EP2823746B1 - Cleaning device for the wet cleaning of floor surfaces - Google Patents

Cleaning device for the wet cleaning of floor surfaces Download PDF

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Publication number
EP2823746B1
EP2823746B1 EP14151426.5A EP14151426A EP2823746B1 EP 2823746 B1 EP2823746 B1 EP 2823746B1 EP 14151426 A EP14151426 A EP 14151426A EP 2823746 B1 EP2823746 B1 EP 2823746B1
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EP
European Patent Office
Prior art keywords
cleaning
roller
cleaning device
opening
chamber
Prior art date
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Active
Application number
EP14151426.5A
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German (de)
French (fr)
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EP2823746A3 (en
EP2823746A2 (en
Inventor
Zydek Martin
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Wessel Werk GmbH
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Wessel Werk GmbH
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Publication of EP2823746A2 publication Critical patent/EP2823746A2/en
Publication of EP2823746A3 publication Critical patent/EP2823746A3/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0416—Driving means for the brushes or agitators driven by fluid pressure, e.g. by means of an air turbine

Definitions

  • the invention relates to a cleaning device for wet cleaning of floor surfaces.
  • the basic structure of the cleaning device includes a housing having on its underside a slot-shaped suction opening and a bottom open roll chamber with a rotatably mounted cleaning roller, a device for discharging a cleaning fluid in the roll chamber and a fixed or pivotally connected to the housing suction nozzle for connecting a suction unit.
  • a suction chamber is arranged, which extends from the suction opening to the suction nozzle and is not connected to the roll chamber.
  • a cleaning device with the described features is made US Pat. No. 3,699,607 known.
  • the device has an electric motor which drives a cleaning roller covered with bristle bundles via a V-belt. Within the roll chamber, a cleaning fluid is released, which is distributed by the mechanical action of the cleaning roller on the bottom surface or incorporated into a textile floor covering.
  • the known device has a suction opening, which is formed as a narrow slot and arranged in the direction of movement in front of the bottom-side opening of the roll chamber. Through the slit-shaped suction opening dirt particles and liquid are sucked from the bottom surface. The fluid intake takes place during a backward movement of the device over the bottom surface. For the operation of the cleaning device, a power supply is necessary. The cleaning device is therefore less suitable as an accessory for a vacuum cleaner. Furthermore, the known cleaning device is designed specifically for the care of textile floor surfaces.
  • the DE 10 2007 029258 A1 describes another cleaning device for wet cleaning of floor surfaces according to the preamble of independent claim 1.
  • the invention has for its object to provide a cleaning device for wet cleaning of floor surfaces, which can be used netztebunden and therefore also suitable as an accessory or ballast for a commercial vacuum cleaner.
  • a cleaning device for wet cleaning of floor surfaces which can be used netztebunden and therefore also suitable as an accessory or ballast for a commercial vacuum cleaner.
  • the object of the invention to solve this problem is a cleaning device according to claim 1.
  • the suction chamber which extends from a slot-shaped suction opening to the suction nozzle and is not connected to the roll chamber, comprises a turbine chamber with a turbine, which flows around and / or flows through an air stream sucked in the suction opening or through a separate opening and drives the cleaning roller.
  • the cleaning roller is driven according to the invention by a driven turbine and is arranged in a separate roller chamber, which is not acted upon by the suction air flow. Since the roller chamber is not traversed by a suction air, there is also no risk that a portion of the cleaning fluid is discharged immediately in the form of small droplets with the air flow. Rather, it is ensured that the entire amount of detergent on the floor surface is used effectively.
  • the airflow entering through the suction opening can be used to drive a turbine which drives the cleaning roller.
  • the slot-shaped suction opening is to be designed so that it not only sucks dirt and liquid effectively, but also that a sufficiently large volume flow with the lowest possible Pressure losses flow in and can flow through the suction chamber.
  • the turbine is in this embodiment of the invention preferably a Pelton turbine or a flow-through cross-flow turbine. Alternatively it can be provided as a turbine and an axially impinged turbine, which is preferably driven by a sucked through a separate opening air flow.
  • the air stream sucked through the separate opening is not loaded with dirt particles or drops of liquid and is used as a clean air flow exclusively for driving the turbine.
  • the air flow sucked in through the suction opening and the air flow driving through the turbine are brought together.
  • the slot-shaped suction opening preferably extends parallel to the bottom-side opening of the roll chamber and is arranged according to an advantageous embodiment of the invention in the working direction behind the opening of the roll chamber.
