EP1063172A2 - Double dispensing cartridge with mixing device - Google Patents

Double dispensing cartridge with mixing device Download PDF

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Publication number
EP1063172A2
EP1063172A2 EP00110745A EP00110745A EP1063172A2 EP 1063172 A2 EP1063172 A2 EP 1063172A2 EP 00110745 A EP00110745 A EP 00110745A EP 00110745 A EP00110745 A EP 00110745A EP 1063172 A2 EP1063172 A2 EP 1063172A2
Authority
EP
European Patent Office
Prior art keywords
valve body
valve
nozzle
cartridge
double discharge
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.)
Withdrawn
Application number
EP00110745A
Other languages
German (de)
French (fr)
Other versions
EP1063172A3 (en
Inventor
Wolfgang Koch
Rainer Jakob
Joachim Dr. Schätzle
Christian Weber
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 Artur Fischer GmbH and Co KG
Original Assignee
Fischerwerke Artur Fischer 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 Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP1063172A2 publication Critical patent/EP1063172A2/en
Publication of EP1063172A3 publication Critical patent/EP1063172A3/en
Withdrawn legal-status Critical Current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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/22—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with two or more compartments
    • 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

Definitions

  • the invention relates in particular to a double discharge cartridge with a mixing device for polyurethane systems according to the preamble of claim 1.
  • the invention is therefore based on the object of a double discharge cartridge for To create two-component systems that block the outlet openings and prevent the components from flowing back into the cartridge, so that the cartridge can be used again even after work breaks.
  • the check valve is moved by a movable one arranged at the outlet opening Valve flap formed, the outlet opening in the unloaded state covers. It is expedient to arrange the valve flaps on a valve body on, the nozzle of the cartridge can be placed.
  • the valve flaps and the valve body can be made in one piece as an injection molded part from a highly elastic plastic his. In a further embodiment of the invention, however, it is also possible the valve flaps from a resilient material as separate parts produce the inserted in corresponding pockets on the valve body are.
  • the valve body 1 shown in Figure 1 is in one piece as an injection molded part made of plastic manufactured.
  • the two are semicircular in cross section and through the slot 2 separate plug-on parts 3, 4 are provided with outlet channels 5, 6, which correspond to the corresponding Outlet openings 7, 8 of the cartridge 9 after placing the Align valve body 1.
  • the two plug-on parts 3, 4 are connected to one another via the web 10 connected. Both sides of the outlet channels 5, 6 are angular on the valve body 1 Injection molded valve flaps 11, 12. If the valve body 1 on the nozzle 14 of the Cartridge 9 placed, the valve flaps 11, 12 are erected so that they Cover outlet channels 5, 6.
  • the valve flaps are 11, 12 integrally molded on the valve body 1.
  • valve body 1 To accommodate the legs 13 of the two valve flaps is a corresponding one in the outer surface of the valve body 1 Recess 15 introduced. At the top of the valve body 1 is a circumferential collar 16 is arranged to limit the plug-in, which after plugging sits on the nozzle edge of the cartridge 9.
  • valve flaps 11, 12 When the components are pressed out of the two chambers 17, 18, a Pressure on the valve flaps 11, 12, which opens them (shown in dashed lines). Is the Squeezing process ended, a pressure relief occurs, so that the Valves 11, 12 close automatically due to their restoring force.
  • a pressure relief occurs, so that the Valves 11, 12 close automatically due to their restoring force.

Abstract

The double delivery cartridge (9) with a mixing unit (20) comp-rises a nozzle (14) carrying a valve body (1) with outlet channels (5, 6) which are provided with nonreturn valve flaps (11, 12).

Description

Die Erfindung betrifft eine Doppelaustragkartusche mit Mischeinrichtung insbesondere für Polyurethansysteme gemäß dem Oberbegriff des Anspruchs 1.The invention relates in particular to a double discharge cartridge with a mixing device for polyurethane systems according to the preamble of claim 1.

