EP0315067B1 - Suction brush nozzle for a suction cleaning apparatus (suction cleaner) - Google Patents

Suction brush nozzle for a suction cleaning apparatus (suction cleaner) Download PDF

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Publication number
EP0315067B1
EP0315067B1 EP88117978A EP88117978A EP0315067B1 EP 0315067 B1 EP0315067 B1 EP 0315067B1 EP 88117978 A EP88117978 A EP 88117978A EP 88117978 A EP88117978 A EP 88117978A EP 0315067 B1 EP0315067 B1 EP 0315067B1
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EP
European Patent Office
Prior art keywords
suction
brush
drive unit
driven
nozzle
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EP88117978A
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German (de)
French (fr)
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EP0315067A3 (en
EP0315067A2 (en
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Siegfried Maier
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    • 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
    • A47L9/0405—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
    • 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
    • A47L9/0494—Height adjustment of dust-loosening tools

Definitions

  • the invention relates to a brush suction nozzle for a suction cleaning device according to the preamble of claim 1.
  • suction tools For cleaning preferably textile floor coverings, suction tools, so-called suction nozzles, are used in connection with a suction cleaning device, which are provided with a rotating, preferably height-adjustable, roller-shaped brush to support the cleaning action.
  • This rotating roller-shaped brush is mounted in the housing of the suction nozzle in such a way that the bristle of the brush roller extends through the inflow opening for the suction air flow, which is arranged closely above the floor surface to be cleaned, and thus penetrates into the upper area of the textile floor covering and brushes through it.
  • the rotating brush roller is usually used to adapt the cleaning effect to the degree of soiling and the type of construction of the surface to be cleaned adjustable in height.
  • the power supply line for the electric drive unit driving the brush roller is connected to an electrical plug-in connection, which is attached specifically to the connection of additional devices to the vacuum cleaning device.
  • the use of air-driven drive units for driving the rotating brush roller has the advantage of cheap manufacture, since the air turbine used for the drive can be manufactured very inexpensively with a possible intermediate gear from a plastic material using the injection molding process.
  • the electrical power supply line is often held by means of clips on the suction line which connects the suction nozzle to the suction cleaning device, which is not very attractive from an optical point of view.
  • Suction lines with integrated mains connection lines are also used. However, these are very complex and expensive.
  • the brush rollers driven by an air-driven drive unit have the disadvantage that the drive power emitted by the air-driven unit is only sufficient for relatively narrow suction nozzles.
  • the torque available is not sufficient to guide the bristle of the brush roller sufficiently deep through the carpet pile.
  • the reduction in the suction air flow due to the clogging of the filter with increasing dust absorption and the throttling of the inflow opening when it lies too tightly on the carpet surface to be cleaned also have a negative effect on the drive power.
  • the use of an electric motor-driven drive unit for driving the brush roller eliminates these disadvantages, but is considerably more complex and therefore more expensive, but is essential for intensive cleaning, particularly with wide working tracks.
  • the object on which the invention is based is to create a suction nozzle with a rotating brush roller which can be easily operated both with an air-driven drive unit and with an electric motor-driven drive unit and can be converted from one drive unit to the other drive unit in a few simple steps.
  • the interior of the suction nozzle is provided with a sufficiently large free space, which is dimensioned so that both the air-driven drive unit with its air duct and, in exchange, the electromotive drive unit with the additional electrical parts can be installed.
