EP3474714B1 - Wet cleaning apparatus with a cleaning roller - Google Patents

Description

Technical field

The invention relates to a wet cleaning device, in particular a wet wiping device, with a cleaning roller mounted rotatably about a roller axis and a roller cover which at least partially surrounds the cleaning roller in the circumferential direction and which has at least one displaceable cover element for optionally closing and / or releasing an opening area of the roller cover.

In addition, the invention relates to a method for operating a wet cleaning device, wherein a rotatable cleaning roller for a regeneration operation of the cleaning roller is shifted away from a surface to be cleaned and is at least partially surrounded by a roller cover.

State of the art

Moist cleaning devices and methods for operating a damp cleaning device are known in the prior art.

The DE 102 29 611 B3 discloses, for example, a wet cleaning device with a wiper body which can be driven to rotate about an axis of rotation, in which a cleaning liquid is removed from a storage tank and sprayed onto the surface of the wiper body by means of spray nozzles arranged in the direction of the axis of rotation of the wiper body. The wiping body thus moistened is guided over a surface to be cleaned during a wiping operation, the wiping body taking up dirt from the surface to be cleaned.

During the wiping operation, the wiping body is increasingly covered with dirt, so that regeneration is necessary. For this purpose, the wiper body is lifted off the surface to be cleaned, surrounded with a housing and sprayed with unused cleaning fluid. The wiper body rotates so that cleaning fluid and dirt are expelled from the wiper body, hit the inside of the housing and are transferred to a receiving tank.

The documents disclose other wet cleaning devices of the generic type DE 10 201411188 A1 and EP 0 898 924 A1 .

The wiper body is lifted off the surface to be cleaned manually by a user of the wet cleaning device. The housing is also manually guided around the wiper body. This is uncomfortable because the user of the wet cleaning device has to carry out at least two manual steps. It can happen that the user forgets to surround the wiper body with the housing, so that cleaning liquid can splash into the environment during regeneration operation of the wiper body.

Summary of the invention

It is therefore an object of the invention to provide a wet cleaning device which can be converted from a wiping operation into a regeneration operation in a particularly convenient and reliable manner for a user.

To achieve the aforementioned object, it is proposed that the displaceable cover element of the roller cover is coupled to the cleaning roller via a gear, in particular a toothed gear, in such a way that the cleaning roller is moved by moving the cover element is displaceable or the cover element can be displaced by moving the cleaning roller.

According to the invention, the displacement of the cover element and the displacement of the cleaning roller are now coupled such that displacement of the cover element simultaneously causes displacement of the cleaning roller and that displacement of the cleaning roller simultaneously results in displacement of the cover element. There is therefore no danger that a user, for example, will fail to move the cover element before a regeneration operation and that cleaning fluid will escape to the outside. It also prevents the cover element from bumping against the cleaning roller during displacement and / or forgetting to lift the cleaning roller off the surface. According to the invention, when the cleaning roller is moved, the cover element is automatically moved, and vice versa. The user therefore has to either move only the cover element or only the cleaning roller, as a result of which the cleaning roller or the cover element is then automatically moved. The displacement of the cover element or the cleaning roller is preferably triggered by actuating a corresponding switch on the wet cleaning device. However, manual shifting of the cover element or the cleaning roller is alternatively also possible.

For the coupling of the displacements, a gear is arranged in a mechanical operative connection between the cover element and the cleaning roller, which transmits a displacement movement of the covering element or the cleaning roller to the cleaning roller or the covering element. The transmission can be particularly advantageously a toothed transmission with a plurality of toothed transmission elements, such as, for example, toothed wheels and / or toothed racks. The gearbox can be single-stage or multi-stage. In particular, a transmission is conceivable when transferring energy from the cover element to the cleaning roller or vice versa, which reduces the force to be applied for the displacement.

