EP3592193A1

EP3592193A1 - Self-propelled and self-steering floor cleaning device

Info

Publication number: EP3592193A1
Application number: EP17764404.4A
Authority: EP
Inventors: Norman KOHLER; Justin Henry; Janine ENGEL; Karl Engelbert Wenzel; Alexander BRÄNDLE; Ralph Diehl; Michael Schechterle; Juliane AUTH
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2017-03-08
Filing date: 2017-09-08
Publication date: 2020-01-15
Anticipated expiration: 2037-09-08
Also published as: EP3841941B1; WO2018162091A1; CN114515125A; WO2018162092A1; DE112017007192A5; CN110352029B; EP3592193B1; CN110352029A; CN114515125B; EP3841941A1; PL3592193T3

Abstract

The invention relates to a self-propelled and self-steering floor cleaning device. The floor cleaning device (10) comprises a drive unit (16) for moving on a floor surface (12) which is to be cleaned, a cleaning unit (36) comprising a cleaning roller (46) for wet cleaning the floor surface (12), and a brush roller (38) for brushing the floor surface (12), a cleaning liquid container (56) for a cleaning liquid and at least one dirt reservoir (60; 122, 124) for dirt collected from the floor surface (12), wherein the floor surface (12) can be cleaned in the same step with the brush roller (38) and the cleaning roller (46).

Description

SELF-LEADING AND SELF-STEERING

FLOOR CLEANING EQUIPMENT

The invention relates to a self-propelled and self-steering floor cleaning device with a drive unit for moving on a floor surface, a wiping roller for the wet cleaning of the bottom surface, a Reinigungsflüs- sigkeitsbehälter and a dirt container for recorded dirt.

Object of the present invention is to provide such a floor cleaning device, with a better cleaning of the floor space is possible.

This object is achieved by a self-propelled and self-steering floor cleaning device comprising a drive unit for moving on a floor surface to be cleaned, a cleaning unit having a wiping roller for wet cleaning of the bottom surface and a sweeping roller for sweeping the bottom surface, a cleaning liquid container for a cleaning liquid and at least one dirt container for recorded from the bottom surface dirt, wherein the bottom surface is cleaned in the same operation with the sweeping roller and the wiping roller.

An improved cleaning of the bottom surface can be achieved by cleaning the bottom surface both with the sweeping roller and with the wiping roller. For example, loose dirt and coarser dirt particles can be swept by means of the sweeping roller in the at least one dirt container. By moistening the bottom surface and / or the wiping roller additional dirt can be removed under the cleaning action of the wiping roller and transferred to the at least one dirt container.

The sweeping roller may have a trimming of cleaning bristles for cleaning the bottom surface. Alternatively, the broom can be a stocking of a Textile material, from a sponge-like or cloth-like material, with which also a sweeping effect can be achieved.

The wiping roller may have a sponge-like or cloth-like trim for cleaning the bottom surface. For example, a trim of a textile material is provided, for. B. of microfiber textile material.

About the sweeping roller and the wiper roller, the floor cleaning device can be supported on the floor surface. In a corresponding manner, the floor cleaning device can be supported on the floor surface via at least one drive element of the drive unit and / or, if present, via at least one roller. The wiping roller, the sweeping roller, the at least one drive element and / or the at least one roller can be considered as a support device for supporting the floor cleaning device.

In an advantageous embodiment, it is provided that the drive unit has two drive elements spaced apart from each other transversely to a longitudinal or main movement direction of the floor cleaning appliance. A control unit is provided to control the movement of the drive elements. The drive elements are for example drive wheels.

In an advantageous embodiment, the floor cleaning device is free of a roll for supporting on the floor surface. Steering movements of the floor cleaning device can be carried out in particular by means of two differently driven drive elements.

It is advantageous if, based on a main direction of movement of the floor cleaning device, the sweeping roller is arranged in front of the wiping roller. In this way, initially loose dirt is swept up by means of the sweeping roller. Subsequently, a wet cleaning of the bottom surface by means of the wiping roller. Any traces left by the sweeping roller on the floor surface. be removed. The cleaning result is thereby improved.

The aforesaid advantageous embodiment can be defined in another way by selecting or defining a main moving direction of the floor cleaning apparatus such that the sweeping roller of the wiping roller is upstream in the main moving direction. In the method of the floor cleaning device on the bottom surface portions thereof are first detected by the cleaning elements of the sweeping roller, then cleaning elements of the wiping roller.

It is advantageous if, with respect to a main direction of movement of the floor cleaning device, drive elements (for example drive wheels) or at least one roller are arranged in front of the wiping roller. In particular, it is favorable if, with respect to the main direction of movement, no drive element and no roller is arranged behind the wiping roller. Any traces on the bottom surface left by the drive element or the roller can be removed with their wet cleaning with the wiping roller. Conversely, no drive element and no roller leaves a trace in the area of the floor surface cleaned by the wiping roller.

In an advantageous embodiment of the floor cleaning device, it is favorable if the at least one dirt container is arranged between the sweeping roller and the wiping roller and if dirt can be conveyed from the sweeping roller and the wiping roller into the at least one dirt container via different dirt entry openings. For example, the sweeping roller is arranged leader in the main direction of movement and the wiping roller behind the sweeping roller. In between, the at least one dirt container can be arranged. At the sweeping roller and the wiping roller facing sides, a respective dirt entry opening may be arranged. It is advantageous if the wiping roller is dimensioned so that the area of the bottom surface detected by it is wider than the distance of drive elements and / or rollers in an extension direction of the wiping roller. In the present case, this can be understood in particular to mean that areas of the floor surface that are run over by the drive elements or rollers can be picked up and cleaned by the wiping roller in order to remove any traces of the floor surface.

Conveniently, a dirt container is provided which comprises on each side facing away from the wiping roller and the sweeping roller each have a dirt inlet opening. The floor cleaning device may have a common dirt container for swept up with the sweeping roller and wiped in the wiping roller dirt. This simplifies the structural design of the floor cleaning device and simplifies its handling. A common dirt container can be emptied by an operator in a simpler way.

