EP3298944B1 - Floor nozzle for vacuum cleaner and vacuum cleaner - Google Patents

Floor nozzle for vacuum cleaner and vacuum cleaner Download PDF

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Publication number
EP3298944B1
EP3298944B1 EP17187397.9A EP17187397A EP3298944B1 EP 3298944 B1 EP3298944 B1 EP 3298944B1 EP 17187397 A EP17187397 A EP 17187397A EP 3298944 B1 EP3298944 B1 EP 3298944B1
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EP
European Patent Office
Prior art keywords
lip
suction mouth
strip
floor nozzle
suction
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.)
Active
Application number
EP17187397.9A
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German (de)
French (fr)
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EP3298944A3 (en
EP3298944A2 (en
Inventor
Martin Behrenswerth
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3298944A2 publication Critical patent/EP3298944A2/en
Publication of EP3298944A3 publication Critical patent/EP3298944A3/en
Application granted granted Critical
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/02Nozzles
    • A47L9/06Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0666Nozzles with fixed, e.g. adjustably fixed brushes or the like with tilting, floating or similarly arranged brushes, combs, lips or pads

Definitions

  • the invention relates to a floor nozzle for a vacuum cleaner for cleaning and care of floor surfaces, having a housing which has a lower surface in processing position of the bottom surface on which an elongated, extending transversely to the direction of processing suction mouth is arranged, wherein the suction mouth bounded by an associated suction mouth is, wherein the suction mouth edge has a fastening part and a lip, wherein the fastening part is fixed to the underside and the lip is designed to be movable relative to the fastening part.
  • the invention relates to a vacuum cleaner with such a floor nozzle.
  • vacuum cleaners are used to clean surfaces such as textile floor coverings and smooth floors.
  • a floor nozzle of the vacuum cleaner is continuously pushed back and forth on a floor surface for dust absorption.
  • the dust absorption efficiency of the vacuum cleaner depends strongly on the design of the floor nozzle.
  • a floor nozzle for a floor care device wherein here formed by a pivotable lip so-called suction mouth behind the suction mouth of the nozzle optimally adjusted to the conditions that occur when pushing and pulling the nozzle.
  • a floor nozzle for a floor care device wherein on the floor nozzle an elongated, extending transversely to the processing direction suction mouth is arranged, wherein within the Saugmundes a brush element is arranged, which is designed to be movable via a fastening part and a spring element.
  • the brush element is movable by a vertical spring movement perpendicular to the machining direction.
  • a floor nozzle with the features of claim 1 and a vacuum cleaner according to claim 11.
  • the suction mouth edge between the fastening part and the lip or strip has at least one spring element, wherein the spring element allows a vertical spring movement of the lip or bar perpendicular to the machining direction, the suction mouth edge can better adapt to the floor covering of the floor surface to be cleaned. Due to the vertical spring-loaded movement of the lip or strip, different and changing forces that result from pushing and pulling the floor nozzle in the machining direction, be compensated more effectively by the suction mouth edge.
  • the strip itself is rigid, that is formed of a hard material, while a lip deformable in the classical sense, that is, made of an elastic or soft material, such as rubber or an elastomer.
  • a lip deformable in the classical sense that is, made of an elastic or soft material, such as rubber or an elastomer.
  • the component referred to hereinafter as lip comprises both variants, ie the classic deformable component and the rigid strip.
  • the dust absorption efficiency of the floor nozzle - especially on carpets - can be advantageously increased so that good performance classes and dust absorption values can be achieved even at low recording powers.
  • the floor surface may be covered by a textile floor covering such as a carpet or carpet or by a hard floor such. As a wood parquet, laminate or PVC flooring are formed.
  • the vacuum cleaner may have a fan for generating a negative pressure, through which the floor nozzle guided over a floor surface to be cleaned receives dust and dirt from the floor surface.
  • the floor nozzle is moved back and forth by the user by means of push and pull movements in the machine direction.
  • the floor nozzle slides over the floor surface to be cleaned.
  • the underside of the floor nozzle slides over the bottom surface, while the underside of hard floors soils, possibly floated by spacer bristles, over these bottom surfaces.
  • the user can handle for example a connected to the suction pipe handle of the vacuum cleaner.
  • the suction mouth is elongated and extends substantially transversely to the machining direction.
  • elongated means that the preferably substantially rectangular suction mouth has a greater length transversely to the machining direction than the width in the machining direction.
  • the floor nozzle can also be arranged on a self-propelled vacuum cleaner, in particular suction robot, so that the machining direction of the floor nozzle corresponds to the direction of travel of the self-propelled vacuum cleaner.
  • a vacuum cleaner housing of the vacuum cleaner may have a dust receiving chamber in which the dust received via the floor nozzle can be collected, for example, in a dust bag.
  • a suction mouth associated with the suction mouth is arranged on the underside.
  • the arrangement of a suction mouth edge, which allows a vertical spring movement of the lip is included a forward movement of the floor nozzle in the machining direction of particular advantage when it is in front of the suction mouth.
  • carpet fibers swept over by the suction mouth edge are effectively bent, without requiring an excessive effort by the user during the advancing movement.
  • the vertical spring movement allows optimal positioning of the lip on the floor surface, even on changing surfaces.
  • the subsequent in the advancing movement of the lip suction mouth allows the effective absorption of dirt and dirt from the bent up from the lip carpet fibers.
  • the arrangement of a corresponding suction mouth behind the suction mouth allows a corresponding advantageous treatment of the bottom surface in the backward movement of the floor nozzle in the machine direction.
  • the floor nozzle has at least two suction mouth edges associated with a suction mouth, wherein at least one suction mouth edge is arranged on the underside in the machine direction and at least one suction mouth edge on the bottom in the machine direction behind the suction mouth.
  • the arrangement of two suction mouth edges in front of and behind a suction mouth in the machine direction enables optimal bending of the carpet fibers both in the forward movement and in the backward movement of the floor nozzle in the machine direction.
  • the bending of the carpet fibers through the suction mouth edge and the absorption of dirt and dirt by the subsequent in the respective movement suction mouth can ensure optimum cleaning of the floor surface, without a significantly increased force required by the user for this.
  • the same or at least approximately equal forces in the direction of the floor covering can be exerted on the front and the rear Saugmundkante on a flooring to be cleaned in a use of the proposed floor nozzle having floor care device when pushing and pulling the floor nozzle. Since with the presented approach the suction mouth edge in front of the suction mouth can react flexibly to changing conditions of the floor covering, the floor nozzle and in particular the lip opposite the floor covering can be optimally positioned to achieve good dust absorption values.
  • a preferred embodiment provides that the lip of at least one suction mouth edge is designed to be pivotable about an axis extending transversely to the machining direction.
  • the additional pivotability of the lip offers an additional possibility for adapting the lip position to the properties of the floor surface to be cleaned.
  • the pivoting of the lip allows for better alignment for effective bending of the swept carpet fibers, with the vertical element allowed by the spring element Movement provides optimal adaptation to changing properties of the floor surface to be cleaned.
  • At least one suction mouth edge arranged in the processing direction behind the lip, rear pivot limiting stopper for limiting a pivoting movement of the lip in a first pivoting direction and / or at least one Saugmundkante a arranged in the machining direction in front of the lip, front pivot limiting stop for limiting a pivoting deflection the lip has in a direction opposite to the first pivoting direction second pivoting direction.
  • the provision of a swing limit stop in front of or behind the lip provides an easy way to limit the pivoting angle of the lip about the transverse axis to the machining direction.
  • the limitation by means of a swing limit stop enables the lip to be supported against the boundary when it stops, thus preventing further pivoting. This support on the swing limit stop leads to a sufficiently strong processing, ie sweeping, even of harder carpets through the lip, the vertical displacement possibility of the lip by the spring element prevents excessive wear of the lip and reduces the effort for the user if necessary.
  • first pivot limiting stop provides a first abutment surface for the lip and / or that the second pivot limiting stop provides a second abutment surface for the lip, wherein in a rest position of the lip, the first abutment surface is substantially parallel to the lip and the second abutment surface limits the pivoting angle of the lip in the direction of the second pivot limiting stop such that the pivoting angle of the lip, starting from a position perpendicular to the machining direction, is between 45 ° and 90 °, preferably approximately 70 °.
  • a substantially parallel to the rest position of the lip, that is substantially perpendicular to the machining direction stop surface offers the possibility to set up the pivotable lip at stop with this surface opposite the machining direction, whereby the swept carpet fibers are bent particularly effective.
  • a stop surface which limits the pivoting angle of the lip from a rest position perpendicular to the machining direction between 45 ° and 90 °, allows the lip to abut against this surface after pivoting so that the lip slides more easily over the carpet fibers without this a special effort by the user would be required.
  • an advantageous embodiment of the invention provides that an arranged between the suction mouth and lip first pivot limiting stop has a substantially parallel to the lip in the rest position extending stop surface, while a the first Swivel limiting stop from the lip of opposite second pivot limiting stop the pivot angle of the lip in the direction of the second pivot limiting stop limited such that the pivot angle of the lip from a position perpendicular to the machining direction between 45 ° and 90 °, preferably about 70 °.
  • a substantially parallel to the rest position of the lip, that is substantially perpendicular to the machining direction stop surface offers the possibility to set up the pivotable lip at stop with this surface relative to the machining direction.
  • the lip is placed, which sweeps through the feed or retraction movement of the floor nozzle in the machining direction of the carpet fibers and bends, which are then freed from the subsequent suction of dirt and dirt.
  • a significant reduction in the force required for advancing and retracting the floor nozzle can be achieved by the lip, which sweeps over the carpet fibers by the advancing or retreating movement in the machining direction, which has already been cleaned by the suction mouth, is pivoted by up to 90 °.
  • At least one suction mouth edge is elongate and extends parallel to the suction mouth.
  • a preferred embodiment provides that on the underside a plurality of elongated, transverse to the processing direction and are arranged parallel to each other aligned Saugmünder, these Saugmünder are limited by at least one Saugmundkante.
