WO2019129362A1

WO2019129362A1 - Hard-surface cleaning device

Info

Publication number: WO2019129362A1
Application number: PCT/EP2017/084830
Authority: WO
Inventors: Tony DIEGEL; Bernd Gruber; Matthias GÜERS; Jürgen ZUGER
Original assignee: Alfred Kärcher SE & Co. KG
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2019-07-04
Also published as: PL3731712T3; EP3731712A1; CN111655100A; EP3731712B1

Abstract

The aim of the invention is to further improve the handling of a hard-surface cleaning device, in particular in the form of a window cleaning device, having a cleaning surface and a liquid application device for applying liquid to a surface to be cleaned, which cleaning surface is designed to be applied to and to be moved over the surface to be cleaned and which liquid application device comprises at least one liquid outlet for dispensing cleaning liquid onto the surface to be cleaned. This aim is achieved, according to the invention, in that the at least one liquid outlet is arranged or formed in a region surrounded by the cleaning surface.

Description

Hard surface cleaning device

The present invention relates to a hard surface cleaning device, in particular in the form of a window or window cleaning device, having a cleaning surface and a liquid applicator for applying liquid to a surface to be cleaned, which cleaning surface is adapted for application to and to move over to be cleaned Surface and which liquid applicator comprises at least one liquid outlet to summarize for dispensing cleaning liquid on the surface to be cleaned.

A hard surface cleaning device of the type described in the introduction is known, for example, in the form of a window cleaning device from DE 35 06 337 A1. With the known device, cleaning liquid can be applied to the cleaning surface through a nozzle. A disadvantage of the known device, however, is that the cleaning liquid is applied in the form of a spray on the cleaning surface, as is the case, for example, available in bottles cleaning fluids for discs, with a manual pump to be cleaned Disc are applied. By the spray mist areas are always applied next to the surface to be cleaned with cleaning liquid.

It is therefore an object of the present invention to further improve the handling of a hard surface cleaning device of the type described above.

This object is achieved according to the invention in a hard surface cleaning device of the type described above in that the at least one liquid outlet is arranged or formed in an area bounded by the cleaning surface.

The proposed development makes it possible, in particular, to apply the cleaning fluid exclusively to the surface to be cleaned, that no free spray is created. In particular, the cleaning liquid can only be applied when the cleaning surface bears against the surface to be cleaned. Thus, when the cleaning liquid is applied by the at least one liquid outlet, the hard surface cleaning device protects surrounding areas of the surface to be cleaned against undesired contamination with cleaning liquid. It is in this way a clean and easy handling of the hard surface cleaning device possible. As proposed, the area to be cleaned is wetted with cleaning fluid only within the area bounded by the cleaning area. An orderly reworking and removal of excess cleaning fluid from surface areas not to be cleaned is therefore not necessary. Overall, the handling of the hard surface cleaning device is thereby simplified and improved.

It is favorable if the at least one liquid outlet is arranged or formed behind or in a plane defined by the cleaning surface. This refinement makes it possible, in particular, to dispense the cleaning fluid only in the region bounded by the cleaning surface. For this, the cleaning surface of the hard surface cleaning device does not have to be completely closed. For example, it may be permeable to liquids or may have one or more apertures through which cleaning liquid exiting from the at least one liquid outlet may be applied to the surface to be cleaned.

It is advantageous, in particular also in a hard surface cleaning device of the type described in the introduction, if the at least one liquid outlet is arranged or formed closer to a front end of the cleaning surface than at a rear end of the cleaning surface. In this case, the front means in particular a front end of the cleaning surface in the direction of movement when the hard surface cleaning device is intended to be held by a user. For example, if the hard surface cleaning device is applied to a vertical surface to be cleaned, such as a window pane, for example, cleaning liquid can be removed from the at least one liquid surface. emerge outlet and flow by gravity along the disc, where the cleaning liquid then still and above all safely applied within the bounded by the cleaning surface area.

Depending on the size and shape of the cleaning surface, it may be advantageous, in particular also in the case of a hard surface cleaning device of the type described above, if the hard surface cleaning device has two or more liquid outlets. In particular, three, four or even more liquid outlets can be provided. In particular, these are preferably arranged such that a liquid application is possible as uniformly as possible within the area bounded by the cleaning surface on the surface to be cleaned.

It is advantageous if the two or more liquid outlets have identical or differently sized liquid outlet cross sections. Thus, an amount of cleaning fluid to be applied to the surface to be cleaned can be adapted in an optimized manner, in particular depending on a shape of the cleaning surface.

According to a further preferred embodiment of the invention, in particular also in the case of a hard surface cleaning device of the type described in the introduction, it can be provided that the hard surface cleaning device comprises a wiper-cover carrier which defines the cleaning surface. In particular, a side surface of the mop cover carrier can form the cleaning surface. The mop cover carrier can in particular serve to be covered with a mop cover, which is exchangeable and cleanable. Thus, depending on the surface to be cleaned, the optimum mop cover can be connected to the mop cover carrier.

It is advantageous if the cleaning surface is flat or substantially flat or convexly curved away from the mop cover carrier or curved concavely away from the mop cover carrier. In particular, the convexly curved surface or the concave curved surface may be in Form of a section of a cylinder surface to be formed. The design of the cleaning surface allows, in particular, optimal adaptation to surfaces to be cleaned. A concave curvature allows, in particular, optimal adaptation to surfaces to be cleaned, which are curved in a convex manner. In particular, the mop cover carrier can be formed deformable, so that a curvature of the cleaning surface can be adapted to a curvature of the surface to be cleaned when a user presses the cleaning surface against the surface to be cleaned.

The hard surface cleaning device can be designed in a particularly simple and compact manner if the at least one liquid outlet is formed integrally with the mop cover carrier. For example, the at least one liquid outlet in the form of a nozzle can be molded onto or connected to the mop cover carrier if the nozzle is designed as a separate component. In particular, the mop cover carrier may be made of a plastic by injection molding.

For optimum cleaning of the surface to be cleaned, it is advantageous if the mop cover carrier carries a mop cover. Ideally, the mop cover completely covers the cleaning surface defined by the mop cover carrier. In particular, when the cleaning surface defined by the mop cover carrier is formed of a hard material, for example a thermoplastic, damage to the surface to be cleaned by the mop cover carrier can be avoided. In addition, the mop cover can be optimally adapted depending on the cleaning to be carried out. In particular, it can have a high absorbency and dirt-dissolving ability, in order to best loosen dirt on surfaces to be cleaned, in particular with the assistance of cleaning fluid.

It is advantageous if the mop cover rests with a mop back side on the cleaning surface of the mop cover carrier or is substantially present and if a mop cover front side defines a wiping surface. The hard surface cleaning device can in this way with the wiping surface of the wiping zugs applied to the surface to be cleaned. The mop cover carrier, which can be embodied in a dimensionally stable manner in particular, then supports the mop cover so that it can be formed, in particular, from a highly flexible and optionally also elastic material. A flat abutment of the mop cover on the mop cover carrier enables optimum and uniform force transmission from the hard surface cleaning device via the mop cover carrier and the mop cover to the surface to be cleaned.

Optimum handling and simple cleaning with the hard surface cleaning device is possible in particular when the wiping surface and the cleaning surface are identical or essentially identical. In particular, as described with a dimensionally stable mop cover carrier, the entire wiping surface can be supported by the cleaning surface in order to uniformly transfer a wiping force with the hard surface cleaning device to the surface to be cleaned.

Preferably, the mop cover defines a closed wiping surface. In this way, the area to be cleaned can be processed flat with the hard surface cleaning device.

It is advantageous if the mop cover carrier has at least one liquid opening and if the at least one liquid outlet is arranged or formed in the region of the at least one liquid opening or in or at the at least one liquid opening or if the at least one liquid outlet is the at least one liquid outlet Liquid opening forms. The at least one liquid opening makes it possible in a simple manner to apply cleaning liquid through the mop cover carrier to the surface to be cleaned. If the mop cover carrier is covered with a mop cover or if the mop cover carrier carries a mop cover, the surface to be cleaned can be exposed to cleaning liquid through the mop cover. An undefined and uncontrolled spray mist of cleaning fluid can be effectively avoided. In addition, the mop cover carrier can be made up of at least one liquid Be formed closed to optimally support the mop cover.

It is advantageous if the mop cover has at least one mop cover liquid opening. This can in particular be a recess or a sufficiently large opening in the mop cover, so that the cleaning liquid can be applied directly to the surface to be cleaned directly from the at least one liquid outlet without initially coming into contact with the mop cover. Thus, for example, the cleaning liquid can be applied under pressure to the surface to be cleaned, whereby dirt can be easily dissolved.

