EP2199228B1 - Multi-component cartridge - Google Patents

Multi-component cartridge Download PDF

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Publication number
EP2199228B1
EP2199228B1 EP09401045A EP09401045A EP2199228B1 EP 2199228 B1 EP2199228 B1 EP 2199228B1 EP 09401045 A EP09401045 A EP 09401045A EP 09401045 A EP09401045 A EP 09401045A EP 2199228 B1 EP2199228 B1 EP 2199228B1
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EP
European Patent Office
Prior art keywords
container
tube
component
composition
component cartridge
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.)
Not-in-force
Application number
EP09401045A
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German (de)
French (fr)
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EP2199228A1 (en
Inventor
Jürgen Grün
Clemens Schmidt
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.)
Fischerwerke GmbH and Co KG
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Fischerwerke GmbH and Co KG
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Publication date
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Priority to PL09401045T priority Critical patent/PL2199228T3/en
Publication of EP2199228A1 publication Critical patent/EP2199228A1/en
Application granted granted Critical
Publication of EP2199228B1 publication Critical patent/EP2199228B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/325—Containers having parallel or coaxial compartments, provided with a piston or a movable bottom for discharging contents

Definitions

  • the invention relates to a multi-component cartridge having the features of the preamble of claim 1.
  • the tube contains at least one container, so that the components are separated by the container wall.
  • the container may be a tubular bag, a blow molding or the like.
  • the other component is either also stored in a container, so for example in another blow molding, another tubular bag or a separate compartment of the tubular bag, or it fills the remaining space of the tube, that is essentially from the container of the first component and the inner wall limited to the tube.
  • two or correspondingly more containers would be arranged in this case, while a component would be filled container-free in the tube.
  • the illustration should always be based on two-component masses.
  • the advantage of the systems with a tube and a container is on the one hand the expressibility with conventional extrusion guns and on the other hand a favorable production compared to systems with containers for each component.
  • it can easily lead to a tilting of the container within the tube, because due to the compressive forces to compress the container and the typically different viscosities of the components transverse forces occur.
  • the tilting leads to an uneven discharge of the two components, which means that the mixing ratio of the components on the Auspressvorgang varies. This is undesirable because of the subsequent chemical or physical processes.
  • the publication DE 10 2004 056 908 A1 shows a cartridge according to the preamble of claim 1 and proposes to adhere the container to the inside of the tube and thereby stabilize.
  • the container is continuously removed during the extrusion of the mass with the piston from the inner wall of the tube.
  • gluing causes an additional, laborious production step.
  • the object of the invention is therefore to provide a multi-component cartridge with a simpler, cheaper producible structure, which ensures a uniform discharge of the components with a constant mixing ratio.
  • the invention proposes a multicomponent cartridge for two or more components of a flowable mass.
  • flowable compositions are meant those substances which, due to their viscosity and, if appropriate, granulation, allow a manual or mechanical squeezing out of the cartridge.
  • the multi-component cartridge has a tube for receiving the mass, which in particular can be cylindrical, wherein in principle other shapes are possible.
  • the multicomponent cartridge has an outlet opening for the mass, wherein this outlet opening has, in particular, a reduced cross-section with respect to the tube cross-section and can be closed.
  • the outlet opening may be designed for mounting a static mixer.
  • the components of the mass are stored separately from each other in the tube, wherein at least for a first component, in particular a longitudinally compressible container is provided.
  • a first component in particular a longitudinally compressible container is provided.
  • longitudinal or axial refers to the longitudinal direction of the multi-component cartridge and thus to the Auspressraum.
  • the container is supported distributed over the circumference such that tilting of the container within the tube during extrusion is prevented.
  • the support is made via a concern on the inside of the tube, in particular pressure can be transmitted via the contact points.
  • the support thus takes place in that opposite points of the contact points on the inside of the tube ensure that there is no tilting or buckling of the container.
  • the multi-component cartridge thereby provides a constant Mixing ratio when pressing the mass. At the same time no gluing, welding or the like.
  • a fixation can be provided, for example, to prevent a rotation about the longitudinal axis of the tube.
  • the container according to the invention should not fill the entire cross-sectional area of the tube, but it should be arranged over the entire length of the container a container-free cross-sectional area for flow of a second component substantially.
  • This makes it possible that a second component of the mass container-free, that is, between the container and the inner wall of the tube, stored and can be pressed out safely.
  • the multicomponent cartridge for example, include a third or fourth component, so additional containers can be provided in addition.
