EP3417750A1 - Buse de sol pour aspirateur et aspirateur - Google Patents

Buse de sol pour aspirateur et aspirateur Download PDF

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Publication number
EP3417750A1
EP3417750A1 EP18175659.4A EP18175659A EP3417750A1 EP 3417750 A1 EP3417750 A1 EP 3417750A1 EP 18175659 A EP18175659 A EP 18175659A EP 3417750 A1 EP3417750 A1 EP 3417750A1
Authority
EP
European Patent Office
Prior art keywords
suction mouth
floor nozzle
impact contour
contour
suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18175659.4A
Other languages
German (de)
English (en)
Inventor
Markus Penner
Benjamin Rodax
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP3417750A1 publication Critical patent/EP3417750A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a floor nozzle for a vacuum cleaner for cleaning and care of floor surfaces, having a housing which has an underside facing in the processing position of the bottom surface on which an elongated, extending transversely to the processing direction suction mouth is arranged, wherein the suction mouth in the machine direction by at least one front suction mouth edge and at least one rear suction mouth edge is limited, wherein the suction mouth forms an opening to a suction position in the processing position above the suction mouth, wherein the suction mouth is connected to a suction channel.
  • the invention relates to a vacuum cleaner with such a floor nozzle.
  • vacuum cleaners are used to clean surfaces such as textile floor coverings and smooth floors.
  • a floor nozzle of the vacuum cleaner is continuously pushed back and forth on a floor surface for dust absorption.
  • the dust absorption efficiency of the vacuum cleaner depends strongly on the design of the floor nozzle.
  • the design of the floor nozzle plays an increasingly important role.
  • the dimensioning of vacuum cleaner fans follows a trend towards less power, which initially results in lower volume flows available at the floor nozzle, so that due to the continuity relationship at the floor nozzles, generally lower flow rates result.
  • the floor nozzles are adapted in particular by additional lips on the suction mouths to the lower volume flows.
  • a floor nozzle for a floor care device known, in which case designed as a pivotable lip suction mouth behind the suction mouth of the nozzle spreads the carpet pile when sweeping in order to clean the carpet deep volume with lower volume flows can.
  • a floor nozzle with trained as a pivotable lips so-called Saugmundkanten known.
  • a disadvantage of the solutions described here is that the sliding resistance is increased by the lips.
  • the sliding resistance on the bottom surface is increased such that this, in particular on long-pile carpets, resulting in an unpleasant and stressful handling of the vacuum cleaner and the floor nozzle for the user.
  • a disadvantage of the solutions described here is also that the dirt particles dissolved by the Saugmundkanten be sucked only partially and thus inefficient.
  • the dirt particles dissolved by the suction mouth edges are loosened against the direction of movement of the suction mouth edge and only partially removed by suction from the suction mouth space.
  • dirt particles are ejected contrary to the direction of movement of the suction mouth edge by Burtonschnellende carpet fibers.
  • the ejected dirt particles only partially reach the transporting suction air stream, a significant proportion of the dissolved dirt particles is not removed from the suction mouth, but inevitably lands after a bounce on the Saugmundraumwand again on the floor surface to be cleaned and is re-incorporated into the carpet fiber. Since this already dissolved dust is brought back into contact with the bottom surface and caught here, an effective dust pickup is not guaranteed. At best, the already dissolved dust is redissolved by re-processing the bottom surface through the suction mouth and picked up by the floor nozzle. However, as a result of this, multiple detachments of the dirt particles from the carpet fibers are necessary so that the dust absorption is not effective and optimum cleaning of the substrate is thus not guaranteed.
  • the invention thus presents the problem of providing an improved floor nozzle and an improved vacuum cleaner.
  • a floor nozzle with the features of claim 1 and a vacuum cleaner according to claim 15. Characterized in that in the suction mouth in the processing direction behind the front Saugmundkante one of the front Saugmundkante associated impact contour and / or arranged in the processing direction in front of the rear Saugmundkante one of the rear Saugmundkante associated impact contour, the floor nozzle can absorb very effectively dissolved dirt particles and so effective dust uptake, especially on carpets. As a result, effective cleaning of the bottom surface with sufficiently high flow velocities can be achieved even with low volume flows.
