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WO1994009691A1 - Mobile floor-cleaning machine - Google Patents

Mobile floor-cleaning machine Download PDF

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Publication number
WO1994009691A1
WO1994009691A1 PCT/EP1993/002903 EP9302903W WO9409691A1 WO 1994009691 A1 WO1994009691 A1 WO 1994009691A1 EP 9302903 W EP9302903 W EP 9302903W WO 9409691 A1 WO9409691 A1 WO 9409691A1
Authority
WO
WIPO (PCT)
Prior art keywords
floor
suction nozzle
cleaning device
suction
floor cleaning
Prior art date
Application number
PCT/EP1993/002903
Other languages
German (de)
French (fr)
Inventor
Franz Kresse
Rainer Osberghaus
Hans-Leo Fernschild
Original Assignee
Henkel-Ecolab Gmbh & Co. Ohg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel-Ecolab Gmbh & Co. Ohg filed Critical Henkel-Ecolab Gmbh & Co. Ohg
Publication of WO1994009691A1 publication Critical patent/WO1994009691A1/en

Links

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
    • A47L11/29—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
    • 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
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0009—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid

Definitions

  • the invention is directed to a mobile floor cleaning device with an integrated dirt collecting chamber in which, in the operating state, there is a negative pressure generated by a suction blower integrated in the floor cleaning device and into which a hose line connected to a suction nozzle attached to the floor cleaning device near the floor opens.
  • Devices of this type are known as dust and water vacuum cleaners or, if they are provided on the floor with a rotating brush and a liquid sprayed onto the floor from a fresh liquid compartment integrated in the device in the region of the brush, as a floor scrubbing machine.
  • the dirt liquor is sucked into the dirt collecting chamber integrated in the device via a suction nozzle attached to the device near the floor and preferably sliding on rubber tips on the floor.
  • the floor cleaning device is pushed over the moist cleaning surface, the suction result very much depending on whether the elastic lips sliding along the floor lie perfectly on the floor over their entire length.
  • suction lips which on the one hand have to be sufficiently supple but on the other hand also have to be sufficiently resistant to abrasion, usually consist of rubber.
  • coarse dirt such as straws, grass, twine, paper snippets, cigarette ends or the like
  • the suction result is greatly adversely affected. Stripes and streaks form on the surface that is no longer properly vacuumed.
  • the floor cleaning device In order to remove the annoying coarse dirt, the floor cleaning device must be stopped every time and the coarse dirt must be placed under the lips of the suction nozzle by hand be preferred.
  • the object of the invention is to significantly reduce the impairment of the performance and the suction result by coarse dirt in such devices.
  • this object is achieved according to the invention in that, in front of the front face of the suction nozzle in the direction of travel, a coarse dirt rake, preferably in the form of a Brush strip, is arranged.
  • the invention prevents coarse dirt which is still on the floor surface which is still moist and to be vacuumed from getting under the suction lips of the suction nozzle when the floor cleaning device is being moved.
  • the coarse dirt is picked up by the brush strip and pushed in front of the suction nozzle. Since the floor surface in the operating state in the area in front of the suction nozzle is moist, the coarse dirt floats on a thin water film and is easy to move with the coarse dirt rake, preferably in the form of a brush strip. Only when a sufficient accumulation of coarse dirt has accumulated in front of the brush strip will the operating personnel expediently stop the floor cleaning device and suck off the accumulated coarse dirt from the floor by lifting the suction nozzle. The cleaning of the floor surface now only needs to be interrupted very rarely and then at a time to be determined by the operating personnel. In the meantime, the cleaning result is not impaired by the coarse dirt pushed in front of the suction nozzle.
  • the invention provides in one embodiment that the brush strip has a series of at a distance of 2 to 10 mm spaced bristle bundles, preferably of relatively stiff bristles.
  • the brush strip is rigidly but height-adjustable, connected to the suction nozzle. In this way, the brush strip performs all the movements of the suction nozzle and quite the coarse dirt in front of the suction nozzle.
