EP2490822A1

EP2490822A1 - Metering dispenser

Info

Publication number: EP2490822A1
Application number: EP10781819A
Authority: EP
Inventors: Werner Holzmann
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-23
Filing date: 2010-10-23
Publication date: 2012-08-29
Anticipated expiration: 2030-10-23
Also published as: US20120298694A1; DE202009014316U1; CN102665929A; BR112012009480A2; EP3045230A1; BR112012009480B1; EP3045230B1; CN102665929B; KR20120098747A; EP2490822B1; WO2011047882A1; KR101696506B1; US9346069B2

Abstract

In order to provide a simple and installation-friendly design of an setting unit of a dispenser (10) for dispensing a substance consisting of at least two components from at least two containers, each having a pump unit (12a, 12b), by means of a moveable actuating device (40) for the pump units (12a, 12b) and a dispenser nozzle for the substance to be dispensed, according to the invention the setting unit (38) can be varied with respect to the distance thereof to the containers or the pump units (12a, 12b), or with respect to the distance of the projections (61a, b) thereof in relation to a pivot axis (43) of the actuating device (40), in particular in opposite directions.

Description

description

DOSIERSPENDER The invention relates to a dispenser for the delivery of a substance consisting of at least two components with the preamble features of claim 1.

From EP 1 104 336 a metering dispenser is known in which the mixing ratio of two pasty or liquid fluid components is infinitely adjustable. The dosing dispenser is a considerable relief for the consumer, who can choose the mixing ratio of the fluid components themselves and vote on his personal needs or the intended use of the mixed components. In the dosing dispenser here two cartridges with associated pumps are provided, which via a verschenkbares transmission element whose pivot axis relative to the pump - or their

Displacement - is displaceable, be operated.

A disadvantage of the known metering dispenser is that the transfer element simultaneously serves to adjust the mixing ratio of the fluid components. In case of failure of the transmission element thus no removal can be done from the dosing dispenser. In addition, due to the dual function of the transmission element whose structure and installation is relatively complicated.

It is the object of the present invention to overcome the disadvantages of the prior art and to provide a dispenser having a structurally simple and easy-to-assemble mixing ratio setting mechanism.

This object is achieved by a dispenser with the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims. According to the invention, a dispenser is provided for dispensing a substance consisting of at least two components, the dispenser comprising at least two containers for receiving the components of the substance. The containers can be designed in the manner of cartridges, ie with a rigid jacket, but also as elastic bottles or bags. An embodiment with fixed connection of the respective container with the dispenser is also provided, as a detachable, the replacement of the cartridges and their movement or displacement in the dispenser during the dispensing or dispensing operation enabling execution. The design of the container also depends on the viscosity of the components and their removal behavior. Furthermore, at each the container is arranged a pumping unit, via which a removal of the respective components takes place. The pump units can be designed as a piston pump, as a bellows pump or in any other suitable construction. The dispenser according to the invention further comprises an adjusting device with which the quantitative ratio of the components of the substance to be metered is adjustable, as well as a movable actuating device for the pumping unit and a dispensing nozzle for the substance dispensed by the dispenser.

The dispenser is characterized in that the adjusting device is variable in its distance from the containers or the pumping devices or at a distance from projections provided on the adjusting device with respect to a pivot axis of the actuating device, in particular in opposite directions. Preference is given to a rotatable about its vertical axis wedge disk, a helical or stepped stepped wedge ring or ring with projections, which are designed, for example, like a mandrel provided. The rotatable wedge disk, the rotatable wedge ring or the ring is fixed or releasably connected to the actuator or this assigned loose or placed in the manner of a thrust bearing on this. The rotatable wedge disk or the rotatable wedge ring is formed with a relative to the horizontal angled spacer surface and a preferably horizontally oriented support surface, so that these areas include an acute angle. In the condition of use, i. when installing the adjustment means in a dispenser, it is arranged so that the clearance surface faces the containers or pumping units and the support surface of the actuator, but at most dosing settings (except at 50:50) have a different distance from the containers or pumping means ,

