EP3474717A1

EP3474717A1 - Wet-cleaning appliance having a rotatable cleaning roller

Info

Publication number: EP3474717A1
Application number: EP17730482.1A
Authority: EP
Inventors: Bernd Lindenbeck
Original assignee: Vorwerk and Co Interholding GmbH
Current assignee: Vorwerk and Co Interholding GmbH
Priority date: 2016-06-28
Filing date: 2017-06-16
Publication date: 2019-05-01
Anticipated expiration: 2037-06-16
Also published as: US10758102B2; EP3474717B1; TW201804948A; CN109310260A; JP2019520145A; ES2813173T3; DE102016111808A1; CN109310260B; US20190125155A1; WO2018001754A1

Abstract

The invention relates to a wet-cleaning appliance (1), in particular a wet mop, having a cleaning roller (2), which can be rotated about a roller axis (3), and having a wetting device (4) for applying a liquid to the cleaning roller (2). In order to provide for regeneration of the cleaning roller (2) with the best possible result, it is proposed that the wet-cleaning appliance (1) should have a wiper device (5), in particular a wiper lip, which can be displaced onto the cleaning roller (2) and is intended for assisting in removing liquid and/or dirt from the cleaning roller (2) and/or for assisting in applying liquid to the cleaning roller (2). A method for operating a wet-cleaning appliance (1) is also proposed.

Description

description

Wet cleaning device with a rotatable cleaning roller area of technology

The invention relates to a wet cleaning device, in particular a wet wiper, with a rotatable about a roll axis cleaning roller and a moistening device for applying a liquid to the cleaning roller.

Moreover, the invention relates to a method for operating a wet cleaning device, in particular a wet mop.

State of the art

Wet cleaning devices or methods for operating a wet cleaning device are known in the art. DE 102 29 611 B3 discloses, for example, a wet cleaning device with a rotating about a rotation axis driven wiping body, in which a cleaning liquid removed from a storage tank and sprayed by means arranged in the direction of the axis of rotation of the wiper body spray nozzles on the surface of the wiper body. The wiper body moistened in this way is guided over a surface to be cleaned during a wiping operation, the wiper body receiving dirt from the surface to be cleaned.

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

Summary of the invention

Based on the aforementioned prior art, it is an object of the invention to develop a wet cleaning device of the aforementioned type so that a regeneration of the cleaning roller with the best possible result is possible, in particular with a shorter regeneration time and a lower use of liquid. Moreover, it is a further object of the invention, the wet cleaning device alternatively or additionally also with respect to the application of liquid to the cleaning roller.

To solve the above object, it is proposed that the wet cleaning device roller displaceable to the cleaning roller stripping device, in particular a wiper lip, to support the removal of liquid and / or dirt from the cleaning roller and / or to support the application of liquid to the Cleaning roller has.

The scraper device according to the invention can thus fulfill basically two tasks.

On the one hand, the stripping device moved close to the cleaning roller can improve the moistening of the cleaning roller. The cleaning roller is usually provided with a textile cleaning pad, between the fibers can be absorbed and stored moisture. If the stripping device is moved close to the cleaning roller in such a way that it touches only a part of the fiber length, the stripping device can press speed between the fibers of the cleaning roller, without these can be solved in a further rotation of the cleaning roller by sweeping the fibers with the stripping back out of the cleaning pad. Furthermore, the stripping device can serve for removing the liquid and / or for removing dirt from the cleaning roller. For this purpose, the stripping device is moved to the cleaning roller so that it presses with a contact force against the cleaning roller and the liquid preferably stripped off mechanically from the cleaning roller. By this stripping both the liquid is pressed out of the material of the cleaning roller or stripped off, as well as the recorded dirt, so that the regeneration success is improved over the prior art. By the rotation of the cleaning roller, the dirt is also thrown off the cleaning roller or the stripping device and can be fed to a collecting container. The cleaning effect is thus achieved on the one hand by the centrifuging of the liquid / the dirt of the rotating cleaning roller and on the other by stripping, in which optionally also liquid or dirt from the cleaning roller is pressed. In addition, the effect is used that the bent during the rotation of the cleaning element by the stripping means fibers or bristles of the cleaning pad after passing the stripping by the residual stress and attacking centrifugal force are raised again. As a result, the centrifuging of the liquid or the dirt is additionally supported. The stripping device is advantageously formed over the entire axial length of the cleaning roller, so that the entire peripheral surface of the cleaning roller nigungswalze can be regenerated or moistened during a complete rotation of the cleaning roller.

