EP2659817A2 - Buse pour un appareil de nettoyage du sol - Google Patents

Buse pour un appareil de nettoyage du sol Download PDF

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Publication number
EP2659817A2
EP2659817A2 EP13165872.6A EP13165872A EP2659817A2 EP 2659817 A2 EP2659817 A2 EP 2659817A2 EP 13165872 A EP13165872 A EP 13165872A EP 2659817 A2 EP2659817 A2 EP 2659817A2
Authority
EP
European Patent Office
Prior art keywords
floor cleaning
cleaning roller
nozzle
roller
cylindrical body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13165872.6A
Other languages
German (de)
English (en)
Other versions
EP2659817B1 (fr
EP2659817A3 (fr
Inventor
Michael Back
Thomas GÖPPNER
Thomas Rissmann
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2659817A2 publication Critical patent/EP2659817A2/fr
Publication of EP2659817A3 publication Critical patent/EP2659817A3/fr
Application granted granted Critical
Publication of EP2659817B1 publication Critical patent/EP2659817B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0455—Bearing means therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0416—Driving means for the brushes or agitators driven by fluid pressure, e.g. by means of an air turbine

Definitions

  • Embodiments relate to a nozzle for a floor cleaning device, such as a vacuum cleaner.
  • nozzle for example, in a vacuum cleaner, but also in other floor cleaning devices in which a cleaning effect is based at least partially on a suction or blowing off by means of an air or gas flow, appropriate brush rollers used in their nozzles.
  • nozzle for example, in a vacuum cleaner, but also in other floor cleaning equipment, an essay, which is brought into contact with the soil to be cleaned and over which the corresponding air or gas stream is passed.
  • nozzles are also referred to as suction cups, vacuum cleaner nozzles or cleaning heads.
  • nozzles have such brush rollers, they can be set in rotation by means of different approaches.
  • a brush mounted in the region of the nozzle electric motor, the brush roller directly or indirectly, for example via a transmission driven.
  • the brush roller can also be driven solely by the relative movement of the nozzle to the ground to be cleaned.
  • turbo nozzles are used in which the brush roller is rotated by means of a turbine and the already present air or gas flow in rotation.
  • the WO 2011/107766 A1 describes such a cleaning head for a vacuum cleaner, in which a brush is accessible.
  • the DE 198 20 628 C1 refers to a sweeper with a rotating, drivable brush roller, which is rotatably mounted at both ends in a frame.
  • the drive is in this case via a at one end with its teeth in Mit Converseaus fundamentalungen in the brush roller engaging gear, which forms the storage of the relevant brush roller in this end.
  • the DE 41 39 693 A1 Finally refers to a vacuum cleaner mouthpiece with a replaceable arranged and rotatably mounted by means of an axle or shaft roller body.
  • An easy replacement of the roller body is made possible in that the axle or shaft mounted at least on one side in a semicircular recess of a housing-fixed bearing element and the axle or shaft end is held in the recess by a releasable locking element.
  • a nozzle according to an exemplary embodiment of a floor cleaning appliance for example a vacuum cleaner, comprises a nozzle housing, a floor cleaning roller which can be removed and reinserted into the nozzle housing and which is rotatable about an axis of rotation with respect to the nozzle housing during operation of the floor cleaning appliance.
  • a nozzle according to an embodiment further comprises an at least partially substantially cylindrical body which extends at least during operation of the floor cleaning device substantially parallel to the axis of rotation, wherein the floor cleaning roller and the cylindrical body are formed such that the floor cleaning roller during removal and during Insertion on the cylindrical body can be applied, and wherein the cylindrical body extends over at least 25% of a width of the nozzle housing.
  • a nozzle according to one embodiment is based on the finding that an improvement of a removal or insertion operation of the floor cleaning roller into the nozzle can be achieved by providing a cylindrical body the applicable floor cleaning roller can be applied, which has a certain minimum length.
  • a cylindrical body the applicable floor cleaning roller can be applied, which has a certain minimum length.
  • at least 25% of the width of the nozzle housing have proven to be a useful lower limit.
  • the width of the nozzle housing is in this case dimensioned parallel or along the axis of rotation of the floor cleaning roller.
