EP1962660A1 - Floor nozzle for vacuum cleaners - Google Patents

Floor nozzle for vacuum cleaners

Info

Publication number
EP1962660A1
EP1962660A1 EP06806629A EP06806629A EP1962660A1 EP 1962660 A1 EP1962660 A1 EP 1962660A1 EP 06806629 A EP06806629 A EP 06806629A EP 06806629 A EP06806629 A EP 06806629A EP 1962660 A1 EP1962660 A1 EP 1962660A1
Authority
EP
European Patent Office
Prior art keywords
suction
floor nozzle
suction channel
channel
bottom plate
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
EP06806629A
Other languages
German (de)
French (fr)
Other versions
EP1962660B1 (en
EP1962660B8 (en
Inventor
Matthias KÖCHEL
Thomas Zerrer
Roger Knee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1962660A1 publication Critical patent/EP1962660A1/en
Publication of EP1962660B1 publication Critical patent/EP1962660B1/en
Application granted granted Critical
Publication of EP1962660B8 publication Critical patent/EP1962660B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
    • A47L9/0613—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads
    • 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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
    • A47L9/064—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor
    • A47L9/0653—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor with mechanical actuation, e.g. using a lever

Definitions

  • the invention relates to a floor nozzle for vacuum cleaners with a housing, on which a connecting piece is articulated, and having a bottom plate which is fixed to the housing and which has a connection via an air duct with the connecting piece in fluid communication suction port, wherein in the suction opening at least one open at the bottom open suction channel and in the main direction of movement of the floor nozzle in front of and behind the suction opening in each case a thread lifter is arranged.
  • Such a floor nozzle is known from the utility model DE 298 12 377 Ul.
  • the connecting piece is rotatably and pivotally held on the housing, and on the connecting piece a suction line of a vacuum cleaner can be connected.
  • the known floor nozzle has in the bottom plate on a single suction channel, which extends over the entire width of the bottom plate and opens in a central region in a suction opening, which forms a suction mouth.
  • a thread lifter is arranged in each case.
  • the front thread lifter is positioned at a short distance from a front edge of the bottom plate, and the front edge of the bottom plate is followed by a front bristle strip of the floor nozzle.
  • the thread lifter support the dirt pickup during a reciprocation of the floor nozzle along the floor surface to be cleaned.
  • edge areas of a floor area to be cleaned can not be cleaned reliably in all cases by means of the known floor nozzle.
  • Object of the present invention is to provide a Bodend ⁇ se of the type mentioned in such a way that it allows for improved cleaning of edge areas of a floor surface.
  • the bottom plate has a first and a second suction channel, each opening into the suction opening, wherein the first suction channel extends virtually over the entire width of the bottom plate and wherein the second suction channel a comprises in the main direction of movement of the floor nozzle in front of the front thread lifter arranged front channel section.
  • the floor nozzle according to the invention is characterized by an improved edge suction.
  • the front thread lifter is disposed between the front channel portion and the suction port, and is thereby caught by the suction flow in both its front and rear portions. It has been found that thereby the cleaning effect of the floor nozzle can be reinforced in particular in edge regions of the floor surface to be cleaned.
  • the second suction channel is U-shaped with two legs, which are connected to one another via the front channel section.
  • the front channel section thus forms a bridge, which separates the two vision kel of the U-shaped second suction channel interconnects.
  • the two legs are aligned at right angles to the front channel section. Between the two legs of the front thread lifter is arranged.
  • the two legs of the second suction channel each connect directly to one end of the thread lifter. It is particularly advantageous if the front thread lifter is positioned directly on the front edge of the suction opening.
  • the two legs of the second suction channel each open into the suction opening.
  • a particularly strong suction flow can be achieved within the second suction channel, and the front channel section can be sucked off both via a first and via a second leg of the second suction channel.
  • the front channel section has a greater depth than the two legs in their end region adjoining the suction opening.
  • the flow cross section of the second suction channel thus decreases in the direction of the suction opening.
  • the flow velocity of the suction flow increases in this region, so that dirt particles in the transition region between the front channel section and the suction opening are reliably entrained by the suction flow.
  • a particularly good edge extraction is achieved in a preferred embodiment of the floor nozzle according to the invention in that the front channel section extends along a front edge of the floor panel.
  • the front end region of the bottom plate adjacent to the front thread lifter can be reliably sucked off.
  • the first suction channel is curved arcuately or C-shaped.
  • the free end portions of the first suction channel are arranged in the main movement direction in front of a central region of the first suction channel, in which this opens into the suction opening.
  • the free end portions preferably extend to a front edge of the bottom plate.
  • the first suction channel has two front portions which run along a front edge of the bottom plate and which are each connected via an intermediate portion with a mouth portion adjoining the suction opening.
  • the first suction channel extends to the level of the front edge of the bottom plate.
  • it has two front sections, which are each in fluid communication with the suction opening via an intermediate section and a mouth section. The two front sections of the first suction channel, in combination with the front channel section of the second suction channel, allow a very good edge suction of a floor surface to be cleaned.
  • a support element contacting the bottom surface is arranged in a preferred embodiment.
  • the support element may be formed, for example, in the form of a bead, with which the floor nozzle can slide along the floor surface to be cleaned.
  • the bottom plate between the second suction channel and the front portions of the first suction channel each having an opening for receiving a support wheel or a support roller.
  • the support wheel or the support roller is mounted eccentrically and / or at least forms a cam through which the floor nozzle is raised and lowered periodically during the process along a floor surface.
  • the support wheel or support roller has an outer circumference deviating from a circular cylinder, with at least one radially outwardly projecting cam-shaped area and a peripheral area radially adjoining the latter. If the cam-shaped region strikes the bottom surface during the unwinding of the support wheel or the support roller, the floor nozzle is raised thereby, and the floor nozzle is lowered again as the support wheel or support roller rolls off, as soon as the remaining peripheral region of the support wheel or support roller covers the floor surface contacted. It has been shown that the cleaning effect of the floor nozzle can be enhanced by the periodic raising and lowering of the floor nozzle by means of the cam-shaped support wheel or the cam-shaped support roller.
  • the bottom plate relative to the main movement direction behind the rear thread lifter has a virtually over the entire width of the bottom plate extending opening for receiving a liftable and lowerable squeegee.
