EP3663455B1 - Dosing storage device and sets with same - Google Patents

Description

FIELD OF APPLICATION AND PRIOR ART

The invention relates to a dosing reservoir for accommodation in a washing drum for the purpose of dispensing liquid detergent during a washing process, and sets with such a dosing reservoir.

A typical dosing storage device has an outer housing with an interior space that includes a receiving space for receiving detergent that is to be dispensed. The outer housing of such a dosing store has at least one outlet opening through which detergent can be discharged from the receiving space into the washing drum without pressure.

Such a dosing store is usually filled with a liquid detergent from a store before a washing process and then transferred to a washing drum. During a washing process, it remains in the washing drum and releases the liquid detergent held in it to the washing water or the laundry to be washed.

From the DE 3902355 A1 a dosing reservoir with an outer housing is known which, in an interior space, includes a receiving space for receiving detergent to be dispensed. The dosing reservoir includes a filling opening that can be closed by a cover. From the EP 0 328 784 A1 and the WO 99/41442 A1 dosing reservoirs are known in which the filling opening can be closed by a part of the outer housing which has the function of a lid. For each filling, the dosing store must be opened in order to transfer the detergent into the receiving space of the dosing store.

DE 10 2010 028 353 A1 describes a further dosing system for dispensing at least one preparation into a rotating treatment chamber of a water-bearing household appliance, the dosing system being detachably connectable in communication with a storage container in which more than one portion of a preparation can be stored and the dosing system and/or the storage container comprising means, which, in the coupled state of dosing system and reservoir, cause at least one preparation to be conveyed from the reservoir into at least one receiving space of the dosing system.

TASK AND SOLUTION

The object of the invention is to provide a dosing reservoir which can be used in particular in a washing drum for the purpose of dispensing liquid detergent during a washing process and which allows better handling of the filling process.

It is proposed here to further develop a dosing reservoir mentioned at the outset such that it has a filling opening accessible from an underside of the dosing reservoir and a coupling device for coupling to a reservoir. The metering store according to the invention also has a manually operable pump device for generating a negative pressure at the filling opening and thus for sucking detergent from the storage tank into the metering store.

For this purpose, the dosing reservoir has an actuating handle that can be pressed in on the outside of the outer housing, by means of which the said pumping device can be actuated, so that a pumping chamber of the pumping device can be changed volumetrically and as a result generates the negative pressure at the filling opening.

A dispenser according to the invention can be filled particularly easily with metered quantities of a liquid detergent from the reservoir. For this purpose, the dosing reservoir comprises the mentioned filling opening accessible from an underside and the mentioned coupling device, by means of which the dosing reservoir can be placed on the reservoir for filling and thereby be coupled to the reservoir in a communicating manner. He also has the aforementioned manually operable pump device, by means of which the detergent can be sucked in the coupled state from the reservoir. This pumping device is very easy to handle because it can be operated manually from an outside without any preparatory steps. This actuation preferably takes place downwards and thus in the direction of the reservoir. So you simply press down on the coupled dosing reservoir to suck in detergent.

By integrating a pump device, the dosing reservoir can be filled from commercially available storage reservoirs. Such reservoirs are usually bottles for liquid detergent with a volume of 250 ml to 10 l, preferably with a volume of 2 l to 6 l. The dosing reservoir can be filled from this reservoir, with its receiving space for receiving detergent preferably being between 10 ml and 500 ml, preferably 50 ml to 150 ml.

In order to be able to see how much detergent is already in the dosing store, the outer housing of the dosing store can be partially transparent so that the fill level can be seen from the outside. There is also the possibility that the outer housing has a measuring scale or a level marking having. For a particularly cost-effective implementation of the proposed dosing reservoir, it is preferred that the dosing reservoir is made of a plastic.

Said manually operable pump device is designed in such a way that it can convey liquid detergent from the reservoir into the receiving space in the interior of the dosing reservoir. The pump device can be a classic pump device that has a pump chamber with an inlet valve that opens as a function of pressure and an outlet valve that opens as a function of pressure, which open and close alternately when detergent is sucked in from the reservoir and when the previously sucked detergent is released into the receiving space will. In its simplest form, the pumping device of a dosing reservoir according to the invention is at least designed in such a way that it generates a suitable negative pressure, as a result of which the detergent is sucked into the dosing reservoir. The negative pressure generated is applied to the filling opening and causes the detergent to be sucked out of the reservoir. It is preferred to use a pump device that does not require complex valves. Such a pumping device is explained below.

With normal use of the dosing store according to the invention, a single or multiple pump actuation can be provided in order to fill the dosing store for a washing process. By repeated pump actuations, partial volumes of the detergent of substantially the same size can be pumped into the receiving reservoir of the dosing reservoir.

For the purpose of suction, the pumping device has the pumping chamber mentioned within an outer housing of the dosing reservoir, which is designed in such a way that it can be volumetrically influenced by manual actuation of an actuation handle. It is particularly preferred that the volume of the pump chamber can first be reduced in order to then be enlarged again manually or by the action of a restoring spring device. This second step of enlarging the pump chamber creates a negative pressure inside the pump chamber, which sucks in the detergent from the reservoir. The excess pressure generated in the pump chamber during the previous volumetric reduction in the pump chamber can be transferred to the reservoir in order to support the delivery of the detergent. In an alternative design, however, there is also the possibility of allowing this excess pressure to escape into the atmosphere through a valve. The pump chamber can be formed by the entire interior of the outer housing or by a portion thereof. Possibilities for this are explained in more detail below.

The pumping device is designed and/or arranged in such a way that it can be actuated without first opening the dosing store. The pumping device can be actuated in particular by an elastically deflectable actuating handle on the dosing store or by a rigid actuating surface or an actuating lever.

The dosing reservoir is preferably essentially spherical. Such a configuration is particularly easy to handle. In addition, this can be advantageous so that the dosing storage device inside the washing drum does not damage the laundry to be washed during the washing process or catches on the laundry to be washed. In addition, other designs are conceivable, such as a cubic. The dosing reservoir preferably has a maximum inner diameter of 4 cm to 20 cm, preferably 6 cm to 12 cm. The interior preferably has a volume of 30 cm ³ to 4,200 cm ³ . The receiving space of the dosing store preferably has a volume of 10 cm ³ to 2,500 cm ³ . The volume of the receiving space is preferably between 30% and 60% of the volume of the entire interior of the dosing reservoir.