  • the removal or the insertion can be fundamentally improved initially with increasing length of the relevant cylindrical body. If, for example, this extends along the axis of rotation over at least 30% of the width of the nozzle housing, over at least 35%, over at least 40% or over at least 45% of the width of the nozzle housing, the relevant removal or insertion operation can optionally be further facilitated, since the floor cleaning roller in the nozzle is guided by the cylindrical body over a greater distance.
  • the cylindrical body serves not least to guide the floor cleaning roller in the nozzle housing.
  • the floor cleaning roller and the cylindrical body are therefore generally designed to allow or provide appropriate guidance of the floor cleaning roller.
  • the cylindrical body may be attached to a first side surface of the nozzle housing side facing the nozzle housing. It can therefore be attached to a point attached by a center plane through the nozzle housing or the nozzle point, wherein the center plane is perpendicular to the axis of rotation. In other words, the cylindrical body can be so be secured asymmetrically in the nozzle housing. As a result, an easier removal or easier insertion of a side surface of the nozzle housing or the nozzle may be possible.
  • the nozzle housing on at least one of the first side surface facing away from the second side surface of the nozzle housing at least partially comprise an insertion opening for inserting and removing the floor cleaning roller.
  • the insertion opening may at least partially have a round shape.
  • the floor cleaning roller can be correspondingly formed on a side facing the inserted side of the first side surface in such a way that the floor cleaning roller is at least at the beginning of introducing the same in the nozzle housing on the nozzle housing along feasible.
  • the floor cleaning roller may comprise a substantially cylindrical roller body portion having a substantially circular disc-shaped guide portion, wherein the guide portion has a larger diameter than the roller body portion.
  • the floor cleaning roller may comprise a substantially cylindrical roller body portion and a closure structure for the insertion opening, wherein the closure structure to the roll body portion is rotatably mounted.
  • the closure structure may in this case be designed to close the insertion opening after insertion of the floor cleaning roller.
  • the shutter structure and the roller body portion are connected to each other in such an embodiment due to the rotatable mounting, so that the insertion of the floor cleaning roller can be simplified in this case, since the user only a single component, namely the floor cleaning roller must operate.
  • the floor cleaning roller may comprise a substantially cylindrical roller body portion having a plurality of brushes mounted therein.
  • the floor cleaning roller can be encompassed by a smallest circumference cylinder jacket surface with a cylinder diameter, wherein the nozzle housing has a recess facing the floor to be cleaned during operation.
  • the floor cleaning roller may in this case be arranged in the nozzle housing during operation of the floor cleaning device in such a way that the brushes can penetrate the recess during a rotation of the floor cleaning roller.
  • the cylinder diameter of the circumferential cylinder jacket surface may in this case be greater than an extent of the recess perpendicular to the axis of rotation.
  • a diameter of the above-described disk-shaped guide portion may be smaller than the cylinder diameter of the smallest peripheral cylinder jacket surface.
  • the design of the nozzle may optionally be simplified in that the guide section allows the above-described leadership of the floor cleaning roller, but the brushes of the floor cleaning roller substantially determine the cylinder diameter of the circumferential cylinder jacket surface. These can thus penetrate the recess and thus be in contact with the floor to be cleaned, without this also applies to the guide section.
  • the diameter of the guide portion may also be greater than an extension of the recess perpendicular to the axis of rotation. hereby the guide section can serve not only for guiding, but also, if necessary, as a safeguard against inadvertent falling out of the floor cleaning roller from the nozzle housing, if this has not yet come into contact with the cylindrical body. This also makes it possible to simplify the insertion or removal of the floor cleaning roller from the nozzle or the nozzle housing.
  • the floor cleaning roller may have a substantially centrally extending recess, which is designed to receive the cylindrical body in an inserted state of the floor cleaning roller. This allows a mechanically simple to be realized and thus typically stable construction can be achieved, which allows the previously described leadership of the floor cleaning roller through the cylindrical body.
  • the cylindrical body may be configured to rotate in whole or in part upon rotation of the floor cleaning roller. As a result, if necessary, a wear of the floor cleaning roller or the cylindrical body can be reduced. Likewise, if necessary, an additional noise development can be reduced.
