EP0232733B1 - Two-component application device - Google Patents

Two-component application device Download PDF

Info

Publication number
EP0232733B1
EP0232733B1 EP87100379A EP87100379A EP0232733B1 EP 0232733 B1 EP0232733 B1 EP 0232733B1 EP 87100379 A EP87100379 A EP 87100379A EP 87100379 A EP87100379 A EP 87100379A EP 0232733 B1 EP0232733 B1 EP 0232733B1
Authority
EP
European Patent Office
Prior art keywords
mixer
cartridge
vane
tube
another
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
Application number
EP87100379A
Other languages
German (de)
French (fr)
Other versions
EP0232733A2 (en
EP0232733A3 (en
Inventor
Wilhelm A. Keller
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.)
Mixpac Systems AG
Original Assignee
Wilhelm A. Keller
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 Wilhelm A. Keller filed Critical Wilhelm A. Keller
Publication of EP0232733A2 publication Critical patent/EP0232733A2/en
Publication of EP0232733A3 publication Critical patent/EP0232733A3/en
Application granted granted Critical
Publication of EP0232733B1 publication Critical patent/EP0232733B1/en
Expired legal-status Critical Current

Links

Images

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
    • B05C17/00509—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the bayonet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • 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 invention relates to a two-component discharge device, comprising a discharge cartridge with two discharge channels, each leading from a storage space into a common mouth part, separated by a wall, and an interchangeable flow mixer connected to the mouth with alternating right and left in a mixer tube counter-clockwise coiled mixing blades which are held in a staggered position (see e.g. FR-A 2 558 209).
  • Discharge devices of this type are used in a known manner for processing various pasty or viscous masses, such as adhesives, joint sealants, lacquers, etc., which are stored separately in two components, but must be mixed for use, so that they react with one another to form a chemical reaction - usually one Solidification or curing - brought.
  • the cartridge content is pressed out of each storage space by actuating a delivery piston through the cartridge mouth, whereupon it flows through the mixer connected to it, where the two components are intimately mixed.
  • the contents of the cartridge are usually discharged in several portions with waiting times in between, during which, however, the components brought together in the mixer start to react. With longer waiting times, the mixer becomes unusable and must be replaced.
  • the object of the invention is to eliminate this difficulty and to ensure the trouble-free further discharge of the cartridge content and its flawless application even after repeated replacement of the mixer and after longer waiting times.
  • the two-component discharge device is characterized in that the first wing of the mixer tightly connects with its leading edge to the partition of the cartridge mouth and continues the two above-mentioned channels separately beyond the connection point of the mixer.
  • the invention also relates to a flow mixer of the type mentioned above, which is intended for connection to the two-component discharge cartridge mentioned.
  • this mixer is characterized in that the first wing is fixed in the mixer tube and the mixer for connection to the cartridge is designed in a certain rotational position in such a way that the said wing comes into tight contact with the duct partition and extends beyond the connection point continues.
  • the two-component or double cartridge I of the discharge device shown in FIG. I has two cylindrical storage containers 2 lying next to one another, each of which is provided with a delivery piston 3 for the discharge of the cartridge contents.
  • a discharge channel 5 leads from the storage space in each cylinder 2 into a common mouth part 6 of the cartridge, the channels 5 being separated by a wall 4 up to the mouth.
  • the cartridge I has a base plate 7 which surrounds the mouth part 6 and which has two opposing holding claws 8 for holding the mixer in the manner of a bayonet lock.
  • the flow mixer 10 (also called “static mixer”) has a mixer tube II, which on the inlet side is of a conical design and is provided with a flange 12.
  • the flange 12 When the mixer is connected to the cartridge, the flange 12 is placed on the base plate 7 between the claws 8 in a rotational position offset by 90 degrees compared to FIG. 3 and then rotated by a quarter turn, the flange engaging under the claws 8.
  • the rotational position of the connected mixer 10 relative to the cartridge is determined by two stops 13 provided on the flange 12, which come to rest on the claws 8.
  • the entirety of the mixing blades 14, 16 is preferably made in one piece as a plastic injection-molded part and is held as a mixing element in the mixer tube 11, but it is also possible to group the blades into two or more partial elements.
  • the first wing 14 of the mixer is held in the mixer tube II in such a way that its leading edge 15, when the mixer 10 is connected to the double cartridge I, is parallel to the partition 4 of the cartridge mouth and connects tightly to it.
  • the first wing 14 forms a continuation of the partition 4 into the mixer pipe II, albeit a winding one, i.e.
  • the discharge channels 5 in the mouth part 6 of the cartridge are continued separately beyond the connection point 20 of the mixer.
  • the component streams emerging through the two channels 5 when the discharge device is actuated thus do not already meet when leaving the cartridge mouth, but for the first time at the transition from the first wing 14 to the subsequent wing 16.
  • the required relative position of the first wing 14 in the mixer tube II (and thus of course the subsequent wing 16) can only be achieved by an adhesive fit, i.e. Coordination of the diameter of the wing and the tube bore can be ensured.
  • the wing 14 is somewhat extended in the area of the leading edge 15 in the direction of the tube diameter and is held in corresponding small recesses 17 in the tube wall (FIG. 3). In this way, an axial pressing of the edge 15 on the end face of the partition 4, which is recommended for the tight connection, can easily be achieved.
  • the leading edge 15 can also advantageously be designed like a knife. If, as usual, all of the wings 14, 16 form a one-piece mixing element (e.g.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)