For the purposes of the invention, the wet cleaning device may be a wet cleaning device which is hand-operated by a user or else a self-cleaning wet cleaning device, for example a wiping robot. In addition, for the purposes of the invention, wet cleaning devices are also to be understood which have a suction function and a wiping function, for example combined suction and wiping devices.

It is proposed that the moistening device and the scraping device are parts of a common functional unit. This functional unit thus takes on the one hand the task of moistening the cleaning roller and on the other hand, the task of stripping liquid and dirt from the cleaning roller. Likewise, the scraper device also satisfies the aforementioned function of incorporating the liquid in one with a corresponding spacing from the surface of the cleaning roller

Cleaning surface of the cleaning roller. The training as a common functional unit also has the advantage that the functional unit can be mounted as a whole in the wet cleaning device, so that in the production of less assembly steps and thus a lower assembly time are required lent. In addition, a smaller space for the functional unit within the wet cleaning device is necessary because a smaller number of fasteners and the like is required. In addition, a common housing may be formed smaller than two juxtaposed individual housing for each of the humidifier and the stripping. In terms of a common functional unit, variants are conceivable in which the moistening device and the scraper device are designed in one piece, for example in the sense of a common functional unit. seed plastic injection molding, as well as variants in which the moistening device and the stripping device are attached to each other to form a common functional unit, so that they can be installed together in the wet cleaning device. Particularly advantageously, the common functional unit-and thus also the moistening device and the stripping device-is formed along the entire longitudinal extent of the cleaning roller so that moistening and stripping is possible uniformly over the length of the cleaning roller. The functional unit is displaceably arranged on the housing of the wet cleaning device, so that it is displaceable in total with a single displacement movement relative to the cleaning roller. The functional unit can thus be moved particularly easily and quickly from a position for a wiping operation into a position for a regeneration operation.

Furthermore, it is proposed that the stripping device and / or the functional unit are mounted about a parallel to the cleaning roller pivot axis pivotally mounted on a housing of the wet cleaning device, wherein the stripping and / or the functional unit directed in particular by a roller in the direction of cleaning Spring force are applied. As a result, the stripping device or the functional unit can be pivoted from a wiping position into a regeneration position, ie either pivotable away from the cleaning roller or swiveled towards the cleaning roller, wherein in the latter case the stripping device comes into mechanical contact with the cleaning roller. In order to achieve pressing on the cleaning roller with the greatest possible force in the position of the stripping device or functional unit pivoted to the cleaning roller, an actuating device acting on the stripping device or functional unit advantageously has a spring which presses the stripping device against the cleaning roller. In addition, by the spring loading a tolerance compensation at any diameter Variations in the cleaning roller, bumps or the like) can be achieved. The adjusting device may for example have a torsion spring drive with a coil spring.

It is proposed that the stripping device and / or the functional unit is assigned a displacement drive, which is designed to displace the stripping device and / or the functional unit relative to the cleaning roller. Thus, the wet cleaning device in addition to optionally a spring for applying a suitable for the regeneration contact pressure on the cleaning roller on a displacement drive, such as a linear drive or a rotary actuator, which can shift the Abstreifeinrich- device and / or the functional unit relative to the cleaning roller. In this case, the displacement drive the stripping device or the functional unit preferably relocate in several stages. A first stage may be a fully detached position of the stripper from the cleaning roller. A second position may be arranged such that the stripping means only contacts an outermost free end region of the fibers of a cleaning pad of the cleaning roller. Finally, a third position may be characterized in that the stripping device presses against the cleaning roller with the greatest possible force. The latter, in particular in conjunction with the spring force of the previously proposed spring.

Furthermore, it is proposed that the wet cleaning device comprises a displaceable cover element for form-matching in the circumferential direction of the cleaning roller completion of the cleaning roller and in particular the moistening and the stripping surrounding roller cover, wherein the cover member is adapted to selectively release an opening portion of the roller cover and / / or to close. The roller cover is along the entire Length of the cleaning roller is formed and surrounds the cleaning roller in the circumferential direction to the opening area preferably completely. The cover member serves as a shutter member to close the opening portion for a regeneration operation of the wet cleaning apparatus, so that liquid removed from the cleaning roller can not escape outside and contact a user of the wet cleaning apparatus. In addition, the situational closing of the opening area by means of the cover element also lends itself in the sense of drip protection during transport or a parking position of the cleaning appliance. In addition to the cleaning roller are advantageous in particular also the moistening device and the stripping device, particularly preferably formed as a common functional unit disposed within the roller cover. The roller cover is thus an outer encapsulation both for the cleaning roller and the entire liquid-conducting elements, so that the best possible shielding of the environment is provided before spraying or dripping liquid.