Corresponding to a conventional dosing store, the outer housing of the dosing store has at least one outlet opening through which detergent can be discharged from the receiving space into the washing drum without pressure. When the coupling device points downwards, the at least one outlet opening is preferably located above the receiving space for the detergent to be dispensed, in order to prevent the detergent from being dispensed before a washing process. There is preferably a plurality of outlet openings. The plurality of outlet openings is preferably distributed over the outer housing, so that an even delivery is possible regardless of the position of the dosing reservoir. In the case of a plurality of outlet openings, it is preferred that the outlet openings are arranged essentially on a common and in particular horizontal plane. The dosing reservoir preferably has three, particularly preferably six, outlet openings. The outlet opening or the outlet openings can be designed to be closable. This is preferred when the pumping chamber of the pumping device is formed by the entire interior of the dosing reservoir.

So that the detergent can be dispensed into the washing drum without pressure, the at least one outlet opening is dimensioned in such a way that the detergent or a detergent-water mixture can flow out of the metering reservoir. The at least one outlet opening is preferably designed in such a way that the detergent can also be dispensed without the centrifugal forces that prevail when the washing drum rotates. A minimum clear cross-sectional area is preferred the at least one outlet opening of 4 mm ² , preferably at least 10 mm ² .

As already explained at the outset, the dosing store is equipped with a coupling device which is used for coupling to the supply store. It is preferred that the coupling device is designed in such a way that the metering store can be placed on the storage store in the manner of a cap. With such a configuration, the dosing store can be coupled to the storage store in a simple step by being placed on the storage store from above.

In the simplest case, the coupling device has a sealing surface that corresponds to the reservoir and a coupling device provided on it, so that a suction path that is essentially sealed to the outside is created, through which the detergent can be sucked from the reservoir into the dosing reservoir without the negative pressure being released of the pumping device can be compensated for by the atmosphere. Since very precise dosing is usually not important, it is sufficient if the suction path is sufficiently tight to allow delivery. Smaller leaks are therefore harmless, although in the ideal case complete tightness is sought.

Preferably, the coupling device includes an axial securing device, so that the dosing store on the reservoir is secured in a non-positive or positive manner to prevent it from being accidentally pulled off. For this purpose, the coupling device can comprise a snap connection, which causes the axial securing of the dosing store.

Particularly preferably, this axial securing can be created by a coupling bayonet or thread. A coupling device that limits the rotational movement is advantageous. In the case of a thread, this is the case, for example, since the dosing reservoir can only be screwed onto the storage reservoir up to an axial stop and further rotation beyond this is then prevented. The purpose of the rotational movement limitation mentioned will be explained below.

An alternative and likewise very simple coupling device comprises a web or a groove which, with a groove or a web on the side of the coupling device on the reservoir, enables a rotational movement-limiting coupling of the dosing reservoir.

Different configurations of the coupling device are discussed in detail below.

As explained above, the filling opening communicates with the reservoir in the coupled state, so that the tight or largely tight suction path is created between the dosing reservoir and the reservoir. The negative pressure generated in the pump chamber when the pump device is actuated can suck in the detergent from the reservoir through the filling opening. For this purpose, the pump chamber is in operative connection with the filling opening at least in phases, so that the negative pressure acts up to the reservoir. It can be preferred that for this purpose there is a riser pipe in the reservoir which extends below the liquid level of the detergent so that the detergent can be drawn in.

The filling opening is preferably provided at an inner end of a receiving shaft extending from below into the dosing reservoir. The accommodating shaft is provided for accommodating an outlet connection piece of the reservoir. The receiving space can extend annularly around the receiving shaft.

In this configuration, the receiving shaft extends vertically upwards from the underside of the dosing store, as a result of which an annular area is formed around the receiving shaft in the interior of the dosing store. The receiving shaft is formed by a peripheral wall that surrounds an open area. The filling opening is provided at the end of this receiving shaft and is therefore set higher than a bottom of the dosing store. This prevents stored detergent from being inadvertently released from the receiving space through the filling opening of the dosing store before and during transfer into the washing drum. An alternative or additional measure to ensure this is the provision of an inlet valve at the filling opening, which prevents detergent from escaping undesirably from the interior of the dosing reservoir.

The free area of the receiving shaft is also used for the coupling receiving of an outlet connector of the reservoir. The dosing reservoir is placed on the outlet socket for coupling to the storage reservoir and is secured there by means of coupling devices which are preferably provided on both sides and are adapted to one another.

The filling opening is provided at the end of the above-mentioned receiving shaft. Here, an end wall is preferably provided at the inner end, which is penetrated by the filling opening. It is particularly preferred that this end wall tapers upwards in the direction of the filling opening. The end wall can taper conically. However, configurations are also possible in which the end wall tapers upwards in stages, for example. The filling opening is thus arranged at a particularly high or even the highest point of the receiving shaft. As a result, the detergent sucked in after a pumping process can run off into the receiving space and a return to the reservoir is minimized or prevented.

The dosing reservoir preferably has at least one screen for closing the at least one outlet opening. This screen can be displaced relative to the outlet opening between a closed position covering the outlet opening and an open position releasing the outlet opening.

In its open position, the panel allows detergent to pass through the outlet opening. In the closed state, this is prevented or at least made more difficult. The screen can temporarily prevent the detergent from being dispensed by the screen being displaced relative to the outlet opening in such a way that it closes it, in particular covers it from the inside. This means that the dosing reservoir cannot be accidentally emptied prematurely during a filled transport.

In an embodiment of the dosing reservoir with this screen, a separate cover of the reservoir can be dispensed with, since this can instead be closed with the screen by means of the dosing reservoir that can be used in the manner of a cap. In such a case, the dosing store takes on a dual function as a cover or occasionally used dosing store in the washing drum.

The shade may be displaceable between the closed position and the open position by manual intervention. There is the possibility that a switching element that is separate from the outer housing can shift the shutter between the closed position and the open position. The screen is preferably designed in such a way that it changes into the closed position as a result of the coupling process with the reservoir. It is also preferred that the panel is designed in such a way that it changes into the open position when it is uncoupled.

There is the possibility that the panel can be displaced between the closed position and the open position by a switching element inside the outer housing when it is coupled.

However, particularly in the case of an embodiment of the outer housing which comprises a plurality of housing parts, it can be preferred that the screen changes between the closed position and the open position by displacing these housing parts with respect to one another. In a further embodiment, the screen can be closed by the actuation handle of the pump device during actuation of the pump device.

In an embodiment with a large number of outlet openings, the at least one screen can be designed in such a way that the outlet openings can be closed individually or in groups. It is preferred, however, that in an embodiment with a plurality of outlet openings, at least two screens can always be moved together and preferably with a single screen element, on which the screens are provided in one piece, between the closed position and the open position. It is preferred that, in the case of an embodiment with a plurality of outlet openings, all the screens can be displaced together in order to switch between the closed position and the open position with one movement.

