EP3451887A1

EP3451887A1 - Floor treatment system

Info

Publication number: EP3451887A1
Application number: EP17718892.7A
Authority: EP
Inventors: Steffen JÜTTNER; Patrick PRASSER; Heiko BLUMHARDT; Barbara PFISTER; Christoph Waller; Frank Nonnenmann
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2016-05-04
Filing date: 2017-04-20
Publication date: 2019-03-13
Anticipated expiration: 2037-04-20
Also published as: DE202016102396U1; WO2017190960A1; DK3451887T3; US11033166B2; EP3451887B1; US20190069746A1; CN109068923B; CN109068923A

Abstract

The invention relates to a floor treatment system, comprising a mobile floor treatment device (14) and a docking station (12) for said device, wherein the floor treatment device (14) has at least one liquid container (66, 70) with a container wall (78, 90) and a container interior (80, 92), the docking station (12) comprises at least one feed line (18), via which a liquid can be fed to the container interior (80, 92) when the floor treatment device (14) is in the docked position at the docking station (12), the floor treatment system (10) comprises an opening means (48), via which a wall section (102, 104) of the container wall (78, 90) can be moved into an open position to expose at least one container opening (82, 94) of the at least one liquid container (66, 70), via which container opening (82, 94) the liquid can exit the container interior (80, 92) when the floor treatment device (14) is in the docked position, and wherein the wall section (102, 104) can be transferred into the open position by means of the opening means (48) by moving the floor treatment device (14) from a non-docked position to the docked position.

Description

SOIL TREATMENT SYSTEM

The invention relates to a soil treatment system comprising a mobile soil treatment device and a docking station for this, wherein the soil treatment device has at least one liquid container with a container wall and a container interior.

The soil treatment system is, for example, a floor cleaning system, wherein the soil treatment device is configured as a floor cleaning device. This can have at least one cleaning unit for cleaning the bottom surface, which can be acted upon to increase the cleaning effect with a cleaning liquid (usually water) from the at least one liquid container.

However, other types of configured soil treatment devices and systems are conceivable in which a liquid can be used. In particular, floor polishing systems may be mentioned here, wherein the liquid may be a polishing agent.

The at least one liquid container can therefore be in particular a storage container for the liquid. When the level of the liquid in the liquid container drops, the soil treatment device can be transferred to a docking position at the docking station. In the docking position, at least one liquid container can be provided with liquid. For example, a reservoir can be filled.

Object of the present invention is to provide a soil treatment system of the type mentioned with a higher reliability.

This object is achieved by a soil treatment system according to the invention, comprising a mobile soil treatment device and a docking station for these, wherein the soil treatment device at least a liquid container having a container wall and a container interior, wherein the docking at least one supply line comprises over the container interior in a docking of the soil treatment device at the docking a liquid can be supplied, wherein the soil treatment system comprises an opening means, via a wall section of Container wall for releasing at least one container opening of the at least one liquid container is movable to an open position over which container opening in the docking position of the soil treatment device, the liquid can escape from the container interior, and wherein the wall portion in the open position by means of the opening means by moving the soil treatment device from a non-docking in the docking position can be transferred.

In the floor treatment system according to the invention, it is provided that a wall section of the container wall can assume an open position when the floor treatment device assumes the docking position. In the open position, at least one container opening of the liquid container is released. This gives for example the possibility of venting the container interior when supplying the liquid. If the level of the liquid in the container interior is too high, it may further be provided that liquid can escape from the container interior through the container opening. In this way, the pressure in the container interior can be limited and a stagnation of liquid and a backflow of liquid through the at least one supply line can be prevented. The supply line may be protected against entry of any germs or particles possibly present in the liquid container and liquid contained therein. This is particularly important when the docking station is connected to the supply line to a liquid supply network. The wall section can be converted into the open position by means of the opening device, by moving the floor treatment device from a non-docking position into the docking position. When moving the soil treatment device to the docking station for ingesting the docking station ment, the wall section can thereby be transferred automatically and preferably without drive in the open position. This ensures that the at least one container opening is already released when docking the soil treatment device to the docking station. As a result, the floor treatment system according to the invention therefore has a higher reliability than generic floor treatment systems.