  • the squeegee may be formed, for example, as a bristle strip or as a rubber strip and may slide for cleaning a bottom surface along this.
  • the floor nozzle preferably has a foot switch on the top of its housing.
  • a liftable and lowerable squeegee strip is arranged in front of the first suction channel.
  • a liftable and lowerable squeegee strip is positioned within the second suction channel.
  • Figure 1 a perspective view of a floor nozzle according to the invention
  • FIG. 3 shows a bottom view of a second embodiment of a base plate used in the floor nozzle according to FIG.
  • a total occupied by the reference numeral 10 floor nozzle is shown schematically with a housing 11 to which via a hinge 12, a connecting piece 13 about a horizontal pivot axis 14 pivotally and about a perpendicular to the pivot axis 14 aligned rotation axis 15 is pivoted.
  • a connection 13 in a known manner the Suction line of a vacuum cleaner, so for example, a suction pipe or a suction hose to be connected.
  • FIG. 17 A first embodiment of a bottom plate as a whole designated by the reference numeral 17 is shown schematically in FIG.
  • the bottom plate 17 comprises a suction opening 18 which forms a suction mouth.
  • the suction opening 18 is connected via a known per se and therefore not shown in the drawing air duct of the floor nozzle 10 with the connection piece 13 in flow communication.
  • the air duct runs through the hinge 12 and is surrounded by the housing 11.
  • a first suction channel 21 and a second suction channel 22 open, which are formed in the bottom plate 17 and the bottom side open.
  • the suction opening 18 is rectangular in shape, and the first suction channel 21 connects with mouth portions 24, 25 to the parallel to a main movement direction 28 of the floor nozzle 10 extending shorter sides 30, 31 of the suction opening 18.
  • Each of the mouth sections 24, 25 is followed by a curved connecting section 33 or 34 which connects the mouth sections 24, 25 to a front section 36 or 37 of the first suction channel 21.
  • the front portions 36, 37 extend along a front edge 39 of the bottom plate 17 and are arranged in the main movement direction 28 in front of the suction opening 18, which is set back relative to the front edge 39.
  • the first suction channel 21 has a curved or C-shaped course, wherein it extends virtually over the entire width of the bottom plate 17 and the front edge 39 connects adjacent front regions of the bottom plate 17 with the suction opening 18.
  • On the longer sides 41, 42 of the rectangular suction opening 18 is followed in each case by a thread lifter 44 or 45.
  • the rearward in the main movement direction 28 thread lifter 45 has a greater width than the suction opening 18, whereas the width of the arranged in the main movement direction 28 in front of the suction opening 18 front thread lifter 44 is less than the width of the suction opening 18th
  • the second suction channel 22 is U-shaped and has two legs 47, 48, which are connected to each other via a front channel portion 50 and each open in the region of the longer side 41 in the suction opening 18. Between the two legs 47, 48 of the front thread lifter 44 is arranged.
  • the front channel section 50 also runs along the front edge 39 and is thus upstream of the front thread lifter 44.
  • the front thread lifter 44 is consequently surrounded in the circumferential direction by the U-shaped second suction channel 22 and the suction opening 18.
  • the bottom plate 17 has a bead-shaped first support element 52, and between the leg 48 of the second suction channel 22 and the front portion 37 of the first suction channel 21 comprises the bottom plate 17th a bead-shaped second support member 53.
  • the bottom plate 17 can slide along a bottom plate to be cleaned.
  • Another support element in the form of a support wheel is rotatably mounted in the region of the joint 12. Such support wheels are The person skilled in the art, it was therefore not shown in Figure 1 to achieve a better overview.
  • the bottom plate 17 has a transverse to the main movement direction 28, extending over virtually the entire width of the bottom plate 17 through opening 55 through which a known per se and therefore not shown in the drawing stripper Floor nozzle 10 can pass through.
  • the squeegee may be formed for example in the form of a rubber lip or a bristle strip.
  • a foot switch 57 is pivotably mounted on the housing 11, with the aid of which the wiper strip can be raised and lowered by the user.
  • a suction flow is formed in the area of the first suction channel 21 and in the area of the second suction channel 22 for receiving dirt particles.
  • the first suction channel 21 extends with its front portions 36 and 37 into the region of the front edge 39, and also the second suction channel 22 extends with its front channel portion 50 into the region of the front edge 39. This allows a particularly effective extraction of edge areas of a floor surface to be cleaned, in particular, the area in front of the front thread lifter 44 can be reliably sucked off.
  • FIG. 3 shows an alternative embodiment of a base plate, which is designated overall by the reference numeral 67. This is designed substantially identical to the above with reference to that in Figure 2 The same reference numerals are therefore used in Figure 3 for the same components as in Figure 2, and with respect to these components reference is made to avoid repetition to the above explanations.
  • the bottom plate 67 differs from the bottom plate 17 in that it has an opening 69 and 70 between the legs 47, 48 of the second suction channel 22 and the front portions 36 and 37 of the first suction channel 21, respectively.
  • the openings 69, 70 can each receive a rotatably mounted in the housing 11 jockey wheel, with the aid of which the floor nozzle 10 can be moved along the floor surface to be cleaned.
  • the support wheels may have a deviating from a cylinder outer circumferential surface by being cam-shaped. Alternatively, they can be mounted eccentrically. Such a design of the support wheels makes it possible to periodically raise and lower the floor nozzle 10 during the process along a floor surface to be cleaned. It has been shown that thereby the cleaning effect of the floor nozzle can be additionally reinforced.
  • the bottom plate 67 allows reliable Randabsaugung, since both the first suction channel 21 and the second suction channel 22, each of which opens directly into the suction port 18, extend up to the level of the leading edge 39 of the bottom plate 67, wherein in particular the front thread lifter 44th upstream region of the bottom plate 67 can be detected by a suction flow.

Abstract

The invention relates to a floor nozzle (10) for vacuum cleaners, comprising a housing (11) on which a connection piece (13) is held in an articulated manner, and comprising a base plate (17) which is fixed to the housing and which has a suction opening (18) which forms a flow connection with the connection piece via an air-guide channel, with at least one suction channel which is open at the floor end issuing into the suction opening and a thread-lifting means (44, 45) in each case being arranged upstream and downstream of the suction opening in the main movement direction of the floor nozzle. In order to develop the floor nozzle in such a way that it permits improved cleaning of edge regions of a floor area, the invention proposes that the base plate has a first suction channel (21) and a second suction channel (22) which each issue into the suction opening, with the first suction channel extending virtually over the entire width of the base plate, and with the second suction channel comprising a front channel section (50) which is arranged upstream of the front thread-lifting means (44) in the main movement direction of the floor nozzle.

