WO2023126292A1

WO2023126292A1 - Actuation device for a cleaning device, cleaning device, and cleaning system comprising two or more cleaning devices

Info

Publication number: WO2023126292A1
Application number: PCT/EP2022/087398
Authority: WO
Inventors: Tobias Dux
Original assignee: Alfred Kärcher SE & Co. KG
Priority date: 2021-12-27
Filing date: 2022-12-22
Publication date: 2023-07-06
Also published as: DE102021006504A1

Abstract

The invention relates to an actuation device for a cleaning device (12, 22, 23, 24; 84), comprising a housing (26) with a housing part which faces an operator; an electric unit (32) with at least one switch element which is arranged in the housing (26); a controllable display unit which is arranged in the housing (26), wherein the housing part (30) comprises an actuation element (58) which comprises or forms at least one actuation region (70) that is operatively connected to the at least one switch element (36), and the actuation element (58) is converted from a base position to at least one actuated position upon being actuated; and a transparent cover element (57) which covers the display unit (37) and is connected to the actuation element (58) and which is moved by actuating the actuation element (58). The display unit (37) is operatively connected to the housing part (30) and is moved together with the housing part when the actuation element (58) is actuated. The invention additionally relates to a cleaning device (12, 22, 23, 24; 84) and a cleaning system (10).

Description

ACTUATION DEVICE FOR A CLEANING DEVICE, CLEANING DEVICE AND CLEANING SYSTEM WITH TWO OR MORE CLEANING DEVICES

The present invention relates to an actuating device for a cleaning device.

In addition, the present invention relates to a cleaning device with an actuating device.

Furthermore, the present invention relates to a cleaning system with two or more cleaning devices, which comprise a cleaning device of a first type and a cleaning device of a second type, which differs from the first type.

It is the object of the present invention to provide an actuating device for a cleaning device with the possibility of outputting improved perceptible visual information for the operator.

This object is achieved by an actuating device for a cleaning device, comprising a housing with a housing part facing an operator, an electrical unit with at least one switching element arranged in the housing, a controllable display unit arranged in the housing, the housing part comprising an actuating element which has at least one actuating area comprises or forms, which is in operative connection with the at least one switching element, wherein the actuating element is transferred from a basic position into at least one actuating position when actuated, as well as a transparent cover element covering the display unit, which is connected to the actuating element and is moved by actuating the actuating element, where the display unit is in operative connection with the housing part and is moved when the actuating element is actuated.

In the case of the actuating device according to the invention, a housing part facing the operator comprises an actuating element and a cover element connected to this for the controllable display unit. Actuation of the at least one actuation area leads to a movement of the actuation element and, for example, of the housing part as a whole relative to the rest of the housing, which results in a movement of the display element. The display unit is in operative connection with the housing part, in particular the actuating element, and is also moved. This preferably makes it possible to avoid any disruptive reflections or mirroring of light emitted by the display unit, for example on the cover element. In this way, visual information on the display unit can be better perceived by the operator.

The at least one switching element can be directly or indirectly operatively connected to the at least one actuation area.

The actuating element can be connected directly or indirectly to the cover element.

The housing can be completely or at least partially closed.

The movement of the actuating element during actuation can take place, for example, against the action of a restoring element, which will be discussed below.

In the present case, "transparent" can be understood in particular to mean that light of the visible spectrum is at least partially let through by the cover element, and includes "translucent" in particular. Preferably, the cover member is transparent to all or substantially all of the visible spectrum. A side of the actuating device that faces the operator is also referred to below as the "top side", and a side that faces away from the operator as the "bottom side", in particular independently of the orientation of the actuating device in space.

The housing part can, for example, be tilted on the housing for transferring from the basic position into the at least one operating position.

Movable mounting of the housing part on the housing can also be provided, for example in a pivotable and/or displaceable manner.

In a preferred embodiment of the invention, the display unit is operatively connected to the housing part such that the display unit is moved in the same direction as the cover element and/or synchronously with the cover element.

Provision can be made for the cover element to be connected or formed in one piece with the actuating element.

The housing part can, for example, be designed in one piece overall. This can be understood in particular as a monolithic configuration.

The housing part can, for example, form the cover element and the actuating element.

The housing part can be disc-shaped, for example.

The housing part can in particular form an upper housing wall and/or a housing cover of the housing. The actuating element can, for example, surround the covering element in the form of a ring, for example if a plurality of actuating regions are present.

It can be provided that the housing part extends over an entire side of the housing facing the operator.

The display unit is preferably positioned adjacent to the cover element, the display unit being arranged immediately laterally next to the cover element, for example. For example, the planes defined by the cover element and the display unit are aligned parallel to one another.

The display unit is preferably connected to the housing part. In particular, a connection to the cover element can prove to be advantageous.

The connection is preferably made by gluing. For example, the display unit is glued to the cover element on the side facing away from the operator via an adhesive layer. Gluing can take place, for example, via OCA bonding. As a result, an optical coupling can preferably take place in such a way that light reflections between the cover element and the display unit can be avoided.

The display unit is fixed, for example, in the housing hanging on the housing part, in particular on the cover element and specifically by gluing.

In a preferred embodiment of the invention, a layer or a coating can be arranged on the side of the housing part facing away from the operator, which layer or coating leaves out a transparency area for light emitted by the display unit in the area of the cover element. The emitted light can pass through the window-shaped transparency area, for example and seen through the cover member by the operator to capture visual information.

The layer or coating preferably includes a light-absorbing area on the actuator. At least part of the spectrum can be absorbed by the light-absorbing region. This gives, for example, the possibility of designing the actuating element in a colored manner in a structurally simple manner.

The housing part can preferably be designed to be transparent on the actuating element, as a result of which the color of the actuating element can be defined via the layer or coating.

The layer or coating can be printed onto the housing part, for example. For example, a housing part that is transparent overall is printed on the underside to form the light-absorbing area, with a transparency area being left out.

The light-absorbing area comprises or forms, for example, an identification of the at least one actuation area. For example, at least one pictogram or symbol that can be understood intuitively by the operator is used to identify the operating area.

Provision can be made for the transparency area to be smaller than a light-emitting section of the display unit, in particular an image display of the display unit, with a contour of the transparency area lying entirely within a contour of the light-emitting section. The somewhat window-shaped transparency area can be smaller than the light-emitting section. In this way, the operator only sees part of the display unit and the operator may not be able to see inside the housing. In this way, the visual information can be better perceived in the absence of distracting or disruptive influences. The light-absorbing area preferably completely surrounds the transparency area in a plan view of the housing part.