  • Fig. 1 is a perspective view of a mobile floor cleaning device with coarse dirt rake arranged on the suction nozzle and in
  • Fig. 2 is a perspective view of a coarse dirt rake.
  • the mobile floor cleaning device shown in FIG. 1 has a carriage, generally designated 1, with castors 2 and a handlebar 3 with an operating device (not shown).
  • a large part of the interior of the carriage 1 is occupied by a liquid tank, generally designated 4, which can be closed with a cover 5.
  • the liquid tank 4 consists of a fresh water compartment and a dirt collecting chamber designed as a waste water compartment.
  • a cleaning rotor 6 On the underside of the carriage 1, a cleaning rotor 6 is shown, which can be driven by an invisible drive.
  • a beam-shaped suction nozzle 7 is arranged in the rear region of the carriage in the direction of travel of the carriage 1, ie on the side of the driving rollers 2 facing away from the cleaning rotor 6. It slides with rubber suction lips 7a along the floor surface to be cleaned.
  • a suction fan which is also not shown and is arranged inside the carriage 1, generates a negative pressure in the operating state which is sufficient to remove dirt, that is to say a dirt liquor, via the suction nozzle 7 and the hose line 8 and / or dirt or dust particles to be sucked up from the floor and into the dirt collecting chamber.
  • the suction nozzle 7 is rigidly and firmly attached to a nozzle holder 10, which in turn is arranged on a fastening element 11 attached to the carriage 1, which is pressed by an elastic spring element in the direction of the floor to be cleaned. With the aid of the fastening element 11 and the spring element 12, the suction nozzle 7 with its suction lips 7a is pressed well onto the floor to be cleaned.
  • the suction nozzle 7 can also be lifted a few millimeters from the floor surface to be cleaned.
  • a lever 13 is connected to the nozzle holder 10 via a nozzle lifter cable 14. By actuating the lever 13, the nozzle holder 10 and thus the suction nozzle 7 can be raised slightly.
  • the suction nozzle 7 is fixed and rigid on the nozzle holder 10 and the nozzle holder 10 is also rigid and fixed on the fastening element 11.
  • the fastening element 11 is mounted in such a way that the above-described movements upwards or downwards and lateral pivoting movements are possible.
  • the suction nozzle 7 is thus attached to the carriage 1 in such a way that it is always moved with the carriage 1 in the same relative position and position.
  • a coarse dirt rake 15 is fastened in front of the front face of the suction nozzle 7 in the direction of travel.
  • About spacers 16 is provided with bristle bundles 17 of relatively stiff bristle bar 18 rigid and fixed at a distance of 0.5 to 2 cm in front of the front surface of the bar-shaped suction nozzle 7, so that the coarse dirt rake 15 always the same relative position during operation Carriage 1 and the suction nozzle 7 maintains.
  • the strip 18 has elongated holes in which the spacers 16 are fastened, so that the strip 18 is fastened in front of the suction nozzle 7 in a height-adjustable manner.
  • the bristle bundles 17 arranged on the brush strip 18 are each at a distance of 2 to 10 mm from one another, so that a sufficiently large opening cross section remains between the individual bristle bundles 17, which allows the dirty liquor located on the floor to be cleaned, between the bristle bundles 17 to pass through and to be sucked up by the suction nozzle 7. Only coarse dirt is retained from the bristles of the bristle bundle 17 reaching down to the floor to be cleaned. As soon as in the cleaning company certain proportion of coarse dirt such as B.
  • the coarse dirt rake 15 is preferably designed to be somewhat shorter than the suction nozzle 7, but it can also be of the same length or can also protrude laterally beyond the suction nozzle 7.

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  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)

Abstract

The invention concerns a mobile floor-cleaning machine (1) with an integral dirt-collection chamber in which, when the machine is operating, an underpressure is generated by a suction fan integral with the floor-cleaning machine and into which a hose line (8) passes which is connected to a suction head (7) attached to the machine (1) close to the floor, the aim of the invention being to reduce significantly the effect of coarse dirt particles on the suction power andaction. This aim is achieved by virtue of the fact that a rake attachment (15) for coarse dirt particles, preferably in the form of a strip brush (18), which extends down to the floor, is fitted to the front of the suction head (i.e. the side facing in the direction of travel of the machine) a short distance (preferably 0.5 to 2 cm) in front of the suction head.