  • the containers can also support each other, that is, the support distributed over the circumference on the inside of the tube takes place for the entirety of the container.
  • a single container can also be replaced by two or more individual containers that supplement each other to the same geometry, if the number of components requires this.
  • the abutments do not have to extend over the entire length of the pipe. At cross-sections with contact points, however, these are preferably distributed symmetrically over the circumference. This results in a particularly uniform and thus stable support.
  • the multi-component cartridge has a head piece on the tube, which can in particular also form the outlet opening.
  • the head piece can serve as a contact surface for the container for receiving the axial compression forces. There is thus the risk that the container seals at this point at the same time and the second component can not flow in the direction of the outlet opening.
  • the invention therefore proposes that one or more elevations for axial support of the container are formed on the inside of the head piece in the direction of the container. Grooves or the like arise between the elevations as flow channels.
  • the container is designed as a blow-molded part.
  • other production methods are also conceivable, for example the production as an injection-molded part.
  • the container has, in a preferred embodiment, an outlet which is arranged centrally with respect to the outlet opening.
  • the second component flows around the first component during pressing, as a result of which the components can be easily mixed further.
  • the closure and effective sealing is facilitated by a central arrangement. It is not necessary for the outlet opening itself to be centered with respect to the cross-section of the tube, but such a symmetrical structure results in simplifications in the production of the multi-component cartridge.
  • the multi-component cartridge 1 is used to store a two-component, flowable mass, for example an epoxy resin, wherein the two components can be stored separately and pressed together with a fixed mixing ratio.
  • the mass itself is not shown for clarity.
  • the multi-component cartridge has as in FIG. 1 represented as a basic body, a cylindrical tube 2, which is located at one end reduced in one piece to a head piece 3 in diameter. Due to the diameter reduction arises inside a stop shoulder 4, to which a tubular, cylindrical neck 5 with an external thread 6 connects. The external thread 6 serves to screw on a lid or a static mixer (not shown). At its opposite end, the tube 2 has no change in diameter. It is closed by an inserted piston 7.
  • the piston 7 is shown simplified as a cylindrical block. In fact, it has a more detailed geometry with a sealing lip, stiffening ribs, vent hole and the like on what it does not matter in this context.
  • a container 8 in the form of a blow molding.
  • the container 8 is additionally in FIG. 2 shown in perspective.
  • the container 8 serves to store a first component of a mass. He has the basic shape of a cylindrical bellows, that is, he has circumferential predetermined bending points 9, 10 in the form of pleat-like diameter expansions or - constrictions.
  • the predetermined bending points 9, 10 can thus be differentiated into convex outer predetermined bending points 9 and concave inner predetermined bending points 10.
  • At one end of the container 8 is located on the piston 7.
  • the container 8 is closed at this end by a rear wall 11. At the opposite end of the container 8 abuts against the stop shoulder 4 of the head piece 3.
  • the container 8 is also reduced at this end so far in diameter that it extends to a tubular, open outlet 12 centrally through the nozzle 5 and this even extends slightly beyond the longitudinal direction of the multi-component cartridge 1.
  • its outer diameter is slightly smaller than the inner diameter of the nozzle 5, so that an annular outlet channel 13 remains.
  • Outlet 12 and outlet channel 13 together form the outlet opening 14 of the multicomponent cartridge 1 for the mass.
  • the second component of the mass is arranged in the remaining space of the tube 2 minus the container 8.
  • the container 8 has at its outer predetermined bending points 9 an outer diameter which corresponds approximately to the inner diameter of the tube 8 in this area.
  • the outer predetermined bending points 9 are distributed over the circumference four points flattened, that is, the predetermined bending points 9 do not have the shape of a circle in this area, but form secant-like flattenings 16. Accordingly the multicomponent cartridge 1 in this area a container-free cross-sectional area A, as in particular in FIG. 3 shown.
  • the term "container-free” refers not only to the wall of the container 8, but also to the volume enclosed by the container 8.
  • FIG. 4 shows an alternative cross section FIG. 3 ,
  • the container 8 ' is not rotationally symmetrical, but it is, starting again from the basic shape of a cylindrical bellows, only on one side of the outer predetermined bending points 9' a flattening 16 '.
  • the contact points 20 ' are not distributed symmetrically over the circumference.
  • This geometry has the advantage that the second component can be filled more easily due to the space available.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Package Specialized In Special Use (AREA)

Abstract

The multi-component cartridge (1) has a cylindrical tube (2) for receiving the mass and a piston is provided for extruding mass. An exhaust port (14) is provided for mass. A container (8) lies over a periphery at an inner side of the tube with one or multiple bearing points in distributed manner.

Description

Die Erfindung betrifft eine Mehrkomponentenkartusche mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a multi-component cartridge having the features of the preamble of claim 1.

