EP0148211B1 - Container, particularly pressure box for dispensing single- or multi-component substances - Google Patents

Container, particularly pressure box for dispensing single- or multi-component substances Download PDF

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Publication number
EP0148211B1
EP0148211B1 EP84902330A EP84902330A EP0148211B1 EP 0148211 B1 EP0148211 B1 EP 0148211B1 EP 84902330 A EP84902330 A EP 84902330A EP 84902330 A EP84902330 A EP 84902330A EP 0148211 B1 EP0148211 B1 EP 0148211B1
Authority
EP
European Patent Office
Prior art keywords
container
additional
additional container
sleeve
plunger
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
EP84902330A
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German (de)
French (fr)
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EP0148211A1 (en
Inventor
Lothar Miczka
Mattias Pauls
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Individual
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Individual
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Publication date
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Priority to AT84902330T priority Critical patent/ATE22051T1/en
Publication of EP0148211A1 publication Critical patent/EP0148211A1/en
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Publication of EP0148211B1 publication Critical patent/EP0148211B1/en
Expired legal-status Critical Current

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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
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/68—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them
    • B65D83/682—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head
    • B65D83/687—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head the products being totally mixed on, or prior to, first use, e.g. by breaking an ampoule containing one of the products
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3216—Rigid containers disposed one within the other
    • B65D81/3222—Rigid containers disposed one within the other with additional means facilitating admixture
    • 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
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/40—Closure caps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S215/00—Bottles and jars
    • Y10S215/08—Mixing