In a preferred embodiment of the invention, it can be provided that the housing part comprises an actuating element formed separately from the cover element, with the actuating element being in non-positive and/or positive engagement with the covering element.

In such an embodiment it can be provided that the actuating element preferably surrounds the cover element in a ring shape.

In the embodiment mentioned, it can be provided, for example, that the housing part has no layer or coating on the underside. The actuating element can, for example, be of a different color than the covering element and can include or form an identification of the at least one actuating area.

The actuating element of the mentioned embodiment can, for example, extend beyond an outer edge of the actuating device, for example in the direction away from the operator, wherein the actuating element at least partially surrounds a housing side wall part of the housing and, for example, engages with it.

Provision can be made for the electrical unit to comprise two or more switching elements and for the actuating element to comprise or form two or more actuating areas, by actuation of which the actuating element is transferred into a respective actuating position, with a respective actuating area being assigned a switching element. The operating areas are located at different positions of the operating element. Depending on which actuation area the operator actuates a respective switching element is actuated. The actuating device can be equipped with a plurality of functions via the two or more actuating areas and switching elements.

For example, at least one of the following functions can be initiated via the actuation areas: switching on, switching off, calling up a menu, exiting a menu, moving within a menu, making a change to a setting within a menu.

In a preferred embodiment of the invention, four operating areas can be provided, for example.

The two or more actuation areas are arranged, for example, along the same angular distances in relation to an axis of the actuation device on the actuation element.

For example, two actuation areas are provided, which are arranged diametrically opposite one another with respect to an axis of the actuation device.

For example, four operating areas are provided, each distributed over an angular distance of 90°.

For example, in plan view, the actuating device has a ring-shaped actuating element and, with respect to this, an internal display unit (beneath the cover element).

The at least one actuation area is arranged or formed, for example, on an outer edge of the housing part.

The display unit can include a controllable image display, for example. A color image display is preferably provided. The display unit is advantageously electrically connected to a printed circuit board of the electrical unit via a cable connection. The cable connection can be made in particular via a ribbon cable or flex cable. The cable connection proves to be advantageous in view of the fact that the display unit is moved when it is actuated.

Avoiding a fixed connection of the display unit to the circuit board preferably reduces the susceptibility of the actuating device to fall damage.

The at least one switching element is, for example, a microswitch or a microbutton.

For example, the at least one switching element has a defined haptically and/or acoustically detectable switching point.

It can be favorable if the actuating device comprises a preferably elastically deformable damping element, against the effect of which the actuating element can be transferred from the basic position into the at least one actuating position. The damping element can be used, for example, to adapt a force to be applied by the operator to actuate the actuating device with regard to a pleasant feel.

The damping element forms, for example, a restoring element for the actuating element. After actuation, the damping element can, for example, deform back, as a result of which the actuation element is transferred from the at least one actuation position back into the basic position.

In a preferred embodiment, the cushioning element can be, for example, a portion of the actuating element which is stretched by its actuation. Here, the actuating element can be foil-shaped or membrane-shaped, for example, at least on the damping element. A Pressure on the actuator can result in stretching of the actuator, which acts as a cushioning element. If the pressure is removed, the actuating element can contract again.

A TPE material (TPE, thermoplastic elastomer), for example, can be used as the material for the actuating element.

In a preferred embodiment of the invention it can be provided that the damping element is formed separately from the actuating element and is positioned between the housing part and a further housing part, the actuating element being supported on the further housing part via the damping element.

Such a damping element consists, for example, of a foam material or includes a foam material. For example, materials with a closed-cell and preferably waterproof structure (cellular rubber) or with a closed-cell outer skin (foam rubber) can be used as the foam material. All types of rubber are conceivable. Chloroprene rubber (CR.) or ethylene-propylene-diene rubber (EPDM), for example, can prove to be advantageous.

The damping element preferably forms the housing parts relative to one another.

The further housing part is in particular a housing side wall part which at least partially forms a side wall of the housing.

The damping element is designed, for example, in the shape of a ring and preferably runs along the entire outer circumference of the housing.

The damping element can be connected to the housing part and/or to the further housing part, for example by gluing. It was already mentioned at the outset that the at least one actuating area can be indirectly operatively connected to the switching element.

For example, the actuating device comprises at least one actuating member which is movably held on a holding part and via which the actuating element is in operative connection with the at least one switching element and which actuates the at least one switching element when the actuating element is transferred into the at least one actuating position. For example, a pressure on the at least one actuating area acts on the actuating member, which in turn acts on the switching element.

The at least one actuating member is preferably formed on the holding part. Here, for example, a film hinge can be provided, via which the actuating member can move relative to the holding part.

In the case of a plurality of actuation areas and switching elements, it is expediently provided that a plurality of actuation members are movably held on a common holding part and, in particular, are formed onto it. In particular, a respective actuating member is assigned to a respective actuating area.

The at least one actuating member is preferably a lever member. The at least one switching element can, for example, be arranged laterally offset relative to the actuation area, based on a plan view of the actuation device. In practice, the use of a lever member has proven to be advantageous with regard to setting the force that can be applied to actuate the switching element. In practice, the lever member also proves to be advantageous for the acoustic and/or haptic perception of the actuation of the switching element. For example, a clicking noise, especially in the case of a micro switch or a micro button, can be easily heard by the user.

The lever member may preferably be travel-enlarging. For example, a

Force path from the point of action of the actuating area on the lever member to to the film hinge is smaller than a load path of an area of action of the lever member on the switching element.

It can be advantageous if the holding part forms a frame which surrounds the display unit which is not in contact with the holding part at least in the basic position of the actuating element. The display unit can be arranged at least partially within the contour of the holding part via the frame. This can prove to be advantageous, for example, with regard to a flat construction of the actuating device.

The holding part can be, for example, a housing side wall part that at least partially forms a housing side wall.

The housing can, for example, comprise a housing base with a housing base, the electrical unit resting on the housing base and being covered by the housing base on the underside.

Alternatively, it can be provided that a printed circuit board of the electrical unit forms a housing base, the printed circuit board being connected to a housing part, in particular a housing side wall part.

For example, two housing side wall parts that are connected to one another, in particular that are in engagement with one another, can be provided.