An adjustment of the mixing ratio of the components by changing the relative position of the wedge disk, the wedge ring or the projections and the associated change in the distance of the wedge disk or the wedge ring or the points of application of the projections on the pumping units or the containers or container bottoms. Due to the formation of the wedge disk or the wedge ring, the stroke of the pumping units and thus the amount of subsidized via the respective pumping unit component is changed. The design of the wedge disk or wedge ring surface is chosen so that an opposite change in the component delivery is brought about. Thus, only the dosage ratio of the components is adjusted to each other, the total delivery rate remains substantially constant. However, it is also conceivable, by adjusting the position of the adjusting device relative to the pumping units or the containers or by changing the height of the adjusting device, the total delivery volume to adjust. The two components can be mixed, in particular in an applicator according to WO 2006/111273 or optionally unmixed discharged.

The dispenser according to the invention has a much simpler construction in comparison to the dispenser described above, since the adjusting device is designed as a separate, simply executed unit which acts precisely adjustable on the pumping units. By a possible standing arrangement of the pumping units, the dosing dispenser can be made compact. In addition to an immediate loading of the pumping units by the adjusting device or the actuating device, it is also possible to arrange the pumping units firmly in the dispenser and, mediated by the adjusting device or the actuating device, to act on the containers, which then move into the pumping units with the respectively set stroke are pressed, wherein the delivery of a defined according to the mixing ratio component amount occurs.

It is considered advantageous if the actuating device is designed to be pivotable about an axis extending perpendicularly to the vertical axis of the wedge disk, of the wedge ring or of the ring and in the plane of the actuating device. The actuator remains constant in an axis in their distance from the containers or pump units and thus can always swing back to its original position. In an advantageous embodiment of the invention, on the other hand, the actuating device is designed to be displaceable along the vertical axis of the wedge disk, the wedge ring or the ring. The dispenser or its outer jacket then serves as an axial guide for the actuating device, which dips into the dispenser when actuated until the maximum displacement depth defined by the adjusting device is reached and dispensing of the set component quantity in the mixing ratio defined by the position of the adjusting device is done.

It proves to be advisable to make the adjusting device rotatable via the actuating device, since then the integration of volume adjustment and dispensing operation can be realized in one component. In addition, however, there is the possibility, in particular in a separate embodiment of adjusting and actuating device, that the adjusting device has a separate rotary handle for adjusting the mixing ratio. It proves to be favorable in this context if the rotary handle is arranged on the circumference of the adjusting device, in particular on the circumference of the wedge disk, of the wedge ring or ring. The rotary handle can be formed in an advantageous manner as an actuating or sliding lever for adjusting the rotational position of the adjusting device. In addition, there is also the Possibility that a corrugation or other roughening on the circumference of the wedge disk, the wedge ring or the ring is provided, whereby the rotation of the adjusting device is substantially simplified.

By adjusting the position of surface portions of the wedge disk or the wedge ring or the position of projections on the ring with respect to the pumping units, the adjusting device performs during the adjustment practically a thread or helical wobbling motion with respect to the pumping units, wherein the distance and thus attack point of Adjusting means on the pumping units is changed. It is considered favorable if the adjusting device is designed to be continuously rotatable or if it has a large number of locking positions for the defined rotation of the adjusting device. In the embodiment with stepless rotatability of the adjusting device, a free choice of the mixing ratio can be made. In the above definition of locking positions adjustable mixing ratios are given, with the number of locking positions based on the ultimate desired resolution of the mixing ratio.

Advantageously, the actuating device is substantially annular or disc-shaped, designed as a sleeve or as a push button. Furthermore, this may have a bias against the pumping units or the container in order to respond quickly and to return to its rest or initial position after the dosing process.