The cleaning roller is advantageously arranged displaceably relative to the roller cover on the wet cleaning device, so that the cleaning roller protrudes from the roller cover during a wiping operation of the wet cleaning device and can come into contact with a surface to be cleaned, and during a regeneration operation in the roller cover is shifted in and the opening area of the roller cover is closed by means of the cover element.

Advantageously, the roller cover can be completely separated from the housing of the wet cleaning device, whereby the stripping and / or the entire functional unit are also separated from the wet cleaning device. In addition, the stripping device or the Of course, functional unit also be separated from the roller cover.

It is proposed that the cover element has an operative connection with a displacement drive of the stripping device and / or the functional unit, such that the stripping device and / or the functional unit in a displacement of the cover element in the direction of a roller cover closing position on the cleaning roller is relocatable. As a result, for example, the displacements of the cover element and the stripping device / functional unit necessary for a regeneration operation of the wet cleaning device are carried out prior to carrying out the regeneration operation, in particular simultaneously, namely firstly closing the roller cover by means of the cover element and secondly displacing the stripping device in the direction the cleaning roller. The user of the wet cleaning device must therefore not actuate several actuators or switches before performing a regeneration operation. Rather, the closing of the roller cover causes a displacement of the stripping / functional unit, or vice versa. The cover element and the stripping device or the functional unit are advantageously connected to one another via a gear, for example via coupled gears.

Furthermore, it is proposed that the stripping device opens into a disposal channel for discharging the liquid into a liquid container. The stripping device is associated, for example, with a liquid collecting area for the liquid removed from the cleaning roller by means of the stripping device, which directly adjoins the disposal channel for discharging the liquid into the liquid container. The liquid stripped off or thrown off by the cleaning roller and / or or stripped dirt may thus enter directly into the discharge channel without being thrown around within the roll cover or the like.

Furthermore, it is proposed that the moistening device, in particular the common functional unit, has a distributor device with a plurality of outlet openings and / or a liquid feed line for feeding the moistening device with liquid. The moistening device serves to provide and distribute liquid. The distribution of the liquid over the length of the cleaning roller is advantageously carried out by a plurality of outlet openings, which allow a nearly homogeneous moistening of the cleaning roller along its longitudinal extent. The distributor may have, for a bare discharge openings or nozzles for applying liquid to the surface of the cleaning roller. The liquid supplied to the moistening device via the liquid feed line is advantageously under pressure, so that the liquid can be sprayed on the cleaning roller in small quantities and no complete wetting of the material of the cleaning roller takes place. The liquid supply line can be connected to a liquid container of the wet cleaning device. It is also proposed that the distribution device has a pointing in the direction of the cleaning roller air guide for conducting air in the direction of a disposal channel for discharging the liquid into a collecting container. The accelerated by the rotation of the cleaning roller air within the roller cover is passed through the louver in the direction of the discharge channel, so that a removal of the liquid is supported in the direction of the collecting container. The louver may advantageously have a plurality of air guide ribs on the outside of the distribution Having leinrichtung having which Luftleitrippen are aligned in the circumferential direction of the cleaning roller.

In addition to the previously described wet cleaning device, the invention also proposes a method for operating a wet cleaning device, in particular a previously described wet cleaning device, wherein liquid and / or dirt during a regeneration operation of a cleaning roller of the wet cleaning device is removed, with a relative to the cleaning roller displaceable scraper for a regeneration of the cleaning roller is placed on the cleaning roller, the cleaning roller is accelerated against a normal speed during a wiping operation of the wet cleaning device and thrown by the cleaning roller liquid and / or dirt and / or dissolved by the stripping Liquid and / or dirt collected and directed into a collection container. Furthermore, a method for operating a wet cleaning device is proposed, wherein liquid is applied by means of a moistening device on a rotatable cleaning roller, wherein a displaceable relative to the cleaning roller stripping device for moistening the cleaning roller is moved to the cleaning roller, wherein the Ab- Scraper is spaced from the cleaning roller, that the scraper touches only one end portion of the fibers of a cleaning surface of the cleaning roller, wherein the scraper directs fluid between the fibers during rotation of the cleaning roller.