Description

Die Erfindung bezieht sich auf eine Zweikomponenten-Austrageinrichtung, enthaltend eine Austragkartusche mit zwei aus je einem Vorratsraum in einen gemeinsamen Mündungsteil führenden, durch eine Wand getrennten Austragkanälen sowie einen an die Mündung anschliessenden, auswechselbaren Strömungsmischer mit in einem Mischerrohr längs aneinandergereihten, abwechselnd rechts-und linksdrehend gewundenen und in der Drehlage gegeneinander versetzt gehaltenen Mischflügein (siehe z.B. FR-A 2 558 209).The invention relates to a two-component discharge device, comprising a discharge cartridge with two discharge channels, each leading from a storage space into a common mouth part, separated by a wall, and an interchangeable flow mixer connected to the mouth with alternating right and left in a mixer tube counter-clockwise coiled mixing blades which are held in a staggered position (see e.g. FR-A 2 558 209).

Austrageinrichtungen dieser Art dienen in bekannter Weise zur Verarbeitung von mancherlei pastenartigen oder dickflüssigen Massen, wie Klebern, Fugendichtmassen, Lacken usw., die in zwei Komponenten getrennt aufbewahrt, zur Verwendung jedoch vermischt werden müssen, wodurch sie miteinander zur chemischen Reaktion - in der Regel eine Verfestigung bzw. Aushärtung - gebracht werden. Bei Benutzung der Austrageinrichtung wird der Kartuscheninhalt aus jedem Vorratsraum durch Betätigung eines Förderkolbens durch die Kartuschenmündung ausgepresst, worauf er den daran angeschlossenen Mischer durchströmt, wo die beiden Komponenten innig vermischt werden. Zumeist wird der Kartuscheninhalt in mehreren Teilportionen mit dazwischenliegenden Wartezeiten ausgetragen, während denen jedoch die im Mischer zusammengeführten Komponenten zu reagieren beginnen. Bei längeren Wartezeiten wird der Mischer dadurch unbrauchbar und muss ersetzt werden. Hierbei ergibt sich die Schwierigkeit, dass die Komponenten bereits am Uebergang zwischen Kartusche und Mischer und infolge Diffusion oft bis in die Kartuschenmündung hinein aushärten. Dies kann das Abtrennen des meist auf der Kartusche belassenen Mischers erschweren, vor allem aber behindern in der Masse entstehende Verhärtungen oder "Knollen" den weiteren Austrag des Kartuscheninhalts, oder es stellen sich Mängel bei der Applikation ein, wie Oberflächenfehler bei Lackierungen, mangelhafte Verklebungen usw.Discharge devices of this type are used in a known manner for processing various pasty or viscous masses, such as adhesives, joint sealants, lacquers, etc., which are stored separately in two components, but must be mixed for use, so that they react with one another to form a chemical reaction - usually one Solidification or curing - brought. When using the discharge device, the cartridge content is pressed out of each storage space by actuating a delivery piston through the cartridge mouth, whereupon it flows through the mixer connected to it, where the two components are intimately mixed. The contents of the cartridge are usually discharged in several portions with waiting times in between, during which, however, the components brought together in the mixer start to react. With longer waiting times, the mixer becomes unusable and must be replaced. The difficulty arises here that the components often harden at the transition between the cartridge and mixer and as a result of diffusion into the cartridge mouth. This can make it difficult to separate the mixer, which is usually left on the cartridge, but above all it prevents the hardening or "tubing" that occurs in the mass from further discharging the contents of the cartridge, or there are defects in the application, such as surface defects in the paintwork, poor bonding, etc .

