die Zungenhälften treffen in der Mitte unter einem Winkel ß von ca. 120° zusammen. Die Be¬ grenzungsflächen 14, 15 der Zungenhälften gehen zur Zungen¬ mitte hin unter einem Winkel (γ) von ca. 15° auseinander, so dass die Zungenmitte 8 dicker als die seitlichen Randbereiche 7 der Zungen ist.The individual tongues each consist of two tongue halves 7a, 7b, each with an inner boundary surface 14 and an inner boundary surface 15. The tongue halves meet in the middle at an angle β of approximately 120 °. The boundary surfaces 14, 15 of the tongue halves diverge towards the middle of the tongue at an angle (γ) of approximately 15 °, so that the middle of the tongue 8 is thicker than the lateral edge regions 7 of the tongues.
Die gegen den Kappenboden 1 gerichteten Stirnflächen 11 der Zungen 5 sind um einen Winkel α stärker als eine senkrecht zur neutralen Faser 12 der jeweiligen Zunge stehende Normal¬ ebene 18 zur Kappenachse 13 hin geneigt. Dadurch wird der Höhenunterschied zwischen der radial weiter aussen liegenden Zungenmitte 8 und den einwärts gerichteten Randbereichen 7 der Zungen zusätzlich verstärkt. Aufgrund dieses Höhenunter¬ schieds liegt bei aufgesetzter Verschlusskappe die Zungen¬ mitte 8 an der Unterseite des Wulsts 6 (Figur 5) an. Dagegen liegen die seitlichen Randbereiche 7 der Zungen 5 unterhalb des Wulsts 6 an der Aussenflache 20 des Behälterhalses an.The end faces 11 of the tongues 5 directed against the cap base 1 are inclined at an angle α more than a normal plane 18 perpendicular to the neutral fiber 12 of the respective tongue towards the cap axis 13. As a result, the difference in height between the radially outer Tongue center 8 and the inward edge regions 7 of the tongues additionally reinforced. Because of this difference in height, the tongue center 8 rests on the underside of the bead 6 (FIG. 5) when the closure cap is attached. In contrast, the lateral edge regions 7 of the tongues 5 lie below the bead 6 on the outer surface 20 of the container neck.
Figur 3 zeigt die bereits in Figur 1 dargestellte Verschlusε- kappe in einer Position mit nach unten, vom Kappenboden weggerichteten Zungen 5a. Die Zungen werden bevorzugt in dieser Position gegossen und anschliessend in einem separaten Arbeitsgang in ihre innere, gegen den Kappenboden gerichtete Position gefaltet. In diesem Zusammenhang ist es von Vorteil, wenn die Zungen, wie in diesem Beispiel gezeigt, dicht neben¬ einander angeordnet sind. Nachdem die Zungen nach innen verschenkt wurden, können sich die dicht nebeneinander an¬ geordneten Zungen gegenseitig in dieser Position halten. Wären die Zungen auf grösserem Abstand zueinander angeordnet, so hätten sie die Tendenz, wieder in ihre ursprüngliche (durch Giessen erzeugte), nach unten gerichtete Position zurückzukehren. Besonders wirksam lässt sich dies verhindern, wenn die seitlichen Ränder von nebeneinander angordneten Zungen durch eine flexible Materialbrücke 17 (Figur 1) ge¬ lenkig miteinander verbunden sind.FIG. 3 shows the closure cap already shown in FIG. 1 in a position with tongues 5a pointing downwards and away from the cap base. The tongues are preferably cast in this position and then folded in a separate operation into their inner position directed against the base of the cap. In this context, it is advantageous if the tongues, as shown in this example, are arranged close to one another. After the tongues have been given away inwards, the tongues arranged closely next to one another can hold one another in this position. If the tongues were arranged at a greater distance from one another, they would have a tendency to return to their original downward position (produced by casting). This can be prevented particularly effectively if the lateral edges of tongues arranged next to one another are articulatedly connected to one another by a flexible material bridge 17 (FIG. 1).
Figur 4 zeigt die Schnittdarstellung einer alternativen Variante, bei der einzelne Zungen mit gleichen Abständen entlang dem Umfang des Garantierings verteilt angeordnet sind. Für die grundsätzliche Funktion und Wirkung dieser Zunge gilt auch hier dasselbe wie für die in Figur 1 gezeig¬ ten, miteinander verbunden Zungen. Die Zungen 5b können entweder in der gezeigten Position oder in einer analog zu Figur 3 nach unten gerichteten Position gegossen werden, wobei sie dann vor der Montage der Verschlusskappe zunächst nach innen gefaltet werden müssen. Bei dem hier dargestellten Beispiel sind lediglich sechs Zungen entlang dem Umfang des Garantiebands verteilt angeordnet. Bevorzugt wird jedoch eine grössere Anzahl von Zungen verwendet, die dann entsprechend dichter, das heisst mit kleineren Abständen, entlang dem Umfang verteilt angeordnet werden. FIG. 4 shows the sectional representation of an alternative variant, in which individual tongues are arranged at equal intervals along the circumference of the guarantee ring. For the basic function and effect of this tongue, the same applies here as for the tongues shown in FIG. 1 which are connected to one another. The tongues 5b can either be cast in the position shown or in a downward position analogous to FIG. 3, in which case they must first be folded inwards before the closure cap is installed. In the example shown here, there are only six tongues along the circumference of the Guarantee band distributed. However, a larger number of tongues is preferably used, which are then arranged correspondingly more densely, that is to say with smaller distances, distributed around the circumference.

