EP0615787B1 - Manual dispensing device for double cartridge - Google Patents

Manual dispensing device for double cartridge Download PDF

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Publication number
EP0615787B1
EP0615787B1 EP94810108A EP94810108A EP0615787B1 EP 0615787 B1 EP0615787 B1 EP 0615787B1 EP 94810108 A EP94810108 A EP 94810108A EP 94810108 A EP94810108 A EP 94810108A EP 0615787 B1 EP0615787 B1 EP 0615787B1
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EP
European Patent Office
Prior art keywords
dispensing device
double
thrust
trigger lever
ram
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP94810108A
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German (de)
French (fr)
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EP0615787A1 (en
Inventor
Wilhelm A. Keller
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—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
    • B05C17/0116—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 characterised by the piston driving means
    • B05C17/012—Stepwise advancing mechanism, e.g. pawl and ratchets
    • B05C17/0123—Lever actuated
    • 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
    • B05C17/0116—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 characterised by the piston driving means
    • B05C17/012—Stepwise advancing mechanism, e.g. pawl and ratchets
    • B05C17/0123—Lever actuated
    • B05C17/0126—Lever actuated comprising an element, e.g. an arc compensating element, articulated at one end on the lever and at the other end on the piston rod driving means, e.g. a pawl

Definitions

  • the present invention relates to a manually operated discharge device for a double discharge cartridge for two-component compounds according to the generic term of Claim 1.
  • a manually operated discharge device for a double discharge cartridge for two-component compounds according to the generic term of Claim 1.
  • Such a device is on the Market. It is a smaller discharge device, where the double push rod is on the bottom has attached teeth into which a common, performing a circular arc, attached to a jack Feed tooth engages.
  • the push rod made of a high-quality plastic manufacture and on the other hand for the trigger and the single feed tooth or pawl to use metal parts, making it expensive and time-consuming to assemble is.
  • the forward movement of the feed element in the direction of the push rods or discharge direction improved in that with the Trigger lever cooperating arch compensation elements provided are the one parallel or perpendicular to the Execute push rods in a standing motion.
  • the devices are designed to be particularly cost-effective to be made. Nevertheless, it is as accurate as possible Dosing with exact adherence to the mixing ratio of the masses to be discharged, so that overall high Requirements for the mechanical components of such Device.
  • the jacking must both be smooth as well as being precise and also with large forces do not jam. Also significantly higher propulsive forces demands. To do this, the one to be transferred from the trigger lever Force as precisely as possible in the direction of the push rods and to enable the largest possible reduction, the teeth must be fine, but in such a way that the relatively considerable forces are well transmitted can.
  • the device 1 has a handle 2 with trigger 3, the acts on a drive on a double push rod 4, the on ejection pistons of a double cartridge, not shown acts to discharge the two components of the cartridge.
  • the handle 2 is made in one piece with the housing 5, the housing different guides, ribs, etc. has, as from the following description even better will emerge.
  • the trigger 3 is above one Bolt 6 connected to a sled-shaped feed element 7, that over four guide cams 8, see Fig. 2, in two guides 9 in the lower housing part and between them and the underside 11 of the housing cover 12 is guided, thereby preventing the carriage 7 from being operated of the trigger moves upwards.
  • the bolt 6 is arranged in the carriage so that it is axially in the housing is secured.
  • the trigger 3 is also slightly below the bolt 6, via a second bolt 13 with two arch compensation elements articulated in the form of slide shoes 14, in correspondingly shaped compartments 15 of the housing and down, that is perpendicular to the direction of the push rods are movable.
  • This bow compensation mechanism enables the maximum volume utilization for the upper part of the trigger and thus allows the use of plastic instead of metal.
  • the dimensions of the housing compartments 15 selected such that the sliding shoes slide without play, but with little friction is guaranteed. Since the feed element is not when the trigger is actuated can dodge upward as it passes through the case cover is held, he must inevitably adjust the sheet dodge below.
  • the transfer of the movement of the thrust member to the Push rods takes place via a driver 16, which in the present Case has four teeth 17, which in one at the Underside of the push rods 4 located teeth 18 intervene.