The cover element is displaceable in the circumferential direction of the cleaning roller about a cover axis, in particular is rotatable about the roller axis. The roller cover is formed in the circumferential direction of the cleaning roller and thereby covers at least a partial peripheral region of the cleaning roller. The covering element can advantageously be displaced, in particular rotatable, about the covering axis to complete the roller covering, so that as the displacement progresses, an opening area of the roller covering is closed or opened. It is particularly advantageous if the cover axis is equal to the roller axis. In this case there is a common axis around which both the cleaning roller and the cover element rotate. This ensures that the rotational paths of the cover element and the cleaning roller do not cross and lead to a collision. This can also ensure at the same time that when the cleaning roller is moved away from a surface to be cleaned there is also a spacing of the cover element from the surface, so that a collision of the cover element with the surface can be avoided if the cover element is in the opening area of the Roll cover is shifted.

Furthermore, it is proposed that the roller axis be arranged on a pivot arm which is pivotably mounted about a pivot axis on a housing of the damp cleaning device. The displacement of the roller axis, that is to say the lifting of the cleaning roller, can in principle be carried out by means of a linear movement or by means of a pivoting movement, the pivoting of the roller axis along a curved path preferably being proposed here. For this purpose, the wet cleaning device has a swivel arm which is mounted on a swivel axis on the housing of the wet cleaning device. The swivel arm carries the roller axis, which is preferably oriented parallel to the swivel axis and which thus swivels the swivel arm is displaced along a circular path around the swivel axis of the swivel arm. Depending on the length of the swivel arm and the position of the roller axis on the swivel arm, a lever can be varied which determines the force required for shifting the roller axis.

It is proposed that the transmission be at least partially arranged on the swivel arm. The swivel arm thus carries, for example, one of several transmission elements of the transmission, so that a displacement of the swivel arm simultaneously leads to a drive of the transmission elements. As a result, the displacement of the swivel arm can simultaneously cause the cleaning roller and the covering element to be displaced.

In this context, it is proposed in particular that the cover element has a first gear element and the housing of the wet cleaning device has a second gear element. One of the gear elements is preferably arranged to be movable and the other gear element is immovable. E.g. The housing of the wet cleaning device can have a toothing in the manner of a toothed rack, and the cover element can have a corresponding partial area, which can be formed in the manner of a rotatable gearwheel, which leads to rotation of the cover element when it is displaced along the toothed rack. This rotation enables the opening area of the roller cover to be closed or opened. Preferably, at least the housing of the wet cleaning device always has a gear element which is immovable relative to the housing and which serves as a counter bearing for the other gear elements. In addition, it is also possible for one of the movable gear elements to be driven by means of a drive.

According to a variant, it is proposed that the first gear element engage in the second gear element, the swivel arm having a cover axis, in particular the roller axis, on which the cover element is rotatably mounted. This variant describes a one-stage construction of the transmission, in which the torque is transmitted directly from the first transmission element to the second transmission element, or vice versa, without the interposition of further transmission elements. In this case, an axis which is advantageously oriented parallel to the pivot axis of the pivot arm and which simultaneously represents the cover axis and the roller axis is formed on the pivot arm. Swiveling the swivel arm causes the cover axis and the cover element to be displaced, the cover element carrying the first gear element interacting with the second gear element which is fixed on the housing of the damp cleaning device. This causes the cover element to shift into the opening area of the roller cover. Since the cover axis is preferably the roller axis at the same time, there is also a displacement of the roller axis and thus a lifting of the cleaning roller from the surface to be cleaned.

According to an alternative variant, it is proposed that a third gear element, in particular a gear, be arranged on the swivel arm, which engages in the second gear element, and that the gear furthermore have a fourth gear element, in particular a gear, connected to the third gear element in a force-transmitting manner , which engages in the first gear element. This variant uses a multi-stage gear, with a total of four gear elements. E.g. For example, two of the gear elements, namely the third gear element and the fourth gear element, can be designed as gear wheels and the first and second gear elements can be designed as toothed racks that are immovable relative to the cover element or the housing (for example, as partial areas of the cover element / housing). Since the first and the second gear element thus do not mesh directly with one another, it is possible to achieve a translation or reduction under the choice of the other gear elements during the transmission of power from the first to the second gear element, or vice versa. By pivoting the swivel arm, for example by means of a drive, the third gear element can thus rotate relative to the second gear element of the housing, which at the same time causes the fourth gear element to rotate, which in turn displaces the cover element relative to the roller cover.

