EP1404582B1 - Closing lower part with a retaining rib - Google Patents

Closing lower part with a retaining rib Download PDF

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Publication number
EP1404582B1
EP1404582B1 EP02758058A EP02758058A EP1404582B1 EP 1404582 B1 EP1404582 B1 EP 1404582B1 EP 02758058 A EP02758058 A EP 02758058A EP 02758058 A EP02758058 A EP 02758058A EP 1404582 B1 EP1404582 B1 EP 1404582B1
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EP
European Patent Office
Prior art keywords
closure
webs
underpart
tubular sleeve
vis
Prior art date
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Expired - Fee Related
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EP02758058A
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German (de)
French (fr)
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EP1404582A1 (en
Inventor
Günter Jakob KRAUTKRÄMER
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Bericap GmbH and Co KG
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Bericap GmbH and Co KG
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Publication of EP1404582A1 publication Critical patent/EP1404582A1/en
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    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container

Definitions

  • the present invention relates to a closure bottom with a pipe socket and a arranged on the outside of the pipe socket mounting flange, wherein at least one projection on the inside of the pipe socket is provided, which serves to hold the closure member when mounted on a container wall on a mandrel.
  • Corresponding closure bottoms have long been known and they are mainly used for plastic closures of cardboard packaging, eg. As for drinks or the like, in which the closure or the closure part is generally passed from the (later) container inside through an opening in the wall of the container, wherein the closure flange with the inner surface of the container wall into contact and then with this welded or glued.
  • the projection is designed as an annular circumferential bead or lip along the lower inner edge of the pipe socket.
  • a plurality of separate, bead-like projections are provided, which are distributed over the circumference of the pipe socket on the inside and in the vicinity of the lower inner edge.
  • closures have different sizes, and the mandrels must be changed to hold these closures, because a given closure size can hold only with a suitably matched mandrel, with little tolerance margin, on the one hand holding and transporting the closure base on a mandrel on the other hand, but also to be able to easily release the mandrel from the assembled closure again.
  • closure seals are provided on many such closures, which completely cover the cross-section of the pipe socket, so that only a relatively short section of the pipe socket for holding by a corresponding mandrel is available below the closure seal.
  • the present invention seeks to provide a corresponding closure lower part, which can be held with a much larger tolerance margin on a mandrel.
  • the at least one projection has the shape of a wegbiegbaren web, which is inclined relative to the inner wall of the nozzle at an angle which is smaller than 90 ° and greater than 0 °.
  • deflectable webs are provided opposite to each other the inner wall of the nozzle inclined at an angle which is smaller than 90 ° and greater than 0 °. This effectively means that a much greater elastic path of movement is available by the bending away of the webs, as it was usually possible by the compression or radial expansion of the corresponding material.
  • the webs are inclined relative to the pipe stub wall (more precisely opposite a tangent to the pipe stub wall) at an angle between 20 ° and 70 °, with an angle in the range of about 45 ° being most preferred.
  • the webs may be substantially parallel to the axis, ie they are connected along a substantially axis-parallel line with the inner wall of the pipe socket and they are designed as short flat webs or plates, the plane of this Platelets or webs also runs parallel to the axis of the pipe socket.
  • the webs are connected along a line inclined to the axis with the wall of the pipe socket, z. B. along a diagonal line or along a line extending in the circumferential direction. The inclination of the webs relative to the wall of the cavity is then best determined in a plane which runs perpendicular to the attachment line of the web to the wall.
  • these webs should extend only over relatively narrow angle ranges of less than 60 ° and preferably less than 30 °, in particular with only extending in the circumferential direction webs. Namely, if the webs extend over a larger angular range, they get by the curvature of a greater rigidity and are therefore not so easy weggebegbar.
  • the webs when circumferentially extending over relatively short portions only, or when mounted along an axial line on the pipe socket, are relatively easy to move, they may also be provided with a greater length (measured perpendicular to their line of attachment) , so that also due to this fact, a larger path of movement for capturing tolerances for the webs is available.
  • several, e.g. B. three corresponding webs and preferably at least six webs are provided, which are advantageously distributed at equidistant angular intervals along the circumference of the pipe socket, preferably along the lower end portion of the pipe socket.
  • FIG. 1 the axial section through a closure lower part 1, consisting of a pipe socket 2 with external thread 5 and at the lower end of the pipe socket 2 attaching externally mounting flange 3.
  • a closure seal which is arranged in the interior of the pipe socket 2 and its cross section closes.
  • a total of three projections in the form of short webs 4, which, which in FIG. 2 is better visible, relative to the wall of the pipe socket 2 are inclined.
  • a short mandrel is introduced from below into the pipe socket 2, whose diameter is slightly smaller than the inner diameter of the pipe socket 2, wherein the webs 4 bent away, i. be pressed in the direction of the pipe socket wall, so that on the elastic restoring force of the webs 4, the closure lower part 1 is securely held on the mandrel.
  • the closure bottom is then using this mandrel to the inner wall of a container, for.
  • a Kartonverpakkung introduced, which has a corresponding opening for receiving the pipe socket 2.
  • the pipe socket 2 is passed from the inside through this opening, wherein the flange 3 rests against the container inner wall and is welded or glued thereto.
  • FIG. 2 can be seen in a view from below both the closure flange and the (dashed lines indicated) wall of the pipe socket, from which a total of six projections in the form of narrow webs or lobes extend, which are inclined relative to the wall of the pipe socket 2. This becomes even more visible in the cropping magnification FIG. 2 , in the FIG. 3 is shown.
  • the length of the webs 4, measured from the point of attachment to the pipe socket wall to the free end, is between 0.5 and 1.5 mm and the thickness of these webs is suitably between 0.3 and 0.6 mm.
  • the angle ⁇ is in the preferred embodiment about 45 °, but can be selected smaller or larger if necessary, if z. B. larger tolerance deviations should be collected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cartons (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Making Paper Articles (AREA)