It is favorable if the at least one liquid opening and the at least one mop cover liquid opening are arranged or formed to overlap at least partially, in particular completely. Thus, as already explained, the cleaning liquid can be applied from the at least one liquid opening through the mop cover, namely through the at least one mop cover liquid opening, directly onto the surface to be cleaned, without first coming into contact with the mop cover.

In a simple manner, the at least one liquid opening can be formed if it is embodied in the form of an opening in the mop cover carrier. For example, it may be formed in the form of a bore.

According to another preferred embodiment of the invention, it can be provided that the mop cover is in the form of a textile covering, a brush, a sponge or in the form of polishing wadding. In principle, the mop cover can be formed from any material which is suitable for not damaging the surface to be cleaned during cleaning, in particular not scratching it. For example, if the hard surface cleaning device is used to free iced slices of ice, ie to clean it of ice, the mop cover can be designed to remove the ice easily. For example, it can be harder than ice, but rather than glass, so that the glass to be cleaned, such as a car window, is not scratched. In the described application, a thawing or de-icing agent can be used as the cleaning liquid in order to melt the ice. In particular, the wiping cover can optionally also be dispensed with for the described de-icing application, so that the mop cover support can be brought into direct contact with the cleaning surface with the area to be embossed. In particular, the cleaning surface may be designed in the form of an ice scraper with one or more scraping edges. If the mop cover in particular comprises polishing wadding or is suitable for polishing surfaces, the hard surface cleaning device can also be used in particular for polishing surfaces.

Preferably, the mop cover carrier is designed in the form of a plate. This can basically have any shape. In particular, the plate can be designed flat. Further, the plate may also be curved to define, for example, a curved cleaning surface.

Conveniently, the mop cover carrier is formed liquid-permeable. This makes it possible, in particular, to apply cleaning liquid through the mop carrier to the surface to be cleaned. In particular, a mop cover which is held on the mop cover carrier can thus be moistened from the rear, as it were, so that the cleaning surface with the moistened mop cover can be applied to the surface to be cleaned. The mop carrier can have a plurality of openings for this purpose. In particular, the apertures may be arranged in a regular pattern. In particular, a stability of the mop cover carrier on the one hand and a liquid permeability on the other can be optimized on the other hand.

Conveniently, the mop cover is liquid-permeable. This makes it possible to apply cleaning liquid to the mop cover from the rear, so that the surface to be cleaned can be moistened with cleaning liquid with the wet or fully damped mop cover. It is advantageous if the mop cover and the mop cover carrier are non-positively and / or positively connected with each other. Thus, a secure hold of the mop cover on mop cover carrier can be achieved.

It is expedient if the hard surface cleaning device comprises a connecting device for non-positive and / or positive connection of the mop cover and the mop cover carrier in a connection position. The mop cover and the mop cover carrier can be easily and safely connected to one another and optionally also detached from one another.

The hard surface cleaning device can be formed in a simple manner if the connecting device is designed in the form of a clamping connection device, a clamping connection device or a Velcro connection device. Thus, the mop cover can be clamped or clamped, for example, to the mop cover carrier or simply clamped.

According to a further preferred embodiment of the invention, it can be provided that the connecting device comprises first connecting elements and second connecting elements, which are arranged or formed on the mop cover carrier and on the mop cover, respectively, and if the first and second connecting elements in the connecting position are in force. and / or positively engage and are in a disconnected position out of engagement. Such a connection device makes it possible in a simple manner to fix the mop cover on the mop cover carrier and release it again when necessary, for example to clean the mop cover or to replace it with another mop cover. In particular, a plurality of first and second connecting elements can be provided. By way of example, the connecting device can comprise pushbuttons, the components of which are arranged or formed on the mop cover on the one hand, and on the mop cover support on the other, and form the first and second connecting elements. In a particularly simple manner, the mop cover can be fixed to the mop cover carrier when the first connection elements are designed in the form of flexible barbs and when the second connection elements are designed in the form of textile loops. For example, the flexible hooks can be arranged or formed directly on the mop cover carrier, and the mop cover, when formed from a suitable textile material comprising textile loops, can be directly attached to the mop cover carrier.

The hard surface cleaning device can be produced in a simple manner if the first connecting elements and the mop cover carrier are made in one piece. For example, flexible hooks of a hook-and-loop connection device can be sprayed directly onto a mop cover carrier or can be produced from a thermoplastic material by injection molding as a whole. In particular, an assembly effort of the hard surface cleaning device can be minimized.

Preferably, the mop cover comprises the second connecting elements. In particular, it is integrally formed with these. Thus, the mop cover can be connected directly to the mop cover without further processing.

It is favorable if the mop cover and the mop cover support are held immovably or essentially immovably in the connection position. In this way, in particular a movement of the mop cover carrier can be transferred directly to the mop cover and thus to the surface to be cleaned.

According to a further preferred embodiment of the invention, in particular also in a hard surface cleaning device of the type described above, it can be provided that the liquid application device comprises a liquid container for receiving cleaning liquid and a liquid pump for conveying the cleaning liquid from the liquid container to at least one Fluid outlet includes. The liquid Pump may be formed in particular in the form of an electrically operated pump or in the form of a manual fluid pump. If the at least one liquid outlet is designed in the form of a nozzle, the cleaning liquid can also be applied to the surface to be cleaned or to a back side of the mop cover, in particular under a certain pressure.

It is advantageous if a cleaning agent and / or a thawing agent and / or a deicing agent and / or a wax and / or a polishing agent is received in the liquid container. For example, water can be used as the cleaning agent. This can also be mixed with special chemical substances to form an optimum cleaning agent for the respective application. Thawing or deicing are particularly suitable for use of the hard surface cleaning device for deicing panes in winter, especially car windows. For waxing in surfaces, for example car paints, a waxing agent can also be taken up in the liquid container and applied to the surface to be treated with the liquid application device. Furthermore, a polishing agent can also be taken up in the liquid container for polishing surfaces, for example car paints, and applied to the surface to be treated with the liquid application device. This can be done in particular in combination with a mop cover, which is suitable for polishing surfaces. For example, this may be polishing wadding.

Furthermore, it can be advantageous, in particular also in the case of a hard surface cleaning device of the type described in the introduction, if the hard surface cleaning device comprises a housing. In particular, components of the hard surface cleaning device can be arranged in the housing, which for example must be protected from dirt and liquids. These may be in particular to electrical or electronic components such as a motor or a control device. In addition, the housing can in particular also be ergonomically shaped in order, on the one hand, to fulfill a protective function and, on the other hand, also to define areas which are easy to handle. For example, by forming a handle integrated into the housing for holding the hard surface cleaning device.

Conveniently, this includes the housing a deviating from the cleaning surface footprint for parking the hard surface cleaning device. Such a configuration makes it possible, in particular, to turn off the hard surface cleaning device without placing it on the cleaning surface or the wiping surface. In particular, it can thus be avoided that the space on which the hard surface cleaning device is turned off is moistened by the hard surface cleaning device.

Preferably, the footprint is formed at the rear end of the Hartflächenreinigungs- device, in particular at the rear end of the housing. Thus, the hard surface cleaning device can be easily and steadily shut off.

In a simple way, the hard surface cleaning device can be turned off when the standing surface is transverse, in particular perpendicular or substantially perpendicular, to the cleaning surface. In particular, a contact of the cleaning surface or the wiping surface, with the location where the hard surface cleaning device is to be parked, can be avoided.

Advantageously, the footprint is significantly smaller than the cleaning surface. In particular, the standing area can amount to a maximum of 30% of the cleaning surface. Thus, only a small space is required for parking the hard surface cleaning device.

It is favorable, in particular also with a hard surface cleaning device of the type described in the introduction, when the hard surface cleaning device has a holding handle for holding the hard surface cleaning device. The handle can be designed, in particular, to hold the hard surface cleaning device with one hand and to guide it safely for cleaning surfaces to be cleaned. The handle can in particular be ergonomically designed to secure holding the hard surface cleaning device by a user enable. In particular, the handle can be formed in the form of a knob handle. This can in particular have a shape and size that it can be enclosed by a hand of a user. With a knob handle, the hard surface cleaning device can be safely held and guided by a user.

For ergonomic handling of the hard surface cleaning device, it is particularly advantageous if the handle is arranged or formed in the region of a rear half of the hard surface cleaning device. Thus, a user can optimally see a front area or a front half of the hard-surface cleaning device without being covered by his hand when holding the hard surface cleaning device.

The hard surface cleaning device can be made particularly compact if the housing comprises the handle. In particular, the handle may adjoin an opening provided on the housing. The handle can be formed in particular in the form of a shaft-shaped portion of the housing.