Description

"Fahrbares Bodenreiniqunqsqerät""Mobile floor cleaning device"
Die Erfindung richtet sich auf ein fahrbares Bodenreinigungsgerät mit in¬ tegrierter SchmutzsammeIkammer in der im Betriebszustand ein mittels eines im Bodenreinigungsgerät integrierten Sauggebläses erzeugter Unterdruck herrscht und in die eine mit einer bodennah am Bodenreinigungsgerät befe¬ stigten Saugdüse verbundene Schlauchleitung einmündet.The invention is directed to a mobile floor cleaning device with an integrated dirt collecting chamber in which, in the operating state, there is a negative pressure generated by a suction blower integrated in the floor cleaning device and into which a hose line connected to a suction nozzle attached to the floor cleaning device near the floor opens.
Derartige Geräte sind als Staub- und Wassersauger oder, wenn sie boden- seitig mit einer rotierenden Bürste und einer im Bereich der Bürste aus einem in dem Gerät integrierten Frischflüssigkeitsabteil entnommene Flüs¬ sigkeit auf den Boden versprühenden Leitung versehen sind, als Boden¬ schrubbmaschine bekannt. Mit diesen fahrbaren Bodenreinigungsgeräten wird über eine bodennah an dem Gerät befestigte und vorzugsweise auf GummiTip¬ pen auf dem Boden entlanggleitende Saugdüse auf dem Boden befindliche Flüssigkeit, die Schmutzflotte, in die im Gerät integrierte Schmutzsam¬ meikammer eingesaugt. Im Betrieb wird das Bodenreinigungsgerät über die feuchte Reinigungsfläche geschoben, wobei das Saugergebnis sehr stark da¬ von abhängt, ob die auf dem Boden entlanggleitenden elastischen Lippen über ihre gesamte Länge einwandfrei auf dem Boden aufliegen. Diese Saug¬ lippen, die einerseits ausreichend geschmeidig, andererseits aber auch ausreichend abriebfest ausgebildet sein müssen, bestehen üblicherweise aus Gummi. Beim Betrieb des Bodenreinigungsgerätes stellt sich nun der Nach¬ teil ein, daß Grobschmutz, wie Strohhalme, Gras, Bindfäden, Papierschnip¬ sel, Zigarettenstummel oder ähnliches unter die Auflagefläche der Gummi¬ lippen gezogen und zwischen Gummilippe und Bodenfläche eingeklemmt beim Verfahren des Bodenreinigungsgerätes mitgeschleift wird. Hierdurch wird das Saugergebnis stark nachteilig beeinflußt. Es bilden sich Streifen und Schlieren auf der nicht mehr einwandfrei abgesaugten Fläche. Um den stö¬ renden Grobschmutz zu beseitigen, muß das Bodenreinigungsgerät jedes Mal angehalten und der Grobschmutz von Hand unter den Lippen der Saugdüse vorgezogen werden. Dies ist ein relativ mühsamer Vorgang, für den außerdem der Reinigungsprozeß unterbrochen, d. h. das Bodenreinigungsgerät ange¬ halten werden muß. In der Regel erkennt das Bedienungspersonal die nicht mehr einwandfreie Funktion der Saugdüse erst, wenn bereits Arbeitsflächen mit einem unbefriedigenden Ergebnis bearbeitet worden sind, die dann noch einmal nachgearbeitet werden müssen.Devices of this type are known as dust and water vacuum cleaners or, if they are provided on the floor with a rotating brush and a liquid sprayed onto the floor from a fresh liquid compartment integrated in the device in the region of the brush, as a floor scrubbing machine. With these mobile floor cleaning devices, the dirt liquor is sucked into the dirt collecting chamber integrated in the device via a suction nozzle attached to the device near the floor and preferably sliding on rubber tips on the floor. In operation, the floor cleaning device is pushed over the moist cleaning surface, the suction result very much depending on whether the elastic lips sliding along the floor lie perfectly on the floor over their entire length. These suction lips, which on the one hand have to be sufficiently supple but on the other hand also have to be sufficiently resistant to abrasion, usually consist of rubber. When the floor cleaning device is in operation, the disadvantage arises that coarse dirt, such as straws, grass, twine, paper snippets, cigarette ends or the like, is pulled under the contact surface of the rubber lips and clamped between the rubber lip and floor surface when the floor cleaning device is moved . As a result, the suction result is greatly adversely affected. Stripes and streaks form on the surface that is no longer properly vacuumed. In order to remove the annoying coarse dirt, the floor cleaning device must be stopped every time and the coarse dirt must be placed under the lips of the suction nozzle by hand be preferred. This is a relatively tedious process, for which the cleaning process must also be interrupted, ie the floor cleaning device must be stopped. As a rule, the operating personnel only recognize that the suction nozzle is no longer functioning properly when work surfaces with an unsatisfactory result have already been worked on and then have to be reworked.
