EP2072663A1 - Water refilling container for a liquid tank and a method to empty a liquid tank - Google Patents

Abstract

The container (8) has a container neck (11) adapted in its outside diameter to an inside diameter of a filler neck (7) of a pressure vessel (4). A suction device is combined for exhausting remaining liquid (R) from the pressure vessel. A partial chamber (18) for fresh liquid (F) and a partial chamber (16) for the remaining liquid are formed in the container. The fresh liquid partial chamber is closed by a valve (19), which is opened during the insertion of the container neck into a tank opening by a pressure tappet (26). The pressure tappet is firmly connected with the valve. An independent claim is also included for a method for emptying a fluid tank of a household steam-ironing device.

Description

The invention relates first of all to a water refill container for a liquid tank, in particular for a pressure vessel of a household steam ironing apparatus, with a container neck which is adapted in its outer diameter to an inner diameter of a filler neck of the pressure vessel.

A water refill container of the type in question, in particular for filling a pressure vessel of a household steam ironing device is known from DE 10301209 A1 known. About this container designed as a pressure vessel liquid tank is refillable or refillable.

In view of the known prior art, a technical problem of the invention is seen in a water refill container of the type in question in particular handling technology to further improve.

This problem is initially and essentially solved by the subject matter of claim 1, wherein it is based on the fact that the container is combined with a suction device for sucking residual liquid from the tank, further in the container, a sub-chamber for the fresh liquid and one of them liquid are formed separate sub-chamber for the residual liquid. According to this embodiment, a refill container is provided, which at the same time can serve the extraction of residual liquid in particular from the tank. Accordingly, there is a combined container, which facilitates the overall handling of the user. So this can suck out by means of this refill container still located in the tank residual liquid initially, this further with Mitaufsaugen any residues such as dirt particles in the tank. The absorbed residual liquid is stored in a separate chamber of the refill container. Mixing with the fresh liquid is thereby avoided. In addition, the user is a Provided means to hand over the refill container first fresh liquid into the tank to rinse this first, which introduced fresh rinsing liquid, if necessary, mixed with a residual liquid on the combined refill container is sucked off again. It requires correspondingly no cumbersome handling of two separate containers or the handling of a container with two different essays to perform the necessary at regular intervals rinsing of the tank. However, such flushing of the tank is quite necessary depending on the application because of possible corrosion and clogging of the tank system.

The emptying and flushing in particular of a pressure vessel of a household steam ironing device is complex for the user according to the known solutions. Therefore, this necessary rinsing process is often neglected. Due to the residual liquid remaining in the pressure vessel, corrosion occurs in the interior of the pressure vessel over time until it eventually becomes damaged. Therefore, it is imperative that the pressure vessel rinsed regularly, that is, the residual water is emptied so that the pressure vessel does not corrode. The inventive combination of the container for refilling and emptying the residual by emptying the pressure vessel, this flushing process can be performed regularly and possibly inevitably. The suction of residual liquid can be used automatically before the actual filling process, which is supported by the separately provided chambers for storing the fresh liquid and the residual liquid and by the combination of suction and refilling. Advantageously, the water refill container is independent of the location ready for use, since this receives the fresh liquid and the absorbed residual liquid itself. Accordingly, it does not require connection to a water pipe or to an additional residual liquid tank.

The subjects of the further claims are explained below in relation to the subject matter of claim 1, but may also be significant in their independent formulation.

Thus, in a further development of the subject invention, it is provided that the fresh liquid sub-chamber is closed by a valve which is to be opened by an opening part when the container neck is introduced into the tank opening. Accordingly, the fresh liquid sub-chamber is activated in the course of placing the refill container on the tank, according to which immediately after a proper application of the container, the fresh liquid inlet into the tank begins. The opening part for releasing the fresh liquid may be connected to a cooperating with the filler neck of the tank collar or the like of the container, said collar opens on the filler neck supporting the further movement of the container in the tank opening the valve. In a development of the subject invention, the opening part is a push rod. Also, such a plunger can cooperate, for example, with the filler neck of the tank, further alternatively with further associated areas of the tank. Thus, in a preferred embodiment, the pressure ram is provided in the region of the container neck and interacts with the portion of the tank bottom opposite the filler neck.

