EP0186005A1 - Wheeled brush-suction nozzle - Google Patents

Wheeled brush-suction nozzle Download PDF

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Publication number
EP0186005A1
EP0186005A1 EP85115520A EP85115520A EP0186005A1 EP 0186005 A1 EP0186005 A1 EP 0186005A1 EP 85115520 A EP85115520 A EP 85115520A EP 85115520 A EP85115520 A EP 85115520A EP 0186005 A1 EP0186005 A1 EP 0186005A1
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EP
European Patent Office
Prior art keywords
suction
brush
roller
mouthpiece
bristles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85115520A
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German (de)
French (fr)
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EP0186005B1 (en
Inventor
Frieder Dr. Voigt
Wolfgang Dipl.-Ing. Fleischer (Fh)
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Siemens AG
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Siemens AG
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Publication date
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Publication of EP0186005A1 publication Critical patent/EP0186005A1/en
Application granted granted Critical
Publication of EP0186005B1 publication Critical patent/EP0186005B1/en
Expired 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
    • A47L9/0416—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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/34—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with height adjustment of nozzles or dust-loosening tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • 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 provided with impellers, which has a height-adjustable, rotatable brush roller which is arranged in a roller chamber in the mouthpiece housing and which, with its bristles in the working position, reaches through a suction slot provided in the base plate of the roller chamber and is driven by a drive unit arranged in the mouthpiece housing.
  • Such a brush suction mouthpiece is known from DE-A-20 57 466.
  • the use of such mouthpieces is practically only possible on textile floor surfaces.
  • the floor slab with the suction slot must be lifted off the floor surface to avoid scratching both the floor covering and the floor slab.
  • the base plate is arranged higher than the bearing surface of the impellers.
  • the cleaning effect of the mouthpiece on hard floors is considerably impaired, since the flow velocity of the suction air below the base plate decreases considerably as a result of the distance between the base plate.
  • the rotating brush roller also interferes. If the drive of the brush roller were stopped, the stationary brush roller partially blocked the suction slot and further reduced the suction power of the mouthpiece. In addition, a large proportion of the dirt that is sucked up settles on the brush roller.
  • the invention has for its object to form a brush suction mouthpiece of the type described in such a way that with such a mouthpiece even on hard floors good cleaning result can be achieved without the risk of contamination of the brush roller.
  • the object is achieved according to the invention in that in the area in which the base plate merges upwards into the mouthpiece housing or is connected thereto, an elastic sleeve extending over the full width of the mouthpiece is arranged on each side of the suction slot , wherein both sleeves extend to the support level or just up to the support level of the impellers that the brush roller is adjustable in height so far that its bristles no longer touch the surface to be extracted and can be locked in this position.
  • the sleeves create a largely closed space under the suction slot and the inflow of the suction air is concentrated on the slots existing between the edges of the sleeve and the surface to be extracted.
  • the suction air reaches high speeds here and is therefore able to carry more dirt with it.
  • the hard floor is no longer touched by the raised brush roller, so that the dirt is no longer thrown away from the brush roller. Wear of the brush roller is also avoided.
  • Dirt pick-up in the immediate vicinity of the walls delimiting the floor to be suctioned off is achieved in that a continuous front suction slot or several front suction openings are provided in the base plate immediately after the front sleeve.
  • a braking device which brakes the rotation of the brush roller in its uppermost position is arranged in the roller chamber.
  • a particularly simple construction of the braking device consists of a bar arranged in the roller chamber, on which the brush roller brushes with its bristles in its uppermost position. The brush roller is braked in the same way as when brushing the bristles over the floor surface to be cleaned.
  • a reduction in the sliding resistance is achieved in that at least the sleeve arranged on the front side wall of the roller chamber is fastened to the side wall only in the region of its upper edge and lies loosely against the side wall in the region from the fastening point to the end of the side wall.
  • the brush roller 7 is, as indicated by an arrow 10, arranged in the roller chamber 6 to be adjustable in height.
  • the adjustment mechanism required for this is not shown in the drawing.
  • the height adjustment can be carried out, for example, by means of a pivotally mounted rocker arm, with one end of which the axis of rotation of the brush roller is connected and the other end of which is coupled to an operating element which is adjustable from outside the housing.
  • the brush roller 7 in the roller chamber 6 can be adjusted upwards to such an extent that its bristles no longer emerge from the suction slot 12 provided in the base plate 11 of the roller chamber 6.
  • a bar 13 is arranged which is dimensioned such that the brush roller 7 brushes the bar 13 in its upper position with its bristles. The brush roller 7 can be locked in the upper position.
  • the cuffs 16 and 17 can be designed as a one-piece strip made of rubber, plastic, non-woven material or the like, but also as a tight brush strip.
  • the cuff 16 arranged on the front side wall 14 of the roller chamber 6 is fastened to the side wall 14 relatively high up. In the lower area, the cuff 16 only rests on the side wall 14.
  • a front suction slot 18 is provided in the base plate 11 of the roller chamber 6 immediately after the front side wall 14. Instead of such a front suction slot 18, a plurality of front suction openings arranged in a row can also be provided. 11 is received - by the Frontsaugschlitz 18, a stronger suction air stream through which the dirt in the front region of the base plate results in immediately behind the fixed to the front side wall 14 cuff sixteenth This achieves a good cleaning effect right up to the boundary walls of the surface to be extracted.
  • the brush roller 7 can be brought into its upper position when vacuuming on hard ground, so that its bristles no longer touch the ground and thus the ground can throw away stored dirt. If the brush roller 7 is driven by a turbine actuated by the suction air, then it is advantageous that its rotational movement is braked in the upper position in order to avoid an increase in the speed of the practically idling turbine associated with a corresponding noise development.
  • the strip 13 is provided on the ceiling of the roller chamber 6, on which the brush roller 7 brushes with its bristles and is thereby braked as when the carpet pile is slipped on. By lifting the brush roller 7, the suction slot 12 is released so that the suction air can flow through unhindered. The fact that the brush roller 7 continues to rotate in the upper position prevents dirt from being deposited thereon.

