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EP0581128B1 - Spray container - Google Patents

Spray container Download PDF

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Publication number
EP0581128B1
EP0581128B1 EP93111353A EP93111353A EP0581128B1 EP 0581128 B1 EP0581128 B1 EP 0581128B1 EP 93111353 A EP93111353 A EP 93111353A EP 93111353 A EP93111353 A EP 93111353A EP 0581128 B1 EP0581128 B1 EP 0581128B1
Authority
EP
European Patent Office
Prior art keywords
container
connecting sleeve
gun nozzle
tubular piece
projects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93111353A
Other languages
German (de)
French (fr)
Other versions
EP0581128A2 (en
EP0581128A3 (en
Inventor
Ulrich Dipl.-Ing. Saier (Fh)
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.)
Gfv Verschlusstechnik & Co GmbH
Original Assignee
Gfv Verschlusstechnik & Co GmbH
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 Gfv Verschlusstechnik & Co GmbH filed Critical Gfv Verschlusstechnik & Co GmbH
Publication of EP0581128A2 publication Critical patent/EP0581128A2/en
Publication of EP0581128A3 publication Critical patent/EP0581128A3/en
Application granted granted Critical
Publication of EP0581128B1 publication Critical patent/EP0581128B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00513—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the thread type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • 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
    • B05C17/00583—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 the container for the material to be dispensed being deformable
    • 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
    • B05C17/00596—The liquid or other fluent material being supplied from a rigid removable cartridge having no active dispensing means, i.e. the cartridge requiring cooperation with means of the handtool to expel the material
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/38—Devices for discharging contents
    • B65D25/40—Nozzles or spouts
    • B65D25/48—Separable nozzles or spouts
    • 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
    • B65D83/76—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston

Definitions

  • the invention relates to a spray container according to the preamble of claim 1.
  • Spray containers of this type are used, for example, to dispense a plastic sealing compound, such as is used for example for elastic joint seals, through the nozzle.
  • a plastic sealing compound such as is used for example for elastic joint seals
  • known spray containers remain after the plastic has been used up Sealant is a residual amount of this material because it cannot be completely dispensed from the container. This can be disadvantageous if the mass remaining in the container makes it difficult to reuse the container material, which is generally made of plastic, and / or if this mass should not be thrown away when the emptied container is thrown away for environmental reasons.
  • EP-A-0 039 245 already shows such a spray container, in which the spray nozzle projects with a piece of pipe into the connecting piece, the diameters of the parts being matched to one another.
  • the free end of the pipe section is provided with thorn-like projections in order to penetrate a membrane which seals the spray container when the spray nozzle is inserted.
  • the spray nozzle with the pipe piece must be pushed into the container and consequently protrudes into the interior of the container.
  • the piston hits the protruding pipe section, so that plastic mass must inevitably remain in the container and complete emptying into the nozzle is not possible.
  • a pushing of the piston up to the inner end face of the spray container is also prevented by the remaining parts of the membrane and, above all, the attachment approaches thereof in the spray container.
  • the invention has for its object to provide a way by which it can be prevented that considerable amounts of the plastic content of the container remain in the area of the connecting piece of the container.
  • the advantage of the invention is that the remaining plastic material that cannot be discharged from the container in the area of its connecting piece is inside the tube and remains in the tube remaining on the spray nozzle when the spray nozzle is removed from the container.
  • the removed spray nozzle can either be recycled by returning it to the manufacturer, or, if the work to be carried out has not yet been completed, the spray nozzle removed from one container is placed directly on another container, so that the remaining in the pipe section and material that has not yet hardened or has otherwise become unusable can be used immediately. If the contents of a large number of spray containers are thus processed with one and the same spray nozzle, only the content of a single spray nozzle remains as unsustainable remainder; namely, the contents of the spray nozzle cannot be removed from the user in general.
  • the container and the nozzle are advantageously made of plastic.
  • the free end of the connecting piece of the container is generally closed by a cover which is integrally molded onto the connecting piece and which has to be removed before use. So that this can be done easily and securely with a knife, in one embodiment of the invention an at least partially annular groove extending along the circumference of the connecting piece, or a ring switch is provided, which forms a guide for a knife or other cutting tool. This ensures above all that the connecting piece is not cut off too short and thus the pipe section does not protrude too far into the container. It may be advantageous to ensure that this groove is not strongly indented at its base in order to prevent a notch effect and an undesired detachment of the cover from the connection stub at an inappropriate time.
  • the shape of the outer surface of the end wall is preferably adapted approximately to the inner surface and is provided on its outer edge with elastic webs, in particular a ring web, projecting in the direction of the spray nozzle. These webs are in the gun, in which the spray container is inserted, and they ensure that the push-out piston is pressed particularly strongly, especially on the outer edge, so that the plastic mass is displaced inward toward the nozzle.
  • a container 1 made of plastic which is only shown in the region of its end serving to discharge its filling, has an essentially cylindrical connecting piece 2, which has an external thread 4 and is arranged centrally in the region of the end wall 6 of the container. If the container has not yet been used, the connecting piece 2 is closed at its end by a cover 8 which is integrally molded during the manufacture of the container 1. In order to enable a simple removal of the cover 8 by means of a knife or other cutting tool, an annular shoulder 12 is provided which extends around the entire circumference of the connecting piece 2 and forms a guide preventing the knife from slipping off.
  • a spray nozzle designated by reference number 20 has the actual nozzle 22.
  • the spray nozzle 20 has in its end region facing away from the nozzle 22 an internal thread 26 which fits the external thread 4 and enables the spray nozzle 20 to be screwed onto the connecting piece 2 (after the cover 8 has been removed).
  • an internal thread 26 which fits the external thread 4 and enables the spray nozzle 20 to be screwed onto the connecting piece 2 (after the cover 8 has been removed).
  • a pipe section 28 which is injection-molded in one piece with it.
  • the pipe section 28 extends through the interior of the internal thread 26 and ends in the example with the internal thread 26. Then, when the spray nozzle 20 is attached to the connection piece 2 by screwing, the pipe section 28 fills the connection piece 2 inside almost all of it length on (the pipe section can be made a little longer if necessary).
  • the outer diameter of the pipe section 28 is equal to the inner diameter of the connection piece 2 or only slightly smaller, so that on the one hand an easy screwing of the spray nozzle onto the connection piece is possible and on the other hand in the area between the outer wall of the pipe piece 28 and the inner wall of the connection piece 2 no disturbing large amounts of the plastic content of the container 1 can reach.
  • the inner surface 5 of the connecting piece 2 having the end wall 6 of the container 1 has an arc shape adapted to the pressure plate 30 of the push-out piston 31 in order to keep the remaining space between the pressure plate 30 and the inner surface 5 of the container and thus the remaining amount of the plastic mass low.
  • the radius 32 of the arc of the pressure plate 30 is kept slightly smaller than that 33 of the inner surface 5, this ensures that when the pressure plate 30 is pressed against the inner surface 5 of the pressure plate, it first lies against the inner surface and then presses further spreads, so that the remaining amount is displaced from the outside in and pressed into the spray nozzle 20.
  • the outer surface 7 of the end wall 6 of the inner surface 5 is adapted and also provided on its edge with an elastic ring web 9.
  • This ring land becomes very strong in the position of the push-out piston 31 shown pressed the corresponding surface of the gun, not shown, so that the pressure plate of the ejection piston 31 abuts especially at its edge close to the inner surface 5 of the end wall 6 and so the material is largely pressed into the spray nozzle 20 from the outside. In this way, the remaining amount in the container 1 is reduced to a minimum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Tubes (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

To achieve an, as far as possible, complete discharge of the plastic contents of a spray (injection) container which has, at its free end, an essentially circular-cylindrical connector projecting via a wall (6) of the container (1), to which an injection nozzle (20) can be attached, via which the material contained in the container (1) can be discharged, the injection nozzle (20) has a tube piece (28) which, when the injection nozzle is fitted, projects into the connector (2) and whose external diameter in that part (36) of the tube piece (28) projecting into the connector (2) is essentially equal to the internal diameter of the connector. <IMAGE>

Description

Die Erfindung betrifft einen Spritzbehälter nach dem Oberbegriff des Anspruchs 1.The invention relates to a spray container according to the preamble of claim 1.

