EP1404582A1 - Closing lower part with a retaining rib - Google Patents

Closing lower part with a retaining rib

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Publication number
EP1404582A1
EP1404582A1 EP02758058A EP02758058A EP1404582A1 EP 1404582 A1 EP1404582 A1 EP 1404582A1 EP 02758058 A EP02758058 A EP 02758058A EP 02758058 A EP02758058 A EP 02758058A EP 1404582 A1 EP1404582 A1 EP 1404582A1
Authority
EP
European Patent Office
Prior art keywords
pipe socket
closure part
webs
lower closure
wall
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
EP02758058A
Other languages
German (de)
French (fr)
Other versions
EP1404582B1 (en
Inventor
Günter Jakob KRAUTKRÄMER
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.)
Bericap GmbH and Co KG
Original Assignee
Bericap GmbH and Co KG
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 Bericap GmbH and Co KG filed Critical Bericap GmbH and Co KG
Publication of EP1404582A1 publication Critical patent/EP1404582A1/en
Application granted granted Critical
Publication of EP1404582B1 publication Critical patent/EP1404582B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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 lower closure part with a pipe socket and a fastening flange arranged on the outside of the pipe socket, at least one projection being provided on the inside of the pipe socket, which serves to hold the lower closure part on a mandrel when fastened to a container wall.
  • Corresponding lower closure parts have been known for a long time and they are mainly used for plastic closures of cardboard packaging, e.g. B. for drinks or the like, in which the closure or the lower closure part is generally passed from the (later) inside of the container through an opening in the wall of the container, the closure flange coming into contact with the inner surface of the container wall and then with this is welded or glued.
  • the corresponding mandrels must be matched to the inside diameter of the corresponding lower closure parts, or more precisely to the diameter defined by the projections, in order on the one hand to hold a lower closure part securely before and during assembly, and on the other hand also to easily remove it from the assembled lower closure part to be able to be removed.
  • 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 thereof and in the vicinity of the lower inner edge.
  • the mandrels for holding these closures must also be changed, because a given closure size can only be held with a suitably matched mandrel, there being only little tolerance margin for holding and transporting the bottom part of the closure to ensure a mandrel, but on the other hand to be able to easily detach the mandrel from the assembled lock.
  • the change of the mandrels for the adaptation to different closure sizes is relatively time-consuming and annoying and significantly reduces the productivity in the manufacture or attachment of such closures. Even slight tolerances in the manufacture of one and the same type of closure can already lead to malfunctions during assembly, since the closure then either slides off the mandrel too easily or is held too tightly on the mandrel.
  • 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 is available below the closure seal for holding by a corresponding mandrel.
  • the present invention has for its object to provide a corresponding lower closure part, which can be held on a mandrel with a much greater tolerance.
  • the at least one projection has the shape of a web which can be bent away and which is inclined relative to the inner wall of the connecting piece at an angle which is less than 90 ° and greater than 0 °.
  • deflectable webs are provided, which are opposite the inner wall of the nozzle is inclined at an angle that is less than 90 ° and greater than 0 °. This effectively means that a much larger elastic movement path is available by bending the webs away than was usually possible by compressing or radially expanding the corresponding material.
  • the projection according to the invention in the form of a web which can be bent away and extends at an angle to the pipe socket wall, substantially larger tolerance deviations of the mandrel diameter with respect to the pipe socket diameter can be absorbed, so that even with different types of closures with slightly different pipe socket diameters, one and the same mandrel can nevertheless be used in order to do this To hold and assemble the lower part of the lock.
  • the webs expediently incline at an angle between 20 ° and 70 ° with respect to the pipe socket wall (more precisely with respect to a tangent to the pipe socket wall), an angle in the range of approximately 45 ° being most preferred.
  • the webs in the preferred embodiment of the invention can run essentially axially parallel, ie they are connected to the inner wall of the pipe socket along a substantially axially parallel line and they are designed as short, flat webs or plates, the level of which Platelets or webs also run parallel to the axis of the pipe socket.
  • the webs are connected to the wall of the pipe socket along a line inclined to the axis, for. B. along a diagonal line or else along a circumferential line.
  • the inclination of the webs in relation to the wall of the cavity is then best determined in a plane that is perpendicular to the line of attachment of the web to the wall.
  • these webs should only extend over relatively narrow angular ranges of less than 60 ° and preferably less than 30 °, in particular in the case of webs running only in the circumferential direction. If, in fact, the webs extend over a larger angular range, the curvature gives them greater rigidity and is therefore no longer easily bent away.
  • the webs are relatively easy to move if they only extend in the circumferential direction over relatively short sections or if they are attached to the pipe socket along an axially running line, they can also be provided with a greater length (measured perpendicular to their fastening line) , so that, due to this fact, there is a larger movement path for catching tolerances for the webs.
  • several, e.g. B. three corresponding webs and preferably at least six webs are provided, which are expediently distributed at equidistant angular intervals along the circumference of the pipe socket, and preferably along the lower end portion of the pipe socket.
  • FIG. 1 shows an axial section through an inventive lower part
  • FIG. 2 shows a bottom view of the lower part according to FIG. 1
  • FIG. 3 shows an enlarged detail from FIG. 2.
  • FIG. 1 shows the axial section through a lower closure part 1, consisting of a pipe socket 2 with an external thread 5 and an attachment flange 3 attached externally to the lower end of the pipe socket 2.
  • a closure seal which is also usually present and which is located in the interior of the pipe socket 2 is arranged and its cross section closes.
  • a total of three projections in the form of short webs 4 can be seen along the lower edge of the pipe socket in each representation, which, as can be seen more clearly in FIG. 2, are inclined towards the wall of the pipe socket 2.
  • a short mandrel is inserted from below into the pipe socket 2, the diameter of which is slightly smaller than the inside diameter of the pipe socket 2, the webs 4 being bent away, ie pressed in the direction of the pipe socket wall, so that the elastic restoring force causes the Web 4 the lower closure part 1 is held securely on the mandrel.
  • the lower closure part is then with the help of this dome on the inner wall of a container, for. B. a cardboard packaging brought up, which has a corresponding opening for receiving the pipe socket 2.
  • the pipe socket 2 is passed through this opening from the inside, the flange 3 abutting the inside wall of the container and being welded or glued to it.
  • the mandrel is then pulled out of the pipe socket 2 again, the flange 3 holding the lower closure part 1 to 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 deflectable webs 4.
  • This process generally takes place before the container is formed on a continuous material web from which the container is folded or formed after the closure has been attached.

