BEVERAGE PREPARATION DEVICE WITH A WASHING MEANS

Abstract

The invention relates to an appliance for the automated preparation of beverages, comprising a dispensing element (1), which comprises a plurality of dispensing openings (2) for dispensing individual beverage ingredients, and also comprising a washing device (3) for dispensing a washing fluid, wherein the washing device (3) is arranged in a retaining region (5) at a location remote from the dispensing element (1), wherein the washing device (3) can be removed from the retaining region (5), and wherein an accommodating region (4), which is designed to accommodate at least part of the washing device (3), is provided on the dispensing element (1), wherein a valve element (2) is provided, said valve element comprising a flushing-fluid inlet (23), an ingredients inlet (24) and a fluid outlet (25), which is connected to at least one dispensing opening (2), wherein the flushing-fluid inlet (23) opens out into a flushing-fluid channel and the ingredients inlet (24) opens out into an ingredients channel, and wherein the flushing-fluid channel and the ingredients channel come together to form a common fluid channel, which opens out into the fluid outlet (25).

Claims

1. A device for the automated preparation of beverages, comprising a dispensing element (1), which comprises a plurality of dispensing openings (2) for dispensing individual beverage ingredients, and a washing means (3) for dispensing a rinsing liquid, wherein the washing means (3) is arranged in a holding area (5) at a distance from the dispensing element (1), wherein the washing means (3) can be removed from the holding area (5), and wherein a receiving area (4) is provided on the dispensing element (1), which is designed for at least partially receiving the rinsing means (3), characterized in that a valve element (22) is provided, which comprises a rinsing liquid inlet (23), an ingredient inlet (24) and a liquid outlet (25), which is connected to at least one dispensing opening (2), wherein the rinsing liquid inlet (23) opens into a rinsing liquid channel and the ingredient inlet (24) opens into an ingredient channel, and wherein the rinsing liquid channel and the ingredient channel converge to a common liquid channel, which opens into the liquid outlet (25).

2. The device according to claim 1, characterized in that the washing means (3) comprises a mechanically or electronically actuated outlet valve (6), such as a pressure valve or a magnetic valve, for the rinsing liquid.

3. The device according to claim 1, characterized in that the receiving area (4) is substantially circular and in that the washing means (3) comprises a projecting, substantially circular edge element (13), which is designed for being inserted into the receiving area (4).

4. The device according to claim 3, characterized in that a first sealing element (7) surrounding the edge element (13) is arranged on the free end of the edge element (13).

5. The device according to claim 1, characterized in that a magnetic holding element (8) is arranged in the receiving area (4) of the dispensing element (1), the holding element being designed to cooperate with at least part of the washing means (3), in particular with the edge element (13), or in that a magnetic holding element (8) is arranged on the washing means (3), in particular on the edge element (13), the holding element being designed to cooperate with at least part of the receiving area (4) of the dispensing element (1).

6. The device according to claim 5, characterized in that the magnetic holding element (8) is designed as a magnetic ring or as circular arrangement of multiple magnets (10).

7. The device according to claim 1, characterized in that a substantially circular second sealing element (9) is arranged in the receiving area (4).

8. The device according to claim 7, characterized in that the second sealing element (9) is arranged between the magnetic holding element (8) and the edge element (13) of the washing means (3) when the washing means (3) is arranged on the receiving area (4) of the dispensing element (1).

9. The device according to claim 1, characterized in that the receiving area (4) is bounded by an outer wall (14).

10. The device according to claim 9, characterized in that the outer wall (14) has a rounding or bevel (15) on its inner circumference.

11. The device according to claim 1, characterized in that an outlet channel (11) is provided in the washing means (3) for discharging excess rinsing liquid via an outlet opening (12).

12. The device according to claim 1, characterized in that the washing means (3) is movably arranged in the holding area (5) and is designed to dispense the rinsing liquid when it is arranged in the holding area (5) and is vertically displaced relative to the holding area (5).

13. The device according to claim 2, characterized in that the outlet valve (6) is designed in the form of a rotary nozzle.

14. The device according to claim 11, characterized in that a double hose (18) with an inner hose (19) and an outer hose (20) is arranged on the outlet opening (12), the inner hose (19) being designed to provide the rinsing liquid and the outer hose (20) being designed to discharge the rinsing liquid.

15. The device according to claim 1, characterized in that at least one, preferably two opposite, sensor elements are provided in the receiving area (4) of the dispensing element (1), which are designed to cooperate with at least part of the washing means (3), in particular with the edge element (13), in order to indicate to a control unit the complete coupling of the washing means (3) with the receiving area (4).

