EP0467830B1 - Multi-dispensing cartridge for multicomponent pastes - Google Patents

Multi-dispensing cartridge for multicomponent pastes Download PDF

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Publication number
EP0467830B1
EP0467830B1 EP91810512A EP91810512A EP0467830B1 EP 0467830 B1 EP0467830 B1 EP 0467830B1 EP 91810512 A EP91810512 A EP 91810512A EP 91810512 A EP91810512 A EP 91810512A EP 0467830 B1 EP0467830 B1 EP 0467830B1
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EP
European Patent Office
Prior art keywords
dispensing
insert
channel
double
cartridge according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP91810512A
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German (de)
French (fr)
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EP0467830A1 (en
Inventor
Wilhelm A. Keller
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like

Definitions

  • the present invention relates to a double or multiple discharge cartridge for two- or multi-component compositions according to the preamble of claim 1.
  • a double discharge cartridge with these features is known from EP-A-0 294 672.
  • For double cartridges with storage cylinders of different cross-sections it is disclosed to dimension the output cross-sections of the discharge channels in the same ratio to one another as the cross-sections of the storage cylinders, this being done in that the discharge channel connected to the smaller storage cylinder is provided with an inclined wall.
  • the mass located in this discharge channel is approximately the same with the same cross-section of the channels, so that an exact setting of the mixing ratio is not possible.
  • EP-A-0 302 819 discloses a cartridge system which consists of two separately designed magazines which are combined before use and have a common, separately manufactured outlet nozzle. Although the pouring channels are drawn with different cross sections, this document contains no information about their relationship or meaning.
  • EP-A-0 340 493 discloses the mixing of two components from two chambers of the same size, which may, however, have outlets with different outlet openings.
  • the double discharge cartridge 1 has two storage cylinders 2 and 3, the cross-sectional areas of the storage cylinders in the present example being in a ratio of 10 to 1.
  • the outlet openings 4 and 5 of the cylinders 2 and 3 are approximately the same size, ie they have approximately the same light width. Since the discharge channels can also hold approximately the same volume in previously known double cartridges, it takes much longer after the closure has been removed for this volume to be filled up from the small cartridge and thus much more mass comes in from the large cartridge during this time the mixer, whereby the mixing ratio of the two components is not exact.
  • the two mouths of the discharge channels are shown and it can be seen that the Outlet mouth 4 of the channel of the large storage cylinder 2 is unchanged and corresponds to the light width of the outlet opening of this cylinder, while the mouth 6 has a cross section which corresponds to a tenth of the cross section of the large storage cylinder. It is possible to spray outlet openings or discharge channels with these two diameters directly, but this leads to shrinkage and other problems, especially in the case of high mixing ratios as a result of large material accumulations.
  • the central wall 10 of the transition piece which emerges from the union of the two supply cylinder walls 46 and 47, protrudes beyond the cylindrical wall 11 with the thread 12 and is somewhat tapered. It is clear from FIGS. 1 or 3 that the two separate walls only unite after the closure region, ie above the two closure parts on the closure 32, in order to produce the middle wall 10. This prevents diffusion of the various components before mixing.
  • the outer wall 11 of the transition piece does not open directly on the end faces 13 and 14 of the storage cylinder but in a flange 15 which is connected to the flange via a transition structure 16 Front of the storage cylinder is connected.
  • the flange and the transition structure are adaptation parts to the discharge devices.
  • a union nut 19 is also drawn, which, among other things, attaches the mixer tube 20 to the transition piece.
  • the mixer tube 20 is known per se and can, for example, contain helical elements in order to achieve thorough mixing of the components.
  • the ratio of the light widths, i.e. the mouths 4 and 6 of the discharge channels is determined by an insert 21 which is inserted into the outlet opening 5 of the smaller storage cylinder 3.
  • the outlet opening 4 of the larger cylinder does not contain such an insert, because it can be used as a reference opening each time.
  • the insert extends over the entire length of the transition piece and ends at the top with its tapered end wall 22 flush with the middle wall 10 and, at its other end on the cylinder side, on its outer wall 23 adapted to the inner wall of the transition piece, has a shoulder 24 which connects the inner wall 25 engages behind the end face 14 of the smaller storage cylinder, whereby the insert is secured.
  • the lower part of the insert, at the shoulder 24, has a slot 26 in order to achieve a resilient effect.
  • the side 27 of the insert facing the middle wall 10 has two shoulders 28 and 29, the second shoulder 29 on the supply cylinder side resting on a corresponding shoulder 30.
  • the two shoulders 30 and 44 are formed by the top of flange 15, see FIG. 4.
  • the insert 21 has in its center a cylindrical insert channel 31 whose cross-sectional ratio to the discharge channel of the larger supply cylinder is the same as the ratio of the cross-section of the smaller one Storage cylinder to the larger one.
  • the two openings are closed by a closure 32, the openings being closed at the level of the inner walls of the end faces of the storage cylinders.
  • the closure 32 consists of a rod-shaped part 33, the lower, cylindrical end 36 of which is adapted to the insert channel 31, and of a pin part 34 which is adapted to the discharge channel or the outlet opening 4 of the larger cylinder 2.
  • the lowermost part of the pin 34 has a cavity 38, in order to avoid material accumulation.
  • the rod-shaped part 33 and the pin part 34 are each closed at the top by a shoulder 39 or collar 40, these two parts being supported in the inserted state on the upper end of the outer wall 11 of the transition piece.
  • a shoulder 39 or collar 40 Above the shoulder or collar there is a rib 45, on which the union nut 19 acts to press the closure.
  • the shoulder 39 runs in a corresponding groove 41 in the beveled end face 22 of the insert. Both closure parts are connected to one another via a head 35 and the entire closure is injection-molded in one piece.
  • the inner wall 42 of the pin part 34 which comes to rest along the middle wall 10, has a shoulder 43 which can be supported on the corresponding shoulder 44 of the flange 15.
  • the specified measures can ensure a secure and firm closure be guaranteed.
  • the mixer tube 20 is fastened to the transition piece by means of the union nut 19, and the double cartridge, as shown in FIG. 5, is ready for discharge in the correct mixing ratio without the material having to be thrown away.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Package Specialized In Special Use (AREA)