Zum Auspressen von mehrkomponentigen, fließfähigen Massen, beispielsweise zur Verankerung von Befestigungsmitteln, sind verschiedene Systeme bekannt. Es existieren so genannte Shuttlekartuschen, bei denen die Komponenten in getrennten Rohren aufbewahrt und parallel in eine gemeinsame Austrittsöffnung mündend ausgepresst werden. Außerdem sind Systeme bekannt, bei denen die Komponenten gemeinsam in einem Rohr aufbewahrt und über einen gemeinsamen Kolben ausgepresst werden. Hierzu enthält das Rohr mindestens einen Behälter, so dass die Komponenten durch die Behälterwand getrennt sind. Bei dem Behälter kann es sich um einen Schlauchbeutel, ein Blasformteil oder dgl. handeln. Die andere Komponente ist entweder ebenfalls in einem Behälter aufbewahrt, also beispielsweise in einem weiteren Blasformteil, einem weiteren Schlauchbeutel oder einem separaten Abteil des Schlauchbeutels, oder sie füllt den verbleibenden Raum des Rohres aus, wird also im Wesentlichen vom Behälter der ersten Komponente und der Innenwand des Rohres begrenzt. Bei drei oder mehr Komponenten wären in diesem Fall zwei bzw. entsprechend mehr Behälter angeordnet, während eine Komponente behälterfrei im Rohr eingefüllt wäre. Im Weiteren soll der Einfachheit halber bei der Darstellung stets von zweikomponentigen Massen ausgegangen werden.For pressing multi-component, flowable materials, for example for anchoring fasteners, various systems are known. There are so-called shuttle cartridges, in which the components are stored in separate tubes and pressed out in parallel opening into a common outlet opening. In addition, systems are known in which the components are stored together in a tube and pressed out via a common piston. For this purpose, the tube contains at least one container, so that the components are separated by the container wall. The container may be a tubular bag, a blow molding or the like. The other component is either also stored in a container, so for example in another blow molding, another tubular bag or a separate compartment of the tubular bag, or it fills the remaining space of the tube, that is essentially from the container of the first component and the inner wall limited to the tube. In the case of three or more components, two or correspondingly more containers would be arranged in this case, while a component would be filled container-free in the tube. In the following, for the sake of simplicity, the illustration should always be based on two-component masses.

Der Vorteil der Systeme mit einem Rohr und einem Behälter ist einerseits die Auspressbarkeit mit konventionellen Auspresspistolen und andererseits eine günstige Herstellung gegenüber Systemen mit Behältern für jede Komponente. Allerdings kann es leicht zu einem Verkippen des Behälters innerhalb des Rohres kommen, weil aufgrund der Kompressionskräfte zum Stauchen des Behälters und der typischerweise unterschiedlichen Viskositäten der Komponenten Querkräfte auftreten. Durch das Verkippen kommt es zu einem ungleichmäßigen Austrag der beiden Komponenten, was bedeutet, dass das Mischungsverhältnis der Komponenten über den Auspressvorgang hinweg variiert. Dies ist aufgrund der nachfolgenden chemischen oder physikalischen Vorgänge nicht erwünscht.The advantage of the systems with a tube and a container is on the one hand the expressibility with conventional extrusion guns and on the other hand a favorable production compared to systems with containers for each component. However, it can easily lead to a tilting of the container within the tube, because due to the compressive forces to compress the container and the typically different viscosities of the components transverse forces occur. The tilting leads to an uneven discharge of the two components, which means that the mixing ratio of the components on the Auspressvorgang varies. This is undesirable because of the subsequent chemical or physical processes.

Die Druckschrift DE 10 2004 056 908 A1 zeigt eine Kartusche gemäβ dem Oberbegriff des Anspruchs 1 und schlägt vor, den Behälter an der Innenseite des Rohrs anzukleben und hierdurch zu stabilisieren. Der Behälter wird beim Auspressen der Masse kontinuierlich mit dem Kolben von der Innenwand des Rohres abgelöst. Allerdings verursacht das Einkleben einen zusätzlichen, aufwändigen Produktionsschritt.The publication DE 10 2004 056 908 A1 shows a cartridge according to the preamble of claim 1 and proposes to adhere the container to the inside of the tube and thereby stabilize. The container is continuously removed during the extrusion of the mass with the piston from the inner wall of the tube. However, gluing causes an additional, laborious production step.

Aufgabe der Erfindung ist daher, eine Mehrkomponentenkartusche mit einem einfacheren, günstiger herstellbaren Aufbau zu schaffen, der einen gleichmäßigen Austrag der Komponenten mit gleich bleibendem Mischungsverhältnis gewährleistet.The object of the invention is therefore to provide a multi-component cartridge with a simpler, cheaper producible structure, which ensures a uniform discharge of the components with a constant mixing ratio.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Die Erfindung schlägt eine Mehrkomponentenkartusche für zwei oder mehr Komponenten einer fließfähigen Masse vor. Mit fließfähigen Massen sind derartige Substanzen gemeint, die aufgrund ihrer Viskosität und gegebenenfalls Körnung ein manuelles oder maschinelles Auspressen aus der Kartusche erlauben. Die Mehrkomponentenkartusche weist ein Rohr zur Aufnahme der Masse auf, welches insbesondere zylindrisch sein kann, wobei grundsätzlich auch andere Formen möglich sind. Die Mehrkomponentenkartusche weist eine Austrittsöffnung für die Masse auf, wobei diese Austrittsöffnung insbesondere einen gegenüber dem Rohrquerschnitt verminderten Querschnitt aufweist und verschließbar ist. Die Austrittsöffnung kann zum Aufsetzen eines Statikmischers ausgebildet sein. Die Komponenten der Masse sind voneinander getrennt im Rohr aufbewahrbar, wobei zumindest für eine erste Komponente ein insbesondere längs komprimierbarer Behälter vorgesehen ist. Die Bezeichnung längs bzw. axial bezieht sich auf die Längsrichtung der Mehrkomponentenkartusche und damit auf die Auspressrichtung.This object is achieved by the features of claim 1. The invention proposes a multicomponent cartridge for two or more components of a flowable mass. By flowable compositions are meant those substances which, due to their viscosity and, if appropriate, granulation, allow a manual or mechanical squeezing out of the cartridge. The multi-component cartridge has a tube for receiving the mass, which in particular can be cylindrical, wherein in principle other shapes are possible. The multicomponent cartridge has an outlet opening for the mass, wherein this outlet opening has, in particular, a reduced cross-section with respect to the tube cross-section and can be closed. The outlet opening may be designed for mounting a static mixer. The components of the mass are stored separately from each other in the tube, wherein at least for a first component, in particular a longitudinally compressible container is provided. The term longitudinal or axial refers to the longitudinal direction of the multi-component cartridge and thus to the Auspressrichtung.