Aufgabe der Erfindung ist es, diese Schwierigkeit zu beseitigen und auch bei wiederholter Auswechslung des Mischers und nach längeren Wartezeiten den störungsfreien weiteren Austrag des Kartuscheninhalts und dessen einwandfreie Applikation zu gewährleisten.The object of the invention is to eliminate this difficulty and to ensure the trouble-free further discharge of the cartridge content and its flawless application even after repeated replacement of the mixer and after longer waiting times.

Die erfindungsgemässe Zweikomponenten-Austrageinrichtung, mit welcher dies erreicht wird, ist dadurch gekennzeichnet, dass der erste Flügel des Mischers mit seiner Eintrittskante an die Trennwand der Kartuschenmündung dicht anschliesst und die beiden genannten Kanäle über die Anschlussstelle des Mischers hinaus getrennt weiterführt.The two-component discharge device according to the invention, with which this is achieved, is characterized in that the first wing of the mixer tightly connects with its leading edge to the partition of the cartridge mouth and continues the two above-mentioned channels separately beyond the connection point of the mixer.

Die Erfindung betrifft ausserdem einen Strömungsmischer der oben erwähnten Art, welcher zum Anschluss an die genannte Zweikomponenten-Austragkartusche bestimmt ist. Erfindungsgemäss ist dieser Mischer dadurch gekennzeichnet, dass der erste Flügel im Mischerrohr so fixiert und der Mischer zum Anschluss an die Kartusche in bestimmter Drehlage so gestaltet ist, dass der genannte Flügel mit seiner Eintrittskante zum dichten Anliegen an die Kanaltrennwand kommt und diese über die Anschlussstelle hinaus fortsetzt.The invention also relates to a flow mixer of the type mentioned above, which is intended for connection to the two-component discharge cartridge mentioned. According to the invention, this mixer is characterized in that the first wing is fixed in the mixer tube and the mixer for connection to the cartridge is designed in a certain rotational position in such a way that the said wing comes into tight contact with the duct partition and extends beyond the connection point continues.

Damit wird die gestellte Aufgabe auf verblüffend einfache Weise gelöst, indem die Herstellung weder der Kartusche noch des Strömungsmischers einen Mehraufwand gegenüber bekannten Ausführungen erfordert. Ein solcher wäre gerade beim Mischer höchst unerwünscht, weil aus den oben geschilderten Gründen für jede Kartusche mehrere Stück benötigt werden und die Mischer bei dieser Anwendung deshalb als möglichst billige Wegwerfartikel gelten müssen.The task is solved in an astonishingly simple manner in that the production of neither the cartridge nor the flow mixer requires additional effort compared to known designs. Such a would be highly undesirable, especially for the mixer, because for the reasons described above, several pieces are required for each cartridge and the mixers must therefore be considered as disposable items as cheap as possible in this application.

Die Erfindung wird nachstehend anhand von Ausführungsbeispielen in Verbindung mit der Zeichnung näher erläutert.