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

Abstract

1. A brush suction nozzle which is provided with wheels and which comprises a rotatable brush roller (7), which is arranged so as to be height-adjustable in a roller chamber (6) formed in the nozzle housing (1) and which in the operative position protects with its bristles through a suction slot (12) provided in the base plate (11) of the roller chamber (6) and is driven by a drive unit (4) arranged in the nozzle housing (1), characterized in that in the region in which the base plate (11) extends upwards into the nozzle housing (1) or is connected to the latter, a resilient collar (16 or 17), which extends over the full width or the nozzle, is arranged on each side of the suction slot (12), both collars (16 and 17) extending as far as or ending shortly before the bearing plane (19) of the wheels (2 and 3), and furthermore in that the brush roller (7) can be adjusted in its height to such a degree that its bristles no longer touch the surface which is to be vacuumed and can be locked in this position.

Description

Die Erfindung betrifft ein mit Laufrädern versehenes Bürstsaugmundstück, das in einer im Mundstückgehäuse ausgebildeten Walzenkammer eine höhenverstellbar angeordnete, drehbare Bürstenwalze aufweist, die mit ihren Borsten in Arbeitsstellung durch einen in der Bodenplatte der Walzenkammer vorgesehenen Saugschlitz hindurchgreift und durch eine im Mundstückgehäuse angeordnete Antriebseinheit angetrieben ist.The invention relates to a brush suction nozzle provided with impellers, which has a height-adjustable, rotatable brush roller which is arranged in a roller chamber in the mouthpiece housing and which, with its bristles in the working position, reaches through a suction slot provided in the base plate of the roller chamber and is driven by a drive unit arranged in the mouthpiece housing.

Ein solches Bürstsaugmundstück ist durch die DE-A-20 57 466 bekannt. Der Einsatz derartiger Mundstücke ist praktisch nur auf textilen Bodenflächen möglich. Beim Einsatz auf harten Böden muß die Bodenplatte mit dem Saugschlitz von der Bodenoberfläche abgehoben sein, um ein Zerkratzen sowohl des Bodenbelages als auch der Bodenplatte zu vermeiden. Dies kann dadurch geschehen, daß die Bodenplatte gegenüber der Auflagefläche der Laufräder höher angeordnet ist. Hierdurch wird allerdings die Reinigungswirkung des Mundstückes auf harten Böden erheblich verschlechtert, da infolge des Abstandes der Bodenplatte die Strömungsgeschwindigkeit der Saugluft unter der Bodenplatte stark abnimmt. Ferner stört die drehende Bürstenwalze. Würde der Antrieb der Bürstenwalze stillgesetzt, dann versperrt die stehende Bürstenwalze den Saugschlitz zum Teil und vermindert weiterhin die Saugleistung des Mundstückes. Darüberhinaus setzt sich der aufgesaugte Schmutz zu einem erheblichen Teil an der Bürstenwalze ab.Such a brush suction mouthpiece is known from DE-A-20 57 466. The use of such mouthpieces is practically only possible on textile floor surfaces. When used on hard floors, the floor slab with the suction slot must be lifted off the floor surface to avoid scratching both the floor covering and the floor slab. This can be done in that the base plate is arranged higher than the bearing surface of the impellers. As a result, however, the cleaning effect of the mouthpiece on hard floors is considerably impaired, since the flow velocity of the suction air below the base plate decreases considerably as a result of the distance between the base plate. The rotating brush roller also interferes. If the drive of the brush roller were stopped, the stationary brush roller partially blocked the suction slot and further reduced the suction power of the mouthpiece. In addition, a large proportion of the dirt that is sucked up settles on the brush roller.