  • the driver 16 with the teeth 17 is as Hollow body formed in which a compression spring 19 is arranged is. The compression spring is supported on the thrust element from. To pull the push rods back when replacing A lever engages to enable the cartridges 20, which is guided on the housing, on the driver to the Uncouple teeth from the teeth.
  • lever 20 in Detail shown.
  • the lever seen from the outside, a bead 32, a cut tab 29 and one Tongue 31 for pushing through an elongated wall of the Driver 16 on.
  • a bead 32 When plugging together the lever through a corresponding opening 28 in the housing wall 5 pushed through to the bulge, whereupon the tab springs open and locked the lever against falling out.
  • the driver 23 with the teeth 24 is offset Body formed, with around the lower part smaller diameter, a compression spring 25 is arranged.
  • the compression spring is also based on the thrust element from.
  • the lever 20 has the same tab 29 and the same bead 32 as in the previous embodiment but is fork-shaped and includes at the front an incision 27 on the lower part of the driver.
  • Trigger lever An embodiment variant is shown in FIG who does not necessarily have the arch compensation elements on Trigger lever must be articulated.
  • the trigger 33 has underneath bolt 6 an indentation 34, the one semicircular arch compensation element 35, the same time also serves as an axis of rotation, includes and at Press on this, which is not the case here Slide upwards but the trigger lever dodges downwards.
  • the embodiment according to FIG. 7 contains some simplifications, by doing the bow-balancing movement above all is effected by a tab. It will be in this context only the parts and features that are described differ significantly from the previous examples.
  • the trigger lever 43 of the device 41 is via a bolt 46 hinged to the housing 45 and over the bolt 6 with a Arch compensation tab 36 connected, which in turn over an axis 37 rotatably connected to the feed member 7 which in turn contains the driver 38.
  • the driver is cut out above the tab 36 with some play, to be able to perform a vertical movement and also has a plurality of teeth 17.
  • the tab 36 can be articulated on the feed member Just end up doing a linear motion while using its other end is connected to the trigger lever in such a way that it can perform its arcuate movement there, whereby this construction also makes maximum use of volume enables.
  • the driver 38 has a small cavity on the handle side 39 on, in which a compression spring 40 is arranged, which supported on the thrust member.
  • the driving lever is a variant 42 not at the very bottom but slightly above the compression spring arranged and attacks there on the driver to this for to retract the push rods 44 to unlock.
  • the cover 47 is not as in the previous ones Versions arranged at the top, but screwed on the cartridge side, whereby the otherwise on the housing and the cover acting thrust forces are not absorbed by screws must be made and the assembly even easier becomes.
  • the device consists of a few inexpensive individual parts, that can be put together very easily. It is essential that all parts important for the drive inserted into the lower part of the housing and by placing and Screwing or clamping the housing cover or pushing it in can be secured in the housing grooves.
  • the large contact surface between the teeth on the driver and the teeth enable a significant reduction the specific contact pressure and thus the use of inexpensive plastics.
  • the small tooth pitch a quick follow-up by the trigger and results in a very small dead path of the same.
  • the construction of the trigger in the Area of the axes a larger volume with the same overall length in comparison with the previously known designs and hence its manufacture from inexpensive plastic instead made of metal.

Description

Die vorliegende Erfindung bezieht sich auf ein handbetätigtes Austraggerät für eine Doppelaustragkartusche für Zwei- komponentenmassen nach dem Oberbegriff von Patentanspruch 1. Ein solches Gerät befindet sich auf dem Markt. Dabei handelt es sich um ein kleineres Austraggerät, bei dem die Doppelschubstange eine auf der Unterseite angebrachte Verzahnung aufweist, in die ein gemeinsamer, einen Kreisbogen ausführender, an einer Klinke angebrachter Vorschubzahn eingreift. Infolge des relativ hohen spezifischen Antriebsdruckes ist es notwendig, einerseits die Schubstange aus einem hochwertigen Kunststoff zu fertigen und andererseits für den Abzughebel sowie den einzigen Vorschubzahn bzw. Klinke Metallteile zu verwenden, wodurch die Herstellung teuer und die Montage zeitaufwendig ist.The present invention relates to a manually operated discharge device for a double discharge cartridge for two-component compounds according to the generic term of Claim 1. Such a device is on the Market. It is a smaller discharge device, where the double push rod is on the bottom has attached teeth into which a common, performing a circular arc, attached to a jack Feed tooth engages. As a result of the relatively high specific drive pressure it is necessary on the one hand the push rod made of a high-quality plastic manufacture and on the other hand for the trigger and the single feed tooth or pawl to use metal parts, making it expensive and time-consuming to assemble is.