Derartige Doppelaustragkartuschen sind seit langem bekannt. Das Problem bei diesen Kartuschen liegt darin, dass es bei längeren Arbeitsunterbrechnungen zu Reaktionen im Bereich der Düse kommt, die zur Verstopfung der Auslassöffnungen führen und somit die Kartusche unbrauchbar machen. In der DE-OS 20 17 292 wurde daher schon vorgeschlagen, die Auslassöffnungen der Kartusche mit einem Element zu verschließen, das aus einem Sockel und zwei an dem Sockel angebrachten und in die Auslassöffnungen eindrückbaren Stopfen besteht. Das Verschlusselement ist in einer Schraubkappe angeordnet, so dass durch Aufschrauben der Schraubkappe auf die Düse die beiden Stopfen in die Auslassöffnungen eingedrückt werden. Als nachteilig hat sich gezeigt, dass das Aufschrauben der Kappe durch Verschmutzung des Gewindes der Düse und des Innengewindes der Kappe insbesondere bei mehrmaligem Verschluss erheblich behindert wird. Ferner ist der Schraubvorgang zeitaufwendig und nicht praxisgerecht.Such double discharge cartridges have been known for a long time. The problem with These cartridges reside in the fact that there are longer breaks Reactions in the area of the nozzle that leads to blockage of the outlet openings lead and thus make the cartridge unusable. In DE-OS 20 17 292 it has therefore already been proposed to use a cartridge outlet opening To close the element consisting of a base and two attached to the base and consists of plugs which can be pushed into the outlet openings. The Closing element is arranged in a screw cap, so that by screwing the screw cap on the nozzle the two plugs into the outlet openings be pushed in. It has been shown to be disadvantageous that Unscrew the cap due to contamination of the thread of the nozzle and Internal thread of the cap significantly, especially with multiple closures is hindered. Furthermore, the screwing process is time-consuming and not practical.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Doppelaustragkartusche für Zweikomponentensysteme zu schaffen, die eine Verstopfung der Auslassöffnungen und ein Rückfluss der Komponenten in die Kartusche verhindern, so dass die Kartusche auch nach Arbeitsunterbrechungen wieder einsetzbar ist.The invention is therefore based on the object of a double discharge cartridge for To create two-component systems that block the outlet openings and prevent the components from flowing back into the cartridge, so that the cartridge can be used again even after work breaks.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Die an den Auslassöffnungen angeordneten Rückschlagventile öffnen sich beim Auspressen der Komponenten und schließen sich selbsttätig nach Beendigung des Auspressvorganges. Ein Rückfluss der Komponenten in die Kartusche und eine Verstopfung der Auslassöffnungen ist somit vermieden. Da der Verschluss der Auslassöffnungen unmittelbar nach Beendigung des Auspressvorganges automatisch stattfindet, ist die erfindungsgemäße Lösung praxisgerecht und ermöglicht auch mehrere Arbeitsunterbrechungen, ohne dass die Kartusche unbrauchbar wird.This object is achieved by the features of claim 1. The check valves located at the outlet openings open at Squeeze out the components and close automatically after finishing the Squeezing process. A backflow of the components into the cartridge and a blockage the outlet openings are thus avoided. Because the closure of the outlet openings takes place automatically immediately after the end of the squeezing process, the solution according to the invention is practical and also enables several Interruptions to work without the cartridge becoming unusable.

Das Rückschlagventil wird durch eine an der Auslassöffnung angeordnete bewegliche Ventilklappe gebildet, die im entlasteten Zustand die Auslassöffnung abdeckt. Es ist zweckmäßig, die Ventilklappen an einen Ventilkörper anzuordnen der auf, die Düse der Kartusche aufsetzbar ist. Die Ventilklappen und der Ventilkörper können einstückig als Spritzgussteil aus einem hoch elastischen Kunststoff hergestellt sein. In einer weiteren Ausführungsform der Erfindung ist es allerdings auch möglich die Ventilklappen aus einem federelastischen Material als separate Teile herzustellen die in entsprechende Aufnahmetaschen am Ventilkörper eingesteckt sind.The check valve is moved by a movable one arranged at the outlet opening Valve flap formed, the outlet opening in the unloaded state covers. It is expedient to arrange the valve flaps on a valve body on, the nozzle of the cartridge can be placed. The valve flaps and the valve body can be made in one piece as an injection molded part from a highly elastic plastic his. In a further embodiment of the invention, however, it is also possible the valve flaps from a resilient material as separate parts produce the inserted in corresponding pockets on the valve body are.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is described below using an exemplary embodiment shown in the drawing explained in more detail.