  • the cleaning fluid is applied to the cleaning roller and / or the bottom surface, distributed by the rotation of the cleaning roller on the bottom surface and then sucked back through the slot-shaped suction opening without interrupting the movement process.
  • the average residence time of the cleaning fluid on the bottom surface is shorter compared to the prior art. However, the residence time is sufficient to wet dusts and dirt particles with the cleaning liquid, to bind to the liquid and to take up again together with the liquid in the slot-shaped suction opening.
  • the suction opening is expediently delimited by a sealing lip, at least on its longitudinal side facing away from the opening of the roller chamber.
  • the cleaning device can be used for cleaning smooth floor surfaces.
  • a particularly preferred embodiment for this application The device according to the invention provides that the housing has bottom-side rollers and that the slot-shaped suction opening is delimited on both longitudinal sides in each case by a flexible lip which projects beyond the contact surface predetermined by the rollers.
  • the flexible lips bend due to the excess length in both a forward movement as well as a backward movement and are profiled so that the rear in each case rear lip with a smooth working edge acts as a scraper and that the front in the direction of travel lip by profiling not on the entire surface the bottom surface rests, leaving between the lip and the bottom surface gaps through which air and liquid can be sucked.
  • the flexible lips on their suction slot facing side acting as a scraper smooth working edge and the lips are provided on its side facing away from the suction slot side with a profiled surface.
  • the profiled surface of the lips may in particular have a ribbed structure.
  • the housing of the cleaning device on bottom side projections which terminate at a short distance above the predetermined by the rollers footprint and shield the space between the flexible lips end against air ingress. This measure contributes to the fact that only little external air is sucked in and an effective negative pressure can build up under the slot-shaped suction opening.
  • the device for discharging the cleaning fluid has at least one nozzle or outlet opening, which is expediently arranged in the roller space above the rotation roller.
  • the cleaning liquid can be applied to the surface of the cleaning roller and / or the floor surface to be cleaned.
  • the cleaning roller is covered with bristle bundles and / or has soft cleaning pads, z. As felt, foam, fur o. The like. On.
  • the pads can also be combined with each other.
  • a housing 1 which has on its underside a slot-shaped suction opening 2 and a bottom open roller chamber 3 with a rotatably mounted cleaning roller 4, a device 5 for discharging a cleaning fluid in the roll chamber and a with the Housing 1 fixed or pivotally connected suction nozzle 6 for connecting a suction unit.
  • a suction chamber 7 is arranged, which extends from the suction opening 2 to the suction nozzle 7 and is not connected to the roll chamber 3.
  • the suction chamber 7 comprises a turbine chamber 8 with a turbine 9, which flows around and / or flows through an air stream sucked in the suction opening 2 and drives the cleaning roller 4, for example by means of a V-belt 10.
  • the V-belt and the connection tab can be accommodated in a wall cavity close to the housing 1.
  • the slot-shaped suction opening 2 extends parallel to the bottom-side opening of the roll chamber 3 and is arranged in the working direction behind the opening of the roll chamber 3.
  • the housing 1 has bottom-side rollers 11.
  • the slot-shaped suction opening 2 is delimited on both longitudinal sides by a flexible lip 12 which project beyond the contact surface predetermined by the rollers 11.
  • the flexible lips 12 bend due to the excess length in a movement of the cleaning device on the bottom surface.
  • the flexible lips 12 have on their suction opening 2 side facing acting as a scraper smooth working edge 13 and that the flexible lips 12 have a profiled surface 14 on its side facing away from the suction slot.
  • the profiled surface 14 has a rib structure with a plurality of parallel triangular ribs.
  • the described arrangement and profiling of the flexible lips 12 ensures that each acts in the direction of travel behind the lip with a smooth working edge as a scraper and that each front in the direction of travel lip rests only on the ribs of the profiled surface 14 being between the bottom surface and form the profiled surface 14 gaps through which water and air can be sucked.
  • Fig. 2 is also apparent that the housing 1 has bottom projections 15 which terminate at a short distance above the predetermined by the rollers 11 footprint and shield the space between the flexible lips 12 end against air ingress.
  • the device 5 for discharging the cleaning fluid has at least one nozzle 18 or outlet opening, which is arranged in the roll chamber 3 above the axis of rotation of the cleaning roller 4.
  • the cleaning agent is sprayed onto the cleaning roller 4 and / or on the bottom surface.
  • the cleaning roller 4 is covered with bristle bundles.
  • the cleaning roller may also have soft cleaning pads, e.g. B. felt coverings, foam pads or fur coverings.

