EP0512152B1 - Safety device for beverage cask - Google Patents

Safety device for beverage cask Download PDF

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Publication number
EP0512152B1
EP0512152B1 EP91111721A EP91111721A EP0512152B1 EP 0512152 B1 EP0512152 B1 EP 0512152B1 EP 91111721 A EP91111721 A EP 91111721A EP 91111721 A EP91111721 A EP 91111721A EP 0512152 B1 EP0512152 B1 EP 0512152B1
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EP
European Patent Office
Prior art keywords
safety device
outlet opening
bayonet plate
housing
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.)
Expired - Lifetime
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EP91111721A
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German (de)
French (fr)
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EP0512152A1 (en
Inventor
Rolf Jaeger
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D S I Josef Breitwisch and Co GmbH
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D S I Josef Breitwisch and Co GmbH
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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 external projections in 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, and with a locking element which is held by the compression spring and engages behind the inner edge of the barrel outlet opening in the operating position.
  • Such a previously specified safety device is known from GB-AS 21 88 040.
  • the actual locking element is integrally formed in one piece on the bayonet plate in the form of a radially projecting hook. For this reason, only a partial assembly of the safety device can be carried out, namely a partial assembly of the central tube with a sealing ring, compression spring and initially a loose bayonet plate. Because of the radial projection of the locking element, the insertion through the outlet opening of the barrel can only take place in the inclined position of the bayonet plate and the central tube.
  • the final assembly of the safety device takes place by placing a separate head part with a cylindrical pipe socket, at the inner end of which L-shaped slots are provided, into which radial projections of the bayonet plate must be used. Only then can the safety device be finally screwed into the outlet opening of the drum.
  • the assembly processes are quite cumbersome and time-consuming, especially since the compression spring has to be compressed during assembly on the barrel in order to snap the bayonet plate into place.
  • the locking element consists of a relatively long, axially extending tongue, at the upper end of which a ring is formed, which in turn is held by the upper end of the compression spring.
  • the lower end of the tongue is bent outwards and has a radially outward web. Because of this shape of the locking element, the assembly must also be carried out in an inclined position of the central tube and the surrounding parts before the housing can be straightened, inserted axially and finally screwed down.
  • an elongated finger made of spring steel and provided with a kink is again provided, on the upper end of which a clamped ring is formed.
  • the free lower end of the finger presses against a U-shaped pivoting element which is pivoted into an external position by the steel finger within a recess of the valve housing up to a stop.
  • the swivel mounting is carried out by notches in the undersides of the legs of the U-shaped element, in which the lower edge of the recess engages.
  • the entire assembled device can be brought into the operating position by axially pressing it into the outlet opening and then screwing it tight, because the pivoting element can pivot inwards against the spring force of the steel finger.
  • the invention relates to the special design of a safety device on a barrel fitting constructed according to the keg principle.
  • the invention is based on the object of significantly simplifying the structural part of the safety device, which serves to safeguard against uncontrolled ejection of the valve in the event of improper dismantling, and thus to reduce the construction and cost.
  • the object is achieved in that the locking element with a rectangular web there is an angled part which engages behind the inner edge or in a recess of the bayonet plate.
  • the locking element consists of a rectangular web with a T-shaped widening at the inner end, and that the T-shaped widening engages in recesses in the bayonet plate.
  • 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, 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 attached 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 coil 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 the non-illustrated edge of the outlet opening or the pipe socket at the outlet opening during the operation and then in the operating position behind the inner one Edge of the outlet opening engages.
  • the locking element 22 is held between a part of the bayonet plate 11 and the compression spring 21, and in the operating position it projects outward beyond the housing part 5.
  • 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 dash-dotted lines, ie into a position in which the locking element is located completely within the lower housing part 5 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 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 in 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 consist of a rectangular web 28 with a T-shaped widening 29 at the inner end.
  • 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 opened 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, und mit einem Verriegelungselement, welches von der Druckfeder gehalten ist und in Betriebsstellung hinter den inneren Rand der Faß-Auslaßöffnung greift.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 external projections in 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, and with a locking element which is held by the compression spring and engages behind the inner edge of the barrel outlet opening in the operating position.