The wall section can assume a closed position relative to the at least one liquid container in which the at least one container opening is preferably covered and closed.

In an advantageous embodiment of the soil treatment system, the soil treatment device is conveniently self-propelled and self-steering. Autonomous processing and, in particular, cleaning of the floor surface can be carried out via the floor treatment device embodied as a robot. The soil treatment device can visit the docking station automatically, in particular for filling a storage container with the liquid.

Alternatively or additionally, it may be provided that the soil treatment device is hand-guided. A hand-held soil treatment device may be a ride-on or a ride-on device and / or a walk behind device. An operator can transfer the soil treatment device, in particular for filling the liquid container, into the docking position at the docking station. Optionally, the soil treatment device may be provided with a drive for a chassis.

Depending on the operating mode can be provided that the soil treatment device is operated self-propelled and self-steering or hand-guided.

The soil treatment device is preferably a floor cleaning device in an advantageous embodiment of the soil treatment system and has at least one cleaning unit for cleaning a floor surface. For example, the floor cleaning device is a scrubber-drier, and the cleaning unit has at least one rotationally drivable roller-shaped or plate-shaped cleaning tool. It can be provided a dirt receiving device to transfer a mixture of cleaning fluid and dirt, the dirty liquid in a dirty liquid container of the floor cleaning device.

The at least one container opening is conveniently an overflow opening. When the level of the liquid rises to the edge of the at least one container opening, the liquid can escape by overflowing from the container interior.

It is advantageous if an edge of the at least one container opening extends at least in sections along an outer contour of the soil treatment device, which is formed by a housing of the soil treatment device, and if the liquid can flow outside the housing. Leaking liquid can drain on the outside of the housing, and leakage of liquid into the interior of the soil treatment device can be avoided. Any contamination or damage due to liquid flowing out can be avoided.

In particular, a deepest portion of the edge is conveniently located on the outer contour of the soil treatment device.

The opening device can be designed in different ways. For example, a mechanical, electrical, hydraulic, pneumatic and / or magnetic opening device is provided. The opening device can be actively configured and comprise at least one drive or actuator in order to move the wall section. The drive or actuator can attack directly or indirectly on the wall section. It may be provided a back part means to the wall portion of the open position again to convert into a closed position. The assumption of the docking position on the docking station can be detected by means of at least one sensor device.

The opening device may be arranged on or covered by the ground treatment device or at the docking station. Also conceivable is an opening device whose components are arranged both at the docking station and at the ground treatment device or are covered by these.

In an advantageous embodiment of the soil treatment system, the opening device comprises a stop or Aufgleitelement at the station and a contact element on the wall portion which couples docking the ground treatment device to the station with the stop or Aufgleitelement. In this way, the wall portion when moving from a non-docking position in the docking can be transferred constructively simple and without drive in the open position. Already during docking is thereby ensured that the at least one container opening is released. The slide-on element can have a slide-on surface, which is aligned with the docking station at an angle to a docking direction of the soil treatment device.

Conveniently, the Aufgleitelement is wedge-shaped. For example, the slide-on element can engage in a gap between the wall section and a housing section of the floor treatment device. When contacting the Aufgleitelementes the contact element can be acted upon with a wall opening the opening force.

Alternatively or additionally, it is advantageous if the slide-on element engages under the wall section for transfer into or for holding in the open position. Such a configuration is particularly advantageous, if the wall section is formed or encompassed by a ceiling wall and in particular by a lid of the at least one liquid container.

Advantageously, the wall section is held in the docking position of the soil treatment device by means of the opening device in the open position.

Advantageously, the wall portion is also held in the docking position of the soil treatment device in the open position, when the at least one liquid container is not acted upon via the supply line with the liquid. Even if the soil treatment device is docked to the docking station, but over the at least one supply line but no liquid for the at least one liquid container is provided, the wall portion for releasing the at least one container opening can take the open position. Ventilation of the container interior and leakage of liquid is still possible to increase the reliability of the soil treatment system.

In the at least one supply line preferably at least one valve is connected, wherein the at least one valve for releasing and / or blocking the at least one supply line is actuated.

The at least one valve is preferably releasable or actuatable by a control device of the soil treatment system. The control device may be arranged in the soil treatment device or in the docking station.