  • Fig. I zeigt eine Austrageinrichtung, bestehend aus Zweikomponenten-Kartusche und Strömungsmischer, in teilweise geschnittener Seitenansicht,
  • Fig. 2 ist eine Ansicht der Kartusche nach Fig. I von der Mündungsseite her gesehen, und
  • Fig. 3 zeigt den Mischer nach Fig. I von der an die Kartusche anzuschliessenden Eintrittseite her.
The invention is explained in more detail below on the basis of exemplary embodiments in conjunction with the drawing.
  • I shows a discharge device, consisting of two-component cartridge and flow mixer, in a partially sectioned side view,
  • Fig. 2 is a view of the cartridge of FIG. I seen from the mouth side, and
  • Fig. 3 shows the mixer of Fig. I from the inlet side to be connected to the cartridge.

Die Zweikomponenten- oder Doppelkartusche I der in Fig. I dargestellten Austrageinrichtung weist zwei nebeneinanderliegende, zylindrische Vorratsbehälter 2 auf, die je mit einem Förderkolben 3 für den Austrag des Kartuscheninhalts versehen sind. Aus dem Vorratsraum in jedem Zylinder 2 führt je ein Austragkanal 5 in einem gemeinsamen Mündungsteil 6 der Kartusche, wobei die Kanäle 5 bis zur Mündung durch eine Wand 4 getrennt sind. Zur lösbaren Befestigung eines an die Kartuschenmündung anschliessenden Strömungsmischers 10 weist die Kartusche I eine den Mündungsteil 6 umgebende Sockelplatte 7 auf, die zur Halterung des Mischers nach Art eines Bajonettverschlusses zwei gegenüberliegende Halteklauen 8 aufweist.The two-component or double cartridge I of the discharge device shown in FIG. I has two cylindrical storage containers 2 lying next to one another, each of which is provided with a delivery piston 3 for the discharge of the cartridge contents. A discharge channel 5 leads from the storage space in each cylinder 2 into a common mouth part 6 of the cartridge, the channels 5 being separated by a wall 4 up to the mouth. For the detachable attachment of a flow mixer 10 adjoining the cartridge mouth, the cartridge I has a base plate 7 which surrounds the mouth part 6 and which has two opposing holding claws 8 for holding the mixer in the manner of a bayonet lock.

Der Strömungsmischer 10 (auch "statischer Mischer" genannt) weist ein Mischerrohr II auf, welches eingangsseitig über den Mündungsteil 6 passend konisch ausgebildet und mit einem Flansch 12 versehen ist. Beim Anschliessen des Mischers an die Kartusche wird der Flansch 12 in gegenüber Fig. 3 um 90 Grad versetzter Drehlage zwischen den Klauen 8 auf die Sokkelplatte 7 gesetzt und dann um eine Viertelsdrehung gedreht, wobei der Flansch unter die Klauen 8 greift. Durch zwei auf dem Flansch 12 vorgesehene Anschläge 13, die an den Klauen 8 zur Anlage kommen, ist die Drehlage des angeschlossenen Mischers 10 gegenüber der Kartusche bestimmt.The flow mixer 10 (also called “static mixer”) has a mixer tube II, which on the inlet side is of a conical design and is provided with a flange 12. When the mixer is connected to the cartridge, the flange 12 is placed on the base plate 7 between the claws 8 in a rotational position offset by 90 degrees compared to FIG. 3 and then rotated by a quarter turn, the flange engaging under the claws 8. The rotational position of the connected mixer 10 relative to the cartridge is determined by two stops 13 provided on the flange 12, which come to rest on the claws 8.

Im Rohr II des Strömungsmischers befinden sich in an sich bekannter Weise längs aneinandergereiht eine Anzahl abwechselnd rechts- und linksdrehend gewundene Mischflügel 14, 16, die jeweils in der Drehlage gegeneinander um 90 Grad versetzt sind. Bei der vorliegenden Mischerbauart ist vorzugsweise die Gesamtheit der Mischflügel 14, 16 einteilig als Kunststoff-Spritzteil gefertigt und als Mischelement insgesamt im Mischerrohr 11 gehalten, jedoch ist auch eine Gruppierung der Flügel zu zwei oder mehreren Teilelementen möglich.In the tube II of the flow mixer, in a manner known per se, there are a number of mixing blades 14, 16 which are wound alternately clockwise and counterclockwise and are each offset in the rotational position by 90 degrees. In the present mixer design, the entirety of the mixing blades 14, 16 is preferably made in one piece as a plastic injection-molded part and is held as a mixing element in the mixer tube 11, but it is also possible to group the blades into two or more partial elements.