The plunger can act on the valve via deflection. Preferred in this regard is an embodiment in which the pressure ram is firmly connected to the valve, so on, for example glued or welded to this. Accordingly, a preferred translation of plunger displacement to valve displacement in the ratio of 1: 1.

For sucking residual liquid from the tank or pressure vessel, a suction line is provided which opens into the residual liquid sub-chamber. This suction line preferably extends in the insertion position into the area the tank bottom so as to be able to absorb in the course of the flushing process in the tank bottom area settling dirt particles.

Particularly advantageous is an embodiment in which the residual liquid sub-chamber and the fresh liquid sub-chamber communicate with the same, resulting in filling position of the container, closed airspace. As a result of this refinement, a rinsing process which automatically adjusts itself before the filling process can be realized, this being due to prevailing pressure conditions between the closed air space and the environment. The container comes in particular for the flushing but also beyond for the filling without any additional power. The container preferably dispenses with the energy balance completely from the energy potentials of the pressures of the various water columns of fresh liquid and residual liquid sub-chambers present in the system. Accordingly, it is achieved by this coupling of the sub-chambers in the filling that each filling inevitably precedes a rinsing and emptying of the tank. The rinsing process is triggered independently. This sequence inevitably repeats each time the tank is filled. In the case of a completely empty tank in which no residual water is present, a rinsing process takes place, in which a fresh water subset filled in the tank is immediately absorbed again via the suction line into the residual liquid sub-chamber, wherein the dry deposits located in the tank be carried away. It is thus achieved a pure flushing, in which clean fresh liquid is contaminated with residual sediment and then immediately sucked up again to fill the cleaned tank with fresh liquid afterwards.

The suction line is firmly connected to the valve. Thus, the suction line at the same time forms the plunger for valve actuation. In a preferred embodiment, the suction line is received in the container neck, which also has a fresh-fluid dispensing opening. The residual liquid suction opening and the fresh liquid dispensing opening are in a preferred embodiment on the container axially, that is arranged offset vertically to each other in the filling position, wherein more preferably in the filling position, the dispensing opening is viewed in the axial direction is positioned above the suction opening, from which it follows that the suction opening in the suction direction is arranged in front of the dispensing opening. In this case, the suction opening directed, for example, down in the direction of the tank bottom centrally, further provided for example coincident with the Behältnishalsachse, while further example, the dispensing opening of the dispensing line is formed by a radial opening of Behältnishalses.

The residual liquid suction line and the fresh liquid dispensing line are preferably formed in the container neck as concentric lines, but may alternatively be provided in juxtaposed arrangement in the container neck. In the case of a concentric arrangement, it is provided that the dispensing line comprises the suction line like a sleeve. Alternatively, the dispensing line can also be arranged radially on the inside and the suction line can be arranged at least partially encompassing the dispensing line radially on the outside.

In dispensing position, the fresh liquid sub-chamber is formed above the residual liquid sub-chamber. The residual liquid suction line preferably passes through the fresh liquid sub-chamber, thus, for example, to form a U-shaped line section, which, after passing through the fresh liquid sub-chamber in the filling position, opens from above into the residual liquid sub-chamber.

The automatic triggering of the flushing process as well as the automatic stop thereof and the filling of the tank with fresh water, which is carried out hereafter, are further achieved by connecting a venting line to the volume of air while passing through the fresh liquid partial chamber in the dispensing position. This vent line is otherwise with the residual liquid sub-chamber connected and acts in the filling position of the container as a riser for the recorded in the residual liquid sub-chamber, sucked up residual liquid which is in the riser rising water column in dependence on the decreasing in the fresh liquid sub-chamber by expiry of the fresh liquid fresh water column in proportion. Depending on the resulting pressures of the flushing process is started or stopped.