Derartige Spritzbehälter werden z.B. verwendet, um eine plastische Dichtmasse, wie sie etwa für elastische Fugenabdichtungen verwendet wird, durch die Düse auszugeben. Im Bereich des zylindrischen Anschlußstutzens, der im allgemeinen ein Außengewinde trägt, auf das die Spritzdüse aufgeschraubt wird, verbleibt bei bekannten Spritzbehältern nach dem Ausgebrauch der plastischen Dichtmasse eine Restmenge dieses Materials, da es nicht aus dem Behälter restlos ausgegeben werden kann. Dies kann nachteilig sein, wenn die im Behälter verbleibende Masse die Wiederverwendung des im allgemeinen aus Kunststoff bestehenden Behältermaterials erschwert und/oder wenn diese Masse beim Wegwerfen des entleerten Behälters aus Umweltschutzgründen nicht in den Müll geraten soll.Spray containers of this type are used, for example, to dispense a plastic sealing compound, such as is used for example for elastic joint seals, through the nozzle. In the area of the cylindrical connecting piece, which generally has an external thread onto which the spray nozzle is screwed, known spray containers remain after the plastic has been used up Sealant is a residual amount of this material because it cannot be completely dispensed from the container. This can be disadvantageous if the mass remaining in the container makes it difficult to reuse the container material, which is generally made of plastic, and / or if this mass should not be thrown away when the emptied container is thrown away for environmental reasons.

Die EP-A-0 039 245 zeigt bereits einen derartigen Spritzbehälter, bei welchem die Spritzdüse mit einem Rohrstück in den Anschlußstutzen hineinragt, wobei die Durchmesser der Teile aneinander angepaßt sind. Das freie Ende des Rohrstückes ist dabei mit dornenartigen Ansätzen versehen, um beim Einsetzen der Spritzdüse eine Membran, welche den Spritzbehälter abdichtet, zu durchstoßen. Zu diesem Zweck muß die Spritzdüse mit dem Rohrstück in den Behälter hineingestoßen werden und ragt infolgedessen in das Behälterinnere hinein. Beim Entleeren stößt der Kolben an dem herausragenden Rohrstück an, so daß zwangsläufig Plastikmasse im Behälter verbleiben muß und keine vollständige Entleerung in die Düse möglich ist. Ein Vorschieben des Kolbens bis zur inneren Stirnfläche des Spritzbehälters wird im übrigen auch durch die verbleibenden Teile der Membrane und vor allem die Befestigungsansätze derselben im Spritzbehälter verhindert.EP-A-0 039 245 already shows such a spray container, in which the spray nozzle projects with a piece of pipe into the connecting piece, the diameters of the parts being matched to one another. The free end of the pipe section is provided with thorn-like projections in order to penetrate a membrane which seals the spray container when the spray nozzle is inserted. For this purpose, the spray nozzle with the pipe piece must be pushed into the container and consequently protrudes into the interior of the container. When emptying, the piston hits the protruding pipe section, so that plastic mass must inevitably remain in the container and complete emptying into the nozzle is not possible. A pushing of the piston up to the inner end face of the spray container is also prevented by the remaining parts of the membrane and, above all, the attachment approaches thereof in the spray container.

Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit zu schaffen, durch die verhindert werden kann, daß im Bereich des Anschlußstutzens des Behälters erhebliche Mengen des plastischen Inhalts des Behälters verbleiben.The invention has for its object to provide a way by which it can be prevented that considerable amounts of the plastic content of the container remain in the area of the connecting piece of the container.

Diese Aufgabe wird durch den kennzeichnenden Teil des Anspruchs 1 gelöst. Der Vorteil der Erfindung besteht darin, daß das aus dem Behälter im Bereich von dessen Anschlußstutzen nicht ausgebbare restliche plastische Material sich im Inneren des Rohrs befindet und beim Abnehmen der Spritzdüse vom Behälter in dem an der Spritzdüse verbleibenden Rohr bleibt. Durch die Anpassung der Innenfläche der Stirnwand des Spritzbehälters an dem Druckteller des Ausdrückkolbens liegt dieser in der Endstellung völlig an der Innenfläche der Stirnwand des Behälters an, so daß nur noch eine sehr dünne Schicht vom plastischen Material zurückbleiben kann.This object is solved by the characterizing part of claim 1. The advantage of the invention is that the remaining plastic material that cannot be discharged from the container in the area of its connecting piece is inside the tube and remains in the tube remaining on the spray nozzle when the spray nozzle is removed from the container. By adapting the inner surface of the end wall of the spray container to the pressure plate of the ejection piston, the latter lies completely against the inner surface of the end wall of the container in the end position, so that only a very thin layer of plastic material can remain.

Nach dem Abnehmen der Spritzdüse befindet sich somit im wesentlichen kein plastisches Material im Bereich des Anschlußstutzens des Behälters. Die relativ große Kunststoffmasse des leeren Behälters ist daher kaum verunreinigt. Die abgenommene Spritzdüse kann nun entweder einer Materialwiederverwendung durch Rückgabe an den Hersteller zugeführt werden, oder aber es wird, wenn die auszuführenden Arbeiten noch nicht abgeschlossen sind, die von einem Behälter abgenommene Spritzdüse unmittelbar auf einen anderen Behälter aufgesetzt, so daß das in dem Rohrstück verbliebene und noch nicht ausgehärtete oder in anderer Weise unbrauchbar gewordenen Material unmittelbar weiterverwendet werden kann. Wenn somit mit ein- und derselben Spritzdüse der Inhalt einer Vielzahl von Spritzbehältern verarbeitet wird, verbleibt als unverbrauchbarer Rest lediglich der Inhalt einer einzigen Spritzdüse; es kann nämlich auch der Inhalt der Spritzdüse im allgemeinen nicht vom Benutzer aus dieser entfernt werden. Vorteilhaft bestehen der Behälter und die Düse aus Kunststoff.After removing the spray nozzle, there is essentially no plastic material in the area of the connecting piece of the container. The relatively large plastic mass of the empty container is therefore hardly contaminated. The removed spray nozzle can either be recycled by returning it to the manufacturer, or, if the work to be carried out has not yet been completed, the spray nozzle removed from one container is placed directly on another container, so that the remaining in the pipe section and material that has not yet hardened or has otherwise become unusable can be used immediately. If the contents of a large number of spray containers are thus processed with one and the same spray nozzle, only the content of a single spray nozzle remains as unsustainable remainder; namely, the contents of the spray nozzle cannot be removed from the user in general. The container and the nozzle are advantageously made of plastic.