In an advantageous embodiment of the floor cleaning device, it is advantageous if the sweeping roller and the wiping roller are arranged one behind the other and two dirt containers are provided, wherein one of the wiping roller associated dirt container is positioned on the sweeping roller side facing away from the wiping roller and the sweeping roller associated with the dirt container on the Wiping roller side facing away from the sweeping roller. The sweeping roller and the wiping roller are arranged in this way between the two dirt containers. With the sweeping roller dirt can be swept into the dirt container, which is arranged on one of the wiping roller opposite side of the sweeping roller. With the wiping roller dirt can be conveyed in those dirt container, which is arranged on one of the sweeping roller opposite side of the wiping roller. In particular, based on the main direction of movement, from the front to the rear first a dirt container for the sweeping roller, the sweeping roller, the wiping roller and then arranged a dirt container for the wiping roller. In an advantageous embodiment of the floor cleaning device, it is advantageous if between the wiping roller and the sweeping roller one of these cleaning rollers - wiping roller or brush roller - associated dirt container is arranged and on the side facing away from this dirt container another dirt container, the other cleaning roller - sweeping roller or Wiping roller - is assigned. For example, between the sweeping roller and the wiping roller, which are spaced apart from one another, a dirt container associated with the sweeping roller can be arranged. On the side of the wiping roller facing away from this dirt container, a dirt container assigned to the wiping roller can be arranged. With reference to the main movement direction, provision is made in particular for the sweeping roller, the dirt container associated therewith, the wiping roller and the dirt container associated therewith to be arranged from the front to the rear. Alternatively, it is conceivable that between the sweeping roller and the wiping roller, which are spaced apart, a dirt container associated with the wiping roller is arranged. At the side facing away from this dirt container of the sweeping roller of the sweeping roller associated dirt container can be arranged. With reference to the main direction of movement, provision can be made, in particular, for the dirt bins, the broom, the dirt bins assigned to the wiping roller, and then the wiping roller to be arranged on the floor cleaning device from front to back.

In an advantageous embodiment of the floor cleaning device, it is advantageous if the sweeping roller and the wiping roller are arranged one behind the other and a dirt container is provided, which is assigned to these two, and if dirt of the sweeping roller over the wiping roller in the laterally arranged next to this dirt container, or vice versa , is eligible. For example, the common dirt container, which is associated with two cleaning rollers, arranged on the side facing away from the sweeping roller of the wiping roller. Dirt can be promoted with the sweeping roller in particular over the wiping roller away in the dirt container. Related to the main direction of movement is the sweeping roller, in particular in front of the wiping roller and arranged in front of the dirt container. Alternatively it can be provided that the dirt container is arranged on the side facing away from the wiping roller of the sweeping roller. Dirt of the wiping roller can be promoted in particular over the sweeping roller in the dirt container. Relative to the main direction of movement of the dirt container is arranged in particular in front of the sweeping roller, and behind this the wiping roller.

It can be provided that the sweeping roller and / or the wiping roller on the bottom side reverses or wipes in the main direction of movement of the floor cleaning appliance. In the present case, this can be understood in particular to mean that a section of the sweeping roller or wiping roller contacting the ground in the intended use of the floor cleaning appliance rotates (forwards) in the main direction of movement and reverses or wipes.

It can be provided that the sweeping roller and / or the wiping roller rotates on the floor side against the main direction of movement of the floor cleaning device (to the rear) and reverses or wipes.

The wiping roller and the sweeping roller can be designed to be rotating in the same direction or rotating in opposite directions.

In an advantageous embodiment, the drive unit may comprise two drive elements spaced apart from one another in the transverse direction of the floor cleaning appliance, wherein at least one dirt container is positioned, at least in sections, between the drive elements. In this way, a compact design of the floor cleaning device can be achieved. The at least one dirt container may comprise lateral recesses or recesses in which the drive elements are arranged. In the main direction of movement in front of or behind the recess or recess, the at least one dirt container can project laterally beyond the container. have sections. For example, the at least one dirt container in plan view has a shape of a "double-T".

It proves to be advantageous if the wiping roller and the sweeping roller is assigned a common dirt container. Accordingly, a dirt container for receiving swept up with the sweeping roller and may be provided for receiving recorded with the wiping roller dirt. Preferably, the dirt container on opposite sides of the sweeping roller and the wiping roller respectively associated with a dirt inlet opening.

A different advantageous embodiment of the floor cleaning appliance according to the invention can provide that the floor cleaning appliance comprises a first dirt container for receiving swept up dirt with the sweeping roller and a second dirt container for receiving dirt received by the wiping roller. Two dirt containers are present, each with a dirt inlet for dirt of the sweeping roller or dirt of the wiping roller.

Advantageously, a structural unit is provided which comprises or forms both dirt containers in a common housing. The structural design is simplified. In a common unit, an operator can handle both dirt containers in a simpler manner.

Preferably, the housing has on opposite sides of the sweeping roller and the wiping roller respectively associated with a dirt inlet opening. The sweeping roller and the wiping roller may be spaced from each other, and between them the housing is arranged with the dirt containers.

In another advantageous embodiment, it is advantageous if the dirt container spatially separated from each other on the floor cleaning device are arranged. Preferably, the dirt container can be independently removed from the floor cleaning device and connected to this.

In an advantageous embodiment of the floor cleaning device, it is favorable if the cleaning liquid container and the at least one dirt container are arranged one above the other, wherein in particular the cleaning liquid container is arranged above the at least one dirt container. This makes it easier to carry dirt in the soil closer arranged dirt container. Cleaning liquid can be removed from the cleaning liquid container disposed above in a simpler manner for wetting the bottom surface and / or the wiping roller, for example, solely under the influence of gravity.

Position and orientation information such as "top", "bottom" or the like are in the present case based on a proper use of the floor cleaning appliance, this being positioned on the floor surface. A touch level of the floor cleaning device coincides with the plane defined by the floor surface. "Front", "rear" or the like, as mentioned, in a longitudinal and in particular main movement direction of the floor cleaning appliance to be considered.