As a further advantage results in a development in which at least on the volume of fresh liquid in the sense of a squeeze container can be acted so as to increase manually, if necessary, the pressure on the fresh liquid sub-chamber.

For emptying and cleaning of the container, in particular of the sub-chambers they are separable from each other, including, for example, the two sub-chambers are screw-connected with each other. Other sealing occlusive connections are possible in this regard, for example, using a screw-on or aufklippsbaren annular flange which is connected to the container neck, which comprises annular flange radial collars of the sub-chambers. Further alternatively or in combination with this, the residual liquid sub-chamber may have a separate emptying closure, which is provided, for example, with a screw cap or a stopper.

The invention further relates to a method for emptying a liquid tank, in particular a water tank of a domestic steam ironing apparatus, wherein the tank has a filling opening and residual liquid is sucked out of the tank.

Methods of the type in question are known. In this regard, for example, on the DE 10141629 A1 referenced, in which the water tank without removal from the ironing board by promoting the water through the Filling is emptied, so on, for example, by expressions or suction for promotion in a separate container.

In view of the above-described prior art, a technical problem of the invention is seen in further improving a method of the type in question.

This problem is initially and essentially solved in that fresh liquid is introduced from a container into the tank at the same time as the removal of residual liquid. According to this inventive method, a coupling of rinsing or suction and refilling of the tank is achieved. The residual water contaminated with residual sediment is sucked in automatically when filling the tank, without the user having to start a special process or even using a specially provided container or a container attachment. A filling of the tank with fresh liquid is not possible without a rinse and is started together with the filling. If no or only a small amount of residual liquid is present in the tank, the introduced fresh liquid is immediately sucked off again at the beginning of the filling of the tank, this with entrainment of possibly on the tank bottom residual sediment. It is thus achieved a pure flushing process in which fresh liquid contaminated with particles and then absorbed immediately. After completion of the rinsing process, the refilling with fresh liquid is preferably initiated automatically without further suction.

The subjects of the further claims are explained below with reference to the subject-matter of claim 19, but may also be significant in their independent formulation.

Thus, it is provided in a preferred embodiment of the subject invention that the residual liquid is sucked into the same container, from which the fresh liquid is applied. Accordingly, it does not require the arrangement and handling of two separate containers for the suction and the introduction of fresh liquid, which further improves handling. Thus, it is provided in a development that the residual liquid is sucked in a different sub-chamber of the container than the sub-chamber in which the fresh liquid is. The sub-chambers within the container, for example, be arranged coaxially to each other, but alternatively, for example, in axial superimposition.

The suction of the residual liquid is preferably carried out using the weight of the fresh liquid, so on, using the prevailing pressures in the various water columns of the sub-chambers and their line sections. Accordingly, the process does not require any additional auxiliary energy. The energy budget is completely disputed from the energy potentials in the piping / chamber system.

Initially, the rinsing and filling process is initiated by opening a valve seal which initially closes the sub-chamber containing the fresh liquid and which is displaced into the open position in the course of insertion of the container into the filling opening of the tank. This valve seal acts both on the suction opening for the residual liquid and on the dispensing opening for the fresh liquid, according to which both processes are triggered only by a valve actuation.

In a further preferred embodiment, it is provided that after a self-adjusting termination of the suction of residual liquid further fresh liquid is discharged by active pressurization of the fresh liquid in the container in the tank. The active pressurization can be applied here in the sense of a squeeze container. Further alternatively, the further fresh liquid after completion of the suction alone by the prevailing in the fresh liquid sub-chamber Pressure to be applied. In each case, the user is given a method by means of which he absolutely has to carry out a rinsing process before a filling process.

Finally, it is provided that the container neck is introduced into the sump of the tank, which leads to an increased removal of accumulating on the bottom of the tank residues in the course of the suction process.

