EP2659817B1 - 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
EP2659817B1
EP2659817B1 EP13165872.6A EP13165872A EP2659817B1 EP 2659817 B1 EP2659817 B1 EP 2659817B1 EP 13165872 A EP13165872 A EP 13165872A EP 2659817 B1 EP2659817 B1 EP 2659817B1
Authority
EP
European Patent Office
Prior art keywords
floor cleaning
cleaning roller
nozzle
nozzle housing
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13165872.6A
Other languages
German (de)
English (en)
Other versions
EP2659817A3 (fr
EP2659817A2 (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 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 Hausgeraete GmbH filed Critical BSH 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
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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, for example a vacuum cleaner.
  • rotating brush rollers are used there, for example, to mechanically remove dirt, dust and dirt, but also other fibrous or particle-like contaminants before they are sucked in with a vacuum cleaner, for example.
  • nozzle denotes an attachment which is brought into contact with the floor to be cleaned and through which the corresponding air or gas flow is passed.
  • nozzles are also referred to as suction heads, vacuum cleaner nozzles or cleaning heads.
  • corresponding nozzles have such brush rollers, these can be set in rotation by means of different approaches.
  • the brush roller can be driven directly or indirectly, for example via a gear, via an electric motor attached in the area of the nozzle.
  • the brush roller can also be driven solely by the movement of the nozzle relative to the floor to be cleaned.
  • so-called turbo nozzles are used, in which the brush roller is set in rotation with the aid of a turbine and the air or gas flow that is already present.
  • 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 relates to a sweeper with a rotating, drivable brush roller, which is rotatably mounted at both ends in a frame.
  • the drive takes place here via a toothed wheel which engages with its teeth in driver recesses in the brush roller at one end and which forms the bearing of the relevant brush roller in this end.
  • the DE 41 39 693 A1 finally relates to a vacuum cleaner mouthpiece with an exchangeably arranged roller body rotatably mounted by means of an axis or shaft. Easier replacement of the roller body is made possible by the fact that the axle or shaft is mounted on at least one side in a semicircular recess of a bearing element fixed to the housing and the axle or shaft end is held in the recess by a detachable latching element.
  • a nozzle for a floor cleaning device of a vacuum cleaner which has a nozzle housing with a substantially cylindrical body accommodated therein.
  • a floor cleaning roller can be inserted into and removed from the nozzle housing by placing the floor cleaning roller on the cylindrical body of the nozzle housing.
  • the cylindrical body extends over at least 25% of a width of the nozzle housing.
  • a nozzle for a floor cleaning device for example a vacuum cleaner, takes this requirement into account.
  • the reference symbols in all claims do not have a restrictive effect, but are only intended to improve their readability.
  • the nozzle according to the invention for a floor cleaning device for example a vacuum cleaner, comprises a nozzle housing, a floor cleaning roller which can be removed from the nozzle housing and reinserted into it and which can be rotated about an axis of rotation with respect to the nozzle housing during operation of the floor cleaning device.
  • the nozzle further comprises an at least partially substantially cylindrical body which extends substantially parallel to the axis of rotation at least during operation of the floor cleaning device, the floor cleaning roller and the cylindrical body being designed in such a way that the floor cleaning roller when removed and when inserted onto the cylindrical Body can be applied, and wherein the cylindrical body extends over at least 25% of a width of the nozzle housing.
  • the floor cleaning roller comprises a substantially cylindrical roller body section with a substantially round, disk-shaped guide section, the guide section having a larger diameter than the roller body section. This enables the floor cleaning roller to be pre-aligned, for example with the aid of structurally simple means.
  • Such a nozzle according to an exemplary embodiment is based on the knowledge that an improvement in a removal or insertion process of the floor cleaning roller in the nozzle can be achieved by providing a cylindrical body to which the floor cleaning roller in question can be applied and which has a certain minimum length having. At least 25% of the width of the nozzle housing has proven to be a reasonable lower limit. The width of the nozzle housing is measured parallel to or along the axis of rotation of the floor cleaning roller.
  • the removal or the insertion can in principle initially be improved as the length of the relevant cylindrical body increases. If this extends, for example, 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 process can be further facilitated, if necessary, since the floor cleaning roller is guided in the nozzle through 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 in such a way as to enable or create a corresponding guidance of the floor cleaning roller.