Aufgabe der Erfindung ist es, bei derartigen Geräten die Beeinträchtigung der Leistung und des Saugergebnisses durch Grobschmutz deutlich zu ver¬ mindern.The object of the invention is to significantly reduce the impairment of the performance and the suction result by coarse dirt in such devices.
Bei einem fahrbaren Bodenreinigungsgerät der eingangs bezeichneten Art wird diese Aufgabe gemäß der Erfindung dadurch gelöst, daß vor der in Fahrtrichtung vorderen Frontfläche der Saugdüse mit geringem Abstand von vorzugsweis 0,5 bis 2 cm ein auf die Bodenfläche reichender Grobschmutz¬ rechen, vorzugsweise in Form einer Bürstenleiste, angeordnet ist.In the case of a mobile floor cleaning device of the type mentioned at the outset, this object is achieved according to the invention in that, in front of the front face of the suction nozzle in the direction of travel, a coarse dirt rake, preferably in the form of a Brush strip, is arranged.
Mit der Erfindung wird verhindert, daß auf der noch feuchten und abzusau¬ genden Bodenfläche befindlicher Grobschmutz beim Verfahren des Bodenrei¬ nigungsgerätes unter die Sauglippen der Saugdüse gelangt. Der Grobschmutz wird von der Bürstenleiste erfaßt und vor der Saugdüse hergeschoben. Da die Bodenfläche im Betriebszustand im Bereich vor der Saugdüse feucht ist, schwimmt der Grobschmutz auf einem dünnen Wasserf lm und ist mit dem vor¬ zugsweise in Form einer Bürstenleiste ausgebildeten Grobschmutzrechen leicht zu bewegen. Erst wenn sich eine ausreichende Anhäufung von Grob¬ schmutz vor der Bürstenleiste angesammelt hat, wird das Bedienungspersonal das Bodenreinigungsgerät zweckmäßigerweise anhalten und den angesammelten Grobschmutz durch Anheben der Saugdüse vom Boden absaugen. Die Reinigung der Bodenfläche braucht nun nur noch sehr selten und dann zu einem vom Bedienungspersonal zu bestimmenden Zeitpunkt unterbrochen zu werden. Zwi¬ schenzeitlich wird das Reinigungsergebnis durch den vor der Saugdüse her¬ geschobenen Grobschmutz nicht beeinträchtigt.The invention prevents coarse dirt which is still on the floor surface which is still moist and to be vacuumed from getting under the suction lips of the suction nozzle when the floor cleaning device is being moved. The coarse dirt is picked up by the brush strip and pushed in front of the suction nozzle. Since the floor surface in the operating state in the area in front of the suction nozzle is moist, the coarse dirt floats on a thin water film and is easy to move with the coarse dirt rake, preferably in the form of a brush strip. Only when a sufficient accumulation of coarse dirt has accumulated in front of the brush strip will the operating personnel expediently stop the floor cleaning device and suck off the accumulated coarse dirt from the floor by lifting the suction nozzle. The cleaning of the floor surface now only needs to be interrupted very rarely and then at a time to be determined by the operating personnel. In the meantime, the cleaning result is not impaired by the coarse dirt pushed in front of the suction nozzle.
