EP2295372A1 - Pressure cap for beer containers and method for operating same - Google Patents

Abstract

The pressure-pin support (101) comprises a rapier (102), which has a carbon dioxide channel (103'), which is in fluidic connection with a carbon dioxide cartridge over a valve arrangement. The carbon dioxide cartridge is bent and is arranged pointing with an upward neck. An operating unit is provided, which is a rotating mechanism, which is arranged in a recess.

Description

The following invention relates to a pressure tapping attachment for beer containers and a corresponding beer tapping method.

Pressure-dispensing taps for the arrangement of beer vessels such as cans or barrels containing several liters of beer, allow the tapping of beer, which is promoted from the container and it is attractively and tastefully filled with appropriate foam crown in glasses. Such dispensers provide in the beer vessel such a pressure of carbonic acid that the beer is conveyed and foamed. The tapping of the beer is then via a tap, which is located near the ground on a vertical wall of the can or barrel.

A print attachment of this kind is in the DE 10 2007 032 414 B4 described by Grittman. There, a printing attachment is disclosed, which can be placed on beverage cans to pressurize the beverage by means of a arranged in the pressure lid carbon dioxide cartridge with gas. The carbon dioxide cartridge is connected via a valve assembly and a sword with the contents of the vessel in contact. To allow the gas to flow from the cartridge into the vessel, it is pushed by means of a lever arrangement against a mandrel, which provides an opening in the carbon dioxide cartridge, respectively in a present in the cartridge neck closure device. The mandrel itself is mounted on a carriage having a bore for directing the gas. The gas may flow through a bore actuatable valve assembly through the bore into a channel system which extends into the sword and may thus flow into the beverage. The gas flow through the channel system is made possible by a rocker arm, which is in operative connection with a piston, so that with appropriate position of the rocker arm, the gas through the bore first into a first channel, from there into a space surrounded by a piston and further in can flow a second channel. The actuation of the piston by the Rocker arm causes the gas from the piston chamber is pressed into the channel, which opens into the sword. The beverage is then discharged via a tap, which is present on the vertical wall of the container.

Based on this prior art, the present invention based on the object to provide an improved device for supplying pressure in beer vessels available, which allows not only the pressurization of the print attachment and a discharge of the beverage on the essay.

This object is achieved by a pressure tap attachment with the features of independent claim 1.

Further developments of the device are described by the subclaims.

An embodiment of a pressure tapping attachment according to the invention, which can be placed on beer containers, comprises a sword, which extends from the pressure tap attachment in the beer container, and further a CO ₂ cartridge, which is in fluid communication with the sword via a valve assembly , For this purpose, the CO ₂ cartridge in a hood, which forms the quasi the housing of the pressure tap attachment, inclined and arranged with a neck facing up.

The CO ₂ cartridge is slidably mounted in the hood by an actuator against a mandrel, so that the mandrel can penetrate a closure of the cartridge neck and create a channel for the escape of the gas from the cartridge. Further, a bridge member bridges the path from the outlet of the CO ₂ cartridge to a gas-inlet opening in the sword and provides this advantage a duct system and valve means to ₂ cartridge CO ₂ gas in the present of the CO over a Degen CO ₂ channel in the beer container, respectively in the beer, to convict.

To cause the cartridge is pierced, is her feed against a piercing such as a mandrel required. Actuating means as in this case a rotating mechanism afford this operation. The rotating mechanism is arranged in a recess on a hood edge and can be handled so easily from the outside. It comprises a rotary lever arranged on a vertical axis of rotation. The axis of rotation provides a feed element for advancing the cartridge against a mandrel.

Furthermore, the pressure tap attachment according to the invention has a telescopic outlet tube which, if not tapped, can be pushed into the hood. Its end pointing into the hood opens into a valve which is fluidically connected to a riser channel extending into the sword and which, depending on whether it is arranged in an opening or closing position, provides a fluid path for the beer from provides the riser via the valve through the telescopic spout. The fluidic connection is realized by a lever arrangement for opening - and closing again - the valve.

The valve can be designed essentially according to two principles of operation: as a pressure or as a pull valve.

Pressure operable valves are known per se, a solution according to the invention, advantageously easy to implement and safely occlusive provides the use of a pressure valve, which includes a pressure pin disposed in a vertical recess of the valve housing, which is connected to the telescopic outlet pipe is. If the pressure pin in the recess, which may be a bore, depressed, an annular gap is released to the pressure pin and provided a fluid path from the riser via the annular gap in the outlet pipe. The depression is effected by means of a lever arrangement comprising a lever pivotally arranged on the upper side of the hood, at whose end pointing to the valve there is a nose which presses on a spring element when the lever is actuated, which is actuated above the valve at the top of the Hood is formed. This is how the valve opens and closes.

The spring element may be a leaf spring, which is provided by a U-shaped slot which is introduced into the hood top.

If, on the other hand, the valve arrangement is a pull valve, a so-called compensator housing is used according to the invention as a housing for the valve, which recess is provided with a vertically extending, conically downwardly tapered recess opening into the riser pipe, respectively into the channel which is surrounded by the pipe is that has at its upper end an opening in the telescopic outlet pipe. In the recess, a pull pin is arranged, which is pressed at its upper, facing the top of the hood end of a spring under pressure in the recess and closes it in a closed position of the valve. The pull pin comprises at its upper end radially projecting protrusions on which two present on the lever assembly lifter can attack to lift the pull pin against the spring pressure and thus release an annular gap around the pin in the recess. Thus, when the valve is in the open position, a fluid path for beer is provided through the riser via the recess into or through the outlet tube. It has been found that in the design with a pull valve, an undesirable gas bubble formation on the valve during the pin is avoided.