The electrical unit can, for example, comprise an electrical connection element for connecting an electrical line, preferably on an underside of the housing. The actuating device can be connected to an electrical device of the cleaning appliance, for example, via the electrical line. Actuating impulses can be transmitted to the electrical device via the line, for example. Provision can be made for the electrical unit to be supplied with electrical energy via the line, with the electrical energy being provided, for example, by a battery in the cleaning device.

The electrical unit can, for example, comprise a communication link for wireless communication with an external electrical device. The external electrical device can, for example, be a device of the cleaning device or of a particularly portable additional device.

The actuating device is preferably designed to be splash-proof.

The actuating device preferably comprises at least one rechargeable battery. The battery can be arranged in the housing or alternatively outside of the housing.

The actuating device can be designed in the form of a puck, for example. Alternatively or additionally, the housing can be puck-shaped.

In a preferred embodiment of the invention, the actuating device can comprise a receiving part for the housing, the receiving part having an opening into which the housing is inserted.

The receiving part preferably has a battery compartment for receiving at least one battery, which is arranged externally to the housing and is electrically connected to the electrical unit.

The battery compartment can preferably include a cover element that can be opened to remove the battery.

As mentioned at the outset, the present invention also relates to a cleaning device. The object of the invention is to provide a cleaning device with an actuating device of the type described above. This object is achieved by a cleaning device according to the invention with at least one cleaning tool, wherein the cleaning device comprises at least one actuating device of the type described above and an electrical device which is electrically connected to the actuating device, with an operating state of the electrical device based on an actuation of the actuating element is changeable.

The advantages that have already been mentioned in connection with the explanation of the actuating device according to the invention can also be achieved with the cleaning device. Advantageous embodiments of the cleaning device according to the invention result from advantageous embodiments of the actuating device according to the invention. Reference is made to the above statements.

The cleaning device can in particular be hand-held.

The cleaning device can be designed in different ways. For example, it is a floor cleaning device for wiping a floor surface, a suction device, a hard surface cleaning device, for example for window surfaces, a high-pressure cleaning device or a sweeping device.

The electrical device of the cleaning device can be, for example, an electrical control unit. Alternatively, the electrical device can be a drive motor for a cleaning tool, for example.

The feature "cleaning tool" is to be interpreted broadly in the present case and can be any component of the cleaning device that is used in connection with the cleaning of an object to be cleaned.

The change in the operating status of the electrical device can be, for example, switching on, switching off, increasing or reducing output, Dosing of a cleaning agent, calling up and/or ending a menu of an executable program of the electrical device and/or navigating in a menu of the program.

"Turning on and off" may include turning the cleaning device on and off.

It can be favorable if the electrical unit or the electrical device comprises a memory unit with a program stored therein which can be executed by a data processing unit of the cleaning device or the actuating device, the display unit being able to be controlled by the data processing unit and based on visual information, in particular image information can be displayed on the program depending on the type of cleaning device. In this way, the actuating device proves to be very versatile. An otherwise structurally identical actuating device can be used with cleaning devices of different types, with only the program being different depending on the cleaning device.

Depending on the program, in particular different functions can be performed by cleaning devices of different types, which can each be controlled by the operator using the actuating device.

The program can be stored in the memory unit at the factory, for example.

Alternatively or additionally, it is conceivable that the program can be changed by an operator. For example, an update as part of a firmware update or similar is conceivable.

The cleaning device includes, for example, an electrical connection element for direct or indirect connection of an external auxiliary device via that the program can be transferred to the cleaning device for storage in the memory unit.

Alternatively or additionally, the cleaning device includes a communication element for wireless communication with an external additional device, via which the program can be transmitted to the cleaning device for storage in the memory unit.

The connection element and/or the communication link can be part of the actuating device.

The external additional device can be, for example, a smartphone or a tablet computer, via which the program is provided.

The cleaning appliance preferably comprises an operating device with a grip element for the operator, with the actuating device preferably being arranged on the operating device. In this way, the actuating device can be operated in a manner that is easy to handle.

It is favorable if an actuation area, via which the electrical device can be switched on and/or off, is arranged on a side of the actuation element remote from the stylus element. This reduces the likelihood that an operator will inadvertently switch the electrical device on and/or off.

In particular, if a plurality of actuation areas is present, this named actuation area is the actuation area arranged furthest away from the gripping element.

It can be advantageous if an operating area, can be changed via the menu levels within the program, the grip element is arranged closer than the operating area over which the electrical Device can be switched on and/or off. In particular, the actuation area for changing within the menu levels is the actuation area closest to the grip element.

It can be advantageous if actuation areas, which can be used to navigate within a menu level of the program, are arranged diametrically opposite one another on the actuation element. This allows intuitive operation of the actuating device.

As already mentioned, the present invention also relates to a cleaning system. The object of the invention is to provide a cleaning system with a cleaning device according to the invention.

This object is achieved by a cleaning system according to the invention, comprising a first cleaning device of the first type with a respective memory unit and a program stored therein and a second cleaning device of the second type with a respective memory unit and a program stored therein, the first type being different from the second type, the Actuating devices of the cleaning devices are designed structurally identical, and the programs stored in the memory units are different from each other and depend on the type of cleaning device.

The cleaning system according to the invention has a high level of versatility. Structurally identical actuating devices are preferably used for cleaning devices of different types. The control of the respective cleaning device is based on the program. The further advantages of the invention, which have already been mentioned in connection with the explanation of the cleaning device according to the invention and the actuating device according to the invention, can also be achieved with the cleaning system according to the invention. Its advantageous embodiments result from advantageous embodiments of the cleaning device according to the invention and/or the actuating device according to the invention. Reference is made to the above statements. The following description of preferred embodiments of the invention, in conjunction with the drawing, serves to explain the invention in more detail. Show it:

FIG. 1 shows a schematic representation of a cleaning system according to the invention, comprising a plurality of cleaning devices according to the invention with a respective actuating device according to the invention;

FIG. 2: an enlarged representation of detail A in FIG. 1;

FIG. 3: a perspective representation of a preferred embodiment of the actuating device according to the invention;

FIG. 4: an exploded representation of the actuating device from FIG. 3 in a perspective view;

FIG. 4A: a perspective representation of a layer with which a housing part of the actuating device is printed;

FIG. 5: a partial illustration of the actuating device from FIG. 3 in a perspective view;

Figure 6 is a plan view of the actuator with some components of the actuator hidden;

Figure 7 is a sectional view taken along line 7-7 of Figure 6 showing the components omitted therein;

FIG. 8: an illustration corresponding to FIG. 7, with the actuating device being actuated in the direction of the arrow; FIG. 9: an enlarged representation of detail B in FIG. 7;