In an advantageous embodiment of the floor cleaning device, it is advantageous if the cleaning liquid container and the at least one dirt container are structurally separated from each other. For example, both containers are positioned one above the other but structurally separated. The cleaning liquid container may in particular be arranged above the dirt container.

The cleaning liquid container and the at least one dirt container can be removed separately from one another in an advantageous embodiment of the floor cleaning device and connected thereto. The cleaning liquid container and the at least one dirt container can be releasably connected to each other in an advantageous embodiment, to form a structural unit.

An advantageous embodiment of the floor cleaning appliance according to the invention provides that the cleaning liquid container and the at least one dirt container form a structural unit with a common housing, which can be removed from the floor cleaning device and connected to it. The structural design of the floor cleaning device is thereby improved, and facilitates its handling for the operator.

Optionally, it may be provided with a wiping roller in a floor cleaning device of the type mentioned that the cleaning liquid container and the at least one dirt container form a structural unit with a common housing, which can be removed from the floor cleaning device and connected to it. Such a floor cleaning device, which has a wiping roller and has no sweeping roller, can represent an independent invention. Even with such a floor cleaning device, the structural design is simplified and improves handling. Advantageous embodiments of this floor cleaning device according to the invention may have the features explained herein, as far as they do not relate to the sweeping roller and the dirt container associated therewith.

It proves to be favorable if the cleaning fluid container and the at least one dirt container have a respective deformable container wall delimiting the volume of the cleaning fluid container when removal of cleaning fluid decreases and the volume of the dirt container increases when dirt is introduced. In this way, a compact design of the combined container can be achieved, the one compact design of the floor cleaning device favors. For example, the container can be made relatively flat or relatively narrow, and the same applies to the floor cleaning device. The deformable container wall is, for example, a membrane in whose deformation the volume of the dirt container can increase to the extent that the volume of the cleaning fluid container decreases.

It is expedient if the cleaning liquid container is configured as a prefabricated container filled with a cleaning chemical and comprises a container opening for filling in water. For example, the prefabricated container can be supplied filled with the cleaning chemical. The operator is greatly facilitated handling. After filling the cleaning liquid container with water and inserting the container in the floor cleaning device, the cleaning operation can be recorded.

The floor cleaning device may comprise a pump unit, by means of the cleaning liquid from the cleaning liquid container is conveyed.

In another embodiment, it can be provided that cleaning fluid can be removed from the cleaning fluid container under the influence of gravity.

The floor cleaning device may comprise a wetting device for wetting the wiping roller and / or the bottom surface with the cleaning fluid.

It can be provided that the floor cleaning device comprises a fluid line which engages in an opening of the cleaning liquid container.

Alternatively or additionally, it can be provided that the floor cleaning device is arranged on the cleaning fluid container and on a housing. Includes closing elements for forming a fluid connection, can be removed via the cleaning liquid from the cleaning liquid container.

It is advantageous if the floor cleaning device is free of a suction unit for receiving the dirty liquid from the bottom surface. In the present case, this can be understood in particular to mean that the floor cleaning appliance has no suction unit for generating a suction air flow, with which dirt can be sucked into the at least one dirt container. The floor cleaning device is in particular without suction unit. In this way, the weight of the floor cleaning device can be reduced. It is not necessary to provide electrical energy for a suction unit. The operating time of the floor cleaning device is thereby increased.

The at least one dirt container advantageously has at least one dirt entry opening which extends over the entire or essentially the entire length of the wiping roller or the sweeping roller. In this way, as much swept up or taken up with the wiper roller dirt can be transferred to the dirt container as possible. Advantageously, two dirt entry openings are provided, each extending over the entire or substantially the entire length of the sweeping roller on the one hand or the wiping roller on the other hand, depending on the assignment of the dirt inlet opening.

Preferably, the floor cleaning device comprises at least one arranged on a dirt inlet opening of at least one dirt container sweeping threshold over which dirt from the sweeping roller or from the wiping roller in the dirt container can be conveyed. With two dirt entry openings, two sweeping sleepers can be provided. Over the threshold, dirt can be transported in a simpler way in the dirt container. One of the sweeping roller associated sweeping threshold advantageously extends to the bottom surface so that loose dirt can be swept as effectively as possible over the sweeping threshold in the at least one dirt container.

Especially in the latter case, a sweeping threshold associated with the wiping roller could be dispensed with.

It is favorable if the floor cleaning device comprises a scraper element arranged at a dirt inlet opening of at least one dirt container and which engages with the wiping roller. Dirty liquid can be stripped off in this way largely from the wiping roller and is not applied again to the bottom surface.

In particular, in combination with the last-mentioned advantageous embodiment, it is advantageous if the floor cleaning device comprises a discharge element for liquid from the wiping roller into the dirt container at a dirt inlet opening of a dirt container. For example, dirt liquid is stripped off the stripping element and reaches the discharge element. By means of the discharge element, the dirty liquid is passed into the dirt container.

It can be provided that a housing of the floor cleaning device receiving the at least one dirt container comprises at least one sweeping threshold, the stripping element and / or the diverting element.

Alternatively or additionally, it can be provided that the at least one dirt container comprises at least one sweeping threshold, the stripping element and / or the discharge element.

The wiping roller and the sweeping roller can in particular be aligned parallel to one another. Rotary axes of the wiping roller and the sweeping roller can be aligned transversely to a main direction of movement of the floor cleaning device.

The wiping roller and the sweeping roller can be assigned separate drives. Alternatively, a common drive for the sweeping roller and the wiping roller may be provided.

It is understood that the floor cleaning device may have at least one preferably rechargeable battery for providing electrical energy.