The recess in the Kompensatorgehäuse has from the height of the mouth of the telescopic spout a widened portion which is adapted to the construction of the tension pin: This has at the level of the mouth of the telescopic spout a shoulder on which the central body of the pin in an outer Ring section merges concentrically surrounding an inner core. As a result, between the ring portion and the inner Core of the central body formed an annular gap, which serves to absorb the coil spring, which depress the pin in the recess.

The height of the ring portion is lower than the height of the widened portion of the recess, and about the height or the diameter of the mouth of the telescopic outlet pipe, so that the required displacement for the pull pin is provided to the in the Closing position the telescopic outlet tube closing section of the pull pin can move so far that the required to create the fluid path annular gap to provide a valve opening position results.

Around the upper end of the annular element is advantageously a sealing ring, which is designed and arranged so that it allows ventilation of the confluence portion in the valve opening position, so that at the end of a tapping operation, before the valve is closed again and the outlet pipe stowed through the ventilation at the outlet pipe pending beer can leak completely and thus finds a clean emptying takes place.

The lower portion of the Kompensatorgehäuses forms the sword with a corresponding Degenansatz from which the riser and the vertical outlet portion of the CO ₂ channel, which is housed in a CO ₂ outlet piece, extend into the beer keg. The two elements standpipe and CO ₂ outlet piece are arranged adjacent to each other and the riser can be advantageously received by a sealing ring in the rapier neck. The "sword" may in this case be shortened to a very short section of a holding piece for the riser pipe and the CO ₂ outlet piece; in the design with the pull valve therefore offers a one-piece design with the Kompensatorgehäuse.

In an advantageous embodiment of the pressure attachment according to the invention, an outlet section of the CO ₂ outlet piece is equipped with a check valve.

The telescopic outlet pipe further has a handle, which is received in the non-use position in a recess of the hood edge and terminates flush with this. The telescopic outlet pipe may further be equipped with a stop element which abuts when telescoping the outlet pipe to the desired length on the inside of the hood and prevents further extraction.

Further arranged on the telescopic outlet pipe two parallel to its longitudinal axis on opposite sides of the circumference of the same arranged stop ribs, where the two hook-shaped extending from one end of the lever lifter come to rest when the telescopic tube is retracted.

The advancing means for activating and discharging CO ₂ from the CO ₂ cartridge are provided by a rotating mechanism constituted by a rotary lever rotatable about a rotation axis. The rotary lever may have an oval cross section or a circular cross section from which a tangential cantilever extends. The designs are such that in a non-use position with the hood edge flush. The principle of operation is based on the fact that by rotating the rotary lever about the axis of rotation an impulsive movement is carried out against the bottom of the CO ₂ cartridge and this is displaced against opening means. The rotational movement can take place by 180 ° in the counterclockwise direction and the rotational movement can be or cause an eccentric movement.

A locking engagement can be provided for the rotary lever by engaging an edge of the handle with an edge of the rotary lever in a non-use arrangement. Thus, it is advantageously achieved that a piercing of the cartridge can take place only after pulling out of the telescopic outlet pipe.

Next to the rapier attachment, on which the sword with the therein riser for beer and with the CO ₂ channel, in the Valve or opens into the bridge element, sealing means for receiving and also for fixing the sword attachment to be provided on the valve piece. Furthermore, a seal may be provided around the rapier attachment in an insertion opening of the sword in the beer container, which provides an explosion protection function via the usual sealing function. For this purpose, a sealing flange, which may consist of a plastic, which is preferably elastic, abut with its collar on a beer container top, wherein the wall of the sealing flange with respect to the wall thickness tapers towards the side pointing into the beer container side and in particular may expire wedge-shaped , so that at an elevated internal pressure keg the flange is blasted off the barrel together with the pressure tap attachment and results in a pressure relief, without causing the barrel to explode.

The bridge element, which bridges the path from the outlet opening of the CO ₂ cartridge to a gas inlet opening in the sword, may have an embodiment as shown in the DE 10 2007 032 414 B4 Grittman already described, or it may be a bridge element, which is constructed as follows: It comprises a mandrel, which is mounted in a holder and parallel to, advantageously immediately adjacent a axially extending through the bracket extending bore. The CO ₂ cartridge is slidably mounted against the mandrel. The bore opens into a gap adjacent to an axially further extending sealing element disposed on a die. The stamp is mounted in a bearing and displaceable by pressing a rocker lever.

A bridge part comprises a "piston", or a piston-like or piston-like device, preferably a membrane-covered space. A connection between the membrane-covered space and the gap into which the gas exits after piercing the cartridge or its closure means by pre-pressing against the piercing mandrel, is by a present in the bridge part channel, which is at a right angle to the longitudinal axis the carbon dioxide cartridge runs, formed.

Gas now flows from the CO ₂ cartridge to an overpressure valve, which is arranged at an end of the channel present in the bridge section behind the membrane space and stands there. A channel branch goes into the cavity under the membrane. Another channel goes into the barrel. By increasing pressure from the CO ₂ cartridge, the membrane is pushed upwards. The membrane in turn pushes the rocker arm upwards, so that it pushes the punch downwards over a deflection at the hood edge. This stamp, which is provided at the bottom with the seal, thus closes the outlet channel of the cartridge at a fixed barrel internal pressure.

Thus, a fluidic connection of a second channel, which opens from the piston into the sword, is provided through the first channel to the CO ₂ cartridge through the first channel through the advanced plunger and the rocker arm tilted thereby.

The spatial depth of the pressure tap attachment according to the invention is essentially determined by the size of the carbon dioxide cartridge, which can be arranged in the pressure tap attachment.

