EP0094033B1 - Container for plastics masses - Google Patents

Container for plastics masses Download PDF

Info

Publication number
EP0094033B1
EP0094033B1 EP83104403A EP83104403A EP0094033B1 EP 0094033 B1 EP0094033 B1 EP 0094033B1 EP 83104403 A EP83104403 A EP 83104403A EP 83104403 A EP83104403 A EP 83104403A EP 0094033 B1 EP0094033 B1 EP 0094033B1
Authority
EP
European Patent Office
Prior art keywords
sealing ring
piston
sleeve
container
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83104403A
Other languages
German (de)
French (fr)
Other versions
EP0094033A2 (en
EP0094033A3 (en
Inventor
Armin Hoffmann
Armin Herb
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.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Priority to AT83104403T priority Critical patent/ATE22866T1/en
Publication of EP0094033A2 publication Critical patent/EP0094033A2/en
Publication of EP0094033A3 publication Critical patent/EP0094033A3/en
Application granted granted Critical
Publication of EP0094033B1 publication Critical patent/EP0094033B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container

Definitions

  • the invention relates to a container for plastic adhesives, fillers, sealants or fillers, with an essentially cylindrical sleeve, a dispensing opening at one end of the sleeve and an ejection piston which is axially displaceably mounted within the sleeve, as described e.g. is known from US-A-2 649 999.
  • plastic single or multi-component materials are used for different purposes.
  • the masses In order to avoid premature curing of the masses, the masses usually have to be stored in an air-tight environment. As a rule, this is done by packing the masses in sleeve-shaped containers with an ejection piston mounted axially displaceably therein.
  • the outer diameter of the ejector piston is usually matched to the inside diameter of the sleeve-shaped container.
  • the excess of the squeezing piston is very small compared to the sleeve-shaped container.
  • the invention is therefore based on the object of improving the sealing of the squeeze-out piston in the container in order to improve the storage of plastic masses, without the displacement resistance of the squeeze-out piston being significantly increased.
  • this is achieved in that a sealing ring which is at least detachable with respect to the squeezing piston is provided between the squeezing piston and the sleeve to close the sleeve end opposite the dispensing opening.
  • the sealing ring is thus inserted between the squeezing piston and the sleeve wall, at least remaining detachable relative to the squeezing piston.
  • the sealing ring therefore has no influence on the displacement resistance of the ejection piston.
  • the sealing ring thus acts as a static seal during storage of the container.
  • the sealing ring can remain in the container and can only be separated from it by pushing the ejection piston forward.
  • a certain resistance may occur at the beginning of the squeezing process, which must first be overcome.
  • the sealing ring it is expedient for the sealing ring to be arranged releasably with respect to the squeezing piston and the sleeve. This means that the sealing ring can be removed from the container before the pressing process begins.
  • the displacement resistance of the squeezing piston thus remains constant during the entire squeezing process.
  • the sealing ring can be designed as desired.
  • the sealing ring can adapt, for example, in the manner of an O-ring in a recess provided for this purpose.
  • An advantageous embodiment of the sealing ring is that the cross section of the sealing ring decreases in the squeezing direction. With this cross-sectional shape, the sealing ring can be pressed like a wedge between the squeezing piston and the sleeve wall. The wall of the sleeve is pressed outwards and the ejection piston is pressed inwards.
  • a simple design of the press-out piston and the sleeve as well as the sealing ring itself is achieved if, in a further development of the invention, the sealing ring tapers conically on its outside in the pressing-out direction.
  • the outer side of the sealing ring which tapers in the pressing direction, makes it easier to insert the sealing ring between the pressing piston and the sleeve wall.
  • the sleeve wall is pressed radially outwards.
  • the sealing surface between the sealing ring and the sleeve is thus conical, which gives a good sealing effect.