Fig. 1

eine Haushalts-Dampfbügelvorrichtung in perspektivischer Dar- stellung;

Fig. 2

die Dampfbügelvorrichtung bei in Befüllstellung einem Tank zuge- ordnetem Nachfüllbehältnis;

Fig. 3

das Nachfüllbehältnis in einer ersten Ausführungsform, die Längs- schnittdarstellung desselben in der nicht benutzten Vorratsstellung betreffend;

Fig. 4

eine Längsschnittdarstellung gemäß Fig. 3 durch das Behältnis, je- doch in der Befüllstellung, zugeordnet dem Tank;

Fig. 5

eine Längsschnittdarstellung gemäß Fig. 3, jedoch nach Benutzung des Behältnisses;

Fig. 6

in perspektivischer Darstellung das Behältnis in einer zweiten Aus- führungsform;

Fig. 7

den Längsschnitt durch das Behältnis der zweiten Ausführungs- form die nicht benutzte Bevorratungsstellung betreffend;

Fig. 8

das Behältnis in Längsschnittdarstellung in der Befüllstellung;

Fig. 9

die Herausvergrößerung des Bereiches IX in Fig. 8;

Fig. 10

die Herausvergrößerung des Bereiches X in Fig. 8;

Fig. 11

eine der Fig. 10 entsprechende Schnittdarstellung, jedoch eine alter- native Ausführungsform betreffend und

Fig. 12

das Behältnis in Längsschnittdarstellung, nach dem Befüllvorgang.

Below, the invention with reference to the accompanying drawings, which illustrates only exemplary embodiments, explained in more detail. It shows:

Fig. 1

a household steam iron device in perspective view;

Fig. 2

the steam ironing device with a refill container assigned to a tank in the filling position;

Fig. 3

the refill container in a first embodiment, the longitudinal sectional view of the same concerning the unused storage position;

Fig. 4

a longitudinal sectional view according to Fig. 3 through the container, but in the filling position, assigned to the tank;

Fig. 5

a longitudinal sectional view according to Fig. 3 but after use of the container;

Fig. 6

in a perspective view of the container in a second embodiment;

Fig. 7

the longitudinal section through the container of the second embodiment concerning the unused storage position;

Fig. 8

the container in longitudinal section in the filling position;

Fig. 9

the enlargement of the area IX in Fig. 8 ;

Fig. 10

the zoom out of the area X in Fig. 8 ;

Fig. 11

one of the Fig. 10 corresponding sectional view, but an alternative embodiment concerning and

Fig. 12

the container in longitudinal section, after the filling process.

Shown and described is first with reference to FIG. 1 a household steam ironing device 1 with an ironing board 2 and a frame 3 carrying the ironing board. 3

The steam ironing device 1 has a steam generating device, not shown, with a liquid tank forming a pressure vessel 4, which is connected via a steam line 5 with an iron 6 in combination.

The pressure vessel 4 has an in FIG. 4 schematically illustrated, capped in steam operation filler neck 7 with tubular cross-section.

For refilling and rinsing or residual emptying of the pressure vessel 4 of the steam generating device, a bottle-shaped water refill container 8 is provided. The latter is composed of a preferably made of plastic bottle 9 and a screw-on container closure 10, which is also preferably made of a plastic material.

The container 8 has centrally from the container closure 10 a tubular container neck 11. This sits at a total rotationally symmetrical design of the container 8 concentrically aligned with the container axis x.

In the container neck 11, two lines are integrated, such as a fresh liquid dispensing line 12 and a residual liquid suction line 13. These two lines 12 and 13 are arranged concentrically in the container 11, wherein the dispensing line 12 surrounding the suction line 13 forms an annular channel in cross section.

Toward the free end of the container neck 11, the lines 12 and 13 each have openings, such as a residual liquid suction opening 14 assigned to the central suction line 13 and a fresh liquid dispensing opening 15 associated with the dispensing line 12. The latter is positioned axially offset relative to the dispensing opening 15 about the outside diameter of the dispensing line 12 set back to the dispensing opening 15, so that the centrally guided suction line 13 over the corresponding dimension in the axial direction over the dispensing line 12 protrudes freely.