Description

Die Erfindung betrifft eine Reinigungsvorrichtung zur Nassreinigung von Bodenflächen.The invention relates to a cleaning device for wet cleaning of floor surfaces.

Zum grundsätzlichen Aufbau der Reinigungsvorrichtung gehören ein Gehäuse, das an seiner Unterseite eine schlitzförmige Saugöffnung und einen bodenseitig offenen Walzenraum mit einer drehbeweglich gelagerten Reinigungswalze aufweist, eine Einrichtung zur Abgabe eines Reinigungsfluides in den Walzenraum und ein mit dem Gehäuse fest oder schwenkbeweglich verbundener Saugstutzen zum Anschluss eines Saugaggregates. In dem Gehäuse ist ein Saugraum angeordnet, der sich von der Saugöffnung bis zu dem Saugstutzen erstreckt und nicht mit dem Walzenraum verbunden ist.The basic structure of the cleaning device includes a housing having on its underside a slot-shaped suction opening and a bottom open roll chamber with a rotatably mounted cleaning roller, a device for discharging a cleaning fluid in the roll chamber and a fixed or pivotally connected to the housing suction nozzle for connecting a suction unit. In the housing, a suction chamber is arranged, which extends from the suction opening to the suction nozzle and is not connected to the roll chamber.

Eine Reinigungsvorrichtung mit den beschriebenen Merkmalen ist aus US 3 699 607 bekannt. Die Vorrichtung weist einen Elektromotor auf, der über einen Keilriemen eine mit Borstenbündel besteckte Reinigungswalze antreibt. Innerhalb des Walzenraumes wird ein Reinigungsfluid abgegeben, welches durch die mechanische Wirkung der Reinigungswalze auf der Bodenfläche verteilt oder in einen textilen Bodenbelag eingearbeitet wird. Die bekannte Vorrichtung weist eine Saugöffnung auf, die als schmaler Schlitz ausgebildet und in Bewegungsrichtung vor der bodenseitigen Öffnung des Walzenraumes angeordnet ist. Durch die schlitzförmige Saugöffnung werden Schmutzpartikel und Flüssigkeit von der Bodenfläche abgesaugt. Die Flüssigkeitsaufnahme erfolgt während einer Rückwärtsbewegung der Vorrichtung über die Bodenfläche. Für den Betrieb der Reinigungsvorrichtung ist eine Stromversorgung notwendig. Die Reinigungsvorrichtung ist daher als Zusatzeinrichtung für einen Bodenstaubsauger weniger geeignet. Ferner ist die bekannte Reinigungsvorrichtung speziell zur Pflege von textilen Bodenflächen konzipiert. Die DE 10 2007 029258 A1 beschreibt eine weitere Reinigungsvorrichtung zur Nassreinigung von Bodenflächen gemäß dem Oberbegriff des unabhängigen Anspruchs 1.A cleaning device with the described features is made US Pat. No. 3,699,607 known. The device has an electric motor which drives a cleaning roller covered with bristle bundles via a V-belt. Within the roll chamber, a cleaning fluid is released, which is distributed by the mechanical action of the cleaning roller on the bottom surface or incorporated into a textile floor covering. The known device has a suction opening, which is formed as a narrow slot and arranged in the direction of movement in front of the bottom-side opening of the roll chamber. Through the slit-shaped suction opening dirt particles and liquid are sucked from the bottom surface. The fluid intake takes place during a backward movement of the device over the bottom surface. For the operation of the cleaning device, a power supply is necessary. The cleaning device is therefore less suitable as an accessory for a vacuum cleaner. Furthermore, the known cleaning device is designed specifically for the care of textile floor surfaces. The DE 10 2007 029258 A1 describes another cleaning device for wet cleaning of floor surfaces according to the preamble of independent claim 1.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine Reinigungsvorrichtung zur Nassreinigung von Bodenflächen anzugeben, die netzungebunden eingesetzt werden kann und daher auch als Zusatzeinrichtung bzw. Vorschaltgerät für einen handelsüblichen Bodenstaubsauger geeignet ist. Bei einer Verwendung der Reinigungsvorrichtung auf glatten Bodenbelägen soll ferner gewährleistet sein, dass die Reinigungsflüssigkeit weitgehend vollständig von der Bodenfläche wieder aufgenommen wird.Against this background, the invention has for its object to provide a cleaning device for wet cleaning of floor surfaces, which can be used netztebunden and therefore also suitable as an accessory or ballast for a commercial vacuum cleaner. When using the cleaning device on smooth floor coverings should also be ensured that the cleaning liquid is largely completely absorbed by the bottom surface again.

