EP0244502A1 - Transport barrel for liquids, especially for beer - Google Patents

Transport barrel for liquids, especially for beer Download PDF

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Publication number
EP0244502A1
EP0244502A1 EP86106300A EP86106300A EP0244502A1 EP 0244502 A1 EP0244502 A1 EP 0244502A1 EP 86106300 A EP86106300 A EP 86106300A EP 86106300 A EP86106300 A EP 86106300A EP 0244502 A1 EP0244502 A1 EP 0244502A1
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EP
European Patent Office
Prior art keywords
barrel
wall thickness
inner separating
separating body
diameter
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.)
Withdrawn
Application number
EP86106300A
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German (de)
French (fr)
Inventor
Leopold Springer
Hartmut Freitag
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.)
Gebr Thielmann AG KG
Original Assignee
Gebr Thielmann AG KG
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
Priority to DE8608406U priority Critical patent/DE8608406U1/en
Application filed by Gebr Thielmann AG KG filed Critical Gebr Thielmann AG KG
Priority to EP86106300A priority patent/EP0244502A1/en
Publication of EP0244502A1 publication Critical patent/EP0244502A1/en
Withdrawn legal-status Critical Current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
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape
    • B65D7/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape of curved cross-section, e.g. cans of circular or elliptical cross-section
    • B65D7/045—Casks, barrels, or drums in their entirety, e.g. beer barrels, i.e. presenting most of the following features like rolling beads, double walls, reinforcing and supporting beads for end walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/0412—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container
    • B67D1/0437—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers the whole dispensing unit being fixed to the container comprising a gas pressure space within the container for the liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0829—Keg connection means
    • B67D1/0831—Keg connection means combined with valves
    • B67D1/0835—Keg connection means combined with valves with one valve

Definitions

  • the invention relates to a transport keg for liquids, in particular for beer, with a keg body and an inner separator body arranged in the keg body, symmetrical to a main axis, preferably rotationally symmetrical, having different diameters in a plane perpendicular to the main axis, the inner separator body being connected pressure-tight to the keg body and the interior of the barrel body is divided into a liquid space and a pressure medium space by the inner separating body.
  • Transport barrels of the type in question are known to the applicant from practice. They are characterized in that not only the liquid itself, in particular the beer, is contained in the barrel body, but that a separate pressure medium space for a pressure medium is also provided in the barrel body, through which the liquid can be conveyed out of the liquid space if necessary . With such a transport barrel, the user is completely self-sufficient since he does not need a CO2 cartridge or a compressed gas system.
  • the wall thickness of the partition in practice due to the symmetrical design of the transport barrel, an inner separating body symmetrical to a main axis, preferably of a frustoconical or truncated pyramid shape, is matched to the maximum pressure difference to be expected between the two rooms from a safety point of view.
  • the wall thickness of the inner separating body is therefore relatively large, depending on the material used, so that the transport barrel as a whole has a not inconsiderable weight.
  • transport drums of the type in question have been made primarily from aluminum, specifically in the deep-drawing process with a barrel body consisting of an upper part and a lower part.
  • the inner separator is also in the Thermoforming process made with the most uniform wall thickness possible. All of this has so far been viewed as unproblematic with the relatively light and inexpensive material aluminum, but the situation is more difficult if the material used is more expensive and more difficult to machine stainless steel.
  • the invention is based on the object of optimizing the known transport barrel for liquids, in particular for beer, with regard to the weight and the production technology, in particular taking into account production from stainless steel.
  • the transport drum according to the invention in which the above-mentioned object is achieved, is characterized in that the wall thickness of the inner separating body is determined as a function of the diameter of the inner separating body in the plane perpendicular to the main axis, namely with a large diameter a large wall thickness and with a small diameter a small wall thickness is provided.
  • the wall thickness of the inner separator must be matched to the maximum pressure differences to be expected from a safety point of view, but that this does not necessarily lead to a uniform wall thickness of the inner separator in all areas.
  • the required wall thickness for the inner separating body of the transport drum depends on the diameter of the inner separating body in the respective area.
  • the wall thickness of the inner separating body is expediently dimensioned such that the inner separating body has approximately the same strength in all areas, regardless of the diameter.
  • the transport barrel for liquids shown in a preferred embodiment in FIG. 1 is specifically a transport barrel for beer, which is designed as a so-called gas chamber keg.
  • This transport barrel initially has a barrel body 1, which consists of an upper part 2 and a lower part 3.
  • the barrel body 1 still has an outer jacket made of plastic, preferably can have a tough elastic rigid foam, which is particularly useful when manufacturing the barrel body 1 from stainless steel.
  • the wall thickness of the upper part 2 and lower part 3 of the barrel body 1 for the stainless steel inner body can be very small. All of this is known for transport drums of the type in question.
  • An inner separating body 7 is arranged in the barrel body 1, which in the illustrated and preferred exemplary embodiment, like the barrel body 1, is symmetrical, preferably rotationally symmetrical, about a main axis and has different diameters in a plane perpendicular to the main axis.
  • the inner separating body 7 is pressure-tightly connected to the barrel body 1 and divides the interior of the barrel body 1 into a liquid space 8 and a pressure medium space 9.
  • the liquid in particular the beer, is in operation in the liquid space 8
  • a pressure medium is in operation in the pressure medium space 9. in particular CO2, which serves as a conveyor for the liquid from the liquid space 8 out.
  • the inner separating body 7 in the preferred exemplary embodiment shown here has a frustoconical shape, with a slightly concave inwardly curved outer surface.
  • Other cross-sectional shapes are of course equally conceivable here.
  • Fig. 2 shows clearly in connection with Fig. 1 that in the transport drum according to the invention the wall thickness of the inner separating body 7 is determined depending on the diameter of the inner separating body 7 in the plane perpendicular to the main axis, namely with a large diameter a large wall thickness and with a small one Diameter a small wall thickness is provided.
  • the wall thickness of the inner separating body 7 is in the From shown here leadership example dimensioned so that the inner separating body 7 has approximately the same strength in all areas, regardless of the diameter.
  • the size relationships in Fig. 2 are not to scale.
  • the transport barrel shown in the figures is made of stainless steel.
  • an inner separating body 7 made of stainless steel with a diameter of 60 mm to 100 mm, preferably of approximately 80 mm, has a wall thickness of 0.4 mm to 0.8 mm, preferably of approximately 0 , 6 mm, and with a diameter of 360 mm to 420 mm, preferably of approximately 390 mm, a wall thickness of 1.8 mm to 2.4 mm, preferably of approximately 2.1 mm, is provided.
  • a wall thickness of 1.8 mm to 2.4 mm preferably of approximately 2.1 mm
  • the inner separating body 7 has a wall thickness of approximately 0.6 mm with a diameter of approximately 80 mm, while in the lower region 11 with a diameter of approximately 390 mm a wall thickness of approximately 2.1 mm is given. In the case of a transport drum manufactured according to conventional standards, the inner separating body 7 would have a wall thickness of approximately 2.1 mm everywhere. The reduced wall thickness of the inner separating body 7 in the areas of smaller diameter results in a material saving and weight saving of approximately 3 to 4 kg in the specifically explained exemplary embodiment.
  • the figures show a particularly preferred exemplary embodiment of the invention, in which an independent teaching of the invention is concretized when the inner separating body 7 is designed as a stretch-push molded body.
  • the inner separating body 7 is thus produced in a stretch-push process, which on the one hand allows a particularly simple different dimensioning of the wall thickness, on the other hand leads to a particularly high strain hardening of the material and is ultimately relatively inexpensive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