  • the floor cleaning roller may be driven via a mutual toothing with a transmission component, for example via a turbine driven by an air flow of the floor cleaning appliance.
  • a transmission component for example via a turbine driven by an air flow of the floor cleaning appliance.
  • the mutual toothing can be designed such that it acts self-centering when inserting the floor cleaning roller.
  • the insertion of the floor cleaning roller can be simplified because requirements for alignment with respect to an angle about the rotation axis at insertion is reduced.
  • the floor cleaning roller a funnel-shaped and / or obliquely incoming teeth and the transmission member having a conical and / or tapered teeth.
  • the cylindrical body can be frictionally, positively and / or materially connected to the transmission component, for example via an adhesive bond and / or an interference fit with or without an optional knurling on the cylindrical body and / or the transmission component, be connected.
  • a connection of the transmission member and the cylindrical body can be achieved with mechanically simple means and thus typically in a stable manner.
  • the cylindrical body can also be made of a metal, a metal alloy or other appropriate material beyond.
  • Exemplary embodiments can thus make it possible to improve a removal or insertion operation of the floor cleaning roller from or into the nozzle of a floor cleaning appliance, that is, for example, a vacuum cleaner.
  • Fig. 1 shows a cross-sectional view through a nozzle 100 according to an embodiment of a floor cleaning device, which is more specifically a vacuum cleaner and more particularly a household vacuum cleaner.
  • a nozzle 100 is also referred to as a cleaning head, suction head or vacuum cleaner mouthpiece.
  • the nozzle 100 has a nozzle housing 110 which, for example, can be produced at least partially from an injection-moldable plastic as part of an injection molding process.
  • a turbine 130 is rotatably arranged in an air guide region 120 facing a fan of the floor cleaning device.
  • the turbine 130 has shafts 140, via which the turbine 130 is rotatably mounted via bearings 150. If an air flow is thus caused by the fan of the floor cleaning device through the air guide region 120, the turbine 130 is set in rotation.
  • a first pulley 160 is rotatably connected, via which a first belt 170 is caused to move due to the movement of the turbine 130.
  • the first belt 170 is engaged with a second pulley 180, via which a further shaft 190 is caused to rotate in rotation due to a rotationally fixed connection of the second pulley 180.
  • a third belt pulley 200 is non-rotatably connected to the further shaft 190, which in turn engages a second belt 210, which in turn mechanically connects to a transmission member 220, which is also a pulley 230, so as to rotate the turbine 130 and the transmission member 220 is set in rotation.
  • both the transmission component 220 and the further shaft 190 are each rotatably mounted in the nozzle housing 110.
  • the pulleys are designed as a toothed belt pulleys and the corresponding belt as a toothed belt.
  • the power transmission is thus based on a combination of positive and positive transmission. In the case of pulleys and corresponding belt, however, there is primarily a non-positive transmission.
  • the nozzle housing 110 has a suction chamber 240, which is fluidically connected to the air guide region 120 such that an air flow caused by the blower of the floor cleaning device passes through the suction chamber 240 to the turbine in the air guide region 120, before it is passed on to the blower.
  • the suction chamber 240 in this case has an in Fig. 1 not shown recess or opening, which faces the floor to be cleaned during operation of the floor cleaning device and the associated nozzle 100 and through which the réellesaugenden particles, so dirt, dirt and other impurities are absorbed.
  • an at least partially substantially cylindrical body 250 extends, which is rotatably connected to the transmission member 220 in the present embodiment.
  • the transmission component 220 is made of a plastic
  • the cylindrical body 250 is made of a metallic material, for example a metal or a metal alloy.
  • the cylindrical body 250 is fastened to the transmission component 220 via a non-positive and positive connection, namely by means of a knurled reinforced press fit.
  • the transmission component 220 is arranged in the region of a first side surface of the nozzle housing 110, with the result that the cylindrical body 250 extends into the suction chamber 240 only from one side, ie asymmetrically.
  • the cylindrical body 250 extends along an axis of rotation over at least 25% of a width of the nozzle housing 110 along the axis of rotation 270.