  • the parallel arrangement of several suction nozzles on the underside of a floor nozzle offers the possibility of a particularly effective cleaning. This ensures that the suction mouths associated Saugmundkanten sweep in the feed and retraction movement in the machine direction successively to be cleaned floor surface.
  • This multiple sweeping of the bottom surface through the Saugmundkanten increases the dust pickup, although the volume of air delivered by the fan is divided in this case on several Saugmünder.
  • This multiple sweeping of the bottom surface also offers over floor nozzles with only a suction mouth the advantage that the user much earlier achieves a satisfactory cleaning result on the surface to be cleaned and must initiate less advancing and retreating movements of the floor nozzle.
  • At least one elongated, transversely to the processing direction extending air duct is arranged between the suction mouths on the underside.
  • the air channel extends from the bottom to the opposite top of the housing.
  • the passage of the air duct to the top of the floor nozzle ensures the highest possible air flow in the entire area of the suction mouth.
  • the subject matter of the invention is a vacuum cleaner for cleaning and care of floor surfaces with a fan for generating a negative pressure for receiving dirt by means of an air flow and a separation system for cleaning the air taken from the dirt, wherein the already described in more detail below vacuum cleaner and a floor nozzle according to has the previous and following description.
  • FIG. 1 shows a vacuum cleaner 2 according to the invention with a connected to the vacuum cleaner 2 floor nozzle 1.
  • the vacuum cleaner 1 shown in the embodiment is a so-called canister vacuum cleaner.
  • the floor nozzle 1 is connected here via its connecting piece 23 with a preferably telescopically designed suction pipe 18.
  • the floor nozzle 1 in this embodiment shown a separate from Vacuum cleaner housing 25, 25 a independent housing 3 on.
  • the telescopic suction tube 18 merges into a handle 19, to which a suction hose 20 is connected, which is connected to the vacuum cleaner housing 25, 25 a.
  • An electric connection cable 16 is used to operate a blower (not shown) of the vacuum cleaner 2 (not shown) in the vacuum cleaner housing 25, 25a in order to generate a negative pressure.
  • a blower not shown
  • a separation system 28 which in the exemplary embodiment is designed as a dust bag. This separation system 28 is located in a formed by the housing parts 25 and 25 a of the vacuum cleaner 2 dust chamber 29.
  • This dust chamber 29 is shown by a folding mechanism between the vacuum cleaner housing parts 25 and 25 a accessible and open, so that the separation system 28 is visible and removable.
  • the dust chamber 29 is closed and generates a negative pressure.
  • the air flow generated by the negative pressure is freed of dirt and dirt in the separation system 28 and led out of the vacuum cleaner 2 via an exhaust grille 27.
  • this has a treadle 22.
  • This treadle 22 includes switches that are large enough for a user to manipulate with their foot.
  • the treadle circuit 22 also typically includes a switch for actuating the automatic winder for the connection cable 26 (not shown) integrated in the vacuum cleaner housing 25, 25a.
  • a manual circuit 21 with the functions of the vacuum cleaner 2 and the floor nozzle 1 can be activated.
  • the vacuum cleaner 2 can be turned on and off via the manual circuit 21 and power levels of the fan (not shown) can be selected.
  • a user of the vacuum cleaner 1 can grasp it on the handle 19 and thus push the floor nozzle 1 forward and backward in a machining direction 5 marked by a push and pull movement in the machining direction 5, in order to clean the floor surface.
  • the floor nozzle 1 slides over the floor surface to be cleaned.
  • the floor nozzle 1 also supporting elements 24 in the form of wheels, which a defined distance of the bottom 4 ( Fig. 3 . 4 u. 6) to ensure the floor surfaces to be cleaned and easy handling when pushing back and forth the floor nozzle 1.
  • FIG. 2 schematically shows a floor nozzle 1 of the invention from a bird's eye view.
  • This top view clearly shows an oblong across Recognize machining direction 5 extending air duct 16, which extends to the top 17 of the housing 3.
  • FIG. 3 is a floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) a side view shown. For reasons of clarity, only a half floor nozzle 1 is shown in the side views. In addition, not all identical elements shown here are provided with reference numerals.
  • the floor nozzle 1 shown schematically here, as well as the embodiment in FIG. 2 an elongated transverse to the processing direction 5 extending air duct 16, which is located between the two Saugmündern 6, 6a.
  • the two elongated suction mouths 6, 6a on the underside 4 extend transversely to the machining direction 5 and are aligned parallel to each other.
  • the suction mouths 6, 6a are located in the illustrated processing position on the bottom surface facing the bottom surface 4 of the housing 3 of the floor nozzle 1.
  • the Saugmünder 6, 6a are each bounded by a suction mouth 6, 6a Saugmundkanten 7, 7a, wherein the Saugmundkanten , 7a have a fastening part 8, 8a and a lip 9, 9a.
  • the suction mouth edges 7, 7a are elongate and extend parallel to the suction mouths 6, 6a.
  • the fastening part 8, 8a of the suction mouth edges 7, 7a is fastened to the underside 4 of the floor nozzle 1, the lips 9, 9a being designed to be movable relative to the fastening parts 8, 8a.
  • each suction mouth edge 7, 7a between the fastening part 8, 8a and the lip 9, 9a has a spring element 10.
  • This spring element 10 allows a direction indicated as a double arrow spring movement 11 of the lip 9, 9a perpendicular to the machining direction 5.
  • unevenness in the floor surface to be cleaned can be compensated and the Saugmundkanten 7, 7a can thereby better adapt to changing properties of the bottom surface.
  • From each of a suction mouth 6, 6a associated Saugmundkanten 7, 7a is a suction mouth edge 7 on the bottom 4 in the machine direction 5 in front of the suction mouth 6, 6a and a suction mouth 7a on the bottom 4 in the machine direction 5 behind the suction mouth 6, 6a.
  • the lips 9, 9a of the suction mouth edges 7, 7a can each pivot about an axis 12, 12a extending transversely to the machining direction 5, wherein the pivot axes 12, 12a of the lips 9, 9a are indicated by dash-dotted lines.
  • a lip root 30, 30a is connected to the spring element 10 and the pivot axis 12, 12a is disposed between lip root 30, 30a and lip 9, 9a.
  • the pivoting movement 14, 14a of the lips 9, 9a is triggered by a contact of the suction mouth edges 7, 7a with the floor surface to be cleaned and by the advancing and retracting movement in the machining direction 5, initiated by the user.
  • the pivoting movement 14, 14 a of the lips 9, 9 a are limited by pivot limiting stops 13, 13 a on the bottom 4 of the floor nozzle 1.
  • pivot limiting stops 13, 13 a are arranged at each suction mouth edge 7, 7a, 9a arranged rear pivot boundary stop 13 and arranged in the machining direction 5 in front of the lip front pivot boundary stop 13a.
  • the rear pivot limiting stop 13 limits the pivoting deflection of the lip 9, 9a in a first pivoting direction 14
  • the front pivoting limiting stop 13a limits the pivoting deflection of the lip 9, 9a in a second pivoting direction 14a opposite to the first pivoting direction 14.
  • the pivoting directions 14, 14a are indicated by two curved arrows.
  • Both a lip 9, 9a associated pivot limiting stops 13, 13a each provide a stop surface 15, 15a for this purpose.
  • a first abutment surface 15 of the rear pivot limiting stop 13 extends substantially parallel to the lip 9, 9a in a rest position.
  • the second abutment surface 15a of the front pivot limiting stop 13a limits the pivot angle of the lip 9, 9a, starting from a position perpendicular to the machining direction 5 by about 55 °.
  • floor nozzle 1 is moved in the machine direction 5 from left to right.
  • the lips 9, 9a bear against the pivot limiting stops 13, 13a arranged to the left of them.
  • the air channel 16 extends from the bottom 4 to the top 3 opposite the housing 3.
  • the lips 9a of the suction mouth 6, 6a subsequent Saugmundkanten 7a in the direction of movement 5 are also applied to the pivot limiting stop 13a, in which case the pivot angle starting from a position perpendicular to the machining direction 5 is limited by about 55 ° by the abutment surface 15a. This reduces the force required for the movement of these subsequent suction mouth edges 7a over the substrate to be cleaned.
  • the lips 9, 9a pivot about the pivot axes 12, 12a and are in contact with the currently not used pivoting limit stops 13, 13a.
  • the lips 9, 9a of the suction mouth edges 7, 7a are optimally positioned for the respective machining direction 5.
  • FIG. 4 shows a floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) a side view.
  • the floor nozzle shown schematically here, as well as the embodiment in FIG. 2 , an elongated transverse to the processing direction 5 extending air duct 16, which is located between the two Saugmündern 6, 6a.
  • FIG. 4 Shown floor nozzle 1 changed to the effect that at the Saugmundkanten 7, 7a two limit stops 13 each having substantially parallel stop surfaces 15, wherein between the stop surfaces 15 each have a lip 9, 9a is arranged.
  • the stop surfaces 15 running perpendicular to the machining direction 5 support the lips 9, 9a in the machining direction 5, so that they mainly execute a spring movement 11 made possible by the spring elements 10 perpendicular to the machining direction 5.
  • Such a designed floor nozzle 1 allows the Saugmundkanten 7, 7a particularly easy and flexible with respect to the height to adapt to the properties of the flooring.
  • FIG. 5 schematically shows a floor nozzle 1 of the invention from a bird's eye view.
  • This top view clearly shows two elongate air ducts 16, 16a running transversely to the machining direction 5, which extend up to the upper side 17 of the housing.
  • FIG. 6 is a floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) a side view shown.
  • the floor nozzle 1 shown schematically here, as well as the embodiment in FIG. 5 , two elongated, transverse to the machine direction 5 extending air channels 16, 16a, which are located between three Saugmündern 6, 6a, 6b.
  • the suction mouths 6, 6a, 6b are located in the illustrated processing position on the bottom surface facing the bottom surface 4 of the housing 3 of the floor nozzle 1.
  • the Saugmünder 6, 6a, 6b are each by a suction mouth 6, 6a, 6b associated Saugmundkanten 7, 7a limited.
  • the lips 9, 9a of the suction mouth edges 7, 7a can each pivot transverse to the machining direction 5 extending axis 12, 12a.
  • floor nozzle 1 is moved in the machine direction 5 from left to right.
  • the lips 9, 9a bear against the pivot limiting stops 13, 13a arranged to the left of them.
  • the lips 9 of the suction mouth edges 7 arranged in the direction of movement 5 in front of the suction mouths 6, 6a, 6b are set up by the stop surfaces 15 extending essentially perpendicular to the rest position of the lips 9 and cover the carpet fibers, bending them up for cleaning.
  • the these lips 9 in the direction of movement subsequent suction mouth 6, 6a, 6b removed the dirt and dirt from the so bent up carpet fibers by means of the air flow generated by the blower of the vacuum cleaner 2. This airflow is indicated by the dashed arrows in FIG. 6 indicated.
  • the air ducts 16, 16a extend from the bottom 4 to the top 3 opposite the housing 3.
  • the lips 9a of the suction mouths 7a following the suction mouths 6, 6a, 6b in the direction of movement 5 are also applied to the pivoting limit stops 13a, in which case the swivel angle starting from a position perpendicular to the machining direction 5 is limited by about 55 ° by the abutment surface 15a. This reduces the force required for the movement of these subsequent suction mouth edges 7, 7a over the substrate to be cleaned.
  • the invention is not limited to the illustrated embodiments. Further embodiments are possible without departing from the basic idea.
  • the floor nozzle 1 may also be formed as part of a self-propelled vacuum cleaner.