Der Erfindung liegt die Aufgabe zugrunde, ein Bürstsaugmundstück der eingangs beschriebenen Art so auszubilden, daß mit einem solchen Mundstück auch auf harten Böden ein gutes Reinigungsergebnis ohne die Gefahr der Verschmutzung der Bürstenwalze erzielbar ist.The invention has for its object to form a brush suction mouthpiece of the type described in such a way that with such a mouthpiece even on hard floors good cleaning result can be achieved without the risk of contamination of the brush roller.

Die Lösung der gestellten Aufgabe gelingt nach der Erfindung dadurch, daß in dem Bereich, in dem die Bodenplatte nach oben in das Mundstückgehäuse übergeht bzw. mit diesem verbunden ist auf jeder Seite des Saugschlitzes eine sich über die volle Breite des Mundstückes erstreckende elastische Manschette angeordnet ist, wobei sich beide Manschetten bis in die Auflageebene oder knapp bis zur Auflageebene der Laufräder erstrecken, daß ferner die Bürstenwalze in der Höhe soweit verstellbar ist, daß ihre Borsten nicht mehr die abzusaugende Fläche berühren und in dieser Stellung arretierbar ist. Durch die Manschetten wird unter dem Saugschlitz ein weitgehend geschlossener Raum geschaffen und das Einströmen der Saugluft auf die zwischen den Manschettenkanten und der abzusaugenden Fläche bestehenden Schlitze konzentriert. Die Saugluft erreicht hier hohe Geschwindigkeiten und ist daher in der Lage, mehr Schmutz mitzureißen. Der harte Boden wird infolge der angehobenen Bürstenwalze nicht mehr von dieser berührt, so daß der Schmutz auch nicht mehr von der Bürstenwalze weggeschleudert wird. Außerdem wird eine Abnutzung der Bürstenwalze vermieden.The object is achieved according to the invention in that in the area in which the base plate merges upwards into the mouthpiece housing or is connected thereto, an elastic sleeve extending over the full width of the mouthpiece is arranged on each side of the suction slot , wherein both sleeves extend to the support level or just up to the support level of the impellers that the brush roller is adjustable in height so far that its bristles no longer touch the surface to be extracted and can be locked in this position. The sleeves create a largely closed space under the suction slot and the inflow of the suction air is concentrated on the slots existing between the edges of the sleeve and the surface to be extracted. The suction air reaches high speeds here and is therefore able to carry more dirt with it. The hard floor is no longer touched by the raised brush roller, so that the dirt is no longer thrown away from the brush roller. Wear of the brush roller is also avoided.

Eine Schmutzaufnahme in unmittelbarer Nähe von den den abzusaugenden Boden begrenzenden Wänden wird dadurch erreicht, daß unmittelbar nach der vorderen Manschette ein durchgehender Frontsaugschlitz oder mehrere Frontsaugöffnungen in der Bodenplatte vorgesehen sind.Dirt pick-up in the immediate vicinity of the walls delimiting the floor to be suctioned off is achieved in that a continuous front suction slot or several front suction openings are provided in the base plate immediately after the front sleeve.

Bei einem Bürstsaugmundstück, das eine durch die Saugluft angetriebene Turbine als Antriebseinheit für die Bürstenwalze aufweist, tritt bei Leerlauf der Bürstenwalze in der angehobenen Stellung eine Erhöhung der Turbinendrehzahl auf, die zu einer Verstärkung des Turbinengeräusches führt. Ein solches störendes Geräusch kann nach einer Ausgestaltung der Erfindung dadurch vermieden werden, daß eine, die Rotation der Bürstenwalze in ihrer obersten Stellung abbremsende Bremsvorrichtung in der Walzenkammer angeordnet ist. Eine im konstruktiven Aufbau besonders einfache Bremsvorrichtung besteht aus einer in der Walzenkammer angeordneten Leiste, an der die Bürstenwalze in ihrer obersten Stellung mit ihren Borsten streift. Die Bürstenwalze wird dadurch in der gleichen Weise gebremst, wie beim Streifen der Borsten über die zu reinigende Bodenfläche.In the case of a brush suction nozzle, which has a turbine driven by the suction air as the drive unit for the brush roller, an increase in the turbine speed occurs when the brush roller is idling in the raised position on, which leads to an increase in turbine noise. Such a disturbing noise can be avoided according to one embodiment of the invention in that a braking device which brakes the rotation of the brush roller in its uppermost position is arranged in the roller chamber. A particularly simple construction of the braking device consists of a bar arranged in the roller chamber, on which the brush roller brushes with its bristles in its uppermost position. The brush roller is braked in the same way as when brushing the bristles over the floor surface to be cleaned.