The pumping device can be of particularly simple design as a result of the aperture mentioned, since the interior of the dosing reservoir can also be used as a pumping chamber when the aperture is in the closed state. In such a configuration, the screen is preferably designed in such a way that it closes the outlet opening in an essentially airtight manner. As a result, the negative pressure generated in the pump chamber can be used to suck in the detergent. Even in a configuration in which, due to an isolated pump chamber, sealing of the outlet opening by the screen is not absolutely necessary, sealing can be advantageous in order to prevent the detergent from passing through the outlet opening. The tightness requirements for the screen can be lower in such a configuration.

In a preferred embodiment, the outer housing can have two partial shells that are accessible from the outside, namely an upper partial shell and a lower partial shell. These partial shells are coupled to one another.

The partial shells can be coupled to one another in such a way that the dosing store can be opened. In this case, the partial shells can either be completely separated from one another or have a hinge, as a result of which the dosing store can be opened.

Particularly preferably, however, the two partial shells are coupled to one another in such a way that they can be moved relative to one another without the dosing store being opened as a whole. Such a closed relative mobility is particularly suitable for a design in which the displacement of the screen relative to the outlet opening is brought about by displacement of the partial shells relative to one another. Such a coupling of the two partial shells can include, for example, guide grooves and/or guide webs in the edge area of the partial shells, which together form a guide.

In such a design, the at least one outlet opening is preferably provided on one of the partial shells, preferably the upper one, and the at least one screen is provided on the other partial shell. In such a configuration, the partial shells can be moved relative to one another in the coupled state between a first relative position and a second relative position. With such a configuration, the partial shells do not have to be separated from one another and/or opened up in order to switch between the first relative position and the second relative position. In the first of the stated relative positions of the partial shells, the at least one screen covers the at least one outlet opening, and in the second relative position of the partial shells, the at least one screen exposes the at least one outlet opening. Such a design can do without a separate switching element on which the screen or screens are provided, since shifting the partial shells causes a change between the closed position and the open position.

The mobility between the first and second sub-shells can be a translational movement. In this case, for example, one of the two partial shells can be moved relative to the other partial shell, for example downwards, as a result of which the screen closes the outlet opening. With such translational movement, it is particularly preferred that this movement coincides with the movement of the pump actuation. With such a design, the diaphragm can be closed and the pumping device can be actuated with just one actuation.

In a particularly preferred embodiment of the mobility between the first and second partial shells, the partial shells can be rotated relative to one another. With such a design, the partial shells in particular rotatable relative to one another about an axis of rotation. In the case of a substantially spherical outer housing, the partial shells are preferably designed in the manner of hemispheres. However, other and asymmetrical divisions are also conceivable, in which the partial shells occupy spherical segments of the outer housing of different sizes. Even in a design in which the outer housing is not essentially spherical, it is preferred that the individual housing parts have a mobility relative to one another that corresponds to the mobility of the partial shells described. In this context, it is preferred that the housing parts are movable relative to one another about an axis of rotation, regardless of their external design, in particular by means of a circular guide between the housing parts. This axis of rotation preferably coincides with a central axis of the coupling device described or of the receiving shaft.

It is preferred that the two partial shells have a limitation of the rotational movement in such a design. This makes it easier to establish the open state and closed state. Such a limitation is of particular advantage in connection with a coupling device which is designed as a thread or a coupling bayonet. These advantages are explained below in connection with the coupling device.

As already explained, the coupling device can, in the simplest case, be a sealing surface that enables adequate sealing simply because of the weight with which the dosing store rests on the reservoir and possibly the actuating force exerted for the pumping process. However, it is preferably a coupling device by means of which the dosing store can be fastened to the supply store in a non-positive or positive manner.

In a particularly preferred embodiment, the coupling device is provided in the free area on said wall of the receiving shaft. The coupling device is particularly preferably the above-mentioned internal thread, by means of which the dosing reservoir can be screwed onto a corresponding external thread of the reservoir in the manner of a cap. The coupling device can be designed in such a way that it enables a rotational movement-limiting coupling to the storage device in one direction of rotation. The anti-rotation lock that can be produced in this way is particularly advantageous in the case of a dosing store with rotary switchable screens, as will be explained below.

This coupling, which limits the rotational movement, means that when the dosing store is coupled to the reservoir due to the design of the coupling devices on the dosing store and a state can be produced on the reservoir in which the dosing reservoir cannot be rotated any further relative to the reservoir, at least in one direction of rotation. Such a limitation can be achieved, for example, via the named thread with a defined end point or else the named coupling bayonet.

Such a coupling device is advantageous in particular in the case of a design of the dosing store with the above-described screens on housing parts which can be moved in rotation. In the case of the coupling device, in which the dosing store is coupled to the reservoir by means of the rotary movement, the dosing store can be coupled in just one step and the relative position of the screens can be changed. Particularly in connection with the rotational movement-limiting coupling with the reservoir, this housing part can be rotated relative to the reservoir and also relative to another housing part by applying torque to a housing part of the metering reservoir. Due to this rotational movement-limiting coupling, the screen can be transferred to the closed position when coupling. With a single movement, the user can therefore place the dosing store on the reservoir, unscrew it if necessary, and also move the panel or panels into the closed position.

In a preferred embodiment, the coupling device is designed in such a way that when the dosing store is uncoupled, the aperture is correspondingly opened again by the rotary movement. It is preferred that the coupling device is configured such that the application of force or torque required for decoupling the dosing store is higher than the application of force or torque required for transferring the aperture to the open position. Accordingly, a decoupling movement by the user firstly leads to a displacement of the panel into the open position and then to a release of the coupling.

In particularly simple embodiments, however, the coupling device can also be the web or a groove mentioned above. In this case, the web or the groove preferably extend along the main extension direction of the receiving shaft and corresponds to a groove or a web on the outlet connector of the reservoir in order to prevent twisting between the dosing reservoir and the reservoir.

In further embodiments, a coupling device can comprise further elements, such as a snap connection, which prevents the dosing store from falling off or slipping off the storage store. A coupling device with a coupling bayonet already mentioned is also possible, ie a coupling device consisting of an axial and a circumferential groove and a holding body which interacts therewith and is movable within the groove. In such a design, the coupling device comprises the mentioned grooves or the holding body on the metering storage side.

