EP0727171A2 - Device for floor treating machines - Google Patents

Device for floor treating machines Download PDF

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Publication number
EP0727171A2
EP0727171A2 EP95117890A EP95117890A EP0727171A2 EP 0727171 A2 EP0727171 A2 EP 0727171A2 EP 95117890 A EP95117890 A EP 95117890A EP 95117890 A EP95117890 A EP 95117890A EP 0727171 A2 EP0727171 A2 EP 0727171A2
Authority
EP
European Patent Office
Prior art keywords
brush
brush roller
inner part
floor
axis
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP95117890A
Other languages
German (de)
French (fr)
Other versions
EP0727171B1 (en
EP0727171A3 (en
Inventor
Thomas Stein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stein and Co GmbH
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Stein and Co GmbH
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 Stein and Co GmbH filed Critical Stein and Co GmbH
Publication of EP0727171A2 publication Critical patent/EP0727171A2/en
Publication of EP0727171A3 publication Critical patent/EP0727171A3/en
Application granted granted Critical
Publication of EP0727171B1 publication Critical patent/EP0727171B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0444—Gearing or transmission means therefor for conveying motion by endless flexible members, e.g. belts

Definitions

  • the invention relates to a device for floor care devices, in particular carpet cleaning devices, in the form of a brush vacuum cleaner with a driven brush roller, the brush roller being arranged in a brush attachment facing the floor with rollers or sliding elements and for adapting the brush roller to the existing working conditions, such as the nature of the surface and Brush wear, elements for adjusting the brush roller to the floor are arranged.
  • the object of the invention is to improve known arrangements and to create a relative movement between the brush and base strips in order to enable the brush to be adjusted without changing the sealing gap.
  • the brush roller with its drive is arranged in an adjustable inner part with the formation of a suction space within the brush attachment and the inner part in the brush attachment is pivotally mounted about an axis in the manner of a rocker and the brush roller is also associated with an associated adjusting element a presettable pressure is held on the floor and that a front bottom bar is formed on the brush attachment and a rear bottom bar is arranged in the region of the axis on the inner part.
  • a good design is that the actuator is designed as a spring.
  • An adjusting screw or an active adjusting element with a drive can of course also be used.
  • the spring element is arranged as a tension spring on the side of the inner part facing away from the brush roller.
  • the spring element be arranged on the axis as a torsion spring.
  • the rear bottom bar is designed at least in the area facing the bottom in the form of a convex sealing surface.
  • FIG. 1 the brush attachment 1 with a rear roller 3 is shown in FIG. 1.
  • An inner part 4 is mounted in the brush attachment 1 in the manner of an insert.
  • the suction connection and the connection for this between the brush attachment 1 and the inner part 4 are not shown in detail.
  • Fig. 2 shows the use of front and rear rollers 2,3.
  • the inner part 4 carries a bearing in the front part as a limited suction chamber 5, a brush roller 6, which is driven by a toothed belt 7 by a motor 8 also arranged on the inner part 4, so that the brush roller 6 and motor 8 are firmly assigned to each other via the inner part 4.
  • the toothed belt 7 runs outside the actual suction chamber 5.
  • the brush attachment 1 as the upper part has a receptacle 9 which carries an axis 10 of the inner part, so that the inner part 4 is received in the manner of a rocker.
  • the rear end of the inner part 4 is connected by a tension spring 11 to the brush attachment serving as the upper part, and the brush roller 6 is pressed onto the floor area 12 to be processed.
  • a constant contact pressure is achieved depending on the nature of the soil.
  • the suction space formed is sealed by a front base strip 13 on the brush attachment 1, which is firmly assigned to the base area 12.
  • a rear base strip 14 is fixedly connected to the inner part 4 and is assigned to the processing surface as a concave surface element 15.

Abstract

The floor cleaner has a brush roller (6) with its motor (8) and toothed belt drive (7) which is installed in an adjustable inner part (4) of the housing (1) where a vacuum space (5) is formed. The entire inner part is pivotable about an axis (10) and its trailing end is held up by a tension spring (11). The vacuum space is sealed at its leading end by a forward moulding (13). A rearward moulding (14) directly beneath the pivot axis is convex so that the suction is maintained irrespective of the pivoting of the brush roller.