  • the dust absorption efficiency can be increased thereby, without causing a significant increase in the pushing forces.
  • the required flow rate for a effective cleaning can be further reduced, so that more economical blower can be installed in the vacuum cleaner.
  • the reduction of the volume flows also leads to lower flow losses, especially in bagless separators, so that further energy can be saved here.
  • the arrangement of one of the front Saugmundkante associated impact contour behind the front suction mouth allows that bounce through the front Saugmundkante in a forward movement of the floor nozzle in the machining direction dirt particles targeted at the associated impact contour.
  • the arrangement of the rear suction mouth edge associated impact contour in front of the rear Saugmundkante allows that bounced by the rear suction mouth edge in a backward movement of the floor nozzle in the machine direction targeted dirt particles bounce off the associated impact contour.
  • a targeted rebound of dissolved dirt particles can be achieved both in a forward movement and in a backward movement of the floor nozzle in the machine direction.
  • the floor surface may be covered by a textile floor covering such as a carpet or carpet or by a hard floor such. As a wood parquet, laminate or PVC flooring are formed.
  • the vacuum cleaner may have a fan for generating a negative pressure, through which the floor nozzle guided over a floor surface to be cleaned receives dust and dirt from the floor surface.
  • the floor nozzle is moved back and forth by the user by means of push and pull movements in the machine direction.
  • the floor nozzle slides over the floor surface to be cleaned.
  • the user can handle for example a connected to the suction pipe handle of the vacuum cleaner.
  • the suction mouth is elongated and extends substantially transversely to the machining direction.
  • elongated means that the preferably substantially rectangular suction mouth has a greater length transversely to the machining direction than the width in the machining direction.
  • the suction mouth is preferably between 20 and 30 cm across the processing direction long and preferably between one and 3 cm wide in the machine direction.
  • the floor nozzle can also be arranged on a self-propelled vacuum cleaner, in particular suction robot, so that the machining direction of the floor nozzle corresponds to the direction of travel of the self-propelled vacuum cleaner.
  • a vacuum cleaner housing of the vacuum cleaner may have a dust receiving chamber in which the dust received via the floor nozzle can be collected, for example, in a dust bag.
  • the impact contour extends along the suction mouth.
  • An impact contour extending along the suction mouth offers an effective possibility of collecting the dirt particles dissolved by the suction mouth that delimits the suction mouth. If the impact contour extends essentially over the entire length of the suction mouth, a particularly high level of dust absorption is ensured by the floor nozzle.
  • an advantageous embodiment is that the impact contour is formed so that bounce through one of the suction mouth edges of the bottom surface dissolved dirt particles on the associated impact contour in the direction of the suction channel.
  • the bouncing in the direction of the suction channel ensures that dissolved dirt particles can not escape via the suction mouth from the floor nozzle again.
  • a renewed soiling of the already cleaned floor surface is prevented by the dissolved dirt particles. Dirt particles released from the floor surface thus pass directly into the suction channel via the suction air flow and are effectively removed from the floor nozzle.
  • the impact contour is formed as a concave wall aligned with the associated suction mouth edge.
  • the concave contour running to the associated suction mouth edge allows targeted impact processes in the suction mouth by the dissolved dirt from the Saugmundkanten. In this way, dissolved dirt particles can safely be transported away via the suction air flow of the suction channel from the floor nozzle. Due to the concave profile, it can be ensured that a majority of the dirt particles impinging on the impact contour rebound deliberately in the direction of the suction channel.
  • the impact contour has a wall of planar sections, which are connected to each other at at least one angular point, wherein an interpolation of the angular points is aligned concavely to the associated suction mouth edge.
  • the concave portions of the impact contour which are aligned concisely with the associated suction mouth edge, enable a targeted impact process of the dirt particles in the suction mouth space which are released by the suction mouth edges. As a result, dissolved dirt particles can be transported safely out of the floor nozzle via the suction air flow of the suction channel.
  • one of the front Saugmundkante associated impact contour is active in a forward movement of the floor nozzle in the machining direction and / or one of the rear suction mouth edge associated impact contour is active in a backward movement of the floor nozzle in the machine direction.
  • dirt particles are excellently detached from the front suction mouth edge.
  • dirt particles are loosened especially from the rear suction mouth edge.
