EP0512152A1 - Safety device for beverage cask - Google Patents

Safety device for beverage cask Download PDF

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Publication number
EP0512152A1
EP0512152A1 EP91111721A EP91111721A EP0512152A1 EP 0512152 A1 EP0512152 A1 EP 0512152A1 EP 91111721 A EP91111721 A EP 91111721A EP 91111721 A EP91111721 A EP 91111721A EP 0512152 A1 EP0512152 A1 EP 0512152A1
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EP
European Patent Office
Prior art keywords
safety device
locking element
outlet opening
edge
window
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.)
Granted
Application number
EP91111721A
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German (de)
French (fr)
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EP0512152B1 (en
Inventor
Rolf Jaeger
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.)
D S I Josef Breitwisch and Co GmbH
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D S I Josef Breitwisch and Co GmbH
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Application filed by D S I Josef Breitwisch and Co GmbH filed Critical D S I Josef Breitwisch and Co GmbH
Publication of EP0512152A1 publication Critical patent/EP0512152A1/en
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    • 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
    • B67D1/0838—Keg connection means combined with valves comprising means for preventing blow-out on disassembly of the spear valve

Definitions

  • the invention relates to a safety device for use in an outlet opening of a pressurized beverage keg, in particular a beer keg, with a housing, a central tube, a bayonet plate which engages with outer projections in the L-slots of the housing part, further with a compression spring which is supported on the one hand on the bayonet plate and on the other hand on a sealing device.
  • Various types of safety devices of the aforementioned type are known in practice. They serve to seal a pressurized beverage keg, in particular a beer keg, after filling and during transport at the outlet opening and to be connected to a dispensing head when the beverage is subsequently filled.
  • the safety devices are inserted into the respective outlet opening of the beverage keg.
  • the part of the beverage keg simply referred to here as the outlet opening generally has a pipe socket which partially projects into the beverage keg and is provided with an internal thread at the outer upper end, so that the safety device can be screwed tight after use by means of an external thread.
  • the beverage keg is then subjected to further treatment processes, in particular pressure measurement for leaks, cleaning, etc., until the beverage keg is finally filled and closed at the inlet opening.
  • this embodiment has the disadvantage that the safety device with its individual parts must be used in the disassembled state because the dimension of the bayonet plate is larger than the diameter of the outlet opening or the said pipe socket because of the fixed hook.
  • the bayonet plate must therefore first be individually inclined through the outlet opening on the inside and pivoted into the correct position, after which the actual assembly of the safety device must take place with the bayonet catch, etc.
  • these manipulations are extraordinarily cumbersome and time-consuming in view of the large number of barrels that arise.
  • the invention is therefore based on the object of providing a safety device which, in the assembled state, can be brought into the operating position by simply pressing it into the outlet opening and then screwing it tight.
  • At least one movable locking element which is designed and arranged such that it is opposite the edge of the outlet opening during the operation can dodge and reaches behind the inner edge of the outlet opening in the operating position.
  • FIGS 1, 4 and 5 show an embodiment of a safety device for use in an outlet opening, not shown in the drawing, of a pressurized beverage keg, in particular a beer keg.
  • the device has a housing 1 with an external thread 2, which, as described, is provided for screwing in and final tightening in an internal thread in the outlet opening.
  • the housing part 5 is reduced in diameter, namely to adapt to the known, not shown pipe socket at the outlet opening of the beverage barrel. To seal this against a sealing ring 6.
  • openings 7 are also provided for the passage of compressed gas, in particular Co2, when a tap is installed.
  • the bayonet plate is provided with three outer projections 12, 13 and 14 distributed around the circumference.
  • the safety device also has a central tube 15, which extends in a known manner with its lower end close to the bottom of the beverage barrel.
  • the upper tube part 16 is somewhat tapered relative to the lower one, ie it is kept smaller in diameter, but it is made in one piece with the remaining part of the central tube.
  • An end plate 18 is fastened to the upper end of the central tube 15. Furthermore, the upper end of the tubular part 16 is surrounded by a sealing ring 19 and a support ring 20.
  • a compression spring 21 in the form of a helical spring, which is supported on the one hand, namely at the lower end on the bayonet plate 11 and on the other hand with the upper end on the support ring 20 and thus on the sealing ring 19 and the end plate 18 of this entire sealing device.
  • the safety device has a movable locking element 22, which is designed and arranged such that it can evade during the deployment process with respect to the not shown edge of the outlet opening or the pipe socket at the outlet opening and then in the operating position behind the inner one Edge of the outlet opening engages.
  • the locking element 22 is preferably held between a part of the bayonet plate 11 and the compression springs 21, and in the operating position it projects outward beyond the housing part 5. It is essential that the locking element is movable in any direction. For example, it could also be moved within the plane that runs perpendicular to the image plane of FIG. 1 by means of a guide or the like. In the preferred exemplary embodiment according to FIG.
  • the locking element 22 is pivotally mounted at the inner end, so that it can pivot upwards through an angular range 23 into the position shown in broken lines, ie in a position in which the locking element is located completely within the lower housing part 5 is located and does not prevent when the safety device is pressed into the outlet opening of the beverage barrel.
  • the pivoting movement is caused by the fact that the outer edge of the locking element lies against the relevant inner wall of the outlet opening, so that the locking element is automatically pivoted upwards.
  • Part of the locking element 22 projects through this window to the outside, the lower window edge 25 and / or the bayonet plate 11 acting as a stop for the locking position.
  • the locking element 22 in the embodiment according to FIG. 1 it is guided in the operating position in a recess 34 in the bayonet plate 11, the surface of the recess being flush with the bottom edge 25 of the window, that is to say the height corresponds.
  • a particularly simple embodiment of the locking element is shown in perspective in Figure 2, namely it consists of a rectangular web 26 with an angled part 27 which engages behind the inner edge or in a recess of the bayonet plate 11, so that the locking element also in the radial direction and is simultaneously held under the pressure of the compression spring 21.
  • the locking element can also have a different design.
  • it can consist of a rectangular web 28 with a T-shaped widening 29 at the inner end.
  • a spherical inner end of the locking element can also serve the same purpose.
  • the window 24 described is closed on all sides.
  • FIGS. 6 and 7 essentially corresponds to that according to FIGS. 4 and 5.
  • the same reference numerals have therefore been used for the same or equivalent parts.
  • the window 30 is partially open downwards, ie next to one end of the lower window edge 33, which runs in the tangential direction and again serves as a stop surface for the locking element 22, an axially downwardly extending open slot 32 is provided in the lower housing part 5.
  • the width of this slot 32 corresponds approximately to the width of the locking element 22, so that it can be guided down through the slot.
  • the lower window edge 33 which acts as a stop in the locking position, has a greater width than the tangential bayonet slots 10, so that the locking element is still held even after the bayonet lock has been opened and can only emerge through the axial slot part 32 of the window opening 31 when it is turned further.
  • the invention which has been explained in detail above, essentially depends on the fact that the entire safety device can be inserted in a completely assembled form through the outlet opening of the beverage barrel, the subsequent disassembly is also that is, the safety device can be removed from the opening of the beverage barrel in a simple manner.