In the prior art described at the outset, the actuating device always has a direct effect on both pumping units, ie there is a permanent contact. The device according to the invention, however, provides that the containers or the pumping units are acted upon at different intervals (except in the middle position) by the adjusting device, with the ratio of the loading of the two containers or the pumping units being dependent on the rotational position of the wedge disk or the wedge ring and the distance surface defined thereby to the respective containers or pumping units. A development of the invention provides, with regard to the outlet devices provided in the device, that they are connected on the one hand to a respective pumping unit and on the other hand to the dispensing nozzle or brought together in this. The dispenser can thus be made particularly compact and with a low axial length. There is also the possibility that a mixing chamber upstream of the dispensing nozzle is provided into which the outlet devices open. This mixing chamber can then be arranged, for example, in the area between the pumping units or the containers. Further advantages, features and features of the invention will become apparent from the following description of preferred, but not limiting embodiments 155 of the invention with reference to the schematic drawings. Show it:

1A-1F is a schematic diagram of the adjusting device according to the invention, the one

Actuator is assigned, in different adjustment positions relative to the pumping units,

FIGS. 2A-2F show a further basic illustration of the adjusting device according to the invention, which is integrated in an actuating device, in various setting positions relative to the pumping units;

3A is a further schematic diagram of the adjusting device according to the invention, which acts directly on the container bottom surfaces.

165 Fig. 3B - 3D schematically the effect of different adjustment positions on the

Substance release or mixing ratios of the components;

Fig. 4 is a three-dimensional view of a dispenser with rotatable

Housing head;

FIGS. 5A-5F show several exemplary embodiments of a dosing dispenser in each case

170 Sectional view in 90 ° rotated positions, with the pumping units actuated by axially displaceable cartridges; and

Fig.6 five versions of the adjusting device as a combined rotary / push button.

The basic concept of the inventive dispenser 10 will first be described with reference to FIGS. 1A to 1F, according to which the adjustment of the mixture takes place by turning or displacing an adjusting device 38 relative to an actuating device 40. The adjusting device 38 is also rotatable with respect to a plurality of pump units 12a, 12b and in the exemplary embodiment with a wedge ring. The wedge ring of the adjusting device 38 is pressed by the actuating device 40 180 against the pumping units 12a, 12b. In the exemplary embodiment, the wedge ring is rotatably connected to the actuator 40 to form a unit. The rotatable wedge ring of the adjusting device 38 is formed with an angled relative to the horizontal distance surface 41 and a horizontal support surface 42, wherein it is provided that the these surfaces 41, 42 starting from a ring area with maximum height, an acute angle 185 α from here about 20 ° Include slope. The adjusting device 38 is arranged so that the spacer surface 41 facing the containers 66 or pumping units 12a, 12b and the support surface 42 of the actuator 40. The actuating device 40 is designed to be pivotable by way of example here about a pivot axis 43 running perpendicular to the vertical axis H (see FIG. 1a) of the wedge ring and approximately in the plane of the actuating device 40. The actuator 40 remains constant in their distance from the containers 66a, 66b and pump units 12a, 12b and thus can always swing back to its original position. In this case, the pivot axis 43 is attached to the actuator 40 and fixed in the dispenser 10, so compared to the prior art, not rotatable about a vertical axis, but stationary, whereby the assembly is considerably simplified. According to FIGS. 1A to 1 F, the adjusting device 38 for a dispenser 10 according to the invention has a wedge ring. The adjusting device 38 is rotatable about a vertical axis H illustrated in phantom in FIG. 1A and furthermore displaceable along the vertical axis H. The adjusting device 38 is in its center position with its spacing surface 41 on piston 26 of two pumping units 12a and 12b or is brought into abutment, so that in Fig. 1A at a time a pump stroke takes place, namely first on the right piston and then at a distance on the left Piston. The actuation takes place in the illustrated embodiment by pressing on the actuator 40 and pivoting about the stationary pivot axis 43rd

Figures 1A, 1C and 1 E respectively show the state in which the actuator 40, which is also designed in the embodiment ring-shaped or disc-shaped, is not pivoted about the pivot axis 43 and the figures 1 B, 1 D and 1 F show respectively Conditions in which the actuator 40 is pressed down about the pivot axis 43 and pivoted.