The pump device described above preferably has an externally accessible wall section on the outer housing of the dosing reservoir as an actuating handle, which can be moved relative to the filling opening and which can be pressed in manually in such a way that pressing in the wall section reduces the interior space of the dosing reservoir or one that can be isolated from the rest of the interior space Pump chamber can be effected.

A pump actuation can be carried out in a particularly simple manner as a result of such a design of the actuation handle. In an embodiment in which the wall section is arranged at the top of the dosing reservoir, the pumping device can take place by simply pressing down the movable wall section.

As described above, when the pump is actuated, the pump device can have a pump chamber which is formed by the entire interior of the dosing reservoir and which becomes smaller during the pump actuation. This means that an overpressure that occurs when the pump chamber volume is reduced and a negative pressure that subsequently occurs when the pump chamber volume is increased have the same effect in the entire interior. Such a design can be used to aspirate a comparatively large amount of liquid with just one operation. The minimum pumping chamber volume is preferably less than 90% of the maximum pumping chamber volume, so that the pumping volume is preferably at least 10% of the interior volume.

Alternatively, the pumping device can have a pumping chamber which does not take up the entire interior space but is formed by a partial area of the interior space of the dosing reservoir, with this pumping chamber being able to be isolated at least in phases from the remaining area of the interior space during the pumping process.

In such an embodiment, the pumping device can be isolated both upstream of the pumping chamber in the direction of the filling opening and also downstream in the direction of the receiving space by means of a valve in each case. However, such a solution with two valves is relatively expensive. It is therefore preferred that the pumping chamber is delimited by a compressible peripheral wall which is open on one side, most preferably downwards. Such a pump chamber can be formed, for example, by a bellows. Such an isolated pumping chamber is preferably connected to the elastically deformable wall section. According to the above embodiment, such an isolated pumping chamber is reduced during the pumping operation.

To isolate the pumping chamber from the rest of the interior of the metering reservoir during actuation, the compressible peripheral wall includes a sealing edge. This sealing edge is preferably arranged on an open side, preferably the underside of the bellows, which is opposite the deformable wall section. The sealing edge is arranged or designed in such a way that when it is actuated, it rests against a sealing surface surrounding the filling opening, on the end wall of the receiving shaft. The sealing edge and the sealing surface come into sealing contact with one another when the movable wall section is pressed in and the subsequent reset, i.e. when the pump is actuated, so that the detergent can then be sucked in under the effect of the negative pressure in the pump chamber. The sealing edge and the sealing surface thus form a kind of simple valve.

The negative pressure is created when the compressible wall returns to its original uncompressed state but is still in contact with the sealing surface. Thus, the detergent is sucked from the reservoir into the pump chamber. Such a configuration avoids the use of complex valves. This embodiment can be implemented with the orifice described above. In this embodiment, the negative pressure can also be generated when the screen is in the open position and the detergent can be sucked in.

The pump chamber wall is particularly preferably connected in one piece to the movable wall section.

In further embodiments, the wall section can be formed by a rigid actuating hood, which can be pressed in against the force of a spring device, for example. However, it is preferred that the wall section consists of an elastically deformable wall section is formed. As a result, the pumping device can be manufactured particularly cost-effectively.

The elastically deformable wall section is preferably a material with a modulus of elasticity in the range from 0.3 GPa to 4 GPa, preferably 0.6 GPa to 2 GPa, and particularly preferably in the range from 0.7 GPa to 1 GPa.

The elastic wall section is preferably designed in such a way that, after actuation, it deforms back into the starting position due to its inherent restoring force. It can be preferred that the dosing store comprises further spring devices, for example a separate helical spring, which deforms or moves the wall section back into the starting position. A separate spring device is particularly preferred in one embodiment of a rigid wall section.

A preferred way of realizing an elastically deformable wall section is for the elastically deformable wall section to form one of the partial shells, which is formed as a whole from an elastic material, with at least one outlet opening preferably being provided in this partial shell.

In further embodiments, the elastically deformable wall section can be provided on a rigid carrier section on one of the partial shells. In such an embodiment, it is preferred that this carrier section is coupled to the other partial shell. In such an embodiment, the support section has a dual function, since it includes the wall section and the coupling to the other partial shell. In the embodiment with the rigid support section, it is preferred that the support section includes the at least one outlet opening and the other partial shell includes the panel.

The elastically deformable wall section is preferably firmly connected to the rigid support section, since these components do not have to be separated from one another for actuation of the pumping device. It may be preferred that the rigid support portion includes a support structure. This support structure can either lie inside the carrier section or be connected to it. The elastically deformable wall section and the rigid support section can be produced in a 2K injection molding process and thus include materials with different properties in a one-piece partial shell

Also included in the invention is a set of a first type consisting of a dosing store and a reserve store. The dosing store is designed as described above.

The reservoir has an outlet port for removing detergent. The coupling device of the dosing store is adapted to the outlet socket in such a way that the dosing store can be attached tightly to the outlet socket with its coupling device.

It can be preferred that the dosing reservoir can be attached to the outlet connection of the storage reservoir in such a way that it takes over the function of a cover when not in use. In particular, it can be preferred in this connection that the dosing reservoir comprises the at least one screen described above and its interior can thus be isolated from the environment.

An embodiment is possible where the dosing reservoir is a separate product which can be used as an accessory for liquid detergent reservoirs. However, it is preferred that the dosing reservoir is combined with the reservoir of a classic detergent bottle and is thus delivered to an end customer together with a reservoir.

The outlet connector and the coupling device are preferably designed to enter into a non-rotatable connection, with the outlet connector and the coupling device in particular being each equipped with a thread or together forming a coupling bayonet.

The invention also includes a set of a second type consisting of a dosing reservoir and a removal insert for an outlet connection of a storage reservoir. The dosing store is designed in the manner described above. The removal insert is used for the tight connection between the dosing storage and a storage tank. It preferably has a coupling surface by means of which it can be coupled to the outlet connection piece of a reservoir.

The removal insert is an assembly that is permanently connected to the storage tank during operation. However, the set mentioned does not include the reservoir or at least not with a removal insert that is already connected.

The removal insert is detachably attached to the dosing store, so that it is transferred to the outlet connector when the dosing store is first coupled to a supply store. The removal insert is then coupled to the reservoir in such a way that the attachment to the Dosing memory is easier to solve than the connection to the reservoir. In particular, it is preferred that the coupling surface is arranged laterally on the withdrawal insert, so that when it is pressed into the outlet socket of the reservoir, it is supported against an inner wall of the outlet socket, as a result of which the withdrawal insert is firmly connected to the reservoir. This coupling can take place in a non-positive or frictional manner. With each subsequent decoupling of the dosing reservoir, the removal insert remains on the outlet port of the storage reservoir.