The suction opening 14 is in the in the FIGS. 3 to 5 illustrated tip-side, that is positioned transversely to the axis alignment, as well as the dispensing opening 15, which describes a circular area in a plan because of the central enforcement by the suction line 13.

Both lines 12 and 13 pass through a formed in the illustrated embodiment in the container closure 10 residual liquid sub-chamber 16, which partial chamber 16 is insulated by a separating cover 17 from the fresh liquid compartment 18 formed by the bottle 9.

There is a volume ratio of fresh liquid sub-chamber 18 to residual liquid sub-chamber 16 of 5: 10 to 20: 1, further example, 7: 1 or 15: 1, preferably about 10: 1 provided with a further provided, for example fresh liquid supply of about 0, 5 1.

The in the container neck 11 radially outer fresh liquid dispensing line 12 opens, the partition 17 passing through in the fresh liquid sub-chamber 18, said mouth opening is valve-closed in the non-use position of the container 8. For this purpose, a valve plug 19 is provided, which facing the mouth opening of the dispensing line 12 tapers conically, for cooperation with a correspondingly inclined flank of the dispensing line wall.

The valve plug 19 is sealingly attached to the suction line 13 at this centrally permitting suction line 13 and not displaceable.

The valve plug 19 centrally passing through the suction line 13 is recirculated to form a 180 ° arc portion 20 with further enforcement of the partition 17 in the residual liquid compartment 16 and opens there free.

Furthermore, serving as a riser vent line 21 is provided for connecting the two sub-chambers 16 and 18, which vent pipe 21 is aligned parallel to the container axis x, so on in eccentric assignment to the axis, a side region of the residual liquid sub-chamber 16 assigned.

The tube openings left in the free ends of the vent tube 21 are each spaced apart from the associated end face of the respective subchamber 16, 18 positioned. The end of the vent tube 21 remote from this end is spaced from the bottle bottom 23, which at the same time the bottom of the fresh liquid sub-chamber 18th forms.

With reference to the first embodiment, as shown in FIG FIG. 3 in the ready position of the container 8, the bottle 9 and the fresh liquid sub-chamber 18 filled with fresh water F, wherein the volume of the fresh water F stocking partial chamber 18 is used only about two-thirds, with the result that in the filling position according to the Presentation in FIG. 4 the fresh liquid sub-chamber 18 facing free end of the vent tube 21 via the fresh water level in the left closed air space 24 opens.

The function of the refill container 8 is as follows:

To fill the pressure vessel 4, the container 8 is placed in the overhead position on the pressure vessel 4, passing through the filler neck 7 by means of the container neck 11. Accordingly, at the same time dispensing line 12 and suction 13 are guided into the pressure vessel 4, so far that the suction line 13 into the Swamp of the pressure vessel 4 is sufficient.

In the filling position, the suction line 13 is supported on the tank bottom 25 on the tip side. The acting as a plunger 26 suction line 13 is displaced according to the support on the tank bottom 25 with simultaneous further displacement of the container 8 in the direction of the pressure vessel 4 relative to the dispensing line 12, which on the plunger 26 and via the suction line 13, a lifting of the the suction line 13 attached valve plug 19 has the consequence. The previously valve-closed opening of the dispensing line 12 to the fresh liquid sub-chamber 18 is opened. Accordingly flows over the Dispensing line 12 and the end-side dispensing opening 15 fresh liquid F in the pressure vessel 4 from.

Due to the outflowing liquid volume, a negative pressure is created in the bottle 9 or in the fresh liquid sub-chamber 18. This is transmitted via the riser pipe or vent pipe 21 into the residual liquid sub-chamber 16 and via this into the residual liquid suction line 13. Accordingly, suction is triggered via suction via the suction opening 14 of the residual liquid suction line 13, for sucking any residual liquid or for sucking contaminated with dirt, in the course of the same process only introduced fresh liquid into the residual liquid part chamber sixteenth

Due to the pressure compensation exactly the amount of residual liquid R is sucked out of the pressure vessel, as fresh liquid F flows into the pressure vessel 4. In the course of filling the residual liquid sub-chamber 16 increases in the vent tube 21 like a riser, the liquid level to a level in which this residual liquid level in the vent tube 21 at the same height as the fresh liquid level in the fresh liquid sub-chamber 18. In this moment is the Pressure equalization completed, after which the suction automatically stops. From this point on, the pressure vessel 4 is filled with fresh liquid F only by the pressure present in the fresh liquid sub-chamber 18. It is hereafter started a usual filling.