Wesentlich bei der vorliegenden Erfindung ist, dass der erste Flügel 14 des Mischers so im Mischerrohr II gehalten ist, dass seine Eintrittskante 15 beim beschriebenen Anschluss des Mischers 10 an die Doppelkartusche I zur Trennwand 4 der Kartuschenmündung parallel liegt und an diese dicht anschliesst. Dadurch bildet der erste Flügel 14 eine - wenn auch gewundene - Fortsetzung der Trennwand 4 in das Mischerrohr II hinein, d.h. die Austragkanäle 5 im Mündungsteil 6 der Kartusche werden über die Anschlussstelle 20 des Mischers hinaus getrennt weitergeführt. Die bei Betätigung der Austrageinrichtung durch die beiden Kanäle 5 austretenden Komponentenströme treffen somit nicht bereits beim Verlassen der Kartuschenmündung aufeinander, sondern erstmals beim Uebergang vom ersten Flügel 14 zum nachfolgenden Flügel 16. Damit ist gewährleistet, dass auch bei längerem Liegenlassen der Austrageinrichtung nach begonnenem Austrag im Anschlussbereich des Mischers (Stelle 20) und vor allem in der Kartuschenmündung keine Reaktion bzw. Verhärtung des Kartuscheninhalts stattfindet, d.h. die Aushärtung oder "Knollenbildung" erfolgt ausschliesslich weiter vorn (in Strömungsrichtung) im ohnehin nicht weiter verwendbaren Mischer.It is essential in the present invention that the first wing 14 of the mixer is held in the mixer tube II in such a way that its leading edge 15, when the mixer 10 is connected to the double cartridge I, is parallel to the partition 4 of the cartridge mouth and connects tightly to it. As a result, the first wing 14 forms a continuation of the partition 4 into the mixer pipe II, albeit a winding one, i.e. The discharge channels 5 in the mouth part 6 of the cartridge are continued separately beyond the connection point 20 of the mixer. The component streams emerging through the two channels 5 when the discharge device is actuated thus do not already meet when leaving the cartridge mouth, but for the first time at the transition from the first wing 14 to the subsequent wing 16. This ensures that even when the discharge device is left for a longer period after the discharge has started, Connection area of the mixer (position 20) and especially in the cartridge mouth there is no reaction or hardening of the cartridge content, ie curing or "bulb formation" takes place only further forward (in the direction of flow) in the mixer, which is in any case no longer usable.

Die erforderliche Relativlage des ersten Flügels 14 im Mischerrohr II (und damit natürlich auch der nachfolgenden Flügel 16) kann lediglich durch Haftsitz, d.h. Abstimmung der Durchmesser des Flügels und der Rohr-Bohrung sichergestellt werden. Beim dargestellten Ausführungsbeispiel ist dagegen der Flügel 14 im Bereich der Eintrittskante 15 in Richtung des Rohrdurchmessers etwas verlängert und in entsprechenden kleinen Ausnehmungen 17 in der Rohrwand gehalten (Fig. 3). Auf diese Weise kann auch eine für den dichten Anschluss empfehlenswerte axiale Anpressung der Kante 15 an die Stirnseite der Trennwand 4 leicht erreicht werden. Die Eintrittskante 15 kann mit Vorteil auch schneidenartig gestaltet werden. Wenn, wie üblich, samtliche Flügel 14, 16 ein einteiliges Mischelement (z.B. ein Kunststoff-Spritzteil) bilden, ergibt sich die weitere Möglichkeit, das Mischelement am Austrittsende 18 gegenüber dem Rohr 11 axial und in der Drehlage zu positionieren, z.B. mittels nockenartiger Führungen an der Innenwand des Rohres II (nicht dargestellt), um den richtigen Anschluss der Eintrittskante 15 sicherzustellen; durch geeignete Längenbemessung von Mischelement und Rohr lässt sich dann auch ein federnd dichtes Anliegen der Eintrittskante 15 durch leichtes axiales Zusammendrücken des Mischelementes beim Aufsetzen des Mischers 10 auf die Kartusche I erreichen.The required relative position of the first wing 14 in the mixer tube II (and thus of course the subsequent wing 16) can only be achieved by an adhesive fit, i.e. Coordination of the diameter of the wing and the tube bore can be ensured. In the illustrated embodiment, on the other hand, the wing 14 is somewhat extended in the area of the leading edge 15 in the direction of the tube diameter and is held in corresponding small recesses 17 in the tube wall (FIG. 3). In this way, an axial pressing of the edge 15 on the end face of the partition 4, which is recommended for the tight connection, can easily be achieved. The leading edge 15 can also advantageously be designed like a knife. If, as usual, all of the wings 14, 16 form a one-piece mixing element (e.g. a plastic injection-molded part), there is the further possibility of positioning the mixing element axially and in the rotational position at the outlet end 18 relative to the pipe 11, e.g. by means of cam-like guides on the inner wall of the tube II (not shown) to ensure the correct connection of the leading edge 15; By suitably dimensioning the length of the mixing element and tube, a resilient tight fit of the leading edge 15 can then be achieved by slightly axially compressing the mixing element when the mixer 10 is placed on the cartridge I.