  • the sealing surface between the sealing ring and the squeezing piston can also be conical or cylindrical.
  • the sealing ring is inserted between the sleeve and the squeezing piston. So that the sealing ring is always pushed in to the same extent, it is advantageous that a stop shoulder is provided on the sleeve for the discharge-side end face of the sealing ring. In addition to the limitation when pressing in the sealing ring, the stop shoulder can also perform another task. This consists in that the sealing ring is retained by the stop shoulder when the ejection piston is pushed forward. The sealing ring is thus simply pushed forward by the ejection piston separated from this.
  • the sealing ring can remain in the container and be separated from it only by pushing the ejection piston forward.
  • the initial displacement resistance of the ejection piston can be high.
  • the sealing ring it is expedient for the sealing ring to have a tab which serves to remove the sealing ring.
  • the tab can be integrally formed with the sealing ring or connected to it by gluing or pouring. The sealing ring is removed by pulling the tab. If necessary, the sealing ring can also have several tabs.
  • the sealing ring In order to facilitate the removal of the sealing ring, it can also be formed in one piece with a cover-shaped protective cap.
  • the sealing ring is thus removed together with the protective cap before the pressing process begins.
  • a protective cap in particular prevents dirt from penetrating into the mostly hollow ejection piston.
  • an unintentional displacement of the squeezing piston is prevented by a protective cap.
  • the container shown in Fig. 1 consists of a sleeve, generally designated 1, in which an ejection piston 2 is axially displaceably mounted.
  • the sleeve 1 has a discharge opening 1a at a sleeve end.
  • the discharge opening 1a is closed by a destructible membrane 1b.
  • a thread 1c arranged at the discharge opening 1aa serves to screw on a discharge nozzle.
  • a mass 3 to be dispensed is arranged in the cavity formed by the sleeve 1 and the squeezing piston 2. Before the start of the dispensing process, the membrane 1b is destroyed.
  • the sleeve end opposite the discharge opening 1 a is closed by the ejection piston 2.
  • a sealing ring 4 is inserted between the squeezing piston 2 and the sleeve 1.
  • the sealing ring 4 is conically tapered on the outside in the pressing direction. With this design, the sleeve wall is pressed radially outwards. The sealing ring 4 lies against a stop shoulder 1d of the sleeve 1. When the ejection piston 2 is pushed forward, the sealing ring 4 is retained by the stop shoulder 1d. The displacement resistance of the squeezing piston 2 is thus influenced by the sealing ring 4 only at the beginning of the squeezing process.
  • FIG. 2 of a sealing ring denoted overall by 5 shows a tab 5a connected to the sealing ring 5.
  • the sealing ring 5 can thus be removed simply by pulling on the tab 5a.
  • the displacement resistance of the squeeze-out piston 2 remains constant from the start in the sleeve designated overall by 1.
  • the sealing ring 5 is also pressed until it comes up against a stop shoulder 1 d of the sleeve 1 between the squeezing piston 2 and the sleeve 1.
  • the end of the sleeve 1 opposite the discharge opening is additionally closed by a protective cap, designated overall by 6.
  • the protective cap 6 is connected in one piece to a sealing ring 6a. When the protective cap 6 is removed, the sealing ring 6a is thus also removed.
  • the protective cap 6 also forms a mechanical protection of the container. This prevents dirt from penetrating into the hollow squeezing piston 2.
  • the protective cap 6 also prevents the pressing-out piston 2 from being moved unintentionally.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A container for a plastic substance includes an axially elongated sleeve defining a hollow space for holding the substance. An extrusion piston is slidably displaceable through the hollow space for extruding the substance out of a discharge outlet. The piston forms a closure for the hollow space. Before the substance is extruded from the sleeve, a sealing ring, inserted between the inside surface of the sleeve and the piston, prevents the penetration of air into the hollow space, and the loss of gases formed by the evaporation of solvents out of the hollow space.