The pivoting or depression of the actuating device 40 about the pivot axis 43 can take place via a manually operable section 62 on the nozzle head 46, in which also the outlet or dispensing nozzle 52 (see Fig. 4) can be arranged for the mixture. Furthermore, the adjusting device 38 can be rotated with this nozzle head 46 so that the surface area of the wedge ring of the adjusting device 38 that bears against or can be applied to the pumping units 12a and 12b changes, as can be seen directly from FIGS. 1A to 1F. The actuating device 40 may be mounted by means of the pivot axis 43 in a bearing or holder which is rotatably connected to the nozzle head 46. With a corresponding rotation of the adjusting device 38, this is rotated below the actuator 40 and thus set the new mixing ratio. The annular surface 42 between these components acts like an axial bearing surface, which allows a relative rotation of the wedge ring of the adjusting device about the vertical axis H. If the setting device 38 is pressed downwards in accordance with the position in FIG. 1A, for example by depressing the actuating section 62 on the nozzle head 46 or the actuating device 40, only the displacer or piston 26 of the right pumping unit 12b in FIG. 1B is depressed. As a result, the pump unit 12b has a stroke or a delivery volume of 100%. The here left pump unit 12a, which is not acted upon by a force, since it is below the surface 42 with the shortest distance between the first and second surfaces 41, 42 and thus the lowest height of the wedge ring, has a lifting or a delivery volume of 0 % (relative to the total issue quantity). The discharge amount contains only components of the funded by the pumping unit 12 b component. If the adjusting device 38 is rotated by 180 ° relative to the position shown in FIG. 1A, for example via the nozzle head 46 or another suitable device, the adjusting device 38 assumes the position according to FIG. 1C in its neutral position, in which the surface area with the greatest height of the wedge ring on the displacer 26 of the left pump unit 12a is applied. If, starting from the position according to FIG. 1C, the actuating device 40 pivots downwards about the pivot axis 43, then the left pump unit 12a performs a stroke (delivery volume 100%), while the right pump unit 2b does not carry out a stroke or a delivery volume of 0 % Has. The discharge quantity contains only components of the component conveyed by the pump unit 12a.

Upon rotation of the adjusting device 38, starting from the position according to FIG. 1A or 1C by 90 ° into a middle position between the two aforementioned extremes, an orientation of the wedge ring of the adjusting device 38 according to FIG. 1E is obtained. In this middle position, the spacer surface 41 has the same distance to both pumping units 12 a and b. If, starting from the position according to FIG. 1E, the adjusting device 38 is pressed downwards, the two displacers 26 of the pumping units 12a, 12b are pressed downwards by the same distance, so that both pumping units 12a, 12b simultaneously have an identical stroke or a delivery volume of 50% of the total delivery amount. The mixture contains equal parts of the two components. At intermediate positions of the adjusting device 38 between the above-mentioned positions, corresponding intermediate ratios between the strokes or delivery volumes of the pumping units 12a, 12b result, so that they are infinitely variable between 0%: 100% and 100%: 0% for each component. In the above construction, the pivot shaft 43 is formed as a tangent protruding from the peripheral edge of the annular or plate-shaped actuator 40 journal. It is a kind of pivoting handle, while below the translational actuation is described in the manner of an axial guide. In the exemplary embodiment illustrated in FIGS. 2A to 2F, an integration of adjusting device 38 from FIGS. 1A to 1F into actuating device 40 is present. Here, an axial displacement of the combined setting / actuating device 47 takes place along its vertical axis H. To adjust the mixing ratio, the setting / actuating device 47 is rotated while the corresponding surface sections as

270 already above the pump units 12a, 12b and the associated displacers 26 already positioned. The adjusting / actuating device 47 is formed in the illustrated construction concept as an annular hollow body, with its the pump units 12a, 12b facing, helical surface 70 (with the pitch angle σ of about 15 °) to the piston 26 translationally (see

275 double arrow in Fig. 2A) is movable.