  • the cylindrical body can be attached to a side of the nozzle housing facing a first side surface of the nozzle housing. It can therefore be attached to a point attached from a central plane through the nozzle housing or the nozzle, the central plane being perpendicular to the axis of rotation. To put it another way, the cylindrical body can thus be fastened asymmetrically in the nozzle housing. This enables easier removal or insertion from a side surface of the nozzle housing or the nozzle, if necessary.
  • the nozzle housing can at least partially comprise an insertion opening for inserting and removing the floor cleaning roller on a second side surface of the nozzle housing facing away from the first side surface.
  • a design that is better matched to an air flow which flows through the nozzle during operation of the floor cleaning device can thus be implemented through such a lateral inlet opening.
  • easier removal through a possible lateral pulling out and / or possibly a mechanically more stable solution can be implemented, which can lead to a longer service life of the nozzle.
  • the inlet opening can have a round shape, at least in sections.
  • the floor cleaning roller can accordingly be shaped on a side facing the first side surface in the inserted state in such a way that the floor cleaning roller can be guided along the nozzle housing at least at the beginning of the introduction of the same into the nozzle housing.
  • the floor cleaning roller can have a substantially cylindrical roller body section and a closure structure for the inlet opening, the closure structure facing the roller body section is rotatably mounted.
  • the closure structure can be designed in such a way as to close the inlet opening after the floor cleaning roller has been inserted.
  • the closure structure and the roller body section are connected to one another due to the rotatable mounting, so that the insertion of the floor cleaning roller can be simplified in this case, since the user only has to operate a single component, namely the floor cleaning roller.
  • the floor cleaning roller can have a substantially cylindrical roller body section with a plurality of brushes fastened therein.
  • the floor cleaning roller can be enclosed by a smallest circumferential cylinder jacket surface with a cylinder diameter, the nozzle housing having a recess facing a floor to be cleaned during operation.
  • the floor cleaning roller can be arranged in the nozzle housing during operation of the floor cleaning device in such a way that the brushes can penetrate the recess when the floor cleaning roller rotates.
  • the cylinder diameter of the circumferential cylinder jacket surface can be greater than an extension of the recess perpendicular to the axis of rotation.
  • a diameter of the disk-shaped guide section described above can be smaller than the cylinder diameter of the smallest circumferential cylinder jacket surface.
  • the construction of the nozzle can optionally be simplified in that the guide section enables the previously explained guidance of the floor cleaning roller, but the brushes of the floor cleaning roller essentially determine the cylinder diameter of the circumferential cylinder surface. These can therefore penetrate the recess and thus be in contact with the floor to be cleaned, without this also applying to the guide section.
  • the diameter of the guide section can also be greater than an extension of the recess perpendicular to the axis of rotation.
  • the guide section can serve not only for guiding, but also optionally as a safeguard against the floor cleaning roller inadvertently falling out of the nozzle housing if it has not yet come into contact with the cylindrical body. This also makes it easier to insert or remove the floor cleaning roller from the nozzle or the nozzle housing.
  • the floor cleaning roller can have an essentially centrally running recess which is designed in such a way as to receive the cylindrical body when the floor cleaning roller is in the inserted state. In this way, a mechanically simple to implement and thus typically stable construction can be achieved, which enables the above-described guidance of the floor cleaning roller through the cylindrical body.
  • the cylindrical body can be designed in such a way that it can rotate completely or partially when the floor cleaning roller rotates. This can reduce wear on the floor cleaning roller or the cylindrical body, if necessary. Any additional noise development can also be reduced if necessary.
  • the floor cleaning roller can be driven via a mutual toothing with a transmission component, for example via a turbine driven by an air flow from the floor cleaning device.
  • a transmission component for example via a turbine driven by an air flow from the floor cleaning device.
  • the mutual toothing can be designed in such a way that it acts in a self-centering manner when the floor cleaning roller is inserted. In this way, the insertion of the floor cleaning roller can be simplified, since the requirements for alignment with regard to an angle about the axis of rotation during insertion are reduced.
  • the floor cleaning roller can have a funnel-shaped and / or inclined toothing and the transmission component can have a conical and / or tapering toothing.