In particular, the regeneration operation of the wet cleaning apparatus includes an acceleration of the cleaning roller, a placement of the scraper on the cleaning roller, a stripping of dirt and / or liquid by means of the stripping device and a radial centrifuging of liquid and / or dirt from the cleaning roller, collecting the liquid and the dirt and a discharge into a disposal channel for discharging the liquid or the dirt into a collecting container.

For sufficient moistening of the cleaning roller, for example before a wiping operation, the liquid supply or liquid distribution functions so that the stripping device, in particular the functional unit, is brought to the cleaning roller in such a way that the scraper device separates the fibers of a cleaning lining of the cleaning roller just touched. The speed of the cleaning roller is slowed down compared to the usual wiping operation, while the liquid passes through the functional unit, in particular a distributor, to a plurality of outlet openings and from there to the surface of the cleaning roller. The scraper pushes the liquid between the fibers of the cleaning roller, wherein the cleaning roller is advantageously moistened piece by piece in the circumferential direction during one or more complete revolutions. After completion of the moistening of the cleaning roller, the stripping device or the functional unit is further spaced from the cleaning roller, so that the cleaning roller runs freely. Subsequently, for example, a wiping operation of the wet cleaning device follow.

Basically, all such devices are to be understood in the context of the invention as wet cleaning devices, which can perform exclusively or inter alia, a wet cleaning. These include, on the one hand, hand-held and automatically movable wet cleaning devices, in particular also cleaning robots, and, on the other, combined dry and damp cleaning devices, which provide both a wet cleaning and a dry cleaning system. cleaning. In addition, in addition to the usual floor cleaning equipment for cleaning a floor and wet cleaning equipment for cleaning overground surfaces, meant in the context of the invention. These include, for example, devices for cleaning windows and the like.

BRIEF DESCRIPTION OF THE DRAWINGS In the following, the invention will be explained in more detail by means of exemplary embodiments. Show it:

1 shows an inventive wet cleaning device, a portion of the wet cleaning device with a functional unit according to the invention in a perspective broken view,

3 shows a cross section through the portion of the wet cleaning device according to Figure 2, the functional unit in an enlarged view,

FIG. 5 shows the partial area of the wet cleaning appliance according to FIG. 3 with the functional unit displaced toward the cleaning roller, a cleaning roller with a textile cleaning coating on contact with a stripping unit of the functional unit, FIG.

7 is a perspective view in a roller cover with a functional unit, 8 shows a bearing of the functional unit,

9 shows an actuating device for the functional unit,

10 is a plan view of the functional unit,

11 shows a plan view of the functional unit with the liquid supply broken away, FIG.

Fig. 12 is a plan view of the functional unit with broken represented distributor.

Description of the embodiments

FIG. 1 shows a wet cleaning device 1, which is embodied here as a handheld wet cleaning device 1 with a base device 20 and an attachment 21. The attachment 21 is detachably held to the base unit 20. The base unit 20 also has a handle 22, which is designed to be telescopic, for example, so that a user of the wet cleaning appliance 1 can adjust the length of the handle 22 to its body size. Furthermore, a handle 23 on which the user guides the wet cleaning device 1 during a typical wiping operation, that is, a handle 23, is arranged on the handle 22. H. can push over a surface to be cleaned. During the wiping operation, the user usually carries the wet cleaning device 1 in opposite directions of movement r over the surface to be cleaned. He pushes the wet cleaning device 1 alternately away from him or pulls this to himself.

The attachment 21 has a housing 8 in which a cleaning roller 2 is held. On the housing 8, a filler neck 19 is arranged through which liquid in a liquid tank (not shown) filled can be. The stored in the liquid tank water is used for external moistening of the cleaning roller. 2

The cleaning roller 2 is mounted rotatably about a roller axis 3 within the housing 8. During a wiping operation, the cleaning roller 2 rotates about the roller axis 3, so that the peripheral surface of the cleaning roller 2 unrolls continuously on a surface to be cleaned. The cleaning roller 2 is usually wrapped with a cleaning pad, optionally with the interposition of an additional liquid-storing sponge body. The cleaning pad is here, for example, a textile cleaning cloth, between the fibers as well as liquid can be absorbed.

During the wiping operation, dirt accumulates continuously on the cleaning roller 2, d. H. the cleaning surface, on. Therefore, after a certain period of operation, a regeneration of the cleaning roller 2 may be required, wherein during a regeneration operation dirt and dirt-contaminated liquid are removed from the cleaning roller 2.