FIG. 10: an enlarged representation of detail C in FIG. 8;

Figure 11 is a sectional view taken along line 11-11 of Figure 6 showing the components omitted therein;

FIG. 12: an illustration corresponding to FIG. 11, with the actuating device being actuated in the direction of the arrow;

FIG. 13: an enlarged representation of detail D in FIG. 11;

FIG. 14: an enlarged representation of detail E in FIG. 12;

FIG. 15: a schematic view of an image display of the actuating device to clarify menu navigation using the actuating device;

FIG. 16: a perspective representation of a cleaning device according to the invention, comprising an actuating device according to the invention;

FIG. 17: an enlarged representation of the actuating device in a perspective view;

FIG. 18: a perspective partial illustration of the actuating device in an exploded view;

FIG. 19: a plan view of the actuating device with some components hidden;

Figure 20 is a sectional view taken along line 20-20 of Figure 19 with components hidden; FIG. 21: an illustration corresponding to FIG. 20, with the actuating device being actuated in the direction of the arrow;

Figure 22 is a sectional view taken along line 22-22 of Figure 19;

FIG. 23: an illustration corresponding to FIG. 22, with the actuating device being actuated in the direction of the arrow;

FIG. 24: an exploded view of a further preferred embodiment of the actuating device according to the invention;

FIG. 25: a sectional view of the actuating device from FIG. 24 in a non-actuated state;

FIG. 26: an illustration corresponding to FIG. 25, with the actuating device being actuated in the direction of the arrow;

FIG. 27: a perspective representation of electrical connection elements and an electrical line of an actuating device according to the invention;

FIG. 28: a partial representation of the connection elements from FIG. 7, 'and

FIG. 29: a sectional illustration of a connecting element with contact members held therein.

FIG. 1 shows a schematic representation of a preferred embodiment of a cleaning system according to the invention, designated overall by reference numeral 10 .

The cleaning system 10 comprises various cleaning devices according to the invention of different types, each in a preferred embodiment. A cleaning device 12 is designed as a floor cleaning device for wiping a floor surface. For this purpose, the cleaning device 12 includes cleaning tools 13, in the present case in the form of wiping rollers. A preferably rechargeable electric battery 14 is provided for the energy supply.

The cleaning device 12 comprises an electrical device 15 which (FIG. 2) comprises in particular a data processing unit 16 and a memory unit 17 .

A handle element 18 is provided on an operating device for handling by the user, and an actuating device 20 is also provided for actuating the electrical device 15. The actuating device 20 is a preferred embodiment of the actuating device according to the invention.

The cleaning system 10 also includes a cleaning device 22 according to the invention in a preferred embodiment, designed as a hand-held suction device.

Furthermore, the cleaning system 10 comprises a cleaning device 23 according to the invention in a preferred embodiment, designed as a hard surface cleaning device.

In addition, the cleaning system 10 includes a cleaning device 24 according to the invention in a preferred embodiment, configured as a portable high-pressure cleaning device.

The cleaning devices 22, 23 and 24 also each include at least one cleaning tool 13 - designed as a floor nozzle, suction device or high-pressure nozzle, a battery 14, an electrical device 15 (also comprising the data processing unit 16 and the memory unit 17) and a handle element 18.

In addition, the cleaning devices 22, 23 and 24 also include the actuating device 20, the structure and mode of operation of which is described below.

As can be seen in particular from FIGS. 3 to 14, the basic shape of the actuating device 20 is essentially puck-shaped in the form of a disc with a small to moderate height in relation to the diameter, to which the invention is not limited to this shape.

The actuator 20 includes a housing 26 defining an axis 27 .

The housing 26 comprises a housing bottom part 28, a housing side wall part 29 and an upper housing part 30. The housing bottom part 28 and the housing side wall part 29 are also housing parts.

In the present case, the lower housing part 28 is essentially trough-shaped and accommodates at least one electrical connection element 31 of an electrical unit 32 of the actuating device 20 . The at least one connection element 31 is preferably arranged on a housing base 33 of the lower housing part 28 . Depending on the respective actuating device and/or the cleaning device, more than one electrical connection element can be provided.

The connection element 31 is connected to the electrical device 15 via a multi-pole electrical line 34 . Electrical energy can be supplied to the battery 14 via the line 34 . Actuating pulses can be transmitted to the electrical device 15 via the line 34 . The line 34 may or may not be part of the actuating device 20 . Alternatively or additionally, a wireless coupling of the actuating device 20 to the electrical device 15 can be provided. The actuator 20 may include a self-contained battery (not shown).

In the present case, the electrical unit 32 comprises an electrical printed circuit board 35 lying on the lower housing part 28 and to which the connection element 31 is connected.

The circuit board 35 also accommodates at least one switching element 36 . In the present case, a total of four switching elements 36 are provided. The switching elements 36 are evenly spaced apart from one another in the circumferential direction of the axis 27, in each case essentially by 90°.

A respective switching element 36 is, for example, a microswitch with a defined switching point and preferably with haptic and/or acoustic feedback.

Alternatively, for example, a silicone switching mat with at least one switching pill can be provided.

The electrical unit 32 also includes at least one cable for the electrical connection to a display unit 37. In the present case, a connection via a ribbon cable or flex cable 38 is provided. Any difference in the distance between the display unit 37 and the printed circuit board 35 can be compensated for via the ribbon cable 38, in particular as a result of a movement of the display unit 37.

The display unit can be designed to be touch-sensitive and can include a touch screen, for example. Display unit 37 can be controlled by electrical unit 32, in particular initiated by electrical device 15.

The display unit 37 includes an image display 39, in particular for the colored display of visual information in the form of color images. The image display 39 has a light emitting portion 40 .

The display unit 37 is essentially planar and defines a plane transverse and in particular perpendicular to the axis 27.

As can be seen, for example, in particular from FIGS. 4 and 7 to 14, the housing side wall part 29 has a side wall 41 extending along the circumferential direction of the actuating device 20 . The side wall 41 overlaps an edge 42 of the lower housing part 30 and is sealed relative thereto by a sealing element 43 .

A further sealing element 44 is arranged on an outer circumference of the side wall 41 . The sealing element 44 seals relative to a wall 45 of the cleaning device 12, 22, 23 or 24, an opening 46 for receiving the actuating device 20 being formed in the wall 45. This is shown in FIG. 2 using the cleaning device 12 as an example.

