EP2774522B1 - Wet cleaning device, in particular window cleaning device - Google Patents

Description

The invention relates to a wet cleaning device, in particular window cleaning device.

Such devices are known, so on, in particular for use in the household sector, more particularly for the wet cleaning of smooth surfaces, such as windows.

The document US 5,328,833 A discloses, for example, a multifunctional glass cleaning apparatus having a wiping surface and a grip portion for gripping the apparatus by a user. The wiping surface is associated with an elongated suction opening, wherein an extension direction of the handle region is aligned with the course of the suction opening. The grip area is based on a usual operating position of the device behind the suction opening and the wiping surface.

The document US 2003/0208873 A1 discloses a glass cleaning machine with a wiping roller to be placed on a surface to be cleaned. An elongate suction opening is formed parallel to a rotation axis of the wiping roller. Furthermore, the glass cleaning machine has a handle, which is arranged downstream of the suction opening and the wiping roller relative to a forward direction of the machine.

In view of the known prior art, a technical problem of the invention is seen in a wet cleaning device of the type in question in handling-favorable design to further improve.

A possible solution to the problem is given according to a first inventive idea in a wet cleaning device, in particular window cleaning device, in which in particular a trained at the same time for moisture application, is set down substantially rectangular wiping surface, and a handle to be gripped by hand, and an elongated suction, wherein the is rigidly connected to the wiping surface gripping area in vertical overlap to the wiping surface is formed and the suction opening extends along a longitudinal edge of the wiper surface, wherein further an extension direction of the handle portion is aligned with a course of the suction opening. As a result of this embodiment, a wet cleaning device designed in particular with a favorable handling is specified. This offers in particular for window cleaning an ergonomic handling, with effective wet cleaning of the area. The liquid to be applied to the surface to be cleaned via the wiping surface is, optionally with dirt particles, taken up via the suction opening preferably following in the direction of displacement of the device on the surface to be cleaned of the wiping surface and thus removed from the surface to be cleaned. Preferably, this is a hand-held device, more particularly a directly to be led by hand device. The gripping area formed for this purpose, ie the device area to be gripped by the hand to be held and leading, lies at least partially, more preferably at least more than 50 percent or more, in a vertical overlap with the wiping area, of a plane parallel to the wiping area. Correspondingly, the grip region extends at least partially in a space parallel extending parallel to the wiping surface or in a family of parallel planes, which parallel surfaces in a projection perpendicular to this parallel surface inside the surface defined by the wiping surface lies. In this regard, it is preferably an elongate rectangular wiping surface having a preferred longitudinal extent, which corresponds to 2 to 6 times, more preferably 3 to 5 times, the narrow side extent.

The device makes it possible to directly absorb the liquid applied to the surface to be cleaned via the wiping surface, in particular after the device has been displaced in the direction of displacement, so preferably by suction of the liquid, which is mostly contaminated, from the surface to be cleaned. For this purpose, in a preferred embodiment, the suction opening is nozzle-like, this with an overall elongated configuration along the longer peripheral edge of the wiping surface, which longer peripheral edge is further preferably oriented transversely to a conventional direction of displacement of the hand-held device. The elongate suction opening further preferably extends parallel to an acute angle of more than 0 ° up to 10 ° to the longitudinal edge of the wiping surface, this further preferred, based on a resting on the surface to be cleaned by the wiping surface or by the processing Surface of the wiping area given plan.

The direction of displacement of the wet cleaning device is preferably selected transversely to the longitudinal extent thereof. In a design of the wet cleaning device as a window cleaning device is a common direction of displacement, for example, from top to bottom or from left to right or right to left.

Further features of the invention are hereinafter, also in the description of the figures, often in their preferred association with the subject of the claim 1 or explained features of further claims. But they can also be in an assignment to only individual features of claim 1 or the respective further claim or each independently of importance.

Thus, it is provided in a further preferred embodiment that the wet cleaning device has a fresh water tank and preferably a dirty water tank. The fresh water tank is preferably filled with water to which a cleaning agent is added in order to use the device. The amount of fresh water is further preferably selected so that with a filling of the fresh water tank, an area of 10 to 30 m ² , more preferably 20 m ^{2 is} cleanable. More preferably, the fresh water tank has a receiving volume of 50 to 150 ml, more preferably about 100 ml. The waste water tank can be adapted to the volume of the fresh water tank, thus at least designed to receive the water discharged from the fresh water tank and taken up again via the suction water.

