EP2659816B1 - Nozzle for a floor cleaning machine - Google Patents
Nozzle for a floor cleaning machine Download PDFInfo
- Publication number
- EP2659816B1 EP2659816B1 EP13165523.5A EP13165523A EP2659816B1 EP 2659816 B1 EP2659816 B1 EP 2659816B1 EP 13165523 A EP13165523 A EP 13165523A EP 2659816 B1 EP2659816 B1 EP 2659816B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- latching structure
- floor cleaning
- latching
- cleaning 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.)
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Images
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
-
- 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
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. So
- 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 US 6 226 832 B1 describes a stick vacuum cleaner whose cleaning head has several flaps which are intended to allow one or more accesses for maintenance of individual drive elements or a cleaning roller integrated therein.
- the DE 41 39 693 A1 finally relates to a vacuum cleaner mouthpiece with an interchangeably 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 in a semicircular recess on at least one side a bearing element fixed to the housing and the axle or shaft end is held in the recess by a detachable latching element.
- the DE 10 2005 024 748 A1 refers to a sweeper with a removable roller brush.
- at least one locking element is provided which in a locking position rotatably fixes the roller brush in a working position and which in an open position releases the roller brush for removal.
- 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 a predetermined width of the nozzle housing.
- a pressure mechanism triggers a closing element of the nozzle housing, so that the closing element and the floor cleaning roller assigned to this closing element are released and can be removed from an opening that is created as a result.
- the user can switch the locking element between the locking position and the open position.
- the brush roller is typically equipped with bristles or brushes that improve the absorption of dust and fibers.
- bristles or brushes that improve the absorption of dust and fibers.
- these include, in particular, animal hair.
- 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 for solving the task for a floor cleaning device for example a vacuum cleaner, comprises a nozzle housing with an insertion opening at least partially arranged on one side surface and a floor cleaning roller which can be removed from the nozzle housing via the insertion opening and reinserted into the nozzle housing via the insertion opening, the floor cleaning roller having an in Has a substantially cylindrical roller body section and a closure structure for the insertion opening which is rotatably mounted relative to the roller body section.
- the locking structure here has a first latching structure and a second latching structure which is essentially opposite the first latching structure.
- the nozzle housing comprises a first counter-locking structure assigned to the first locking structure and a second counter-locking structure assigned to the second locking structure, which are designed to enable a releasable and re-producible positive connection between the nozzle housing and the closure structure.
- the first latching structure that The second latching structure, the first counter-latching structure and the second counter-latching structure can be designed and arranged in such a way that they release the floor cleaning roller by pressing on substantially opposite unlocking sections on an outer surface of the closure structure.
- the floor cleaning roller can also be operated due to a non-positive connection between the fingers of a user and the corresponding surfaces the closure structure can be easily removed from the nozzle housing. This may save you having to change your grip. In addition or as an alternative, an unnatural movement sequence can also be prevented.
- the nozzle is thus based on the knowledge that the floor cleaning roller of the nozzle can be removed and reinserted more easily in that the relevant latching structures are arranged in such a way that they are essentially opposite one another.
- the two form-fitting latching structures are therefore designed in such a way that they can be opened on one another by means of pressure.
- this corresponds precisely to a natural grip movement of the hand, which is why the removal, handling and reinsertion of the floor cleaning roller can be simplified.
- the floor cleaning roller is firmly connected to the closure structure essentially via a rotatable bearing. It thus represents an assembly or a component that can be operated with one hand.
- first latching structure and the first counter-latching structure and the second latching structure and the second counter-latching structure can engage behind one another in a locked state in such a way that the floor cleaning roller is prevented from moving towards the nozzle housing along a removal direction.
- the first latching structure and the second latching structure can be brought into an unlocked state by moving them along an unlocking path running essentially perpendicular to the removal direction, so that the floor cleaning roller can be moved to the nozzle housing along the removal direction.
- the first latching structure and / or the first counter-latching structure can be configured in a U-shape. It can therefore have a groove or bead which is formed by two corresponding sections of the latching structure or counter-latching structure. In this way, a mechanically more stable connection, possibly positive in two directions, can be created between the floor cleaning roller and the nozzle housing.
- the first latching structure can be arranged on a tongue of the closure structure. This can have a length along the removal direction which is greater than its width essentially perpendicular to the removal direction and the unlocking path. In this way, a mechanically comparatively soft and thus clearly compressible locking can be achieved, via which the user is clearly signaled that he is currently removing the floor cleaning roller from the nozzle housing. This can thus enable a more intuitive operation of the nozzle if necessary.
- the nozzle housing can have a sliding structure which is designed and arranged in such a way that when the floor cleaning roller is inserted, the tongue of the closure structure is guided along it before the first latching structure latches with the first counter-latching structure.
- the sliding structure can, for example, optionally be formed by two webs.
- the second latching structure can be arranged on a further tongue of the closure structure which has a length along the removal direction that is smaller than its width essentially perpendicular to the removal direction and the unlocking path. In this way, a locking can be created that has a lower mechanical flexibility. This makes it possible, on the one hand, to save installation space, so that they are arranged, for example, in the area of an underside of the nozzle which typically faces the floor to be cleaned during operation of the floor cleaning device and the nozzle.
- the second latching structure can also be used to create an additional mechanical connection between the floor cleaning roller and the nozzle housing, without this being realized immediately by the user, however. In this way as well, handling of the nozzle can therefore optionally be configured in a more intuitive way in addition or as an alternative.
- the closure structure in the area of the second latching structure can have at least one guide groove or a guide pin, the nozzle housing correspondingly having a guide pin or a guide groove in the area of the second counter-latching structure.
- the guide groove can have a recess which forms the second latching structure or the second counter-latching structure, and the guide pin correspondingly forms the second counter-latching structure or the second latching structure.
- a plurality of second latching structures, a plurality of second counter-latching structures and / or a plurality of corresponding guides, each with a guide groove and a guide pin can of course also be implemented.
- the floor cleaning roller can furthermore comprise a guide structure which tapers away from the closure structure.
- the nozzle housing can furthermore comprise a guide edge, the guide structure and the guide edge being designed in such a way that they enable the floor cleaning roller to be guided and / or centered relative to the nozzle housing when the floor cleaning roller is inserted into the nozzle housing.
- the guide structure and the guide edge being designed in such a way that they enable the floor cleaning roller to be guided and / or centered relative to the nozzle housing when the floor cleaning roller is inserted into the nozzle housing.
- the introduction of the floor cleaning roller into the nozzle housing can be improved and thus simplified due to the described interaction of the guide structure and the guide edge with one another.
- the guide structure can be designed in one piece or in multiple segments.
- the guide structure can be designed to be essentially conical.
- the guide structure can extend over an angle of at least 90 ° and at most 359 ° around a removal direction, the floor cleaning roller being removable from the nozzle housing along the removal direction.
- the closure structure can be designed in one piece with an essentially constant material thickness.
- it can be made of an injection-mouldable material, for example in the context of an injection molding process. This not only simplifies the manufacture of the nozzle or its closure structure, it can optionally be possible in connection with the previously defined geometries of the tongue and the further tongue to achieve easier adjustment of the elastic properties of these components due to their widths and lengths.
- 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 plan view of a nozzle 100 according to an embodiment for a floor cleaning device, more precisely in the present case for a vacuum cleaner for the household sector.
- the nozzle 100 is therefore sometimes also referred to as a cleaning head, suction head or vacuum cleaner nozzle.
- the nozzle 100 here has a nozzle housing 110 and a floor cleaning roller 120, of which, however, in the case of the in Fig. 1 Selected representation only a closure structure 130 is visible.
- the closure structure 130 is designed in such a way that it covers and closes an insertion opening 140 of the nozzle housing 110 on one of its side surfaces 150.
- the closure structure 130 can be made of an injection-mouldable material, for example an injection-mouldable plastic. It can thus be an injection-molded part, that is to say a component that was manufactured in the context of an injection-molding process.
- the locking structure 130 is, since it also serves to latch the floor cleaning roller 120, also referred to as roller latching for short.
- the closure structure 130 here has a first and a second latching structure, to which a first and a second counter-latching structure are correspondingly assigned, which are embodied as part of the nozzle housing 110, that is to say included therein.
- the locking structure 130 each has an unlocking section 160, from which in FIG Fig. 1 only one unlocking section 160-1 can be seen. This is provided on the one hand for identification and on the other hand to improve a non-positive connection between the closure structure 130 and a finger of a user of the nozzle 100 with a surface structure 170, which in the present case comprises a plurality of semicircular grooves and an arrow, the arrow indicating a removal direction 180 .
- the nozzle housing 110 and the floor cleaning roller 120 are now designed in such a way that the insertion opening 140, which in FIG Fig. 1 is closed or covered by the closure structure 130, the floor cleaning roller 120 with a corresponding roller body can be removed along the removal direction 180 by releasing the aforementioned latching structures and then reinserted in the opposite direction.