  • the cylindrical body 250 and a floor cleaning roller described in more detail in connection with the further figures are in this case designed such that the floor cleaning roller can be applied to the cylindrical body and from there to be led.
  • the cylindrical body is thus formed together with the floor cleaning roller such that it can be applied to the cylindrical body during removal and insertion.
  • the floor cleaning roller is taken relatively early from the cylindrical body and guided accordingly. In this way, therefore, the floor cleaning roller is already led to the transmission member 220 early.
  • this has a bevel 280 on an end facing away from the transmission member 220, which allows due to their rejuvenation easier picking up the floor cleaning roller.
  • the transmission member 220 further has a toothing 290, via which a positive connection with the floor cleaning roller for transmitting a torque.
  • the floor cleaning roller has, as for example in connection with the Fig. 3 . 4 . 6 and 7 will be explained in more detail, a corresponding counter-toothing.
  • the nozzle housing 110 further comprises one or more guide surfaces 300 along which a corresponding guide section of the floor cleaning roller slide along can be performed.
  • the guide surface 300 is in this case arranged on a second side surface 310 of the nozzle housing 110, which lies opposite the first side surface 260 along the axis of rotation 270.
  • the guide surfaces 300 are in this case arranged in the region of an insertion opening 320, which provides access to the suction space 240, through which the in Fig. 1 not shown floor cleaning roller is inserted.
  • a nozzle 100 as in Fig. 1 is shown, thus enabling an improvement of the roll guide a floor cleaning roller and an improvement of the roll finding in the context of such, due to their design with a turbine 130 also referred to as a turbo nozzle vacuum cleaner nozzle.
  • a turbine 130 also referred to as a turbo nozzle vacuum cleaner nozzle.
  • Fig. 2 it may be, for example, a brush or bristle roller in the floor cleaning nozzle in question, in which a plurality of brushes come into contact with the soil to be cleaned.
  • the turbine 130 is moved due to the air flow of the fan.
  • Fig. 1 driven not shown floor cleaning roller.
  • Fig. 2 will show, this is covered with bristles or brushes, which are at least partly responsible for the dust and fiber intake.
  • the floor cleaning roller has been cleaned, this is used again in the nozzle housing 110.
  • the floor cleaning roller should again positively engage with the transmission member 220 and its toothing 290 to create the torque transmission.
  • the nozzle 100 or its transmission component 220 as well as the floor cleaning roller to be described below have some design details, which will be explained in more detail below.
  • the cylindrical body 250 with its previously described length of at least 25% of the width of the nozzle housing 110 along the axis of rotation 270th the possibility that the floor cleaning roller can easily be threaded.
  • the cylindrical body 250 thus provides a long roller guide.
  • the self-identification of the toothing 290 of the toothing 290 described below may, if appropriate, reduce the user's attention when threading the floor cleaning roller, since it can snap in more easily.
  • the cylindrical body 250 may be laid out along the axis of rotation 270 also greater than 25% of the width of the nozzle housing 110.
  • at least 30%, at least 35%, at least 40% or at least 45% of a width of the nozzle housing 110 may be used.
  • Fig. 2 shows a side view of the previously mentioned, but not shown floor cleaning roller 330.
  • the transmission member 220 is disposed in the region of the first side surface 260 of the nozzle housing 110.
  • Fig. 2 shows the floor cleaning roller 330, which is also referred to as a brush roller, with the transmission member 220 and the pulley 230 designed as a toothed belt pulley in the right part of the illustration.
  • the floor cleaning roller 330 On a side opposite the transmission component 220 side, the floor cleaning roller 330 has a bearing 340, via which a substantially cylindrical roller body portion 350 rotatably mounted on a in Fig. 2 Not shown closure member or a closure structure, not shown there, is rotatably mounted and fixed.
  • the floor cleaning roller 330 is thus rotatably disposed in the nozzle housing 110 via the transmission member 220 and the bearing 340 of the shutter structure. Due to the structural features that will be described below, the Floor cleaning roller 330 removed from the nozzle housing 110 and used in this later again.
