EP0291753A2 - Dispensing device for double compartment cartridges - Google Patents

Dispensing device for double compartment cartridges Download PDF

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Publication number
EP0291753A2
EP0291753A2 EP88107002A EP88107002A EP0291753A2 EP 0291753 A2 EP0291753 A2 EP 0291753A2 EP 88107002 A EP88107002 A EP 88107002A EP 88107002 A EP88107002 A EP 88107002A EP 0291753 A2 EP0291753 A2 EP 0291753A2
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EP
European Patent Office
Prior art keywords
cartridge
discharge
plungers
insertion opening
link guide
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.)
Granted
Application number
EP88107002A
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German (de)
French (fr)
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EP0291753B1 (en
EP0291753A3 (en
Inventor
Wilhelm A. Keller
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KELLER, WILHELM A.
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Individual
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    • 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
    • B05C17/01—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 discharge device for operating double cartridges provided with a holding flange, which has a front link guide with a one-sided insertion opening for receiving the holding flange and two discharge plungers which can be moved out of the front of the device in parallel axis.
  • the anchoring proves to be insufficient if the two cartridge cylinders are longitudinally separated from one another, ie are practically only connected to one another via the holding flange and in the mouth area.
  • a certain remedy - if at all - is only possible with the known device design by thickening or stiffening (ribbing) of the cartridge holding flange.
  • thickening or stiffening (ribbing) of the cartridge holding flange increases the material and manufacturing costs for the cartridges, which is highly undesirable for these disposable parts intended for single use.
  • the present invention has for its object to achieve a perfect, highly resilient anchoring between discharge device and exchangeable cartridges by suitable device training and without additional effort in the cartridges.
  • the discharge device 1 is used for the interchangeable reception and operation of double cartridges 10, one of which is shown ready for insertion next to the device in FIG. 1.
  • double cartridges 10 which are known per se, have a generally rectangular holding flange 11, from which two (shown broken off) parallel hollow cylinders 12 originate.
  • the two cylinders of the cartridge 10 are used for the separate storage and distribution of two generally pasty or viscous masses, components of a so-called two-component system, which are mixed together when they are discharged from the cartridge cylinders for use.
  • the discharge device 1 has a device body 2, with which a handle 6 is firmly connected.
  • An actuating handle 7 is articulated on the device body in the area of the handle 6, which acts on the two plungers 5 via a mechanism (not shown here) inside the device body 2.
  • the plungers 5 are in their initial position, i.e. recessed in the device body 2, shown.
  • the handle 7 When the handle 7 is actuated, they are moved out of the front of the device 3 in parallel and pressed against the delivery pistons of an inserted cartridge 10, whereby these delivery pistons are advanced and the cartridge contents are discharged.
  • a link guide 4 is provided on the device front 3.
  • the link guide has an insertion opening 9 which, in the device embodiment shown with plungers 5 arranged next to one another, is located on a (left or right) side edge of the device front 3.
  • the insertion opening 9 thus extends transversely to a straight line 8 which connects the centers of the two plungers 5.
  • the link guide 4 is continuous on both sides of the straight line 8 mentioned, and at its end opposite the insertion opening 9 it forms a stop for positioning the holding flange 11.
  • the front recess 4a is preferably shaped as a semicircle corresponding to the circumference of a cartridge cylinder 12, as shown, the guide 4 itself ending tangentially to the semicircle.
  • the retaining flange 11 of an inserted double cartridge 10 is thus gripped continuously by the link guide 4 on one narrow side and on both long sides; only the second narrow side is exposed over a distance corresponding to the diameter of a single cartridge cylinder. This results in a very stable connection between the device and the cartridge, which can also withstand high loads withstand the advance of the two discharge plungers without any significant deformation of the flange or the cartridge.
  • the link guide comprises only one long side, but both narrow sides of the holding flange
  • the flange must necessarily protrude on both narrow sides by sections 13 beyond the cylinder outer diameter, as is indicated by dash-dotted lines in FIG. 1.
  • these sections 13 can be omitted, i.e. the holding flange 11 can be tangential and flush with the cartridge cylinders 12 on its two narrow sides.
  • the present design of the slide guide allows material savings to be made on the disposable cartridge 10 in large quantities and as cheaply as possible.
  • the present slide guide can of course also be designed to accommodate conventional double cartridges with lateral sections 13 protruding from the holding flange.
  • the present design of the discharge device also enables individual, i.e. separate cartridge cylinders, each provided with a holding flange, in pairs or individually (for one-component systems), which would be completely ruled out for devices according to the prior art.
  • the discharge device 20 according to FIG. 3 is provided in a manner known per se for compressed air drive. Accordingly, the device body is essentially formed by a cylinder / piston unit 22. A compressed air connection 21 is located at the bottom on the handle 26 connected to the device front 23, in which a compressed air control valve (not visible) to be actuated by the handle 27 is installed.
  • the two discharge plungers 25, which can be moved out of the device front 23 in parallel axis, are not ( ) piston connected inside the device body 22 and here arranged vertically one above the other in the device.
  • the insertion opening 29 of the link guide 24 is in this plunger arrangement on the upper edge of the device front 23; it in turn extends transversely to the straight line 28, which connects the centers of both plungers 25.
  • the link guide 24 is continuous on both sides of the straight line 28 and in the lower region is preferably designed in accordance with the first exemplary embodiment in that the front recess 24a forms a semicircle which is adapted to the circumference of a cartridge cylinder and the guide 24 extends tangentially to this semicircle at the lower end.
  • Double cartridges 10 are inserted into the discharge device 20 from above, naturally with the longitudinal sides of the holding flange 11 standing vertically, i.e. in a position rotated by 90 ° with respect to FIG. 1.
  • design options for the link guide and the cartridge holding flange and options for inserting independent individual cartridges the same applies as described in connection with the exemplary embodiment according to FIGS. 1 and 2.
  • a discharge device 30 can also be designed according to the same principle for the reception and operation of double cartridges 10 ', the two cylinders 12' of unequal diameter and the retaining flange 11 'accordingly corresponding to that shown Outlines.
  • the device - here with the discharge plungers 35 one above the other and the insertion opening 39 arranged on the upper edge of the device front 33 - then receives a link guide 34 which is symmetrical to the straight line 38 connecting the two plunger centers, but with the sections on both sides corresponding to the shape of the flange 11 'against one another are inclined.
  • the front recess 34a is expediently shaped so that it touches both cylinders 12 'laterally on the cartridge used and is guided around the smaller cylinder at the bottom.
  • there is a perfectly non-positive anchoring of the retaining flange which would not be possible according to the prior art.
  • such a holding flange which is integrally connected to the cartridge cylinders, is not necessarily required on the double cartridges;
  • a loose (e.g. reusable, essentially rectangular) flange plate with through openings for the cylinders would also be conceivable, which would then only be provided with narrow ring flanges for contact with the flange plate.