  • the free space accessible from the outside of the nozzle and accommodating one of these drive units is closed by a cover which is repeatedly attached to the nozzle housing in a manner that is easily detachable, for example with screws.
  • On the side of this cover facing the interior of the suction nozzle is either the air-driven drive unit or the electric motor-driven drive unit is installed.
  • the output shaft of the two alternative drive units which drives the brush roller comes to rest in the case of retrofitting such that the belt drive leading to the brush roller is used for the output shafts of both drive units.
  • This optional use of an air-driven or an electric motor-driven drive unit for a suction nozzle equipped with a rotating brush roller for a vacuum cleaning device has the advantage that the manufacturer of these brush suction nozzles can react quickly without delay in delivery, in accordance with the customer's request, without delay in delivery.
  • the consumer who experience has shown that he tends to be more economical at a later date, has the option of retrofitting the brush suction nozzle already purchased with just a few simple steps.
  • the back of the brush suction nozzle 1 is provided with an articulated connection piece 2 to which a suction line (not shown) which leads to the suction cleaning device (also not shown) can be connected for the ventilation connection.
  • the brush suction nozzle 1 is moved during the cleaning process with the suction opening arranged on its underside, which comes to lie closely above the floor surface to be cleaned, over the surface to be cleaned, the nozzle being mounted on the rear driving rollers 3 and the front support rollers in a slightly movable manner.
  • a usually height-adjustable brush roller 6 is rotatably mounted in the bearings 7 within the nozzle housing 5, the bristle 8 of which protrudes through the suction opening on the underside of the nozzle and penetrates into the pile of the textile floor covering to be cleaned and brushes it slides through.
  • the brush roller 6 is driven by, for example, an air-driven drive unit 11 via the belt drive 12 with the interposition of a reduction gear 13.
  • a reduction gear 13 is installed between the air turbine 15 and the driven pulley 17.
  • the air turbine 15 is mounted with the reduction gear 13 on a cover plate 20 which lies precisely in the upper wall 21 of the housing of the brush suction nozzle 1 and is easily detachably held by the screws 22.
  • the air turbine 15 with the intermediate gear 13 protrudes into the free space 23 of the nozzle housing and is arranged in such a way that the driven pulley fixed on the shaft 24 of the reduction gear 13 17 is operatively connected to the belt drive 12.
  • the interior of the turbine housing 16 is connected in terms of ventilation by flow paths to the suction opening of the suction nozzle 1 and to the connecting piece 2.
  • a brush suction nozzle with an electromotive driven brush roller 6 is usually preferred for this purpose.
  • an electric motor-driven drive unit 26 is provided and designed so that it is also mounted on a cover plate 20 to enable replacement with the air-driven drive unit 11.
  • the driven pulley 17 mounted on the shaft 27 of the electric motor 28 is aligned precisely with the belt drive 12, so that the electromotive drive unit 26 can be exchanged with the air-driven drive unit 11 in a few simple steps, only by unscrewing the screws 22, by loosening the screws 22.
  • the electric motor-driven drive unit 26 is separably connected to the suction cleaning device via a plug-in coupling, the power cord 29 being attached to the suction line in a freely hanging manner by retaining clips, and also being designed as a power cord integrated into the suction line, which, however, is very expensive and is expensive in relation to the free-hanging power cord, which, however, often interferes with work and is not particularly appealing visually.
  • the design of the electric motor-driven unit is made in connection with its storage on the cover plate 20 so that at the same time with its replacement / use, corresponding air passage openings, for example in the inner wall openings of the nozzle housing, are covered for the operation of the air-driven unit or are carried out directly to the suction area .

Description

Die Erfindung betrifft eine Bürstsaugdüse für ein Saugreinigungsgerät nach dem Oberbegriff des Anspruchs 1.The invention relates to a brush suction nozzle for a suction cleaning device according to the preamble of claim 1.