Figure 2 shows a portion of the housing 8 of the attachment 21, in which the cleaning roller 2 is held rotatably about the roller axis 3. For better clarity, the portion of the housing 8 is shown broken, so that the internal features are recognizable. On the housing 8, a roller cover 12 is arranged, which surrounds the cleaning roller 2 at least over an angular range of approximately 180 degrees semicircular. The roller cover 12 is removable from the housing 8 of the wet cleaning device 1, so that optimum accessibility, for example for maintenance, is given. The roller cover 12, relative to the opposite circumferential side of the cleaning roller 2, viewed from below in FIG. 2, has an opening region 13, through which the cleaning roller ze 2 during a usual wiping operation with the surface to be cleaned can come into contact. During a regeneration operation, the cleaning roller 2 is displaced into the housing 8 and the roller cover 12 and the opening area 13 is closed with a cover element 11, so that a complete encapsulation of the cleaning roller 2 in the circumferential direction results.

In the area enclosed by the roller cover 12 region, a functional unit 6 is arranged, which has a humidifying device 4 and a stripping device 5. The functional unit 6 is a

Swivel axis 7 pivotally mounted in the housing 8 so that it can be pivoted relative to the surface of the cleaning roller 2, d. H. either to the cleaning roller 2 to or from the cleaning roller 2 away. In addition, the functional unit 6 is a displacement drive 10, here a gear as part of a transmission assigned, via which the entire functional unit 6 can be further removed by the cleaning roller 2, in particular for a wiping operation of the wet cleaning device 1, in which a sufficient Distance between the cleaning roller 2 and the functional unit 6 is required to ensure a completely free run of the cleaning roller 2. A cover drive 24 cooperating with the displacement drive 10 serves to displace the cover element 11.

The moistening device 4 serves for moistening the cleaning roller 2. The moistening device 4 has in detail a liquid feed line 17, a distributor device 15 and a plurality of outlet openings 16 (see FIG. 7). The liquid supply line 17 serves for the supply of liquid from a liquid container of the wet cleaning device 1 to the distribution device 15. The distribution device 15 is - as well as the total te functional unit 6 and thus also the moistening device 4 - along the entire lengthwise extension of the cleaning roller 2 is formed. The distribution device 15 essentially forms a liquid channel extending along the longitudinal extent of the cleaning roller 2, the channel wall of which has the plurality of outlet openings 16 for discharging liquid onto the cleaning roller 2. Advantageously, the liquid is pumped from the liquid container into the liquid feed line 17, so that the liquid in the distributing device 15 is under pressure and can be sprayed through the discharge openings 16 onto the surface of the cleaning roller 2. Depending on the distance between adjacent outlet openings 16, a fine spray mist which is homogeneous over the longitudinal extent of the cleaning roller 2 can thus be obtained, which leads to a uniform moistening of the cleaning roller 2. The outlet openings 16 are arranged in a subregion of the distributing device 15 which is directly adjacent to the cleaning roller 2, namely in FIG. 2 at the top right of the functional unit 6, above the stripping device 5.

In a position placed on the cleaning roller 2, during a regeneration operation of the wet cleaning device 1, the stripping device 5 can strip off liquid and dirt mechanically from the surface of the cleaning roller 2. The stripping device 5 is likewise formed over the entire length of the cleaning roller 2, so that it can strip off liquid and dirt from the cleaning roller 2 over the entire surface. By the rotation of the cleaning roller 2, this results in a complete cleaning of the peripheral surface of the cleaning roller 2. The stripped from the cleaning roller 2 liquid enters a arranged in the drawing below the stripping 5 disposal channel 14, which for example in a collecting container (not shown) empties. The removal of the liquid through or into the disposal channel 14 is by a on the functional unit 6, here on the distributor 15, arranged Air guiding device 18 is supported, which has a plurality of Luftleitrippen, which in the circumferential direction of the cleaning roller 2 show. The accelerated by the rotation of the cleaning roller 2 air is passed by means of the louver 18 in the direction of the disposal channel 14. The functional unit 6 is mounted on the one hand by means of a bearing 26 and on the other hand by means of an adjusting device 9 in the housing 8. The bearing 26 additionally connects the liquid supply line 17 with a liquid supply of the wet cleaning device 1. The adjusting device 9 serves to press the functional unit 6 to the cleaning roller 2. The adjusting device 9 has, as shown later in Figure 9, a spring 25 for pressing the functional unit 6, in particular the stripping device 5, on the surface of the cleaning roller 2.