- the unlocking section 160-1 shows a position of the first latching structure (not shown in FIG Fig. 1 ), i.e. a component of the roller locking.
- the nozzle 100 is a so-called turbo nozzle, in which a turbine is moved or driven by means of an air flow, which via a corresponding drive mechanism, which can include, for example, toothed belt pulleys, toothed belts and other components, which is described in Fig. 1 also not shown roller body of the floor cleaning roller 120 drives.
- the air flow is generated here by a fan of the household appliance which, however, is not part of the nozzle 100 or is arranged in the nozzle housing 110.
- other drive technologies than the use of a turbine, which in the present case is arranged in the interior of the nozzle housing 110, can also be used.
- an electric motor can be used to drive the floor cleaning roller 120 within the scope of the nozzle 100 itself or in its immediate vicinity.
- another transmission for example via gear wheels, belts or other power transmission methods, can be used to transfer the mechanical movement to the floor cleaning roller 120.
- a corresponding drive of the floor cleaning roller 120 can optionally also be completely omitted if it is driven, for example, by a movement of the nozzle 100 over the floor to be cleaned itself. This can be rotated faster or slower than would correspond to the movement of the nozzle over the floor, if necessary using a corresponding step-down or step-up, that is to say by using a corresponding gear.
- the floor cleaning roller 120 which is also referred to as a brush roller, can be removed and reinserted more easily into the nozzle 100.
- FIG. 13 shows a side view of the nozzle 100 with the closure structure 130 removed along with the floor cleaning roller 120. So shows Fig. 2 a view through the insertion opening 140 into an interior of the nozzle housing 110 into an area also referred to as suction space 190, in which the aforementioned roller body of the floor cleaning roller 120 is arranged during operation of the nozzle 100 or while the floor cleaning roller 120 is inserted into the nozzle housing 110 is.
- the floor cleaning roller 120 is inserted through the insertion opening 140 into an insertion area 200, which includes, for example, a corresponding receiving and guiding of the roller body of the floor cleaning roller 120 on a side of the nozzle housing 110 facing away from the side surface 150.
- FIG. 2 shows Fig. 2 a first counter-latching structure 210 of the nozzle housing 110, to which the previously mentioned, but not yet shown in detail, first latching structure of the floor cleaning roller 120 or its closure structure 130 is assigned.
- the first counter-latching structure 210 here comprises a projection 220, which is engaged from behind by the U-shaped first latching structure of the closure structure 130.
- the first counter-latching structure 210 has a recess 230.
- the first counter-latching structure 210 has a sliding structure 240 which, in the present case, comprises two webs 250.
- the webs 250 of the sliding structure 240 are here - starting from the side surface 150 of the nozzle housing 110 - arranged in front of the projection 220, so that when the floor cleaning roller 120 is inserted, a tongue of the locking structure can be guided along the sliding structure 210 before the first latching structure with the first Jacobverrastungs Quilt 210 locked and thus creates the form-fitting connection.
- the nozzle housing 110 has two second counter-latching structures 260-1, 260-2, which in the present case are designed as guide grooves 270-1, 270-2 and also because of their in connection with Fig. 4 described in more detail Structure also serve to lock the rollers.
- second counter-latching structures 260 are essentially identical - apart from a mirror-image arrangement.
- more than one counter-latching structure 210 can also be implemented, provided that these are also designed to be essentially identical.
- the nozzle housing 110 also has a guide edge 280 which is designed and arranged in such a way that this, together with a tapering guide structure of the floor cleaning roller 120, guides the same when it is inserted into the nozzle housing 110.
- the guide edge 280 is designed essentially in the shape of a segment of a circle and has an angle of approximately 270 °, with respect to which it extends around the removal direction 180 symmetrically to the position of the first counter-latching structure 210 on both sides.
- FIG. 13 shows a cross-sectional view of the nozzle housing 110 and the floor cleaning roller 120 in a state inserted into the nozzle housing 110.
- Fig. 3 shows a cross-sectional plane in which the first counter-latching structure 210 and the first latching structure 290 of the locking structure 130 of the floor cleaning roller 120 assigned to it are shown. Due to the in Fig. 2 The lateral offset of the two second counter-latching structures 260 shown in FIG Fig. 3 not shown.
- the first latching structure 290 has an essentially U-shaped structure with which it engages behind the projection 220 of the first counter-latching structure 210.
- the first latching structure 290 is arranged on a tongue 300 which, along the removal direction 180, has a greater length than a width perpendicular to the removal direction 180 and perpendicular to an unlocking path 310.
- the corresponding geometric configuration is further supported by the fact that the closure structure 130 is made in one piece with an essentially constant material thickness. This makes it possible to determine the mechanical properties of the unlocking section 160 - 1 essentially through the geometric configuration of the tongue 300.
- the tongue 300 has a groove-shaped depression 320 in the region of its transition to the rest of the closure structure 130, by means of which the mobility of the tongue 300 is additionally improved.
- the recess 320 defines a kind of pivot point about which the tongue 300 can be moved.
- the tongue 300 moves here together with the first latching structure 290 essentially on an arcuate unlocking path 310.
- this can be a good approximation as straight Line, as in Fig. 3 is shown.
- first latching structure 290 and its associated first counter-latching structure 210 are also referred to as upper latching, since these are arranged on an upper side of the nozzle housing 110.
- Fig. 3 also shows the guide edge 270 of the nozzle housing 110 as well as the previously mentioned but not yet shown guide structure 330, which is designed in such a way that it at least partially guides the floor cleaning roller 120 together with the guide edge 270 when the floor cleaning roller 120 is inserted.
- the guide structure 330 is designed here as a cone, which is why it is also referred to as a guide cone. In this case, it extends at an angle of at least 90 ° and at most 359 ° in order to avoid an incorrectly oriented introduction of the floor cleaning roller 120 as far as possible.
- the guide structure 330 tapers away from the closure structure 130. In the exemplary embodiment shown here, the guide structure 330 extends symmetrically approximately at an angle of a total of 270 ° around the removal direction 180 on both sides of the first latching structure 290 or the first counter-latching structure 210.
- Fig. 3 also at least partially shows a bearing 340 with which the in Fig. 3
- the roller body (not shown) of the floor cleaning roller 120 is rotatably mounted in the suction chamber 190.
- a further unlocking section 160 - 2 which likewise has a corresponding surface structure 170, in order to make it identifiable as an unlocking section 160.
- the unlocking section 160-2 can have, for example, a plurality of grooves designed as a concentric ring.
- the unlocking section 160 can also be arranged on a further tongue 350, which, however, compared to the tongue 300 has a different ratio of its length along the removal direction 180 and its width perpendicular to this and the unlocking path 310.
- the further tongue 350 can have a shorter length than a width, so that it has a greater rigidity than the tongue 300.
- the tongue 300 together with the first locking structure 290 will cover a greater distance along the unlocking path 310 than in the case of the second locking structures, which are also mechanically connected to the further tongue 350, will be the case. So it is with a corresponding design of the second latching structure, as it is in connection with Fig. 4 will be described in more detail, although the latching of the second latching structures and their corresponding second counter-latching structures 260 are released, a user will, however, essentially get the impression that only the first latching structure 290 and its corresponding first counter-latching structure 210 have been separated from one another. This may make it possible, without endangering intuitive operation of the closure structure 130, to improve the mechanical stability by providing a plurality of latching structures.
- FIG. 3 essentially a front view of the nozzle 100 in section with the upper roller latching, that is to say the first latching structure 290 and the first Mating latch structure 210, shows Fig. 4 a corresponding sectional view of the nozzle 100 with a parallel to the sectional plane Fig. 3 offset sectional plane in which the second counter-latching structure 260 and one of the two second latching structures 360 of the locking structure 130 implemented here are shown.
- the guide structure 330 that is to say the guide cone, is also shown in relation to one another along a different sectional plane, which is why this is shown in the present illustration of Fig. 4 appears thicker and in a different position.
- the second interlocking structures 360 also referred to as lower interlocking, and their corresponding second counter-interlocking structures 260 are designed differently from the first interlocking structure 290 and the first counter-interlocking structure 210.
- the second counter-latching structures 260 are designed as guide groove 270.
- the second counter-latching structures 260 or the guide grooves 270 have two sections 370, 380, between which a section 390 of the second latching structure 360 is moved when the floor cleaning roller 120 is inserted.
- the section 390 thus represents a pin 400 which is moved through the guide groove 270 formed by the two sections 370, 380.
- the second counter-locking structure 260 has a projection 410 which is introduced into a recess 420 in the pin 400 or the corresponding section 390 of the second locking structure 360.