Description

Die vorliegende Erfindung bezieht sich auf eine Doppel- oder Mehrfachaustragkartusche für Zwei- oder Mehrkomponentenmassen gemäss Oberbegriff von Anspruch 1. Eine Doppel-Austragkartusche mit diesen Merkmalen ist aus der EP-A- 0 294 672 bekannt. Dort ist für Doppelkartuschen mit Vorratszylinder mit verschiedenem Querschnitt offenbart, die Ausgangsquerschnitte der Austragkanäle im gleichen Verhältnis zueinander zu bemessen wie die Querschnitte der Vorratszylinder, wobei dies dadurch geschieht, dass der mit dem kleineren Vorratszylinder verbundene Austragkanal mit einer schräg verlaufenden Wand versehen ist. Die in diesem Austragkanal sich befindliche Masse jedoch ist bei gleichem Querschnitt der Kanäle etwa die gleiche, wodurch ein genaues Einstellen des Mischverhältnisses nicht möglich ist.The present invention relates to a double or multiple discharge cartridge for two- or multi-component compositions according to the preamble of claim 1. A double discharge cartridge with these features is known from EP-A-0 294 672. For double cartridges with storage cylinders of different cross-sections, it is disclosed to dimension the output cross-sections of the discharge channels in the same ratio to one another as the cross-sections of the storage cylinders, this being done in that the discharge channel connected to the smaller storage cylinder is provided with an inclined wall. However, the mass located in this discharge channel is approximately the same with the same cross-section of the channels, so that an exact setting of the mixing ratio is not possible.