Es zeigen:

Figur 1
eine Ausführungsform des Ventilkörpers in perspektivischer Ansicht und
Figur 2
die Kartusche mit auf deren Düse aufgesetztem Ventilkörper.
Show it:
Figure 1
an embodiment of the valve body in a perspective view and
Figure 2
the cartridge with the valve body attached to its nozzle.

Der in Figur 1 dargestellte Ventilkörper 1 ist einstückig als Spritzgussteil aus Kunststoff hergestellt. Die beiden im Querschnitt halbkreisförmigen und durch den Schlitz 2 getrennten Aufsteckteile 3, 4 sind mit Auslasskanälen 5, 6 versehen, die mit den entsprechenden Auslassöffnungen 7, 8 der Kartusche 9 nach dem Aufsetzen des Ventilkörpers 1 fluchten. Die beiden Aufsteckteile 3, 4 sind über den Steg 10 miteinander verbunden. Beidseitig der Auslasskanäle 5, 6 sind am Ventilkörper 1 winkelförmige Ventilklappen 11, 12 angespritzt. Wird der Ventilkörper 1 auf die Düse 14 der Kartusche 9 aufgesetzt, werden die Ventilklappen 11, 12 aufgerichtet, so dass sie die Auslasskanäle 5, 6 abdecken. Im Ausführungsbeispiel nach Figur 1 sind die Ventilklappen 11, 12 einstückig am Ventilkörper 1 angespritzt. Zur Aufnahme der Schenkel 13, der beiden Ventilklappen ist in der Außenfläche des Ventilkörpers 1 eine entsprechende Ausnehmung 15 eingebracht. Am oberen Rand des Ventilkörpers 1 ist zur Aufsteckbegrenzung ein umlaufender Bund 16 angeordnet, der nach dem Aufstecken auf dem Düsenrand der Kartusche 9 aufsitzt. The valve body 1 shown in Figure 1 is in one piece as an injection molded part made of plastic manufactured. The two are semicircular in cross section and through the slot 2 separate plug-on parts 3, 4 are provided with outlet channels 5, 6, which correspond to the corresponding Outlet openings 7, 8 of the cartridge 9 after placing the Align valve body 1. The two plug-on parts 3, 4 are connected to one another via the web 10 connected. Both sides of the outlet channels 5, 6 are angular on the valve body 1 Injection molded valve flaps 11, 12. If the valve body 1 on the nozzle 14 of the Cartridge 9 placed, the valve flaps 11, 12 are erected so that they Cover outlet channels 5, 6. In the exemplary embodiment according to FIG. 1, the valve flaps are 11, 12 integrally molded on the valve body 1. To accommodate the legs 13 of the two valve flaps is a corresponding one in the outer surface of the valve body 1 Recess 15 introduced. At the top of the valve body 1 is a circumferential collar 16 is arranged to limit the plug-in, which after plugging sits on the nozzle edge of the cartridge 9.

In Figur 2 ist die Kartusche 9 mit ihren beiden Kammern 17, 18 und dem aufgesetzten Ventilkörper 1 im Schnitt dargestellt. Die Außenkontur der Aufsteckteile 3, 4 entspricht der Innenkontur der beiden Auslassöffnungen 7, 8, so dass der Ventilkörper 1 auf die Düse 14 der Kartusche 9 aufsetzbar ist. Beim Aufsetzen wird der Schlitz 2 des Ventilkörpers 1 über den Mittelsteg 19 in der Düse 14 übergestülpt, bis der Bund 16 auf dem Düsenrand aufsitzt. Beim Einschieben des Ventilkörpers 1 richten sich die Schenkel 13 auf, so dass die Auslasskanäle 5, 6 durch die Ventilklappen 11, 12 abgedeckt werden. Zum Mischen der beiden Komponenten wird dann über die Düse 14 mit dem aufgesetzten Ventilkörper 1 eine Mischeinrichtung 20 übergestülpt.In Figure 2, the cartridge 9 with its two chambers 17, 18 and the attached Valve body 1 shown in section. The outer contour of the plug-on parts 3, 4 corresponds to the inner contour of the two outlet openings 7, 8, so that the valve body 1 can be placed on the nozzle 14 of the cartridge 9. When putting on the Slit 2 of the valve body 1 slipped over the central web 19 in the nozzle 14 until the collar 16 sits on the nozzle edge. When inserting the valve body 1 straighten the legs 13 so that the outlet channels 5, 6 through the valve flaps 11, 12 are covered. The two components are then mixed A mixing device 20 via the nozzle 14 with the valve body 1 attached put on.