Das freie Ende des Anschlußstutzens des Behälters ist bei noch nicht benutzten Behältern im allgemeinen durch eine an den Anschlußstutzen einstückig angespritzte Abdeckung verschlossen, die vor Benutzung abgetrennt werden muß. Damit dies mit einem Messer einfach und sicher erfolgen kann, ist bei einer Ausführungsform der Erfindung eine mindestens abschnittsweise ringförmig verlaufende Nut, die sich längs des Umfangs des Anschlußstutzens erstreckt, oder einen Ringschalter vorgesehen, die eine Führung für ein Messer oder ein anderes Trennwerkzeug bildet. Dadurch wird vor allem sichergestellt, daß der Anschlußstutzen nicht zu kurz abgeschnitten wird und damit das Rohrstück nicht zu weit in den Behälter hineinragt. Es kann vorteilhaft sein, darauf zu achten, daß diese Nut an ihrem Grund nicht stark eingekerbt ist, um eine Kerbwirkung und eine daraus resultierende unerwünschte Ablösung der Abdeckung zur Unzeit von dem Anschlußstutzen zu verhindern.The free end of the connecting piece of the container is generally closed by a cover which is integrally molded onto the connecting piece and which has to be removed before use. So that this can be done easily and securely with a knife, in one embodiment of the invention an at least partially annular groove extending along the circumference of the connecting piece, or a ring switch is provided, which forms a guide for a knife or other cutting tool. This ensures above all that the connecting piece is not cut off too short and thus the pipe section does not protrude too far into the container. It may be advantageous to ensure that this groove is not strongly indented at its base in order to prevent a notch effect and an undesired detachment of the cover from the connection stub at an inappropriate time.

Vorzugsweise ist die Außenfläche der Stirnwand in ihrer Form etwa der Innenfläche angepaßt und an ihrem Außenrand mit elastischen, in Richtung zur Spritzdüse ragenden Stegen, insbesondere einem Ringsteg, versehen. Diese Stege liegen in der Pistole, in welche der Spritzbehälter eingelegt wird, an und sie gewährleisten, daß der Ausdrückkolben vor allem am Außenrand besonders stark angepreßt wird, so daß die Plastikmasse nach innen zur Düse verdrängt wird.The shape of the outer surface of the end wall is preferably adapted approximately to the inner surface and is provided on its outer edge with elastic webs, in particular a ring web, projecting in the direction of the spray nozzle. These webs are in the gun, in which the spray container is inserted, and they ensure that the push-out piston is pressed particularly strongly, especially on the outer edge, so that the plastic mass is displaced inward toward the nozzle.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels der Erfindung anhand der Zeichnung.

Fig. 1
zeigt in einem teilweise abgebrochenen Längsschnitt einen Behälter, einen Ausdrückkolben und eine Spritzdüse in noch nicht montiertem Zustand,
Fig. 2
zeigt die gleichen Teile im montiertem Zustand.
Further features and advantages of the invention result from the following description of an embodiment of the invention with reference to the drawing.
Fig. 1
shows a partially broken longitudinal section of a container, an ejection piston and a spray nozzle in the not yet assembled state,
Fig. 2
shows the same parts in assembled condition.

Ein Behälter 1 aus Kunststoff, der lediglich im Bereich seines zur Ausgabe seiner Füllung dienenden Endes gezeigt ist, weist einen im wesentlichen zylindrischen Anschlußstutzen 2 auf, der ein Außengewinde 4 aufweist und im Bereich der Stirnwand 6 des Behälters zentrisch angeordnet ist. Bei noch nicht verwendetem Behälter ist der Anschlußstutzen 2 durch eine bei der Herstellung des Behälters 1 einstückig angespritzte Abdeckung 8 an seinem Ende verschlossen. Um ein einfaches Abtrennen der Abdeckung 8 mittels eines Messers oder anderen Schneidwerkzeugs zu ermöglichen, ist eine um den gesamten Umfang des Anschlußstutzens 2 umlaufende Ringschulter 12 vorgesehen, die eine das Abrutschen eines Messers verhindernde Führung bildet.A container 1 made of plastic, which is only shown in the region of its end serving to discharge its filling, has an essentially cylindrical connecting piece 2, which has an external thread 4 and is arranged centrally in the region of the end wall 6 of the container. If the container has not yet been used, the connecting piece 2 is closed at its end by a cover 8 which is integrally molded during the manufacture of the container 1. In order to enable a simple removal of the cover 8 by means of a knife or other cutting tool, an annular shoulder 12 is provided which extends around the entire circumference of the connecting piece 2 and forms a guide preventing the knife from slipping off.