Abstract

Bei Austraggeräten (1) zur Bedienung von Doppelkartuschen (10) mit Halteflansch (11) ist eine frontseitige Kulissenführung (4) mit einseitiger Einschuböffnung (9) für den Halteflansch vorgesehen. Dabei besteht das Problem, eine wirksame Verankerung zwischen Gerät und Kartusche zu gewährleisten, um Verformungen des Halteflansches (11) bzw. der ganzen Kartusche (1) zu verhindern, wenn zum Austragen des Kartuscheninhalts die zwei Austragstössel (5) des Gerätes aus der Gerätefront (3) heraus bewegt werden und in den Kartuschenzylindern (12) eingesetzte Förderkolben vorschieben. Hierfür ist die Kulissenführung (4) beidseits einer Geraden (8), welche die Zentren beider Stössel (5) verbindet, durchgehend ausgeführt und die Einschuböffnung (9) erstreckt sich quer zu der genannten Geraden (8). Bei nebeneinander im Gerät (1) angeordneten Stösseln (5) befindet sich die Einschuböffnung (9) am einen Seitenrand, bei übereinander angeordneten Stösseln dagegen mit Vorteil am oberen Rand der Gerätefront. Dank der neuartigen Kulissenführung (4) ist es im Gegensatz zum Stand der Technik möglich, den Kartuschenflansch (11) um seitliche Abschnitte (13) zu verkleinern und selbst Einzelzylinder (12) mit separaten Flanschen sicher zu verankern.In the case of discharge devices (1) for operating double cartridges (10) with a holding flange (11), a front-side link guide (4) with a one-sided insertion opening (9) is provided for the holding flange. There is the problem of ensuring effective anchoring between the device and the cartridge in order to prevent deformation of the holding flange (11) or the entire cartridge (1) if the two discharge plungers (5) of the device are removed from the device front (5) to discharge the contents of the cartridge. 3) are moved out and advance the delivery pistons inserted in the cartridge cylinders (12). For this purpose, the link guide (4) is continuous on both sides of a straight line (8), which connects the centers of both plungers (5), and the insertion opening (9) extends transversely to said straight line (8). In the case of plungers (5) arranged side by side in the device (1), the insertion opening (9) is located on one side edge, in the case of plungers arranged one above the other, however, advantageously on the upper edge of the device front. In contrast to the prior art, thanks to the new link guide (4), it is possible to reduce the size of the cartridge flange (11) by side sections (13) and even securely anchor individual cylinders (12) with separate flanges.

Description

Die Erfindung betrifft ein Austraggerät zur Bedienung von mit Halteflansch versehenen Doppelkartuschen, welches eine front­seitige Kulissenführung mit einseitiger Einschuböffnung zur Aufnahme des Halteflansches sowie zwei parallelachsig aus der Gerätefront heraus bewegbare Austragstössel aufweist.The invention relates to a discharge device for operating double cartridges provided with a holding flange, which has a front link guide with a one-sided insertion opening for receiving the holding flange and two discharge plungers which can be moved out of the front of the device in parallel axis.