- the two second latching structures 360 therefore have a significantly smaller overlap area with their corresponding second counter-latching structures 260 than is the case with the first latching structure 290 and the first counter-latching structure 210.
- the second latching structures 360 therefore not least serve to additionally secure or support the securing of the closure structure 130 against slipping out.
- the floor cleaning roller 120 which is also referred to for short as a brush roller, can thus be removed from the side through the insertion opening 140 essentially with a handle.
- the user of the nozzle 100 presses the closure structure 130, which is also referred to as roller latching, using a thumb and another finger and can then pull the floor cleaning roller 120 out of the nozzle 100 or its nozzle housing 110.
- the brush roller is rotatably connected to the closure structure 130 and is pulled out at the same time.
- the guide structure 330 When the floor cleaning roller 120 is reinserted into the essentially round introduction area 200 on the side of the nozzle 100, the guide structure 330, designed as a guide cone, contributes to the fact that the closure structure can only engage in one position. As a result, the latching structures are essentially found independently and the risk of incorrect orientation of the same, that is to say a possibility of incorrectly latching the relevant latching structures to one another, is significantly reduced.
- the guide structure 330 (guide cone) runs along the guide edge 270 and centers the closure structure 130. As explained above, the guide structure in the exemplary embodiment shown here is circular over an angle of approximately 270 ° of the insertion area 200.
- the two guide grooves 270 into which two guides of the closure structure 130 are inserted, are located in the lower region of the insertion region 200.
- two latching points are provided which latch into two recesses or recesses 420 of the closure structure 130. These latching points form the lower latches, that is to say the second latching structures 360.
- the first latching structure 290 designed as a U latch is implemented, which latches into a nose or a projection 220 in the nozzle housing 110. This forms the upper latching of the closure structure 130. Both latches together ensure that the floor cleaning roller 120 cannot fall out of the side of the nozzle 100 while it is working.
- the two interlocking latches are designed in such a way that they can be opened by applying pressure to one another, which corresponds to a natural grip movement of the hand. This makes it possible to remove the floor cleaning roller 120 from the nozzle 100 more easily and to insert it again more easily than is the case with conventional nozzles.
- An exemplary embodiment of a nozzle 100 thus enables a brush roller latching of a turbo nozzle or another nozzle 100 through self-alignment or self-discovery.
- 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.
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- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Description
Ausführungsbeispiele beziehen sich auf eine Düse für ein Bodenreinigungsgerät, beispielsweise einen Staubsauger.Embodiments relate to a nozzle for a floor cleaning device, for example a vacuum cleaner.
Im Bereich der Bodenreinigungsgeräte, also beispielsweise von Staubsaugern, begegnen Anwender häufig hartnäckigen Verschmutzungen, die schon frühzeitig den Wunsch geweckt haben, diese nicht nur mittels Saugwirkung von dem betreffenden Boden zu entfernen, sondern diese ebenfalls durch den Einsatz von Bürsten vor dem entsprechenden Einsaugen wenigstens anzulösen. So werden beispielsweise zur Reinigung öffentlicher Flächen Kehrmaschinen eingesetzt, bei denen eine entsprechende Bürstenwalze Verunreinigungen von dem zu reinigenden Boden "abkehrt".In the area of floor cleaning devices, such as vacuum cleaners, users often encounter stubborn dirt that prompted the desire not only to remove it from the floor in question by means of suction, but also to at least loosen it by using brushes before the appropriate suction . For example, for cleaning public areas, sweeping machines are used in which a suitable roller brush "sweeps" dirt away from the floor to be cleaned.
Aber auch in anderen Bereichen der Bodenreinigung ergeben sich ähnliche Herausforderungen, weshalb auch dort rotierende Bürstenwalzen eingesetzt werden, um beispielsweise Schmutz, Staub und Dreck, jedoch auch andere faserartige oder partikelartige Verunreinigungen mechanisch abzulösen, bevor diese beispielsweise mithilfe eines Staubsaugers eingesaugt werden.However, similar challenges arise in other areas of floor cleaning as well, which is why 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.
So werden beispielsweise bei Staubsaugern, aber auch bei anderen Bodenreinigungsgeräten, bei denen eine Reinigungswirkung zumindest teilweise auf einem Absaugen bzw. Abblasen mittels eines Luft- oder Gasstroms beruht, entsprechende Bürstenwalzen im Rahmen ihrer Düsen eingesetzt. So bezeichnet der Begriff "Düse" beispielsweise bei einem Staubsauger, aber auch bei anderen Bodenreinigungsgeräten, einen Aufsatz, der mit dem zu reinigenden Boden in Kontakt gebracht wird und über den der entsprechende Luft- oder Gasstrom geleitet wird. So werden Düsen beispielsweise auch als Saugköpfe, Staubsaugermundstücke oder Reinigungsköpfe bezeichnet.For example, in vacuum cleaners, but also in other floor cleaning devices in which a cleaning effect is based at least partially on suction or blowing by means of a stream of air or gas, appropriate brush rollers are used in the context of their nozzles. For example, in a vacuum cleaner, but also in other floor cleaning devices, the term “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. So For example, nozzles are also referred to as suction heads, vacuum cleaner nozzles or cleaning heads.
Weisen entsprechende Düsen solche Bürstenwalzen auf, können diese mittels unterschiedlicher Ansätze in Rotation versetzt werden. So kann beispielsweise über einen im Bereich der Düse angebrachten Elektromotor die Bürstenwalze unmittelbar oder mittelbar, beispielsweise über ein Getriebe, angetrieben werden. Darüber hinaus kann die Bürstenwalze ebenso allein durch die Relativbewegung der Düse zu dem zu reinigenden Boden angetrieben werden. Darüber hinaus werden sogenannte Turbodüsen eingesetzt, bei denen die Bürstenwalze mithilfe einer Turbine und der ohnehin vorhandenen Luft- oder Gasströmung in Rotation versetzt.If corresponding nozzles have such brush rollers, these can be set in rotation by means of different approaches. For example, 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. In addition, the brush roller can also be driven solely by the movement of the nozzle relative to the floor to be cleaned. In addition, 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.
Unabhängig davon, welche Antriebstechnologie für eine solche Bürstenwalze verwendet wird, kann es jedoch beim Einsaugen von langen Fasern und/oder Haaren dazu kommen, dass diese sich um den entsprechenden Walzenkörper der Bürstenwalze wickeln. Um diese wieder zu säubern, kann es daher ratsam sein, die Bürstenwalze entsprechend so auszulegen, dass diese aus der entsprechenden Düse entnehmbar und in diese nach einer entsprechenden Reinigung wieder einsetzbar ist. Bei anderen Reinigungsköpfen kann es gegebenenfalls auch ausreichend sein, wenn die betreffenden Bürstenwalzen lediglich derart zugänglich sind, dass diese von den besagten langen Fasern, beispielsweise den bereits erwähnten Haaren von Menschen oder Tieren, wieder gereinigt werden können.Regardless of which drive technology is used for such a brush roller, however, when long fibers and / or hairs are sucked in, they may wrap around the corresponding roller body of the brush roller. In order to clean this again, it can therefore be advisable to design the brush roller in such a way that it can be removed from the corresponding nozzle and reinserted into it after a corresponding cleaning. In the case of other cleaning heads, it may also be sufficient if the relevant brush rollers are only accessible in such a way that they can be cleaned again from the said long fibers, for example the already mentioned hair of humans or animals.
Die
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Der Benutzer kann das Verriegelungselement zwischen der Verriegelungsstellung und der Öffnungsstellung umschalten.The user can switch the locking element between the locking position and the open position.
Die Bürstenwalze ist hierbei typischerweise mit Borsten oder Bürsten besteckt, die die Staub- und Faseraufnahme verbessern. Zu diesen zählen neben menschlichen Haaren und anderen faserartigen Partikeln insbesondere auch Tierhaare.The brush roller is typically equipped with bristles or brushes that improve the absorption of dust and fibers. In addition to human hair and other fiber-like particles, these include, in particular, animal hair.
Gerade die faserartigen Partikel tendieren jedoch dazu, sich mit einer höheren Wahrscheinlichkeit an den Bürstenwalzen festzusetzen, sich gegebenenfalls um diese sogar herumzuwickeln. Es kann daher notwendig oder zumindest ratsam sein, diese teilweise zu Reinigungszwecken entnehmbar auszugestalten. Hierzu ist es häufig nötig, die Bürstenwalze bei konventionellen Düsen zunächst mithilfe eines Werkzeugs oder mit mehreren, gegebenenfalls komplizierten Handgriffen aus der entsprechenden Düse zu entnehmen. Anders ausgedrückt wird häufig zum Entnehmen bei konventionellen Düsen mehr als ein Handgriff, gegebenenfalls sogar der Einsatz von Werkzeug benötigt.However, it is precisely the fiber-like particles that tend to stick to the brush rollers with a higher probability, and possibly even to wrap themselves around them. It may therefore be necessary or at least advisable to make these partially removable for cleaning purposes. For this purpose, it is often necessary in the case of conventional nozzles to first close the brush roller from the corresponding nozzle with the aid of a tool or with several, possibly complicated, handles remove. In other words, removal of conventional nozzles often requires more than one handle, possibly even the use of a tool.