Definitions

  • the invention relates to a container, in particular a pressure can for dispensing one-component or multi-component substances, preferably polyurethane foam, with an additional container receiving further components, which receives a rod which interacts with an inner lid sealed in the additional container and which is sealed by a seal in a with the Bottom of the container connected additional container connection is guided outwards and is movable into the container to detach the lid of the additional container, according to the preamble of claim 1.
  • a container in particular a pressure can for dispensing one-component or multi-component substances, preferably polyurethane foam
  • an additional container receiving further components, which receives a rod which interacts with an inner lid sealed in the additional container and which is sealed by a seal in a with the Bottom of the container connected additional container connection is guided outwards and is movable into the container to detach the lid of the additional container, according to the preamble of claim 1.
  • the invention relates to the formation of pressure cans which, in addition to the liquid substances of the main component which are required for the production and application of the polyurethane foam, also accommodate an additional container connected to the container formed by the pressure can and in which the further components are contained.
  • the substances contained in the pressure vessel are usually liquid and usually consist of a prepolymer, optionally a foamer and the liquid compressed gas that is used to discharge the foam.
  • the other components are present in a relatively small amount and mostly consist of a hydroxy compound with hydroxyl groups, which accelerate the curing of the foam, so that it only needs to take a fraction of the moisture required for curing from the outside air.
  • the other components are introduced into the container shortly before the foam is released after the additional container has been opened by detaching the lid by shaking its contents into the pressure container.
  • the components which are shaken in bring about a chemical reaction, preferably a polyurethane reaction, which gives rise to a rapidly curing foam when it emerges from the can.
  • the invention is based on a previously known container (DE-U-82 27 229.8).
  • the pressure cell known from this has a one-piece base obtained by reshaping a molded part made of metal.
  • the neck of an additional container which is provided with an external thread, is inserted into a recess in this base and is clamped between a shoulder of the additional container and the inner edge of the base recess with the aid of a nut screwed on from the outside and deforming a U-ring seal.
  • the rod which in turn is guided outwards and sealed by a piston-shaped seal in the interior of the additional container, is designed as a shaft which rotates in the additional container neck and is supported on the inside thereof. If the shaft is driven from the outside, this leads to the positive engagement of its inner end with the additional container lid, which is blasted off against the internal pressure in the can.
  • the invention has for its object to easily design a container of the known type so that the parts are easier to assemble into a captive unit, but can be operated with sufficient force to be used by the user to detach the additional container lid.
  • a plate inserted in a recess in the container bottom and fastened by its flanged edge holds a sleeve which is penetrated by the rod designed as an axially movable plunger and which represents the seal and, with the plunger inserted, with its outer and Seals the inner edge of each on a radial collar of the plunger and yields resiliently when the plunger moves axially.
  • Flanging the rim of the plate is simple and leads to a sufficient sealing of the plate in the floor, in particular a pressure can, which means that the additional container is assembled with little effort and the aerosol container is reliably sealed to the outside.
  • the tappet design of the rod considerably reduces the sealing problem of the additional container, the internal pressure being applied and maintained via the dome to the tappet and from there via the inner tappet collar to the sleeve edge and the container.
  • the resilient sleeve is deformed with the outer collar of the ram without losing its tightness, which is brought about by the pressure exerted by the outer edge of the sleeve.
  • the forces to be applied here are practically arbitrary, because the container is placed on a solid base, e.g. B. table top can be pressed.
  • the invention has the advantage that it realizes the simple assembly method of a flanging based and enabled. This reduces the effort for assembly, enables simple design of the parts described, which nevertheless function absolutely reliably.
  • the actual pressure vessel consists of a cylindrical tube 1, which is closed at one end with a dome 2. This has a flanged edge 3, which holds the dome 2 on the relevant end of the container 1 and at the same time brings about a tight connection of the parts.
  • the dome 2 is made from a round plate, a molded part cut out of sheet metal, which has been given the arched shape shown in the drawing by shaping. As shown at 4, the inner edge of the dome 2 is flanged and receives a valve disk 6 with a poppet valve 5. The valve plate 6 is in turn crimped with its edge 7 around the edge 4 of the dome 2 and thereby sealed against it.
  • a rubber stopper 8 which in turn is supported with a flange-shaped widening 9 on the underside 10 of the valve plate 6 and is penetrated by a hollow valve rod 12.
  • This rod has an outer collar 13, which is supported on the outer edge 14 of the plug 8.
  • a plate 15 closes off the tubular section of the valve. Under the plate 15 there are one or more openings 16.
  • a disc seal 17 is clamped by the edge 18 of a cover 19 which overlaps the flange 4 and ensures that no atmospheric moisture can penetrate from the outside.
  • a pressure cell At the opposite end is the bottom 20 of a pressure cell, generally designated 21. It corresponds to a concave dome 2 folded inwards, with sufficient material in its stabilizing folds to push outwards in the event of excessive pressure development, for example at temperatures above 50 ° C, and thus to create an additional security space by increasing the volume of the entire container. Except for the curvature towards the inside, however, the base 20 corresponds in all parts to the dome 2, so that its description can be dispensed with in detail. Accordingly, it is held with a flanged edge 22 on the relevant end of the tube 1, the edge surrounding the recess provided in the middle being flanged, as shown at 23. A plate 24 is fastened on this edge by a flange 25.
  • the plate has an annular recess 26, the axial outer edge 27 of which is dimensioned in such a way that it can only be inserted under tension into the outer end of a tube 28 which forms the jacket of an additional container, generally designated 29.
  • An inner annular groove 30 serves for the positive connection of the tube 28 to an inner collar 32 of an elastic sleeve 31.
  • This collar 32 sits on the shoulder 34 of the annular space 26, while the adjoining cylindrical section 33 of the sleeve 31 extends from the inner edge 35 of the annular space 26 is held.
  • the axial locking towards the inside is ensured by a positive fit at 36 between the inner edge 35 of the recess 26 and an enlarged inner section of the sleeve 31.
  • a rod designed as a plunger 37 is inserted into the tube 28 concentrically with the tube 28. It has an inner collar 38, with which it is supported on the inner edge 39 of the sleeve 31, and also has an outer collar 39 ', which can accordingly be supported on the outer edge 40 of the sleeve 31.
  • the protruding plunger end 41 is covered with a cap 42 in the manner of the cap 19.
  • the inner end 43 of the plunger 37 is supported on the inside 44 of an additional container lid, generally designated 45.
  • This cover sits with an annular shoulder 46 on the inner end face of the tube 28 and extends into the interior of the tube 28 with a section 47 of reduced diameter.
  • an annular seal 48 seals which is inserted into an inner groove 49 of the tube 28.
  • the user first removes the cap 42 in place. This is relatively simple because all he has to do is pull the tongue 50, which forms a structural unit with the cap 42, as a result of which the edge thereof is deformed and pulled off from the flange 23.
  • the user pushes the pressure container 21 with the end 41 of the plunger 37 onto a solid base. This triggers the axial movement of the plunger 37, indicated by the arrow 53, which leads to its resilient yielding due to the support of the outer collar 39 'on the outer edge 40 of the sleeve 31.
  • the inner end 43 of the plunger 37 is non-positively connected to the additional container cover 45.
  • the contents of the container can be dispensed by tilting the valve 12. This is because the plate 15 lifts from the collar 9, as a result of which the opening 16 is cleared and the container contents flow outwards through the valve tube.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Nozzles (AREA)

