EP2989953A1 - Use of a suction nozzle which can be connected to a vacuum cleaner for suction of a textile floor surface, a tiled hard floor surface and a smooth unjoined hard floor surface - Google Patents

Use of a suction nozzle which can be connected to a vacuum cleaner for suction of a textile floor surface, a tiled hard floor surface and a smooth unjoined hard floor surface Download PDF

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Publication number
EP2989953A1
EP2989953A1 EP15181548.7A EP15181548A EP2989953A1 EP 2989953 A1 EP2989953 A1 EP 2989953A1 EP 15181548 A EP15181548 A EP 15181548A EP 2989953 A1 EP2989953 A1 EP 2989953A1
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EP
European Patent Office
Prior art keywords
suction
hard
floor surface
sucking
tiled
Prior art date
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Granted
Application number
EP15181548.7A
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German (de)
French (fr)
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EP2989953B1 (en
Inventor
Klaus-Dieter Dipl.-Ing. Riehl
Horst Dipl.-Ing. Dilger
Martin Zydek
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Wessel Werk GmbH
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Wessel Werk GmbH
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Publication of EP2989953A1 publication Critical patent/EP2989953A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
    • A47L9/064—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor
    • A47L9/0653—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor with mechanical actuation, e.g. using a lever
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools

Definitions

  • the invention relates to the use of a suction nozzle which can be connected to a vacuum cleaner for vacuuming a textile floor surface, a tiled hard floor surface and an unsurfaced smooth hard floor surface.
  • the suction nozzle on which the invention is based comprises a suction head, a suction pipe connecting piece which is pivotably connected about a pivot axis to a suction channel of the suction head, a sliding sole which has at least one suction mouth bounded on the underside by suction mouth edges, at least one supporting sealing element attached to a vertically adjustable support is, and an accessible at the suction head switching element for vertical adjustment of the carrier between at least two functional positions.
  • the supporting sealing element is raised so far in a first functional position for sucking a textile floor surface that the sliding sole rests on the textile floor surface.
  • the load-bearing sealing element In a second functional position for cleaning hard floors, the load-bearing sealing element is lowered and supports the suction head on the hard floor surface, so that a gap between the suction mouth edges and the hard floor surface is established.
  • the suction channel may be connected to the suction head fixed or pivotable about a tilt axis.
  • a suction nozzle for vacuum cleaner with the described features is for example made DE 100 00 504 C2 known.
  • the known suction nozzle is universally applicable to hard floors and textile floor surfaces and additionally has a polishing plate with a soft coating.
  • the polishing plate is in a polishing position by a separate adjusting stroke extendable. In the polishing position, only the polishing plate rests on the hard floor to be cleaned, and the suction nozzle is supported on the bottom side by means of the polishing plate.
  • a roller which is provided at the rear end of the Saugrohran gleich Federationes and supports the suction nozzle when vacuuming textile floor surfaces and when vacuuming hard floors, has no contact with the ground more when the polishing plate is extended to the polishing position.
  • the DE 202 00 871 U1 also relates to a suction nozzle for vacuum cleaner with the features described above.
  • the suction nozzle has an additional and separately switchable assembly with a vertically adjustable functional element.
  • the functional element is equipped with a coordinated on an additional function bottom-side covering, which may for example consist of a slanted velor to improve the fiber intake, soft bristles for rejuvenation of carpets, a polishing felt for polishing smooth floors or hard bristles to remove stubborn dirt.
  • One out DE 10 2008 012 889 B4 known suction nozzle for vacuum cleaner has in addition to the features described above a separately switchable accessory for sucking coarse dirt.
  • a ground clearance of more than 2 mm is already adjustable between the floor area to be cleaned and a floor strip already extended for sucking smooth floors.
  • the suction head has support rollers, for example in the area of the sliding sole, which can be adjusted vertically. By extending the support rollers of the suction head can be raised to a higher level, so that adjusts such a large distance between the extended front strip and the bottom surface that coarse dirt can be run over in a forward movement of the suction nozzle and passes under the suction head, where he from the Air flow is detected and transported away through the suction channel.
  • US 3,821,831 known suction nozzle has a fitted with two sealing elements carrier, which is vertically adjustable between three functional positions. Two functional positions are provided for the suction of deep-pile and low-pile carpets. In a third functional position, the suction head can be used on hard floor surfaces, whereby a distinction between tiled hard floor surfaces and smooth unguided hard floor surfaces is not made.
  • suction nozzle for vacuum cleaner whose sealing elements can be adjusted vertically in several functional positions, is off US 4 638 526 known.
  • the known suction nozzle is universally applicable to textile floor coverings and hard floors. For use on hard floors different functional positions of the wearer are provided to absorb finely divided dirt particles and coarse / fibrous dirt particles can optimally. Furthermore, the sliding resistance should be changeable on hard floor surfaces.
  • a suction nozzle with the features described above is universally applicable to hard floors and textile floor surfaces.
  • a good cleaning result on different floor surfaces requires that a high flow speed of the intake air be established at the suction mouth edges. This condition can be easily met if the suction nozzle is operated together with a powerful suction device, which has a suction fan with an electrical power consumption of more than 1000 watts. If a suction device is used with a less efficient suction fan, this can lead to a significant deterioration of the suction properties of the nozzle.
  • the deterioration of the suction properties on hard floors is particularly pronounced when the suction nozzle, in conjunction with a low-performance suction unit, both for sucking smooth floor surfaces as well as for sucking tiled floor surfaces is used.
  • Tiled floor surfaces are hard floors that are penetrated by joints.
  • the invention has for its object to provide a universal on both textile floor surfaces as well as on hard floors suction nozzle for vacuum cleaner, which in operation with a suction device, which has a suction fan with an electrical power consumption of less than 900 watts, both on grooved or uneven hard floors as well as on smooth hard floor surfaces has good suction properties and absorbs dry, finely divided dirt particles well.
  • the object of the invention and solution of this problem is the use of a connectable to a vacuum cleaner vacuum cleaner according to claim 1.
  • the invention relates to a suction nozzle for vacuum cleaner with the features described above.
  • the suction nozzle has at least one supporting sealing element, which is fastened to a vertically adjustable support.
  • the load-bearing sealing element In the functional position for cleaning hard floors, the load-bearing sealing element is lowered and supports the suction head on the hard floor surface, so that a gap between the suction mouth edges of the hard floor surface is established.
  • the gap between the suction mouth edges and the hard bottom surface is adjustable between two default values which are set differently for a tiled floor surface and for an unsuitable smooth floor surface.