  • the active use of the associated impact contour in the forward movement or backward movement increases the dust absorption when working on the floor surface. Dust pickup is particularly effective when the impact contour associated with the front suction mouth edge is in use in a forward movement and an impact contour associated with the rear suction mouth edge is used in a backward movement of the floor nozzle.
  • An advantageous embodiment of the invention provides that the impact contour is pivotally suspended in the suction mouth.
  • the pivotable suspension of the impact contour in the suction mouth space offers, for example, the possibility of aligning the impact contour depending on the movement, direction or speed of the floor nozzle in the machining direction.
  • the impact contour can also pivot depending on the givenness of the floor surface. This can be done automatically or by manual adjustments of the user to the floor nozzle.
  • one of the front suction mouth edge associated impact contour in a forward movement of the floor nozzle in the machining direction is pivoted into an active position and / or a rear suction mouth edge associated impact contour in a backward movement of the floor nozzle in the machining direction is pivoted into an active position.
  • the pivoting of the impact contour in an active position ensures that the impact contour is optimally aligned with the movement of the floor nozzle and allows a targeted rebound of dissolved by the suction mouth edge dirt particles in the direction of the suction channel.
  • a preferred embodiment provides that an impact contour assigned to the front suction mouth edge can be pivoted into a passive position in the machine direction in the reverse direction and / or an impact contour assigned to the rear suction mouth edge can be pivoted into a passive position in a forward movement of the floor nozzle in the machine direction.
  • the swiveling of the impact contour into a passive position makes it possible to swivel the impact contour, which is not in use during the respective movement of the floor nozzle, as far as possible out of the suction air flow in order to minimize flow losses.
  • the impact contour is aligned in the active position so that bounce through one of the Saugmundkanten of the bottom surface dissolved dirt particles on the associated impact contour in the direction of the suction channel.
  • the orientation of the impact contour used in this way provides a reliable way to safely remove the dissolved dirt particles via the suction air stream present in the suction channel.
  • An advantageous embodiment of the invention provides that one of the front suction mouth edge associated impact contour and the rear suction mouth edge associated impact contour are pivoted together.
  • the joint pivoting of the impact contours offers the possibility to achieve an optimal alignment of the two impact contours by a pivoting movement.
  • the front suction mouth edge associated impact contour and the rear suction mouth edge associated impact contour are formed on a pivotally suspended in the suction mouth pivot member.
  • a suspended in the suction mouth swivel element is a simple way to align the two impact contours by a pivoting component.
  • the impact contours arranged on the pivoting element are thus positioned by a simple pivoting movement so that they allow rebounding operations of the dirt particles released by the associated suction mouth edge in the direction of the suction channel.
  • the impact contour is formed so that the pivoting element is suspended in the machining direction centrally between the front suction mouth edge and the rear suction mouth edge in the suction mouth.
  • the central suspension of the pivoting element between the two Saugmundkanten allows a same orientation of the pivotal element arranged impact contours relative to the respective associated suction mouth edge in forward and backward movement of the floor nozzle.
  • the impact contour has a shape which promotes dust absorption through the suction channel.
  • Such an impact contour ensures that dissolved dirt particles reliably reach the suction channel where they are transported away via the suction air flow.
  • the dissolved dirt particles usually impinge on the impact contour in a certain angular range, wherein the accelerated by the ejection of the carpet fibers dirt particles usually rebound at about the same rebound angle of the impact contour, such as impact the impact contour at impact angle.
  • the subject matter of the invention is a vacuum cleaner for cleaning and care of floor surfaces with a fan for generating a negative pressure for receiving dirt by means of an air flow and a separation system for cleaning the air taken from the dirt, wherein the already described in more detail below vacuum cleaner and a floor nozzle according to has the previous and following description.
  • FIG. 1 shows a vacuum cleaner 2 according to the invention with a connected to the vacuum cleaner 2 floor nozzle 1.
  • the vacuum cleaner 1 shown in the embodiment is a so-called canister vacuum cleaner.
  • the floor nozzle 1 is connected here via its connecting piece 19 with a preferably telescopically designed intake manifold 26.
  • the floor nozzle 1 in this embodiment shown on a separate from the vacuum cleaner housing 21, 21 a housing 3.
