EP0315067A2 - 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
EP0315067A2
EP0315067A2 EP88117978A EP88117978A EP0315067A2 EP 0315067 A2 EP0315067 A2 EP 0315067A2 EP 88117978 A EP88117978 A EP 88117978A EP 88117978 A EP88117978 A EP 88117978A EP 0315067 A2 EP0315067 A2 EP 0315067A2
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EP
European Patent Office
Prior art keywords
suction
driven
brush
drive unit
nozzle
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Granted
Application number
EP88117978A
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German (de)
French (fr)
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EP0315067B1 (en
EP0315067A3 (en
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Siegfried Maier
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Individual
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Individual
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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 for connecting 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 in terms of appearance.
  • 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 such 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 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 brush suction nozzle 1 is provided on its rear side with an articulated connection piece 2 to which a suction line (not shown) leading to the suction cleaning device (also not shown) can be connected for the air 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 an air-driven drive unit 11, for example, via the belt drive 12 with the interposition of a reduction gear 13.
  • the suction air flow generated by the suction cleaning device 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.
  • 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 such that the output fastened on the shaft 24 of the reduction gear 13 pulley 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, is often bothersome when working and is not particularly visually appealing.
  • 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 .

Abstract

A vacuum brush nozzle for a vacuum cleaning apparatus, in which a height-adjustable, cylinder-type brush is mounted in a rotary manner, which brush is driven by a drive assembly via a belt drive. The drive assembly consists of an air turbine which is driven by the intake airflow which flows through the vacuum brush nozzle. This air-driven drive assembly can be exchanged by a drive assembly which is driven by an electric motor. For this purpose, fastening screws merely have to be unscrewed without further conversion work, since the electric mains connection lead is also mounted on the drive assembly driven by electric motor. It is likewise not necessary to exchange the belt drive when exchanging the drive assemblies. <IMAGE>

Description

Stand der TechnikState of the art

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 power supply 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 for connecting 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 in terms of appearance. 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 Antriebs­ aggregat 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 such 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 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 a 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.The brush suction nozzle 1 is provided on its rear side with an articulated connection piece 2 to which a suction line (not shown) leading to the suction cleaning device (also not shown) can be connected for the air 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 action, the brush roller 6 is driven by an air-driven drive unit 11, for example, 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.

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.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.

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 Abtriebs­ riemenscheibe 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 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 such that the output fastened on the shaft 24 of the reduction gear 13 pulley 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, is often bothersome when working and is not particularly visually appealing.

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. Bürstsaugdüse für ein Saugreinigungsgerät (Staubsauger), in welcher eine durch ein Antriebsaggregat rotierend an­treibbare, auf die zu reinigende Fläche einwirkende, walzenförmige Bürste, vorzugsweise höhenverstellbar, ge­lagert ist, dadurch gekennzeichnet, daß das durch eine Luftturbine (15) getriebene Antriebsaggregat (11), welches vom Saugluftstrom durchströmt ist, gegen ein elektro­motorisch getriebenes Antriebsaggregat (26) austauschbar ist.1. Brush suction nozzle for a vacuum cleaning device (vacuum cleaner), in which a rotating drive, which can be driven by a drive unit and acts on the surface to be cleaned, is preferably height-adjustable, characterized in that the drive unit (11) driven by an air turbine (15) ), through which the suction air flow flows, can be exchanged for an electric motor-driven drive unit (26). 2. Bürstdüse für ein Saugreinigungsgerät nach Anspruch 1, dadurch gekennzeichnet, daß das durch eine Luftturbine (15) getriebene Antriebsaggregat (11) und das elektromotorisch getriebene Antriebsaggregat (26) jedes für sich, auf einer Abdeckplatte (20) montiert ist und die Abdeckplatte (20) einen Freiraum (23) der Bürste (1) abdeckt.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 mounted on a cover plate (20) and the cover plate ( 20) covers a free space (23) of the brush (1). 3. Bürstdüse für ein Saugreinigungsgerät nach Anspruch 2, dadurch gekennzeichnet, daß die Abdeckplatte (20) passend in eine (obere) Wand (21) des Düsengehäuses eingesetzt ist.3. Brush nozzle for a suction cleaning device according to claim 2, characterized in that the cover plate (20) is fitted in an (upper) wall (21) of the nozzle housing. 4. Bürstdüse für ein Saugreinigungsgerät nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die beiden gegen­einander austauschbaren Antriebsaggregate (11, 26) in be­triebsbereitem Zustand mit auf den Abtriebswellen (18, 27) befestigter Abtriebsriemenscheibe (17) zum Austausch vorbereitet sind.4. Brush nozzle for a vacuum cleaning device according to claims 1 to 3, characterized in that the two mutually interchangeable drive units (11, 26) are prepared for replacement in the operational state with the output pulley (17) attached to the output shafts (18, 27). 5. Bürstdüse für ein Saugreinigungsgerät nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, dass die für das aus­tauschbare,elektromotorisch getriebene Antriebsaggregat (26) erforderliche Netzanschlussleitung (29) sowie die Schalt-, Steuer- und Anzeigeeinrichtung betriebsbereit auf der Abdeckplatte (20) aufgebracht sind.5. Brush nozzle for a suction cleaning device according to claims 1 to 4, characterized in that the power supply line (29) required for the exchangeable, electromotively driven drive unit (26) and the switching, control and display device are applied ready for use on the cover plate (20) are.
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 true EP0315067A2 (en) 1989-05-10
EP0315067A3 EP0315067A3 (en) 1991-02-06
EP0315067B1 EP0315067B1 (en) 1992-12-30

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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)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735965A1 (en) * 1995-06-28 1997-01-03 Fedag VACUUM CLEANER
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.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19618633C1 (en) * 1996-05-09 1997-11-20 Fedag Romanshorn Fa Cleaning tool for suction cleaning device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032263A (en) * 1978-10-12 1980-05-08 Health Mor Inc Suction cleaner power nozzle construction
EP0030303A1 (en) * 1979-11-28 1981-06-17 Black & Decker Inc. Air-powered floor tool for a vacuum cleaner
GB2074850A (en) * 1980-05-03 1981-11-11 Vorwerk Co Interholding Motor housing arrangement in floor care appliances

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032263A (en) * 1978-10-12 1980-05-08 Health Mor Inc Suction cleaner power nozzle construction
EP0030303A1 (en) * 1979-11-28 1981-06-17 Black & Decker Inc. Air-powered floor tool for a vacuum cleaner
GB2074850A (en) * 1980-05-03 1981-11-11 Vorwerk Co Interholding Motor housing arrangement in floor care appliances

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735965A1 (en) * 1995-06-28 1997-01-03 Fedag VACUUM CLEANER
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.
WO2002069776A1 (en) * 2001-03-06 2002-09-12 Industrial Vac Ivac B.V. Vacuum cleaner with exchangeable motor

Also Published As

Publication number Publication date
EP0315067B1 (en) 1992-12-30
EP0315067A3 (en) 1991-02-06
DE3877134D1 (en) 1993-02-11
DE3737548A1 (en) 1989-05-18

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