It is proposed that a drive is assigned to the swivel axis of the swivel arm or one of the gear elements. The drive is preferably an electric motor, but can also be a drive operated manually by a user of the wet cleaning device or the like. In addition, lifting magnets, compressed air-dependent air bellows and the like are also suitable. Thus, at least one of the movable gear elements or the swivel arm can be driven, the movement being transmitted to the other gear elements via the gear.

Furthermore, it is proposed that the housing have a first guide link, in which an engagement element arranged on the cover element engages. As a result, the displacement of the cover element relative to the housing of the wet cleaning device can be carried out in such a way that the cover element does not touch the surface to be cleaned when the cover element is moved into the opening region of the roller cover. This configuration is particularly useful if the cover element is directly associated with an actively driven gear element. The drive causes the cover element to rotate, the shape and position of the guide link on the housing causing the displacement of the cover element relative to the housing. The guide link can thus predefine a displacement path of the cover element which does not lead to the cover element coming into contact, for example, with a surface to be cleaned. The guide link is preferably designed in such a way that the cover element is held so far within the housing during the entire displacement movement that it cannot be pivoted beyond the circumference of the housing and / or over any spacing elements that may be present.

Furthermore, it is proposed that the cover element have a second guide link, in which an engagement element arranged on the housing engages. In conjunction with the aforementioned first guide link of the housing, a double link control for the displacements of the cover element and the cleaning roller can thus be formed. As a result, so-called dead points are overcome within the guiding backdrop, at which the internal forces which are to be applied for a relocation can go towards infinity and lead to a standstill of the relocation movement. By arranging the second management backdrop, dead spots are avoided by relocating the managers to the second management backdrop. When the cover element is moved from a closed position to an open position, i.e. out of the opening area of the roller cover, the displacement movement is initially guided by the first guide link formed in the housing, and then, after reaching a dead center, the second guide link formed on the cover element assumes the management task.

It is further proposed that the roller cover has at least one air passage opening, advantageously one air passage opening each has at end regions lying opposite in the longitudinal extent of the roller cover, and particularly preferably in combination with a further air passage opening in a central region of the roller cover. Such an arrangement directs an air flow at the end regions through the air passage openings into the roller cover along the longitudinal extent of the cleaning roller to the central air passage opening, where the air can finally leave the roller cover again.

Finally, in addition to the previously described wet cleaning device, a method for operating a wet cleaning device, in particular such a previously explained wet cleaning device, is also proposed, wherein a rotatable cleaning roller for regeneration operation of the cleaning roller is shifted away from a surface to be cleaned and is at least partially surrounded by a roller cover, wherein the cleaning roller is displaced by displacing a cover element of the roller cover or the cover element is displaced by displacing the cleaning roller, in particular by means of a transmission providing an operative connection between the cover element and the cleaning roller. This creates a method in which, in particular, simultaneous displacement of the cleaning roller and the cover element is made possible for a regeneration operation of the cleaning roller without a user of the wet cleaning device having to carry out a number of manipulations for this purpose. In particular, it is only necessary to move either the cleaning roller or the cover element, a displacement of the other element, namely the cover element or the cleaning roller, then necessarily taking place. A displacement of the cover element or the cleaning roller is either possible manually by the user or by means of a drive which the user actuates, for example, via a switch.

Basically, in the sense of the invention, wet cleaning devices are to be understood as all those devices which can exclusively or, among other things, carry out wet cleaning. These include, on the one hand, the hand-held and automatically movable wet cleaning devices, in particular also cleaning robots, and, on the other hand, combined dry and wet cleaning devices, which can carry out both wet cleaning and dry cleaning. In addition to conventional floor cleaning devices for cleaning a floor, this also means wet cleaning devices for cleaning surface areas in the sense of the invention. These include, for example, devices for cleaning windows and the like.