Eine solche zuvor angegebene Sicherheitsvorrichtung ist aus der GB-AS 21 88 040 bekannt. Das eigentliche Verriegelungselement ist in Form eines radial nach außen ragenden Hakens einstückig an der Bajonettplatte angeformt. Aus diesem Grunde kann zunächst nur eine Teilmontage der Sicherheitsvorrichtung vorgenommen werden, nämlich eine Teilmontage des Zentralrohres mit Dichtungskranz, Druckfeder und zunächst loser Bajonettplatte. Wegen des radialen Vorsprunges des Verriegelungselementes kann das Einführen durch die Auslaßöffnung des Fasses nur in Schrägstellung der Bajonettplatte und des Zentralrohres erfolgen. Danach erfolgt der endgültige Zusammenbau der Sicherheitsvorrichtung durch Aufsetzen eines separaten Kopfteiles mit einem zylindrischen Rohrstutzen, an dessen inneren Ende L-förmige Schlitze vorgesehen sind, in welche radiale Vorsprünge der Bajonettplatte zum Einsatz gebracht werden müssen. Erst danach kann das endgültige Einschrauben der Sicherheitsvorrichtung in die Auslaßöffnung des Fasses erfolgen. Auch hier sind die Montagevorgänge recht umständlich und zeitraubend, zumal die Druckfeder bei der Montage am Faß zusammengedrückt werden muß, um die Bajonettplatte zum Einrasten zu bringen.Such a previously specified safety device is known from GB-AS 21 88 040. The actual locking element is integrally formed in one piece on the bayonet plate in the form of a radially projecting hook. For this reason, only a partial assembly of the safety device can be carried out, namely a partial assembly of the central tube with a sealing ring, compression spring and initially a loose bayonet plate. Because of the radial projection of the locking element, the insertion through the outlet opening of the barrel can only take place in the inclined position of the bayonet plate and the central tube. Then the final assembly of the safety device takes place by placing a separate head part with a cylindrical pipe socket, at the inner end of which L-shaped slots are provided, into which radial projections of the bayonet plate must be used. Only then can the safety device be finally screwed into the outlet opening of the drum. Here, too, the assembly processes are quite cumbersome and time-consuming, especially since the compression spring has to be compressed during assembly on the barrel in order to snap the bayonet plate into place.

Weitere Sicherheitsvorrichtungen sind aus der WO 91/026 94-A1 bekannt. Bei der Konstruktion nach einem Ausführungsbeispiel besteht das Verriegelungselement aus einer verhältnismäßig langen sich axial erstreckenden Zunge, an deren oberen Ende ein Ring angeformt ist, der seinerseits von dem oberen Ende der Druckfeder gehalten ist. Das untere Ende der Zunge ist nach außen umgebogen und weist einen radial nach außen gerichteten Steg auf. Wegen dieser Formgestaltung des Verriegelungselementes muß auch hier die Montage zunächst in einer Schrägstellung des Zentralrohres und der umgebenden Teile erfolgen, bevor das Gehäuse gerade gerichtet, axial eingeschoben und schließlich festgeschraubt werden kann. Bei einem weiteren Ausführungsbeispiel ist wiederum ein langgestreckter mit einer Knickstelle versehener aus Federstahl bestehender Finger vorgesehen, an dessen oberem Ende ein eingespannter Ring angeformt ist. Das freie untere Ende des Fingers drückt gegen ein U-förmiges Schwenkelement, das innerhalb einer Ausnehmung des Ventilgehäuses von dem Stahlfinger bis zu einem Anschlag in eine Außenstellung geschwenkt wird. Die Schwenklagerung erfolgt durch Kerben in den Unterseiten der Schenkel des U-förmigen Elementes, in die der untere Rand der Ausnehmung eingreift. Bei diesem Ausführungsbeispiel kann die gesamte zusammengebaute Vorrichtung durch axiales Eindrücken in die Auslaßöffnung und durch anschließendes Festschrauben in Betriebsstellung gebracht werden, weil das Schwenkelement entgegen der Federkraft des Stahlfingers nach innen einschwenken kann.Further safety devices are known from WO 91/026 94-A1. In the construction according to one embodiment, the locking element consists of a relatively long, axially extending tongue, at the upper end of which a ring is formed, which in turn is held by the upper end of the compression spring. The lower end of the tongue is bent outwards and has a radially outward web. Because of this shape of the locking element, the assembly must also be carried out in an inclined position of the central tube and the surrounding parts before the housing can be straightened, inserted axially and finally screwed down. In a further exemplary embodiment, an elongated finger made of spring steel and provided with a kink is again provided, on the upper end of which a clamped ring is formed. The free lower end of the finger presses against a U-shaped pivoting element which is pivoted into an external position by the steel finger within a recess of the valve housing up to a stop. The swivel mounting is carried out by notches in the undersides of the legs of the U-shaped element, in which the lower edge of the recess engages. In this embodiment, the entire assembled device can be brought into the operating position by axially pressing it into the outlet opening and then screwing it tight, because the pivoting element can pivot inwards against the spring force of the steel finger.