  • the telescopic suction tube 26 merges into a handle 27, to which a suction hose 16 is connected, which is connected to the vacuum cleaner housing 21, 21 a.
  • An electric connection cable 22 is used to operate a blower (not shown) of the vacuum cleaner 2 (not shown) in the vacuum cleaner housing 21, 21a in order to generate a negative pressure.
  • a blower not shown
  • dirt and dirt are removed from the floor surface 30 ( Fig. 2 . 3 . 6 . 8th u. 9) by an air flow over the suction mouth 6 (FIG. Fig. 4 ) of the floor nozzle 1 and transported via the suction pipe 26 and the suction hose 16 into the housing 21, 21 a of the vacuum cleaner 2.
  • a separation system 24 which in the exemplary embodiment is designed as a dust bag. This separation system 24 is located in a formed by the housing parts 21 and 21a of the vacuum cleaner 2 dust chamber 25.
  • This dust chamber 25 is shown by a folding mechanism between the vacuum cleaner housing parts 21 and 21a accessible and open, so that the separation system 24 is visible and removable.
  • the dust chamber 25 is closed and generates a negative pressure.
  • the air flow generated by the negative pressure is freed of dirt and dirt in the separation system 24 and led out of the vacuum cleaner 2 via an exhaust grille 23.
  • this treadle 18 includes switches that are large enough for a user to manipulate with their foot.
  • the treadle circuit 18 usually also has a switch for actuating the automatic winder for the connection cable 22 (not shown) integrated in the vacuum cleaner housing 21, 21a (not shown).
  • the handle 27 On the handle 27 is also a manual circuit 17, with the functions of the vacuum cleaner 2 can be activated. In addition, the vacuum cleaner 2 can be switched on and off via the manual circuit 17 and power levels of the blower (not shown) can be selected. A user of the vacuum cleaner 1 can take this on the handle 27 and so the floor nozzle 1 in a by means of a push and pull movement in the double arrow marked Move the machining direction 5 back and forth to move the bottom surface 30 (FIG. Fig. 3 . 5 . 6 u. 7) to clean. In this case, the floor nozzle 1 slides over the floor surface 30 to be cleaned (FIG. Fig. 3 . 5 . 6 u. 7). Especially with long-pile carpets, the underside slides 4 ( Fig.
  • the floor nozzle 1 also supporting elements 20 in the form of wheels, which has a defined distance of the bottom 4 (FIG. Fig. 4 ) to the floor surfaces 30 ( Fig. 3 . 5 . 6 u. 7) and ensure easy handling when pushing back and forth the floor nozzle 1.
  • FIG. 2 shows a floor nozzle 1 in a front view, ie from the view of the machining direction 5.
  • the housing 3 of the floor nozzle 1 has a connecting piece 19, via which a vacuum cleaner 2 (FIG. Fig. 1 ) can be connected to the floor nozzle 1.
  • a vacuum cleaner 2 FIG. Fig. 1
  • FIG. 2 is a sectional plane AA along the processing direction 5 shown by the bottom nozzle 1, which serves in the following the further explanation.
  • FIG. 3 is a sectional view according to section plane AA ( Fig. 2 ) of a floor nozzle 1, as known from the prior art.
  • the floor nozzle 1 is in a forward movement in the machining direction 5, ie the floor nozzle 1 is moved by the user in the illustration shown from right to left.
  • the front suction mouth edge 7 of the suction mouth 6 located in the sliding sole 4 spreads the carpet fibers 32 on the floor surface 30 to be cleaned when the carpet pile passes over, so that adhering dirt particles 31 are ejected from the carpet fibers 32.
  • the resulting by the ejection of the dirt particles 31 trajectory of the dirt particles 31 is indicated by dashed lines.
  • FIG. 4 is a floor nozzle 1 according to the invention for a vacuum cleaner 2 ( Fig. 1 ) is shown in a perspective side view.
  • the suction mouth 8 is located in the processing position above the transverse to the machining direction 5 suction mouth 6.
  • the suction mouth 6 is limited by a front suction mouth edge 7 and a rear suction mouth edge 7a in the machine direction 5.
  • the suction channel 9 formed by the connecting piece 19 of the floor nozzle 1 connects.