  • the cylindrical body with the transmission component can be non-positively, positively and / or materially bonded, for example via an adhesive bond and / or a press fit with or without an optional knurling on the cylindrical body and / or the transmission component, be connected.
  • a connection of the transmission component and the cylindrical body can thus be achieved in turn with mechanically simple means and thus typically in a stable manner.
  • the nozzle housing, the roller body section of the floor cleaning roller, the guide section of the floor cleaning roller, the closure structure of the floor cleaning roller, but also the brushes of the floor cleaning roller and the cylindrical body can be made of a plastic, for example an injection-mouldable plastic.
  • the cylindrical body can also be made of a metal, a metal alloy or another suitable material.
  • a non-positive or frictional connection is created through static friction, a material connection through molecular or atomic interactions and forces, and a form-fitting connection through a geometric connection between the relevant connection partners.
  • the static friction therefore requires in particular a normal force component between the two connection partners.
  • Embodiments can thus make it possible to improve a process of removing or inserting the floor cleaning roller from or into the nozzle of a floor cleaning device, for example a vacuum cleaner.
  • Fig. 1 shows a cross-sectional view through a nozzle 100 according to an embodiment for a floor cleaning device, which is more precisely a vacuum cleaner and, more precisely, 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 can, for example, be produced at least partially from an injection-mouldable plastic in the context 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, by means of which the turbine 130 is rotatably mounted via bearings 150. If the fan of the floor cleaning device thus effects an air flow through the air guiding area 120, the turbine 130 is set in rotation.
  • a first belt pulley 160 via which a first belt 170 is set in motion due to the movement of the turbine 130, is connected in a rotationally fixed manner to the shaft 140 of the turbine 130.
  • the first belt 170 is in engagement with a second belt pulley 180, via which a further shaft 190 is set in rotation due to a rotationally fixed connection of the second belt pulley 180 with the latter.
  • a third belt pulley 200 is non-rotatably connected to the further shaft 190, which in turn engages with a second belt 210, which in turn is mechanically connected to a transmission component 220, which is also a belt pulley 230, so that it can rotate the turbine 130, the transmission component 220 is also 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 toothed belt pulleys and the corresponding belts as toothed belts.
  • the power transmission is thus based on a combination of force-fit and form-fit transmission.
  • pulleys and corresponding belts there is primarily a force-fit transmission.
  • the nozzle housing 110 has a suction chamber 240 which is fluidically connected to the air guiding area 120 in such a way that an air flow caused by the fan of the floor cleaning device passes through the suction chamber 240 to the turbine in the air guiding area 120 before it is passed on to the fan.
  • the suction chamber 240 here 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 particles to be sucked up, ie dirt, grime and other contaminants are sucked up.
  • an at least partially essentially cylindrical body 250 extends into it, which in the present exemplary embodiment is non-rotatably connected to the transmission component 220.
  • 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 force-locking and form-locking connection, namely with the help of a knurled press fit.
  • the transmission component 220 is arranged in the area of a first side surface of the nozzle housing 110, so that the cylindrical body 250 extends into the suction chamber 240 only from one side, that is to say 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 which will be described in more detail in connection with the further figures, are designed in such a way that the floor cleaning roller can be applied to and from the cylindrical body to be led.
  • the cylindrical body is thus designed together with the floor cleaning roller in such a way that it can be applied to the cylindrical body when it is removed and inserted.
  • the floor cleaning roller is picked up by the cylindrical body at a comparatively early stage and guided accordingly. As a result, the floor cleaning roller is therefore already guided to the transmission component 220 at an early stage.
  • the latter In order to facilitate receiving or threading of the floor cleaning roller onto the cylindrical body 250, the latter has a bevel 280 at an end facing away from the transmission component 220 which, due to its taper, enables the floor cleaning roller to be picked up more easily.
  • the transmission component 220 also has a toothing 290, via which a form-fitting connection with the floor cleaning roller for transmitting a torque.
  • the floor cleaning roller has, as for example in connection with the Fig. 3 , 4th , 6 and 7 will be explained in more detail, a corresponding counter-toothing.
  • the nozzle housing 110 also has one or more guide surfaces 300 on which a corresponding guide section of the floor cleaning roller glides or along can be performed.
