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EP1392450B1 - Expressing device for a coaxial cartridge - Google Patents

Expressing device for a coaxial cartridge Download PDF

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Publication number
EP1392450B1
EP1392450B1 EP02791828A EP02791828A EP1392450B1 EP 1392450 B1 EP1392450 B1 EP 1392450B1 EP 02791828 A EP02791828 A EP 02791828A EP 02791828 A EP02791828 A EP 02791828A EP 1392450 B1 EP1392450 B1 EP 1392450B1
Authority
EP
European Patent Office
Prior art keywords
expressing
tube
expressing device
cutting
internal
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
Application number
EP02791828A
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German (de)
French (fr)
Other versions
EP1392450A1 (en
Inventor
Nikolaus Brugner
Rolf Heusser
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.)
Sulzer Chemtech AG
Original Assignee
Sulzer Chemtech AG
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Filing date
Publication date
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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
    • B05C17/01—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
    • B05C17/0106—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 with means for longitudinally cutting container walls during relative displacement of the piston and its cooperating container
    • 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
    • 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
    • B05C17/00559—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 the different components being stored in coaxial chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/001—Cutting tubes longitudinally
    • 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
    • B05C17/00576—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 characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means

Definitions

  • the invention relates to a Ausd Wegvortechnische for a coaxial cartridge after the The preamble of claim 1 and a coaxial cartridge with such Expressing device according to the preamble of claim 14.
  • a coaxial cartridge of the type mentioned in the introduction is e.g. from FR-A-1470125.
  • Such cartridges are often used for storage and Processing of reactive adhesives, sealants and the like. Used. They point usually an outer tube and a coaxial inner tube, which has an inner and outer Limit the receiving chamber for the different components.
  • the standard commercial Dosierpistolen have namely only a ram that stand up on the inner tube and a squeezing would prevent.
  • the inner tube of a coaxial cartridge as foldable Form aluminum tube, so that the inner tube when pressing the coaxial cartridge with a commercial metering gun for one-component cartridges is folded.
  • this embodiment has the disadvantage that special requirements for the filling of Resins and to the assembly of the pistons must be put. Also with regard to the Disposal are not made of plastic and metal parts coaxial cartridges ideal.
  • the object of the invention is to provide a squeezing device and a coaxial cartridge to create the aforementioned type, which increases the filling volume with commercial dispensing guns allow expressible coaxial cartridges.
  • the inventive concept is that the inner tube of a coaxial cartridge during Express the coaxial cartridge separated by a separator and on the inner wall of the outer tube is bent. This is done by a special designed ejection device, which has a separator for separating the inner tube and a deflecting device for deflecting the at least one separated Pipe section to the inner wall of the outer tube contains.
  • This expressing device can as be executed separate component or integrated into the sealing piston of the cartridge.
  • the separator contains the Separator two cutting elements through which the inner tube in about two equal big halves is split.
  • the separator may also only one or more than have two cutting elements for separating the inner tube.
  • the cutting element expediently a plastic blade, the one-piece with the as Plastic injection molded part produced expressing device is executed.
  • the cutting element But can also be injected as a single part plastic blade, in the Expressing device is mounted.
  • Cutting blades are used in metal. Metal blades are preferred as Inserted parts integrated in the ejection device produced by injection molding.
  • the cutting elements are advantageously mounted so that they the inner tube not at right angles to the pipe wall, but cut diagonally. This allows the Cutting resistance can be reduced.
  • the cutting blades are under one Angle of 45-60 ° to a tangent to a fitting in the inner tube guide piece of Expressing device arranged.
  • the deflection device expediently consists of conical deflecting surfaces and / or inclined guide surfaces through which the separated sections of the Inner tube directed to the side slits and o.ä at the ram of Dosierpistole. be led past. Due to the deflection and the side slots is the split inner tube wall bent and pressed against the inner wall of the outer tube.
  • the inner part of the Expressing device widens from the matching in the inner tube front guide part preferably continuous until the rear end. As a result, the inner tube is under Tension set, whereby the cutting is facilitated.
  • To prepare the Cutting blades for relief can be provided at the end of the inner tube e.g. V-shaped notches be provided.
  • the squeezing device is preferably preassembled in the coaxial cartridge. This will be expediently the inner tube of the cartridge by the length of the ejection device shortened, so that the squeezing device is covered by the outer tube and the Expressing device when the cartridge starts to extrude through the outer tube to be led.