Eine Verminderung des Schiebewiderstandes wird dadurch erzielt, daß zumindest die an der vorderen Seitenwand der Walzenkammer angeordnete Manschette nur im Bereich ihres oberen Randes an der Seitenwand befestigt und in dem Bereich von der Befestigungsstelle bis zum Ende der Seitenwand lose an dieser anliegt.A reduction in the sliding resistance is achieved in that at least the sleeve arranged on the front side wall of the roller chamber is fastened to the side wall only in the region of its upper edge and lies loosely against the side wall in the region from the fastening point to the end of the side wall.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles wird der Anmeldungsgegenstand nachfolgend näher beschrieben:

  • Mit 1 ist das Gehäuse eines Bürstsaugmundstückes bezeichnet, das mit vorderen und hinteren Laufrädern 2 und 3 versehen ist und das eine Antriebseinheit 4 enthält, welche über einen Riemen 5 eine in einer Walzenkammer 6 angeordnete Bürstenwalze 7 antreibt. Mit der Walzenkammer 6 ist ein durch das Gehäuse 1 zu dessen hinterer Begrenzungswand hindurchgeführter Luftkanal 8 verbunden, an den ein mit einem Staubsauger verbundenes Saugrohr 9 anschließbar ist. Die Antriebseinheit 4 kann ein elektrischer Motor oder auch eine von der Saugluft angetriebene Turbine sein.
The subject of the application is described in more detail below using an exemplary embodiment shown in the drawing:
  • 1 with the housing of a brush suction nozzle is designated, which is provided with front and rear wheels 2 and 3 and which contains a drive unit 4 which drives a brush roller 7 arranged in a roller chamber 6 via a belt 5. An air duct 8, which is passed through the housing 1 to its rear boundary wall and to which a suction pipe 9 connected to a vacuum cleaner can be connected, is connected to the roller chamber 6. The drive unit 4 can be an electric motor or a turbine driven by the suction air.

Die Bürstenwalze 7 ist, wie durch einen Pfeil 10 angedeudet, in der Walzenkammer 6 höhenverstellbar angeordnet. Die hierfür erforderliche Verstellmechanik ist in der Zeichnung nicht dargestellt. Die Höhenverstellung kann beispielsweise mittels einer verschwenkbar gelagerten Schwinge erfolgen, mit deren einem Ende die Drehachse der Bürstenwalze verbunden ist und mit deren anderem Ende ein von außerhalb des Gehäuses verstellbares Bedienelement gekoppelt ist. Mittels der Verstellmechanik kann die Bürstenwalze 7 in der Walzenkammer 6 soweit nach oben verstellt werden, daß ihre Borsten nicht mehr aus dem in der Bodenplatte 11 der Walzenkammer 6 vorgesehenen Saugschlitz 12 heraustreten. An der Decke der Walzenkammer 6 ist eine Leiste 13 angeordnet, die so bemessen ist, das die Bürstenwalze 7 in ihrer oberen Stellung mit ihren Borsten die Leiste 13 streift. Die Bürstenwalze 7 kann in der oberen Stellung arretiert werden.The brush roller 7 is, as indicated by an arrow 10, arranged in the roller chamber 6 to be adjustable in height. The adjustment mechanism required for this is not shown in the drawing. The height adjustment can be carried out, for example, by means of a pivotally mounted rocker arm, with one end of which the axis of rotation of the brush roller is connected and the other end of which is coupled to an operating element which is adjustable from outside the housing. By means of the adjustment mechanism, the brush roller 7 in the roller chamber 6 can be adjusted upwards to such an extent that its bristles no longer emerge from the suction slot 12 provided in the base plate 11 of the roller chamber 6. On the ceiling of the roller chamber 6, a bar 13 is arranged which is dimensioned such that the brush roller 7 brushes the bar 13 in its upper position with its bristles. The brush roller 7 can be locked in the upper position.