Zur Reinigung vorzugsweise textiler Bodenbeläge werden in Verbindung mit einem Saugreinigungsgerät Saugwerkzeuge, sogenannte Saugdüsen eingesetzt, welche zur Unterstützung der Reinigungswirkung mit einer rotierenden, vorzugsweise höhenverstellbaren, walzenförmigen Bürste versehen sind. Diese rotierende walzenförmige Bürste ist im Gehäuse der Saugdüse so gelagert, daß die Beborstung der Bürstenwalze die dicht über der zu reinigenden Bodenfläche angeordnete Einströmöffnung für den Saugluftstrom durchragt und damit in den oberen Bereich des textilen Bodenbelags eindringt und diesen bürstend durchgreift. Zur Anpassung der Reinigungswirkung an den Verschmutzungsgrad und an die Konstruktionsart des zu reinigenden Belags ist die rotierende Bürstenwalze meist in ihrer Höhenlage verstellbar. Zum Antrieb der rotierenden Bürstenwalze ist es bekannt, sowohl durch den, die Saugdüse durchströmenden Saugluftstrom betriebene Antriebsaggregate als auch elektromotorisch betriebene Antriebsaggregate zu verwenden. Bei den luftbetriebenen Antriebsaggregaten wird der gesamte, die Saugdüse durchströmende Saugluftstrom oder auch nur ein Teil dieses Saugluftstromes in die Beschaufelung einer Luftturbine eingeleitet. Unter Zwischenschaltung eines Getriebes wird die hohe Drehzahl der Luftturbine auf die gewünschte Arbeitsdrehzahl der Bürstenwalze reduziert und gleichzeitig das für eine Bürstwirkung erforderliche Drehmoment erhöht. Die Übertragung der Drehbewegung auf die Bürstenwalze erfolgt im allgemeinen über einen Riementrieb.
Bei den elektromotorisch betriebenen Antriebsaggregaten wird allgemein ein elektrischer Universalmotor eingesetzt. Dieser Elektromotor wird bekannterweise über die das Saugreinigungsgerät speisende Netzanschlussleitung mit elektrischer Energie versorgt. An einem elektrischen Steckanschluss, der speziell für den Anschluss von Zusatzgeräten am Saugreinigungsgerät angebracht ist, wird die Netzzuleitung für das die Bürstenwalze antreibende elektrische Antriebsaggregat angeschlossen. Die Verwendung luftgetriebener Antriebsaggregate zum Antrieb der rotierenden Bürstenwalze hat den Vorteil der billigen Herstellung, da die dem Antrieb dienende Luftturbine mit einem eventuellen Zwischengetriebe sehr kostengünstig aus einem Plastik-Material im Spritzgiess-Verfahren hergestellt werden kann. Ausserdem entfallen die Kosten für die elektrische Netzanschlussleitung mit den Schalt-, Steuer- und Anzeigeelementen. Die Halterung der elektrischen Netzanschlussleitung erfolgt häufig mittels Klammern an der Saugleitung welche die Saugdüse mit dem Saugreinigungsgerät verbindet, was optisch nicht sehr ansprechend ist. Es werden auch Saugleitungen mit integrierten Netzanschlussleitungen verwendet. Diese sind jedoch sehr aufwendig und teuer.For cleaning preferably textile floor coverings, suction tools, so-called suction nozzles, are used in connection with a suction cleaning device, which are provided with a rotating, preferably height-adjustable, roller-shaped brush to support the cleaning action. This rotating roller-shaped brush is mounted in the housing of the suction nozzle in such a way that the bristle of the brush roller extends through the inflow opening for the suction air flow, which is arranged closely above the floor surface to be cleaned, and thus penetrates into the upper area of the textile floor covering and brushes through it. The rotating brush roller is usually used to adapt the cleaning effect to the degree of soiling and the type of construction of the surface to be cleaned adjustable in height. To drive the rotating brush roller, it is known to use drive units operated by the suction air flow flowing through the suction nozzle as well as drive units operated by an electric motor. In the case of the air-driven drive units, the entire suction air flow flowing through the suction nozzle or only a part of this suction air flow is introduced into the blading of an air turbine. With the interposition of a gearbox, the high speed of the air turbine is reduced to the desired working speed of the brush roller and at the same time the torque required for a brushing action is increased. The rotary motion is generally transmitted to the brush roller via a belt drive.
An electric universal motor is generally used in the drive units operated by an electric motor. This electric motor is known to be supplied with electrical energy via the mains connection line feeding the suction cleaning device. The power supply line for the electric drive unit driving the brush roller is connected to an electrical plug-in connection, which is attached specifically to the connection of additional devices to the vacuum cleaning device. The use of air-driven drive units for driving the rotating brush roller has the advantage of cheap manufacture, since the air turbine used for the drive can be manufactured very inexpensively with a possible intermediate gear from a plastic material using the injection molding process. In addition, there are no costs for the electrical power cord with the switching, control and display elements. The electrical power supply line is often held by means of clips on the suction line which connects the suction nozzle to the suction cleaning device, which is not very attractive from an optical point of view. Suction lines with integrated mains connection lines are also used. However, these are very complex and expensive.