Um die auf dem Boden befindliche Schmutzflotte nicht vor dem Grobschmutz¬ rechen bzw. der Bürstenleiste aufzustauen und herzuschieben, sieht die Erfindung in Ausgestaltung vor, daß die Bürstenleiste eine Reihe von in einem Abstand von jeweils 2 bis 10 mm zueinander beabstandeten Borsten¬ bündeln, vorzugsweise aus relativ steifen Borsten, aufweist.In order not to accumulate and push the dirty liquor on the floor in front of the coarse dirt rake or the brush strip, the invention provides in one embodiment that the brush strip has a series of at a distance of 2 to 10 mm spaced bristle bundles, preferably of relatively stiff bristles.
Gemäß weiterer Ausgestaltung der Erfindung ist es auch zweckmäßig, daß die Bürstenleiste starr, aber höhenverstellbar, mit der Saugdüse verbunden ist. Auf diese Weise vollzieht die Bürstenleiste alle Bewegungen der Saugdüse mit und recht den Grobschmutz vor der Saugdüse zusammen.According to a further embodiment of the invention, it is also expedient that the brush strip is rigidly but height-adjustable, connected to the suction nozzle. In this way, the brush strip performs all the movements of the suction nozzle and quite the coarse dirt in front of the suction nozzle.
Die Erfindung ist nachstehend anhand der Zeichnung beispielsweise näher erläutert. Diese zeigt inThe invention is explained below with reference to the drawing, for example. This shows in
Fig. 1 in perspektivischer Darstellung ein fahrbares Bodenreinigungsgerät mit an der Saugdüse angeordnetem Grobschmutzrechen und inFig. 1 is a perspective view of a mobile floor cleaning device with coarse dirt rake arranged on the suction nozzle and in
Fig. 2 in perspektivischer Darstellung einen Grobschmutzrechen.Fig. 2 is a perspective view of a coarse dirt rake.
Das in Fig. 1 dargestellte fahrbare Bodenreinigungsgerät weist einen ins¬ gesamt mit 1 bezeichneten Wagen mit Fahrrollen 2 und einem Lenker 3 mit nicht näher dargestellter Bedienungseinrichtung auf. Einen großen Teil des Inneren des Wagens 1 nimmt ein insgesamt mit 4 bezeichneter Flüssigkeits¬ tank ein, der mit einem Deckel 5 verschließbar ist. Der Flüssigkeitstank 4 besteht aus einem Frischwasserabteil und einer als Schmutzwasserabteil ausgebildeten Schmutzsammelkammer.The mobile floor cleaning device shown in FIG. 1 has a carriage, generally designated 1, with castors 2 and a handlebar 3 with an operating device (not shown). A large part of the interior of the carriage 1 is occupied by a liquid tank, generally designated 4, which can be closed with a cover 5. The liquid tank 4 consists of a fresh water compartment and a dirt collecting chamber designed as a waste water compartment.