Bei einem zum Stand der Technik gehörenden Austraggerät die­ser Art (siehe z. B. EP-A 0 252 401 = Fall K 112) sind die beiden Austragstössel nebeneinanderliegend im Gerät angeord­net, und die Einschuböffnung der Kulissenführung befindet sich am oberen Rand der Gerätefront. Somit werden die Doppel­kartuschen mit ihrem im wesentlichen rechteckigen Halteflansch von oben in die Führung eingeschoben und der Flansch wird dann an der unteren Längsseite und den beiden seitlichen Schmalseiten gefasst, während die obere Längsseite des Flan­sches frei bleibt. Infolge der relativ weiten Einschuböff­nung - sie muss mindestens die Durchmesser beider nebenein­anderliegender Vorratszylinder der Doppelkartusche aufneh­men - wird jedoch eine solide Verankerung der Kartusche am Austraggerät kaum erreicht, wobei zu beachten ist, dass diese Verankerung während des Materialaustrags, wenn die Stössel die Förderkolben in den Kartuschenzylindern beaufschlagen, erheblichen Belastungen ausgesetzt ist. Dadurch entstehende Verbiegungen des Flansches und Verformungen der Kartusche insgesamt können zu Störungen des Materialaustrags führen; so verursacht bei schrittweisem Austrag die elastische Verbiegung unerwünschten Leerhub jeweils beim Stösselvor­ schub und beeinträchtigt anschliessend infolge Rückfederung die sofortige Entlastung der Förderkolben, wie sie in der obengenannten, veröffentlichten Anmeldung vorgeschlagen wur-­de. Besonders dann erweist sich die Verankerung als ungenü­gend, wenn die beiden Kartuschen-Zylinder längs voneinander getrennt, d.h. praktisch nur über den Halteflansch und im Mün­dungsbereich miteinander verbunden sind. Eine gewisse Abhil­fe - wenn überhaupt - ist bei der bekannten Geräteausführung nur durch Verdickung bzw. Versteifung (Verrippung) des Kar­tuschen-Halteflansches möglich. Dadurch erhöht sich aber der Material- und Herstellungsaufwand für die Kartuschen, was bei diesen für Einmal-Verwendung bestimmten Wegwerfteilen höchst unerwünscht ist.In the case of a discharge device of this type belonging to the prior art (see, for example, EP-A 0 252 401 = case K 112), the two discharge plungers are arranged next to one another in the device, and the insertion opening of the slide guide is located at the upper edge of the device front. Thus, the double cartridges with their essentially rectangular retaining flange are inserted from above into the guide and the flange is then gripped on the lower long side and the two narrow sides, while the upper long side of the flange remains free. As a result of the relatively wide insertion opening - it must at least accommodate the diameters of the two adjacent storage cylinders of the double cartridge - a solid anchoring of the cartridge on the dispensing device is hardly achieved, although it should be noted that this anchoring during the material discharge when the plunger pushes the delivery pistons in the cartridge cylinders act, is exposed to considerable loads. The resulting bending of the flange and deformation of the cartridge as a whole can lead to disruptions in the material discharge; Thus, with gradual discharge, the elastic bending causes undesired idle strokes at the ram then shocks and adversely affects the immediate relief of the delivery pistons due to springback, as was proposed in the above-mentioned published application. In particular, the anchoring proves to be insufficient if the two cartridge cylinders are longitudinally separated from one another, ie are practically only connected to one another via the holding flange and in the mouth area. A certain remedy - if at all - is only possible with the known device design by thickening or stiffening (ribbing) of the cartridge holding flange. However, this increases the material and manufacturing costs for the cartridges, which is highly undesirable for these disposable parts intended for single use.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine einwandfreie, hoch belastbare Verankerung zwischen Austrag­gerät und austauschbaren Kartuschen durch geeignete Geräte­ausbildung und ohne Mehraufwand bei den Kartuschen zu errei­chen.The present invention has for its object to achieve a perfect, highly resilient anchoring between discharge device and exchangeable cartridges by suitable device training and without additional effort in the cartridges.

Diese Aufgabe wird bei einem Austraggerät der genannten Art erfindungsgemäss dadurch gelöst, dass die Kulissenführung beidseits der die Zentren beider Stössel verbindenden Gera­den durchgehend ist und die Einschuböffnung sich quer zu die­ser Geraden erstreckt. Dadurch werden beide Längsseiten des Halteflansches in der Kulissenführung durchgehend gefasst und nur eine Schmalseite, entsprechend einem einzigen Zylinder­durchmesser, bleibt an der entsprechend kurzen Einschuböff­nung frei. Somit ergibt sich durch eine an sich einfache Massnahme und ohne Mehraufwand am Gerät eine entscheidend verbesserte, "eng gefasste" Kartuschen-Halterung, welche störende Verformungen praktisch verhindert. Bevorzugte Vari­anten, nämlich seitlicher Einschub bei im Gerät nebeneinan­der angeordneten Stösseln bzw. Einschub von oben bei überein­ander angeordneten Stösseln, sind in den Ansprüchen 2 und 3 angegeben. Bei besonderer Ausgestaltung der Kulissenführung gemäss Anspruch 4 ergibt sich überraschenderweise sogar die Möglichkeit, den Halteflansch der Kartusche kleiner als bisher auszuführen und somit an diesen Wegwerfteilen Einspa­rungen an Material sowie Lager- und Transportvolumen zu er­zielen.This object is achieved according to the invention in a discharge device of the type mentioned in that the link guide is continuous on both sides of the straight line connecting the centers of both rams and the insertion opening extends transversely to this straight line. As a result, both longitudinal sides of the holding flange are gripped continuously in the link guide and only one narrow side, corresponding to a single cylinder diameter, remains free at the correspondingly short insertion opening. A simple measure and without additional effort on the device thus results in a significantly improved, "narrow" cartridge holder, which practically prevents disruptive deformations. Preferred variants, namely lateral insertion with plungers arranged side by side in the device or insertion from above with plungers arranged one above the other, are specified in claims 2 and 3. With a special design of the link guide according to claim 4, surprisingly, there is even the possibility of the holding flange of the cartridge being smaller than To date, and thus to achieve savings in material, storage and transport volume on these disposable parts.