  • closure structure In the Fig. 2 Not shown closure structure is in this case connected in the inserted state with the nozzle housing 110 and designed such that it closes the insertion opening 320.
  • the floor cleaning roller 330 has the roller body portion 350 in which a plurality of brushes 360, also referred to as bristles, are inserted.
  • the brushes 360 may in this case be made of any material suitable for the corresponding cleaning purpose.
  • the brushes 360 may thus be correspondingly bundles of individual fibers, but may also be larger, for example essentially cylindrical, structures made of a plastic or a rubber.
  • the brushes 360 are here along also in Fig. 2 illustrated rotational axis 270, around which the bottom cleaning roller 330 rotates during operation of the nozzle 110, arranged circumferentially V-shaped.
  • a tip of the V-shaped arrangement is in this case arranged in the region of a center plane 370 of the nozzle 100 in the installed state of the floor cleaning roller 330.
  • the axis of rotation 270 is perpendicular to the measuring device 370.
  • the bottom cleaning roller 330 at a in the inserted state of the first side surface 260, so the transmission member 220 facing the end of a guide structure 380, which is designed round and disc-shaped.
  • the floor cleaning roller 330 can contact the guide section 380 with the substantially at least partially round insertion opening 320 or the corresponding guide surfaces 300, so as to facilitate insertion of the floor cleaning roller 330.
  • the guide section 380 has a diameter larger than that of the roller body 350. Due to discontinuous brushes 360, it is convenient to define the diameter of the floor cleaning roller 330 over a perimeter cylinder jacket surface 390 that is the smallest perimeter cylinder jacket surface. Their cylinder diameter is both larger than the diameter of the guide portion 380 as well as the diameter of the roller body portion 350.
  • the circumferential cylinder jacket surface 390 here is the smallest peripheral cylindrical jacket surface, if this has an axis of symmetry coinciding with the axis of rotation 270 and is dimensioned in terms of their cylinder diameter just such that on the one hand the floor cleaning roller 330, in particular with their brush 360 is completely inside the peripheral cylinder jacket surface, but no other Peripheral cylinder jacket surface 390 can be defined, which has a smaller cylinder diameter and also coaxial with the axis of rotation 270 and includes all components of the floor cleaning roller 330 in its interior.
  • floor cleaning roller 330 with a recessed roller body section 350
  • differently configured floor cleaning rollers 330 may also be used.
  • a substantially complete covering of the roller body portion 350 with corresponding brushes 360 can take place, so that they have a nearly uniform, if necessary, but also patterned structure.
  • non-uniform brushes but different ones, for example with different degrees of hardness or different mechanical properties.
  • Fig. 3 shows a cross-sectional view through the already in Fig. 2 shown floor cleaning roller 330. So shows Fig. 3 in that the floor cleaning roller 330 has a substantially centrally extending recess 400 which is just designed to receive the cylindrical body 250 in the inserted state of the floor cleaning roller 330 into the nozzle housing 110. Accordingly, the centrally extending recess 400 extends substantially collinear with the axis of rotation 270 and at least a length corresponding to that of the cylindrical body 250 as well. Depending on the specific configuration, it may be advisable in this case to design the centrally extending recess 400 slightly deeper or longer than the cylindrical body 250. The centrally extending recess 400 thus offers space for the extended axis, so the cylindrical body 250, which serves as a roller guide.
  • the floor cleaning roller 330 on a side facing away from the guide section 380, ie in the region of the bearing 340 on a further centrally extending recess 410, in which a bearing pin 420 of the bearing 340 is introduced.
  • a positive, positive and / or cohesive connection can be created between the bearing pin 420 and the floor cleaning roller 330.
  • the mechanical connection between the bearing pin 420 and the floor cleaning roller 330 is based on a substantially frictional connection by appropriate selection of the diameter of the bearing pin 420 and the other central recess 410. This can optionally be further increased by an optional knurling of the bearing pin 420.
  • FIG. 3 shows Fig. 3 in the region of the guide section 380, that is to say in the region of the toothing 290, the corresponding counter-toothed structure 430, which is described below in connection with FIG Fig. 4 will be described in more detail.
  • Fig. 3 thus shows the floor cleaning roller 330 with their splines in section.