Die durch ein luftgetriebenes Antriebsaggregat angetriebenen Bürstenwalzen haben jedoch den Nachteil, daß die vom luftgetriebenen Aggregat abgegebene Antriebsleistung nur für verhältnismäßig schmale Saugdüsen ausreichend ist. Außerdem ist eine Tiefenreinigung des zu reinigenden Teppichflors nicht gegeben, da das zur Verfügung stehende Drehmoment nicht ausreicht, die Beborstung der Bürstenwalze ausreichend tief durch den Teppichflor zu führen. Negativ auf die Antriebsleistung wirkt zusätzlich noch die Verminderung des Saugluftstromes durch das Zusetzen des Filters mit fortschreitender Staubaufnahme sowie die Drosselung der Einströmöffnung bei deren zu dichtem Aufliegen auf der zu reinigenden Teppichfläche. Die Verwendung eines elektromotorisch betriebenen Antriebsaggregates zum Antrieb der Bürstenwalze schließt diese Nachteile aus, ist jedoch erheblich aufwendiger und damit teurer, zur intensiven Reinigung insbesondere mit breiten Arbeitsbahnen jedoch unerläßlich.However, the brush rollers driven by an air-driven drive unit have the disadvantage that the drive power emitted by the air-driven unit is only sufficient for relatively narrow suction nozzles. In addition, there is no deep cleaning of the carpet pile to be cleaned, since the torque available is not sufficient to guide the bristle of the brush roller sufficiently deep through the carpet pile. The reduction in the suction air flow due to the clogging of the filter with increasing dust absorption and the throttling of the inflow opening when it lies too tightly on the carpet surface to be cleaned also have a negative effect on the drive power. The use of an electric motor-driven drive unit for driving the brush roller eliminates these disadvantages, but is considerably more complex and therefore more expensive, but is essential for intensive cleaning, particularly with wide working tracks.

Die der Erfindung zugrundeliegende Aufgabe besteht darin, eine Saugdüse mit einer rotierenden Bürstenwalze zu schaffen, die ohne Aufwand sowohl mit einem luftgetriebenen Antriebsaggregat als auch mit einem elektromotorisch getriebenen Antriebsaggregat betreibbar ist und mit wenigen Handgriffen von dem einen Antriebsaggregat auf das andere Antriebsaggregat umrüstbar ist.The object on which the invention is based is to create a suction nozzle with a rotating brush roller which can be easily operated both with an air-driven drive unit and with an electric motor-driven drive unit and can be converted from one drive unit to the other drive unit in a few simple steps.