Description

Die Erfindung betrifft eine Bodendüse für einen Staubsauger zur Reinigung und Pflege von Bodenflächen, mit einem Gehäuse, das eine in Bearbeitungsstellung der Bodenfläche zugewandte Unterseite aufweist, an der ein länglicher, quer zur Bearbeitungsrichtung verlaufender Saugmund angeordnet ist, wobei der Saugmund durch eine zugeordnete Saugmundkante begrenzt ist, wobei die Saugmundkante ein Befestigungsteil und eine Lippe aufweist, wobei das Befestigungsteil an der Unterseite befestigt ist und die Lippe gegenüber dem Befestigungsteil beweglich ausgebildet ist. Außerdem betrifft die Erfindung einen Staubsauger mit einer solchen Bodendüse.The invention relates to a floor nozzle for a vacuum cleaner for cleaning and care of floor surfaces, having a housing which has a lower surface in processing position of the bottom surface on which an elongated, extending transversely to the direction of processing suction mouth is arranged, wherein the suction mouth bounded by an associated suction mouth is, wherein the suction mouth edge has a fastening part and a lip, wherein the fastening part is fixed to the underside and the lip is designed to be movable relative to the fastening part. Moreover, the invention relates to a vacuum cleaner with such a floor nozzle.

Im privaten Haushalt sowie im Gewerbe kommen Staubsauger, zur Reinigung von Flächen wie textilen Bodenbelägen und glatten Böden zum Einsatz. Dabei wird zur Staubaufnahme eine Bodendüse des Staubsaugers auf einer Bodenfläche kontinuierlich vor- und zurückgeschoben. Die Staubaufnahmeeffektivität des Staubsaugers hängt dabei stark von der Gestaltung der Bodendüse ab.In the private household as well as in the industry, vacuum cleaners are used to clean surfaces such as textile floor coverings and smooth floors. In this case, a floor nozzle of the vacuum cleaner is continuously pushed back and forth on a floor surface for dust absorption. The dust absorption efficiency of the vacuum cleaner depends strongly on the design of the floor nozzle.

Aus der EP 2 152 135 B1 ist eine Bodendüse für ein Bodenpflegegerät bekannt, wobei sich hier eine durch eine schwenkbare Lippe ausgebildete sogenannte Saugmundkante hinter dem Saugmund der Düse optimal auf die Bedingungen, die beim Schieben und Ziehen der Düse auftreten, einstellt.From the EP 2 152 135 B1 a floor nozzle for a floor care device is known, wherein here formed by a pivotable lip so-called suction mouth behind the suction mouth of the nozzle optimally adjusted to the conditions that occur when pushing and pulling the nozzle.

Aus der US 2 932 055 A ist eine Bodendüse für ein Bodenpflegegerät bekannt, wobei an der Bodendüse ein länglicher, quer zur Bearbeitungsrichtung verlaufender Saugmund angeordnet ist, wobei innerhalb des Saugmundes ein Bürstenelement angeordnet ist, welches über ein Befestigungsteil und ein Federelement beweglich ausgebildet ist. Das Bürstenelement ist dabei durch eine vertikale Federbewegung senkrecht zur Bearbeitungsrichtung beweglich. Der Erfindung stellt sich somit das Problem, eine verbesserte Bodendüse und einen verbesserten Staubsauger anzugeben.From the US Pat. No. 2,932,055 a floor nozzle for a floor care device is known, wherein on the floor nozzle an elongated, extending transversely to the processing direction suction mouth is arranged, wherein within the Saugmundes a brush element is arranged, which is designed to be movable via a fastening part and a spring element. The brush element is movable by a vertical spring movement perpendicular to the machining direction. The invention thus presents the problem of providing an improved floor nozzle and an improved vacuum cleaner.

Erfindungsgemäß wird dieses Problem durch eine Bodendüse mit den Merkmalen des Patentanspruchs 1 und einen Staubsauger gemäß Anspruch 11 gelöst. Dadurch, dass die Saugmundkante zwischen dem Befestigungsteil und der Lippe oder Leiste mindestens ein Federelement aufweist, wobei das Federelement eine vertikale Federbewegung der Lippe oder Leiste senkrecht zur Bearbeitungsrichtung ermöglicht, kann sich die Saugmundkante besser an den Bodenbelag der zu reinigenden Bodenfläche anpassen. Durch die vertikale federbelastete Bewegung der Lippe oder Leiste können unterschiedliche und wechselnde Kräfte, die durch Schieben und Ziehen der Bodendüse in Bearbeitungsrichtung entstehen, wirksamer durch die Saugmundkante ausgeglichen werden. Die Leiste selbst ist starr, also aus einem harten Werkstoff ausgebildet, während eine Lippe im klassischen Sinne verformbar, also aus einem elastischen oder weichen Werkstoff, wie Gummi oder einem Elastomer, besteht. Das im folgende mit Lippe bezeichnete Bauteil umfasst hier jedoch beide Varianten, also das klassische verformbare Bauteil sowie die starre Leiste.According to the invention this problem is solved by a floor nozzle with the features of claim 1 and a vacuum cleaner according to claim 11. Characterized in that the suction mouth edge between the fastening part and the lip or strip has at least one spring element, wherein the spring element allows a vertical spring movement of the lip or bar perpendicular to the machining direction, the suction mouth edge can better adapt to the floor covering of the floor surface to be cleaned. Due to the vertical spring-loaded movement of the lip or strip, different and changing forces that result from pushing and pulling the floor nozzle in the machining direction, be compensated more effectively by the suction mouth edge. The strip itself is rigid, that is formed of a hard material, while a lip deformable in the classical sense, that is, made of an elastic or soft material, such as rubber or an elastomer. However, the component referred to hereinafter as lip comprises both variants, ie the classic deformable component and the rigid strip.

Mit einer Anordnung einer schwenkbaren Saugmundlippe an einer Bodendüse kann die Staubaufnahmeeffektivität der Bodendüse - insbesondere auf Teppichböden - vorteilhaft erhöht werden, sodass auch bei niedrigen Aufnahmeleistungen gute Performanceklassen bzw. Staubaufnahmewerte erreicht werden können.With an arrangement of a pivotable suction lip on a floor nozzle, the dust absorption efficiency of the floor nozzle - especially on carpets - can be advantageously increased so that good performance classes and dust absorption values can be achieved even at low recording powers.

Die Bodenfläche kann durch einen textilen Bodenbelag wie einen Teppich oder Teppichboden oder durch einen Hartboden wie z. B. ein Holzparkett, Laminat oder einen PVC-Bodenbelag gebildet werden.The floor surface may be covered by a textile floor covering such as a carpet or carpet or by a hard floor such. As a wood parquet, laminate or PVC flooring are formed.

Der Staubsauger kann ein Gebläse zur Erzeugung eines Unterdruckes aufweisen, durch den die über eine zu reinigende Bodenfläche geführte Bodendüse Staub und Schmutz von der Bodenfläche aufnimmt. Hierzu wird die Bodendüse durch den Benutzer mittels Schub- und Zugbewegungen in Bearbeitungsrichtung vor und zurück bewegt. Hierdurch gleitet die Bodendüse über die zu reinigende Bodenfläche. Insbesondere bei langflorigen Teppichen gleitet die Unterseite der Bodendüse über die Bodenfläche, während die Unterseite bei Hartböden beanstandet, gegebenenfalls durch Abstandsborsten, über diese Bodenflächen hinweg schwebt. Der Benutzer kann dazu beispielsweise einen mit dem Saugrohr verbundenen Griff des Staubsaugers handhaben. Damit die Reinigung und Pflege des Bodenbelags möglichst effektiv ausgeführt werden kann, ist der Saugmund länglich ausgebildet und verläuft im Wesentlichen quer zur Bearbeitungsrichtung. Länglich ausgebildet bedeutet in diesem Zusammenhang, dass der vorzugsweise im Wesentlichen rechteckige Saugmund eine größere Länge quer zur Bearbeitungsrichtung aufweist, als Breite in Bearbeitungsrichtung. Die Bodendüse kann auch an einem selbstständig fahrenden Staubsauger, insbesondere Saugroboter, angeordnet sein, sodass die Bearbeitungsrichtung der Bodendüse der Fahrtrichtung des selbstständig fahrenden Staubsaugers entspricht. Ein Staubsaugergehäuse des Staubsaugers kann eine Staubaufnahmekammer aufweisen, in welcher der über die Bodendüse aufgenommene Staub beispielsweise in einem Staubbeutel gesammelt werden kann. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.The vacuum cleaner may have a fan for generating a negative pressure, through which the floor nozzle guided over a floor surface to be cleaned receives dust and dirt from the floor surface. For this purpose, the floor nozzle is moved back and forth by the user by means of push and pull movements in the machine direction. As a result, the floor nozzle slides over the floor surface to be cleaned. Especially in long-pile carpets, the underside of the floor nozzle slides over the bottom surface, while the underside of hard floors soils, possibly floated by spacer bristles, over these bottom surfaces. The user can handle for example a connected to the suction pipe handle of the vacuum cleaner. So that the cleaning and care of the floor covering can be carried out as effectively as possible, the suction mouth is elongated and extends substantially transversely to the machining direction. In this context, elongated means that the preferably substantially rectangular suction mouth has a greater length transversely to the machining direction than the width in the machining direction. The floor nozzle can also be arranged on a self-propelled vacuum cleaner, in particular suction robot, so that the machining direction of the floor nozzle corresponds to the direction of travel of the self-propelled vacuum cleaner. A vacuum cleaner housing of the vacuum cleaner may have a dust receiving chamber in which the dust received via the floor nozzle can be collected, for example, in a dust bag. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass in Bearbeitungsrichtung vor oder in Bearbeitungsrichtung hinter dem Saugmund eine dem Saugmund zugeordnete Saugmundkante an der Unterseite angeordnet ist. Die Anordnung einer Saugmundkante, welche eine vertikale Federbewegung der Lippe ermöglicht, ist bei einer Vorwärtsbewegung der Bodendüse in Bearbeitungsrichtung von besonderem Vorteil, wenn sich diese vor dem Saugmund befindet. Durch eine solche Saugmundkante werden durch die Saugmundkante überstrichene Teppichfasern wirksam aufgebogen, ohne dass ein übermäßiger Kraftaufwand durch den Benutzer bei der Vorschubbewegung erforderlich ist. Die vertikale Federbewegung ermöglicht eine optimale Positionierung der Lippe auf der Bodenfläche auch bei wechselnden Untergründen. Der in der Vorschubbewegung der Lippe nachfolgende Saugmund ermöglicht die wirksame Aufnahme von Schmutz und Dreck aus den von der Lippe aufgebogenen Teppichfasern. Die Anordnung einer entsprechenden Saugmundkante hinter dem Saugmund ermöglicht eine entsprechende vorteilhafte Behandlung der Bodenfläche bei der Rückwärtsbewegung der Bodendüse in Bearbeitungsrichtung.According to an advantageous embodiment of the invention, it is provided that in the processing direction before or in the processing direction behind the suction mouth, a suction mouth associated with the suction mouth is arranged on the underside. The arrangement of a suction mouth edge, which allows a vertical spring movement of the lip is included a forward movement of the floor nozzle in the machining direction of particular advantage when it is in front of the suction mouth. By such a suction mouth edge carpet fibers swept over by the suction mouth edge are effectively bent, without requiring an excessive effort by the user during the advancing movement. The vertical spring movement allows optimal positioning of the lip on the floor surface, even on changing surfaces. The subsequent in the advancing movement of the lip suction mouth allows the effective absorption of dirt and dirt from the bent up from the lip carpet fibers. The arrangement of a corresponding suction mouth behind the suction mouth allows a corresponding advantageous treatment of the bottom surface in the backward movement of the floor nozzle in the machine direction.

Eine vorteilhafte Ausführung ist, dass die Bodendüse wenigstens zwei einem Saugmund zugeordnete Saugmundkanten aufweist, wobei wenigstens eine Saugmundkante an der Unterseite in Bearbeitungsrichtung vor und wenigstens eine Saugmundkante an der Unterseite in Bearbeitungsrichtung hinter dem Saugmund angeordnet ist. Die Anordnung von zwei Saugmundkanten vor und hinter einem Saugmund in Bearbeitungsrichtung ermöglicht ein optimales Aufbiegen der Teppichfasern sowohl in der Vorwärtsbewegung als auch in der Rückwärtsbewegung der Bodendüse in Bearbeitungsrichtung. Das Aufbiegen der Teppichfasern durch die Saugmundkante und das Aufsaugen von Schmutz und Dreck durch den in der jeweiligen Bewegung nachfolgenden Saugmund kann eine optimale Reinigung der Bodenfläche sicherstellen, ohne dass ein deutlich erhöhter Kraftaufwand durch den Benutzer hierfür erforderlich ist.An advantageous embodiment is that the floor nozzle has at least two suction mouth edges associated with a suction mouth, wherein at least one suction mouth edge is arranged on the underside in the machine direction and at least one suction mouth edge on the bottom in the machine direction behind the suction mouth. The arrangement of two suction mouth edges in front of and behind a suction mouth in the machine direction enables optimal bending of the carpet fibers both in the forward movement and in the backward movement of the floor nozzle in the machine direction. The bending of the carpet fibers through the suction mouth edge and the absorption of dirt and dirt by the subsequent in the respective movement suction mouth can ensure optimum cleaning of the floor surface, without a significantly increased force required by the user for this.