Zu beiden Seiten des Saugschlitzes 12 sind an den nach oben gerichteten Seitenwänden 14 und 15 der Walzenkammer 6 elastische Manschetten 16 und 17 befestigt, die sich bis in die Auflageebene 19 oder knapp bis zu der Auflageebene 19 der Laufräder 2 und 3 erstrecken. Die Manschetten 16 und 17 können als einteilige Leiste aus Gummi, Kunststoff, Fließstoff oder dergleichen aber auch als dichte Bürstenleiste ausgebildet sein. Die an der vorderen Seitenwand 14 der Walzenkammer 6 angeordnete Manschette 16 ist relativ weit oben an der Seitenwand 14 befestigt. Im unteren Bereich liegt die Manschette 16 nur an der Seitenwand 14 an. Durch diese Art von Befestigung wird beim Hin- und Herbewegen des Mundstückes der Bewegungswiderstand bei der Rückwärtsbewegung erheblich reduziert, da sich die Manschette 16 von der Seitenwand 14 abheben kann und wegen der relativ weit oben liegenden Befestigungsstelle ein großer Hebelarm gegeben ist, so daß eine kleine Kraft zum Auslenken der Manschette genügt. Im Gegensatz hierzu legt sich die Manschette 16 bei der Vorwärtsbewegung an der Seitenwand 14 an und es verbleibt nur ein entsprechend kurzes Stück der Manschette 16, das nach unten über die Seitenwand 14 hervorsteht. Durch diese kurze überstehende Länge der Manschette wirkt diese sehr steif.On both sides of the suction slot 12 on the upward side walls 14 and 15 of the roller chamber 6 elastic sleeves 16 and 17 are attached, which extend to the support level 19 or just up to the support level 19 of the impellers 2 and 3. The cuffs 16 and 17 can be designed as a one-piece strip made of rubber, plastic, non-woven material or the like, but also as a tight brush strip. The cuff 16 arranged on the front side wall 14 of the roller chamber 6 is fastened to the side wall 14 relatively high up. In the lower area, the cuff 16 only rests on the side wall 14. With this type of attachment, the movement resistance during the backward movement is considerably reduced when the mouthpiece is being moved back and forth, since the sleeve 16 can lift off the side wall 14 and because of the relatively high-lying attachment point there is a large lever arm, so that a small one force to deflect the cuff is sufficient. In contrast to this, the cuff 16 lies against the side wall 14 during the forward movement and only a correspondingly short piece of the cuff 16 remains, which protrudes downward beyond the side wall 14. This short protruding length of the cuff makes it very stiff.

In der Bodenplatte 11 der Walzenkammer 6 ist unmittelbar nach der vorderen Seitenwand 14 ein Frontsaugschlitz 18 vorgesehen. Anstelle eines solchen Frontsaugschlitzes 18 können auch mehrere in einer Reihe angeordnete Frontsaug- öffnungen vorgesehen werden. Durch den Frontsaugschlitz 18 ergibt sich unmittelbar hinter der an der vorderen Seitenwand 14 befestigten Manschette 16 ein stärkerer Saugluftstrom, durch den der Schmutz im vorderen Bereich der Bodenplatte-11 aufgenommen wird. Dadurch wird eine gute Reinigungswirkung bis an die Begrenzungswände der abzusaugenden Fläche heran erreicht.A front suction slot 18 is provided in the base plate 11 of the roller chamber 6 immediately after the front side wall 14. Instead of such a front suction slot 18, a plurality of front suction openings arranged in a row can also be provided. 11 is received - by the Frontsaugschlitz 18, a stronger suction air stream through which the dirt in the front region of the base plate results in immediately behind the fixed to the front side wall 14 cuff sixteenth This achieves a good cleaning effect right up to the boundary walls of the surface to be extracted.

Durch die zu beiden Seiten des Saugschlitzes 12 angeordneten Manschetten 16 und 17 ergeben sich beim Saugen von textilen Böden keine Nachteile, da die Manschetten 16 und 17 in den Teppichflor eintauchen. Durch dieses Eintauchen wird der Teppichflor im Gegenteil sogar geöffnet, so daß die Saugluft in tiefere Regionen des Teppichflores eindringen kann. Beim Saugen auf hartem Boden ergibt sich zwischen den Enden der Manschetten 16 und 17 und dem harten Boden jeweils ein enger Schlitz, durch den die Saugluft mit hoher Geschwindigkeit hindurchströmt und somit in der Lage ist, den Schmutz von dem harten Boden aufzunehmen.Because of the cuffs 16 and 17 arranged on both sides of the suction slot 12, there are no disadvantages when vacuuming textile floors, since the cuffs 16 and 17 are immersed in the carpet pile. On the contrary, this immersion opens the carpet pile so that the suction air can penetrate into deeper regions of the carpet pile. When vacuuming on hard floor, there is a narrow slot between the ends of the sleeves 16 and 17 and the hard floor, through which the suction air flows at high speed and is therefore able to absorb the dirt from the hard floor.