Die Lösung dieser Aufgabe gelingt wie folgt:
Das Gehäuseinnere der Saugdüse wird mit einem ausreichend großen Freiraum versehen, der so dimensioniert ist, daß sowohl das luftgetriebene Antriebsaggregat mit seinem Luftführungskanal als auch, im Austausch, das elektromotorisch betriebene Antriebsaggregat mit den elektrischen Zusatzteilen eingebaut werden kann. Der von der Düsenaußenseite zugängliche, eines dieser Antriebsaggregate aufnehmende Freiraum wird durch eine Abdeckung verschlossen, welche z.B. mit Schrauben wiederholt leicht lösbar am Düsengehäuse befestigt ist. Auf der dem Innenraum der Saugdüse zugewandten Seite dieser Abdeckung ist entweder das luftgetriebene Antriebsaggregat oder das elektromotorisch getriebene Antriebsaggregat montiert. Die den Antrieb der Bürstenwalze bewirkende Abtriebswelle der beiden alternativen Antriebsaggregate kommt im Umrüstungsfall so zu liegen, dass der zur Bürstenwalze führende Riementrieb für die Abtriebswellen beider Antriebsaggregate verwendet wird. Diese wahlweise Verwendbarkeit eines luftgetriebenen bzw. eines elektromotorisch getriebenen Antriebsaggregates für eine mit einer rotierenden Bürstenwalze ausgestatten Saugdüse für ein Saugreinigungsgerät hat den Vorteil, dass der Hersteller dieser Bürstsaugdüsen bei geringster Lagerhaltung ohne Verzögerung in der Belieferung, entsprechend dem Kundenwunsch,rasch reagieren kann. Ausserdem hat der Verbraucher, der erfahrungsgemäß zuerst zur preisgünstigeren Ausführung neigt, nachträglich die Möglichkeit, die bereits gekaufte Bürstsaugdüse mit wenigen Handgriffen umzurüsten.This task is solved as follows:
The interior of the suction nozzle is provided with a sufficiently large free space, which is dimensioned so that both the air-driven drive unit with its air duct and, in exchange, the electromotive drive unit with the additional electrical parts can be installed. The free space accessible from the outside of the nozzle and accommodating one of these drive units is closed by a cover which is repeatedly attached to the nozzle housing in a manner that is easily detachable, for example with screws. On the side of this cover facing the interior of the suction nozzle is either the air-driven drive unit or the electric motor-driven drive unit is installed. The output shaft of the two alternative drive units which drives the brush roller comes to rest in the case of retrofitting such that the belt drive leading to the brush roller is used for the output shafts of both drive units. This optional use of an air-driven or an electric motor-driven drive unit for a suction nozzle equipped with a rotating brush roller for a vacuum cleaning device has the advantage that the manufacturer of these brush suction nozzles can react quickly without delay in delivery, in accordance with the customer's request, without delay in delivery. In addition, the consumer, who experience has shown that he tends to be more economical at a later date, has the option of retrofitting the brush suction nozzle already purchased with just a few simple steps.

Die Zeichnungen zeigen ein Ausführungsbeispiel:

Fig. 1
zeigt die Bürstsaugdüse in der Ansicht von oben mit einem luftgetriebenen Antriebsaggregat zum Antrieb der Bürstenwalze
Fig. 2
zeigt die Bürstsaugdüse in der Ansicht von oben mit einem elektromotorisch getriebenen Antriebsaggregat zum Antrieb der Bürstenwalze
Fig. 3
zeigt die Bürstsaugdüse in der Ansicht von oben ohne die,eines der wahlweise zu verwendenden Antriebsaggregate aufnehmenden Abdeckplatte
Fig. 4
zeigt die Abdeckplatte mit einem teilweise dargestellten,luftgetriebenen Antriebsaggregat und einem teilweise dargestellten elektromotorisch getriebenen Antriebsaggregat
The drawings show an embodiment:
Fig. 1
shows the brush suction nozzle in the view from above with an air-driven drive unit for driving the brush roller
Fig. 2
shows the brush suction nozzle in the view from above with an electric motor-driven drive unit for driving the brush roller
Fig. 3
shows the brush suction nozzle in the view from above without the cover plate receiving one of the optionally used drive units
Fig. 4
shows the cover plate with a partially shown, air-driven drive unit and a partially shown electric motor-driven drive unit