Der Behälter ist erfindungsgemäß derart über den Umfang verteilt abgestützt, dass ein Verkippen des Behälters innerhalb des Rohres beim Auspressen verhindert wird. Die Abstützung erfolgt über ein Anliegen an der Innenseite des Rohres, wobei über die Anlagestellen insbesondere Druck übertragen werden kann. Die Abstützung erfolgt also dadurch, dass gegenüberliegende Punkte der Anlagestellen an der Innenseite des Rohres dafür sorgen, dass es nicht zu einem Verkippen oder Ausknicken des Behälters kommt. Die Mehrkomponentenkartusche gewährt dadurch ein konstantes Mischungsverhältnis beim Auspressen der Masse. Gleichzeitig ist keine Verklebung, Verschweißung oder dgl. des Behälters mit der Innenseite des Rohres erforderlich. Ohne den Erfindungsgedanken zu verlassen kann dennoch eine derartige Fixierung vorgesehen werden, beispielsweise um eine Verdrehung um die Längsachse des Rohres zu verhindern.According to the invention, the container is supported distributed over the circumference such that tilting of the container within the tube during extrusion is prevented. The support is made via a concern on the inside of the tube, in particular pressure can be transmitted via the contact points. The support thus takes place in that opposite points of the contact points on the inside of the tube ensure that there is no tilting or buckling of the container. The multi-component cartridge thereby provides a constant Mixing ratio when pressing the mass. At the same time no gluing, welding or the like. Of the container with the inside of the tube is required. Without departing from the spirit of the invention, however, such a fixation can be provided, for example, to prevent a rotation about the longitudinal axis of the tube.

Der Behälter soll erfindungsgemäß jedoch nicht die gesamte Querschnittsfläche des Rohres ausfüllen, sondern es soll im Wesentlichen über die gesamte Länge des Behälters eine behälterfreie Querschnittsfläche zum Durchfluss einer zweiten Komponente angeordnet sein. Hierdurch wird es möglich, dass eine zweite Komponente der Masse behälterfrei, das heißt zwischen dem Behälter und der Innenwand des Rohres, aufbewahrt und sicher ausgepresst werden kann. Damit wird ein zweiter Behälter eingespart. Soll die Mehrkomponentenkartusche beispielsweise eine dritte oder vierte Komponente beinhalten, so können zusätzlich weitere Behälter vorgesehen werden. In diesem Fall können sich die Behälter auch gegenseitig abstützen, das heißt die Abstützung über den Umfang verteilt an der Innenseite des Rohres erfolgt für die Gesamtheit der Behälter. Anders ausgedrückt kann ein einziger Behälter auch durch zwei oder mehr sich zur gleichen Geometrie ergänzende Einzelbehälter ersetzt werden, wenn die Anzahl der Komponenten dies erfordert.However, the container according to the invention should not fill the entire cross-sectional area of the tube, but it should be arranged over the entire length of the container a container-free cross-sectional area for flow of a second component substantially. This makes it possible that a second component of the mass container-free, that is, between the container and the inner wall of the tube, stored and can be pressed out safely. This saves a second container. If the multicomponent cartridge, for example, include a third or fourth component, so additional containers can be provided in addition. In this case, the containers can also support each other, that is, the support distributed over the circumference on the inside of the tube takes place for the entirety of the container. In other words, a single container can also be replaced by two or more individual containers that supplement each other to the same geometry, if the number of components requires this.

Die Anlagestellen müssen sich nicht über die gesamte Länge des Rohres erstrecken. An Querschnitten mit Anlagestellen sind diese jedoch vorzugsweise symmetrisch über den Umfang verteilt. Hierdurch ergibt sich eine besonders gleichmäßige und somit stabile Abstützung.The abutments do not have to extend over the entire length of the pipe. At cross-sections with contact points, however, these are preferably distributed symmetrically over the circumference. This results in a particularly uniform and thus stable support.