Eine mit dem Bezugszeichen 20 bezeichnete Spritzdüse weist die eigentliche Düse 22 auf. Die Spritzdüse 20 weist in ihrem der Düse 22 abgewandten Endbereich ein Innengewinde 26 auf, das zum Außengewinde 4 paßt und ein Aufschrauben der Spritzdüse 20 auf den Anschlußstutzen 2 (nach dem Entfernen der Abdeckung 8) ermöglicht. In dem dem Behälter 1 zugewandten Endbereich der Spritzdüse 20 ist ein mit dieser einstückig gespritztes Rohrstück 28 vorhanden. Das Rohrstück 28 erstreckt sich durch den Innenraum des Innengewindes 26 hindurch und endet im Beispiel mit dem Innengewinde 26. Dann, wenn die Spritzdüse 20 an dem Anschlußstutzen 2 durch Aufschrauben befestigt ist, füllt das Rohrstück 28 den Anschlußstutzen 2 in dessen Innerem nahezu auf seiner gesamten Länge auf (bei Bedarf kann das Rohrstück etwas länger gemacht werden). Dabei ist der Außendurchmesser des Rohrstückes 28 gleich dem Innendurchmesser des Anschlußstutzens 2 oder nur geringfügig kleiner, so daß einerseits ein leichtes Aufschrauben der Spritzdüse auf den Anschlußstutzen möglich ist und andererseits in den Bereich zwischen der Außenwand des Rohrstücks 28 und der Innenwand des Anschlußstutzens 2 keine störend großen Mengen des plastischen Inhalts des Behälters 1 gelangen können.A spray nozzle designated by reference number 20 has the actual nozzle 22. The spray nozzle 20 has in its end region facing away from the nozzle 22 an internal thread 26 which fits the external thread 4 and enables the spray nozzle 20 to be screwed onto the connecting piece 2 (after the cover 8 has been removed). In the end region of the spray nozzle 20 facing the container 1 there is a pipe section 28 which is injection-molded in one piece with it. The pipe section 28 extends through the interior of the internal thread 26 and ends in the example with the internal thread 26. Then, when the spray nozzle 20 is attached to the connection piece 2 by screwing, the pipe section 28 fills the connection piece 2 inside almost all of it length on (the pipe section can be made a little longer if necessary). The outer diameter of the pipe section 28 is equal to the inner diameter of the connection piece 2 or only slightly smaller, so that on the one hand an easy screwing of the spray nozzle onto the connection piece is possible and on the other hand in the area between the outer wall of the pipe piece 28 and the inner wall of the connection piece 2 no disturbing large amounts of the plastic content of the container 1 can reach.

Wird die Spritzdüse 20 nach dem Entleeren des Behälters 1 von diesem abgeschraubt, so verbleibt im Bereich des Anschlußstutzens 2 praktisch kein Material der plastischen Füllung des Behälters 1.If the spray nozzle 20 is unscrewed from the container 1 after it has been emptied, practically no material of the plastic filling of the container 1 remains in the area of the connecting piece 2.