Bei diesen Konstruktionen stellen sich jedoch die Reinigung bzw. die hierzu notwendige Entnahme und der nach der Reinigung durchzuführende Einsetzvorgang als vergleichsweise kompliziert heraus.In these constructions, however, the cleaning or the removal necessary for this and the insertion process to be carried out after cleaning turn out to be comparatively complicated.
So besteht ein Bedarf, eine Verbesserung eines Entnahme- bzw. Einsatzvorgangs einer Bodenreinigungswalze in eine Düse für ein Bodenreinigungsgerät, also beispielsweise einen Staubsauger, zu schaffen.There is thus a need to create an improvement in the process of removing or inserting a floor cleaning roller into a nozzle for a floor cleaning device, that is to say for example a vacuum cleaner.
Diesem Bedarf trägt eine Düse für ein Bodenreinigungsgerät, also beispielsweise einen Staubsauger, gemäß Patentanspruch 1 Rechnung. Die Bezugszeichen in sämtlichen Ansprüchen haben keine einschränkende Wirkung, sondern sollen lediglich deren Lesbarkeit verbessern.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.
Die Düse zur Lösung der Aufgabe für ein Bodenreinigungsgerät, beispielsweise einen Staubsauger, umfasst ein Düsengehäuse mit einer an einer Seitenfläche wenigstens teilweise angeordneten Einführöffnung und einer dem Düsengehäuse über die Einführöffnung entnehmbaren und über die Einführöffnung in das Düsengehäuse wieder einsetzbare Bodenreinigungswalze, wobei die Bodenreinigungswalze einen im Wesentlichen zylinderförmigen Walzenkörperabschnitt und eine zu dem Walzenkörperabschnitt drehbar gelagerte Verschlussstruktur für die Einführöffnung aufweist. Die Verschlussstruktur weist hierbei eine erste Verrastungsstruktur und eine der ersten Verrastungsstruktur im Wesentlichen gegenüberliegende zweite Verrastungsstruktur auf. Das Düsengehäuse umfasst eine der ersten Verrastungsstruktur zugeordnete erste Gegenverrastungsstruktur und eine der zweiten Verrastungsstruktur zugeordnete zweite Gegenverrastungsstruktur, die derart ausgebildet sind, um eine lösbare und wieder schaffbare formschlüssige Verbindung zwischen dem Düsengehäuse und der Verschlussstruktur zu ermöglichen. Dabei kann die erste Verrastungsstruktur, die zweite Verrastungsstruktur, die erste Gegenverrastungsstruktur und die zweite Gegenverrastungsstruktur derart ausgebildet und angeordnet sein, dass diese die Bodenreinigungswalze durch ein Drücken aneinander im Wesentlichen gegenüberliegenden Entriegelungsabschnitten an einer Außenfläche der Verschlussstruktur freigeben. Hierdurch kann die Handhabung der Bodenreinigungswalze gegebenenfalls weiter vereinfacht werden, da durch diese Ausgestaltung nicht nur das Lösen bzw. wieder Schaffen der formschlüssigen Verbindung zwischen den betreffenden Verrastungsstrukturen möglich wird, die Bodenreinigungswalze kann auch aufgrund einer kraftschlüssigen Verbindung zwischen den Fingern eines Benutzers und den entsprechenden Oberflächen der Verschlussstruktur mühelos aus dem Düsengehäuse entfernt werden. Ein Umgreifen kann so gegebenenfalls erspart werden. Ebenso kann ergänzend oder alternativ ein unnatürlicher Bewegungsablauf verhindert werden.The nozzle for solving the task for a floor cleaning device, for example a vacuum cleaner, comprises a nozzle housing with an insertion opening at least partially arranged on one side surface and a floor cleaning roller which can be removed from the nozzle housing via the insertion opening and reinserted into the nozzle housing via the insertion opening, the floor cleaning roller having an in Has a substantially cylindrical roller body section and a closure structure for the insertion opening which is rotatably mounted relative to the roller body section. The locking structure here has a first latching structure and a second latching structure which is essentially opposite the first latching structure. The nozzle housing comprises a first counter-locking structure assigned to the first locking structure and a second counter-locking structure assigned to the second locking structure, which are designed to enable a releasable and re-producible positive connection between the nozzle housing and the closure structure. The first latching structure that The second latching structure, the first counter-latching structure and the second counter-latching structure can be designed and arranged in such a way that they release the floor cleaning roller by pressing on substantially opposite unlocking sections on an outer surface of the closure structure. This can further simplify the handling of the floor cleaning roller, if necessary, since this configuration not only enables the positive connection between the relevant latching structures to be loosened or re-created, the floor cleaning roller can also be operated due to a non-positive connection between the fingers of a user and the corresponding surfaces the closure structure can be easily removed from the nozzle housing. This may save you having to change your grip. In addition or as an alternative, an unnatural movement sequence can also be prevented.
Der Düse liegt so die Erkenntnis zugrunde, dass die Bodenreinigungswalze der Düse dadurch einfacher entnommen und wieder eingesetzt werden kann, indem die betreffenden Verrastungsstrukturen gerade so angeordnet sind, dass diese sich im Wesentlichen gegenüberliegen. Die beiden formschlüssigen Verrastungsstrukturen sind daher so ausgelegt, dass diese sich mittels eines Drucks aufeinander öffnen lassen. Dies entspricht aber gerade einer natürlichen Griffbewegung der Hand, weshalb das Entnehmen, das Handhaben und das Wiedereinsetzen der Bodenreinigungswalze vereinfacht werden können.The nozzle is thus based on the knowledge that the floor cleaning roller of the nozzle can be removed and reinserted more easily in that the relevant latching structures are arranged in such a way that they are essentially opposite one another. The two form-fitting latching structures are therefore designed in such a way that they can be opened on one another by means of pressure. However, this corresponds precisely to a natural grip movement of the hand, which is why the removal, handling and reinsertion of the floor cleaning roller can be simplified.
Hierbei ist die Bodenreinigungswalze mit der Verschlussstruktur im Wesentlichen über eine drehbare Lagerung fest verbunden. Sie stellt somit eine Baugruppe bzw. ein Bauteil dar, welches mit einer Hand bedienbar ist.Here, the floor cleaning roller is firmly connected to the closure structure essentially via a rotatable bearing. It thus represents an assembly or a component that can be operated with one hand.
Vorteilhafte Aus- und Weiterbildungen, welche einzeln oder in Kombination miteinander eingesetzt werden können, sind Gegenstand der abhängigen Ansprüche. Die Bezugszeichen in den Ansprüchen haben keine einschränkende Wirkung, sondern sollen lediglich deren Lesbarkeit verbessern.Advantageous training and further developments, which can be used individually or in combination with one another, are the subject of the dependent claims. The reference signs in the claims do not have a restrictive effect, but are only intended to improve their readability.
Bei einer Düse gemäß einem Ausführungsbeispiel können die erste Verrastungsstruktur und die erste Gegenverrastungsstruktur sowie die zweite Verrastungsstruktur und die zweite Gegenverrastungsstruktur einander in einem verriegelten Zustand derart hintergreifen, dass ein Bewegen der Bodenreinigungswalze zu dem Düsengehäuse entlang einer Entnahmerichtung unterbunden wird. Die erste Verrastungsstruktur und die zweite Verrastungsstruktur können durch ein Bewegen derselben entlang eines im Wesentlichen senkrecht zu der Entnahmerichtung verlaufenden Entriegelungspfads in einen unverriegelten Zustand gebracht werden, sodass die Bodenreinigungswalze zu dem Düsengehäuse entlang der Entnahmerichtung bewegbar ist.In a nozzle according to an embodiment, the first latching structure and the first counter-latching structure and the second latching structure and the second counter-latching structure can engage behind one another in a locked state in such a way that the floor cleaning roller is prevented from moving towards the nozzle housing along a removal direction. The first latching structure and the second latching structure can be brought into an unlocked state by moving them along an unlocking path running essentially perpendicular to the removal direction, so that the floor cleaning roller can be moved to the nozzle housing along the removal direction.