Brief description of the drawings

Fig. 1

ein erfindungsgemäßes Feuchtreinigungsgerät,

Fig. 2

einen Teilbereich eines Feuchtreinigungsgerätes mit einer Reinigungswalze und einem Abdeckungselement während eines Wischbetriebs,

Fig. 3

den Teilbereich des Feuchtreinigungsgerätes gemäß Figur 2 mit dem Reinigungselement und dem Abdeckungselement während eines Regenerationsbetriebs,

Fig. 4

den Teilbereich des Feuchtreinigungsgerätes in einer perspektivischen Ansicht von außen,

Fig. 5

einen Teilbereich eines Feuchtreinigungsgerätes mit einer Reinigungswalze und einem Abdeckungselement gemäß einer zweiten Variante,

Fig. 6

eine weitere Ansicht des Teilbereiches des Feuchtreinigungsgerätes gemäß Figur 5,

Fig. 7

einen Teilbereich eines Feuchtreinigungsgerätes mit einer Reinigungswalze, einem Abdeckungselement und einer Führungskulisse in einer ersten Stellung,

Fig. 8

den Teilbereich gemäß Figur 7 in einer zweiten Stellung,

Fig. 9

den Teilbereich gemäß Figur 7 in einer dritten Stellung,

Fig. 10

einen Teilbereich eines Feuchtreinigungsgerätes mit zwei Führungskulissen in einer ersten Stellung,

Fig. 11

den Teilbereich gemäß Figur 10 in einer zweiten Stellung,

Fig. 12

den Teilbereich gemäß Figur 10 in einer dritten Stellung.

The invention is explained in more detail below on the basis of exemplary embodiments. Show it:

Fig. 1

an inventive wet cleaning device,

Fig. 2

a partial area of a wet cleaning device with a cleaning roller and a cover element during a wiping operation,

Fig. 3

the section of the wet cleaning device according to Figure 2 with the cleaning element and the cover element during a regeneration operation,

Fig. 4

the partial area of the wet cleaning device in a perspective view from the outside,

Fig. 5

a partial area of a wet cleaning device with a cleaning roller and a cover element according to a second variant,

Fig. 6

a further view of the portion of the wet cleaning device according to Figure 5 ,

Fig. 7

a partial area of a wet cleaning device with a cleaning roller, a cover element and a guide link in a first position,

Fig. 8

the section according to Figure 7 in a second position,

Fig. 9

the section according to Figure 7 in a third position,

Fig. 10

a partial area of a wet cleaning device with two guide links in a first position,

Fig. 11

the section according to Figure 10 in a second position,

Fig. 12

the section according to Figure 10 in a third position.

Description of the embodiments

Figure 1 shows a wet cleaning device 1, which is designed here as a wet wiping device with a basic device 20 and an attachment device 21. A handle 23 is arranged on the base device 20 with a handle 24, by means of which a user can guide the wet cleaning device 1 over a surface to be cleaned. The handle 23 is advantageously designed to be telescopic, so that a user can adjust the height of the wet cleaning device 1 to his body size can adjust. During a normal wiping operation, the user moves the wet cleaning device 1 back and forth across the surface to be cleaned, alternately pushing the wet cleaning device 1 away from him and pulling it towards himself.

The attachment 21 has a housing 10 in which a tank (not shown) for cleaning liquid is arranged. Cleaning liquid can be poured into the tank via a filler neck 22. Furthermore, a cleaning roller 2 is arranged in the housing 10 and can be rotated about a roller axis 3. The roller axis 3 is essentially perpendicular to a usual direction of movement of the wet cleaning device 1. The cleaning liquid can be dispensed from the tank onto the surface of the cleaning roller 2 in order to moisten it.