Description

Die vorliegende Erfindung betrifft ein Verschlußunterteil mit einem Rohrstutzen und einem auf der Außenseite des Rohrstutzens angeordneten Befestigungsflansch, wobei mindestens ein Vorsprung auf der Innenseite des Rohrstutzens vorgesehen ist, der dazu dient, das Verschlußunterteil beim Befestigen an einer Behälterwand auf einem Dorn zu halten.The present invention relates to a closure bottom with a pipe socket and a arranged on the outside of the pipe socket mounting flange, wherein at least one projection on the inside of the pipe socket is provided, which serves to hold the closure member when mounted on a container wall on a mandrel.

Entsprechende Verschlußunterteile sind seit längerem bekannt und sie werden vor allem verwendet für Kunststoffverschlüsse von Kartonverpackungen, z. B. für Getränke oder dergleichen, bei welchen der Verschluß bzw. das Verschlußunterteil im allgemeinen von der (späteren) Behälterinnenseite her durch eine Öffnung in der Wand des Behälters hindurchgeführt wird, wobei der Verschlußflansch mit der Innenfläche der Behälterwand in Berührung kommt und dann mit dieser verschweißt oder verklebt wird.Corresponding closure bottoms have long been known and they are mainly used for plastic closures of cardboard packaging, eg. As for drinks or the like, in which the closure or the closure part is generally passed from the (later) container inside through an opening in the wall of the container, wherein the closure flange with the inner surface of the container wall into contact and then with this welded or glued.

Für diese Montage, die Aufnahme der Verschlüsse und den Transport derselben werden im allgemeinen "Dome" eingesetzt, die in das Innere des Rohrstutzens hineinpassen und dabei mit den einwärts ragenden Vorsprüngen zumeist in mehr oder weniger starken Reibeingriff treten.For this assembly, the inclusion of the closures and the transport of the same "dome" are generally used, which fit into the interior of the pipe socket and thereby occur with the inwardly projecting projections mostly in more or less strong frictional engagement.