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  • Devices For Dispensing Beverages (AREA)
  • Tea And Coffee (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Confectionery (AREA)
  • Cookers (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

Safety devices exist for insertion into an outlet opening of a pressurised beverage cask, in particular a beer cask, having a housing (5), a central tube (15), a bayonet plate (11), which engages with outer projections in L-slits of a housing part, and also having a compression spring (21), which is supported on the one hand against the bayonet plate and on the other hand against a sealing device (20). In order to make the safety device possible in completely fitted-together form by simple pushing into the outlet opening of the beverage cask and by simple screwing-in, it is proposed to provide at least one movable locking element (22) which is designed and arranged in such a way that, during the insertion operation, it can give way with respect to the edge of the outlet opening and, in the operating position, engages behind the inner edge of the outlet opening. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Sicherheitsvorrichtung für den Einsatz in einer Auslaßöffnung eines unter Druck stehenden Getränkefasses, insbesondere Bierfasses, mit einem Gehäuse, einem Zentralrohr, einer Bajonettplatte, welche mit äußeren Vorsprüngen in L-Schlitze des Gehäuseteiles eingreift, ferner mit einer Druckfeder, die sich einerseits an der Bajonettplatte und andererseits an einer Dichtungsvorrichtung abstützt.The invention relates to a safety device for use in an outlet opening of a pressurized beverage keg, in particular a beer keg, with a housing, a central tube, a bayonet plate which engages with outer projections in the L-slots of the housing part, further with a compression spring which is supported on the one hand on the bayonet plate and on the other hand on a sealing device.

Sicherheitsvorrichtungen der vorgenannten Art sind in der Praxis in verschiedenen Ausführungen bekannt. Sie dienen dazu, ein unter Druck stehendes Getränkefaß, insbesondere ein Bierfaß, nach dem Füllen und während des Transports an der Auslaßöffnung abzudichten und beim späteren Abfüllen des Getränkes mit einem Zapfkopf verbunden zu werden. Bei der fabrikmäßigen Vorbereitung der Getränkefässer werden die Sicherheitsvorrichtungen in die jeweilige Auslaßöffnung des Getränkefasses eingesetzt. Der hier einfach als Auslaßöffnung bezeichnete Teil des Getränkefasses besitzt im allgemeinen einen Rohrstutzen, der zum Teil in das Getränkefaß hineinragt und nach dem äußeren oberen Ende zu mit einem Innengewinde versehen ist, so daß die Sicherheitsvorrichtung nach dem Einsatz mittels eines Außengewindes festgeschraubt werden kann. Sodann wird das Getränkefaß weiteren Behandlungsvorgängen unterworfen, insbesondere Druckmessung auf Dichtigkeit, Reinigung usw. bis letztlich das Getränkefaß gefüllt und an der Einlaßöffnung verschlossen wird.Various types of safety devices of the aforementioned type are known in practice. They serve to seal a pressurized beverage keg, in particular a beer keg, after filling and during transport at the outlet opening and to be connected to a dispensing head when the beverage is subsequently filled. During the factory preparation of the beverage kegs, the safety devices are inserted into the respective outlet opening of the beverage keg. The part of the beverage keg simply referred to here as the outlet opening generally has a pipe socket which partially projects into the beverage keg and is provided with an internal thread at the outer upper end, so that the safety device can be screwed tight after use by means of an external thread. The beverage keg is then subjected to further treatment processes, in particular pressure measurement for leaks, cleaning, etc., until the beverage keg is finally filled and closed at the inlet opening.