Description

Die Erfindung betrifft einen Behälter für plastische Klebe-, Füll-, Dicht- oder Spachtelmassen, mit einer im wesentlichen zylindrischen Hülse, einer Abgabeöffnung am einen Hülsenende sowie einem innerhalb der Hülse axial verschiebbar gelagerten Auspresskolben, wie er z.B. aus der US-A-2 649 999 bekannt ist.The invention relates to a container for plastic adhesives, fillers, sealants or fillers, with an essentially cylindrical sleeve, a dispensing opening at one end of the sleeve and an ejection piston which is axially displaceably mounted within the sleeve, as described e.g. is known from US-A-2 649 999.

Hauptsächlich im Baugewerbe, jedoch auch in anderen Industriezweigen, werden für unterschiedliche Zwecke plastische Ein- oder Mehrkomponentenmassen verwendet. Um ein vorzeitiges Aushärten der Massen zu vermeiden, müssen die Massen meistens unter Luftabschluss gelagert werden. Dies erfolgt in der Regel dadurch, dass die Massen in hülsenförmige Behälter mit einem darin axial verschiebbar gelagerten Auspresskolben verpackt werden. Der Auspresskolben ist dabei in seinem Aussendurchmesser meistens mit Uebermass auf den Innendurchmesser des hülsenförmigen Behälters abgestimmt. Um den Verschiebewiderstand des Auspresskolbens im hülsenformigen Behälter in Grenzen zu halten, ist das Uebermass des Auspresskolbens gegenüber dem hülsenförmigen Behälter sehr gering. Dieses Uebermass verhindert, dass die festen Bestandteile der plastischen Masse aus dem Behälter entweichen können. Andererseits ist es jedoch möglich, dass Luft in den Behälter eindringt und auf die plastische Masse einwirkt. Somit kann ein Teil der plastischen Masse bereits während der Lagerung im Behälter aushärten. Durch die ganz oder teilweise ausgehärtete Masse wird jedoch der Abgabevorgang behindert. Weiterhin ist es möglich, dass die in der Masse enthaltenen Lösungsmittel unter Entwicklung eines erheblichen Gasdruckes verdampfen. Bei Entweichen dieser Gase oder Dämpfe kann die Masse ebenfalls unbrauchbar werden.Mainly in the construction industry, but also in other branches of industry, plastic single or multi-component materials are used for different purposes. In order to avoid premature curing of the masses, the masses usually have to be stored in an air-tight environment. As a rule, this is done by packing the masses in sleeve-shaped containers with an ejection piston mounted axially displaceably therein. The outer diameter of the ejector piston is usually matched to the inside diameter of the sleeve-shaped container. In order to keep the displacement resistance of the squeezing piston in the sleeve-shaped container within limits, the excess of the squeezing piston is very small compared to the sleeve-shaped container. This excess prevents the solid components of the plastic mass from escaping from the container. On the other hand, however, it is possible for air to enter the container and act on the plastic mass. This means that part of the plastic mass can harden during storage in the container. However, the dispensing process is hindered by the fully or partially hardened mass. It is also possible for the solvents contained in the composition to evaporate with the development of a considerable gas pressure. If these gases or vapors escape, the mass can also become unusable.

Bekannte Massnahmen, welche das Eindringen von Luft bzw das Entweihen von Gasen oder Dämpfen verhindern sollen, wie beispielsweise das Anbringen einer Dichtungsmasse (z.B. DE-A-2719 594) oder eine zusätzliche Schutzkappe, haben sich als zu aufwendig oder unwirksam erwiesen.Known measures which are intended to prevent the ingress of air or the desecration of gases or vapors, such as the application of a sealing compound (e.g. DE-A-2719 594) or an additional protective cap, have proven to be too complex or ineffective.

Der Erfindung liegt daher die Aufgabe zugrunde, zur Verbesserung der Lagerhaltung von plastischen Massen die Abdichtung des Auspresskolbens im Behälter zu verbessern, ohne dass dabei der Verschiebewiderstand des Auspresskolbens wesentlich erhöht wird.The invention is therefore based on the object of improving the sealing of the squeeze-out piston in the container in order to improve the storage of plastic masses, without the displacement resistance of the squeeze-out piston being significantly increased.

Gemäss der Erfindung wird dies dadurch erreicht, dass zum Verschluss des der Abgabeöffnung entgegengesetzten Hülsenendes zwischen dem Auspresskolben und der Hülse ein wenigstens gegenüber dem Auspresskolben lösbarer Dichtring vorgesehen ist.According to the invention, this is achieved in that a sealing ring which is at least detachable with respect to the squeezing piston is provided between the squeezing piston and the sleeve to close the sleeve end opposite the dispensing opening.

Der Dichtring wird somit zwischen den Auspresskolben und die Hülsenwandung eingeschoben, wobei er wenigstens gegenüber dem Auspresskolben lösbar bleibt. Beim Vorschieben des Auspresskolbens wird dieser somit vom Dichtring getrennt. Der Dichtring hat dadurch auf den Verschiebewiderstand des Auspresskolbens keinen Einfluss. Der Dichtring wirkt somit als statische Abdichtung während der Lagerung des Behälters.The sealing ring is thus inserted between the squeezing piston and the sleeve wall, at least remaining detachable relative to the squeezing piston. When the ejection piston is pushed forward, it is separated from the sealing ring. The sealing ring therefore has no influence on the displacement resistance of the ejection piston. The sealing ring thus acts as a static seal during storage of the container.