Die Innenfläche 5 der den Anschlußstutzen 2 aufweisenden Stirnwand 6 des Behälters 1 weist eine dem Druckteller 30 des Ausdrückkolbens 31 angepaßte Bogenform auf um, den verbleibenden Raum zwischen dem Druckteller 30 und der Innenfläche 5 des Behälters und damit die Restmenge der Plastikmasse gering zu halten. Dabei ist jedoch der Radius 32 des Bogens des Drucktellers 30 geringfügig kleiner als derjenige 33 der Innenfläche 5 gehalten, dadurch wird erreicht, daß sich beim Anpressen des Drucktellers 30 an die Innenfläche 5 der Druckteller zunächst außen an der Innenfläche anlegt und sich dann beim weiteren Andrücken spreizt, so daß die Restmenge von außen nach Innen verdrängt und in die Spritzdüse 20 eingepreßt wird. Dabei ist die Außenfläche 7 der Stirnwand 6 der Innenfläche 5 angepaßt und außerdem an ihrem Rand mit einem elastischen Ringsteg 9 versehen. Dieser Ringsteg wird in der dargestellten Lage des Ausdrückkolbens 31 sehr stark an die entsprechende Fläche der nicht dargestellten Pistole angepreßt, so daß der Druckteller des Ausdrückkolbens 31 vor allem an seinem Rand dicht an der Innenfläche 5 der Stirnwand 6 anliegt und so das Material von außen weitgehend in die Spritzdüse 20 eingepreßt wird. Auf diese Weise wird die verbleibende Restmenge auch im Behälter 1 auf ein Mindestmaß reduziert.The inner surface 5 of the connecting piece 2 having the end wall 6 of the container 1 has an arc shape adapted to the pressure plate 30 of the push-out piston 31 in order to keep the remaining space between the pressure plate 30 and the inner surface 5 of the container and thus the remaining amount of the plastic mass low. However, the radius 32 of the arc of the pressure plate 30 is kept slightly smaller than that 33 of the inner surface 5, this ensures that when the pressure plate 30 is pressed against the inner surface 5 of the pressure plate, it first lies against the inner surface and then presses further spreads, so that the remaining amount is displaced from the outside in and pressed into the spray nozzle 20. The outer surface 7 of the end wall 6 of the inner surface 5 is adapted and also provided on its edge with an elastic ring web 9. This ring land becomes very strong in the position of the push-out piston 31 shown pressed the corresponding surface of the gun, not shown, so that the pressure plate of the ejection piston 31 abuts especially at its edge close to the inner surface 5 of the end wall 6 and so the material is largely pressed into the spray nozzle 20 from the outside. In this way, the remaining amount in the container 1 is reduced to a minimum.

Claims (7)

  1. Container (1) for a gun for dispensing a plastic substance having, at a free end, a substantially circular cylindrical connecting sleeve (2) which projects from a wall of the container and with which is associated a gun nozzle (20) through which the material held in the container (1) can be dispensed, the gun nozzle (20) having a tubular piece (28) which projects into the connecting sleeve (2) when the gun nozzle is mounted and the outside diameter of which, in the portion (36) of the tubular piece (28) which projects into the connecting sleeve (2), is substantially equal to the inside diameter of the connecting sleeve (2), characterized in that, when the gun nozzle (20) is mounted, the portion of the tubular piece (28) which is located inside the connecting sleeve (2) occupies substantially the entire length of the connecting sleeve (2) and at least the internal surface (5) of the end wall (6) of the container (1) carrying the connecting sleeve (2) has a curved shape approximately fitting the pressure plate (30) of the ejection plunger (31).
  2. Device according to Claim 1, characterized in that the tubular piece (28) is made integrally with the rest of the gun nozzle.
  3. Device according to any one of the preceding claims, characterized in that the container (1) is made of plastics material.
  4. Device according to any one of the preceding claims, in which, in the condition in which it has not yet been used, the container (1) is closed by a cap (8) in the region of the free end of the connecting sleeve (2), characterized in that a substantially annular groove or shoulder (12) is provided, extending around the connecting sleeve.
  5. Device according to Claim 4, characterized in that the groove has a rounded base.
  6. Device according to one or a plurality of the preceding claims, characterized in that the external surface (7) of the end wall (6) of the container (1) approximately matches the internal surface thereof in its shape and is provided, on its outer edge, with resilient ridges, particularly an annular ridge (9), projecting towards the gun nozzle (20).
  7. Device according to Claim 6, characterized in that the radius (32) of curvature of the pressure plate (30) is kept slightly smaller than that (33) of the internal surface (5) of the end wall (6) of the container (1).
EP93111353A 1992-07-31 1993-07-15 Spray container Expired - Lifetime EP0581128B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9210264U 1992-07-31
DE9210264U DE9210264U1 (en) 1992-07-31 1992-07-31 Spray container