Claims (6)

1. Two-component dispensing device including a dispensing cartridge (1) with two dispensing passages (5) separated by a wall (4) and comprising a respective storage space (2) and leading to a common orifice member (6), and a replaceable flow mixer (10) which is adjacent to the orifice and within a mixer tube (11) has mixer vanes (14, 16, 18) which are arranged longitudinally in a row against one another, are twisted alternately to the left and the right and are mounted rotationally offset from one another, characterised in that the inlet edge (15) of the first vane (14) of the mixer closely engages the separating wall (4) of the cartridge orifice (6) and said first vane (14) continues the two passages (5) separate from one another beyond the connecting point (20).
2. Two-component dispensing device as claimed in Claim 1, characterised in that the said inlet edge (15) engages the end face of the separating wall (4) with an axial pressure.
3. Flow mixer (10) which is intended to be releasably connected to the orifice (6), containing a passage separating wall (4), of a two-component dispensing cartridge (1) and which, within a mixer tube (11), has mixer vanes (14,16,18) which are arranged longitudinally in a row against one another, are twisted alternately to the left and the right and are mounted rotationally offset from one another, characterised in that the first vane (14) is so fixed in the mixer tube (11) and the mixer (10) is so shaped for connection to the cartridge (1) in a predetermined rotational position that the inlet edge (15) of the said vane (14) comes into close engagement with the passage separating wall (4) and said vane (14) continues it beyond the connecting point (20).
4. Flow mixer as claimed in Claim 3, characterised in that at least the first vane (14) is held in the mixer tube (11) by virtue of a tight fit.
5. Flow mixer as claimed in Claim 3, characterised in that all the vanes (14, 16) of the mixer (10) constitute an integral mixer element which is fixed axially and rotationally within the outlet end (18) of the mixer tube (11).
6. Flow mixer as claimed in Claim 3, characterised in that in the vicinity of its inlet edge (15) the first vane (14) is extended in the direction of the tube diameter and is mounted in corresponding recesses (17) in the tube wall.
EP87100379A 1986-02-10 1987-01-14 Two-component application device Expired EP0232733B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH534/86 1986-02-10
CH53486 1986-02-10

Publications (3)

Publication Number Publication Date
EP0232733A2 EP0232733A2 (en) 1987-08-19
EP0232733A3 EP0232733A3 (en) 1987-12-16
EP0232733B1 true EP0232733B1 (en) 1989-10-11

Family

ID=4189221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100379A Expired EP0232733B1 (en) 1986-02-10 1987-01-14 Two-component application device

Country Status (2)