The transport barrel has a barrel body (1) and an inside separation body (7) which is arranged in the barrel body (1), is symmetrical, preferably rotationally symmetrical, to a main axis, and has different diameters in a plane perpendicular to the main axis, said inside separation body (7) being connected to the barrel body (1) in a pressure-resistant manner, and the interior of the barrel body (1) being divided by the inside separation body (7) into a liquid space (8) and a pressuriser space (9). Optimisation in respect of the weight and the production technique, in particular production from special steel, is achieved by the fact that the wall thickness of the inside separation body (7) is determined in dependence on the diameter of the inside separation body (7) in the plane perpendicular to the main axis, namely a large wall thickness being provided for a large diameter and a small wall thickness for a small diameter. <IMAGE>

Description

Die Erfindung betrifft ein Transportfaß für Flüssigkeiten, insbesondere für Bier, mit einem Faßkörper und einem im Faßkörper angeordneten, zu einer Hauptachse symmetrischen, vorzugsweise rotationssymmetrischen, in einer Ebene senkrecht zur Hauptachse unterschiedliche Durchmesser aufweisenden Innentrennkörper, wobei der Innentrennkörper mit dem Faßkörper druckfest verbunden ist und durch den Innentrennkörper das Innere des Faßkörpers in einen Flüssigkeitsraum und einen Druckmittelraum unterteilt ist.The invention relates to a transport keg for liquids, in particular for beer, with a keg body and an inner separator body arranged in the keg body, symmetrical to a main axis, preferably rotationally symmetrical, having different diameters in a plane perpendicular to the main axis, the inner separator body being connected pressure-tight to the keg body and the interior of the barrel body is divided into a liquid space and a pressure medium space by the inner separating body.

Transportfässer der in Rede stehenden Art sind der Anmelderin aus der Praxis bekannt. Sie zeichnen sich dadurch aus, daß im Faßkörper nicht nur die Flüssigkeit selbst, insbesondere also das Bier, enthalten ist, sondern daß im Faßkörper auch noch ein abgetrennter Druckmittelraum für ein Druck­mittel vorgesehen ist, durch das die Flüssigkeit aus dem Flüssigkeitsraum bei Bedarf herausgefördert werden kann. Mit einem solchen Transportfaß ist also der Benutzer vollkommen autark, da er weder eine CO₂-Patrone, noch eine Druckgasanlage benötigt.Transport barrels of the type in question are known to the applicant from practice. They are characterized in that not only the liquid itself, in particular the beer, is contained in the barrel body, but that a separate pressure medium space for a pressure medium is also provided in the barrel body, through which the liquid can be conveyed out of the liquid space if necessary . With such a transport barrel, the user is completely self-sufficient since he does not need a CO₂ cartridge or a compressed gas system.