Nachstehend werden Ausführungsbeispiele der Erfindung im Zu­sammenhang mit der Zeichnung näher erläutert.

  • Fig. 1 zeigt als erste Ausführungsform ein manuell zu be­tätigendes Austraggerät zusammen mit einer seitlich einzuschiebenden (nur teilweise dargestellten) Doppelkartusche,
  • Fig. 2 zeigt einen Vertikalschnitt durch die Frontpartie des Gerätes entlang der Linie II - II in Fig. 1,
  • Fig. 3 zeigt als zweite Ausführungsform ein Austraggerät mit pneumatischem Stösselantrieb und Kartuschen-­Einschub von oben, und
  • Fig. 4 ist die Stirnansicht einer weiteren Geräte-Variante für Kartuschen mit ungleichen Zylindern, deren Um­riss über dem Gerät strichpunktiert angedeutet ist.
Exemplary embodiments of the invention are explained in more detail below in connection with the drawing.
  • 1 shows as a first embodiment a manually operated discharge device together with a double cartridge to be inserted laterally (only partially shown),
  • 2 shows a vertical section through the front part of the device along the line II-II in FIG. 1,
  • Fig. 3 shows a second embodiment of a discharge device with a pneumatic plunger drive and cartridge insert from above, and
  • Fig. 4 is the front view of another device variant for cartridges with unequal cylinders, the outline of which is indicated by dash-dotted lines above the device.

Das Austraggerät 1 gemäss Fig 1 und 2 dient zur austausch­baren Aufnahme und Bedienung von Doppelkartuschen 10, von denen eine einschubbereit neben dem Gerät in Fig. 1 teil­weise dargestellt ist. Solche an sich bekannten Doppelkar­tuschen 10 weisen einen im allgemeinen rechteckigen Halte­flansch 11 auf, von welchem zwei (abgebrochen dargestellte) parallele Hohlzylinder 12 ausgehen. Die beiden Zylinder der Kartusche 10 dienen zur getrennten Lagerung und Verteilung von zwei im allgemeinen pastenförmigen oder dickflüssigen Massen, Bestandteilen eines sogenannten Zweikomponenten-­Systems, die beim Austragen aus den Kartuschenzylindern zwecks Verwendung miteinander vermischt werden. Zwecks Aus­trags der Massen aus den beiden Zylindern 12 enthält jeder Zylinder einen (nicht dargestellten) Förderkolben, welcher zur Beaufschlagung durch je einen Austragstössel 5 des Ge­ rätes 1 bestimmt ist (siehe auch EP-A 0 252 401 = Fall K 112).The discharge device 1 according to FIGS. 1 and 2 is used for the interchangeable reception and operation of double cartridges 10, one of which is shown ready for insertion next to the device in FIG. 1. Such double cartridges 10, which are known per se, have a generally rectangular holding flange 11, from which two (shown broken off) parallel hollow cylinders 12 originate. The two cylinders of the cartridge 10 are used for the separate storage and distribution of two generally pasty or viscous masses, components of a so-called two-component system, which are mixed together when they are discharged from the cartridge cylinders for use. For the purpose of discharging the masses from the two cylinders 12, each cylinder contains a delivery piston (not shown), which is loaded by a discharge plunger 5 of the Ge advises 1 is determined (see also EP-A 0 252 401 = case K 112).

Das Austraggerät 1 weist einen Gerätekörper 2 auf, mit wel­chem ein Haltegriff 6 fest verbunden ist. Am Gerätekörper ist im Bereich des Haltegriffs 6 ein Betätigungsgriff 7 ange­lenkt, welcher über einen hier nicht dargestellten Mechanis­mus im Innern des Gerätekörpers 2 auf die beiden Stössel 5 einwirkt. Die Stössel 5 sind in den Fig. 1 und 2 in ihrer Ausgangslage, d.h. im Gerätekörper 2 versenkt, dargestellt. Bei Betätigung des Griffes 7 werden sie parallel aus der Ge­rätefront 3 herausbewegt und gegen die Förderkolben einer eingesetzten Kartusche 10 gepresst, wodurch diese Förderkol­ben vorgeschoben und der Kartuscheninhalt ausgetragen wird. Zur Aufnahme des Halteflansches 11 einer Doppelkartusche ist an der Gerätefront 3 eine Kulissenführung 4 vorgesehen. Zum Ein- und Ausschieben einer Kartusche 10 weist die Kulissen­führung eine Einschuböffnung 9 auf, die sich - bei der darge­stellten Geräteausführung mit nebeneinander angeordneten Stösseln 5 - an einem (linken oder rechten) Seitenrand der Gerätefront 3 befindet. Somit erstreckt sich die Einschub­öffnung 9 quer zu einer Geraden 8, welche die Zentren der beiden Stössel 5 verbindet. Die Kulissenführung 4 ist beid­seits der genannten Geraden 8 durchgehend, und an ihrem der Einschuböffnung 9 gegenüberliegenden Ende bildet sie einen Anschlag zur Positionierung des Halteflansches 11.The discharge device 1 has a device body 2, with which a handle 6 is firmly connected. An actuating handle 7 is articulated on the device body in the area of the handle 6, which acts on the two plungers 5 via a mechanism (not shown here) inside the device body 2. The plungers 5 are in their initial position, i.e. recessed in the device body 2, shown. When the handle 7 is actuated, they are moved out of the front of the device 3 in parallel and pressed against the delivery pistons of an inserted cartridge 10, whereby these delivery pistons are advanced and the cartridge contents are discharged. To accommodate the holding flange 11 of a double cartridge, a link guide 4 is provided on the device front 3. To slide a cartridge 10 in and out, the link guide has an insertion opening 9 which, in the device embodiment shown with plungers 5 arranged next to one another, is located on a (left or right) side edge of the device front 3. The insertion opening 9 thus extends transversely to a straight line 8 which connects the centers of the two plungers 5. The link guide 4 is continuous on both sides of the straight line 8 mentioned, and at its end opposite the insertion opening 9 it forms a stop for positioning the holding flange 11.