In der Praxis haben sich nun zahlreiche Unfälle ereignet, und zwar meist durch unsachgemäße Behandlung der Sicherheitsvorrichtung. Wenn man nämlich die bisher allgemein üblichen Vorrichtungen herausgeschraubt hat, so hat der Innendruck im Getränkerfaß bewirkt, daß die gesamte Vorrichtung unter hoher Geschwindigkeit nach oben hinwegfliegt und dabei eine große Gefahr für die bedienende Person darstellt. Um dieser Gefahr vorzubeugen, hat man bereits vorgeschlagen, die früher allgemein bekannten Vorrichtungen dadurch als Sicherheitsvorrichtungen auszubilden, daß man an der Bajonettplatte einstückig mit dieser einen feststehenden Haken vorgesehen hat, der in Betriebsstellung unter den unteren Rand des besagten Rohrstutzens an der Auslaßöffnung greift, so daß die Sicherheitsvorrichtung selbst beim unsachgemäßen Herausschrauben aus der Auslaßöffnung nicht nach oben hin wegfliegen kann. Diese Ausgestaltung hat aber den Nachteil, daß die Sicherheitsvorrichtung mit ihren Einzelteilen in demontiertem Zustand eingesetzt werden muß, weil die Abmessung der Bajonettplatte wegen des feststehenden Hakens größer als der Durchmesser der Auslaßöffnung bzw. des besagten Rohrstutzens ist. Die Bajonettplatte muß daher zunächst einzeln in Schrägstellung durch die Auslaßöffnung auf die Innenseite gebracht und in die richtige Lage geschwenkt werden, wonach dann der eigentliche Zusammenbau der Sicherheitsvorrichtung mit Einrasten des Bajonettverschlusses usw. erfolgen muß. Bei der serienmäßigen Behandlung der Getränkefässer in der Getränkeindustrie sind diese Manipulationen in Anbetracht der großen Anzahl der anfallenden Fässer außerordentlich umständlich und zeitraubend.In practice, numerous accidents have now occurred, mostly due to improper handling of the safety device. If you have unscrewed the previously common devices, the internal pressure in the beverage keg has the effect that the entire device flies upwards at high speed and poses a great danger to the operator. In order to prevent this danger, it has already been proposed to design the previously generally known devices as safety devices in that a fixed hook has been provided on the bayonet plate in one piece with the latter, which in the operating position engages under the lower edge of said pipe socket at the outlet opening, so that the safety device cannot fly upwards even when improperly unscrewed from the outlet opening. However, this embodiment has the disadvantage that the safety device with its individual parts must be used in the disassembled state because the dimension of the bayonet plate is larger than the diameter of the outlet opening or the said pipe socket because of the fixed hook. The bayonet plate must therefore first be individually inclined through the outlet opening on the inside and pivoted into the correct position, after which the actual assembly of the safety device must take place with the bayonet catch, etc. In the case of the standard treatment of beverage barrels in the beverage industry, these manipulations are extraordinarily cumbersome and time-consuming in view of the large number of barrels that arise.

Der Erfindung liegt daher die Aufgabe zu Grunde, eine Sicherheitsvorrichtung zu schaffen, die im zusammengebauten Zustand durch einfaches Eindrücken in die Auslaßöffnung und anschließendes Festschrauben in Betriebsstellung gebracht werden kann.The invention is therefore based on the object of providing a safety device which, in the assembled state, can be brought into the operating position by simply pressing it into the outlet opening and then screwing it tight.

Die gestellte Aufgabe wird erfindungsgemäß erreicht durch mindestens ein bewegliches Verriegelungselement, welches derart ausgebildet und angeordnet ist, daß es beim Einsatzvorgang gegenüber dem Rand der Auslaßöffnung ausweichen kann und in Betriebsstellung hinter den inneren Rand der Auslaßöffnung greift.
Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.The object is achieved according to the invention by at least one movable locking element which is designed and arranged such that it is opposite the edge of the outlet opening during the operation can dodge and reaches behind the inner edge of the outlet opening in the operating position.
Advantageous embodiments of the invention result from the subclaims.

In der Zeichnung sind Ausführungsbeispiele der Erfindung im Schema dargestellt, und zwar zeigen:

  • Figur 1 einen mittleren Vertikalschnitt durch eine Sicherheitsvorrichtung,
  • Figur 2 ein Ausführungsbeispiel eines Verriegelungselementes in perspektivischer Ansicht,
  • Figur 3 ein anderes Ausführungsbeispiel eines Verriegelungselementes ebenfalls in Perspektive,
  • Figur 4 eine Seitenansicht auf die Sicherheitsvorrichtung gemäß Figur 1,
  • Figur 5 einen Horizontalschnitt gemäß Schnittlinie V-V in Figur 4,
  • Figur 6 eine Sicherheitsvorrichtung entsprechend Figur 4, jedoch mit einer Detailänderung und
  • Figur 7 einen Horizontalschnitt gemäß Schnittlinie VII-VII in Figur 6.
In the drawing, exemplary embodiments of the invention are shown in the diagram, namely:
  • FIG. 1 shows a middle vertical section through a safety device,
  • FIG. 2 shows an exemplary embodiment of a locking element in a perspective view,
  • FIG. 3 another embodiment of a locking element, also in perspective,
  • FIG. 4 shows a side view of the safety device according to FIG. 1,
  • FIG. 5 shows a horizontal section along section line VV in FIG. 4,
  • Figure 6 shows a safety device according to Figure 4, but with a change in detail and
  • 7 shows a horizontal section along section line VII-VII in FIG. 6.