  • one or more additional deflectors provided by the one end of the at least one separated portion of the Inner tube inwards and / or the other end is pressed outwards.
  • the sections accumulate less in the region of the separation point on each other, causing the separation facilitates and the cutting resistance is reduced.
  • FIG. 1 schematically shows a part of a two-component coaxial cartridge 1 with a Outer tube 2 and a concentric inner tube 3 shown.
  • the inner tube 3 forms a inner chamber 4, in which a central inner piston 5 is slidably disposed.
  • the inner chamber 4 and the outer annular chamber 6 serve to be distributed Material components by displacement of the two pistons 5 and 7 by means of a Preßstkovs 8 a commercial metering gun or the like.
  • Exit cartridge outlet On a not shown Exit cartridge outlet.
  • In the embodiment shown in Figure 1 is between the two pistons 5 and 7 and the ram 8 a closer in the following explained ejection device arranged.
  • the Ausd Wegvorcardi shown in Figure 1 in a cross section is in the form of a Tappet with a cylindrical outer wall 9 and a conically widening Inner part 10 executed.
  • the outer diameter of the outer wall 9 is slightly smaller than the inner diameter of the outer tube 2.
  • the inner part 10 has at its piston side front end in the inner tube 3 matching central guide piece 11, which in the shown embodiment has an oval cross-section. From the leader 11 tapered deflecting surfaces 12 extend to two opposite outlet slots 13, in the region of the outer wall 9 at the press ram 8 facing the rear end of the Plunger are arranged.
  • the inner part 10 is as a hollow part with a plurality of equiangularly spaced and executed in cross-section circular segment-shaped through holes 17.
  • FIG. 2 to 4 is another embodiment of a squeezing device shown.
  • This embodiment differs from that shown in FIG 10 also includes a central tube fitting into the inner tube 3 of a coaxial cartridge 1 Guide piece 11, from the conical deflecting surfaces 12 to two opposite Exit slots 13 extend.
  • Between the outer wall 9 and the inner part 10 are also here connecting webs with an upper edge 14 and sloping on both sides Guide surfaces 15 are provided.
  • the upper edges 14 are here as cutting edges Embodiment only in that the cutting blades 16 is not on a through the Center of the guide member 11 extending common axis, but to each other parallel offset at an angle ⁇ of less than 90 °, preferably between 45 and 60 °, with respect to a tangent 19 to the guide part 11 are arranged.
  • the back end facing the press ram has the Expressing device two arcuately extending centering webs 20 with inward tapered Zenrier vom 21 provided.
  • centering webs 20 Through the between the exit slots 13 arranged centering webs 20 is a central arrangement of the press ram 8 at the Expressing device and a safe passage of the sections 18 on the ram reached.
  • FIGS. 5 to 7 show a further embodiment of a squeezing device which for a 1: 1 two-component coaxial cartridges with the same capacity of the inner and outer chamber is determined.
  • the diameter of the here with a circular cross-section executed guide piece 11 to the corresponding adapted larger inner diameter of the inner tube.
  • the cutting blades 16 on the upper edge 14 of a connecting web between the inner guide member 11 and arranged on the outer wall 9 and separated by the cutting blades 16 sections be by conical deflecting surfaces 12 and curved or inclined guide surfaces 15 directed to the lateral outlet slots 13.
  • the on the top bevelled cutting blades 16 diametrically opposite one another through arranged the center of the expressing device extending central axis 22.
  • FIGS. 8 and 9 Another embodiment of a squeezing device is shown in FIGS. 8 and 9 shown. Also there, the ejection device has a cylindrical outer wall 9 and a in the direction of the ram tapered inner part 10 on. The inner part formed and form the separator for separating the inner tube 3 in two Sections 23 and 24. In this embodiment are on the outside of the guide piece eleventh below the edges 14 two diametrically opposite and on opposite sides the edges 14 arranged first deflector 25 in the form of outwardly projecting Protrusions molded. By this deflector 25 is the one end of the separated Gates 23 and 24 of the inner tube 3 in the region of the edge 14 is pressed radially outward.
  • the first deflectors 23 opposite are on the other side of the edges 14 optional second deflectors 26 are provided, through which the inwardly bent ends opposite ends of the respective other wall portion 23 and 24 of the inner tube. 3 be pressed radially inward.
  • In the guide piece 11 are diametrically opposite recesses 27 for receiving the inwardly pressed ends of the Sections 23 and 24 provided. The ends of the split portions 23 and 24 become so pressed apart in the area of the cutting edge and compress so less each other up. In this way, the cutting process is less hindered and the Cutting resistance reduced.
  • the Ausdrückvorraumraumen described above are expediently as Injection molded parts produced.
  • the cutting blades can be integral with the injection molding as Be executed plastic blades. But you can also firmly injected into the injection molded part or interchangeable cutting blades made of metal.
  • the invention is not limited to those described above and illustrated in the drawings Embodiments limited.
  • the expressing device by appropriate Dimensioning of the outer wall and the inner part for all standard coaxial cartridges with all filling volume ratios of the inner and outer chamber be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Tubes (AREA)
  • Basic Packing Technique (AREA)
  • Connecting Device With Holders (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