Es versteht sich, daß die entsprechenden Dorne auf den Innendurchmesser der entsprechenden Verschlußunterteile oder genauer gesagt auf den durch die Vorsprünge definierten Durchmesser abgestimmt sein müssen, um einerseits ein Verschlußunterteil vor und während der Montage sicher zu halten, andererseits aber auch leicht wieder aus dem montierten Verschlußunterteil entfernt werden zu können. US 6 085 489 zeigt derartige Dornen und Verschlußunterteile.It is understood that the corresponding mandrels must be matched to the inner diameter of the corresponding closure bottom parts or more precisely to the diameter defined by the projections, on the one hand to keep a closure lower part before and during assembly safe, on the other hand, but also easily from the assembled closure lower part to be removed. US Pat. No. 6,085,489 shows such thorns and closure bottoms.

Bekannt ist dabei bereits eine Ausgestaltung, bei welcher der Vorsprung als ringförmig umlaufender Wulst bzw. Lippe entlang der unteren Innenkante des Rohrstutzens ausgebildet ist. Bei einer anderen Ausführungsform sind mehrere getrennte, wulstartige Vorsprünge vorgesehen, die über den Umfang des Rohrstutzens auf dessen Innenseite und in der Nähe der unteren Innenkante verteilt sind.In this case, an embodiment is already known in which the projection is designed as an annular circumferential bead or lip along the lower inner edge of the pipe socket. In another embodiment, a plurality of separate, bead-like projections are provided, which are distributed over the circumference of the pipe socket on the inside and in the vicinity of the lower inner edge.

Wenn entsprechende Verschlüsse unterschiedliche Größe haben, müssen auch die Dorne zur Halterung dieser Verschlüsse gewechselt werden, weil sich eine gegebene Verschlußgröße nur mit einem passend darauf abgestimmten Dorn halten läßt, wobei nur wenig Toleranzspielraum besteht, um einerseits das Halten und Transportieren des Verschlußunterteils auf einem Dorn sicherzustellen, andererseits aber auch den Dorn wieder leicht aus dem montierten Verschluß lösen zu können.If appropriate closures have different sizes, and the mandrels must be changed to hold these closures, because a given closure size can hold only with a suitably matched mandrel, with little tolerance margin, on the one hand holding and transporting the closure base on a mandrel on the other hand, but also to be able to easily release the mandrel from the assembled closure again.

Der Wechsel der Dorne für die Anpassung an unterschiedliche Verschlußgrößen ist relativ zeitaufwendig und lästig und setzt die Produktivität bei der Herstellung bzw. Anbringung derartiger Verschlüsse deutlich herab. Auch geringfügige Toleranzen bei der Herstellung ein- und desselben Verschlußtyps können bereits zu Fehlfunktionen bei der Montage führen, da der Verschluß dann entweder zu leicht von dem Dorn abgleitet oder zu stramm auf dem Dorn gehalten wird.The change of the mandrels for adaptation to different closure sizes is relatively time-consuming and annoying and significantly reduces the productivity in the production or attachment of such closures. Even slight tolerances in the production of one and the same type of closure can already lead to malfunction during assembly, since the closure then either too easily slides off the mandrel or is held too tightly on the mandrel.

Dieses Problem verschärft sich noch dadurch, daß an vielen derartigen Verschlüssen Verschlußsiegel vorgesehen sind, welche den Querschnitt des Rohrstutzens vollständig verdecken, so daß unterhalb des Verschlußsiegels nur ein relativ kurzer Abschnitt des Rohrstutzens für die Halterung durch einen entsprechenden Dorn zur Verfügung steht.This problem is exacerbated by the fact that closure seals are provided on many such closures, which completely cover the cross-section of the pipe socket, so that only a relatively short section of the pipe socket for holding by a corresponding mandrel is available below the closure seal.

Gegenüber diesem Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein entsprechendes Verschlußunterteil zu schaffen, welches mit einem wesentlich größeren Toleranzspielraum auf einem Dorn gehalten werden kann.Compared to this prior art, the present invention seeks to provide a corresponding closure lower part, which can be held with a much larger tolerance margin on a mandrel.