Description

Bodendüse für Staubsauger Floor nozzle for vacuum cleaner
Die Erfindung betrifft eine Bodendüse für Staubsauger mit einem Gehäuse, an dem ein Anschlussstutzen gelenkig gehalten ist, und mit einer Bodenplatte, die am Gehäuse festgelegt ist und die eine über einen Luftführungskanal mit dem Anschlussstutzen in Strömungsverbindung stehende Saugöffnung aufweist, wobei in die Saugöffnung zumindest ein bodenseitig offener Saugkanal einmündet und in Hauptbewegungsrichtung der Bodendüse vor und hinter der Saugöffnung jeweils ein Fadenheber angeordnet ist.The invention relates to a floor nozzle for vacuum cleaners with a housing, on which a connecting piece is articulated, and having a bottom plate which is fixed to the housing and which has a connection via an air duct with the connecting piece in fluid communication suction port, wherein in the suction opening at least one open at the bottom open suction channel and in the main direction of movement of the floor nozzle in front of and behind the suction opening in each case a thread lifter is arranged.
Eine derartige Bodendüse ist aus der Gebrauchsmusterschrift DE 298 12 377 Ul bekannt. Bei dieser Bodendüse ist der Anschlussstutzen dreh- und schwenkbeweglich am Gehäuse gehalten, und an den Anschlussstutzen kann eine Saugleitung eines Staubsaugers angeschlossen werden. Die bekannte Bodendüse weist in der Bodenplatte einen einzigen Saugkanal auf, der sich über die gesamte Breite der Bodenplatte erstreckt und in einem mittigen Bereich in eine Saugöffnung einmündet, die einen Saugmund ausbildet. In Hauptbewe- gungsrichtung vor und hinter der Saugöffnung ist jeweils ein Fadenheber angeordnet. Der vordere Fadenheber ist in geringem Abstand zu einer Vorderkante der Bodenplatte positioniert, und an die Vorderkante der Bodenplatte schließt sich eine vordere Borstenleiste der Bodendüse an. Die Fadenheber unterstützen die Schmutzaufnahme bei einer Hin- und Herbewegung der Bodendüse entlang der zu reinigenden Bodenfläche. Es hat sich allerdings gezeigt, dass mittels der bekannten Bodendüse Randbereiche einer zu reinigenden Bodenfläche nicht in allen Fällen zuverlässig gereinigt werden können. Aufgabe der vorliegenden Erfindung ist es, eine Bodendϋse der eingangs genannten Art derart weiterzubilden, dass sie eine verbesserte Reinigung von Randbereichen einer Bodenfläche ermöglicht.Such a floor nozzle is known from the utility model DE 298 12 377 Ul. In this floor nozzle, the connecting piece is rotatably and pivotally held on the housing, and on the connecting piece a suction line of a vacuum cleaner can be connected. The known floor nozzle has in the bottom plate on a single suction channel, which extends over the entire width of the bottom plate and opens in a central region in a suction opening, which forms a suction mouth. In the main direction of movement in front of and behind the suction opening, a thread lifter is arranged in each case. The front thread lifter is positioned at a short distance from a front edge of the bottom plate, and the front edge of the bottom plate is followed by a front bristle strip of the floor nozzle. The thread lifter support the dirt pickup during a reciprocation of the floor nozzle along the floor surface to be cleaned. However, it has been shown that edge areas of a floor area to be cleaned can not be cleaned reliably in all cases by means of the known floor nozzle. Object of the present invention is to provide a Bodendϋse of the type mentioned in such a way that it allows for improved cleaning of edge areas of a floor surface.
Diese Aufgabe wird bei einer Bodendüse der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, dass die Bodenplatte einen ersten und einen zweiten Saugkanal aufweist, die jeweils in die Saugöffnung einmünden, wobei sich der erste Saugkanal praktisch über die gesamte Breite der Bodenplatte erstreckt und wobei der zweite Saugkanal einen in Hauptbewegungsrichtung der Bodendüse vor dem vorderen Fadenheber angeordneten vorderen Kanalabschnitt umfasst.This object is achieved in a floor nozzle of the generic type according to the invention that the bottom plate has a first and a second suction channel, each opening into the suction opening, wherein the first suction channel extends virtually over the entire width of the bottom plate and wherein the second suction channel a comprises in the main direction of movement of the floor nozzle in front of the front thread lifter arranged front channel section.
Durch den Einsatz des zweiten Saugkanals, dessen vorderer Kanalabschnitt vor dem vorderen Fadenheber angeordnet ist, kann bei einer Bewegung der Bodendüse in Hauptbewegungsrichtung ein dem vorderen Fadenheber vorgelagerter Randbereich einer zu reinigenden Bodenfläche unmittelbar über den zweiten Saugkanal abgesaugt werden. Die erfindungsgemäße Bodendüse zeichnet sich dadurch durch eine verbesserte Randabsaugung aus. Der vordere Fadenheber ist zwischen dem vorderen Kanalabschnitt und der Saugöffnung angeordnet und wird dadurch sowohl in seinem vorderseitigen als auch in seinem rückwärtigen Bereich von der Saugströmung erfasst. Es hat sich gezeigt, dass dadurch die Reinigungswirkung der Bodendüse insbesondere in Randbereichen der zu reinigenden Bodenfläche verstärkt werden kann.By using the second suction channel whose front channel section is arranged in front of the front thread take-up, a front area of a floor area to be cleaned can be sucked off directly via the second suction channel when the floor nozzle moves in the main movement direction. The floor nozzle according to the invention is characterized by an improved edge suction. The front thread lifter is disposed between the front channel portion and the suction port, and is thereby caught by the suction flow in both its front and rear portions. It has been found that thereby the cleaning effect of the floor nozzle can be reinforced in particular in edge regions of the floor surface to be cleaned.