Bei dem zuvor erläuterten bekannten Transportfaß ist der Innendruck in den beiden Räumen unterschiedlich, so daß die Trennwand zwischen den beiden Räumen hinsichtlich ihrer Festigkeit auf diese Druckunterschiede ausgelegt werden muß. Es ist selbstverständlich, daß hier ganz erhebliche Sicherheits­werte eingehalten werden müssen. Die Wanddicke der Trennwand, in der Praxis wegen der zu einer Hauptachse symmetrischen Gestaltung des Transportfasses ein zu einer Hauptachse symmetrischer Innentrennkörper, vorzugsweise von kegelstumpfförmiger oder pyramidenstumpfförmiger Gestalt, ist auf die un­ter sicherheitstechnischen Anspekten maximal zu erwartende Druckdifferenz zwischen den beiden Räumen abgestimmt. Die Wanddicke des Innentrennkörpers ist je nach dem verwendeten Material also relativ groß, das Transportfaß insgesamt hat dadurch ein nicht unerhebliches Gewicht.In the known transport drum explained above, the internal pressure in the two rooms is different, so that the partition between the two rooms must be designed for these pressure differences with regard to their strength. It goes without saying that considerable safety values must be observed here. The wall thickness of the partition, in practice due to the symmetrical design of the transport barrel, an inner separating body symmetrical to a main axis, preferably of a frustoconical or truncated pyramid shape, is matched to the maximum pressure difference to be expected between the two rooms from a safety point of view. The wall thickness of the inner separating body is therefore relatively large, depending on the material used, so that the transport barrel as a whole has a not inconsiderable weight.

Bislang werden Transportfässer der in Rede stehenden Art in erster Linie aus Aluminium hergestellt, und zwar im Tiefziehverfahren mit einem aus Ober­teil und Unterteil bestehenden Faßkörper. Auch der Innentrennkörper wird im Tiefziehverfahren hergestellt, mit möglichst einheitlicher Wanddicke. Dies alles ist bei dem relativ leichten und kostengünstigen Material Aluminium bislang als unproblematisch angesehen worden, schwieriger gestalten sich die Verhältnisse aber, wenn als Material teurer und schwerer zu bearbei­tender Edelstahl verwendet wird.Up to now, transport drums of the type in question have been made primarily from aluminum, specifically in the deep-drawing process with a barrel body consisting of an upper part and a lower part. The inner separator is also in the Thermoforming process made with the most uniform wall thickness possible. All of this has so far been viewed as unproblematic with the relatively light and inexpensive material aluminum, but the situation is more difficult if the material used is more expensive and more difficult to machine stainless steel.

Der Erfindung liegt die Aufgabe zugrunde, das bekannte Transportfaß für Flüssigkeiten, insbesondere für Bier, hinsichtlich des Gewichts und der Fertigungstechnik zu optimieren, insbesondere unter Berücksichtigung einer Herstellung aus Edelstahl.The invention is based on the object of optimizing the known transport barrel for liquids, in particular for beer, with regard to the weight and the production technology, in particular taking into account production from stainless steel.

Das erfindungsgemäße Transportfaß, bei dem die zuvor aufgezeigte Aufgabe ge­löst ist, ist dadurch gekennzeichnet, daß die Wanddicke des Innentrennkör­pers in Abhängigkeit vom Durchmesser des Innentrennkörpers in der Ebene senkrecht zur Hauptachse bestimmt ist, nämlich bei einem großen Durchmesser eine große Wanddicke und bei einem kleinen Durchmesser eine kleine Wanddicke vorgesehen ist. Erfindungsgemäß ist erkannt worden, daß die Wanddicke des Innentrennkörpers zwar auf die sicherheitstechnisch ma­ximal zu erwartenden Druckdifferenzen abgestimmt werden muß, daß dies aber nicht zwingend zu einer einheitlichen Wanddicke des Innentrennkörpers in allen Bereichen führt. Erfindungsgemäß ist nämlich erkannt worden, daß für den Innentrennkörper des Transportfasses die erforderliche Wanddicke vom Durchmesser des Innentrennkörpers im jeweiligen Bereich abhängt. Ein solcher Zusammenhang ist als sogenannte "Kesselformel" an sich bekannt (vgl. "Dubbels Taschenbuch für den Maschinenbau", Band 1, Springer-Verlag, Berlin, Heidelberg, New York, 1966, Seite 405), eine Anwendung bei einem Transport­faß der in Rede stehenden Art kam aber bislang offensichtlich niemals in Frage. Berücksichtigt man aber diesen Zusammenhang bei der Bemessung der Wanddicke des Innentrennkörpers, so ergibt sich zumindest bei Verwendung von Edelstahl eine ganz merkliche Geiwchtsverringerung, da die Wanddicke in Bereichen kleinen Durchmessers gegenüber den bisherigen Werten erheb­lich verringert ist. Bei Aluminium als Material ist der Einfluß wegen des geringeren spezifischen Gewichts von Aluminium geringer. Entsprechendes gilt für die Kostenersparnis hinsichtlich der angesprochenen Materialien.The transport drum according to the invention, in which the above-mentioned object is achieved, is characterized in that the wall thickness of the inner separating body is determined as a function of the diameter of the inner separating body in the plane perpendicular to the main axis, namely with a large diameter a large wall thickness and with a small diameter a small wall thickness is provided. According to the invention, it has been recognized that the wall thickness of the inner separator must be matched to the maximum pressure differences to be expected from a safety point of view, but that this does not necessarily lead to a uniform wall thickness of the inner separator in all areas. According to the invention, it has been recognized that the required wall thickness for the inner separating body of the transport drum depends on the diameter of the inner separating body in the respective area. Such a connection is known per se as the so-called "boiler formula" (cf. "Dubbel's Taschenbuch für den Maschinenbau", Volume 1, Springer-Verlag, Berlin, Heidelberg, New York, 1966, page 405), an application in a transport barrel in So far, the type in question has obviously never been considered. However, if this relationship is taken into account when dimensioning the wall thickness of the inner separating body, there is a very noticeable reduction in weight, at least when using stainless steel, since the wall thickness in areas of small diameter is considerably reduced compared to the previous values. With aluminum as a material, the influence is less because of the lower specific weight of aluminum. The same applies to the cost savings with regard to the materials mentioned.