  • the default values are adapted to different types of hard floor surfaces. It is important to ensure that at each type of soil at the suction mouth edges sets a high flow rate.
  • the joints form depressions, so that the distance to the suction mouth edge is greater than the distance between them Suction mouth edge and the tile surface.
  • the flow velocity of the incoming air at the suction mouth edge in the region of a joint decreases.
  • a lesser distance of Saugmundkanten from the bottom surface is desirable in comparison to smooth floor surfaces.
  • the suction nozzle with similarly good suction properties can also be used on other uneven hard floor surfaces.
  • the vertical adjustment of the carrier may be a linear lifting movement or a pivoting movement with a vertical movement component.
  • the invention requires that the supporting sealing element for sucking hard floor surfaces on the underside of the suction nozzle further protrudes than the Saugmundkanten.
  • the gap between the suction mouth edges and the hard bottom surface is adjusted between two differently set default values, depending on the structure of the hard bottom surface.
  • the ground clearance is either adjustable by a vertical adjustment of the bearing sealing element or by a vertical adjustment of Saugmundkanten.
  • the measures described can also be combined.
  • a smaller gap between the Saugmundkanten and the hard bottom surface is set as for sucking unguarded smooth floors.
  • a first embodiment provides that at the suction nozzle only one switching element is provided and that the switching element has three functional positions for sucking a textile bottom surface, a tiled bottom surface and an unguided smooth bottom.
  • the sliding sole is arranged vertically adjustable and is provided for adjusting the sliding sole an adjusting device with a selector switch for correcting the position of the sole between a smooth bottom position and a functional position for tiled bottom surfaces.
  • the sliding sole has adjustable suction mouth edges and that an adjusting device is provided for adjusting the suction mouth edges, which has a selector switch with a first functional position for smooth floors and with a second functional position for tiled floor surfaces.
  • the adjusting device expediently on a device which sets a long travel of the selector switch in a short travel of an acting on the sliding sole or Saugmundkanten actuator.
  • the suction head switching element By actuating the accessible at the suction head switching element, which allows a vertical adjustment of the carrier between two functional positions, a switching of the suction nozzle for sucking textile floor surfaces and for sucking hard floors is possible.
  • the suction head of the suction nozzle When vacuuming hard floors, the suction head of the suction nozzle is supported on the support and sealing elements, with a gap between the suction mouth edges and the bottom surface. This gap is changed by actuation of the switching element or by actuation of a device equipped with a selector switch actuator, the change in the gap distance of the type of hard floor surface takes into account.
  • the load-bearing sealing element When vacuuming textile floor surfaces, the load-bearing sealing element is lifted so far that the sliding sole rests on the textile floor surface and immerse the suction mouth edges in the pile of the textile floor covering.
  • the suction air flows through the textile fibers of the floor covering and then flows at a high flow rate at the bottom of Saugmundkanten in the suction
  • the supporting sealing elements are fixed, which are arranged in the suction direction in front of and behind the suction mouth.
  • the supporting sealing elements may be formed in particular as a bristle strip.
  • the arrangement expediently comprises a front strip provided with bottom-side openings.
  • the front strip may be formed as a bristle strip or consists for example of a foam material, wherein on the underside notches are provided for the entry of suction.
  • the use of a rubber lip as a front strip is possible.
  • the Fig. 1 and 2 show in a sectional view and in a bottom view of a suction nozzle for vacuum cleaner.
  • a suction head 1 a Saugrohran gleich Swiss 2 which is a Pivot axis 3 is pivotally connected to a suction channel 4 of the suction head 1, a sliding sole 5, which has at least one suction side of suction mouths 6 limited suction mouth 7, an array of sealing elements 8, 9 with at least one supporting sealing element 8, which, on a vertically adjustable support 10 is attached, as well as an accessible at the suction head 1 switching element 11 for vertical adjustment of the carrier 10 between at least two functional positions A, B or C.
  • the supporting sealing element 8 is raised in a first functional position A for cleaning textile floor surfaces so far that the sliding sole. 5 rests on the textile floor surface. In a second functional position B, the supporting sealing element 8 is lowered for cleaning hard floors and supports the suction head 1 on the hard floor surface, so that a gap s between the Saugmundkanten 6 and the hard floor surface adjusts.
  • an air-permeable and / or apertured front strip 8 as a supporting sealing element and is arranged in the working direction behind the suction mouth another sealing element 9, for example in the form of a bristle strip or a flexible rubber lip.
  • the suction nozzle further comprises a rear roller 12.
  • the functional positions of the suction nozzle for sucking textile floor surfaces A and for sucking hard floors B, C are in the Fig. 3 shown schematically.
  • the sealing elements 8, 9 are raised so far that the sliding sole 5 rests on the textile floor surface.
  • the Fig. 3 shows two functional positions B, C for vacuuming hard floors.
  • the sealing elements 8, 9 are in these two Functional positions B, C on the underside of the suction nozzle further than the Saugmundkanten 6 and support the suction head 1 on the hard floor surface, so that a gap s between the Saugmundkanten 6 and the hard floor surface adjusts.
  • the gap s is adjustable between two default values for tiled floor surfaces and for uneven smooth floor surfaces.
  • FIG. 3 shows the gap height s 1 in the functional position B for sucking unguided smooth bottom surface and the gap height s 2 in the functional position C for sucking a tiled floor surface.
  • a comparative examination of the functional positions B, C shows that a smaller gap s 2 between the suction mouth edges 6 and the hard bottom surface is provided for sucking a tiled floor surface than for sucking uncovered smooth floors (gap s 1 ).
  • the suction nozzle has only one switching element 11, which has three functional positions A, B, C for sucking a textile bottom surface, a tiled bottom surface and an ungauged smooth bottom.
  • Another structural design is in the Fig. 4 shown.
  • the sliding sole 5 is arranged vertically adjustable and can be adjusted vertically by means of the switching element 11 between a functional position A for sucking textile floor surfaces and a functional position B or C for sucking hard floors.
  • an adjusting device 13 is provided with a selector switch 14 for correcting the position of the sliding sole 5 between a functional position B for smooth floors and a functional position C for tiled floor surfaces.
  • the adjusting device 13 expediently has a device which sets a long travel of the selector switch 14 in a short travel of an actuator 15 acting on the sliding sole 5. Any structural designs for the reduction of a linear travel or a travel by a rotation angle to be detected.
  • the device 16 has a ramp.
  • a toggle lever assembly or a kinematics with a gag represent advantageous constructive embodiments of the device 16.
  • the suction nozzle according to the invention can be used universally on textile floor surfaces and hard floors. It allows effective suction of smooth floor surfaces and tiled floor surfaces are similar uneven hard floor surfaces and is adapted to suction devices, which have a low-power suction fan.
  • the suction nozzles shown in the figures can be operated in particular in combination with a suction device which has a suction fan with an electrical power consumption of less than 900 watts.