Die Figuren 1, 4 und 5 zeigen ein Ausführungsbeispiel einer Sicherheitsvorrichtung für den Einsatz in eine zeichnerisch nicht dargestellte Auslaßöffnung eines unter Druck stehenden Getränkefasses, insbesondere Bierfasses. Die Vorrichtung besitzt ein Gehäuse 1 mit einem Außengewinde 2, welches, wie beschrieben, zum Einschrauben und endgültigen Festschrauben in einem Innengewinde in der Auslaßöffnung versehen ist. Ferner ist am oberen Ende ein Außenflansch 3 mit einer Abschrägung 4 oder einer Abrundung am Rand einstückig mit dem oberen Ende des Gehäuses 1 vorgesehen. Dieser Außenflansch 3 dient einmal zum Einschrauben der Sicherheitsvorrichtung und zum anderen zur Verbindung mit einem bekannten, zeichnerisch nicht dargestellten Schankhahn. Nach unten hin ist das Gehäuseteil 5 im Durchmesser verringert, und zwar zur Anpassung an den an sich bekannten nicht gezeichneten Rohrstutzen an der Auslaßöffnung des Getränkefasses. Zur Abdichtung diesem gegenüber dient ein Dichtungsring 6. In dem unteren Gehäuseteil 5 sind ferner Öffnungen 7 für den Durchtritt von Druckgas, insbesondere Co₂ vorgesehen, wenn ein Zapfhahn installiert ist. Nach dem unteren Ende des Gehäuseteiles 5 hin befinden sich drei nach unten öffnende L-Schlitze 8 mit axialen Schlitzteilen 9 und tangentialen Schlitzteilen 10, die zusammen mit einer Bajonettplatte 11 einen Bajonettverschluß bilden. Zu diesem Zweck ist die Bajonettplatte mit drei am Umfang verteilten äußeren Vorsprüngen 12, 13 und 14 versehen.Figures 1, 4 and 5 show an embodiment of a safety device for use in an outlet opening, not shown in the drawing, of a pressurized beverage keg, in particular a beer keg. The device has a housing 1 with an external thread 2, which, as described, is provided for screwing in and final tightening in an internal thread in the outlet opening. There is also an outer flange 3 at the upper end provided with a chamfer 4 or a rounding on the edge in one piece with the upper end of the housing 1. This outer flange 3 is used on the one hand for screwing in the safety device and on the other hand for connection to a known tap not shown in the drawing. At the bottom, the housing part 5 is reduced in diameter, namely to adapt to the known, not shown pipe socket at the outlet opening of the beverage barrel. To seal this against a sealing ring 6. In the lower housing part 5, openings 7 are also provided for the passage of compressed gas, in particular Co₂, when a tap is installed. After the lower end of the housing part 5 there are three downwardly opening L-slots 8 with axial slot parts 9 and tangential slot parts 10, which together with a bayonet plate 11 form a bayonet catch. For this purpose, the bayonet plate is provided with three outer projections 12, 13 and 14 distributed around the circumference.

Die Sicherheitsvorrichtung besitzt ferner ein Zentralrohr 15, welches in bekannter Weise mit seinem unteren Ende bis nahe an den Boden des Getränkefasses reicht. Das obere Rohrteil 16 ist gegenüber dem unteren etwas verjüngt, d. h. im Durchmesser kleiner gehalten, es ist aber einstückig mit dem übrigen Teil des Zentralrohres gefertigt. In dem verjüngten Rohrteil 16 befinden sich Bohrungen 17. Am oberen Ende des Zentralrohres 15 ist eine Stirnplatte 18 befestigt. Ferner ist das obere Ende des Rohrteiles 16 von einem Dichtungsring 19 sowie einem Stützring 20 umgeben. Im Gehäuse befindet sich ferner eine Druckfeder 21 in Form einer Schraubenfeder, die sich einerseits, nämlich am unteren Ende an der Bajonettplatte 11 und andererseits mit dem obere Ende an dem Stützring 20 und damit an dem Dichtungsring 19 und der Stirnplatte 18 dieser gesamten Dichtungsvorrichtung abstützt.The safety device also has a central tube 15, which extends in a known manner with its lower end close to the bottom of the beverage barrel. The upper tube part 16 is somewhat tapered relative to the lower one, ie it is kept smaller in diameter, but it is made in one piece with the remaining part of the central tube. There are bores 17 in the tapered tube part 16. An end plate 18 is fastened to the upper end of the central tube 15. Furthermore, the upper end of the tubular part 16 is surrounded by a sealing ring 19 and a support ring 20. In the housing there is also a compression spring 21 in the form of a helical spring, which is supported on the one hand, namely at the lower end on the bayonet plate 11 and on the other hand with the upper end on the support ring 20 and thus on the sealing ring 19 and the end plate 18 of this entire sealing device.