Günstig ist es, wenn der zweite Saugkanal U-förmig ausgestaltet ist mit zwei Schenkeln, die über den vorderen Kanalabschnitt miteinander verbunden sind. Der vordere Kanalabschnitt bildet somit einen Steg aus, der die beiden Sehen- kel des U-förmigen zweiten Saugkanals miteinander verbindet. Vorzugsweise sind die beiden Schenkel rechtwinklig zum vorderen Kanalabschnitt ausgerichtet. Zwischen den beiden Schenkeln ist der vordere Fadenheber angeordnet.It is advantageous if the second suction channel is U-shaped with two legs, which are connected to one another via the front channel section. The front channel section thus forms a bridge, which separates the two vision kel of the U-shaped second suction channel interconnects. Preferably, the two legs are aligned at right angles to the front channel section. Between the two legs of the front thread lifter is arranged.
Von besonderem Vorteil ist es, wenn sich die beiden Schenkel des zweiten Saugkanals jeweils unmittelbar an ein Ende des Fadenhebers anschließen. Hierbei ist es besonders günstig, wenn der vordere Fadenheber unmittelbar an der Vorderkante der Saugöffnung positioniert ist.It is particularly advantageous if the two legs of the second suction channel each connect directly to one end of the thread lifter. It is particularly advantageous if the front thread lifter is positioned directly on the front edge of the suction opening.
Vorzugsweise münden die beiden Schenkel des zweiten Saugkanals jeweils in die Saugöffnung ein. Dadurch kann innerhalb des zweiten Saugkanals eine besonders starke Saugströmung erzielt werden, und der vordere Kanalabschnitt kann sowohl über einen ersten als auch über einen zweiten Schenkel des zweiten Saugkanals abgesaugt werden.Preferably, the two legs of the second suction channel each open into the suction opening. As a result, a particularly strong suction flow can be achieved within the second suction channel, and the front channel section can be sucked off both via a first and via a second leg of the second suction channel.
Als vorteilhaft hat es sich erwiesen, wenn der vordere Kanalabschnitt eine größere Tiefe aufweist als die beiden Schenkel in ihrem an die Saugöffnung angrenzenden Endbereich. Der Strömungsquerschnitt des zweiten Saugkanals vermindert sich somit in Richtung der Saugöffnung. Dadurch erhöht sich in diesem Bereich die Strömungsgeschwindigkeit der Saugströmung, so dass Schmutzpartikel im Übergangsbereich zwischen dem vorderen Kanalabschnitt und der Saugöffnung zuverlässig von der Saugströmung mitgerissen werden.It has proved to be advantageous if the front channel section has a greater depth than the two legs in their end region adjoining the suction opening. The flow cross section of the second suction channel thus decreases in the direction of the suction opening. As a result, the flow velocity of the suction flow increases in this region, so that dirt particles in the transition region between the front channel section and the suction opening are reliably entrained by the suction flow.
Eine besonders gute Randabsaugung wird bei einer bevorzugten Ausführungsform der erfindungsgemäßen Bodendüse dadurch erzielt, dass sich der vordere Kanalabschnitt entlang einer Vorderkante der Bodenplatte erstreckt. Damit kann insbesondere der dem vorderen Fadenheber benachbarte vordere Endbereich der Bodenplatte zuverlässig abgesaugt werden.A particularly good edge extraction is achieved in a preferred embodiment of the floor nozzle according to the invention in that the front channel section extends along a front edge of the floor panel. Thus, in particular, the front end region of the bottom plate adjacent to the front thread lifter can be reliably sucked off.
Zur Ausgestaltung des ersten Saugkanals wurden bisher keine näheren Angabe gemacht. Vorzugsweise ist der erste Saugkanal bogen- oder C-förmig gekrümmt. Bevorzugt sind die freien Endbereiche des ersten Saugkanals in Hauptbewegungsrichtung vor einem mittigen Bereich des ersten Saugkanals angeordnet, in dem dieser in die Saugöffnung einmündet. Die freien Endbereiche erstrecken sich vorzugsweise bis zu einer Vorderkante der Bodenplatte.For the design of the first suction channel so far no details have been made. Preferably, the first suction channel is curved arcuately or C-shaped. Preferably, the free end portions of the first suction channel are arranged in the main movement direction in front of a central region of the first suction channel, in which this opens into the suction opening. The free end portions preferably extend to a front edge of the bottom plate.
Bei einer bevorzugten Ausführungsform ist vorgesehen, dass der erste Saugkanal zwei Frontabschnitte aufweist, die entlang einer Vorderkante der Bodenplatte verlaufen und die jeweils über einen Zwischenabschnitt mit einem an die Saugöffnung anschließenden Mündungsabschnitt verbunden sind. Bei einer derartigen Ausgestaltung erstreckt sich auch der erste Saugkanal bis in Höhe der Vorderkante der Bodenplatte. Er weist hierzu zwei Frontabschnitte auf, die jeweils über einen Zwischenabschnitt und einen Mündungsabschnitt mit der Saugöffnung in Strömungsverbindung stehen. Die beiden Frontabschnitte des ersten Saugkanals ermöglichen in Kombination mit dem vorderen Kanalabschnitt des zweiten Saugkanals eine sehr gute Randabsaugung einer zu reinigenden Bodenfläche.In a preferred embodiment, it is provided that the first suction channel has two front portions which run along a front edge of the bottom plate and which are each connected via an intermediate portion with a mouth portion adjoining the suction opening. In such an embodiment, the first suction channel extends to the level of the front edge of the bottom plate. For this purpose, it has two front sections, which are each in fluid communication with the suction opening via an intermediate section and a mouth section. The two front sections of the first suction channel, in combination with the front channel section of the second suction channel, allow a very good edge suction of a floor surface to be cleaned.