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

Abstract

Verwendung einer an einen Bodenstaubsauger anschließbaren Saugdüse zum Saugen einer textilen Bodenfläche, einer gefliesten Hartbodenfläche und einer ungefugten glatten Hartbodenfläche, wobei zum Saugen der textilen Bodenfläche ein tragendes Dichtelement (8) durch Positionierung eines Schaltelements (11) in einer ersten Funktionsstellung (A) soweit angehoben wird, dass die Gleitsohle (5) der Saugdüse auf der textilen Bodenfläche aufliegt und wobei zum Saugen der Hartbodenflächen das tragende Dichtelement (8) durch Positionierung des Schaltelementes (11) in eine zweite Funktionsstellung (B, C) abgesenkt wird und den Saugkopf (1) auf der Hartbodenfläche abstützt, so dass sich ein Spalt (s) zwischen Saugmundkanten (6) und der Hartbodenfläche einstellt. Der Spalt (s) zwischen den Saugmundkanten (6) und der Hartbodenfläche ist zwischen zwei für eine geflieste Bodenfläche und für eine ungefugte Glattbodenfläche unterschiedlich festgelegten Vorgabewerten verstellbar. Erfindungsgemäß wird zum Saugen einer gefliesten Hartbodenfläche durch eine Vertikalverstellung des tragenden Dichtelements (8) und/oder der Saugmundkanten (6) ein kleinerer Spalt (s) zwischen den Saugmundkanten (6) und der Hartbodenfläche eingestellt als zum Saugen eines ungefugten Glattbodens.Use of a suction nozzle connectable to a vacuum cleaner for vacuuming a textile bottom surface, a tiled hard bottom surface and an unguided smooth hard bottom surface, wherein for sucking the textile bottom surface a supporting sealing element (8) by positioning a switching element (11) in a first functional position (A) raised so far is that the sliding sole (5) of the suction nozzle rests on the textile bottom surface and wherein for sucking the hard bottom surfaces, the supporting sealing element (8) is lowered by positioning the switching element (11) in a second functional position (B, C) and the suction head (1 ) is supported on the hard floor surface, so that a gap (s) between Saugmundkanten (6) and the hard floor surface adjusts. The gap (s) between the suction mouth edges (6) and the hard bottom surface is adjustable between two different default values for a tiled bottom surface and for an unsightly smooth bottom surface. According to the invention, a smaller gap (s) between the Saugmundkanten (6) and the hard bottom surface is set for sucking a tiled hard floor surface by a vertical adjustment of the supporting sealing element (8) and / or the Saugmundkanten (6) than for sucking an unguided smooth floor.

Description

Die Erfindung betrifft die Verwendung einer an einen Bodenstaubsauger anschließbaren Saugdüse zum Saugen einer textilen Bodenfläche, einer gefliesten Hartbodenfläche und einer ungefugten glatten Hartbodenfläche.The invention relates to the use of a suction nozzle which can be connected to a vacuum cleaner for vacuuming a textile floor surface, a tiled hard floor surface and an unsurfaced smooth hard floor surface.

Die der Erfindung zugrundeliegende Saugdüse umfasst einen Saugkopf, ein Saugrohranschlussstück, welches um eine Schwenkachse an einen Saugkanal des Saugkopfes schwenkbeweglich angeschlossen ist, eine Gleitsohle, die mindestens einen unterseitig von Saugmundkanten begrenzten Saugmund aufweist, zumindest ein tragendes Dichtelement, das an einem vertikal verstellbaren Träger befestigt ist, und ein am Saugkopf zugängliches Schaltelement zur Vertikalverstellung des Trägers zwischen zumindest zwei Funktionsstellungen. Das tragende Dichtelement ist in einer ersten Funktionsstellung zum Saugen einer textilen Bodenfläche so weit angehoben, dass die Gleitsohle auf der textilen Bodenfläche aufliegt. In einer zweiten Funktionsstellung zum Reinigen von Hartböden ist das tragende Dichtelement abgesenkt und stützt den Saugkopf auf der Hartbodenfläche ab, so dass sich ein Spalt zwischen den Saugmundekanten und der Hartbodenfläche einstellt. Der Saugkanal kann mit dem Saugkopf fest oder um eine Kippachse schwenkbeweglich verbunden sein.The suction nozzle on which the invention is based comprises a suction head, a suction pipe connecting piece which is pivotably connected about a pivot axis to a suction channel of the suction head, a sliding sole which has at least one suction mouth bounded on the underside by suction mouth edges, at least one supporting sealing element attached to a vertically adjustable support is, and an accessible at the suction head switching element for vertical adjustment of the carrier between at least two functional positions. The supporting sealing element is raised so far in a first functional position for sucking a textile floor surface that the sliding sole rests on the textile floor surface. In a second functional position for cleaning hard floors, the load-bearing sealing element is lowered and supports the suction head on the hard floor surface, so that a gap between the suction mouth edges and the hard floor surface is established. The suction channel may be connected to the suction head fixed or pivotable about a tilt axis.

Eine Saugdüse für Bodenstaubsauger mit den beschriebenen Merkmalen ist beispielsweise aus DE 100 00 504 C2 bekannt. Die bekannte Saugdüse ist universell auf Hartböden und textilen Bodenflächen einsetzbar und weist zusätzlich eine Polierplatte mit einem weichen Belag auf. Zur Bearbeitung von Glattböden ist die Polierplatte durch einen separaten Stellhub in eine Polierstellung ausfahrbar. In der Polierstellung liegt nur die Polierplatte auf dem zu reinigenden Hartboden auf und ist die Saugdüse mittels der Polierplatte bodenseitig abgestützt. Eine Laufrolle, die am rückwärtigen Ende des Saugrohranschlussstückes vorgesehen ist und die Saugdüse beim Saugen textiler Bodenflächen und beim Saugen von Hartböden abstützt, hat keinen Bodenkontakt mehr, wenn die Polierplatte in die Polierstellung ausgefahren ist.A suction nozzle for vacuum cleaner with the described features is for example made DE 100 00 504 C2 known. The known suction nozzle is universally applicable to hard floors and textile floor surfaces and additionally has a polishing plate with a soft coating. For processing smooth floors, the polishing plate is in a polishing position by a separate adjusting stroke extendable. In the polishing position, only the polishing plate rests on the hard floor to be cleaned, and the suction nozzle is supported on the bottom side by means of the polishing plate. A roller, which is provided at the rear end of the Saugrohranschlussstückes and supports the suction nozzle when vacuuming textile floor surfaces and when vacuuming hard floors, has no contact with the ground more when the polishing plate is extended to the polishing position.

Die DE 202 00 871 U1 betrifft ebenfalls eine Saugdüse für Bodenstaubsauger mit den eingangs beschriebenen Merkmalen. Die Saugdüse weist eine zusätzliche und separat schaltbare Baugruppe mit einem vertikal verstellbaren Funktionselement auf. Das Funktionselement ist mit einem auf eine Zusatzfunktion abgestimmten bodenseitigen Belag ausgestattet, der beispielsweise aus einem Schrägvelours zur Verbesserung der Faseraufnahme, weichen Borsten zur Florerfrischung von Teppichen, einem Polierfilz zum Polieren von Glattböden oder harten Borsten zur Entfernung von festsitzendem Schmutz bestehen kann.The DE 202 00 871 U1 also relates to a suction nozzle for vacuum cleaner with the features described above. The suction nozzle has an additional and separately switchable assembly with a vertically adjustable functional element. The functional element is equipped with a coordinated on an additional function bottom-side covering, which may for example consist of a slanted velor to improve the fiber intake, soft bristles for rejuvenation of carpets, a polishing felt for polishing smooth floors or hard bristles to remove stubborn dirt.