Gegenstand der Erfindung zur Lösung dieser Aufgabe ist eine Reinigungsvorrichtung nach Anspruch 1.The object of the invention to solve this problem is a cleaning device according to claim 1.

Erfindungsgemäß umfasst der Saugraum, der sich von einer schlitzförmigen Saugöffnung bis zu dem Saugstutzen erstreckt und nicht mit dem Walzenraum verbunden ist, eine Turbinenkammer mit einer Turbine, die von einem in der Saugöffnung oder durch eine separate Öffnung angesaugten Luftstrom umströmt und/oder durchströmt wird und die Reinigungswalze antreibt. Die Reinigungswalze wird erfindungsgemäß von einer angetriebene Turbine angetrieben und ist in einem separaten Walzenraum, der von dem Saugluftstrom nicht beaufschlagt wird, angeordnet. Da die Walzenkammer nicht von einem Saugluftstrom durchströmt ist, besteht auch nicht die Gefahr, dass ein Teil des Reinigungsfluids sofort in Form kleiner Tröpfchen mit dem Luftstrom ausgetragen wird. Vielmehr ist sichergestellt, dass die gesamte Reinigungsmittelmenge auf der Bodenfläche wirksam zur Anwendung kommt. Flüssigkeit und Schmutzpartikel werden durch die Wirkung einer separat angeordneten schlitzförmigen Saugöffnung von der Bodenfläche abgesaugt. Der durch die Saugöffnung eintretende Luftstrom kann zum Antrieb einer Turbine genutzt werden, welche die Reinigungswalze antreibt. Entsprechend ist die schlitzförmige Saugöffnung so auszulegen, dass sie nicht nur Schmutz und Flüssigkeit wirksam ansaugt, sondern dass auch ein ausreichend großer Volumenstrom mit möglichst geringen Druckverlusten einströmen und den Saugraum durchströmen kann. Die Turbine ist bei dieser Ausführungsform der Erfindung vorzugsweise eine Pelton-Turbine oder eine durchströmte Querstromturbine. Alternativ kann als Turbine auch eine axial angeströmte Turbine vorgesehen sein, die vorzugsweise von einem durch eine separate Öffnung angesaugten Luftstrom angetrieben wird. Der durch die separate Öffnung angesaugte Luftstrom ist nicht mit Schmutzpartikeln oder Flüssigkeitstropfen beladen und wird als sauberer Luftstrom ausschließlich zum Antreiben der Turbine genutzt. In einem Abschnitt des Saugraumes hinter dem Walzenraum werden der durch die Saugöffnung angesaugte Luftstrom und der durch die Turbine antreibende Luftstrom zusammengeführt.According to the invention, the suction chamber, which extends from a slot-shaped suction opening to the suction nozzle and is not connected to the roll chamber, comprises a turbine chamber with a turbine, which flows around and / or flows through an air stream sucked in the suction opening or through a separate opening and drives the cleaning roller. The cleaning roller is driven according to the invention by a driven turbine and is arranged in a separate roller chamber, which is not acted upon by the suction air flow. Since the roller chamber is not traversed by a suction air, there is also no risk that a portion of the cleaning fluid is discharged immediately in the form of small droplets with the air flow. Rather, it is ensured that the entire amount of detergent on the floor surface is used effectively. Liquid and dirt particles are sucked away from the bottom surface by the action of a separately arranged slot-shaped suction opening. The airflow entering through the suction opening can be used to drive a turbine which drives the cleaning roller. Accordingly, the slot-shaped suction opening is to be designed so that it not only sucks dirt and liquid effectively, but also that a sufficiently large volume flow with the lowest possible Pressure losses flow in and can flow through the suction chamber. The turbine is in this embodiment of the invention preferably a Pelton turbine or a flow-through cross-flow turbine. Alternatively it can be provided as a turbine and an axially impinged turbine, which is preferably driven by a sucked through a separate opening air flow. The air stream sucked through the separate opening is not loaded with dirt particles or drops of liquid and is used as a clean air flow exclusively for driving the turbine. In a portion of the suction chamber behind the roller space, the air flow sucked in through the suction opening and the air flow driving through the turbine are brought together.