In der EP-A-0 408 494 des gleichen Anmelders sind mehrere Austraggeräte beschrieben, wobei in einer der dort offenbarten Ausführungsformen die Schubstangen beidseitig eine gegen aussen, d.h. senkrecht zur Ebene, die durch den Griff und den Abzughebel gebildet wird, gerichtete Verzahnung aufweisen, auf die am Schuborgan angebrachte Klinken einwirken. In einem Ausführungsbeispiel erfolgt der Antrieb durch je einen beidseitig angebrachten Schubzahn, der an einem Ende eines unter Federdruck stehenden Schubzahnhalters angeordnet ist. Die in dieser Druckschrift offenbarten Geräte sind für relativ grosse Kartuschen gedacht, wobei jede Schubstange einen Antrieb aufweist.There are several in EP-A-0 408 494 by the same applicant Dispensing devices described, being in one of the there disclosed embodiments, the push rods on both sides one to the outside, i.e. perpendicular to the plane through the Handle and the trigger is formed, directed Have teeth on the attached to the thrust member Act on pawls. In one embodiment, the Driven by a pusher tooth on both sides, the one at one end of a spring-loaded one Thrust tooth holder is arranged. The in this publication disclosed devices are for relatively large cartridges thought, each push rod has a drive.

Aus der EP-A-252 401 des gleichen Anmelders ist ferner ein Austraggerät bekannt, bei der die Verzahnung an der Schubstange nach unten weist, die Uebertragung der Kraft vom Abzughebel darauf jedoch über eine Klinke mit relativ hohem Anpressdruck erfolgt, die, da am Abzughebel angeordnet, ausserdem eine bogenförmige Bewegung ausführt und somit störende Drehmomente erzeugt.From EP-A-252 401 by the same applicant is also a Discharge device known, in which the teeth on the Push rod points downwards, the transmission of the force from the trigger on it via a pawl with relative high contact pressure occurs because of the trigger arranged, also performs an arcuate movement and thus generates disruptive torques.

Es ist von diesem Stand der Technik ausgehend Aufgabe der vorliegenden Erfindung ein Austraggerät anzugeben, bei dem der spezifische Anpressdruck derart herabgesetzt ist, dass die Verwendung kostengünstiger und einfach zu montierender Kunststoffteile, bei gleichzeitiger Erhöhung der Auspresskraft und feinerem Nachfassen möglich ist. Diese Aufgabe wird mit einem im Patentanspruch 1 definierten Austraggerät gelöst.Starting from this prior art, it is the task of present invention to provide a dispenser in which the specific contact pressure is reduced in such a way that the use of inexpensive and easy to assemble Plastic parts, while increasing the pressing force and more detailed follow-up is possible. This task is with a discharge device defined in claim 1 solved.

In bevorzugten Ausführungen der Erfindung wird die Vorwärtsbewegung des Vorschuborgans in Richtung der Schubstangen bzw. Austragrichtung dadurch verbessert, dass mit dem Abzughebel zusammenarbeitende Bogen-Ausgleichselemente vorgesehen sind, die eine parallel, bzw. senkrecht zu den Schubstangen stehende Bewegung ausführen.In preferred embodiments of the invention, the forward movement of the feed element in the direction of the push rods or discharge direction improved in that with the Trigger lever cooperating arch compensation elements provided are the one parallel or perpendicular to the Execute push rods in a standing motion.

Die Erfindung wird im folgenden anhand einer Zeichnung von Ausführungsbeispielen näher erläutert.