During a wiping operation, the cleaning roller 2 rotates about the roller axis 3, so that the peripheral surface of the cleaning roller 2 continuously rolls on the surface to be cleaned. The cleaning roller 2 is usually wrapped with a cleaning covering, possibly with the interposition of an additional liquid-storing sponge body. The cleaning surface here is, for example, a textile cleaning cloth. During the wiping operation, dirt accumulates continuously on the cleaning roller 2, ie the cleaning covering. Therefore, a regeneration of the cleaning roller 2 may be necessary after a certain operating time, dirt and contaminated liquid being removed from the cleaning roller 2 during a regeneration operation. For this purpose, the cleaning roller 2 is usually rotated at a speed which is higher than the speed of the cleaning roller 2 during a wiping operation. This causes dirt and liquid contaminated with dirt to be thrown off the cleaning roller 2. The sprayed liquid can be collected and fed to a collection container.

Figure 2 shows a portion of the housing 10 of the attachment 21, in which the cleaning roller 2 is held rotatable about the roller axis 3. The roller axis 3 is arranged on a pivot arm 15 arranged on the housing 10, the roller axis 3 extending essentially perpendicular to the longitudinal extent of the pivot arm 15 and parallel to a pivot axis 9 of the pivot arm 15. The swivel arm 15 is held on the housing 10 of the attachment 21 so that it can swivel about the swivel axis 9.

The roller axis 3 simultaneously forms a cover axis 8 for a cover element 5 of a roller cover 4, which at least partially surrounds the cleaning roller 2. The cover element 5 can be displaced relative to the roller cover 4 in an opening area 6 of the roller cover 4 in order to preferably completely close the roller cover 4 in the circumferential direction of the cleaning roller 2. The roller cover 4 can be a partial area formed in one piece with the housing 10. The roller cover 4 has air passage openings 25, one of which is arranged in each case at end regions opposite the longitudinal extent of the roller cover 4, and one in a medium length region of the roller cover 4. The air passage openings 25 serve for the entry and exit of ambient air into the roller cover 4.

A gear 7, which has a total of four gear elements 11, 12, 13, 14, is assigned to the end region of the pivot arm 15 opposite the pivot axis 9. At the end region of the swivel arm 15, a gear element 13 is initially arranged, which engages in a corresponding gear element 12 formed on the housing 10. At that A further gear element 14 is arranged opposite the gear element 12 on the circumferential side of the gear element 13, which is toothed on the one hand with the gear element 13 and on the other hand with a gear element 11 formed on the cover element 5. Like the gear element 12, the gear element 11 forms a kind of rack. The gear elements 13 and 14 can be seen as gears. The gear elements 11, 12, 13, 14, which are in operative connection with one another, have mutually corresponding toothing.

To from the in Figure 2 shown position of the cleaning roller 2 and the cover member 5 to the in Figure 3 to reach the position shown, which corresponds to a regeneration operation of the cleaning roller 2, the pivot arm 15 is pivoted about the pivot axis 9, namely in one direction into the housing 10, ie with respect to a normal position of the wet cleaning device 1 on the surface to be cleaned from the surface to be cleaned away. The swiveling movement of the swivel arm 15 can either be initiated manually by a user of the wet cleaning device 1, for example by pressing a button, or automatically by a control of the wet cleaning device 1, which automatically initiates a regeneration operation when the cleaning roller 2 is covered with dirt as determined by sensors. An electric motor is preferably assigned to the swivel arm 15. In addition, pivoting can also take place by manual intervention by the user, for example also by gripping and pivoting the swivel arm 15.

Due to the pivoting movement of the swivel arm 15 into the housing 10 of the wet cleaning device 1, the gear element 13 rotates clockwise and continuously engages in the toothing of the gear element 12. On the one opposite the gear element 12 in the circumferential direction On the side of the gear element 13, a gear element 14 engages in the toothing of the gear element 13. This gear element 14 rotates counterclockwise through the toothing with the gear element 13 and thereby pushes the cover element 5, in whose gear element 11 it engages, in the direction of the opening area 6 of the roller cover 4. Thus, the pivoting of the swivel arm 15 results in a simultaneous movement Lifting the cleaning roller 2 off the surface to be cleaned and relocating the cover element 5 into the opening area 6 of the roller cover 4.