It can be provided that the at least one valve can be actuated by moving the soil treatment device into the docking position for releasing. Conversely, it can be provided that the at least one valve can be actuated by moving the soil treatment device out of the docking position into a non-docking position for blocking. The container wall may comprise a ceiling wall which includes or forms the wall section.

In an advantageous embodiment, the soil treatment device has a lid of the at least one liquid container which encloses or forms the wall portion. The lid may therefore be wholly or partially a portion of the container wall. The above-mentioned ceiling wall may be formed by the lid.

It is advantageous if the cover can be raised by means of the opening device from an edge of the at least one container opening, wherein the container opening can be released. In a corresponding manner, it is advantageous if, in a closed position, the cover rests at least in regions on the edge of the at least one container opening and covers the container interior.

The wall section, in particular the cover, may be pivotably and / or displaceably mounted for pivoting or sliding by means of the opening device. A storage of the wall portion is preferably carried out on a housing of the soil treatment device.

In an advantageous embodiment, the wall section is formed or encased by a cover which can contact a sliding element of the opening device with a contact element when the floor treatment device moves from a non-docking position into the docking position. The lid can be pivoted by sliding on the docking station and thereby the at least one container opening can be released.

It is favorable if the wall section, in particular the cover, can be transferred under the influence of gravity from the open position into a closed position in which the at least one container opening is covered. The soil This system has a simple structural design. If the wall section is not held by the opening device in the open position, it automatically returns to the closed position, for example, when undocking the soil treatment device of the docking station.

Alternatively or additionally, it can be provided that the wall section, starting from the open position by means of a rear part device into a

Closed position is convertible.

As low it turns out in a structurally simple embodiment of the soil treatment system when the at least one supply line is accommodated in a housing of the docking station.

It can be provided that the at least one supply line is positioned in sections in a housing portion of the housing, which is arranged in the docking position of the soil treatment device above the at least one container opening. The liquid can flow via the at least one supply line from above through the container opening into the at least one liquid container.

In an advantageous embodiment of the soil treatment system, the abovementioned abutment or sliding element is preferably arranged on the housing section. In particular, a sliding surface for the wall section may be formed on the housing section.

It is advantageous if the at least one supply line has at least one outlet opening for liquid and if the at least one outlet opening is positioned above an edge of the at least one container opening in the open position of the wall section relative to a height direction. In this way, the at least one outlet opening in the open position of the wall section a distance to the edge and the mini- at least have a container opening. Increases the level of the liquid in the container interior to the edge, it is ensured in this way that the liquid does not reach the at least one outlet opening. The reliability of the soil treatment device is thereby increased, because any particles or germs can not get to the at least one supply line and lead adverse event to contamination.

Position and orientation information such as "above", "below" or the like are based on a position of use of the soil treatment system based on a footprint. The at least one outlet opening is therefore positioned in the height direction starting from the installation surface above the edge of the at least one container opening, but not necessarily directly above the edge.

The at least one outlet opening is preferred, based on a height direction, positioned above a lowest position of the edge of the at least one container opening when the wall section assumes the open position.

In an advantageous embodiment of the soil treatment system, a storage container for a consumption liquid is provided as a liquid container, and a filling line for filling the storage container with the consumption liquid is provided as the supply line. In the case of a floor cleaning system, the consumable liquid may, for example, be a cleaning liquid, in particular water or a cleaning chemical. The bottom surface can be acted upon by the cleaning liquid and cleaned by means of at least one cleaning unit. If the level of the consumable liquid during filling exceeds a threshold level, the consumable liquid can escape from the container interior via the container opening. Alternatively or additionally, it may be provided in an advantageous embodiment of the soil treatment system, that a dirty liquid container for receiving a dirty liquid is provided as a liquid container and that a purge line is provided as a supply line for rinsing the dirty liquid container. For example, in a floor cleaning device, a dirty liquid container may be provided into which the dirty liquid is transferred after being picked up from the bottom surface. About the purge line, the rinsing liquid, for example, be used by a rinsing of the soil treatment system for rinsing the dirty liquid container. It may happen, for example, that an outlet or discharge opening of the dirty liquid container is closed or blocked, so that when the container interior is charged with rinsing liquid, its level in the dirty liquid container increases. About the at least one container opening, the dirty liquid can escape from the container interior.