16. The device according to claim 15, characterized in that the sensor element is designed as a magnetic reed contact (16).

17. The device according to claim 1, characterized in that the valve element (22) comprises a first valve (26), the first valve (26) being arranged such that, in a first valve position, the flow of liquid between the rinsing liquid inlet (23) and the liquid outlet (25) is or can be prevented, and, in a second valve position, the flow of liquid between the rinsing liquid inlet (23) and the liquid outlet (25) is or can be enabled.

18. The device according to claim 17, characterized in that the valve element (22) is connected to the control unit, and in that the control unit is designed to change the valve position of the valve element (22) when the washing means (3) is completely coupled with the receiving area (4), in particular to move the valve element (22) into the second valve position.

19. The device according to claim 1, characterized in that the valve element (22) has an inlet and an outlet in order to supply and discharge cooling liquid.

20. The device according to claim 15, characterized in that the control unit is designed to control the temperature of the rinsing liquid fed to the washing means (3) and/or to supply rinsing liquid of different temperatures to the washing means depending on the position of the washing means (3).

21. The device according to claim 20, characterized in that the control unit is designed to supply the washing means (3) with rinsing liquid at a temperature between 5° C. and 30° C. when the washing means (3) is coupled with the receiving area (4), and supply rinsing liquid to the washing means (3) at a temperature of more than 40° C. when the washing means (3) is arranged at a distance from the receiving area (4).

Description

[0049] In the following, the invention is explained in detail by means of an exemplary embodiment. The exemplary embodiment merely illustrates the invention and is not intended to limit the scope of protection. In the figures:

[0050] FIG. 1 shows a schematic lateral sectional view of an arrangement of a washing means on a dispensing element:

[0051] FIG. 2 shows a schematic lateral sectional view of a device according to the invention;

[0052] FIG. 3 shows a schematic view of the dispensing element from above;

[0053] FIG. 4a shows a perspective view of a valve element for use with a device according to the invention:

[0054] FIG. 4b shows a sectional view of the valve element of FIG. 4a.

[0055] FIG. 1 shows a schematic lateral sectional view of an arrangement of a washing means 3 on a dispensing element 1 according to an exemplary embodiment of the present invention. For simplicity, the other elements included in a beverage preparation device are not shown in FIG. 1.

[0056] In FIG. 1, the washing means 3 is arranged on the dispensing element 1 of the device according to the invention. In this position, the dispensing element 1 can be cleaned. The dispensing element 1 comprises a plurality of dispensing openings 2, which are connected to individual ingredient containers (not shown) via lines.

[0057] The dispensing element 1 has a radially circumferential outer wall 14 with a bevel 15 on its inner surface. The bevel 15 serves the easier insertion of the washing means 3.

[0058] The outer wall 14 surrounds the receiving area 4, wherein a circular holding element 8 is arranged in the receiving area 4. In this exemplary embodiment, the holding element 8 is designed as circular arrangement of multiple magnets 10, as shown in FIG. 3, which is described in detail below.

[0059] Between the holding element 8 and the washing means 3, a second sealing element 9 is arranged, which is designed in the form of a circular seal ring.

[0060] The washing means 3 according to the exemplary embodiment shown here comprises a circular edge element 13, which projects from the washing means 3. The edge element 13 has a free end, on which a first sealing element 7 is arranged. The first sealing element 7 surrounds the free end of the edge element 13 completely and is of substantially U-shaped design.

[0061] On its free end, the edge element 13 has a magnetic element 17, which in this exemplary embodiment is formed as a steel ring. The magnetic element 17 is located under the first sealing element. In other exemplary embodiments, the magnetic element 17 may be of any other design, as long as it is able to interact with the magnets 10 of the holding element 8. Preferably, the magnetic element 17 is made of or comprises a magnetic or ferromagnetic material.

[0062] The washing means 3 comprises an outlet valve 6 for dispensing rinsing liquid. In this exemplary embodiment, the rinsing liquid is tap water, but it may alternatively be water with a cleansing additive, such as a detergent.

[0063] An outlet channel 11 is arranged in the area of the outlet valve 6, which is designed for discharging the rinsing liquid. The rinsing liquid may be discharged via the outlet channel 11 and the subsequent outlet opening 12. On the outlet opening 12, a double hose 18 is arranged, which comprises an inner hose 19 and an outer hose 20. The inner hose 19 serves the supply of rinsing liquid, while the outer hose 20 serves its discharge.