In einer bevorzugten Ausführungsform weist die Mehrkomponentenkartusche am Rohr ein Kopfstück auf, das insbesondere auch die Austrittsöffnung bilden kann. Das Kopfstück kann als Anlagefläche für den Behälter zur Aufnahme der axialen Stauchkräfte dienen. Damit besteht die Gefahr, dass der Behälter an dieser Stelle gleichzeitig abdichtet und die zweite Komponente nicht in Richtung Austrittsöffnung fließen kann. Die Erfindung schlägt daher vor, dass an der Innenseite des Kopfstücks in Richtung des Behälters eine oder mehrere Erhöhungen zur axialen Abstützung des Behälters ausgebildet sind. Zwischen den Erhöhungen ergeben sich Nuten oder dgl. als Durchflusskanäle.In a preferred embodiment, the multi-component cartridge has a head piece on the tube, which can in particular also form the outlet opening. The head piece can serve as a contact surface for the container for receiving the axial compression forces. There is thus the risk that the container seals at this point at the same time and the second component can not flow in the direction of the outlet opening. The invention therefore proposes that one or more elevations for axial support of the container are formed on the inside of the head piece in the direction of the container. Grooves or the like arise between the elevations as flow channels.

Eine besonders gute Kompimierbarkeit des Behälters in Längsrichtung ergibt sich, wenn an diesem Sollknickstellen vorgesehen sind. Der Behälter ist insbesondere faltenbalgartig ausgeführt.A particularly good Kompimierbarkeit the container in the longitudinal direction results when provided at this Sollknickstellen. The container is designed in particular bellows.

Vorzugsweise ist der Behälter als Blasformteil ausgeführt. Denkbar sind aber auch andere Produktionsverfahren, beispielsweise die Herstellung als Spritzgussteil.Preferably, the container is designed as a blow-molded part. However, other production methods are also conceivable, for example the production as an injection-molded part.

Der Behälter weist in einer bevorzugten Ausführungsform einen Auslass auf, der mittig in Bezug auf die Austrittsöffnung angeordnet ist. Hierdurch umfließt die zweite Komponente die erste Komponente beim Auspressen, wodurch die Komponenten sich im Weiteren leicht vermischen lassen. Außerdem wird der Verschluss und eine wirkungsvolle Abdichtung durch eine mittige Anordnung erleichtert. Es ist nicht notwendig, dass die Austrittsöffnung selbst mittig in Bezug auf den Querschnitt des Rohres angeordnet ist, jedoch ergeben sich durch einen solch symmetrischen Aufbau Vereinfachungen bei der Produktion der Mehrkomponentenkartusche.The container has, in a preferred embodiment, an outlet which is arranged centrally with respect to the outlet opening. As a result, the second component flows around the first component during pressing, as a result of which the components can be easily mixed further. In addition, the closure and effective sealing is facilitated by a central arrangement. It is not necessary for the outlet opening itself to be centered with respect to the cross-section of the tube, but such a symmetrical structure results in simplifications in the production of the multi-component cartridge.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels erläutert.The invention will be explained below with reference to an embodiment.

Es zeigen:Show it:

Figur 1FIG. 1
eine erfindungsgemäße Mehrkomponentenkartusche im Längsschnitt;a multi-component cartridge according to the invention in longitudinal section;
Figur 2FIG. 2
den Behälter der Mehrkomponentenkartusche in perspektivischer Darstellung;the container of the multi-component cartridge in perspective view;
Figur 3FIG. 3
ein Querschnitt durch die Mehrkomponentenkartusche entsprechend Pfeilen III aus Figur 1; unda cross section through the multi-component cartridge according to arrows III FIG. 1 ; and
Figur 4FIG. 4
eine alternative Geometrie entsprechend dem Querschnitt aus Figur 3.an alternative geometry according to the cross section FIG. 3 ,