Beim Auspressen der Komponenten aus den beiden Kammern 17, 18 entsteht ein Druck auf die Ventilklappen 11, 12, der diese öffnet (gestrichelt dargestellt). Ist der Auspressvorgang beendet, tritt eine Druckentlastung ein, so dass sich die Ventilklappen 11, 12 selbsttätig aufgrund ihrer Rückstellkraft schließen. Zur Erhöhung der Rückstellkraft kann es zweckmäßig sein, die Ventilklappen 11, 12 aus einem Federstahl oder einem hoch elastischen Kunststoff als separates Teil herzustellen. Für diesen Fall ist es zweckmäßig, die Aufnehmungen 15 als Aufnahmetasche auszubilden, in die die Ventilklappen 11, 12 mit ihren Schenkeln 13 eingesteckt werden.When the components are pressed out of the two chambers 17, 18, a Pressure on the valve flaps 11, 12, which opens them (shown in dashed lines). Is the Squeezing process ended, a pressure relief occurs, so that the Valves 11, 12 close automatically due to their restoring force. For Increasing the restoring force, it may be appropriate to the valve flaps 11, 12 out a spring steel or a highly elastic plastic as a separate part to manufacture. In this case, it is appropriate to the receptacles 15 as Form the receiving pocket into which the valve flaps 11, 12 with their legs 13 be plugged in.

Claims (4)

Doppelaustragkartusche mit Mischeinrichtung (20) insbesondere für Polyurethansysteme, die aus zwei axial nebeneinander angeordneten, mit den beiden Komponenten befüllten Kammern (17, 18) besteht, die getrennte, in einer Düse (14) mündende und verschließbare Auslassöffnungen (7, 8) aufweisen, dadurch gekennzeichnet, dass auf die Düse (14) der Kartusche (9) ein Ventilkörper (1) mit Auslasskanälen (5, 6) aufgesetzt ist, und dass jeder Auslasskanal mit einem Rückschlagventil versehen ist.Double discharge cartridge with mixing device (20), in particular for polyurethane systems, which consists of two axially adjacent chambers (17, 18) filled with the two components, which have separate outlet openings (7, 8) which open and close in a nozzle (14), characterized in that a valve body (1) with outlet channels (5, 6) is placed on the nozzle (14) of the cartridge (9), and that each outlet channel is provided with a check valve. Doppelaustragkartusche nach Anspruch 1, dadurch gekennzeichnet, dass das Rückschlagventil durch eine bewegliche Ventilklappe (11, 12) gebildet ist, die beim Auspressen der Komponenten öffnet und bei Entlastung selbsttätig verschließt.Double discharge cartridge according to claim 1, characterized in that the check valve is formed by a movable valve flap (11, 12) which opens when the components are pressed out and closes automatically when unloaded. Doppelaustragkartusche nach Anspruch 2, dadurch gekennzeichnet, dass die Ventilklappen (11, 12) einstückig am Ventilkörper(1) angeordnet sind.Double discharge cartridge according to claim 2, characterized in that the valve flaps (11, 12) are arranged in one piece on the valve body (1). Doppelaustragkartusche nach Anspruch 2, dadurch gekennzeichnet, dass die Ventilklappen (11, 12) aus federelastischem Material bestehende separate Teile sind, die in am Ventilkörper (1) angeordnete Aufnahmetaschen eingesteckt sind.Double discharge cartridge according to claim 2, characterized in that the valve flaps (11, 12) are separate parts made of resilient material, which are inserted into receiving pockets arranged on the valve body (1).
EP00110745A 1999-06-23 2000-05-19 Double dispensing cartridge with mixing device Withdrawn EP1063172A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19928695A DE19928695A1 (en) 1999-06-23 1999-06-23 Double discharge cartridge with mixing device, especially for polyurethane systems
DE19928695 1999-06-23