The housing side wall part 29 forms a holding part 47 for at least one actuating member 48. In the present case, four actuating members 48 are provided, each of which is assigned to one of the switching elements 36.

A respective actuating member 48 is held on a segment 49 of the holding part 47 which projects radially with respect to the axis 27 . In this case, the actuating element 48 is formed in particular via a film hinge 50 .

The actuating member 48 has a free end 51 facing away from the film hinge 50 . The free end 51 contacts the switching element 36 at the top. Pressing the actuating element 48 causes the film hinge 50 to pivot and the switching element 36 to be actuated.

In order to absorb an actuating force, the actuating element 48 comprises an actuating section, in the present case configured as a projection 52. The projection 52 protrudes upwards from the actuating element 48 in the direction of the upper housing part 30.

The actuating member 48 forms a lever member 53. The distance between the projection 52 and the film hinge 50 is less than the distance between the free end 51 and the film hinge 50. The lever member 53 accordingly increases the displacement and reduces the force.

In practice, the use of the lever member 53 proves to be advantageous for the perception of a clicking noise of the switching element 36.

The actuating members 48 are arranged equidistantly from one another in the circumferential direction of the axis 27 and have an angular spacing of essentially 90° in each case. In terms of construction, the actuating members 48 are the same as the switching elements 36.

The holding part 47 forms a frame 54. The display unit 37 is at least partially accommodated in the frame 54, although it does not make contact with the holding part 47.

A through-opening 55 for passing the ribbon cable 38 through is formed in the holding part 47 radially on the inside.

In the present case, the upper housing part 30 is designed in the form of a disk and is advantageously formed in one piece (monolithic). The housing part 30 is preferably made entirely of an optically transparent material which preferably allows light of the entire or essentially the entire optical spectrum to pass through. The housing part 30 forms an upper housing wall 56.

The housing part 30 comprises a cover element 57 which is arranged radially on the inside and which covers the display unit 37 at the top. The cover element 57 is surrounded by an actuating element 58 of the housing part 30 . The actuating element 58 is ring-shaped. The actuating element 58 and the cover element are connected to one another, in particular in one piece.

Transversely and in particular perpendicularly to the axis 27, the upper housing part 30 extends over the entire housing 26, defining a plane.

When the actuating device 20 is used as intended, the housing part 30 faces the operator and accordingly extends over the entire upper side of the housing 26.

A layer 59 is arranged on the housing part 30 on the side facing away from the operator. The layer 59 is applied by printing the housing part 30 from the underside. Here, in particular, the actuating element 58 is printed annularly along the entire circumference on a light-absorbing region 60 which absorbs at least part of the visible spectrum. This allows inking on the actuator 58 from the underside (Figures 4, 4A).

At the same time, an identification 61 on the actuating element 58 is ensured via the light-absorbing area 60 . For this purpose, in particular, pictograms are printed on the actuating element 58, which will be discussed below.

The layer 59 is printed in such a way that an uncoated transparency area 62 remains radially on the inside. The transparency area 62 enables a view through the covering element 57 onto the display unit 37 . In the present example, the transparency area 62 is smaller than the light-emitting section 40. In particular, an outer contour 63 of the transparency area 62 lies completely within the outer contour 64 of the light-emitting area (FIG. 4).

The display unit 37 is connected to the housing part 30, in particular to the cover element 57. In the present case, the connection is made by gluing. Figures 7 to 10 show the corresponding adhesive layer 66, for example by OCA bonding.

The bonding is carried out in such a way that the plane of the display unit 37 is aligned parallel to the plane of the housing part 30 .

In particular, an optical coupling of the display unit 37 to the cover element 57 takes place via the adhesive bond. Light reflections between the cover element 57 and the display unit 37 can thereby be avoided.

The housing part 30 rests against housing side wall parts 29 via a damping element 67 . The damping element 67 is made of an elastically deformable material, in this case for example an EPDM foam material. Reference is made to the statements above in this regard.

In the present case, the damping element 67 is ring-shaped and extends along the entire outer circumference of the housing 26.

Here, the actuating element 58 rests along the outer circumference on the damping element 67 which in turn rests on an upper section 69 of the housing side wall part 29 .

Adhesive bonding of the damping element 67 to the housing side wall part 29 and to the layer 59 on the actuating element 58 is preferably provided. The damping element 67 can be elastically deformed by pressure on the actuating element 58 . Conversely, reshaping can take place in order to move the actuating element 58 back into an initial position. For this reason, the damping element 67 also forms a restoring element.

In the present case, the damping element 67 seals between the housing part 30 (including the layer 59) and the housing side wall part 29.

The actuating element 58 has at least one actuating area 70 . Four actuation areas 70 are provided here. An actuating member 48 and a switching element 36 are assigned to each actuating region 70 .

The four actuating regions 70 are arranged equidistantly from one another in the circumferential direction of the axis 27 and have an angular spacing of essentially 90° in each case. With respect to the axis 27, two diametrically opposite actuation areas 70 are provided.

In a top view, the actuating device 20 has a ring-shaped actuating element 58 and a display unit 37 lying inside in relation to this, below the cover element 57 .

Each actuation area 70 is operatively connected to the switching element 36 assigned to it.

In a basic position (Figures 7, 9, 11 and 13), the respective switching element 36 is not actuated. By pressing on the actuating area 70 in an arrow direction 71 (Figures 8, 10, 12 and 14), the actuating area 70 acts on the actuating element 48 on the respective projection 52. The actuating element 48 pivots on the film hinge 50 until the free end 51 actuates the switching element 36. The electrical unit 32 can provide information about forward the actuation to the electrical device 15 of the cleaning device 12, 22, 23 or 24.

When the switching element 36 is actuated, the actuating element 58 assumes an actuating position. Accordingly, four different operating positions are provided in the present case.

The damping element 67 is used to form a defined compressive force and to generate haptic feedback for the operator.

By actuating, the actuating element 58 is tilted on the housing 26 (FIGS. 8, 10, 12, 14). The actuating device 20 is dimensioned in such a way that a relatively small tilting path of approximately 0.3 mm to 2.5 mm, preferably approximately 0.5 mm to 2 mm, is set.

During the movement of the actuating element 58 is over the cover

57 also moves the display unit 37. Specifically, the display unit 37 is moved in the same direction as the cover member 57 and in synchronism with it. The optical coupling, in particular through the connection via the adhesive layer 66, is retained. Visual information on the display unit 37 can be independent of the tilted position of the actuating element

58 can be easily and reliably perceived by the operator.