Diese Aufgabe wird dadurch gelöst, daß der mindestens eine Vorsprung die Form eines wegbiegbaren Steges hat, der gegenüber der Innenwand des Stutzens unter einem Winkel geneigt verläuft, der kleiner als 90° und größer als 0° ist.This object is achieved in that the at least one projection has the shape of a wegbiegbaren web, which is inclined relative to the inner wall of the nozzle at an angle which is smaller than 90 ° and greater than 0 °.

Während herkömmlich die Vorsprünge durch den Eingriff mit einem Dorn in radialer Richtung komprimiert bzw. der durch die Vorsprünge definierte Durchmesser durch Zusammendrücken des Materials selbst aufgeweitet wurde, sind gemäß der vorliegenden Erfindung anstelle der relativ starren und nur elastisch zusammendrückbaren Vorsprünge wegbiegbare Stege vorgesehen, die gegenüber der Innenwand des Stutzens um einen Winkel geneigt verlaufen, der kleiner als 90° und größer als 0° ist. Dies bedeutet effektiv, daß ein wesentlich größerer elastischer Bewegungsweg durch das Wegbiegen der Stege zur Verfügung steht, als er üblicherweise durch das Zusammendrücken bzw. radiale Aufweiten des entsprechenden Materials möglich war. Demzufolge können mit dem erfindungsgemäßen Vorsprung in Form eines wegbiegbaren, zur Rohrstutzenwand geneigt verlaufenden Steges wesentlich größere Toleranzabweichungen des Dorndurchmessers gegenüber dem Rohrstutzendurchmesser aufgefangen werden, so daß auch bei unterschiedlichen Verschlußtypen mit leicht unterschiedlichen Rohrstutzendurchmessern dennoch ein und derselbe Dorn verwendet werden kann, um das Verschlußunterteil zu halten und zu montieren.Conventionally, while the protrusions were radially compressed by the engagement with a mandrel or the diameter defined by the protrusions was expanded by compressing the material itself, according to the present invention, instead of the relatively rigid and elastically compressible protrusions, deflectable webs are provided opposite to each other the inner wall of the nozzle inclined at an angle which is smaller than 90 ° and greater than 0 °. This effectively means that a much greater elastic path of movement is available by the bending away of the webs, as it was usually possible by the compression or radial expansion of the corresponding material. Accordingly, with the projection according to the invention in the form of wegbiegbaren, inclined to the pipe socket wall extending significantly larger tolerance deviations of the mandrel diameter compared to the pipe socket diameter can be collected so that even with different types of closure with slightly different pipe socket diameters yet one and the same mandrel can be used to the closure bottom to hold and assemble.

Zweckmäßigerweise verlaufen die Stege gegenüber der Rohrstutzenwand (genauer gesagt gegenüber einer Tangente an die Rohrstutzenwand) um einen Winkel zwischen 20° und 70° geneigt, wobei ein Winkel im Bereich von etwa 45° am meisten bevorzugt ist. Im übrigen können die Stege in der bevorzugten Ausführungsform der Erfindung im wesentlichen achsparallel verlaufen, d.h. sie sind entlang einer im wesentlichen achsparallelen Linie mit der Innenwand des Rohrstutzens verbunden und sie sind als kurze ebene Stege bzw. Plättchen ausgebildet, wobei die Ebene dieser Plättchen oder Stege ebenfalls parallel zu der Achse des Rohrstutzens verläuft. Grundsätzlich ist es aber auch möglich, daß die Stege entlang einer zur Achse geneigten Linie mit der Wand des Rohrstutzens verbunden sind, z. B. entlang einer diagonal verlaufenden Linie oder aber auch entlang einer in Umfangsrichtung verlaufenden Linie. Die Neigung der Stege gegenüber der Wand des Hohlraumes bestimmt man dann am besten in einer Ebene, die senkrecht zur Befestigungslinie des Steges an der Wand verläuft.Conveniently, the webs are inclined relative to the pipe stub wall (more precisely opposite a tangent to the pipe stub wall) at an angle between 20 ° and 70 °, with an angle in the range of about 45 ° being most preferred. Moreover, in the preferred embodiment of the invention, the webs may be substantially parallel to the axis, ie they are connected along a substantially axis-parallel line with the inner wall of the pipe socket and they are designed as short flat webs or plates, the plane of this Platelets or webs also runs parallel to the axis of the pipe socket. In principle, it is also possible that the webs are connected along a line inclined to the axis with the wall of the pipe socket, z. B. along a diagonal line or along a line extending in the circumferential direction. The inclination of the webs relative to the wall of the cavity is then best determined in a plane which runs perpendicular to the attachment line of the web to the wall.