Ferner ist aus der DE-AS 38 44 428 eine aufbruchsichere Verankerung für Zapfrohre an Bierbehältern bekannt. Hierbei sind an einem oberen Verschlußstück drei auf dem Umfang verteilte achsparallel verlaufende Stäbe vorgesehen, an deren unterem Ende mittels Gelenken od. dgl. schräg nach oben und außen führende abgewinkelte Arme angelenkt sind, welche durch Fenster in der Rohrwand des Kopfstückes greifen. Die freien Enden dieser Arme sind auf die Innenfläche des Gefäßhalses gerichtet, so daß ein Lösen des Kopfstückes vom Faß durch Drehen verhindert wird.Furthermore, DE-AS 38 44 428 discloses a tamper-proof anchoring for dispensing pipes on beer containers. Here, on an upper closure piece, three axially parallel rods distributed over the circumference are provided, at the lower end of which are articulated by means of joints or the like. Angled arms leading obliquely upwards and outwards, which engage through windows in the tube wall of the head piece. The free ends of these arms are on the inside surface the neck of the vessel, so that loosening of the head piece from the barrel is prevented by turning.

Ein weiterer Stand der Technik ist aus der GB-OS 22 09 740 bekannt. Hierbei ist zwischen dem einstückig angeformten Boden des in die Auslaßöffnung des Getränkefasses einschraubbaren Gehäuses einerseits und dem unteren Ende einer im Gehäuse angeordneten Druckfeder andererseits eine ringförmige Scheibe angeordnet, die mit einem nach außen aus dem Gehäuse herausragenden Vorsprung versehen ist. Beim Einschrauben des Gehäuses in die Auslaßöffnung des Getränkefasses nimmt die Scheibe mit dem Vorsprung unter einseitigem Zusammendrücken der Druckfeder eine Schrägstellung ein, bis der Vorsprung unter die untere Kante der Auslaßöffnung gelangt und unter dem Druck der Feder in Betriebsstellung gebracht wird. Beim Ausschrauben des Gehäuses kann die Scheibe mit dem Vorsprung wiederum eine Schrägstellung einnehmen, und zwar in der anderen Richtung unter Zusammendrücken der von dem Vorsprung abliegenden Seite der Druckfeder. Da diese letzere Schwenkbewegung auch möglich ist, wenn im Getränkefaß ein hoher Druck herrscht, bietet diese bekannte Vorrichtung keine ausreichende Sicherheit.Another prior art is known from GB-OS 22 09 740. Here, an annular disc is arranged between the integrally formed bottom of the housing screwable into the outlet opening of the beverage barrel on the one hand and the lower end of a compression spring arranged in the housing, which is provided with an outwardly projecting projection from the housing. When the housing is screwed into the outlet opening of the beverage keg, the disc with the projection assumes an inclined position by compressing the compression spring on one side until the projection comes under the lower edge of the outlet opening and is brought into the operating position under the pressure of the spring. When unscrewing the housing, the disk with the projection can again assume an inclined position, in the other direction by compressing the side of the compression spring remote from the projection. Since this latter pivoting movement is also possible when there is high pressure in the beverage keg, this known device does not offer sufficient security.

Gegenüber dem zuvor aufgezeigten Stand der Technik betrifft die Erfindung die spezielle Ausgestaltung einer Sicherheitsvorrichtung an einer nach dem Keg-Prinzip aufgebauten Faßarmatur. Dabei liegt der Erfindung die Aufgabe zu Grunde, den konstruktiven Teil der Sicherheitsvorrichtung, welcher dem Absichern gegen unkontrolliertes Herausschleudern der Armatur bei unsachgemäßer Demontage dient, wesentlich zu vereinfachen und damit den Bau- und Kostenaufwand zu verringern.Compared to the prior art shown above, the invention relates to the special design of a safety device on a barrel fitting constructed according to the keg principle. The invention is based on the object of significantly simplifying the structural part of the safety device, which serves to safeguard against uncontrolled ejection of the valve in the event of improper dismantling, and thus to reduce the construction and cost.

Die gestellte Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Verriegelungselement aus einem Rechtecksteg mit einem abgewinkelten Teil besteht, welches hinter den inneren Rand oder in eine Ausnehmung der Bajonettplatte greift.The object is achieved in that the locking element with a rectangular web there is an angled part which engages behind the inner edge or in a recess of the bayonet plate.

Eine Alternative zur Lösung der gestellten Aufgabe ist dadurch gekennzeichnet, daß das Verriegelungselement aus einem Rechtecksteg mit einer T-förmigen Verbreiterung am inneren Ende besteht, und daß die T-förmige Verbreiterung in Vertiefungen der Bajonettplatte eingreift.An alternative to solving the problem is characterized in that the locking element consists of a rectangular web with a T-shaped widening at the inner end, and that the T-shaped widening engages in recesses in the bayonet plate.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous refinements 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 corresponding 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, 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 attached 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 coil 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 zwischen einem Teil der Bajonettplatte 11 und der Druckfeder 21 gehalten, und es ragt in Betriebsstellung nach außen über das Gehäuseteil 5 hinaus. Wesentlich ist dabei, daß das Verriegelungselement 22 am inneren Ende schwenkbar gelagert ist, 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 the non-illustrated edge of the outlet opening or the pipe socket at the outlet opening during the operation 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 held between a part of the bayonet plate 11 and the compression spring 21, and in the operating position it projects outward beyond the housing part 5. It is essential that 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 dash-dotted lines, ie into a position in which the locking element is located completely within the lower housing part 5 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 downwards 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 in by the pressure of the compression spring 21 the drawn position shown in 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 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 in Vertiefungen der Bajonettplatte ein. 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, this 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 in 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. According to FIG. 3, the locking element can also 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 engages in recesses in the bayonet plate. 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 opened 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 each other, are particularly useful. 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 (8)