The above explanations show that the soil treatment device may comprise more than one liquid container.

In an advantageous embodiment, it is provided that the at least one supply line branches at a switchable valve into a first supply line section and into a second supply line section, via which a respective liquid container liquid can be provided. The valve can be controlled, for example, by the already mentioned control device of the soil treatment system. In particular, optionally, a storage container can be filled with a consumption liquid or a dirty liquid container can be rinsed with a rinsing liquid.

Alternatively it can be provided that the at least one supply line branches into two supply line sections, in each of which a valve is connected. Furthermore, it can be provided that two separate supply lines are provided for charging a respective liquid container with liquid.

The wall section preferably releases the respective container opening of the liquid container in the open position. A wall portion, in particular formed or covered by a lid, may be provided as part of a respective container wall for more than one liquid container. By transferring only one wall section, container openings of more than one liquid container can be released.

The container openings are preferably positioned laterally next to each other, wherein the wall portion is conveniently applied in a closed position on an edge enclosing both container openings. In a closed position, the wall portion, in particular the lid, cover both container openings.

It can be provided that the container openings of two liquid containers have a common edge portion. This edge portion may be the lowest edge portion of an edge of at least one container opening. This gives, for example, the possibility that liquid can emerge from a first container interior via the lowest edge portion into a further container interior and in particular can overflow.

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 is a side view of a soil treatment system according to the invention with a docking station and a soil treatment device, which occupies a non-docking position; FIG. 2 shows the soil treatment system of FIG. 1, wherein the soil treatment device assumes a docking position; and

Figure 3 is a perspective (partial) view of the soil treatment device of Figure 1 with an open position engaging lid.

Figure 1 shows a preferred embodiment of a soil treatment system according to the invention, which is occupied by the reference numeral 10 and is referred to below as simplifying system 10. The system 10 includes a docking station 12 and a mobile ground treatment device 14, hereinafter referred to simply as the device 14. The system 10 is positioned in a position of use on a footprint, which simultaneously forms a bottom surface 16 to be cleaned.

The docking station 12 comprises a supply line 18 which can be connected to a supply network. This is in particular a water supply network to pressurize the supply line 18 with water. As explained below, water is at the same time a storage liquid and a rinsing liquid for the device 14.

The docking station 12 includes a housing 20 receiving the supply line 18. In the housing 20, a valve 22 is further arranged. At the valve 22, the supply line 18 branches into a first supply line section 24 and a second supply line section 26. It is also possible to form two individual valves through the valve 22.

The valve 22 can be controlled by a control device 28 of the system 10. The controller 28 is presently disposed in the device 14, but it could also be positioned in the docking station 12. Via a control line 30, which has in a docking position of the device 14 electrically interconnected line sections 32, 34, the valve 22 so to selectively supply liquid to one or both of the supply line sections 24, 26.

Downstream of the valve 22, the supply line sections 24, 26 are arranged in sections in a housing section 36. The housing section 36 is formed on the upper side of the housing 20. The housing section 36 projects beyond an end face 38 of the housing 20, moreover. The housing section 36 may overlap the device 14, which will be discussed below, in sections in a docking position at the docking station 12.

Position and orientation information such as "above", "below" or the like are based on the position of use of the system 10 on the bottom surface 16 to be considered.

At the end, an outlet opening 40 is formed on the first supply line section 24. Via the first supply line section 24, the supply line 18 acts as a filling line 42 for filling a storage container of the device 14.

At least one outlet opening 44 is formed at the second supply line section 26. At least one nozzle may be arranged at the outlet opening 44 in order to produce a flat or annular jet. Via the second supply line section 26, the supply line 18 acts as a rinse line 46 for rinsing a dirty liquid container of the device 14.

When the respective supply line section 24 and 26 is acted upon, liquid at the respective outlet opening 40 and 44 can exit downwards in the direction of the bottom surface 16.

The docking station 12 further comprises an opening device 48. The opening device 48 serves as described below for transferring a Lid of the device 14 in an open position and for holding the lid in the open position.