The following description of preferred embodiments of the invention is used in conjunction with the drawings for a more detailed explanation of the invention. Show it :

Figure 1: a schematic sectional view of a floor cleaning device according to the invention;

Figure 2: the floor cleaning device of Figure 1 in a perspective view, partially exploded;

Figure 3: a representation similar to Figure 2 in a further preferred

embodiment;

FIG. 4 shows a schematic representation of a combined cleaning liquid and dirt container of a floor cleaning appliance according to the invention;

FIG. 5: a representation corresponding to FIG. 4 with filled cleaning liquid container and empty dirt container; FIG. 6 shows an illustration of the container in FIG. 5 after the collection of dirt and liquid in the dirt container;

FIG. 7 shows a representation corresponding to FIG. 1 of a further preferred embodiment

Embodiment of the floor cleaning device according to the invention;

FIG. 8 shows a representation corresponding to FIG. 1 of a further preferred embodiment

Embodiment of the floor cleaning device according to the invention;

FIG. 9: a representation corresponding to FIG. 1 of a further preferred embodiment

Embodiment of the floor cleaning device according to the invention;

FIG. 10 shows a representation corresponding to FIG. 1 of a further preferred embodiment

Embodiment of the floor cleaning device according to the invention;

FIG. 11: a representation corresponding to FIG. 1 of a further preferred embodiment

Embodiment of the floor cleaning device according to the invention;

FIG. 12: a representation corresponding to FIG. 1 of a further preferred embodiment

Embodiment of the floor cleaning device according to the invention;

FIG. 13: a representation corresponding to FIG. 1 of a further preferred embodiment

Embodiment of the floor cleaning device according to the invention; and FIG. 14: a representation corresponding to FIG. 1 of a further embodiment of a floor cleaning appliance, which in the context of the present disclosure can represent an independent invention.

Figure 1 shows an occupied by the reference numeral 10 advantageous embodiment of a floor cleaning device according to the invention. The floor cleaning device 10 is used for autonomous cleaning of a floor surface 12, which can be swept in a single operation and then cleaned wet and especially wiped. With the floor cleaning appliance 10 and the advantageous embodiments of the floor cleaning appliance according to the invention explained below, a better cleaning result can be achieved in this way than with conventional floor cleaning appliances.

The floor cleaning device 10 has a housing 14. On the housing 14, a drive unit 16 is held. The drive unit 16 in the present case has two drive wheels 18. The drive wheels 18 can be driven independently of each other by means of a respective drive 20 shown schematically in FIG. This makes it possible to move the floor cleaning device 10 on the floor surface 12 under the control of a control unit 22.

Electrical energy can be provided by means of a rechargeable battery, not shown.

The control unit 22 is preferably in operative connection with a navigation unit 24. In the navigation unit 24, for example, a map of an environment to be cleaned is stored. The navigation unit 24 allows the floor cleaning device 10 to determine its position within the environment and thus within the map. Positions of the environment and the map can be targeted in this way by the floor cleaning device 10. The floor cleaning device 10 may move according to a predetermined cleaning path or cleaning pattern. Alternatively or additionally, there is the possibility of an unplanned movement of the floor cleaning appliance 10.

The control unit 22 and the navigation unit 24 are shown only in FIG.

The floor cleaning device 10 is moved along a main direction of movement 26 during normal use. Relative to the main movement direction 26, the housing 14 has a front side 28 and a rear side 30 transverse to the main movement direction 26 extends a transverse direction of the floor cleaning device 10. The drive wheels 18 are spaced transversely relative to each other and in the longitudinal direction approximately midway between the front side 28 and Rear 30 arranged. For example, the drive wheels 18 are arranged close to outer walls 32, 34 of the housing 14.

The floor cleaning device 10 has a cleaning unit 36. The cleaning unit 36 comprises a sweeping roller 38, which is rotatable about a rotation axis 42 by means of a drive 40. The sweeping roller 38 comprises bristles as cleaning elements. The sweeping roller 38 is received in a receiving space 44, which is formed near the front side 28 of the housing 14. The axis of rotation 42 is aligned in the transverse direction of the floor cleaning device 10.

Instead of the bristles, the sweeping roller 38 could have a trim made of a textile material (eg microfiber), a sponge-like or cloth-like material, with which a sweeping action can likewise be achieved.

In the present case, the sweeping roller 38 is driven such that it rotates on the bottom side against the main movement direction 26. Bristles of the sweeping roller 38 guided against the main direction of movement 26 on the bottom surface 12 (arrow 45 in Figure 1).

The cleaning unit 36 further comprises a wiping roller 46. The wiping roller 46 is rotatable about a rotation axis 50 by means of a drive 48. The wiping roller 46 has a spongy or cloth-like trim for the wet cleaning of the bottom surface 12. For example, a trimming made of a microfiber textile material is provided. The wiping roller 46 is arranged in a receiving space 52, which is formed near the rear side 30 of the housing 14. The axis of rotation 50 is aligned in the transverse direction of the floor cleaning device 10.

In the present case, the wiping roller 46 is driven such that it rotates on the bottom side in the main movement direction 26. The trimming of the wiping roller 46 passes over the bottom surface 12 in the main movement direction 26 (arrow 53 in FIG. 1). The friction counteracts the main direction of movement.

In the present case, the main movement direction 26 can also be defined in particular such that the floor cleaning device 10 is moved by the drive unit 16 in normal operation such that the sweeping roller 38 precedes the wiping roller 46 and bottom surface sections are first detected by the sweeping roller 38 and subsequently by the wiping roller 46.

To simplify the following statements, the information "before, before, behind, behind" or the like refers to the main movement direction 26. In the floor cleaning device 10, the sweeping roller 38 is arranged in front of the wiping roller 46.

The drive wheels 18 are arranged (in the main movement direction) between the wiping roller 46 and the sweeping roller 38. By the distance of the drive wheels 18 in the transverse direction from each other in the housing 14 between the sweeping roller 38 and the wiping roller 46, a receptacle 54 is present. In the receptacle 54 are a cleaning liquid container 56 with a container nenraum 58 and a dirt container 60 with a container interior 62 is arranged.