Abstract

In the container (21) for dispensing preferably polyurethane foam, there is arranged an additional container (29) receiving other components. This additional container receives a rod (37) cooperating with an inner sealed cover (45) in the additional container (29), said rod being directed outwardly through a seal (31) arranged in a closure of the additional container connected to the bottom (20) of the container (21) and which is movable for detaching the cover (45) of the container (21). A disk (24) inserted in a recess of the bottom (20) of the container and secured by means of its frange maintains a sleeve (31) penetrated by the rod (37) as an axially movable pusher; when the rod (37) is driven in, the sleeve provides for a tightness by means of its outer and inner edges (39, 40) each arranged on a radial shoulder (38, 39') of the pusher and resiliently yields upon an axial displacement of said pusher.

Description

Die Erfindung betrifft einen Behälter, insbesondere eine Druckdose zum Ausbringen von ein-oder mehrkomponentigen Substanzen, vorzugsweise Polyurethanschaum, mit einem, weitere Komponenten aufnehmenden Zusatzbehälter, der eine mit einem im Zusatzbehälter abgedichteten inneren Deckel zusammenwirkende Stange aufnimmt, die durch eine Dichtung in einem mit dem Boden des Behälters verbundenen Zusatzbehälteranschluss nach aussen geführt und zum Absprengen des Deckels des Zusatzbehälters in den Behälter beweglich ist, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a container, in particular a pressure can for dispensing one-component or multi-component substances, preferably polyurethane foam, with an additional container receiving further components, which receives a rod which interacts with an inner lid sealed in the additional container and which is sealed by a seal in a with the Bottom of the container connected additional container connection is guided outwards and is movable into the container to detach the lid of the additional container, according to the preamble of claim 1.

Insbesondere bezieht sich die Erfindung auf die Ausbildung von Druckdosen, welche neben den flüssigen Substanzen der Hauptkomponente, die zum Herstellen und Ausbringen des Polyurethanschaumes erforderlich sind, auch einen mit dem von der Druckdose gebildeten Behälter verbundenen Zusatzbehälter aufnehmen, in dem die weiteren Komponenten enthalten sind. Die in dem Druckbehälter enthaltenen Substanzen sind in der Regel flüssig und bestehen in der Regel aus einem Prepolymer, gegebenenfalls einem Schäumer und dem flüssigen Druckgas, das zum Ausbringen des Schaumes benutzt wird. Die weiteren Komponenten sind in verhältnismässig geringer Menge vorhanden und bestehen zumeist aus einer Hydroxyverbindung mit Hydroxylgruppen, die das Aushärten des Schaumes beschleunigen, so dass dieser die für das Aushärten erforderliche Feuchtigkeit nur noch zu einem Bruchteil aus der Aussenluft zu entnehmen braucht. Die weiteren Komponenten werden kurz vor dem Ausbringen des Schaumes nach dem Oeffnen des Zusatzbehälters durch Absprengen des Deckels in den Behälter eingebracht, indem man seinen Inhalt in den Druckbehälter ausschüttelt. Die eingeschüttelten Komponenten bewirken eine chemische Reaktion, vorzugsweise eine Polyurethanreaktion, die nach dem Austritt aus der Dose einen schnell härtenden Schaum entstehen lässt.In particular, the invention relates to the formation of pressure cans which, in addition to the liquid substances of the main component which are required for the production and application of the polyurethane foam, also accommodate an additional container connected to the container formed by the pressure can and in which the further components are contained. The substances contained in the pressure vessel are usually liquid and usually consist of a prepolymer, optionally a foamer and the liquid compressed gas that is used to discharge the foam. The other components are present in a relatively small amount and mostly consist of a hydroxy compound with hydroxyl groups, which accelerate the curing of the foam, so that it only needs to take a fraction of the moisture required for curing from the outside air. The other components are introduced into the container shortly before the foam is released after the additional container has been opened by detaching the lid by shaking its contents into the pressure container. The components which are shaken in bring about a chemical reaction, preferably a polyurethane reaction, which gives rise to a rapidly curing foam when it emerges from the can.