An expressing device for a coaxial cartridge with an outer tube and an inner tube. In order to increase the filling volume of coaxial cartridges that can be expressed with commercially available metering guns, the expressing device is provided with a separating device for severing the inner tube and with a deflecting device for deflecting the one or more severed sections of the inner tube toward the inner wall of the outer tube when the coaxial cartridge is expressed.

Description

Die Erfindung betrifft eine Ausdrückvorrichtung für eine Coaxialkartusche nach dem Oberbegriff des Anspruchs 1 und eine Coaxialkartusche mit einer derartigen Ausdrückvorrichtung nach dem Oberbegriff des Anspruchs 14.The invention relates to a Ausdrückvorrichtung for a coaxial cartridge after the The preamble of claim 1 and a coaxial cartridge with such Expressing device according to the preamble of claim 14.

Eine Coaxialkartusche der eingangs genannten Art ist z.B. aus FR-A-1470125 bekannt. Derartige kartuschen werden vielfach zur Lagerung und Verarbeitung von reaktiven Klebstoffen, Dichtmassen und dgl. eingesetzt. Sie weisen üblicherweise ein Außenrohr und ein dazu koaxiales Innenrohr auf, die eine innere und äußere Aufnahmekammer für die unterschiedlichen Komponenten begrenzen. Um auch derartige Coaxialkartuschen mit den weit verbreiteten und kostengünstigen Standarddosierpisiolen für die Einkomponentenkartuschen ausdrücken zu können, müssen allerdings besondere Ausdrückstempel vorgesehen werden. Die handelsüblichen Standarddosierpistolen haben nämlich nur einen Preßstempel, der auf dem Innenrohr aufstehen und ein Auspressen verhindern würde. Daher muß ein speziell ausgestalteter Ausdrückstempel eingesetzt werden, der aus einem mittigen Preßstempel und einem als Rohr ausgeführten äußeren Preßstempel besteht. Der Nachteil einer derartigen Ausführung besteht darin, daß der Ausdrückstempel ca. die Hälfte des in einer Standarddosierpistole für die Aufnahme von Kartusche und Ausdrückstempel zur Verfügung stehenden Platzes einnimmt, so daß das Füllvolumen von derartigen Coaxialkartuschen gegenüber den handelsüblichen Einkomponentenkartuschen auf die Hälfte beschränkt werden muß.A coaxial cartridge of the type mentioned in the introduction is e.g. from FR-A-1470125. Such cartridges are often used for storage and Processing of reactive adhesives, sealants and the like. Used. They point usually an outer tube and a coaxial inner tube, which has an inner and outer Limit the receiving chamber for the different components. To include such Coaxial cartridges with the widely used and inexpensive standard dosage syringes for To be able to express the one-component cartridges, however, must be special Expressing stamps are provided. The standard commercial Dosierpistolen have namely only a ram that stand up on the inner tube and a squeezing would prevent. Therefore, a specially designed Ausdrückstempel must be used, from a central ram and an outer ram designed as a tube consists. The disadvantage of such an embodiment is that the ejection stamp about half of that in a standard dosing gun for receiving cartridge and Expressing stamp available space occupies, so that the filling volume of such coaxial cartridges over the commercial one-component cartridges half must be limited.

Es ist auch bereits vorgeschlagen worden, das Innenrohr einer Coaxialkartusche als faltbares Aluminiumrohr auszubilden, so daß das Innenrohr beim Auspressen der Coaxialkartusche mit einer handelsüblichen Dosierpistole für Einkomponentenkartuschen zusammengefaltet wird. Diese Ausführung hat jedoch den Nachteil, daß spezielle Anforderungen an das Abfüllen der Harze und an die Montage der Kolben gestellt werden müssen. Auch im Hinblick auf die Entsorgung sind die aus Kunststoff- und Metallteilen bestehenden Coaxialkartuschen nicht ideal. It has also been proposed, the inner tube of a coaxial cartridge as foldable Form aluminum tube, so that the inner tube when pressing the coaxial cartridge with a commercial metering gun for one-component cartridges is folded. However, this embodiment has the disadvantage that special requirements for the filling of Resins and to the assembly of the pistons must be put. Also with regard to the Disposal are not made of plastic and metal parts coaxial cartridges ideal.

Aufgabe der Erfindung ist es, eine Ausdrückvorrichtung und eine Coaxialkartusche der eingangs genannten Art zu schaffen, die eine Vergrößerung des Füllvolumens der mit handelsüblichen Dosierpistolen ausdrückbaren Coaxialkartuschen ermöglichen.The object of the invention is to provide a squeezing device and a coaxial cartridge to create the aforementioned type, which increases the filling volume with commercial dispensing guns allow expressible coaxial cartridges.

Diese Aufgabe wird durch eine Ausdrückvorrichtung mit den Merkmalen des Anspruchs 1 und durch eine Coaxialkartusche mit den Merkmalen des Anspruchs 14 gelöst. Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a squeezing device having the features of claim 1 and solved by a coaxial cartridge with the features of claim 14. expedient Embodiments and advantageous developments of the invention are in the subclaims specified.

Das erfindungsgemäße Konzept besteht darin, daß das Innenrohr einer Coaxialkartusche beim Ausdrücken der Coaxialkartusche durch eine Trenneinrichtung auseinandergetrennt und an die Innenwand des Außenrohres umgebogen wird. Dies erfolgt durch eine besonders gestaltete Ausdrückvorrichtung, die eine Trenneinrichtung zum Auftrennen des Innenrohrs und eine Umlenkeinrichtung zum Umlenken des mindestens einen aufgetrennten Rohrabschnitts zur Innenwand des Außenrohrs enthält. Diese Ausdrückvorrichtung kann als gesondertes Bauteil ausgeführt oder auch in den Dichtkolben der Kartusche integriert sein.The inventive concept is that the inner tube of a coaxial cartridge during Express the coaxial cartridge separated by a separator and on the inner wall of the outer tube is bent. This is done by a special designed ejection device, which has a separator for separating the inner tube and a deflecting device for deflecting the at least one separated Pipe section to the inner wall of the outer tube contains. This expressing device can as be executed separate component or integrated into the sealing piston of the cartridge.

In einer besonders zweckmäßigen Ausführungsform der Erfindung enthält die Trenneinrichtung zwei Schneidelemente, durch welche das Innenrohr in etwa zwei gleich große Hälften aufgeteilt wird. Die Trenneinrichtung kann aber auch nur ein oder mehr als zwei Schneidelemente zum Auftrennen des Innenrohres aufweisen. Aus Kostengründen ist das Schneidelement zweckmäßigerweise eine Kunststoffklinge, die einteilig mit der als Kunststoffspritzteil hergestellten Ausdrückvorrichtung ausgeführt ist. Das Schneidelement kann aber auch eine als Einzelteil gespritzte Kunststoffklinge sein, die in der Ausdrückvorrichtung montiert wird. Bei härteren Kartuschenmaterialien können auch Schneidklingen aus Metall eingesetzt werden. Metallklingen werden bevorzugt als Einlegeteile in der durch Spritzgußtechnik hergestellten Ausdrückvorrichtung integriert.In a particularly advantageous embodiment of the invention contains the Separator two cutting elements through which the inner tube in about two equal big halves is split. The separator may also only one or more than have two cutting elements for separating the inner tube. For cost reasons is the cutting element expediently a plastic blade, the one-piece with the as Plastic injection molded part produced expressing device is executed. The cutting element But can also be injected as a single part plastic blade, in the Expressing device is mounted. For harder cartridge materials can also Cutting blades are used in metal. Metal blades are preferred as Inserted parts integrated in the ejection device produced by injection molding.