Die Bürstenwalze 7 kann beim Saugen auf hartem Boden in ihre obere Stellung gebracht werden, so daß ihre Borsten nicht mehr den Boden berühren und damit den auf dem Boden lagernden Schmutz wegschleudern können. Wird die Bürstenwalze 7 von einer durch die Saugluft betätigten Turbine angetrieben, dann ist es vorteilhaft, daß sie in der oberen Stellung in ihrer Drehbewegung abgebremst wird, um ein mit einer entsprechenden Geräuschentwicklung verbundenes Ansteigen der Drehzahl der praktisch leerlaufenden Turbine zu vermeiden. Hierzu ist an der Decke der Walzenkammer 6 die Leiste 13 vorgesehen, an der die Bürstenwalze 7 mit ihren Borsten streift und dadurch wie beim Überstreifen des Teppichflores abgebremst wird. Durch das Anheben der Bürstenwalze 7 wird der Saugschlitz 12 freigegeben, so daß die Saugluft ungehindert durchströmen kann. Dadurch, daß die Bürstenwalze 7 in der oberen Stellung weiterdreht, wird eine Ablagerung von Schmutz an derselben verhindert.The brush roller 7 can be brought into its upper position when vacuuming on hard ground, so that its bristles no longer touch the ground and thus the ground can throw away stored dirt. If the brush roller 7 is driven by a turbine actuated by the suction air, then it is advantageous that its rotational movement is braked in the upper position in order to avoid an increase in the speed of the practically idling turbine associated with a corresponding noise development. For this purpose, the strip 13 is provided on the ceiling of the roller chamber 6, on which the brush roller 7 brushes with its bristles and is thereby braked as when the carpet pile is slipped on. By lifting the brush roller 7, the suction slot 12 is released so that the suction air can flow through unhindered. The fact that the brush roller 7 continues to rotate in the upper position prevents dirt from being deposited thereon.

Claims (5)

1) Mit Laufrädern versehenes Bürstsaugmundstück, das in einer im Mundstückgehäuse ausgebildeten Walzenkammer eine höhenverstellbar angeordnete drehbare Bürstenwalze aufweist, die mit ihren Borsten in Arbeitsstellung durch einen in der Bodenplatte der Walzenkammer vorgesehenen Saugschlitz hindurchgreift und durch eine im Mundstückgehäuse angeordnete Antriebseinheit angetrieben ist, dadurch gekennzeichnet,
daß in dem Bereich, in dem die Bodenplatte (11) nach oben in das Mundstückgehäuse (1) übergeht, bzw. mit diesem verbunden ist, auf jeder Seite des Saugschlitzes (12) eine sich über die volle Breite des Mundstückes erstreckende elastische Manschette (16 bzw. 17) angeordnet ist, wobei sich beide Manschetten (16 und 17) bis in die Auflageebene (19) oder knapp bis zur Auflageebene (19) der Laufräder (2 und 3) erstrecken, daß ferner die Bürstenwalze (7) in der Höhe soweit verstellbar ist, daß ihre Borsten nicht mehr die abzusaugende Fläche berühren und in dieser Stelle arretierbar ist.1) Brushed suction nozzle provided with impellers, which in a roller chamber formed in the mouthpiece housing has a height-adjustable rotatable brush roller which, with its bristles in the working position, reaches through a suction slot provided in the base plate of the roller chamber and is driven by a drive unit arranged in the mouthpiece housing, characterized in that
that in the area in which the base plate (11) merges into the mouthpiece housing (1) or is connected to it, on each side of the suction slot (12) an elastic sleeve (16.) which extends over the full width of the mouthpiece or 17) is arranged, with both sleeves (16 and 17) extending into the support plane (19) or just up to the support plane (19) of the impellers (2 and 3) that the brush roller (7) in height is adjustable so that its bristles no longer touch the surface to be suctioned off and can be locked in place. 2) Bürstsaugmundstück nach Anspruch 1,
dadurch gekennzeichnet,
daß unmittelbar nach der vorderen Manschette (16) ein durchgehender Frontsaugschlitz (18) oder mehrere Frontsaugöffnungen in der Bodenplatte (11) vorgesehen sind.2) brush suction mouthpiece according to claim 1,
characterized,
that a continuous front suction slot (18) or several front suction openings are provided in the base plate (11) immediately after the front sleeve (16). 3) Bürstsaugmundstück nach Anspruch 1 oder 2 mit einer durch Saugluft angetriebenen Turbine als Antriebseinheit, dadurch gekennzeichnet,daß eine die Rotation der Bürstenwalze (7) in ihrer obersten Stellung abbremsende Bremsvorrichtung vorgesehen ist.3) Brush suction mouthpiece according to claim 1 or 2 with a turbine driven by suction air as the drive unit, characterized in that a braking device is provided which brakes the rotation of the brush roller (7) in its uppermost position. 4) Bürstsaugmundstück nach Anspruch 3, dadurch gekennzeichnet, daß in der Walzenkammer (6) eine Leiste (13) angeordnet ist, an der die Bürstenwalze (7) in ihrer obersten Stellung mit ihren Borsten streift.4) Brush suction mouthpiece according to claim 3, characterized in that in the roller chamber (6) a strip (13) is arranged on which the brush roller (7) grazes in its uppermost position with its bristles. 5) Bürstsaugmundstück nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß zumindest die an der vorderen Seitenwand (14) der Walzenkammer (6) angeordnete Manschette (16) nur im Bereich ihres oberen Randes an der Seitenwand (14) befestigt und in dem Bereich von der Befestigungsstelle bis zum Ende der Seitenwand (14) lose an dieser anliegt.5) brush suction mouthpiece according to one or more of the preceding claims,
characterized,
that at least the sleeve (16) arranged on the front side wall (14) of the roller chamber (6) is fastened to the side wall (14) only in the area of its upper edge and loosely in the area from the fastening point to the end of the side wall (14) this is pending.
EP85115520A 1984-12-21 1985-12-06 Wheeled brush-suction nozzle Expired EP0186005B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8437619U 1984-12-21
DE8437619U DE8437619U1 (en) 1984-12-21 1984-12-21 Brush suction nozzle with impellers