  • Fig. 1 zeigt ein erfindungsgemässes Austraggerät im Längsschnitt,
  • Fig. 2 zeigt das Austraggerät von Fig. 1 von vorne und in einem Schnitt,
  • Fig. 3 zeigt das Austraggerät von Fig. 1 von oben,
  • Fig. 4 zeigt ein Detail einer Ausführungsvariante,
  • Fig. 5 zeigt ein Detail von Figur 1 in Draufsicht,
  • Fig. 6 zeigt eine Ausführungsvariante zum Gerät von Fig. 1,
  • Fig. 7 zeigt ein weiteres Ausführungsbeispiel eines erfindungsgemässen Austraggerätes.
    • The invention is explained in more detail below with reference to a drawing of exemplary embodiments.
  • 1 shows a discharge device according to the invention in longitudinal section,
  • 2 shows the discharge device of FIG. 1 from the front and in a section,
  • 3 shows the discharge device of FIG. 1 from above,
  • 4 shows a detail of an embodiment variant,
  • 5 shows a detail of FIG. 1 in plan view,
  • 6 shows an embodiment variant of the device from FIG. 1,
  • 7 shows a further exemplary embodiment of a discharge device according to the invention.

    • Die Ausführungsbeispiele von erfindungsgemässen Geräten sind in der Zeichnung schematisch und teilweise vereinfacht dargestellt, wobei unwesentliche und an sich bekannte Einzelheiten ausgelassen wurden.The exemplary embodiments of devices according to the invention are schematically and partially simplified in the drawing shown, insignificant and known details were left out.

    Die Geräte sind dafür ausgelegt, besonders kostengünstig hergestellt zu werden. Trotzdem ist eine möglichst genaue Dosierung unter genauer Einhaltung des Mischverhältnisses der auszutragenden Massen erwünscht, so dass insgesamt hohe Anforderungen an die mechanischen Komponenten eines solchen Gerätes gestellt werden. Der Vortrieb muss sowohl leichtgängig als auch genau sein und auch bei grossen Kräften nicht klemmen. Auch werden wesentlich höhere Vortriebkräfte verlangt. Dazu muss die vom Abzughebel zu übertragende Kraft möglichst genau in Richtung der Schubstangen erfolgen und um eine möglichst grosse Untersetzung zu ermöglichen, muss die Verzahnung feinteilig sein, jedoch derart, dass die relativ beträchtlichen Kräfte gut übertragen werden können.The devices are designed to be particularly cost-effective to be made. Nevertheless, it is as accurate as possible Dosing with exact adherence to the mixing ratio of the masses to be discharged, so that overall high Requirements for the mechanical components of such Device. The jacking must both be smooth as well as being precise and also with large forces do not jam. Also significantly higher propulsive forces demands. To do this, the one to be transferred from the trigger lever Force as precisely as possible in the direction of the push rods and to enable the largest possible reduction, the teeth must be fine, but in such a way that the relatively considerable forces are well transmitted can.

    Das Gerät 1 weist einen Griff 2 mit Abzughebel 3 auf, der über einen Antrieb auf eine Doppelschubstange 4 wirkt, die auf nicht eingezeichnete Auspresskolben einer Doppelkartusche wirkt, um die beiden Komponenten der Kartusche auszutragen. Der Griff 2 ist einstückig mit dem Gehäuse 5 gefertigt, wobei das Gehäuse verschiedene Führungen, Rippen usw. aufweist, wie aus der nachfolgenden Beschreibung noch besser hervorgehen wird. Der Abzughebel 3 ist oben über einen Bolzen 6 mit einem schlittenförmigen Vorschuborgan 7 verbunden, das über vier Führungsnocken 8, siehe Fig. 2, in zwei Führungen 9 im Gehäuseunterteil und zwischen diesen und der Unterseite 11 des Gehäusedeckels 12 geführt ist, wodurch verhindert wird, dass der Schlitten 7 beim Betätigen des Abzughebels nach oben ausweicht. Der Bolzen 6 ist im Schlitten derart angeordnet, dass er im Gehäuse axial gesichert ist.The device 1 has a handle 2 with trigger 3, the acts on a drive on a double push rod 4, the on ejection pistons of a double cartridge, not shown acts to discharge the two components of the cartridge. The handle 2 is made in one piece with the housing 5, the housing different guides, ribs, etc. has, as from the following description even better will emerge. The trigger 3 is above one Bolt 6 connected to a sled-shaped feed element 7, that over four guide cams 8, see Fig. 2, in two guides 9 in the lower housing part and between them and the underside 11 of the housing cover 12 is guided, thereby preventing the carriage 7 from being operated of the trigger moves upwards. The bolt 6 is arranged in the carriage so that it is axially in the housing is secured.