Bei einer solchen Düse kann die erste Verrastungsstruktur und/oder die erste Gegenverrastungsstruktur U-förmig ausgestaltet sein. Sie kann also eine Nut oder Sicke aufweisen, die von zwei entsprechenden Abschnitten der Verrastungsstruktur bzw. Gegenverrastungsstruktur gebildet wird. Hierdurch kann gegebenenfalls eine mechanisch stabilere und gegebenenfalls in zwei Richtungen formschlüssige Verbindung zwischen der Bodenreinigungswalze und dem Düsengehäuse geschaffen werden.In the case of such a nozzle, the first latching structure and / or the first counter-latching structure can be configured in a U-shape. It can therefore have a groove or bead which is formed by two corresponding sections of the latching structure or counter-latching structure. In this way, a mechanically more stable connection, possibly positive in two directions, can be created between the floor cleaning roller and the nozzle housing.
Bei einer solchen Düse kann die erste Verrastungsstruktur an einer Zunge der Verschlussstruktur angeordnet sein. Diese kann eine Länge entlang der Entnahmerichtung aufweisen, die größer als ihre Breite im Wesentlichen senkrecht zu der Entnahmerichtung und des Entriegelungspfads ist. So kann eine mechanisch vergleichsweise weiche und damit deutlich eindrückbare Verrastung erzielt werden, über die dem Benutzer klar signalisiert wird, dass dieser gerade die Bodenreinigungswalze aus dem Düsengehäuse entnimmt. Dies kann somit gegebenenfalls eine intuitivere Bedienung der Düse ermöglichen. Darüber hinaus kann ergänzend oder alternativ auch im Falle einer U-förmig ausgestalteten Verrastungsstruktur oder Gegenverrastungsstruktur eine mechanische Stabilität derselben verbessert werden, da aufgrund der weichen Ausgestaltung der ersten Verrastungsstruktur diese beim Bewegen entlang des Entriegelungspfads einen größeren Weg zurücklegt, sodass die einander hintergreifenden Abschnitte entlang des Entriegelungspfads länger ausgeführt werden können. Hierdurch kann also eine mechanische Stabilität der Verrastung gegebenenfalls verbessert werden.In such a nozzle, the first latching structure can be arranged on a tongue of the closure structure. This can have a length along the removal direction which is greater than its width essentially perpendicular to the removal direction and the unlocking path. In this way, a mechanically comparatively soft and thus clearly compressible locking can be achieved, via which the user is clearly signaled that he is currently removing the floor cleaning roller from the nozzle housing. This can thus enable a more intuitive operation of the nozzle if necessary. In addition or alternatively, in the case of a U-shaped locking structure or counter-locking structure, mechanical stability of the same can be improved, since due to the soft design of the first locking structure, it covers a greater distance when moving along the unlocking path, so that the sections engaging behind one another along the Unlocking path can be carried out longer. In this way, mechanical stability of the latching can be improved if necessary.
Bei einer solchen Düse gemäß einem Ausführungsbeispiel kann das Düsengehäuse eine Gleitstruktur aufweisen, die derart ausgebildet und angeordnet ist, dass bei einem Einführen der Bodenreinigungswalze die Zunge der Verschlussstruktur an dieser entlang geführt wird, bevor die erste Verrastungsstruktur mit der ersten Gegenverrastungsstruktur verrastet. Hierdurch kann gegebenenfalls im Falle eines Einführens der Bodenreinigungswalze, etwa nach einem Reinigen derselben, eine unbeabsichtigte Belastung der Zunge gegebenenfalls unterbunden werden. Die Gefahr einer Beschädigung der Zunge kann dadurch gegebenenfalls reduziert oder sogar vermieden werden. Bei einer solchen Düse kann die Gleitstruktur beispielsweise optional durch zwei Stege gebildet werden.In such a nozzle according to an exemplary embodiment, the nozzle housing can have a sliding structure which is designed and arranged in such a way that when the floor cleaning roller is inserted, the tongue of the closure structure is guided along it before the first latching structure latches with the first counter-latching structure. In this way, if the floor cleaning roller is inserted, for example after it has been cleaned, unintentional loading of the tongue can possibly be prevented. The risk of damaging the tongue can thereby possibly be reduced or even avoided. With such a nozzle, the sliding structure can, for example, optionally be formed by two webs.
Bei einer Düse gemäß einem Ausführungsbeispiel kann die zweite Verrastungsstruktur an einer weiteren Zunge der Verschlussstruktur angeordnet sein, die eine Länge entlang der Entnahmerichtung aufweist, die kleiner als ihre Breite im Wesentlichen senkrecht zu der Entnahmerichtung und des Entriegelungspfads ist. Hierdurch kann also eine Verrastung geschaffen werden, die eine geringere mechanische Flexibilität aufweist. Hierdurch kann es möglich sein, einerseits Bauraum einzusparen, sodass diese beispielsweise im Bereich einer Unterseite der Düse, welche während des Betriebs des Bodenreinigungsgeräts und der Düse typischerweise dem zum reinigenden Boden zugewandt ist, angeordnet werden. Darüber hinaus kann jedoch ebenso die zweite Verrastungsstruktur dazu verwendet werden, eine zusätzliche mechanische Verbindung der Bodenreinigungswalze mit dem Düsengehäuse zu schaffen, ohne dass dies jedoch von dem Benutzer sofort realisiert wird. Auch hierdurch kann also gegebenenfalls ergänzend oder alternativ eine Handhabung der Düse intuitiver ausgestaltet werden.In a nozzle according to an exemplary embodiment, the second latching structure can be arranged on a further tongue of the closure structure which has a length along the removal direction that is smaller than its width essentially perpendicular to the removal direction and the unlocking path. In this way, a locking can be created that has a lower mechanical flexibility. This makes it possible, on the one hand, to save installation space, so that they are arranged, for example, in the area of an underside of the nozzle which typically faces the floor to be cleaned during operation of the floor cleaning device and the nozzle. In addition, however, the second latching structure can also be used to create an additional mechanical connection between the floor cleaning roller and the nozzle housing, without this being realized immediately by the user, however. In this way as well, handling of the nozzle can therefore optionally be configured in a more intuitive way in addition or as an alternative.
Bei einer Düse gemäß einem Ausführungsbeispiel kann die Verschlussstruktur im Bereich der zweiten Verrastungsstruktur wenigstens eine Führungsnut oder einen Führungszapfen aufweisen, wobei das Düsengehäuse im Bereich der zweiten Gegenverrastungsstruktur entsprechend einen Führungszapfen bzw. eine Führungsnut aufweist. Hierdurch kann eine zusätzliche Stabilisierung gegenüber weiteren Kraftkomponenten, die auf die Verschlussstruktur, das Düsengehäuse und/oder die Bodenreinigungswalze einwirken, gegebenenfalls zusätzlich zu den entsprechenden Verrastungsstrukturen aufgenommen werden.In a nozzle according to an exemplary embodiment, the closure structure in the area of the second latching structure can have at least one guide groove or a guide pin, the nozzle housing correspondingly having a guide pin or a guide groove in the area of the second counter-latching structure. As a result, additional stabilization with respect to further force components that act on the closure structure, the nozzle housing and / or the floor cleaning roller can optionally be added to the corresponding latching structures.
Bei einer solchen Düse gemäß einem Ausführungsbeispiel kann die Führungsnut eine Ausnehmung aufweisen, die die zweite Verrastungsstruktur oder die zweite Gegenverrastungsstruktur bildet, und wobei der Führungszapfen entsprechend die zweite Gegenverrastungsstruktur bzw. die zweite Verrastungsstruktur bildet. Hierdurch kann also eine kompaktere Bauweise erzielbar sein, indem die gleichen Strukturen zur Schaffung der zweiten Verrastung und zur Aufnahme der zusätzlichen Kräfte verwendet werden.In such a nozzle according to an exemplary embodiment, the guide groove can have a recess which forms the second latching structure or the second counter-latching structure, and the guide pin correspondingly forms the second counter-latching structure or the second latching structure. In this way, a more compact design can be achieved in that the same structures are used to create the second latching and to absorb the additional forces.
Bei einer Düse gemäß einem Ausführungsbeispiel kann selbstverständlich auch eine Mehrzahl von zweiten Verrastungsstrukturen, eine Mehrzahl von zweiten Gegenverrastungsstrukturen und/oder eine Mehrzahl entsprechender Führungen mit jeweils einer Führungsnut und einem Führungszapfen implementiert werden.In the case of a nozzle according to an exemplary embodiment, a plurality of second latching structures, a plurality of second counter-latching structures and / or a plurality of corresponding guides, each with a guide groove and a guide pin, can of course also be implemented.