The extraction insert is particularly preferably designed in such a way that its shape corresponds to the end wall of the receiving shaft of the dosing store, so that a tight connection between the dosing store and the reservoir is made possible. For this purpose, the removal insert comprises an outlet opening which corresponds to the filling opening of the dosing reservoir when it is in the coupled state.

Usually, the manufacturer of a dosing reservoir according to the invention is not identical to the manufacturer of a storage reservoir. It can therefore be preferred that the dosing reservoir is present together with a removal insert for an outlet connection piece of the storage reservoir. This pre-assembled unit made up of dosing storage and removal insert can then be coupled to the storage reservoir by the manufacturer of the reservoir during assembly, with a type of transfer of the removal insert from the dosing reservoir to the reservoir taking place.

In particular when using the dosing reservoir with a storage reservoir without a riser pipe, it can be preferred that the extraction insert includes a corresponding riser pipe. This riser pipe is preferably connected to the extraction insert in such a way that the suction path extends to the bottom of the reservoir.

Said dosing reservoir and dispensing insert set embodies a general consideration which is also part of the invention. According to this more general consideration, a dosing set for dispensing a liquid, in particular for dispensing said liquid detergent into a washing drum during a washing process, is proposed. The dosing set includes a main reservoir with a larger liquid reservoir and a dosing device with a smaller liquid reservoir. The dosing device is provided for repeated coupling to the main reservoir for the purpose of filling the smaller liquid reservoir from the larger liquid reservoir and for subsequent repeated uncoupling. The dosing set includes a line insert for conducting liquid from the main reservoir to the dosing device is adapted to an outlet opening of the main reservoir in such a way that it can be coupled thereto permanently in a positive or non-positive manner. The dosing set is in an intermediate assembly state. In this intermediate state, the line insert is temporarily attached to the dosing device in such a way that when the dosing device is first coupled to the main reservoir, it is coupled to the main reservoir and the next time the dosing device is uncoupled from the main reservoir, it is released from the dosing device and remains on the main reservoir.

BRIEF DESCRIPTION OF THE DRAWINGS

• Fig. 1 zeigt ein erfindungsgemäßes Set bestehend aus einem Vorratsspeicher und einem zur fallweisen Kopplung daran vorgesehenen Dosierspeicher.
• Die Fig. 2 bis 4 zeigen einen Ablauf, bei dem der Dosierspeicher an den Vorratsspeicher angekoppelt, befüllt und wieder abgekoppelt wird.
• Fig. 5 und 6 zeigen ein erstes Ausführungsbeispiel eines erfindungsgemäßen Dosierspeichers in Explosionsdarstellung sowie eine Teilschale dessen in separater Darstellung.
• Fig. 7 zeigt einen Querschnitt des ersten Ausführungsbeispiels aus den Fig. 5 und 6 in einem zerlegten Zustand.
• Fig. 8 zeigt einen Querschnitt eines zweiten Ausführungsbeispiels des erfindungsgemäßen Dosierspeichers in einem zerlegten Zustand.
• Fig. 9 zeigt einen Querschnitt eines dritten Ausführungsbeispiels des erfindungsgemäßen Dosierspeichers in einem zerlegten Zustand.
• Die Fig. 10 bis 12 zeigen in Querschnittsdarstellung einen Pumpvorgang anhand des Ausführungsbeispiels aus Fig. 5 bis 7.
• Die Fig. 13 bis 16 zeigen in Querschnittsdarstellung einen Pumpvorgang anhand des Ausführungsbeispiels aus Fig. 9.
• Die Fig. 17 bis 19 zeigen ein Montageverfahren mit einem einen Dosierspeicher mit daran angebrachtem einem Entnahmeeinsatz für einen Auslassstutzen eines Vorratsspeichers und dessen Anbringen am Vorratsspeicher im Querschnitt.

Further advantages and aspects of the invention result from the claims and from the following description of preferred exemplary embodiments of the invention, which are explained below with reference to the figures.

• 1 shows a set according to the invention consisting of a reservoir and a dosing reservoir provided for occasional coupling thereto.
• the Figures 2 to 4 show a process in which the dosing reservoir is coupled to the storage reservoir, filled and uncoupled again.
• Figures 5 and 6 show a first exemplary embodiment of a dosing reservoir according to the invention in an exploded view and a partial shell thereof in a separate view.
• 7 shows a cross section of the first embodiment of the Figures 5 and 6 in a disassembled state.
• 8 shows a cross-section of a second embodiment of the metering store according to the invention in a disassembled state.
• 9 shows a cross-section of a third embodiment of the metering store according to the invention in a disassembled state.
• the Figures 10 to 12 show a cross-sectional view of a pumping process based on the embodiment Figures 5 to 7 .
• the Figures 13 to 16 show a cross-sectional view of a pumping process based on the embodiment 9 .
• the Figures 17 to 19 show an assembly method with a dosing reservoir with a removal insert attached thereto for an outlet nozzle of a reservoir and its attachment to the reservoir in cross section.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

1 shows a set of a dispenser 10 and a storage 100. The storage 100 contains detergent 105, which is intended to be transferred to the dispenser 10, so that this then charged dispenser 10 is then spent together with laundry in a washing drum, where the detergent 105 in the Is released during the washing process through outlet openings 62 through to the laundry.

The outer housing 12 of the metering reservoir 10 includes a lower partial shell 40 and an upper partial shell 60 , the upper partial shell 60 including a plurality of outlet openings 62 and an elastically deformable wall section 64 . The lower partial shell 40 forms a receiving space 16 for detergent 105. The dosing reservoir 10 comprises a measuring scale 18 on this lower partial shell 40, which is transparent at least in sections, for reading off the filling level. In 1 A filling opening 42 of the dosing reservoir 10 on its underside is not visible.

The present bottle-like reservoir 100 comprises an outlet connection 104 with a removal insert 108 already mounted thereon. The removal insert 108 includes a central outlet opening 106.

Figures 2 to 4 illustrate the procedure for filling the dosing reservoir 10.

2 shows the first step in which the dosing store 10 is coupled to the storage store 100 with a coupling device 46 . The dosing reservoir 10 and the reservoir 100 are each equipped with a thread for this purpose. The dosing reservoir 10 is screwed onto the storage reservoir 100 in the direction of the arrow 6 . The metering memory 10 is applied so far, so far the thread allows it. The outlet openings 62 are closed during this screwing-on process, as will be explained below.