It is advantageous if the liquid container is connected in an operating position with the housing. In particular, a corresponding recess or receptacle for the liquid container may be provided on the housing so that it forms part of an outer surface of the hard surface cleaning device.

For cleaning the device and optionally also for filling the liquid container, it may be advantageous for the liquid container to be detachable from the housing. For example, for cleaning the liquid container, it can be separated from the housing.

The liquid container is preferably arranged in a front half of the hard surface cleaning device. Thus, when using the hard surface cleaning device, a user can in particular always adjust the level in the liquid See wells container. For this purpose, it is advantageous if the liquid container is formed from a transparent or at least translucent material.

It is favorable if the liquid container has a liquid container inlet and a liquid container outlet. The liquid container inlet can in particular form a filling opening in order to fill the liquid container in a simple manner, for example with water from a tap. In particular, the liquid container outlet can be connected in a fluid-active manner to a liquid pump or to the at least one liquid outlet in order to conduct or convey cleaning liquid from the liquid container to the at least one liquid outlet.

In order to prevent cleaning liquid from undesirably escaping from the liquid container, it is expedient for the liquid container inlet to be closed with a closure element.

A handling of the hard surface cleaning device can in particular be improved in a simple manner by the closure element being held movably on the hard surface cleaning device. In particular, it can be held captive on Hartflächenreinigungsgerät. For example, the closure element can be arranged pivotably on the housing.

In order to be able to move the closure element in a simple manner, in particular for opening the liquid container, it is advantageous if the closure element has at least one grip region projecting from the housing or liquid container.

In particular, when a liquid pump is provided, it is favorable if a ventilation device is arranged or formed on the liquid container. In particular, the ventilation device may be designed in the form of a ventilation valve. The ventilation device allows in particular a pressure equalization when the liquid container from a non-deformable material, that is dimensionally stable or substantially dimensionally stable, is formed.

In a simple manner, cleaning liquid can be conducted or conveyed from the liquid container to the at least one liquid outlet if the at least one liquid container outlet is connected to the liquid pump in a fluid-active manner.

Furthermore, it is favorable if the at least one liquid outlet is fluid-effectively connected to the liquid pump. Cleaning liquid can be promoted from the liquid pump to at least one liquid outlet.

The hard surface cleaning device can be designed in a particularly simple and cost-effective manner if the liquid pump is designed in the form of a diaphragm pump or in the form of a piston pump. In principle, other pump types can also be used with which liquids, in particular also highly viscous fluids such as polishing and waxing agents, can be conveyed.

In order to avoid inadvertent leakage of cleaning liquid from the at least one liquid outlet, it is advantageous if a check valve is arranged or formed between the liquid pump and the at least one liquid outlet. This embodiment is particularly advantageous when the liquid pump is designed in the form of a diaphragm pump.

Advantageously, the liquid container outlet is movably arranged or formed in the liquid container. In this way, regardless of an alignment of the hard surface cleaning device relative to the gravitational force, a safe removal of cleaning fluid from the liquid container can be achieved. It is expedient if the liquid container outlet is arranged or formed at a free end of a liquid line projecting into the liquid container. For example, the liquid line may be in the form of a hose. This can be designed in particular movable and deformable bar.

A safe removal of cleaning liquid from the liquid container is particularly possible if a dip weight is arranged or formed on the liquid container outlet. In particular, that can

Diving weight be arranged at the end of a projecting into the liquid container liquid conduit in the form of a tube. In particular, the floating weight can ensure that, irrespective of any orientation of the hard surface cleaning device relative to the direction of gravity, the liquid container outlet is always arranged in the deepest region of the liquid container relative to the direction of gravity. Thus, the cleaning liquid can be removed from the liquid container independently of an orientation of the hard surface cleaning device with respect to the direction of gravity.

Furthermore, it may be advantageous if the hard surface cleaning device comprises a movement device for moving the mop cover support and the handle relative to each other. In particular, the movement device can also be designed to move the mop cover carrier relative to the housing. Such a movement device makes it possible in particular for a user to hold the hard surface cleaning device on the handle or on the housing and the mop cover carrier can be moved automatically in particular, for example back and forth, ie in the form of a translational movement, or else in the form of a rotating movement in one of the mop cover carrier or the cleaning surface defined level.

The movement device preferably comprises a drive device. With such a drive device, the mop cover carrier can be moved in particular automatically relative to the handle or to the housing. Conveniently, the drive device is designed to generate a translation and / or rotational movement of the mop cover carrier relative to the handle or to the housing. In this way, the movement device makes it possible, in particular, to automatically move the mop cover support relative to the surface to be cleaned in order to not only dissolve the dirt adhering firmly to the surface to be cleaned by the cleaning fluid, but also mechanically to clean it Surface.

In order to achieve efficient detachment of dirt on a surface to be cleaned, it is favorable if the drive device is designed to generate a movement stroke in at least one direction in a range from about 0.05 mm to about 10 mm. In particular, the movement stroke can be generated in a range of about 0.05 mm to about 2 mm. Thus, the surface to be cleaned can be machined very efficiently with the hard surface cleaning device very efficiently and for a user in order to save energy.

In a simple and cost-effective manner, the hard surface cleaning device can be formed when the drive device is designed in the form of a mechanical, electromechanical, electromagnetic and / or piezoelectric drive. In particular, electric drive devices make it possible to operate the hard surface cleaning device independently of the mains.

In a simple way, the mop cover carrier can oscillate when the drive is in the form of an unbalance motor, in the form of an eccentric drive or an electrical oscillating circuit.

The mop cover carrier can be vibrated particularly efficiently when the drive device is arranged or formed on the mop cover carrier. If the drive oscillates, the mop cover carrier will vibrate. In order to permit a user-friendly use of the hard surface cleaning device, it is expedient for the mop cover carrier and the holding handle to be arranged or designed to be decoupled relative to one another in terms of vibration. This makes it possible, in particular, for a mop cover carrier, which moves relative to the handle back and forth or is set in vibrations, to be unable to transmit vibrations to the handle or to transmit them only to a limited extent. In particular, this allows a user to safely hold the hard surface cleaning device without his hand also being vibrated.

Advantageously, the mop cover carrier and the handle are coupled together by at least one damping element. The at least one damping element is used for decoupling the mop cover carrier and the handle from each other, so that no or possibly no vibrations from the mop cover carrier can be transferred to the handle.

In particular, a rubber stopper may be used as the damping element, which has sufficient elasticity to be held securely at one end and to enable a relative movement to its other end at the other end. Alternatively, the at least one damping element can also be designed in the form of a spring-elastic element, for example in the form of a tension or compression spring. The shape of the damping element can basically be designed as desired.

In order to decouple the mop cover carrier and the handle as efficiently as possible from each other, it is advantageous if the hard surface cleaning device comprises four damping elements. However, it can also be provided two, three, five or more damping elements.

For a simple assembly of the adhesive cleaning device, it is particularly advantageous if the at least one damping element is non-positively and / or positively coupled to the mop cover carrier and / or the handle or the housing. For example, the at least one damping latching element can be coupled with the mop cover support and / or the handle or the housing.

An assembly of the hard surface cleaning device can be further simplified if the mop cover carrier comprises a holder for holding the drive device. In particular, a holder can be integrally formed on the mop cover carrier which has an electric motor, for example a motor

Unbalance motor, picks up.

In order to be able to efficiently transmit vibrations to the mop cover carrier, it is favorable if the drive device comprises a drive shaft and if the drive shaft is aligned transversely, in particular perpendicularly, to the cleaning surface. In particular, an imbalance weight can be held on the drive shaft, so that oscillations can be generated in a simple manner with the drive device, which lead to a vibratory movement of the mop cover carrier in a plane defined by the cleaning surface.

Furthermore, it may be advantageous if the hard surface cleaning device comprises a control device for controlling the fluid pump and / or the movement device. For example, a control device makes it possible to activate and also to deactivate the fluid pump and / or the movement device.

Furthermore, it may be advantageous if the control device is designed to control a rotational speed of the drive device. For example, a rotational speed of the drive device can be adjusted or adjusted depending on the object to be cleaned. In particular, speeds in a range of 0 to 10,000 revolutions per minute can be set, in particular in a range of 0 to 7,000 revolutions per minute.

According to a further preferred embodiment of the invention, it can be provided that the hard surface cleaning device has a speed specification device operatively connected to the control device. give the speed of the drive means comprises. For example, it may be a rotary potentiometer or else an input device in the form of a keyboard.