Eine aus DE 10 2008 012 889 B4 bekannte Saugdüse für Bodenstaubsauger weist neben den eingangs beschriebenen Merkmalen eine separat schaltbare Zusatzeinrichtung zum Saugen von Grobschmutz auf. Mittels dieser Zusatzeinrichtung ist ein zwischen der zu reinigenden Bodenfläche und einem zum Saugen glatter Böden bereits ausgefahrenen Frontstreifen ein Bodenabstand von mehr als 2 mm einstellbar. Der Saugkopf weist beispielsweise im Bereich der Gleitsohle Stützrollen auf, die vertikal verstellt werden können. Durch Ausfahren der Stützrollen ist der Saugkopf auf ein höheres Niveau anhebbar, so dass sich zwischen dem ausgefahrenen Frontstreifen und der Bodenfläche ein so großer Abstand einstellt, dass grober Schmutz bei einer Vorwärtsbewegung der Saugdüse überfahren werden kann und unter den Saugkopf gelangt, wo er von der Luftströmung erfasst und durch den Saugkanal abtransportiert wird.One out DE 10 2008 012 889 B4 known suction nozzle for vacuum cleaner has in addition to the features described above a separately switchable accessory for sucking coarse dirt. By means of this additional device, a ground clearance of more than 2 mm is already adjustable between the floor area to be cleaned and a floor strip already extended for sucking smooth floors. The suction head has support rollers, for example in the area of the sliding sole, which can be adjusted vertically. By extending the support rollers of the suction head can be raised to a higher level, so that adjusts such a large distance between the extended front strip and the bottom surface that coarse dirt can be run over in a forward movement of the suction nozzle and passes under the suction head, where he from the Air flow is detected and transported away through the suction channel.

Eine aus US 3 821 831 bekannte Saugdüse weist einen mit zwei Dichtungselementen bestückten Träger auf, welcher zwischen drei Funktionsstellungen vertikal verstellbar ist. Zwei Funktionsstellungen sind zum Saugen hochfloriger und niedrigfloriger Teppichbeläge vorgesehen. In einer dritten Funktionsstellung kann der Saugkopf auf Hartbodenflächen eingesetzt werden, wobei eine Unterscheidung zwischen gefliesten Hartbodenflächen und glatten ungefugten Hartbodenflächen nicht gemacht wird.One out US 3,821,831 known suction nozzle has a fitted with two sealing elements carrier, which is vertically adjustable between three functional positions. Two functional positions are provided for the suction of deep-pile and low-pile carpets. In a third functional position, the suction head can be used on hard floor surfaces, whereby a distinction between tiled hard floor surfaces and smooth unguided hard floor surfaces is not made.

Eine weitere Saugdüse für Bodenstaubsauger, deren Dichtungselemente in mehreren Funktionsstellungen vertikal verstellt werden kann, ist aus US 4 638 526 bekannt. Die bekannte Saugdüse ist universell auf textilen Belägen und Hartböden einsetzbar. Für den Einsatz auf Hartböden sind unterschiedliche Funktionsstellungen des Trägers vorgesehen, um feinteilige Schmutzpartikel und grobe / faserförmige Schmutzpartikel optimal aufnehmen zu können. Ferner soll der Gleitwiderstand auf Hartbodenflächen veränderbar sein.Another suction nozzle for vacuum cleaner, whose sealing elements can be adjusted vertically in several functional positions, is off US 4 638 526 known. The known suction nozzle is universally applicable to textile floor coverings and hard floors. For use on hard floors different functional positions of the wearer are provided to absorb finely divided dirt particles and coarse / fibrous dirt particles can optimally. Furthermore, the sliding resistance should be changeable on hard floor surfaces.

Eine Saugdüse mit den eingangs beschriebenen Merkmalen ist universell auf Hartböden und textilen Bodenflächen einsetzbar. Ein gutes Reinigungsergebnis auf unterschiedlichen Bodenflächen setzt allerdings voraus, dass sich an den Saugmundkanten eine hohe Strömungsgeschwindigkeit der angesaugten Luft einstellt. Diese Bedingung lässt sich unproblematisch einhalten, wenn die Saugdüse zusammen mit einem leistungsstarken Sauggerät betrieben wird, welches ein Sauggebläse mit einer elektrischen Leistungsaufnahme von mehr als 1000 Watt aufweist. Wenn ein Sauggerät mit einem leistungsschwächeren Sauggebläse eingesetzt wird, kann dies zu einer signifikanten Verschlechterung der Saugeigenschaften der Düse führen. Besonders ausgeprägt ist die Verschlechterung der Saugeigenschaften auf Hartböden, wenn die Saugdüse in Verbindung mit einem leistungsschwachen Sauggerät sowohl zum Saugen von glatten Bodenflächen als auch zum Saugen von gefliesten Bodenflächen eingesetzt wird. Unter gefliesten Bodenflächen werden Hartböden verstanden, die von Fugen durchsetzt sind.A suction nozzle with the features described above is universally applicable to hard floors and textile floor surfaces. However, a good cleaning result on different floor surfaces requires that a high flow speed of the intake air be established at the suction mouth edges. This condition can be easily met if the suction nozzle is operated together with a powerful suction device, which has a suction fan with an electrical power consumption of more than 1000 watts. If a suction device is used with a less efficient suction fan, this can lead to a significant deterioration of the suction properties of the nozzle. The deterioration of the suction properties on hard floors is particularly pronounced when the suction nozzle, in conjunction with a low-performance suction unit, both for sucking smooth floor surfaces as well as for sucking tiled floor surfaces is used. Tiled floor surfaces are hard floors that are penetrated by joints.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine sowohl auf textilen Bodenflächen als auch auf Hartböden universell einsetzbare Saugdüse für Bodenstaubsauger anzugeben, die beim Betrieb mit einem Sauggerät, welches ein Sauggebläse mit einer elektrischen Leistungsaufnahme von weniger als 900 Watt aufweist, sowohl auf gefugten oder unebenen Hartböden als auch auf glatten Hartbodenflächen gute Saugeigenschaften aufweist und trockene, feinteilige Schmutzpartikel gut aufnimmt.Against this background, the invention has for its object to provide a universal on both textile floor surfaces as well as on hard floors suction nozzle for vacuum cleaner, which in operation with a suction device, which has a suction fan with an electrical power consumption of less than 900 watts, both on grooved or uneven hard floors as well as on smooth hard floor surfaces has good suction properties and absorbs dry, finely divided dirt particles well.

Gegenstand der Erfindung und Lösung dieser Aufgabe ist die Verwendung einer an einen Bodenstaubsauger anschließbaren Saugdüse nach Anspruch 1.The object of the invention and solution of this problem is the use of a connectable to a vacuum cleaner vacuum cleaner according to claim 1.