Gemäß dem hier vorgestellten Ansatz können bei einem Einsatz eines die vorgeschlagene Bodendüse aufweisenden Bodenpflegegeräts beim Schieben und Ziehen der Bodendüse über einen zu reinigenden Bodenbelag auf die vordere und die hintere Saugmundkante gleiche oder zumindest annähernd gleiche Kräfte in Richtung des Bodenbelags ausgeübt werden. Da mit dem vorgestellten Ansatz die Saugmundkante vor dem Saugmund flexibel auf wechselnde Bedingungen des Bodenbelags reagieren kann, kann die Bodendüse und insbesondere die Lippe gegenüber dem Bodenbelag optimal zum Erzielen guter Staubaufnahmewerte positioniert werden.According to the approach presented here, the same or at least approximately equal forces in the direction of the floor covering can be exerted on the front and the rear Saugmundkante on a flooring to be cleaned in a use of the proposed floor nozzle having floor care device when pushing and pulling the floor nozzle. Since with the presented approach the suction mouth edge in front of the suction mouth can react flexibly to changing conditions of the floor covering, the floor nozzle and in particular the lip opposite the floor covering can be optimally positioned to achieve good dust absorption values.

Eine bevorzugte Ausführung sieht vor, dass die Lippe mindestens einer Saugmundkante um eine quer zur Bearbeitungsrichtung verlaufende Achse schwenkbar ausgebildet ist. Die zusätzliche Verschwenkbarkeit der Lippe bietet eine zusätzliche Möglichkeit für eine Anpassung der Lippenposition an die Eigenschaften der zu reinigenden Bodenfläche. Die Verschwenkung der Lippe ermöglicht eine bessere Ausrichtung für ein wirksames Aufbiegen der überstrichenen Teppichfasern, wobei die durch das Federelement ermöglichte vertikale Bewegung eine optimale Anpassung an wechselnde Eigenschaften der zu reinigenden Bodenfläche bietet.A preferred embodiment provides that the lip of at least one suction mouth edge is designed to be pivotable about an axis extending transversely to the machining direction. The additional pivotability of the lip offers an additional possibility for adapting the lip position to the properties of the floor surface to be cleaned. The pivoting of the lip allows for better alignment for effective bending of the swept carpet fibers, with the vertical element allowed by the spring element Movement provides optimal adaptation to changing properties of the floor surface to be cleaned.

Besonders vorteilhaft ist die Weiterbildung, dass mindestens eine Saugmundkante einen in Bearbeitungsrichtung hinter der Lippe angeordneten, hinteren Schwenkbegrenzungsanschlag zum Begrenzen eines Schwenkausschlags der Lippe in einer ersten Schwenkrichtung und / oder mindestens eine Saugmundkante einen in Bearbeitungsrichtung vor der Lippe angeordneten, vorderen Schwenkbegrenzungsanschlag zum Begrenzen eines Schwenkausschlags der Lippe in einer zu der ersten Schwenkrichtung entgegengesetzten zweiten Schwenkrichtung aufweist. Die Anordnung eines Schwenkbegrenzungsanschlags vor oder hinter der Lippe bietet eine einfache Möglichkeit den Schwenkwinkel der Lippe um die quer zur Bearbeitungsrichtung verlaufende Achse zu begrenzen. Die Begrenzung mittels Schwenkbegrenzungsanschlag ermöglicht, dass die Lippe bei Anschlag an die Begrenzung abgestützt wird, sodass eine weitere Verschwenkung verhindert wird. Diese Abstützung an dem Schwenkbegrenzungsanschlag führt zu einer ausreichend starken Bearbeitung, also Überstreichung, auch von härteren Teppichböden durch die Lippe, wobei die vertikale Verschiebemöglichkeit der Lippe durch das Federelement eine allzu starke Abnutzung der Lippe verhindert und den Kraftaufwand für den Nutzer falls nötig reduziert.Particularly advantageous is the development that at least one suction mouth edge arranged in the processing direction behind the lip, rear pivot limiting stopper for limiting a pivoting movement of the lip in a first pivoting direction and / or at least one Saugmundkante a arranged in the machining direction in front of the lip, front pivot limiting stop for limiting a pivoting deflection the lip has in a direction opposite to the first pivoting direction second pivoting direction. The provision of a swing limit stop in front of or behind the lip provides an easy way to limit the pivoting angle of the lip about the transverse axis to the machining direction. The limitation by means of a swing limit stop enables the lip to be supported against the boundary when it stops, thus preventing further pivoting. This support on the swing limit stop leads to a sufficiently strong processing, ie sweeping, even of harder carpets through the lip, the vertical displacement possibility of the lip by the spring element prevents excessive wear of the lip and reduces the effort for the user if necessary.

Weiter vorteilhaft ist die Ausgestaltung, dass der erste Schwenkbegrenzungsanschlag eine erste Anschlagsfläche für die Lippe bereitstellt und / oder dass der zweite Schwenkbegrenzungsanschlag eine zweite Anschlagsfläche für die Lippe bereitstellt, wobei in einer Ruhestellung der Lippe die erste Anschlagsfläche im Wesentlichen parallel zu der Lippe verläuft und die zweite Anschlagsfläche den Schwenkwinkel der Lippe in Richtung des zweiten Schwenkbegrenzungsanschlags derart begrenzt, dass der Schwenkwinkel der Lippe ausgehend von einer Position senkrecht zur Bearbeitungsrichtung zwischen 45° und 90°, vorzugsweise ca. 70° beträgt. Eine im Wesentlichen parallel zur Ruhestellung der Lippe, also im Wesentlichen senkrecht zur Bearbeitungsrichtung verlaufende Anschlagsfläche bietet die Möglichkeit die verschwenkbare Lippe bei Anschlag mit dieser Fläche gegenüber der Bearbeitungsrichtung aufzustellen, wodurch die überstrichenen Teppichfasern besonders effektiv aufgebogen werden. Eine Anschlagsfläche, die den Schwenkwinkel der Lippe ausgehend von einer Ruhestellung senkrecht zur Bearbeitungsrichtung zwischen 45° und 90° begrenzt, ermöglicht, dass sich die Lippe nach einer entsprechenden Verschwenkung an diese Fläche anlegt, sodass die Lippe einfacher über die Teppichfasern gleitet, ohne dass hierfür ein besonderer Kraftaufwand durch den Benutzer erforderlich wäre.Further advantageous embodiment is that the first pivot limiting stop provides a first abutment surface for the lip and / or that the second pivot limiting stop provides a second abutment surface for the lip, wherein in a rest position of the lip, the first abutment surface is substantially parallel to the lip and the second abutment surface limits the pivoting angle of the lip in the direction of the second pivot limiting stop such that the pivoting angle of the lip, starting from a position perpendicular to the machining direction, is between 45 ° and 90 °, preferably approximately 70 °. A substantially parallel to the rest position of the lip, that is substantially perpendicular to the machining direction stop surface offers the possibility to set up the pivotable lip at stop with this surface opposite the machining direction, whereby the swept carpet fibers are bent particularly effective. A stop surface, which limits the pivoting angle of the lip from a rest position perpendicular to the machining direction between 45 ° and 90 °, allows the lip to abut against this surface after pivoting so that the lip slides more easily over the carpet fibers without this a special effort by the user would be required.

Eine vorteilhafte Ausführungsform der Erfindung sieht vor, dass ein zwischen Saugmund und Lippe angeordneter erster Schwenkbegrenzungsanschlag eine im Wesentlichen parallel zu der Lippe in Ruhestellung verlaufende Anschlagsfläche aufweist, während ein dem ersten Schwenkbegrenzungsanschlag von der Lippe aus gegenüberliegender zweiter Schwenkbegrenzungsanschlag den Schwenkwinkel der Lippe in Richtung des zweiten Schwenkbegrenzungsanschlags derart begrenzt, dass der Schwenkwinkel der Lippe ausgehend von einer Position senkrecht zur Bearbeitungsrichtung zwischen 45° und 90°, vorzugsweise ca. 70° beträgt. Eine im Wesentlichen parallel zur Ruhestellung der Lippe, also im Wesentlichen senkrecht zur Bearbeitungsrichtung verlaufende Anschlagsfläche bietet die Möglichkeit die verschwenkbare Lippe bei Anschlag mit dieser Fläche gegenüber der Bearbeitungsrichtung aufzustellen. Dies hat besondere Vorteile, wenn hierdurch die Lippe aufgestellt wird, welche durch die Vorschub- oder Rückzugbewegung der Bodendüse in Bearbeitungsrichtung die Teppichfasern überstreicht und aufbiegt, welche anschließend von dem nachfolgenden Saugmund von Schmutz und Dreck befreit werden. Eine deutliche Reduzierung des notwendigen Kraftaufwandes beim Vorschub und Rückzug der Bodendüse kann dadurch erreicht werden, dass die Lippe, welche durch die Vorschub- oder Rückzugbewegung in Bearbeitungsrichtung die Teppichfasern überstreicht, welche bereits durch den Saugmund gereinigt wurden, um bis zu 90° verschwenkt wird.An advantageous embodiment of the invention provides that an arranged between the suction mouth and lip first pivot limiting stop has a substantially parallel to the lip in the rest position extending stop surface, while a the first Swivel limiting stop from the lip of opposite second pivot limiting stop the pivot angle of the lip in the direction of the second pivot limiting stop limited such that the pivot angle of the lip from a position perpendicular to the machining direction between 45 ° and 90 °, preferably about 70 °. A substantially parallel to the rest position of the lip, that is substantially perpendicular to the machining direction stop surface offers the possibility to set up the pivotable lip at stop with this surface relative to the machining direction. This has particular advantages, if in this way the lip is placed, which sweeps through the feed or retraction movement of the floor nozzle in the machining direction of the carpet fibers and bends, which are then freed from the subsequent suction of dirt and dirt. A significant reduction in the force required for advancing and retracting the floor nozzle can be achieved by the lip, which sweeps over the carpet fibers by the advancing or retreating movement in the machining direction, which has already been cleaned by the suction mouth, is pivoted by up to 90 °.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass wenigstens eine Saugmundkante länglich ausgebildet ist und sich parallel zum Saugmund erstreckt. Mit einer Saugmundkante, welche länglich ausgebildet ist und parallel zu dem länglich erstreckenden Saugmund verläuft, ist eine möglichst effektive Bearbeitung von Teppichböden während des Staubsaugens möglich, da die Saugmundkante quer zur Bearbeitungsrichtung verläuft und so einen möglichst breiten Bereich der zu reinigenden Bodenfläche abdeckt.According to an advantageous embodiment of the invention, it is provided that at least one suction mouth edge is elongate and extends parallel to the suction mouth. With a suction mouth edge, which is elongated and runs parallel to the longitudinally extending suction mouth, as effective as possible processing of carpets during vacuuming is possible because the suction mouth edge extends transversely to the processing direction and thus covers the widest possible area of the floor surface to be cleaned.