Publications (3)

Publication Number Publication Date
EP0581128A2 EP0581128A2 (en) 1994-02-02
EP0581128A3 EP0581128A3 (en) 1994-06-29
EP0581128B1 true EP0581128B1 (en) 1997-02-26

Family

ID=6882202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111353A Expired - Lifetime EP0581128B1 (en) 1992-07-31 1993-07-15 Spray container

Country Status (6)

Country Link
EP (1) EP0581128B1 (en)
AT (1) ATE149104T1 (en)
DE (2) DE9210264U1 (en)
DK (1) DK0581128T3 (en)
ES (1) ES2101173T3 (en)
GR (1) GR3022717T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4300873A1 (en) * 1993-01-15 1994-07-21 Henkel Kgaa Device for taking up a viscous product
DE19514232A1 (en) * 1995-04-15 1996-10-17 Raab Holger Automatic lubricant dispenser with variable dosing
DE10240997A1 (en) * 2002-09-05 2004-03-18 Hilti Ag mixer
IT201700040393A1 (en) * 2017-04-12 2018-10-12 Mpr S R L GREASING DEVICE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108584A1 (en) * 1982-11-05 1984-05-16 Dentsply Limited Syringes

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US3266682A (en) * 1962-10-10 1966-08-16 American Can Co Container with snap-in plastic nozzle
FR1408429A (en) * 1964-08-06 1965-08-13 Ver Deutsche Metallwerke Ag Collar protective caps for metal tubes
GB1079879A (en) * 1965-07-08 1967-08-16 Flexile Metal Company Ltd Improvements in or relating to collapsible metal tubes
US4225062A (en) * 1978-12-07 1980-09-30 Sneider Vincent R Expanding syringe with filling valve
DE7911394U1 (en) * 1979-04-19 1979-08-30 John, Helmut, 2105 Maschen WIDE SLOT NOZZLE FOR MELT GLUE APPARATUS
EP0039245A1 (en) * 1980-04-30 1981-11-04 Black &amp; Decker Cartridge assembly
US4413753A (en) * 1980-05-15 1983-11-08 Pacer Technology And Resources, Inc. Dispenser for cyanoacrylate adhesives
DE8505393U1 (en) * 1985-02-26 1985-04-11 Korte-Jungermann, Hans-Werner, 4156 Willich Spray cartridge
DE3606003C2 (en) * 1985-08-08 1994-11-10 Goldwell Ag Double chamber container
AT386123B (en) * 1986-05-26 1988-07-11 Pharmazeutische Fabrik Montavit Gmbh PLASTIC CONTAINER FOR THE STORAGE AND APPLICATION OF A CATHETER LUBRICANT
NO883203L (en) * 1987-07-20 1989-01-23 Plough SEAL FOR A DOSAGE DEVICE.
GB2206567B (en) * 1988-08-09 1991-01-30 Permabond Adhesives Collapsible dispensing containers
US5022563A (en) * 1990-01-10 1991-06-11 Electron Fusion Devices, Inc. Dispenser-gun assembly for viscous fluids and dispenser therefor
DE4229122A1 (en) * 1992-09-01 1994-03-03 Friedhelm Schneider Detachment sleeve for cartridge - has elastic lever with parting knife attached to sleeve, which can have two or more ribs

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108584A1 (en) * 1982-11-05 1984-05-16 Dentsply Limited Syringes

Also Published As

Publication number Publication date
EP0581128A2 (en) 1994-02-02
GR3022717T3 (en) 1997-06-30
EP0581128A3 (en) 1994-06-29
DE9210264U1 (en) 1992-11-05
DK0581128T3 (en) 1997-03-17
ATE149104T1 (en) 1997-03-15
ES2101173T3 (en) 1997-07-01
DE59305519D1 (en) 1997-04-03

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