Description

Die Erfindung bezieht sich auf eine Vorrichtung für Bodenpflegegeräte, insbesondere Teppichreinigungsgeräte, in Form eines Bürststaubsaugers mit angetriebener Bürstwalze, wobei die Bürstwalze in einem dem Boden zugewandten Bürstvorsatz mit Laufrollen bzw. Gleitelementen angeordnet ist und zur Anpassung der Bürstwalze an die vorliegenden Arbeitsverhältnisse, wie Untergrundbeschaffenheit und Bürstenabnutzung, Elemente zur Verstellung der Bürstwalze zum Boden angeordnet sind.The invention relates to a device for floor care devices, in particular carpet cleaning devices, in the form of a brush vacuum cleaner with a driven brush roller, the brush roller being arranged in a brush attachment facing the floor with rollers or sliding elements and for adapting the brush roller to the existing working conditions, such as the nature of the surface and Brush wear, elements for adjusting the brush roller to the floor are arranged.

Geräte dieser Art sind bekannt, und es ist hierbei vorgesehen, für verschiedene Bodenbeläge die Einstellung der Höhe der Bürstenachse über den Untergrund vorzunehmen, um ein gutes Arbeitsergebnis zu erzielen. Die beschaffenheit des Bodens, wie verschiedene Teppicharten, Parkett, und die Abnutzung der Bürste machen eine individuelle Einstellung erforderlich.Devices of this type are known, and it is hereby intended to adjust the height of the brush axis above the substrate for different floor coverings in order to achieve a good work result. The nature of the floor, such as different types of carpets, parquet, and the wear of the brush make an individual adjustment necessary.

Beim Betrieb von Staubsaugern besteht das Problem, daß der Luftstrom von den Stirnseiten der Bürste im eigentlichen Saugraum zu einem Saugkanal geführt wird, wobei radial und tangential zugeführte Luft als Leckluft unerwünscht ist. Zu diesem Zweck sind Bodenleisten vor und hinter der Bürste parallel als Abdichtung angeordnet. Diese Voraussetzungen erschweren einfache Ausbildungen von Einstellungen der Höhe der Bürstenwalzen zur Anpassung an den Bodenbelag.The problem with the operation of vacuum cleaners is that the air flow is led from the end faces of the brush in the actual suction chamber to a suction channel, with radially and tangentially supplied air being undesirable as leakage air. For this purpose, baseboards in front of and behind the brush are arranged in parallel as a seal. These requirements complicate simple training of settings of the height of the brush rollers to adapt to the flooring.

Aufgabe der Erfindung ist es, bekannte Anordnungen zu verbessern und eine Relativbewegung zwischen Bürste und Bodenleisten zu schaffen, um eine Einstellung der Bürste ohne Veränderung der Dichtspalte zu ermöglichen.The object of the invention is to improve known arrangements and to create a relative movement between the brush and base strips in order to enable the brush to be adjusted without changing the sealing gap.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß dadurch, daß die Bürstwalze mit ihrem Antrieb in einem einstellbaren Innenteil unter Ausbildung eines Saugraumes innerhalb des Bürstvorsatzes angeordnet und das Innenteil im Bürstvorsatz über eine Achse schwenkbar in der Art einer Wippe gelagert ist sowie über ein zugeordnetes Stellelement die Bürstwalze mit einem voreinstellbaren Druck auf dem Boden anpreßbar gehalten ist und daß eine vordere Bodenleiste am Bürstvorsatz gebildet und eine hintere Bodenleiste im Bereich der Achse am Innenteil angeordnet ist.This object is achieved according to the invention in that the brush roller with its drive is arranged in an adjustable inner part with the formation of a suction space within the brush attachment and the inner part in the brush attachment is pivotally mounted about an axis in the manner of a rocker and the brush roller is also associated with an associated adjusting element a presettable pressure is held on the floor and that a front bottom bar is formed on the brush attachment and a rear bottom bar is arranged in the region of the axis on the inner part.

Hierdurch wird ein abgeschlossener Saugraum geschaffen und bei Verstellung der Bürstwalze in Anpassung der Bodenbeschaffenheit und Bürstenabnutzung verschwenkt das gesamte Innenteil mit der hinteren Bodenleiste. Da die Schwenkwinkel relativ klein sind und die Bodenleiste sich im Bereich der Achse befindet, erfolgt keine Beeinträchtigung der Dichtspalte bei der Anpassungsbewegung. Es ist insbesondere daran gedacht, die Bodenleiste als separates Teil auszubilden. Bei einigen Anwendungen kann es aber ebenfalls zweckmäßig sein, eine einteilige Ausführung von Bodenleiste und zugeordnetem Halterungselement, beispielsweise durch Anspritzen, vorzusehen.This creates a closed suction chamber and when the brush roller is adjusted to adjust the floor quality and brush wear, the entire inner part pivots with the rear base strip. Since the swivel angle is relatively small and the bottom bar is located in the area of the axis, there is no impairment of the sealing gap during the adjustment movement. In particular, it is contemplated to design the bottom bar as a separate part. In some applications, however, it can also be expedient to provide a one-piece design of the bottom bar and associated holding element, for example by injection molding.