The opening device 48 has a slide-on element 50, which is arranged, for example, on the housing 20 or covered by it. The slide-on element 50 is formed by a projection on the housing section 36. The slide-on element 50 is wedge-shaped and comprises a slide-on surface 52. In the present case, the slide-on surface 52 is oriented at an angle to a plane defined by the bottom surface 16 and points upwards. This plane is horizontally assumed floor surface 16 a horizontal plane, so that the sliding surface 52 is oriented at an angle to the horizontal.

The device 14 is designed as a floor cleaning device and comprises a housing 54, on the underside of a chassis 56 is arranged for moving on the bottom surface 16. On the housing 54, a cleaning unit 58 is further arranged to clean the bottom surface 16.

The device 14 is a scrubber-drier, so that the cleaning unit 58 has at least one rotationally drivable brush-shaped or plate-shaped cleaning tool not shown in the drawing. Another cleaning unit is on the device 14 in the form of a

Dirt pickup device 60 provided (not shown in Figure 3). The dirt collecting device 60 has a suction strip 62 and a suction unit 64 for acting on the suction strip 62 with negative pressure.

The device 14 comprises a first liquid container 66, which is a reservoir 68 for a supply and especially cleaning liquid, especially water. Furthermore, the device 14 comprises a second liquid container 70 for receiving dirty liquid, which can be rinsed via a rinsing liquid, in particular water. The second liquid container 70 is therefore a dirty liquid container 72. The housing 54 of the device 14 comprises a so-called container-in-container concept, in which the dirty liquid container 72 is enclosed by the surrounding reservoir 68. Accordingly, the housing 54 is configured double-walled with an outer wall 74 and an inner wall 76.

Reservoir 68 is bounded by a container wall 78, which may be u.a. the outer wall 74, the inner wall 76 and a bottom wall not shown in the drawing comprises. The container wall 78 defines a container interior 80. On the top side of the reservoir 68, a container opening 82 is provided which has an edge 84. The edge 84 comprises an edge portion 86 along the outer contour of the housing 54 and an edge portion 88, which faces away from the outer contour of the housing 54.

The dirty liquid container 72 comprises a container wall 90, which comprises the inner wall 76 and a bottom wall, not shown in the drawing. The container wall 90 encloses a container interior 92. On the upper side, the dirty liquid container 72 has a container opening 94, which is bordered by an edge 96. The edge 96 runs largely along the outer contour of the housing 54. A portion of the edge 96 is the edge portion 88 of the edge 84. The container opening 82 and the container opening 94 are thereby separated from each other via the edge portion 88.

During operation of the device 14, the cleaning liquid in the reservoir 68, optionally and preferably with the addition of a cleaning chemical, are applied to the bottom surface 16. Dirt can be removed from the bottom surface 16 by means of the cleaning unit 58. The dirty liquid can be taken up by the dirt collecting device 60 from the bottom surface 16 and deposited in the dirty liquid container 72. The device 14 has, as part of the housing 54, a cover for the liquid container 66, 70. The cover is designed as a lid 98. The cover 98 is presently held about a pivot axis 100 pivotally mounted on the housing 54 in the rest. By pivoting the lid 98 can be opened and closed.

The lid 98 in the present case forms a ceiling wall for both the reservoir 68 and the dirty liquid container 72. Accordingly, the lid 98 forms a part of the container wall 78 of the reservoir 68 in the form of a wall portion 102. Further, the lid 98 forms a part of the container wall 90 of the dirty liquid container 72 in the form of a wall portion 104th

On an underside, the lid 98 has a peripheral edge 106. The edge 106 is formed largely corresponding to the edge 96 of the container opening 94.

In a closed position of the lid 98, the edge 106 abuts the edge 96 and the edge portion 86 and in particular on this (Figure 1). The cover 98 covers the container opening 82 as wall section 102 and the container opening 94 as wall section 104. Both the reservoir 68 and the dirty liquid container 72 are closed.