More preferably, the fresh water tank and / or the recovery tank from the wet cleaning device can be removed. The fresh water tank is for example removable for filling the same; the recovery tank corresponding to the emptying. The determination of fresh water tank and / or waste water tank in or on the device is preferably possible due to a latching and / or further example, according to a slide-in displacement. In an advantageous embodiment, the removal of the fresh water and / or dirty water tanks is only intentionally under the repeal of a backup, such as locking, possible. Accordingly, further in the operation of the device water-bearing interfaces between the respective tank and the device provided, in which interface region more preferably a seal is provided.

Aligned to the extension direction of the handle portion is provided in a further preferred embodiment, that in succession an electric motor with fan, the dirty water tank and / or the fresh water tank and / or an accumulator are arranged. According to this embodiment, the arrangement of the essential device components adapted to the overall preferred elongated configuration of the device. During operation of the device, the electric motor drives a fan for applying a suction air flow guided through the suction opening. The electric motor is preferably fed by an accumulator provided in the device or a plurality of such accumulators. In this regard, it is preferably provided that one or more accumulators are designed for a working time of the device of 15 to 45 minutes, more preferably about 30 minutes, more preferably for possible cleaning of preferably 10 to 25m ² , more preferably about 17 m ² area.

In this aforementioned series arrangement, in particular of electric motor with blower and recovery tank, a water separator is provided in a further preferred embodiment, which deposits moisture particles before passing through the electric motor by the suction air flow into the recovery tank.

Also, the suction and / or discharge direction of the fan is preferably aligned in the extension direction of the grip area. Accordingly, the suction and / or discharge direction is preferably transverse to a conventional direction of displacement of the device.

The fresh water tank preferably delivers into a distribution reservoir which extends over and in excess of half or more of the wiping surface. It is thus preferably achieved a surge dosage. This means in a preferred embodiment that the stored in the fresh water tank cleaning liquid at the beginning of the cleaning at a time, more preferably completely output into the distribution reservoir and is not transported during the cleaning continuously in the direction of the wiping surface. The distribution reservoir extends in a preferred embodiment, at least with respect to a reservoir bottom surface above the wiping surface, more preferably with projection of the reservoir bottom in the direction of the plane given by the wiping surface in coverage to this. More preferably, the surface of the reservoir bottom that is more preferably aligned parallel to the wiping surface corresponds to 50 percent or more up to 100 percent of the size of the wiping surface.

In a preferred embodiment, the distribution reservoir opens via a multiplicity of mouth openings to a wiping element forming the wiping surface. Preferably, the mouth openings are provided in the region of the reservoir bottom, which floor further preferably at the same time represents a partition between the reservoir and the wiper element. In this regard, more preferably 5 to 15 mouth openings, in particular 10 mouth openings are provided. These are further preferably evenly distributed over the surface, in particular distributed over the reservoir bottom surface and further preferably have a circular floor plan, and a preferred diameter of 2 to 4 mm, more preferably 3 mm. According to this refinement, when the amount of detergent provided in the fresh water tank is about 60 ml, impregnation of the wiping element via the Distribution reservoir after about 20 to 40 seconds, more preferably reached about 30 seconds.

The wiping element is preferably a wipe, in particular a wiper made of a microfiber material. Such microfiber cloths are characterized by a mostly streak-free cleaning of surfaces, in particular glass surfaces. Furthermore, such microfibre cloths provide a good removal of dirt from the surface to be cleaned.

In a further preferred embodiment, an end face of the wet cleaning device is designed as a base. This end face is preferably a surface aligned transversely to the longitudinal edge of the wiping surface, as viewed with respect to the plan of the wiping surface, which further preferably extends substantially perpendicular to the wiping surface, further optionally at an acute angle of up to 30 ° to a vertically extending surface. This end face is designed so that a shutdown of the device or the device can be reached on this face, in which Abstellstellung example, a filling of the fresh water tank is possible, more preferably without water enters the distribution reservoir in this position from the fresh water tank. Such an overflow into the distribution reservoir is preferably only achieved when the device is pivoted from this storage position into the use position. For this purpose, the end face is further preferably formed planar, so further preferably at least over a, the stability bidding area.