Publications (2)

Publication Number Publication Date
EP0186005A1 true EP0186005A1 (en) 1986-07-02
EP0186005B1 EP0186005B1 (en) 1989-07-12

Family

ID=6774079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115520A Expired EP0186005B1 (en) 1984-12-21 1985-12-06 Wheeled brush-suction nozzle

Country Status (2)

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EP (1) EP0186005B1 (en)
DE (2) DE8437619U1 (en)

Cited By (13)

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EP0338513A2 (en) * 1988-04-20 1989-10-25 Hitachi, Ltd. Suction nozzle with rotary brush for vacuum cleaner
EP0881479A2 (en) * 1989-12-08 1998-12-02 Research Corporation Technologies, Inc. Hand held sampling probe
WO2001041617A1 (en) * 1999-12-10 2001-06-14 Vidoni, Mario Cleaning device with adjustable brush
WO2013027140A1 (en) * 2011-08-23 2013-02-28 Koninklijke Philips Electronics N.V. Cleaning device for cleaning a surface comprising a brush and a squeegee element
CN102949151A (en) * 2011-08-23 2013-03-06 皇家飞利浦电子股份有限公司 Cleaning device for cleaning a surface comprising a brush and a squeegee element
DE102014114809A1 (en) 2014-10-13 2016-04-14 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine with moistening device
DE102014114813A1 (en) 2014-10-13 2016-04-14 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine and method for operating a surface cleaning machine
DE102014114776A1 (en) 2014-10-13 2016-04-14 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine
WO2016058856A1 (en) 2014-10-13 2016-04-21 Alfred Kärcher Gmbh & Co. Kg Surface-cleaning machine
WO2017063663A1 (en) 2015-10-12 2017-04-20 Alfred Kärcher Gmbh & Co. Kg Surface-cleaning machine
US11058274B2 (en) 2016-03-09 2021-07-13 Alfred Kärcher SE & Co. KG Surface cleaning machine
US11291345B2 (en) 2018-08-27 2022-04-05 Techtronic Floor Care Technology Limited Floor cleaner
US11457790B2 (en) 2013-12-12 2022-10-04 Alfred Kärcher SE & Co. KG Floor cleaning machine

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DE4403971B4 (en) * 1993-06-25 2007-03-01 Vorwerk & Co. Interholding Gmbh Floor suction device, in particular intent or part of an electric vacuum cleaner
DE19800388C2 (en) * 1998-01-08 1999-12-02 Wessel Werk Gmbh Suction head for vacuum cleaner
EP2934270B1 (en) * 2012-12-20 2017-02-22 Koninklijke Philips N.V. Cleaning device for cleaning a surface
CN105266712B (en) * 2014-07-17 2019-01-22 江苏美的清洁电器股份有限公司 Dust catcher and its scrubbing brush