  • In the machining direction 5 behind the front suction mouth edge 7 there is a front suction mouth edge 7 associated impact contour 10.
  • the impact contour 10 is attached to a pivotally mounted in the suction chamber 8 pivoting element 13.
  • the pivoting of the pivoting element 13 in the suction mouth 8 is achieved via the suspension 14 of the pivoting element 13 in the suction mouth 8.
  • Behind the pivoting element 13, the rear suction mouth edge 7a can be seen, which has an impact contour 10a (not visible in this illustration).
  • Fig. 5 is assigned to the pivot member 13.
  • the impact contours 10, 10 a are arranged jointly pivotable on the pivoting element 13.
  • the pivoting element 13 is suspended centrally in the machining direction 5 between the front suction mouth edge 7 and the rear suction mouth edge 7a in the suction mouth space 8.
  • the impact contours 10, 10a extend along the elongated suction mouth 6 transversely to the machining direction 5.
  • the visible impact contour 10 is formed such that through the front suction mouth edge 7 of the bottom surface 30 (FIGS. Fig. 5 ) dissolved dirt particles 31 ( Fig. 5 ) rebound from the impact contour 10 in the suction mouth 8 in the direction of the suction channel 9.
  • the illustrated impact contour 10 has a concave to the front suction mouth edge 7 aligned wall. This shape of the impact contour 10 favors the dust intake through the suction channel.
  • FIG. 5 shows schematically a floor nozzle 1 according to the invention FIG. 4 for a vacuum cleaner 2 ( Fig. 1 ) for cleaning and maintaining floor surfaces 30 ( Fig. 4 ) in a sectional view.
  • the suction mouth 8 of the floor nozzle 1 is shown cut through the sectional view.
  • the sectional view shows that the floor nozzle 1 with the sliding sole of the underside 4 sweeps from right to left over the carpet fibers 32 in a forward movement in the machining direction 5.
  • the carpet fibers 32 are bent from the front suction mouth edge 7 of the suction mouth 6 and adhering dirt particles 31 are thrown out of the carpet fibers 32 according to the dashed trajectories.
  • the impact contour 10 is arranged in the machining direction 5 behind the associated front suction mouth edge 7, so that during a forward movement of the floor nozzle 1 in the machining direction 5 ejected from the front suction mouth 7 dirt particles 31 bounce off the associated impact contour 10 in the direction of the suction channel 9.
  • the trajectories after rebounding from the impact contour 10 are indicated by arrows. As can be seen, the dirt particles 31 strike the impact contour 10 in a larger angular range.
  • the rebound angle of the impact contour 10 corresponds in this case essentially to the impact angle to the impact contour 10 concave shape of the impact contour 10 relative to the associated suction mouth edge 7, the dirt particles 31 are deflected even at a larger angle range for the impact angle in the direction of the suction channel 9 and reliably detected by the Saugluftströmung 33 and transported away from the floor nozzle 1.
  • the impact contour 10 should have a radius of 100 mm to 1000 mm, preferably 120 mm to 160 mm.
  • the lower region of the impact contour 10 should have a radius of 10 mm to 50 mm, preferably 18 mm to 22 mm.
  • the impact contour 10 is formed on a centrally disposed in the suction mouth 6 element.
  • the suction mouth edges 7, 7a should have a spacing of 20 mm to 40 mm, preferably 25 mm to 35 mm.
  • the rigid element with the impact contour 10 should have a height of about 15 mm to 40 mm, preferably 20 mm to 30 mm.
  • the element bottom should be set back relative to the suction mouth edges 7, 7a by up to 5 mm, preferably by 1.5 mm, ie be arranged higher in the machining position.
  • the element bottom should have a convex curvature with respect to the bottom surface 30 with a radius of 10 mm to 200 mm, preferably 25 mm to 100 mm.
  • the element arranged centrally between the suction mouth edges 7, 7a also has a concave impact contour 10a, which is associated with the rear suction mouth edge 7a.
  • the width of the element between the impact contours 10, 10a should increase to a maximum of 10 mm to 20 mm, preferably 14 mm to 18 mm, in the lower region.
  • the impact contour 10 assigned to the front suction mouth edge 7 is active and diverts the dirt particles 31 dissolved in the machine direction 5 by the forward movement of the floor nozzle 1 in the direction of the suction channel 9.