Relative to a cross-section transverse to the direction of extension of the grip region, in a further preferred embodiment, the suction opening and the dirty water tank and / or the fresh-water tank are arranged opposite one another. The extent of the grip region corresponds in this context and also generally concerning the invention to a longitudinal extension of the grip region. Overall, this results in a compact and easy-handling arrangement. The suction opening is arranged according to preferred in the usual direction of displacement of the device behind the recovery tank and / or fresh water tank. Preferably, at least one tank, more preferably both tanks are arranged transversely to the longitudinal extent of the handle area approximately centrally disposed in the device, further preferably according to fingernail positioned so that the user operating the device must apply almost no moment from the wrist if he has a surface cleans with the device.

It is also preferred that the wiping element, based on the cross section starts at a distance from the suction opening. Thus, in the usual direction of displacement of the device between the suction edge facing the longitudinal edge of the wiper element and the suction leaving a gap, which distance preferably one fifth to one twentieth of the width considered transverse to the longitudinal extension of the wiper element, more preferably about one-tenth.

The suction opening is preferably arranged with respect to the vertical cover outside the grip area. As a result, an ergonomically favorable handling of the device is achieved, in particular for cleaning or suction of edge surface areas. The device can thus be tilted with further placement of the suction opening on the surface to be cleaned via the grip area about a preferably substantially parallel to the longitudinal extent of the grip area extending parallel axis.

In addition, it is preferred that the suction opening is formed by two in cross-section V-shaped extending boundary parts. This results in a total nozzle-like suction, wherein viewed in cross section has a V-tip of the mutually extending boundary parts in the direction of the surface to be cleaned. Accordingly, the suction opening is formed in the region of the V-tip.

One or both limiting parts are preferably designed as flexible lip parts, so more preferably in the form of rubber lips. A, in particular designed as Abziehlippe boundary part here includes in the state of use preferably an angle of 50 to 70 °, more preferably 60 ° to the surface to be cleaned. This prevents banding. In order to achieve high flow velocities, in particular over the entire length, the suction opening is delimited by the second delimiting part in the form of a flexible lip, which lip preferably has a tooth contour.

The preferably cloth-like wiping element is also preferably arranged detachably on a flat carrier region. In a further preferred embodiment, this areal carrier area is at the same time the floor area of the distribution reservoir.

The carrier region further preferably has a free-standing position relative to the cross-section on the side facing away from the suction opening, correspondingly preferably projecting freely at least over the housing region of the device formed thereon.

The free-standing position is preferably formed to wrap around the wiper element. The wiping element is preferably fastened to the carrier region via a Velcro connection, wherein a width of the wiping element considered transversely to the longitudinal extent is preferably selected to be greater than the width of the carrier region considered in the same direction. In the case of a preferred edge-like arrangement of the wiping element on the carrier area-based on the longitudinal edge facing the suction opening-there is a projection of the wiping element facing away from this longitudinal edge, which projection is folded over the freestanding area of the carrier area, so that correspondingly a section of the wiping element on the top, the cleaning of the surface serving wiping surface opposite, is arranged. In particular, this wiping element envelope is used advantageously for cleaning corner areas and / or for dissolving stubborn dirt on the surface to be cleaned.

According to one or more of the features described above, a window cleaning device is provided, by means of which, preferably in one operation and without encompassing by guiding the device over the surface, a cleaning thereof can be achieved. In this case, the cleaning agent is applied at the same time and sucked off in the course of the displacement of the device.

Preferably, the entire device weight is arranged in the immediate vicinity of the grip area, which allows ergonomically favorable operation of the device, in particular one-handed operation.

Thanks to its compact design, cleaning close to the edge, eg near walls, window sills, etc., is possible.

The support surface (wiping surface) of more preferably 280 x 60 -100 mm offers a high resistance to tipping when guiding the device over the surface to be cleaned.

Due to the relative to each other rigid arrangement of wiping surface and boundary parts (rubber lips) defines the support of the device on the surface to be cleaned the angle of the boundary parts and an optionally maximum deflection of one or both, preferably rubbery flexible boundary parts.

The longitudinal length of one or both limiting parts is preferably selected to be one-hundredth to five hundredths greater than the length of the wiping surface considered in the longitudinal extension. Thus, it is further preferred to provide a length of the limiting parts which corresponds to the corresponding length of the suction opening plus 2 to 5 mm on each side.

The distance between the center of gravity of the device and the grip area is kept small, preferably <40 mm, as is the distance between the center of gravity and the wiping surface and thus to the surface to be cleaned, preferably 40 to 90 mm.

The distance between the suction opening and the facing longitudinal edge of the wiper element is in a further preferred embodiment 0 to 8 mm.