After completion of the coupling and closing of the outlet openings 62 leads through an in 3 shown depression of wall section 64 in actuation direction 7 to reduce interior space 14 of metering reservoir 10, which acts as a pumping chamber, so that when wall section 64 subsequently springs back in interior space 14 of metering reservoir 10, a negative pressure is generated, which draws detergent 105 (not shown) from reservoir 100 sucked into the dosing reservoir 10.

Finally is in 4 shown that the metering memory 10 can be separated from the reservoir 100 by means of a loosening thread rotation movement in the direction of arrow 8, so that the metering memory 10 can be transferred to a washing machine, for example. Depending on the specific configuration of the dosing reservoir 10, the outlet openings 62 open, as will also be explained below.

Although the Figures 1 to 4 show a specific embodiment, all the aspects mentioned apply to all embodiments of the invention, which are described below.

figure 5 shows a first exemplary embodiment of the dosing reservoir 10 according to the invention in detail in an exploded view. This exemplary embodiment is an example of that in Figures 1 to 4 shown identical.

The upper partial shell 60 comprises the elastically deformable wall section 64 and a total of six outlet openings 62 which are distributed in a circle at a lower end of the upper partial shell 60 .

The lower partial shell 40 includes on its underside the receiving shaft 44 which protrudes into the interior 14 of the dosing store 10 . At the upper end of the receiving shaft 44 there is an inwardly tapering end wall 41 which is broken through in the middle by the filling opening 42 already mentioned. The partial shell 40 comprises a screen structure with a plurality of screens 48, each of which can close an outlet opening 62 and together can close the entirety of the outlet openings 62 in an assembled state. For a particularly tight closure of the outlet openings 62, the panels 48 each have an elevation 49 which is positioned such that they protrude into the respective outlet openings 62 in an assembled and closed state. The lower partial shell 40 has a connecting device 52 on an upper edge, by means of which it can be connected to an in 6 shown connecting device 78 of the upper partial shell 60 can be connected. The connection device 52 is at least one guide groove or at least one guide web.

The extraction insert 108 already mentioned is provided for installation in the outlet connection piece 104 . A riser pipe 110 is attached to the extraction insert 108 . The extraction insert 108 and the riser pipe 110 can be coupled together to the outlet socket 104 of the reservoir 100 . For this purpose, the extraction insert 108 has a coupling surface 109 which, in the assembled state, rests firmly and sealingly on an inner wall of the outlet connection piece 104 of the reservoir 100 .

6 shows in detail the inside of the in figure 5 Partial shell 60 shown. The partial shell 60 comprises a connecting device 78, by means of which it can be connected to the lower partial shell 40 and its connecting device 52. The connecting device 78 also has at least one guide groove or at least one guide web.

In the joined state of the partial shells 40, 60, i.e. in a state in which the connecting devices 52, 78 are connected to one another, the partial shells 40, 60 can be rotated in opposite directions about an axis of rotation 2, so that the screens 48 can also be rotated in relation to the outlet openings 62 are movable between an open position and a closed position. In this configuration, the axis of rotation 2 coincides with a central axis 4 of the coupling device 46 and together forms a main axis 5.

On the side 76 facing the interior 14, the upper partial shell 60 comprises, behind each outlet opening 62, a retaining structure 79 which is unidirectionally accessible in the circumferential direction and which, in the assembled state, presses the panels 48 of the lower partial shell 40 against the outlet openings 62 in order to seal off the interior 14 to guarantee. The holding structures 79 also limit the ability of the partial shells 40, 60 to rotate relative to one another in one of two directions of rotation.

The upper partial shell 60 also includes a plurality of limiters 77, which limit a rotational movement of the upper and lower partial shells 40 and 60 in the opposite direction of rotation, so that the screens 48 of the lower partial shell 40 are limited in their rotational movement between the holding structures 79 and the limiters 77 .

That in the 7 embodiment shown in a disassembled state corresponds to the embodiment of FIG Figures 5 and 6 . The upper partial shell 60 is formed in one piece and includes the elastic wall section 64 and the plurality of outlet openings 62. On the side of the outlet openings 62 facing the interior 14, the upper partial shell 60 has the retaining structures 79 overlapping the outlet openings 62.

The lower partial shell 40 has a number of diaphragms 48 that corresponds to the number of outlet openings 62 in the upper partial shell 60 and are arranged in such a way that they enable the outlet openings 62 to be sealed off when assembled. Also shown is the receiving shaft 44 that extends from below into the dosing reservoir 10, at the upper end of which the inwardly tapering end wall 41 is arranged, which includes the filling opening 42 in the middle. The receiving space 16 for the liquid detergent extends annularly around the receiving shaft 44 . On its wall in the direction of the free area, the receiving shaft 44 comprises the coupling device 46 in the form of the already mentioned thread.

The removal insert 108 is designed in such a way that it narrows the clear cross section of the outlet connection piece 104 to the smaller diameter of the central outlet opening 106 . At its upper end it has the central outlet opening 106 in the middle of the conical end wall 41 there, as well as the lateral and circumferential coupling surface 109. Centrally adjoining the outlet opening 106, a cylindrical section for connecting the riser pipe 110 is provided.

The reservoir 100 comprises the already mentioned outlet socket 104 with an external thread, which interacts with the coupling device 46 of the lower partial shell 40, which is designed as an internal thread. The inner diameter of the outlet socket 104 is designed for a clamping or locking connection with the extraction insert 108 and its coupling surface 109 .

In 8 shows, in the form of an exploded sectional view, a further exemplary embodiment of the metering reservoir 10 according to the invention, which differs from the previous exemplary embodiment in terms of the design of the upper partial shell 60 Figures 5 to 7 differs. While there the upper partial shell 60 is formed in one piece from an elastically deformable plastic, in the embodiment of the 7 the upper partial shell 60 consists of a rigid support section 63 and an associated one elastic wall section 64 is formed, the support section 63 preferably being made of a more rigid material than the wall section 64 . The carrier section 63 is ring-shaped and includes the plurality of outlet openings 62. In the present example, no holding structures 79 are provided in accordance with the previous exemplary embodiment. These could also be implemented in a variant of the second exemplary embodiment and are then preferably an integral part of the carrier section 63.

The lower partial shell 40 and the removal insert 108 and the reservoir 100 are made according to the exemplary embodiment 7 educated.

9 shows an exploded sectional view of a third embodiment, in which the main difference from the embodiment of 7 in the design of the pumping chamber 70 lies. While the entire interior 14 of the metering reservoir 10 forms the respective pump chamber 69 in the previous exemplary embodiments, only a partial area of the interior 14 is designed as a pump chamber 70 in this third exemplary embodiment.