    Der Abzughebel 3 ist ausserdem, etwas unterhalb von Bolzen 6, über einen zweiten Bolzen 13 mit zwei Bogen-Ausgleichselementen in Form von Gleitschuhen 14 gelenkig verbunden, die in entprechend geformten Fächern 15 des Gehäuses auf und ab, das heisst senkrecht zur Richtung der Schubstangen bewegbar sind. Dieser Bogen-Ausgleichmechanismus ermöglicht die maximale Volumenausnützung für den oberen Teil des Abzughebels und gestattet somit die Verwendung von Kunststoff anstatt Metall. Dabei sind die Abmessungen der Gehäusefächer 15 derart gewählt, dass ein Gleiten der Gleitschuhe ohne Spiel, jedoch mit kleiner Reibung gewährleistet ist. Da beim Betätigen des Abzughebels das Vorschuborgan nicht nach oben ausweichen kann, da es durch den Gehäusedeckel gehalten ist, muss er zwangsläufig beim Bogenausgleich nach unten ausweichen.The trigger 3 is also slightly below the bolt 6, via a second bolt 13 with two arch compensation elements articulated in the form of slide shoes 14, in correspondingly shaped compartments 15 of the housing and down, that is perpendicular to the direction of the push rods are movable. This bow compensation mechanism enables the maximum volume utilization for the upper part of the trigger and thus allows the use of plastic instead of metal. The dimensions of the housing compartments 15 selected such that the sliding shoes slide without play, but with little friction is guaranteed. Since the feed element is not when the trigger is actuated can dodge upward as it passes through the case cover is held, he must inevitably adjust the sheet dodge below.

    Die Uebertragung der Bewegung des Schuborgans auf die Schubstangen erfolgt über einen Mitnehmer 16, der in vorliegendem Fall vier Zähne 17 aufweist, die in eine an der Unterseite der Schubstangen 4 sich befindliche Verzahnung 18 eingreifen. Der Mitnehmer 16 mit den Zähnen 17 ist als Hohlkörper ausgebildet, in dem eine Druckfeder 19 angeordnet ist. Dabei stützt sich die Druckfeder auf dem Schuborgan ab. Um das Zurückzuziehen der Schubstangen beim Auswechseln der Kartuschen zu ermöglichen, greift ein Hebel 20, der am Gehäuse geführt ist, am Mitnehmer an, um dessen Zähne aus der Verzahnung auszukoppeln.The transfer of the movement of the thrust member to the Push rods takes place via a driver 16, which in the present Case has four teeth 17, which in one at the Underside of the push rods 4 located teeth 18 intervene. The driver 16 with the teeth 17 is as Hollow body formed in which a compression spring 19 is arranged is. The compression spring is supported on the thrust element from. To pull the push rods back when replacing A lever engages to enable the cartridges 20, which is guided on the housing, on the driver to the Uncouple teeth from the teeth.

    In Figur 5 ist der Auf- und Zusammenbau von Hebel 20 im Detail dargestellt. Der Hebel weist, von aussen gesehen, einen Wulst 32, eine eingeschnittene Lasche 29 und eine Zunge 31 zum Durchstecken durch eine verlängerte Wand des Mitnehmers 16 auf. Beim Zusammenstecken wird der Hebel durch eine entsprechende Oeffnung 28 in der Gehäusewand 5 bis zum Wulst durchgesteckt, woraufhin die Lasche hochfedert und den Hebel gegen Herausfallen verriegelt.In Figure 5, the assembly and assembly of lever 20 in Detail shown. The lever, seen from the outside, a bead 32, a cut tab 29 and one Tongue 31 for pushing through an elongated wall of the Driver 16 on. When plugging together the lever through a corresponding opening 28 in the housing wall 5 pushed through to the bulge, whereupon the tab springs open and locked the lever against falling out.