By pivoting about the pivot axis 100 of the lid 98 can be converted into an open position (Figures 2 and 3 with different open positions). In the open position, rim 106 is raised from edge 96 and rim portion 86, and container openings 82 and 94 are released. This can be seen particularly clearly in FIG. 3, but the container openings 82 and 94 are released even when the pivot angle of the lid 98 is smaller in the open position of the lid 98 shown in FIG. The cover 98 has in the region of a front side 108 of the device 14 a wedge-shaped projection 110, which is arranged on the top side of the cover 98. Between the projection 110 and the housing 54, in particular at the edge 96, a gap 112 is formed. The gap 112 is also present in the closed position engaging lid 96.

"Front side" refers to a longitudinal or main direction of movement of the device 14. In the docking position of the device 14, the front side 108 of an end face of the docking station 12 faces.

The device 14 may be a self-propelled and self-steering floor cleaning device (a floor cleaning robot) with which autonomous cleaning of the floor surface 16 can be performed. The control device 28 can control the movements of the device 14 under control of a drive for the chassis 56 and also the cleaning units.

Alternatively or additionally, it may be provided that the device 14 is manually guided and guided by an operator on the bottom surface 16. There may be provided a drive for the chassis 56. The operator can act on the device 14 via a handle 114, shown schematically in the drawing, which in particular comprises a grip device.

For filling the storage container 68 and rinsing the dirty liquid container 72, the device 14 can be docked to the docking station 12. Automatically or under the guidance of the operator, the device 14 is thereby moved from a non-docking position (FIG. 1) at a distance from the docking station 12 into a docking position (FIG. 2).

When docking and taking the Andockstellung the opening means 48 is effective to the cover 98 and thus the wall portions 102, 104 of the container walls 78 and 90 from the closed position to an open position convict and keep in this. The Aufgleitelement 50 engages during docking (and also in the docking position) in the intermediate space 112. A contact element 116 formed by the projection 110 contacts the slide-on surface 52 of the slide-on element 50 with a corresponding slide-on surface 118.

When docking the device 14 in a docking direction 120, in this case parallel to the bottom surface 16 and thus horizontally, the contact element 116 thereby slides on the Aufgleitelement 50. The lid 98 and thus the wall sections 102, 104 are acted upon by an opening force for pivoting about the pivot axis 100. The rim 106 is raised by the rim 96 and rim portion 86, and the container openings 82 and 94 are released. The wall sections 102, 104 occupy an open position.

The housing section 36 partially overlaps the device 14, in the region of the container opening 82 and the container opening 94. In the open position of the wall sections 102, 104, the outlet opening 40 is arranged at a distance from the container opening 82. In a corresponding manner, the outlet opening 44 of the purge line 46 is arranged at a distance from the container opening 94. This means in each case in particular that, based on a height direction, the outlet openings 40, 44 have a respective distance to the edge 84 and 96, and thus to a respective liquid level, which can reach up to the edges 84 and 96, respectively.

The system 10 according to the invention has increased operational safety.

If the device 14 assumes the docking position, in particular the reservoir 68 can be filled with the stock liquid in the case of the valve 22 correspondingly switched by the control device 28. The supply line 18 acts via the supply line section 24 as a filling line 42. The outlet opening 40 is spaced relative to the edge 84, and the reservoir 68 is over a free, through the air running distance and filled through the container opening 82 therethrough.

The container opening 82 which is released in the open position of the wall section 102 makes it possible to vent the storage container 68 when filling for limiting the pressure. The pressure in the reservoir 68 is thereby limited, and this is protected, for example, against bursting. A backflow of the liquid into the supply line 18 is avoided. The liquid level may increase until the stock liquid exits the container interior 80 at the edge 84. The outlet opening 40 is at a distance from the maximum liquid level. This avoids a possible risk of contamination of the supply line 18 by particles and / or germs in the liquid in the reservoir 68.

The container opening 82 is an overflow opening. The liquid can overflow over the edge portion 86 lying deeper edge portion 88, wherein overflowing storage liquid is collected in the container interior 92 of the dirty liquid container 72. This avoids that overflowing storage liquid gets inside the housing 54 and this dirty or damaged.

The valve 22 can also be switched so that the dirty liquid container 72 is rinsed with rinsing liquid. The supply line 18 acts via the supply line section 26 as purge line 46. Preferably, dirt liquid received in the container interior 92 is previously removed by a drain or discharge opening, not shown in the drawing, for example, the dirty liquid is discharged to the docking station 12.