Die in den Figuren dargestellte erfindungsgemäße Mehrkomponentenkartusche 1 dient der Aufbewahrung einer zweikomponentigen, fließfähigen Masse, beispielsweise einer Epoxidharzmasse, wobei die beiden Komponenten getrennt aufbewahrt und gemeinsam mit festem Mischungsverhältnis ausgepresst werden können. Die Masse selbst ist der Übersicht halber nicht dargestellt. Die Mehrkomponentenkartusche weist wie in Figur 1 dargestellt als Grundkörper ein zylindrisches Rohr 2 auf, welches sich an einem Ende einstückig zu einem Kopfstück 3 im Durchmesser reduziert. Durch die Durchmesserreduktion entsteht im Inneren eine Anschlagschulter 4, an die sich ein rohrförmiger, zylindrischer Stutzen 5 mit einem Außengewinde 6 anschließt. Das Außengewinde 6 dient zum Aufschrauben eines Deckels oder eines Statikmischers (nicht dargestellt). An seinem gegenüberliegenden Ende weist das Rohr 2 keine Durchmesseränderung auf. Es wird durch einen einliegenden Kolben 7 verschlossen. Der Kolben 7 ist vereinfacht als zylindrischer Block dargestellt. Tatsächlich weist er eine detailliertere Geometrie mit einer Dichtungslippe, Versteifungsrippen, Entlüftungsbohrung und dgl. auf, worauf es in diesem Zusammenhang jedoch nicht ankommt.The multi-component cartridge 1 according to the invention shown in the figures is used to store a two-component, flowable mass, for example an epoxy resin, wherein the two components can be stored separately and pressed together with a fixed mixing ratio. The mass itself is not shown for clarity. The multi-component cartridge has as in FIG. 1 represented as a basic body, a cylindrical tube 2, which is located at one end reduced in one piece to a head piece 3 in diameter. Due to the diameter reduction arises inside a stop shoulder 4, to which a tubular, cylindrical neck 5 with an external thread 6 connects. The external thread 6 serves to screw on a lid or a static mixer (not shown). At its opposite end, the tube 2 has no change in diameter. It is closed by an inserted piston 7. The piston 7 is shown simplified as a cylindrical block. In fact, it has a more detailed geometry with a sealing lip, stiffening ribs, vent hole and the like on what it does not matter in this context.

Im Rohr 2 liegt ein Behälter 8 in Form eines Blasformteils ein. Zum besseren Verständnis seiner Geometrie ist der Behälter 8 zusätzlich in Figur 2 perspektivisch dargestellt. Der Behälter 8 dient der Aufbewahrung einer ersten Komponente einer Masse. Er hat die Grundform eines zylindrischen Faltenbalgs, das heißt er weist umlaufende Sollknickstellen 9, 10 in Form von faltenartigen Durchmessererweiterungen bzw. - verengungen auf. Die Sollknickstellen 9, 10 können also in konvexe äußere Sollknickstellen 9 und konkave innere Sollknickstellen 10 unterschieden werden. An einem Ende liegt der Behälter 8 am Kolben 7 an. Der Behälter 8 ist an diesem Ende durch eine Rückwand 11 geschlossen. Am gegenüberliegenden Ende liegt der Behälter 8 an der Anschlagschulter 4 des Kopfstücks 3 an. Der Behälter 8 ist darüber hinaus an diesem Ende jedoch soweit im Durchmesser reduziert, dass er sich zu einem rohrförmigen, offenen Auslass 12 mittig durch den Stutzen 5 erstreckt und diesen sogar leicht in Längsrichtung der Mehrkomponentenkartusche 1 überragt. Sein Außendurchmesser ist jedoch etwas geringer als der Innendurchmesser des Stutzens 5, so dass ein ringförmiger Auslasskanal 13 verbleibt. Auslass 12 und Auslasskanal 13 bilden gemeinsam die Austrittsöffnung 14 der Mehrkomponentenkartusche 1 für die Masse. Die zweite Komponente der Masse ist in dem abzüglich des Behälters 8 verbleibenden Raum des Rohres 2 angeordnet. Der Behälter 8 weist an seinen äußeren Sollknickstellen 9 einen Außendurchmesser auf, der in etwa dem Innendurchmesser des Rohres 8 in diesem Bereich entspricht. Insofern verbleibt in diesem Bereich für die zweite Komponente im Wesentlichen nur der Raum in Form von ringförmigen Kammern 15 zwischen den Sollknickstellen 9, 10 des Behälters 8. Damit die Masse zwischen den Kammern 15 fließen kann, sind die äußeren Sollknickstellen 9 über den Umfang verteilt an vier Stellen abgeflacht, das heißt die Sollknickstellen 9 haben in diesem Bereich nicht die Form eines Kreises, sondern bilden sekantenartige Abflachungen 16. Entsprechend weist die Mehrkomponentenkartusche 1 in diesem Bereich eine behälterfreie Querschnittsfläche A auf, wie insbesondere in Figur 3 dargestellt. Dabei bezieht sich die Bezeichnung "behälterfrei" nicht lediglich auf die Wandung des Behälters 8, sondern auch auf das durch den Behälter 8 umschlossene Volumen.In the tube 2 is a container 8 in the form of a blow molding. For a better understanding of its geometry, the container 8 is additionally in FIG. 2 shown in perspective. The container 8 serves to store a first component of a mass. He has the basic shape of a cylindrical bellows, that is, he has circumferential predetermined bending points 9, 10 in the form of pleat-like diameter expansions or - constrictions. The predetermined bending points 9, 10 can thus be differentiated into convex outer predetermined bending points 9 and concave inner predetermined bending points 10. At one end of the container 8 is located on the piston 7. The container 8 is closed at this end by a rear wall 11. At the opposite end of the container 8 abuts against the stop shoulder 4 of the head piece 3. However, the container 8 is also reduced at this end so far in diameter that it extends to a tubular, open outlet 12 centrally through the nozzle 5 and this even extends slightly beyond the longitudinal direction of the multi-component cartridge 1. However, its outer diameter is slightly smaller than the inner diameter of the nozzle 5, so that an annular outlet channel 13 remains. Outlet 12 and outlet channel 13 together form the outlet opening 14 of the multicomponent cartridge 1 for the mass. The second component of the mass is arranged in the remaining space of the tube 2 minus the container 8. The container 8 has at its outer predetermined bending points 9 an outer diameter which corresponds approximately to the inner diameter of the tube 8 in this area. In this respect, essentially only the space in the form of annular chambers 15 between the predetermined bending points 9, 10 of the container 8 remains in this area for the second component. In order for the mass to flow between the chambers 15, the outer predetermined bending points 9 are distributed over the circumference four points flattened, that is, the predetermined bending points 9 do not have the shape of a circle in this area, but form secant-like flattenings 16. Accordingly the multicomponent cartridge 1 in this area a container-free cross-sectional area A, as in particular in FIG. 3 shown. In this case, the term "container-free" refers not only to the wall of the container 8, but also to the volume enclosed by the container 8.