In the floor cleaning appliance 10, the cleaning liquid container 56 and the dirt container 60 form a common structural unit 64 with a housing 66, which forms the container interior spaces 58 and 62.

The cleaning liquid container 56 is hereinafter referred to simply container 56, the dirt container 60 simplifying container 60th

In the floor cleaning device 10, the container 56 is disposed above the container 60. In plan view, the assembly 64 has a substantially double-T-shape, which has recesses 68 in the central region. The recesses 68 allow the assembly 64 to be inserted between the drive wheels 18. In the direction of the sweeping roller 38 and the wiping roller 46, the assembly 64 each comprises laterally over the recesses 68 projecting container portions 70th

When floor cleaning device 10, the container 60 of the sweeping roller 38 and the wiping roller 46 is assigned and serves to receive both the swept up with the sweeping roller 38 dirt and for receiving the recorded with the wiping roller 46 dirty liquid, a mixture of cleaning fluid and dirt.

Turning to the sweeping roller 38, the container 60 has a dirt entry opening 72. The dirt inlet opening 72 extends in the transverse direction preferably over the entire or substantially entire length of the sweeping roller 38.

At the dirt inlet opening 72, a sweeping threshold 74 is preferably arranged. On the sweeping threshold 74 away loose dirt can be swept by the sweeping roller 38 in the container interior 62. Preferably, The sweeping threshold 74 extends to the bottom surface 12, so that loose dirt can be swept up as effectively as possible.

In a corresponding manner, the container 60, on the side opposite the dirt entry opening 72, comprises a dirt entry opening 76, which faces and is associated with the wiping roller 46. The dirt entry port 76 preferably extends across the entire or substantially the entire length of the wiping roller 46 in the transverse direction.

At the dirt inlet opening 76, a sweeping threshold 78 is arranged in one embodiment of the floor cleaning appliance. Loose and coarser dirt particles can be conveyed from the wiping roller 46 into the container interior 62 via the sweeping threshold 78. The sweeping threshold 78 could be omitted here, since loose dirt can be largely swept up with the sweeping roller 38.

At the dirt inlet opening 76, a stripping element 80 is further provided. The stripping element 80 engages in the trimming of the wiping roller 46.

Dirty liquid is largely stripped off the wiping roller 46 and only slightly again transported to the bottom surface 12.

At the dirt inlet opening 76, a discharge element 82 is also for

Dirty liquid arranged. The stripped dirty liquid reaches the discharge element 82 and can flow from there into the container interior 62.

The sweeping thresholds 74, 78, the stripping element 80 and the discharge element 82 advantageously extend along the entire dirt entry opening 72 and 76, respectively. In the floor cleaning device 10, the assembly 64 comprises the sweeping thresholds 74, 78, the stripping element 80 and the discharge element 82. For example, these are integrally connected to the housing 66.

In another advantageous embodiment, it may be provided that the sweeping threshold 74, the sweeping threshold 78, the stripping element 80 and / or the diverting element 82 are not fixed to the unit 64, but otherwise on the floor cleaning device 10, for example on the housing 14.

In the container interior 58 a cleaning liquid is added. In the present case, these are, in particular, water, to which a cleaning chemical can be added in order to increase the cleaning action.

In a container opening of the container 56 may engage a fluid line 84, can be removed via the cleaning liquid from the container interior 58 and a wetting device 86 can be supplied. With the wetting device 86, the wiping roller 46 and / or the bottom surface 12 can be moistened with cleaning fluid.

The floor cleaning device 10 may include a pump unit 88, is conveyed by the cleaning liquid from the container 56. Alternatively, it may be provided that cleaning fluid is removed from the container 56, in particular under the influence of gravity alone.

To clean the bottom surface 12 moves the floor cleaning device 10 so that the sweeping roller 38 of the wiping roller 46 leads. Loose dirt is swept up with the sweeping roller 38. Subsequently, the abgekehrte bottom surface portion is crossed by the drive wheels 18. Subsequently, the bottom surface portion is cleaned by means of the wiping roller 46 wet. It is advantageous in this case that behind the wiping roller 46 no drive wheel 18 is arranged. The length of the wiping roller 46 is preferably at least as great as the distance of the drive wheels 18 from each other. In addition, the floor cleaning device 10 is free of rollers, in particular behind the wiping roller 46. This leaves after cleaning with the wiping roller 46 no traces on the bottom surface 12 of the drive wheels 18 and a possible role.

The floor cleaning device 10 in the present case has no suction unit for sucking dirt into the container 54. This increases the service life of the floor cleaning appliance 10.

The assembly 64 with the containers 56 and 60 can be removed from the receptacle 54 and the floor cleaning device 10 in the present case as a whole, and it can be used as a whole in the receptacle 54. Separate containers for cleaning fluid and dirty fluid are not required.

The floor cleaning appliance 10 may have a cover element 90, for example as part of the housing 14. The cover element 90 may close the housing 14 at the top and cover the assembly 64.

In the following, further preferred embodiments of the floor cleaning appliance according to the invention will be discussed. For identical or equivalent features or components identical reference numerals are used. The achievable with the floor cleaning device 10 advantages, in particular the cleaning of the bottom surface 12 with the sweeping roller 38 and the wiping roller 46 in one operation, can also be achieved in the below-mentioned floor cleaning equipment. To avoid repetition, reference is made to the above statements. It only deals with the essential differences.

The floor cleaning appliance 100 according to FIG. 3 is largely identical to the floor cleaning appliance 10. Differing from this are separate ones Container 56 for cleaning liquid and 60 provided for dirty liquid. The containers 56, 60 can be detached from the floor cleaning device 10 separately. To remove the dirty liquid container 60, first, the cleaning liquid container 56 is removed. The reverse applies to the insertion.

It can be provided that the containers 56 and 60 can be releasably connected to each other, for example by force and / or positive connection. In this way, a function similar to a floor cleaning device 10 similar embodiment of a floor cleaning device according to the invention can be provided.