Insbesondere wenn die Befestigungslinie der Stege eine nennenswerte Komponente in Umfangsrichtung hat, sollten diese Stege sich nur über relativ enge Winkelbereiche von weniger als 60° und vorzugsweise weniger als 30°, insbesondere bei nur in Umfangsrichtung verlaufenden Stegen, erstrecken. Falls nämlich die Stege sich über einen größeren Winkelbereich erstrecken, erhalten sie durch die Krümmung eine größere Steifigkeit und sind damit nicht mehr so leicht wegbiegbar. Da die Stege, wenn sie sich in Umfangsrichtung nur über relativ kurze Abschnitte erstrecken oder wenn sie entlang einer axial verlaufenden Linie an dem Rohrstutzen angebracht sind, relativ leicht bewegbar sind, können sie auch mit einer größeren Länge (gemessen senkrecht zu ihrer Befestigungslinie) ausgestattet werden, so daß auch aufgrund dieser Tatsache ein größerer Bewegungsweg zum Auffangen von Toleranzen für die Stege zur Verfügung steht.In particular, if the attachment line of the webs has a significant component in the circumferential direction, these webs should extend only over relatively narrow angle ranges of less than 60 ° and preferably less than 30 °, in particular with only extending in the circumferential direction webs. Namely, if the webs extend over a larger angular range, they get by the curvature of a greater rigidity and are therefore not so easy weggebegbar. Since the webs, when circumferentially extending over relatively short portions only, or when mounted along an axial line on the pipe socket, are relatively easy to move, they may also be provided with a greater length (measured perpendicular to their line of attachment) , so that also due to this fact, a larger path of movement for capturing tolerances for the webs is available.

In der bevorzugten Ausführungsform sind mehrere, z. B. drei entsprechende Stege und vorzugsweise mindestens sechs Stege vorgesehen, die zweckmäßigerweise in äquidistanten Winkelabständen entlang des Umfanges des Rohrstutzens verteilt sind, und zwar vorzugsweise entlang des unteren Endabschnittes des Rohrstutzens.In the preferred embodiment, several, e.g. B. three corresponding webs and preferably at least six webs are provided, which are advantageously distributed at equidistant angular intervals along the circumference of the pipe socket, preferably along the lower end portion of the pipe socket.

Weitere Vorteile, Merkmale und Anwendungsmöglichkeiten der vorliegenden Erfindung werden deutlich anhand einer bevorzugten Ausführungsform, wie sie in den beiliegenden Figuren dargestellt ist. Es zeigen:

  • Figur 1 einen axialen Schnitt durch ein erfindungsgemäßes Verschlußunterteil,
  • Figur 2 eine Ansicht von unten auf das Verschlußunterteil gemäß Figur 1 und
  • Figur 3 eine Ausschnittvergrößerung aus Figur 2.
Further advantages, features and applications of the present invention will become apparent from a preferred embodiment, as shown in the accompanying figures. Show it:
  • FIG. 1 an axial section through an inventive closure lower part,
  • FIG. 2 a bottom view of the closure bottom according to FIG. 1 and
  • FIG. 3 a cutout enlargement FIG. 2 ,