Die Bürstsaugdüse 1 ist an ihrer Rückseite mit einem gelenkig gelagerten Anschlußstutzen 2 versehen, an den eine nicht dargestellte, zum ebenfalls nicht dargestellten Saugreinigungsgerät führende Saugleitung zur lufttechnischen Verbindung anschliessbar ist. Die Bürstsaugdüse 1 wird beim Reinigungsvorgang mit der an ihrer Unterseite angeordneten Saugöffnung, welche dicht über der zu reinigenden Bodenfläche zu liegen kommt, über die zu reinigende Fläche bewegt, wobei die Düse auf den hinteren Fahrrollen 3 und den vordern Stützrollen leicht beweglich gelagert ist. Zur Unterstützung der saugenden Reinigung durch den vom Saugreinigungsgerät erzeugten Saugluftstrom ist innerhalb des Düsengehäuses 5 eine meist höhenverstellbare Bürstenwalze 6 rotierend in den Lagern 7 gelagert, deren Beborstung 8 die Einsaugöffnung an der Düsenunterseite durchragt und in den Flor des zu reinigenden textilen Bodenbelags eindringt und diesen bürstend durchgleitet. Zur Erzeugung der Bürstwirkung wird die Bürstenwalze 6 durch ein beispielsweise luftgetriebenes Antriebsaggregat 11 über den Riementrieb 12 unter Zwischenschaltung eines Reduziergetriebes 13 angetrieben. Der vom nicht dargestellten Saugreinigungsgerät erzeugte Saugluftstrom strömt durch die Saugöffnung der Bürstsaugdüse 1 der Beschaufelung 14 der Luftturbine 15, welche im Turbinengehäuse 16 gelagert ist zu und von hier durch den Anschlußstutzen 2 in die nicht dargestellte, zum Saugreinigungsgerät führende Saugleitung. Zur Verringerung der von der Luftturbine 15 abgegebenen hohen Drehzahl und zur Erhöhung des erzielbaren Drehmomentes an der Bürstenwalze 6 ist zwischen der Luftturbine 15 und der Abtriebsriemenscheibe 17 ein Reduziergetriebe 13 eingebaut. Die Luftturbine 15 ist mit dem Reduziergetriebe 13 aui einer Abdeckplatte 20 montiert, welche passgenau in der oberen Wand 21 des Gehäuses der Bürstsaugdüse 1 einliegt und durch die Schrauben 22 leicht lösbar gehalten wird. Die Luftturbine 15 mit dem Zwischengetriebe 13 ragt in den Freiraum 23 des Düsengehäuses ein und ist so angeordnet, dass die auf der Welle 24 des Reduziergetriebes 13 befestigte Abtriebsriemenscheibe 17 mit dem Riementrieb 12 wirkverbindbar ist. Der Innenraum des Turbinengehäuses 16 ist durch Strömungswege mit der Saugöffnung der Saugdüse 1 und mit dem Anschlußstutzen 2 lufttechnisch verbunden.The back of the brush suction nozzle 1 is provided with an articulated connection piece 2 to which a suction line (not shown) which leads to the suction cleaning device (also not shown) can be connected for the ventilation connection. The brush suction nozzle 1 is moved during the cleaning process with the suction opening arranged on its underside, which comes to lie closely above the floor surface to be cleaned, over the surface to be cleaned, the nozzle being mounted on the rear driving rollers 3 and the front support rollers in a slightly movable manner. To support the suction cleaning by the suction air flow generated by the suction cleaning device, a usually height-adjustable brush roller 6 is rotatably mounted in the bearings 7 within the nozzle housing 5, the bristle 8 of which protrudes through the suction opening on the underside of the nozzle and penetrates into the pile of the textile floor covering to be cleaned and brushes it slides through. To generate the brushing effect, the brush roller 6 is driven by, for example, an air-driven drive unit 11 via the belt drive 12 with the interposition of a reduction gear 13. The suction air flow generated by the suction cleaning device, not shown, flows through the suction opening of the brush suction nozzle 1 of the blading 14 of the air turbine 15, which is mounted in the turbine housing 16, and from here through the connecting piece 2 into the suction line, not shown, leading to the suction cleaning device. To reduce the high speed output by the air turbine 15 and to increase the torque that can be achieved on the brush roller 6, a reduction gear 13 is installed between the air turbine 15 and the driven pulley 17. The air turbine 15 is mounted with the reduction gear 13 on a cover plate 20 which lies precisely in the upper wall 21 of the housing of the brush suction nozzle 1 and is easily detachably held by the screws 22. The air turbine 15 with the intermediate gear 13 protrudes into the free space 23 of the nozzle housing and is arranged in such a way that the driven pulley fixed on the shaft 24 of the reduction gear 13 17 is operatively connected to the belt drive 12. The interior of the turbine housing 16 is connected in terms of ventilation by flow paths to the suction opening of the suction nozzle 1 and to the connecting piece 2.