With regard to the disclosure, the ranges or value ranges or multiple ranges given above and below also include all intermediate values, in particular in 1 / 10th increments of the respective dimension, if necessary that is to say also dimensionless, in particular 1.01-tray etc., on the one hand for delimiting the mentioned range limits from below and / or above, alternatively or additionally but also with regard to the disclosure of one or more singular values from the respective specified range.

Fig. 1

in perspektivischer Darstellung eine Feuchtreinigungsvorrichtung einer ersten Ausführungsform;

Fig. 2

den schematischen Längsschnitt durch die Feuchtreinigungsvorrichtung gemäß der Linie II-II in Figur 1;

Fig. 3

einen Querschnitt durch die Feuchtreinigungsvorrichtung gemäß der Linie III-III in Fig. 1;

Fig. 4

die Feuchtreinigungsvorrichtung in perspektivischer Darstellung, eine Abstell- beziehungsweise Wartungsstellung der Vorrichtung betreffend;

Fig. 5

in schematischer Darstellung einen Frischwassertank der Vorrichtung sowie ein zugeordnetes Verteilungsreservoir, die Befüllstellung des Tanks betreffend;

Fig. 6

eine Darstellung gemäß Figur 5, jedoch die Stellung von Tank und Verteilungsreservoir in Benutzungsstellung der Vorrichtung betreffend;

Fig. 7

in perspektivischer Darstellung die Feuchtreinigungsvorrichtung während der Anwendung zur Abreinigung einer Fensterscheibe, bei Ansetzen der Feuchtreinigungsvorrichtung in einem vertikal oberen Bereich der Scheibe;

Fig. 8

eine der Figur 7 entsprechende Darstellung, jedoch mit Bezug auf die Fensterscheibe die vertikal unterste Arbeitsstellung der Feuchtreinigungsvorrichtung bei Absaugen des entsprechenden Fensterrandbereiches betreffend;

Fig. 9

die Feuchtreinigungsvorrichtung in einer zweiten Ausführungsform;

Fig. 10

die Seitenansicht hierzu;

Fig. 11

die Feuchtreinigungsvorrichtung gemäß Figur 9 in einer ersten Arbeitsstellung;

Fig. 12

eine der Figur 11 entsprechende Darstellung, jedoch eine zweite Arbeitsstellung bei Erreichen einer vertikal untersten Position auf der abzureinigenden Fläche;

Fig. 13

eine der Figur 8 entsprechende Darstellung, betreffend die zweite Ausführungsform.

The invention is explained below with reference to the accompanying drawing, which illustrates only exemplary embodiments. A part that is explained only with reference to one of the embodiments and is not replaced in another embodiment due to the special feature there (not) replaced by another part, is thus described for this further embodiment as possible anyway existing part. On the drawing shows:

Fig. 1

in perspective view of a wet cleaning device of a first embodiment;

Fig. 2

the schematic longitudinal section through the wet cleaning device according to the line II-II in FIG. 1 ;

Fig. 3

a cross section through the wet cleaning device according to the line III-III in Fig. 1 ;

Fig. 4

the wet cleaning device in a perspective view, a parking or maintenance position of the device concerning;

Fig. 5

a schematic representation of a fresh water tank of the device and an associated distribution reservoir concerning the filling position of the tank;

Fig. 6

a representation according to FIG. 5 but the position of tank and distribution reservoir in the position of use of the device concerning;

Fig. 7

in perspective view of the wet cleaning device during the application for cleaning a window, when applying the wet cleaning device in a vertically upper portion of the disc;

Fig. 8

one of the FIG. 7 corresponding representation, however, with respect to the window pane concerning the vertically lowest working position of the wet cleaning device with suction of the corresponding window edge area;

Fig. 9

the wet cleaning device in a second embodiment;

Fig. 10

the side view to this;

Fig. 11

the wet cleaning device according to FIG. 9 in a first job;

Fig. 12

one of the FIG. 11 corresponding representation, but a second working position when reaching a vertical lowermost position on the surface to be cleaned;

Fig. 13

one of the FIG. 8 corresponding representation, relating to the second embodiment.

Shown and described is first with reference to FIG. 1 a wet cleaning device 1, in particular window cleaning device, for the wet cleaning of surfaces, more particularly of smooth surfaces, such as windows or the like.

The device 1 initially has a housing 2 with a housing wall 3. This housing wall 3 overhangs a device base 4 in the manner of a vault. The housing 2 is closed laterally by end walls 5, 6 which are preferably integrally formed with the housing wall 3 and of uniform material.