Von wesentlicher Bedeutung ist nun, daß die Sicherheitsvorrichtung ein bewegliches Verriegelungselement 22 aufweist, welches derart ausgebildet und angeordnet ist, daß es während des Einsatzvorganges gegenüber dem nicht gezeichneten Rand der Auslaßöffnung bzw. dem Rohrstutzen an der Auslaßöffnung ausweichen kann und sodann in Betriebsstellung hinter den inneren Rand der Auslaßöffnung greift. Wie aus Figur 1 zu erkennen ist, ist das Verriegelungselement 22 vorzugsweise zwischen einem Teil der Bajonettplatte 11 und der Druckfedern 21 gehalten, und es ragt in Betriebsstellung nach außen über das Gehäuseteil 5 hinaus. Wesentlich ist dabei, daß das Verriegelungselement nach irgendeiner Richtung hin beweglich ist. Es könnte also beispielsweise auch innerhalb der Ebene, die senkrecht zu der Bildebene von Figur 1 verläuft, mittels einer Führung oder dergleichen bewegt werden. Bei dem bevorzugten Ausführungsbeispiel nach Figur 1 ist das Verriegelungselement 22 am inneren Ende schwenkbar gelagert, so daß es über einen Winkelbereich 23 nach oben hin in die strichpunktiert eingezeichnete Lage schwenken kann, d. h. in eine Lage, in der sich das Verriegelungselement vollständig innerhalb des unteren Gehäuseteiles 5 befindet und beim Eindrücken der Sicherheitsvorrichtung in die Auslaßöffnung des Getränkefasses nicht hindert. Die Schwenkbewegung wird dadurch verursacht, daß sich die äußere Kante des Verriegelungselementes an die betreffende Innenwand der Auslaßöffnung anlegt, so daß das Verriegelungselement automatisch nach oben hin geschwenkt wird. Sobald die Sicherheitsvorrichtung insgesamt soweit nach unten in die Auslaßöffnung eingeschoben und durch das Einschrauben auch noch nach unten hin bewegt wird bis das Verriegelungselement in den Bereich unterhalb des Randes des Rohrstutzens an der Auslaßöffnung gelangt, wird es durch den Druck der Druckfeder 21 wieder zurück in die ausgezogen gezeichnete Lage nach Figur 1 geschwenkt, so daß es mit dem äußeren Ende dann die Verriegelungsfunktion ausführen kann.It is now essential that the safety device has a movable locking element 22, which is designed and arranged such that it can evade during the deployment process with respect to the not shown edge of the outlet opening or the pipe socket at the outlet opening and then in the operating position behind the inner one Edge of the outlet opening engages. As can be seen from FIG. 1, the locking element 22 is preferably held between a part of the bayonet plate 11 and the compression springs 21, and in the operating position it projects outward beyond the housing part 5. It is essential that the locking element is movable in any direction. For example, it could also be moved within the plane that runs perpendicular to the image plane of FIG. 1 by means of a guide or the like. In the preferred exemplary embodiment according to FIG. 1, the locking element 22 is pivotally mounted at the inner end, so that it can pivot upwards through an angular range 23 into the position shown in broken lines, ie in a position in which the locking element is located completely within the lower housing part 5 is located and does not prevent when the safety device is pressed into the outlet opening of the beverage barrel. The pivoting movement is caused by the fact that the outer edge of the locking element lies against the relevant inner wall of the outlet opening, so that the locking element is automatically pivoted upwards. As soon as the safety device is pushed all the way down into the outlet opening and is also moved downward by screwing in until the locking element reaches the area below the edge of the pipe socket at the outlet opening, it is pushed back into the position by the pressure of the compression spring 21 drawn drawn position according to Figure 1 pivoted so that it can then perform the locking function with the outer end.

Vorteilhafterweise ist in dem unteren Gehäuseteil 5 ein genügend großes Fenster 24 vorgesehen, welches insbesondere in Figur 4 sichtbar ist. Das Verriegelungselement 22 ragt zu einem Teil durch dieses Fenster nach außen hindurch, wobei die Fensterunterkante 25 und / oder die Bajonettplatte 11 als Anschlag für die Verriegelungsstellung wirkt.A sufficiently large window 24, which is particularly visible in FIG. 4, is advantageously provided in the lower housing part 5. Part of the locking element 22 projects through this window to the outside, the lower window edge 25 and / or the bayonet plate 11 acting as a stop for the locking position.