Die Erfindung bezieht sich auf eine Saugdüse für Bodenstaubsauger mit den eingangs beschriebenen Merkmalen. Die Saugdüse weist zumindest ein tragendes Dichtelement auf, das an einem vertikal verstellbaren Träger befestigt ist. In der Funktionsstellung zum Reinigen von Hartböden ist das tragende Dichtelement abgesenkt und stützt den Saugkopf auf der Hartbodenfläche ab, so dass sich ein Spalt zwischen den Saugmundkanten der Hartbodenfläche einstellt. Erfindungsgemäß ist der Spalt zwischen den Saugmundkanten und der Hartbodenfläche zwischen zwei für eine geflieste Bodenfläche und für eine ungefugte glatte Bodenfläche unterschiedlich festgelegten Vorgabewerten verstellbar. Die Vorgabewerte sind an unterschiedliche Arten von Hartbodenflächen angepasst. Dabei ist darauf zu achten, dass sich bei jedem Bodentyp an den Saugmundkanten eine hohe Strömungsgeschwindigkeit einstellt. Bei einer gefliesten Bodenfläche bilden die Fugen Vertiefungen, so dass der Abstand zur Saugmundkante dort größer ist als der Abstand zwischen der Saugmundkante und der Fliesenoberfläche. Dadurch sinkt die Strömungsgeschwindigkeit der einströmenden Luft an der Saugmundkante im Bereich einer Fuge. Um das Lösen von Schmutzpartikeln und das Mitführen von Schmutzpartikeln im Saugluftstrom auch im Bereich der Fugen gewährleisten zu können, ist im Vergleich zu glatten Bodenoberflächen ein geringerer Abstand der Saugmundkanten von der Bodenfläche anzustreben. In der Funktionsstellung für geflieste Bodenflächen kann die Saugdüse mit ähnlich guten Saugeigenschaften auch auf sonstigen unebenen Hartbodenflächen eingesetzt werden.The invention relates to a suction nozzle for vacuum cleaner with the features described above. The suction nozzle has at least one supporting sealing element, which is fastened to a vertically adjustable support. In the functional position for cleaning hard floors, the load-bearing sealing element is lowered and supports the suction head on the hard floor surface, so that a gap between the suction mouth edges of the hard floor surface is established. According to the invention, the gap between the suction mouth edges and the hard bottom surface is adjustable between two default values which are set differently for a tiled floor surface and for an unsuitable smooth floor surface. The default values are adapted to different types of hard floor surfaces. It is important to ensure that at each type of soil at the suction mouth edges sets a high flow rate. In the case of a tiled floor surface, the joints form depressions, so that the distance to the suction mouth edge is greater than the distance between them Suction mouth edge and the tile surface. As a result, the flow velocity of the incoming air at the suction mouth edge in the region of a joint decreases. In order to ensure the dissolution of dirt particles and the entrainment of dirt particles in the suction air flow in the joints, a lesser distance of Saugmundkanten from the bottom surface is desirable in comparison to smooth floor surfaces. In the functional position for tiled floor surfaces, the suction nozzle with similarly good suction properties can also be used on other uneven hard floor surfaces.

Die Vertikalverstellung des Trägers kann eine lineare Hubbewegung oder eine Schwenkbewegung mit einer vertikalen Bewegungskomponente sein.The vertical adjustment of the carrier may be a linear lifting movement or a pivoting movement with a vertical movement component.

Die Erfindung setzt voraus, dass das tragende Dichtelement zum Saugen von Hartbodenflächen an der Unterseite der Saugdüse weiter vorsteht als die Saugmundkanten. Der Spalt zwischen den Saugmundkanten und der Hartbodenfläche wird erfindungsgemäß zwischen zwei unterschiedlich festgelegten Vorgabewerten verstellt, und zwar in Abhängigkeit der Struktur der Hartbodenfläche. Der Bodenabstand ist entweder verstellbar durch eine Vertikalverstellung des tragenden Dichtelementes oder durch eine Vertikalverstellung der Saugmundkanten. Die beschriebenen Maßnahmen sind auch kombinierbar. Erfindungsgemäß wird zum Saugen von gefliesten Bodenflächen bzw. unebenen Hartbodenflächen durch eine Vertikalverstellung des tragenden Dichtelementes oder der Saugmundkanten ein kleinerer Spalt zwischen den Saugmundkanten und der Hartbodenfläche eingestellt als zum Saugen ungefugter Glattböden.The invention requires that the supporting sealing element for sucking hard floor surfaces on the underside of the suction nozzle further protrudes than the Saugmundkanten. According to the invention, the gap between the suction mouth edges and the hard bottom surface is adjusted between two differently set default values, depending on the structure of the hard bottom surface. The ground clearance is either adjustable by a vertical adjustment of the bearing sealing element or by a vertical adjustment of Saugmundkanten. The measures described can also be combined. According to the invention for sucking tiled floor surfaces or uneven hard floor surfaces by a vertical adjustment of the supporting sealing element or Saugmundkanten a smaller gap between the Saugmundkanten and the hard bottom surface is set as for sucking unguarded smooth floors.

Für die konstruktive Ausgestaltung der erfindungsgemäßen Saugdüse ergibt sich eine Mehrzahl von Möglichkeiten. Eine erste Ausführungsform sieht vor, dass an der Saugdüse nur ein Schaltelement vorgesehen ist und dass das Schaltelement drei Funktionsstellungen zum Saugen einer textilen Bodenfläche, einer gefliesten Bodenfläche und eines ungefugten Glattbodens aufweist. Gemäß einer zweiten bevorzugten Ausführung der Erfindung ist die Gleitsohle vertikal verstellbar angeordnet und ist zur Verstellung der Gleitsohle eine Stellvorrichtung mit einem Wahlschalter zur Positionskorrektur der Gleitsohle zwischen einer Glattbodenstellung und einer Funktionsstellung für geflieste Bodenflächen vorgesehen. Ferner besteht die Möglichkeit, dass die Gleitsohle verstellbare Saugmundkanten aufweist und dass zur Verstellung der Saugmundkanten eine Stellvorrichtung vorgesehen ist, die einen Wahlschalter mit einer ersten Funktionsstellung für Glattböden und mit einer zweiten Funktionsstellung für geflieste Bodenflächen aufweist. Dabei weist die Stellvorrichtung zweckmäßig eine Einrichtung auf, welche einen langen Stellweg des Wahlschalters in einen kurzen Stellweg eines auf die Gleitsohle oder die Saugmundkanten wirkenden Stellgliedes untersetzt.For the structural design of the suction nozzle according to the invention results in a plurality of possibilities. A first embodiment provides that at the suction nozzle only one switching element is provided and that the switching element has three functional positions for sucking a textile bottom surface, a tiled bottom surface and an unguided smooth bottom. According to a second preferred embodiment of the invention, the sliding sole is arranged vertically adjustable and is provided for adjusting the sliding sole an adjusting device with a selector switch for correcting the position of the sole between a smooth bottom position and a functional position for tiled bottom surfaces. Furthermore, there is the possibility that the sliding sole has adjustable suction mouth edges and that an adjusting device is provided for adjusting the suction mouth edges, which has a selector switch with a first functional position for smooth floors and with a second functional position for tiled floor surfaces. In this case, the adjusting device expediently on a device which sets a long travel of the selector switch in a short travel of an acting on the sliding sole or Saugmundkanten actuator.