Grundsätzlich ist darauf hinzuweisen, daß anstelle einer rotationssymme­trischen Form des Innentrennkörpers natürlich auch andere Querschnittsfor­men denkbar sind, für die dann eine entsprechende Bestimmung der Wanddicke gilt. Auch andere Bereiche des Faßkörpers des erfindungsgemäßen Transport­fasses können mit unterschiedlichen Wanddicken in Abhängigkeit unterschied­licher Durchmesser ausgestaltet sein, die Lehre der Erfindung ist insoweit nicht auf den Innentrennkörper beschränkt, wenngleich dort wegen der kegel­stumpfförmigen bzw. pyramidenstumpfförmigen Gestaltung die stärkste Wirkung auftritt.Basically, it should be pointed out that instead of a rotationally symmetrical shape of the inner separating body, other cross-sectional shapes are of course also conceivable, for which a corresponding determination of the wall thickness then applies. Other areas of the barrel body of the transport barrel according to the invention can also be designed with different wall thicknesses depending on different diameters; the teaching of the invention is not limited to the inner partition body, although the greatest effect occurs because of the frustoconical or truncated pyramid design.

Nach einer weiteren Lehre der Erfindung ist die Wanddicke des Innentrennkör­pers zweckmäßigerweise so bemessen, daß der Innentrennkörper in allen Be­reichen, unabhängig vom Durchmesser, etwa die gleiche Festigkeit aufweist. Bei Bestimmung der Wanddicke exakt entsprechend der "Kesselformel" ergibt sich dies in gleicher Weise.According to a further teaching of the invention, the wall thickness of the inner separating body is expediently dimensioned such that the inner separating body has approximately the same strength in all areas, regardless of the diameter. When determining the wall thickness exactly according to the "boiler formula", this results in the same way.

Für ein übliches Transportfaß für Flüssigkeiten, insbesondere für Bier, bei dem der Flüssigkeitsraum ein Volumen von ca. 50 l aufweist, gilt, daß bei einem aus Edelstahl bestehenden Innentrennkörper bei einem Durchmesser von 60 mm bis 100 mm, vorzugsweise von ca. 80 mm, eine Wanddicke von 0,4 mm bis 0,8 mm, vorzugsweise von ca. 0,6 mm, und bei einem Durchmesser von 360 mm bis 420 mm, vorzugsweise von ca. 390 mm, eine Wanddicke von 1,8 mm bis 2,4 mm, vorzugsweise von ca. 2,1 mm, vorgesehen ist. Diese angegebenen Maße betreffen den obersten und den untersten Bereich des Innentrennkörpers. Der Verlauf der Seitenfläche des Innentrennkörpers zwischen diesen Bereichen muß nicht gerade sein, sondern kann durchaus auch einen bogenförmigen Ver­lauf haben. Zumeist ist bei bekannten Transportfässern der Innentrennkörper konkav geformt, wölbt sich also ein wenig zum Flüssigkeitsraum hin. Für andere Volumina des Flüssigkeitsraums gelten entsprechend andere Maße.For a conventional transport barrel for liquids, in particular for beer, in which the liquid space has a volume of approx. 50 l, it applies that in the case of an internal separating body made of stainless steel with a diameter of 60 mm to 100 mm, preferably of approx. a wall thickness of 0.4 mm to 0.8 mm, preferably of approximately 0.6 mm, and with a diameter of 360 mm to 420 mm, preferably of approximately 390 mm, a wall thickness of 1.8 mm to 2, 4 mm, preferably of approximately 2.1 mm, is provided. These dimensions refer to the top and bottom area of the inner separator. The course of the side surface of the inner separating body between these areas does not have to be straight, but can also have an arcuate course. In most cases, the inner separating body in known transport drums has a concave shape, so it bulges a little towards the liquid space. Other dimensions apply accordingly for other volumes of the liquid space.