Figure 3 shows a cross section of the portion shown in Figure 2 of the attachment 21. Recognizable is arranged on the housing 8 roller cover 12, in which the functional unit 6 is removably received. The facing in the direction of a surface to be cleaned opening portion 13 of the roller cover 12 is opened here, ie released from the displaceable cover member 11. The cover element 11 can be pivoted by means of the cover drive 24 into the opening area 13 or out of the opening area 13 of the roller cover 12. This cover drive 24 is coupled to the displacement drive 10 for the functional unit 6, so that simultaneously with the displacement of the cover element 11 into the opening area 13, a displacement of the functional unit 6 to the cleaning roller 2 takes place. The functional unit 6 is held by means of the pivot axis 7 pivotally mounted in the roller cover 12. Figure 4 shows the functional unit 6 in an enlarged view with the moistening device 4, the stripping device 5 and the disposal channel 14 for discharging the liquid collected by the stripping device 5. Figure 5 shows the portion of the attachment 21 of Figure 3 with zoomed to the cleaning roller 2 functional unit 6 and closed by the cover member 11 opening portion 13. This corresponds to the position of the functional unit 6 during a regeneration operation of the cleaning roller 2. The cleaning roller 2 is completely surrounded by the roller cover 12 and the cover element 11 in the circumferential direction.

Figure 6 shows an enlarged portion of Figure 5. The functional unit 6 is located with the stripping device 5 on the cleaning surface of the cleaning roller 2 at. The cleaning pad is an example of a textile covering with substantially radially projecting fibers. The fibers are here relative to the size of the cleaning roller 2 - for better visibility - not drawn to scale. The fibers have for example a length of 1 mm to 10 mm. In the Umf angs areas of the cleaning roller 2, which is currently applied to the stripping 5, the fibers are bent over and pressed against the cleaning roller 2. The cleaning roller 2 rotates in the figure counterclockwise. After passing through the stripping device 5, the fibers are raised again, since the stripping device 5 no longer rests against this peripheral region. During the return movement from the depressed to the erected position, liquid and / or dirt is ejected from the fibers and fed directly to the disposal channel 14. Figure 7 shows the roller cover 12 shown in Figure 2 with the functional unit 6 in a view from the bottom rear, ie viewed from a point on the surface of the cleaning roller 2 from. Shown are inter alia the bearing 26 and the adjusting device 9, via which the functional unit 6 is mounted about a pivot axis 7 in the roller cover 12. The bearing 26 is connected to the liquid supply line 17, which opens into the distributor 15 of the humidifier 4. Liquid can thus pass from a liquid tank through the bearing 26 into the liquid feed line 17 and from there into the distributor 15. The liquid can then escape through the outlet openings 16 of the distributor 15 in the direction of the cleaning roller 2.

Under the outlet openings 16 (based on the illustration of Figure 7), the stripping device 5 is arranged. During a regeneration operation of the wet cleaning device 1, the stripping device 5 presses against the surface of the cleaning roller 2 and brushes liquid or

Dirt from the cleaning roller 2 from. The liquid or the dirt can flow directly into the disposal channel 14 adjacent to the stripping device 5 and reach, for example, a collecting container of the wet cleaning device 1. For the purpose of maintenance or cleaning, the functional unit 6 can be removed from the roller cover 12. After, for example, a cleaning of the functional unit 6, it can then be re-inserted into the roller cover 2 by the pivot axis 7 of the functional unit 6 in the bearing 26, which is designed as a rotary feedthrough, is inserted. Subsequently, the functional unit 6 is pivoted, for example, about the bearing 26, so that the adjusting device 9 can also be introduced as an abutment in the roller cover 12. The adjusting device 9 is then locked. The roller cover 12 can then be connected to the housing 8 of the attachment 21, wherein the functional unit 6 is advantageously shifted to a position corresponding to a wiping operation of the wet cleaning device 1. The disassembly of the functional unit 6 from the roller cover 12 is carried out in the reverse order. First, the roller cover 12 is separated from the housing 8 of the attachment 21. Subsequently, the adjusting device 9 is unlocked and the functional unit 6 swung out. The pivot axis 7 of the functional unit 6 can then be pulled out of the bearing 26. Figure 8 shows the bearing 26 for receiving the pivot axis 7 of the functional unit 6. The bearing 26 provides a rotary feedthrough for the liquid supply 17 and has for sealing sealing elements 27, here for example a shaft seal and an O-ring. As a result, a liquid line of the wet cleaning device 1 can be connected in a liquid-tight manner to the liquid feed line 17 swiveled with the functional unit 6.