Die schlitzförmige Saugöffnung erstreckt sich vorzugsweise parallel zur bodenseitigen Öffnung des Walzenraums und ist gemäß einer vorteilhaften Ausgestaltung der Erfindung in Arbeitsrichtung hinter der Öffnung des Walzenraums angeordnet. Bei einer Vorwärtsbewegung der Reinigungsvorrichtung über eine zu reinigende Bodenfläche wird das Reinigungsfluid auf die Reinigungswalze und/oder die Bodenfläche aufgegeben, durch die Rotation der Reinigungswalze auf der Bodenfläche verteilt und danach wieder ohne Unterbrechung des Bewegungsablaufes durch die schlitzförmigen Saugöffnung angesaugt. Die mittlere Verweildauer des Reinigungsfluides auf der Bodenfläche ist im Vergleich zum Stand der Technik kürzer. Die Verweildauer reicht aber aus, um Stäube und Schmutzpartikel mit der Reinigungsflüssigkeit zu benetzen, an die Flüssigkeit zu binden und zusammen mit der Flüssigkeit in der schlitzförmigen Saugöffnung wieder aufzunehmen. Zweckmäßig ist die Saugöffnung zumindest an ihrer von der Öffnung der Walzenkammer abgewandten Längsseite von einer Dichtungslippe begrenzt.The slot-shaped suction opening preferably extends parallel to the bottom-side opening of the roll chamber and is arranged according to an advantageous embodiment of the invention in the working direction behind the opening of the roll chamber. During a forward movement of the cleaning device over a floor surface to be cleaned, the cleaning fluid is applied to the cleaning roller and / or the bottom surface, distributed by the rotation of the cleaning roller on the bottom surface and then sucked back through the slot-shaped suction opening without interrupting the movement process. The average residence time of the cleaning fluid on the bottom surface is shorter compared to the prior art. However, the residence time is sufficient to wet dusts and dirt particles with the cleaning liquid, to bind to the liquid and to take up again together with the liquid in the slot-shaped suction opening. The suction opening is expediently delimited by a sealing lip, at least on its longitudinal side facing away from the opening of the roller chamber.

Die Reinigungsvorrichtung kann zum Reinigen von glatten Bodenflächen eingesetzt werden. Eine für diese Anwendung besonders bevorzugte Ausgestaltung der erfindungsgemäßen Vorrichtung sieht vor, dass das Gehäuse bodenseitige Laufrollen aufweist und dass die schlitzförmige Saugöffnung an beiden Längsseiten jeweils von einer flexiblen Lippe begrenzt ist, welche über die durch die Laufrollen vorgegebene Aufstandsfläche hinaus vorsteht. Die flexiblen Lippen biegen sich infolge der Überlänge sowohl bei einer Vorwärtsbewegung als auch bei einer Rückwärtsbewegung durch und sind so profiliert, dass die jeweils in Fahrtrichtung hintere Lippe mit einer glatten Arbeitskante als Abstreifer wirkt und dass die in Fahrtrichtung vordere Lippe durch eine Profilierung nicht vollflächig auf der Bodenfläche aufliegt, wobei zwischen der Lippe und der Bodenfläche Lücken verbleiben, durch die Luft und Flüssigkeit angesaugt werden kann. Gemäß einer bevorzugten Ausführung der Erfindung weisen die flexiblen Lippen auf ihrer dem Saugschlitz zugewandten Seite eine als Abstreifer wirkende glatte Arbeitskante auf und sind die Lippen auf ihrer vom Saugschlitz abgewandten Seite mit einer profilierten Fläche versehen. Die profilierte Fläche der Lippen kann insbesondere eine Rippenstruktur aufweisen.The cleaning device can be used for cleaning smooth floor surfaces. A particularly preferred embodiment for this application The device according to the invention provides that the housing has bottom-side rollers and that the slot-shaped suction opening is delimited on both longitudinal sides in each case by a flexible lip which projects beyond the contact surface predetermined by the rollers. The flexible lips bend due to the excess length in both a forward movement as well as a backward movement and are profiled so that the rear in each case rear lip with a smooth working edge acts as a scraper and that the front in the direction of travel lip by profiling not on the entire surface the bottom surface rests, leaving between the lip and the bottom surface gaps through which air and liquid can be sucked. According to a preferred embodiment of the invention, the flexible lips on their suction slot facing side acting as a scraper smooth working edge and the lips are provided on its side facing away from the suction slot side with a profiled surface. The profiled surface of the lips may in particular have a ribbed structure.