Durch Betätigung des am Saugkopf zugänglichen Schaltelementes, welches eine Vertikalverstellung des Trägers zwischen zwei Funktionsstellungen ermöglicht, ist eine Umschaltung der Saugdüse zum Saugen textiler Bodenflächen und zum Saugen von Hartböden möglich. Beim Saugen von Hartböden ist der Saugkopf der Saugdüse an den Trag- und Dichtelementen abgestützt, wobei sich zwischen den Saugmundkanten und der Bodenfläche ein Spalt einstellt. Dieser Spalt wird durch Betätigung des Schaltelementes oder durch Betätigung einer mit einem Wahlschalter ausgestatteten Stellvorrichtung verändert, wobei die Änderung des Spaltabstandes der Art der Hartbodenfläche Rechnung trägt. Beim Saugen textiler Bodenflächen wird das tragende Dichtelement so weit angehoben, dass die Gleitsohle auf der textilen Bodenfläche aufliegt und die Saugmundkanten in den Flor des textilen Bodenbelages eintauchen. Die Saugluft durchströmt die textilen Fasern des Bodenbelages und strömt dann mit hoher Strömungsgeschwindigkeit an der Unterseite der Saugmundkanten in den Saugschlitz.By actuating the accessible at the suction head switching element, which allows a vertical adjustment of the carrier between two functional positions, a switching of the suction nozzle for sucking textile floor surfaces and for sucking hard floors is possible. When vacuuming hard floors, the suction head of the suction nozzle is supported on the support and sealing elements, with a gap between the suction mouth edges and the bottom surface. This gap is changed by actuation of the switching element or by actuation of a device equipped with a selector switch actuator, the change in the gap distance of the type of hard floor surface takes into account. When vacuuming textile floor surfaces, the load-bearing sealing element is lifted so far that the sliding sole rests on the textile floor surface and immerse the suction mouth edges in the pile of the textile floor covering. The suction air flows through the textile fibers of the floor covering and then flows at a high flow rate at the bottom of Saugmundkanten in the suction slot.

Am Träger sind vorzugsweise zwei tragende Dichtelemente befestigt, die in Saugrichtung vor und hinter dem Saugmund angeordnet sind. Die tragenden Dichtelemente können insbesondere als Borstenstreifen ausgebildet sein. Die Anordnung umfasst zweckmäßig einen mit bodenseitigen Öffnungen versehenen Frontstreifen. Der Frontstreifen kann als Borstenstreifen ausgebildet sein oder besteht beispielsweise aus einem Schaumstoffmaterial, wobei an der Unterseite Ausklinkungen für den Eintritt von Saugluft vorgesehen sind. Auch die Verwendung einer Gummilippe als Frontstreifen ist möglich.On the support preferably two supporting sealing elements are fixed, which are arranged in the suction direction in front of and behind the suction mouth. The supporting sealing elements may be formed in particular as a bristle strip. The arrangement expediently comprises a front strip provided with bottom-side openings. The front strip may be formed as a bristle strip or consists for example of a foam material, wherein on the underside notches are provided for the entry of suction. The use of a rubber lip as a front strip is possible.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen schematisch

Fig. 1
einen Schnitt durch eine erfindungsgemäße Saugdüse,
Fig. 2
eine Unteransicht der in Fig. 1 dargestellten Saugdüse,
Fig. 3
einen Ausschnitt aus der Saugdüse in drei Funktionsstellungen A, B und C, und
Fig. 4
eine konstruktive Ausgestaltung der Saugdüse in einer frontseitigen Ansicht.
In the following the invention will be explained with reference to a drawing showing only one embodiment. It show schematically
Fig. 1
a section through a suction nozzle according to the invention,
Fig. 2
a bottom view of in Fig. 1 illustrated suction nozzle,
Fig. 3
a section of the suction nozzle in three functional positions A, B and C, and
Fig. 4
a structural design of the suction nozzle in a front view.

Die Fig. 1 und 2 zeigen in einer Schnittdarstellung sowie in einer Unteransicht eine Saugdüse für Bodenstaubsauger. Zum grundsätzlichen Aufbau der Saugdüse gehören ein Saugkopf 1, ein Saugrohranschlussstück 2, welches um eine Schwenkachse 3 schwenkbeweglich an einen Saugkanal 4 des Saugkopfes 1 angeschlossen ist, eine Gleitsohle 5, die mindestens einen unterseitig von Saugmundkanten 6 begrenzten Saugmund 7 aufweist, eine Anordnung von Dichtelementen 8, 9 mit zumindest einem tragenden Dichtelement 8, welches, an einem vertikal verstellbaren Träger 10 befestigt ist, sowie ein am Saugkopf 1 zugängliches Schaltelement 11 zur Vertikalverstellung des Trägers 10 zwischen zumindest zwei Funktionsstellungen A, B oder C. Das tragende Dichtelement 8 ist in einer ersten Funktionsstellung A zum Reinigen von textilen Bodenflächen so weit angehoben, dass die Gleitsohle 5 auf der textilen Bodenfläche aufliegt. In einer zweiten Funktionsstellung B ist das tragende Dichtelement 8 zum Reinigen von Hartböden abgesenkt und stützt den Saugkopf 1 an der Hartbodenfläche ab, so dass sich ein Spalt s zwischen den Saugmundkanten 6 und der Hartbodenfläche einstellt. Im Ausführungsbeispiel ist an dem Träger 10 in Saugrichtung vor dem Saugmund ein luftdurchlässiger und/oder mit Öffnungen versehener Frontstreifen 8 als tragendes Dichtelement und ist in Arbeitsrichtung hinter dem Saugmund ein weiteres Dichtelement 9 angeordnet, z.B. in Form eines Borstenstreifens oder einer flexiblen Gummilippe. An den Schmalseiten des Saugkopfes kann ebenfalls jeweils ein Dichtelement vorgesehen sein, welches den Bereich zwischen dem Frontstreifen 8 und dem Dichtlement 9 an der Unterseite des Saugkopfes ganz oder teilweise abdichtet und einen Lufteintritt an den Enden des Saugmundes reduziert. Im Ausführungsbeispiel weist die Saugdüse ferner eine rückwärtige Laufrolle 12 auf.The Fig. 1 and 2 show in a sectional view and in a bottom view of a suction nozzle for vacuum cleaner. For the basic structure of the suction nozzle includes a suction head 1, a Saugrohranschlussstück 2, which is a Pivot axis 3 is pivotally connected to a suction channel 4 of the suction head 1, a sliding sole 5, which has at least one suction side of suction mouths 6 limited suction mouth 7, an array of sealing elements 8, 9 with at least one supporting sealing element 8, which, on a vertically adjustable support 10 is attached, as well as an accessible at the suction head 1 switching element 11 for vertical adjustment of the carrier 10 between at least two functional positions A, B or C. The supporting sealing element 8 is raised in a first functional position A for cleaning textile floor surfaces so far that the sliding sole. 5 rests on the textile floor surface. In a second functional position B, the supporting sealing element 8 is lowered for cleaning hard floors and supports the suction head 1 on the hard floor surface, so that a gap s between the Saugmundkanten 6 and the hard floor surface adjusts. In the embodiment, on the support 10 in the suction direction in front of the suction mouth an air-permeable and / or apertured front strip 8 as a supporting sealing element and is arranged in the working direction behind the suction mouth another sealing element 9, for example in the form of a bristle strip or a flexible rubber lip. On the narrow sides of the suction head can also be provided in each case a sealing element which completely or partially seals the area between the front strip 8 and the sealing element 9 on the underside of the suction head and reduces an air inlet at the ends of the suction mouth. In the exemplary embodiment, the suction nozzle further comprises a rear roller 12.