As an alternative to the previously described drive of the swivel arm 15 in the region of the swivel axis 9, one of the gear elements 11, 12, 13, 14 can alternatively also be driven by means of an electric motor, for example the gear element 13, which on the end region of the swivel arm 15 opposite the swivel axis 9 is arranged and engages in the gear element 12 of the housing 10.

Figure 4 shows that in the Figures 2 and 3rd shown portion of the wet cleaning device 1 in a perspective view from the outside. A part of the housing 10 of the damp cleaning device 1 can be seen, which carries the roller cover 4. The cleaning roller 2 is arranged in the interior of the roller cover 4 and is advantageously formed over the entire longitudinal extent of the roller cover 4. The swivel arm 15, which supports the roller axis 3, is arranged at an end region of the cleaning roller 2. The end region of the swivel arm 15 opposite the pivot axis 9 is connected to the gear element 13, for example via a rotation axis 27 assigned to the end region. The gear element 13 engages in the gear element 12 of the housing 10, a part of the housing 10 supporting the gear element 12 here just a section for better understanding is outlined. It goes without saying that the housing 10 is preferably formed completely around the roller cover 4. The gear element 14 engaging in the gear element 13 engages through the roller cover 4 in the toothing of the gear element 11 of the cover element 5. For this purpose, the roller cover 4 has corresponding cutouts 26.

The Figures 5 and 6 show a second variant of the invention, in which the transmission 7 is designed as a single-stage transmission. The gear 7 comprises a first gear element 11, which is formed on the cover element 5 and a second gear element 12, which is formed on the housing 10 of the wet cleaning device 1. In detail, according to this variant, the partial region of the wet cleaning device 1 shown again has a swivel arm 15 which can be swiveled about a swivel axis 9. The end region of the swivel arm 15 opposite the swivel axis 9 carries the roller axis 3, which is also the cover axis 8 for the cover element 5. The roller axis 3 or cover axis 8 engages through the roller cover 4 into the cleaning roller 2. The cover element 5 has a first gear element 11, which engages in a corresponding second gear element 12 of the roller cover 4. If the swivel arm 15 is now driven, for example via the swivel axis 9, the swivel arm 15 pivots further into the housing 10 of the wet cleaning device 1, as a result of which the cleaning roller 2 arranged on the roller axis 3 is moved into the housing 10. As a result of the swiveling movement of the roller axis 3 or cover axis 8, the cover element 5 rotates along the common toothing of the gear elements 11 and 12 in the clockwise direction into the opening area 6 of the roller cover 4. The pivoting movement of the pivot arm 15 thus simultaneously removes the cleaning roller 2 from the surface to be cleaned, that is, further into the housing 10 of the Wet cleaning device 1 swung in, and the cover element 5 is moved into the opening region 6 of the roller cover 4, so that the cleaning roller 2 is preferably completely surrounded in the circumferential direction by the roller cover 4 and the cover element 5.