Zuvor ist erläutert worden, daß bekannte Transportfässer der in Rede ste­henden Art, die aus Aluminium hergestellt sind, im Tiefziehverfahren herge­stellt werden. Das gilt auch und besonders für den Innentrennkörper dieser bekannten Transportfässer. Erfindungsgemäß ist nun erkannt worden, daß ins­besondere, aber nicht ausschließlich, für die Herstellung aus Edelstahl ein anderes Herstellungsverfahren Vorteile bietet. Nach einer weiteren Lehre der Erfindung, der besondere und auch eigenständige Bedeutung zukommt, ist näm­lich der Innentrennkörper als Streck-Drück-Formkörper ausgeführt, also in einem Streck-Drück-Verfahren hergestellt. Streck-Drück-Verfahren sind als solche bekannt (vgl. Lueger "Lexikon der Technik", Band 8, "Lexikon der Fertigungstechnik und Arbeitsmaschinen", DVA, Stuttgart 1967, Seite 142, li. Sp.) und führen zu einer besonders hohen Kaltverfestigung des Materials. Mit einem solchen Verfahren lassen sich die gewünschten unterschiedlichen Wanddicken des Innentrennkörpers in unterschiedlichen Bereichen sehr ein­fach realisieren, indem man die Stellung der Drückwalzen zur Drückform, ins­besondere die Winkelstellung, verändert. Gerade für die Herstellung eines erfindungsgemäßen Transportfasses ist also ein Streck-Drück-Verfahren für die Herstellung zumindest des Innentrennkörpers besonders geeignet. Im üb­rigen sind die Werkzeugkosten im Vergleich mit den Werkzeugkosten zum Tief­ziehen erheblich niedriger.It has previously been explained that known transport drums of the type in question, which are made of aluminum, are manufactured in the deep-drawing process. This also and especially applies to the internal separating body known transport barrels. According to the invention, it has now been recognized that in particular, but not exclusively, another manufacturing process offers advantages for the production from stainless steel. According to a further teaching of the invention, which has special and also independent meaning, namely the inner separating body is designed as a stretch-push molded body, that is to say produced in a stretch-push process. Stretch-push processes are known as such (cf. Lueger "Lexicon der Technik", Volume 8, "Lexicon of Manufacturing Technology and Working Machines", DVA, Stuttgart 1967, page 142, left column) and lead to a particularly high strain hardening of the material. With such a method, the desired different wall thicknesses of the inner separating body can be realized very easily in different areas by changing the position of the pressure rollers in relation to the pressure form, in particular the angular position. A stretch-push method for the production of at least the inner separating body is therefore particularly suitable for the production of a transport barrel according to the invention. Moreover, the tool costs are considerably lower compared to the tool costs for deep drawing.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbei­spiel darstellenden Zeichnung nochmals erläutert. In der Zeichnung zeigt

  • Fig. 1 im Vertikalschnitt ein Ausführungsbeispiel eines erfindungsge­mäßen Transportfasses und
  • Fig. 2 vergrößert, schematisch, im Vertikalschnitt den Innentrennkörper für ein Transportfaß nach Fig. 1.
In the following, the invention will be explained again with reference to a drawing that shows only one exemplary embodiment. In the drawing shows
  • Fig. 1 in vertical section an embodiment of a transport barrel according to the invention and
  • 2 enlarged, schematic, in vertical section, the inner separating body for a transport barrel according to FIG. 1st

Bei dem in Fig. 1 in einem bevorzugten Ausführungsbeispiel dargestellten Transportfaß für Flüssigkeiten handelt es sich konkret um ein Transport­faß für Bier, das als sogenannter Gaskammer-Keg ausgeführt ist. Dieses Transportfaß weist zunächst einen Faßkörper 1 auf, der aus einem Ober­teil 2 und einem Unterteil 3 besteht. Nicht dargestellt ist in Fig. 1, daß der Faßkörper 1 noch einen Außenmantel aus Kunststoff, vorzugsweise aus einem zähelastischen Hartschaumstoff aufweisen kann, was insbesondere bei Herstellung des Faßkörpers 1 aus Edelstahl zweckmäßig ist. Dann kann näm­lich die Wanddicke von Oberteil 2 und Unterteil 3 des Faßkörpers 1 für den Edelstahl-Innenkörper sehr gering sein. Das alles ist aber für sich bei Transportfässern der in Rede stehenden Art bekannt.The transport barrel for liquids shown in a preferred embodiment in FIG. 1 is specifically a transport barrel for beer, which is designed as a so-called gas chamber keg. This transport barrel initially has a barrel body 1, which consists of an upper part 2 and a lower part 3. Not shown in Fig. 1 that the barrel body 1 still has an outer jacket made of plastic, preferably can have a tough elastic rigid foam, which is particularly useful when manufacturing the barrel body 1 from stainless steel. Then the wall thickness of the upper part 2 and lower part 3 of the barrel body 1 for the stainless steel inner body can be very small. All of this is known for transport drums of the type in question.