Damit auch ein Durchfluss von den Kammern 15 zum ringförmigen Auslasskanal 13 gewährleistet ist, weist das Kopfstück 3 an seiner dem Behälter 8 zugewandten Innenseite 17, der Anschlagschulter 4, Erhöhungen in Form radial verlaufender Stege 18 auf, die als Widerlager zum Kolben 7 dienen. Zwischen den Stegen 18 sind Durchflusskanäle 19 ausgebildet.Thus, a flow from the chambers 15 is ensured to the annular outlet channel 13, the head piece 3 on its side facing the container 8 inside 17, the stop shoulder 4, elevations in the form of radially extending webs 18, which serve as an abutment to the piston 7. Between the webs 18 flow channels 19 are formed.

Beim Auspressen der Masse wird der Kolben 7 in Richtung der Austrittsöffnung 14 bewegt, beispielsweise mit einer Auspresspistole (nicht dargestellt). Hierdurch verkleinert sich das Volumen innerhalb des Behälters 8 sowie in den Kammern 15, so dass in der Folge die Masse aus der Austrittsöffnung 14 fließt. Die mittige Anordnung des Auslasses 12 innerhalb der Austrittsöffnung 14 bewirkt eine ringförmige Umschließung der ersten Komponente durch die zweite Komponente der Masse. Dies wirkt sich günstig auf die Durchmischung der Komponenten beispielsweise durch einen auf das Außengewinde 6 aufgeschraubten Statikmischer aus. Beim Auspressen der Masse fließt die zweite Komponente im Bereich der Abflachungen 16 von Kammer 15 zu Kammer 15. Über den gesamten Auspressvorgang bilden die äußeren Sollknickstellen 9 Anlagestellen 20 an der Innenseite des Rohres 2. Durch diese Anlagestellen 20 können Druckkräfte übertragen werden. Dadurch, dass sich viele Paare gegenüberliegender Punkte P im Bereich dieser Anlagestellen 20 ergeben, ist der Behälter 8 selbst bei hohen Auspresskräften gegen ein Verkippen zur Längsachse der Mehrkomponentenkartusche 1 gesichert.When pressing the mass of the piston 7 is moved in the direction of the outlet opening 14, for example with a Auspresspistole (not shown). As a result, the volume within the container 8 and in the chambers 15 decreases, so that in the sequence the mass flows out of the outlet opening 14. The central arrangement of the outlet 12 within the outlet opening 14 causes an annular enclosure of the first component by the second component of the mass. This has a favorable effect on the mixing of the components, for example, by a static mixer screwed onto the external thread 6. When pressing the mass, the second component flows in the region of the flats 16 of chamber 15 to chamber 15. Over the entire Auspressvorgang the outer predetermined bending points 9 contact points 20 on the inside of the tube 2. By these contact points 20 pressure forces can be transmitted. Due to the fact that many pairs of opposing points P result in the region of these abutment points 20, the container 8 is secured against tilting relative to the longitudinal axis of the multicomponent cartridge 1 even at high extrusion forces.

Figur 4 zeigt einen alternativen Querschnitt zu Figur 3. Hier ist der Behälter 8' nicht rotationssymmetrisch, sondern es besteht, ausgehend von wiederum der Grundform eines zylindrischen Faltenbalgs, nur an einer Seite der äußeren Sollknickstellen 9' eine Abflachung 16'. Entsprechend sind auch die Anlagestellen 20' nicht symmetrisch über den Umfang verteilt. Auch hier ergeben sich jedoch Paare gegenüberliegender Punkte P' im Bereich der Anlagestellen 20'. Diese Geometrie hat den Vorteil, dass die zweite Komponente aufgrund der Platzverhältnisse leichter befüllt werden kann. FIG. 4 shows an alternative cross section FIG. 3 , Here, the container 8 'is not rotationally symmetrical, but it is, starting again from the basic shape of a cylindrical bellows, only on one side of the outer predetermined bending points 9' a flattening 16 '. Accordingly, the contact points 20 'are not distributed symmetrically over the circumference. Here too, however, pairs of opposite points P 'arise in the region of the contact points 20'. This geometry has the advantage that the second component can be filled more easily due to the space available.