Furthermore, it is favorable if the hard surface cleaning device comprises a moisture sensor cooperating with the control device for determining a moisture of the mop cover. For example, the moisture of the mop cover, which is determined with the moisture meter, can be used to control the liquid pump. If the mop is sufficiently moist, the control device can deactivate the liquid pump automatically, for example. Thus, excessive wetting of the surface to be cleaned can be avoided. This also saves cleaning liquid.

It is particularly advantageous if the moisture sensor is arranged in the mop cover or on the mop cover carrier. In particular, it can come into direct contact with the mop cover and reliably determine the moisture of the mop cover.

It is favorable if the control device for controlling the liquid pump is dependent on the moisture of the mop cover. If, for example, no sufficient moisture of the mop cover is detected, for example automatically determined by means of a moisture sensor, the control device activates the liquid pump. If sufficient moisture of the mop cover is detected, for example with the humidity sensor, the control device can automatically deactivate the liquid pump in order to avoid excessive moistening of the mop cover. In particular, an excessive application of cleaning fluid to the surface to be cleaned can be reliably avoided.

Advantageously, the hard surface cleaning device comprises at least a first actuating element for activating the liquid pump. The min- At least one first actuating element can in particular also be designed for deactivating the liquid pump.

It is advantageous if the hard surface cleaning device comprises at least one second actuating element for activating the movement device. The at least one second actuating element can optionally also be designed to deactivate the movement device.

The at least one first actuating element and / or the at least one second actuating element are preferably connected in a control-effective manner to the control device in order to send actuating signals for activating and deactivating the fluid pump and / or the movement device to the control device.

It is favorable if the control device comprises a timing element and if the control device activates the fluid pump after actuation of the at least one first actuating element for a time period predetermined by the timing element. In this way, it can be ensured, in particular, that a pressurization of the surface to be cleaned with cleaning fluid is automatically stopped if a user should forget this after activating the fluid pump with the at least one first actuating member. Optionally, the duration of time may be fixed or adjusted by a user with a corresponding input device. In particular, a rotary potentiometer or a keyboard input device can be provided for this purpose.

Conveniently, the predetermined period of time is in a range of about 10 seconds to about 90 seconds. Depending on the size of the surface to be cleaned, the specified period of time may be set longer or shorter or optionally set by the user.

For ergonomic handling of the hard surface cleaning device, it is advantageous if the at least one first actuating element and the min. at least a second actuator are arranged side by side. In particular, the actuating elements can be arranged on a surface of the handle or of the housing facing away from the cleaning surface. This allows a user, for example with a thumb of his hand holding the hard surface cleaning device, to selectively actuate the actuators to activate and optionally also deactivate the fluid pump and the movement device.

In order to enable optimum cleaning of different surfaces to be cleaned, it is expedient for the mop cover carrier to be rectangular, triangular, circular or semicircular. The mop cover can in particular be adapted in its shape to the mop cover carrier.

Furthermore, it is advantageous, in particular also in a hard surface cleaning device of the type described above, when the hard surface cleaning device is designed in the form of a hand-held hard surface device. In particular, it may have a weight of less than 1000 g, so that it can be comfortably held by one hand for a user and moved on or along a surface to be cleaned.

In addition, it is favorable, in particular also in the case of a hard surface cleaning device of the type described in the introduction, if the hard surface cleaning device is designed in the form of a hard surface cleaning device which can be operated independently of the mains. In this way, the hard surface cleaning device can be handled in a particularly simple manner, since no mains connection cable is in the way when using the hard surface cleaning device.

In order to be able to operate the hard surface cleaning device in particular off-grid, it is advantageous, in particular also in the case of a hard surface cleaning device of the type described in the introduction, if it comprises an electrical energy store. Conveniently, the electrical energy store is formed in the form of a battery. This may in particular be a rechargeable battery. The rechargeable battery can in particular be permanently installed on the hard surface cleaning device. Optionally, the rechargeable battery can also be made removable from the hard surface cleaning device in order to be charged separately from the hard surface cleaning device. Thus, when at least two rechargeable batteries are available, the hard surface cleaning device can be used practically permanently, namely when a deflated battery is replaced by a charged battery in order to continue the use of the hard surface cleaning device.

According to a further preferred embodiment of the invention, it can be provided that the hard surface cleaning device comprises a charging connection device which is in electrical connection with the electrical energy store for connecting the hard surface cleaning device, in particular via a charging cable, to a charger. In particular, the charging connection device enables easy charging of the electrical energy storage device.

Furthermore, it may be favorable, in particular also in the case of a hard surface cleaning device of the type described in the introduction, when the hard surface cleaning device comprises a network connection device for connecting the hard surface cleaning device to a power network via a mains connection cable. For example, the hard surface cleaning device can also be used when the electrical energy storage is emptied. For example, the load connection device can also form the network connection device.

Furthermore, it is advantageous, in particular also in the case of a hard surface cleaning device of the type described in the introduction, when the hard surface cleaning device comprises a mains connection cable for connecting the hard surface cleaning device to a power network. Such a configuration allows in particular a permanent use of the hard surface cleaning device. According to a further preferred embodiment of the invention, in particular also in a hard surface cleaning device of the type described above, it can be provided that the hard surface cleaning device has an optical and / or acoustic display device for displaying an operating mode of the hard surface cleaning device and / or a state of charge of the electrical energy storage device of the hard surface cleaning device includes. For example, the display device can visually and / or acoustically indicate to the user whether the liquid pump is activated and / or whether the movement device is activated. Furthermore, the user can optionally optically and / or acoustically display a state of charge of the electrical energy store.

The hard surface cleaning device can be designed in a particularly simple and compact manner if the at least one first actuating element and / or the at least one second actuating element encompass the display device. For example, one or more LED elements can be integrated in the at least one first actuating element and / or in the at least one second actuating element in order to indicate to a user whether the liquid pump is activated or whether the movement device is activated. A state of charge indicator can in particular be arranged or formed separately from the actuation elements.

The hard surface cleaning device can be made particularly cost-effective and compact if the display device is designed in the form of an LED display. In particular, the LED display may comprise at least one color change LED. For example, different operating modes can be displayed with different colors. In particular, a state of charge of the electrical energy store can also be displayed to the user via color coding. For example, the LED can light up green when the energy store is fully charged, yellow when the energy store is partially discharged, and red when the energy store is virtually completely discharged. Furthermore, it may be advantageous, in particular also in the case of a hard surface cleaning device of the type described in the introduction, if the hard surface cleaning device has a pressure sensor for measuring a pressure force exerted on the cleaning surface. Such a pressure sensor makes it possible, in particular, to determine the pressing force exerted on the cleaning surface. This is particularly advantageous if the hard surface cleaning device comprises a movement device and if the pressure force would be so great that the movement device would be blocked by the user pressing the hard surface cleaning device onto the surface to be cleaned. Exceeding a limit force can be signaled to the user, for example visually and / or acoustically. The movement device requires no excessively high pressure force of the hard surface cleaning device against the surface to be cleaned, because by the movement means of the mop cover carrier is moved in a defined manner relative to the surface to be cleaned to solve it adhering dirt mechanically.

It is favorable if the pressure sensor is in electrical operative connection with the control device such that when an acting limit force is exceeded, a warning device outputs an optical and / or acoustic signal. In particular, the display device can capture the warning device. For example, the warning device can blink in a specific color, for example red, and emit a signal when the specified contact pressure is exceeded.

The hard surface cleaning device can be particularly compact and inexpensive if the display device comprises the warning device.

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

Figure 1: a perspective view of an embodiment of a

Hard surface cleaner; Figure 2 is a side view of the hard surface cleaning device of Figure 1;

FIG. 3 shows a view of the hard surface cleaning device from FIG. 2 in the direction of the arrow A;

FIG. 4 shows a perspective exploded view of the hard surface cleaning device from FIG. 1;

FIG. 5 shows a further perspective exploded view of the hard surface cleaning device from FIG. 1;

FIG. 6 is a partially sectioned exploded perspective view of the hard surface cleaning device of FIG. 1;

FIG. 7: a perspective, partially sectioned illustration of a

Liquid container of the hard surface cleaning device;

Figure 8 is a sectional view taken along line 8-8 in Figure 3;

Figure 9 is a sectional view taken along line 9-9 in Figure 3;

FIG. 10 shows a top view of the mop cover carrier of the hard surface cleaning device from FIG. 1 in the direction of the arrow A;

Figure 11 is a sectional view taken along line 11-11 in Figure 10;

Figure 12 is a sectional view taken along line 12-12 in Figure 10;

FIG. 13: a schematic representation of a circuit arrangement of the

Hard surface cleaning device of Figure 1; and FIG. 14 shows a schematic sectional view of a part of a connection device for connecting the mop cover carrier and the mop cover.