This pumping chamber 70 is delimited primarily by the upper partial shell 60, namely by part of the deformable wall section 64 and a peripheral wall 72 attached thereto and preferably integrally formed and compressible in the pumping direction, which is in the form of a bellows in the present case. The compressible peripheral wall 72 has a sealing edge 74 at its lower end.

As in the previous embodiments, the lower partial shell 40 has the filling opening 42 at an upper end of the receiving shaft 44 as well as the conical end wall 41 pointing towards the interior space 14, which forms a sealing surface 50 for interacting with the mentioned sealing edge 74 of the wall 72.

Otherwise, the lower partial shell 40 and the removal insert 108 and the reservoir 100 are essentially identical to the exemplary embodiment in FIG 7 educated.

the Figures 10 to 12 and 13 to 16 illustrate the exemplary embodiments of FIG Figures 5 to 7 and FIG. 9 the mode of operation during a pumping process, which is used to suck detergent 105 into the receiving space 16 of the dosing reservoir 10 .

the Figures 10 to 12 show the dosing reservoir 10 from the first exemplary embodiment according to FIGS Figures 5 to 7 in cross-section during the pumping steps.

Here shows 10 the dosing reservoir 10 already screwed onto the storage reservoir 100. The screens 48 already close the outlet openings 62, this having been achieved beforehand in that the metering store 10 was screwed onto the supply store 100. At the latest when a further rotational movement of the lower partial shell 40 relative to the reservoir 100 is no longer possible, a continued torque loading of the upper partial shell 60 has caused the relative rotation of the partial shells 40, 60 into the closed position during this opening.

The screens 48 are engaged in the holding structures 79 and are pressed by them against the outlet openings 62 . The interior space 14 is thus essentially isolated from a surrounding atmosphere.

Starting from the coupled state of 10 the wall section 64, which serves as an actuating handle, is manually depressed from the outside. In 11 the dosing reservoir 10 is shown with the wall section 64 pressed in elastically in the actuation direction 7 . The interior space 14 and thus the pumping chamber 69 that it forms is reduced as a result. The overpressure generated by the reduction in size of the pump chamber 69 is transferred to the reservoir 100 . If there is no actuating force, the wall section 64 resumes its original shape and the volume of the pump chamber 69 increases again, with a negative pressure being established in the interior space 14 .

In 12 clarifies this. The wall section 64 is returned to its original position, as a result of which the negative pressure formed in the interior 14 draws in the liquid detergent 105 from the reservoir 100 via the riser pipe 110 . Due to the conical shape of the end wall 41, the detergent 105 emerging from the filling opening 42 then runs into the receiving space 16 of the lower partial shell 40.

Figures 13 to 16 show the embodiment of 9 in cross-section during the pumping steps.

13 shows the dosing reservoir 10 in the non-actuated initial state, in which the dosing reservoir 10 is screwed onto the reservoir 100. By means of the panels 48 of the lower partial shell 40 are the outlet openings 62 of the upper partial shell 60 are closed. The holding structures 79 press from the interior 14 against the panels 48. The lower partial shell 40 includes the receiving space 16 for the liquid detergent 105. The upper partial shell 60 has the pump chamber 70 which is open at the bottom in this state and which is formed by the compressible peripheral wall 72 is limited and only a portion of the interior space 14 occupies. In the state of 13 If this pump chamber 70 is not yet closed at its lower end, that is to say it is not isolated from the receiving space 16 .

14 shows how the wall section 64 is pushed in in the direction of actuation 7, as a result of which the compressible peripheral wall 72 with its sealing edge 74 rests on the sealing surface 50 of the receiving shaft 44 of the lower partial shell 40. As a result, the pump chamber 70 is isolated from the receiving space 16 and then minimized volumetrically in the course of being pressed in completely.

15 shows an intermediate state during a return stroke movement, in which negative pressure in the pump chamber 70 during the transfer of the wall section 64 into its starting position results in the liquid detergent 105 being sucked out of the reservoir 100 into the pump chamber 70, with the sucked detergent 105 not yet having reached the Recording room has reached 16.

16 shows the wall section 64 completely transferred to its starting position 15 into the the 16 the sealing edge 74 has detached from the sealing surface 50, which is similar to opening a valve. As a result, the negative pressure collapses and the detergent 105 runs in the direction of the arrow 9 from the pump chamber 70 into the receiving space 16 of the lower partial shell 40.

Figures 17 to 19 show the inventive set of metering storage 10 from the embodiment of FIG Figures 5, 6 and 7 , such as Figures 10 to 12 in cross section. However, this is only to be understood as an example. The other illustrated and described variants of the dosing reservoir could also be part of such a set.

figure 17 shows the extraction insert 108 preassembled on the metering storage 10 and the riser pipe 110 before the metering storage 10 is first attached to the reservoir 100.

18 shows the first screwing of the dosing reservoir 10 onto the reservoir 100. The removal insert 108 is pressed into the outlet socket 104 of the reservoir 100. The holding force generated by friction is greater than the holding force generated by the holding section on the dosing reservoir 10 , so that when the dosing reservoir 10 is subsequently unscrewed, the removal insert 108 remains on the outlet connector 104 .

19 shows the resulting ready-to-use configuration of the dosing reservoir 10 and the reservoir 100. The removal insert 108 and the riser pipe 110 remain on the outlet nozzle 104 of the reservoir 100, with the dosing reservoir 10 being able to be uncoupled to dispense liquid detergent 105 into a washing drum.

Claims (15)

1. Dosing storage means (10) for being received in a washing drum for the purpose of dispensing liquid detergent (105) during a washing operation, having the following features:

   a. the dosing storage means (10) has an external housing (12) with an interior space (14) which comprises a receiving space (16) for receiving detergent (105) to be dispensed, and

   b. the external housing (12) of the dosing storage means (10) has at least one exit opening (62) through which detergent (105) can be dispensed without pressure into the washing drum from the receiving space (16), and

   c. the dosing storage means (10) has a filling opening (42) which is accessible from a bottom side of the dosing storage means (10), and has a coupling device (46) for coupling to a supply storage means (100), and

   d. the dosing storage means (10) has a manually actuatable pump device (68) for generating a negative pressure at the filling opening (42) and thus for sucking detergent (105) into the dosing storage means (10) from the supply storage means (100), and