The wet cleaning device 1, more preferably the housing 2 of the device 1, is elongated, with a substantially elongated rectangular base surface of the device base 4. Thus, the device 1 preferably has a length 1 of 220 to 280 mm and a width considered perpendicular thereto b from 60 to 100 mm.

Overall, this is an at least approximately elongated, cylindrical, more preferably semi-cylindrical or barrel-shaped embodiment of the device 1 given.

The device height h essentially corresponds approximately to the dimension of the width b, more preferably 0.8_ to 1.2 times the width b.

This is preferably a plastic housing, more preferably a housing manufactured by the plastic injection method.

Preferably, in the middle with respect to the longitudinal extent of the device 1, the housing 2 is formed into a handle region 7. This extends substantially over about half the extension length, is further formed in particular by a waist-like constriction of the housing 3. The handle portion 7 is ergonomically designed to grip the device 1 by a hand, more preferably for one-handed guidance of the device 1 in the course of a wet cleaning.

The device 1 is suitable both for applying a liquid to a surface 8 to be cleaned off and for resuming the liquid.

For this purpose, a fresh water tank 9 is initially provided in the housing 2. This serves to receive a cleaning liquid, in particular for receiving added with detergent fresh water.

The fresh water tank 9 is in the in the FIGS. 1 to 8 illustrated first embodiment arranged laterally next to the handle portion 7, more preferably between the handle portion 7 and an end wall. 5

In a preferred embodiment, the fresh water tank 9 is removed from the housing 2, so in particular for filling the fresh water tank 9. For this purpose, the fresh water tank 9 is guided in a non-illustrated rail training of the housing 2, wherein preferably the operating position of the fresh water tank 9, ie the used position thereof, secured, for example, is rest assured. In the illustrated embodiment, a wall portion 10 of the fresh water tank 9 forms the ceiling portion of the housing wall 3 in the region of the housing opening 11 for receiving the fresh water tank. 9

Further preferably associated with the fresh water tank side region, two accumulators 12 are positioned in the housing 2. In this regard, it may also be the arrangement of only one accumulator or more than two Ackumulatoren.

The one or more accumulators 12 are used to supply an electric motor 13, for driving a fan 14. This blower 14 is further associated with a separator 15, further provided in particular a centrifugal separator.

Electric motor 13, blower 14 and separator 15 are further preferably arranged on a common geometric axis, which axis preferably extends in space parallel to a longitudinal edge of the housing 2. More preferably, the electric motor 13, the blower 14 and the separator 15 are arranged in the side region facing away from the fresh water tank 9 between the grip region 7 and the end wall 6.

More assigned to the central portion of the housing 2, more preferably covered by the handle portion 7 and lying in the projection region of the handle portion 7 on the device bottom 4 a dirty water tank 16 is provided. This is used to hold the over the blower 14 from the surface to be cleaned 8 again recorded, mostly dirt or dust particles prone cleaning liquid.

In a preferred embodiment, the dirty water tank 16 is removable from the housing 2, more preferably according to the embodiment with respect to the fresh water tank 9. Thus, the dirty water tank 16 is preferably locked in its use position in the housing 2.

From the separator 15, a liquid line 17 leads to the waste water tank 16, wherein in the region of the interface between the waste water tank 16 and in the inserted state of a filling opening 18 of the dirty water tank 16 facing housing wall a seal, not shown, is provided for the corresponding sealing connection of the liquid line 17 the filling opening 18.

On the underside of the device base 4 facing the wiping surface 19 described in more detail below, a planar carrier region 20 is formed at a distance from the device bottom 4. This support region 20 forms especially outside, i. facing away from the device bottom 4 a preferably flat surface, which extends substantially over the entire length 1 and the width b of the wet cleaning device 1.

With reference to a cross section as shown in FIG FIG. 3 The carrier region 20 at one end, assigned to a longitudinal edge edge of the device 1, forms a free-standing position. This protrusion, which is preferably formed together with the region of the device base 4 arranged above it, is provided with the reference numeral 21.

The supernatant 21 projects correspondingly over an opening on the device bottom 4 edge contour of the housing 3 free. As further in particular from the representation in the FIG. 3 1, a region of the housing wall 3 extending at a perpendicular distance from the device base 4 extends with respect to a vertical projection onto the device base 4 or onto the carrier region 20 in overlap with the projection 21.

The space which results between the carrier region 20 and the device bottom 4 is preferably enclosed on all sides to form a distribution reservoir 22. This is connected to the fresh water tank 9 via a supply line 23, which opens the device bottom 4 into the reservoir 22. Accordingly, the end of the supply line 23 facing away from the reservoir 22 is connected to an overflow opening 24 of the fresh water tank 9.