An dem in Fig. 1 schematisch dargestellten Transportfaß erkennt man am Faßkörper 1 einen oberen und einen unteren Stapelrand 4, angeschweißt am Oberteil 2 bzw. am Unterteil 3, eine Zapfbuchse 5 am Oberteil 2 in der Mitte und ein Druckventil 5 am Oberteil 2 seitlich neben der Zapfbuchse 5. Auch dies alles ist für sich bei einem Transportfaß der in Rede stehenden Art bekannt. Im Faßkörper 1 ist ein Innentrennkörper 7 angeordnet, der im dargestellten und bevorzugten Ausführungsbeispiel wie der Faßkörper 1 ins­gesamt zu einer Hauptachse symmetrisch, vorzugsweise rotationssymmetrisch, ist und in einer Ebene senkrecht zur Hauptachse unterschiedliche Durchmes­ser aufweist. Der Innentrennkörper 7 ist mit dem Faßkörper 1 druckfest ver­bunden und unterteilt das Innere des Faßkörpers 1 in einen Flüssigkeits­raum 8 und einen Druckmittelraum 9. Im Flüssigkeitsraum 8 befindet sich im Betrieb die Flüssigkeit, insbesondere das Bier, im Druckmittelraum 9 be­findet sich im Betrieb ein Druckmittel, insbesondere CO₂, das als Förder­mittel für die Flüssigkeit aus dem Flüssigkeitsraum 8 heraus dient.1, an upper and a lower stacking edge 4 can be seen on the barrel body 1, welded to the upper part 2 or to the lower part 3, a tap bushing 5 on the upper part 2 in the middle and a pressure valve 5 on the upper part 2 on the side the tap sleeve 5. All of this is known for a transport barrel of the type in question. An inner separating body 7 is arranged in the barrel body 1, which in the illustrated and preferred exemplary embodiment, like the barrel body 1, is symmetrical, preferably rotationally symmetrical, about a main axis and has different diameters in a plane perpendicular to the main axis. The inner separating body 7 is pressure-tightly connected to the barrel body 1 and divides the interior of the barrel body 1 into a liquid space 8 and a pressure medium space 9. The liquid, in particular the beer, is in operation in the liquid space 8, and a pressure medium is in operation in the pressure medium space 9. in particular CO₂, which serves as a conveyor for the liquid from the liquid space 8 out.

Wie Fig. 1 erkennen läßt, hat der Innentrennkörper 7 im hier dargestellten und bevorzugten Ausführungsbeispiel eine kegelstumpfförmige Gestalt, mit leicht konkav nach innen gewölbter Mantelfläche. Hier sind natürlich ande­re Querschnittsformen in gleicher Weise denkbar.As can be seen in FIG. 1, the inner separating body 7 in the preferred exemplary embodiment shown here has a frustoconical shape, with a slightly concave inwardly curved outer surface. Other cross-sectional shapes are of course equally conceivable here.

Fig. 2 zeigt in Verbindung mit Fig. 1 deutlich, daß bei dem erfindungsge­mäßen Transportfaß die Wanddicke des Innentrennkörpers 7 in Abhängigkeit vom Durchmesser des Innentrennkörpers 7 in der Ebene senkrecht zur Haupt­achse bestimmt ist, nämlich bei einem großen Durchmesser eine große Wand­dicke und bei einem kleinen Durchmesser eine kleine Wanddicke vorgesehen ist. Die Wanddicke des Innentrennkörpers 7 ist im hier dargestellten Aus­ führungsbeispiel im übrigen so bemessen, daß der Innentrennkörper 7 in allen Bereichen, unabhängig vom Durchmesser, etwa die gleiche Festigkeit aufweist. Die Größenverhältnisse sind in Fig. 2 nicht maßstabgerecht.Fig. 2 shows clearly in connection with Fig. 1 that in the transport drum according to the invention the wall thickness of the inner separating body 7 is determined depending on the diameter of the inner separating body 7 in the plane perpendicular to the main axis, namely with a large diameter a large wall thickness and with a small one Diameter a small wall thickness is provided. The wall thickness of the inner separating body 7 is in the From shown here leadership example dimensioned so that the inner separating body 7 has approximately the same strength in all areas, regardless of the diameter. The size relationships in Fig. 2 are not to scale.