Die Erfindung geht aus von einem vorbekannten Behälter (DE-U-82 27 229.8). Die hieraus bekannte Druckdose hat einen durch Umformen eines aus Metall bestehenden Formteiles gewonnenen einteiligen Boden. In einer Aussparung dieses Bodens ist der mit einem Aussengewinde versehene Hals eines Zusatzbehälters eingesetzt und mit Hilfe einer von aussen aufgeschraubten Mutter unter Verformung einer U-Ringdichtung zwischen einer Schulter des Zusatzbehälters und dem inneren Rand der Bodenaussparung verspannt. Die ihrerseits durch eine kolbenförmige Dichtung im Innern des Zusatzbehälters nach aussen geführte und abgedichtete Stange ist als Welle ausgebildet, die sich in dem Zusatzbehälterhals dreht und innen auf diesem abstützt. Wird die Welle von aussen angetrieben, führt das zum formschlüssigen Eingriff ihres inneren Endes mit dem Zusatzbehälterdeckel, der dadurch gegen den Innendruck in die Dose abgesprengt wird.The invention is based on a previously known container (DE-U-82 27 229.8). The pressure cell known from this has a one-piece base obtained by reshaping a molded part made of metal. The neck of an additional container, which is provided with an external thread, is inserted into a recess in this base and is clamped between a shoulder of the additional container and the inner edge of the base recess with the aid of a nut screwed on from the outside and deforming a U-ring seal. The rod, which in turn is guided outwards and sealed by a piston-shaped seal in the interior of the additional container, is designed as a shaft which rotates in the additional container neck and is supported on the inside thereof. If the shaft is driven from the outside, this leads to the positive engagement of its inner end with the additional container lid, which is blasted off against the internal pressure in the can.

Zwar werden Druckdosen mit angeformtem Boden in grossem Umfang verwendet, wenn der Boden nicht ausgespart ist. Muss der Boden aber mit einem Einsatz nach Art des zum Stande der Technik gehörigen Zusatzbehälters versehen werden, erweist er sich als unpraktisch, weil er die beschriebene Verspannung mit Hilfe einer Mutter und einer U-Ringdichtung erzwingt. Das erfordert einen unverhältnismässigen technischen Aufwand und eine entsprechene komplizierte Montage. Durch die Notwendigkeit, den Deckel gegen den relativ grossen Innendruck des Behälters abzusprengen, wird andererseits durch die Drehbeweglichkeit der Stange, d. h. deren Wellenausbildung und die darauf beruhende, relativ aufwendige Abdichtung und Deckelausbildung erzwungen. Im ganzen ist daher der Aufwand für den Vorteil einer schnelleren Aushärtung des Polyurethanschaumes unverhältnismässig gross.Pressure sockets with molded bottom are used on a large scale if the bottom is not left open. However, if the base has to be provided with an insert of the type of the additional container belonging to the state of the art, it proves to be impractical because it forces the described bracing with the aid of a nut and a U-ring seal. This requires a disproportionate technical effort and a correspondingly complicated assembly. Due to the need to blow off the lid against the relatively high internal pressure of the container, on the other hand, the rotational mobility of the rod, i. H. their shaft formation and the resulting, relatively complex sealing and lid formation forced. Overall, the effort for the advantage of faster curing of the polyurethane foam is therefore disproportionately large.

Der Erfindung liegt die Aufgabe zugrunde, auf einfache Weise einen Behälter der als bekannt vorausgesetzten Art so auszubilden, dass sich die Teile leichter zu einer unverlierbaren Einheit montieren lassen, jedoch mit einer ausreichenden, vom Anwender aufzubringenden Kraft zum Absprengen des Zusatzbehälterdeckels betätigt werden können.The invention has for its object to easily design a container of the known type so that the parts are easier to assemble into a captive unit, but can be operated with sufficient force to be used by the user to detach the additional container lid.

Diese Aufgabe wird gemäss der Erfindung dadurch gelöst, dass ein in einer Aussparung des Behälterbodens eingesetzter und durch seinen umgebördelten Rand befestigter Teller ein von der als axial beweglicher Stössel ausgebildeten Stange durchdrungene Hülse hält, welche die Dichtung darstellt und bei eingesetztem Stössel mit ihrem Aussen- und Innenrand auf je einem radialen Bund des Stössels abdichtet und bei der Axialbewegung des Stössels federnd nachgibt.This object is achieved according to the invention in that a plate inserted in a recess in the container bottom and fastened by its flanged edge holds a sleeve which is penetrated by the rod designed as an axially movable plunger and which represents the seal and, with the plunger inserted, with its outer and Seals the inner edge of each on a radial collar of the plunger and yields resiliently when the plunger moves axially.