Vorzugsweise ist, wie dargestellt, am erwähnten Ende der Ku­lissenführung die Frontausnehmung 4a entsprechend dem Um­fang eines Kartuschen-Zylinders 12 als Halbkreis geformt, wobei die Führung 4 selbst tangential zum Halbkreis endet.As shown, the front recess 4a is preferably shaped as a semicircle corresponding to the circumference of a cartridge cylinder 12, as shown, the guide 4 itself ending tangentially to the semicircle.

Der Halteflansch 11 einer eingeschobenen Doppelkartusche 10 ist somit durch die Kulissenführung 4 an der einen Schmal­seite sowie an beiden Längsseiten durchgehend gefasst; nur die zweite Schmalseite liegt über eine Strecke entsprechend dem Durchmesser eines einzigen Kartuschenzylinders frei. Dadurch ergibt sich eine sehr stabile Verbindung zwischen Gerät und Kartusche, welche auch hohen Belastungen während des Vortriebs der beiden Austragstössel ohne nennenswerte Verformungen des Flansches bzw. der Kartusche insgesamt standhält.The retaining flange 11 of an inserted double cartridge 10 is thus gripped continuously by the link guide 4 on one narrow side and on both long sides; only the second narrow side is exposed over a distance corresponding to the diameter of a single cartridge cylinder. This results in a very stable connection between the device and the cartridge, which can also withstand high loads withstand the advance of the two discharge plungers without any significant deformation of the flange or the cartridge.

Bei Geräten bekannter Ausführung, bei welchen die Kulissen­führung nur eine Längsseite, jedoch beide Schmalseiten des Halteflansches umfasst, muss der Flansch notwendigerweise an beiden Schmalseiten um Abschnitte 13 über die Zylinder-Aus­sendurchmesser vorstehen, wie in Fig. 1 strichpunktiert an­gedeutet ist. Bei der vorgenannten, vorzugsweisen Gestaltung der Frontausnehmung 4a und des Anschlag-Endes der Kulissenfüh­rung können diese Abschnitte 13 jedoch entfallen, d.h. der Halteflansch 11 kann an seinen beiden Schmalseiten tangential und bündig mit den Kartuschenzylindern 12 abschliessen. So­mit erlaubt die vorliegende Gestaltung der Kulissenführung Materialeinsparungen an der in hohen Stückzahlen und mög­lichst billig herzustellenden Wegwerf-Kartusche 10. Ander­seits kann aber selbstverständlich die vorliegende Kulissen­führung auch zur Aufnahme herkömmlicher Doppelkartuschen mit am Halteflansch vorstehenden seitlichen Abschnitten 13 ge­staltet werden.In devices of known design, in which the link guide comprises only one long side, but both narrow sides of the holding flange, the flange must necessarily protrude on both narrow sides by sections 13 beyond the cylinder outer diameter, as is indicated by dash-dotted lines in FIG. 1. With the aforementioned, preferred design of the front recess 4a and the stop end of the link guide, these sections 13 can be omitted, i.e. the holding flange 11 can be tangential and flush with the cartridge cylinders 12 on its two narrow sides. Thus, the present design of the slide guide allows material savings to be made on the disposable cartridge 10 in large quantities and as cheaply as possible. On the other hand, the present slide guide can of course also be designed to accommodate conventional double cartridges with lateral sections 13 protruding from the holding flange.

Schliesslich ermöglicht es die vorliegende Gestaltung des Austraggerätes aber auch, einzelne, d.h. getrennte, je mit Halteflansch versehene Kartuschenzylinder paarweise oder einzeln (für Einkomponenten-Systeme) aufzunehmen, was bei Geräten nach dem Stand der Technik völlig ausgeschlossen wäre.Finally, the present design of the discharge device also enables individual, i.e. separate cartridge cylinders, each provided with a holding flange, in pairs or individually (for one-component systems), which would be completely ruled out for devices according to the prior art.

