EP0727171B1 - Device for floor treating machines - Google Patents

Device for floor treating machines Download PDF

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Publication number
EP0727171B1
EP0727171B1 EP95117890A EP95117890A EP0727171B1 EP 0727171 B1 EP0727171 B1 EP 0727171B1 EP 95117890 A EP95117890 A EP 95117890A EP 95117890 A EP95117890 A EP 95117890A EP 0727171 B1 EP0727171 B1 EP 0727171B1
Authority
EP
European Patent Office
Prior art keywords
brush
floor
inner part
brush cylinder
disposed
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.)
Expired - Lifetime
Application number
EP95117890A
Other languages
German (de)
French (fr)
Other versions
EP0727171A2 (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
Original Assignee
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 driven Brush roller, the brush roller in a the bottom facing brush attachment with rollers or sliding elements is arranged and to adjust the brush roller to the existing employment relationships, such as Surface texture and brush wear, elements arranged to adjust the brush roller to the floor are.
  • Devices of this type are known as dry vacuum cleaners, and it is intended for different Flooring the adjustment of the height of the brush axis over the ground to make a good one To achieve work result.
  • the nature of the Floors, such as different types of carpets, parquet, and the Wear of the brush make an individual Adjustment required.
  • the object of the invention is to known arrangements improve and a relative movement between brush and To create skirting boards to adjust the To enable brush without changing the sealing gap.
  • the actuator is designed as a spring.
  • the actuator can also be an adjusting screw or an active adjusting element can be used with a drive.
  • a simple training is created in that the spring element as a tension spring on the brush roller opposite side of the inner part is arranged.
  • the spring element on the axis is arranged as a torsion spring.
  • the rear skirting board faces at least in the floor Area in the form of a convex sealing surface is trained.
  • the Brush attachment 1 shown with a rear roller 3.
  • An inner part 4 is insert-like in the brush attachment 1 stored.
  • the suction connection and the connection for it between brush attachment 1 and inner part 4 are not shown in more detail.
  • Fig. 2 shows the use of front and rear casters 2.3.
  • the inner part 4 carries as a bearing in the front part limited suction space 5 a brush roller 6, which has a Toothed belt 7 by a likewise arranged on the inner part 4 Motor 8 is driven so that brush roller 6th and motor 8 firmly assigned to each other via the inner part 4 are.
  • the toothed belt 7 runs outside of actual suction chamber 5.
  • the brush attachment 1 as an upper part has a receptacle 9, which carries an axis 10 of the inner part, so that Inner part 4 is added in the manner of a seesaw.
  • the rear end of the inner part 4 is with a tension spring 11 with the brush attachment serving as the upper part connected, and the brush roller 6 is on the to be processed Bottom area 12 pressed. This will a constant print run depending on the nature of the soil achieved.
  • the suction chamber is formed by a front bottom bar 13 sealed on the brush attachment 1, the floor area 12 is permanently assigned.
  • a rear skirting board 14 is firmly connected to the inner part 4 and as a convex surface element 15 of the machining surface assigned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Brushes (AREA)

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 driven Brush roller, the brush roller in a the bottom facing brush attachment with rollers or sliding elements is arranged and to adjust the brush roller to the existing employment relationships, such as Surface texture and brush wear, elements arranged to adjust the brush roller to the floor are.

Geräte dieser Art sind als Trockenstaubsauger 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 as dry vacuum cleaners, and it is intended for different Flooring the adjustment of the height of the brush axis over the ground to make a good one To achieve work result. The nature of the Floors, such as different types of carpets, parquet, and the Wear of the brush make an individual Adjustment required.

Beim Betrieb von Staubsaugern als Trockenstaubsauger 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. When operating vacuum cleaners as dry vacuum cleaners there is a problem that the air flow from the End faces of the brush in the actual suction chamber a suction channel is guided, radial and Tangentially supplied air undesirable as leakage air is. For this purpose, baseboards are in front and behind the brush arranged in parallel as a seal. This Prerequisites make simple training of Adjustment of the height of the brush rollers for adjustment to the flooring.

Eine andere Gattung von Geräten betrifft die Anordnung nach der US-A-3871051 als Naßreinigungsgerät. Hierbei ist vorgesehen, ein Bürste in der Höhe durch eine Schwenkbewegung zu verstellen. Es wird aber kein abgeschlossener Saugraum im Bereich der Bürste gebildet, der durch eine hintere Bodenleiste abgeschlossen ist. Es ist hierbei vorgesehen, daß der hintere Bereich durch eine Spritzschutzleiste begrenzt ist, die feststehend unabhängig von der Schwenkbewegung angeordnet ist.Another type of device concerns the arrangement according to US-A-3871051 as a wet cleaning device. Here is provided a brush in height by one Adjust swivel movement. But it won't sealed suction area in the area of the brush formed by a rear skirting board is completed. It is envisaged that the rear area limited by a splash guard which is fixed regardless of the pivoting movement is arranged.