  • the counter-toothing structure 430 has a plurality of regularly arranged recesses 440, into which corresponding teeth of the toothing 290 of the transmission component 220 can engage.
  • the counter teeth structure 430 adjacent the recesses 440 has tapered surfaces 450, respectively, which may be oriented clockwise or counterclockwise. In the present embodiment of a floor cleaning roller 330, these are oriented in a clockwise direction.
  • the tooth structure is in this case funnel-shaped and formed obliquely incoming, but in other embodiments if appropriate, only a funnel-shaped or only obliquely running-in configuration with the corresponding bevelled surfaces 450 can take place.
  • the counter-toothing structures 430 are funnel-shaped as well as obliquely running-in.
  • the obliquely incoming toothing is achieved here by the bevelled surfaces 450, while Fig. 4 Parts of the side surfaces 460 shows a recess in which the corresponding counter tooth structure 430 is arranged.
  • FIG. 1 shows a plan view of the transmission component 220, that is to say the belt pulley 230.
  • the transmission component 220 thus has an arrangement of toothing structures 470 adapted to the recesses 440 of the floor cleaning roller 330, which together with the counter-toothing structures 430 of the floor cleaning roller 330 form the toothing 290.
  • the toothing structures 470 are configured conical and tapered, as the representation of Fig. 5 already gives an idea.
  • the transfer member 220 thus enables finding and threading the floor cleaning roller 330 due to its external teeth.
  • the configuration of the toothing 290 on the side of the transmission component 220 that is, the tooth structure 470 is to be described in more detail, will initially be described in connection with FIG Fig. 6 the Schmidt fixtureungs Quilt 430 of the floor cleaning roller 330 described in more detail.
  • the counter-toothing structure 430 has an angle ⁇ relative to the axis of rotation 270 in the outer region, which allows the bottom-cleaning roller 330 to slip in on the transmission component 220 with ease.
  • the counter-toothing structure 430 in this case has, starting from a lateral surface 480 of the floor cleaning roller 330, a first section in which the counter-toothed structure 430 has the previously mentioned angle ⁇ , in order to make it possible to find the correct floor cleaning roller position as simply as possible. This is followed by a second section, in which the side walls of the counter-toothed structure 430 extend substantially parallel to the axis of rotation 270.
  • a third section which along the axis of rotation 270 has a length d1, which is typically in the range of less than 5 mm, and in which the counter-tooth structure 430 tapers conically again to the central recess 400 and its diameter , In the present embodiment, the distance d1 is about 1.5 mm.
  • the three sections together have the aforementioned depth d.
  • FIG Fig. 7 an enlarged cross-sectional view of the floor cleaning roller 330 and the transmission member 220 in the assembled state. So shows Fig. 7 in that the floor cleaning roller 330 with its counter-toothed structure 430 forms an outer spline toothing, which enables a form-fitting, torque-transmitting connection to the transmission component 220 and its toothed structure 470.
  • the toothing structure 470 in this case forms the inner toothing fit.
  • Fig. 8 now shows a side view of the transmission member 220 and the pulley 230, which is designed in the present case as a toothed belt pulley.
  • the transmission component 220 has the toothed structure 470, wherein its teeth have an angle ⁇ outside the axis of rotation 270 that is smaller than the angle ⁇ of the floor cleaning roller 330 Finding the teeth and making the corresponding positive locking
  • the angle ⁇ is typically in the range of less than 45 °. In the present embodiment, it is about 26.6 °.
  • Fig. 8 clearly that it is the pulley 230, so the transmission member 220, a toothed belt pulley.
  • the transmission member 220 on one of the toothed structure 470 side facing away from a provided with a toothed structure tread 490, in which the second belt 210, which is correspondingly a toothed belt engages, and so a non-positive and positive connection for transmitting the Torque from the third pulley 200 to the transmission member 220 to create.
  • Fig. 9 shows finally a cross-sectional view through the transmission member 220 and the pulley 230.
  • the toothing structure 470 in this case in the outer region at an angle Y relative to the axis of rotation 270, which has only a slight inclination of typically less than 25 °, often less than 15 °. Thus, it has an angle of only 3.1 ° in the present case.