Der Dichtring kann im Behälter verbleiben und lediglich durch das Vorschieben des Auspresskolbens von diesem getrennt werden. Für die Trennung des Auspresskolbens vom Dichtring kann jedoch zu Beginn des Auspressvorganges ein gewisser Widerstand auftreten, der zuerst überwunden werden muss. Um unter diesem Gesichtspunkt die Handhabung weiter zu verbessern ist es zweckmässig, dass der Dichtring gegenüber dem Auspresskolben und der Hülse lösbar angeordnet ist. Damit kann der Dichtring vor Beginn des Auspressvorganges aus dem Behälter entfernt werden. Der Verschiebewiderstand des Auspresskolbens bleibt somit während des gesamten Auspressvorganges konstant.The sealing ring can remain in the container and can only be separated from it by pushing the ejection piston forward. For the separation of the squeezing piston from the sealing ring, however, a certain resistance may occur at the beginning of the squeezing process, which must first be overcome. In order to further improve handling from this point of view, it is expedient for the sealing ring to be arranged releasably with respect to the squeezing piston and the sleeve. This means that the sealing ring can be removed from the container before the pressing process begins. The displacement resistance of the squeezing piston thus remains constant during the entire squeezing process.

Der Dichtring kann im Prinzip beliebig ausgebildet werden. Bei entsprechender Materialwahl kann sich der Dichtring beispielsweise nach Art eines 0-Ringes in einer dafür vorgesehenen Ausnehmung anpassen. Eine vorteilhafte Ausbildung des Dichtringes besteht darin, dass der Querschnitt des Dichtringes in Auspressrichtung abnimmt. Bei dieser Querschnittsform kann der Dichtring nach Art eines Keiles zwischen den Auspresskolben und die Hülsenwandung eingepresst werden. Dabei wird die Wandung der Hülse nach aussen und der Auspresskolben nach innen gedrückt.In principle, the sealing ring can be designed as desired. With a suitable choice of material, the sealing ring can adapt, for example, in the manner of an O-ring in a recess provided for this purpose. An advantageous embodiment of the sealing ring is that the cross section of the sealing ring decreases in the squeezing direction. With this cross-sectional shape, the sealing ring can be pressed like a wedge between the squeezing piston and the sleeve wall. The wall of the sleeve is pressed outwards and the ejection piston is pressed inwards.

Eine einfache Ausbildung des Auspresskolbens und der Hülse sowie des Dichtringes selbst wird erzielt, wenn in Weiterbildung der Erfindung sich der Dichtring an seiner Aussenseite in Auspressrichtung konisch verjüngt. Durch die sich in Auspressrichtung verjüngende Aussenseite des Dichtringes wird das Einführen des Dichtringes zwischen den Auspresskolben und die Hülsenwandung erleichtert. Die Hülsenwandung wird dabei radial nach aussen gedrückt. Die Dichtfläche zwischen dem Dichtring und der Hülse ist somit konisch, was eine gute Abdichtwirkung ergibt. Die Dichtfläche zwischen dem Dichtring und dem Auspresskolben kann ebenfalls konisch oder zylindrisch ausgebildet sein.A simple design of the press-out piston and the sleeve as well as the sealing ring itself is achieved if, in a further development of the invention, the sealing ring tapers conically on its outside in the pressing-out direction. The outer side of the sealing ring, which tapers in the pressing direction, makes it easier to insert the sealing ring between the pressing piston and the sleeve wall. The sleeve wall is pressed radially outwards. The sealing surface between the sealing ring and the sleeve is thus conical, which gives a good sealing effect. The sealing surface between the sealing ring and the squeezing piston can also be conical or cylindrical.

Der Dichtring wird zwischen die Hülse und den Auspresskolben eingeschoben. Damit der Dichtring immer gleich weit eingeschoben wird, ist es vorteilhaft, dass für das abgabeseitige Stirnende des Dichtringes an der Hülse eine Anschlagschulter vorgesehen ist. Neben der Begrenzung beim Einpressen des Dichtringes kann die Anschlagschulter noch eine weitere Aufgabe ausüben. Diese besteht darin, dass der Dichtring beim Vorschieben des Auspresskolbens durch die Anschlagschulter zurückgehalten wird. Somit wird durch einfaches Vorschieben des Auspresskolbens der Dichtring von diesem getrennt.The sealing ring is inserted between the sleeve and the squeezing piston. So that the sealing ring is always pushed in to the same extent, it is advantageous that a stop shoulder is provided on the sleeve for the discharge-side end face of the sealing ring. In addition to the limitation when pressing in the sealing ring, the stop shoulder can also perform another task. This consists in that the sealing ring is retained by the stop shoulder when the ejection piston is pushed forward. The sealing ring is thus simply pushed forward by the ejection piston separated from this.