  • the impact contour 10a associated with the rear suction mouth edge 7a is not active in the illustrated forward movement of the floor nozzle 1 in the machining direction 5.
  • the element having the impact contours 10, 10a is in accordance with the embodiment FIG. 5 not pivotable, so that the position of the impact contours 10, 10a with respect to the associated suction mouth edges 7, 7a does not change.
  • FIG. 6 shows schematically a floor nozzle 1 according to the invention FIG. 4 for a vacuum cleaner 2 ( Fig. 1 ) for cleaning and care of floor surfaces 30 in sectional view according to the in FIG. 2 Plotted sectional plane AA.
  • the sectional view shows that the floor nozzle 1 with the sliding sole of the underside 4 sweeps from right to left over the carpet fibers 32 in a forward movement in the machining direction 5.
  • the carpet fibers 32 are bent from the front suction mouth edge 7 of the suction mouth 6 and adhering dirt particles 31 are thrown out of the carpet fibers 32 according to the dashed trajectories.
  • the execution differs according to FIG. 6 in that the active impact contour 10 is pivoted by the forward movement of the floor nozzle 1 in an active position.
  • the impact contour 10 is arranged on a centrally suspended in the suction mouth 8 swivel element 13.
  • the pivoting element 13 should be suspended.
  • An eccentric suspension is also possible, this should be the distance of the suspension 13 from the center between the Saugmundkanten 7, 7 a maximum of 10 mm.
  • the suction mouth edges 7, 7a should have a spacing of 20 mm to 40 mm, preferably 25 mm to 35 mm.
  • the pivoting element 13 should have a height of about 15 mm to 40 mm, preferably 20 mm to 30 mm.
  • the pivoting element 13 touches with the pivot element bottom 28, the carpet fibers 32 of the bottom surface 30 and thus triggers the drawn pivoting movement.
  • the pivot element bottom 28 should be set back relative to the suction mouth edges 7, 7a by up to 5 mm, preferably by 1.5 mm, ie be arranged higher in the machining position.
  • the pivot element bottom 28 should have a convex curvature relative to the bottom surface 30 with a radius of 10 mm to 200 mm, preferably 25 mm to 100 mm.
  • the possible pivoting angle for this pivotal movement should be between 10 degrees and 30 degrees, preferably between 20 degrees and 25 degrees, from that in FIG. 5 shown rest position lie.
  • the impact contour 10 assigned to the front suction mouth edge 7 is aligned in such a way that dirt particles 31 dissolved from the bottom surface 30 rebound in the direction of the suction channel 9.
  • the dirt particles 31 which are detached from the front suction mouth edge 7 reliably bounce in the direction of the suction channel 9 through the wall of the impact contour 10 which is aligned concavely with respect to the front suction mouth edge 7.
  • the impact contour 10 should have a radius of 100 mm to 1000 mm, preferably 120 mm to 160 mm.
  • the lower region of the impact contour 10 should have a radius of 10 mm to 50 mm, preferably 18 mm to 22 mm.
  • the pivoting element 13 suspended centrally between the suction mouth edges 7, 7a also has an impact contour 10a associated with the rear suction mouth edge 7a.
  • the width of the element between the impact contours 10, 10a should increase to a maximum of 10 mm to 20 mm, preferably 14 mm to 18 mm, in the lower region on the pivot element bottom 28.
  • the second impact contour 10a corresponds in shape to the first impact contour 10. This impact contour 10a is pivoted by the forward movement of the floor nozzle 1 in the machining direction 5 into a passive position. By pivoting the passive impact contour 10a on the pivot element 13 can be ensured that flow losses are largely reduced.
  • FIG. 7 shows a further side view of the floor nozzle 1 in a sectional view.
  • this sectional view is easy to see that the floor nozzle 1 in a Backward movement is in the machining direction 5, ie in the representation in a movement from left to right.
  • the swept from the bottom 4 carpet fibers 32 are bent up by the rear suction mouth edge 7a. This dissolves dirt particles 31 which adhere to the carpet fibers 32 and which are thrown out of the carpet fibers 32 according to the trajectories drawn in dashed lines.