Das Umbördeln des Tellerrandes ist einfach und führt zu einer ausreichenden Abdichtung des Tellers im Boden, insbesondere einer Druckdose, wodurch der Zusatzbehälter mit geringem Aufwand montiert und der Aerosolbehälter zuverlässig nach aussen abgedichtet wird. Die Stösselausbildung der Stange reduziert das Abdichtungsproblem des Zusatzbehälters beträchtlich, wobei der Innendruck über den Dom auf den Stössel und von diesem über den inneren Stösselbund auf den Hülsenrand und den Behälter aufgebracht und gehalten wird. Zum Absprengen des Zusatzbehälterdeckels wird die elastisch nachgiebige Hülse mit dem Aussenbund des Stössels verformt, ohne dadurch ihre Dichtigkeit zu verlieren, die über den von dem Aussenrand der Hülse aufgebrachten Druck herbeigeführt wird. Die hierbei anzuwendenden Kräfte sind praktisch beliebig, weil der Behälter von dem Anwender mit dem nach aussen vorstehenden Ende des Stössels auf eine feste Unterlage, z. B. Tischplatte gedrückt werden kann.Flanging the rim of the plate is simple and leads to a sufficient sealing of the plate in the floor, in particular a pressure can, which means that the additional container is assembled with little effort and the aerosol container is reliably sealed to the outside. The tappet design of the rod considerably reduces the sealing problem of the additional container, the internal pressure being applied and maintained via the dome to the tappet and from there via the inner tappet collar to the sleeve edge and the container. To snap off the additional container lid, the resilient sleeve is deformed with the outer collar of the ram without losing its tightness, which is brought about by the pressure exerted by the outer edge of the sleeve. The forces to be applied here are practically arbitrary, because the container is placed on a solid base, e.g. B. table top can be pressed.

Die Erfindung hat den Vorteil, dass sie die einfache Montageweise einer Umbördelung realisiert und ermöglicht. Sie reduziert dadurch den Aufwand für die Montage, ermöglicht eine einfache Ausbildung der beschriebenen Teile, die gleichwohl absolut zuverlässig funktionieren.The invention has the advantage that it realizes the simple assembly method of a flanging based and enabled. This reduces the effort for assembly, enables simple design of the parts described, which nevertheless function absolutely reliably.

Die Einzelheiten, weitere Merkmale und andere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung anhand der Zeichnung. Diese zeigt im axialen Längsschnitt eine Druckdose gemäss der Erfindung.The details, further features and other advantages of the invention will become apparent from the following description with reference to the drawing. This shows in axial axial section a pressure can according to the invention.