Country Link
EP (1) EP0232733B1 (en)
DE (1) DE3760707D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8322909B2 (en) 2004-09-22 2012-12-04 3M Deutschland Gmbh Mixer for multi-component pastes, kit, and method of mixing paste components
US9283152B2 (en) 2007-10-04 2016-03-15 Johann Fetz Dental composition containing glass beads, process for production and use thereof
US9415361B2 (en) 2004-09-22 2016-08-16 3M Innovative Properties Company Mixer for multi-component pastes, kit, and method of mixing paste components

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771919A (en) * 1987-10-28 1988-09-20 Illinois Tool Works Inc. Dispensing device for multiple components
US5244933A (en) * 1990-10-12 1993-09-14 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Dental compositions which can be prepared and worked by the action of oscillations and method for the preparation thereof
EP0584428B1 (en) * 1992-08-24 1996-03-13 Wilhelm A. Keller Mixer for double dispensing cartridges
EP0600138B1 (en) * 1992-11-30 1997-04-16 Wilhelm A. Keller Cartridge with at least one storage container and with mixer
US5624260A (en) * 1994-02-28 1997-04-29 Minnesota Mining And Manufacturing Company Delivery system for aqueous paste dental materials
US5722829A (en) * 1995-02-27 1998-03-03 Minnesota Mining & Manufacturing Co. Cartridge dispensing system for dental material
DE19536018A1 (en) * 1995-09-27 1997-04-03 Dental Material Ges Mbh Kit for the preparation of a dental cement
US6394314B1 (en) * 1999-10-12 2002-05-28 Discus Dental Impressions, Inc. Double-barreled syringe with detachable locking mixing tip
DE10019893C2 (en) * 2000-04-20 2003-05-28 3M Espe Ag Device in the form of a dynamic mixer or a cartridge front and their use
DE10022160B4 (en) * 2000-05-09 2006-01-19 Karlheinz Reiber applicator
EP1306123A1 (en) * 2001-10-24 2003-05-02 Karlheinz Reiber Applicator
EP1510248B1 (en) 2003-08-14 2005-06-08 3M Espe Ag Mixer element for a mixer for multi-component pastes, and mixer using the same
DE10360627B4 (en) * 2003-12-19 2006-02-23 Heraeus Kulzer Gmbh Multi-component cartridge and its application
DE102004030407A1 (en) * 2004-06-23 2006-01-19 Heraeus Kulzer Gmbh Cartridge for pasty materials
KR101347011B1 (en) 2005-06-22 2014-01-02 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Hydrophilized curable silicone impression materials with improved storage behavior
US7387432B2 (en) * 2006-10-11 2008-06-17 Meditech International Ltd.-Samoa Slidable securing device for a mixer to allow communication between a mixer housing and a mixer inlet portion of the mixer
ATE525057T1 (en) 2007-12-18 2011-10-15 3M Innovative Properties Co DENTAL COMPOSITION WITH A SURFACTANT AND A COMPOUND CONTAINING F, METHOD OF PRODUCTION AND USE THEREOF
EP2072030A1 (en) 2007-12-20 2009-06-24 3M Innovative Properties Company Dental impression material containing rheological modifiers
EP2266526A1 (en) 2009-06-15 2010-12-29 3M Innovative Properties Company Polyether group containing dental composition containing an F-containing compound, process of production and use thereof
EP2459151B1 (en) 2009-07-28 2021-03-03 3M Innovative Properties Company Cationically hardenable dental composition, process of production and use thereof
EP2380925A1 (en) 2010-04-22 2011-10-26 3M Innovative Properties Company Radiation curable composition, process of production and use thereof
EP2428199A1 (en) 2010-09-09 2012-03-14 3M Innovative Properties Company Curable composition, process of production and use thereof
WO2012170413A1 (en) 2011-06-08 2012-12-13 3M Innovative Properties Company Siloxane compounds containing composition, method of production and use thereof
WO2013025494A1 (en) 2011-08-12 2013-02-21 3M Innovative Properties Company Curable composition with shortened setting time, process of production and use thereof
US9295530B2 (en) 2012-03-20 2016-03-29 3M Innovative Properties Company Device for mixing and dispensing flowable components
JP6341938B2 (en) 2013-02-25 2018-06-13 スリーエム イノベイティブ プロパティズ カンパニー Stabilized dental impression composition, parts kit, and uses thereof
EP3233017A1 (en) 2014-12-16 2017-10-25 3M Innovative Properties Company Hardenable dental impression composition comprising a polymeric filler particles and use thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103610A1 (en) * 1981-02-03 1982-08-19 Gebrüder Kömmerling Kunststoffwerke GmbH, 6780 Pirmasens HAND MIXING SYRINGE
DE3378686D1 (en) * 1982-09-07 1989-01-19 Liquid Control Int Apparatus for dispensing fluid compositions
DE3401089A1 (en) * 1984-01-13 1985-07-18 Hilti Ag, Schaan SETTING PROCEDURE FOR FASTENING ELEMENTS
US4690306A (en) * 1985-08-12 1987-09-01 Ciba-Geigy Corporation Dispensing device for storing and applying at least one liquid or pasty substance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8322909B2 (en) 2004-09-22 2012-12-04 3M Deutschland Gmbh Mixer for multi-component pastes, kit, and method of mixing paste components
US9415361B2 (en) 2004-09-22 2016-08-16 3M Innovative Properties Company Mixer for multi-component pastes, kit, and method of mixing paste components
US9283152B2 (en) 2007-10-04 2016-03-15 Johann Fetz Dental composition containing glass beads, process for production and use thereof