In the cleaning devices 12, 22, 23 and 24 in the present example of the cleaning system 10, a structurally identical actuating device 20 is used in each case. Only a program stored in the memory unit 17 is different. The program is used to control the respective cleaning device 12, 22, 23 or 24, and its functions can be addressed. Furthermore, the visual information on the display unit 37 will vary depending on the program provided for the respective type of cleaning device 12, 22, 23 or 24.

The program can, for example, be transmitted wirelessly from an external additional device 72 to the electrical device 15, which includes a communication element 73 for this purpose (FIG. 2). Alternatively or additionally, a cable connection to an external additional device 72 can be set up, for example via an electrical connection element 74 of the cleaning device 12 .

The additional device 72 is a smartphone or a tablet computer, for example.

It goes without saying that the above statements can apply to the cleaning devices 22, 23 and 24 in a corresponding manner.

To explain the function of the actuating device 20, the actuating areas 70 are also referred to below as actuating areas 70a to 70d. A respective operating area 70a to 70d is identified by a pictogram 75a to 75d which is printed over the light-absorbing area 60. FIG. This allows the operator to intuitively understand the function when operated on the operating portions 70a to 70d.

The electrical device 15 and thus the cleaning device 12 can be switched on and off at the actuation area 70a.

The actuation area 70a is located diametrically opposite the actuation area 70b. The actuation areas 70c and 70d are diametrically opposite one another and are each arranged between the actuation areas 70a and 70d on the actuation element 58 .

Figure 15 shows a schematic representation of menu navigation in the program of memory unit 17 by means of actuating device 20.

Starting from a top level 76, in which the actuating device 20 is switched off, the user can switch on the device 15 by actuating the actuating area 70a and arrives at a main menu level 77 of the program. Subsequent to an optional greeting 79, the user can select submenus 80 within the main menu level 77 by actuating the actuating areas 70c and 70d. Entry into a respective menu level 81 of the selected submenu takes place by actuating the actuating area 70b.

The operator can navigate within each menu level 81 by actuating the actuating areas 70c and 70d. A respective option 82 in a submenu 80 can be confirmed after selection by actuating the actuating area 70b, whereupon the main menu level 77 is called up again.

It is understood that this representation is exemplary. The number of menu levels, sub-menus and/or options may vary. Further submenus can be provided.

The device 15 can, for example, be switched off at any time by actuating the actuating area 70a.

In the present case, it is advantageous that the actuation area 70a is the actuation area 70 furthest away from the grip element 18 . Unintentional switching on or off can thus be largely avoided. With regard to access to the menus, it is advantageous if the actuation area 70b is arranged closer to the grip element 18 than the actuation area 70a and/or the actuation area 70 is arranged closest to the grip element 18 .

FIG. 16 shows a preferred embodiment of a cleaning device 84 according to the invention designed as a high-pressure cleaning device. The cleaning device 84 comprises a cleaning tool 13 in the form of a spray lance, optionally a battery 14, the electrical device 15 and a high-pressure gun 85 with the grip element 18.

Also arranged on the high-pressure gun 85 is an advantageous embodiment of the actuating device according to the invention, denoted by the reference number 86 .

Identical reference symbols are used for the same or equivalent features and components of the actuating devices 20 and 86 . The advantages explained in connection with the actuating device 20 can also be achieved with the actuating device 86, so that reference is made to the above explanations in this regard. Only the essential differences are described.

The actuating device 86 comprises a receiving part 87 for the housing 26, which can be designed in several parts and in the present case comprises a lower section 88 and an upper section 89, for example. In the upper section 89 there is an opening 90 in which the actuating device 86 is inserted.

The receiving part 87 also has a battery compartment 91 in which batteries 92 for supplying energy to the actuating device 86 are accommodated and which is closed by a cover element. For example, there is a cable connection, not shown in the drawing, to the electrical unit 32. The actuating device 86 can be electrically connected wirelessly to the electrical device 15 via a communication link 93 .

In the case of the actuating device 86, the housing 26 comprises housing parts in the form of a lower housing side wall part 94 and an upper housing side wall part 95. Furthermore, the upper housing part 30 is provided with the actuating element 58 and the cover element 57.

In the present example, the housing base 33 is formed by the printed circuit board 35 which is connected to the housing side wall part 94, for example by screwing.

The housing side wall parts 94, 95 are connected to each other. In this case, the lower housing side wall part 94 is snapped onto the upper housing side wall part 95, for example, which comprises snap-in projections 96 for this purpose. The housing side wall parts 94, 95 each comprise a section of the side wall 41 of the housing 26.

In the case of the actuating device 86, the housing part 30 has a multi-part design. In particular, an actuating element 58 separate from the cover element 57 is provided.

The cover element 57 is in positive and non-positive engagement with the actuating element 58 .

In particular, the actuating element 58 can be manufactured by injection molding on the cover element 57 . In the case of the actuating device 86, the actuating element 58 is preferably formed from an elastically deformable film-like material. For example, a TPE material (thermoplastic elastomer) proves to be advantageous. This gives the possibility, for example, that the actuating element 58 forms the damping element 67 via a section 99 .

The actuating element 58 surrounds the cover element 57 in a ring shape and extends over an outer edge 100 of the actuating device 86 in the direction away from the operator. A peripheral portion 101 surrounds and can engage with the housing side wall portion 94 at the top (Figures 20 to 23) along the entire outer periphery.

Due to the elasticity on the section 101, a seal can preferably be made in the opening 90 by means of the actuating element 58, so that no separate sealing element is required.

The section 99 is arranged at the top on the edge of the actuating element 58 and is designed in the form of a membrane. When pressure is applied in the direction of the arrow 71 (FIG. 21), the section 99 is stretched, so that the actuating element 58 acts as a damping element 67.

As in the case of the actuating device 20, the actuating element 58 acts via the projection 52 on the actuating member 48, which in turn acts on the switching element 36.

When the section 99 is deformed back, the actuating element 58 is transferred back from the actuating position back into the basic position.

A total of four actuation areas 70a to 70d are also provided for the actuation device 86 (FIG. 18). In contrast to the actuating device 20, the labeling is carried out by the film used for production itself, and the printed layer 59 is omitted. The pictograms 75a to 75d can also be formed on the film itself.

The film can itself be colored, whereas the cover element 57 is made of an optically transparent material, as is the case with the actuating device 20 .

FIGS. 24 to 26 show an advantageous embodiment of the actuating device according to the invention, denoted overall by reference numeral 102 .