This connection is to enable the removal of the fresh water tank 9 from the housing 2 solvable. Preferably, a seal is provided in the region of the interface, which encloses the overflow opening 24 when the fresh water tank 9 is inserted.

On the underside of the carrier region 20, a wiping element 25 is preferably arranged in the form of a microfiber cloth. This wiping element 25 is further preferably connected via a Velcro connection releasably connected to the carrier region 20.

The wiping element 25 has a length which corresponds to the length of the wet cleaning device 1 and thus preferably the length of the carrier region 20. The width of the wiping element 25 considered transversely thereto is preferably selected to be greater than the width b of the device 1 and thus the preferred width of the carrier region 20. Thus, a width excess of the wiping element 25 which corresponds to one tenth to two tenths of the width b is preferred preferably 10 to 20 mm. This correspondingly free-lapping region of the wiper element 25 is preferably wound over the entire length of the carrier region 20 around the projection 21, for the preferred attachment on the top of the cantilevered portion of the device bottom 4.

Further with reference to the cross section according to FIG. 3 is opposite to the supernatant 21, a suction opening 26 is provided. This, too, preferably extends over the entire length 1 of the device 1.

The suction opening 26 is further preferably formed by two cross-sectionally V-shaped boundary parts 27 and 28 in the form of rubber lips. Correspondingly limit the limiting members 27 and 28 in the direction of a given in particular by the wiping element 25 working plane suction opening 26 and a subsequent thereto Saugkanalabschnitt 29. The latter is connected via a suction line 30 to the fan 14 in terms of flow.

The suction opening 26 is further spaced with respect to the plane defined by the wiper element 25 and the support plane thereof transversely to the longitudinal extent of the device 1, wherein preferably a distance of 5 to 15 mm, more preferably 8 mm is given.

The longitudinal wall 31 of the housing wall 3 facing the suction opening 26 is set at an acute angle to a vertical with respect to a plane formed by the underside of the wiping element 25, more preferably an acute angle to a vertical of 10 to 20 °, more preferably 15 ° inclining, this further preferably in an inclination of the longitudinal wall 31 tends towards the supernatant 21. It follows further that the suction opening 26 relative to the vertical

Cover with respect to the wiping surface 19 outside the handle portion 7 is located.

The outer boundary part 27 serves in operation of the device 1 as Abziehlippe. This takes an angle of about 60 ° to the surface 8 to be cleaned off. The inner boundary part 28 further preferably has a tooth contour, is accordingly preferably over the length viewed only partially on the surface 8 to be cleaned.

Due to the substantially rigid combination of wiping element 25 and delimiting parts 27, 28, a wrong angle of attack, in particular of the delimiting part 27 to the surface 8, is excluded.

In order to ensure the transport of liquid from the surface 8 in the direction of the fan 14 in each working position of the device 1 during operation, the suction line 30 is preferably formed with a maximum flow area of 150 mm ² , this at a preferred flow rate of about 3.5 up to 4.5 l / s.

The grip portion 7 of the first embodiment according to FIGS FIGS. 1 to 8 is formed by ergonomically favorable recesses or free cutting in the area of the housing walls 3.

In the in the FIGS. 9 to 13 illustrated second embodiment, the handle portion 7 is formed for penetration, correspondingly forms a preferably circumferentially released, cylindrical or elliptical handle, which viewed in the longitudinal direction at both ends enters the housing 2. It is given a total of a dumbbell-shaped embodiment of the device 1.

The grip region 7 is more preferably independent of the embodiment in the center of the device 1, i. more preferably with respect to both the longitudinal and the widthwise orientation of the device 1 in the center, this more preferably with a handle length which corresponds to 0.4 to 0.6 times the length 1 of the device 1, more preferably about 100 to 150 mm. In particular, in the case of a freed grip region 7 according to the second embodiment, the freed-out handle is provided with a diameter of approximately 30 to 50 mm, which diameter can be chosen differently over the axial length of the handle, for example, increasing in the center outward.