Claims

Patentansprüche claims
1. Verschlusskappe zum Verschliessen einer Behältermündung mit einem Kappenboden (1) und einer daran anschliessen- den Kappenwand (2), an deren unterem Rand ein abreiss- bares Garantieband (3) angeordnet ist, und mit mehreren von der Innenfläche des Garantiebandes radial einwärts abstehenden Zungen (5), die bei aufgesetzter Verschluss¬ kappe nach oben, gegen den Kappenboden (1) gerichtet sind um einen Wulst (6) an der Behältermündung zu unter¬ greifen, dadurch gekennzeichnet, dass die seitlichen Randbereiche (7) der gegen den Kappenboden (1) gerichte¬ ten Zungen (5) derart einwärts gerichtet sind, dass sie an wenigstens einer Stelle einen geringeren Abstand (9) zu Kappenachse aufweisen als die Zungenmitte (8).1. Sealing cap for closing a container mouth with a cap base (1) and an adjoining cap wall (2), on the lower edge of which a tear-off guarantee band (3) is arranged, and with several protruding radially inwards from the inner surface of the guarantee band Tongues (5) which, when the closure cap is in place, are directed upwards against the cap base (1) in order to engage under a bulge (6) at the mouth of the container, characterized in that the lateral edge regions (7) face those against the cap base (1) directed tongues (5) are directed inwards in such a way that they are at a smaller distance (9) from the axis of the cap than the center of the tongue (8) at at least one point.
2. Verschlusskappe nach Anspruch 1, dadurch gekennzeichnet, dass die Zungenmitten (8) dicker als die seitlichen Randbereiche (7) der Zungen sind.2. Cap according to claim 1, characterized in that the tongue centers (8) are thicker than the lateral edge regions (7) of the tongues.
3. Verschlusskappe nach einem der Ansprüche 1 oder 2, da¬ durch gekennzeichnet, dass die bei aufgesetzter Ver¬ schlusskappe gegen den Wulst (6) der Behältermündung gerichteten Stirnflächen (11) der Zungen (5) stärker als eine senkrecht zur neutralen Faser (12) der jeweiligen Zunge stehende Normalebene (18) zur Kappenachse (13) hin geneigt sind.3. A closure cap according to one of claims 1 or 2, characterized in that the end faces (11) of the tongues (5) directed against the bead (6) of the container mouth when the closure cap is attached are stronger than a perpendicular to the neutral fiber (12 ) of the respective tongue normal plane (18) are inclined towards the cap axis (13).
4. Verschlusskappe nach einem der Ansprüche 1 bis 3, da¬ durch gekennzeichnet, dass jede der Zungen (5) eine linke und eine rechte Zungenhälfte (7a, 7b) aufweist, deren Oberflächen in der Mitte (8) der Zunge unter einem Winkel (ß) zusammentreffen.4. Cap according to one of claims 1 to 3, characterized in that each of the tongues (5) has a left and a right tongue half (7a, 7b), the surfaces of which in the middle (8) of the tongue at an angle ( ß) meet.
5. Verschlusskappe nach Anspruch 4, dadurch gekennzeichnet, dass die Oberflächen der Zungenhälften (7a, 7b) unter einem stumpfen Winkel (ß) vorzugsweise einem Winkel von etwa 120° zueinander angeordnet sind.5. Cap according to claim 4, characterized in that the surfaces of the tongue halves (7a, 7b) under an obtuse angle (β) are preferably arranged at an angle of approximately 120 ° to one another.
6. Verschlusskappe nach einem der Ansprüche 4 oder 5, da¬ durch gekennzeichnet, dass die innere und äussere Be¬ grenzungsfläche (14, 15) jeder Zungenhälfte (7a, 7b) zur Zungenmitte hin unter einem Winkel (γ) von 5° bis 30° auseinandergehen, so dass die Zungenmitte (8) dicker ist als die seitlichen Randbereiche (7) der Zunge.6. Cap according to one of claims 4 or 5, characterized in that the inner and outer boundary surface (14, 15) of each tongue half (7a, 7b) towards the middle of the tongue at an angle (γ) of 5 ° to 30 ° diverge so that the middle of the tongue (8) is thicker than the lateral edge areas (7) of the tongue.
7. Verschlusskappe nach einem der Ansprüche 1 bis 6, da¬ durch gekennzeichnet, dass Zungen (5) entlang dem Garan¬ tieband (3) dicht nebeneinander angeordnet sind und die seitlichen Ränder (16) von nebeneinander angeordneten Zungen durch eine flexible Materialbrücke (17) gelenkig miteinander verbunden sind.7. Cap according to one of claims 1 to 6, characterized in that tongues (5) along the guarantee band (3) are arranged closely next to one another and the lateral edges (16) of tongues arranged next to one another by a flexible material bridge (17th ) are articulated together.
8. Verschlusskappe nach einem der Ansprüche 1 bis 7, da¬ durch gekennzeichnet, dass das Garantieband (3) ein umlaufender Garantiering ist und die Zungen (5) gleich- massig entlang dem Umfang des Garantierings verteilt angeordnet sind. 8. Cap according to one of claims 1 to 7, characterized in that the guarantee band (3) is a circumferential guarantee ring and the tongues (5) are arranged uniformly distributed along the circumference of the guarantee ring.
EP96900822A 1995-02-10 1996-02-01 Sealing cap with a guarantee strip Expired - Lifetime EP0755349B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH39595 1995-02-10
CH395/95 1995-02-10
CH39595 1995-02-10
PCT/CH1996/000039 WO1996024532A1 (en) 1995-02-10 1996-02-01 Sealing cap with a guarantee strip