   e. the dosing storage means (10) has on an external side of the external housing (12) a manual actuation means which can be pressed in and by means of which the pump device (68) can be actuated such that a pump chamber (69, 70) of the pump device (68) in this way can be varied in terms of volume and consequently generates the negative pressure at the filling opening (42).
2. Dosing storage means (10) according to Claim 1, having the following further features:

   a. the filling opening (42) is provided at an internal end of a receiving shaft (44) which extends into the dosing storage means (10) from below, and

   b. the receiving shaft (44) is provided for receiving an outlet connecting piece (104) of the supply storage means (100), and

   c. the receiving space (16) extends annularly around the receiving shaft (44).
3. Dosing storage means (10) according to Claim 1 or 2, having the following further features:

   a. the dosing storage means (10) has at least one cover (48) for closing off the at least one exit opening (62), and

   b. the cover (48), with respect to the exit opening (62), can be displaced between a closed position, in which it covers the exit opening (62), and an open position, in which it opens up the exit opening (62).
4. Dosing storage means (10) according to Claim 3, having the following further features:

   a. the external housing (12) has two part-shells (40, 60) which are accessible from the outside, specifically a first part-shell (60) and a second part-shell (40), and

   b. the part-shells (40, 60) are coupled to one another and can be moved with respect to one another between a first relative position and a second relative position, and

   c. the at least one exit opening (62) is provided on the first part-shell (60) and the at least one cover (48) is provided on the second part-shell (40), and,

   d. in the first relative position of the part-shells (40, 60), the at least one cover (48) covers the at least one exit opening (62) and, in the second relative position of the part-shells (40, 60), the at least one cover (48) opens up the at least one exit opening (62).
5. Dosing storage means (10) according to Claim 4, having the following feature:

   a. the two part-shells (40, 60) can be rotated with respect to one another about an axis of rotation (2),

   preferably having the following additional feature:
   b. the axis of rotation (2) is coincident with a central axis (4) of the coupling device (46).
6. Dosing storage means (10) according to one of the preceding claims, having the following feature:

   a. the external housing (12) has a wall portion (64) which is accessible from the outside and which can be moved with respect to the filling opening (42) and which can be pressed in manually in such a way that the pressing-in of the wall portion (64) can cause a reduction in the size of the interior space (14) of the dosing storage means (10) or of a pump chamber (70), which pump chamber can be isolated from the rest of the interior space (14),

   preferably having one of the following features:

   b. the wall portion (64) is formed by an elastically deformable wall portion (64), or

   c. the wall portion (64) is formed by a rigid actuating surface which can be pressed in counter to the force of a spring device.
7. Dosing storage means (10) according to Claim 6, having the following feature:

   a. the movable wall portion (64) is provided on a side of the dosing storage means (10) that is situated opposite the filling opening (42).
8. Dosing storage means (10) according to Claim 6 or Claim 7, having one of the following features:

   a. the elastically deformable wall portion (64) forms one of the part-shells (60), which is formed as a whole from an elastic material, wherein preferably at least one exit opening (62) is provided in this part-shell (60), or

   b. the elastically deformable wall portion (64) is provided on a rigid carrier portion (63) of a part-shell (60), which carrier portion is coupled to the other part-shell (40) and in which carrier portion there is preferably provided at least one exit opening (62).
9. Dosing storage means (10) according to one of the preceding claims, having the following further feature:

   a. the pump device (68) has a pump chamber (69) which is formed by the entire interior space (14) of the dosing storage means (10).
10. Dosing storage means (10) according to one of Claims 1 to 8, having the following further feature:

    a. the pump device (68) has a pump chamber (70) which is formed by a part-region of the interior space (14) of the dosing storage means (10), wherein, during a pumping operation, said pump chamber (70) can, at least in a phasewise manner, be isolated from a remaining region of the interior space (14),

    preferably having the additional features:

    b. the pump chamber (70) is delimited by a compressible encircling wall (72) which is provided on the movable wall portion (64) and which has a sealing edge (74) on the oppositely situated end, and

    c. a sealing surface (50) surrounding the filling opening (42) is provided situated opposite the sealing edge (74) and is arranged in such a way that, when the movable wall portion (64) is pressed in, the sealing edge (74) comes to bear sealingly against the sealing surface (50).
11. Dosing storage means (10) according to one of the preceding claims, having at least one of the following features:

    a. the coupling device (46) is configured to permit coupling to the supply storage means (100), which coupling is limiting in terms of rotational movement at least in one direction of rotation, wherein the coupling device (46) is preferably in the form of a thread, and/or

    b. the external housing (12) is at least partially transparent, and/or

    c. the external housing (12) has a measurement scale (18) or a fill-level marking, and/or

    d. a plurality of exit openings (62) through which detergent (105) can be dispensed without pressure into the washing drum from the interior space (14) of the dosing storage means (10) is provided, wherein preferably at least 3, particularly preferably at least 6, exit openings (62) are provided, and/or wherein preferably each exit opening (62) is assigned a cover (48), and/or

    e. the receiving shaft (44) has at the internal end an end wall (41) which narrows upwardly and in the direction of the filling opening (42).
12. Set made up of a dosing storage means (10) and a supply storage means (100), having the following features:

    a. the dosing storage means (10) is formed according to one of Claims 1 to 11, and

    b. the supply storage means (100) has an outlet connecting piece (104) for extraction of detergent (105), and

    c. the coupling device (46) of the dosing storage means (10) is matched to the outlet connecting piece (104) in such a way that the dosing storage means (10) can be mounted tightly on the outlet connecting piece (104).
13. Set according to Claim 12, having the following further feature:

    a. the outlet connecting piece (104) and the coupling device (46) are configured for entering into a rotationally fixed connection,

    in particular having the following additional feature:
    b. the outlet connecting piece (104) and the coupling device (46) are each provided with a thread or together form a bayonet coupling.
14. Set made up of a dosing storage means (10) and an extraction insert (108) for an outlet connecting piece (104) of a supply storage means (100), having the following features:

    a. the dosing storage means (10) is formed according to one of Claims 1 to 11, and

    b. the extraction insert (108) is fastened in a detachable manner to the dosing storage means (10) such that a coupling surface (109) of the extraction insert (108), which coupling surface serves for fastening to the supply storage means (100), can, when the dosing storage means (10) is mounted on the supply storage means (100) for the first time, couple to the outlet connecting piece (104) of the latter.
15. Method for filling a dosing storage means (10) with liquid detergent, having the following features:

    a. the dosing storage means (10) is coupled to a supply storage means (100), and

    b. a negative pressure is generated in the dosing storage means (10), and

    c. detergent (105) is sucked into the dosing storage means (10) from the supply storage means (100) by means of the negative pressure.

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