Gemäß einer weiteren vorteilhaften Ausgestaltung weist das Gehäuse der Reinigungsvorrichtung bodenseitige Vorsprünge auf, die mit geringem Abstand oberhalb der durch die Laufrollen vorgegebenen Aufstandsfläche enden und den Raum zwischen den flexiblen Lippen endseitig gegen Lufteintritt abschirmen. Diese Maßnahme trägt dazu bei, dass nur wenig Fremdluft angesaugt wird und sich unter der schlitzförmigen Saugöffnung ein wirksamer Unterdruck aufbauen kann.According to a further advantageous embodiment, the housing of the cleaning device on bottom side projections which terminate at a short distance above the predetermined by the rollers footprint and shield the space between the flexible lips end against air ingress. This measure contributes to the fact that only little external air is sucked in and an effective negative pressure can build up under the slot-shaped suction opening.

Die Einrichtung zur Abgabe des Reinigungsfluides weist mindestens eine Düse oder Auslassöffnung auf, die zweckmäßig im Walzenraum oberhalb der Rotationswalze angeordnet ist. Die Reinigungsflüssigkeit kann auf die Oberfläche der Reinigungswalze und/oder die zu reinigende Bodenfläche aufgegeben werden. Die Reinigungswalze ist mit Borstenbündel besteckt und/oder weist weiche Reinigungsbeläge, z. B. aus Filz, Schaumstoff, Fell o. dgl. auf. Die Beläge können auch miteinander kombiniert werden.The device for discharging the cleaning fluid has at least one nozzle or outlet opening, which is expediently arranged in the roller space above the rotation roller. The cleaning liquid can be applied to the surface of the cleaning roller and / or the floor surface to be cleaned. The cleaning roller is covered with bristle bundles and / or has soft cleaning pads, z. As felt, foam, fur o. The like. On. The pads can also be combined with each other.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen

Fig. 1
eine stark vereinfachte Schnittdarstellung einer erfindungsgemäßen Reinigungsvorrichtung zur Nassreinigung von Bodenflächen,
Fig. 2
eine bodenseitige Ansicht der Reinigungsvorrichtung.
In the following the invention will be explained with reference to a drawing showing only one embodiment. Show it
Fig. 1
a greatly simplified sectional view of a cleaning device according to the invention for wet cleaning of floor surfaces,
Fig. 2
a bottom view of the cleaning device.

Zum grundsätzlichen Aufbau der in den Figuren dargestellten Reinigungsvorrichtung gehören ein Gehäuse 1, das an seiner Unterseite eine schlitzförmige Saugöffnung 2 und einen bodenseitig offenen Walzenraum 3 mit einer drehbeweglich gelagerten Reinigungswalze 4 aufweist, eine Einrichtung 5 zur Abgabe eines Reinigungsfluides in den Walzenraum sowie ein mit dem Gehäuse 1 fest oder schwenkbeweglich verbundener Saugstutzen 6 zum Anschluss eines Saugaggregats. Im Gehäuse 1 ist ein Saugraum 7 angeordnet, der sich von der Saugöffnung 2 bis zu dem Saugstutzen 7 erstreckt und nicht mit dem Walzenraum 3 verbunden ist. Der Saugraum 7 umfasst eine Turbinenkammer 8 mit einer Turbine 9, die von einem in der Saugöffnung 2 angesaugten Luftstrom umströmt und/oder durchströmt wird und die Reinigungswalze 4 beispielsweise durch einen Keilriemen 10 antreibt. Der Keilriemen und die Anschlussritze können in einem wandnahen Hohlraum des Gehäuses 1 untergebracht sein.To the basic structure of the cleaning device shown in the figures include a housing 1, which has on its underside a slot-shaped suction opening 2 and a bottom open roller chamber 3 with a rotatably mounted cleaning roller 4, a device 5 for discharging a cleaning fluid in the roll chamber and a with the Housing 1 fixed or pivotally connected suction nozzle 6 for connecting a suction unit. In the housing 1, a suction chamber 7 is arranged, which extends from the suction opening 2 to the suction nozzle 7 and is not connected to the roll chamber 3. The suction chamber 7 comprises a turbine chamber 8 with a turbine 9, which flows around and / or flows through an air stream sucked in the suction opening 2 and drives the cleaning roller 4, for example by means of a V-belt 10. The V-belt and the connection tab can be accommodated in a wall cavity close to the housing 1.