Die EP-A-0 302 819 offenbart ein Kartuschensystem, das aus zwei separat ausgebildeten Magazinen besteht, die vor Gebrauch vereint werden und einen gemeinsamen, separat gefertigten Ausgangstutzen aufweisen. Obwohl die Ausgusskanäle mit verschiedenen Querschnitten gezeichnet sind, enthält diese Schrift keinerlei Angabe über deren Verhältnis oder Bedeutung.EP-A-0 302 819 discloses a cartridge system which consists of two separately designed magazines which are combined before use and have a common, separately manufactured outlet nozzle. Although the pouring channels are drawn with different cross sections, this document contains no information about their relationship or meaning.

Die EP-A-0 340 493 offenbart das Mischen von zwei Komponenten aus zwei gleich grossen Kammern, die jedoch Auslässe mit verschiedenen Auslassöffnungen haben können.EP-A-0 340 493 discloses the mixing of two components from two chambers of the same size, which may, however, have outlets with different outlet openings.

Bei anderen auf dem Markt befindlichen Doppelkartuschen, z. B. gemäss EP-A-294 672, wird die exakte Dosierung der Komponenten über den exakten Vorschub der Schubstangen und somit der Kolben vorgenommen, und es wird kein Gewicht auf die Volumina der Austragkanäle gelegt. Daher werden in der Regel die Austrittsöffnungen aus spritztechnischen Gründen unabhängig vom Querschnitt der Vorratszylinder in etwa gleich bemessen und dies führt dazu, dass beim Beginn des Austragvorganges mehr Masse aus der grösseren Kartusche in das Mischerrohr gelangt, und somit ein gewisses Anfangsvolumen unbrauchbar ist und weggeworfen werden muss. Dies führt, abgesehen vom Materialverlust, zur unnötigen Verschmutzung durch in der Regel unaushärtbare Masse und zu Unsicherheit über das Mischen im richtigen Verhältnis.With other double cartridges on the market, e.g. B. according to EP-A-294 672, the exact dosage of the components is carried out via the exact feed of the push rods and thus the piston, and no weight is placed on the volumes of the discharge channels. For this reason, the outlet openings generally become roughly irrespective of the cross section of the storage cylinders for reasons of injection technology dimensioned the same and this leads to the fact that at the beginning of the discharge process, more mass gets from the larger cartridge into the mixer tube, and thus a certain initial volume is unusable and has to be discarded. Apart from the loss of material, this leads to unnecessary soiling due to the generally curable mass and to uncertainty about mixing in the correct ratio.

Es ist von diesem genannten Stand der Technik ausgehend Aufgabe der vorliegenden Erfindung, eine Doppel-Austragkartusche anzugeben, die von Anfang an ein richtiges Mischverhältnis ermöglicht und somit eine Verwertung des gesamten Inhalts der Austragkartuschen gewährleistet, und wobei die Herstellung der Austragkanäle mit dem richtigen Volumen, bzw. Querschnitt, insbesondere bei Kartuschen mit stark unterschiedlichem Volumen bzw. Querschnitt, vereinfacht und genau durchführbar ist. Diese Aufgabe wird mit der Kartusche gemäss Patentanspruch 1 gelöst. Weitere Vorteile und Ausbildungen sind in den abhängigen Ansprüchen angegeben. kartuschen gewährleistet.Based on this prior art, it is the object of the present invention to provide a double discharge cartridge which enables a correct mixing ratio from the outset and thus ensures that the entire contents of the discharge cartridges are used, and the production of the discharge channels with the correct volume, or cross-section, in particular in the case of cartridges with a very different volume or cross-section, is simplified and can be carried out precisely. This object is achieved with the cartridge according to claim 1. Further advantages and training are specified in the dependent claims. cartridges guaranteed.

Die Erfindung wird an Hand einer Zeichnung eines Ausführungsbeispiels erläutert.