Zwischen dem zweiten Saugkanal und den Frontabschnitten des ersten Saugkanals ist bei einer bevorzugten Ausführungsform jeweils ein die Bodenfläche kontaktierendes Stützelement angeordnet. Das Stützelement kann beispielsweise in Form eines Wulstes ausgebildet sein, mit dem die Bodendüse an der zu reinigenden Bodenfläche entlang gleiten kann. Es kann auch vorgesehen sein, dass die Bodenplatte zwischen dem zweiten Saugkanal und den Frontabschnitten des ersten Saugkanals jeweils eine Öffnung zur Aufnahme eines Stützrades oder einer Stützrolle aufweist. Hierbei kann vorgesehen sein, dass das Stützrad bzw. die Stützrolle exzentrisch gelagert ist und/oder zumindest eine Nocke ausbildet, durch die die Bodendüse beim Verfahren entlang einer Bodenfläche periodisch angehoben und abgesenkt wird. Das Stützrad bzw. die Stützrolle weist bei einer derartigen Ausgestaltung einen von einem Kreiszylinder abweichenden Außenumfang auf mit mindestens einem radial nach außen stehenden nockenförmigen Bereich und einem sich an diesen anschließenden, radial zurückgesetzten Umfangsbereich. Trifft der nockenförmige Bereich beim Abrollen des Stützrades oder der Stützrolle auf die Bodenfläche, so wird dadurch die Bodendüse angehoben, und beim weiteren Abrollen des Stützrades bzw. der Stützrolle wird die Bodendüse wieder abgesenkt, sobald der restliche Umfangsbereich des Stützrades bzw. der Stützrolle die Bodenfläche kontaktiert. Es hat sich gezeigt, dass durch das periodische Anheben und Absenken der Bodendüse mittels des nockenförmigen Stützrades bzw. der nockenförmigen Stützrolle die Reinigungswirkung der Bodendüse verstärkt werden kann.Between the second suction channel and the front sections of the first suction channel, a support element contacting the bottom surface is arranged in a preferred embodiment. The support element may be formed, for example, in the form of a bead, with which the floor nozzle can slide along the floor surface to be cleaned. It can also be provided that the bottom plate between the second suction channel and the front portions of the first suction channel each having an opening for receiving a support wheel or a support roller. It can be provided that the support wheel or the support roller is mounted eccentrically and / or at least forms a cam through which the floor nozzle is raised and lowered periodically during the process along a floor surface. In such an embodiment, the support wheel or support roller has an outer circumference deviating from a circular cylinder, with at least one radially outwardly projecting cam-shaped area and a peripheral area radially adjoining the latter. If the cam-shaped region strikes the bottom surface during the unwinding of the support wheel or the support roller, the floor nozzle is raised thereby, and the floor nozzle is lowered again as the support wheel or support roller rolls off, as soon as the remaining peripheral region of the support wheel or support roller covers the floor surface contacted. It has been shown that the cleaning effect of the floor nozzle can be enhanced by the periodic raising and lowering of the floor nozzle by means of the cam-shaped support wheel or the cam-shaped support roller.
Eine intensive Reinigungswirkung wird bei einer vorteilhaften Ausführungsform der Bodendüse dadurch erzielt, dass die Bodenplatte bezogen auf die Hauptbewegungsrichtung hinter dem hinteren Fadenheber eine sich praktisch über die gesamte Breite der Bodenplatte erstreckende Öffnung zur Aufnahme einer heb- und senkbaren Abstreifleiste aufweist. Die Abstreifleiste kann beispielsweise als Borstenleiste oder auch als Gummileiste ausgebildet sein und kann zur Reinigung einer Bodenfläche an dieser entlang gleiten. Zum Anheben bzw. Absenken der Abstreifleiste weist die Bodendüse bevorzugt auf der Oberseite ihres Gehäuses einen Fußschalter auf.An intensive cleaning effect is achieved in an advantageous embodiment of the floor nozzle, characterized in that the bottom plate relative to the main movement direction behind the rear thread lifter has a virtually over the entire width of the bottom plate extending opening for receiving a liftable and lowerable squeegee. The squeegee may be formed, for example, as a bristle strip or as a rubber strip and may slide for cleaning a bottom surface along this. For lifting or Lowering the squeegee, the floor nozzle preferably has a foot switch on the top of its housing.
Alternativ oder ergänzend kann vorgesehen sein, dass vor dem ersten Saugkanal eine heb- und senkbare Abstreifleiste angeordnet ist.Alternatively or additionally, it can be provided that a liftable and lowerable squeegee strip is arranged in front of the first suction channel.
Es kann auch vorgesehen sein, dass innerhalb des zweiten Saugkanals eine heb- und senkbare Abstreifleiste positioniert ist.It can also be provided that a liftable and lowerable squeegee strip is positioned within the second suction channel.
Die nachfolgende Beschreibung zweier bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:The following description of two preferred embodiments of the invention is used in conjunction with the drawings for further explanation. Show it:
Figur 1 : eine perspektivische Darstellung einer erfindungsgemäßen Bodendüse;Figure 1: a perspective view of a floor nozzle according to the invention;
Figur 2: eine Unteransicht einer ersten Ausführungsform eine bei der Bodendüse gemäß Figur 1 zum Einsatz kommenden Bodenplatte undFIG. 2 shows a bottom view of a first embodiment of a floor plate used in the floor nozzle according to FIG. 1 and FIG
Figur 3: eine Unteransicht einer zweiten Ausführungsform einer bei der Bodendüse gemäße Figur 1 zum Einsatz kommenden Bodenplatte.FIG. 3 shows a bottom view of a second embodiment of a base plate used in the floor nozzle according to FIG.
In Figur 1 ist schematisch eine insgesamt mit dem Bezugszeichen 10 belegte Bodendüse dargestellt mit einem Gehäuse 11, an das über ein Gelenk 12 ein Anschlussstutzen 13 um eine horizontale Schwenkachse 14 verschwenkbar und um eine senkrecht zur Schwenkachse 14 ausgerichtete Drehachse 15 drehbar angelenkt ist. An den Anschlusssutzen 13 kann in bekannter Weise die Saugleitung eines Staubsaugers, also beispielsweise ein Saugrohr oder ein Saugschlauch, angeschlossen werden.In Figure 1, a total occupied by the reference numeral 10 floor nozzle is shown schematically with a housing 11 to which via a hinge 12, a connecting piece 13 about a horizontal pivot axis 14 pivotally and about a perpendicular to the pivot axis 14 aligned rotation axis 15 is pivoted. At the connection 13, in a known manner the Suction line of a vacuum cleaner, so for example, a suction pipe or a suction hose to be connected.