Da die Reinigungswirkung der durch den Saugluftstrom betriebenen Bürstenwalze 6 bei stark verschmutzten textilen Bodenbelägen und bei besonders robust konstruierten Belägen sowie bei eine größere Arbeitsbreite einschließenden Bürstdüsen nicht ausreichend ist, wird hierzu meist eine Bürstsaugdüse mit einer elektromotorisch angetriebenen Bürstenwalze 6 bevorzugt. Um dieser Erfordernis gerecht zu werden, ist ein elektromotorisch getriebenes Antriebsaggregat 26 vorgesehen und so ausgebildet, daß es zur Ermöglichung einer Auswechselung mit dem luftgetriebenen Antriebsaggregat 11 ebenfalls auf einer Abdeckplatte 20 montiert ist. Die auf der Welle 27 des Elektromotors 28 montierte Abtriebsriemenscheibe 17 ist paßgenau zum Riementrieb 12 ausgerichtet, so daß das elektromotorisch getriebene Antriebsaggregat 26 ohne Umbaumaßnahmen mit wenigen Handgriffen, nur duch Lösen der Schrauben 22 gegen das luftgetriebene Antriebsaggregat 11 austauschbar ist. Über die Netzanschlußleitung 29 ist das elektromotorisch getriebene Antriebsaggregat 26 über eine Steckkupplung trennbar mit dem Saugreinigungsgerät verbunden, wobei die Netzanschlußleitung 29 sowohl frei hängend durch Halteklammern an der Saugleitung befestigt ist, als auch als in die Saugleitung integrierte Netzanschlußleitung ausgebildet sein kann, was jedoch sehr aufwendig und teuer ist im Verhältnis zur frei hängenden Netzanschlußleitung, die beim Arbeiten jedoch häufig stört und optisch nicht besonders ansprechend ist.Since the cleaning effect of the brush roller 6 operated by the suction air flow is not sufficient in the case of heavily soiled textile floor coverings and in the case of particularly robustly constructed coverings and in the case of brush nozzles including a larger working width, a brush suction nozzle with an electromotive driven brush roller 6 is usually preferred for this purpose. In order to meet this requirement, an electric motor-driven drive unit 26 is provided and designed so that it is also mounted on a cover plate 20 to enable replacement with the air-driven drive unit 11. The driven pulley 17 mounted on the shaft 27 of the electric motor 28 is aligned precisely with the belt drive 12, so that the electromotive drive unit 26 can be exchanged with the air-driven drive unit 11 in a few simple steps, only by unscrewing the screws 22, by loosening the screws 22. Via the power cord 29, the electric motor-driven drive unit 26 is separably connected to the suction cleaning device via a plug-in coupling, the power cord 29 being attached to the suction line in a freely hanging manner by retaining clips, and also being designed as a power cord integrated into the suction line, which, however, is very expensive and is expensive in relation to the free-hanging power cord, which, however, often interferes with work and is not particularly appealing visually.