In all of the floor cleaning devices described here, it may be provided that the container 56 is a prefabricated container in which a cleaning chemical is received. For commissioning, the operator can fill a cleaning liquid such as in particular water for dilution of the cleaning chemical in the container interior 58. For example, a closing element 94 closing a filling opening 92 on the container 56 can be released for this purpose, and the filling opening 92 can be released.

Figures 4 to 6 show a unit 64 with a container 56 for cleaning liquid and a container 60 for dirty liquid. The containers 56 and 60 have a common container wall 110. The container wall 110 is a bottom wall of the container 56 and a top wall of the container 60, in the arrangement of the containers 56 and 60 one above the other. In another embodiment, the container wall 110 could also be an example lateral partition between the containers 56 and 60.

The container wall 110 is deformable in the present case and designed in particular as a membrane 112. By a deformation of the membrane 112 is possible, the volume of the container interior 58 under magnification to reduce the volume of the container interior 62 and vice versa. Figure 4 shows the situation when both containers 56, 60 are not filled.

Figure 5 illustrates the situation when the container 56 is filled with cleaning fluid. In this case, the volume of the container interior 62 is reduced.

During cleaning, cleaning liquid is removed from the container 56. In addition, dirt and dirty liquid are transferred into the container interior 62. The situation during or after cleaning is shown in Figure 6, which shows the reduced amount of cleaning fluid and the significant amount of dirt and debris.

The assembly 64 of Figures 4 to 6 can be made relatively compact, which offers the opportunity to build the floor cleaning device 10 is relatively compact.

The assembly 64 of Figures 4 to 6 shows that a dirt container 60 is provided with two inlet openings, which are provided for dirt of the sweeping roller 38 and the wiping roller 46. It is conceivable, of course, that the dirt container 60 has only one dirt entry opening, for example when this is associated with only the sweeping roller 38 or the wiping roller 46.

FIGS. 7 to 10 illustrate schematically further preferred embodiments of the floor cleaning appliance according to the invention. These differ from the floor cleaning appliance 10, in particular in the arrangement and construction of the dirt container or the dirt container. Not shown in Figures 7 to 10 of the likewise existing Reinigungsflüssigkeitsbehäl- ter 56. This could be arranged independently of the or the dirt container (s) and in particular be used or removed. It would also be possible to connect the cleaning fluid container 56 with at least one dirt container. The connection can be solvable. The floor cleaning appliance 120 according to FIG. 7 largely corresponds to the floor cleaning appliance 10. Deviating from this, two dirt containers 122, 124 are provided. The dirt container 122 is associated with the sweeping roller 38 and arranged behind this. The dirt container 124 is associated with the wiping roller 46 and arranged in front of it. The dirt container 122, 124 are formed in a common unit 126 with a housing 128, wherein the dirt container 122 is the front of the two containers.

In the floor cleaning appliance 130 according to FIG. 8, the difference from the floor cleaning appliance 120 is that the diverting element 82 extends to a bottom wall 132 of the dirt container 124.

In this way, essentially loose dirt is collected (albeit moistened) in a first container section 134, which is conveyed via the sweeper sill 78. In a second container section 136, mainly contaminant liquid is collected, which is stripped off on the stripping element 80. In this way, a separation of larger dirt particles and dirty liquid takes place in the dirt container 124. By the discharge of the dirty liquid down into the container portion 136, the likelihood that it sloshes out of the container 124, for example, due to the driving movement of the floor cleaning device 130th

A diverter element 82, which as in the floor cleaning device 130 extends to a bottom wall or substantially a bottom wall of the dirt container, may be present in all floor cleaning devices described here.

In the floor cleaning device 140 according to FIG. 9, the sweeping roller 38 and the wiping roller 46 are arranged at a distance from one another. Behind the sweeping roller 38, the dirt container 122 is positioned, behind which the wiping roller 46 is arranged. Behind the wiping roller 46, the dirt container 124 is arranged. The Sweeping roller 38 and the wiping roller 46 rotate on the bottom side in each case opposite to the main direction of movement 26.

In the floor cleaning appliance 150 according to FIG. 10, the sweeping roller 38 and the wiping roller 46 are likewise arranged at a distance from one another. Near the front side 28, the dirt container 122 is positioned, behind which the sweeping roller 38 is arranged. Behind the sweeping roller 38, the dirt container 124 is arranged, behind the wiping roller 46. The sweeping roller 38 and the wiping roller 46 rotate on the bottom side in the main direction of movement 26 and promote dirt respectively in their assigned, previously positioned dirt container 122 and 124th

In the floor cleaning device 160 according to Figure 11, the sweeping roller 38 and the wiping roller 46 are arranged one behind the other, in particular at a distance from the front 28 and the back 30. In front of the sweeping roller 38, the dirt container 122 is disposed, and behind the wiping roller 46, the dirt container 124 is arranged. The sweeping roller 38 returns on the bottom side in the main movement direction 26, the wiping roller 46 returns on the bottom side against the main movement direction 26.

In this case, "consecutively" refers to the one longitudinal direction or the main direction of movement 26 of the floor cleaning appliance. The cleaning rollers are preferably aligned in the transverse direction and parallel to each other. In the floor cleaning apparatus 160, the cleaning rollers are disposed between the dirt containers 122 and 124.

In the floor cleaning device 170 according to FIG. 12, the sweeping roller 38 and the wiping roller 46 are arranged one behind the other. The sweeping roller 38 is positioned, for example, near the front side 28, the wiping roller 46 behind it. Both cleaning rollers promote dirt in a common dirt container 60, which is disposed behind the wiping roller 46 and thus behind two cleaning rollers. For this purpose, the broom 38 can, for example, after the over- Working principle and promote dirt over a dirt guide 172 away in the dirt container. The dirt-guiding element 172 is arranged above the wiping roller 46. The sweeping roller 38 rotates on the bottom side in the main movement direction 26, the wiping roller 46 on the bottom side against the main direction of movement.