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US4164055A (en) * 1977-04-11 1979-08-14 Purex Corporation Cleaning and disinfecting hard surfaces
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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338513A2 (en) * 1988-04-20 1989-10-25 Hitachi, Ltd. Suction nozzle with rotary brush for vacuum cleaner
EP0338513A3 (en) * 1988-04-20 1991-07-31 Hitachi, Ltd. Suction nozzle with rotary brush for vacuum cleaner
EP0881479A2 (en) * 1989-12-08 1998-12-02 Research Corporation Technologies, Inc. Hand held sampling probe
EP0881479A3 (en) * 1989-12-08 1999-01-27 Research Corporation Technologies, Inc. Hand held sampling probe
WO2001041617A1 (en) * 1999-12-10 2001-06-14 Vidoni, Mario Cleaning device with adjustable brush
CN102949151A (en) * 2011-08-23 2013-03-06 皇家飞利浦电子股份有限公司 Cleaning device for cleaning a surface comprising a brush and a squeegee element
WO2013027140A1 (en) * 2011-08-23 2013-02-28 Koninklijke Philips Electronics N.V. Cleaning device for cleaning a surface comprising a brush and a squeegee element
JP2014524324A (en) * 2011-08-23 2014-09-22 コーニンクレッカ フィリップス エヌ ヴェ Cleaning device for cleaning the surface
US9173536B2 (en) 2011-08-23 2015-11-03 Koninklijke Philips N.V. Cleaning device for cleaning a surface comprising a brush and a squeegee element
CN102949151B (en) * 2011-08-23 2017-09-08 皇家飞利浦电子股份有限公司 Cleaning equipment for clean surface
RU2603600C2 (en) * 2011-08-23 2016-11-27 Конинклейке Филипс Н.В. Cleaning device for cleaning a surface comprising a brush and a squeegee element
RU2589565C2 (en) * 2011-08-23 2016-07-10 Конинклейке Филипс Н.В. Cleaning device for surface cleaning, comprising brush and scraper element
US11457790B2 (en) 2013-12-12 2022-10-04 Alfred Kärcher SE & Co. KG Floor cleaning machine
WO2016058879A1 (en) 2014-10-13 2016-04-21 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine and method for operating a surface cleaning machine
US10881258B2 (en) 2014-10-13 2021-01-05 Alfred Kärcher SE & Co. KG Surface cleaning machine and method for operating a surface cleaning machine
WO2016058856A1 (en) 2014-10-13 2016-04-21 Alfred Kärcher Gmbh & Co. Kg Surface-cleaning machine
DE102014114776A1 (en) 2014-10-13 2016-04-14 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine
DE102014114809A1 (en) 2014-10-13 2016-04-14 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine with moistening device
DE102014114813A1 (en) 2014-10-13 2016-04-14 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine and method for operating a surface cleaning machine
US10130230B2 (en) 2014-10-13 2018-11-20 Alfred Kärcher SE & Co. KG Surface cleaning machine having a wetting device
US10327619B2 (en) 2014-10-13 2019-06-25 Alfred Kärcher SE & Co. KG Surface cleaning machine
US10349797B2 (en) 2014-10-13 2019-07-16 Alfred Kärcher SE & Co. KG Surface-cleaning machine
US10362920B2 (en) 2014-10-13 2019-07-30 Alfred Kärcher Gmbh & Co. Kg Surface cleaning machine
WO2016058907A1 (en) 2014-10-13 2016-04-21 Alfred Kärcher Gmbh & Co. Kg Surface-cleaning machine
US10959590B2 (en) 2015-10-12 2021-03-30 Alfred Kärcher SE & Co. KG Surface cleaning machine
WO2017063663A1 (en) 2015-10-12 2017-04-20 Alfred Kärcher Gmbh & Co. Kg Surface-cleaning machine
US11058274B2 (en) 2016-03-09 2021-07-13 Alfred Kärcher SE & Co. KG Surface cleaning machine
US11291345B2 (en) 2018-08-27 2022-04-05 Techtronic Floor Care Technology Limited Floor cleaner
US11406240B1 (en) 2018-08-27 2022-08-09 Techtronic Floor Care Technology Limited Floor cleaner

Also Published As

Publication number Publication date
DE8437619U1 (en) 1986-04-17
DE3571382D1 (en) 1989-08-17
EP0186005B1 (en) 1989-07-12

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