The rocker arm is particularly advantageously arranged in such a space-saving manner that the transfer of the gas from a first level, on which the cartridge neck is located, from which the gas exits into the bore, is made possible to a second level, from which the gas into the Beer is transferred. The clever arrangement of the rocker arm between the two levels allows advantageous with little design effort space saving a carbon dioxide cartridge can be placed on a vessel so that it can be acted upon at the desired time with gas. In this case, the beer, if it is not completely used up, be stored with vascular and pressure tap attachment.

For this purpose, the telescopic outlet pipe, which is the Bierauslass provides, as well as the operating lever for the valve and the Ansteck-rotating lever inserted into the hood or received in corresponding recesses, so that the beer container, preferably a tin can with a capacity of up to 10 I, more preferably with a capacity from 5 I, is, looks shapely and can be stored optimally. There are no protruding components on the drum ready to be tapped which could break off or occupy the space.

Finally, embodiments relate to the provision of safety provisions by pressure and check valves.

These and other advantages are set forth by the following description with reference to the accompanying figures.

The reference to the figures in the description is to support the description. Articles or parts of objects which are substantially the same or similar may be given the same reference numerals. The figures are merely schematic representations of embodiments of the invention. It shows:

Fig. 1 a side view of a pressure tap attachment according to the invention in use position along a section line AA,

Fig. 2 a side view of a pressure tap attachment it along the section line AA in non-use position,

Fig. 3 a side view of a pressure tap attachment according to the invention along a section line CC in a use arrangement,

Fig. 4 a side view of a pressure tap attachment along the section line CC in a non-use arrangement,

Fig. 5 a view of the pressure tap attachment according to the invention from below in a use arrangement,

Fig. 6 a top view of a pressure tap attachment according to the invention in a use arrangement,

Fig. 7 a perspective view of a pressure-tap attachment in a use arrangement,

Fig. 8 a top view of a pressure tap attachment in a non-use arrangement,

Fig. 9 a perspective view of a pressure tap attachment in the non-use arrangement,

Fig. 10 a view of the pressure tap attachment according to the invention in a non-use arrangement from below,

Fig. 11 a sectional view from above of a bridge element of a pressure tap attachment,

Fig. 12 a perspective top view of a further embodiment of a pressure tap attachment according to the invention in a non-use arrangement,

Fig. 13a a side sectional view of the pressure tap attachment Fig. 11 in a non-use arrangement,

Fig. 13b a side sectional view of the pressure tap attachment Fig. 12 in preparation for a use arrangement,

Fig. 13c a side sectional view of the pressure tap attachment according to the invention Fig. 12 in the use arrangement,

Fig. 14a a perspective top view of the pressure tap attachment Fig. 12 without cover in non-use arrangement,

Fig. 14b a perspective top view of the pressure tap attachment Fig. 12 without cover when transferred to the use arrangement,

Fig. 14c a perspective top view of the pressure tap attachment Fig. 12 without cover in use arrangement.

Basically, the device of the invention refers to a pressure tap attachment that can be placed on a beer container. The pressure tapping attachment is particularly suitable for use with a small container vessel such as a 5 liter beer can, a 10 liter beer can or a beer can of slightly smaller or larger volumes. Such doses are cheaply manufacturable. The advantageous design of the pressure tap attachment according to the invention allows easy placement on a top of the standing beer can by one edge of the hood, which receives the components of the pressure tap attachment under it, is brought into engagement with an edge of the beer can. The sword is performed when placing the pressure tap attachment on the beer can through appropriately provided openings on the barrel top, and the hood is firmly locked at the edge.

Due to the low height of the pressure tap attachment, the dimensions of the beer keg are changed only slightly, resulting in a little increased space requirements, although the pressure tap attachment provides elements that allow on the one hand a supply of beer with fresh CO ₂ and at the same time Allow taps of the beer.

In the present case, the term "use arrangement" is used when one of the components is brought into a position in which the pressure tap attachment is ready to pour, a non-use arrangement, however, means a positioning of the components such that the barrel or can stored with the essay which is not ready to pour.

FIGS. 1 to 10 show the pressure tapping attachment according to the invention, the sword 102, seen from about Fig. 2 , has. The sword 102 is connected via a valve assembly with a carbon dioxide cartridge 3 in combination.

Basically, a "sword" in this case understood a pipe or a piece of pipe, which is arranged substantially perpendicular to the device level in which the gas cylinder is located. A piece of pipe is used in conjunction with the embodiment using a pull valve, see Figures 13 and 14 ; There, the tube is shortened and united with the compensator housing surrounding the valve.

The sword - in the long embodiment - can be fixed to the pressure tap attachment or be plugged. At the juncture of the sword, so the sword attachment, connecting and sealing means must be provided so that a secure coupling with the opening to the telescopic outlet valve and with the CO ₂ providing bridge element is ensured. Furthermore, the sword is suitable to be introduced by a corresponding opening provided in a barrel in the barrel. The sword can protrude accordingly deep into the barrel; In addition to the CO ₂ channel, it includes the riser pipe for the beer to be conveyed.

As Fig. 1 a pressure tapping attachment 101 according to the invention, which can be arranged on a beer container, can comprise a clip-on sword 102, which is connected via a valve arrangement, which in FIG Fig. 1 not fully shown, with a CO ₂ cartridge 103, see Fig. 3 , is fluidically coupled.

"Fluidic coupling" means in the present case that the CO ₂ gas can flow via the valve means into the beer contained in the beer container by being guided over the channels and valves described below, essentially united in a "bridge element".