    In der Sicht von oben, Fig. 3, erkennt man, dass zwei Rückstellfedern 21 und 22 vorgesehen sind, um das Vorschuborgan und damit auch den Abzughebel in die Ausgangsposition zurückzuführen und die sich an zwei Rippen 10 abstützen. Die Federn könnten jedoch auch durchgehend sein und sich an der Gehäusewand abstützen. Ausserdem sind die Schraubenlöcher 30 zum Befestigen des Gehäusedeckels 12 eingezeichnet. Anstatt den Deckel anzuschrauben kann dieser auch in Nuten oder Ausnehmungen im Gehäuse geführt und befestigt werden.In the view from above, Fig. 3, you can see that two return springs 21 and 22 are provided to the feed member and thus return the trigger to the starting position and which are supported on two ribs 10. The However, feathers could also be continuous and adhere to the Support the housing wall. In addition, the screw holes 30 shown for attaching the housing cover 12. Instead of the cover can also be screwed into grooves or recesses in the housing are guided and fastened.

    In Fig. 4 ist eine Ausführungsvariante des Mitnehmers eingezeichnet. Der Mitnehmer 23 mit den Zähnen 24 ist als abgesetzter Körper ausgebildet, wobei um den unteren Teil mit kleinerem Durchmesser eine Druckfeder 25 angeordnet ist. Dabei stützt sich die Druckfeder auch hier auf das Schuborgan ab. Der Hebel 20 weist die selbe Lasche 29 und den gleichen Wulst 32 wie beim vorhergehenden Ausführungsbeispiel auf, ist jedoch vorne gabelförmig ausgebildet und umfasst einen Einschnitt 27 am unteren Teil des Mitnehmers.4 shows an embodiment variant of the driver. The driver 23 with the teeth 24 is offset Body formed, with around the lower part smaller diameter, a compression spring 25 is arranged. The compression spring is also based on the thrust element from. The lever 20 has the same tab 29 and the same bead 32 as in the previous embodiment but is fork-shaped and includes at the front an incision 27 on the lower part of the driver.

    In Figur 6 ist eine Ausführungsvariante dargestellt, bei der die Bogenausgleichselemente nicht notwendigerweise am Abzughebel angelenkt sein müssen. Der Abzughebel 33 weist unterhalb von Bolzen 6 eine Einbuchtung 34 auf, die ein halbkreisförmiges Bogen-Ausgleichselement 35, das gleichzeitig auch als Drehachse dient, umfasst und beim Betätigen auf diesem aufliegt, wodurch auch hier nicht der Schlitten nach oben sondern der Abzughebel nach unten ausweicht.An embodiment variant is shown in FIG who does not necessarily have the arch compensation elements on Trigger lever must be articulated. The trigger 33 has underneath bolt 6 an indentation 34, the one semicircular arch compensation element 35, the same time also serves as an axis of rotation, includes and at Press on this, which is not the case here Slide upwards but the trigger lever dodges downwards.

    Das Ausführungsbeispiel gemäss Fig. 7 enthält einige Vereinfachungen, indem vor allem die Bogenausgleichsbewegung durch eine Lasche bewirkt wird. Es werden in diesem Zusammenhang nur die Teile und Merkmale beschrieben, die sich von den vorhergehenden Beispielen wesentlich unterscheiden. Der Abzughebel 43 des Gerätes 41 ist über einen Bolzen 46 am Gehäuse 45 angelenkt und über den Bolzen 6 mit einer Bogenausgleichslasche 36 verbunden, die ihrerseits über eine Achse 37 drehbeweglich mit dem Vorschuborgan 7 verbunden ist, das seinerseits den Mitnehmer 38 enthält. Der Mitnehmer ist oberhalb der Lasche 36 mit etwas Spiel ausgeschnitten, um eine vertikale Bewegung ausführen zu können und weist ebenfalls mehrere Zähne 17 auf.The embodiment according to FIG. 7 contains some simplifications, by doing the bow-balancing movement above all is effected by a tab. It will be in this context only the parts and features that are described differ significantly from the previous examples. The trigger lever 43 of the device 41 is via a bolt 46 hinged to the housing 45 and over the bolt 6 with a Arch compensation tab 36 connected, which in turn over an axis 37 rotatably connected to the feed member 7 which in turn contains the driver 38. The driver is cut out above the tab 36 with some play, to be able to perform a vertical movement and also has a plurality of teeth 17.