Das Austraggerät 20 nach Fig. 3 ist in an sich bekannter Weise für Druckluft-Antrieb vorgesehen. Der Gerätekörper wird dementsprechend im wesentlichen durch eine Zylinder/­Kolben-Einheit 22 gebildet. Ein Druckluftanschluss 21 be­findet sich unten an dem mit der Gerätefront 23 verbunde­nen Handgriff 26, in welchem ein vom Griff 27 zu betäti­gendes Druckluft-Steuerventil (nicht sichtbar) eingebaut ist. Die beiden parallelachsig aus der Gerätefront 23 heraus bewegbaren Austragstössel 25 sind mit dem (nicht dargestellten) Kolben im Innern des Gerätekörpers 22 verbun­den und hier senkrecht übereinander im Gerät angeordnet. Die Einschuböffnung 29 der Kulissenführung 24 befindet sich bei dieser Stösselanordnung am oberen Rand der Gerätefront 23; sie verläuft wiederum quer zur Geraden 28, welche die Zentren beider Stössel 25 verbindet. Die Kulissenführung 24 ist zu beiden Seiten der Geraden 28 durchgehend und im unteren Be­reich vorzugsweise entsprechend dem ersten Ausführungsbei­spiel gestaltet, indem die Frontausnehmung 24a einen dem Umfang eines Kartuschen-Zylinders angepassten Halbkreis bil­det und die Führung 24 am untern Ende tangential zu diesem Halbkreis verläuft.The discharge device 20 according to FIG. 3 is provided in a manner known per se for compressed air drive. Accordingly, the device body is essentially formed by a cylinder / piston unit 22. A compressed air connection 21 is located at the bottom on the handle 26 connected to the device front 23, in which a compressed air control valve (not visible) to be actuated by the handle 27 is installed. The two discharge plungers 25, which can be moved out of the device front 23 in parallel axis, are not ( ) piston connected inside the device body 22 and here arranged vertically one above the other in the device. The insertion opening 29 of the link guide 24 is in this plunger arrangement on the upper edge of the device front 23; it in turn extends transversely to the straight line 28, which connects the centers of both plungers 25. The link guide 24 is continuous on both sides of the straight line 28 and in the lower region is preferably designed in accordance with the first exemplary embodiment in that the front recess 24a forms a semicircle which is adapted to the circumference of a cartridge cylinder and the guide 24 extends tangentially to this semicircle at the lower end.

In das Austraggerät 20 werden Doppelkartuschen 10 von oben eingeschoben, und zwar natürlich mit vertikal stehenden Längsseiten des Halteflansches 11, d.h. in einer gegenüber Fig. 1 um 90° gedrehten Lage. Bezüglich einwandfreier Veran­kerung der Doppelkartuschen in der Kulissenführung 24, Ge­staltungsmöglichkeiten der Kulissenführung und des Kartuschen-­Halteflansches sowie Möglichkeiten des Einschubs von unab­hängigen Einzelkartuschen gilt dasselbe wie im Zusammenhang mit dem Ausführungsbeispiel nach Fig. 1 und 2 beschrieben.Double cartridges 10 are inserted into the discharge device 20 from above, naturally with the longitudinal sides of the holding flange 11 standing vertically, i.e. in a position rotated by 90 ° with respect to FIG. 1. With regard to the perfect anchoring of the double cartridges in the link guide 24, design options for the link guide and the cartridge holding flange and options for inserting independent individual cartridges, the same applies as described in connection with the exemplary embodiment according to FIGS. 1 and 2.

Wie das weitere Ausführungsbeispiel nach Fig. 4 zeigt, kann ein Austraggerät 30 nach dem gleichen Prinzip auch ohne wei­teres für die Aufnahme und Bedienung von Doppelkartuschen 10′ gestaltet werden, deren beide Zylinder 12′ ungleiche Durch­messer haben und deren Halteflansch 11′ dementsprechend etwa den dargestellten Umriss aufweist. Das Gerät - hier mit übereinanderliegenden Austragstösseln 35 und am oberen Rand der Gerätefront 33 angeordneter Einschuböffnung 39 - erhält dann eine Kulissenführung 34, die zu der beide Stösselzen­tren verbindenden Geraden 38 symmetrisch ist, wobei aber die beidseits durchgehenden Abschnitte entsprechend der Form des Flansches 11′ gegeneinander geneigt sind. Die Frontausneh­mung 34a ist zweckmässig so geformt, dass sie an der einge­setzten Kartusche beide Zylinder 12′ seitlich berührt und unten um den kleineren Zylinder herumgeführt ist. Hierbei entsteht wiederum eine einwandfrei kraftschlüssige Veranke­rung des Halteflansches, wie sie nach dem Stand der Technik nicht möglich wäre.4, a discharge device 30 can also be designed according to the same principle for the reception and operation of double cartridges 10 ', the two cylinders 12' of unequal diameter and the retaining flange 11 'accordingly corresponding to that shown Outlines. The device - here with the discharge plungers 35 one above the other and the insertion opening 39 arranged on the upper edge of the device front 33 - then receives a link guide 34 which is symmetrical to the straight line 38 connecting the two plunger centers, but with the sections on both sides corresponding to the shape of the flange 11 'against one another are inclined. The front recess 34a is expediently shaped so that it touches both cylinders 12 'laterally on the cartridge used and is guided around the smaller cylinder at the bottom. Here in turn, there is a perfectly non-positive anchoring of the retaining flange, which would not be possible according to the prior art.