  • the floor cleaning roller can at least partially be guided in the interior of the nozzle housing, more precisely in the area of the suction chamber 240, at an early stage.
  • the guide surface 300 is arranged on a second side surface 310 of the nozzle housing 110, which is opposite the first side surface 260 along the axis of rotation 270.
  • the guide surfaces 300 are arranged in the area of an insertion opening 320, which creates an access to the suction chamber 240 through which the in Fig. 1 Floor cleaning roller, not shown, is insertable.
  • a nozzle 100 as shown in Fig. 1 is shown, thus enables an improvement in the roller guidance of a floor cleaning roller and an improvement in the roller finding within the framework of such a vacuum cleaner nozzle, which is also referred to as a turbo nozzle due to its configuration with a turbine 130.
  • the floor cleaning nozzle in question can be, for example, a brush or bristle roller, in which a plurality of brushes come into contact with the floor to be cleaned.
  • the turbine 130 is moved due to the air flow of the fan.
  • the in Fig. 1 Driven floor cleaning roller, not yet shown. How Fig. 2 will show, this is equipped with bristles or brushes, which are at least partly responsible for the dust and fiber absorption.
  • the floor cleaning roller If the floor cleaning roller has now been cleaned, it is reinserted into the nozzle housing 110. When the floor cleaning roller is reinserted into the nozzle 100, the floor cleaning roller should again engage positively with the transmission component 220 and its toothing 290 in order to create the torque transmission to it.
  • the nozzle 100 or its transmission component 220 as well as the floor cleaning roller described below have some structural details which are explained in more detail below.
  • 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 270 the possibility that the floor cleaning roller can simply be threaded.
  • the cylindrical body 250 thus represents a long roller guide.
  • the self-finding of the splines of the toothing 290 described below can therefore possibly reduce the user's attention when threading the floor cleaning roller, since it can engage more easily.
  • the cylindrical body 250 can of course also be designed to be longer than 25% of the width of the nozzle housing 110 along the axis of rotation 270.
  • at least 30%, at least 35%, at least 40% or at least 45% of a width of the nozzle housing 110 can be used.
  • FIG. 13 shows a side view of the floor cleaning roller 330 already mentioned but not shown.
  • FIG Fig. 2 the floor cleaning roller 330 in an assembled state, in which this is in positive contact with the transmission component 220, which will be described in more detail below.
  • the transmission component 220 is arranged in the area 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 component 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, the floor cleaning roller 330 has a bearing 340, via which a substantially cylindrical roller body section 350 can be rotated on an in Fig. 2 Not shown locking component or a locking structure not shown there is rotatably mounted and fastened.
  • the floor cleaning roller 330 is thus rotatably arranged in the nozzle housing 110 via the transmission component 220 and the bearing 340 of the closure structure. Due to the design features that will be described below, the Floor cleaning roller 330 can be removed from the nozzle housing 110 and reinserted into this later.
  • the closure structure (not shown) is connected to the nozzle housing 110 in the inserted state and is designed in such a way that it closes the insertion opening 320.
  • the floor cleaning roller 330 has the roller body section 350 in which a plurality of brushes 360, which are also referred to as bristles, are inserted.
  • the brushes 360 can be made of any material suitable for the respective cleaning purpose.
  • the brushes 360 can accordingly be bundles of individual fibers, but also larger, for example essentially cylindrical structures made of a plastic or a rubber.
  • the brushes 360 are here along the line also in Fig. 2
  • the axis of rotation 270 shown, around which the floor cleaning roller 330 rotates during operation of the nozzle 110, is arranged in a circumferential V-shape. A tip of the V-shaped arrangement is arranged in the area of a center plane 370 of the nozzle 100 when the floor cleaning roller 330 is installed.
  • the axis of rotation 270 is perpendicular to the measuring device 370.
  • the floor cleaning roller 330 has a guide structure 380, which is round and disk-shaped, at an end facing the first side surface 260 in the inserted state, that is to say the transmission component 220.
  • the floor cleaning roller 330 can come into contact via the guide section 380 with the introduction opening 320, which is essentially round at least in sections, or the corresponding guide surfaces 300, in order to facilitate the introduction of the floor cleaning roller 330.