Claims (6)

  1. Multi-component cartridge (1) for the separate storage and for the common discharge of at least two components of a flowable composition, having a tube (2), which is especially cylindrical, for accommodating the composition, having a plunger (7) for discharging the composition and having at least one outlet opening (14) for the composition, the components of the composition being storable separately from one another in the tube (2), and there being arranged in the tube (2) a compressible container (8, 8') for accommodating at least a first component of the composition, and there being arranged over the entire length of the container (8, 8') a container-free cross-sectional area (A, A') through which a second component can flow, characterized in that the container (8, 8') is supported against the inner side of the tube (2) at one or more contact sites (20, 20') distributed around the circumference in such a way that oppositely located points (P, P') of the contact sites (20, 20') on the inner side of the tube (2) ensure that tilting is prevented during the discharge operation.
  2. Multi-component cartridge (1) according to claim 1, characterized in that at sections having contact sites (20) the contact sites (20) are distributed symmetrically around the circumference.
  3. Multi-component cartridge (1) according to claim 1 or 2, characterized in that a head piece (3) is arranged on the tube (2) in the region of the outlet opening (14), on the inner side (17) of which head piece there are formed in the direction of the container (8, 8') one or more raised portions (18) for axially supporting the container (8, 8').
  4. Multi-component cartridge (1) according to any one of claims 1 to 3, characterized in that the container (8, 8') has predetermined fold locations (9, 9'; 10, 10') to allow it to be compressed in the longitudinal direction of the tube (2).
  5. Multi-component cartridge (1) according to any one of claims 1 to 4, characterized in that the container (8, 8') is in the form of a blow-moulded component.
  6. Multi-component cartridge (1) according to any one of claims 1 to 5, characterized in that the container (8, 8') has an outlet (12) which is arranged centrally with respect to the outlet opening (14).
EP09401045A 2008-12-19 2009-12-03 Multi-component cartridge Not-in-force EP2199228B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09401045T PL2199228T3 (en) 2008-12-19 2009-12-03 Multi-component cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008064050A DE102008064050A1 (en) 2008-12-19 2008-12-19 Multicomponent cartridge

Publications (2)

Publication Number Publication Date
EP2199228A1 EP2199228A1 (en) 2010-06-23
EP2199228B1 true EP2199228B1 (en) 2011-10-12

Family

ID=42026264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09401045A Not-in-force EP2199228B1 (en) 2008-12-19 2009-12-03 Multi-component cartridge

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EP (1) EP2199228B1 (en)
AT (1) ATE528231T1 (en)
DE (1) DE102008064050A1 (en)
ES (1) ES2373362T3 (en)
PL (1) PL2199228T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2491405A (en) * 2011-06-03 2012-12-05 Fastfix It Entpr Co Ltd Two-part substance dispensing cartridge
DE102014013679A1 (en) * 2013-10-16 2015-04-16 Fischerwerke Gmbh & Co. Kg Multicomponent cartridge

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200542A1 (en) * 1982-01-11 1983-07-21 Teroson Gmbh, 6900 Heidelberg METHOD FOR EMPTYING CARTRIDGE-LIKE CONTAINERS AND CONTAINERS FOR IMPLEMENTING THE METHOD
DE69415293T2 (en) * 1993-08-20 1999-05-06 Wilhelm A Keller MULTI-COMPONENT MEASURING AND DOSING DEVICE WITH FOLDING CARTRIDGE
US5405056A (en) * 1994-04-01 1995-04-11 Mills; Gregory B. Stereo dispensing container and system
DE19742890A1 (en) * 1997-09-29 1999-04-01 Christa Friedrich Atomizer dispenser
DE19943877B4 (en) * 1999-09-14 2008-08-07 Alfred Fischbach Kg Kunststoff-Spritzgusswerk Two-component cartridge for flowable media
WO2003057581A1 (en) * 2002-01-07 2003-07-17 Choong-Hyun Jung Container for discharging paste therefrom
ITMI20021287A1 (en) * 2002-06-11 2003-12-11 Bossong Spa CARTRIDGE FOR MULTI-COMPONENT SYNTHETIC RESINS, IN PARTICULAR FOR CHEMICAL ANCHORAGE
DE102004056908A1 (en) 2004-11-25 2006-06-01 Fischerwerke Artur Fischer Gmbh & Co. Kg Multicomponent cartridge
DE102005017599A1 (en) * 2005-04-16 2006-10-19 Fischerwerke Artur Fischer Gmbh & Co. Kg Multicomponent cartridge

Also Published As

Publication number Publication date
ES2373362T3 (en) 2012-02-02
ATE528231T1 (en) 2011-10-15
EP2199228A1 (en) 2010-06-23
DE102008064050A1 (en) 2010-06-24
PL2199228T3 (en) 2012-03-30

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