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 known arrangements improve and a relative movement between brush and To create skirting boards to adjust the To enable brush without changing the sealing gap.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß durch die Merkmalskombination des Anspruches 1.This object is achieved according to the invention by the combination of features of claim 1.

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 adjusting the brush roller in adaptation of Floor quality and brush wear swiveled the entire inner part with the rear skirting board. There the swivel angles are relatively small and the bottom bar is located in the area of the axis no impairment of the sealing gap during the adjustment movement. It is especially thought form the baseboard as a separate part. At however, it may also be useful in some applications be a one-piece version of skirting board and assigned bracket element, for example by Injection to provide.

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 education is that the actuator is designed as a spring. Of course can also be an adjusting screw or an active adjusting element can be used with a drive.

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 training is created in that the spring element as a tension spring on the brush roller opposite side of the inner part is arranged. Alternatively it is proposed that the spring element on the axis is arranged 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.A swivel movement outside of the working position to limit the brush roller, it is proposed that the pivoting movement of the inner part to adjust the Brush roller can be limited via 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 swivel position, it is proposed that the rear skirting board faces at least in the floor Area in the form of a convex sealing surface is trained.

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

Fig. 1
einen Querschnitt durch einen Bürstvorsatz in prinzipieller Darstellung mit aufliegender vorderen 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 skirt and front
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 shown with a rear roller 3. An inner part 4 is insert-like in the brush attachment 1 stored. The suction connection and the connection for it between brush attachment 1 and inner part 4 are not shown in more detail. Fig. 2 shows the use of front and rear casters 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 as a bearing in the front part limited suction space 5 a brush roller 6, which has a Toothed belt 7 by a likewise arranged on the inner part 4 Motor 8 is driven so that brush roller 6th and motor 8 firmly assigned to each other via the inner part 4 are. The toothed belt 7 runs outside of 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 an upper part has a receptacle 9, which carries an axis 10 of the inner part, so that Inner part 4 is added in the manner of a seesaw. The rear end of the inner part 4 is with a tension spring 11 with the brush attachment serving as the upper part connected, and the brush roller 6 is on the to be processed Bottom area 12 pressed. This will a constant print run depending on the nature of the soil achieved.

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 konvexes 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 chamber is formed by a front bottom bar 13 sealed on the brush attachment 1, the floor area 12 is permanently assigned. A rear skirting board 14 is firmly connected to the inner part 4 and as a convex surface element 15 of the machining surface assigned. Through the assignment in the area of axis 10 it comes with the different attitudes of Brush roller 6 only for a lateral displacement without a noticeable change in gap to the machining surface 12th

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

Claims (6)

  1. Apparatus for floor care appliances, in particular carpet cleaning appliances, in the form of a brushing vacuum cleaner with driven brush cylinder (6), wherein the brush cylinder (6) is disposed in a brush head directed towards the floor (12) and having castors and/or sliding elements (3, 13) and for adaptation of the brush cylinder (6) to the existing work conditions, such as floor structure and brush wear, elements are provided for displacement of the brush cylinder (6) relative to the floor (12), wherein the brush cylinder (6) with its drive (7, 8) is disposed in an adjustable inner part (4) so as to form a suction chamber (5) inside the brush head (1) and the inner part (4) is supported by means of an axle (10) pivotally in the manner of a rocker in the brush head and the brush cylinder (6) by means of an associated setting element (11) is held so as to be pressable with a preadjustable pressure against the floor (12) and that a front bottom strip (13) is formed on the brush head (1) and a back bottom strip (14) is disposed in the region of the axle (10) on the inner part (4).
  2. Apparatus according to claim 1, characterized in that the setting element (11) takes the form of a spring.
  3. Apparatus according to claim 2, characterized in that the spring element (11) is disposed as a tension spring at the end of the inner part (4) remote from the brush cylinder (6).
  4. Apparatus according to claim 2, characterized in that the spring element (11) is disposed as a torsion spring on the axle (10).
  5. Apparatus according to one of claims 1 to 4, characterized in that the swivelling motion of the inner part (4) for displacement of the brush cylinder (6) is delimitable by means of associated stops.
  6. Apparatus according to one of claims 1 to 5, characterized in that the back bottom strip (14) at least in the region directed towards the floor (12) takes the form of a convex sealing surface (15).
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
DE19505106A DE19505106C2 (en) 1995-02-16 1995-02-16 Device for floor care equipment
DE19505106 1995-02-16