Der Dichtring kann im Behälter verbleiben und allein durch das Vorschieben des Auspresskolbens von diesem getrennt werden. Wie bereits erwähnt, kann dabei der Anfangsverschiebewiderstand des Auspresskolbens hoch sein. Andererseits ist es schwierig, den zwischen dem Auspresskolben und der Hülse angeordneten Dichtring zu entfernen, ohne dabei den Auspresskolben oder die Hülse zu beschädigen. Um das Entfernen des Dichtringes zu erleichtern, ist es zweckmässig, dass der Dichtring eine dem Entfernen des Dichtringes dienende Lasche aufweist. Die Lasche kann mit dem Dichtring einstückig ausgebildet oder durch Kleben bzw Eingiessen damit verbunden sein. Der Dichtring wird dabei durch Ziehen an der Lasche entfernt. Erforderlichenfalls kann der Dichtring auch mehrere Laschen aufweisen.The sealing ring can remain in the container and be separated from it only by pushing the ejection piston forward. As already mentioned, the initial displacement resistance of the ejection piston can be high. On the other hand, it is difficult to remove the sealing ring arranged between the ejection piston and the sleeve without damaging the ejection piston or the sleeve. In order to facilitate the removal of the sealing ring, it is expedient for the sealing ring to have a tab which serves to remove the sealing ring. The tab can be integrally formed with the sealing ring or connected to it by gluing or pouring. The sealing ring is removed by pulling the tab. If necessary, the sealing ring can also have several tabs.

Um das Entfernen des Dichtringes zu erleichtern, kann dieser auch einstückig mit einer deckelförmigen Schutzkappe ausgebildet sein. Der Dichtring wird somit zusammen mit der Schutzkappe vor Beginn des Auspressvorganges entfernt. Eine Schutzkappe verhindert insbesondere das Eindringen von Schmutz in den zumeist hohl ausgebildeten Auspresskolben. Ausserdem wird durch eine Schutzkappe ein nicht beabsichtigtes Verschieben des Auspresskolbens verhindert.In order to facilitate the removal of the sealing ring, it can also be formed in one piece with a cover-shaped protective cap. The sealing ring is thus removed together with the protective cap before the pressing process begins. A protective cap in particular prevents dirt from penetrating into the mostly hollow ejection piston. In addition, an unintentional displacement of the squeezing piston is prevented by a protective cap.

Die Erfindung soll nachstehend anhand der sie beispielsweise wiedergebenden Zeichnungen näher erläutert werden. Es zeigen:

  • Fig. 1 eine erste Ausführung eines erfindungsgemässen Behälters, im Schnitt dargestellt,
  • Fig. 2 einen Ausschnitt einer weiteren Ausführungsform eines erfindungsgemässen Behälters,
  • Fig. 3 einen weiteren Ausschnitt eines erfindungsgemässen Behälters.
The invention will be explained in more detail below with reference to the drawings, for example. Show it:
  • 1 shows a first embodiment of a container according to the invention, shown in section,
  • 2 shows a detail of a further embodiment of a container according to the invention,
  • Fig. 3 shows a further section of a container according to the invention.

Der aus Fig. 1 ersichtliche Behälter besteht aus einer insgesamt mit 1 bezeichneten Hülse, in der ein Auspresskolben 2 axial verschiebbar gelagert ist. Die Hülse 1 weist an einem Hülsenende eine Abgabeöffnung 1a auf. Die Abgabeöffnung 1a wird durch eine zerstörbare Membran 1b verschlossen. Ein an der Abgabeöffnung 1a a angeordnetes Gewinde 1c dient dem Aufschrauben einer Abgabedüse. In dem durch die Hülse 1 und den Auspresskolben 2 gebildeten Hohlraum ist eine abzugebende Masse 3 angeordnet. Vor Beginn des Abgabevorganges wird die Membran 1b zerstört. Das der Abgabeöffnung 1a entgegengesetzte Hülsenende wird durch den Auspresskolben 2 verschlossen. Zwischen dem Auspresskolben 2 und der Hülse 1 ist ein Dichtring 4 eingesetzt. Der Dichtring 4 ist an seiner Aussenseite in Auspressrichtung konisch verjüngt ausgebildet. Durch diese Ausbildung wird die Hülsenwandung radial nach aussen gepresst. Der Dichtring 4 liegt an einer Anschlagschulter 1d der Hülse 1 an. Beim Vorschieben des Auspresskolbens 2 wird der Dichtring 4 durch die Anschlagschulter 1d zurückgehalten. Der Verschiebewiderstand des Auspresskolbens 2 wird somit durch den Dichtring 4 nur am Anfang des Auspressvorganges beeinflusst.The container shown in Fig. 1 consists of a sleeve, generally designated 1, in which an ejection piston 2 is axially displaceably mounted. The sleeve 1 has a discharge opening 1a at a sleeve end. The discharge opening 1a is closed by a destructible membrane 1b. A thread 1c arranged at the discharge opening 1aa serves to screw on a discharge nozzle. A mass 3 to be dispensed is arranged in the cavity formed by the sleeve 1 and the squeezing piston 2. Before the start of the dispensing process, the membrane 1b is destroyed. The sleeve end opposite the discharge opening 1 a is closed by the ejection piston 2. A sealing ring 4 is inserted between the squeezing piston 2 and the sleeve 1. The sealing ring 4 is conically tapered on the outside in the pressing direction. With this design, the sleeve wall is pressed radially outwards. The sealing ring 4 lies against a stop shoulder 1d of the sleeve 1. When the ejection piston 2 is pushed forward, the sealing ring 4 is retained by the stop shoulder 1d. The displacement resistance of the squeezing piston 2 is thus influenced by the sealing ring 4 only at the beginning of the squeezing process.