Die Ausbildung des elektromotorisch angetriebenen Aggregats ist in Verbindung mit seiner Lagerung auf der Abdeckplatte 20 so getroffen, daß gleichzeitig mit dessen Austausch/Einsatz entsprechende, etwa in inneren Wandungsöffnungen des Düsengehäuses befindliche Luftdurchtrittsöffnungen für den Betrieb des luftgetriebenen Aggregats abgedeckt bzw. direkt zum Saugbereich durchgeführt sind.The design of the electric motor-driven unit is made in connection with its storage on the cover plate 20 so that at the same time with its replacement / use, corresponding air passage openings, for example in the inner wall openings of the nozzle housing, are covered for the operation of the air-driven unit or are carried out directly to the suction area .

Claims (5)

  1. Brush suction nozzle for a suction cleaning device (vacuum cleaner), in which there is mounted, preferably height-adjustably, a roller-shaped brush which may be rotatably driven by means of a drive unit and which acts on the surface to be cleaned, characterized in that the drive unit (11) which is driven by an air turbine (15) and which is flowed through by the suction air flow is interchangeable with a drive unit (26) which is driven by an electric motor.
  2. Brush nozzle for a suction cleaning device according to Claim 1, characterized in that the drive unit (11) driven by an air turbine (15) and the drive unit (26) driven by an electric motor are each individually mounted on a cover plate (20) and the cover plate (20) covers a free space (23) of the brush (1).
  3. Brush nozzle for a suction cleaning device according to Claim 2, characterized in that the cover plate (20) is inserted to fit into an (upper) wall (21) of the nozzle housing.
  4. Brush nozzle for a suction cleaning device according to Claims 1 to 3, characterized in that the two mutually interchangeable drive units (11, 26) are prepared for interchanging in the state ready for operation, with a driving belt plate (17) secured to the output shafts (18, 27).
  5. Brush nozzle for a suction cleaning device according to Claims 1 to 4, characterized in that the power connection line (29), which is necessary for the interchangeable drive unit (26) driven by an electric motor, and the switching, control and display device are mounted ready for operation on the cover plate (20).
EP88117978A 1987-11-05 1988-10-28 Suction brush nozzle for a suction cleaning apparatus (suction cleaner) Expired - Lifetime EP0315067B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3737548 1987-11-05
DE19873737548 DE3737548A1 (en) 1987-11-05 1987-11-05 CONVERTIBLE DRIVE DEVICE ON A BRUSH SUCTION NOZZLE

Publications (3)

Publication Number Publication Date
EP0315067A2 EP0315067A2 (en) 1989-05-10
EP0315067A3 EP0315067A3 (en) 1991-02-06
EP0315067B1 true EP0315067B1 (en) 1992-12-30

Family

ID=6339835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117978A Expired - Lifetime EP0315067B1 (en) 1987-11-05 1988-10-28 Suction brush nozzle for a suction cleaning apparatus (suction cleaner)

Country Status (2)

Country Link
EP (1) EP0315067B1 (en)
DE (2) DE3737548A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19522981A1 (en) * 1995-06-28 1997-01-02 Fedag Romanshorn Fa Electric vacuum cleaner suction tool
DE19618633C1 (en) * 1996-05-09 1997-11-20 Fedag Romanshorn Fa Cleaning tool for suction cleaning device
GB2321393B (en) * 1997-01-10 2001-07-25 White Consolidated Ind Inc Air filtrating self-propelled upright vacuum cleaner
NL1017514C2 (en) * 2001-03-06 2002-09-09 Ind Vac Ivac B V Vacuum cleaner with interchangeable motor.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199839A (en) * 1978-10-12 1980-04-29 Health-Mor, Inc. Suction cleaner power nozzle construction
US4300262A (en) * 1979-11-28 1981-11-17 Black & Decker Inc. Air-powered vacuum cleaner floor tool
DE3017072A1 (en) * 1980-05-03 1981-11-05 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal DRIVE DEVICE FOR FLOOR CARE DEVICE

Also Published As

Publication number Publication date
EP0315067A3 (en) 1991-02-06
EP0315067A2 (en) 1989-05-10
DE3877134D1 (en) 1993-02-11
DE3737548A1 (en) 1989-05-18

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