Publications (2)

Publication Number Publication Date
EP1063172A2 true EP1063172A2 (en) 2000-12-27
EP1063172A3 EP1063172A3 (en) 2001-12-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110745A Withdrawn EP1063172A3 (en) 1999-06-23 2000-05-19 Double dispensing cartridge with mixing device

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EP (1) EP1063172A3 (en)
DE (1) DE19928695A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6758411B2 (en) 2002-08-09 2004-07-06 S. C. Johnson & Son, Inc. Dual bottle for even dispensing of two flowable compositions
GB2404376A (en) * 2003-07-29 2005-02-02 Reckitt Benckiser Device for dispensing and mixing multiple liquids
EP1806184A2 (en) * 2006-01-07 2007-07-11 Tremco Illbruck Productie B.V. Cartridge for a discharge device
EP3299082A1 (en) * 2016-09-21 2018-03-28 3M Innovative Properties Company Mixer assembly and device for dispensing a dental material
WO2023222720A3 (en) * 2022-05-19 2024-02-08 Medmix Switzerland Ag Dispensing system, dispensing outlet and cartridge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2017292A1 (en) 1970-04-10 1971-10-21 Dukess, Joseph William, Mamaroneck, N.Y. (V.St.A.) Closure in connection with a compressible container

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1586673A1 (en) * 1967-08-12 1970-05-21 Artur Gronowski Closure for squeeze tubes, plastic containers or similar
DE3208472A1 (en) * 1982-03-09 1983-09-15 F. Willich GmbH & Co, 4600 Dortmund Two-component container
FR2676210B1 (en) * 1991-04-16 1996-09-20 Yoshida Industry Co CONTAINER IN THE FORM OF A TUBE AND ITS MANUFACTURING METHOD.
US5423752A (en) * 1992-07-31 1995-06-13 Habley Medical Technology Corporation Variable proportion dispenser with cartridge replacement assembly
US5478323A (en) * 1993-04-02 1995-12-26 Eli Lilly And Company Manifold for injection apparatus
US5443183A (en) * 1993-11-18 1995-08-22 Jacobsen; Kenneth H. Unitary check valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2017292A1 (en) 1970-04-10 1971-10-21 Dukess, Joseph William, Mamaroneck, N.Y. (V.St.A.) Closure in connection with a compressible container

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6758411B2 (en) 2002-08-09 2004-07-06 S. C. Johnson & Son, Inc. Dual bottle for even dispensing of two flowable compositions
GB2404376A (en) * 2003-07-29 2005-02-02 Reckitt Benckiser Device for dispensing and mixing multiple liquids
EP1806184A2 (en) * 2006-01-07 2007-07-11 Tremco Illbruck Productie B.V. Cartridge for a discharge device
EP1806184A3 (en) * 2006-01-07 2007-08-15 Tremco Illbruck Productie B.V. Cartridge for a discharge device
EP3299082A1 (en) * 2016-09-21 2018-03-28 3M Innovative Properties Company Mixer assembly and device for dispensing a dental material
WO2018057503A1 (en) * 2016-09-21 2018-03-29 3M Innovative Properties Company Mixer assembly and device for dispensing a dental material
US11185391B2 (en) 2016-09-21 2021-11-30 3M Innovative Properties Company Mixer assembly and device for dispensing a dental material
WO2023222720A3 (en) * 2022-05-19 2024-02-08 Medmix Switzerland Ag Dispensing system, dispensing outlet and cartridge

Also Published As

Publication number Publication date
EP1063172A3 (en) 2001-12-19
DE19928695A1 (en) 2000-12-28

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