Eine bevorzugte Ausführung sieht vor, dass an der Unterseite mehrere längliche, quer zur Bearbeitungsrichtung verlaufende und parallel zu einander ausgerichtete Saugmünder angeordnet sind, wobei diese Saugmünder durch mindestens eine Saugmundkante begrenzt sind. Die parallele Anordnung mehrerer Saugmünder an der Unterseite einer Bodendüse bietet die Möglichkeit einer besonders effektiven Reinigung. Hierdurch wird gewährleistet, dass die den Saugmündern zugeordneten Saugmundkanten bei der Vorschub- und Rückzugbewegung in Bearbeitungsrichtung nacheinander die zu reinigende Bodenfläche überstreichen. Dieses mehrfache Überstreichen der Bodenfläche durch die Saugmundkanten erhöht die Staubaufnahme, obwohl die von dem Gebläse geförderte Luftmenge sich in diesem Fall auf mehrere Saugmünder aufteilt. Dieses mehrfache Überstreichen der Bodenfläche bietet zudem gegenüber Bodendüsen mit nur einem Saugmund den Vorteil, dass der Benutzer wesentlich früher ein zufriedenstellendes Reinigungsergebnis auf der zu reinigenden Oberfläche erzielt und weniger Vorschub- und Rückzugbewegungen der Bodendüse einleiten muss.A preferred embodiment provides that on the underside a plurality of elongated, transverse to the processing direction and are arranged parallel to each other aligned Saugmünder, these Saugmünder are limited by at least one Saugmundkante. The parallel arrangement of several suction nozzles on the underside of a floor nozzle offers the possibility of a particularly effective cleaning. This ensures that the suction mouths associated Saugmundkanten sweep in the feed and retraction movement in the machine direction successively to be cleaned floor surface. This multiple sweeping of the bottom surface through the Saugmundkanten increases the dust pickup, although the volume of air delivered by the fan is divided in this case on several Saugmünder. This multiple sweeping of the bottom surface also offers over floor nozzles with only a suction mouth the advantage that the user much earlier achieves a satisfactory cleaning result on the surface to be cleaned and must initiate less advancing and retreating movements of the floor nozzle.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, dass zwischen den Saugmündern an der Unterseite mindestens ein länglicher, quer zur Bearbeitungsrichtung verlaufender Luftkanal angeordnet ist. Mit einem Luftkanal, welcher länglich ausgebildet ist und parallel zu dem länglich erstreckenden Saugmund verläuft, ist ein ausreichend hoher Luftstrom an den Saugmündern während des Staubsaugens erreichbar, da die Saugmundkanten auf einem möglichst breiten Bereich der zu reinigenden Bodenfläche zuverlässig umströmt werden.According to an advantageous embodiment of the invention, it is provided that at least one elongated, transversely to the processing direction extending air duct is arranged between the suction mouths on the underside. With an air duct, which is elongate and runs parallel to the longitudinally extending suction mouth, a sufficiently high air flow at the suction mouths during the Staubsaugens can be achieved since the Saugmundkanten are reliably flowed around as wide as possible to be cleaned bottom surface.

Eine vorteilhafte Ausführung ist, dass der Luftkanal sich von der Unterseite bis zur am Gehäuse gegenüberliegenden Oberseite erstreckt. Die Durchführung des Luftkanals bis zur Oberseite der Bodendüse stellt einen möglichst hohen Luftstrom im gesamten Bereich der Saugmünder sicher.An advantageous embodiment is that the air channel extends from the bottom to the opposite top of the housing. The passage of the air duct to the top of the floor nozzle ensures the highest possible air flow in the entire area of the suction mouth.

Ferner ist Gegenstand der Erfindung ein Staubsauger zur Reinigung und Pflege von Bodenflächen mit einem Gebläse zur Erzeugung eines Unterdruckes zur Aufnahme von Schmutz mittels eines Luftstromes und einem Abscheidesystem zur Reinigung der aufgenommenen Luft vom Schmutz, wobei der bereits und im Folgenden näher beschriebene Staubsauger eine Bodendüse gemäß der vorherigen und nachfolgenden Beschreibung aufweist.Furthermore, the subject matter of the invention is a vacuum cleaner for cleaning and care of floor surfaces with a fan for generating a negative pressure for receiving dirt by means of an air flow and a separation system for cleaning the air taken from the dirt, wherein the already described in more detail below vacuum cleaner and a floor nozzle according to has the previous and following description.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aufgrund der nachfolgenden Beschreibung sowie anhand der Zeichnungen. Ausführungsbeispiele der Erfindung sind in den folgenden Zeichnungen rein schematisch dargestellt und werden nachfolgend näher beschrieben. Einander entsprechende Gegenstände oder Elemente sind in allen Figuren mit den gleichen Bezugszeichen versehen. Es zeigt

Figur 1
Erfindungsgemäßer Staubsauger mit Bodendüse,
Figur 2
Erfindungsgemäße Bodendüse in Draufsicht
Figur 3
Erfindungsgemäße Bodendüse in Seitenansicht
Figur 4
Erfindungsgemäße Bodendüse in Seitenansicht
Figur 5
Erfindungsgemäße Bodendüse in Draufsicht
Figur 6
Erfindungsgemäße Bodendüse in Seitenansicht
Further features, details and advantages of the invention will become apparent from the following description and from the drawings. Embodiments of the invention are shown purely schematically in the following drawings and will be described in more detail below. Corresponding objects or elements are provided in all figures with the same reference numerals. It shows
FIG. 1
Vacuum cleaner according to the invention with floor nozzle,
FIG. 2
Floor nozzle according to the invention in plan view
FIG. 3
Inventive floor nozzle in side view
FIG. 4
Inventive floor nozzle in side view
FIG. 5
Floor nozzle according to the invention in plan view
FIG. 6
Inventive floor nozzle in side view

In den Figuren mit dem Bezugszeichen 1 bezeichnet ist eine erfindungsgemäße Bodendüse rein schematisch dargestellt. Die Darstellung gemäß Figur 1 zeigt einen erfindungsgemäßen Staubsauger 2 mit einer an den Staubsauger 2 angeschlossenen Bodendüse 1. Bei dem im Ausführungsbeispiel dargestellten Staubsauger 1 handelt es sich um einen sogenannten Kanister-Staubsauger. Die Bodendüse 1 ist hier über ihren Anschlussstutzen 23 mit einem vorzugsweise teleskopierbar ausgestalteten Saugrohr 18 verbunden. Weiterhin weist die Bodendüse 1 bei diesem gezeigten Ausführungsbeispiel ein eigenes vom Staubsaugergehäuse 25, 25a unabhängiges Gehäuse 3 auf. Das teleskopierbare Saugrohr 18 geht in einen Handgriff 19 über, an dem ein Saugschlauch 20 angeschlossen ist, der mit dem Staubsaugergehäuse 25, 25a verbunden ist. Über ein elektrisches Anschlusskabel 16 wird ein in dem Staubsaugergehäuse 25, 25a integriertes (nicht gezeigtes) Gebläse des Staubsaugers 2 mit Strom betrieben, um einen Unterdruck zu erzeugen. Mittels dieses Unterdruckes wird Schmutz und Dreck von der zu reinigenden Bodenfläche durch einen Luftstrom über den Saugmund 6 (Fig. 3, 4 u. 6) der Bodendüse 1 aufgenommen und über das Saugrohr 18 und den Saugschlauch 20 in das Gehäuse 25, 25a des Staubsaugers 2 abtransportiert. In diesem Gehäuse 25, 25a vorgesehen ist ein Abscheidesystem 28, welches im Ausführungsbeispiel als Staubbeutel ausgebildet ist. Dieses Abscheidesystem 28 befindet sich in einem durch die Gehäuseteile 25 und 25a des Staubsaugers 2 gebildeten Staubraum 29. Dieser Staubraum 29 ist durch einen Klappmechanismus zwischen den Staubsaugergehäuseteilen 25 und 25a zugänglich und geöffnet dargestellt, sodass das Abscheidesystem 28 sichtbar und entnehmbar ist. Für den Betrieb des Staubsaugers 2 wird der Staubraum 29 geschlossen und ein Unterdruck erzeugt. Der durch den Unterdruck erzeugte Luftstrom wird in dem Abscheidesystem 28 von Schmutz und Dreck befreit und über ein Abluftgitter 27 aus dem Staubsauger 2 herausgeleitet. Zum Ein- und Ausschalten des Staubsaugers 2 weist dieser eine Trittschaltung 22 auf. Diese Trittschaltung 22 umfasst Schalter, die ausreichend groß sind, damit ein Benutzer diese mit dem Fuß betätigen kann. Die Trittschaltung 22 weist üblicherweise auch einen Schalter zur Betätigung der im Staubsaugergehäuse 25, 25a integrierten (nicht gezeigten) Wickelautomatik für das Anschlusskabel 26 auf. An dem Handgriff 19 befindet sich zudem eine Handschaltung 21 mit der Funktionen des Staubsaugers 2 und der Bodendüse 1 aktiviert werden können. Außerdem kann der Staubsauger 2 über die Handschaltung 21 ein- und ausgeschaltet werden und es können Leistungsstufen des (nicht gezeigten) Gebläses ausgewählt werden. Ein Benutzer des Staubsaugers 1 kann diesen an dem Handgriff 19 ergreifen und so die Bodendüse 1 in einer mittels einer Schub- und Zugbewegung in der als Doppelpfeil gekennzeichneten Bearbeitungsrichtung 5 vor- und zurückschieben, um die Bodenfläche zu reinigen. Hierbei gleitet die Bodendüse 1 über die zu reinigende Bodenfläche. Besonders bei langflorigen Teppichen gleitet die Unterseite 4 (Fig. 3, 4 u. 6) der Bodendüse 1 über die Bodenfläche, während die Unterseite 4 (Fig. 3, 4 u. 6) bei Hartböden beanstandet, gegebenenfalls durch Abstandsborsten, über diese Bodenflächen hinweg schwebt. Im dargestellten Ausführungsbeispiel weist die Bodendüse 1 außerdem Abstützelemente 24 in Form von Rädern auf, welche einen definierten Abstand der Unterseite 4 (Fig. 3, 4 u. 6) zu den zu reinigenden Bodenflächen und eine einfache Handhabung beim Vor- und Zurückschieben der Bodendüse 1 sicherstellen.In the figures, designated by the reference numeral 1, a floor nozzle according to the invention is shown purely schematically. The representation according to FIG. 1 shows a vacuum cleaner 2 according to the invention with a connected to the vacuum cleaner 2 floor nozzle 1. The vacuum cleaner 1 shown in the embodiment is a so-called canister vacuum cleaner. The floor nozzle 1 is connected here via its connecting piece 23 with a preferably telescopically designed suction pipe 18. Furthermore, the floor nozzle 1 in this embodiment shown a separate from Vacuum cleaner housing 25, 25 a independent housing 3 on. The telescopic suction tube 18 merges into a handle 19, to which a suction hose 20 is connected, which is connected to the vacuum cleaner housing 25, 25 a. An electric connection cable 16 is used to operate a blower (not shown) of the vacuum cleaner 2 (not shown) in the vacuum cleaner housing 25, 25a in order to generate a negative pressure. By means of this negative pressure, dirt and dirt from the floor surface to be cleaned by an air flow through the suction port 6 ( Fig. 3 . 4 u. 6) of the floor nozzle 1 and transported via the suction pipe 18 and the suction hose 20 into the housing 25, 25 a of the vacuum cleaner 2. Provided in this housing 25, 25a is a separation system 28, which in the exemplary embodiment is designed as a dust bag. This separation system 28 is located in a formed by the housing parts 25 and 25 a of the vacuum cleaner 2 dust chamber 29. This dust chamber 29 is shown by a folding mechanism between the vacuum cleaner housing parts 25 and 25 a accessible and open, so that the separation system 28 is visible and removable. For the operation of the vacuum cleaner 2, the dust chamber 29 is closed and generates a negative pressure. The air flow generated by the negative pressure is freed of dirt and dirt in the separation system 28 and led out of the vacuum cleaner 2 via an exhaust grille 27. To turn on and off the vacuum cleaner 2, this has a treadle 22. This treadle 22 includes switches that are large enough for a user to manipulate with their foot. The treadle circuit 22 also typically includes a switch for actuating the automatic winder for the connection cable 26 (not shown) integrated in the vacuum cleaner housing 25, 25a. On the handle 19 is also a manual circuit 21 with the functions of the vacuum cleaner 2 and the floor nozzle 1 can be activated. In addition, the vacuum cleaner 2 can be turned on and off via the manual circuit 21 and power levels of the fan (not shown) can be selected. A user of the vacuum cleaner 1 can grasp it on the handle 19 and thus push the floor nozzle 1 forward and backward in a machining direction 5 marked by a push and pull movement in the machining direction 5, in order to clean the floor surface. Here, the floor nozzle 1 slides over the floor surface to be cleaned. Especially with long-pile carpets, the underside slides 4 ( Fig. 3 . 4 u. 6) of the floor nozzle 1 over the bottom surface, while the bottom 4 ( Fig. 3 . 4 u. 6) complained of hard floors, possibly floated by spacer bristles, over these bottom surfaces. In the illustrated embodiment, the floor nozzle 1 also supporting elements 24 in the form of wheels, which a defined distance of the bottom 4 ( Fig. 3 . 4 u. 6) to ensure the floor surfaces to be cleaned and easy handling when pushing back and forth the floor nozzle 1.