In the floor cleaning device 180 according to FIG. 13, a construction similar to that of the floor cleaning device 170 is provided, in which case the dirt container 60 is positioned in front of the sweeping roller 38 and also in front of the wiping roller 46 arranged behind it. Loose debris and debris collected at the wiping roller 46 are conveyed to the debris bin via a debris deflector 182. For example, the Schmutzleitelement 182 is disposed above the sweeping roller 38. The sweeping roller 38 and the wiping roller 46 rotate on the bottom side in the main movement direction 26.

In the floor cleaning devices 170 and 180, the drive wheels are arranged in the longitudinal direction at the level of the dirt container 60 and may, for example, be positioned near the rear side 30 or near the front side 28.

FIG. 14 shows, in a manner similar to FIG. 1, an advantageous embodiment of a floor cleaning appliance, designated by the reference numeral 190. In the context of the present disclosure, the floor cleaning appliance 190 may be a floor cleaning appliance according to the invention and define an independent invention.

In the floor cleaning device 190, the cleaning unit 36 does not include a sweeping roller 38, but only the wiping roller 46 as a cleaning roller. The wiping roller 46 makes possible a damp cleaning of the floor surface 12. In addition, loose dirt or coarse dirt can be absorbed by the wiping roller 46. It is advantageous if the sweeping threshold 78 is present. So that dirt during the process of the floor cleaning device is not at the sweeping threshold 78 remains, it can be provided that this does not reach all the way to the bottom surface 12.

In the floor cleaning device 190, the assembly 64 is provided with the containers 56 and 60. The dirt inlet opening 72 and the sweeping threshold 74 omitted. Both containers 56 and 60 may be taken out of the floor cleaning apparatus 190 together, and the containers may be shared in the floor cleaning apparatus 190.

A detachable connection of the containers 56, 60, as already explained above, is possible. Also separate containers 56, 60 are possible. Drive wheels may be arranged, for example, laterally next to the assembly 60 or in front of the assembly 60.

LIST OF REFERENCE NUMBERS

10, 100, 120, 130, 140, 150, 160, 170, 180, 190 Floor cleaning device

12 floor space

14 housing

16 drive unit

18 drive wheel

20 drive

22 control unit

24 navigation unit

26 Main movement direction

28 front side

30 back side

32, 34 outer wall

36 cleaning unit

38 sweeping roller

40 drive

42 axis of rotation

44 recording room

45 arrow

46 Wiping roller

48 drive

50 axis of rotation

52 recording room

53 arrow

54 recording

56 cleaning fluid container

58 container interior

60 dirt containers

62 container interior

64 unit

66 housing recess

Tray section dirt inlet Sweeping sill

Dirt entrance sweeping threshold

stripping element

diverter

fluid line

Wetting device pump unit

cover

fill opening

closing element

wrapping

Dirt particles container wall

membrane

Dirt container Dirt container unit

casing

bottom wall

Container section Container section Dirt guide element Dirt guide element

Claims

Self-propelled and self-steering floor cleaning apparatus comprising a drive unit (16) for moving on a floor surface (12) to be cleaned, a cleaning unit (36) comprising a wiping roller (46) for wet cleaning the floor surface (12) and a sweeping roller (38) for sweeping the floor Bottom surface (12), a cleaning liquid container (56) for a cleaning liquid and at least one dirt container (60; 122, 124) for dirt picked up by the bottom surface (12), the bottom surface (12) in the same operation with the sweeping roller (38) and the wiping roller (46) is cleanable.

Floor cleaning appliance according to claim 1, characterized in that, relative to a main movement direction (26) of the floor cleaning appliance (10; 100; 120; 130; 140; 150; 160; 170; 180), the sweeping roller (38) in front of the wiping roller (46) is arranged.

Floor cleaning appliance according to claim 1 or 2, characterized in that the at least one dirt container (60; 122, 124) between the sweeping roller (38) and the wiping roller (46) is arranged and that on different dirt inlet openings (72; 76) dirt from the sweeping roller (38) and the wiping roller (46) in the at least one

Dirt container (60; 122, 124) is conveyed.

Floor cleaning device according to claim 3, characterized in that a dirt container (60) is provided which faces on opposite sides of the wiping roller (46) and the sweeping roller (38) each having a dirt inlet opening (72, 76).

5. floor cleaning appliance according to claim 1 or 2, characterized in that the sweeping roller (38) and the wiping roller (46) are arranged one behind the other and two dirt containers (122, 124) are provided, wherein one of the wiping roller (46) associated with dirt container (124) on the side facing away from the sweeping roller (38) of the wiping roller (46) is positioned and one of the sweeping roller (38) associated with the dirt container (122) on the wiper roller (46) facing away from the sweeping roller (38).

6. Floor cleaning appliance according to claim 1 or 2, characterized in that between the wiping roller (46) and the sweeping roller (38) one of these cleaning rollers (38, 46) - wiping roller (46) or sweeping roller (38) - associated dirt container (122 , 124) and on the side facing away from this dirt container (122, 124) another dirt container, which is the other cleaning roller (38, 46) - sweeping roller (38) or wiping roller (46) - assigned.

Floor cleaning appliance according to claim 1 or 2, characterized in that the sweeping roller (38) and the wiping roller (46) are arranged one behind the other and a dirt container (60) is provided, which is associated with these two, and that dirt of the sweeping roller (38) over the Wiping roller (46) in the laterally arranged next to this dirt container (60), or vice versa, is conveyed.

Floor cleaning appliance according to one of the preceding claims, characterized in that a dirt container (122), which is associated with the sweeping roller (38), and / or a dirt container (124) which is associated with the wiping roller (46), with respect to the main movement direction (26 ) of the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) is arranged in front of or behind the sweeping roller (38) or the wiping roller (46).

9. Floor cleaning appliance according to one of the preceding claims, characterized in that the sweeping roller (38) and / or the wiping roller (46) on the bottom side in the main movement direction (26) of the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) reverses or wipes, or against the main direction of movement (26).

10. Floor cleaning appliance according to one of the preceding claims,

characterized in that the wiping roller (46) and the sweeping roller (38) are configured in the same direction rotating or counter-rotating.