Bei einer Düse gemäß einem Ausführungsbeispiel kann die Bodenreinigungswalze ferner eine sich von der Verschlussstruktur weg verjüngende Führungsstruktur umfassen. Bei dieser kann das Düsengehäuse ferner eine Führungskante umfassen, wobei die Führungsstruktur und die Führungskante derart ausgebildet sind, dass diese bei einem Einführen der Bodenreinigungswalze in das Düsengehäuse eine Führung und/oder eine Zentrierung der Bodenreinigungswalze zu dem Düsengehäuse ermöglichen. Hierdurch kann gegebenenfalls eine Gefahr einer falschen Verrastung bzw. auch einer Verkantung der Bodenreinigungswalze und des Düsengehäuses reduziert werden. Ebenso kann gegebenenfalls das Einführen der Bodenreinigungswalze in das Düsengehäuse aufgrund der beschriebenen Wechselwirkung der Führungsstruktur und der Führungskante zueinander verbessert und damit vereinfacht werden.In a nozzle according to an exemplary embodiment, the floor cleaning roller can furthermore comprise a guide structure which tapers away from the closure structure. In this case, the nozzle housing can furthermore comprise a guide edge, the guide structure and the guide edge being designed in such a way that they enable the floor cleaning roller to be guided and / or centered relative to the nozzle housing when the floor cleaning roller is inserted into the nozzle housing. As a result, there may be a risk of incorrect latching or tilting the floor cleaning roller and the nozzle housing can be reduced. Likewise, if necessary, the introduction of the floor cleaning roller into the nozzle housing can be improved and thus simplified due to the described interaction of the guide structure and the guide edge with one another.
Bei einer solchen Düse gemäß einem Ausführungsbeispiel kann die Führungsstruktur einteilig oder mehrsegmentig ausgeführt sein. Alternativ oder ergänzend kann die Führungsstruktur im Wesentlichen konisch ausgeführt sein. Ebenso alternativ oder ergänzend kann sich die Führungsstruktur insgesamt über einen Winkel von wenigstens 90° und höchstens 359° um eine Entnahmerichtung herum erstrecken, wobei die Bodenreinigungswalze aus dem Düsengehäuse entlang der Entnahmerichtung entnehmbar ist. Durch diese Ausgestaltungen so nicht nur das Einführen bzw. Entnehmen der Bodenreinigungswalze aus dem Düsengehäuse verbessert werden, es kann vielmehr aufgrund der mehrsegmentigen und/oder nicht durchgängigen Ausführung der Führungsstruktur ein fehlerhaftes Einsetzen der Bodenreinigungswalze in das Düsengehäuse gegebenenfalls frühzeitig unterbunden werden.In such a nozzle according to an exemplary embodiment, the guide structure can be designed in one piece or in multiple segments. As an alternative or in addition, the guide structure can be designed to be essentially conical. As an alternative or in addition, the guide structure can extend over an angle of at least 90 ° and at most 359 ° around a removal direction, the floor cleaning roller being removable from the nozzle housing along the removal direction. These configurations not only improve the introduction or removal of the floor cleaning roller from the nozzle housing, but rather, due to the multi-segment and / or inconsistent design of the guide structure, incorrect insertion of the floor cleaning roller into the nozzle housing can be prevented at an early stage.
Bei einer Düse gemäß einem Ausführungsbeispiel kann die Verschlussstruktur einteilig mit einer im Wesentlichen konstanten Materialstärke ausgeführt sein. Ergänzend oder alternativ kann sie hierbei aus einem spritzgießfähigen Material, beispielsweise im Rahmen eines Spritzgießverfahrens, gefertigt sein. Hierdurch kann nicht nur eine Herstellung der Düse bzw. ihrer Verschlussstruktur vereinfacht werden, es kann gegebenenfalls im Zusammenhang mit den zuvor definierten Geometrien der Zunge und der weiteren Zunge eine leichtere Einstellung der elastischen Eigenschaften dieser Komponenten aufgrund ihrer Breiten und Längen erzielbar sein.In the case of a nozzle according to an exemplary embodiment, the closure structure can be designed in one piece with an essentially constant material thickness. In addition or as an alternative, it can be made of an injection-mouldable material, for example in the context of an injection molding process. This not only simplifies the manufacture of the nozzle or its closure structure, it can optionally be possible in connection with the previously defined geometries of the tongue and the further tongue to achieve easier adjustment of the elastic properties of these components due to their widths and lengths.
Hierbei kommt eine kraftschlüssige oder reibschlüssige Verbindung durch Haftreibung, eine stoffschlüssige Verbindung durch molekulare oder atomare Wechselwirkungen und Kräfte und eine formschlüssige Verbindung durch eine geometrische Verbindung der betreffenden Verbindungspartner zustande. Die Haftreibung setzt somit insbesondere eine Normalkraftkomponente zwischen den beiden Verbindungspartnern voraus. Ausführungsbeispiele können so eine Verbesserung eines Entnahme- bzw. Einsatzvorgangs der Bodenreinigungswalze aus der oder in die Düse eines Bodenreinigungsgeräts, also beispielsweise eines Staubsauger, ermöglichen.Here, 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.
Nachfolgend werden unter Bezugnahme auf die beigefügten Figuren Ausführungsbeispiele näher beschrieben und erläutert.
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Fig. 1 zeigt eine Aufsicht auf eine Düse gemäß einem Ausführungsbeispiel für ein Bodenreinigungsgerät, beispielsweise einen Staubsauger; -
Fig. 2 zeigt eine vergrößerte Seitenansicht der Düse 100 mit entfernter Bodenreinigu ngswalze; -
Fig. 3 zeigt eine vergrößerte Querschnittsdarstellung durch die Düse entlang einer Schnittebene, welche die erste Verrastungsstruktur und die erste Gegenverrastungsstruktur näher zeigt; und -
Fig. 4 zeigt eine vergrößerte Querschnittsdarstellung der Düse entlang einer Schnittebene, welche die zweite Verrastungsstruktur und die zweite Gegenverrastungsstruktur näher zeigt.
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Fig. 1 shows a plan view of a nozzle according to an embodiment for a floor cleaning device, for example a vacuum cleaner; -
Fig. 2 Fig. 10 shows an enlarged side view of thenozzle 100 with the floor cleaning roller removed; -
Fig. 3 shows an enlarged cross-sectional illustration through the nozzle along a sectional plane, which shows the first latching structure and the first counter-latching structure in more detail; and -
Fig. 4 shows an enlarged cross-sectional view of the nozzle along a sectional plane, which shows the second latching structure and the second counter-latching structure in more detail.
Bei der nachfolgenden Beschreibung der beigefügten Figuren, die Ausführungsbeispiele zeigen, bezeichnen gleiche Bezugszeichen gleiche oder vergleichbare Komponenten. Ferner werden zusammenfassende Bezugszeichen für Komponenten und Objekte verwendet, die mehrfach in einem Ausführungsbeispiel oder in einer Zeichnung auftreten, jedoch hinsichtlich eines oder mehrerer Merkmale gemeinsam beschrieben werden. Komponenten oder Objekte, die mit gleichen oder zusammenfassenden Bezugszeichen beschrieben werden, können hinsichtlich einzelner, mehrerer oder aller Merkmale, beispielsweise ihrer Dimensionierungen, gleich, jedoch gegebenenfalls auch unterschiedlich ausgeführt sein, sofern sich aus der Beschreibung nicht etwas anderes explizit oder implizit ergibt.In the following description of the attached figures, which show exemplary embodiments, the same reference symbols designate the same or comparable components. Furthermore, summarizing reference symbols are used for components and objects that appear several times in an exemplary embodiment or in a drawing, but are described jointly with regard to one or more features. Components or objects that are described with the same or summarizing reference symbols can be the same with regard to individual, several or all features, for example their dimensions, but possibly also be carried out differently, unless the description explicitly or implicitly results in something else.