FIG. 3A shows a further basic illustration of the adjusting device 38 according to the invention, which acts directly on the bottom surfaces 67 of containers 66a, 66b. Instead of a wedge-shaped element, the adjusting device 38 in the embodiment thorn-like

280 protrusions 61a, 61b, which can be applied by pivoting the actuator 40 to the bottom surfaces 67 of the container 66a, 66b offset in time. Depending on the rotational position of the adjusting device 38 is one of the thorn-like projections (here 6), as shown in Fig. 3A, positioned below the pivot axis 43, so that here, for example, upon depression of the actuator 40 is not acted upon

285 in Fig. 3A right container 66a takes place. FIGS. 3B to 3D schematically show the effect of different setting positions or positions of the pin-like projections 61 a, 61 b below the schematically indicated pivot axis 43 on the substance delivery or mixing ratios of the components.

In the exemplary embodiments of FIGS. 1 and 2, the pistons or displacers 26 of the pumping units 12a, 12b were actuated indirectly or directly via the actuating device 40 or the adjusting device 38. A kinematic reversal may consist in that the adjusting device 38 acts on the containers 66a, 66b which are movably guided in the housing 48 and in turn act on the pumping units 12a, 12b. The can

295 displacers 26 are fixedly mounted in a housing 48, while the containers 66a, 66b are displaceable. Conversely, the displacers 26 may be mounted in the housing 48 connected to the containers 66a, 66b.

FIG. 4 shows a greatly simplified view of a dispenser 10 according to the invention with a housing 48, in which container 66a, 66b (cf.

Fig. 3A) are received for the components. The housing 48 carries the rotatable Housing head 46, on which a dispensing nozzle 52 is formed. Through this occurs over the stroke of the pumping units 12a, 12b set mixture. The adjustment of the mixture is accomplished by rotating an adjusting device 38 associated with the nozzle or housing head 46 with respect to the housing 48, for example with a marking 56 applied to the nozzle or housing head 46 which is overlapped with a scale 58 to provide a predetermined Adjust dosing ratio. In the exemplary embodiment illustrated in FIG. 4, the inventive concept indicated with reference to FIGS. 1A to 1 F is to be realized, ie the adjusting device 38 is rotated independently of the remaining nozzle or housing head 46.

In the illustrated embodiment, an opening 60 is formed in the region of the peripheral edge of the end face 54, so that a confirmation section 62 of the actuating device 40 is cut free. This actuating portion 62 is at the maximum distance to the schematically indicated pivot axis 43, so that the actuator 40 by applying an actuating force on the actuating portion 62 pivotally and thus a delivery stroke of the pumping units 12a, 12b is brought about. Of course, the cut-free nozzle or housing head 46 can also be used in the exemplary embodiment shown in FIGS. 2A, 2B with setting / actuating device 47. Alternatively, the housing head 46 could also be guided axially displaceable on the housing 48, wherein, for example, on the inner surface of the nozzle or housing head 46, an actuating pin is formed, which is brought by the axial displacement of the housing head 46 in abutment with the adjusting device 38, so that a displacement along the vertical axis H takes place.