Die Schneidelemente sind in vorteilhafter Weise derart angebracht, daß sie das Innenrohr nicht im rechten Winkel zur Rohrwandung, sondern schräg schneiden. Dadurch kann der Schneidwiderstand verringert werden. Vorzugsweise sind die Schneidklingen unter einem Winkel von 45-60° zu einer Tangente an ein in das Innenrohr passendes Führungsstück der Ausdrückvorrichtung angeordnet. The cutting elements are advantageously mounted so that they the inner tube not at right angles to the pipe wall, but cut diagonally. This allows the Cutting resistance can be reduced. Preferably, the cutting blades are under one Angle of 45-60 ° to a tangent to a fitting in the inner tube guide piece of Expressing device arranged.

Die Umlenkeinrichtung besteht zweckmäßigerweise aus kegelförmigen Umlenkflächen und/oder schrägen Führungsflächen, durch welche die aufgetrennten Abschnitte des Innenrohrs zu seitlichen Schlitzen gelenkt und an dem Preßstempel der Dosierpistole o.ä. vorbeigeleitet werden. Durch die Umlenkflächen und die seitlichen Schlitze wird die aufgetrennte Innenrohrwand verbogen und an die Innenwand des Außenrohres gedrückt. Der Preßstempel einer üblichen Dosierpistole für Einkomponentenkartuschen hat so genügend Platz, um am aufgetrennten und zur Seite gebogenen Innenrohr vorbeizukommen und die Dichtkolben über die Ausdrückvorrichtung nach vorne zu pressen. Der Innenteil der Ausdrückvorrichtung weitet sich von dem in das Innenrohr passenden vorderen Führungsteil bis zum hinteren Ende vorzugsweise kontinuierlich aus. Dadurch wird das Innenrohr unter Zugspannung gesetzt, wodurch das Schneiden erleichtert wird. Um das Ansetzen der Schneidklingen zur Erleichtern können am Ende des Innenrohrs z.B. V-förmige Einkerbungen vorgesehen sein.The deflection device expediently consists of conical deflecting surfaces and / or inclined guide surfaces through which the separated sections of the Inner tube directed to the side slits and o.ä at the ram of Dosierpistole. be led past. Due to the deflection and the side slots is the split inner tube wall bent and pressed against the inner wall of the outer tube. Of the Compression stamp of a conventional metering gun for one-component cartridges has enough Place to pass the split and bent to the side inner tube and the Press sealing piston forward over the ejection device. The inner part of the Expressing device widens from the matching in the inner tube front guide part preferably continuous until the rear end. As a result, the inner tube is under Tension set, whereby the cutting is facilitated. To prepare the Cutting blades for relief can be provided at the end of the inner tube e.g. V-shaped notches be provided.

Die Ausdrückvorrichtung wird vorzugsweise in der Coaxialkartusche vormontiert. Dazu wird zweckmäßigerweise das Innenrohr der Kartusche um die Länge der Ausdrückvorrichtung gekürzt, so daß die Ausdrückvorrichtung durch das Außenrohr abgedeckt ist und die Ausdrückvorrichtung beim beginnenden Auspressen der Kartusche durch das Außenrohr geführt wird.The squeezing device is preferably preassembled in the coaxial cartridge. This will be expediently the inner tube of the cartridge by the length of the ejection device shortened, so that the squeezing device is covered by the outer tube and the Expressing device when the cartridge starts to extrude through the outer tube to be led.

Vorzugsweise sind an dem zum Preßstempel der Dosierpistole gewandten Ende der Ausdrückvorrichtung Zentrierhilfen zur zentrischen Anordnung des Preßstempels bezüglich der Ausdrückvorrichtung vorgesehen, Dadurch wird gewährleistet, daß die aufgetrennten Innenrohrbereiche sicher an dem Preßstempel vorbeigleiten können.Preferably, at the end facing the ram of the dosing gun end of Expressing device centering for the centric arrangement of the ram with respect This ensures that the separated Inner tube areas can safely slide past the ram.

In einer weiteren zweckmäßigen Ausführung sind ein oder mehrere zusätzliche Abweiser vorgesehen, durch die das eine Ende des mindestens einen aufgetrennten Abschnitts des Innenrohrs nach innen und/oder das andere Ende nach außen gedrückt wird. Die Abschnitte stauen sich im Bereich der Trennstelle so weniger gegenseitig auf, wodurch das Auftrennen erleichtert und der Schneidwiderstand verringert wird.In a further expedient embodiment, one or more additional deflectors provided by the one end of the at least one separated portion of the Inner tube inwards and / or the other end is pressed outwards. The sections accumulate less in the region of the separation point on each other, causing the separation facilitates and the cutting resistance is reduced.