Identical reference symbols are used for features and components of the actuating devices 102 and 20 which are the same or have the same effect. The advantages explained in connection with the actuating devices 20, 86 can also be achieved with the actuating device 102, so that reference is made to the above statements in this regard. Only the essential differences are described.

An annular damping element 67 is also provided in the actuating device 102 . The damping element 67 seals between the housing part 30 (including the layer 59) and the housing side wall part 29 as with the actuating device 20. The damping element 67 is preferably bonded to the layer 59. The bonding takes place, for example, along the entire circumference of an upper section 103 that lies flat against layer 59.

The damping element 67 comprises a lower section 104 which is designed like a bellows. The lower section 104 is connected to the upper section 103 along the entire circumference, preferably in one piece. In particular, the damping element 67 can be designed in one piece overall. The lower portion 104 has a support portion 105 that flares radially outward. The support section 105 is followed by a sealing section 106 which forms a sealing element 107 at the free end of the damping element 67 . The sealing element 44 is omitted.

The damping element 67 has two functions in the actuating device 102 . On the one hand, damping is provided when the actuating element 58 is actuated, as is the associated restoring force for the actuating element 58. On the other hand, the housing 26 is sealed between the housing part 30 (including the layer 59) and the side wall 41.

FIG. 25 shows the actuating device 102 in an unactuated state. With an actuation in the direction of arrow 71 according to FIG. 26, the damping element 67 is deformed. The support section 105 comes into contact with the upper section 69. This makes it possible to clearly define the actuation path for the actuation element 58 and to generate particularly good haptic feedback for the user.

In the case of the actuating device 102 as well, the display unit 37 is connected to the housing part 30 in particular by gluing and is moved when the actuating element 58 is actuated.

Electrical connection elements that can preferably be used in an actuating device according to the invention will be discussed below with reference to FIGS. The connection elements include the connection element 31 already mentioned above and a further connection element 109 to which the line 34 designed as a ribbon cable is connected. The connecting element 31 comprises a housing 110, which is arranged in a through-opening 111 in the housing base 33 in the case of the actuating devices 20 and 102, and between the printed circuit board 35 and the lower section 88 of the receiving part 87 in the case of the actuating device 86.

In the housing 110 contact members 112 are held. The contact members 112 are arranged immovably in the through-openings 113 of the housing 110 and are supported by means of support elements 114 (these protrude out of the plane of the drawing in FIG. 29 or behind it) in such a way that movement in the through-opening 113 is prevented.

The contact members 112 are held in the printed circuit board 35 by sections 115 protruding from the housing 110 . Sections 116 emerge from the housing 110 on the opposite side.

In the present example, the sections 116 are clamping cutting contacts, into which the individual wires of the line 34 engage in a contacting manner.

The connection element 109 is used to fix the line 34 and can be detachably connected to the housing 110, for example by latching.

Reference list:

10 cleaning system

12 cleaning device

13 cleaning tool

14 battery

15 electrical device

16 data processing unit

17 storage unit

18 grip element

20 actuator

22, 23, 24 cleaning device

26 housing

27 axis

28 lower housing part

29 housing side wall part

30 upper housing part

31 connection element

32 electrical unit

33 case back

34 line

35 circuit board

36 switching element

37 display unit

38 ribbon cable

39 picture display

40 light emitting section

41 side wall

42 fringe

43, 44 sealing element

45 wall

46 opening

47 holding part actuator

segment

Film hinge free end

head Start

lever link

Frame

Through hole in the upper housing wall

cover element

actuator

Layer light absorbing area

Labelling

Transparency Area , 64 Outline

adhesive layer

damping element

ring upper section

operating range

arrow direction

auxiliary device

communication link

connection element

pictogram

level

main menu level

greeting

submenu

menu level

option

cleaning device High-pressure gun Actuating device Receiving part Lower section Upper section Opening Battery compartment Battery Communication member , 95 Housing side wall part Latching projection Projection Groove Section 0 Outer edge 1 Section 2 Actuating device 3 Section 4 Section 5 Supporting section 6 Sealing section 7 Sealing element 9 Connection element 0 Housing 1 Through-opening 2 Contact element 3 Through-opening 5 Section 6 Section