In FIG. 1, a hard surface cleaning device, generally designated by the reference numeral, is shown by way of example in the form of a window or window cleaning device 12.

The hard surface cleaning device 10 comprises a mop cover carrier 14, on which a mop cover 16 is held. Furthermore, the hard surface cleaning device 10 comprises a liquid applicator 18 for applying liquid, in particular a cleaning liquid, a defrosting liquid or a deicing liquid to a surface 20 to be cleaned.

Furthermore, the hard surface cleaning device 10 comprises a housing 22, which comprises an integrated handle 24, which is formed on an all-side umschlosse- ne opening 26 on a side facing away from the mop cover 14 side of the housing 22.

The handle 24 is formed in a rear half 28 of the Hartflächenreinigungsge- device 10.

In a front half 30 of the hard surface cleaning device 10, a container receptacle 32 is formed on the housing 22 into which a liquid container 34 is inserted.

The hard surface cleaning device 10 further comprises a movement device 36 for moving the mop cover support 14 and the grab handle 24 or the housing 22 relative to each other.

The individual components of the hard surface cleaning device 10 will be explained in detail below. The mop cover carrier 14 is substantially in the form of a shallow trough with a rectangular bottom 38, which defines a cleaning surface 40 on which the mop cover 16 is held.

On a rear side 42 of the bottom 38 or on an inner side of the trough a sleeve-shaped holder 44 is formed. It serves to receive a drive device 46 encompassed by the movement device 36.

The drive device 46 is designed to generate a movement of the mop cover carrier 14 relative to the handle 24 or relative to the housing 22.

The drive device 46 comprises an electromagnetic drive 48 in the form of an electric motor 50, which is designed as an unbalance motor 52.

A drive shaft 54 defines a longitudinal axis 56, which is transversely perpendicular, aligned with the cleaning surface 40.

An imbalance mass 58 is arranged on the drive shaft 54, so that when it is rotated about the longitudinal axis 56, the electric motor 50 and the holder 44 on which the electric motor 50 is mounted are set in vibration. Since the holder 44 is formed integrally with the mop cover carrier 14, the oscillating drive device 46 also sets the mop carrier 14 vibrating.

A movement stroke of the vibrations generated by the drive device 46 is approximately in a range of approximately 0.05 mm to approximately 2 mm. Depending on the type of drive device selected, a travel may also be in a range of about 0.05 mm to about 10 mm.

The mop cover 16 is held on the cleaning surface 40 of the mop cover support 14 with a mop back side 60. A mop head Page 62 defines a wiping surface 64, which, as shown by way of example in FIG. 2, bears against the surface 20 to be cleaned for cleaning.

The wiping surface 64 and the cleaning surface 40 are formed substantially identical. In the embodiment shown in the figures, the wiping surface 64 is slightly larger than the cleaning surface 40 and protrudes slightly on all sides.

In the embodiment of the hard surface cleaning device 10 shown in the figures, the mop cover 16 defines a closed wiping surface 64.

The mop cover 16 is formed of a liquid-permeable material. It can be a textile material.

Furthermore, the mop cover 16 in the form of a brush or a

Sponge be trained. Optionally, the mop cover 16 may also be formed of polishing wadding or a polishing pad carrying polishing pad to summarize.

In the exemplary embodiment of the hard surface cleaning device 10 shown by way of example in the figures, the mop cover 16 and the mop cover carrier 14 are connected to one another in a non-positive and / or positive manner. For this purpose, a connecting device 66 is provided for positively and / or form-locking connection of the mop cover 16 and the mop cover support 14 in a connecting position, as shown by way of example in FIGS. 1 and 8.

The connecting device 66 is formed in the exemplary embodiment illustrated in the figures in the form of a Velcro connection device 68. Alternatively, it can also be designed in the form of a clamping connection device or clamping connection device. The connecting device 66 comprises first connecting elements 70 and second connecting elements 72, which are arranged or formed on the one hand on the mop cover carrier 14 and on the other hand on the mop cover 16.

The first and second connecting elements 70 and 72 are non-positively and / or positively engaged in the connecting position and in a disconnecting position, as shown by way of example on the left in FIG. 14, is disengaged.

In the case of the Velcro connecting device 68, the first connecting elements 70 are designed in the form of flexible barbs 74, the second connecting elements 72 in the form of textile loops 76.

The first connecting elements 70 are formed integrally with the mop cover carrier 14, for example by injection molding of the mop cover carrier with the first connecting elements 70 made of a thermoplastic material. The first connecting elements 70 may also be injection-molded onto the mop cover carrier 14.

The first connecting elements 70 may be provided on the entire cleaning surface 40 or only in partial areas thereof.

The mop cover 16 comprises the second connecting elements 72. They are integrally formed with the mop cover 16, in particular when it is formed from a textile material.

The mop cover 16 and the mop cover support 14 are held immovably or essentially immovably to one another in the connection position.

The mop cover carrier 14 comprises the bottom 38 in the form of a plate 78. In the exemplary embodiment of the hard surface cleaning device 10 shown in the figures, the liquid application device 18 comprises two fluid outlets 80.

The configuration of the liquid outlets 80 can be clearly seen in the enlarged detail in FIG. 11 b. The actual liquid outlet 80 is slightly set back from the cleaning surface 40 by a flat, hollow-cylindrical recess 82.

Transverse to the cleaning surface 40, a blind hole 84 is formed starting from the recess 82, which is fluidically connected via a substantially smaller through-bore diameter 86 with a in the direction of a rear end 88 of the mop cover 16 angled connection channel 90. The connection channel 90 passes through a connecting piece 92, onto which a connecting line 94 in the form of a hose is attached.

The liquid outlets 80 are thus formed slightly behind the plane 96 defined by the cleaning surface 40. The entire liquid outlet 80 with the connecting piece 92 is formed integrally with the mop cover carrier 14.

One of the liquid outlets 80 is located closer to a front end 98 of the mop cover 16 on the mop cover support 14 than the rear end 88. The liquid outlet 80 is also located closer to the front end 98 than to the longitudinal axis 56. The other liquid outlet 80 is also formed closer to the holder 44 than at the rear end 88.

Fluid outlet cross sections of the two fluid outlets 80 defined by the through-bores 86 are identical. Optionally, these can also be of different sizes, in order to dispense different quantities of liquid at the two different positions on the mop cover carrier 14 for wetting the mop cover 16 with cleaning liquid. The liquid application device 18 comprises not only the liquid container 34 for receiving cleaning liquid, but also a liquid pump 100 for conveying the cleaning liquid from the liquid container 34 to the liquid outlets 80.

The liquid pump 100 is in the form of a diaphragm pump 102. Alternatively, it may be in the form of a piston pump. In principle, other types of pumps can also be used with which liquids, in particular highly viscous fluids such as polishing and waxing agents, can be promoted.

The liquid container 34 is connected to the housing 22 in an operating position, as shown by way of example in FIGS. 2 and 8. However, the liquid container 34 is formed such that it can be removed from the housing 22. This is shown schematically for example in Figures 4 and 6.

As can be clearly seen in particular in FIG. 8, the liquid container 34 is arranged in the front half 30 of the hard surface cleaning device 10.

The liquid container 34 has a liquid container inlet 104 in the form of a circular filling opening 106 and a liquid container outlet 108.

The liquid container outlet 108 is formed at a free end of a hose 110. The free end of the tube 110 is surrounded by a diving weight 112, which pulls the free end 110 and thus the liquid container outlet 108 downwards in the direction of gravity.

The liquid container outlet 108 is movably disposed in the liquid container 34 as described, at a free end of the tube 110 forming a liquid conduit. The liquid container 34 is formed of a transparent or at least translucent material, so that a user can recognize the level of the cleaning liquid in the liquid container 34 at any time.

The hose 110 is coupled to a pump inlet 114 of the liquid pump 100. A pump outlet 116 or a pressure side of the liquid pump 100 is connected to a distributor piece 118 which has two connecting pieces 120 which are directed in the opposite direction and which are each connected to a hose 94. The other ends of the hoses 94 are connected to the connecting pieces 92 as already described above.

In the manifold 118, a check valve 122 is integrated, which is thus arranged between the liquid pump 100 and the liquid outlets 80.

Overall, the liquid container 34 is essentially dimensionally stable.

In order to avoid that a negative pressure can form in the liquid container 34 when cleaning liquid is conveyed to the liquid outlets 80 by means of the liquid pump 100, a ventilation device 124 in the form of a ventilation valve 126 is also arranged on the liquid container 34.