Landscapes

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

Abstract

The invention relates to a closing lower part comprising a connecting sleeve (2) and a fixing flange (3) arranged on the outer side of said connecting sleeve (2), wherein at least one projecting element (4) is provided on the inner side of the connecting sleeve (2). The projecting element is designed to retain the closing lower part (1) when it is fixed to a mandrel inserted in the connecting sleeve (2) in a container wall. In order to provide a corresponding closing lower part that can be retained with a substantially higher margin of tolerance in a mandrel, the at least one projecting element (4) has the shape of a rib that can be flexibly moved away and which extends inclined relative to the inner wall of the connecting sleeve (2) at an angle alpha that is smaller than 90 DEG and bigger than 0 DEG .

Description

Verschlußunterteil mit Haltesteg Lower part of the closure with retaining bridge
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 lower closure part with a pipe socket and a fastening flange arranged on the outside of the pipe socket, at least one projection being provided on the inside of the pipe socket, which serves to hold the lower closure part on a mandrel when fastened to a container wall.
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 lower closure parts have been known for a long time and they are mainly used for plastic closures of cardboard packaging, e.g. B. for drinks or the like, in which the closure or the lower closure part is generally passed from the (later) inside of the container through an opening in the wall of the container, the closure flange coming into contact with the inner surface of the container wall and then with this is welded or glued.
Für diese Montage, die Aufnahme der Verschlüsse und den Transport derselben werden im allgemeinen "Dorne" 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, "mandrels" are generally used which fit into the interior of the pipe socket and usually come into more or less strong frictional engagement with the inwardly projecting projections.
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.It goes without saying that the corresponding mandrels must be matched to the inside diameter of the corresponding lower closure parts, or more precisely to the diameter defined by the projections, in order on the one hand to hold a lower closure part securely before and during assembly, and on the other hand also to easily remove it from the assembled lower closure part to be able to be removed.
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.A configuration 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 thereof and in the vicinity of the lower inner edge.
Wenn entsprechende Verschlüsse unterschiedliche Größe haben, müssen auch die Dorne zur Hal- terung 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 sicherzustel- len, andererseits aber auch den Dorn wieder leicht aus dem montierten Verschluß lösen zu können. 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 ent- weder zu leicht von dem Dorn abgleitet oder zu stramm auf dem Dorn gehalten wird.If corresponding closures have different sizes, the mandrels for holding these closures must also be changed, because a given closure size can only be held with a suitably matched mandrel, there being only little tolerance margin for holding and transporting the bottom part of the closure to ensure a mandrel, but on the other hand to be able to easily detach the mandrel from the assembled lock. The change of the mandrels for the adaptation to different closure sizes is relatively time-consuming and annoying and significantly reduces the productivity in the manufacture or attachment of such closures. Even slight tolerances in the manufacture of one and the same type of closure can already lead to malfunctions during assembly, since the closure then either slides off the mandrel too easily 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 is available below the closure seal for holding by a corresponding mandrel.
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 has for its object to provide a corresponding lower closure part, which can be held on a mandrel with a much greater tolerance.
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 web which can be bent away and which is inclined relative to the inner wall of the connecting piece at an angle which is less 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 Rohr- stutzendurchmesser 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.While the projections have conventionally been compressed in the radial direction by engagement with a mandrel or the diameter defined by the projections has been widened by compressing the material itself, according to the present invention, instead of the relatively rigid and only elastically compressible projections, deflectable webs are provided, which are opposite the inner wall of the nozzle is inclined at an angle that is less than 90 ° and greater than 0 °. This effectively means that a much larger elastic movement path is available by bending the webs away than was usually possible by compressing or radially expanding the corresponding material. Accordingly, with the projection according to the invention in the form of a web which can be bent away and extends at an angle to the pipe socket wall, substantially larger tolerance deviations of the mandrel diameter with respect to the pipe socket diameter can be absorbed, so that even with different types of closures with slightly different pipe socket diameters, one and the same mandrel can nevertheless be used in order to do this To hold and assemble the lower part of the lock.