An embodiment based on a "kinematic reversal" is shown schematically in FIG. 5A. Accordingly, in the housing 48 of the dispenser 10 again two pumping units 12a, 12b are added, which are designed in piston design. The displacers 26 are fixedly mounted in the housing 48 and designed as a so-called hollow piston, wherein the outlet or pressure valves are formed in a connected to the displacer 26 pressure channel 74. The individual pressure channels 74 of the pumping units 12a, 12b can open into a common mixing channel 96. The pump units 12a, 12b are arranged axially displaceable in the housing 48 and fastened to a respective cartridge 102, in which the components are accommodated. In the transition region of the cartridge 102, a suction valve 72 is formed, so that a backflow of the component from the displacement chamber 68 into the cartridge 102 is prevented. The cartridges 102 are guided axially displaceably in the housing 48. The adjusting device 38 is mounted here in the region of the housing 48 remote from the pumping units 12a, 12b and in turn rotatable about its vertical axis H, namely with a combined pressure and rotary knob projecting out of the housing 48 (here upwards). In contrast to the aforementioned embodiments, the adjusting device 38 does not act on the displacers 26, but on the cartridges 102, so that they are displaced in the axial direction during a displacement of the adjusting device 38. As a result of this axial displacement of the cartridges 102, they are also displaced relative to the displacers 26, so that the displacer space 68 is reduced (delivery stroke) or increased (suction stroke). The transmission of the thrust movement of the adjusting device 38 takes place in the illustrated embodiment via journals 106 which are formed on the bottoms of the cartridges 102 and the spacer surface 41 with different distances opposite each other (only in the middle position, the distance is equal). Here, the helical design of the spacer surface 41 is clearly visible, with a stepped-like design of this thread-like surface is possible if instead of a continuous adjustment, a setting in many stages is desired. In the above-described embodiment, the components of a common, central mixing chamber 92 are supplied. In principle, however, the individual components could also be conducted separately from one another to the mixing channel 96 or to the dispensing nozzle 52 so that no internal mixing takes place. The dispensing nozzle 52 may exit in the radial direction or centrally from the end face 54. As stated above, however, an applicator according to WO2006 / 111273 is preferably provided, since in this way a particularly intensive mixing is possible. In order to reduce the actuation forces when mixing highly viscous components, suitable handles can be attached to the actuator 40, which can achieve greater leverage. An example of this is shown in Fig. 5B, wherein the push and turn knob as a combined actuator 40 and adjusting 38 has a larger diameter than in Fig. 5A. Since the structure of the dosing dispenser 10 is otherwise the same, only the essential reference numerals are inserted. The same applies to the embodiment of the dosing dispenser 10 shown in Fig. 5C, which is arranged here "overhead", the dispensing nozzle 52 indicated by dashed lines being led out radially to the side Housing 48 is designed as a well-tangible rotary sleeve, so as adjusting member 38 which serves as a large-scale actuator 40 upon compression or axial stroke corresponding to the arrow in the embodiment of Fig. 5D is similar to Fig. 5B, a relatively large pressure and knob as a combined actuator 40 and 38 Einstelleinsrichtung present, in which case the spacer surface 41 is formed as a wedge surface. In Fig. 5E, the dispenser 10 is dimensioned and constructed similar to Fig. 5C, but using the fixed pivot 43 described in connection with Fig. 3A with adjoining adjuster 38, on which in turn the projections 61a, b are formed to act on the cartridges are. This structure is also used in the metering dispenser 10 of FIG. 5F, wherein the rotary and push button 104 is formed as an actuator 40 and adjusting member 38 similar to FIG. 5A. In the associated plan view, the course of the pivot axis 43 is clearly visible. In Fig. 6, several embodiments of the rotary push button 104 are each shown in side views and in sectional view. In this case, the wedge-shaped configuration (with the ramp angle α at the spacer surface 41, as well as the helical design and in the form of staircase-like graduations is visible above.) The adjustment device shown below, which has two opposing helixes as projections 61a, b, is of particular importance It is also possible for the one displacer 26 to be acted on by the outer thread (as a projection 61a) and the other displacer 26 of the second pumping unit by the inner thread (as a projection 61b) Thus, more than two pumping units can be actuated by the third and fourth pump unit are actuated by the internal thread or Wndel.The mixing ratio can thus be set in opposite directions by simply rotating about the vertical axis H.