An der Unterseite des Wagens 1 ist ein Reinigungsrotor 6 dargestellt, der von einem nicht sichtbaren Antrieb angetrieben werden kann. Im in Fahr¬ richtung des Wagens 1 rückwärtigen Unterbereich des Wagens, d. h. auf der vom Reinigungsrotor 6 abgewandten Seite der Fahrrollen 2, ist eine balkenför ige Saugdüse 7 angeordnet. Sie gleitet mit Sauglippen 7a aus Gummi auf der zu reinigenden Bodenfläche entlang. An der Saugdüse 7 ist eine Schlauchleitung 8 mit Stutzen 9 angeordnet, die in die Schmutzsam¬ meikammer einmündet, die bei dem dargestellten Gerätetyp als Schmutzwas¬ serabte l ausgebildet ist. In der Schmutzsammelkammer wird durch ein ebenfalls nicht dargestelltes, innerhalb des Wagens 1 angeordnetes Saug¬ gebläse im Betriebszustand ein Unterdruck erzeugt, der ausreicht, um über die Saugdüse 7 und die Schlauchleitung 8 Schmutz, d. h. Schmutzflotte und/oder Schmutz- oder Staubpartikel, vom Boden auf- und in die Schmutz- sammelkammer einzusaugen. Die Saugdüse 7 ist starr und fest an einer Düsenhalterung 10 befestigt, welche wiederum an einem am Wagen 1 befe¬ stigten Befestigungselement 11 angeordnet ist, welches von einem ela¬ stischen Federelement in Richtung des zu reinigenden Bodens gedrückt wird. Mit Hilfe des Befestigungselementes 11 und des Federelementes 12 wird die Saugdüse 7 mit ihren Sauglippen 7a gut auf den zu reinigenden Boden ange¬ drückt. Unter Überwindung der entgegenstehenden Kraft des Federelementes 12 ist die Saugdüse 7 aber auch um wenige Millimeter von der zu reinigen¬ den Bodenfläche abzuheben. Hierzu ist ein Hebel 13 über ein Düsenheberka- bel 14 mit der Düsenhalterung 10 verbunden. Durch Betätigung des Hebels 13 kann die Düsenhalterung 10 und damit die Saugdüse 7 geringfügig angehoben werden. Die Saugdüse 7 ist fest und starr an der Düsenhalterung 10 und die Düsenhalterung 10 ist ebenfalls starr und fest an dem Befestigungselement 11 angeordnet. Das Befestigungselement 11 ist derart gelagert, daß die vorstehend beschriebenen Bewegungen nach oben oder unten sowie seitliche Schwenkbewegungen möglich sind. Die Saugdüse 7 ist damit derart an dem Wagen 1 befestigt, daß sie in immer gleicher Relativstellung und -läge zum Wagen 1 mit diesem mitbewegt wird.On the underside of the carriage 1, a cleaning rotor 6 is shown, which can be driven by an invisible drive. A beam-shaped suction nozzle 7 is arranged in the rear region of the carriage in the direction of travel of the carriage 1, ie on the side of the driving rollers 2 facing away from the cleaning rotor 6. It slides with rubber suction lips 7a along the floor surface to be cleaned. On the suction nozzle 7 there is a hose line 8 with a nozzle 9 which opens into the dirt collecting chamber, which is designed as a waste water filter in the device type shown. In the dirt collecting chamber, a suction fan, which is also not shown and is arranged inside the carriage 1, generates a negative pressure in the operating state which is sufficient to remove dirt, that is to say a dirt liquor, via the suction nozzle 7 and the hose line 8 and / or dirt or dust particles to be sucked up from the floor and into the dirt collecting chamber. The suction nozzle 7 is rigidly and firmly attached to a nozzle holder 10, which in turn is arranged on a fastening element 11 attached to the carriage 1, which is pressed by an elastic spring element in the direction of the floor to be cleaned. With the aid of the fastening element 11 and the spring element 12, the suction nozzle 7 with its suction lips 7a is pressed well onto the floor to be cleaned. Overcoming the opposing force of the spring element 12, however, the suction nozzle 7 can also be lifted a few millimeters from the floor surface to be cleaned. For this purpose, a lever 13 is connected to the nozzle holder 10 via a nozzle lifter cable 14. By actuating the lever 13, the nozzle holder 10 and thus the suction nozzle 7 can be raised slightly. The suction nozzle 7 is fixed and rigid on the nozzle holder 10 and the nozzle holder 10 is also rigid and fixed on the fastening element 11. The fastening element 11 is mounted in such a way that the above-described movements upwards or downwards and lateral pivoting movements are possible. The suction nozzle 7 is thus attached to the carriage 1 in such a way that it is always moved with the carriage 1 in the same relative position and position.