Die Düse 100 weist hierbei ein Düsengehäuse 110 und eine Bodenreinigungswalze 120 auf, von der jedoch bei der in
Die Verschlussstruktur 130 kann hierbei beispielsweise aus einem spritzgießfähigen Material, beispielsweise einem spritzgießfähigen Kunststoff, gefertigt sein. Es kann sich so um ein Spritzgießteil handeln, also um ein Bauteil, welches im Rahmen eines Spritzgießverfahrens hergestellt wurde. Die Verschlussstruktur 130 wird, da sie auch zur Verrastung der Bodenreinigungswalze 120 dient, auch kurz als Walzenverrastung bezeichnet.The
Wie die nachfolgende Erörterung noch zeigen wird, weist die Verschlussstruktur 130 hierbei eine erste und eine zweite Verrastungsstruktur auf, denen entsprechend eine erste und eine zweite Gegenverrastungsstruktur zugeordnet sind, die als Teil des Düsengehäuses 110 ausgeführt, also in diesem umfasst sind. Die Verschlussstruktur 130 weist zum Bedienen der entsprechenden Verrastungsstrukturen jeweils einen Entriegelungsabschnitt 160 auf, von dem in
Das Düsengehäuse 110 und die Bodenreinigungswalze 120 sind nun gerade derart ausgestaltet, dass über die Einführöffnung 140, welche in
Der Entriegelungsabschnitt 160-1 zeigt hierbei eine Lage der ersten Verrastungsstruktur (nicht gezeigt in
Bei der Düse 100 handelt es sich genauer gesagt um eine sogenannte Turbodüse, bei der mittels einer Luftströmung eine Turbine bewegt oder angetrieben wird, die über einen entsprechenden Antriebsmechanismus, der beispielsweise Zahnriemenscheiben, Zahnriemen und andere Komponenten umfassen kann, den in
Wie nachfolgend im Zusammenhang mit den
Die Bodenreinigungswalze 120 wird hierbei im Rahmen des Einführens durch die Einführöffnung 140 in einen Einführungsbereich 200 eingeführt, welcher beispielsweise auf einer der Seitenfläche 150 abgewandten Seite des Düsengehäuses 110 eine entsprechende Aufnahme und Führung des Walzenkörpers der Bodenreinigungswalze 120 umfasst.The
Darüber hinaus zeigt
Darüber hinaus weist das Düsengehäuse 110 zwei zweite Gegenverrastungsstrukturen 260-1, 260-2 auf, die im vorliegenden Fall als Führungsnuten 270-1, 270-2 ausgeführt sind und ebenfalls aufgrund ihrer im Zusammenhang mit
Das Düsengehäuse 110 weist darüber hinaus eine Führungskante 280 auf, die derart ausgebildet und angeordnet ist, dass diese zusammen mit einer sich verjüngenden Führungsstruktur der Bodenreinigungswalze 120 eine Führung derselben beim Einführen in das Düsengehäuse 110 bewirkt. Die Führungskante 280 ist im vorliegenden Fall im Wesentlichen kreissegmentförmig ausgestaltet und weist einen Winkel von etwa 270° auf, bezüglich dessen sie sich um die Entnahmerichtung 180 symmetrisch zu der Lage der ersten Gegenverrastungsstruktur 210 zu beiden Seiten erstreckt.The
Wie bereits zuvor im Zusammenhang mit
Selbstverständlich bewegt sich hierbei die Zunge 300 zusammen mit der ersten Verrastungsstruktur 290 im Wesentlichen auf einem kreisbogenförmigen Entriegelungspfad 310. Da jedoch die Strecke, um die sich die erste Verrastungsstruktur 290 entlang des Entriegelungspfads 310 bewegt, nur gering ist, kann dieser in guter Näherung als gerade Linie angenommen werden, wie dies auch in
Lediglich der Vollständigkeit halber soll an dieser Stelle darauf hingewiesen werden, dass die erste Verrastungsstruktur 290 und ihre zugehörige erste Gegenverrastungsstruktur 210 auch als obere Verrastung bezeichnet werden, da diese an einer Oberseite des Düsengehäuses 110 angeordnet sind.Merely for the sake of completeness, it should be pointed out at this point that the
Lediglich der Vollständigkeit halber sie an dieser Stelle noch darauf hingewiesen, dass
An einer dem Entriegelungsabschnitt 160-1 abgewandten bzw. gegenüberliegenden Seite der Verschlussstruktur 130 zeigt
Während
Die auch als untere Verrastung bezeichneten zweiten Verrastungsstrukturen 360 und ihre entsprechenden zweiten Gegenverrastungsstrukturen 260 sind hierbei abweichend von der ersten Verrastungsstruktur 290 und der ersten Gegenverrastungsstruktur 210 ausgeführt. Wie bereits die Darstellung der
Um die Verrastung der zweiten Verrastungsstruktur 360 und ihrer entsprechenden zweiten Gegenverrastungsstruktur 260 zu ermöglichen, weist die zweite Gegenverrastungsstruktur 260 einen Vorsprung 410 auf, welcher in eine Ausnehmung 420 in dem Zapfen 400 bzw. dem entsprechenden Abschnitt 390 der zweiten Verrastungsstruktur 360 eingebracht ist. Entlang des Entriegelungspfads 310 weisen daher die beiden zweiten Verrastungsstrukturen 360 eine deutlich geringere Überlappfläche mit ihren entsprechenden zweiten Gegenverrastungsstrukturen 260 auf, als dies im Falle der ersten Verrastungsstruktur 290 und der ersten Gegenverrastungsstruktur 210 der Fall ist. Die zweiten Verrastungsstrukturen 360 dienen daher nicht zuletzt der zusätzlichen Sicherung bzw. der Unterstützung der Sicherung der Verschlussstruktur 130 gegenüber einem Herausrutschen.In order to enable the locking of the
Bei einer Düse 100 gemäß einem Ausführungsbeispiel kann so die Bodenreinigungswalze 120, die kurz auch als Bürstenwalze bezeichnet wird, seitlich durch die Einführöffnung 140 im Wesentlichen mit einem Handgriff entnommen werden. Hierfür drückt der Benutzer der Düse 100 die Verschlussstruktur 130, die auch als Walzenverrastung bezeichnet wird, mittels Daumen und einem weiteren Finger zusammen und kann anschließend die Bodenreinigungswalze 120 aus der Düse 100 bzw. ihrem Düsengehäuse 110 heraus ziehen. Die Bürstenwalze ist hierbei mit der Verschlussstruktur 130 drehbar verbunden und wird dabei mit herausgezogen.In the case of a
Bei dem erneuten Einsetzen der Bodenreinigungswalze 120 in den im Wesentlichen rund ausgeführten Einführungsbereich 200 an der Seite der Düse 100 trägt die als Führungskonus ausgeführte Führungsstruktur 330 dazu bei, dass die Verschlussstruktur nur in einer Position einrasten kann. Hierdurch finden sich die Verrastungsstrukturen im Wesentlichen selbstständig und eine Gefahr einer falschen Orientierung derselben, also eine Möglichkeit, die betreffenden Verrastungsstrukturen falsch miteinander zu verrasten, wird signifikant verringert. Die Führungsstruktur 330 (Führungskonus) läuft hierbei an der Führungskante 270 entlang und zentriert hierbei die Verschlussstruktur 130. Die Führungsstruktur ist - wie zuvor erläutert wurde - bei dem hier gezeigten Ausführungsbeispiel kreisförmig über einen Winkel von etwa 270° des Einführungsbereichs 200 gestaltet. Zusätzlich hierzu sitzen im unteren Bereich des Einführungsbereichs 200 die zwei Führungsnuten 270, in die zwei Führungen der Verschlussstruktur 130 eingeführt werden. In diesen Führungsnuten 270 sind zwei Rastpunkte, die in zwei Aussparungen bzw. Ausnehmungen 420 der Verschlussstruktur 130 einrasten, vorgesehen. Diese Rastpunkte bilden die unteren Verrastungen, also die zweiten Verrastungsstrukturen 360.When the
Im oberen Bereich der Verschlussstruktur 130 ist die als U-Rastung ausgeführte erste Verrastungsstruktur 290 implementiert, die in eine Nase bzw. einen Vorsprung 220 im Düsengehäuse 110 einrastet. Diese bildet die obere Verrastung der Verschlussstruktur 130. Beide Verrastungen sorgen zusammen dafür, dass die Bodenreinigungswalze 120 während des Arbeitens nicht seitlich aus der Düse 100 herausfallen kann. Die beiden formschlüssigen Verrastungen sind hierbei so ausgelegt, dass sich diese mittels Druck aufeinander zu öffnen lassen, was einer natürlichen Griffbewegung der Hand entspricht. Hierdurch kann es möglich sein, die Bodenreinigungswalze 120 der Düse 100 einfacher zu entnehmen und einfacher wieder einzusetzen, als dies im Fall konventioneller Düsen der Fall ist. Ein Ausführungsbeispiel einer Düse 100 ermöglicht so eine Bürstenwalzenverrastung einer Turbodüse oder einer anderen Düse 100 durch eine Selbstausrichtung bzw. Selbstfindung.In the upper region of the
Ausführungsbeispiele können so eine Verbesserung eines Entnahme- bzw. Einsatzvorgangs der Bodenreinigungswalze aus der oder in die Düse eines Bodenreinigungsgeräts, also beispielsweise eines Staubsauger, ermöglichen.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.
Die in der vorstehenden Beschreibung, den Ansprüchen und den Zeichnungen offenbarten Merkmale können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung in ihren verschiedenen Ausgestaltungen von Bedeutung sein.The features disclosed in the above description, the claims and the drawings can be important both individually and in any combination for the implementation of the invention in its various configurations.