When flushing the dirty liquid container 72, the container interior 92 is charged with the rinsing liquid. With a closed or blocked drain or drain opening, the liquid level in the container interior 92 increase. This liquid level can also rise from the reservoir 68 by overflowing supply liquid, as mentioned.

In the open position of the wall portion 104, the container opening 94 is released for venting to avoid a pressure increase in the container interior 92, a backflow of the liquid into the supply line 18 and a bursting of the dirty liquid container 72.

The container opening 94 is also an overflow opening. If the liquid level in the container interior 92 reaches the edge 96, the liquid can emerge from the container interior 92 and, in particular, overflow. It is advantageous that the liquid can drain on the outer contour of the housing 54 and thereby does not get into the interior of the housing 54.

In the open position of the wall section 104, the outlet opening 44 is arranged at a distance from the edge 96. Therefore, contact of the purge line 46 with any contaminated by any particles and / or germs liquid in the container interior 92 can be avoided. Also in this case, contamination of the supply line 18 is prevented.

The cover 98 and thus the wall sections 102, 104 can be automatically transferred from the open position back into the closed position. When the device 14 is uncoupled from the docking station 12, the cover 98 pivots again about the pivot axis 100 under the influence of gravity, until the edge 106 rests on the edge 96 and the edge section 86 and closes both fluid containers 66, 70. reference numeral

10 soil treatment system

12 docking station

14 device

16 floor space

18 supply line

20 housing

22 valve

24 supply line section

26 supply line section

28 control device

30 control line

32 line section

34 line section

36 housing section

38 front side

40 outlet opening

42 filling line

44 outlet opening

46 purge line

48 opening device

50 sliding element

52 sliding surface

54 housing

56 chassis

58 cleaning unit

60 dirt pick-up device

62 squeegee

64 suction unit

66 liquid container

68 storage tank liquid container

Dirty liquid container outer wall

inner wall

container wall

Container interior

container opening

edge

edge section

container wall

Container interior

container opening

edge

cover

swivel axis

Wall section

wall section

edge

front

head Start

gap

handle

contact element

sliding surface

docking direction

Claims

A soil treatment system comprising a mobile soil treatment device (14) and a docking station (12) therefor, the soil treatment device (14) comprising at least one liquid container (66, 70) having a container wall (78, 90) and a container interior (80, 92), wherein the docking station (12) comprises at least one supply line (18) via which a liquid can be fed to the container interior (80, 92) in a docking position of the soil treatment device (14) at the docking station (12), wherein the soil treatment system (10) comprises an opening device (48), via which a wall section (102, 104) of the container wall (78, 90) for releasing at least one container opening (82, 94) of the at least one liquid container (66, 70) is movable into an open position, via which container opening (48). 82, 94) in the docking position of the soil treatment device (14) the liquid can escape from the container interior (80, 92), and wherein de r wall portion (102, 104) in the open position by means of the opening means (48) by moving the soil treatment device (14) can be transferred from a non-docking position to the docking position.

Soil treatment system according to claim 1, characterized in that the soil treatment device (14) is self-propelled and self-steering.

Soil treatment system according to claim 1 or 2, characterized in that the soil treatment device (14) is manually guided.

Floor treatment system according to one of the preceding claims, characterized in that the soil treatment device (14) is a floor cleaning device and at least one cleaning unit (58) for cleaning a bottom surface (16).

5. soil treatment system according to one of the preceding claims, characterized in that the at least one container opening (82, 94) is an overflow opening.

6. Floor treatment system according to one of the preceding claims, characterized in that an edge (84, 96) of the at least one container opening (82, 94) at least in sections along an outsole contour of the soil treatment device (14) extending from a housing (54) the bottom treatment device (14) is formed, and that the liquid can flow outside the housing (54).

7. soil treatment system according to one of the preceding claims, characterized in that a mechanical, electrical, hydraulic, pneumatic and / or magnetic opening device (48) is provided.

8. soil treatment system according to one of the preceding claims, characterized in that the opening means (48) comprises a stop or Aufgleitelement (50) at the docking station (12) and a contact element (116) on the wall portion (102, 104), which during docking of Floor treatment device (14) to the docking station (12) with the stop or Aufgleitelement (50) coupled.