    Die Lasche 36 kann an ihrem am Vorschuborgan angelenkten Ende nur eine lineare Bewegung ausführen, während sie mit ihrem anderen Ende mit dem Abzughebel derart verbunden ist, dass sie dort dessen bogenförmige Bewegung ausführen kann, wodurch auch diese Konstruktion eine maximale Volumenausnützung ermöglicht.The tab 36 can be articulated on the feed member Just end up doing a linear motion while using its other end is connected to the trigger lever in such a way that it can perform its arcuate movement there, whereby this construction also makes maximum use of volume enables.

    Im Unterschied zu den vorhergehenden Ausführungsbeispielen weist der Mitnehmer 38 griffseitig einen kleinen Hohlraum 39 auf, in dem eine Druckfeder 40 angeordnet ist, die sich am Schuborgan abstützt. Als Variante ist der Mitnehmerhebel 42 nicht ganz unten sondern etwas oberhalb der Druckfeder angeordnet und greift dort am Mitnehmer an, um diesen für das Zurückziehen der Schubstangen 44 zu entriegeln. Ausserdem ist der Deckel 47 nicht wie gemäss den vorhergehenden Ausführungen oben angeordnet, sondern kartuschenseitig angeschraubt, wodurch die sonst auf das Gehäuse und den Deckel wirkenden Schubkräfte nicht von Schrauben aufgenommen werden müssen und der Zusammenbau noch mehr erleichtert wird.In contrast to the previous exemplary embodiments the driver 38 has a small cavity on the handle side 39 on, in which a compression spring 40 is arranged, which supported on the thrust member. The driving lever is a variant 42 not at the very bottom but slightly above the compression spring arranged and attacks there on the driver to this for to retract the push rods 44 to unlock. Moreover the cover 47 is not as in the previous ones Versions arranged at the top, but screwed on the cartridge side, whereby the otherwise on the housing and the cover acting thrust forces are not absorbed by screws must be made and the assembly even easier becomes.

    An den Geräten ist zusätzlich, siehe Figur 2, eine auf die Schubstange wirkende Reibungsbremse 26 angeordnet, die in der EP-B-0 252 401 des gleichen Anmelders eingehend beschrieben ist und die ein Nachfassen durch Ueberwindung der Mitnahmekräfte zwischen Schubstange und Mitnehmer nach dem Austraghub ermöglicht.On the devices is also, see Figure 2, one on the Push rod acting friction brake 26 arranged in EP-B-0 252 401 by the same applicant and which is a follow-up by overcoming the Driving forces between the push rod and driver after the Discharge stroke enables.

    Aus der Beschreibung und der Zeichnung geht hervor, dass das Gerät aus wenigen kostengünstigen Einzelteilen besteht, die sehr leicht zusammengesetzt werden können. Dabei ist es wesentlich, dass sämtliche für den Antrieb wichtigen Teile in das Gehäuseunterteil eingelegt und durch Aufsetzen und Verschrauben oder Klemmen des Gehäusedeckels oder sein Einschieben in die Gehäuse-Nuten gesichert werden können. Die grosse Auflagefläche zwischen den Zähnen am Mitnehmer und der Verzahnung ermöglichen eine wesentliche Herabsetzung des spezifischen Anpressdruckes und somit die Verwendung von preisgünstigen Kunststoffen. Ferner ermöglicht die kleine Zahnteilung ein schnelles Nachfassen durch den Abzughebel und ergibt einen sehr kleinen Totweg desselben.From the description and the drawing it appears that the device consists of a few inexpensive individual parts, that can be put together very easily. It is essential that all parts important for the drive inserted into the lower part of the housing and by placing and Screwing or clamping the housing cover or pushing it in can be secured in the housing grooves. The large contact surface between the teeth on the driver and the teeth enable a significant reduction the specific contact pressure and thus the use of inexpensive plastics. Furthermore, the small tooth pitch a quick follow-up by the trigger and results in a very small dead path of the same.

    Ausserdem ermöglicht die Konstruktion des Abzughebels im Bereich der Achsen ein grösseres Volumen bei gleicher Baulänge im Vergleich mit den vorbekannten Ausführungen und damit seine Herstellung aus kostengünstigem Kunststoff anstatt aus Metall.In addition, the construction of the trigger in the Area of the axes a larger volume with the same overall length in comparison with the previously known designs and hence its manufacture from inexpensive plastic instead made of metal.