Publications (3)

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

Family

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)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
US7290308B2 (en) 2003-01-03 2007-11-06 Panasonic Corporation Of North America Vacuum cleaner equipped with pivotally mounted agitator section
DE102007036156A1 (en) 2007-08-02 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Suction brush arrangement for a dust collecting robot comprises a removal element extending over the length of an effective bristle region of a brush roller in the region of the brush roller facing the rear side of a dust collecting device
DE102007036227A1 (en) 2007-08-02 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Suction brush arrangement for a dust collecting robot comprises a suction brush body having an upper shell supporting a brush roller and a ventilating wheel and a lower shell detachedly connected to the upper shell
DE102007036155A1 (en) 2007-08-02 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Suction brush arrangement for a dust collecting robot comprises a suction brush body having a guiding surface on the lower side of a dust collecting robot in a region facing the rear side of the dust collecting device

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US6484349B1 (en) 1999-12-30 2002-11-26 Oreck Holdings, Llc Handle assemblies for floor care devices and methods of using same
US6772474B2 (en) * 2001-03-12 2004-08-10 Matsushita Electric Corporation Of America Upright vacuum cleaner with spring loaded nozzle
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US7156127B2 (en) * 2001-12-17 2007-01-02 Flexible Technologies, Inc. Current carrying stretch hose
DE10305276B4 (en) * 2003-02-07 2013-06-27 Stein & Co Gmbh Device for floor care appliances
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US7694383B2 (en) * 2006-01-06 2010-04-13 The Scott Fetzer Company Upright vacuum cleaner with removable power head
GB2440716A (en) * 2006-08-08 2008-02-13 Dyson Technology Ltd A cleaner head assembly for a vacuum cleaner
US20080127447A1 (en) * 2006-11-30 2008-06-05 Overaag Chad D Floor care apparatus equipped with electroluminescent light source
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DE102008022995B4 (en) * 2008-05-09 2012-05-31 Wessel-Werk Gmbh Suction nozzle for vacuum cleaner
DE102010000577B4 (en) 2010-02-04 2024-01-04 Vorwerk & Co. Interholding Gmbh Brush device
DE102011077293B4 (en) * 2011-06-09 2021-05-06 BSH Hausgeräte GmbH Spring-loaded suction nozzle
US9345371B2 (en) 2012-12-12 2016-05-24 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly
US20140157543A1 (en) 2012-12-12 2014-06-12 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly
CN110367872A (en) * 2015-08-28 2019-10-25 科沃斯机器人股份有限公司 Scrubbing brush and its dust catcher
GB2542420B (en) * 2015-09-21 2018-01-10 Dyson Technology Ltd Cleaner head
CN213850490U (en) 2019-07-29 2021-08-03 尚科宁家运营有限公司 Robot cleaner
DE102019120933B4 (en) * 2019-08-02 2024-01-18 Vorwerk & Co. Interholding Gmbh Suction nozzle for a vacuum cleaner and vacuum cleaner with a suction nozzle
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7290308B2 (en) 2003-01-03 2007-11-06 Panasonic Corporation Of North America Vacuum cleaner equipped with pivotally mounted agitator section
DE102007036156A1 (en) 2007-08-02 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Suction brush arrangement for a dust collecting robot comprises a removal element extending over the length of an effective bristle region of a brush roller in the region of the brush roller facing the rear side of a dust collecting device
DE102007036227A1 (en) 2007-08-02 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Suction brush arrangement for a dust collecting robot comprises a suction brush body having an upper shell supporting a brush roller and a ventilating wheel and a lower shell detachedly connected to the upper shell
DE102007036155A1 (en) 2007-08-02 2009-02-05 BSH Bosch und Siemens Hausgeräte GmbH Suction brush arrangement for a dust collecting robot comprises a suction brush body having a guiding surface on the lower side of a dust collecting robot in a region facing the rear side of the dust collecting device
DE102007036155B4 (en) * 2007-08-02 2012-04-26 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
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

Also Published As

Publication number Publication date
DE19505106A1 (en) 1996-08-22
EP0727171A2 (en) 1996-08-21
DE59508991D1 (en) 2001-03-01
EP0727171A3 (en) 1998-07-22
CA2169591C (en) 2004-01-13
CA2169591A1 (en) 1996-08-17
DE19505106C2 (en) 1997-04-17
US5819370A (en) 1998-10-13

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