Fig. 1
zeigt im Längsschnitt den erfindungswesentlichen Teil einer Doppel-Austragkartusche,
Fig. 2
zeigt einen Schnitt gemäss der Linie II-II in Fig. 1,
Fig. 3
zeigt einen weiteren Längsschnitt der Kartusche von Fig. 1 ohne Ueberwurfmutter,
Fig. 4
zeigt in einer Ansicht von Vorne die beiden Austrittsöffnungen der Vorratszylinder,
Fig. 5
zeigt einen Längsschnitt der Doppel-Austragkartusche im funktionsbereiten Zustand mit der Ueberwurfmutter und dem Mischerrohr und,
Fig. 6
zeigt in einer Sicht von Vorne die beiden Austrittskanäle.
The invention is explained with reference to a drawing of an embodiment.
Fig. 1
shows in longitudinal section the essential part of the invention of a double discharge cartridge,
Fig. 2
shows a section along the line II-II in Fig. 1,
Fig. 3
1 shows a further longitudinal section of the cartridge from FIG. 1 without a union nut,
Fig. 4
shows a front view of the two outlet openings of the storage cylinders,
Fig. 5
shows a longitudinal section of the double discharge cartridge in the operational state with the union nut and the mixer tube and,
Fig. 6
shows the two outlet channels in a view from the front.

Die Doppel-Austragkartusche 1 weist zwei Vorratszylinder 2 und 3 auf, wobei die Querschnittsflächen der Vorratszylinder in vorliegendem Beispiel in einem Verhältnis von 10 zu 1 stehen. Wie aus Fig. 4 hervorgeht, sind die Austrittsöffnungen 4 und 5 der Zylinder 2 und 3 ungefähr gleich gross, d.h. sie haben ungefähr die gleiche Lichtweite. Da in vorbekannten Doppel-Kartuschen auch die Austragkanäle in etwa das gleiche Volumen aufnehmen können, braucht es nach dem Entfernen des Verschlusses viel länger, bis dieses Volumen aus der kleinen Kartusche aufgefüllt ist und somit gelangt in dieser Zeit viel mehr Masse aus der grossen Kartusche in den Mischer, wodurch das Mischverhältnis beider Komponenten nicht genau ist. In Fig. 6 sind die beiden Mündungen der Austragkanäle dargestellt und man erkennt, dass die Austrittsmündung 4 des Kanals des grossen Vorratszylinders 2 unverändert ist und mit der Lichtweite der Austrittsöffnung dieses Zylinders übereinstimmt, während die Mündung 6 einen Querschnitt aufweist, der einem Zehntel des Querschnittes des grossen Vorratszylinders entspricht. Es ist möglich, Austrittsöffnungen, respektive Austragkanäle mit diesen beiden Durchmessern direkt zu spritzen, doch führt dies besonders bei hohen Mischverhältnissen infolge grosser Materialanhäufungen zu Schwund- und anderen Problemen.The double discharge cartridge 1 has two storage cylinders 2 and 3, the cross-sectional areas of the storage cylinders in the present example being in a ratio of 10 to 1. As can be seen from FIG. 4, the outlet openings 4 and 5 of the cylinders 2 and 3 are approximately the same size, ie they have approximately the same light width. Since the discharge channels can also hold approximately the same volume in previously known double cartridges, it takes much longer after the closure has been removed for this volume to be filled up from the small cartridge and thus much more mass comes in from the large cartridge during this time the mixer, whereby the mixing ratio of the two components is not exact. In Fig. 6, the two mouths of the discharge channels are shown and it can be seen that the Outlet mouth 4 of the channel of the large storage cylinder 2 is unchanged and corresponds to the light width of the outlet opening of this cylinder, while the mouth 6 has a cross section which corresponds to a tenth of the cross section of the large storage cylinder. It is possible to spray outlet openings or discharge channels with these two diameters directly, but this leads to shrinkage and other problems, especially in the case of high mixing ratios as a result of large material accumulations.