In this case, the CO ₂ cartridge 103 in the hood 101 ', see Fig. 3 , supported against a foot bearing 122 and held by holding means - here a support sprayed in the lid - supported on the neck so that the neck of the CO ₂ cartridge 103 is arranged facing up. Preferably, the inclination of the CO ₂ cartridge 103 is at least 5 ° to 15 °, in order to avoid icing of the effluent CO ₂ gas in Bierzapfen. The CO ₂ cartridge 103 can be pushed by an actuator against a mandrel which provides an opening channel on the cartridge neck.

Also in the in Fig. 12 to 14c shown embodiment of the pressure-tapping attachment according to the invention, the in FIGS. 14a to 14c For a better understanding of the lever assembly without hood shown is related to Fig. 3 explained CO ₂ cartridge assembly used, in conjunction with the bridge element described; however, that is in Fig. 14 a, b and c shown bridge element 113 now ideally shortened and taking up less space; It is designed in several parts. For the bridge element 113 itself, also referred to as a "pressure balance", this results in no immediate advantage, but the tools required for the production can be used more flexibly.

In order to realize the advancement of the CO ₂ cartridge 103 against the opening means, in the present case as an actuating device, a rotating mechanism 310, see Fig. 5 to 9 , proposed. The rotation mechanism 310 is disposed in a recess 312 on the hood edge 101 "(see FIG Fig. 7 ). It includes at a vertical axis of rotation 313, which also in Fig. 3 can be seen, feed means to advance the CO ₂ cartridge 103 against a mandrel. This feed means can already be represented by the fact that the axis of rotation 313 has an oval cross-section, so that when rotated by 180 ° an eccentric movement of the axis of rotation, which bears against a bottom of the CO ₂ cartridge 103, is carried out and causes the cartridge to advance ,

Alternatively, as a feed means, a rotary lever 311 having a circular cross section from which a tangential cantilever extends may be selected, see, for example Fig. 12 and Fig. 14a up to 14c, which may also have an axis of rotation 313 with an oval cross section and which is analogous to the above, based Fig. 3 explained lever 311 can operate. The second variant of the rotary lever 311 closes in a non-use position Thus, in a non-use arrangement, a locking engagement for the rotary lever 311 results by locking the edge of the handle 301 'with an edge of the rotary lever 311; Fig. 12 or Fig. 14a , Unwanted sticking of the CO ₂ cartridge is thus prevented.

Furthermore, it is possible as in Fig. 5 shown as feed means to provide a spring pin member 314 which is rotatably fixed to the rotation axis 313. Fig. 5 shows the spring bolt member 314 in the use position. There, it extends to provide the feed of the CO ₂ cartridge 103 through a pointing to the bottom of the CO ₂ cartridge 103 opening of the rotation axis 313 surrounding wall 315. Before the spring pin member 314 is used, it is in a biased position in a Slit held by the aforementioned wall 315 is held.

The pressure tapping attachment 101 according to the invention advantageously has a telescopic outlet tube 301, which is likewise mounted in the hood 101 '. It opens into the valve, no matter what configuration, and may have a stop element 330, see Fig. 13 and 14 , which forms a stop of the telescopic outlet pipe 301 on an inner side of the hood 101 'and thus prevents too far pulling out of the telescopic outlet pipe 301.

In a non-use state, the telescopic outlet pipe 301 is completely in the hood 101 'receivable, its outlet for beer 302, which opens into a convenient handle handle 301', then in a recess 316 at the hood edge 101 "(see Fig. 1 ) finished flush, like Fig. 2 . 12 and Fig. 13a demonstrate. This advantageously prevents the outlet pipe 301 or the outlet 302 from being broken off.

If the telescopic outlet pipe 301 from a use position, as in Fig. 1 is shown transferred to a non-use position as shown in FIG Fig. 2 is shown, then only the outer tube part is pushed over the inner tube part. The in the hood 101 'in the end facing the telescopic outlet pipe 301 there opens into a valve 320, which is connected to a riser channel 300 for beer, which extends into the sword 102, so that the beer over the riser channel 300, the valve 320 passing through the telescopic outlet pipe 301 from the beer outlet 302 can be left.

In order to cause the beer to escape, a lever arrangement 104 must be actuated. One of the two lever arrangements 104 shown and designed as a function of the types of valve used is in Fig. 1 shown in their position of use; it operates a pressure valve 320.

This pressure valve 320 comprises a pressure pin 320 ', which is arranged in a recess of the valve housing, which opens into the telescopic outlet pipe 301. By depressing the pressure pin 320 'in the recess, an annular gap is provided which provides a fluid path from the riser channel 300 into the outlet tube 301.

This lever arrangement 104 is articulated on an upper side of the hood 101 'by means of a rotary joint 323, so that the lever 104' can be pulled upwards and presses a pressure nose 324 arranged at a lower end against a leaf spring 325 arranged above the valve 320. This leaf spring element 325 is realized here in the simplest way, by a U-shaped slot 325 ', as shown in FIG Fig. 7 to 9 , in the top of the hood 101 'is cut.

As it turned out Fig. 6 to 9 clearly shows, according to the invention, the rotary mechanism 310 by means of a rotary lever 311 set in motion, which has a shape that can be flush in both a non-use position and in a position of use with the hood edge 101 " No projections from the pressure tap attachment 101 protrude, which are susceptible to damage, and on the other hand, especially when the rotary lever 311 is designed so that its operation by means of a 180 ° rotation takes counterclockwise, can be locked against unwanted operation.

This is accomplished by juxtaposing the rotary lever 311 of the rotating mechanism 310 and the handle 301 'of the telescopic spout 301 so that an edge of the handle 301' locks into engagement with an edge of the rotary lever 311 Fig. 8 and 9 But also about Fig. 14 a or 12 in connection with the pull valve 420 show. An impulse against the rotary lever causes it to hit the inside of the edge of the handle 301 ', so that the 180 ° rotation can not be performed without great effort when the telescopic outlet pipe 301 is in the non-use position.

When the telescopic outlet pipe 301 is pulled out, the rotary lever 311 is freely rotatable, and by rotating 180 °, the gas cartridge 103 can be caused by the corresponding opening means by advancing the cartridge 103.

This feed can be provided by turning the axis of rotation 313, as in FIG Fig. 3 shown, has an oval diameter, so that the rotation of the axis 313 leads to perform an eccentric movement, thus causing a advancement of the voltage applied to the rotation axis 313 CO ₂ cartridge 103, which is supported in the Fußlager 122. Due to the inner shape of the hood, as in Fig. 3 is shown, a good management of the CO ₂ cartridge 103 is also ensured.

The bridge element, which provides the required channels and valve means for transferring the CO ₂ gas from the cartridge 3 into the corresponding CO ₂ channel 103 'of the sword, is essentially through Fig. 11 shown a bridge element according to DE 10 2007 032 414 B4 represents.

Out Fig. 11 It is clear that the supported on a Fußlager 22 carbon dioxide cartridge 3 by a lever assembly that is accessible and operable from the outside of the pressure tap attachment 1, against a on the inside of the print attachment 1 - there is only a print attachment disclosed - arranged mandrel 5 so is displaced that the mandrel 5, the cartridge 3 opens. The mandrel 5 is arranged on a holder 6 and has an axial Longitudinal bore 5 'on. The bore 5 'opens into a gap, to which, extending axially further, a sealing element 9 adjoins, which is arranged on a punch 8. The sealing element 9 may be made of rubber or of another suitable material such as Teflon or plastic. Further, its shape may take other than the disc shape, other suitable geometric shapes such as a ring shape or cylindrical shape

The punch 8 is mounted in a bearing 10 and displaceable against a rocker arm 11. A bridge part in the bridge element 113 - the portion which represents the bridge element is in Fig. 5 stricheliert highlighted - in the inventive devices comprises, as in Fig. 11 A connection between the space covered with the membrane 16 and the gap 12, into which the gas escapes after piercing the cartridge 3 or its closure means by pre-pressing against the piercing mandrel is formed by a channel 14 present in the bridge part, which runs at a right angle to the longitudinal axis (CC) of the carbon dioxide cartridge 3.

From the CO ₂ cartridge 3 now gas flows once to a pressure relief valve 27, which is located at a lying behind the membrane space 17, the opposite end of the present in the bridge part channel 14 and stands there. A channel branch goes into the cavity 17 under the membrane. Another channel 18 goes into the barrel. By increasing pressure from the CO ₂ cartridge 3, the membrane 16 is pushed upwards. In turn, the rocker arm 11 bears against the inside of the edge 1 "of the hood, which unites the individual components of the pressure attachment 1 under it, such that the lever 11 can tip over, for which it has a fillet 19 on, which, as in Fig. 11 is shown supported on an abutment surface 19 'of the hood edge 1 ", the hood edge 1" is therefore stiffened on its outer side by longitudinal ribs 28. When the fillet 19 of the lever 11 is eccentrically arranged, as shown herein, a smaller punch movement is effected. By tilting the rocker arm 11, the punch 8 is pressed down. This stamp 8 is provided at the bottom with the seal 9, the closes the outlet channel of the cartridge 3 at a fixed internal pressure keg.

The rocker arm 11 is advantageously arranged so that the gas flowing from the pierced cartridge neck is transferred from its higher level under pressure reduction to the lower level at which the sword is located. The CO ₂ contained in the space 17 flows via the sword into the vessel, which is not shown figuratively.

As in Fig. 11 becomes clear, the punch 8 according to the invention may have a bulge, which corresponds to a corresponding present in the rocking lever 11 recess.

So the bridge element that is in Fig. 11 is shown suitable as a bridge element 113 as shown in FIG Fig. 5 To be used. It should be noted that upon receipt of the functionality of Fig. 11 minor changes are possible.

Such as Fig. 10 shows, the rocker arm 111 can also be supported against a solid surface provided a bearing surface 119 by the fillet 119 of the rocker arm 111 is applied there. Components of the bridge element 113, which incidentally by the dashed encirclement in Fig. 5 will be clarified, also in Fig. 4 The neck of the gas cartridge 103, which is held in a vertical support means of the hood 101 ', opens into a holder 106; the plunger is denoted by 108, it is mounted in the bearing 110 and occurs after provision of the gas pressure in the manner described with the rocker arm 111 in engagement.

This in Fig. 1 shown valve is a pressure valve 320, it has a movable in a piston shut-off pin, which is guided by the pressure of the pressure nose 324 of the lever 104 'on the spring element 325 via the elastic cap on the valve in the piston down and thus a passage from the riser channel 300 via the valve in the outlet pipe free, so that the beer is allowed to flow through the outlet 302 can.

Fig. 12 shows an alternative embodiment of the pressure tap attachment 101 according to the invention, which initially represents from the outside by the changed design. This alternative pressure tap attachment 101 has the pull valve 420 (seen approximately in FIG FIGS. 13a to c ).

The pressure tap attachment 101 has there an edge portion of its hood edge 101 ', which is formed bead-shaped and the wall is cut free so far that the passage 401 is formed, to which the pressure tap attachment 101 can be comfortably carried along with the beer keg attached thereto. Also the pressure tapping attachment after Fig. 6 to 10 shows in the hood 101 'a recess 121, which serves as a handle.

On the top of the hood, only a few necessary actuators according to the invention are arranged, so that an elegant design on the one hand and sufficient space on the other hand, so that the hand of a wearer can comfortably reach through the opening 401. For this, the top of the hood is generously cut out.

Fig. 12 shows the Druckzapfaufsatz 101 in a non-use position: As can be seen, the lever 104 'rests on the surface of the hood edge, and the telescopic outlet pipe is inserted and not visible, but only the telescopic outlet handle 301', which is flush with the Hood edge 101 'completes.

The above-mentioned alternative embodiment of the rotary lever 311 is shown, which here has the form of a "whistle" and is operated in a completely analogous manner, such as in Fig. 7 shown rotary lever 311; both rotate about the axes of rotation 313 and thus form the rotating mechanism 310, which must be operated, respectively, must be rotated in order to tap the offset with CO ₂ beer. Because only when the telescopic outlet tube handle 301 'extending portion of the rotary lever 311 is rotated away from the handle 301', this is unlocked, so that it is possible Extract the telescopic outlet pipe 301.

The extraction of the tube or the transfer of the device in a use or Zapfzustand is in the representation of the operating sequence of Fig. 13a 13b to 13c in the side section. Also the Fig. 14a, 14b and 14c illustrate the situations of transfer of the telescopic spout 301 from a non-use state ( Fig. 13a and 14a ) via an intermediate state in which the pull valve 420 still prevents premature spillage of beer ( Fig. 13b and 14b ) to a use or tapping condition ( Fig. 13c and 14c ) , in which both the telescopic outlet pipe 301 is pulled out, and the CO ₂ flow is released from the CO ₂ cartridge 103 via the above piercing mechanism, and the CO ₂ from the CO ₂ cartridge via the bridge member 113 to CO ₂ outlet piece 430 flows.

How out Fig. 13a . 13b and 13c is clear, the CO ₂ outlet piece 430 is formed as a double tube element by a bore 431, which opens into the bridge element 113, in an outer tube 432, which points down into the beer keg, extends. The outer tube 432 is closed at its end pointing into the barrel interior and has adjacent thereto radial bores 433 as CO ₂ outlets, through which the CO ₂ can flow. The thus designed valve member 430 is formed as a check valve by a fitting around the holes 433 element 434, which may be configured annular, opens when after piercing the cartridge CO ₂ gas is present with appropriate pressure, and closes the holes 433, when the intended pressure inside the beer keg is reached. Such a ring element may be designed to be elastic, so that it widens by the pressure resulting from piercing the cartridge pressure and an annular gap at the outlet openings 433 between the outer tube 432 and the ring member 434 provides, then with increasing barrel internal pressure and falling pressure in the CO ₂ - outlet piece 430 is closed again. Alternative designs of such check valves are known in the art and include, for example, ball, flap, Plate check valves.

Furthermore, the in Fig. 13a to 14c shown pull valve device designed so that the valve 420, unlike the in Fig. 7 ff. not described by inwardly pressing but by pulling an outflow channel through the riser channel 300 provides for the beer. The valve assembly 420 has a compensator housing 420 ', which has a vertically extending, conical downwardly tapered, opening into the riser channel 300 recess 335' has. This opens through its side wall at an upper portion in the telescopic outlet pipe 301. The opening can be closed by a pull pin 335 (see Fig. 13a to c), which is pressed in the non-use state at its top end of the hood 101 'facing upper end of a spring 321 under pressure in the recess 335'.

This is realized by the recess 335 'in the Kompensatorgehäuse 420' at its upper end from the height of the mouth of the telescopic outlet pipe 301 has a widened portion 335 "larger diameter and that the draw pin 335 at the level of the mouth of the outlet pipe 301 a Shoulder has, at which the main body of the Zugstifts 335 branches into an inner body and a concentric surrounding element 327, so that between this and the inner body of the Zugstifts 335 an annular gap is formed, which receives the spring 321 supporting.

The height of the member 327 extending annularly from the shoulder of the pull pin 335 about the inner body is less than the height of the widened portion 335 "of the recess 335 'so that the pull pin 335 can be pulled up against the spring pressure - see Fig. 13b and finally in an open position - see Fig. 13c - The junction opens into the outlet pipe 301.

The pulling up takes place by means of the pivot 323 'connected to the lever 104' at the pivot 323 'at the radially from the pull pin 335 away extending 326, the in Fig. 14a to 14c are visible, attack, and, as in the FIGS. 13a to 13c shown, compress the coil spring 321, so that the valve 420 is opened by lifting the Zugstifts 335 at the supernatants 326 in the direction hood top. Thus, in the compensator housing 420 ', an annular gap in the recess 335' is exposed around the draw pin 335. The provided annular gap provides a beer outlet channel 336.

In the closed position, the lever 104 'is located above the pull pin 335 such that the lever 104' forms an additional hold-down for the pull pin 335 and this engages in the recess 335 ', 335 "so that the junctions of rising channel 300 and telescopic Outlet pipe 301 are securely closed.

Fig. 13c shows the arrangement in the beer outlet position. It can be seen that by lifting the lever 104 ', which is in Fig. 13a rests on the hood surface, via the attachment of the lift ( Fig. 13b respectively. Fig. 14b ) on the projections 326, the closure element 420 is brought into an open position. In the rest position, the ends of the lifter 323 'sit on stop ribs 304 on the outside of the outer tube of the telescopic spout 301 ( Fig. 14a ), whereby an additional safeguard against unwanted actuation was made, since thus the operating lever 104 'can not be operated when the telescopic outlet pipe 301 is not extended.

As in Fig. 13c As can be seen, the telescopic spout 301 is located by extending the handle 301 'in the radial direction with respect to the longitudinal axis of the drum so that the beer outlet 302 is exposed to leave beer. In order to prevent the telescopic outlet pipe 301 is pulled too far, a stop member 330 in the form of a protruding nose on the outer tube of the telescopic outlet pipe 301, which is composed for telescoping of inner and outer tubes, arranged. The stop element 330 strikes when reached extension length on the inner wall of the hood 101 'at.

By means of the closure or valve arrangement 420 according to the invention, it is achieved that hardly any foam is formed within the dispensing attachment, in particular in the beer discharge passage 336 formed between the lower conical end of the draw pin 335 and the conical recess 335 'in the manner of an annular gap, and that, on the other hand the once-conveyed beer can be completely discharged from the discharge device, since a vent on a sealing ring 337 surrounding the upper end of the annularly extending around the inner body Zugstift element 327 is provided so that at a valve opening position air to the confluence of the telescopic outlet pipe 301 can flow into the recess 335 ", so that no negative pressure is created when the valve closes, which holds beer back in. By means of appropriate pressure compensation, no residual beer remains in the outlet pipe when the lever 104 'is being folded.

Further, the conical configuration of the lower end of the valve assembly 420 causes the dispensing device to be sealed: The annular gap is transferred by screwing the conical shape into the passage bore 335 'of the compensator housing 420' upon lowering the lever 104 'to actuate the closure device 420 the joint 323 tightly closed.

Moreover, the passage of the passage bore 335 'into the riser channel 300 in the portion of the compensator housing 420' acting as a rapier attachment 102 is designed so that a receiving element 437, which is configured as a soft plastic element and takes on the effect of a clamping sealing device, the riser 120 in a designated receiving opening in the compensator 420 'securely holds.

The end of the compensator housing 420 'extending through the beer barrel bore may also be held by a soft plastic holder 435 which is flange-shaped. Insofar, as it is here is a conditionally elastic element, thereby advantageously an additional explosion protection is provided, in the event that builds up in the barrel as a result of unwanted storage at high temperatures, an overpressure: When a certain pressure level is reached, then the soft plastic component is compressed and pressed together with the pressure tap attachment from the passage opening, and the beer under pressure can flow away.

Thus, the pressure tap attachment according to the invention provides a shapely, skilfully manageable, little space-consuming essay available, which makes it possible to apply the beer at the same time with CO ₂ to present it freshly foaming over the telescopic outlet device. An arrangement of a separate tap has been advantageously obsolete by the present invention. This eliminates the risk of canceling such a cock or the leakage of retractable taps, whereby an improved storage and handling of the device is ensured.

LIST OF REFERENCE NUMBERS

Pressure dispense paper 1, 101 Hood 1 ', 101' hood edge 1 ", 101" epee 102 Degen approach 102 ' carbon dioxide cartridge 3, 103 CO ₂ channel 103 ' lever assembly 104 lever 104 ' bracket 6, 106 stamp 8, 108 sealing element 9 Mandrel, axial bore 5, 5 ' camp 10,110 rocking lever 11,111 clearance hole 12 bridge element 13.113 First channel 14,114 membrane 16 room 17 Second channel 18,118 rounding 19,119 contact surface 19 ', 119' step bearing 22,122 riser 120 Recess, handle 121 Pressure relief valve 27 ribs 28,128 rising channel 300 Telescopic spout 301 Telescopic spout handle 301 ' Bierauslass 302 stop ribs 304 rotating mechanism 310 lever 311 Recess in hood 101 ' 312 axis of rotation 313 Plungers 314 wall 315 Recess of hood edge 101 " 316 valve device 320 pushpin 320 ' feather 321 joint 323 lifter 323 ' pressure nose 324 spring element 325 U-slot for education spring element 325 ' Overhang on pull pin 326 Annular element 327 stop element 330 pull pin 335 recess 335 ' Expanded recess 335 " Bierauslasskanal 336 seal 337 opening 401 valve device 420 Compensator housing 420 ' CO ₂ outlet piece 430 inner tube 431 Outer tube CO ₂ outlet piece 432 outlet bore 433 check device 434 Explosion-proof sealing flange 435 receiving element 437

Claims (12)

Pressure tapping attachment (1,101) for arrangement on a beer container, comprising
a sword (102) which has a CO ₂ channel (103 ') which can be brought into fluid communication with a CO ₂ cartridge (3, 103) by means of a valve arrangement by placing it in a hood (1', 101 ') of the pressure vessel. Tap attachment (1,101) - The CO ₂ cartridge (3,103) is inclined and arranged with a neck facing up and slidably disposed by an actuating device against a mandrel (5) for providing an opening channel, and - providing a bridge member (13,113) that bridges the opening of the CO ₂ cartridge (3,103) to a gas-inlet opening of the sword (102), a channel system, and the valve means from the CO ₂ cartridge CO ₂ via the CO ₂ channel (103 ') in the beer container, characterized in that the actuating device is a rotary mechanism (310) which is arranged in a recess (312) on a hood edge (1 ", 101") and on a vertical axis of rotation (313) feed means for providing a feed of the CO ₂ cartridge (3,103) against providing the mandrel (5),
wherein the pressure tapping attachment (1, 101) comprises a telescopic outlet pipe (301), which can be accommodated in the hood (1 ', 101'), whose end pointing into the hood (1 ', 101') can be turned into a valve arrangement (320, 420). which is fluidically connectable to a riser channel (300) extending into the sword (102) by a lever assembly (104) having a lever (104 ') pivotally mounted on an upper surface of the hood (1', 101 '). ), at whose end facing the valve arrangement (320, 420) there is a device which can be brought into operative connection with the valve arrangement (320, 420). Pressure tapping attachment (1,101) according to claim 1,
characterized in that
the valve arrangement (320, 420) is a pressure valve (320),
a pressure pin (320 ') which is arranged in a vertical recess of the valve housing, which is connected to the telescopic outlet pipe (301), and which releases an annular gap around the pressure pin (320') by depressing in the recess and providing a fluid path from the riser channel (300) to the outlet tube (301) via the annular gap, and wherein
the device on the lever arrangement (104) is a pressure nose (324) which, when the lever (104 ') is actuated, has a spring element (325) formed above the valve device (320) on the upper side of the hood (1', 101 '). in particular a leaf spring element (325) which is provided by a U-shaped slot (325 ') which is introduced into the hood (101'), and in operative connection with the pressure pin (320 '). Pressure tapping attachment (101) according to claim 1,
characterized in that
the valve assembly (320, 420) is a pull valve (420) disposed in a compensator housing (420 ') and including a vertically extending conical downwardly tapered recess (335') opening into the riser duct (300) opens at an upper portion in the telescopic outlet pipe (301), wherein in the recess (335 ') a pull pin (335) is arranged, which at its to the top of the hood (101') facing upper end of a spring (321 ) is held under pressure in the recess (335 ') and includes projections (326) extending radially near the top end, and wherein the operative connection of the lever assembly (104) with the pull valve (420) is provided by two on the lever assembly (104 ) is provided, which is hook-shaped from one end of the lever (104 ') about the pivot (323) rotatably in the direction of the projections (326) of the Zugstifts (335) extend and in operative connection with the lifters (326) can be brought. Pressure tapping attachment (101) according to claim 3,
characterized in that
the recess (335 ') in the Kompensatorgehäuse (420') in its upper end from the height of the mouth of the telescopic outlet pipe (301) has a widened portion (335 "), and that the draw pin (335) at the level of the junction of the Telescopic outlet pipe (301) has a shoulder, to which an annular member (327) around the inner body of the tension pin (335), wherein the spring (321) is received in an annular gap between the annular member (327) and the inner body , and wherein the height of the annular member (327) is lower than the height of the widened portion (335 ") of the recess (335 '). Pressure tapping attachment (101) according to claim 4,
characterized in that
around the annular element (327) abuts a sealing ring (337) at its upper end, in particular a sealing ring (337) which releases a vertical ventilation channel between the sealing ring (337) and the annular element (327) when the pull valve (420) in an open position. Pressure tapping attachment (101) according to at least one of claims 3 to 5, characterized in that
the lower portion of the compensator housing (420 ') the sword (102) having a sword lug (102') forms, from which the riser (120) and a vertical outlet portion of the CO ₂ passage (103 ') surrounding CO ₂ -Auslassstücks (430) extend adjacent to each other in the beer barrel. Pressure tapping attachment (101) according to claim 6,
characterized in that the riser (120) in which the rapier attachment (102 ') is surrounded by a sealing ring (437), - An outlet portion of the CO ₂ outlet piece (430) has a check valve device (434). Pressure tapping attachment (101) according to at least one of the preceding claims, characterized in that
the telescopic outlet pipe (301) - A handle (301 ') which is received in the non-use position in a recess (316) of the hood edge (101 ") and terminates flush with this, and / or - A stop element (330) which forms a stop of the telescopic outlet pipe (301) on an inner side of the hood 101 'and / or - Two parallel to a longitudinal axis of the telescopic outlet pipe (301) on opposite sides of the circumference of the same arranged stop ribs (304). Pressure tapping attachment (101) according to at least one of the preceding claims, characterized in that
the feed means are provided by a rotating mechanism (310), in particular a rotary lever (311), having an oval cross-section or
has a circular cross-section from which a tangential cantilever extends,
and which in a non-use position is flush with the hood edge (101 "),
wherein the rotary lever (311) about an axis of rotation (313) is rotatable to perform an impulsive movement against the bottom of the CO ₂ cartridge (103), and in particular by 180 ° in the counterclockwise direction is rotatable, and wherein the movement is an eccentric movement. Pressure tapping attachment (101) according to claim 8,
characterized in that
the rotary lever (311) and the handle (301 ') are arranged adjacent to each other, wherein in a non-use arrangement an edge of the handle (301') is in locking engagement with an edge of the rotary lever (311) for the rotary lever (311). Pressure tapping attachment (101) according to at least one of the preceding claims, characterized in that
Sealing means are provided around the rapier attachment (102 ') provided for placement in an insertion opening in the beer container, in particular a sealing flange (435) made of a plastic, in particular of an elastomer,
wherein a collar of the sealing flange (435) rests on a beer container top and wherein a thickness of the wall of the sealing flange (435) tapers at the side pointing into the beer container side. Pressure tapping attachment (101) according to at least one of the preceding claims, characterized in that
the bridge element (13, 113) comprises: - A present in a holding device mandrel (5) to which adjacent a through the holding device along a longitudinal axis (CC) extending bore (5 ') extends, wherein the CO ₂ cartridge (3,103) against the mandrel (5) axially displaceable is and a slidably mounted punch (8, 108) lying in a recess (107), a rocker arm (11, 11 1) having a first end abutting the slidably mounted punch (8, 108), a bridge part having a first channel (14, 14, 14) and a space (17) covered with a membrane (16), the channel (14,114) at a right angle to the longitudinal axis (CC) of the carbon dioxide cartridge (3,103), and with the membrane (16) covered space (17) at the carbon dioxide cartridge (3,103) facing away from the end of the channel (14,114) with a bore (12, 112) is arranged to be fluidically connectable, and wherein the membrane (16) bears against a second end of the rocker arm (11, 11) tiltably supported in the pressure tap attachment (101), the rocker arm tilted by the advanced plunger (8, 108) ( 11, 11 1) provides a fluidic connection of a second channel (18, 118) terminating in the sword (102) across the space (17) through the first channel (14, 14, 14) to the CO ₂ cartridge.

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