Das in den Figuren dargestellte Transportfaß besteht aus Edelstahl. Wie im hier dargestellten Ausführungsbeispiel vorgesehen, ist bei einem aus Edel­stahl bestehenden Innentrennkörper 7 bei einem Durchmesser von 60 mm bis 100 mm, vorzugsweise von ca. 80 mm, eine Wanddicke von 0,4 mm bis 0,8 mm, vorzugsweise von ca. 0,6 mm, und bei einem Durchmesser von 360 mm bis 420 mm, vorzugsweise von ca. 390 mm, eine Wanddicke von 1,8 mm bis 2,4 mm, vorzugs­weise von ca. 2,1 mm, vorgesehen. Im oberen Bereich 10 in Fig. 2 weist der Innentrennkörper 7 konkret bei einem Durchmesser von ca. 80 mm eine Wand­dicke von ca. 0,6 mm auf, während im unteren Bereich 11 bei einem Durchmes­ser von ca. 390 mm eine Wanddicke von ca. 2,1 mm gegeben ist. Bei einem nach herkömmlichen Maßstäben hergestellten Transportfaß hätte der Innen­trennkörper 7 überall eine Wanddicke von ca. 2,1 mm. Durch die verringerte Wanddicke des Innentrennkörpers 7 in den Bereichen kleineren Durchmessers ergibt sich im konkret erläuterten Ausführungsbeispiel eine Materialein­sparung und Gewichtseinsparung von ca. 3 bis 4 kp.The transport barrel shown in the figures is made of stainless steel. As provided in the exemplary embodiment shown here, an inner separating body 7 made of stainless steel with a diameter of 60 mm to 100 mm, preferably of approximately 80 mm, has a wall thickness of 0.4 mm to 0.8 mm, preferably of approximately 0 , 6 mm, and with a diameter of 360 mm to 420 mm, preferably of approximately 390 mm, a wall thickness of 1.8 mm to 2.4 mm, preferably of approximately 2.1 mm, is provided. In the upper region 10 in FIG. 2, the inner separating body 7 has a wall thickness of approximately 0.6 mm with a diameter of approximately 80 mm, while in the lower region 11 with a diameter of approximately 390 mm a wall thickness of approximately 2.1 mm is given. In the case of a transport drum manufactured according to conventional standards, the inner separating body 7 would have a wall thickness of approximately 2.1 mm everywhere. The reduced wall thickness of the inner separating body 7 in the areas of smaller diameter results in a material saving and weight saving of approximately 3 to 4 kg in the specifically explained exemplary embodiment.

Die Figuren zeigen insoweit noch ein besonders bevorzugtes Ausführungsbei­spiel der Erfindung, bei dem eine eigenständige Lehre der Erfindung konkre­tisiert ist, als der Innentrennkörper 7 als Streck-Drück-Formkörper ausge­führt ist. Der Innentrennkörper 7 ist also in einem Streck-Drück-Verfahren hergestellt, was einerseits eine besonders einfache unterschiedliche Be­messung der Wanddicke erlaubt, andererseits zu einer besonders hohen Kalt­verfestigung des Materials führt und schließlich von den Kosten her rela­tiv günstig ist.In this respect, the figures show a particularly preferred exemplary embodiment of the invention, in which an independent teaching of the invention is concretized when the inner separating body 7 is designed as a stretch-push molded body. The inner separating body 7 is thus produced in a stretch-push process, which on the one hand allows a particularly simple different dimensioning of the wall thickness, on the other hand leads to a particularly high strain hardening of the material and is ultimately relatively inexpensive.

Claims (4)