Die Figur 2 zeigt schematisch eine erfindungsgemäße Bodendüse 1 aus der Vogelperspektive. Diese Draufsicht lässt deutlich einen länglichen quer zur Bearbeitungsrichtung 5 verlaufenden Luftkanal 16 erkennen, der sich bis auf die Oberseite 17 des Gehäuses 3 erstreckt. Oberhalb des Anschlussstutzens 23 ist die Bearbeitungsrichtung 5 durch einen Doppelpfeil angedeutet.The FIG. 2 schematically shows a floor nozzle 1 of the invention from a bird's eye view. This top view clearly shows an oblong across Recognize machining direction 5 extending air duct 16, which extends to the top 17 of the housing 3. Above the connecting piece 23, the machining direction 5 is indicated by a double arrow.

In Figur 3 ist eine erfindungsgemäße Bodendüse 1 für einen Staubsauger 2 (Fig. 1) einer Seitenansicht gezeigt. Aus Gründen der Übersicht ist nur eine halbe Bodendüse 1 in den Seitenansichten gezeigt. Außerdem sind hier nicht alle gezeigten identischen Elemente mit Bezugszeichen versehen. Die hier schematisch dargestellte Bodendüse 1 weist, wie auch das Ausführungsbeispiel in Figur 2, einen länglichen quer zur Bearbeitungsrichtung 5 verlaufenden Luftkanal 16 auf, der sich zwischen den beiden Saugmündern 6, 6a befindet. Die beiden länglichen Saugmünder 6, 6a an der Unterseite 4 erstrecken sich quer zur Bearbeitungsrichtung 5 und sind parallel zu einander ausgerichtet. Die Saugmünder 6, 6a befinden sich in der dargestellten Bearbeitungsstellung an der zur Bodenfläche zugewandten Unterseite 4 des Gehäuses 3 der Bodendüse 1. Die Saugmünder 6, 6a werden durch jeweils zwei einem Saugmund 6, 6a zugeordnete Saugmundkanten 7, 7a begrenzt, wobei die Saugmundkanten 7, 7a ein Befestigungsteil 8, 8a und eine Lippe 9, 9a aufweisen. Die Saugmundkanten 7, 7a sind länglich ausgebildet und erstrecken sich parallel zu den Saugmündern 6, 6a. Das Befestigungsteil 8, 8a der Saugmundkanten 7, 7a ist an der Unterseite 4 der Bodendüse 1 befestigt, wobei die Lippen 9, 9a gegenüber den Befestigungsteilen 8, 8a beweglich ausgebildet sind. Hierzu weist jede Saugmundkante 7, 7a zwischen dem Befestigungsteil 8, 8a und der Lippe 9, 9a ein Federelement 10 auf. Dieses Federelement 10 ermöglicht eine als Doppelpfeil angedeutete Federbewegung 11 der Lippe 9, 9a senkrecht zur Bearbeitungsrichtung 5. Hierdurch können Unebenheiten in der zu reinigenden Bodenfläche ausgeglichen werden und die Saugmundkanten 7, 7a können sich hierdurch besser an wechselnde Eigenschaften der Bodenfläche anpassen. Von den jeweils einem Saugmund 6, 6a zugeordneten Saugmundkanten 7, 7a befindet sich eine Saugmundkante 7 an der Unterseite 4 in Bearbeitungsrichtung 5 vor dem Saugmund 6, 6a und eine Saugmundkante 7a an der Unterseite 4 in Bearbeitungsrichtung 5 hinter dem Saugmund 6, 6a. Wie deutlich zu erkennen ist, lassen sich die Lippen 9, 9a der Saugmundkanten 7, 7a jeweils um eine quer zur Bearbeitungsrichtung 5 verlaufende Achse 12, 12a schwenken, wobei die Schwenkachsen 12, 12a der Lippen 9, 9a strichpunktiert angedeutet sind. Im dargestellten Ausführungsbeispiel ist eine Lippenwurzel 30, 30a mit dem Federelement 10 verbunden und die Schwenkachse 12, 12a ist zwischen Lippenwurzel 30, 30a und Lippe 9, 9a angeordnet. Die Schwenkbewegung 14, 14a der Lippen 9, 9a wird ausgelöst durch eine Berührung der Saugmundkanten 7, 7a mit der zu reinigenden Bodenfläche und durch die Vorschub- und Rückzugbewegung in Bearbeitungsrichtung 5, eingeleitet durch den Benutzer. Die Schwenkbewegung 14, 14a der Lippen 9, 9a werden durch Schwenkbegrenzungsanschläge 13, 13a an der Unterseite 4 der Bodendüse 1 begrenzt. So befindet sich an jeder Saugmundkante 7, 7a ein in Bearbeitungsrichtung 5 hinter der Lippe 9a, 9a angeordneter hinterer Schwenkbegrenzungsanschlag 13 und ein in Bearbeitungsrichtung 5 vor der Lippe angeordneter vorderer Schwenkbegrenzungsanschlag 13a. Während der hintere Schwenkbegrenzungsanschlag 13 den Schwenkausschlag der Lippe 9, 9a in einer ersten Schwenkrichtung 14 begrenzt, sorgt der vordere Schwenkbegrenzungsanschlag 13a für eine Begrenzung des Schwenkausschlags der Lippe 9, 9a in einer zu der ersten Schwenkrichtung 14 entgegengesetzten zweiten Schwenkrichtung 14a. Die Schwenkrichtungen 14, 14a sind durch zwei gebogene Pfeile angedeutet. Beide einer Lippe 9, 9a zugeordneten Schwenkbegrenzungsanschläge 13, 13a stellen jeweils eine Anschlagsfläche 15, 15a hierfür bereit. Eine erste Anschlagsfläche 15 des hinteren Schwenkbegrenzungsanschlags 13 verläuft im Wesentlichen parallel zu der Lippe 9, 9a in einer Ruhestellung. Die zweite Anschlagsfläche 15a des vorderen Schwenkbegrenzungsanschlags 13a begrenzt den Schwenkwinkel der Lippe 9, 9a ausgehend von einer Position senkrecht zur Bearbeitungsrichtung 5 etwa um 55°. Bei der in Figur 3 dargestellten Situation wird Bodendüse 1 in Bearbeitungsrichtung 5 von links nach rechts bewegt. Hierdurch liegen die Lippen 9, 9a an den links von ihnen angeordneten Schwenkbegrenzungsanschlägen 13, 13a an. Die in Bewegungsrichtung 5 vor den Saugmündern 6, 6a angeordneten Lippen 9 der Saugmundkanten 7 werden durch die im Wesentlichen senkrecht zur Ruhestellung der Lippen 9 verlaufenden Anschlagsflächen 15 aufgestellt und überstreichen die Teppichfasern, wobei sie diese zur Reinigung aufbiegen. Der diesen Lippen 9 in der Bewegungsrichtung 5 nachfolgende Saugmund 6, 6a entfernt den Schmutz und Dreck aus den so aufgebogenen Teppichfasern mittels des durch das Gebläse des Staubsaugers 2 (Fig. 1) erzeugten Luftstroms. Dieser Luftstrom ist durch die gestrichelten Pfeile in Figur 3 angedeutet. Durch die Anordnung eines länglichen quer zur Bearbeitungsrichtung 5 verlaufenden Luftkanals 16 zwischen den Saugmündern 6, 6a kann eine zuverlässige Umströmung auch der inneren Saugmundkanten 7, 7a sichergestellt werden. Hierzu erstreckt sich der Luftkanal 16 von der Unterseite 4 bis zur am Gehäuse 3 gegenüberliegenden Oberseite 17. Die Lippen 9a der in Bewegungsrichtung 5 dem Saugmund 6, 6a nachfolgenden Saugmundkanten 7a sind ebenfalls an dem Schwenkbegrenzungsanschlag 13a angelegt, wobei hier der Schwenkwinkel ausgehend von einer Position senkrecht zur Bearbeitungsrichtung 5 etwa um 55° durch die Anschlagsfläche 15a begrenzt ist. Dadurch reduziert sich der Kraftaufwand für die Bewegung dieser nachfolgenden Saugmundkanten 7a über den zu reinigenden Untergrund. Bei einer Bewegung der Bodendüse 1 von rechts nach links in Bearbeitungsrichtung 5 schwenken die Lippen 9, 9a um die Schwenkachsen 12, 12a um und liegen an den derzeit nicht zum Einsatz kommenden Schwenkbegrenzungsanschlägen 13, 13a an. Durch diesen Wechsel zwischen Vorschub- und Rückzugbewegung in Bearbeitungsrichtung 5 und auch durch die vertikale Federbewegung 11 werden die Lippen 9, 9a der Saugmundkanten 7, 7a optimal für die jeweilige Bearbeitungsrichtung 5 positioniert.In FIG. 3 is a floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) a side view shown. For reasons of clarity, only a half floor nozzle 1 is shown in the side views. In addition, not all identical elements shown here are provided with reference numerals. The floor nozzle 1 shown schematically here, as well as the embodiment in FIG FIG. 2 , an elongated transverse to the processing direction 5 extending air duct 16, which is located between the two Saugmündern 6, 6a. The two elongated suction mouths 6, 6a on the underside 4 extend transversely to the machining direction 5 and are aligned parallel to each other. The suction mouths 6, 6a are located in the illustrated processing position on the bottom surface facing the bottom surface 4 of the housing 3 of the floor nozzle 1. The Saugmünder 6, 6a are each bounded by a suction mouth 6, 6a Saugmundkanten 7, 7a, wherein the Saugmundkanten , 7a have a fastening part 8, 8a and a lip 9, 9a. The suction mouth edges 7, 7a are elongate and extend parallel to the suction mouths 6, 6a. The fastening part 8, 8a of the suction mouth edges 7, 7a is fastened to the underside 4 of the floor nozzle 1, the lips 9, 9a being designed to be movable relative to the fastening parts 8, 8a. For this purpose, each suction mouth edge 7, 7a between the fastening part 8, 8a and the lip 9, 9a has a spring element 10. This spring element 10 allows a direction indicated as a double arrow spring movement 11 of the lip 9, 9a perpendicular to the machining direction 5. As a result, unevenness in the floor surface to be cleaned can be compensated and the Saugmundkanten 7, 7a can thereby better adapt to changing properties of the bottom surface. From each of a suction mouth 6, 6a associated Saugmundkanten 7, 7a is a suction mouth edge 7 on the bottom 4 in the machine direction 5 in front of the suction mouth 6, 6a and a suction mouth 7a on the bottom 4 in the machine direction 5 behind the suction mouth 6, 6a. As can be clearly seen, the lips 9, 9a of the suction mouth edges 7, 7a can each pivot about an axis 12, 12a extending transversely to the machining direction 5, wherein the pivot axes 12, 12a of the lips 9, 9a are indicated by dash-dotted lines. In the illustrated embodiment, a lip root 30, 30a is connected to the spring element 10 and the pivot axis 12, 12a is disposed between lip root 30, 30a and lip 9, 9a. The pivoting movement 14, 14a of the lips 9, 9a is triggered by a contact of the suction mouth edges 7, 7a with the floor surface to be cleaned and by the advancing and retracting movement in the machining direction 5, initiated by the user. The pivoting movement 14, 14 a of the lips 9, 9 a are limited by pivot limiting stops 13, 13 a on the bottom 4 of the floor nozzle 1. Thus, at each suction mouth edge 7, 7a, there is a working direction 5 behind the lip 9a, 9a arranged rear pivot boundary stop 13 and arranged in the machining direction 5 in front of the lip front pivot boundary stop 13a. While the rear pivot limiting stop 13 limits the pivoting deflection of the lip 9, 9a in a first pivoting direction 14, the front pivoting limiting stop 13a limits the pivoting deflection of the lip 9, 9a in a second pivoting direction 14a opposite to the first pivoting direction 14. The pivoting directions 14, 14a are indicated by two curved arrows. Both a lip 9, 9a associated pivot limiting stops 13, 13a each provide a stop surface 15, 15a for this purpose. A first abutment surface 15 of the rear pivot limiting stop 13 extends substantially parallel to the lip 9, 9a in a rest position. The second abutment surface 15a of the front pivot limiting stop 13a limits the pivot angle of the lip 9, 9a, starting from a position perpendicular to the machining direction 5 by about 55 °. At the in FIG. 3 shown situation, floor nozzle 1 is moved in the machine direction 5 from left to right. As a result, the lips 9, 9a bear against the pivot limiting stops 13, 13a arranged to the left of them. The in the direction of movement 5 in front of the suction mouths 6, 6a arranged lips 9 of Saugmundkanten 7 are placed by the substantially perpendicular to the rest position of the lips 9 stop surfaces 15 and sweep the carpet fibers, where they bend up for cleaning. The these lips 9 in the direction of movement 5 subsequent suction mouth 6, 6a removes the dirt and dirt from the so bent-up carpet fibers by means of the blower of the vacuum cleaner 2 (Fig. Fig. 1 ) generated airflow. This airflow is indicated by the dashed arrows in FIG. 3 indicated. The arrangement of an elongated transverse to the machining direction 5 extending air duct 16 between the suction mouths 6, 6a, a reliable flow around the inner Saugmundkanten 7, 7a can be ensured. For this purpose, the air channel 16 extends from the bottom 4 to the top 3 opposite the housing 3. The lips 9a of the suction mouth 6, 6a subsequent Saugmundkanten 7a in the direction of movement 5 are also applied to the pivot limiting stop 13a, in which case the pivot angle starting from a position perpendicular to the machining direction 5 is limited by about 55 ° by the abutment surface 15a. This reduces the force required for the movement of these subsequent suction mouth edges 7a over the substrate to be cleaned. During a movement of the floor nozzle 1 from right to left in the machining direction 5, the lips 9, 9a pivot about the pivot axes 12, 12a and are in contact with the currently not used pivoting limit stops 13, 13a. As a result of this change between advancing and retracting movement in the machining direction 5 and also due to the vertical spring movement 11, the lips 9, 9a of the suction mouth edges 7, 7a are optimally positioned for the respective machining direction 5.