In the case of a completely empty pressure vessel 4, in which accordingly no residual liquid is present, a pure rinsing takes place, via the dispensing line 12 in the pressure vessel 4 filled fresh liquid F again immediately over the suction line 13 in the residual liquid part chamber 16 is absorbed, this with entrainment of optionally located in the pressure vessel 4 dry deposits.

After filling the pressure vessel 4, the tank filled with residual liquid R (sub-chamber 16) is unscrewed from the bottle 9 (sub-chamber 18) and can thereafter be emptied and separated from the residual liquid sub-chamber 16 fresh liquid sub-chamber 18 again filled.

Show the FIGS. 3 to 5 a container 8 in a schematic representation, it is in the FIGS. 6 to 12 a constructive solution of the container 8 shown in a further embodiment.

The container closure 10 is formed in this embodiment as a screw cap on which both dispensing line 12 and suction line 13 and the arc section 20 and the valve formation and the vent tube 21 are arranged. Accordingly, after unscrewing the container closure 10, a bottle 9 is present in its original design with a bottle neck 27 and an external thread formed on the bottle neck 27. The filling opening of the bottle 9 is limited by no parts disturbing the filling; is rather free in its full cross-section.

The suction opening 14 is also formed in the tip-side of the suction line 13 in this embodiment. For this purpose, the suction line 13 is initially rounded tip-like spherical, which tip is specifically formed by in the plan crosswise arranged webs 28, viewed in the circumferential direction between them leave the dispensing opening 15. As a result, the dispensing opening 15 is not strictly directed transverse to the Achserstreckung; rather goes into the subsequent sidewall sections.

The axial displacement of the suction line 13 for pressure plunger-like displacement of the valve plug 19 in the open position is done by supporting the Suction line 13 via the webs 28 on the tank bottom 25, this further against a suction line 13 and the plunger 26 in the normal position, that is acting in the valve closure position compression spring 29th

The cylindrical wall forming the dispensing line 12 is pulled in this embodiment to near the suction opening 14, enclosing the head-side Saugleitungsabschnittes. This end-side suction line section merges into a cross-section-tapered line section, which extends through the entire container neck 11 as far as the valve stopper 19. This reduced in outer diameter portion is the end of the suction line 13 surrounded by the compression spring 29, which is supported at the enlarged diameter end portion of the suction pipe 13 at one end. At the other end, an abutment for the compression spring 29 is provided by a transverse to the axis extension oriented partition wall 30 in the dispensing line cylinder.

On the upper side of the partition wall 30, that is facing away from the suction port 14 having suction line is concentric with the suction line 13 surrounding this the dispensing line 12, wherein further directly above the partition wall 30, the dispensing opening 15 is provided by a radially opening window. Accordingly, in this embodiment, an axial spacing of the suction opening 14 and dispensing opening 15 is predetermined, wherein in the filling position, the dispensing opening 15 is always positioned above the suction opening 14 as viewed in the axial direction.

The FIGS. 10 and 11 show embodiments of drain plugs 40 for opening the residual liquid compartment 16 to empty or clean. Thus, as shown in FIG. 10 the partial chamber ceiling 22 may be provided with an opening 31 which is surrounded by a neck extending parallel to the container axis x, which has a peripheral bead 33 in the region of its free end. About this bead 33 in the operating position, a cap 34 bouncing tight sealing.

For a total of a plastic material container, in particular, the cap 34 may consist of a soft plastic material.