11. Floor cleaning appliance according to one of the preceding claims,

characterized in that the drive unit (16) comprises two drive elements (18) spaced apart from one another in the transverse direction of the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) and that at least one dirt container (60; 124), at least in sections, between the drive elements (18) is positioned.

12. Floor cleaning appliance according to one of the preceding claims,

characterized in that a dirt container (60) for receiving swept up with the sweeping roller (38) dirt and for receiving with the wiper roller (46) dirt is provided, preferably that the dirt container (60) on opposite sides of the sweeping roller (38 ) and the wiping roller (46) each associated with a dirt inlet opening (72, 76).

13. Floor cleaning device according to one of claims 1 to 10, characterized in that the floor cleaning device (120; 130; 140; 150; 160) comprises a first dirt container (122) for receiving swept up with the sweeping roller (38) dirt and a second dirt container (124) for receiving dirt picked up by the wiping roller (46).

14. Floor cleaning appliance according to claim 13, characterized in that a both dirt container (122, 124) in a common housing (128) comprehensive or forming unit (126) is provided.

15. Floor cleaning device according to claim 14, characterized in that the housing (128) on opposite sides of the sweeping roller (38) and the wiping roller (46) each associated with a dirt inlet opening (72, 76).

16. Floor cleaning appliance according to claim 13, characterized in that the dirt containers (122; 124) are arranged spatially separated from one another on the floor cleaning appliance (140; 150; 160) and preferably independently of one another taken from the floor cleaning appliance (140; 150; 160) and connected thereto can be.

17. Floor cleaning appliance according to one of the preceding claims,

characterized in that the cleaning liquid container (56) and the at least one dirt container (60; 122, 124) are arranged one above the other, in particular that the cleaning liquid container (56) above the at least one dirt container (60; 122, 124) is arranged.

18. Floor cleaning appliance according to one of the preceding claims,

characterized in that the cleaning liquid container (56) and the at least one dirt container (60; 122, 124) are structurally separated from each other and / or separately from the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) can be removed and connected to this.

19. Floor cleaning device according to one of claims 1 to 17, characterized in that the cleaning liquid container (56) and the at least one dirt container (60; 122, 124) form a structural unit (64) with a common housing (66) which can be removed from and connected to the floor cleaning appliance (10; 100; 120; 130).

20. Floor cleaning appliance according to claim 19, characterized in that the cleaning liquid container (56) and the at least one

Dirt container (60; 122, 124) have a respective deformable container wall (110), wherein the volume of the cleaning liquid container (56) decreases upon removal of cleaning liquid and the volume of the dirt container (60) increases upon entry of dirt.

21. Floor cleaning appliance according to one of the preceding claims,

characterized in that the cleaning liquid container (56) is configured as a prefabricated container filled with a cleaning chemical and comprises a container opening (92) for filling in water.

22. Floor cleaning appliance according to one of the preceding claims,

characterized in that the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) comprises a pump unit (88) by means of which cleaning liquid from the cleaning liquid container (56) can be conveyed.

23. Floor cleaning appliance according to one of the preceding claims,

characterized in that the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) comprises a fluid line (84) which engages in an opening of the cleaning fluid container (56) and / or that the floor cleaning device (10 ; 100; 120; 130; 140; 150; 160; 170; 180) on the cleaning fluid container (56) and on a housing arranged connection elements to form a fluid connection comprises, over the cleaning liquid from the cleaning liquid container (56) can be removed.

24. Floor cleaning appliance according to one of the preceding claims,

characterized in that the floor cleaning apparatus (10; 100; 120; 130; 140; 150; 160; 170; 180) is free of a suction unit for receiving the dirty fluid from the floor surface (12).

25. Floor cleaning appliance according to one of the preceding claims,

characterized in that the at least one dirt container (60; 122, 124) has at least one dirt entry opening (72, 76) extending over the entire or substantially the entire length of the wiping roller (46) or the sweeping roller (38).

26. Floor cleaning appliance according to one of the preceding claims,

characterized in that the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) has at least one sweeping sleeper (74, 74, 76) arranged at a dirt entry opening (72, 76) of at least one dirt container (60; 122, 124). 78) over which dirt from the sweeping roller (38) or the wiping roller (46) in the dirt container (60; 122, 124) is conveyed.

27. Floor cleaning appliance according to one of the preceding claims,

characterized in that the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) comprises a scraper element (80) arranged on a dirt entry opening (76) of at least one dirt container (60; Wiping roller (46) is engaged.

28. Floor cleaning appliance according to one of the preceding claims,

characterized in that the floor cleaning device (10; 100; 120; 130; 140; 150; 160; 170; 180) at a dirt entry opening (76) of at least one dirt container (60; 124) a discharge element (82) for Liquid from the wiping roller (46) into the dirt container (60; 124) inside.

29. Floor cleaning appliance according to one of the preceding claims,

characterized in that a housing (14) of the floor cleaning appliance (10; 100; 120; 130; 140; 150; 160; 170; 180) accommodating the at least one dirt container (60; 122, 124) has at least one sweeping threshold (74, 78). , the stripping element (80) and / or the discharge element (82), or that the at least one dirt container (60; 122, 124) at least one Kehrschwelle (74, 78), the stripping element (80) and / or the discharge element (82 ).

30. Floor cleaning appliance according to one of the preceding claims,

characterized in that the wiping roller (46) and the sweeping roller (38) are aligned parallel to each other.

31. Floor cleaning appliance according to one of the preceding claims,

characterized in that rotation axes (42, 50) of the wiping roller (46) and the sweeping roller (38) are aligned transversely to a main movement direction (26) of the floor cleaning appliance (10; 100; 120; 130; 140; 150; 160; 170; 180) are .

32. Floor cleaning device according to one of the preceding claims,

characterized in that the wiping roller (46) and the sweeping roller (38) are associated with separate drives (40, 48) or that a common drive for the sweeping roller (38) and the wiping roller (46) is provided.