Also Published As

Publication number Publication date
EP0232733A2 (en) 1987-08-19
EP0232733A3 (en) 1987-12-16
DE3760707D1 (en) 1989-11-16

Similar Documents

Publication Publication Date Title
EP0232733B1 (en) Two-component application device
EP0378806B1 (en) Device for mixing and dispensing pasty products
EP0213073B1 (en) Device for mixing and applying liquid or pasty substances
US4767026A (en) Dispensing and mixing apparatus
EP1925370B1 (en) Multi-component cartridge
DE69822216T2 (en) MULTIPLE SYRINGE FOR MANUAL APPLICATION OF SUBSTANCES
EP1099470B1 (en) Device for mixing two pasty materials, especially for mixing a dental impression material with a catalyst material
EP1402940B1 (en) Mixer for multi-component pastes
EP2221114B1 (en) Transition piece for connecting a storage container with a static mixer
DE4412261A1 (en) Device for merging at least two flow media
EP0492412A1 (en) Dynamic mixer
DE102005041961B4 (en) cartridge
WO2000021653A1 (en) Device for applying a pasty two-component mixture
USRE36235E (en) Dispensing and mixing apparatus
EP2718201B1 (en) Set of multicomponent cartridges
DE102005041962B3 (en) Cartridge for storing e.g. dental casting compound, has discharge opening whose height in axial direction of cylindrical pipe is larger than axial length of interlocking plunger that is arranged in pipe
EP1306123A1 (en) Applicator
EP1746045B1 (en) Multi-chamber dispensing device
DE3420324C2 (en)
EP0022505B1 (en) Apparatus for proportioning two-component materials
DE10347938A1 (en) Head part for a multi-compartment hose bag
EP2219768B1 (en) Mixing device for mixing components of viscous media, and related mixing attachment and system
EP1072309A2 (en) Two-component cartridge
DE3420323A1 (en) Dispensing device for a plurality of flowable material components
EP0580547A1 (en) Mouthpiece for squeezing out devices for two component masses

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB LI NL

17P Request for examination filed

Effective date: 19880601

17Q First examination report despatched

Effective date: 19890228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB LI NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3760707

Country of ref document: DE

Date of ref document: 19891116

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: AMMANN PATENTANWAELTE AG BERN

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: MIXPAC SYSTEMS AG

Free format text: WILHELM A. KELLER#GRUNDSTRASSE 12#6343 ROTKREUZ (CH) -TRANSFER TO- MIXPAC SYSTEMS AG#GRUNDSTRASSE 12#6343 ROTKREUZ (CH)

NLS Nl: assignments of ep-patents

Owner name: MIXPAC SYSTEMS AG

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060112

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20060113

Year of fee payment: 20

Ref country code: NL

Payment date: 20060113

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20060120

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20060130

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20070113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20070114

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20070114