Zweckmäßigerweise verlaufen die Stege gegenüber der Rohrstutzenwand (genauer gesagt gegen- über 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 Hohl- raumes bestimmt man dann am besten in einer Ebene, die senkrecht zur Befestigungslinie des Steges an der Wand verläuft.The webs expediently incline at an angle between 20 ° and 70 ° with respect to the pipe socket wall (more precisely with respect to a tangent to the pipe socket wall), an angle in the range of approximately 45 ° being most preferred. Otherwise, the webs in the preferred embodiment of the invention can run essentially axially parallel, ie they are connected to the inner wall of the pipe socket along a substantially axially parallel line and they are designed as short, flat webs or plates, the level of which Platelets or webs also run parallel to the axis of the pipe socket. Basically, it is also possible that the webs are connected to the wall of the pipe socket along a line inclined to the axis, for. B. along a diagonal line or else along a circumferential line. The inclination of the webs in relation to the wall of the cavity is then best determined in a plane that is perpendicular to the line of attachment 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 fastening line of the webs has a significant component in the circumferential direction, these webs should only extend over relatively narrow angular ranges of less than 60 ° and preferably less than 30 °, in particular in the case of webs running only in the circumferential direction. If, in fact, the webs extend over a larger angular range, the curvature gives them greater rigidity and is therefore no longer easily bent away. Since the webs are relatively easy to move if they only extend in the circumferential direction over relatively short sections or if they are attached to the pipe socket along an axially running line, they can also be provided with a greater length (measured perpendicular to their fastening line) , so that, due to this fact, there is a larger movement path for catching tolerances for the webs.
In der bevorzugten Ausführungsform sind mehrere, z. B. drei entsprechende Stege und vorzugswei- se 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 expediently distributed at equidistant angular intervals along the circumference of the pipe socket, and 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:Further advantages, features and possible uses of the present invention will become clear on the basis of a preferred embodiment as shown in the attached figures. Show it:
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 2.1 shows an axial section through an inventive lower part, FIG. 2 shows a bottom view of the lower part according to FIG. 1, and FIG. 3 shows an enlarged detail from 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. 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 Rück- stellkraft der Stege 4 das Verschlußunterteil 1 auf dem Dorn sicher gehalten wird. Das Verschlußun- terteil wird dann mit Hilfe dieses Doms an die Innenwand eines Behälters, z. B. einer Kartonverpak- kung, 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.1 shows the axial section through a lower closure part 1, consisting of a pipe socket 2 with an external thread 5 and an attachment flange 3 attached externally to the lower end of the pipe socket 2. Not shown is a closure seal which is also usually present and which is located in the interior of the pipe socket 2 is arranged and its cross section closes. Furthermore, a total of three projections in the form of short webs 4 can be seen along the lower edge of the pipe socket in each representation, which, as can be seen more clearly in FIG. 2, are inclined towards the wall of the pipe socket 2. For assembly, a short mandrel is inserted from below into the pipe socket 2, the diameter of which is slightly smaller than the inside diameter of the pipe socket 2, the webs 4 being bent away, ie pressed in the direction of the pipe socket wall, so that the elastic restoring force causes the Web 4 the lower closure part 1 is held securely on the mandrel. The lower closure part is then with the help of this dome on the inner wall of a container, for. B. a cardboard packaging brought up, which has a corresponding opening for receiving the pipe socket 2. The pipe socket 2 is passed through this opening from the inside, the flange 3 abutting the inside wall of the container and being welded or glued to it. The mandrel is then pulled out of the pipe socket 2 again, the flange 3 holding the lower closure part 1 to 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 deflectable webs 4. This process generally takes place before the container is formed 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 a 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 Figure 2, one can see in a view from below both the closure flange and the (indicated by dashed lines) wall of the pipe socket, from which a total of six projections in the form of narrow webs or lobes extend, which are inclined to the wall of the pipe socket 2. This becomes even more visible in the enlarged detail from FIG. 2, which is shown in FIG. 3. The length of the webs 4, measured from the starting point on the pipe socket wall to the free end, is between 0.5 and 1.5 mm and the thickness of these webs is advantageously between 0.3 and 0.6 mm. The angle a is about 45 ° in the preferred embodiment, but can also be selected smaller or larger if necessary, for. B. larger tolerance deviations should be absorbed.