In particular, one of the end walls 5, 6, more preferably both end walls 5, 6 are preferably designed as a standing surface. Accordingly, they offer a flat surface, for erecting the wet cleaning device 1 when not in use. In this established position as shown in FIG. 4 the wiping surface 19 is spent in an upright position, more preferably in an at least approximately vertical position relative to the base 32nd

In this non-use position of the device 1, in which it is placed on the base 32 in the region of an end wall 5, 6, preferably on the end wall 5, a filling of the fresh water tank 9. This takes place in the second embodiment by directly filling the here not After removal of a sealing plug or cover, not shown, a filling opening 33 is formed in the end wall 32 opposite the standing surface 32 exposed, through which the fresh water tank 9, preferably with detergent added water can be filled.

In the illustrated first embodiment, this is taken from the device 1 for filling the fresh water tank 9. Here again, preferably, one, the filling opening 33, in particular in the use state of the device 1 occlusive cap 34 is removed. With alignment of the filling opening 33 preferably vertically upwards, the filling of the fresh water tank 9 takes place, after which filling the opening 33 is closed again with the cap 34.

The filling amount of the fresh water tank 9 preferably does not correspond to the volume of the tank. Rather, the fresh water tank 9 is preferably filled to a maximum of 50 to 90% of the tank volume with cleaning fluid.

More preferably immediately below the tank opening 35 having the filling opening 33, the overflow opening 24 is provided in the circumferential tank wall. A filling of the fresh water tank 9 with cleaning liquid F is carried out in accordance with in the upright position of the tank at most below the overflow opening 24th

In the fixed configuration of the fresh water tank 9 according to the second embodiment, the overflow opening 24 is connected to the supply pipe 23.

This connection with the supply line 23 is achieved in the first embodiment with reinsertion of the fresh water tank 9 in the device first

To use the wet cleaning device 1, this, after appropriate closure of the filling opening 33 of the fresh water tank 9, moved to a position in which the wiping surface 19 facing downward, is aligned horizontally or at least approximately horizontally. The cleaning agent F present in the fresh water tank 9 then flows out via the overflow opening 24, which overflow opening 24, as well as preferably the adjoining supply line 23 has a diameter of more than 5 mm up to 15 mm, into the distribution reservoir 22. This distribution reservoir 22 has bottom side, ie in the carrier region 20 via orifices 37, preferably eight to twenty evenly distributed mouth openings 37 having a respective diameter of 2 to 5 mm, preferably 3 mm.

The liquid thus passes through the mouth openings 37 to the wiping element 25 and is received by the latter.

It is achieved as a surge metering, in which the cleaning agent is applied to the wiping element 25 at the beginning of the cleaning at a time and not during the cleaning continuously. This offers the advantage of a low mechanical effort.

For wet cleaning of a surface 8, for example, window surface, the wet cleaning device 1 is put into operation, in particular the electric motor 13 for driving the fan 14. For this purpose, the device 1 is preferably provided with a corresponding switch 38.

For cleaning a surface 8, the wet cleaning device 1 is set such that the wiping surface 19 is preferably seated flat on the surface 8 over the entire surface. By displacement of the wet cleaning device 1 in a preferred direction of displacement r, which displacement direction r preferably a shift from vertical top to bottom vertically, alternatively from left to right or right to left, but beyond also zigzag-like or frond-like from top to bottom , Moisture is applied to the surface 8 via the wiper element 25, any dirt on the surface 8 is dissolved and released from the surface 8 by the displaced wiping element 25.

During operation of the wet cleaning device 1, the suction opening 26 following in the direction of displacement r of the wiping element 25 is under pressure due to activation of the suction fan 14. Accordingly, suction of the moisture film remaining on the surface 8 in the direction of displacement behind the wiping element 25 takes place via the nozzle-like suction opening 26. The limiting member 27 serves in the form of a Abziehlippe.

Preference remains on the surface 8 no residual moisture, possibly only a mist-moist residue, which evaporates without residue.

Due to the compact design of the wet cleaning device 1, a near-edge processing of surfaces 8 is reached, so on in full surface edition of the wiper element 25 in an exemplary window surface both the vertically upper, horizontally aligned surface edge, and both lateral, vertically aligned edges.

The vertical lower surface edge is also the same by the wiper element 25 at full surface contact. For extraction in this corner area the surface 8, the wet cleaning device 1 is tilted by an ergonomic hand gesture (see FIGS. 8 and 13 ). In the course of tilting of the wet cleaning device 1, preferably about a tilt axis extending parallel to the longitudinal extent, the wiping surface 19 tends to be displaced into a horizontal plane, more preferably into a plane oriented perpendicularly to the surface 8 to be cleaned, accompanied by a sliding of the suction opening 26 the area 8 to the edge area.