The liquid container inlet 104 is closed by a closure element 128. This comprises a flap 130 pivotally mounted on the housing 22 and a stopper 132 which engages sealingly in the filling opening 106 and is integrally formed on the flap 130.

A forward facing free end 134 of the flap 130 is slightly curved away from the liquid container 34 and thus forms a grip region 136, wel rather, allows a user to easily open and re-close the filling opening 106.

The closure element 128 is held in the described manner and also on the hard surface cleaning device 10 in an undelayable manner.

On the housing 22, a deviating from the cleaning surface 40 footing 138 is further formed at a rear end of the handle 24 for stopping the hard surface cleaning device 10th

The footprint 138, in conjunction with the rear end 88 of the mop cover 16, allows the hard surface cleaning device 10 to be safely shut off.

Such a footprint is symbolized in Figure 8 by the plotted stand level 140, which extends substantially perpendicular to the plane 96. The standing surface 138 is thus formed at the rear end of the hard surface cleaning device 10 and is significantly smaller than the cleaning surface 40th

In the exemplary embodiment of the hard surface cleaning device 10 shown in the figures, the cleaning surface 40 is planar or essentially flat. Alternatively, this may also be formed convexly curved away from the mop cover carrier 14, for example in the form of a section of a cylinder surface.

The recess 82 forms a liquid opening 142 on the mop cover carrier 14. The liquid outlet 80 is arranged or formed in the region of this liquid opening 142 or at this. However, it can also be said that in the embodiment of the hard surface cleaning device 10 shown in the figures, the liquid outlets 80 each form a liquid opening 142.

FIG. 11 a schematically illustrates the optional design of a mop cover 16, specifically by means of a mop cover liquid opening 144 which is shown in the form of a milled line. This and the liquid opening 142 can, as shown for example in FIG. shown in the form of an adhesive, in particular partially or completely overlapping. In this way, cleaning liquid can be applied directly from the liquid outlet 80 to the surface 20 to be cleaned without first moistening the mop cover 16.

The recess 82 forms, as described above, a liquid opening 142, which practically forms an opening 146 of the plate 78 and thus of the wiping reference carrier 14. However, the opening is closed by the outlet nozzle 148 forming liquid outlet 80 to the through hole 86.

Furthermore, in the hard surface cleaning device 10, the mop cover carrier 14 and the handle 24 and the housing 22 are disposed relative to each other in a vibration-decoupled manner. To achieve this, a plurality of damping elements 150 are arranged between the mop cover carrier 14 and the handle grip 24 encompassed by the housing 22, namely a total of four, namely a damping element 150 in each corner of the mop cover carrier 14.

The damping elements 150 are both non-positively and / or positively connected to the mop cover carrier 14 and to the handle 24 and to the housing 22. For this purpose, an annular groove 152 which is open in the direction of the mop cover is formed on the mop cover support 14, into which an annular projection 154 of the damping element 150 designed in the form of a plug 156 engages.

From the housing 22 projects into an opening 158 of the plug 116 engages engaging sleeve-shaped protrusion 160 on which in the manner of Wischhaken away from the mop cover 14 protruding projections whose free ends abut against an annular disc 164, which in a corresponding Annular groove 166 engages, which is open towards the mop cover 16 facing out. The housing 22 is mechanically coupled via the described connection by means of the damping elements 150 with the mop cover carrier 14.

The damping elements 150 are sufficiently elastic, so that a transmitted from the drive means 46 to the mop cover carrier 14 vibration can not or only to a very limited extent to the housing 22 and thus the handle 24 can be transmitted. By means of the described vibration decoupling, a user can keep the hard surface cleaning device 10 even when the drive device 46 causes the mop cover carrier 14 to oscillate.

The hard surface cleaning device 10 further comprises a control device 168 for controlling the liquid pump 100 and the movement device 36.

As can be clearly seen in FIG. 6, the control device 168 is arranged in a receiving space 170 enclosed by the grab handle 24, on a circuit board 172 held therein.

The control device 168 is connected to the liquid pump 100 via a connecting line 174 so as to be effective in control. Furthermore, it is connected to the drive 48 via a connecting line 176 so as to be effective in control.

Below the board 172, an electrical energy store 178 in the form of a battery 180 is also arranged in the receiving space 170. The battery 180 is in the form of a rechargeable battery 180.

This electrical energy store 178 makes it possible to form the hard surface cleaning device 10 in the form of a hard surface cleaning device 10 which can be operated independently of the mains. The hard surface cleaning apparatus 10 is further formed in the form of a hand-held hard surface cleaning apparatus 10. The total weight of the hard surface cleaning device 10 is preferably less than 1000 g.

In the area of the standing surface 138, a charging connection device 182 is arranged which is in electrical operative connection with the control device 168 via a connecting line 184. This in turn is electrically connected via a connecting line 168 in operative connection with the battery 180.

If a plug 188 of a charging cable 190 is plugged into the charging connection device 182 in the form of a charging socket and the charging cable 190 is connected to a charging device 192, the battery 180 can be recharged if necessary. The charger 192 can be connected via a connecting cable 194, which has a plug 196, to a power grid 198, in particular to a mains socket.

Alternatively, the charging connection device 182 can also be connected directly to the power network 198 with a mains connection cable 200 with a plug 202 corresponding to the plug 188 and a mains connection plug 204. In this way, the hard surface cleaning device 10 can optionally also be operated depending on the network. The charging terminal device 182 also optionally forms a network connection device 206 in this way.

In a further variant (not shown) of the hard surface cleaning device 10, the mains connection cable 200 can also be permanently connected to the hard surface cleaning device 10 for connection to the power network 198.

The hard surface cleaning device 10 further comprises a first actuating element 208 and a second actuating element 210. Both are in control connection with the control device 168. The first actuating element 208 serves to activate and deactivate the liquid The second actuating member 210 can also be embodied in particular for deactivating the liquid pump 100.

The second actuating element 210 serves to activate the drive 48.

To deactivate the drive 48, the second actuator 210 must be operated again.

The control device 168 may optionally include a timer 212, which specifies an actuation time or activation duration of the liquid pump 100. In this case, the control device 168 may be designed in such a way that the liquid pump 100 is activated as a result of an actuation of the first actuating member 208 and is automatically deactivated again after the period of time predetermined by the timer 212 has expired.

Optionally, the hard surface cleaning device 10 may include a speed specification device 214. This allows a user to discretely or continuously adjust a speed of the drive 48. For example, the speed input device 214 may be in the form of a rotary potentiometer or a keyboard. In this case, the control device 168 may in particular also include a rotational speed control unit 216, which is operatively connected to the rotational speed specification device 214 in terms of control.

In particular, the timer 212 can specify a time duration in a range from approximately 10 s to approximately 90 s. Optionally, a time-setting device can also be provided in order to be able to specify the time duration by the user himself.

The actuators 208 and 210 are arranged on the housing 22 in extension of the handle 24 directly above the holder 44 side by side.

Buttons 218 and 220 included in the actuators 208 and 210 are disposed on the board 172. Optionally, the hard surface cleaning apparatus 210 may further include a humidity sensor 222 cooperating with the controller 168 to determine a humidity of the mop cover 16.

The moisture sensor 222 may optionally be arranged on the mop cover 16 or on the mop cover carrier 14.

If a humidity sensor 222 is provided, the control device 168 can be designed in particular such that it controls the liquid pump 100 as a function of the humidity of the mop cover 16 determined by the humidity sensor 222. In particular, the controller 168 may automatically deactivate the liquid pump 100 when the humidity value measured by the humidity sensor 222 exceeds a predetermined threshold for the humidity.

The hard surface cleaning device 10 may further optionally include an optical and / or acoustic display device 224 for displaying an operating mode of the hard surface cleaning device 10 and / or a state of charge of the electrical energy storage 178.

For example, the display device 224 may be comprised of the actuation elements 208 and 210, for example in the form of LEDs 226. The LEDs 226 may illuminate in particular when the movement device 36 is activated or when the fluid pump 100 is activated.

The display device 224 can in particular comprise a color change LED in order to indicate the state of charge of the electrical energy store 178.

Further, the hard surface cleaning apparatus may optionally include a pressure measuring sensor 228 for measuring a pressing force applied to the cleaning surface 40. The pressure measuring sensor 228 is in electrical operative connection with the control device 168 via a connecting line 230 in such a way that when an acting and in the control device 168 is exceeded, the pressure is exceeded. stored limit force a warning device outputs an optical and / or acoustic signal.

For a compact construction of the hard surface cleaning device 10, the display device 224 may comprise the warning device.