Weitere Besonderheiten und Vorzüge der Erfindung ergeben sich aus der folgenden Beschreibung bevorzugter Ausführungsbeispiele anhand der Zeichnung. Es zeigt:

Figur 1
eine Teilansicht einer Zweikomponenten-Coaxialkartusche mit Kolben, Preßstempel und einer erfindungsgemäßen Ausdrückvorrichtung im Schnitt;
Figur 2
eine Draufsicht auf den zum Kolben gewandten Teil einer zweiten Ausführungsform einer erfindungsgemäßen Ausdrückvorrichtung;
Figur 3
eine perspektivische Ansicht des zum Kolben gewandten Teils der in Figur 2 dargestellten Ausdrückvorrichtung;
Figur 4
eine perspektivische Ansicht des zum Preßstempel gewandten Teils der in Figur 2 dargestellten Ausdrückvorrichtung;
Figur 5
eine Draufsicht auf den zum Kolben gewandten Teil einer dritten Ausführungsform einer erfindungsgemäßen Ausdrückvorrichtung;
Figur 6
eine Schnittansicht entlang der Linie A-A von Figur 5 und
Figur 7
eine perspektivische Ansicht des zum Kolben gewandten Teils eines zweiten Ausführungsbeispiels einer Vorrichtung zum Auftrennen des Innenrohrs einer 1:1-Coaxialkartusche und
Figur 8
eine weitere Ausführungsform einer Ausdrückvorrichtung in einer Schnittansicht entlang der Linie A-A von Figur 9 und
Figur 9
eine Draufsicht auf den zum Kolben gewandten Teil der in Figur 8 gezeigten Ausführungsform einer Ausdrückvorrichtung.
Other features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings. It shows:
FIG. 1
a partial view of a two-component coaxial cartridge with piston, ram and a Ausdrückvorrichtung invention in section;
FIG. 2
a plan view of the piston facing part of a second embodiment of a squeezing device according to the invention;
FIG. 3
a perspective view of the piston facing part of the Ausdrückvorrichtung shown in Figure 2;
FIG. 4
a perspective view of the press-stamped part of the ejection device shown in Figure 2;
FIG. 5
a plan view of the piston facing part of a third embodiment of a squeezing device according to the invention;
FIG. 6
a sectional view taken along the line AA of Figure 5 and
FIG. 7
a perspective view of the piston facing part of a second embodiment of an apparatus for separating the inner tube of a 1: 1 coaxial cartridge and
FIG. 8
a further embodiment of a squeezing device in a sectional view taken along the line AA of Figure 9 and
FIG. 9
a plan view of the piston facing part of the embodiment of a squeezing device shown in Figure 8.

In Figur 1 ist schematisch ein Teil einer Zweikomponenten-Coaxialkartusche 1 mit einem Außenrohr 2 und einem dazu konzentrischen Innenrohr 3 gezeigt. Das Innenrohr 3 bildet eine innere Kammer 4, in der ein zentraler innerer Kolben 5 verschiebbar angeordnet ist. Zwischen der Außenwand des Innenrohrs 3 und der Innenwand des Außenrohrs 2 wird eine äußere Ringkammer 6 begrenzt, in der ein ringförmiger äußerer Kolben 7 verschiebbar angeordnet ist. Die innere Kammer 4 und die äußere Ringkammer 6 dienen zur Aufnahme zu verteilender Materialkomponenten, die durch Verschiebung der beiden Kolben 5 und 7 mittels eines Preßstempels 8 einer handelsüblichen Dosierpistole oder dgl. an einer nicht dargestellten Kartuschenaustrittsöffnung austreten. Bei der in Figur 1 dargestellten Ausführung ist zwischen den beiden Kolben 5 bzw. 7 und dem Preßstempel 8 eine im folgenden näher erläuterte Ausdrückvorrichtung angeordnet.FIG. 1 schematically shows a part of a two-component coaxial cartridge 1 with a Outer tube 2 and a concentric inner tube 3 shown. The inner tube 3 forms a inner chamber 4, in which a central inner piston 5 is slidably disposed. Between the outer wall of the inner tube 3 and the inner wall of the outer tube 2 becomes an outer one Limited annular chamber 6, in which an annular outer piston 7 slidably disposed is. The inner chamber 4 and the outer annular chamber 6 serve to be distributed Material components by displacement of the two pistons 5 and 7 by means of a Preßstempels 8 a commercial metering gun or the like. On a not shown Exit cartridge outlet. In the embodiment shown in Figure 1 is between the two pistons 5 and 7 and the ram 8 a closer in the following explained ejection device arranged.

Die in Figur 1 in einem Querschnitt dargestellte Ausdrückvorrichtung ist in Form eines Stößels mit einer zylindrischen Außenwand 9 und einem sich kegelförmig erweiternden Innenteil 10 ausgeführt. Der Außendurchmesser der Außenwand 9 ist geringfügig kleiner als der Innendurchmesser des Außenrohrs 2. Der Innenteil 10 hat an seinem kolbenseitigen vorderen Ende ein in das Innenrohr 3 passendes zentrales Führungsstück 11, das bei der gezeigten Ausführung einen ovalen Querschnitt aufweist. Von dem Führungsstück 11 verlaufen kegelförmige Umlenkflächen 12 zu zwei gegenüberliegenden Austrittsschlitzen 13, die im Bereich der Außenwand 9 an dem zum Preßstempel 8 weisenden hinteren Ende des Stößels angeordnet sind. Zwischen der Außenwand 9 und dem Innenteil 10 sind zwei gegenüberliegende Verbindungsstege mit jeweils einer gegenüber dem Führungsstück 11 zurückversetzten oberen Kante 14 und zu beiden Seiten schräg abfallenden Führungsflächen 15 angeordnet. Auf den oberen Kanten 14 der beiden Verbindungsstege ist jeweils eine an das Führungsstück 11 anschließende Schneidklinge 16 zum Auftrennen des Innenrohrs 3 angeordnet. Das Innenteil 10 ist als Hohlteil mit mehreren gleichwinklig beabstandeten und im Querschnitt kreissegmentförmigen Durchgangsbohrungen 17 ausgeführt.The Ausdrückvorrichtung shown in Figure 1 in a cross section is in the form of a Tappet with a cylindrical outer wall 9 and a conically widening Inner part 10 executed. The outer diameter of the outer wall 9 is slightly smaller than the inner diameter of the outer tube 2. The inner part 10 has at its piston side front end in the inner tube 3 matching central guide piece 11, which in the shown embodiment has an oval cross-section. From the leader 11 tapered deflecting surfaces 12 extend to two opposite outlet slots 13, in the region of the outer wall 9 at the press ram 8 facing the rear end of the Plunger are arranged. Between the outer wall 9 and the inner part 10 are two opposite connecting webs, each with a relative to the guide piece eleventh recessed upper edge 14 and obliquely sloping guide surfaces on both sides 15 arranged. On the upper edges 14 of the two connecting webs in each case one to the Guide piece 11 subsequent cutting blade 16 for separating the inner tube. 3 arranged. The inner part 10 is as a hollow part with a plurality of equiangularly spaced and executed in cross-section circular segment-shaped through holes 17.