Damit der Verschiebewiderstand des Auspresskolbens 2 nicht zu gross wird, ist es vorteilhaft, wenn der Dichtring zu Beginn des Auspressvorganges entfernt wird. Zu diesem Zweck zeigt die in Fig. 2 dargestellte Ausführung eines insgesamt mit 5 bezeichneten Dichtringes eine mit dem Dichtring 5 verbundene Lasche 5a. Der Dichtring 5 kann somit einfach durch Ziehen an der Lasche 5a entfernt werden. Dadurch bleibt der Verschiebewiderstand des Auspresskolbens 2 in der insgesamt mit 1 bezeichneten Hülse von Anfang an konstant. Der Dichtring 5 ist ebenfalls bis zum Auflaufen an einer Anschlagschulter 1 d der Hülse 1 zwischen den Auspresskolben 2 und die Hülse 1 eingepresst.So that the displacement resistance of the squeezing piston 2 does not become too great, it is advantageous if the sealing ring is removed at the beginning of the squeezing process. For this purpose, the embodiment shown in FIG. 2 of a sealing ring denoted overall by 5 shows a tab 5a connected to the sealing ring 5. The sealing ring 5 can thus be removed simply by pulling on the tab 5a. As a result, the displacement resistance of the squeeze-out piston 2 remains constant from the start in the sleeve designated overall by 1. The sealing ring 5 is also pressed until it comes up against a stop shoulder 1 d of the sleeve 1 between the squeezing piston 2 and the sleeve 1.

Bei der in Fig. 3 dargestellten Ausführung wird das der Abgabeöffnung entgegengesetzte Ende der Hülse 1 zusätzlich durch eine insgesamt mit 6 bezeichnete Schutzkappe verschlossen. Die Schutzkappe 6 ist mit einem Dichtring 6a einstückig verbunden. Beim Entfernen der Schutzkappe 6 wird somit auch der Dichtring 6a entfernt. Die Schutzkappe 6 bildet neben der zusätzlichen Abdichtwirkung zwischen dem Auspresskolben 2 und der Hülse 1 durch den Dichtring 6a auch einen mechanischen Schutz des Behälters. So wird vermieden, dass Schmutz in den hohl ausgebildeten Auspresskolben 2 eindringen kann. Auch ein unbeabsichtigtes Verschieben des Auspresskolbens 2 wird durch die Schutzkappe 6 verhindert.In the embodiment shown in FIG. 3, the end of the sleeve 1 opposite the discharge opening is additionally closed by a protective cap, designated overall by 6. The protective cap 6 is connected in one piece to a sealing ring 6a. When the protective cap 6 is removed, the sealing ring 6a is thus also removed. In addition to the additional sealing effect between the squeezing piston 2 and the sleeve 1 by the sealing ring 6a, the protective cap 6 also forms a mechanical protection of the container. This prevents dirt from penetrating into the hollow squeezing piston 2. The protective cap 6 also prevents the pressing-out piston 2 from being moved unintentionally.