The wet cleaning of the surface 8 is preferably carried out without dripping, according to uniform liquid application.

Any stubborn dirt on the surface 8, which are not or only unsatisfactory machinable with the usual wiping, can be processed with the wiper element section in the projection area.

The above explanations serve to explain the inventions as a whole covered by the application, which independently further develop the state of the art, at least by the following combinations of features, namely:
A wet cleaning device, wherein the handle region is rigidly formed with the wiping surface 19 and the suction opening 26 extends along a longitudinal edge of the wiper surface 19, wherein further the extension direction is aligned with a course of the suction opening 26, the handle region 7 in vertical overlap to the wiping surface 19th is trained. <B> LIST OF REFERENCES: </ b> 1 Wet-cleaning device 25 wiping element 2 casing 26 suction 3 housing 27 limiting member 4 device ground 28 limiting member 5 end wall 29 suction channel 6 end wall 30 suction 7 grip area 31 longitudinal wall 8th surface 32 footprint 9 Fresh water tank 33 filling 10 wall section 34 cap 11 housing opening 35 tank top 12 accumulator 37 mouth 13 electric motor 38 counter 14 fan 15 separators 16 Recovery tank b width 17 liquid line H height 18 fill opening l length 19 wiping surface r displacement direction 20 support region 21 Got over F cleaning fluid 22 distribution reservoir 23 feed 24 Overflow opening

Claims (15)

1. Wet cleaning device (1), in particular a window cleaning device, comprising a substantially rectangular wiping surface (19) that is also designed to apply moisture and a grip region (7) for gripping by hand, and an elongate suction opening (26), the grip region (7) being rigidly connected to the wiping surface (19) and the suction opening (26) extending along a longitudinal peripheral edge of the wiping surface (19), a direction of extension of the grip region (7) being aligned with a course of the suction opening (26), characterised in that the grip region (7) vertically overlaps the wiping surface (19).
2. Wet cleaning device according to claim 1, characterised in that the wet cleaning device (1) comprises a fresh-water tank (9) and preferably a dirty-water tank (16).
3. Wet cleaning device according to claim 2, characterised in that the fresh-water tank (9) and/or the dirty-water tank (16) can be removed from the wet cleaning device (1).
4. Wet cleaning device according to any of the preceding claims, characterised in that an electric motor (13) having a fan (14), the dirty-water tank (16) according to claim 2 and/or the fresh-water tank (9) according to claim 2 and/or an accumulator (12) are arranged one behind the other in alignment with the direction of extension of the grip region (7).
5. Wet cleaning device according to claim 4, characterised in that the intake and/or blowing direction of the fan (14) is oriented in the direction of extension of the grip region (7).
6. Wet cleaning device according to any of claims 2 to 5, characterised in that the fresh-water tank (9) delivers into a distribution reservoir (22) that extends over half or more of the wiping surface (19) and overlaps said surface.
7. Wet cleaning device according to claim 6, characterised in that the distribution reservoir (22) is open, via a plurality of outlet openings (37), to a wiping element (25) forming the wiping surface (19).
8. Wet cleaning device according to claim 7, characterised in that the wiping element (25) is a wiping cloth.
9. Wet cleaning device according to any of the preceding claims, characterised in that an end face (5, 6) of the wet cleaning device (1) is designed as a base (32).
10. Wet cleaning device according to any of claims 2 to 9, in each case depending on claim 2, characterised in that the suction opening (26) and the dirty-water tank (16) and/or the fresh-water tank (9) are arranged opposite one another with respect to a cross section transverse to the direction of extension of the grip region (7).
11. Wet cleaning device according to any of claims 7 to 10, characterised in that the wiping element (25) begins at a distance from the suction opening (26) with respect to the cross section.
12. Wet cleaning device according to any of the preceding claims, characterised in that the suction opening (26) is arranged outside the grip region (7) with respect to a vertical overlap.
13. Wet cleaning device according to any of the preceding claims, characterised in that the suction opening (26) is formed by two boundary parts (27, 28) extending towards one another in a V shape in cross section, and/or in that one or both boundary parts (27, 28) are designed as flexible lip parts.
14. Wet cleaning device according to any of claims 7 to 13, each depending on claim 7, characterised in that the wiping element (25) is detachably arranged on a planar support region (20).
15. Wet cleaning device according to claim 14, characterised in that the support region (20) has a free-standing position on the side remote from the suction opening (26) with respect to the cross section, the free-standing position preferably being designed to support the wiping element (25) in a wrap-around manner.

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