Figure 9 shows the adjusting device 9, which is arranged on the bearing 26 opposite end side of the pivot axis 7. The adjusting device 9 has a spring 25, which exerts a restoring force on the illustrated end region of the functional unit 6. The restoring force of the spring 25 acts in the direction of the cleaning roller 2, so that the spring 25 seeks to pivot the functional unit 6 in the direction of the cleaning roller 2.

Figures 10 to 12 show the functional unit 6 in a view from above, the figures 11 and 12 are shown broken away from each other in different levels or sub-areas. FIG. 10 shows, in particular, the distribution device 15, which on the upper side shown has the air guiding device 18 with a plurality of air guiding ribs. Under the distribution device 15 is the disposal channel 14, through which by means of the stripping device 5 from the cleaning roller 2 stripped liquid or stripped dirt to a

Collecting can reach. This is supported by the air guided by means of the louver 18 in the direction of the disposal channel 14 and swirled by the rotation of the cleaning roller 2 air. Furthermore, the adjusting device 9 as well as a partial region of the liquid feed line 17 can be seen. FIG. 11 shows the course of the liquid feed line 17 within the functional unit 6 to the distributing device 15 of the moistening device 4.

FIG. 12 shows a broken view in the region of the distributor device 15, wherein the ventilation device 18 is partially cut open. Visible are the outlet openings 16 of the distributing device 15, through which the liquid from the moistening device 4 can be sprayed onto the cleaning roller 2.

The functional unit 6 can now be used according to the invention both for moistening the cleaning roller 2 before a wiping operation of the wet cleaning device and for a regeneration of the cleaning roller 2.

During a wiping operation of the wet cleaning device 1, the functional unit 6 is usually completely spaced from the cleaning roller 2 by means of the displacement drive 10, so that there is no contact between the stripping device 5 of the functional unit 6 and the surface of the cleaning roller 2. The previously moistened cleaning roller 2 can move freely over a surface to be cleaned. In the course of the wiping operation, dirt removed from the surface to be cleaned is deposited on the surface of the cleaning roller 2, in particular in a cleaning surface of the cleaning roller 2, so that regeneration of the cleaning roller 2 is recommended after a certain period of operation in order to achieve the best possible wiping result ,

For the regeneration operation, the opening portion 13 of the roller cover 12 is closed by means of the cover member 11, so that there is a complete enclosure for the cleaning roller 2 in the circumferential direction. Since the cover drive 24 is in operative connection with the displacement drive 10 of the functional unit 6, with the displacement of the cover member 11 at the same time the functional unit 6 is pivoted to the cleaning roller 2 until the stripping device 5 against the Rei - Nigungswalze 2 presses, in addition, the spring 25 of the adjusting device 9 provides the necessary contact pressure and creates a tolerance compensation for the rotary cleaning roller 2. The cleaning roller 2 is greatly accelerated, that is rotated at a speed which is higher than the speed during the wiping operation of the wet cleaning device 1. During the rotation of the cleaning roller 2 liquid and / or dirt is stripped from the cleaning roller 2 and / or of the Cleaning roller 2 thrown off. The liquid and / or the dirt reach the disposal channel 14 arranged directly next to the stripping device 5 and flow out of the functional device 6 in the direction of a collecting container due to the acting gravity. The accelerated by the rotation of the cleaning roller 2 air is passed through the Luftleitrippen the louver 18 additionally direction disposal channel 14 and thereby supports the removal of the liquid or the dirt. For a renewed supply of water and distribution of water on the surface of the cleaning roller 2, the functional unit 6 zoom heranverlagert to the cleaning roller 2 that the stripping 5 just, for example, with an overlap region of a maximum of 1 mm, the fibers of the cleaning surface of the cleaning roller 2 touches , The cleaning roller 2 is rotated at a reduced speed compared to the speed during a wiping operation. Then, liquid, optionally with the addition of a cleaning additive, sprayed onto the cleaning roller 2, wherein the liquid is pressurized within the humidifier 4 and is sprayed out of the outlet openings 16. The moistening device sprays, for example, from a distance of 5 mm to 10 mm on the surface of the cleaning roller 2. The liquid wets the surface of the cleaning roller 2, wherein the stripping device 5 presses the liquid between the adjacent fibers of the cleaning surface of the cleaning roller 2. The liquid is applied during the continued rotation of the cleaning roller 2 within one or more complete rotations of the cleaning roller 2 about the roller axis 3 piece by piece and distributed until the cleaning roller 2 is completely moistened. Subsequently, the functional unit 6 is removed from the cleaning roller 2, the roller cover 12 is opened and prepared for a wiper operation cleaning roller 2, for example, lowered back to the surface to be cleaned. During the subsequent wiping operation, the cleaning roller 2 then picks up dirt again from the surface to be cleaned. List of reference numbers