Im folgenden wird anhand des Ausführungsbeispiels eine Lösung zur wirtschaftlichen Herstellung von Austragkanalmündungen im Verhältnis der Komponentenmassen, respektive Kartuschenquerschnitte erläutert, wobei diese Lösung insbesondere bei Querschnittsverhältnissen von grösser als 2:1 vorteilhaft ist. Die beiden Vorratszylinder 2 und 3 werden einstückig mit dem Uebergangstück 7 gespritzt. Wie aus den Figuren hervorgeht, sind die beiden Austrittsöffnungen 4 und 5, die in die beiden Austragkanäle 8 und 9 münden, in etwa gleich, wie für das Vehältnis 1:1 erforderlich.In the following, a solution for the economical production of discharge channel orifices in the ratio of the component masses or cartridge cross-sections is explained on the basis of the exemplary embodiment, this solution being advantageous in particular in the case of cross-sectional ratios of greater than 2: 1. The two storage cylinders 2 and 3 are injection-molded in one piece with the transition piece 7. As can be seen from the figures, the two outlet openings 4 and 5, which open into the two discharge channels 8 and 9, are approximately the same as required for the vehicle 1: 1.

Die Mittelwand 10 des Uebergangstücks, die aus der Vereinigung der beiden Vorratszylinderwände 46 bzw. 47 hervorgeht, ragt über die zylindrische Wand 11 mit dem Gewinde 12 hervor, und ist um etwas zugespitzt. Aus den Figuren 1 oder 3 geht deutlich hervor, dass die beiden getrennten Wände sich erst nach dem Verschlussbereich, d.h. oberhalb der beiden Verschlussteile am Verschluss 32, vereinen, um die Mittelwand 10 zu ergeben. Dadurch wird eine Diffusion der verschiedenen Komponenten vor dem Mischen ausgeschlossen. Die Aussenwand 11 des Uebergangstücks mündet nicht direkt an den Stirnseiten 13 und 14 der Vorratszylinder sondern in einen Flansch 15, der über eine Uebergangstruktur 16 mit der Stirnseite der Vorratszylinder verbunden ist. Der Flansch und die Uebergangstruktur sind Anpassungsteile an die Austragsgeräte. In Fig. 1 oder 5 ist ferner eine Ueberwurfmutter 19 eingezeichnet, die unter anderem das Mischerrohr 20 am Uebergangsstück befestigt. Das Mischerrohr 20 ist an sich bekannt und kann beispielsweise wendelförmige Elemente enthalten, um eine Durchmischung der Komponenten zu erzielen.The central wall 10 of the transition piece, which emerges from the union of the two supply cylinder walls 46 and 47, protrudes beyond the cylindrical wall 11 with the thread 12 and is somewhat tapered. It is clear from FIGS. 1 or 3 that the two separate walls only unite after the closure region, ie above the two closure parts on the closure 32, in order to produce the middle wall 10. This prevents diffusion of the various components before mixing. The outer wall 11 of the transition piece does not open directly on the end faces 13 and 14 of the storage cylinder but in a flange 15 which is connected to the flange via a transition structure 16 Front of the storage cylinder is connected. The flange and the transition structure are adaptation parts to the discharge devices. In Fig. 1 or 5, a union nut 19 is also drawn, which, among other things, attaches the mixer tube 20 to the transition piece. The mixer tube 20 is known per se and can, for example, contain helical elements in order to achieve thorough mixing of the components.