Zu erwähnen ist noch, dass für die vorliegende Erfindung nicht notwendigerweise an den Doppelkartuschen ein solcher Halte­flansch vorausgesetzt wird, welcher mit den Kartuschenzylin­dern einstückig verbunden ist; denkbar wäre auch eine lose (z.B. mehrmals verwendbare, im wesentlichen rechteckige) Flanschplatte mit Durchstecköffnungen für die Zylinder, wel­che dann nur mit schmalen Ringflanschen zur Anlage an der Flanschplatte versehen wären.It should also be mentioned that for the present invention, such a holding flange, which is integrally connected to the cartridge cylinders, is not necessarily required on the double cartridges; A loose (e.g. reusable, essentially rectangular) flange plate with through openings for the cylinders would also be conceivable, which would then only be provided with narrow ring flanges for contact with the flange plate.

Claims (4)

1. Austraggerät zur Bedienung von mit Halteflansch (11) ver­sehenen Doppelkartuschen (10), welches eine frontseitige Kulissenführung (4, 24, 34) mit einseitiger Einschuböffnung (9, 29, 39) zur Aufnahme des Halteflansches sowie zwei pa­rallelachsig aus der Gerätefront (3, 23, 33) heraus bewegbare Austragstössel (5, 25, 35) aufweist, dadurch gekennzeichnet, dass die Kulissenführung (4, 24, 34) beidseits der die Zen­tren beider Stössel (5, 25, 35) verbindenden Geraden (8, 28, 38) durchgehend ist und die Einschuböffnung (9, 29, 39) sich quer zu dieser Geraden erstreckt.1.Discharge device for operating double cartridges (10) provided with a holding flange (11), which has a sliding block guide (4, 24, 34) on the front with one-sided insertion opening (9, 29, 39) for receiving the holding flange and two parallel axes from the front of the device (3 , 23, 33) has movable discharge plungers (5, 25, 35), characterized in that the link guide (4, 24, 34) on both sides of the straight line (8, 28, connecting the centers of both plungers (5, 25, 35) 38) is continuous and the insertion opening (9, 29, 39) extends transversely to this straight line. 2. Austraggerät nach Anspruch 1, mit nebeneinander im Gerät (1) angeordneten Austragstösseln (5), dadurch gekenn­zeichnet, dass die Einschuböffnung (9) sich am linken oder rechten Seitenrand der Gerätefront (3) befindet.2. Discharge device according to claim 1, with discharge tappets (5) arranged next to one another in the device (1), characterized in that the insertion opening (9) is located on the left or right side edge of the device front (3). 3. Austraggerät nach Anspruch 1, mit übereinander im Gerät (20, 30) angeordneten Austragstösseln (25, 35), dadurch gekennzeichnet, dass die Einschuböffnung (29, 39) sich am oberen Rand der Gerätefront (23, 33) befindet.3. Discharge device according to claim 1, with discharge plungers (25, 35) arranged one above the other in the device (20, 30), characterized in that the insertion opening (29, 39) is located at the upper edge of the device front (23, 33). 4. Austraggerät nach einem der vorangehenden Ansprüche, da­durch gekennzeichnet, dass die Frontausnehmung (4a, 24a) der Kulissenführung (4, 24) an ihrem der Einschuböffnung (9, 29) gegenüberliegenden Ende entsprechend dem Umfang ei­nes Kartuschen-Zylinders (12) als Halbkreis geformt ist und die Führung (4, 24) selbst tangential zum Halbkreis endet.4. Dispensing device according to one of the preceding claims, characterized in that the front recess (4a, 24a) of the link guide (4, 24) at its end opposite the insertion opening (9, 29) corresponding to the circumference of a cartridge cylinder (12) as a semicircle is shaped and the guide (4, 24) itself ends tangentially to the semicircle.
EP88107002A 1987-05-20 1988-05-02 Dispensing device for double compartment cartridges Expired - Lifetime EP0291753B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1946/87 1987-05-20
CH194687 1987-05-20

Publications (3)

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EP0291753A2 true EP0291753A2 (en) 1988-11-23
EP0291753A3 EP0291753A3 (en) 1989-01-04
EP0291753B1 EP0291753B1 (en) 1990-11-14

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ID=4222290

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EP88107002A Expired - Lifetime EP0291753B1 (en) 1987-05-20 1988-05-02 Dispensing device for double compartment cartridges

Country Status (5)

Country Link
US (1) US5005735A (en)
EP (1) EP0291753B1 (en)
JP (1) JPS63310667A (en)
DE (1) DE3861055D1 (en)
ES (1) ES2019118B3 (en)

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US5224628A (en) * 1990-04-10 1993-07-06 Keller Wilhelm A Dispensing apparatus for use with twin cartridges
EP0578896A1 (en) * 1992-07-17 1994-01-19 Wilhelm A. Keller Dispensing cartridge
US5897028A (en) * 1994-01-26 1999-04-27 Ciba Specialty Chemicals Corporation Two component adhesive dispensing unit
EP1602342A1 (en) 2004-06-04 2005-12-07 3M Espe AG Locking assembly and dispensing cartridge comprising the same
DE10038882B4 (en) * 1999-09-27 2009-09-03 Ernst Mühlbauer KG Device for dispensing a mixed multicomponent compound, in particular for dental purposes