1 wet cleaning device 26 bearings

2 cleaning roller 27 sealing element

3 roll axis

4 moistening device

5 stripping device

6 Function unit r Direction of movement

7 pivot axis

8 housing

9 adjusting device

10 displacement drive

11 cover element

12 roller cover

13 opening area

14 disposal channel

15 distribution device

16 outlet opening

17 fluid supply

18 louver

19 filler neck

20 base unit

21 attachment

22 stalk

23 handle

24 cover drive

25 spring

Claims

claims

1. wet cleaning device (1), in particular wet wiper, with a about a roll axis (3) rotatable cleaning roller (2) and a moistening device (4) for applying a liquid to the cleaning roller (2), characterized in that the wet cleaning device (1) a to the cleaning roller (2) displaceable scraper (5), in particular a scraper lip, for assisting the removal of liquid and / or dirt from the cleaning roller (2) and / or for supporting the application of liquid to the cleaning roller (2).

2. wet cleaning device (1) according to claim 1, characterized in that the moistening device (4) and the stripping device (5) are parts of a common functional unit (6).

3. wet cleaning device (1) according to claim 1 or 2, characterized in that the stripping device (5) and / or the functional unit (6) about a parallel to the cleaning roller (2) arranged pivot axis (7) pivotally mounted on a housing (8) of the wet cleaning device (1) are mounted, wherein the stripping device (5) and / or the functional unit (6) are acted upon in particular by a directed in the direction of the cleaning roller (2) spring force.

4. wet cleaning device (1) according to any one of the preceding claims,

characterized in that associated with the stripping device (5) and / or the functional unit (6) is a displacement drive (10) which is designed to receive the stripping device (5) and / or the functional unit (6) relative to the cleaning roller (2) relocate. Moist cleaning device (1) according to any one of the preceding claims, characterized in that the wet cleaning device (1) a displaceable cover element (11) in the circumferential direction of the cleaning roller (2) form-complementary completion of a cleaning roller (2) and in particular also the moistening device (4) and the wiper device (5) comprises surrounding roller cover (12), wherein the cover element (11) is designed to selectively release and / or close an opening region (13) of the roller cover (12).

Wet cleaning device (1) according to claim 5, characterized in that the cover element (11) has an operative connection with a displacement drive (10) of the stripping device (5) and / or the functional unit (6), such that the stripping device (5) and / or the functional unit (6) can be displaced toward the cleaning roller (2) during a displacement of the cover element (11) in the direction of a position closing the roller cover (12).

Moist cleaning device (1) according to one of the preceding claims, characterized in that the stripping device (5) opens into a disposal channel (14) for discharging the liquid into a liquid container.

Moist cleaning device (1) according to one of the preceding claims, characterized in that the moistening device (4), in particular the common functional unit (6), a distributor device (15) with a plurality of outlet openings (16) and / or a liquid supply line (17) Supplying the humidifying device (4) with liquid.

9. wet cleaning device (1) according to claim 8, characterized in that the distribution device (15) in the direction of cleaning roller (2) facing louver (18) for conducting air in the direction of a disposal channel (14) for discharging the liquid in one Has liquid container.

10. A method for operating a wet cleaning device (1), in particular a wet wiping device, wherein liquid and / or dirt during a regeneration operation of a cleaning roller (2) of the wet cleaning device (1) is removed, characterized in that a relative to the cleaning roller (2) displaceable scraper (5) for regeneration of the cleaning roller (2) is placed on the cleaning roller (2), the cleaning roller (2) is accelerated to a conventional speed during a wiping operation of the wet cleaning device (1) and the cleaning roller (2) thrown off liquid and / or dirt and / or by the stripping device (5) dissolved liquid and / or dirt collected and passed into a collection container.

11. A method for operating a wet cleaning device (1), in particular method according to claim 10, wherein liquid by means of a moistening device (4) on a rotatable cleaning roller (2) is applied, characterized in that a relative to the cleaning roller (2) displaceable scraper ( 5) for wetting the cleaning roller (2) is displaced to the cleaning roller (2), wherein the stripping device (5) from the cleaning roller (2) is spaced, that the stripping device (5) only one end portion of the fibers of a cleaning coating the cleaning roller (2) touches, wherein the stripping device (5) upon rotation of the cleaning roller (2) passes liquid between the fibers.