Figur 4 zeigt eine erfindungsgemäße Bodendüse 1 für einen Staubsauger 2 (Fig. 1) einer Seitenansicht. Die hier schematisch dargestellte Bodendüse weist, wie auch das Ausführungsbeispiel in Figur 2, einen länglichen quer zur Bearbeitungsrichtung 5 verlaufenden Luftkanal 16 auf, der sich zwischen den beiden Saugmündern 6, 6a befindet. Gegenüber dem Ausführungsbeispiel in Figur 3 ist die in Figur 4 gezeigte Bodendüse 1 dahingehend verändert, dass sie an den Saugmundkanten 7, 7a zwei Begrenzungsanschläge 13 mit jeweils im Wesentlichen parallel zueinander verlaufenden Anschlagsflächen 15 aufweist, wobei zwischen den Anschlagsflächen 15 jeweils eine Lippe 9, 9a angeordnet ist. Die senkrecht zur Bearbeitungsrichtung 5 verlaufenden Anschlagsflächen 15 stützen die Lippen 9, 9a in Bearbeitungsrichtung 5 ab, so dass sie hauptsächlich eine durch die Federelemente 10 ermöglichte Federbewegung 11 senkrecht zur Bearbeitungsrichtung 5 ausführen. Eine derartig ausgestaltete Bodendüse 1 ermöglicht die Saugmundkanten 7, 7a besonders einfach und flexibel bezüglich der Höhe an die Eigenschaften des Bodenbelages anzupassen. FIG. 4 shows a floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) a side view. The floor nozzle shown schematically here, as well as the embodiment in FIG. 2 , an elongated transverse to the processing direction 5 extending air duct 16, which is located between the two Saugmündern 6, 6a. Compared to the embodiment in FIG. 3 is the in FIG. 4 Shown floor nozzle 1 changed to the effect that at the Saugmundkanten 7, 7a two limit stops 13 each having substantially parallel stop surfaces 15, wherein between the stop surfaces 15 each have a lip 9, 9a is arranged. The stop surfaces 15 running perpendicular to the machining direction 5 support the lips 9, 9a in the machining direction 5, so that they mainly execute a spring movement 11 made possible by the spring elements 10 perpendicular to the machining direction 5. Such a designed floor nozzle 1 allows the Saugmundkanten 7, 7a particularly easy and flexible with respect to the height to adapt to the properties of the flooring.

Die Figur 5 zeigt schematisch eine erfindungsgemäße Bodendüse 1 aus der Vogelperspektive. Diese Draufsicht lässt deutlich zwei längliche, quer zur Bearbeitungsrichtung 5 verlaufende Luftkanäle 16, 16a erkennen, die sich bis auf die Oberseite 17 des Gehäuses erstrecken. Oberhalb des Anschlussstutzens 23 ist die Bearbeitungsrichtung 5 durch einen Doppelpfeil angedeutet.The FIG. 5 schematically shows a floor nozzle 1 of the invention from a bird's eye view. This top view clearly shows two elongate air ducts 16, 16a running transversely to the machining direction 5, which extend up to the upper side 17 of the housing. Above the connecting piece 23, the machining direction 5 is indicated by a double arrow.

In Figur 6 ist eine erfindungsgemäße Bodendüse 1 für einen Staubsauger 2 (Fig. 1) einer Seitenansicht gezeigt. Die hier schematisch dargestellte Bodendüse 1 weist, wie auch das Ausführungsbeispiel in Figur 5, zwei längliche, quer zur Bearbeitungsrichtung 5 verlaufende Luftkanäle 16, 16a auf, die sich zwischen drei Saugmündern 6, 6a, 6b befinden. Die Saugmünder 6, 6a, 6b befinden sich in der dargestellten Bearbeitungsstellung an der zur Bodenfläche zugewandten Unterseite 4 des Gehäuses 3 der Bodendüse 1. Die Saugmünder 6, 6a, 6b werden durch jeweils zwei einem Saugmund 6, 6a, 6b zugeordnete Saugmundkanten 7, 7a begrenzt. Bezüglich der Erläuterung der Saugmundkanten 7, 7a wird auf die vorherige Beschreibung, insbesondere die Erläuterung zu Figur 3, verwiesen. Wie deutlich zu erkennen ist, lassen sich die Lippen 9, 9a der Saugmundkanten 7, 7a jeweils quer zur Bearbeitungsrichtung 5 verlaufenden Achse 12, 12a schwenken. Bei der in Figur 6 dargestellten Situation wird Bodendüse 1 in Bearbeitungsrichtung 5 von links nach rechts bewegt. Hierdurch liegen die Lippen 9, 9a an den links von ihnen angeordneten Schwenkbegrenzungsanschlägen 13, 13a an. Die in Bewegungsrichtung 5 vor den Saugmündern 6, 6a, 6b angeordneten Lippen 9 der Saugmundkanten 7 werden durch die im Wesentlichen senkrecht zur Ruhestellung der Lippen 9 verlaufenden Anschlagsflächen 15 aufgestellt und überstreichen die Teppichfasern, wobei sie diese zur Reinigung aufbiegen. Der diesen Lippen 9 in der Bewegungsrichtung nachfolgende Saugmund 6, 6a, 6b entfernt den Schmutz und Dreck aus den so aufgebogenen Teppichfasern mittels des durch das Gebläse des Staubsaugers 2 erzeugten Luftstroms. Dieser Luftstrom ist durch die gestrichelten Pfeile in Figur 6 angedeutet. Durch die Anordnung von länglichen, quer zur Bearbeitungsrichtung 5 verlaufenden Luftkanälen 16, 16a zwischen den Saugmündern 6, 6a, 6b kann eine zuverlässige Umströmung der Saugmundkanten 7, 7a sichergestellt werden. Hierzu erstrecken sich die Luftkanäle 16, 16a von der Unterseite 4 bis zur am Gehäuse 3 gegenüberliegenden Oberseite 17. Die Lippen 9a der in Bewegungsrichtung 5 den Saugmündern 6, 6a, 6b nachfolgenden Saugmundkanten 7a sind ebenfalls an den Schwenkbegrenzungsanschlägen 13a angelegt, wobei hier der Schwenkwinkel ausgehend von einer Position senkrecht zur Bearbeitungsrichtung 5 etwa um 55° durch die Anschlagsfläche 15a begrenzt ist. Dadurch reduziert sich der Kraftaufwand für die Bewegung dieser nachfolgenden Saugmundkanten 7, 7a über den zu reinigenden Untergrund. Bei einer Bewegung der Bodendüse 1 von rechts nach links in Bearbeitungsrichtung 5 schwenken die Lippen 9, 9a um die Schwenkachsen 12, 12a um und liegen an den derzeit nicht zum Einsatz kommenden Schwenkbegrenzungsanschlägen 13, 13a an. Durch diesen Wechsel zwischen Vorschub- und Rückzugbewegung in Bearbeitungsrichtung 5 und auch durch die vertikale Federbewegung 11 werden die Lippen 9, 9a der Saugmundkanten 7, 7a optimal für die jeweilige Bearbeitungsrichtung 5 positioniert.In FIG. 6 is a floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) a side view shown. The floor nozzle 1 shown schematically here, as well as the embodiment in FIG FIG. 5 , two elongated, transverse to the machine direction 5 extending air channels 16, 16a, which are located between three Saugmündern 6, 6a, 6b. The suction mouths 6, 6a, 6b are located in the illustrated processing position on the bottom surface facing the bottom surface 4 of the housing 3 of the floor nozzle 1. The Saugmünder 6, 6a, 6b are each by a suction mouth 6, 6a, 6b associated Saugmundkanten 7, 7a limited. With regard to the explanation of the Saugmundkanten 7, 7a is to the previous description, in particular the explanation to FIG. 3 , referenced. As can be clearly seen, the lips 9, 9a of the suction mouth edges 7, 7a can each pivot transverse to the machining direction 5 extending axis 12, 12a. At the in FIG. 6 shown situation, floor nozzle 1 is moved in the machine direction 5 from left to right. As a result, the lips 9, 9a bear against the pivot limiting stops 13, 13a arranged to the left of them. The lips 9 of the suction mouth edges 7 arranged in the direction of movement 5 in front of the suction mouths 6, 6a, 6b are set up by the stop surfaces 15 extending essentially perpendicular to the rest position of the lips 9 and cover the carpet fibers, bending them up for cleaning. The these lips 9 in the direction of movement subsequent suction mouth 6, 6a, 6b removed the dirt and dirt from the so bent up carpet fibers by means of the air flow generated by the blower of the vacuum cleaner 2. This airflow is indicated by the dashed arrows in FIG. 6 indicated. The arrangement of elongate, transversely to the machining direction 5 extending air channels 16, 16a between the suction mouths 6, 6a, 6b, a reliable flow around the Saugmundkanten 7, 7a can be ensured. For this purpose, the air ducts 16, 16a extend from the bottom 4 to the top 3 opposite the housing 3. The lips 9a of the suction mouths 7a following the suction mouths 6, 6a, 6b in the direction of movement 5 are also applied to the pivoting limit stops 13a, in which case the swivel angle starting from a position perpendicular to the machining direction 5 is limited by about 55 ° by the abutment surface 15a. This reduces the force required for the movement of these subsequent suction mouth edges 7, 7a over the substrate to be cleaned. During a movement of the floor nozzle 1 from right to left in the machining direction 5, the lips 9, 9a pivot about the pivot axes 12, 12a and are in contact with the currently not used pivoting limit stops 13, 13a. As a result of this change between advancing and retracting movement in the machining direction 5 and also due to the vertical spring movement 11, the lips 9, 9a of the suction mouth edges 7, 7a are optimally positioned for the respective machining direction 5.