Eine gute Ausbildung besteht darin, daß das Stellelement als Feder ausgebildet ist. Selbstverständlich kann auch eine Stellschraube oder ein aktives Stellelement mit einem Antrieb verwendet werden.A good design is that the actuator is designed as a spring. An adjusting screw or an active adjusting element with a drive can of course also be used.

Eine einfache Ausbildung wird dadurch geschaffen, daß das Federelement als Zugfeder an der der Bürstwalze abgewandten Seite des Innenteiles angeordnet ist. Alternativ wird vorgeschlagen, daß das Federelement auf der Achse als Drehfeder angeordnet ist.A simple design is created in that the spring element is arranged as a tension spring on the side of the inner part facing away from the brush roller. Alternatively, it is proposed that the spring element be arranged on the axis as a torsion spring.

Um eine Schwenkbewegung außerhalb der Arbeitsstellung der Bürstenwalze zu begrenzen, wird vorgeschlagen, daß die Schwenkbewegung des Innenteiles zur Verstellung der Bürstwalze über zugeordnete Anschläge begrenzbar ist.In order to limit a pivoting movement outside the working position of the brush roller, it is proposed that the pivoting movement of the inner part for adjusting the brushing roller can be limited by means of assigned stops.

Zur guten Einstellbarkeit der Bodenleiste am Innenteil unabhängig von der Schwenkstellung wird vorgeschlagen, daß die hintere Bodenleiste wenigsten in dem Boden zugewandten Bereich in Form einer konvexen Dichtfläche ausgebildet ist.For good adjustability of the bottom bar on the inner part regardless of the pivoting position, it is proposed that the rear bottom bar is designed at least in the area facing the bottom in the form of a convex sealing surface.

In der Zeichnung sind Ausführungsbeispiele der Erfindung schematisch dargestellt. Es zeigen:

Fig. 1
einen Querschnitt durch einen Bürstvorsatz in prinzipieller Darstellung mit aufliegender vorderer Bodenleiste und
Fig. 2
eine Variante mit Rollenführung bei der vorderen Bodenleiste.
Exemplary embodiments of the invention are shown schematically in the drawing. Show it:
Fig. 1
a cross section through a brush attachment in a basic representation with the front floor strip and
Fig. 2
a variant with roller guide for the front baseboard.

In der dargestellten Ausbildung ist in Fig. 1 der Bürstvorsatz 1 mit einer hinteren Laufrolle 3 gezeigt. In dem Bürstvorsatz 1 ist einsatzartig ein Innenteil 4 gelagert. Der Sauganschluß und die Verbindung hierfür zwischen Bürstvorsatz 1 und Innenteil 4 sind nicht näher dargestellt. Fig. 2 zeigt die Verwendung von vorderen und hinteren Laufrollen 2,3.In the illustrated embodiment, the brush attachment 1 with a rear roller 3 is shown in FIG. 1. An inner part 4 is mounted in the brush attachment 1 in the manner of an insert. The suction connection and the connection for this between the brush attachment 1 and the inner part 4 are not shown in detail. Fig. 2 shows the use of front and rear rollers 2,3.

Das Innenteil 4 trägt über Lager im vorderen Teil als begrenzter Saugraum 5 eine Bürstwalze 6, die über einen Zahnriemen 7 durch einen ebenfalls am Innenteil 4 angeordneten Motor 8 angetrieben wird, so daß Bürstwalze 6 und Motor 8 über das Innenteil 4 fest einander zugeordnet sind. Der Zahnriemen 7 läuft dabei außerhalb des eigentlichen Saugraumes 5.The inner part 4 carries a bearing in the front part as a limited suction chamber 5, a brush roller 6, which is driven by a toothed belt 7 by a motor 8 also arranged on the inner part 4, so that the brush roller 6 and motor 8 are firmly assigned to each other via the inner part 4. The toothed belt 7 runs outside the actual suction chamber 5.