Das Verhältnis der Lichtweiten, d.h. der Mündungen 4 und 6 der Austragkanäle, wird durch einen Einsatz 21 bestimmt, der in der Austrittsöffnung 5 des kleineren Vorratszylinders 3 eingesteckt ist. Normalerweise enthält die Austrittsöffnung 4 des grösseren Zylinders keinen solchen Einsatz, denn sie kann jedesmal als Bezugsöffnung verwendet werden. Der Einsatz erstreckt sich über die ganze Länge des Uebergangstücks und schliesst oben mit seiner zugespitzten Stirnwand 22 bündig mit der Mittelwand 10 ab und weist an seinem anderen, vorratszylinderseitigen Ende an seiner der Innenwand des Uebergangstückes angepassten Aussenwand 23 eine Schulter 24 auf, die die Innenwand 25 der Stirnseite 14 des kleineren Vorratszylinder hintergreift, womit der Einsatz gesichert ist. Der untere Teil des Einsatzes, bei der Schulter 24, weist einen Schlitz 26 auf, um eine federnde Wirkung zu erzielen. Die der Mittelwand 10 zugewandte Seite 27 des Einsatzes weist zwei Absätze 28 und 29 auf, wobei der zweite, vorratszylinderseitige Absatz 29 an einem entsprechenden Absatz 30 aufliegt. Die beiden Absätze 30 und 44 werden durch die Oberseite von Flansch 15 gebildet, siehe Fig. 4.The ratio of the light widths, i.e. the mouths 4 and 6 of the discharge channels is determined by an insert 21 which is inserted into the outlet opening 5 of the smaller storage cylinder 3. Normally, the outlet opening 4 of the larger cylinder does not contain such an insert, because it can be used as a reference opening each time. The insert extends over the entire length of the transition piece and ends at the top with its tapered end wall 22 flush with the middle wall 10 and, at its other end on the cylinder side, on its outer wall 23 adapted to the inner wall of the transition piece, has a shoulder 24 which connects the inner wall 25 engages behind the end face 14 of the smaller storage cylinder, whereby the insert is secured. The lower part of the insert, at the shoulder 24, has a slot 26 in order to achieve a resilient effect. The side 27 of the insert facing the middle wall 10 has two shoulders 28 and 29, the second shoulder 29 on the supply cylinder side resting on a corresponding shoulder 30. The two shoulders 30 and 44 are formed by the top of flange 15, see FIG. 4.

Der Einsatz 21 weist in seiner Mitte einen zylindrischen Einsatzkanal 31 auf, dessen Querschnittsverhältnis zum Austragskanal des grösseren Vorratszylinders das gleiche ist wie das Verhältnis des Querschnittes des kleineren Vorratszylinders zum grösseren.The insert 21 has in its center a cylindrical insert channel 31 whose cross-sectional ratio to the discharge channel of the larger supply cylinder is the same as the ratio of the cross-section of the smaller one Storage cylinder to the larger one.

Die beiden Oeffnungen werden durch einen Verschluss 32 verschlossen, wobei die Oeffnungen auf der Höhe der Innenwände der Stirnseiten der Vorratszylinder verschlossen werden. Der Verschluss 32 besteht aus einem stabförmigen Teil 33, dessen unteres, zylindrisches Ende 36 dem Einsatzkanal 31 angepasst ist, sowie aus einem Zapfenteil 34, der dem Austragkanal, respektive der Austrittsöffnung 4 des grösseren Zylinders 2, angepasst ist. Der unterste Teil des Zapfens 34 weist einen Hohlraum 38 auf, zur Vermeidung von Materialanhäufung.The two openings are closed by a closure 32, the openings being closed at the level of the inner walls of the end faces of the storage cylinders. The closure 32 consists of a rod-shaped part 33, the lower, cylindrical end 36 of which is adapted to the insert channel 31, and of a pin part 34 which is adapted to the discharge channel or the outlet opening 4 of the larger cylinder 2. The lowermost part of the pin 34 has a cavity 38, in order to avoid material accumulation.

Der stabförmige Teil 33 und das Zapfenteil 34 werden nach oben je durch einen Absatz 39, bzw. Kragen 40, abgeschlossen, wobei sich diese beiden Teile im eingesetzten Zustand auf dem oberen Abschluss der Aussenwand 11 des Uebergangstücks abstützen. Oberhalb des Absatzes, bzw. Kragen befindet sich je eine Rippe 45, auf die die Ueberwurfmutter 19 wirkt, um den Verschluss anzupressen. Der Absatz 39 läuft in einer entsprechenden Nut 41 in der abgeschrägten Stirnseite 22 des Einsatzes. Beide Verschlussteile sind über einen Kopf 35 miteinander verbunden und der ganze Verschluss ist einstückig gespritzt.The rod-shaped part 33 and the pin part 34 are each closed at the top by a shoulder 39 or collar 40, these two parts being supported in the inserted state on the upper end of the outer wall 11 of the transition piece. Above the shoulder or collar there is a rib 45, on which the union nut 19 acts to press the closure. The shoulder 39 runs in a corresponding groove 41 in the beveled end face 22 of the insert. Both closure parts are connected to one another via a head 35 and the entire closure is injection-molded in one piece.