[0064] FIG. 2 shows a schematic lateral sectional view of an inventive device according to the exemplary embodiment. In contrast to FIG. 1, the dispensing element 1 and the washing means 3 are arranged at a distance from one another in this view; the washing means 3 is positioned in the holding area 5 at a distance from the dispensing element 1. The features of the dispensing element 1 and the washing means 3 are not explained again here and correspond to those described in connection with FIG. 1. Additionally, the housing 21 of the device is shown, in which control devices, connecting hoses and other means are arranged. Here, these means are not shown for convenience, but it is obvious to a person skilled in the art what means and elements may be involved. The respectively used means have no influence whatsoever on the effect of the invention and can be chosen at will within the scope of general expert knowledge.

[0065] Via hoses 30, each dispensing opening 2 is connected to a valve element 22, which is shown in detail in FIG. 4a and FIG. 4b. The valve element 22 is used to supply ingredients and rinsing liquid to clean the dispensing openings 2 from the inside. The device of this exemplary embodiment comprises four valve elements 22, which are not shown individually in FIG. 1.

[0066] FIG. 3 shows a schematic view of the dispensing element 1. The circular outer wall 14 with its bevel 15 surrounds the dispensing element 1. In the central area of the dispensing element 1, dispensing openings 2 are arranged, each of which is designed to dispense one ingredient for a mixed beverage. In the outer area of the dispensing element 1, the holding element 8 is arranged, which is formed from a plurality of magnets 10 arranged in a circle. The holding element 8 is designed to interact with the edge element 13, in particular with the magnetic element 17, of the washing means 3, as already explained in detail above.

[0067] In the outer area of the dispensing element 1, two reed contacts 16 are further arranged, which are designed to detect whether the washing means 3 is positioned on the dispensing element 1. In this exemplary embodiment, the control device of the device according to the invention does not enable the dispensing of rinsing liquid until the washing means 3 is correctly arranged.

[0068] FIG. 4a shows a perspective view of a valve element 22 for use with a device according to the invention, while FIG. 4b shows a sectional view of the valve element of FIG. 4a along sectional plane A.

[0069] The valve element comprises six ingredient inlets 24, six liquid outlets 25 and a rinsing liquid inlet 23. The ingredient inlets 24 are connected via hose lines, which are not shown, to supply devices, for example pumps, for supplying liquid beverage ingredients. Each liquid outlet 25 is connected to a dispensing opening 2 of the dispensing element 1 via a separate hose 30. The rinsing liquid inlet 23 is connected to a rinsing liquid supply via a hose, which is not shown.

[0070] Inside the valve element 22, each ingredient inlet 24 opens into an ingredient channel 28 and the rinsing liquid inlet 23 opens into a rinsing liquid channel 27. The rinsing liquid channel 27 joins each ingredient channel 28 to form a separate liquid channel 29, which terminates in the liquid outlet 25. This allows simultaneous rinsing of each dispensing opening 2 with rinsing liquid.

[0071] The supply of rinsing liquid is controlled by a first valve 26, which is preferably connected to the control device.

[0072] A non-return valve 31 is arranged in each of the ingredient channel 28 and the rinsing liquid channel 27 upstream of the confluence of the ingredient channel 28 and the rinsing liquid channel 27. These two non-return valves 31 are positioned so that an ingredient flowing through the ingredient channel 28 cannot enter the rinsing liquid channel 27. Conversely, the rinsing liquid flowing through the rinsing liquid channel 27 cannot enter the ingredient channel 28. Thus, both ingredients and rinsing liquid can only exit through the dispensing opening 2 and cannot enter other areas.

[0073] The device according to the invention comprises four valve elements 22, since twenty-four dispensing openings 2 are provided, each coupled with its own ingredient inlet 24.

LIST OF REFERENCE SIGNS

[0074] 1 dispensing element [0075] 2 dispensing opening [0076] 3 washing means [0077] 4 receiving area [0078] 5 holding area [0079] 6 outlet valve [0080] 7 first sealing element [0081] 8 holding element [0082] 9 second sealing element [0083] 10 magnet [0084] 11 outlet channel [0085] 12 outlet opening [0086] 13 edge element [0087] 14 outer wall [0088] 15 bevel [0089] 16 reed contact [0090] 17 magnetic element [0091] 18 double hose [0092] 19 inner hose [0093] 20 outer hose [0094] 21 housing [0095] 22 valve element [0096] 23 rinsing liquid inlet [0097] 24 ingredient inlet [0098] 25 liquid outlet [0099] 26 first valve [0100] 27 rinsing liquid channel [0101] 28 ingredient channel [0102] 29 liquid channel [0103] 30 hose [0104] 31 non-return valve