Um eine noch bessere Führung des Verriegelungselementes 22 bei der Ausführung nach Figur 1 zu erhalten, ist dieses in Betriebsstellung in einer Vertiefung 34 der Bajonettplatte 11 geführt, wobei die Oberfläche der Vertiefung mit der Fensterunterkante 25 fluchtet, also in der Höhe übereinstimmt. Ein besonders einfaches Ausführungsbeispiel für das Verriegelungselement ist in Figur 2 perspektivisch dargestellt, und zwar besteht dieses aus einem Rechtecksteg 26 mit einem abgewinkelten Teil 27, welches hinter den inneren Rand oder in eine Ausnehmung der Bajonettplatte 11 greift, so daß das Verriegelungselement auch in radialer Richtung und gleichzeitig unter dem Druck der Druckfeder 21 gehalten ist. Das Verriegelungselement kann aber auch eine andere Ausbildung erhalten. So kann es beispielsweise nach Figur 3 aus einem Rechtecksteg 28 mit einer T-förmigen Verbreiterung 29 am inneren Ende bestehen. Der querverlaufende T-Balken 29, der entweder rechteckig oder auch zylindrisch ausgebildet sein kann, greift dann zweckmäßigerweise in Vertiefungen der Bajonettplatte ein. Dem gleichen Zweck kann auch ein kugelförmig ausgebildetes inneres Ende des Verriegelungselementes dienen. Nach dem Ausführungsbeispiel gemäß Figur 4 ist das beschriebene Fenster 24 allseitig geschlossen.In order to obtain an even better guidance of the locking element 22 in the embodiment according to FIG. 1, it is guided in the operating position in a recess 34 in the bayonet plate 11, the surface of the recess being flush with the bottom edge 25 of the window, that is to say the height corresponds. A particularly simple embodiment of the locking element is shown in perspective in Figure 2, namely it consists of a rectangular web 26 with an angled part 27 which engages behind the inner edge or in a recess of the bayonet plate 11, so that the locking element also in the radial direction and is simultaneously held under the pressure of the compression spring 21. The locking element can also have a different design. For example, according to FIG. 3, it can consist of a rectangular web 28 with a T-shaped widening 29 at the inner end. The transverse T-beam 29, which can be either rectangular or cylindrical, then expediently engages in depressions in the bayonet plate. A spherical inner end of the locking element can also serve the same purpose. According to the exemplary embodiment according to FIG. 4, the window 24 described is closed on all sides.

Das Ausführungsbeispiel nach den Figuren 6 und 7 stimmt im wesentlichen mit demjenigen nach den Figuren 4 und 5 überein. Es sind daher für gleiche oder gleichwirkende Teile die gleichen Bezugszeichen verwendet worden. Bei diesem letzteren Ausführungsbeispiel ist das Fenster 30 jedoch zum Teil nach unten geöffnet, d. h. neben einem Ende der Fensterunterkante 33, die in tangentialer Richtung verläuft und wieder als Anschlagfläche für das Verriegelungselement 22 dient, ist ein axial nach unten verlaufender offener Schlitz 32 in dem unteren Gehäuseteil 5 vorgesehen. Die Breite dieses Schlitzes 32 entspricht etwa der Breite des Verriegelungselementes 22, so daß dieses durch den Schlitz nach unten geführt werden kann. Die in Verriegelungsstellung als Anschlag wirkende Fensterunterkante 33 weist jedoch eine größere Breite auf als die tangentialen Bajonettschlitze 10, so daß das Verriegelungselement auch nach dem Öffenen des Bajonettverschlusses zunächst noch gehalten wird und erst bei Weiterdrehen durch den axialen Schlitzteil 32 der Fensteröffnung 31 austreten kann.The exemplary embodiment according to FIGS. 6 and 7 essentially corresponds to that according to FIGS. 4 and 5. The same reference numerals have therefore been used for the same or equivalent parts. In this latter embodiment, however, the window 30 is partially open downwards, ie next to one end of the lower window edge 33, which runs in the tangential direction and again serves as a stop surface for the locking element 22, an axially downwardly extending open slot 32 is provided in the lower housing part 5. The width of this slot 32 corresponds approximately to the width of the locking element 22, so that it can be guided down through the slot. The lower window edge 33, which acts as a stop in the locking position, has a greater width than the tangential bayonet slots 10, so that the locking element is still held even after the bayonet lock has been opened and can only emerge through the axial slot part 32 of the window opening 31 when it is turned further.

Bei dem oben erläuterten Ausführungsbeispiel ist das Prinzip nur eines Verriegelungselementes beschrieben worden. Im allgemeinen genügt auch ein einziges Verriegelungselement. Um die Sicherheit noch zu erhöhen, ist es jedoch von Vorteil, daß eine Mehrzahl von Verriegelungselementen in bezug auf den Gehäuseumfang verteilt vorgesehen ist. Besonders zweckmäßig sind drei Verriegelungselemente, die unter einem Winkel von je 120° zueinander angeordnet sind. Auf diese Weise ergibt sich gewissermaßen eine Dreipunktabstützung, wodurch eine eventuelle Schrägstellung der Sicherheitsvorrichtung im Gefahrenfalle vermieden wird. Aus konstruktiven Gründen ist es dabei vorteilhaft, die drei Verriegelungselemente jeweils etwa in der Mitte zwischen den äußeren Vorsprüngen der Bajonettplatte anzuordnen.In the exemplary embodiment explained above, the principle of only one locking element has been described. In general, a single locking element is also sufficient. To further increase security, however, it is advantageous that a plurality of locking elements are provided distributed with respect to the housing circumference. Three locking elements, which are arranged at an angle of 120 ° to one another, are particularly expedient. In this way, a three-point support results, so to speak, thereby avoiding any inclination of the safety device in the event of danger. For design reasons, it is advantageous to arrange the three locking elements approximately in the middle between the outer projections of the bayonet plate.