Bei dünnflüssigen Materialien kann es vorteilhaft, bzw. erforderlich sein, sowohl den stabförmigen Teil 33 als auch das Zapfenteil 34 oben mit je einer Dichtlippe 17, bzw. 18 zu versehen.In the case of low-viscosity materials, it may be advantageous or necessary to provide both the rod-shaped part 33 and the pin part 34 at the top with a sealing lip 17 or 18.

Die innere Wand 42 des Zapfenteils 34, die entlang der Mittelwand 10 zu liegen kommt, weist einen Absatz 43 auf, der sich auf dem entsprechenden Absatz 44 von Flansch 15 abstützen kann. Durch die angegebenen Massnahmen kann ein sicherer und fester Verschluss gewährleistet werden.The inner wall 42 of the pin part 34, which comes to rest along the middle wall 10, has a shoulder 43 which can be supported on the corresponding shoulder 44 of the flange 15. The specified measures can ensure a secure and firm closure be guaranteed.

Nach dem Entfernen des Verschlusses wird das Mischerrohr 20 mittels der Uberwurfmutter 19 am Uebergangstück befestigt und die Doppelkartusche ist wie in Figur 5 dargestellt zum Austragen im richtigen Mischverhältnis bereit, ohne das Material weggeworfen werden muss.After the closure has been removed, the mixer tube 20 is fastened to the transition piece by means of the union nut 19, and the double cartridge, as shown in FIG. 5, is ready for discharge in the correct mixing ratio without the material having to be thrown away.

Die Erfindung wurde zwar anhand einer Doppelaustragkartusche für Zweikomponentenmassen erläutert, doch können die Merkmale der Erfindung von jedem Fachmann für eine Mehrfachkartusche, d.h. mit mehr als zwei Vorratszylindern, und für Mehrkomponenten ausgeführt werden. Selbstverständlich kommen auch andere Querschnittsverhältnisse der Vorratszylinder als 10:1 in Frage.Although the invention has been explained with reference to a double discharge cartridge for two-component compositions, the features of the invention can be used by any person skilled in the art for a multiple cartridge, i.e. with more than two storage cylinders, and for multi-components. Of course, cross-sectional ratios other than 10: 1 are also possible.

Claims (6)

  1. Double or multiple dispensing cartridge for two- or multicomponent substances, comprising storage cylinders having different volumes and a respective dispensing opening each, as well as a connecting piece for the attachment of a mixer tube, said connecting piece being arranged in front of said storage cylinders and having a common outlet for said components as well as dispensing channels which are connected to said dispensing openings, the ratio of the dispensing cross-sections of said dispensing channels corresponding to the cross-sectional ratio of the associated storage cylinders (2, 3), characterised in that the volumetric ratio of the dispensing channels (4, 6) corresponds to the volumetric ratio of the storage cylinders, and the cross-sectional adaptation of at least the dispensing channel (6) of the storage cylinder having a smaller volume (3) is obtained by an insert (21) which is mounted in the corresponding dispensing channel (9), said insert extending all the way from the dispensing opening of the corresponding storage cylinder to the upper end of said connecting piece (7) and comprising an insert channel (31) having the desired volume.
  2. Double dispensing cartridge according to claim 1, characterised in that said insert (21) comprises a shoulder (24) for engagement behind the internal front side wall at its end facing the storage cylinders.
  3. Double dispensing cartridge according to claim 1 or 2, characterised in that the dispensing channel (8) of the larger storage cylinder (2) and the insert (21) in the dispensing channel (9) of the smaller storage cylinder (3) are capable of being closed by a closure (32) comprising a peg portion (34) which is adapted to the dispensing channel (8) resp. to the dispensing opening (4) of the larger storage cylinder (2), as well as a bar-shaped portion (33) having a lower end (36) which is adapted to the insert channel (31).
  4. Double dispensing cartridge according to claim 3, characterised in that said peg portion (34) has a collar (40) and said bar-shaped portion (33) has a stepped portion (39) resting on the upper end of said connecting piece (7), and both portions have a respective upper rib (45) on which the coupling nut (19) securing the mixer tube (20) acts, and in that closure is a single injection-moulded piece.
  5. Double dispensing cartridge according to claim 3 or 4, characterised in that said bar-shaped portion (33) and said peg portion (34) are provided with a respective sealing lip (17, 18) at their ends facing the mixer.
  6. Multiple dispensing cartridge according to any one of claims 1 to 5, characterised in that the walls (46, 47) of the individual storage cylinders (2, 3) extend beyond the area of said closure (32).
EP91810512A 1990-07-20 1991-07-01 Multi-dispensing cartridge for multicomponent pastes Expired - Lifetime EP0467830B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2426/90A CH681146A5 (en) 1990-07-20 1990-07-20
CH2426/90 1990-07-20