  • the execution differs according to FIG. 7 in that the active impact contour 10a is pivoted by the rearward movement of the floor nozzle 1 into an active position.
  • the pivoting element 13 touches with the pivot element bottom 28, the carpet fibers 32 of the bottom surface 30 and thus triggers the drawn pivoting movement in the backward movement of the floor nozzle 1.
  • the possible pivoting angle for this pivotal movement should be between 10 degrees and 30 degrees, preferably between 20 degrees and 25 degrees, from that in FIG. 5 shown rest position lie.
  • the impact contour 10 a associated with the rear suction mouth edge 7 a is aligned in such a way that dirt particles 31 dissolved from the bottom surface 30 rebound in the direction of the suction channel 9.
  • the wall of the impact contour 10a which is aligned concavely with respect to the rear suction mouth edge 7a, the dirt particles 31 released from the rear suction mouth edge 7a reliably collide in the direction of the suction channel 9.
  • This impact contour 10 is pivoted by the backward movement of the floor nozzle 1 in the machining direction 5 in a passive position. The pivoting movement of the passive impact contour 10 on the pivoting element 13 ensures that flow losses are largely reduced.
  • FIG. 8 discloses a sectional view through a floor nozzle according to the invention 1 according to the in FIG. 2 Plotted sectional plane AA.
  • the exemplary embodiment illustrated here differs in that the impact contours 10, 10a shown here have a wall of planar sections 11, 11a which are connected to each other at at least one angular point 12a, wherein an interpolation of the angular points 12, 12a, 12b is concave to the associated suction mouth edge 7, 7a is aligned.
  • the impact processes of the dirt particles 31 described above in relation to the concave walls can also be realized in the direction of the suction channel 9 by means of impact contours 10, 10a configured in this way.
  • the angle between the two impact contours 10, 10a at the angle 12b should be up to 40 degrees, preferably between 10 degrees and 20 degrees.
  • the angle of the lower portion 11 of the impact contours 10, 10a should be compared to the bottom surface 30 in the rest position 20 degrees to 80 degrees, preferably 40 degrees to 50 degrees.
  • the invention is not limited to the illustrated embodiments. Further embodiments are possible without departing from the basic idea.
  • the floor nozzle 1 may also be formed as part of a self-propelled vacuum cleaner.
EP18175659.4A 2017-06-20 2018-06-04 Buse de sol pour aspirateur et aspirateur Withdrawn EP3417750A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017113466.2A DE102017113466A1 (de) 2017-06-20 2017-06-20 Bodendüse für Staubsauger und Staubsauger

Publications (1)

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EP3417750A1 true EP3417750A1 (fr) 2018-12-26

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EP18175659.4A Withdrawn EP3417750A1 (fr) 2017-06-20 2018-06-04 Buse de sol pour aspirateur et aspirateur

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EP (1) EP3417750A1 (fr)
DE (1) DE102017113466A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019103651A1 (de) * 2019-02-13 2020-08-13 Alfred Kärcher SE & Co. KG Bodendüse für ein Reinigungsgerät mit Saugfunktion, Reinigungsgerät und Verfahren zum Absaugen eines Bodenbereichs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB855613A (en) * 1958-09-18 1960-12-07 Hoover Ltd Improvements relating to suction nozzles
JPH1189759A (ja) * 1997-09-16 1999-04-06 Sanyo Electric Co Ltd 床用吸込具
DE60001818T2 (de) * 1999-04-29 2003-12-11 Seb Sa Staubsaugermundstück mit abstreifleiste

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3801757A1 (de) 1988-01-22 1989-07-27 Wessel Werk Gmbh Staubsaugerduese
DE102014208080A1 (de) 2014-04-29 2015-10-29 BSH Hausgeräte GmbH Staubsaugerdüse
DE102014012347B3 (de) * 2014-08-25 2015-11-19 Severin Floorcare Gmbh Bodendüse für Staubsauger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB855613A (en) * 1958-09-18 1960-12-07 Hoover Ltd Improvements relating to suction nozzles
JPH1189759A (ja) * 1997-09-16 1999-04-06 Sanyo Electric Co Ltd 床用吸込具
DE60001818T2 (de) * 1999-04-29 2003-12-11 Seb Sa Staubsaugermundstück mit abstreifleiste

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