    Claims (11)

    1. A manually operated dispensing device for a double dispensing cartridge for two-component products, comprising a double thrust ram (4, 44) and an advance drive jointly acting on the double thrust ram and being actuated by a trigger lever (3), whereby the advance drive comprises a thrust member (7) which acts on the double thrust ram (4, 44) via a toothing (18) of the latter, characterised in that the teeth of the toothing (18) on the double thrust ram (4, 44) are directed towards the free end of the handle (2) of the device and in that the thrust member (7) comprises a driving dog (16, 23, 38) under the action of a spring and having several teeth (17, 24) and acting on the toothing (18) present on the double thrust ram (4, 44) in a sense substantially perpendicular to the direction of dispensing and in that the thrust member substantially acts only in the direction of the double thrust ram, resp. the direction of dispensing.
    2. A dispensing device according to claim 1, characterised in that the driving dog (16, 38) is formed as hollow body or comprises a cavity (39) in which a pressure spring (19, 40) is located and connected to a lever (20, 42) traversing the housing (5, 45).
    3. A dispensing device according to claim 1 or 2, characterised in that the trigger lever (43) is articulated to the thrust member (7) by means of a arc-compensating element (36) which is guided substantially parallel to the double thrust ram (44).
    4. A dispensing device according to claim 1 or 2, characterised in that the trigger lever (3, 33) is articulated to the thrust member (7) by means of a bolt (6) and co-operates with at least one arc compensating element (14, 35) which is slidingly guided substantially perpendicular to the double thrust ram (4)
    5. A dispensing device according to claim 3, characterised in that the arc compensating element is formed as a joint bar (36) which at one end is articulated to the thrust member (7) by means of an axle (13) and guided linearly and which on its other end is connected by a bolt (6) to the trigger lever (43) in such a way that there it follows its arc-like movement.
    6. A dispensing device according to claim 4, characterised in that the arc compensating element comprises two sliding blocks (14) which are articulated to the trigger lever (3) by an axle (13) and are slidingly guided within compartments 15) in the housing (5).
    7. A dispensing device according to claim 4, characterised in that the rotational axis of the trigger lever (33) is a semicircular body (35) serving as arc compensating element and embracing a corresponding recess (34) in the trigger lever (33).
    8. A dispensing device according to one of the claims 1 to 7, characterised in that two pullback springs (21, 22) supported on the housing (5) act unto the thrust member (7).
    9. A dispensing device according to one of the claims 1 to 8, characterised in that the housing (5, 45) with the handle (2) and the cover (12, 47), the double thrust ram (4, 44), the driving dog (16, 23, 38) and the thrust member (7) as well as the trigger lever (3, 33, 43) are made from synthetic material.
    10. A dispensing device according to one of the claims 1 to 9, characterised in that all pieces (3, 33, 43; 4, 44; 16, 23, 38; 14, 35, 36) necessary for the actuating mechanism are lodged in the lower part (5, 45) of the housing and held by a secured cover (12, 47).
    11. A dispensing device according to one of the claims 1 to 10, characterised in that it comprises a friction brake (26) acting upon the double thrust ram (4, 44).
    EP94810108A 1993-03-17 1994-02-22 Manual dispensing device for double cartridge Expired - Lifetime EP0615787B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    CH80393 1993-03-17
    CH803/93 1993-03-17

    Publications (2)

    Publication Number Publication Date
    EP0615787A1 EP0615787A1 (en) 1994-09-21
    EP0615787B1 true EP0615787B1 (en) 1998-12-16

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    ID=4195555

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP94810108A Expired - Lifetime EP0615787B1 (en) 1993-03-17 1994-02-22 Manual dispensing device for double cartridge

    Country Status (4)

    Country Link
    US (1) US5464131A (en)
    EP (1) EP0615787B1 (en)
    JP (1) JPH07896A (en)
    DE (1) DE59407465D1 (en)

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    Also Published As

    Publication number Publication date
    JPH07896A (en) 1995-01-06
    EP0615787A1 (en) 1994-09-21
    DE59407465D1 (en) 1999-01-28
    US5464131A (en) 1995-11-07

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