Der eigentliche Druckbehälter besteht aus einem zylindrischen Rohr 1, welches an einem Ende mit einem Dom 2 verschlossen ist. Dieser weist einen umgebördelten Rand 3 auf, der den Dom 2 auf dem betreffenden Ende des Behälters 1 festhält und gleichzeitig eine dichte Verbindung der Teile herbeiführt. Der Dom 2 ist aus einer runden Platte hergestellt, einem aus Blech ausgeschnittenen Formteil, der durch Umformen die aus der Zeichnung ersichtliche gewölbte Form erhalten hat. Der innere Rand des Doms 2 ist, wie bei 4 dargestellt, umgebördelt und nimmt einen Ventilteller 6 mit einem Tellerventil 5 auf. Der Ventilteller 6 ist seinerseits mit seinem Rand 7 um den Rand 4 des Doms 2 gebördelt und dadurch gegen diesen abgedichtet. Er hält einen Gummistopfen 8, der sich seinerseits mit einer flanschförmigen Verbreiterung 9 auf der Unterseite 10 des Ventiltellers 6 abgestützt und von einer hohlen Ventilstange 12 durchdrungen wird. Diese Stange hat einen äusseren Bund 13, der sich auf dem Aussenrand 14 des Stopfens 8 abstützt. Den rohrförmigen Abschnitt des Ventils schliesst ein Teller 15 ab. Unter dem Teller 15 liegen eine oder mehrere Durchbrechungen 16. Eine Scheibendichtung 17 wird von dem die Umbördelung 4 übergreifenden Rand 18 eines Deckels 19 verspannt und sorgt dafür, dass keine Luftfeuchtigkeit von aussen eindringen kann.The actual pressure vessel consists of a cylindrical tube 1, which is closed at one end with a dome 2. This has a flanged edge 3, which holds the dome 2 on the relevant end of the container 1 and at the same time brings about a tight connection of the parts. The dome 2 is made from a round plate, a molded part cut out of sheet metal, which has been given the arched shape shown in the drawing by shaping. As shown at 4, the inner edge of the dome 2 is flanged and receives a valve disk 6 with a poppet valve 5. The valve plate 6 is in turn crimped with its edge 7 around the edge 4 of the dome 2 and thereby sealed against it. It holds a rubber stopper 8, which in turn is supported with a flange-shaped widening 9 on the underside 10 of the valve plate 6 and is penetrated by a hollow valve rod 12. This rod has an outer collar 13, which is supported on the outer edge 14 of the plug 8. A plate 15 closes off the tubular section of the valve. Under the plate 15 there are one or more openings 16. A disc seal 17 is clamped by the edge 18 of a cover 19 which overlaps the flange 4 and ensures that no atmospheric moisture can penetrate from the outside.

Am gegenüberliegenden Ende befindet sich der Boden 20 einer allgemein mit 21 bezeichneten Druckdose. Er entspricht einem konkav nach innen gefalteten Dom 2, wobei in seinen stabilisierenden Falten genügend Material vorhanden ist, um bei übermässiger Druckentwicklung, beispielsweise bei Temperaturen über 50 °C, sich nach aussen stülpen und somit durch Volumenvergrösserung der Gesamtbehälter einen zusätzlichen Sicherheitsraum zu schaffen. Bis auf die Wölbung nach innen entspricht jedoch der Boden 20 in allen Teilen dem Dom 2, so dass auf seine Beschreibung im einzelnen verzichtet werden kann. Er wird dementsprechend mit einem umgebördelten Rand 22 auf dem betreffenden Ende des Rohres 1 festgehalten, wobei der die in der Mitte vorgesehene Aussparung umgebende Rand, wie bei 23 dargestellt, umgebördelt ist. Auf diesem Rand ist ein Teller 24 durch eine Umbördelung 25 befestigt. Der Teller hat eine ringförmige Vertiefung 26, deren axialer Aussenrand 27 im Durchmesser so bemessen ist, dass er sich nur unter Spannung in das äussere Ende eines Rohres 28 einführen lässt, das den Mantel eines allgemein mit 29 bezeichneten Zusatzbehälters bildet. Eine innere Ringnut 30 dient zur formschlüssigen Verbindung des Rohres 28 mit einem inneren Bund 32 einer elastischen Hülse 31. Dieser Bund 32 sitzt auf der Schulter 34 des Ringraumes 26, während der anschliessende zylindrische Abschnitt 33 der Hülse 31 von dem inneren Rand 35 des Ringraumes 26 gehalten wird. Die axiale Versperrung nach innen wird durch einen Formschluss bei 36 zwischen dem inneren Rand 35 der Aussparung 26 und einem im Durchmesser vergrösserten inneren Abschnitt der Hülse 31 gewährleistet.At the opposite end is the bottom 20 of a pressure cell, generally designated 21. It corresponds to a concave dome 2 folded inwards, with sufficient material in its stabilizing folds to push outwards in the event of excessive pressure development, for example at temperatures above 50 ° C, and thus to create an additional security space by increasing the volume of the entire container. Except for the curvature towards the inside, however, the base 20 corresponds in all parts to the dome 2, so that its description can be dispensed with in detail. Accordingly, it is held with a flanged edge 22 on the relevant end of the tube 1, the edge surrounding the recess provided in the middle being flanged, as shown at 23. A plate 24 is fastened on this edge by a flange 25. The plate has an annular recess 26, the axial outer edge 27 of which is dimensioned in such a way that it can only be inserted under tension into the outer end of a tube 28 which forms the jacket of an additional container, generally designated 29. An inner annular groove 30 serves for the positive connection of the tube 28 to an inner collar 32 of an elastic sleeve 31. This collar 32 sits on the shoulder 34 of the annular space 26, while the adjoining cylindrical section 33 of the sleeve 31 extends from the inner edge 35 of the annular space 26 is held. The axial locking towards the inside is ensured by a positive fit at 36 between the inner edge 35 of the recess 26 and an enlarged inner section of the sleeve 31.