Unterseitig ist am Gehäuse 11 eine Bodenplatte festgelegt. Eine erste Ausführungsform einer insgesamt mit dem Bezugszeichen 17 belegten Bodenplatte ist in Figur 2 schematisch dargestellt. Die Bodenplatte 17 umfasst eine Saugöffnung 18, die einen Saugmund ausbildet. Die Saugöffnung 18 steht über einen an sich bekannten und deshalb in der Zeichnung nicht dargestellten Luftführungskanal der Bodendüse 10 mit dem Anschlusssutzen 13 in Strömungsverbindung. Der Luftführungskanal verläuft durch das Gelenk 12 hindurch und ist vom Gehäuse 11 umgeben. In die Saugöffnung 18 münden ein erster Saugkanal 21 und ein zweiter Saugkanal 22 ein, die in die Bodenplatte 17 eingeformt und bodenseitig offen sind.On the underside of the housing 11, a bottom plate is fixed. A first embodiment of a bottom plate as a whole designated by the reference numeral 17 is shown schematically in FIG. The bottom plate 17 comprises a suction opening 18 which forms a suction mouth. The suction opening 18 is connected via a known per se and therefore not shown in the drawing air duct of the floor nozzle 10 with the connection piece 13 in flow communication. The air duct runs through the hinge 12 and is surrounded by the housing 11. In the suction opening 18, a first suction channel 21 and a second suction channel 22 open, which are formed in the bottom plate 17 and the bottom side open.
Die Saugöffnung 18 ist rechteckförmig ausgebildet, und der erste Saugkanal 21 schließt sich mit Mündungsabschnitten 24, 25 an die parallel zu einer Hauptbewegungsrichtung 28 der Bodendüse 10 verlaufenden kürzeren Seiten 30, 31 der Saugöffnung 18 an. An die Mündungsabschnitte 24, 25 schließt sich jeweils ein gekrümmter Verbindungsabschnitt 33 bzw. 34 an, der die Mündungsabschnitte 24, 25 jeweils mit einem Frontabschnitt 36 bzw. 37 des ersten Saugkanals 21 verbindet. Die Frontabschnitte 36, 37 verlaufen entlang einer Vorderkante 39 der Bodenplatte 17 und sind in Hauptbewegungsrichtung 28 vor der Saugöffnung 18 angeordnet, die gegenüber der Vorderkante 39 zurückgesetzt ist. Insgesamt weist der erste Saugkanal 21 einen bogen- oder C-förmigen Verlauf auf, wobei er sich praktisch über die gesamte Breite der Bodenplatte 17 erstreckt und der Vorderkante 39 benachbarte Frontbereiche der Bodenplatte 17 mit der Saugöffnung 18 verbindet. An die längeren Seiten 41, 42 der rechteckförmigen Saugöffnung 18 schließt sich jeweils ein Fadenheber 44 bzw. 45 an. Der in Hauptbewegungsrichtung 28 hintere Fadenheber 45 weist eine größere Breite auf als die Saugöffnung 18, wohingegen die Breite des in Hauptbewegungsrichtung 28 vor der Saugöffnung 18 angeordneten vorderen Fadenheber 44 geringer ist als die Breite der Saugöffnung 18.The suction opening 18 is rectangular in shape, and the first suction channel 21 connects with mouth portions 24, 25 to the parallel to a main movement direction 28 of the floor nozzle 10 extending shorter sides 30, 31 of the suction opening 18. Each of the mouth sections 24, 25 is followed by a curved connecting section 33 or 34 which connects the mouth sections 24, 25 to a front section 36 or 37 of the first suction channel 21. The front portions 36, 37 extend along a front edge 39 of the bottom plate 17 and are arranged in the main movement direction 28 in front of the suction opening 18, which is set back relative to the front edge 39. Overall, the first suction channel 21 has a curved or C-shaped course, wherein it extends virtually over the entire width of the bottom plate 17 and the front edge 39 connects adjacent front regions of the bottom plate 17 with the suction opening 18. On the longer sides 41, 42 of the rectangular suction opening 18 is followed in each case by a thread lifter 44 or 45. The rearward in the main movement direction 28 thread lifter 45 has a greater width than the suction opening 18, whereas the width of the arranged in the main movement direction 28 in front of the suction opening 18 front thread lifter 44 is less than the width of the suction opening 18th
Der zweite Saugkanal 22 ist U-förmig ausgebildet und weist zwei Schenkel 47, 48 auf, die über einen vorderen Kanalabschnitt 50 miteinander verbunden sind und die jeweils im Bereich der längeren Seite 41 in die Saugöffnung 18 einmünden. Zwischen den beiden Schenkeln 47, 48 ist der vordere Fadenheber 44 angeordnet.The second suction channel 22 is U-shaped and has two legs 47, 48, which are connected to each other via a front channel portion 50 and each open in the region of the longer side 41 in the suction opening 18. Between the two legs 47, 48 of the front thread lifter 44 is arranged.
Der vordere Kanalabschnitt 50 verläuft ebenfalls entlang der Vorderkante 39 und ist somit dem vorderen Fadenheber 44 vorgelagert. Der vordere Fadenheber 44 ist demzufolge in Umfangsrichtung vom U-förmigen zweiten Saugkanal 22 und der Saugöffnung 18 umgeben.The front channel section 50 also runs along the front edge 39 and is thus upstream of the front thread lifter 44. The front thread lifter 44 is consequently surrounded in the circumferential direction by the U-shaped second suction channel 22 and the suction opening 18.
Zwischen dem Schenkel 47 des zweiten Saugkanals 22 und dem Frontabschnitt 36 des ersten Saugkanals 21 weist die Bodenplatte 17 ein wulstförmi- ges erstes Stützelement 52 auf, und zwischen dem Schenkel 48 des zweiten Saugkanals 22 und dem Frontabschnitt 37 des ersten Saugkanals 21 umfasst die Bodenplatte 17 ein wulstförmiges zweites Stützelement 53. Mittels der beiden Stützelemente 52, 53 kann die Bodenplatte 17 an einer zu reinigenden Bodenplatte entlang gleiten. Ein weiteres Stützelement in Form eines Stützrades ist im Bereich des Gelenkes 12 drehbar gelagert. Derartige Stützräder sind dem Fachmann bekannt, es wurde deshalb zur Erzielung einer besseren Übersicht in Figur 1 nicht dargestellt.Between the leg 47 of the second suction channel 22 and the front portion 36 of the first suction channel 21, the bottom plate 17 has a bead-shaped first support element 52, and between the leg 48 of the second suction channel 22 and the front portion 37 of the first suction channel 21 comprises the bottom plate 17th a bead-shaped second support member 53. By means of the two support members 52, 53, the bottom plate 17 can slide along a bottom plate to be cleaned. Another support element in the form of a support wheel is rotatably mounted in the region of the joint 12. Such support wheels are The person skilled in the art, it was therefore not shown in Figure 1 to achieve a better overview.