Die Funktionsstellungen der Saugdüse zum Saugen von textilen Bodenflächen A und zum Saugen von Hartböden B, C sind in der Fig. 3 schematisch dargestellt. In der Funktionsstellung A zum Reinigen einer textilen Bodenfläche sind die Dichtelemente 8, 9 so weit angehoben, dass die Gleitsohle 5 auf der textilen Bodenfläche aufliegt. Die Fig. 3 zeigt zwei Funktionsstellungen B, C zum Saugen von Hartböden. Die Dichtelemente 8, 9 stehen in diesen beiden Funktionsstellungen B, C an der Unterseite der Saugdüse weiter vor als die Saugmundkanten 6 und stützen den Saugkopf 1 an der Hartbodenfläche ab, so dass sich ein Spalt s zwischen den Saugmundkanten 6 und der Hartbodenfläche einstellt. Der Spalt s ist zwischen zwei für geflieste Bodenflächen und für ungefugte Glattbodenflächen unterschiedlich festgelegten Vorgabewerten verstellbar. Die Fig. 3 zeigt die Spalthöhe s1 in der Funktionsstellung B zum Saugen von ungefugten Glattbodenfläche und die Spalthöhe s2 in der Funktionsstellung C zum Saugen einer gefliesten Bodenfläche. Einer vergleichenden Betrachtung der Funktionsstellungen B, C entnimmt man, dass zum Saugen einer gefliesten Bodenflächen ein kleinerer Spalt s2 zwischen den Saugmundkanten 6 und der Hartbodenfläche vorgesehen ist als zum Saugen ungefugter Glattböden (Spalt s1).The functional positions of the suction nozzle for sucking textile floor surfaces A and for sucking hard floors B, C are in the Fig. 3 shown schematically. In the functional position A for cleaning a textile floor surface, the sealing elements 8, 9 are raised so far that the sliding sole 5 rests on the textile floor surface. The Fig. 3 shows two functional positions B, C for vacuuming hard floors. The sealing elements 8, 9 are in these two Functional positions B, C on the underside of the suction nozzle further than the Saugmundkanten 6 and support the suction head 1 on the hard floor surface, so that a gap s between the Saugmundkanten 6 and the hard floor surface adjusts. The gap s is adjustable between two default values for tiled floor surfaces and for uneven smooth floor surfaces. The Fig. 3 shows the gap height s 1 in the functional position B for sucking unguided smooth bottom surface and the gap height s 2 in the functional position C for sucking a tiled floor surface. A comparative examination of the functional positions B, C shows that a smaller gap s 2 between the suction mouth edges 6 and the hard bottom surface is provided for sucking a tiled floor surface than for sucking uncovered smooth floors (gap s 1 ).

Im Rahmen der Erfindung liegt es, dass die Saugdüse nur ein Schaltelement 11 aufweist, welches drei Funktionsstellungen A, B, C zum Saugen einer textilen Bodenfläche, einer gefliesten Bodenfläche und eines ungefugten Glattbodens aufweist. Eine andere konstruktive Ausgestaltung ist in der Fig. 4 dargestellt.In the context of the invention, it is the case that the suction nozzle has only one switching element 11, which has three functional positions A, B, C for sucking a textile bottom surface, a tiled bottom surface and an ungauged smooth bottom. Another structural design is in the Fig. 4 shown.

Im Ausführungsbeispiel der Fig. 4 ist die Gleitsohle 5 vertikal verstellbar angeordnet und kann mittels des Schaltelementes 11 zwischen einer Funktionsstellung A zum Saugen von textilen Bodenflächen und einer Funktionsstellung B oder C zum Saugen von Hartböden vertikal verstellt werden. Zur weiteren Verstellung der Gleitsohle 5 ist eine Stellvorrichtung 13 mit einem Wahlschalter 14 zur Positionskorrektur der Gleitsohle 5 zwischen einer Funktionsstellung B für Glattböden und einer Funktionsstellung C für geflieste Bodenflächen vorgesehen. Die Stellvorrichtung 13 weist zweckmäßig eine Einrichtung auf, welche einen langen Stellweg des Wahlschalters 14 in einen kurzen Stellweg eines auf die Gleitsohle 5 wirkenden Stellgliedes 15 untersetzt. Beliebige konstruktive Ausgestaltungen zur Untersetzung eines linearen Stellweges oder eines Stellweges um einen Drehwinkel sollen erfasst sein. Im Ausführungsbeispiel weist die Einrichtung 16 eine Rampe auf. Auch eine Kniehebelanordnung oder eine Kinematik mit einem Knebel stellen vorteilhafte konstruktive Ausgestaltungen der Einrichtung 16 dar.In the embodiment of Fig. 4 the sliding sole 5 is arranged vertically adjustable and can be adjusted vertically by means of the switching element 11 between a functional position A for sucking textile floor surfaces and a functional position B or C for sucking hard floors. For further adjustment of the sliding sole 5, an adjusting device 13 is provided with a selector switch 14 for correcting the position of the sliding sole 5 between a functional position B for smooth floors and a functional position C for tiled floor surfaces. The adjusting device 13 expediently has a device which sets a long travel of the selector switch 14 in a short travel of an actuator 15 acting on the sliding sole 5. Any structural designs for the reduction of a linear travel or a travel by a rotation angle to be detected. In the exemplary embodiment, the device 16 has a ramp. Also, a toggle lever assembly or a kinematics with a gag represent advantageous constructive embodiments of the device 16.

Die erfindungsgemäße Saugdüse ist universell auf textilen Bodenflächen und Hartböden einsetzbar. Sie ermöglicht ein wirkungsvolles Saugen von Glattbodenflächen und von gefliesten Bodenflächen ist ähnlichen unebenen Hartbodenflächen und ist auf Sauggeräte abgestimmt, die ein leistungsschwaches Sauggebläse aufweisen. Die in den Figuren dargestellte Saugdüsen kann insbesondere in Kombination mit einem Sauggerät betrieben werden, welches ein Sauggebläse mit einer elektrischen Leistungsaufnahme von weniger als 900 Watt aufweist.The suction nozzle according to the invention can be used universally on textile floor surfaces and hard floors. It allows effective suction of smooth floor surfaces and tiled floor surfaces are similar uneven hard floor surfaces and is adapted to suction devices, which have a low-power suction fan. The suction nozzles shown in the figures can be operated in particular in combination with a suction device which has a suction fan with an electrical power consumption of less than 900 watts.

