EP2261136B1 - Container for receiving a liquid-filled bag - Google Patents

Description

The invention relates to a container for receiving a filled with a liquid and provided with a discharge nozzle bag, comprising a wall which is provided with an opening intended for insertion of the outlet nozzle, and arranged in the region of the opening holding mechanism for axially fixing the outlet nozzle.

For the storage of liquids are increasingly rigid vessels such as barrels or bottles and flexible, z. B. made of films used vessels, which are hereinafter referred to as representative of all conceivable forms as a bag. Such bags have the advantage that they are easy and inexpensive. They serve in particular for the storage of fruit or vegetable juices, water or wine. The filling of the bags with the liquids is preferably carried out in the absence of air in the manner of vacuum packaging and with prior heating of the liquids, which brings with it the additional advantage of sterilizing or pasteurizing the liquids. Therefore, the liquids can be stored without preservatives for long periods of time without losing quality.

In order to allow easy removal of the liquids, the bags are provided with outlet openings at the edges of bag flanges with the bags protruding pipe sockets are welded. Particularly well-known for these purposes are also taps, which are provided with rear, insertable into the pipe socket, further pipe socket.

The filling of the bag can be done in two ways in particular. One way is to fill the liquids at the producer or bottling plant in the bags and to offer already filled bags with integrated taps. On the other hand, the other way is to bring empty bags, which are purchased and filled by the consumer, along with separate taps on the market. After filling the bag then the taps, also from the consumer, inserted into the pipe socket of the bag and locked in this. Since a separation of the taps from the pipe socket after locking practically impossible, the emptied bags are thrown away regardless of the nature of their filling along with the taps.

For the metered removal of liquids, the bags are often offered together with cardboard boxes (so-called bag-in-box systems), which have openings through which the pipe sockets and taps can be pulled outwards (eg. DE 34 44 429 A1 . DE 20 2004 008 672 U1 . EP 1 520 836 A1 ). However, such cardboard boxes have neither a visually appealing appearance nor ensure an axially fixed fit of the pipe socket in the openings. The taps are therefore neither wobble nor immovably stored on the cardboard boxes, which is why such bag-in-box systems meet neither private nor in the commercial sector all the requirements that are usually placed on a beverage container with tapping.

To avoid this disadvantage containers of the type described are known (eg. DE 31 39 978 A1 ), which have a fixed in a container wall, a tubular attachment piece, which receives a connected to the bag and provided with a nozzle spout and is fixed radially and axially. In addition, the arrangement is such that the nozzle and the spout can be pushed back by the attachment piece inwards into the container. This ensures that the container during its storage, for. B. in a refrigerator, no protruding and thus interfering parts. However, this is at the expense of a special design that does not allow an application of the common pipe sockets and taps and therefore costly.

Furthermore, in the EP 2 098 462 A1 a method of manufacturing a bag holder and a bag holder structure are described. It is a preferably made of a material such as cardboard collapsible and -klebbaren bag holder. The holder has an opening for receiving an outlet unit or a tap of a bag, which is bounded by two holding elements on diametrically opposite sides. In this case, one of the two holding elements to be moved to the other, whereby the opening is reduced and the nozzle of the bag is fixed in the opening. In this case, the introduction of the outlet unit into a recess in a positioning element is difficult, for which purpose a guide tool is used.

Also the GB 1 046 900 discloses a cardboard container in which there is a bag of liquid. An outlet unit with an actuating element can be used with a collar portion in a recess of a cover part, in which the collar portion is held by a cover part and a flap part. The flap part can be moved to the lid part, wherein the collar portion is fixed. The collar portion is held by two holding elements in an opening, wherein in each case a flange of the collar portion rests against the cover part, so that the outlet unit is received axially non-displaceable. However, a disadvantage is the multiple steps comprehensive insertion or positioning of the outlet unit in a removal position.

Based on this, the technical problem underlying the invention, the container of the type described above in such a way that it ensures an axially fixed seat of the tap with simple handling while maintaining the usual pipe sockets and taps and for a variety of different container shapes.

To solve this problem, the container of the type described is inventively characterized in that the holding mechanism has at least two, connected to the wall or connectable, arranged in an assembled state on diametrically opposite sides of the opening holding elements and by moving at least one of the holding elements optionally in an opening substantially freeing the opening and can be brought into a holding position in which the Holding elements spaced from each other, which is smaller than the diameter of the opening.

The invention has the advantage that a holding mechanism is provided, which is optionally adjustable in an open position substantially freeing the wall opening, which allows a passage of the outlet nozzle of a bag arranged in the container, or in a holding position reducing the diameter of the opening, in which a protruding from the opening portion of the outlet nozzle is detected and fixed axially. The retaining mechanism may be fixedly attached to the container or may form an additional component to the container.

Further advantageous features of the invention will become apparent from the dependent claims.

• Fig. 1 eine Vorderansicht eines erfindungsgemäßen Behälters mit einem fest angebrachten, erfindungsgemäßen Haltemechanismus;
• Fig. 2 eine Seitenansicht des Behälters nach Fig. 1;
• Fig. 3 einen Schnitt längs der Linie III - III der Fig. 1;
• Fig. 4 eine vergrößerte Einzelheit X der Fig. 3;
• Fig. 5 und 6 je eine Unteransicht und eine Seitenansicht eines ersten Halteelementes eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Haltemechanismus;
• Fig. 7 und 8 den Fig. 5 und 6 entsprechende Ansichten eines zweiten Halteelements des Haltemechanismus;
• Fig. 9 eine perspektivische Darstellung der Halteelemente nach Fig. 5 bis 8 während ihrer Annäherung bei der Montage;
• Fig. 10 den Haltemechanismus nach Fig. 5 bis 9 im zusammengesetzten Zustand;
• Fig. 11 den Haltemechanismus nach Fig. 5 bis 10 während des Einbaus in eine Behälterwand;
• Fig. 12 den Haltemechanismus nach Fig. 11 im fertig an der Behälterwand montierten Zustand; und
• Fig. 13 schematisch das Lösen des Haltemechanismus nach Fig. 12 von der Behälterwand.

The invention will be explained in more detail in connection with the accompanying drawings of exemplary embodiments, which are shown in different scales. Show it:

• Fig. 1 a front view of a container according to the invention with a firmly attached, holding mechanism according to the invention;
• Fig. 2 a side view of the container after Fig. 1 ;
• Fig. 3 a section along the line III - III of Fig. 1 ;
• Fig. 4 an enlarged detail of the X Fig. 3 ;
• FIGS. 5 and 6 depending on a bottom view and a side view of a first holding element of a second embodiment of a holding mechanism according to the invention;
• FIGS. 7 and 8 the FIGS. 5 and 6 corresponding views of a second retaining element of the holding mechanism;
• Fig. 9 a perspective view of the holding elements after Fig. 5 to 8 during their approach during assembly;
• Fig. 10 the holding mechanism after Fig. 5 to 9 in the assembled state;
• Fig. 11 the holding mechanism after Fig. 5 to 10 during installation in a container wall;
• Fig. 12 the holding mechanism after Fig. 11 in the mounted on the container wall state; and
• Fig. 13 schematically the release of the holding mechanism after Fig. 12 from the container wall.

According to a first, in Fig. 1 to 4 1, a cuboid container 1 according to the invention, a front wall 2, a rear wall 3, a bottom 4, a ceiling part 5, two side walls 6 and an inner space 7 (FIG. Fig. 3 ). The front wall 2 has a through opening 8 in a lower area. The rear wall 3 is z. B. slidably guided in upwardly or downwardly open grooves of the side walls 6 and can thereby be removed from the container 1. This serves in particular for the purpose of correspondingly filling a bag 9 filled with a liquid Fig. 3 to arrange in the interior 7.

The bag 9 is, as shown schematically in particular in Fig. 4 is shown, provided with a commercially available liquid-removal device having an outlet opening 10 and a liquid-tight attached to the edge, hereinafter referred to as bag flange 11, annular base plate having a bag 9 outwardly projecting, preferably circular cylindrical pipe socket 12 and with this z. B. forms a one-piece plastic injection molded part. Further, the removal device includes a nozzle 14, the rear side has a subsequently designated as a nozzle flange 15, annular support plate on which a rearwardly projecting, preferably circular cylindrical pipe socket 16 is mounted. The nozzle 14, the nozzle flange 15 and the pipe socket 16 are preferably made of a one-piece plastic injection molded part except for the moving parts of a non-illustrated dispensing valve.

The pipe socket 16 has a slightly smaller diameter than the pipe socket 12 and can therefore be inserted with little play axially in this until a pipe socket 16 attached, annular latching tongue 17 snaps from the inside behind the bag flange 11 and thus the parts 10 to 17 to a firmly connected extraction device connects. In this state, the two pipe sockets 12 and 16 are practically impossible to separate from each other, and the two flanges 11 and 15 are spaced from each other, which is typically about 18 mm at the removal devices on the market.

The opening 8 in the wall 2 is preferably dimensioned so large that its outer contour is greater than the outer contour of the tap 14 including the remaining parts of the removal device, and has z. B. a diameter of about 43 mm, while the largest diameter of the dispensing device in the region of the tap flange 15 z. B. is about 41 mm.

The arrangement of a liquid-filled bag 9 in the container 1 can be done for example in two ways. If a bag 9 already filled and provided with the removal unit attached to a structural unit is present, regardless of whether a filled bag 9 has been purchased or an empty bag has been filled by the consumer himself, then the bag 9 is moved into the interior 7 when the rear wall 3 is open introduced the container 1 and at the same time the removal device inserted through the opening 8 until the bag flange 11 rests against the inside of the wall 2 and the tap 14 according to Fig. 3 protrudes from the wall 2 to the front. A formed from the two pipe sockets 12 and 16, between the two flanges 11 and 15 arranged outlet nozzle of the removal device then passes through the opening 8 only partially, while a relatively large portion of it also protrudes forward from the opening 8. Alternatively, it would also be possible to insert an empty bag 9 with not yet mounted tap 14 in the container 1, to insert the pipe socket 12 through the opening 8 and only then to fill the bag 9 through the pipe socket 12, before finally the pipe socket 16 of the nozzle 14 is inserted until the locking tongue 17 engages in the pipe socket 12. Finally, it would also be conceivable to fill a bag 9 introduced empty into the container 1 through the already installed dispensing nozzle 14.

In any case, the problem arises that after insertion of the bag 9, neither the axial nor the radial position of the outlet nozzle 12, 16 fixed in the opening 8, since the outer diameter of the outlet nozzle 12, 16 also smaller than the inner diameter of the preferably circular opening 8 is. On the one hand, this leads to a shaky seat of the tap 14, which is undesirable in particular in the commercial sector, and on the other hand can even lead to the tap 14 passing through the opening 8 is pressed inwards into the container 1 and then is no longer accessible, which should be avoided.

According to the invention, therefore, a holding mechanism arranged in the region of the opening 8 is provided for fixing at least the axial, but preferably also the radial, position of the discharge nozzle 12, 16. This holding mechanism includes in the embodiment according to Fig. 1 to 4 at least two holding elements 18 and 19. A first holding element 18 is arranged at the lower edge of the opening 8 and fixed to the front of the wall 2, while a second holding element 19, relative to the opening 8, arranged on a first holding element 18 diametrically opposite side and slidably mounted on the front of the wall 2. Both holding elements 18, 19 are therefore raised from the wall 2 from. The possible directions of movement for the retaining element 19 are in Fig. 1 indicated by a double arrow v , ie only vertical displacements of the holding member 19 are possible in the embodiment.

The retaining element 19 can optionally be moved into an open position that essentially leaves the opening 8 open or in a holding position. The open position is in Fig. 1 indicated by dashed lines at the top and bottom of the support member 19. In this open position, the removal device can be inserted through the opening 8 in the manner described. In the in Fig. 1 By contrast, holding position shown by solid lines protrudes the end of the second holding member 19 facing the first holding member 18 partially into the opening 8, so that the distance between the facing ends of the holding elements 18, 19 is smaller than the diameter of the opening 8. If the opening 8 is therefore penetrated by a discharge connection 12, 16 of a bag 9 located in the container 1, then at least the end of the second holding element 19 facing the first holding element 18 projects into the intermediate position 20 (FIG. Fig. 4 ), which consists in the attack of the bag flange 11 to the rear side of the wall 2 between the nozzle flange 15 and the front of the wall 2, as in particular from Fig. 3 is apparent. As a result, the outlet nozzle 12, 16 is fixed axially in the opening 18, in particular when the thickness at least the retaining element 19 exactly corresponds to the distance between the nozzle flange 15 and the front of the wall 2 or in other words a distance a ( Fig. 3 ) between a front side of the retaining element 19 and a rear side of the wall 2 is equal to the length of the outlet nozzle 12, 16 or the distance between the two flanges 11, 15.

A radial fixation is achieved, for example, that the outer diameter of the pipe socket 12 is approximately equal to the inner diameter of the opening 8 and the outer diameter of the pipe socket 16 is approximately equal to the inner diameter of the pipe socket 12, so that these parts are mounted largely free of play in the mounted state.

As Fig. 1 shows, the mutually facing ends of the holding elements 18, 19 preferably concave contact surfaces 18a, 19a, which are formed with particular advantage semicircular and have substantially the same radius as the opening 8. As a result, the protruding from the opening 8 part of the outlet nozzle 12, 16 is at least partially surrounded by the support members 18, 19, whereby a beautiful appearance is achieved.

The displaceable mounting of the retaining element 19 on the wall 2 can be effected in various ways. In the exemplary embodiment, the wall 2 has two parallel to the direction of movement v slots 21 which are penetrated by fastening bolts 22, the z. B. consist of screwed from the inside in the retaining element 19 screws, in particular Fig. 3 shows. Alternatively, the retaining element 19 could be arranged on the wall 2 and at least partially in a formed on the front of the wall 2 guide groove and slidably guided in this.

Incidentally, it is clear that the removal of a deflated bag 9 and a re-insertion of a filled bag 9 z. B. thereby, that the first holding member 19 in Fig. 1 pushed upwards and thereby the opening 8 is released sufficiently far, so that the entire removal device to the inside can be pressed into the container 1.

While the embodiment is after Fig. 1 to 4 especially for container 1 made of wood and comparatively large wall thicknesses, show Fig. 5 to 13 An exemplary embodiment that is particularly suitable for thin-walled containers 23 (FIG. FIGS. 11 and 12 ) made of sheet metal or other thin material such. B. cardboard is suitable. In addition, show Fig. 5 to 13 an embodiment whose holding mechanism is formed in the manner of a clamp and not how Fig. 1 to 4 , firmly connected to the wall, but with a wall 24 ( FIGS. 11 and 12 ) connectable and easily separable from this again. Incidentally, the container 23 may be analogous to the container 1 and configured to receive the bag 9, not shown here.

According to Fig. 5 to 8 The holding mechanism facing the container 23 contains a first holding element 25 and a second holding element 26. Both holding elements 25, 26 are substantially semicylindrical in shape and provided with a slightly conical outer jacket. The first holding element 25 is immovably, but releasably connected to the wall 24, while the second holding member 26 can be slidably connected to the first holding member 25. For this purpose, the first holding element 25 has a preferably flat bottom surface 27, in which at least one, but preferably at least two blind holes 28 are incorporated, in accordance with Fig. 9 each positioning pin 29 is firmly inserted. This positioning pin 29 is in the wall 24 each have a bore 30 ( Fig. 11 ), which are arranged at the edge of the opening 8 corresponding opening 31. The holding element 25 can thus be placed in a position on the wall 24, which substantially the position of the holding element 18 on the wall 8 (FIG. Fig. 1 ) corresponds. In addition, the holding element 25 at least one, preferably at least two continuous, perpendicular to two end faces 33 extending holes 32.

The second holding element 26 has in each case at least one, preferably in two the end faces 33 associated, expedient also flat end surfaces 34 each a perpendicular to this extended blind bore 35 into which a locking pin 36 (in FIG. Fig. 9 ) is firmly inserted. The arrangement is in particular such that the second holding member 26 can be moved in the direction of the first holding member 25, that the locking pins 36 enter into the holes 32 until the mutual end faces 33, 34 plan and forming a tight, hardly from the outside visible butt joint 37 ( Fig. 10 ) lie on one another. In addition, the second holding element 26 has a bottom surface 38, which in the assembled state after Fig. 10 is arranged in a plane with the bottom surface 27 of the first holding member 25.

The two holding elements 25, 26 form a holding mechanism for the container 23 according to the invention and z. B. is applied as follows.

Having an in Fig. 11 only schematically indicated, filled with liquid bag 9 is arranged in the container 23 that its outlet nozzle 12, 16 extends through the opening 31 and the bag flange 11 rests against the inside of the wall 24, the first holding member 25 is placed on the front of the wall 24 , wherein the positioning pins 29 preferably enter into the holes 30 with a slight press fit and fix the retaining element 25 on the wall 24. Then, as in Fig. 11 is indicated by an arrow w , the second holding member 26 so approximates the first holding member 25 that its locking pins 36 enter into the holes 32 until a closed state of the clamp-like holding mechanism accordingly Fig. 12 results. The two holding elements 25, 26 lie in this state with their bottom surfaces 27, 38 on the front side of the wall 24 and enclose simultaneously with their inner lateral surfaces 39, 40 (FIG. Fig. 5 and 7 ) protruding from the opening 31 forward portion of the outlet nozzle 12, 16 in a space formed between the wall 24 and the nozzle flange 15 such that the tap flange abuts the outer sides of the holding elements 25, 26.

As in the embodiment according to Fig. 1 to 4 At least the thickness of the displaceable holding element 26 is dimensioned so that it is exactly a distance b ( Fig. 11 ) of the nozzle flange 15 from the front of the wall 24 corresponds. This ensures that the removal device for the liquid including Tap 14 is fixed axially immovably on the container 23. Unintentional release of the clamp-like holding mechanism is impossible in this state, because the nozzle flange 15 prevents outward displacements of the holding elements 25, 26.

If a release of the holding mechanism is desired, z. B. according to Fig. 13 the two ends of a U-shaped bent, made of wire od. Like. Opening tool 41 through the two holes 32 of the first support member 25 in the direction of aligned thereon blind holes 35 and pin 36 of the second support member 26 pressed. As a result, the second holding element 26 can be removed in the direction of an arrow x from the first holding element 25 and then the first holding element 25 can be removed from the wall 24. The opening 31 of the wall 24 is now exposed, so that the removal device can be pushed through the opening 31 inwardly into the container 23 and a deflated bag 9 can be replaced by a new, filled bag 9.

In addition to the advantages already described and apparent from the drawings, the holding mechanism according to the invention has the further advantages that for mounting or dismounting no screws od. Like. Needed, the nozzle 14 can be rotated arbitrarily in the holding position of the holding elements and the positioning pins 29 ( Fig. 9 to 12 ) fix the holding mechanism rotatably and immovably on the wall 24 and thereby simultaneously cause a radial centering of the outlet nozzle 12, 16 in the relatively large opening 31.

The invention is not limited to the described embodiments, which can be modified in many ways. For example, it is possible for reasons of improved appearance, in the outer sides of the holding elements 18, 19 and 25, 26 each have a circumferential fold 42 (FIG. Fig. 6 and 8th ), in which the nozzle flange 15 is inserted. The distances a ( Fig. 3 ) and b ( Fig. 11 ) should then be adjusted accordingly. To a lesser projection of the holding elements 18, 19 and 25, 26 to allow further between the back of the wall 2, 24 and the bag flange 11, an additional spacer ring of the holding mechanism can be arranged, in which case the thickness of the holding elements 18, 19, 25, 26 can be reduced by the thickness of the spacer ring. The shape and / or arrangement of the retaining elements is variable. In particular, z. B. both holding elements 18, 19 slidably disposed or more than two holding elements may be provided. Furthermore, it is clear that the holding mechanism according to the invention can also be used in combination with other liquid extraction devices and / or other outlet nozzles. It would be possible z. B., the movable support member 19 od instead by gravity with the aid of a spring. Like. Vorzuspannen in the holding position and the holding surfaces 18 a, 19 a form so that clamped against an out of the openings 8, 31 outstanding outlet. As a result, a non-positive instead of the described positive and immediately axially as well as radially acting fixation of the outlet nozzle is achieved. This is possible regardless of whether the holding elements z. In Fig. 1 are arranged with their axes vertical or horizontal or in any other direction. Further, it is expedient to choose at least the thickness of the movable holding elements 19 and 26 so that these holding elements exert a low axial force on the tap flange and thereby further improve the axial fixation. In addition, what is not shown, the bottoms of the container can be slightly inclined or provided with an inclined intermediate bottom to allow complete emptying of the bag 9, without the need for the entire container, the z. B. is hung on a room wall, must be placed at an angle. Finally, it is understood that the various features may be applied in combinations other than those described and illustrated.

Claims (17)

1. Container for receiving a bag (9) filled with a liquid and provided with an outlet nozzle (12, 16), containing a wall (2, 24), which is provided with an opening (8, 31) intended for the outlet nozzle (12, 16) to pass through, and a holding mechanism arranged in the region of the opening (8, 31) for axial fixture of the outlet nozzle (12, 16), characterised in that the holding mechanism has at least two holding elements (18, 19; 25, 26) connected or connectable to the wall (2, 24) and arranged on diametrically opposed sides of the opening (8, 31) in the assembled state and by moving at least one of the holding elements (19, 26) can be brought selectively into an open position that leaves the opening (8, 31) substantially free and a holding position, in which the holding elements (18, 19; 25, 26) are at a distance from one another, which is smaller than the diameter of the opening (8, 31), wherein the at least one of the holding elements (19; 26) is displaceable relative to the other holding element (18, 25) for adjustment of the holding position.
2. Container according to claim 1, characterised in that with outlet nozzles (12, 16) projecting through the opening (8, 31), the holding elements (18, 19; 25, 26) engage at least partially around a part of the outlet nozzle (12, 16) projecting out of the opening (8, 31).
3. Container according to claim 1 or 2, characterised in that the holding mechanism is provided on the front side of the wall (2, 24).
4. Container according to one of claims 1 to 3, characterised in that one of the holding elements (19) is displaceably mounted on the wall (2) and at least one further holding element (18) is rigidly fixed to the wall (2).
5. Container according to one of claims 1 to 4, characterised in that the holding elements (18, 19) are provided with concave abutment surfaces (18a, 19a) on facing ends.
6. Container according to claim 5, characterised in that two holding elements (18, 19) are provided and the abutment surfaces (18a, 19a) are semicircular in configuration.
7. Container according to one of claims 4 to 6, characterised in that the displaceable holding element (19) is mounted on the wall (2) by means of elongated holes (21) and fastening bolts (22) projecting through these.
8. Container according to one of claims 1 to 3, characterised in that the holding mechanism has two holding elements (25, 26) configured in the manner of a clip.
9. Container according to claim 8, characterised in that a first of the two holding elements (25) is connectable to the wall (24) in a non-displaceable manner and a second of the two holding elements (26) is displaceably connectable to the first holding element (25).
10. Container according to claim 9, characterised in that the first holding element (25) is provided with at least one positioning pin (29) intended for insertion into a hole (30) of the wall (24).
11. Container according to claim 9 or 10, characterised in that one of the two holding elements (25, 26) is provided with at least one hole (32) and the other holding element (26) is provided with at least one socket pin (36) insertable into this hole (32).
12. Container according to one of claims I to 11, characterised in that the two holding elements (25, 26) are provided on their front sides with a respective fold (42) intended for insertion of a flange (15) arranged on the outlet nozzle (12, 16).
13. Container according to one of claims 1 to 12, characterised in that at least one holding element (19, 26) has such a thickness that the sum of the thickness of the wall (2, 24) and the thickness of the holding elements (19, 26) is substantially equal to the length of the outlet nozzle (12, 16).
14. Container according to one of claims 1 to 13, characterised in that the holding mechanism is provided with an additional spacer ring and at least one of the two holding elements (19, 26) has such a thickness that the sum of the thickness of the wall (2, 24), the thickness of the spacer ring and the thickness of the holding element (19, 26) is substantially equal to the length of the outlet nozzle (12, 16).
15. Arrangement consisting of a container according to one of claims 1 to 14 and a bag (9) receivable therein, the outlet nozzle (12, 16) of which has a tap (14) and a tap flange (15) located on the rear side thereof on a front end and a bag flange (11) connected to an outlet nozzle (10) of the bag (9) on a rear end, wherein in an assembled state the two flanges (11, 15) are at a given distance (a, b) from one another, characterised in that the bag flange (11) abuts against the rear side of the wall (2, 24) at an edge surrounding the opening (8, 31), whereas in their holding position the holding elements (18, 19; 25, 26) engage at least partially around a part of the outlet nozzle (12, 16) projecting forwards out of the opening (8, 31), have a thickness corresponding to the distance between the tap flange (15) and the wall (2, 24) and thus secure the outlet nozzle (12, 16) and with it the tap (14) axially in the opening (8, 31).
16. Arrangement according to claim 15, characterised in that the arrangement is configured such that the holding elements (18, 19; 25, 26) also secure the outlet nozzle (12, 16) and tap (14) radially.
17. Arrangement according to claim 15 or 16, characterised in that a spacer ring is arranged between the bag flange (11) and the rear side of the wall (2, 24).

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