Publications (2)

Publication Number Publication Date
EP0755349A1 true EP0755349A1 (en) 1997-01-29
EP0755349B1 EP0755349B1 (en) 1999-11-03

Family

ID=4186042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96900822A Expired - Lifetime EP0755349B1 (en) 1995-02-10 1996-02-01 Sealing cap with a guarantee strip

Country Status (22)

Country Link
US (1) US5775527A (en)
EP (1) EP0755349B1 (en)
JP (1) JPH09511726A (en)
KR (1) KR970701656A (en)
CN (1) CN1065495C (en)
AR (1) AR002031A1 (en)
AT (1) ATE186271T1 (en)
AU (1) AU697765B2 (en)
BR (1) BR9605122A (en)
CA (1) CA2184740C (en)
CO (1) CO4480783A1 (en)
DE (1) DE59603540D1 (en)
ES (1) ES2139328T3 (en)
GR (1) GR3031842T3 (en)
HU (1) HU219295B (en)
IL (1) IL116936A (en)
PL (1) PL180131B1 (en)
RU (1) RU2129511C1 (en)
SA (1) SA96160677B1 (en)
TR (1) TR199600721T1 (en)
WO (1) WO1996024532A1 (en)
ZA (1) ZA961047B (en)

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JP4663203B2 (en) * 2002-03-19 2011-04-06 日本クラウンコルク株式会社 Resin cap with excellent cleanability
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Also Published As

Publication number Publication date
HUP9602776A2 (en) 1997-05-28
DE59603540D1 (en) 1999-12-09
JPH09511726A (en) 1997-11-25
PL316728A1 (en) 1997-02-03
ES2139328T3 (en) 2000-02-01
CN1146756A (en) 1997-04-02
US5775527A (en) 1998-07-07
ZA961047B (en) 1996-08-29
IL116936A0 (en) 1996-05-14
HUP9602776A3 (en) 2000-02-28
TR199600721T1 (en) 1997-03-21
HU9602776D0 (en) 1996-11-28
GR3031842T3 (en) 2000-02-29
CO4480783A1 (en) 1997-07-09
WO1996024532A1 (en) 1996-08-15
SA96160677B1 (en) 2006-03-06
AU4479896A (en) 1996-08-27
CA2184740A1 (en) 1996-08-15
MX9604678A (en) 1997-09-30
AR002031A1 (en) 1998-01-07
BR9605122A (en) 1997-10-14
EP0755349B1 (en) 1999-11-03
PL180131B1 (en) 2000-12-29
AU697765B2 (en) 1998-10-15
CN1065495C (en) 2001-05-09
CA2184740C (en) 2007-01-30
IL116936A (en) 1998-12-06
HU219295B (en) 2001-03-28
RU2129511C1 (en) 1999-04-27
ATE186271T1 (en) 1999-11-15
KR970701656A (en) 1997-04-12

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