Vor der in Fahrtrichtung vorderen Frontfläche der Saugdüse 7 ist mit ge¬ ringem Abstand ein Grobschmutzrechen 15 befestigt. Über Distanzhalter 16 ist die mit Borstenbündeln 17 aus relativ steifen Borsten versehene Leiste 18 starr und fest in einem Abstand von 0,5 bis 2 cm vor der Frontfläche der balkenförmigen Saugdüse 7 befestigt, so daß der Grobschmutzrechen 15 während des Betriebes immer dieselbe relative Lage zum Wagen 1 und zur Saugdüse 7 beibehält. Die Leiste 18 weist Langlöcher auf, in denen die Distanzhalter 16 befestigt sind, so daß die Leiste 18 höhenverstellbar vor der Saugdüse 7 befestigt ist. Die an der Bürstenleiste 18 angeordneten Borstenbündel 17 weisen jeweils einen Abstand von 2 bis 10 mm zueinander auf, so daß ein genügend großer Öffnungsquerschnitt zwischen den einzelnen Borstenbündel 17 verbleibt, der der auf dem zu reinigenden Boden befind¬ lichen Schmutzflotte erlaubt, zwischen den Borstenbündeln 17 hindurchzu¬ treten und von der Saugdüse 7 aufgesaugt zu werden. Von den bis auf den zu reinigenden Boden reichenden Borsten der Borstenbündel 17 wird lediglich grober Schmutz zurückgehalten. Sobald sich im Reinigungsbetrieb ein gewisser Anteil an Grobschmutz wie z. B. Strohhalme, Gras, Bindfäden, Pa¬ pierschnipsel, Zigarettenstummel oder ähnliches vor dem Grobschmutzrechen 15 angesammelt hat, wird vom Bedienungspersonal der Reinigungswagen 1 kurz angehalten, die Saugdüse 7 mittels des Hebels 13 und des Düsenheberkabels 14 angehoben und durch geringfügiges erneutes Vorwärtsbewegen des Wagens 1 und Wiederabsenken der Saugdüse 7 der Grobschmutz vom Boden abgesaugt. Anschließend kann der Wagen 1 wieder im normalen Reinigungsbetriebszustand verfahren werden. Der Grobschmutzrechen 15 ist vorzugsweise etwas kürzer als die Saugdüse 7 ausgebildet, er kann aber auch gleich lang oder auch seitlich über die Saugdüse 7 überstehend ausgebildet sein. A coarse dirt rake 15 is fastened in front of the front face of the suction nozzle 7 in the direction of travel. About spacers 16 is provided with bristle bundles 17 of relatively stiff bristle bar 18 rigid and fixed at a distance of 0.5 to 2 cm in front of the front surface of the bar-shaped suction nozzle 7, so that the coarse dirt rake 15 always the same relative position during operation Carriage 1 and the suction nozzle 7 maintains. The strip 18 has elongated holes in which the spacers 16 are fastened, so that the strip 18 is fastened in front of the suction nozzle 7 in a height-adjustable manner. The bristle bundles 17 arranged on the brush strip 18 are each at a distance of 2 to 10 mm from one another, so that a sufficiently large opening cross section remains between the individual bristle bundles 17, which allows the dirty liquor located on the floor to be cleaned, between the bristle bundles 17 to pass through and to be sucked up by the suction nozzle 7. Only coarse dirt is retained from the bristles of the bristle bundle 17 reaching down to the floor to be cleaned. As soon as in the cleaning company certain proportion of coarse dirt such as B. straws, grass, twine, paper snippets, cigarette butts or the like has accumulated before the coarse dirt rake 15, the operator stops the cleaning trolley 1 briefly, the suction nozzle 7 is raised by means of the lever 13 and the nozzle lifter cable 14 and is moved forward again slightly by slight forward movement 1 and lowering the suction nozzle 7 of the coarse dirt is sucked off the floor. The carriage 1 can then be moved back to the normal cleaning operating state. The coarse dirt rake 15 is preferably designed to be somewhat shorter than the suction nozzle 7, but it can also be of the same length or can also protrude laterally beyond the suction nozzle 7.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Fahrbares Bodenreinigungsgerät (1) mit integrierter Schmutzsammelkam¬ mer in der im Betriebszustand ein mittels eines im Bodenreinigungs¬ gerät integrierten Sauggebläses erzeugter Unterdruck herrscht und in die eine mit einer bodennah am Bόdenreinigungsgerät (1) befestigten Saugdüse (7) verbundene Schlauchleitung (8) einmündet, dadurch gekennzeichnet, daß vor der in Fahrtrichtung vorderen Frontfläche der Saugdüse (7) mit geringem Abstand von vorzugsweise 0,5 bis 2 cm ein auf die Bodenfläche reichender Grobschmutzrechen (15), vorzugsweise in Form einer Bür¬ stenleiste (18), angeordnet ist.1. Mobile floor cleaning device (1) with integrated dirt collecting chamber in which in the operating state there is a negative pressure generated by a suction blower integrated in the floor cleaning device and into which a hose line (8) connected to a floor nozzle on the floor cleaning device (1) is connected flows out, characterized in that a coarse dirt rake (15), preferably in the form of a brush strip (18), is arranged in front of the front face of the suction nozzle (7) in the direction of travel, with a small distance of preferably 0.5 to 2 cm is.