Der Bürstvorsatz 1 als Oberteil besitzt eine Aufnahme 9, die eine Achse 10 des Innenteiles trägt, so daß das Innenteil 4 in der Art einer Wippe aufgenommen wird. Das hintere Ende des Innenteiles 4 ist mit einer Zugfeder 11 mit dem als Oberteil dienenden Bürstvorsatz verbunden, und die Bürstwalze 6 wird auf den zu bearbeitenden Bodenbereich 12 gedrückt. Hierdurch wird ein konstanter Auflagendruck je nach Bodenbeschaffenheit erzielt.The brush attachment 1 as the upper part has a receptacle 9 which carries an axis 10 of the inner part, so that the inner part 4 is received in the manner of a rocker. The rear end of the inner part 4 is connected by a tension spring 11 to the brush attachment serving as the upper part, and the brush roller 6 is pressed onto the floor area 12 to be processed. As a result, a constant contact pressure is achieved depending on the nature of the soil.

Der gebildete Saugraum wird durch eine vordere Bodenleiste 13 am Bürstvorsatz 1 abgedichtet, die dem Bodenbereich 12 fest zugeordnet ist. Eine hintere Bodenleiste 14 ist fest mit dem Innenteil 4 verbunden und als konkaves Flächenelement 15 der Bearbeitungsfläche zugeordnet. Durch die Zuordnung im Bereich der Achse 10 kommt es bei der unterschiedlichen Einstellung der Bürstwalze 6 nur zu einer seitlichen Verschiebung ohne eine nennenswerte Spaltveränderung zur Bearbeitungsfläche 12.The suction space formed is sealed by a front base strip 13 on the brush attachment 1, which is firmly assigned to the base area 12. A rear base strip 14 is fixedly connected to the inner part 4 and is assigned to the processing surface as a concave surface element 15. As a result of the assignment in the area of the axis 10, when the brush roller 6 is set differently, there is only a lateral displacement without a significant change in the gap to the machining surface 12.

Damit ist gewährleistet, daß trotz der Schwenkbewegung der Bürstwalze 6 ein abgeschlossener Saugraum gebildet wird.This ensures that a closed suction chamber is formed despite the pivoting movement of the brush roller 6.

Claims (6)

Vorrichtung für Bodenpflegegeräte, insbesondere Teppichreinigungsgeräte, in Form eines Bürststaubsaugers mit angetriebener Bürstwalze, wobei die Bürstwalze in einem dem Boden zugewandten Bürstvorsatz mit Laufrollen bzw. Gleitelementen angeordnet ist und zur Anpassung der Bürstwalze an die vorliegenden Arbeitsverhältnisse, wie Untergrundbeschaffenheit und Bürstenabnutzung, Elemente zur Verstellung der Bürstwalze zum Boden angeordnet sind, dadurch gekennzeichnet, daß die Bürstwalze (6) mit ihrem Antrieb (7,8) in einem einstellbaren Innenteil (4) unter Ausbildung eines Saugraumes (5) innerhalb des Bürstvorsatzes (1) angeordnet und das Innenteil (4) im Bürstvorsatz über eine Achse (10) schwenkbar in der Art einer Wippe gelagert ist sowie über ein zugeordnetes Stellelement (11) die Bürstwalze (6) mit einem voreinstellbaren Druck auf dem Boden (12) anpreßbar gehalten ist und daß eine vordere Bodenleiste (13) am Bürstvorsatz (1) gebildet und eine hintere Bodenleiste (14) im Bereich der Achse (10) am Innenteil (4) angeordnet ist.Device for floor care devices, in particular carpet cleaning devices, in the form of a brush vacuum cleaner with a driven brush roller, the brush roller being arranged in a brush attachment facing the floor with rollers or sliding elements and for adapting the brush roller to the existing working conditions, such as the condition of the surface and brush wear, elements for adjusting the Brush roller are arranged to the floor, characterized in that the brush roller (6) with its drive (7, 8) is arranged in an adjustable inner part (4) with the formation of a suction space (5) within the brush attachment (1) and the inner part (4) is pivotally mounted in the brush attachment via an axis (10) in the manner of a rocker and the brush roller (6) is held on the floor (12) with a presettable pressure by means of an associated adjusting element (11) and that a front bottom bar (13) formed on the brush attachment (1) and a rear bottom bar (14) is arranged on the inner part (4) in the region of the axis (10). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Stellelement (11) als Feder ausgebildet ist.Device according to claim 1, characterized in that the adjusting element (11) is designed as a spring. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Federelement (11) als Zugfeder an der der Bürstwalze (6) abgewandten Seite des Innenteiles (4) angeordnet ist.Apparatus according to claim 2, characterized in that the spring element (11) as a tension spring on the the brush roller (6) facing away from the inner part (4) is arranged. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Federelement (11) auf der Achse (10) als Drehfeder angeordnet ist.Device according to claim 2, characterized in that the spring element (11) is arranged on the axis (10) as a torsion spring. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Schwenkbewegung des Innenteiles (4) zur Verstellung der Bürstwalze (6) über zugeordnete Anschläge begrenzbar ist.Device according to one of claims 1 to 4, characterized in that the pivoting movement of the inner part (4) for adjusting the brush roller (6) can be limited by means of assigned stops. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die hintere Bodenleiste (14) wenigsten in dem Boden (12) zugewandten Bereich in Form einer konvexen Dichtfläche (15) ausgebildet ist.Device according to one of claims 1 to 5, characterized in that the rear bottom bar (14) is designed in the form of a convex sealing surface (15) at least in the area facing the bottom (12).
EP95117890A 1995-02-16 1995-11-14 Device for floor treating machines Expired - Lifetime EP0727171B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19505106 1995-02-16
DE19505106A DE19505106C2 (en) 1995-02-16 1995-02-16 Device for floor care equipment