Claims

Patentansprüche claims
1. Verschlußunterteil mit einem Rohrstutzen (2) und einem auf der Außenseite des Rohrstut- zens (2) angeordneten Befestigungsflansch (3), wobei mindestens ein Vorsprung (4) auf der1. Lower closure part with a pipe socket (2) and a fastening flange (3) arranged on the outside of the pipe socket (2), at least one projection (4) on the
Innenseite des Rohrstutzens (2) vorgesehen ist, der dazu dient, das Verschlußunterteil (1) beim Befestigen an einer Behälterwand auf einem in den Rohrstutzen (2) eingesteckten Dorn zu halten, dadurch gekennzeichnet, daß der mindestens eine Vorsprung (4) die Form eines wegbiegbaren Steges hat, der gegenüber der Innenwand des Rohrstutzens (2) unter einem Winkel a geneigt verläuft, der kleiner als 90° und größer als 0° ist.Inside of the pipe socket (2) is provided, which serves to hold the lower closure part (1) when fastened to a container wall on a mandrel inserted into the pipe socket (2), characterized in that the at least one projection (4) has the shape of a has bendable web, which is inclined relative to the inner wall of the pipe socket (2) at an angle a which is less than 90 ° and greater than 0 °.
2. Verschlußunterteil nach Anspruch 1 , dadurch gekennzeichnet, daß der Winkel (a) zwischen 20° und 70°, insbesondere bei etwa 45° liegt.2. Lower closure part according to claim 1, characterized in that the angle (a) is between 20 ° and 70 °, in particular at about 45 °.
3. Verschlußunterteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Steg (4) in etwa achsparallel verläuft.3. Lower closure part according to claim 1 or 2, characterized in that the web (4) extends approximately axially parallel.
4. Verschlußunterteil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß mindestens drei und vorzugsweise mindestens 6 Vorsprünge bzw. Stege (4) in äquidistanten Win- kelabständen auf der Innenfläche des Rohrstutzens und an die untere Innenkante desselben angrenzend vorgesehen sind.4. Lower closure part according to one of claims 1 to 3, characterized in that at least three and preferably at least 6 projections or webs (4) are provided at equidistant angular intervals on the inner surface of the pipe socket and adjacent to the lower inner edge thereof.
5. Verschlußunterteil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stege eine Höhe, gemessen in einer Ebene senkrecht zur Verschlußachse und unter dem Winkel a zur Rohrstutzenwand, von 0,5 bis 1 ,5 mm haben.5. Lower closure part 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 a to the pipe socket wall, of 0.5 to 1.5 mm.
6. Verschlußunterteil nach einem der Ansprüche 1 , 2, 4 oder 5, dadurch gekennzeichnet, daß die Stege (4) zur Achse des Stutzens (2) geneigt verlaufen.6. Lower closure part according to one of claims 1, 2, 4 or 5, characterized in that the webs (4) to the axis of the nozzle (2) are inclined.
7. Verschlußunterteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Vorsprünge aus in Umfangsrichtung verlaufenden Stegabschnitten bestehen, die sich jeweils über einen Winkelbereich von weniger als 90°, und vorzugsweise über einen Winkelbereich von weniger als 30°, erstrecken und gegenüber der Verschlußachse geneigt verlaufen. 7. Lower closure part according to claim 1 or 2, characterized in that the projections consist of circumferential web sections which each extend over an angular range of less than 90 °, and preferably over an angular range of less than 30 °, and with respect to the closure axis run inclined.
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 true EP1404582A1 (en) 2004-04-07
EP1404582B1 EP1404582B1 (en) 2008-04-23

Family

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Application Number Title Priority Date Filing Date
EP02758058A Expired - Fee Related EP1404582B1 (en) 2001-07-11 2002-06-21 Closing lower part with a retaining rib

Country Status (5)

Country Link
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
EP1404582B1 (en) 2008-04-23
US20040245262A1 (en) 2004-12-09
DE50212154D1 (en) 2008-06-05
DE10133809A1 (en) 2003-01-23
ES2303552T3 (en) 2008-08-16

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