Konzentrisch zu dem Rohr 28 ist eine als Stössel 37 ausgebildete Stange in das Rohr 28 eingesetzt. Sie weist einen inneren Bund 38 auf, mit dem sie sich auf dem Innenrand 39 der-Hülse 31 abstützt, und besitzt auch einen äusseren Bund 39', der sich dementsprechend auf dem Aussenrand 40 der Hülse 31 abstützen kann. Das vorstehende Stösselende 41 ist mit einer Kappe 42 nach Art der Kappe 19 abgedeckt.A rod designed as a plunger 37 is inserted into the tube 28 concentrically with the tube 28. It has an inner collar 38, with which it is supported on the inner edge 39 of the sleeve 31, and also has an outer collar 39 ', which can accordingly be supported on the outer edge 40 of the sleeve 31. The protruding plunger end 41 is covered with a cap 42 in the manner of the cap 19.

Das innere Ende 43 des Stössels 37 stützt sich auf der Innenseite 44 eines allgemein mit 45 - bezeichneten Zusatzbehälterdeckels ab. Dieser Deckel sitzt mit einer Ringschulter 46 auf der inneren Stirnseite des Rohres 28 und reicht mit einem im Durchmesser verminderten Abschnitt 47 in das Innere des Rohres 28. Auf diesem Abschnitt dichtet eine Ringdichtung 48 ab, die in eine Innennut 49 des Rohres 28 eingesetzt ist.The inner end 43 of the plunger 37 is supported on the inside 44 of an additional container lid, generally designated 45. This cover sits with an annular shoulder 46 on the inner end face of the tube 28 and extends into the interior of the tube 28 with a section 47 of reduced diameter. On this section an annular seal 48 seals which is inserted into an inner groove 49 of the tube 28.

An Ort und Stelle nimmt der Verwender zunächst die Kappe 42 ab. Das ist relativ einfach, weil er dazu lediglich an der Zunge 50 zu ziehen braucht, welche eine Baueinheit mit der Kappe 42 bildet, wodurch deren Rand verformt und von der Umbördelung 23 abgezogen wird. Nachdem in entsprechender Weise die Zunge 51 der Kappe 19 betätigt worden ist, stösst der Verwender den Druckbehälter 21 mit dem Ende 41 des Stössels 37 auf eine feste Unterlage. Dadurch wird die durch den Pfeil 53 angedeutete Axialbewegung des Stössels 37 ausgelöst, der infolge der Abstützung des Aussenbundes 39' auf dem Aussenrand 40 der Hülse 31 zu deren federndem Nachgeben führt. Dadurch wird das innere Ende 43 des Stössels 37 mit dem Zusatzbehälterdeckel 45 kraftschlüssig. Das führt zum Abspringen des Deckels 45 in das Innere des Druckbehälters 21 entsprechend der Richtung der Pfeile 54. Der dadurch in das Innere des Druckbehälters 21 freigegebene Inhalt 55 des Zusatzbehälters 29 wird durch Schütteln in die Füllung 56 des Druckbehälters 21 eingebracht. Es handelt sich hierbei um die eingangs beschriebenen weiteren Komponenten.The user first removes the cap 42 in place. This is relatively simple because all he has to do is pull the tongue 50, which forms a structural unit with the cap 42, as a result of which the edge thereof is deformed and pulled off from the flange 23. After the tongue 51 of the cap 19 has been actuated in a corresponding manner, the user pushes the pressure container 21 with the end 41 of the plunger 37 onto a solid base. This triggers the axial movement of the plunger 37, indicated by the arrow 53, which leads to its resilient yielding due to the support of the outer collar 39 'on the outer edge 40 of the sleeve 31. As a result, the inner end 43 of the plunger 37 is non-positively connected to the additional container cover 45. This leads to the cover 45 jumping off into the interior of the pressure container 21 in accordance with the direction of the arrows 54. The contents 55 of the additional container 29 thereby released into the interior of the pressure container 21 are introduced into the filling 56 of the pressure container 21 by shaking. These are the other components described at the beginning.