1. Transportfaß für Flüssigkeiten, insbesondere für Bier, mit einem Faß­körper und einem im Faßkörper angeordneten zu einer Hauptachse symme­trischen, vorzugsweise rotationssymmetrischen, in einer Ebene senkrecht zur Hauptachse unterschiedliche Durchmesser aufweisenden Innentrennkörper, wobei der Innentrennkörper mit dem Faßkörper druckfest verbunden ist und durch den Innentrennkörper das Innere des Faßkörpers in einem Flüssigkeits­raum und einen Druckmittelraum unterteilt ist, dadurch ge­kennzeichnet, daß die Wanddicke des Innentrennkörpers (7) in Abhängigkeit vom Durchmesser des Innentrennkörpers (7) in der Ebene senk­recht zur Hauptachse bestimmt ist, nämlich bei einem großen Durchmesser eine große Wanddicke und bei einem kleinen Durchmesser eine kleine Wand­dicke vorgesehen ist.1.Transport barrel for liquids, in particular for beer, with a barrel body and an inner separating body arranged in the barrel body symmetrical, preferably rotationally symmetrical, preferably with rotational symmetry and having different diameters in a plane perpendicular to the main axis, the inner separating body being pressure-tightly connected to the barrel body and by the inner separating body the inside of the barrel body is subdivided into a liquid space and a pressure medium space, characterized in that the wall thickness of the inner separating body (7) is determined in the plane perpendicular to the main axis depending on the diameter of the inner separating body (7), namely a large wall thickness for a large diameter and a small wall thickness is provided for a small diameter. 2. Transportfaß nach Anspruch 1, dadurch gekennzeichnet, daß die Wanddicke des Innentrennkörpers (7) so bemessen ist, daß der Innentrennkörper (7) in allen Bereichen, unabhängig vom Durchmesser, etwa die gleiche Festigkeit aufweist.2. Transport barrel according to claim 1, characterized in that the wall thickness of the inner separating body (7) is dimensioned such that the inner separating body (7) has approximately the same strength in all areas, regardless of the diameter. 3. Transportfaß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei einem aus Edelstahl bestehenden Innentrennkörper (7) bei einem Durchmesser von 60 mm bis 100 mm, vorzugsweise von ca. 80 mm, eine Wanddicke von 0,4 mm bis 0,8 mm, vorzugsweise von ca. 0,6 mm, und bei einem Durchmesser von 360 mm bis 420 mm, vorzugsweise von ca. 390 mm, eine Wanddicke von 1,8 mm bis 2,4 mm, vorzugsweise von ca. 2,1 mm, vorgesehen ist.3. Transport barrel according to claim 1 or 2, characterized in that in the case of an inner separating body (7) made of stainless steel with a diameter of 60 mm to 100 mm, preferably of approximately 80 mm, a wall thickness of 0.4 mm to 0.8 mm, preferably of approximately 0.6 mm, and with a diameter of 360 mm to 420 mm, preferably of approximately 390 mm, a wall thickness of 1.8 mm to 2.4 mm, preferably of approximately 2.1 mm , is provided. 4. Transportfaß für Flüssigkeiten, insbesondere für Bier, mit einem Faß­körper und einem im Faßkörper angeordneten, zu einer Hauptachse symme­trischen, vorzugsweise rotationssymmetrischen, in einer Ebene senkrecht zur Hauptachse unterschiedliche Durchmesser aufweisenden Innentrennkörper, wobei der Innentrennkörper mit dem Faßkörper druckfest verbunden ist und durch den Innentrennkörper das Innere des Faßkörpers in einen Flüssigkeits­ raum und einen Druckmittelraum unterteilt ist, insbesondere nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Innentrennkörper (7) als Streck-Drück-Formkörper ausgeführt, also im Streck-Drück-Verfahren herge­stellt ist.4.Transport barrel for liquids, in particular for beer, with a barrel body and an inner separating body arranged in the barrel body, symmetrical to a main axis, preferably rotationally symmetrical, having different diameters in a plane perpendicular to the main axis, the inner separating body being connected pressure-tight to the barrel body and by the Internal separator the inside of the barrel body into a liquid space and a pressure medium space is subdivided, in particular according to one of claims 1 to 3, characterized in that the inner separating body (7) is designed as a stretch-push molded body, that is to say is produced in the stretch-push process.
EP86106300A 1986-03-27 1986-05-07 Transport barrel for liquids, especially for beer Withdrawn EP0244502A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8608406U DE8608406U1 (en) 1986-03-27 1986-03-27 Transport barrel for liquids, especially for beer
EP86106300A EP0244502A1 (en) 1986-03-27 1986-05-07 Transport barrel for liquids, especially for beer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8608406U DE8608406U1 (en) 1986-03-27 1986-03-27 Transport barrel for liquids, especially for beer
EP86106300A EP0244502A1 (en) 1986-03-27 1986-05-07 Transport barrel for liquids, especially for beer

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EP0244502A1 true EP0244502A1 (en) 1987-11-11

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2133037A1 (en) * 1996-02-22 1999-08-16 Navarro Perez Javier Improved gas canister
EP1293476A2 (en) * 2001-09-14 2003-03-19 SCHÄFER WERKE GmbH Beverage dispensing device
WO2008080603A1 (en) * 2006-12-29 2008-07-10 SCHäFER WERKE GMBH Beverage container, particularly in the style of a barrel
WO2008089923A2 (en) * 2007-01-25 2008-07-31 SCHäFER WERKE GMBH Beverage pouring device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540542A1 (en) 1995-10-31 1997-05-15 Weber Hans Joachim Liquid containers, such as cans, party kegs or containers

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE823279C (en) * 1949-07-19 1951-12-03 Rudolf Fissler Metal barrel and process for its manufacture
GB1007594A (en) * 1961-03-24 1965-10-13 Grundy Teddington Ltd Improvements in metal casks and like containers and methods of making same
GB1270285A (en) * 1968-06-10 1972-04-12 Reynolds Metals Co A container for storing and dispensing liquids under gas pressure
DE2703362A1 (en) * 1976-01-27 1977-07-28 Murgue Seigle CONTAINER WITH MULTIPLE DIVISIONS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE823279C (en) * 1949-07-19 1951-12-03 Rudolf Fissler Metal barrel and process for its manufacture
GB1007594A (en) * 1961-03-24 1965-10-13 Grundy Teddington Ltd Improvements in metal casks and like containers and methods of making same
GB1270285A (en) * 1968-06-10 1972-04-12 Reynolds Metals Co A container for storing and dispensing liquids under gas pressure
DE2703362A1 (en) * 1976-01-27 1977-07-28 Murgue Seigle CONTAINER WITH MULTIPLE DIVISIONS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2133037A1 (en) * 1996-02-22 1999-08-16 Navarro Perez Javier Improved gas canister
EP1293476A2 (en) * 2001-09-14 2003-03-19 SCHÄFER WERKE GmbH Beverage dispensing device
EP1293476A3 (en) * 2001-09-14 2003-07-02 SCHÄFER WERKE GmbH Beverage dispensing device
WO2008080603A1 (en) * 2006-12-29 2008-07-10 SCHäFER WERKE GMBH Beverage container, particularly in the style of a barrel
WO2008089923A2 (en) * 2007-01-25 2008-07-31 SCHäFER WERKE GMBH Beverage pouring device
WO2008089923A3 (en) * 2007-01-25 2008-10-09 Schaefer Werke Gmbh Beverage pouring device

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