Die schlitzförmige Saugöffnung 2 erstreckt sich parallel zur bodenseitigen Öffnung des Walzenraumes 3 und ist in Arbeitsrichtung hinter der Öffnung des Walzenraumes 3 angeordnet.The slot-shaped suction opening 2 extends parallel to the bottom-side opening of the roll chamber 3 and is arranged in the working direction behind the opening of the roll chamber 3.

Das Gehäuse 1 weist bodenseitige Laufrollen 11 auf. Die schlitzförmige Saugöffnung 2 ist an beiden Längsseiten jeweils von einer flexiblen Lippe 12 begrenzt, die über die durch die Laufrollen 11 vorgegebene Aufstandsfläche hinaus vorstehen. Die flexiblen Lippen 12 biegen sich infolge der Überlänge bei einer Bewegung der Reinigungsvorrichtung über die Bodenfläche durch. Aus Fig. 2 ist ersichtlich, dass die flexiblen Lippen 12 auf ihrer der Saugöffnung 2 zugewandten Seite eine als Abstreifer wirkende glatte Arbeitskante 13 aufweisen und dass die flexiblen Lippen 12 an ihrer vom Saugschlitz abgewandten Seite eine profilierte Fläche 14 weisen. Die profilierte Fläche 14 hat eine Rippenstruktur mit einer Vielzahl paralleler dreieckförmiger Rippen. Durch die beschriebene Anordnung und Profilierung der flexiblen Lippen 12 wird erreicht, dass die jeweils in Fahrtrichtung hinter Lippe mit einer glatten Arbeitskante als Abstreifer wirkt und dass die jeweils in Fahrtrichtung vordere Lippe nur auf den Rippen der profilierten Fläche 14 aufliegt wobei sich zwischen der Bodenfläche und der profilierten Fläche 14 Lücken bilden, durch die Wasser und Luft angesaugt werden kann.The housing 1 has bottom-side rollers 11. The slot-shaped suction opening 2 is delimited on both longitudinal sides by a flexible lip 12 which project beyond the contact surface predetermined by the rollers 11. The flexible lips 12 bend due to the excess length in a movement of the cleaning device on the bottom surface. Out Fig. 2 It can be seen that the flexible lips 12 have on their suction opening 2 side facing acting as a scraper smooth working edge 13 and that the flexible lips 12 have a profiled surface 14 on its side facing away from the suction slot. The profiled surface 14 has a rib structure with a plurality of parallel triangular ribs. The described arrangement and profiling of the flexible lips 12 ensures that each acts in the direction of travel behind the lip with a smooth working edge as a scraper and that each front in the direction of travel lip rests only on the ribs of the profiled surface 14 being between the bottom surface and form the profiled surface 14 gaps through which water and air can be sucked.

Aus Fig. 2 ist auch ersichtlich, dass das Gehäuse 1 bodenseitige Vorsprünge 15 aufweist, die mit geringem Abstand oberhalb der durch die Laufrollen 11 vorgegebenen Aufstandsfläche enden und den Raum zwischen den flexiblen Lippen 12 endseitig gegen Lufteintritt abschirmen.Out Fig. 2 is also apparent that the housing 1 has bottom projections 15 which terminate at a short distance above the predetermined by the rollers 11 footprint and shield the space between the flexible lips 12 end against air ingress.

Die Einrichtung 5 zur Abgabe des Reinigungsfluides weist mindestens eine Düse 18 oder Auslassöffnung auf, die im Walzenraum 3 oberhalb der Rotationsachse der Reinigungswalze 4 angeordnet ist. Das Reinigungsmittel wird auf die Reinigungswalze 4 und/oder auf die Bodenfläche aufgesprüht. Im Ausführungsbeispiel ist die Reinigungswalze 4 mit Borstenbündeln besteckt. Die Reinigungswalze kann auch weiche Reinigungsbeläge, z. B. Filzbeläge, Schaumstoffbeläge oder Fellbeläge aufweisen.The device 5 for discharging the cleaning fluid has at least one nozzle 18 or outlet opening, which is arranged in the roll chamber 3 above the axis of rotation of the cleaning roller 4. The cleaning agent is sprayed onto the cleaning roller 4 and / or on the bottom surface. In the exemplary embodiment, the cleaning roller 4 is covered with bristle bundles. The cleaning roller may also have soft cleaning pads, e.g. B. felt coverings, foam pads or fur coverings.