Natürlich ist die Erfindung nicht auf die dargestellten Ausführungsbeispiele beschränkt. Weitere Ausgestaltungen sind möglich, ohne den Grundgedanken zu verlassen. So kann die Bodendüse 1 auch als Teil eines selbstfahrenden Staubsaugers ausgebildet sein.Of course, the invention is not limited to the illustrated embodiments. Further embodiments are possible without departing from the basic idea. Thus, the floor nozzle 1 may also be formed as part of a self-propelled vacuum cleaner.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
Bodendüsefloor nozzle
22
Staubsaugervacuum cleaner
33
Gehäusecasing
44
Unterseite (Gleitsohle)Bottom (sliding sole)
55
Bearbeitungsrichtungmachining direction
6 6a 6b6 6a 6b
Saugmundsaugmund
7 7a7 7a
Saugmundkantesuction mouth
8 8a8 8a
Befestigungsteilattachment portion
9 9a9 9a
Lippelip
1010
Federelementspring element
1111
Federbewegungspring movement
12 12a12 12a
Schwenkachseswivel axis
1313
erster Schwenkbegrenzungsanschlag 13a zweiter Schwenkbegrenzungsanschlagfirst pivot limit stop 13a second pivot limit stop
1414
erste Schwenkrichtung, 14a zweite Schwenkrichtungfirst pivot direction, 14a second pivot direction
15 15a15 15a
Anschlagsflächestop surface
16 16a16 16a
Luftkanalair duct
1717
Oberseitetop
1818
Saugrohrsuction tube
1919
Handgriffhandle
2020
Saugschlauchsuction
2121
Handschaltungmanual gearshift
2222
Trittschaltungenters circuit
2323
Anschlussstutzenspigot
2424
Abstützelementesupport elements
2525
Staubsaugergehäuse, StaubsaugergehäuseteileVacuum cleaner housing, vacuum cleaner housing parts
2626
Anschlusskabelconnection cable
2727
AbluftgitterAbluftgitter
2828
AbscheidesystemSeparating
2929
Staubraumdust chamber
30 30a30 30a
Lippenwurzellip root

Claims (11)

  1. Floor nozzle (1) for a vacuum cleaner (2) for cleaning and caring for floor surfaces, comprising a housing (3) having a lower face (4) which faces the floor surface when in a treatment position and on which an elongate suction mouth (6) is arranged that extends transversely to the treatment direction (5), the suction mouth (6) being delimited by means of an associated suction mouth edge (7), the suction mouth edge (7) having a fastening part (8) and a lip (9), the fastening part (8) being fastened to the lower face (4) and the lip (9) being designed to be movable relative to the fastening part (8), the suction mouth edge (7) having at least one spring element (10) between the fastening part (8) and the lip (9), the spring element (10) allowing a vertical spring movement (11) of the lip or strip (9) perpendicular to the treatment direction (5), characterised in that a plurality of elongate suction mouths (6, 6a, 6b) which extend transversely to the treatment direction (5) and are aligned in parallel with one another are arranged on the lower face (4), said suction mouths (6, 6a, 6b) being delimited by at least one suction mouth edge (7, 7a).
  2. Floor nozzle (1) according to claim 1, characterised in that a suction mouth edge (7) associated with the suction mouth (6) is arranged on the lower face (4) upstream of the suction mouth (6) in the treatment direction (5) or downstream of the suction mouth in the treatment direction (5).
  3. Floor nozzle (1) according to claim 1, characterised in that the floor nozzle (1) has at least two suction mouth edges (7, 7a) which are associated with a suction mouth (6), at least one suction mouth edge (7) being arranged on the lower face (4) upstream of the suction mouth in the treatment direction (5) and at least one suction mouth edge (7a) being arranged on the lower face (4) downstream of the suction mouth (6) in the treatment direction (5).
  4. Floor nozzle (1) according to any of claims 1 to 3, characterised in that the lip or strip (9) of at least one suction mouth edge (7, 7a) is pivotable about an axis (12, 12a) which extends transversely to the treatment direction (5).
  5. Floor nozzle (1) according to claim 4, characterised in that at least one suction mouth edge (7, 7a) has a rear pivot limiting stop (13) for limiting a pivoting deflection of the lip or strip (9, 9a) in a first pivoting direction (14), which rear pivot limiting stop is arranged downstream of the lip or strip (9, 9a) in the treatment direction (5), and/or at least one suction mouth edge (7, 7a) has a front pivot limiting stop (13a) for limiting a pivoting deflection of the lip or strip (9, 9a) in a second pivoting direction (14a) opposite to the first pivoting direction (14), which front pivot limiting stop is arranged upstream of the lip or strip (9) in the treatment direction (5).
  6. Floor nozzle (1) according to claim 5, characterised in that the first pivot limiting stop (13) provides a first stop surface (15) for the lip or strip (9, 9a) and/or in that the second pivot limiting stop (13a) provides a second stop surface (15a) for the lip or strip (9, 9a), the first stop surface (15) extending substantially parallel to the lip or strip (9, 9a) in a rest position of the lip or strip (9, 9a), and the second stop surface (15a) limiting the pivot angle of the lip or strip (9, 9a) in the direction of the second pivot limiting stop (13a) such that the pivot angle of the lip or strip (9, 9a), starting from a position perpendicular to the treatment direction (5), is between 45° and 90°, preferably approximately 70°.
  7. Floor nozzle (1) according to either claim 5 or claim 6, characterised in that a first pivot limiting stop (13) arranged between the suction mouth (6) and the lip or strip (9, 9a) has a stop surface (15) which extends substantially parallel to the lip or strip (9, 9a) in the idle position, while a second pivot limiting stop (13a) opposite the first pivot limiting stop (13) from the lip or strip (9, 9a) limits the pivot angle of the lip or strip (9, 9a) in the direction of the second pivot limiting stop (13a) such that the pivot angle of the lip or strip (9, 9a), starting from a position perpendicular to the treatment direction (5), is between 45° and 90°, preferably approximately 70°.
  8. Floor nozzle (1) according to any of claims 1 to 7, characterised in that at least one suction mouth edge (7, 7a) is elongate and extends parallel to the suction mouth (6).
  9. Floor nozzle (1) according to claim 1, characterised in that at least one elongate air channel (16, 16a) which extends transversely to the treatment direction (5) is arranged between the suction mouths (6, 6a, 6b) on the lower face (4).
  10. Floor nozzle (1) according to claim 9, characterised in that the air channel (16, 16a) extends from the lower face (4) to the opposite upper face (17) on the housing.
  11. Vacuum cleaner (2) for cleaning and caring for floor surfaces, comprising a fan for generating a vacuum for the purpose of receiving dirt by means of an air flow and a separation system (28) for cleaning the received air of the dirt, characterised by a floor nozzle (1) according to any of the preceding claims.
EP17187397.9A 2016-09-22 2017-08-23 Floor nozzle for vacuum cleaner and vacuum cleaner Active EP3298944B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016117864.0A DE102016117864A1 (en) 2016-09-22 2016-09-22 Floor nozzle for vacuum cleaners and vacuum cleaners

Publications (3)

Publication Number Publication Date
EP3298944A2 EP3298944A2 (en) 2018-03-28
EP3298944A3 EP3298944A3 (en) 2018-04-04
EP3298944B1 true EP3298944B1 (en) 2019-07-24

Family

ID=59686834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17187397.9A Active EP3298944B1 (en) 2016-09-22 2017-08-23 Floor nozzle for vacuum cleaner and vacuum cleaner

Country Status (2)

Country Link
EP (1) EP3298944B1 (en)
DE (1) DE102016117864A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932055A (en) * 1957-12-16 1960-04-12 Scott & Fetzer Co Vacuum cleaner nozzle with adjustable brush
DE2806571A1 (en) * 1978-02-16 1979-08-30 Hans Wessel VACUUM CLEANER MOUTH PIECE WITH AT LEAST ONE THREAD PICK
GB2266230B (en) * 1992-04-22 1995-11-29 Gold Star Co Nozzle head for vacuum cleaner with duster function
JP2000126094A (en) * 1998-10-22 2000-05-09 Mitsubishi Electric Corp Suction port body of vacuum cleaner
ITMI20041075A1 (en) * 2004-05-28 2004-08-28 New Ermes Europe Spa IMPROVED MECHANISM FOR HANDLING A RUBBING-LIFTING INSERTS IN A VACUUM HEAD FOR VACUUM CLEANERS
DE102007022256B4 (en) 2007-05-09 2013-07-25 Miele & Cie. Kg Nozzle for a floor care appliance

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102016117864A1 (en) 2018-03-22
EP3298944A3 (en) 2018-04-04
EP3298944A2 (en) 2018-03-28

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