Während es bei der Erfindung, die oben ausführlich erläutert worden ist, im wesentlichen darauf ankommt, daß die gesamte Sicherheitsvorrichtung in vollständig zusammengesetzter Form durch die Auslaßöffnung des Getränkefasses eingesetzt werden kann, ist auch die spätere Demontage, d. h. das Herausnehmen der Sicherheitsvorrichtung aus der Öffnung des Getränkefasses, einfach durchzuführen.While the invention, which has been explained in detail above, essentially depends on the fact that the entire safety device can be inserted in a completely assembled form through the outlet opening of the beverage barrel, the subsequent disassembly is also that is, the safety device can be removed from the opening of the beverage barrel in a simple manner.

Claims (12)

Sicherheitsvorrichtung für den Einsatz in einer Auslaßöffnung eines unter Druck stehenden Getränkefasses, insbesondere Bierfasses, mit einem Gehäuse (1), einem Zentralrohr (15), einer Bajonettplatte (11), welche mit äußeren Vorsprüngen (12, 13, 14) in L-Schlitze (8) des Gehäuseteiles (5) eingreift, ferner mit einer Druckfeder (21), die sich einerseits an der Bajonettplatte (11) und andererseits an einer Dichtungsvorrichtung (18, 19, 20) abstützt, gekennzeichnet durch mindestens ein bewegliches Verriegelungselement (22), welches derart ausgebildet und angeordnet ist, daß es beim Einsatzvorgang gegenüber dem Rand der Auslaßöffnung ausweichen kann und in Betriebsstellung hinter den inneren Rand der Auslaßöffnung greift.Safety device for use in an outlet opening of a pressurized beverage keg, in particular a beer keg, with a housing (1), a central tube (15), a bayonet plate (11), which has outer projections (12, 13, 14) in L-slots (8) of the housing part (5) engages further with a compression spring (21), which is supported on the one hand on the bayonet plate (11) and on the other hand on a sealing device (18, 19, 20), characterized by at least one movable locking element (22) , which is designed and arranged in such a way that it can avoid the edge of the outlet opening during the operation and, in the operating position, engages behind the inner edge of the outlet opening. Sicherheitsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Verriegelungselement (22) zwischen der Bajonettplatte (11) und der Druckfeder (21) gehalten ist.Safety device according to claim 1, characterized in that the locking element (22) is held between the bayonet plate (11) and the compression spring (21). Sicherheitsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Verriegelungselement (22) am inneren Ende über einen Winkelbereich (23) schwenkbar gelagert ist.Safety device according to claim 1 or 2, characterized in that the locking element (22) is pivotally mounted at the inner end over an angular range (23). Sicherheitsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Verriegelungselement (22) zu einem Teil durch ein Fenster (24; 30) des Gehäuses (1) hindurchragt und die Fensterunterkante (25) und / oder die Bajonettplatte (11) als Anschlag für die Verriegelungsstellung wirkt.Security device according to one of the preceding claims, characterized in that the locking element (22) partly projects through a window (24; 30) of the housing (1) and the lower window edge (25) and / or the bayonet plate (11) as a stop for the locking position works. Sicherheitsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß das Verriegelungselement (22) in Betriebsstellung in einer Vertiefung (34) der Bajonettplatte (11) geführt ist und die Oberfläche der Vertiefung mit der Fensterunterkante (25) fluchtet.Safety device according to claim 4, characterized in that the locking element (22) in Operating position is guided in a recess (34) of the bayonet plate (11) and the surface of the recess is flush with the lower edge of the window (25). Sicherheitsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Verriegelungselement (22) aus einem Rechtecksteg (26) mit einem abgewinkelten Teil (27) besteht, welches hinter den inneren Rand oder einer Ausnehmung der Bajonettplatte (11) greift.Safety device according to one of the preceding claims, characterized in that the locking element (22) consists of a rectangular web (26) with an angled part (27) which engages behind the inner edge or a recess of the bayonet plate (11). Sicherheitsvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Verriegelungselement (22) aus einem Rechtecksteg (26) mit einer T-förmigen Verbreiterung (29) am inneren Ende besteht.Safety device according to one of claims 1 to 5, characterized in that the locking element (22) consists of a rectangular web (26) with a T-shaped widening (29) at the inner end. Sicherheitsvorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß das Fenster (24) allseitig geschlossen ist.Safety device according to one of claims 4 to 7, characterized in that the window (24) is closed on all sides. Sicherheitsvorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß das Fenster (30) neben einem Ende der Fensterunterkante (33) einen axial nach unten verlaufenden und offenen Schlitz (32) aufweist, welcher der Breite des Verriegelungselementes (22) entspricht, und daß die in Verriegelungsstellung als Anschlag wirkende Fensterunterkante (33) eine größere Breite als die tangentialen Bajonettschlitze (10) aufweist.Security device according to one of Claims 4 to 7, characterized in that the window (30) has, next to one end of the lower window edge (33), an axially downwardly extending and open slot (32) which corresponds to the width of the locking element (22), and that the window bottom edge (33) acting as a stop in the locking position has a greater width than the tangential bayonet slots (10). Sicherheitsvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Mehrzahl von Verriegelungselementen in Bezug auf den Gehäuseumfang verteilt vorgesehen ist.Safety device according to one of the preceding claims, characterized in that a plurality of locking elements are provided distributed with respect to the housing circumference. Sicherheitsvorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß drei Verriegelungselemente unter einem Winkel von je 120° zueinander angeordnet sind.Safety device according to claim 10, characterized in that three locking elements are arranged at an angle of 120 ° to each other. Sicherheitsvorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die drei Verriegelungselemente jeweils etwa in der Mitte zwischen den äußeren Vorsprüngen der Bajonettplatte angeordnet sind.Safety device according to claim 11, characterized in that the three locking elements are each arranged approximately in the middle between the outer projections of the bayonet plate.
EP91111721A 1991-05-04 1991-07-13 Safety device for beverage cask Expired - Lifetime EP0512152B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4114604 1991-05-04
DE4114604A DE4114604C2 (en) 1991-05-04 1991-05-04 Safety device for beverage keg