Claims (7)

1. A container for plastic adhesive, filling, sealing or priming compositions, with a substantially cylindrical casing (1), a delivery aperture at the one end of the casing as well as an ejector piston (2) which is mounted so as to be axially displaceable inside the casing, characterised in that, for the sealing of that end of the casing which is opposite to the delivery aperture (1a), a sealing ring (4, 5, 6a) which is at least detachable relative to the ejector piston is provided between the ejector piston (2) and the casing (1).
2. A container according to claim 1, characterised in that the sealing ring (4, 5, 6a) is arranged so as to be detachable relative to the ejector piston (2) and the casing (1).
3. A container according to claim 1 or 2, characterised in that the cross-section of the sealing ring (4, 5, 6a) decreases in the ejection direction.
4. A container according to one of claims 1 to 3, characterised in that the sealing ring (4, 5, 6a) narrows conically at its outside in the ejection direction.
5. A container according to one of claims 1 to 4, characterised in that, for the front end of the sealing ring (4, 5, 6a) at the delivery aperture side, a stop shoulder (1d) is provided on the casing (1).
6. A container according to one of claims 1 to 5, characterized in that the sealing ring (5) has a flap (5a) serving for the removal of the sealing ring (5).
7. A container according to one of claims 1 to 6, characterized in that the sealing ring (6a) is formed integrally with a lid-shaped protective cap (6).
EP83104403A 1982-05-06 1983-05-04 Container for plastics masses Expired EP0094033B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104403T ATE22866T1 (en) 1982-05-06 1983-05-04 CONTAINER FOR PLASTIC MASS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3217044 1982-05-06
DE3217044A DE3217044C2 (en) 1982-05-06 1982-05-06 Plastic mass containers

Publications (3)

Publication Number Publication Date
EP0094033A2 EP0094033A2 (en) 1983-11-16
EP0094033A3 EP0094033A3 (en) 1984-11-28
EP0094033B1 true EP0094033B1 (en) 1986-10-15

Family

ID=6162928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104403A Expired EP0094033B1 (en) 1982-05-06 1983-05-04 Container for plastics masses

Country Status (5)

Country Link
US (1) US4522316A (en)
EP (1) EP0094033B1 (en)
JP (1) JPS58203871A (en)
AT (1) ATE22866T1 (en)
DE (1) DE3217044C2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3405547A1 (en) * 1984-02-16 1985-08-14 Hilti Ag, Schaan PRESSING PISTON FOR CONTAINERS
DE3635849C2 (en) * 1986-10-22 1994-03-17 Megaplast Dosiersysteme donor
DE3863896D1 (en) * 1987-10-23 1991-08-29 Gurit Essex Ag DEVICE FOR DOSING AND MIXING AT LEAST TWO REACTION COMPONENTS.
GB8726437D0 (en) * 1987-11-11 1987-12-16 Dow Corning Sealant cartridge
US5139178A (en) * 1987-11-11 1992-08-18 Dow Corning S.A. Sealant cartridge under pressure during storage
DE19710878C1 (en) * 1997-03-15 1998-07-02 Henkel Kgaa Cartridge system with applicator gun
AUPO601297A0 (en) 1997-04-04 1997-05-01 Geartech Pty Ltd Cartridge for holding a supply of a flowable substance
US6343718B1 (en) 1998-10-15 2002-02-05 Loctite Corporation Unit dose dispense package
WO2003089029A1 (en) * 2002-04-20 2003-10-30 Garry Tsaur Patent application of garry tsaur for container
CN1953914B (en) * 2004-05-06 2010-06-16 雷克斯姆分配Smt公司 Closure device for a non-vented liquid product dispenser
US8668119B2 (en) * 2009-09-03 2014-03-11 James Wheeler Container for viscous comestibles
US20150284171A1 (en) * 2014-04-03 2015-10-08 Fres-Co System Usa, Inc. Hand-held system for dispensing viscous materials from a flexible pouch and methods of accomplishing the same
CN105668035A (en) * 2016-02-03 2016-06-15 黄延庆 Glass cement bottle with high sealing performance