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DE9017323U1 (en) * 1990-12-21 1992-04-16 Thera Patent Gmbh & Co Kg Gesellschaft Fuer Industrielle Schutzrechte, 8031 Seefeld, De
US5203839A (en) * 1991-06-14 1993-04-20 Skaggs Kenneth R Apparatus for dispensing adhesive materials
US5411180A (en) * 1993-05-07 1995-05-02 Innovative Technology Sales, Inc. Self-contained hydraulic dispensing mechanism with pressure relief regulator
US5546996A (en) 1994-08-09 1996-08-20 Minnesota Mining And Manufacturing Company Dispensing cartridge refillng system
US5755362A (en) * 1995-02-27 1998-05-26 Minnesota Mining & Manufacturing Co. Hand-held applicator with force limiting clutch
US5722829A (en) * 1995-02-27 1998-03-03 Minnesota Mining & Manufacturing Co. Cartridge dispensing system for dental material
US5743436A (en) * 1995-12-08 1998-04-28 Minnesota Mining & Manufacturing Co. Applicator for dispensing material from a dual chamber cartridge
ES2141459T3 (en) * 1996-02-21 2000-03-16 Wilhelm A Keller MEANS FOR THE CORRECT FIXING OF A CARTRIDGE OF VARIOUS COMPONENTS TO A DISTRIBUTOR.
DE29820832U1 (en) * 1998-11-20 1999-10-07 Muehlbauer Ernst Kg Arrangement for mixing multicomponent materials, in particular for dental purposes
US7073691B2 (en) * 2003-07-31 2006-07-11 Danny Rumrill Caulking gun
GB0417593D0 (en) * 2004-08-06 2004-09-08 Cox Ltd Dispensing gun
SI1796849T1 (en) * 2004-08-09 2010-11-30 Sulzer Mixpac Ag Discharging device comprising a discharge mechanism and a multicomponent syringe
WO2006068921A2 (en) * 2004-12-22 2006-06-29 Alcon, Inc. Device for ophthalmic drug delivery
US8197545B2 (en) * 2005-10-27 2012-06-12 Depuy Spine, Inc. Nucleus augmentation delivery device and technique
DE602005009728D1 (en) 2005-12-06 2008-10-23 3M Innovative Properties Co Dispensing cartridge with handle
AU2007218982B2 (en) * 2006-02-24 2011-03-10 Sulzer Mixpac Ag Dispensing appliance for a double syringe
GB0707573D0 (en) * 2007-04-19 2007-05-30 3M Innovative Properties Co Dispensing device with locking member
TWI451862B (en) * 2007-10-09 2014-09-11 Alcon Res Ltd Thermal coefficient driven drug pellet size for ophthalmic injection
TWI498136B (en) * 2007-10-09 2015-09-01 Alcon Res Ltd An injection device for delivering a rate and temperature-dependent substance into the eye and method of preparing the same
US8372036B2 (en) * 2009-05-06 2013-02-12 Alcon Research, Ltd. Multi-layer heat assembly for a drug delivery device
US8177747B2 (en) * 2009-12-22 2012-05-15 Alcon Research, Ltd. Method and apparatus for drug delivery
US20120279996A1 (en) * 2011-05-06 2012-11-08 Nordson Corporation Adapter for syringes and associated dispensing devices and methods
CH705569A1 (en) * 2011-11-01 2013-05-15 Medmix Systems Ag Discharge apparatus for semi-solid materials.
CA2787737C (en) * 2011-12-22 2019-04-30 Sulzer Mixpac Ag Dispensing device for multi-component cartridges
US9289797B2 (en) * 2012-11-06 2016-03-22 Nordson Corporation Dispensing assembly and method for assembling a dispenser and dispensing a fluid
US9302289B2 (en) * 2014-03-04 2016-04-05 Nordson Corporation Dispensing devices for use with side-by-side fluid cartridges and related methods

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US3330444A (en) * 1966-04-07 1967-07-11 Demco North Manchester Ind Plunger type dispensing device
US3828980A (en) * 1972-11-06 1974-08-13 Chem Dev Corp Dispenser for precisely metered dispensing of viscous fluids
EP0236129A2 (en) * 1986-03-03 1987-09-09 P.C. Cox (Newbury) Limited Pneumatic dispensers for viscous materials

Cited By (6)

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Publication number Priority date Publication date Assignee Title
US5224628A (en) * 1990-04-10 1993-07-06 Keller Wilhelm A Dispensing apparatus for use with twin cartridges
EP0578896A1 (en) * 1992-07-17 1994-01-19 Wilhelm A. Keller Dispensing cartridge
US5330079A (en) * 1992-07-17 1994-07-19 Keller Wilheim A Dispensing cartridge with reinforced retaining flange
US5897028A (en) * 1994-01-26 1999-04-27 Ciba Specialty Chemicals Corporation Two component adhesive dispensing unit
DE10038882B4 (en) * 1999-09-27 2009-09-03 Ernst Mühlbauer KG Device for dispensing a mixed multicomponent compound, in particular for dental purposes
EP1602342A1 (en) 2004-06-04 2005-12-07 3M Espe AG Locking assembly and dispensing cartridge comprising the same

Also Published As

Publication number Publication date
EP0291753B1 (en) 1990-11-14
ES2019118B3 (en) 1991-06-01
EP0291753A3 (en) 1989-01-04
DE3861055D1 (en) 1990-12-20
JPS63310667A (en) 1988-12-19
US5005735A (en) 1991-04-09

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