The Figures 7 to 9 show a third embodiment variant of a partial area of the wet cleaning device 1. According to this embodiment variant, a driven gear element 12 is assigned to the cover element 5. The gear element 12 rotates about the pivot axis 9 of the pivot arm 15. The toothing of the gear element 12 engages in a toothing of the cover element 5, which forms a first gear element 11. The cover element 5 furthermore has an engagement element 17 in the form of a sliding block, which engages in a guide slide 16 of the housing 10. Both the cover element 5 and the cleaning roller 2 are again rotatably supported via a common roller axis 3 or cover axis 8, the axes 3, 8 being arranged on the end region of the pivot arm 15 opposite the pivot axis 9. According to this embodiment variant, it comes from the in Figure 7 shown position of a wiping operation to a rotation of the gear element 12 about the pivot axis 9 clockwise. As a result, the cover element 5 interlocked with the gear element 12 via the gear element 11 is rotated counterclockwise around the cover axis 8, ie in the direction of the opening area 6 of the roller cover 4. Since the engagement element 17 of the cover element 5 engages in the guide link 16 of the housing 10 the path of the engagement element 17 and thus also of the cover element 5 is predetermined relative to the housing 10. As a result, the cover axis 8, which is also the roller axis 3, is displaced further into the housing 10, which at the same time causes the cleaning roller 2 to move into the housing 10. Thus, the cleaning roller 2 is lifted from the surface to be cleaned and pivoted into the housing 10 of the wet cleaning device 1, which goes hand in hand with the closing of the opening area 6 by the cover element 5. The progressive rotation of the cover element 5 and the retraction of the cleaning roller 2 into the housing 10 are in the others Figures 8 and 9 shown. The position according to Figure 9 corresponds to the position of the cover element 5 and the cleaning roller 2 during a regeneration operation of the wet cleaning device 1.

The Figures 10 to 12 show a fourth embodiment variant of the invention, in which the displacement movements of the cleaning roller 2 and the cover element 5 are predetermined by two guide links 16, 18. In addition to the already in relation to the Figures 7 to 9 First guide link 16 of the housing 10 illustrated, the cover element 5 now has a second guide link 18, in which an engagement element 19 of the housing 10 engages. When the cover element 5 rotates, the relatively large turning radius can lead to dead centers within the link control, at which the internal forces go towards infinity. By introducing the second guide link 18, it is possible to avoid these dead spots by relocating the managers to the second guide link 18. As in the Figures 10 to 12 shown, the rotation of the cover element 5 is initially based on the position corresponding to a wiping operation Figure 10 guided through the second guide link 18 and the engaging element 19. As the rotation progresses (transition from Figure 11 on Figure 12 ) the engaging element 19 is released from the guide link 18, so that the rotation of the cover element 5 is guided by the first guide link 16. With a correspondingly reversed direction of rotation of the cover element 5, ie from a position corresponding to a regeneration operation ( Figure 12 ) in a position corresponding to a wiping operation ( Figure 10 ) the cover element 5 is first lifted through the first guide link 16 until a dead center is reached. From there, the engagement element takes effect 19 of the housing 10 into the guide link 18 of the cover element 5 and takes over the leadership of the further rotational movement.

A regeneration operation of the wet cleaning device 1 is now initiated in such a way that the cleaning roller 2 and the cover element 5 are moved in accordance with one of the embodiment variants shown above, until the cleaning roller 2 is completely encased in the circumferential direction by the roller cover 4 and the cover element 5. Then the cleaning roller 2 is greatly accelerated, possibly with the previous or simultaneous addition of liquid. Due to the high speed of the cleaning roller 2, which should be higher than during a wiping operation, the liquid including dirt is thrown out of the cleaning roller 2. In addition, a stripping device can be provided which touches the surface of the cleaning roller 2 and additionally supports the regeneration. The rotation of the cleaning roller 2 simultaneously causes a flow of the ambient air, as a result of which air flows into the roller cover 4 through the air passage openings 25 arranged at the end on the roller cover 4, propagates along the longitudinal extent of the cleaning roller 2 up to one in a central region of the longitudinal extent of the roller cover 4 arranged further air passage opening 25. The accelerated air supports the transport of the liquid and the dirt in the direction of a collecting duct having the air passage opening 25. Overall, an optimal regeneration result is achieved.

Although the invention has been explained by way of example with reference to a hand-held wet cleaning device 1, the wet cleaning device 1 according to the invention can of course also be a cleaning robot. In addition, the wet cleaning device 1 can be a combined wiping and suction device be or a wet cleaning device 1, which can only perform a wet cleaning task.