  • the guide section 380 has a diameter which is greater than that of the roller body 350. Because the brushes 360 are not arranged continuously, it is advisable to define the diameter of the floor cleaning roller 330 via a circumferential cylinder jacket surface 390, which represents the smallest circumferential cylinder jacket surface. Your cylinder diameter is both larger than the diameter of the guide section 380 as well as that of the roller body section 350.
  • the circumferential cylinder jacket surface 390 is the smallest circumferential cylinder jacket surface if it has an axis of symmetry which coincides with the axis of rotation 270 and is precisely dimensioned with regard to its cylinder diameter in such a way that on the one hand the floor cleaning roller 330, in particular with its brushes 360, lies completely inside the circumferential cylinder jacket surface, but no other Circumferential cylinder jacket surface 390 can be defined, which has a smaller cylinder diameter and is also coaxial with the axis of rotation 270 and includes all components of the floor cleaning roller 330 in its interior.
  • floor cleaning rollers 330 configured differently can also be used.
  • the roller body section 350 can also be essentially completely covered with corresponding brushes 360, so that these have an almost uniform structure, possibly, however, also permeated by patterns. If necessary, brushes that are not uniform, but rather different ones, for example with different degrees of hardness or different mechanical properties, can be used.
  • Fig. 3 shows a cross-sectional view through the already in Fig. 2 Floor cleaning roller 330 shown. So shows Fig. 3 that the floor cleaning roller 330 has an essentially centrally running recess 400 which is just designed to receive the cylindrical body 250 in the inserted state of the floor cleaning roller 330 in the nozzle housing 110.
  • the centrally running recess 400 extends essentially collinearly to the axis of rotation 270 and corresponds to at least a length which also corresponds to that of the cylindrical body 250.
  • the centrally running recess 400 thus offers space for the extended axis, that is to say the cylindrical body 250, which serves as a roller guide.
  • the floor cleaning roller 330 has a further centrally running recess 410 into which a bearing pin 420 of the bearing 340 is introduced.
  • a non-positive, positive and / or material connection can be created between the bearing pin 420 and the roller body of the floor cleaning roller 330.
  • the mechanical connection between the bearing pin 420 and the floor cleaning roller 330 is based on an essentially non-positive connection through a corresponding selection of the diameter of the bearing pin 420 and the further centrally running recess 410. This can, if necessary, be further increased by an optional knurling of the bearing pin 420.
  • FIG. 3 shows Fig. 3 in the area of the guide section 380, that is to say in the area of the toothing 290, the corresponding counter-toothing structure 430, which is described below in connection with Fig. 4 is described in more detail.
  • Fig. 3 shows the floor cleaning roller 330 with its splines in section.
  • the counter-tooth structure 430 has a plurality of regularly arranged recesses 440 into which corresponding teeth of the tooth system 290 of the transmission component 220 can engage.
  • the counter-toothed structure 430 has, adjacent to the recesses 440, beveled surfaces 450 which can be oriented clockwise or counterclockwise.
  • a floor cleaning roller 330 these are oriented clockwise.
  • the toothing structure here is funnel-shaped and tapered, although in other exemplary embodiments if necessary, only a funnel-shaped or only angled configuration with the corresponding beveled surfaces 450 can take place.
  • the counter-toothing structures 430 are designed to be both funnel-shaped and inclined.
  • the inclined toothing is achieved here by the beveled surfaces 450, while Fig. 4 Shows parts of the side surfaces 460 of a recess in which the corresponding counter-tooth structure 430 is arranged.
  • Fig. 5 shows a top view of the transmission component 220, i.e. the belt pulley 230.
  • the transmission component 220 has an arrangement of toothed structures 470 which is adapted to the recesses 440 of the floor cleaning roller 330 and which together with the counter-toothed structures 430 of the floor cleaning roller 330 form the toothing 290.
  • the toothing structures 470 are here conical and tapered to a point, as shown in FIG Fig. 5 already suggests.
  • the transmission component 220 thus enables the floor cleaning roller 330 to be found and threaded due to its external toothing.
  • the counter-tooth structure 430 of the floor cleaning roller 330 is described in more detail. As already explained above, this is designed funnel-shaped and inclined.