Nachdem die flüssigen Komponenten auf die beschriebene Weise innig miteinander gemischt worden sind, kann durch Kippen des Ventils 12 der Behälterinhalt ausgebracht werden. Denn dabei hebt sich der Teller 15 von dem Bund 9, wodurch die Oeffnung 16 frei wird und der Behälterinhalt durch das Ventilrohr nach aussen strömt.After the liquid components have been mixed intimately in the manner described, the contents of the container can be dispensed by tilting the valve 12. This is because the plate 15 lifts from the collar 9, as a result of which the opening 16 is cleared and the container contents flow outwards through the valve tube.

Claims (8)

1. Container, particularly pressure box for dispensing single- or multicomponent substances, preferably polyurethane foam, with an additional container (29) for further components, receiving a bar (37) hermetically closed within the additional container and cooperating with an inner lid (45), said bar leading outwardly through a gasket in the bottom (20) of the container connected with the additional container connection (24) and being movable for the removal of the lid of the additional container, characterized in that a plate (24), fastened by means of a flanged edge (25), is inserted in a cutout in the container bottom (20) and is holding a sleeve (31) penetrated by the bar (37), formed as an axially movable plunger, which sleeve is forming the gasket when the plunger (37) with its outer and inner edges (32, 40) each are inserted and bonded on a radial collar (38, 39') of the plunger (37) and is flexible against axial movements thereof.
2. Container according to claim 1, characterized in that the sleeve (31) is made of an elastomeric material.
3. Container according to claim 1 or 2, characterized in that the bottom (20) of the container (21) has a flanged edge (22) for the fastening thereof and a cutout for the fastening of the plate (24).
4. Container according to claim 3, characterized in that the bottom (20) of the container (1) has a mainly inwardly bending concave shape.
5. Container according to one of the claims 1 through 4, characterized in that the plunger (37) has an end (41) protruding outwardly and intended for pushing against a firm base support. and that the end is covered outwardly by means of a cap (42) clamped onto the flanged edge (25) of the plate.
6. Container according to one of the claims 1 through 5, characterized in that the additional container (29) consisting of a pipe (28) is tension- ally connected with the outer edge (27) of an annual surpression (26) in the plate (24).
7. Container according to one of the claims 1 through 6, characterized in that the outer edge of an inner collar (32) of the sleeve (31) is form- closed connected with the pipe (28) of the additional container (29).
8. Container according to one of the claims 1 through 7, characterized in that the pipe (28) forming the inner end of the additional container (29) has an annular gasket (48) on the inside, behind which a shoulder (47) of the additional container lid (45) is flexibly resting against said inside, and that the lid is supported by the end of the pipe (28).
EP84902330A 1983-06-24 1984-06-19 Container, particularly pressure box for dispensing single- or multi-component substances Expired EP0148211B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84902330T ATE22051T1 (en) 1983-06-24 1984-06-19 CONTAINER, ESPECIALLY PRESSURE CAN, FOR APPLICATION OF SINGLE OR MULTI-COMPONENT SUBSTANCES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3322811 1983-06-24
DE3322811A DE3322811C2 (en) 1983-06-24 1983-06-24 Containers, in particular pressure cans for dispensing single or multi-component substances

Publications (2)

Publication Number Publication Date
EP0148211A1 EP0148211A1 (en) 1985-07-17
EP0148211B1 true EP0148211B1 (en) 1986-09-10

Family

ID=6202320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84902330A Expired EP0148211B1 (en) 1983-06-24 1984-06-19 Container, particularly pressure box for dispensing single- or multi-component substances

Country Status (6)

Country Link
US (1) US4651899A (en)
EP (1) EP0148211B1 (en)
JP (1) JPH0784228B2 (en)
AU (1) AU572861B2 (en)
DE (1) DE3322811C2 (en)
WO (1) WO1985000157A1 (en)

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Also Published As

Publication number Publication date
JPH0784228B2 (en) 1995-09-13
WO1985000157A1 (en) 1985-01-17
DE3322811A1 (en) 1985-01-03
DE3322811C2 (en) 1996-12-12
AU572861B2 (en) 1988-05-19
US4651899A (en) 1987-03-24
EP0148211A1 (en) 1985-07-17
AU3015184A (en) 1985-01-25
JPS60501650A (en) 1985-10-03

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