Publications (3)

Publication Number Publication Date
EP0727171A2 true EP0727171A2 (en) 1996-08-21
EP0727171A3 EP0727171A3 (en) 1998-07-22
EP0727171B1 EP0727171B1 (en) 2001-01-24

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ID=7754058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95117890A Expired - Lifetime EP0727171B1 (en) 1995-02-16 1995-11-14 Device for floor treating machines

Country Status (4)

Country Link
US (1) US5819370A (en)
EP (1) EP0727171B1 (en)
CA (1) CA2169591C (en)
DE (2) DE19505106C2 (en)

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DE102007036156B4 (en) 2007-08-02 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Suction brush device for a dust collecting device, in particular for a dust collecting robot, and a dust collecting device containing such a suction brush device, in particular dust collecting robot
DE102007036227B4 (en) 2007-08-02 2014-01-02 BSH Bosch und Siemens Hausgeräte GmbH Suction brush device for a dust collecting device, in particular for a dust collecting robot, and a dust collecting device containing such a suction brush device, in particular dust collecting robot
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Publication number Priority date Publication date Assignee Title
EP0803224A2 (en) * 1996-04-25 1997-10-29 Aktiebolaget Electrolux Nozzle arrangement for a self-guiding vacuum cleaner
EP0803224A3 (en) * 1996-04-25 1998-09-09 Aktiebolaget Electrolux Nozzle arrangement for a self-guiding vacuum cleaner
WO1999027834A1 (en) * 1997-12-04 1999-06-10 Notetry Limited A brush bar
WO2000021426A1 (en) * 1998-10-08 2000-04-20 Dyson Limited A cleaner head assembly for a vacuum cleaner
WO2000021427A1 (en) * 1998-10-08 2000-04-20 Dyson Limited A cleaner head assembly for a vacuum cleaner
GB2357691A (en) * 1998-10-08 2001-07-04 Notetry Ltd A cleaner head assembly for a vacuum cleaner
GB2357691B (en) * 1998-10-08 2002-03-06 Dyson Ltd A cleaner head assembly for a vacuum cleaner
CN100370939C (en) * 1998-10-08 2008-02-27 戴森技术有限公司 Cleaner head assembly for vacuum cleaner
EP1075816B1 (en) * 1999-08-12 2013-10-02 Wessel-Werk GmbH Brush attachment for cleaning floor surfaces
US6591447B2 (en) 2001-03-19 2003-07-15 The Hoover Company Spring loaded vacuum cleaner nozzle
US7290308B2 (en) 2003-01-03 2007-11-06 Panasonic Corporation Of North America Vacuum cleaner equipped with pivotally mounted agitator section
EP2116165A3 (en) * 2008-05-09 2011-06-08 Wessel-Werk GmbH Suction nozzle for a vacuum cleaner

Also Published As

Publication number Publication date
US5819370A (en) 1998-10-13
CA2169591A1 (en) 1996-08-17
DE19505106C2 (en) 1997-04-17
EP0727171B1 (en) 2001-01-24
EP0727171A3 (en) 1998-07-22
CA2169591C (en) 2004-01-13
DE59508991D1 (en) 2001-03-01
DE19505106A1 (en) 1996-08-22

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