  • the counter-tooth structure 430 thus has an angle ⁇ with respect to the axis of rotation 270 in the outer area, which allows the floor cleaning roller 330 to slide easily onto the transmission component 220. This can, for example, assume any value in the angular range between 10 ° and 80 °, an angle between 30 ° and 75 ° having been selected in the present case.
  • these angles enable the counter-toothing structure 430 to be brought into contact with the toothing structure 470 in a targeted manner even in the event of an imprecise introduction, but without creating expansively deep counter-toothing structures 430.
  • an angle of approximately 68 ° has been used in the present case. So can with the angle used here
  • a depth d of the counter-tooth structure of less than 15 mm, more precisely in the present case of 9.5 mm, can be used.
  • the counter-tooth structure 430 has, starting from a lateral surface 480 of the floor cleaning roller 330, a first section in which the counter-tooth structure 430 has the aforementioned angle ⁇ in order to enable the correct floor cleaning roller position to be found as easily as possible. This is followed by a second section in which the side walls of the counter-tooth structure 430 run essentially parallel to the axis of rotation 270. This is now followed by a third section, which has a length d1 along the axis of rotation 270, which is typically in the range of less than 5 mm, and in which the counter-tooth structure 430 again tapers conically to the centrally running recess 400 and its diameter . In the present exemplary embodiment, the distance d1 is approximately 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 that the floor cleaning roller 330 with its counter-toothing structure 430 forms an outer fitting toothing, which enables a form-fitting, torque-transmitting connection to the transmission component 220 and its toothing structure 470.
  • the tooth structure 470 here forms the inner fitting tooth system.
  • Fig. 8 now shows a side view of the transmission component 220 or the belt pulley 230, which in the present case is designed as a toothed belt pulley.
  • the transmission component 220 has the toothed structure 470, its teeth having an angle ⁇ with respect to the axis of rotation 270 in the outer area, which is smaller than the angle ⁇ of the floor cleaning roller 330 Finding the toothing and producing the appropriate form-fitting Connection can be realized.
  • the angle ⁇ here is typically in the range of less than 45 °. In the present exemplary embodiment, it is approximately 26.6 °.
  • the belt pulley 230 that is to say the transmission component 220
  • the transmission component 220 is a toothed belt pulley.
  • the transmission component 220 has a running surface 490 provided with a toothed structure, in which the second belt 210, which is accordingly a toothed belt, engages and thus provides a non-positive and positive connection for transmitting the To provide torque from the third pulley 200 to the transmission member 220.
  • FIG. 3 shows a cross-sectional view through the transmission component 220 or the belt pulley 230.
  • the toothed structure 470 in the outer area has an angle ⁇ relative to the axis of rotation 270, which has only a slight inclination of typically less than 25 °, often less than 15 °. In the present case, it has an angle of only 3.1 °.
  • the tooth flanks of the toothed structure 470 have an angle ⁇ with respect 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 approximately 128.7 ° or 38.7 °.
  • the toothed structures 470 in the present case have rounded areas which are designed with a radius r that is typically at least a factor 2 smaller than an overall length e of the toothed structure 470.
  • the overall length of the toothed structure 470 is based on this the total length d of the counter-tooth structure 430 and is typically designed to be smaller than this.
  • the total length e of the toothed structure 470 has a length of approximately 8.75 mm, the rounding r having a radius of approximately 3 mm.
  • the floor cleaning roller 330 when the floor cleaning roller 330 is reinserted into the turbo brush 100, it can engage positively in a spline in order to be driven via the turbine 130 or another drive mechanism in another embodiment.
  • the drive side of the toothing 290 sits on the transmission component 220, that is to say the toothed belt pulley or belt 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 axis for the corresponding bearing of the transmission component 220.
  • the axis is thus extended as a cylindrical body 250 through the transmission component 220 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 in early.
  • the toothing 290 here forms a fitting toothing which, on the drive side, comprises an inner toothing, the toothing structure 470, which is arranged on the transmission component 220. On the output side, it further comprises an external toothing, the counter-toothing structure 430, which is arranged in the floor cleaning roller 330.
  • the two toothed structures are designed in such a way that they find each other independently and align with one another when the floor cleaning roller 330 is correspondingly inserted through the insertion opening 320. In the exemplary embodiment described here, this is made possible by the previously explained conical and tapered toothing on the side of the transmission component 220 and the funnel-shaped and inclined toothing on the side of the floor cleaning roller 330.