List of reference numbers

1

Moist cleaning device

2nd

Cleaning roller

3rd

Roller axis

4th

Roller cover

5

Cover element

6

Opening area

7

transmission

8th

Cover axis

9

Swivel axis

10th

casing

11

Gear element

12th

Gear element

13

Gear element

14

Gear element

15

Swivel arm

16

Leadership backdrop

17th

Engaging element

18th

Leadership backdrop

19th

Engaging element

20th

Base unit

21

Front attachment

22

Filler neck

23

stalk

24th

Handle

25th

Air passage opening

26

Recess

27

Axis of rotation

Claims (11)

1. A wet-cleaning appliance (1), in particular a wet mop, having a cleaning roller (2) mounted so that it can rotate around a roller axis (3), and a roller cover (4) that at least partially encloses the cleaning roller (2) in a circumferential direction, which has at least one displaceable covering element (5) for optionally closing and/or releasing an opening region (6) of the roller cover (4), wherein the displaceable covering element (5) is coupled with the cleaning roller (2) by a gear mechanism (7), in particular a toothed gear mechanism, in such a way that the cleaning roller (2) can be displaced by displacing the covering element (5), or the covering element (5) can be displaced by displacing the cleaning roller (2), characterized in that the covering element (5) is displaceable in a circumferential direction of the cleaning roller (2) around a covering axis (8).
2. The wet-cleaning appliance (1) according to claim 1, characterized in that the covering element (5) is rotatable around the roller axis (3) in a circumferential direction of the cleaning roller (2).
3. The wet-cleaning appliance (1) according to claim 1 or 2, characterized in that the roller axis (3) is arranged on a swiveling arm (15) that is mounted on a housing (10) of the wet-cleaning appliance (1) and can pivot around a swivel axis (9).
4. The wet-cleaning appliance (1) according to claim 3, characterized in that the gear mechanism (7) is arranged at least partially on the swiveling arm (15).
5. The wet-cleaning appliance (1) according to claim 3 or 4, characterized in that the covering element (5) has a first gear mechanism element (11), and the housing (10) of the wet-cleaning appliance (1) has a second gear mechanism element (12).
6. The wet-cleaning appliance (1) according to claim 5, characterized in that the first gear mechanism element (11) engages into the second gear mechanism element (12), wherein the swiveling arm (15) has a covering axis (8), in particular the roller axis (3), on which the covering element (5) is rotatably mounted.
7. The wet-cleaning appliance (1) according to claim 5 or 6, characterized in that a third gear mechanism element (13), in particular a toothed wheel, is arranged on the swiveling arm (15), which engages into the second gear mechanism element (12), and that the gear mechanism (7) further has a fourth gear mechanism element (14), in particular a toothed wheel, which is connected with the third gear mechanism element (13) in a force-transmitting manner, and engages into the first gear mechanism element (11).
8. The wet-cleaning appliance (1) according to one of claims 3 to 7, characterized in that a drive, in particular an electric motor, is allocated to the swiveling axis (9) of the swiveling arm (15) or one of the gear mechanism elements (11, 12, 13, 14).
9. The wet-cleaning appliance (1) according to one of claims 3 to 8, characterized in that the housing (10) has a first slotted guide (16), into which an engaging element (17) arranged on the covering element (5) engages.
10. The wet-cleaning appliance (1) according to claim 9, characterized in that the covering element (5) has a second slotted guide (18), into which an engaging element (19) arranged on the housing (10) engages.
11. A method for operating a wet-cleaning appliance (1), in particular a wet-cleaning appliance (1) according to one of the preceding claims, wherein a rotatable cleaning roller (2) for a regeneration operation of the cleaning roller (2) is displaced away from a surface to be cleaned, and at least partially enclosed with a roller cover (4), wherein the cleaning roller (2) is displaced by a displacement of a covering element (5) of the roller cover (4), or the covering element (5) is displaced by a displacement of the cleaning roller (4), in particular by means of a gear mechanism (7) that provides an operative connection between the covering element (5) and cleaning roller (2), characterized in that the covering element (5) is displaced in a circumferential direction of the cleaning roller (2) around a covering axis (8).

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