9. soil treatment system according to claim 8, characterized in that the Aufgleitelement (50) is wedge-shaped and / or engages under the wall portion (102, 104) for transfer into or for holding in the open position.

10. Floor treatment system according to one of the preceding claims, characterized in that the wall portion (102, 104) is held in the docking position of the soil treatment device (14) by means of the opening means (48) in the open position.

11. Floor treatment system according to one of the preceding claims, characterized in that in the at least one supply line (18) at least one valve (22) is connected and that the at least one valve (22) for releasing and / or blocking the at least one supply line (18 ) is operable.

12. soil treatment system according to claim 11, characterized in that the at least one valve (22) by a control device (28) of the soil treatment system (10) is releasable or actuated.

13. Floor treatment system according to claim 11 or 12, characterized in that the at least one valve (22) by moving the soil treatment device (14) in the docking position for releasing actuated.

14. Floor treatment system according to one of the preceding claims, characterized in that the container wall (78, 90) comprises a ceiling wall which comprises or forms the wall portion (102, 104).

15. Floor treatment system according to one of the preceding claims, characterized in that the floor treatment device (14) has a cover (98) of the at least one liquid container (66, 70), which lid (98) the wall portion (102, 104) comprises or forms.

16. A soil treatment system according to claim 15, characterized in that the cover (98) by means of the opening means (48) by an edge (84, 96) of the at least one container opening (82, 94) can be raised and that the lid (98) in one Closed position at least partially rests on the edge (84, 96) of the at least one container opening (82, 94) and the container interior (80, 92) covered.

17. Floor treatment system according to one of the preceding claims, characterized in that the wall portion (102, 104) is pivotally and / or displaceably mounted for pivoting or sliding by means of the opening means (48).

18. Floor treatment system according to one of the preceding claims, characterized in that the wall portion (102, 104) can be transferred under the influence of gravity from the open position into a closed position in which the at least one container opening (82, 94) is covered.

19. Floor treatment system according to one of the preceding claims, characterized in that the wall portion (102, 104), starting from the open position by means of a rear part device can be converted into a closed position.

20. Floor treatment system according to one of the preceding claims, characterized in that the at least one supply line (18) in a housing (20) of the docking station (12) is accommodated.

21. A soil treatment system according to claim 20, characterized in that the at least one supply line (18) is at least partially positioned in a housing section (36) of the housing (20), which in the docking position of the soil treatment device (14) above the at least one container opening (82 , 94) is arranged.

22. Floor treatment system according to claim 21 in conjunction with claim 8, characterized in that the stop or Aufgleitelement (50) on the housing portion (36) is arranged.

23. Floor treatment system according to one of the preceding claims, characterized in that the at least one supply line (18) has at least one outlet opening (40, 44) for liquid and that the at least one outlet opening (40, 44) in the open position of the wall section (102, 104) above an edge (84, 96), relative to a height direction, which is positioned at least one container opening (82, 94).

24. Soil treatment system according to one of the preceding claims, characterized in that a reservoir (68) is provided for a consumption liquid as liquid container (66) and that as a supply line (18) a filling line (42) for filling the reservoir (68) with the consumption liquid is provided.

25. Soil treatment system according to one of the preceding claims, characterized in that a dirty liquid container (72) is provided for receiving a dirty liquid as liquid container (70) and that a purge line (46) for flushing the dirty liquid container (72) is provided as supply line (18) ,

26. Soil treatment system according to one of the preceding claims, characterized in that the soil treatment device (14) comprises more than one liquid container (66, 70).

27. A soil treatment system according to claim 26, characterized in that the at least one supply line (18) branches at a switchable valve (22) into a first supply line section (24) and into a second supply line section (26) via which a respective liquid container (66, 70) liquid can be provided.

28. soil treatment system according to claim 26 or 27, characterized in that the wall portion (102, 104) in the open position, the respective container opening (82, 94) of the liquid container (66, 70) releases.

29. Floor treatment system according to one of claims 26 to 28, characterized in that the container openings (82, 94) are positioned side by side laterally and that the wall portion (102, 104) in a closed position on a both container openings (82, 94) bordering edge (102 96) is present.