  • the nozzle 100 thus has a roller guide and roller guide for the floor cleaning roller 330, which is also referred to as a bristle roller.
  • the nozzle that has been shown and described here so far represents a turbo nozzle. However, other drive technologies can also be used.
  • Embodiments can thus make it possible to improve a process of removing or inserting the floor cleaning roller from or into the nozzle of a floor cleaning device, for example a vacuum cleaner.

Claims (12)

  1. Buse (100) pour un appareil de nettoyage des sols, par exemple un aspirateur, présentant les particularités suivantes :
    un carter de buse (110) ;
    un rouleau de nettoyage des sols (330) qu'on peut extraire du carter de buse (110) et l'y réinsérer, lequel tourne, par rapport au carter de buse (110) pendant le fonctionnement de l'appareil de nettoyage des sols, autour d'un axe de rotation (270) ; et
    un corps (250) au moins sur une section essentiellement de forme cylindrique qui s'étend au moins pendant le fonctionnement de l'appareil de nettoyage des sols, de manière essentiellement parallèle à l'axe de rotation (270),
    le rouleau de nettoyage des sols (330) et le corps de forme cylindrique (250) étant réalisés de façon que le rouleau de nettoyage des sols (330) peut être placé lors de l'extraction et de l'insertion sur le corps de forme cylindrique (250) ; et
    le corps de forme cylindrique (250) s'étendant sur au moins 25% d'une largeur du carter de buse (110),
    caractérisée en ce que le rouleau de nettoyage des sols (330) comprend une section de corps de rouleau (350) essentiellement de forme cylindrique avec une section de guidage (380) essentiellement arrondie en disque, la section de guidage (380) présentant un diamètre plus grand que la section de corps de rouleau (350).
  2. Buse (100) selon la revendication 1, caractérisée en ce que le corps de forme cylindrique (250) est fixé sur un côté du carter de buse (100) face à une première surface latérale (260) du carter de buse (110).
  3. Buse (100) selon la revendication 2, caractérisée en ce que le carter de buse (110), sur une deuxième face latérale (310) du carter de buse (110) tournant le dos à la première face latérale (260), comprend au moins en partie un orifice d'insertion (320) pour l'insertion et l'extraction du rouleau de nettoyage des sols (330).
  4. Buse (100) selon la revendication 3, caractérisée en ce que l'orifice d'insertion (320) comprend au moins sur une section une forme arrondie et dans laquelle le rouleau de nettoyage des sols (330) est façonné sur un côté regardant, à l'état inséré, la première face latérale (260), de sorte que le rouleau de nettoyage des sols (330) peut être guidé, du moins au début de l'insertion du même dans le carter de buse (110), le long du carter de buse (110).
  5. Buse (100) selon l'une des revendications précédentes, caractérisée en ce que sur la deuxième face latérale (310) du carter de buse (110) se trouvent des surfaces conductrices (300) dans la zone de l'orifice d'insertion (320), lesquelles sont installées pour l'insertion du rouleau de nettoyage des sols (330) dans le carter de buse, et qui entrent en contact avec la section de guidage (380).
  6. Buse (100) selon l'une des revendications précédentes, caractérisée en ce que le rouleau de nettoyage des sols (330) comprend une section de corps de rouleau (350) essentiellement de forme cylindrique présentant une pluralité de balais (360) fixés dans celui-ci, le rouleau de nettoyage des sols (330) pouvant être entouré d'une minuscule surface enveloppant le cylindre sur son pourtour (390) avec un diamètre de cylindre, et le carter de buse (110) comprend un creux (440) face, pendant le fonctionnement, à un sol à nettoyer, le rouleau de nettoyage des sols (330) étant situé, pendant le fonctionnement de l'appareil de nettoyage des sols, dans le carter de buse (110) de façon que les balais (360) peuvent pénétrer le creux (440) en cas de rotation du rouleau de nettoyage des sols (330), et le diamètre de cylindre étant plus grand qu'une extension du creux (440) perpendiculaire à l'axe de rotation (270).