Man erkennt in Figur 1 den axialen Schnitt durch ein Verschlußunterteil 1, bestehend aus einem Rohrstutzen 2 mit Außengewinde 5 und einem an dem unteren Ende des Rohrstutzens 2 außen ansetzenden Befestigungsflansch 3. Nicht dargestellt ist ein üblicherweise ebenfalls vorhandenes Verschlußsiegel, welches im Inneren des Rohrstutzens 2 angeordnet ist und dessen Querschnitt verschließt. Weiterhin erkennt man entlang des unteren Randes des Rohrstutzens in jeder Darstellung insgesamt drei Vorsprünge in Form von kurzen Stegen 4, die, was in Figur 2 besser sichtbar ist, gegenüber der Wand des Rohrstutzens 2 geneigt sind.One recognizes in FIG. 1 the axial section through a closure lower part 1, consisting of a pipe socket 2 with external thread 5 and at the lower end of the pipe socket 2 attaching externally mounting flange 3. Not shown is a usually also present closure seal, which is arranged in the interior of the pipe socket 2 and its cross section closes. Furthermore, it can be seen along the lower edge of the pipe socket in each representation a total of three projections in the form of short webs 4, which, which in FIG. 2 is better visible, relative to the wall of the pipe socket 2 are inclined.

Zur Montage wird von unten her in den Rohrstutzen 2 ein kurzer Dorn eingeführt, dessen Durchmesser etwas geringer ist als der Innendurchmesser des Rohrstutzens 2, wobei die Stege 4 weggebogen, d.h. in Richtung der Rohrstutzenwand gedrückt werden, so daß über die elastische Rückstellkraft der Stege 4 das Verschlußunterteil 1 auf dem Dorn sicher gehalten wird. Das Verschlußunterteil wird dann mit Hilfe dieses Dorns an die Innenwand eines Behälters, z. B. einer Kartonverpakkung, herangeführt, die für die Aufnahme des Rohrstutzens 2 eine entsprechende Öffnung hat. Der Rohrstutzen 2 wird von innen her durch diese Öffnung hindurchgeführt, wobei sich der Flansch 3 an die Behälterinnenwand anlegt und mit dieser verschweißt oder verklebt wird. Anschließend wird der Dorn wieder aus dem Rohrstutzen 2 herausgezogen, wobei der Flansch 3 das Verschlußunterteil 1 an dem Behälter und in der Behälteröffnung festhält, so daß der Dorn trotz des Reibeingriffs mit den leicht wegbiegbaren Stegen 4 aus dem Rohrstutzen 2 herausgezogen werden kann. Dieser Vorgang erfolgt im allgemeinen vor der Ausbildung des Behälters an einer durchgehenden Materialbahn, aus der nach dem Anbringen des Verschlusses der Behälter gefaltet bzw. gebildet wird.For mounting a short mandrel is introduced from below into the pipe socket 2, whose diameter is slightly smaller than the inner diameter of the pipe socket 2, wherein the webs 4 bent away, i. be pressed in the direction of the pipe socket wall, so that on the elastic restoring force of the webs 4, the closure lower part 1 is securely held on the mandrel. The closure bottom is then using this mandrel to the inner wall of a container, for. As a Kartonverpakkung, introduced, which has a corresponding opening for receiving the pipe socket 2. The pipe socket 2 is passed from the inside through this opening, wherein the flange 3 rests against the container inner wall and is welded or glued thereto. Subsequently, the mandrel is again pulled out of the pipe socket 2, wherein the flange 3 holds the closure bottom 1 on the container and in the container opening, so that the mandrel can be pulled out of the pipe socket 2 despite the frictional engagement with the easily bendable webs 4. This process generally takes place prior to the formation of the container on a continuous material web from which the container is folded or formed after the closure has been attached.