  • the tooth flanks of the toothed structure 470 have an angle ⁇ relative to the axis of rotation 270 which, depending on the orientation, is at least 100 ° or at most 80 °. In the exemplary embodiment shown here, the angle is more precisely about 128.7 ° or 38.7 °.
  • the toothed structures 470 in the present case have rounded regions which are designed with a radius r which is typically at least a factor 2 smaller than a total length e of the toothed structure 470.
  • the overall length of the toothed structure 470 orients itself here the total length d of the counter-toothing structure 430 is typically smaller than this.
  • the total length e of the toothing structure 470 has a length of about 8.75 mm, wherein the rounding r has a radius of about 3 mm.
  • the bottom cleaning roller 330 when the bottom cleaning roller 330 is reinserted into the turbo brush 100, it can engage positively in a splined toothing in order to be driven via the turbine 130 or another drive mechanism in another exemplary embodiment.
  • the drive side of the toothing 290 is seated on the transmission component 220, that is to say the toothed belt pulley or pulley 230, which is driven by the turbine 130 via corresponding belts or toothed belts 170, 210.
  • the transmission component 220 is held in the bearing via the cylindrical body 250, which serves as an axle for the corresponding bearing of the transmission component 220.
  • the axis is thus extended as a cylindrical body 250 through the transmission member 220 therethrough and serves as a guide for the floor cleaning roller 330. By means of this long guide, the floor cleaning roller 330 can be threaded accordingly early.
  • the toothing 290 in this case forms a spline toothing, which on the drive side comprises an internal toothing, the toothed structure 470, which is arranged on the transmission component 220. It further comprises the output side outer teeth, the Gegenveriereungs Quilt 430, which is arranged in the floor cleaning roller 330.
  • the two toothing structures are here designed so that they find themselves and align themselves with each other when the floor cleaning roller 330 is inserted through the insertion opening 320 accordingly. This is made possible in the embodiment described here by the above-described conical and tapered teeth on the side of the transmission member 220 and the funnel-shaped and obliquely incoming teeth on the side of the floor cleaning roller 330.
  • the nozzle 100 thus has a roller guide and -findung for also referred to as bristle roller floor cleaning roller 330.
  • the nozzle shown and described herein is a turbo nozzle. However, other drive techniques may be used.
  • Exemplary embodiments can thus make it possible to improve a removal or insertion operation of the floor cleaning roller from or into the nozzle of a floor cleaning appliance, that is, for example, a vacuum cleaner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP13165872.6A 2012-05-03 2013-04-30 Buse pour un appareil de nettoyage du sol Active EP2659817B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012207357A DE102012207357A1 (de) 2012-05-03 2012-05-03 Düse für ein Bodenreinigungsgerät

Publications (3)

Publication Number Publication Date
EP2659817A2 true EP2659817A2 (fr) 2013-11-06
EP2659817A3 EP2659817A3 (fr) 2017-08-16
EP2659817B1 EP2659817B1 (fr) 2021-06-30

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EP13165872.6A Active EP2659817B1 (fr) 2012-05-03 2013-04-30 Buse pour un appareil de nettoyage du sol

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EP (1) EP2659817B1 (fr)
DE (1) DE102012207357A1 (fr)

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US9844307B2 (en) 2015-11-30 2017-12-19 Black & Decker Inc. Cleaning head
EP3616583A1 (fr) 2018-08-28 2020-03-04 BSH Hausgeräte GmbH Buse d'aspirateur
WO2022237260A1 (fr) * 2021-05-10 2022-11-17 江苏美的清洁电器股份有限公司 Ensemble brosse de plancher pour aspirateur, et aspirateur

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US9955832B2 (en) 2015-01-30 2018-05-01 Sharkninja Operating Llc Surface cleaning head with removable non-driven agitator having cleaning pad
US11607095B2 (en) 2015-01-30 2023-03-21 Sharkninja Operating Llc Removable rotatable driven agitator for surface cleaning head
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DE102012207357A1 (de) 2013-11-07
EP2659817A3 (fr) 2017-08-16

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