Publications (2)

Publication Number Publication Date
EP0512152A1 true EP0512152A1 (en) 1992-11-11
EP0512152B1 EP0512152B1 (en) 1995-10-11

Family

ID=6430989

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Application Number Title Priority Date Filing Date
EP91111721A Expired - Lifetime EP0512152B1 (en) 1991-05-04 1991-07-13 Safety device for beverage cask

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EP (1) EP0512152B1 (en)
AT (1) ATE128946T1 (en)
DE (2) DE4114604C2 (en)
DK (1) DK0512152T3 (en)
ES (1) ES2077732T3 (en)
GR (1) GR3017900T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016985A1 (en) * 1993-01-25 1994-08-04 D.S.I. Josef Breitwisch & Co. Gmbh Safety device for a valve insert in a beverage barrel
EP0887304A1 (en) * 1997-06-24 1998-12-30 Kirin Beer Kabushiki Kaisha Valve for pressure vessel
WO1999007632A1 (en) * 1997-08-11 1999-02-18 Spears Limited Keg and keg fitting for dispensing liquids under pressure
GB2446396A (en) * 2007-02-12 2008-08-13 Inbev Sa Valve assembly for a beer keg

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023117C1 (en) * 2000-05-11 2001-06-21 Dsi Getraenkearmaturen Gmbh Safety device for pressurized liquid container comprises housing with outer thread, riser pipe, seal, plate, compression spring, seating ring, strip and protuberances
US6367660B1 (en) * 2001-09-20 2002-04-09 Chang Kung-Chien Safety device for a double valve arrangement for beer keg

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Publication number Priority date Publication date Assignee Title
GB1003447A (en) * 1963-08-02 1965-09-02 Wilfrid Henry Calf Improvements in and relating to bushes
GB2209740A (en) * 1987-09-14 1989-05-24 Grundy Beverage cask extractor tube assembly
DE3844428A1 (en) * 1988-08-12 1990-02-15 Pineda Manuel Sanchez Anchoring, which cannot be broken open, for tapping pipes on beer containers
WO1991002694A1 (en) * 1989-08-24 1991-03-07 Micro Matic A/S A valve arrangement

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Publication number Priority date Publication date Assignee Title
DK153780C (en) * 1986-03-18 1989-01-09 Micro Matic As VALVE, ISAIR FOR A PRESSURE CONTAINER, AND PROCEDURE FOR INSTALLING THE VALVE IN THE PRESSURE CONTAINER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1003447A (en) * 1963-08-02 1965-09-02 Wilfrid Henry Calf Improvements in and relating to bushes
GB2209740A (en) * 1987-09-14 1989-05-24 Grundy Beverage cask extractor tube assembly
DE3844428A1 (en) * 1988-08-12 1990-02-15 Pineda Manuel Sanchez Anchoring, which cannot be broken open, for tapping pipes on beer containers
WO1991002694A1 (en) * 1989-08-24 1991-03-07 Micro Matic A/S A valve arrangement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994016985A1 (en) * 1993-01-25 1994-08-04 D.S.I. Josef Breitwisch & Co. Gmbh Safety device for a valve insert in a beverage barrel
US5526965A (en) * 1993-01-25 1996-06-18 D. S. I. Josef Breitwisch & Co. Gmbh Safety device for a beverage container valve inset
EP0887304A1 (en) * 1997-06-24 1998-12-30 Kirin Beer Kabushiki Kaisha Valve for pressure vessel
WO1999007632A1 (en) * 1997-08-11 1999-02-18 Spears Limited Keg and keg fitting for dispensing liquids under pressure
US6308869B1 (en) 1997-08-11 2001-10-30 Spears Limited Keg and keg fitting for dispensing liquids under pressure
GB2446396A (en) * 2007-02-12 2008-08-13 Inbev Sa Valve assembly for a beer keg

Also Published As

Publication number Publication date
ATE128946T1 (en) 1995-10-15
DK0512152T3 (en) 1995-11-27
ES2077732T3 (en) 1995-12-01
EP0512152B1 (en) 1995-10-11
DE4114604C2 (en) 1994-10-13
GR3017900T3 (en) 1996-01-31
DE59106685D1 (en) 1995-11-16
DE4114604A1 (en) 1992-11-05

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