Wie aus Figur 1 hervorgeht, wird das Innenrohr 3 beim Eindrücken der Ausdrückvorrichtung mittels des Stempel 8 durch die beiden Schneidklingen 16 aufgetrennt. Die aufgetrennten Abschnitte 18 des Innenrohrs 3 werden über die Führungsflächen 15 und die kegelförmigen Umlenkflächen 12 des Innenteils 10 zu den beiden Austrittsschlitzen 13 gelenkt und durch diese hindurch an dem Preßstempel 8 vorbeigeführt.As is apparent from Figure 1, the inner tube 3 when pressing the squeezing device separated by the punch 8 through the two cutting blades 16. The split Sections 18 of the inner tube 3 are over the guide surfaces 15 and the conical Deflection surfaces 12 of the inner part 10 directed to the two outlet slots 13 and through this passed past the ram 8.

In den Figuren 2 bis 4 ist ein weiteres Ausführungsbeispiel einer Ausdrückvorrichtung gezeigt. Diese Ausführung unterscheidet sich von dem in Figur 1 dargestellten 10 umfaßt ebenfalls ein in das Innenrohr 3 einer Coaxialkartusche 1 passendes zentrales Führungsstück 11, von dem kegelförmige Umlenkflächen 12 zu zwei gegenüberliegenden Austrittsschlitzen 13 verlaufen. Zwischen der Außenwand 9 und dem Innenteil 10 sind auch hier Verbindungsstege mit einer oberen Kante 14 und zu beiden Seiten schräg abfallenden Führungsflächen 15 vorgesehen. Die oberen Kanten 14 sind hier als Schneidkanten Ausführungsbeispiel lediglich dadurch, daß die Schneidklingen 16 nicht auf einer durch den Mittelpunkt des Führungsteils 11 verlaufenden gemeinsamen Achse, sondern zueinander parallel versetzt unter einem Winkel α von weniger als 90°, vorzugsweise zwischen 45 und 60°, gegenüber einer Tangente 19 zum Führungsteil 11 angeordnet sind. Die einander entsprechenden Teile sind daher mit denselben Bezugszeichen versehen. Auch bei dieser Ausführung verlaufen von dem in das Innenrohr passenden ovalen Führungsteil 11 kegelförmige Umlenkflächen 12 zu den Austrittsschlitzen 13, die einander gegenüberliegend am Rand der Außenwand 9 angeordnet sind. Die Schneidklingen 16 sind auf den oberen Kanten 14 zweier versetzter Verbindungsstege mit schräg oder gebogen verlaufenden Führungsflächen 15 angeordnet.In Figures 2 to 4 is another embodiment of a squeezing device shown. This embodiment differs from that shown in FIG 10 also includes a central tube fitting into the inner tube 3 of a coaxial cartridge 1 Guide piece 11, from the conical deflecting surfaces 12 to two opposite Exit slots 13 extend. Between the outer wall 9 and the inner part 10 are also here connecting webs with an upper edge 14 and sloping on both sides Guide surfaces 15 are provided. The upper edges 14 are here as cutting edges Embodiment only in that the cutting blades 16 is not on a through the Center of the guide member 11 extending common axis, but to each other parallel offset at an angle α of less than 90 °, preferably between 45 and 60 °, with respect to a tangent 19 to the guide part 11 are arranged. The each other corresponding parts are therefore provided with the same reference numerals. Also with this Execution run from the matching in the inner tube oval guide member 11th conical deflecting surfaces 12 to the outlet slots 13, which are opposite to each other are arranged at the edge of the outer wall 9. The cutting blades 16 are on the upper Edges 14 of two offset connecting webs with oblique or curved running Guide surfaces 15 arranged.

Wie aus Figur 4 hervorgeht, sind an dem zum Preßstempel gewandten hinteren Ende der Ausdrückvorrichtung zwei kreisbogenförmig verlaufende Zentrierstege 20 mit nach innen konisch zulaufenden Zenrierflächen 21 vorgesehen. Durch die zwischen den Austrittsschlitzen 13 angeordneten Zentrierstege 20 wird eine mittige Anordnung des Preßstempels 8 an der Ausdrückeinrichtung und eine sichere Vorbeiführung der Abschnitte 18 am Preßstempel erreicht.As can be seen from FIG. 4, the back end facing the press ram has the Expressing device two arcuately extending centering webs 20 with inward tapered Zenrierflächen 21 provided. Through the between the exit slots 13 arranged centering webs 20 is a central arrangement of the press ram 8 at the Expressing device and a safe passage of the sections 18 on the ram reached.