  7. Buse (100) selon l'une des revendications précédentes, caractérisée en ce que le rouleau de nettoyage des sols (330) comprend un creux (440) passant de manière essentiellement centrale, réalisé pour loger le corps de forme cylindrique (250), à l'état inséré du rouleau de nettoyage des sols (330).
  8. Buse (100) selon l'une des revendications précédentes, caractérisée en ce que le corps cylindrique (250) est exécuté de sorte que celui-ci peut tourner en même temps complètement ou partiellement lors d'une rotation du rouleau de nettoyage des sols (330).
  9. Buse (100) selon l'une des revendications précédentes, caractérisée en ce que le rouleau de nettoyage des sols (330) est entraîné par un engrenage mutuel (290) avec un module de transmission, par exemple par une turbine (130) entraînée par un jet d'air de l'appareil de nettoyage des sols.
  10. Buse (100) selon la revendication 9, caractérisée en ce que l'engrenage mutuel (290) est réalisé à centrage automatique lors d'une insertion du rouleau de nettoyage des sols (330).
  11. Buse (100) selon la revendication 10, caractérisée en ce que le rouleau de nettoyage des sols (330) comprend un engrenage (290) s'étendant en entonnoir et/ou en oblique et le module de transmission (220) comprend un engrenage (290) s'étendant de façon conique et/ou pointue.
  12. Buse (100) selon l'une des revendications 9 à 11, caractérisée en ce que le corps de forme cylindrique (250) est forcé, s'emboîte et/ou adhère au module de transmission (220) par exemple par collage et/ou ajustage serré avec ou sans moletage facultatif.
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

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

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US11607095B2 (en) 2015-01-30 2023-03-21 Sharkninja Operating Llc Removable rotatable driven agitator for surface cleaning head
US9655486B2 (en) * 2015-01-30 2017-05-23 Sharkninja Operating Llc Surface cleaning head including removable rotatable driven agitator
US9955832B2 (en) 2015-01-30 2018-05-01 Sharkninja Operating Llc Surface cleaning head with removable non-driven agitator having cleaning pad
US10076183B2 (en) 2015-08-14 2018-09-18 Sharkninja Operating Llc Surface cleaning head
EP3173002B1 (fr) 2015-11-30 2021-08-04 Black & Decker Inc. Tête de nettoyage
EP3592178B1 (fr) 2017-03-10 2024-02-21 SharkNinja Operating LLC Agitateur à dispositif de débridement et d'épilation
US11202542B2 (en) 2017-05-25 2021-12-21 Sharkninja Operating Llc Robotic cleaner with dual cleaning rollers
EP3616583B1 (fr) 2018-08-28 2021-06-23 BSH Hausgeräte GmbH Buse d'aspirateur
WO2021087097A1 (fr) 2019-10-31 2021-05-06 Techtronic Cordless Gp Brosse cylindrique pour un nettoyeur de sol
CN113229745B (zh) * 2021-05-10 2022-03-25 江苏美的清洁电器股份有限公司 用于吸尘器的地刷总成和吸尘器

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DE4139693A1 (de) 1991-12-02 1993-06-03 Siemens Ag Staubsaugermundstueck
DE19820628C1 (de) 1998-05-08 1999-09-23 Kaercher Gmbh & Co Alfred Kehrmaschine
DE60011805T2 (de) * 1999-12-10 2005-07-07 Tecnica International S.R.L. Reinigungsvorrichtung mit auswechselbarer bürste
US20030145424A1 (en) * 2002-02-01 2003-08-07 Royal Appliance Mfg. Co. Two-piece brushroll
JP2009529241A (ja) * 2006-03-07 2009-08-13 アプライド マテリアルズ インコーポレイテッド スリーブを備えたスクラバブラシおよびスクラバブラシと共に用いるためのブラシマンドレル
US8261407B2 (en) * 2009-09-01 2012-09-11 Techtronic Floor Care Technology Limited Vacuum cleaner accessory tool
GB201003603D0 (en) 2010-03-04 2010-04-21 Dyson Technology Ltd A vacuum cleaning head

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Publication number Publication date
DE102012207357A1 (de) 2013-11-07
EP2659817A3 (fr) 2017-08-16
EP2659817A2 (fr) 2013-11-06

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