In Figur 2 erkennt man in einer Ansicht von unten sowohl den Verschlußflansch als auch die (gestrichelt angedeutete) Wand des Rohrstutzens, von welcher aus sich insgesamt sechs Vorsprünge in Form schmaler Stege bzw. Lappen erstrecken, die gegenüber der Wand des Rohrstutzens 2 geneigt verlaufen. Dies wird noch besser sichtbar in der Ausschnittvergrößerung aus Figur 2, die in Figur 3 dargestellt ist. Die Länge der Stege 4, gemessen von dem Ansatzpunkt an der Rohrstutzenwand bis zum freien Ende, beträgt zwischen 0,5 und 1,5 mm und die Dicke dieser Stege liegt zweckmäßigerweise zwischen 0,3 und 0,6 mm. Der Winkel α beträgt in der bevorzugten Ausführungsform etwa 45°, kann aber bei Bedarf auch kleiner oder größer gewählt werden, wenn z. B. größere Toleranzabweichungen aufgefangen werden sollen.In FIG. 2 can be seen in a view from below both the closure flange and the (dashed lines indicated) wall of the pipe socket, from which a total of six projections in the form of narrow webs or lobes extend, which are inclined relative to the wall of the pipe socket 2. This becomes even more visible in the cropping magnification FIG. 2 , in the FIG. 3 is shown. The length of the webs 4, measured from the point of attachment to the pipe socket wall to the free end, is between 0.5 and 1.5 mm and the thickness of these webs is suitably between 0.3 and 0.6 mm. The angle α is in the preferred embodiment about 45 °, but can be selected smaller or larger if necessary, if z. B. larger tolerance deviations should be collected.

Claims (7)

  1. Closure underpart with a tubular sleeve (2) and a fixing flange (3) arranged on the outside of the tubular sleeve (2), at least one projection (4) being arranged on the inside of the tubular sleeve (2), which serves to hold the closure underpart (1) on a spike inserted into the tubular sleeve (2) when fixing to a vessel wall, characterized in that the at least one projection (4) has the form of a bendable web, which runs inclined at an angle α vis-à-vis the inner wall of the tubular sleeve (2) which is smaller than 90° and greater than 0°.
  2. Closure underpart according to claim 1, characterized in that the angle (α) is between 20° and 70°, in particular roughly 45°.
  3. Closure underpart according to claim 1 or 2, characterized in that the web (4) runs roughly axis-parallel.
  4. Closure underpart according to one of claims 1 to 3, characterized in that at least three and preferably at least six projections or webs (4) are provided at equidistant angular distances on the inner surface of the tubular sleeve and adjacent to the lower inner edge of the same.
  5. Closure underpart according to one of claims 1 to 4, characterized in that the webs have a height, measured in a plane perpendicular to the closure axis and at the angle α to the tubular sleeve wall, of 0.5 to 1.5 mm.
  6. Closure underpart according to one of claims 1, 2, 4 or 5, characterized in that the webs (4) run inclined vis-à-vis the axis of the sleeve (2).
  7. Closure underpart according to claim 1 or 2, characterized in that the projections consist of web sections running in circumferential direction which each extend over a angle range of less than 90°, and preferably over an angle range of less than 30°, and run inclined vis-à-vis the closure axis.
EP02758058A 2001-07-11 2002-06-21 Closing lower part with a retaining rib Expired - Fee Related EP1404582B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133809A DE10133809A1 (en) 2001-07-11 2001-07-11 Spout for drinks carton comprises tube with peripheral flange, tags which project inwards at angle holding spout in position
DE10133809 2001-07-11
PCT/DE2002/002268 WO2003006328A1 (en) 2001-07-11 2002-06-21 Closing lower part with a retaining rib

Publications (2)

Publication Number Publication Date
EP1404582A1 EP1404582A1 (en) 2004-04-07
EP1404582B1 true EP1404582B1 (en) 2008-04-23

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EP02758058A Expired - Fee Related EP1404582B1 (en) 2001-07-11 2002-06-21 Closing lower part with a retaining rib

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US (1) US20040245262A1 (en)
EP (1) EP1404582B1 (en)
DE (2) DE10133809A1 (en)
ES (1) ES2303552T3 (en)
WO (1) WO2003006328A1 (en)

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Also Published As

Publication number Publication date
WO2003006328A1 (en) 2003-01-23
ES2303552T3 (en) 2008-08-16
DE50212154D1 (en) 2008-06-05
DE10133809A1 (en) 2003-01-23
US20040245262A1 (en) 2004-12-09
EP1404582A1 (en) 2004-04-07

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