Die Figuren 5 bis 7 zeigen ein weiteres Ausführungsbeispiel einer Ausdrückvorrichtung, die für eine 1:1 Zweikomponenten-Coaxialkartuschen mit gleichem Aufnahmevolumen der inneren und äußeren Kammer bestimmt ist. Bei dieser Ausführung ist der Durchmesser des hier mit einem Kreisquerschnitt ausgeführten Führungsstücks 11 an den entsprechend größeren Innendurchmesser des Innenrohrs angepaßt. Auch hier sind die Schneidklingen 16 auf der oberen Kante 14 eines Verbindungsstegs zwischen dem inneren Führungsteil 11 und der Außenwand 9 angeordnet und die durch die Schneidklingen 16 aufgetrennten Abschnitte werden durch kegelförmige Umlenkflächen 12 und gebogene oder schräge Führungsflächen 15 zu den seitlichen Austrittsschlitzen 13 gelenkt. Bei der gezeigten Ausführung sind die auf der Oberseite abgeschrägten Schneidklingen 16 diametral gegenüberliegend auf einer durch den Mittelpunkt der Ausdrückvorrichtung verlaufenden Mittelachse 22 angeordnet.FIGS. 5 to 7 show a further embodiment of a squeezing device which for a 1: 1 two-component coaxial cartridges with the same capacity of the inner and outer chamber is determined. In this embodiment, the diameter of the here with a circular cross-section executed guide piece 11 to the corresponding adapted larger inner diameter of the inner tube. Again, the cutting blades 16 on the upper edge 14 of a connecting web between the inner guide member 11 and arranged on the outer wall 9 and separated by the cutting blades 16 sections be by conical deflecting surfaces 12 and curved or inclined guide surfaces 15 directed to the lateral outlet slots 13. In the illustrated embodiment, the on the top bevelled cutting blades 16 diametrically opposite one another through arranged the center of the expressing device extending central axis 22.

Ein weiteres Ausführungsbeispiel einer Ausdrückvorrichtung ist in den Figuren 8 und 9 gezeigt. Auch dort weist die Ausdrückvorrichtung eine zylindrische Außenwand 9 und einen sich in Richtung des Preßstempels kegelförmig erweiternden Innenteil 10 auf. Der Innenteil ausgebildet und bilden die Trenneinrichtung zum Auftrennen des Innenrohrs 3 in zwei Abschnitte 23 und 24. Bei dieser Ausführung sind an der Außenseite des Führungsstücks 11 unterhalb der Kanten 14 zwei diametral gegenüberliegende und auf entgegengesetzten Seiten der Kanten 14 angeordnete erste Abweiser 25 in Form von nach außen vorstehenden Vorsprüngen angeformt. Durch diese Abweiser 25 wird das eine Ende der aufgetrennten Anschnitte 23 und 24 des Innenrohrs 3 im Bereich der Kante 14 radial nach außen gedrückt. Den ersten Abweisern 23 gegenüberliegend sind auf der anderen Seite der Kanten 14 optional zweite Abweiser 26 vorgesehen, durch welche die den nach innen gebogenen Enden gegenüberliegenden Enden des jeweils anderen Wandabschnitts 23 bzw. 24 des Innenrohrs 3 radial nach innen gedrückt werden. In dem Führungsstück 11 sind diametral gegenüberliegende Einbuchtungen 27 zur Aufnahme der nach innen gedrückten Enden der Abschnitte 23 und 24 vorgesehen. Die Enden der aufgetrennten Abschnitte 23 und 24 werden so im Bereich der Schneidkante auseinandergedrückt und stauchen sich so weniger gegenseitig auf. Auf diese Weise wird der Schneidvorgang weniger behindert und der Schneidwiderstand reduziert.Another embodiment of a squeezing device is shown in FIGS. 8 and 9 shown. Also there, the ejection device has a cylindrical outer wall 9 and a in the direction of the ram tapered inner part 10 on. The inner part formed and form the separator for separating the inner tube 3 in two Sections 23 and 24. In this embodiment are on the outside of the guide piece eleventh below the edges 14 two diametrically opposite and on opposite sides the edges 14 arranged first deflector 25 in the form of outwardly projecting Protrusions molded. By this deflector 25 is the one end of the separated Gates 23 and 24 of the inner tube 3 in the region of the edge 14 is pressed radially outward. The first deflectors 23 opposite are on the other side of the edges 14 optional second deflectors 26 are provided, through which the inwardly bent ends opposite ends of the respective other wall portion 23 and 24 of the inner tube. 3 be pressed radially inward. In the guide piece 11 are diametrically opposite recesses 27 for receiving the inwardly pressed ends of the Sections 23 and 24 provided. The ends of the split portions 23 and 24 become so pressed apart in the area of the cutting edge and compress so less each other up. In this way, the cutting process is less hindered and the Cutting resistance reduced.

Die vorstehend beschriebenen Ausdrückvorrichtungen sind zweckmäßigerweise als Spritzgußteile hergestellt. Die Schneidklingen können einstückig mit dem Spritzgußteil als Kunststoffklingen ausgeführt sein. Sie können aber auch fest in das Spritzgußteil eingespritzte oder auswechselbare Schneidklingen aus Metall sein.The Ausdrückvorrichtungen described above are expediently as Injection molded parts produced. The cutting blades can be integral with the injection molding as Be executed plastic blades. But you can also firmly injected into the injection molded part or interchangeable cutting blades made of metal.