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE449786C (en) * 1925-11-29 1927-09-21 Paul Baer Refillable permanent tube
FR800607A (en) * 1935-02-27 1936-07-15 Improvements to piston dispensing containers
US2649999A (en) * 1952-01-28 1953-08-25 Donald J Burch Caulking compound tube
US2855130A (en) * 1957-10-28 1958-10-07 Battenfeld Grease Oil Combined cap and extruding plunger for caulking compound cartridge
US3272401A (en) * 1964-12-23 1966-09-13 Robert H Fendler Viscous fluid extrusion apparatus
CH465157A (en) * 1967-08-15 1968-11-15 Pollak Josua Container for automatic dispensing of liquid or pasty substances
US3527389A (en) * 1968-10-25 1970-09-08 Dow Chemical Co Caulking cartridge with silicone fluid seal
US3880331A (en) * 1971-04-06 1975-04-29 Spotnails Dispensing tool and cartridge for viscous materials
DE2217071A1 (en) * 1972-04-08 1974-01-24 Hagen Perennatorwerk DEVICE FOR EXPRESSING VISCOSE MASSES, IN PARTICULAR PASTS, SUCH AS ADHESIVE, SEALANT AND THE LIKE. FROM PACKAGING CONTAINERS
DE2302275A1 (en) * 1973-01-18 1974-08-01 Schieferdecker Kg CARTRIDGE
US3815791A (en) * 1973-04-26 1974-06-11 Cantop Inc Hermetically sealed tube for containing and dispensing viscous materials
JPS5223827B2 (en) * 1973-12-20 1977-06-27
US3884396A (en) * 1974-07-29 1975-05-20 Int Paper Co Cartridge type dispenser with resilient slitted outlet valve
JPS5223827U (en) * 1975-08-08 1977-02-19
US4217995A (en) * 1975-10-06 1980-08-19 General Electric Company Caulking tube with an improved seal to retard the passage of air
DE2719594A1 (en) * 1977-05-02 1978-11-09 Voplex Corp Sealing piston for cylindrical capsule - includes beaker shaped body formed from resin and sealing material made from softer resin

Also Published As

Publication number Publication date
JPH0459225B2 (en) 1992-09-21
EP0094033A2 (en) 1983-11-16
DE3217044C2 (en) 1994-03-03
DE3217044A1 (en) 1983-11-10
ATE22866T1 (en) 1986-11-15
JPS58203871A (en) 1983-11-28
EP0094033A3 (en) 1984-11-28
US4522316A (en) 1985-06-11

Similar Documents

Publication Publication Date Title
DE60017513T2 (en) Spritzenendstückkappe
EP0094033B1 (en) Container for plastics masses
DE69004824T2 (en) Capsule.
EP0645122B1 (en) Syringe for dosing viscous substances, in particular for dental substances
DE69223967T2 (en) Adapter for dispensing a product contained in a film sock
EP0663348B1 (en) Device for emptying a tubular bag
EP0245210B1 (en) Press-out piston having a storage chamber
EP0645124B1 (en) Syringe for dosing viscous substances, in particular for dental substances
DD158384A5 (en) DUESE AND CLOSURE FOR A CONTAINER CONTAINING A HAZARDOUS MASS
CH671204A5 (en)
EP3395274A1 (en) Bone cement application device with closure means at the output piston
EP3403716A1 (en) Bone cement applicator with hollow cylinder at the application piston
EP3584005A1 (en) Bone cement applicator with retractable mixing rod and method for producing a bone cement
DE60220017T2 (en) CONTAINER, CAP AND METHOD FOR CLOSING AN NOZZLE TIP OF A DISPENSABLE TANK FOR HARDENABLE LIQUID
EP3505237A1 (en) Bone cement mixing apparatus and method with spacer in an ampoule holder
EP3584004A1 (en) Bone cement applicator with retractable mixing rod and method for producing a bone cement
DE202016008820U1 (en) System for filling a cartridge with a flowable component
EP1212984A1 (en) Seringue for proportioning dispense dental products
DE2302364B2 (en) Closure made of elastic material serving as a push-out piston for plastic mass for a hollow cylindrical extrusion container
DE10117385A1 (en) Syringe-type device for supplying dental material, has activation component that partially blocks and allows flow of dental material from syringe to connecting structure, in non-actuated state and actuated state, respectively
EP0414084A2 (en) Device for spraying of a dental moulding material
EP0103746A2 (en) Dispensing device in the shape of a stick
DE19750090B4 (en) Cannula for a Luer or Luer lock connection
EP1029513B1 (en) Mixing and discharging capsule
DE29818743U1 (en) Device for determining the viscosity of a bone cement

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH FR GB LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH FR GB LI SE

17P Request for examination filed

Effective date: 19850124

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH FR GB LI SE

REF Corresponds to:

Ref document number: 22866

Country of ref document: AT

Date of ref document: 19861115

Kind code of ref document: T

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

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 83104403.7

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

Ref country code: SE

Payment date: 19950418

Year of fee payment: 13

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

Ref country code: GB

Payment date: 19950424

Year of fee payment: 13

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

Ref country code: AT

Payment date: 19950522

Year of fee payment: 13

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

Ref country code: GB

Effective date: 19960504

Ref country code: AT

Effective date: 19960504

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

Ref country code: SE

Effective date: 19960505

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960504

EUG Se: european patent has lapsed

Ref document number: 83104403.7

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

Ref country code: FR

Payment date: 19980316

Year of fee payment: 16

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

Ref country code: CH

Payment date: 19980409

Year of fee payment: 16

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST