Adapter, dip tube arrangement and dispensing device

Abstract

Disclosed is an adapter (20) for providing a dip tube arrangement (30) in a container (40), a container (40), a dip tube arrangement (30), and a system. The adapter (20) comprises a sleeve (21) corresponding to a container neck (41) of the container (40). The adapter has a first open end (22) and a second open end (23). A connecting element (24) for fastening a dip tube (31) is arranged within the adapter (20).

Description

[0001] Adapter, riser pipe assembly and output device

[0002] The present invention relates to an adapter for providing a riser pipe arrangement in a container, a riser pipe arrangement with an adapter, a container comprising a riser pipe arrangement and a dispensing device for use with an adapter.

[0003] Numerous containers equipped with a dispensing device are known from the prior art. This dispensing device can, for example, be a pump. To eliminate the need for propellant gases, devices, particularly pumps, are provided to draw a liquid from the bottom of the container. For this purpose, a riser pipe typically extends from the dispensing opening to the bottom, through which the liquid can be drawn up or pumped out.

[0004] For some time now, society has had a desire to conserve resources and reuse everyday objects. For this reason, refillable systems have become established on the market. These systems typically provide a high-quality and durable container that can hold a liquid, such as hand soap. Such containers are typically equipped with a dispensing device, such as the pump dispenser mentioned above.

[0005] To reuse the system, the dispensing device is removed from the container, and a refill pack containing a product equivalent to the original is inserted into the container. The refill pack is often a thin film pouch, which uses significantly less material than the reusable container. During this refilling process, there is always a risk of contaminating the reusable container and / or spilling the product on the user.

[0006] The dispensing device is typically equipped with a dip tube, allowing the product to be drawn from the reusable container. Residue from the previous liquid in the container always adheres to this dip tube. Consequently, there is a risk of spillage for the user. Refilling requires removing the entire dispensing device, including the dip tube, which can be quite time-consuming.

[0007] Providing such dispensing devices also involves considerable effort in production. In particular, they must be transported separately, for example to the bottling line, ensuring that the corresponding dip tubes do not kink or become contaminated. This also necessitates a large volume of material for transport. Separating the dispensing devices, to which a dip tube is already attached, presents a logistical challenge, both during transport and at the bottling plant. This requires specialized equipment, such as a robot, to sort and remove the dispensing devices and insert them into the appropriate filling lines. Furthermore, there is a certain vulnerability to errors, for example, if dip tubes are lost in the filling lines, requiring them to be stopped.Inserting the dispensing devices, or their riser pipes, into the associated containers is complex and requires precise alignment of the respective elements. This makes the corresponding systems expensive and prone to errors. It is therefore an object of the invention to overcome at least one or more disadvantages of the prior art. In particular, an adapter for providing a riser pipe assembly in a container, and / or a riser pipe assembly with an adapter, and / or a container comprising a riser pipe assembly and / or a dispensing device for use with an adapter, is to be provided, which makes it possible to reduce transport and / or production costs and, in particular, to reduce contamination during the refilling process.

[0008] This problem is solved by the devices defined in the independent claims. Further embodiments are described in the dependent claims.

[0009] An adapter according to the invention for providing a riser pipe arrangement in a container comprises a jacket corresponding to a container neck. The adapter has a first open end and a second open end. A connecting element for attaching a riser pipe is arranged inside the adapter, preferably inside the jacket.

[0010] This allows a dip tube to be provided independently of a dispensing device. In particular, a suitable adapter enables the dip tube to be placed inside the container, so that the container can be supplied as a complete set comprising an adapter, a dip tube, and the container itself. The dip tube can thus be transported with the container and is simultaneously protected by it.

[0011] Such a set also relates to an aspect of the present invention. The connecting element can have a first section for receiving the riser tube and a second section for establishing a fluid connection with a dispensing device. Accordingly, a riser tube can be sealedly connected to a dispensing device by means of the adapter.

[0012] In particular, the first section may be designed to be tubular. A riser pipe can be easily connected to the connecting element by means of a corresponding tubular design, especially by axially inserting the riser pipe into the first section. It is provided that the inner diameter of the first section is slightly smaller than the outer diameter of the riser pipe, so that the riser pipe can be clamped in the first section.

[0013] The second section can additionally or alternatively also be tubular and in particular have a conically tapered seat.

[0014] A tapered seat allows for the creation of a simple connecting element which achieves a high sealing effect with minimal pressure, thus enabling a sealing connection between two elements, in this case, for example, the dispensing device and the adapter, so that a fluid connection can be established.

[0015] Preferably, the connecting element is connected to the adapter, in particular to the sleeve, such that the connecting element is arranged eccentrically to the adapter. Such an eccentric arrangement creates an area within the adapter or sleeve that remains open and accessible.

[0016] In particular, the connecting element is connected to the adapter or the jacket in such a way that a free space is formed within the adapter or jacket which extends over at least 50%, preferably over at least 70% and in particular over at least 80% of an inner circumference of the adapter or jacket.

[0017] By providing sufficient clearance, a container can be filled even if a suitable adapter, and therefore potentially a riser pipe, is already inside the container. Due to the eccentric arrangement of the connecting element, it requires relatively little space. This allows for faster filling of the container and reduces or prevents spillage of the contents during filling.

[0018] Preferably, the adapter is manufactured in one piece, particularly using injection molding.

[0019] The one-piece manufacturing process using injection molding enables cost-effective yet very precise production of the adapter.

[0020] Preferably, one wall of the casing is circularly cylindrical. This allows for simple and precise manufacturing.

[0021] It goes without saying that even with a circular cylindrical arrangement, a slight tightening of the surfaces may be provided, especially for manufacturing reasons, for example to make it easier to demold injection-molded products.

[0022] A draft angle, also called a demolding slope, from one end to the other end can also serve to make it easier to insert the adapter into a container, and to hold it in the container by applying slight pressure.

[0023] Additionally or alternatively, a chamfer can be formed at the first lower end. This facilitates the insertion of the adapter into the corresponding container neck. The adapter according to the invention is preferably designed to be inserted into a container neck with standardized dimensions (for example, 28 / 400, 28 / 410, PCO, CRP). The standardized dimensions are known to those skilled in the art in the field of packaging technology. An adapter inserted into the corresponding container neck conforms to the aforementioned standardization (also called neck standardization).

[0024] The adapter can have a retaining element at its second open end, wherein the retaining element is in particular designed as a radially extending collar circumferentially along the second end.

[0025] A suitable retaining element makes it possible to insert the adapter from above, for example into a suitable container, so that the collar rests on a suitable opening or the mouth edge of an opening and is thus held securely in at least one axial direction.

[0026] However, it can also be provided that this collar rests on a shoulder which is located inside the container neck. This can be particularly advantageous if the adapter is designed with a centering aid, as will be described below.

[0027] Preferably, the sleeve extends from the first open end to the second open end of the adapter. This results in essentially the entire adapter corresponding with the container neck. The adapter, and in this case the sleeve, fits snugly against the interior of the container neck. In other words, the adapter is designed as a sleeve that can be inserted into the container neck.

[0028] Alternatively, the adapter can be provided with a retaining element between its second open end and its first open end. This element is designed as a radially extending and circumferential collar. In this embodiment, the sleeve is formed between the retaining element and the first open end.

[0029] The functionality of the jacket is reduced to a portion of the adapter. The remaining part of the adapter, not intended for this purpose, can therefore be designed in any desired shape. Preferably, the free inner diameter of this remaining part of the adapter corresponds to the diameter of the container neck.

[0030] The collar itself can fulfill the same function as already explained. In its assembled state, this collar can rest on a corresponding opening, or rather, on the rim of an opening. This securely holds the adapter in at least one axial direction.

[0031] It may be provided that this collar extends towards the center of the adapter, so that the jacket acts and is arranged analogously to the jacket already described, i.e., can be inserted into a container neck and fits snugly against it.

[0032] Preferably, however, the collar extends outwards, so that the sheath has a larger diameter compared to the remaining adapter.

[0033] This allows the adapter to be connected to and thus attached to the externally located connecting means on the container neck.

[0034] It may be provided that a snap connection is formed on the casing. A snap connection can create a secure, leak-proof connection. Furthermore, a snap connection can also be designed such that the adapter is pressed or pulled onto the container under preload. The adapter thus has a substantially circumferential wall. The connecting element is located on and connected to this circumferential wall.

[0035] The surrounding wall can be an integral part of the sleeve, especially if the sleeve extends from the first open end to the second open end of the adapter. In this design, the connecting element is located directly on the sleeve.

[0036] In the embodiment where the retaining element is formed between the second open end and the first open end of the adapter, and the sleeve extends from the retaining element to the first open end, the remaining adapter is provided with a circumferential wall. In this case, the connecting element is arranged on the circumferential wall and not on the sleeve. Additionally, a rotation lock may be provided on the adapter, so that the adapter can only be inserted into the container within a specific positional range.

[0037] The position range can encompass a range of + / - 90°, but preferably it encompasses a range of + / - 30°. This applies in relation to the position relative to the container, starting from a central axis of a container opening.

[0038] Providing a positioning range allows for greater freedom during manufacturing, i.e., assembly, while simultaneously reducing accuracy requirements during use. Any sealing systems that may be installed can thus be protected from damage.

[0039] In a preferred embodiment, the anti-rotation device is designed such that the adapter can only be used in a single position. This anti-rotation device can, for example, be located in the area of ​​the casing and be designed, for instance, as a groove or a flat surface, with corresponding elements on the container. The anti-rotation device can additionally or alternatively also be located on the circumferential collar and engage with a corresponding element on the container. A press fit can also act as an anti-rotation device.

[0040] Preferably, the connecting element is recessed into the adapter with respect to the second open end. This means that the adapter has no protruding elements that could interfere with the environment.

[0041] In other words, the connecting element does not extend to the second open end of the adapter.

[0042] It may also be provided that a centering aid is arranged on the adapter. This serves to guide an output device during assembly and to align a corresponding counterpart to the connecting element, for example a plug.

[0043] The centering aid can be designed as a projecting element, which can also be multi-part and distributed around the circumference of the adapter. In particular, the centering aid can be designed in three parts and have several differently shaped projections extending in the direction of the adapter. These projections can preferably also have different lengths. The projections are designed to engage in corresponding windows on the dispensing device.

[0044] Another aspect concerns a riser pipe assembly. The riser pipe assembly comprises an adapter as described herein and a riser pipe. Such an assembly makes it possible to insert the riser pipe together with the adapter into a suitable container and to configure the desired container accordingly.

[0045] The riser pipe is preferably connected to the connecting element by means of a press connection. This can, for example, be a press connection provided by a tubular element on the adapter, wherein the inner diameter of this element is smaller than the outer diameter of the corresponding riser pipe.

[0046] Alternatively, it would also be possible to place a riser pipe over this tubular element. In this case, the inner diameter of the riser pipe would be slightly smaller than the corresponding outer diameter of the tubular element.

[0047] Accordingly, another aspect concerns a container with a riser pipe assembly as described here. This allows for the pre-assembly of a container before filling. By inserting the riser pipe assembly into a container, the riser pipe can be transported to a filling plant together with the container. The riser pipe is protected against both mechanical damage and contamination.

[0048] Another aspect concerns a dispensing device for use with an adapter as described herein. The dispensing device preferably has a plug for engaging the connecting element of the adapter. The dispensing device can, for example, be a pump device for dispensing a spray of thin liquids or, without a spray, for thicker liquids such as soaps.

[0049] A suitable dispensing device with a stopper allows the product to be supplied without a riser tube, unlike, for example, known dispensing devices from the prior art. Handling of the dispensing device is simplified, and the risk of, for example, the riser tube becoming dirty or damaged is eliminated. In this case, the riser tube and adapter are already integrated into the container and can be pre-assembled at the factory.

[0050] Preferably, the plug has a tapered end for operative connection with a corresponding conical seat. The corresponding advantages have already been described. In particular, such a conical connection between two elements allows for the creation of a reliable fluid connection.

[0051] The dispensing device may be designed to have a union nut for operative connection with the container, particularly with the container neck. The container, or its neck, usually has connecting elements, such as threads. A union nut is designed such that it can be brought into operative connection with these connecting elements.

[0052] In certain designs, especially if the adapter has a larger diameter casing, i.e., if a retaining element is formed between its second open end and its first open end, it may also be provided that the union nut can be brought into operative contact with connecting elements on the adapter, as already explained.

[0053] A centering device corresponding to the adapter's centering aid can be arranged on the dispensing device. As already explained, this allows for an aligned arrangement of the connecting element with a corresponding plug.

[0054] It is also conceivable that the dispensing device is also designed in two parts, so that it can be snapped onto a lower part already positioned in the container and secured with a union nut. In such a case, it is preferable that the union nut is an integral part of the adapter. The adapter housing and the union nut are thus arranged concentrically to each other and integrally connected by a retaining element.

[0055] The adapter may be provided with additional connecting means to connect the output device to it. In particular, a snap-fit ​​connection may be provided.

[0056] Another aspect concerns a set consisting of a container and a riser pipe assembly as described herein, as well as a dispensing device as described herein. With such a set, a container can be completely pre-assembled and ready for sale.

[0057] Before use, or after dispensing a product, the container and the dispensing device are connected. Particularly with an aligned adapter, a connection is preferably achieved simply by axially attaching the dispensing device to the container. Such a connection can be made, for example, by screwing or pressing the dispensing device onto the container. Alternatively, especially with reusable containers, a locking nut, as already explained, can be provided on the container or the dispensing device, which can be rotated independently of the dispensing device's position. This allows the dispensing device to be positioned on the container, and thus on the adapter, in a specific location, and then secured by tightening the locking nut.

[0058] The invention is explained below with the aid of schematic figures. These show:

[0059] Figure 1: A container;

[0060] Figure 2: a perspective view of an adapter; Figure 3: an orthogonal sectional view through the adapter according to Figure 1;

[0061] Figure 4: a perspective sectional view through a riser pipe arrangement;

[0062] Figure 5: the riser pipe arrangement according to Figure 4 in an orthogonal view;

[0063] Figure 6: a sectional view of a set consisting of a riser pipe assembly and a container;

[0064] Figure 7: a top view of the set from Figure 6;

[0065] Figure 8: an orthogonal sectional view through a complete system;

[0066] Figure 9: a sectional view of a set consisting of a riser pipe assembly and a container;

[0067] Figure 10: a sectional view through an adapter;

[0068] Figure 11: a sectional view through an adapter in the alternative embodiment according to Figure 10;

[0069] Figure 12 shows an adapter with a centering aid;

[0070] Figure 13A - E: a representation of a centering process;

[0071] Figure 14: a cross-section through an alternative design of an adapter;

[0072] Figure 15: a top view of the arrangement according to Figure 14;

[0073] Figure 16: a representation of an adapter with an alternative design of a centering aid;

[0074] Figure 16A-C: A representation of a centering process. Figure 1 shows a system 100 comprising a dispensing device 50, a container 40, and a riser pipe assembly 30 arranged within it. The container 40 is transparent. The dispensing device 50 is designed as a pump device, which enables the contents of the container 40 to be dispensed as a spray mist via the riser pipe assembly 30. It is understood that the dispensing device 50 can also be designed differently and that a spray mist need not be dispensed. The present illustration serves only as an example.

[0075] Figure 2 shows a perspective view of an adapter 20. The adapter 20 has a casing 21 and an internal connecting element 24.

[0076] Figure 3 shows an orthogonal sectional view through the adapter 20 according to Figure 2. The adapter 20 has a sleeve 21 that corresponds to a corresponding associated container neck (see, for example, Figure 6). The adapter 20 has a first open end 22 and a second open end 23. In this case, the sleeve extends from the first open end 22 to the second open end 23. A retaining element 28 is arranged at the second open end 23. The retaining element 28 is designed as a radially extending collar that circumferentially surrounds the second open end 23. The function of this collar will be explained below with reference to Figure 6.

[0077] The connecting element 24 is arranged within the adapter 20, and in this case within the sheath 21. As can be seen, the connecting element 24 is set back downwards with respect to the second open end 23.

[0078] In this embodiment, the shell 21 extends from the lower first open end 22 to the upper second open end 23. Thus, the shell 21 is formed as a circumferential wall. The connecting element 24 is arranged on the shell 21'.

[0079] The connecting element 24 has a first section 25, a second section 26, and a conical seat 27 located between them. The first section 25 is designed to accommodate a corresponding riser pipe. It is dimensioned such that the riser pipe, or rather its outer diameter, is larger than the inner diameter of the first section 25. This allows the riser pipe to be clamped in this first section 25. The first section 25 is therefore tubular in shape.

[0080] The second section 26 is also essentially tubular in shape and is designed to establish a fluid connection with a suitable adapter (see, for example, Figure 8).

[0081] Figures 2 and 3 also show that the connecting element is arranged eccentrically with respect to the entire adapter and, in particular, with respect to the sleeve 21. This arrangement leaves a free space within the adapter 20. This will be explained further below with reference to Figure 7.

[0082] Figure 4 shows a perspective sectional view through a riser pipe assembly 30 consisting of an adapter 20 and a riser pipe 31. The riser pipe 31 is held at one end in the first section 25 of the connecting element 24. The inner diameter of the first section 25 is slightly smaller than the outer diameter of the riser pipe 31. This allows the riser pipe 31 to be held in the first section 25 by clamping.

[0083] Providing a riser pipe assembly 30 makes it possible to provide the riser pipe 31 independently of a dispensing device (see Figure 1). Figure 5 shows the riser pipe assembly 30 according to Figure 4 in an orthogonal view. This illustration shows that, due to the eccentric arrangement of the connecting element 24 and the corresponding at least partially eccentric arrangement of the riser pipe 31, practically the entire inner diameter of the adapter 20 remains unobstructed.

[0084] Figure 6 shows a sectional view of a set consisting of a riser pipe assembly 30 and a container 40. The riser pipe assembly 30 is arranged in a container neck 41 of the container 40. The container neck 41 has an upwardly open end with an unspecified mouth rim. The retaining element 28 of the adapter 20 rests on this mouth rim. Accordingly, the adapter 20, and thus the riser pipe assembly 30, is held axially in the container neck 41.

[0085] To prevent the riser pipe assembly 30 from rotating relative to the container 40, the outer diameter of the adapter 20 is slightly larger than the inner diameter of the container neck 41. This allows the adapter 20 to be clamped in the container neck 41. Alternatively, the anti-rotation device can also be designed as shown in Figure 10.

[0086] Since the connecting element 24 is set back downwards relative to the second open end 23, this set can be positioned so that no parts protrude. This ultimately facilitates handling, for example in a production line, as the risk of snagging is reduced.

[0087] Figure 7 shows a top view of the set from Figure 6. As can be seen, the connecting element 24 is arranged eccentrically with respect to the entire cross-section. A free space F is thus provided within the shell 21, represented by the hatched area, which extends over at least 50% of an inner circumference U of the shell. In this case, the free space F extends over approximately 70% of the inner circumference U of the shell 21.

[0088] This measure ensures that a large part of the cross-section, analogous to the hatched area F, remains free, for example to provide the container with an initial filling, but also to allow the consumer to easily refill the container.

[0089] Figure 8 shows an orthogonal sectional view through the complete system 100. In this case, the system 100 comprises a dispensing device 50, a riser pipe assembly 30, and a container 40. The dispensing device 50 is shown only in outline. A plug 51 is located on the dispensing device 50, which is designed to interact with the second section 26 of the connecting element 24. As already explained, the second section 26 of the connecting element 24 is essentially tubular. Accordingly, the plug 51 has an outer diameter that is slightly larger than the inner diameter of the second section 26. In this case, a tapered end 52 is also formed at the end of the plug 51, which interacts with the conical seat 27 (see Figure 3). Alternatively, these two features can also be combined.

[0090] To attach the dispensing device 50 to the container, specifically to the container neck 41, a union nut 53 is provided on the dispensing device 50. This allows the dispensing device 50 to be axially mounted onto the container 40, thus connecting the plug 51 to the connecting element. Tightening the union nut 53 applies a corresponding preload to this connection. This creates a tight fluid connection between the dispensing device 50 and ultimately the riser pipe. The retaining element 28 can then also be clamped between the dispensing device 50 and the container 40.

[0091] Figure 9 shows a sectional view of a set consisting of a riser pipe assembly 30' and a container 40. The container 40 has a container neck 41' that differs from the container 40 already described. The riser pipe assembly 30 is arranged on the container neck 41' of the container 40. The container neck 41' has an upwardly open end with a mouth rim 42.

[0092] The adapter 20 ' of this set is designed differently compared to the adapter 20 of the set from figure 6.

[0093] The adapter 20' also has a first open end 22 and a second open end 23. The adapter 20' has a retaining element 28' which is arranged between the first open end 22 and the second open end 23. The retaining element 28' is designed as a circumferential collar extending radially outwards.

[0094] Below this retaining element 28', and thus between the retaining element 28' and the first open end 22, the sleeve 21' is formed. This sleeve 21' corresponds to the associated container neck 41'. As can be seen, the sleeve 21' is designed such that an unspecified projection is formed at its lower end, which forms a snap-fit ​​connection with the container neck 41'.

[0095] This can be designed such that the adapter 20' is pressed onto the container 40 under a preload. This makes it possible to implement an anti-rotation device. Alternatively, an anti-rotation device can also be designed as described in Figure 10.

[0096] The container neck 41' has no further elements for attaching, for example, a dispensing device. Rather, appropriate connecting means for this purpose are arranged on the adapter 20' itself, in this case on a circumferential wall.

[0097] The connecting element 24 is not arranged on the sheath 21 ', but on the circumferential wall above the retaining element 28 ' .

[0098] The retaining element 28' of the adapter 20' rests on the mouth rim 42. Accordingly, the adapter 20' and thus the riser pipe assembly 30 is held axially in the container neck 41.

[0099] The riser pipe arrangement, and thus the connecting element 24, is designed analogously to the embodiments described for the other figures. A repetition of this description is therefore omitted.

[0100] Figure 10 shows a sectional view through the adapter 20 from Figure 6, in which an anti-rotation device 43 with a position range is formed. The anti-rotation device 43 has a cam 44 formed on the container neck 41 and a groove 45 formed on the adapter 20. The groove 45 has a width several times that of the cam 44, so that the adapter is adjustable over an angular range of 45°. The position range thus corresponds to the angle that is made possible by rotating the adapter 20 along the groove.

[0101] Figure 11 shows a sectional view through the adapter 20' in the alternative embodiment according to Figure 10. An anti-rotation device 43 with a position range is also provided. In this embodiment, the anti-rotation device 43 has several cams 44', which are also formed on the container neck 41, but, unlike the cam 44 in Figure 10, are directed outwards. Several corresponding grooves 45' formed on the adapter 20' engage with each cam 44. The grooves 45' have a width several times that of the respective associated cam 44', so that the adapter is adjustable over an angular range of 20°, which corresponds to the position range in this embodiment.

[0102] Figure 12 shows a representation of an adapter 20 with a centering aid 54 on the adapter 20 and a centering device 55 on the output device 50. The output device 50 is only indicated schematically.

[0103] The adapter 20 is designed analogously to the adapter 20 from Figure 1. Additionally, a centering aid 54 is arranged on this adapter 20. As can be seen, the centering device 55 can be brought into engagement with the centering aid 54 before the plug 51 (see Figure 8) is brought into engagement with the connecting element 24.

[0104] A container associated with this adapter 20 is shown in the following figures. This container differs from the container 40 shown in Figures 1 to 8 in that a shoulder 46 (see following figures) is arranged inside the container neck.

[0105] The function and operation of this adapter and the centering aid are explained below with reference to figures ISA to 13 E.

[0106] Figure 13A shows an adapter 20'' arranged within a container neck 41''. The adapter 20'' has a sleeve 21'' and a retaining element 28, analogous to the retaining element in Figure 3. The retaining element 28 rests on a shoulder 46 formed inside the container neck 41''. A centering aid 54 on the adapter 20'' extends upwards from this retaining element 28 towards a dispensing opening of the container neck 41'', but does not project beyond it. A dispensing device 50 is only indicated in the present figure, and only the plug 51 and a centering device 55 are shown. A cap nut 53 is arranged on the dispensing device 50.

[0107] This union nut 53 is freely rotatable around the dispensing device 50. Figure 13A shows the dispensing device 50 and the container neck 41'' before assembly.

[0108] Figure 13B shows the dispensing device 50 after it has been placed on the container neck 41''. As can be seen, the centering aid 54 and the centering device 55 are not yet aligned with each other. Accordingly, one lower end of the dispensing device 50 rests on the centering aid 54. The dispensing device 50 cannot be moved into the container neck 41''. Consequently, in this position, the union nut is not yet engaged with a corresponding thread on the container neck 41''. The plug 51 is also not yet engaged with the connecting element 24 and likewise not yet aligned with it.

[0109] Figure 13C shows the next step. The user now rotates the dispensing device 50 until the centering device 55 and the centering aid 54 are aligned, thus allowing axial movement of the dispensing device 50 and the container neck 41'' relative to each other. In this position, the plug 51 and the connecting element 24 are also aligned.

[0110] This allows the plug 51 to be brought into engagement with the connecting element 24 by axially moving the dispensing device 50, as shown in Figure 13D.

[0111] In Figure 13D, the user has also begun to turn the union nut 53 and to bring it into contact with the neck 41 '' and the connecting means arranged thereon, in this case a thread.

[0112] Figure 13E shows the state when the dispensing device 50 is fully mounted on the container neck 41''. Tightening the union nut 53 presses a seal 56, which is arranged on the dispensing device 50, onto a container opening 42 of the container neck 41''.

[0113] Figure 14 shows a cross-section through an alternative embodiment of an adapter 20''. The adapter 20'' is essentially analogous to the adapter 20 shown in Figure 1. However, unlike the adapter 20 in Figure 1, an integrally manufactured union nut 53 is attached to the retaining element, which extends radially outwards from the sleeve 21''. The union nut 53 and the adapter 20'' are formed in one piece. The adapter 20'' also has a sleeve 21'' that fits snugly inside a container neck 41.

[0114] The connecting element 24 is shown within the adapter 20 ' ' ' and also within the casing 21 ' ' '. A riser pipe is not shown. The connecting element 24 is arranged eccentrically within the adapter 20 ' ' '.

[0115] Also shown is a dispensing device 50 with a plug 51 and a seal 56. In the present case, the dispensing device 50 can be snapped onto the adapter 20 in the axial direction.

[0116] This design also allows the dispensing device 50 to be provided separately, but without the riser tube, and the riser tube to be positioned inside the container. After the container has been filled, the dispensing device 50 can be pressed onto the container or onto the adapter 20 ' ' ', so that the dispensing device 50 is permanently connected to the adapter 20 ' ' '.

[0117] For the user, nothing changes. They can remove the dispensing device 50 together with the riser tube from the container and refill it accordingly. However, manufacturing is significantly simplified, as the riser tubes can already be installed in the containers at the factory.

[0118] Figure 15 shows a top view of the adapter 20 ' ' ' with an output device 50 attached therein. As can be seen, the contour of the output device 50 and the contour of the adapter 20 ' ' ' are asymmetrically formed, so that these two parts can only be connected to each other in one position.

[0119] Figure 16 shows an adapter 20'' analogous to the adapter 20'' from Figure ISA in a perspective view. The adapter 20'' from Figure 16 is also intended to be arranged inside the container, like the adapter 20'' from Figure ISA.

[0120] A union nut and the corresponding container are not shown in Figures 16 to 16C. The design and function of these elements correspond to those described for Figures 13 to 13E.

[0121] The adapter 20'' of Figure 16 differs from the adapter 20'' of Figure 13 in that the centering aid 54 and the centering device 55j are each designed in multiple parts and, in this case, have two further projections 56 and 56' or two further windows 57 and 57'. These projections 56 and 56' and windows 57 and 57' are designed to engage with one another. Figure 16 shows the adapter 20'' and the associated dispensing device 50 in a state in which both elements are fully operatively connected.

[0122] Figures 16A to 16C now show the process of how the two elements are brought into operative connection and can be centered accordingly.

[0123] Figure 16A shows the dispensing device 50 after it has been placed on the container neck. As can be seen, the centering aid 54 and the centering device 55, as well as the projections 56 and 56' and the windows 57 and 57', are not yet aligned with each other.

[0124] The projections 56 and 56' have a longer axial extension than the centering aid 54. Therefore, they come into contact with the corresponding windows 57 and 57' sooner than the centering aid 54 comes into contact with the centering device 55.

[0125] Accordingly, a lower end of the dispensing device 50 rests on the projections 56 and 56'. The dispensing device 50 cannot be moved into the container neck. Consequently, in this position, a union nut is not yet engaged with a corresponding thread on the container neck, analogous to the representation of the union nut in Figure 13B. The plug 51 is also not yet engaged with the connecting element 24, nor is it yet aligned with it.

[0126] By rotating the dispensing device 50, the projections 56 and 56' can be brought into operative contact with each other, so that a pre-orientation of the dispensing device 50 takes place with respect to the adapter 20''. Subsequently, a situation is given as shown in Figure 13B.

[0127] Figure 16B shows the next step. The user now rotates the dispensing device 50 until the centering device 55 and the centering aid 54 are aligned, thus allowing axial movement of the dispensing device 50 and the container neck relative to each other. In this position, the plug 51 and the connecting element 24 are also aligned.

[0128] This allows the plug 51 to be brought into engagement with the connecting element 24 by axially moving the dispensing device 50.

[0129] Figure 16C now shows the state when the dispensing device 50 is fully applied to the container neck. This corresponds to the state and operation as described for Figure 13E.

[0130] All projections 56, 56' and the centering aid 54 engage in the corresponding windows 57 and 57' as well as the corresponding centering aid 55. The connecting element and the plug are also connected.

Claims

Patent claims 1. Adapter (20, 20', 20'', 20'') for providing a riser pipe arrangement (30) in a container (40), comprising a jacket (21, 21', 21'', 21'') corresponding to a container neck (41, 41', 41'') of the container (40), wherein the adapter (20, 20', 20'', 20'') has a first open end (22) and a second open end (23), characterized in that the jacket (21, 21', 21'', 21'') between the first open end a connecting element (24) for attaching a riser pipe (31) is arranged at the open end (22) and the second open end (23) and within the adapter (20, 20', 20'', 20'') , preferably within the jacket (21, 21', 21'', 21'') , wherein the connecting element (24) is connected to the adapter (20, 20', 20'', 20'') such that the connecting element (24) is eccentric to the adapter (20, 20', 20'').20 ' ' ' ) is arranged ., 2. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to claim 1 , characterized in that the connecting element ( 24 ) has a first section ( 25 ) for receiving the riser tube ( 31 ) and a second section ( 26 ) for making a fluid connection with a dispensing device ( 50 ).

3. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to claim 2 , characterized in that the first section ( 25 ) is tubular . Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to claim 2 or 3 , characterized in that the second section ( 26 ) is tubular and in particular has a conically tapered seat ( 27 ).

4. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to one of claims 1 to 4 , characterized in that the connecting element ( 24 ) is connected to the adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) such that a free space ( F) is formed within the adapter ( 20 ) which extends over at least 50%, preferably over at least 70% and in particular over at least 80% of an inner circumference (U) of the adapter ( 20 ).

5. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to one of claims 1 to 5 , characterized in that the adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) is manufactured in one piece, in particular by injection molding.

6. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to one of claims 1 to 6 , characterized in that a wall of the mantle ( 21 , 21 ' , 21 '' , 21 '' ' ) is cylindrical in shape .

7. Adapter ( 20 , 20'' ) according to one of claims 1 to 7 , characterized in that the adapter ( 20 ) has a retaining element ( 28 ) at its second open end ( 23 ), wherein the retaining element ( 28 ) is in particular designed as a radially extending collar circumferentially along the second end ( 23 ).

8. Adapter ( 20 , 20 '' ) according to claim 8 , characterized in that the sheath ( 21 , 21 '' , 21 '' ' ) extends from the first open end ( 22 ) to the second open end ( 23 ).

9. Adapter ( 20 , 20 ' , 20 '' ' ) according to one of claims 1 to 7 , characterized in that the adapter ( 20 ) has a retaining element ( 28 ' ) between its second open end ( 23 ) and its first open end ( 22 ) which is designed as a radially extending and circumferential collar, such that the sleeve ( 21 ' ) is formed between the retaining element ( 28 ' ) and the first open end ( 22 ).

10. Adapter ( 20 , 20 ' , 20 '' ' ) according to claim 10 , characterized in that the collar ( 28 ' ) extends radially outwards, so that the sleeve ( 21 ' ) has a larger diameter compared to the remaining adapter ( 20 20 ' , 20 '' ).

11. Adapter ( 20 ' ) according to claim 10 or 11 , characterized in that a snap connection is formed on the sheath ( 21 ' ).

12. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to one of claims 1 to 12 , characterized in that a rotation lock ( 43 ) is arranged on the adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) so that it can only be inserted into the container ( 40 ) in a position range .

13. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to claim 13 , characterized in that the position range comprises a range of + / - 90° , preferably + / - 30° .

14. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to one of claims 1 to 14 , characterized in that the connecting element ( 24 ) is recessed into the adapter ( 20 ) in relation to the second open end ( 23 ).

15. Adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to one of claims 1 to 15 , characterized in that a centering aid ( 54 ) is arranged on the adapter ( 20 ).

16. Riser pipe arrangement ( 30 ) comprising an adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) according to any one of claims 1 to 16 and a riser pipe ( 31 ) .

17. Riser pipe arrangement ( 30 ) according to claim 17 , characterized in that the riser pipe ( 31 ) is connected to the connecting element ( 24 ) by means of a press connection .

18. Container (40) comprising a riser pipe arrangement (30) according to one of claims 18 or 19.

19. Dispensing device (50) for use with an adapter (20, 20', 20'', 20'') according to one of claims 1 to 16, characterized in that a plug (51) for engaging the connecting element (24) of the adapter (20, 20', 20'', 20'') is formed on the dispensing device (50).

20. Dispensing device ( 50 ) according to claim 19 , characterized in that the plug ( 51 ) has a tapered end ( 52 ) for operative connection with an associated tapered seat ( 27 ).

21. Dispensing device ( 50 ) according to claim 19 or 20 , characterized in that the dispensing device ( 50 ) has a union nut ( 53 ) for operative connection with the container ( 40 ) , in particular with the container neck ( 41 , 41 '' ) .

22. Dispensing device ( 50 ) according to one of claims 20 to 22 , characterized in that a centering device ( 55 ) corresponding to the centering aid ( 54 ) of the adapter ( 20 , 20 ' , 20 '' , 20 '' ' ) is arranged on the dispensing device ( 50 ).

23. Dispensing device ( 50 ) according to one of claims 20 to 23 , characterized in that it is designed in two parts .

24. Set ( 100 ) comprising a container ( 40 ) and a riser tube arrangement ( 30 ) according to one of claims 17 or 18 and a dispensing device ( 50 ) according to one of claims 20 to 24 .

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