Bezogen auf die Hauptbewegungsrichtung 28 hinter dem hinteren Fadenheber 45 weist die Bodenplatte 17 eine quer zur Hauptbewegungsrichtung 28 verlaufende, sich praktisch über die gesamte Breite der Bodenplatte 17 erstreckende Durchgangsöffnung 55 auf, durch die eine an sich bekannte und deshalb in der Zeichnung nicht dargestellte Abstreifleiste der Bodendüse 10 hindurch treten kann. Die Abstreifleiste kann beispielsweise in Form einer Gummilippe oder einer Borstenleiste ausgebildet sein. Oberseitig ist am Gehäuse 11 ein Fußschalter 57 verschwenkbar gelagert, mit dessen Hilfe die Abstreifleiste vom Benutzer angehoben und abgesenkt werden kann.Relative to the main movement direction 28 behind the rear thread lifter 45, the bottom plate 17 has a transverse to the main movement direction 28, extending over virtually the entire width of the bottom plate 17 through opening 55 through which a known per se and therefore not shown in the drawing stripper Floor nozzle 10 can pass through. The squeegee may be formed for example in the form of a rubber lip or a bristle strip. On the upper side, a foot switch 57 is pivotably mounted on the housing 11, with the aid of which the wiper strip can be raised and lowered by the user.
Während des Betriebes der Bodendüse 10 bildet sich im Bereich des ersten Saugkanals 21 und im Bereich des zweiten Saugkanals 22 jeweils eine Saugströmung auf zur Aufnahme von Schmutzpartikeln. Ausgehend von den kürzeren Seiten 30, 31 der Saugöffnung 18 erstreckt sich der erste Saugkanal 21 mit seinen Frontabschnitten 36 und 37 bis in den Bereich der Vorderkante 39, und auch der zweite Saugkanal 22 erstreckt sich mit seinem vorderen Kanalabschnitt 50 bis in den Bereich der Vorderkante 39. Dies ermöglicht eine besonders effektive Absaugung von Randbereichen einer zu reinigenden Bodenfläche, insbesondere kann der Bereich vor dem vorderen Fadenheber 44 zuverlässig abgesaugt werden.During operation of the floor nozzle 10, in each case a suction flow is formed in the area of the first suction channel 21 and in the area of the second suction channel 22 for receiving dirt particles. Starting from the shorter sides 30, 31 of the suction opening 18, the first suction channel 21 extends with its front portions 36 and 37 into the region of the front edge 39, and also the second suction channel 22 extends with its front channel portion 50 into the region of the front edge 39. This allows a particularly effective extraction of edge areas of a floor surface to be cleaned, in particular, the area in front of the front thread lifter 44 can be reliably sucked off.
In Figur 3 ist eine alternative Ausführungsform einer insgesamt mit dem Bezugszeichen 67 belegten Bodenplatte dargestellt. Diese ist weitgehend identisch ausgestaltet wie die voranstehend unter Bezugnahme auf die in Figur 2 erläuterte Bodenplatte 17. Für gleiche Bauteile werden daher in Figur 3 dieselben Bezugszeichen verwendet wie in Figur 2, und bezüglich dieser Bauteile wird zur Vermeidung von Wiederholungen auf die voranstehenden Erläuterungen Bezug genommen.FIG. 3 shows an alternative embodiment of a base plate, which is designated overall by the reference numeral 67. This is designed substantially identical to the above with reference to that in Figure 2 The same reference numerals are therefore used in Figure 3 for the same components as in Figure 2, and with respect to these components reference is made to avoid repetition to the above explanations.
Die Bodenplatte 67 unterscheidet sich von der Bodenplatte 17 dadurch, dass sie zwischen den Schenkeln 47, 48 des zweiten Saugkanals 22 und den Frontabschnitten 36 bzw. 37 des ersten Saugkanals 21 jeweils eine Öffnung 69 bzw. 70 aufweist. Die Öffnungen 69, 70 können jeweils ein drehbar im Gehäuse 11 gelagertes Stützrad aufnehmen, mit dessen Hilfe die Bodendüse 10 an der zu reinigenden Bodenfläche entlang verfahren werden kann. Hierbei können die Stützräder eine von einem Zylindermantel abweichende Außenumfangsfläche aufweisen, indem sie nockenförmig ausgebildet sind. Alternativ können sie exzentrisch gelagert sein. Eine derartige Ausgestaltung der Stützräder ermöglicht es, die Bodendüse 10 beim Verfahren entlang einer zu reinigenden Bodenfläche periodisch anzuheben und abzusenken. Es hat sich gezeigt, dass dadurch die Reinigungswirkung der Bodendüse zusätzlich verstärkt werden kann.The bottom plate 67 differs from the bottom plate 17 in that it has an opening 69 and 70 between the legs 47, 48 of the second suction channel 22 and the front portions 36 and 37 of the first suction channel 21, respectively. The openings 69, 70 can each receive a rotatably mounted in the housing 11 jockey wheel, with the aid of which the floor nozzle 10 can be moved along the floor surface to be cleaned. Here, the support wheels may have a deviating from a cylinder outer circumferential surface by being cam-shaped. Alternatively, they can be mounted eccentrically. Such a design of the support wheels makes it possible to periodically raise and lower the floor nozzle 10 during the process along a floor surface to be cleaned. It has been shown that thereby the cleaning effect of the floor nozzle can be additionally reinforced.
Auch die Bodenplatte 67 ermöglicht eine zuverlässige Randabsaugung, da sich sowohl der erste Saugkanal 21 als auch der zweite Saugkanal 22, die jeweils unmittelbar in die Saugöffnung 18 einmünden, bis in Höhe der Vorderkante 39 der Bodenplatte 67 erstrecken, wobei insbesondere der dem vorderen Fadenheber 44 vorgelagerte Bereich der Bodenplatte 67 von einer Saugströmung erfasst werden kann. Also, the bottom plate 67 allows reliable Randabsaugung, since both the first suction channel 21 and the second suction channel 22, each of which opens directly into the suction port 18, extend up to the level of the leading edge 39 of the bottom plate 67, wherein in particular the front thread lifter 44th upstream region of the bottom plate 67 can be detected by a suction flow.