  1. Safety device for use in an outlet opening of a pressurised beverage cask, in particular a beer barrel, with a housing (1), a central pipe (15), a bayonet plate (11), which engages by outer projections (12, 13, 14) in L-slots (8) in the housing part (5), furthermore with a compression spring (21), which is supported at one end on the bayonet plate (11) and at the other end on a sealing device (18, 19, 20) and with a locking member (22), which is held by the compression spring (21) and in the operating position engages behind the inner edge of the barrel outlet opening, characterised in that the locking member (22) consists of a rectangular web (26) with a bent part (27), which engages behind the inner edge or in a recess in the bayonet plate (11).
  2. Safety device for use in an outlet opening of a pressurised beverage cask, in particular beer barrel, with a housing (1), a central pipe (15), a bayonet plate (11), which engages by outer projections (12, 13, 14) in L-slots (8) in the housing part (5), furthermore with a compression spring (21), which is supported at one end on the bayonet plate (11) and at the other end on a sealing device (18, 19, 20), and with a locking member (22), which is held by the compression spring (21) and in the operating position engages behind the inner edge of the barrel outlet opening, characterised in that the locking member (22) consists of a rectangular web (26) with a T-shaped enlargement (29) at the inner end, and that the T-shaped enlargement (29) engages in recesses in the bayonet plate (11).
  3. Safety device according to Claim 1 or 2, characterised in that the locking member (22) projects partly through a window (24; 30) in the housing (1) and the lower edge (25) of the window and the bayonet plate (11) act as a stop for the locking position.
  4. Safety device according to Claim 3, characterised in that in the operating position, the locking member (22) is guided in a recess (34) in the bayonet plate (11) and the surface of the recess aligns with the lower edge (25) of the window.
  5. Safety device according to Claim 3 or 4, characterised in that beside one end of the lower edge (33) of the window, the window (30) comprises a slot (32) which extends axially downwards and is open, which slot corresponds to the width of the locking member (22), and that the lower edge of the window (33) acting as a stop in the locking position has a greater width than the tangential bayonet slots (10).
  6. Safety device according to one of the preceding Claims, characterised in that a plurality of locking members is distributed with respect to the periphery of the housing.
  7. Safety device according to Claim 6, characterised in that three locking members are arranged at an angle of 120° with respect to each other.
  8. Safety device according to Claim 7, characterised in that the three locking members are respectively located approximately in the centre 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
DE4114604A DE4114604C2 (en) 1991-05-04 1991-05-04 Safety device for beverage keg
DE4114604 1991-05-04

Publications (2)

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

Family

ID=6430989

Family Applications (1)

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

Country Status (6)

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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)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0680453B1 (en) * 1993-01-25 1996-06-19 D.S.I. Getränkearmaturen GmbH &amp; Co. KG Safety device for a valve insert in a beverage barrel
JP3459338B2 (en) * 1997-06-24 2003-10-20 麒麟麦酒株式会社 Pressure vessel valve
GB2328204A (en) 1997-08-11 1999-02-17 Kenneth Leonard Simpson Keg and spear valve assembly
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
GB2446396A (en) * 2007-02-12 2008-08-13 Inbev Sa Valve assembly for a beer keg

Family Cites Families (5)

* 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
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
GB2209740B (en) * 1987-09-14 1991-10-16 Grundy Beverage extractor tube and valve assembly
ES2005506A6 (en) * 1988-08-12 1989-03-01 Sanchez Pineda Manuel Anchoring, which cannot be broken open, for tapping pipes on beer containers
DK418289A (en) * 1989-08-24 1991-02-25 Micro Matic As ANTI-LASHING SECURITY SYSTEM

Also Published As

Publication number Publication date
DE4114604A1 (en) 1992-11-05
ATE128946T1 (en) 1995-10-15
GR3017900T3 (en) 1996-01-31
EP0512152A1 (en) 1992-11-11
DE59106685D1 (en) 1995-11-16
DE4114604C2 (en) 1994-10-13
DK0512152T3 (en) 1995-11-27
ES2077732T3 (en) 1995-12-01

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