Publications (2)

Publication Number Publication Date
EP0467830A1 EP0467830A1 (en) 1992-01-22
EP0467830B1 true EP0467830B1 (en) 1996-05-15

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EP91810512A Expired - Lifetime EP0467830B1 (en) 1990-07-20 1991-07-01 Multi-dispensing cartridge for multicomponent pastes

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US (1) US5228599A (en)
EP (1) EP0467830B1 (en)
JP (1) JP2952529B2 (en)
CH (1) CH681146A5 (en)
DE (1) DE59107802D1 (en)

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US5609271A (en) * 1995-01-25 1997-03-11 Wilhelm A. Keller Mixer and multiple component dispensing device assembly and method for the aligned connection of the mixer to the multiple component dispensing device
DE69523561T2 (en) * 1995-03-07 2002-04-11 Wilhelm A Keller Bayonet connector for attaching an accessory to a multi-component cartridge or dispenser
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US5918772A (en) * 1995-03-13 1999-07-06 Wilhelm A. Keller Bayonet fastening device for the attachment of an accessory to a multiple component cartridge or dispensing device
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US20070025181A1 (en) * 2003-06-03 2007-02-01 Mixpac Systems Ag Device for connecting a tubule to a mixer
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JP5172514B2 (en) 2008-07-15 2013-03-27 株式会社ジーシー Mixing chip
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US8899446B2 (en) * 2010-04-28 2014-12-02 Integra Adhesives Inc. Apparatus for mixing and dispensing multiple flowable components
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US9522368B2 (en) * 2010-10-26 2016-12-20 Kettenbach Gmbh & Co. Double cartridge, mixer therefor and combination of double cartridge and mixer
BE1020815A3 (en) * 2012-07-04 2014-05-06 Evs Polyservice Bvba METHOD AND APPARATUS FOR APPLYING POLYURETHANE FOAM IN A SPUGE.
US8960501B2 (en) * 2012-10-23 2015-02-24 Nordson Corporation Dispensing assembly and method for dispensing a mixed fluid
US9138772B2 (en) 2012-10-31 2015-09-22 Nordson Corporation Dispensing assembly and method using snap engagement of a mixer and a cartridge
JP5973365B2 (en) 2013-03-01 2016-08-23 株式会社ジーシー Dental mixer
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GB2530476A (en) 2014-07-15 2016-03-30 Cox Ltd Multicomponent dispenser
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PL3090962T3 (en) * 2015-05-06 2018-05-30 Tomil S.R.O. Cleaning agent dispenser
US10281074B2 (en) * 2016-01-14 2019-05-07 Nordson Corporation Adapters for connecting a separated-outlet fluid cartridge to a single-inlet mixer, and related methods
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Also Published As

Publication number Publication date
JPH04239477A (en) 1992-08-27
DE59107802D1 (en) 1996-06-20
EP0467830A1 (en) 1992-01-22
US5228599A (en) 1993-07-20
JP2952529B2 (en) 1999-09-27
CH681146A5 (en) 1993-01-29

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