Claims

PATENTANSPRÜCHE
1. Bodendüse für Staubsauger mit einem Gehäuse, an dem ein Anschlussstutzen gelenkig gehalten ist, und mit einer Bodenplatte, die am Gehäuse festgelegt ist und die eine über einen Luftführungskanal mit dem Anschlussstutzen in Strömungsverbindung stehende Saugöffnung aufweist, wobei in die Saugöffnung zumindest ein bodenseitig offener Saugkanal einmündet und in Hauptbewegungsrichtung der Bodendüse vor und hinter der Saugöffnung jeweils ein Fadenheber angeordnet ist, dadurch gekennzeichnet, dass die Bodenplatte (17; 67) einen ersten und einen zweiten Saugkanal (21, 22) aufweist, die jeweils in die Saugöffnung (18) einmünden, wobei sich der erste Saugkanal (21) praktisch über die gesamte Breite der Bodenplatte (17; 67) erstreckt und wobei der zweite Saugkanal (22) einen in Hauptbewegungsrichtung (28) der Bodendüse (10) vor dem vorderen Fadenheber (44) angeordneten vorderen Kanalabschnitt (50) umfasst.A floor nozzle for vacuum cleaners with a housing, on which a connecting piece is articulated, and with a bottom plate, which is fixed to the housing and which has a via an air duct with the connecting piece in fluid communication suction port, wherein in the suction opening at least one bottom open Suction channel opens and in the main direction of movement of the floor nozzle in front of and behind the suction opening in each case a thread lifter is arranged, characterized in that the bottom plate (17, 67) has a first and a second suction channel (21, 22), each in the suction opening (18) open, wherein the first suction channel (21) extends over virtually the entire width of the bottom plate (17; 67) and wherein the second suction channel (22) arranged in a main movement direction (28) of the floor nozzle (10) in front of the front thread lifter (44) front channel section (50).
2. Bodendüse nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Saugkanal (22) U-förmig ausgestaltet ist mit zwei Schenkeln (47, 48), die über den vorderen Kanalabschnitt (50) miteinander verbunden sind.2. floor nozzle according to claim 1, characterized in that the second suction channel (22) is U-shaped with two legs (47, 48) which are connected to each other via the front channel portion (50).
3. Bodendüse nach Anspruch 2, dadurch gekennzeichnet, dass sich die beiden Schenkel (47; 48) des zweiten Saugkanals (22) jeweils unmittelbar an ein Ende des vorderern Fadenhebers (44) anschließen. 3. floor nozzle according to claim 2, characterized in that connect the two legs (47; 48) of the second suction channel (22) each directly to one end of the front thread lifter (44).
4. Bodendüse nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die beiden Schenkel (47, 48) jeweils in die Saugöffnung (18) einmünden.4. floor nozzle according to claim 2 or 3, characterized in that the two legs (47, 48) each open into the suction opening (18).
5. Bodendüse nach Anspruch 4, dadurch gekennzeichnet, dass der vordere Kanalabschnitt (50) eine größere Tiefe aufweist als die beiden Schenkel (47, 48) in ihrem an die Saugöffnung (18) angrenzenden Endbereich.5. Floor nozzle according to claim 4, characterized in that the front channel section (50) has a greater depth than the two legs (47, 48) in their to the suction opening (18) adjacent end portion.
6. Bodendüse nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass sich der vordere Kanalabschnitt (50) entlang einer Vorderkante (39) der Bodenplatte (17; 67) erstreckt.6. Floor nozzle according to one of the preceding claims, characterized in that the front channel section (50) extends along a front edge (39) of the bottom plate (17, 67).
7. Bodendüse nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der erste Saugkanal (21) bogenförmig gekrümmt ist.7. Floor nozzle according to one of the preceding claims, characterized in that the first suction channel (21) is arcuately curved.
8. Bodendüse nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der erste Saugkanal (21) zwei Frontabschnitte (36, 37) aufweist, die entlang einer Vorderkante (39) der Bodenplatte (17; 67) verlaufen und die jeweils über einen Zwischenabschnitt (33, 34) mit einem an die Saugöffnung (18) anschließenden Mündungsabschnitt (24, 25) verbunden sind.8. Floor nozzle according to one of the preceding claims, characterized in that the first suction channel (21) has two front portions (36, 37) which run along a front edge (39) of the bottom plate (17, 67) and each via an intermediate portion ( 33, 34) are connected to a mouth portion (24, 25) adjoining the suction opening (18).
9. Bodendüse nach Anspruch 8, dadurch gekennzeichnet, dass zwischen dem zweiten Saugkanal (22) und den Frontabschnitten (36, 37) des ersten Saugkanals (21) jeweils ein die Bodenfläche kontaktierendes Stützelement (52, 53) angeordnet ist. 9. floor nozzle according to claim 8, characterized in that between the second suction channel (22) and the front portions (36, 37) of the first suction channel (21) each a bottom surface contacting the supporting element (52, 53) is arranged.
10. Bodendüse nach Anspruch 8, dadurch gekennzeichnet, dass die Bodenplatte (67) zwischen dem zweiten Saugkanal (22) und den Frontabschnitten (36, 37) des ersten Saugkanals (21) jeweils eine Öffnung (69, 70) zur Aufnahme eines Stützrades oder einer Stützrolle aufweist.10. floor nozzle according to claim 8, characterized in that the bottom plate (67) between the second suction channel (22) and the front portions (36, 37) of the first suction channel (21) each have an opening (69, 70) for receiving a support wheel or having a support roller.
11. Bodendüse nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Bodenplatte (17; 67) bezogen auf die Hauptbewegungsrichtung (28) hinter dem hinteren Fadenheber (45) eine sich praktisch über die gesamte Breite der Bodenplatte (17; 67) erstreckende Öffnung (55) zur Aufnahme einer heb- und senkbaren Abstreifleiste aufweist. 11. Floor nozzle according to one of the preceding claims, characterized in that the bottom plate (17; 67) with respect to the main movement direction (28) behind the rear thread lifter (45) extending over virtually the entire width of the bottom plate (17; 67) opening (55) for receiving a liftable and lowerable squeegee.
EP06806629A 2005-12-20 2006-10-31 Floor nozzle for vacuum cleaners Active EP1962660B8 (en)

Applications Claiming Priority (2)

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DE202005020507U DE202005020507U1 (en) 2005-12-20 2005-12-20 Floor nozzle for vacuum cleaner
PCT/EP2006/010458 WO2007071296A1 (en) 2005-12-20 2006-10-31 Floor nozzle for vacuum cleaners

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EP1962660A1 true EP1962660A1 (en) 2008-09-03
EP1962660B1 EP1962660B1 (en) 2011-01-12
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AT (1) ATE494827T1 (en)
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WO2007071296A1 (en) 2007-06-28
EP1962660B1 (en) 2011-01-12
DE202005020507U1 (en) 2006-04-13
CN101340839B (en) 2010-12-01
ATE494827T1 (en) 2011-01-15
CN101340839A (en) 2009-01-07
EP1962660B8 (en) 2011-02-23
DE502006008742D1 (en) 2011-02-24

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