- 100100
- Düsejet
- 110110
- DüsengehäuseNozzle housing
- 120120
- BodenreinigungswalzeFloor cleaning roller
- 130130
- VerschlussstrukturClosure structure
- 140140
- EinführöffnungInsertion opening
- 150150
- SeitenflächeSide face
- 160160
- EntriegelungsabschnittUnlocking section
- 170170
- OberflächenstrukturSurface structure
- 180180
- EntnahmerichtungDirection of removal
- 190190
- SaugraumSuction chamber
- 200200
- EinführungsbereichIntroductory area
- 210210
- erste Gegenverrastungsstrukturfirst Gegenverrastungsstruktur
- 220220
- Vorsprunghead Start
- 230230
- AusnehmungRecess
- 240240
- GleitstrukturSliding structure
- 250250
- Stegweb
- 260260
- zweite Gegenverrastungsstruktursecond Gegenverrastungsstruktur
- 270270
- FührungsnutGuide groove
- 280280
- FührungskanteLeading edge
- 290290
- erste Verrastungsstrukturfirst latching structure
- 300300
- Zungetongue
- 310310
- EntriegelungspfadUnlocking path
- 320320
- Vertiefungdeepening
- 330330
- FührungsstrukturManagement structure
- 340340
- Lagerwarehouse
- 350350
- weitere Zungeanother tongue
- 360360
- zweite Verrastungsstruktursecond latching structure
- 370370
- Abschnittsection
- 380380
- Abschnittsection
- 390390
- Abschnittsection
- 400400
- ZapfenCones
- 410410
- Vorsprunghead Start
- 420420
- AusnehmungRecess
Claims (11)
- Nozzle (100) for a floor cleaning appliance, for example a vacuum cleaner, with the following features:a nozzle housing (110) with an insertion opening (140) arranged at least partially on a side area (150); anda floor cleaning roller (120) that can be removed from the nozzle housing (110) via the insertion opening (140) and can be re-inserted into the nozzle housing (110) via the insertion opening (140),wherein the floor cleaning roller (120) has a substantially cylindrical roller body section and a closure structure (130) for the insertion opening (140) that is mounted such that it can rotate in relation to the roller body section,wherein the closure structure (130) has a first latching structure (290) and a second latching structure (360) that lies substantially opposite the first latching structure (290); andwherein the nozzle housing (110) comprises a first mating latching structure (210) assigned to the first latching structure (290) and a second mating latching structure (260) assigned to the second latching structure (360), which are embodied so as to enable a positive connection between the nozzle housing (110) and the closure structure (130) that can be released and re-established,characterised in thatthe first latching structure (290), the second latching structure (360), the first mating latching structure (210) and the second mating latching structure (260) are embodied and arranged such that they release the floor cleaning roller (120) by pressing on unlocking sections (160), which lie substantially opposite one another, on an outer area of the closure structure (130).
- Nozzle (100) according to claim 1, characterised in that the first latching structure (290) and the first mating latching structure (210), as well as the second latching structure (360) and the second mating latching structure (260), engage behind one another in a locked state in such a way that the floor cleaning roller (120) is prevented from moving in relation to the nozzle housing (110) along a removal direction (180), wherein the first latching structure (290) and the second latching structure (360) can be brought into an unlocked state by moving the same along an unlocking path (310) that runs substantially perpendicularly to the removal direction (180), so that the floor cleaning roller (120) can be moved in relation to the nozzle housing (110) along the removal direction (180).
- Nozzle (100) according to claim 2, characterised in that the first latching structure (290) and/or the first mating latching structure (210) are embodied in a U-shaped manner.
- Nozzle (100) according to one of claims 2 or 3, characterised in that the first latching structure (290) is arranged on a tab (300) of the closure structure (130), which has a length along the removal direction (180) that is larger than its width substantially perpendicularly to the removal direction (180) and of the unlocking path (310).
- Nozzle (100) according to claim 4, characterised in that the nozzle housing (110) has a sliding structure (240) that is embodied and arranged such that, when the floor cleaning roller (120) is inserted, the tab (300) of the closure structure (130) is guided along it, before the first latching structure (290) latches to the first mating latching structure (210).
- Nozzle (100) according to one of the preceding claims, characterised in that the second latching structure (360) is arranged on a further tab (350) of the closure structure (130), which has a length along the removal direction (180) that is smaller than its width substantially perpendicularly to the removal direction (180) and of the unlocking path (310).
- Nozzle (100) according to one of the preceding claims, characterised in that the closure structure (130) has at least one guide slot (270) or a guide pin in the region of the second latching structure (360), wherein the nozzle housing (110) accordingly has a guide pin (400) or a guide slot, respectively, in the region of the second mating latching structure (260).
- Nozzle (100) according to claim 7, characterised in that the guide slot (400) has a recess (420), which forms the second latching structure (360) or the second mating latching structure (260), and wherein the guide pin (400) accordingly forms the second mating latching structure (260) or the second latching structure (360).
- Nozzle (100) according to one of the preceding claims, characterised in that the floor cleaning roller (120) further comprises a guide structure (330) that tapers away from the closure structure (130), and in which the nozzle housing (110) comprises a guide edge (280), wherein the guide structure (330) and the guide edge (280) are embodied such that they enable a guiding and/or a centring of the floor cleaning roller (120) in relation to the nozzle housing (110) when inserting the floor cleaning roller (120) into the nozzle housing (110).
- Nozzle (100) according to claim 9, characterised in that the guide structure (330) is designed in a one-piece or multi-segment manner, in which the guide structure (330) has a substantially conical design, and/or in which the guide structure (330) overall extends over an angle of at least 90° and at most 359° about a removal direction (180), wherein the floor cleaning roller (120) can be removed from the nozzle housing (110) along the removal direction (180).
- Nozzle (100) according to one of the preceding claims, characterised in that the closure structure (130) is designed with a substantially constant material thickness, for example as part of an injection moulding method, and/or is manufactured from an injection-mouldable material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012207356A DE102012207356A1 (en) | 2012-05-03 | 2012-05-03 | Nozzle for a floor cleaning device |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2659816A2 EP2659816A2 (en) | 2013-11-06 |
EP2659816A3 EP2659816A3 (en) | 2017-08-30 |
EP2659816B1 true EP2659816B1 (en) | 2021-07-21 |
Family
ID=48190268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13165523.5A Active EP2659816B1 (en) | 2012-05-03 | 2013-04-26 | Nozzle for a floor cleaning machine |
Country Status (2)
Country | Link |
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EP (1) | EP2659816B1 (en) |
DE (1) | DE102012207356A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018201350A1 (en) * | 2018-01-30 | 2019-08-01 | Vorwerk & Co. Interholding Gmbh | Attachment for a vacuum cleaner |
WO2023152163A1 (en) | 2022-02-08 | 2023-08-17 | Alfred Kärcher SE & Co. KG | Floor cleaning device with a pivot bearing unit with an abutment |
DE102022133009A1 (en) | 2022-02-08 | 2023-08-10 | Alfred Kärcher SE & Co. KG | Floor cleaning device with pivot bearing device with counter bearing |
DE102022133004A1 (en) | 2022-12-12 | 2024-06-13 | Alfred Kärcher SE & Co. KG | Floor cleaning device with floor head with wall |
DE102022133006A1 (en) | 2022-12-12 | 2024-06-13 | Alfred Kärcher SE & Co. KG | Floor cleaning device with dirt fluid tank with two areas |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4139693A1 (en) | 1991-12-02 | 1993-06-03 | Siemens Ag | Vacuum cleaner with roller body arranged in mouthpiece housing permitting replacement - has roller held by spindle or shaft located at least at one side in semicircular recess of bearing element fixed at housing with shaft end held in recess by catch |
US6226832B1 (en) * | 1998-04-23 | 2001-05-08 | Matsushita Home Appliance Corporation Of America | Easy maintenance vacuum cleaner |
ATE269657T1 (en) * | 1999-12-10 | 2004-07-15 | Tecnica Internat S R L | CLEANING DEVICE WITH REPLACEABLE BRUSH |
IT1310795B1 (en) * | 1999-12-10 | 2002-02-22 | Vidoni Mario | CLEANING APPARATUS WITH INTERCHANGEABLE BRUSH |
DE102004046383B4 (en) * | 2004-09-24 | 2009-06-18 | Stein & Co Gmbh | Device for brushing roller of floor care appliances |
DE102005024748A1 (en) | 2005-02-24 | 2006-08-31 | Leifheit Ag | Carpet cleaner with rotating brushes, comprising locking mechanism for securing and release of brush |
GB201003603D0 (en) | 2010-03-04 | 2010-04-21 | Dyson Technology Ltd | A vacuum cleaning head |
-
2012
- 2012-05-03 DE DE102012207356A patent/DE102012207356A1/en not_active Ceased
-
2013
- 2013-04-26 EP EP13165523.5A patent/EP2659816B1/en active Active
Also Published As
Publication number | Publication date |
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EP2659816A3 (en) | 2017-08-30 |
EP2659816A2 (en) | 2013-11-06 |
DE102012207356A1 (en) | 2013-11-07 |
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