The provision of the pressure measuring sensor makes it possible in particular for a user to press the hard surface cleaning device 10 only so strongly with the cleaning surface 40 or the wiping surface 64 against the surface 20 to be cleaned that the movement device 36 can still move the mop cover carrier 14. In fact, if the pressing force is too high, there is the danger that the drive 48 will be blocked so that the effect to be caused by the movement device 36 is no longer achieved.

The hard surface cleaning device 10 described above makes it simple for a user to highly effectively clean a surface 20 to be cleaned, in particular a flat hard surface such as a window pane, by moistening with cleaning liquid which is either applied directly to the surface 20 to be cleaned The removal of dirt from the surface to be cleaned is facilitated in particular by the possibility of moving the mop cover carrier 14 relative to the housing 22 and the handle 24 at a high frequency.

Due to the special arrangement of the liquid outlets 80, an undefined spray of cleaning liquid is avoided. The surface to be cleaned is only wetted with liquid where the hard surface cleaning device 10 rests with the mop cover 16. This allows a defined and elegant cleaning of hard surfaces.

The area cleaned in the manner described and wetted with cleaning liquid can not in a second step with one in the figures shown suction device, such as a window vacuum, aspirated and dried streak-free.

LIST OF REFERENCE NUMBERS

Hard surface cleaning device

Disk cleaner

Mop cover carrier

Wischbezug

Liquid applicator

surface

casing

handle

perforation

rear half

front half

container receptacle

liquid container

mover

ground

cleaning surface

back

attitude

driving means

drive

electric motor

vibrator

drive shaft

longitudinal axis

unbalanced mass

Wischbezug back

wiping surface

connecting device

Velcro connecting device first connecting element second connecting element barb

loop

plate

liquid outlet

recess

blind

Through Hole

The End

connecting channel

spigot

connecting line

level

liquid pump

diaphragm pump

Liquid container inlet Befü Hope

Flüssigkeitsbehälterauslass

liquid line

diving weight

pump inlet

pump outlet

manifold

spigot

check valve

aerator

vent valve

closure element

flap

Plug

The End

grip area

footprint Ground level

liquid opening

Wischbezug liquid opening

perforation

exhaust nozzle

damping element

ring groove

head Start

Plug

perforation

head Start

barb

washer

ring groove

control device

accommodation space

circuit board

connecting line

energy storage

battery

Charging port facility

connecting line

plug

charge cable

charger

connection cable

plug

power grid

Power cord

plug

Power connector Mains connection device first actuating element second actuating element timer

Speed setting means

Speed control

button

humidity sensor

display

LED

pressure sensor

connecting line

Claims

claims

1. Hard surface cleaning device (10), in particular in the form of a window cleaning device (12), with a cleaning surface and a liquid application device (18) for applying liquid to a surface (20) to be cleaned, which cleaning surface (40) is formed for applying and for moving over the surface to be cleaned (20) and which liquid application device (18) comprises at least one liquid outlet (80) for dispensing cleaning liquid onto the surface (20) to be cleaned, characterized in that the at least one liquid outlet (80) is arranged or formed in an area bordered by the cleaning surface (40).

2. hard surface cleaning device according to claim 1, characterized in that the at least one liquid outlet (80) behind or in one of the cleaning surface (40) defined plane (96) is arranged or formed.

3. hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized in that the at least one liquid outlet (80) closer to a front end (98) of the cleaning surface (40) arranged or formed is as at a rear end (88) of the cleaning surface (40).

4. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by two or more liquid outlets (80).

5. hard surface cleaning device according to claim 4, characterized in that the two or more fluid outlets (80) have identical or different sized fluid outlet.

6. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by a mop cover carrier (14) which defines the cleaning surface (40).

7. hard surface cleaning device according to claim 6, characterized in that the cleaning surface (40) flat or substantially planar or from the mop cover carrier (14) facing away convexly curved or pointing away from the mop head concavely curved, in particular in the form of a section of a cylinder surface ,

8. hard surface cleaning device according to claim 6 or 7, characterized in that the at least one liquid outlet (80) is formed integrally with the mop cover support (14).

9. hard surface cleaning device according to one of claims 6 to 8, characterized in that the mop cover carrier (14) carries a mop cover (16).

10. hard surface cleaning device according to claim 9, characterized in that the mop cover (16) with a mop back side (60) on the cleaning surface (40) of the mop cover support (14) is present or essentially abuts and that a mop cover front side (62) a wiping surface (64).

11. hard surface cleaning device according to claim 10, characterized in that the wiping surface (64) and the cleaning surface (40) are identical or substantially identical.

12. hard surface cleaning device according to one of claims 9 to 11, characterized in that the mop cover (16) defines a closed wiping surface (64).

13. hard surface cleaning device according to one of claims 6 to 12, characterized in that the mop cover support (14) sigkeitsöffnung at least (142) and that the at least one liquid keitsauslass (80) in the region of at least one liquid opening (142) or is arranged or formed in or on the at least one liquid opening (142) or that the at least one liquid outlet (80) forms the at least one liquid opening (142).

14. Hard surface cleaning device according to one of claims 9 to 13, characterized in that the mop cover (16) has at least one mop liquid opening (144).

15. hard surface cleaning device according to claim 14, characterized in that the at least one liquid opening (142) and the at least one mop reference liquid opening (144) at least partially, in particular completely, are arranged overlapping or formed.

16. hard surface cleaning device according to claim 14 or 15, characterized in that the at least one liquid opening (142) in the form of an opening (146) of the mop cover support (14) is formed.

17. hard surface cleaning device according to one of claims 9 to 16, characterized in that the mop cover (16) in the form of a textile cover, a brush, a sponge or in the form of polishing wadding is formed.

18. hard surface cleaning device according to one of claims 6 to 17, characterized in that the mop cover support (14) in the form of a plate (78) is formed.

19. hard surface cleaning device according to one of claims 6 to 18, characterized in that the mop cover carrier (14) is formed liquid-permeable.

20. hard surface cleaning device according to one of claims 9 to 19, characterized in that the mop cover (16) is formed liquid-permeable.

21. hard surface cleaning device according to one of claims 9 to 20, characterized in that the mop cover (16) and the mop cover support (14) non-positively and / or positively connected with each other.

22. hard surface cleaning device according to one of claims 9 to 21, characterized by a connecting device (66) for non-positive and / or positive connection of the mop cover (16) and the mop cover carrier (14) in a connection position.

23. hard surface cleaning device according to claim 22, characterized in that the connecting device (66) in the form of a Spannverbindungs- device, a clamping connection device or a Velcro connection device (68) is formed.

24. Hard surface cleaning device according to claim 22 or 23, characterized in that the connecting device (66) comprises first connecting elements (70) and second connecting elements (72), which on the one hand on the mop cover support (14) and on the other hand on the mop cover (16 ) are arranged or formed, and that the first and second connecting elements (70, 72) in the connecting position non-positively and / or positively engaged and are in a disconnected position out of engagement.

25. hard surface cleaning device according to claim 24, characterized in that the first connecting elements (70) in the form of flexible barbs (74) are formed and that the second connecting elements (72) in the form of textile loops (76) are formed.

26. hard surface cleaning device according to claim 24 or 25, characterized in that the first connecting elements (70) and the mop reference carrier (14) are integrally formed.

27. hard surface cleaning device according to one of claims 24 to 26, character- ized in that the mop cover (16) comprises the second connecting elements (72), in particular integrally formed with these.

28. hard surface cleaning device according to one of claims 22 to 27, character- ized in that the mop cover (16) and the mop cover carrier (14) in the connecting position immovable or substantially immovable are held together.

29. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized in that the liquid application device (18) comprises a liquid keitsbehälter (34) for receiving cleaning liquid and a liquid pump (100) for conveying the cleaning liquid the liquid container (34) to the at least one liquid outlet (80).

30. hard surface cleaning device according to claim 29, characterized in that in the liquid container (34) a cleaning agent and / or a thawing agent and / or a deicing agent and / or a wax and / or a polishing agent is added.

31. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by a housing (22).

32. Hard surface cleaning device according to claim 31, characterized in that the housing (22) differs from the cleaning surface (40) Stand surface (138) comprises for parking the Hartflächenreinigungsge- device (10).

33. hard surface cleaning device according to claim 32, characterized in that the support surface (138) at the rear end of the Hartflächenreinigungs- device (10) is formed.

34. Hard surface cleaning device according to claim 32 or 33, characterized in that the standing surface (138) runs transversely, in particular vertically or substantially perpendicular, to the cleaning surface (40).

35. Hard surface cleaning device according to one of claims 32 to 34, characterized in that the standing surface (138) is significantly smaller than the cleaning surface (40).

36. hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by a handle (24) for holding the hard surface cleaning device (10).

37. Hard surface cleaning device according to claim 36, characterized in that the handle (24) in the region of a rear half (28) of the hard surface cleaning device (10) is arranged or formed.

38. Hard surface cleaning device according to claim 36 or 37, characterized in that the housing (22) comprises the handle (24).

39. Hard surface cleaning device according to one of claims 31 to 38, characterized in that the liquid container (34) is connected to the housing (22) in an operating position.

40. hard surface cleaning device according to one of claims 31 to 39, character- ized in that the liquid container (34) from the housing (22) is designed to be removable.

41. Hard surface cleaning device according to one of claims 29 to 40, characterized in that the liquid container (34) in a front half (30) of the hard surface cleaning device (10) is arranged.

42. Hard surface cleaning device according to one of claims 29 to 41, characterized in that the liquid container (34) has a liquid keitsbehältereinlass (104) and a liquid container outlet (108).

43. hard surface cleaning device according to claim 42, characterized in that the liquid container inlet (104) with a closure element (128) is closed.

44. hard surface cleaning device according to claim 43, characterized in that the closure element (128) movable, in particular captive, the hard surface cleaning device (10) is held.

45. Hard surface cleaning device according to one of claims 29 to 44, characterized in that a ventilation device (124) is arranged or formed on the liquid container (34), in particular a ventilation valve (126).

46. Hard surface cleaning device according to one of claims 42 to 45, characterized in that the liquid container outlet (108) is fluidically connected to the liquid pump (100).

47. Hard surface cleaning device according to one of claims 42 to 46, characterized in that the at least one liquid outlet (80) is fluidically connected to the liquid pump (100).

48. hard surface cleaning device according to one of claims 29 to 47, character- ized in that the liquid pump (100) in the form of a diaphragm pump (102) or in the form of a piston pump is formed.

49. hard surface cleaning device according to one of claims 29 to 48, character- ized in that between the liquid pump (100) and the at least one liquid outlet (80) a check valve (122) is arranged or formed.

50. Hard surface cleaning device according to one of claims 42 to 49, characterized in that the liquid container outlet (108) is movably arranged or formed in the liquid container (34).

51. Hard surface cleaning device according to one of claims 42 to 50, character- ized in that the liquid container outlet (108) at a free end of a liquid in the container (34) projecting liquid line (110) is arranged or formed.

52. Hard surface cleaning device according to one of claims 42 to 51, characterized in that a dip weight (112) is arranged or formed on the liquid container outlet (108).

53. hard surface cleaning device according to one of claims 29 to 52, character- ized in that the liquid container (34) is formed of a translucent material.

54. Hard surface cleaning device according to one of claims 36 to 53, characterized by a movement device (36) for moving the mop cover support (14) and the handle (24) relative to each other.

55. Hard surface cleaning device according to claim 54, characterized in that the movement device (36) comprises a drive device (46).

56. hard surface cleaning device according to claim 55, characterized in that the drive device (46) is designed to generate a translation and / or rotational movement of the mop cover support (14) relative to the handle (24).

57. Hard surface cleaning device according to claim 55 or 56, characterized in that the drive device (46) is designed to generate a movement stroke in at least one direction in a range of about 0.05 mm to about 10 mm, in particular in a range of about 0.05 mm to about 2 mm.

58. Hard surface cleaning device according to one of claims 55 to 57, characterized in that the drive device (46) is designed in the form of a mechanical, electromechanical, electromagnetic and / or piezoelectric drive (48).

59. hard surface cleaning device according to claim 58, characterized in that the drive (48) in the form of an unbalance motor (52), in the form of an eccentric drive or an electrical resonant circuit is formed.

60. Hard surface cleaning device according to one of claims 55 to 59, characterized in that the drive device (46) on the mop reference carrier (14) is arranged or formed.

61. Hard surface cleaning device according to one of claims 36 to 60, characterized in that the mop cover carrier (14) and the holding handle (24) are arranged or formed relative to each other in a vibration-decoupled manner.

62. Hard surface cleaning device according to one of claims 36 to 61, characterized in that the mop cover support (14) and the retaining handle (24) by at least one damping element (150) are coupled together.

63. Hard surface cleaning device according to claim 62, characterized by four damping elements (150).

64. Hard surface cleaning device according to claim 62 or 63, characterized in that the at least one damping element (150) non-positively and / or positively coupled to the mop cover support (14) and / or the handle (24) or the housing (22) ,

65. Hard surface cleaning device according to one of claims 55 to 64, characterized in that the mop cover carrier (14) comprises a holder (44) for holding the drive device (46).

66. Hard surface cleaning device according to one of claims 55 to 65, characterized in that the drive device (46) comprises a drive shaft (54) and that the drive shaft (54) is aligned transversely, in particular vertically, to the cleaning surface (40).

67. Hard surface cleaning device according to one of claims 29 to 66, characterized by a control device (168) for controlling the liquid pump (100) and / or the movement device (36).

68. Hard surface cleaning device according to claim 67, characterized in that the control device (168) is designed to control a rotational speed of the drive device (46).

69. Hard surface cleaning device according to claim 68, characterized by one with the control device (168) in operative connection Speed specification device (214) for specifying the speed of the drive device (46).

70. Hard surface cleaning device according to one of claims 67 to 69, characterized by a moisture sensor (222) interacting with the control device (168) for determining a moisture content of the mop cover (16).

71. Hard surface cleaning device according to claim 70, characterized in that the moisture sensor (222) in the mop cover (16) or on the wiper-reference carrier (14) is arranged.

72. Hard surface cleaning device according to one of claims 67 to 71, characterized in that the control device (168) is designed to control the liquid pump (100) as a function of the moisture content of the mop cover (16).

73. Hard surface cleaning device according to one of claims 29 to 72, characterized by at least one first actuating element (208) for activating the liquid pump (100), in particular also for deactivating the liquid pump (100).

74. Hard surface cleaning device according to one of claims 55 to 73, characterized by at least one second actuating element (210) for activating the movement device (36), in particular also for deactivating the movement device (36).

75. Hard surface cleaning device according to one of claims 67 to 74, characterized in that the control device (168) comprises a timer (212) and that the control device (168) the liquid pump (100) after actuation of the at least one first Actuator (208) for a predetermined time by the timer (212) duration.

76. Hard surface cleaning device according to claim 75, characterized in that the predetermined period of time is in a range of about 10 s to about 90 s.

77. Hard surface cleaning device according to one of claims 74 to 76, characterized in that the at least one first actuating element (208) and the at least one second actuating element (210) are arranged next to one another, in particular on one of the cleaning surface (40). opposite surface of the handle (24) or the housing (22).

78. Hard surface cleaning device according to one of claims 6 to 77, characterized in that the mop cover support (14) is rectangular, triangular, circular or semicircular.

79. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized in that it is designed in the form of a hand-held hard surface cleaning device (10).

80. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized in that it is designed in the form of a network-independently operable hard surface cleaning device (10).

81. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by an electrical energy store (178).

82. hard surface cleaning device according to claim 81, characterized in that the electrical energy store (178) in the form of a battery (180) is formed, in particular in the form of a rechargeable battery (180).

83. Hard surface cleaning device according to claim 81 or 82, characterized by a charging connection device (182) which is in electrical operative connection with the electrical energy store (178) for connecting the hard surface cleaning device (10) via a charging cable (190) to a charger (192). ,

84. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, by a Netzan- closing device (206) for connecting the hard surface cleaning device (10) via a power cable (200) to a power grid (198).

85. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, by a network connection cable (200) for connecting the hard surface cleaning device (10) to a power grid (198).

86. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by an optical and / or acoustic display device (224) for displaying an operating mode of hard surface cleaning device (10) and / or a state of charge of the electrical energy store (178) of Hard surface cleaning device (10).

87. Hard surface cleaning device according to claim 86, characterized in that the at least one first actuating element (208) and / or the at least one second actuating element (210) comprise the display device (224).

88. Hard surface cleaning device according to claim 86 or 87, characterized in that the display device (224) in the form of an LED display (226), in particular comprising at least one color change LED is formed.

89. Hard surface cleaning device according to one of the preceding claims, in particular according to the preamble of claim 1, characterized by a pressure sensor (228) for measuring a force exerted on the cleaning surface (40) pressing force.

90. Hard surface cleaning device according to claim 89, characterized in that the pressure sensor (228) is in electrical operative connection with the control device (168) such that when an effective limit force is exceeded a warning device outputs an optical and / or acoustic signal ,

91. hard surface cleaning device according to claim 90, characterized in that the display device (224) comprises the warning device.