2. Fahrbares Bodenreinigungsgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Bürstenleiste (18) eine Reihe von in einem Abstand von jeweils 2 bis 10 mm zueinander beabstandeten Borstenbündeln (17), vorzugsweise aus relativ steifen Borsten, aufweist.2. Mobile floor cleaning device according to claim 1, characterized in that the brush strip (18) has a series of bristle bundles (17) spaced from each other at a distance of 2 to 10 mm, preferably made of relatively stiff bristles.
3. Fahrbares Bodenreinigungsgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Bürstenleiste (18) starr, aber höhenverstellbar, mit der Saugdüse (7) verbunden ist. 3. Mobile floor cleaning device according to claim 1 or 2, characterized in that the brush strip (18) is rigid, but adjustable in height, with the suction nozzle (7).
PCT/EP1993/002903 1992-10-28 1993-10-20 Mobile floor-cleaning machine WO1994009691A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4236404 1992-10-28
DEP4236404.3 1992-10-28

Publications (1)

Publication Number Publication Date
WO1994009691A1 true WO1994009691A1 (en) 1994-05-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD965928S1 (en) * 2018-05-01 2022-10-04 David K. Thatcher Mopping machine
USD965927S1 (en) * 2018-05-01 2022-10-04 David K. Thatcher Mopping machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1111899A (en) * 1965-11-01 1968-05-01 Vacwash Ind Corp Proprietary L Improvements in or relating to suction cleaning machines
FR2299001A1 (en) * 1975-01-30 1976-08-27 Novacel Sa Combined brush and sponge for floors and walls - with cleaning liquid sprayed in front of brush picked up by suction pad fitted behind
EP0310093A2 (en) * 1987-10-02 1989-04-05 Tennant Company Scrubber brush drive with concentrically pivoted squeegee
WO1990000364A1 (en) * 1988-07-09 1990-01-25 Henkel Kommanditgesellschaft Auf Aktien Floor cleaning device
DE4122280A1 (en) * 1991-07-05 1993-01-14 Henkel Kgaa MOBILE FLOOR CLEANING MACHINE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1111899A (en) * 1965-11-01 1968-05-01 Vacwash Ind Corp Proprietary L Improvements in or relating to suction cleaning machines
FR2299001A1 (en) * 1975-01-30 1976-08-27 Novacel Sa Combined brush and sponge for floors and walls - with cleaning liquid sprayed in front of brush picked up by suction pad fitted behind
EP0310093A2 (en) * 1987-10-02 1989-04-05 Tennant Company Scrubber brush drive with concentrically pivoted squeegee
WO1990000364A1 (en) * 1988-07-09 1990-01-25 Henkel Kommanditgesellschaft Auf Aktien Floor cleaning device
DE4122280A1 (en) * 1991-07-05 1993-01-14 Henkel Kgaa MOBILE FLOOR CLEANING MACHINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD965928S1 (en) * 2018-05-01 2022-10-04 David K. Thatcher Mopping machine
USD965927S1 (en) * 2018-05-01 2022-10-04 David K. Thatcher Mopping machine

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