Claims (9)

  1. A cleaning device for wet cleaning floor areas with
    a housing (1), which on its underside features a slot-shaped intake opening (2) and a roller chamber (3) that is open on the floor side and accommodates a rotatably supported cleaning roller (4),
    a device (5) for dispensing a cleaning fluid into the roller chamber (3), and
    a suction pipe (6), which is rigidly or pivotably connected to the housing (1) and designed for being connected to a vacuum unit,
    wherein a suction chamber (7) extending from the intake opening (2) up to the suction pipe (6) is arranged in the housing (1) and not connected to the roller chamber (3), characterized in that the suction chamber (7) comprises a turbine chamber (16) with a turbine (17), around and/or through which an air current taken in through the intake opening (2) or a separate opening flows such that it drives the cleaning roller (4)
  2. The cleaning device according to claim 1, characterized in that the slot-shaped intake opening (2) extends parallel to the opening of the roller chamber (3) on the floor side and is arranged behind the opening of the roller chamber (3) referred to the working direction.
  3. The cleaning device according to claim 2, characterized in that the intake opening (2) is defined by a sealing lip at least on its far longitudinal side referred to the opening of the roller chamber (3).
  4. The cleaning device according to claim 1 or 2, characterized in that the housing (1) features rollers (11) on the floor side, and in that the slot-shaped intake opening (2) is on both longitudinal sides defined by a respective flexible lip (12) that protrudes over the contact area defined by the rollers (11).
  5. The cleaning device according to claim 4, characterized in that the flexible lips (12) have a smooth working edge (13) that acts as a stripper on their near side referred to the intake opening (2), and in that the flexible lips (12) have a profiled surface (14) on their far side referred to the intake opening (2).
  6. The cleaning device according to one of claims 1-5, characterized in that the profiled surface (14) of the lips (12) has a rib structure.
  7. The cleaning device according to one of claims 1-6, characterized in that the housing (1) features on the floor side projections (15) that end slightly above the contact area defined by the rollers (11) and shield the space between the flexible lips (12) against the admission of air on its ends.
  8. The cleaning device according to one of claims 1-7, characterized in that the device (5) for dispensing the cleaning fluid features at least one nozzle (18) or outlet opening that is arranged in the roller chamber (3) above the rotational axis of the cleaning roller (4).
  9. The cleaning device according to one of claims 1-8, characterized in that the cleaning roller (4) is fitted with bristle clusters and/or features soft cleaning pads.
EP14151426.5A 2013-07-08 2014-01-16 Cleaning device for the wet cleaning of floor surfaces Active EP2823746B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013103015 2013-07-08
DE201320103961 DE202013103961U1 (en) 2013-07-08 2013-09-03 Cleaning device for wet cleaning of floor surfaces

Publications (3)

Publication Number Publication Date
EP2823746A2 EP2823746A2 (en) 2015-01-14
EP2823746A3 EP2823746A3 (en) 2015-01-21
EP2823746B1 true EP2823746B1 (en) 2015-12-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14151426.5A Active EP2823746B1 (en) 2013-07-08 2014-01-16 Cleaning device for the wet cleaning of floor surfaces

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EP (1) EP2823746B1 (en)
DE (1) DE202013103961U1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014100004A1 (en) * 2014-01-02 2015-07-02 Miele & Cie. Kg Suction unit for vacuum cleaners
CN106983446B (en) * 2017-05-17 2019-02-15 江苏美的清洁电器股份有限公司 Ducting part and floor brush of dust collector
CN107115068B (en) * 2017-05-30 2024-02-13 扬州金威环保科技有限公司 Cleaning dust return system for floor cleaning machine
DE102017118378A1 (en) * 2017-08-11 2019-02-14 Vorwerk & Co. Interholding Gmbh Soil cultivation device with an electric motor driven soil cultivation element
DE102018105461A1 (en) 2018-03-09 2019-09-12 Carl Freudenberg Kg cleaner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699607A (en) 1970-07-07 1972-10-24 Town & Country Cleaners Franch Carpet cleaning apparatus
DE102007029258A1 (en) * 2007-06-15 2008-12-18 Alfred Kärcher Gmbh & Co. Kg Floor cleaning device
US8214968B2 (en) * 2008-01-17 2012-07-10 Bissell Homecare, Inc. Vacuum accessory tool

Also Published As

Publication number Publication date
DE202013103961U1 (en) 2013-09-16
EP2823746A3 (en) 2015-01-21
EP2823746A2 (en) 2015-01-14

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