Bezuaszeichenliste: 60 = breakthrough

10 = dispenser 61a, 61b = projection

12a, b = pump unit 62 = confirmation section

26 = displacer / piston 66a, 66b = container

38 = adjusting device 67 = bottom surface

40 = actuating device 68 = displacement

41 = distance surface 70 = surface

42 = second surface 72 = inlet valve

43 = pivot axis 74 = pressure channel

46 = nozzle or housing head 92 = mixing chamber

47 = setting / actuating device 96 = mixing channel

48 = housing 102 = cartridge

52 = dispensing nozzle 104 = rotary / push button

54 = end face 106 = investment pin

56 = mark 108 = bottom

58 = scale H = vertical axis

Claims

claims

A dispenser (10) for dispensing a substance consisting of at least two components, comprising:

at least two containers (66a, 66b) for receiving the components of the substance; a pumping unit (12a, 12b) on each of the containers (66a, 66b);

an adjusting device (38) with which the quantitative ratio of the components of the substance is adjustable;

a movable actuator (40) for the pumping units (12a, 12b); and a donor nozzle (52) for the substance to be dispensed by the dispenser (10),

characterized in that

the adjusting device (38) in its distance from the containers (66a, 66b) and the

Pumping devices (12a, 12b) or at a distance from their projections (61a, b) relative to a pivot axis (43) of the actuating device (40) is variable, in particular in opposite directions.

2. Dispenser (10) according to claim 1, characterized in that

the pivot axis (43) of the actuator (40) in the plane of

Actuator (40) extends and is stationary to the dispenser housing (48).

3. dispenser (10) according to claim 1, characterized in that

the actuating device (40) is designed to be displaceable along the vertical axis (H) and the dispenser (10) has a guide for the actuating device (40).

4. dispenser (10) according to any one of the preceding claims,

characterized in that

the adjusting device (38) is rotatable via the actuating device (40) or has a separate rotary handle.

5. dispenser (10) according to claim 4, characterized in that the rotary handle on the circumference of the adjusting device (38) is arranged.

6. dispenser (10) according to claim 4 or 5, characterized in that the rotary handle an actuating or sliding lever for the adjustment of

Twisting position of the adjusting device (38).

7. Dispenser (10) according to claim according to one of the preceding claims,

characterized in that the adjusting device (38) is designed to be infinitely rotatable or has a plurality of latching positions for the defined rotation of the adjusting device (38).

8. dispenser (10) according to any one of the preceding claims,

characterized in that

the containers (66a, 66b) or the pumping devices (12a, 12b) can be acted upon by the adjusting device (38), the ratio of the loading of the containers (66a, 66b) or of the pumping units (12a, 12b) being dependent on the distance of a spacer surface (41) to the respective containers (66a, 66b) or pumping units (12a, 12b).

9. dispenser (10) according to any one of the preceding claims,

characterized in that

the pumping units (2a, 12b) are connected to the dispensing nozzle (52).

10. Dispenser (10) according to one of the preceding claims,

characterized in that

the actuating device (40) is formed substantially annular or disc-shaped, as a sleeve or as a push button.

11. Dispenser (10) according to one of the preceding claims,

characterized in that

the containers (66a, 66b) or the pumping devices (12a, 12b) can be acted upon by the adjusting device (38), the ratio of the loading of the containers (66a, 66b) or of the pumping units (12a, 12b) being dependent on the distance of the Protrusions (61a, b) to the respective containers (66a, 66b) or pumping units (12a, 12b).

12. Dispenser (10) according to claim 1, characterized in that

the adjusting device (38) as the actuating device (40) associated, rotatable wedge disk or as a helical wedge ring with an angle to the horizontal or step-like stepped spacer surface (41) or as a ring with

Projections (61 a, b) is formed, which the containers (66 a, 66 b) or the

Pumping devices (12a, 12b) facing the actuator (40) is / are.

13. Dispenser (10) according to claim 12, characterized in that

the adjusting device (38) is rotatable about the vertical axis (H),

14. Dispenser (10) according to claim 12 or 13, characterized in that

the adjusting device (38) and the actuating device (40) are made in one piece, in particular as a combined rotary / push button (104).