Claims

PATENT CLAIMS Actuating device for a cleaning device, comprising a housing (26) with a housing part (30) facing an operator, an electrical unit (32) with at least one switching element (36) arranged in the housing (26), a controllable unit arranged in the housing (26). Display unit (37), wherein the housing part (30) comprises an actuating element (58) which comprises or forms at least one actuating region (70) which is operatively connected to the at least one switching element (30), the actuating element (58) when actuated is transferred from a basic position into at least one operating position, and a transparent cover element (57) covering the display unit (37), which is connected to the operating element (58) and is moved by operating the operating element (58), the display unit (37) with is in operative connection with the housing part (30) and is moved when the actuating element (58) is actuated. Actuating device according to Claim 1, characterized in that at least one of the following applies: the housing part (30) can be tilted on the housing (26) for transfer from the basic position into the at least one operating position; the display unit (37) is operatively connected to the housing part (30) in such a way that the display unit (37) is moved in the same direction as the cover element (57) and/or is moved synchronously with the cover element (57). Actuating device according to Claim 1 or 2, characterized in that the cover element (57) is connected or formed in one piece with the actuating element (58) and/or in that the housing part (30) is formed in one piece. Actuating device according to one of the preceding claims, characterized in that the actuating element (58) surrounds the cover element (57) in particular in a ring shape and/or that the housing part (30) extends over an entire side of the housing (26) facing the operator. Actuating device according to one of the preceding claims, characterized in that the display unit (37) is connected to the housing part (30), preferably to the cover element (37), in particular by gluing. Actuating device according to one of the preceding claims, characterized in that on the side of the housing part (30) facing away from the operator there is a layer (59) or coating which in the area of the cover element (57) has a transparency area (62) for the display unit ( 37) cuts out emitted light and preferably comprises a light-absorbing area (60) on the actuating element (58), wherein the housing part (30) on the actuating element (58) is preferably designed to be transparent. Actuating device according to Claim 6, characterized in that the transparency area (62) is smaller than a light-emitting section (40) of the display unit (37), in particular an image display (39) of the display unit (37), a contour (63) of the transparency area ( 62) lies completely within a contour (64) of the light-emitting section (40) in a plan view of the housing part (30). Actuating device according to one of the preceding claims, characterized in that the housing part (30) comprises an actuating element (58) formed separately from the cover element (57), the actuating element (58) engaging the cover element (57) in a non-positive and/or positive manner stands, wherein the actuating element (58) preferably surrounds the cover element (57) in a ring shape. Actuating device according to Claim 8, characterized in that the actuating element (58) extends beyond an outer edge (100) of the actuating device (86), the actuating element (58) at least partially surrounding a housing side wall part (94) of the housing (26). Actuating device according to one of the preceding claims, characterized in that the electrical unit (32) comprises two or more switching elements (36) and in that the actuating element (58) comprises or forms two or more actuating regions (70), through the actuation of which the actuating element (58 ) is transferred into a respective operating position, with a respective operating area (70) being assigned a switching element (36). Actuating device according to one of the preceding claims, characterized in that the display unit (37) is electrically connected to a printed circuit board (35) of the electrical unit (32) via a cable connection, in particular via a ribbon cable (38). Actuating device according to one of the preceding claims, characterized in that the actuating device (20; 86) comprises a preferably elastically deformable damping element (67), against the effect of which the actuating element (58) can be transferred from the basic position into the at least one actuating position, preferably that the Damping element (67) forms a restoring element for the actuating element. Actuating device according to Claim 12, characterized in that the damping element (67) is a section (99) of the actuating element (58) which is stretched by its actuation, the actuating element (58) being foil-shaped or membrane-shaped at least on the damping element (67). Actuating device according to Claim 12, characterized in that the damping element (67) is formed separately from the actuating element (58) and is positioned between the housing part (30) and a further housing part (29), the actuating element (58) being positioned via the damping element ( 67) on the further housing part (29), preferably that the damping element (67) consists of a foam material or comprises a foam material. Actuating device according to Claim 14, characterized in that the damping element (67) is ring-shaped and preferably runs along the entire outer circumference of the housing (26). Actuating device according to one of the preceding claims, characterized in that the actuating device (20; 86) comprises at least one actuating member (48) which is movably held on a holding part (47) and via which the actuating element (58) is connected to the at least one switching element (36) in is operatively connected and that the at least one switching element (36) is actuated when the actuating element (58) is transferred into the at least one actuating position, the at least one actuating element (48) preferably being integrally formed on the holding part (47), in particular via a film hinge (50). Actuating device according to Claim 16, characterized in that the at least one actuating member (48) is a lever member (53) and that the at least one switching element (36) is arranged laterally offset relative to the actuating area (70), based on a top view of the actuating device (20; 86), and/or that the lever member (53) is preferably travel-enlarging. Actuating device according to one of the preceding claims, characterized in that the housing (26) comprises a housing base (28) with a housing base (33), the electrical unit (32) resting on the housing base (28) and on the underside of the housing base (33) is covered. Actuating device according to one of Claims 1 to 17, characterized in that a printed circuit board (35) of the electrical unit (32) forms a housing base (33), the printed circuit board (35) having a housing part (95), in particular a housing side wall part (95) , connected is. Actuating device according to one of the preceding claims, characterized in that the electrical unit (32) comprises an electrical connection element (31) for connecting an electrical line (34), preferably on an underside of the housing (26), and / or that the electrical unit (32) comprises a communication element (93) for wireless communication with an external electrical device (15). Actuating device according to one of the preceding claims, characterized in that the actuating device (20; 86) is puck-shaped or that the housing (26) is puck-shaped. Actuating device according to one of the preceding claims, characterized in that the actuating device (86) comprises a receiving part (87) for the housing (26), the receiving part (87) has an opening (90) into which the housing (26) is inserted, preferably that the receiving part (87) has a battery compartment (91) for receiving at least one battery (92) which is arranged externally to the housing (26). and is in electrical communication with the electrical unit (32). Cleaning device with at least one cleaning tool (13), wherein the cleaning device (12, 22, 23, 24; 84) comprises at least one actuating device (20; 86) according to one of the preceding claims and an electrical device (15) which is connected to the actuating device ( 20; 86) is electrically connected, an operating state of the electrical device (15) being changeable based on an actuation of the actuating element (58). Cleaning device according to Claim 23, characterized in that the electrical unit or the electrical device comprises a memory unit (17) with a program stored therein which is read by a data processing unit (16) of the cleaning device (12, 22, 23, 24; 84) or the actuating device (20; 86), the display unit (37) being controllable by the data processing unit (16) and visual information, in particular image information, based on the program depending on the type of cleaning appliance (12, 22, 23, 24; 84) are representable. Cleaning device according to Claim 24, characterized in that the cleaning device (12, 22, 23, 24; 84) comprises an electrical connection element (74) for the direct or indirect connection of an external additional device (72) via which the program for storage in the memory unit (17) can be transmitted to the cleaning device (12, 22, 23, 24; 84) and/or the cleaning device (12, 22, 23, 24; 84) has a communication element (73) for wireless communication with an external additional device (72) includes, via which the program for storage in the Storage unit (17) can be transferred to the cleaning device (12, 22, 23, 24; 84). Cleaning device according to one of Claims 23 to 25, characterized in that the cleaning device (12, 22, 23, 24; 84) comprises an operating device with a grip element (18) for the operator and that the actuating device (20; 86) is preferably on the Operating device is arranged. Cleaning device according to Claim 26, characterized in that an actuating area (70a), via which the electrical device (15) can be switched on and/or off, is arranged on a side of the actuating element (58) remote from the stylus element (18), in particular that this actuation area (70a), if a plurality of actuation areas (70) are present, is the actuation area (70a) arranged furthest away from the gripping element. Cleaning device according to Claim 26 or 27, characterized in that an actuating area (70b), via which the menu levels (77, 81) can be changed within the program, is arranged closer to the grip element (18) than the actuating area (70a), via which the electrical device (15) can be switched on and/or off, and in particular the actuating area (70b) closest to the gripping element (18). Cleaning appliance according to one of Claims 26 to 28, characterized in that actuating areas (70c, 70d) which can be used to navigate within a menu level (77, 81) of the program are arranged diametrically opposite one another on the actuating element (58). A cleaning system comprising a first cleaning device (12, 22, 23, 24; 84) of the first type according to any one of claims 24 to 29 and a second Cleaning device (12, 22, 23, 24; 84) of the second type according to one of Claims 24 to 29, the first type being different from the second type, the actuating devices (20; 86) of the cleaning devices (12, 22, 23, 24 ; 84) are designed to be structurally identical, and the programs stored in the memory units (17) differ from one another and depend on the type of cleaning device (12, 22, 23, 24; 84).