Claims (5)

Verwendung einer an einen Bodenstaubsauger anschließbaren Saugdüse mit einem Saugkopf (1), einem Saugrohranschlussstück (2), welches um eine Schwenkachse (3) an einen Saugkanal (4) des Saugkopfes (1) schwenkbeweglich angeschlossen ist, einer Gleitsohle (5), die mindestens einen unterseitig von Saugmundkanten (6) begrenzten Saugmund (7) aufweist, zumindest einem tragenden Dichtelement (8), das an einem vertikal verstellbaren Träger (10) befestigt ist und einem am Saugkopf (1) zugänglichen Schaltelement (11) zur Vertikalverstellung des Trägers (10) zwischen zumindest zwei Funktionsstellungen (A, B oder C), zum Saugen einer textilen Bodenfläche, einer gefliesten Hartbodenfläche und einer ungefugten glatten Hartbodenfläche, wobei zum Saugen der textilen Bodenfläche das tragende Dichtelement (8) durch Positionierung des Schaltelements (11) in einer ersten Funktionsstellung (A) soweit angehoben wird, dass die Gleitsohle (5) auf der textilen Bodenfläche aufliegt, wobei zum Saugen der Hartbodenflächen das tragende Dichtelement (8) durch Positionierung des Schaltelementes (11) in eine zweite Funktionsstellung (B, C) abgesenkt wird und den Saugkopf (1) auf der Hartbodenfläche abstützt, so dass sich ein Spalt (s) zwischen den Saugmundkanten (6) und der Hartbodenfläche einstellt, wobei der Spalt (s) zwischen den Saugmundkanten (6) und der Hartbodenfläche zwischen zwei für eine geflieste Bodenfläche und für eine ungefugte Glattbodenfläche unterschiedlich festgelegten Vorgabewerten verstellbar ist und wobei zum Saugen einer gefliesten Hartbodenfläche durch eine Vertikalverstellung des tragenden Dichtelements (8) und/oder der Saugmundkanten (6) ein kleinerer Spalt (s) zwischen den Saugmundkanten (6) und der Hartbodenfläche eingestellt wird als zum Saugen eines ungefugten Glattbodens.Use of a connectable to a vacuum cleaner with suction nozzle a suction head (1), a suction pipe connecting piece (2), which is pivotably connected about a pivot axis (3) to a suction channel (4) of the suction head (1), a sliding sole (5), which has at least one suction mouth (7) delimited on the underside by suction mouth edges (6), at least one supporting sealing element (8) which is fastened to a vertically adjustable support (10) and a switching element (11) accessible to the suction head (1) for vertical adjustment of the carrier (10) between at least two functional positions (A, B or C), for sucking a textile floor surface, a tiled hard floor surface and an unguided smooth hard floor surface, wherein for sucking the textile bottom surface, the supporting sealing element (8) by positioning the switching element (11) in a first functional position (A) is raised so far that the sliding sole (5 rests on the textile bottom surface, wherein for sucking the hard bottom surfaces, the supporting sealing element (8) is lowered by positioning the switching element (11) in a second functional position (B, C) and the suction head (1) supported on the hard floor surface, so that adjusts a gap (s) between the suction mouth edges (6) and the hard bottom surface, the gap (s) between the suction mouth edges (6) and the Hard bottom surface between two for a tiled bottom surface and an unsuitable smooth bottom surface differently set default values is adjustable and wherein for sucking a tiled hard floor surface by a vertical adjustment of the supporting sealing element (8) and / or Saugmundkanten (6) a smaller gap (s) between the Saugmundkanten (6) and the hard bottom surface is adjusted as for sucking an unsealed smooth floor. Verwendung der Saugdüse nach Anspruch 1, wobei das Schaltelement (11) drei Funktionsstellungen (A, B, C) zum Saugen einer textilen Bodenfläche, einer gefliesten Bodenfläche oder eines ungefugten Glattbodens aufweist.Use of the suction nozzle according to claim 1, wherein the switching element (11) has three functional positions (A, B, C) for sucking a textile bottom surface, a tiled bottom surface or an unguided smooth bottom. Verwendung der Saugdüse nach Anspruch 1, wobei die Gleitsohle (5) vertikal verstellbar angeordnet ist und mittels einer Stellvorrichtung (13), die einen Wahlschalter (14) zur Positionseinstellung der Gleitsohle (5) aufweist, zwischen einer Funktionsstellung (B) für Glattböden und einer Funktionsstellung (C) für geflieste Bodenflächen verstellt wird.Use of the suction nozzle according to claim 1, wherein the sliding sole (5) is arranged vertically adjustable and by means of an adjusting device (13) having a selector switch (14) for position adjustment of the sliding sole (5), between a functional position (B) for smooth floors and a Function position (C) is adjusted for tiled floor surfaces. Verwendung einer Saugdüse nach Anspruch 3, wobei die Stellvorrichtung (13) eine Einrichtung (16) aufweist, welche einen langen Stellweg des Wahlschalters (14) in einen kurzen Stellweg eines auf die Gleitsohle (5) wirkenden Stellgliedes (15) untersetzt.Use of a suction nozzle according to claim 3, wherein the adjusting device (13) has a device (16), which sets a long travel of the selector switch (14) in a short travel of an acting on the sliding sole (5) actuator (15). Verwendung einer Saugdüse nach einem der Ansprüche 1 bis 4, wobei an dem Träger (1) zwei tragende Dichtelemente (8, 9) befestigt sind, die in Saugrichtung vor und hinter dem Saugmund (7) angeordnet sind.Use of a suction nozzle according to one of claims 1 to 4, wherein on the support (1) has two supporting sealing elements (8, 9) are fixed, which are arranged in the suction direction in front of and behind the suction mouth (7).
EP15181548.7A 2014-08-25 2015-08-19 Use of a suction nozzle which can be connected to a vacuum cleaner for suction of a textile floor surface, a tiled hard floor surface and a smooth unjoined hard floor surface Active EP2989953B1 (en)

Applications Claiming Priority (1)

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DE102014112141.4A DE102014112141B4 (en) 2014-08-25 2014-08-25 Suction nozzle for vacuum cleaner

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EP2989953A1 true EP2989953A1 (en) 2016-03-02
EP2989953B1 EP2989953B1 (en) 2020-02-12

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Also Published As

Publication number Publication date
CN105455730A (en) 2016-04-06
EP2989953B1 (en) 2020-02-12
CN105455730B (en) 2019-06-18
DE102014112141B4 (en) 2018-04-26
DE102014112141A1 (en) 2016-02-25

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