Die Erfindung ist nicht auf die vorstehend beschriebenen und in der Zeichnung dargestellten Ausführungsbeispiele beschränkt. So kann die Ausdrückvorrichtung durch entsprechende Dimensionierung der Außenwand und des Innenteils für sämtliche Standard-Coaxialkartuschen mit allen Füllvolumenverhältnissen der Innen- und Außenkammer eingesetzt werden.The invention is not limited to those described above and illustrated in the drawings Embodiments limited. Thus, the expressing device by appropriate Dimensioning of the outer wall and the inner part for all standard coaxial cartridges with all filling volume ratios of the inner and outer chamber be used.

Claims (19)

  1. Expressing device for a coaxial cartridge with an external tube (2) and an internal tube (3), with a cutting device (14, 16) for cutting an internal tube (3), characterised by a deflecting device (12, 13, 15) for deflecting the at least one cut portion of the internal tube (3) to the internal wall of the external tube (2) when the coaxial cartridge is expressed.
  2. Expressing device according to claim 1, characterised in that the cutting device comprises at least one cutting element (16) for cutting through the wall of the internal tube (3).
  3. Expressing device according to claim 2, characterised in that the at least one cutting element (16) is an integral or insertable plastic or metal blade.
  4. Expressing device according to claim 2 or 3, characterised in that the at least one cutting element (16) is arranged perpendicularly or obliquely to the tube wall of the internal tube (3).
  5. Expressing device according to one of claims 2 to 4, characterised in that the at least one cutting element (16) is arranged next to a guide piece (11) fitting into the internal tube (3) and belonging to an internal part (10) of the expressing device widening in the direction of at least one side outlet slot (13).
  6. Expressing device according to claim 5, characterised in that the internal part (10) widens continuously or in steps in the direction of the at least one outlet slot (13).
  7. Expressing device according to one of claims 2 to 6, characterised in that the at least one cutting element (16) is arranged on a connecting ledge (14, 15) between a cylindrical external wall (9) and the internal part (10).
  8. Expressing device according to one of claims 1 to 7, characterised in that the deflecting device (12, 13, 15) exhibits conical deflecting faces (12) and/or oblique guide faces (15) for deflecting the at least one cut portion of the internal tube (3) to one or more side slots (13).
  9. Expressing device according to one of claims 1 to 8, characterised in that it contains centering elements (20) at its rear end facing a pressing plunger (8).
  10. Expressing device according to one of claims 1 to 9, characterised in that in the area of the cutting device (14, 16) there are one or more additional deflectors (25, 26) through which one end of the at least one cut portion (23, 24) of the internal tube (3) is pressed inwards and/or the other end is pressed outwards.
  11. Expressing device according to claim 10, characterised in that the additional deflectors (25, 26) consist of a first deflector (25) on one side of the cutting device (14, 16) and a second deflector (26) on the other side of the cutting device (14, 16).
  12. Expressing device according to one of claims 5 to 11, characterised in that the guide piece (11) exhibits at least one bay (27) for receiving the inwardly pressed end of the at least one cut portion (23, 24) of the internal tube (3).
  13. Expressing device according to one of claims 1 to 12, characterised in that it is made in the form of a one-piece injection moulding.
  14. Coaxial cartridge with an external tube (2), an internal tube (3) and an expressing device, characterised in that the expressing device is embodied according to one of claims 1 to 13.
  15. Coaxial cartridge according to claim 14, characterised in that the internal tube (3) contains at least one notch for attaching the cutting device (14, 16).
  16. Coaxial cartridge according to claim 14 or 15, characterised in that the expressing device is embodied as a separate part.
  17. Coaxial cartridge according to claim 14 or 15, characterised in that the expressing device is incorporated in at least one sealing piston (5, 7) for sealing the external tube (2) and/or the internal tube (3).
  18. Coaxial cartridge according to one of claims 14 to 17, characterised in that the expressing device is preassembled in the coaxial cartridge (1).
  19. Coaxial cartridge according to one of claims 14 to 18, characterised in that the internal tube (3) is shortened in relation to the external tube (2) by the length of the expressing device.
EP02791828A 2002-02-20 2002-12-14 Expressing device for a coaxial cartridge Expired - Lifetime EP1392450B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20202620U 2002-02-20
DE20202620U DE20202620U1 (en) 2002-02-20 2002-02-20 Ejection device for a coaxial cartridge
PCT/EP2002/014278 WO2003070385A1 (en) 2002-02-20 2002-12-14 Expressing device for a coaxial cartridge

Publications (2)

Publication Number Publication Date
EP1392450A1 EP1392450A1 (en) 2004-03-03
EP1392450B1 true EP1392450B1 (en) 2005-07-27

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US (1) US6938797B2 (en)
EP (1) EP1392450B1 (en)
JP (1) JP4563685B2 (en)
CN (1) CN1245260C (en)
AT (1) ATE300361T1 (en)
AU (1) AU2002358141A1 (en)
CA (1) CA2442768C (en)
DE (2) DE20202620U1 (en)
ES (1) ES2244827T3 (en)
TW (1) TWI249436B (en)
WO (1) WO2003070385A1 (en)

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JP2005517599A (en) 2005-06-16
CA2442768A1 (en) 2003-08-28
DE20202620U1 (en) 2003-04-30
CN1503703A (en) 2004-06-09
ES2244827T3 (en) 2005-12-16
AU2002358141A1 (en) 2003-09-09
EP1392450A1 (en) 2004-03-03
TWI249436B (en) 2006-02-21
TW200303240A (en) 2003-09-01
CN1245260C (en) 2006-03-15
US20040129122A1 (en) 2004-07-08
WO2003070385A1 (en) 2003-08-28
CA2442768C (en) 2009-04-14
US6938797B2 (en) 2005-09-06
JP4563685B2 (en) 2010-10-13
DE50203762D1 (en) 2005-09-01
ATE300361T1 (en) 2005-08-15

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