Further alternatively, in the sub-chamber ceiling 22 a plurality of provided on a circumferential line to the axis x emptying openings 31 may be present, which are enclosed radially inwardly and radially outwardly of the axis x concentrically arranged annular walls 35 having external threads. The emptying openings 31 are threadedly closed together by a screw cap 36 which cooperate with the external threads of the annular walls 35. By a central cap opening 37 of the container 11 is guided.

All disclosed features are essential to the invention. The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims (15)

Water refill container (8) for a liquid tank, in particular for a pressure vessel (4) of a domestic steam ironing device (1), with a container neck (11) which in its outer diameter is adapted to an inner diameter of a filler neck (7) of the pressure vessel (4) characterized in that the container (8) with a suction device for sucking residual liquid (R) from the tank is combined, wherein further in the container (8) has a sub-chamber (18) for fresh liquid (F) and one of them liquid-separated Partial chamber (16) for residual liquid (R) are formed. Water refill container according to claim 1 or in particular according thereto , characterized in that the fresh liquid sub-chamber (18) is closed by a valve (19) which is to be opened during insertion of the container neck (11) into the tank opening through an opening part, wherein preferred - the opening part is a push rod (26). Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that the pressure ram (26) is fixedly connected to the valve (19). Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that a suction line (13) is provided, which opens into the residual liquid sub-chamber (16), wherein - preferably - the residual liquid sub-chamber (16) and the Fresh liquid sub-chamber (18) communicates with the same in the filling position of the container (8) resulting, closed air space (24) and / or the suction line (13) to the valve (19) is firmly connected. Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that the container neck (11) has a fresh liquid dispensing opening (15), wherein - preferably - the residual liquid suction opening (14) and the fresh liquid dispensing opening (15 ) are arranged on the container neck (11) axially offset from one another and / or the suction opening (14) in the suction direction in front of the dispensing opening (15) is arranged. Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that the residual liquid suction line (13) and the fresh liquid dispensing line (12) in the container neck (11) are formed as concentric lines. Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that the fresh liquid sub-chamber (18) is formed in dispensing position above the residual liquid sub-chamber (16), wherein - preferably - the residual liquid suction line (13) Fresh liquid sub-chamber (18) passes through and / or a vent line (21) while passing through the fresh liquid sub-chamber (18) in the dispensing position with the air volume (24) is connected. Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that at least on the fresh liquid volume in the sense of a squeeze container can be acted upon. Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that the two sub-chambers (16, 18) are separable from each other, preferably - The two sub-chambers (16,18) are screwed together. Water refill container according to one or more of the preceding claims or in particular according thereto, characterized in that the residual liquid sub-chamber (16) has a separate emptying closure (40). Method for emptying a liquid tank, in particular a water tank of a household steam ironing device (1), wherein the tank has a filling opening and the residual liquid (R) is sucked out of the tank, characterized in that at the same time as the removal of residual liquid (R) fresh liquid ( F) is introduced from a container (8) in the tank. A method according to claim 11 or in particular according thereto, characterized in that the residual liquid (R) is sucked into the same container (8) from which the fresh liquid (F) is applied, wherein - preferably - the residual liquid (R) in another partial chamber (16) of the container (8) is sucked as the sub-chamber (18) in which the fresh liquid (F) is located and / or the sucking out of the residual liquid (R) using the weight of the fresh liquid (F) is performed. Method according to claims 11 to 12 or in particular according thereto, characterized in that, in the course of introduction into the filling opening of the tank, a container opening having the suction opening (14) for the residual liquid (R) and the dispensing opening (15) for the fresh liquid (F) (11) a valve seal of the fresh liquid (F) contained part chamber (18) is opened. Method according to claims 11 to 13 or in particular according thereto, characterized in that after an automatically adjusting termination of the suction of residual liquid (R) further fresh liquid (F) by active pressurization of the fresh liquid (F) in the container (8) in the tank is applied. Process according to claims 11 to 14 or in particular according thereto, characterized in that the container neck (11) is introduced into the sump of the tank.

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