EP3050475A1 - Buse d'aspiration pour surfaces dures - Google Patents

Buse d'aspiration pour surfaces dures Download PDF

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Publication number
EP3050475A1
EP3050475A1 EP16151819.6A EP16151819A EP3050475A1 EP 3050475 A1 EP3050475 A1 EP 3050475A1 EP 16151819 A EP16151819 A EP 16151819A EP 3050475 A1 EP3050475 A1 EP 3050475A1
Authority
EP
European Patent Office
Prior art keywords
suction
sealing elements
flow
functional position
openings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16151819.6A
Other languages
German (de)
English (en)
Other versions
EP3050475B1 (fr
Inventor
Horst Dilger
Klaus-Dieter Riehl
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.)
Wessel Werk GmbH
Original Assignee
Wessel Werk GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wessel Werk GmbH filed Critical Wessel Werk GmbH
Publication of EP3050475A1 publication Critical patent/EP3050475A1/fr
Application granted granted Critical
Publication of EP3050475B1 publication Critical patent/EP3050475B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
    • A47L9/064—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor
    • A47L9/0653—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor with mechanical actuation, e.g. using a lever
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools

Definitions

  • the invention relates to a suction nozzle for sucking hard floor surfaces with a nozzle body having on its underside a recess formed as a suction mouth and opening into the suction mouth suction channel for discharging a suction flowing into the suction air stream, and with sealing elements, in the working direction before and after the Suction mouth are arranged and protrude at the bottom of the nozzle body. At least the sealing element arranged in the working direction in front of the suction mouth has flow-through openings for sucking up dirt particles.
  • the suction channel may be connected to the suction head fixed or pivotable about a tilt axis. At the rear end of the suction channel may further be provided a Saugrohran gleich Swiss which is pivotally connected to the suction channel.
  • a suction nozzle for canister vacuum cleaner with the features described above is out DE 10 2008 012 889 B4 known.
  • the arranged in the working direction in front of the suction mouth sealing element of the known suction nozzle has for receiving coarse dirt particles throughflow.
  • larger dirt particles which may in particular have a particle diameter of more than 2 mm, pass through the flow openings of the front-side sealing element under the suction mouth, where they are detected by the air flow and removed by the suction channel.
  • the flow-through openings of the sealing element arranged in the working direction in front of the suction mouth can be closed.
  • the suction head on a displaceable or pivotally mounted in the nozzle body sealing element, by the actuation of the Flow openings of the front-side sealing element can be closed.
  • the deterioration of the suction properties on hard floor surfaces is particularly pronounced when the suction nozzle is used in conjunction with a low-performance suction device both for sucking smooth floor surfaces and for sucking uneven floor surfaces and tiled floor surfaces.
  • Smooth floor surfaces are especially parquet and laminate floors as well as polished natural stone floors.
  • Tiled floor surfaces are understood to be hard floors interspersed with joints several millimeters wide. Uneven hard floor surfaces are, for example, cellar floors, stone floors in outdoor facilities and staircases, plastic floors with textured surfaces and the like.
  • the invention has for its object to provide a suction nozzle for sucking hard floor surfaces, in conjunction with a low-power suction device on both grooved or uneven Hard floors as well as on smooth hard floor surfaces has good suction properties and absorbs dry, finely divided dirt particles well.
  • a low-power suction fan in particular, a suction fan with an electrical power consumption of less than 900 watts is to be regarded in this context.
  • the object of the invention and solution of this problem is a suction nozzle for sucking hard floor surfaces according to claim 1.
  • the basic structure of the suction nozzle includes a nozzle body having on its underside a recess formed as a suction mouth and a suction opening into the suction port for discharging a suction flowing into the suction air suction, and sealing elements, which are arranged in the working direction in front of and behind the suction mouth and on projecting from the bottom of the nozzle body. At least the sealing element arranged in the working direction in front of the suction mouth has flow-through openings for sucking up dirt particles.
  • a shielding device for changing the free flow cross section of the flow opening is provided, which is switchable by means of a arranged on the nozzle body switching element between a first functional position for sucking smooth hard floor surfaces and a second functional position for sucking uneven hard floor surfaces and / or tile floors, the free total flow cross section of Throughflow openings in the second functional position is less than 200 mm 2 , preferably less than 150 mm 2 , and is smaller than in the first functional position.
  • the free total flow cross-section of the flow-through resulting from the sum of uncovered columns and / or uncovered openings, preferably in the longitudinal direction of the sealing element in a possible uniform distribution are provided.
  • the feature is realized when the air permeability corresponds to an opening having a cross section of less than 200 mm 2 , preferably less than 150 mm 2 .
  • the suction space below the nozzle is effectively sealed outwards in order to maintain the suction vacuum, but without obstructing the suction of dirt particles too much.
  • the values according to the invention with respect to the free total flow cross section of the flow openings take into account the fact that with a movement of the suction nozzle over grooved and uneven hard floor surfaces air flows into the suction of the suction nozzle, which are sucked on the recesses of joints and bumps and dirt particles from the joints and entrain adjacent floor areas. If the suction nozzle according to the invention is used for sucking smooth hard floor surfaces, the shielding device releases a larger overall free flow cross section of the flow openings.
  • the shielding device for changing the free flow cross section of the flow openings is in the first functional position for sucking smooth hard floor surfaces, the free flow cross section of the flow openings at least by a factor of 1.5 greater than in the second functional position, for the suction of tile floors and uneven Hard floor surfaces is provided.
  • the flow-through openings of the sealing element arranged in the working direction in front of the suction mouth have a free total flow cross-section between 20 mm 2 and 120 mm 2 , if the shielding device is in the second functional position for sucking uneven hard floor surfaces and / or tile floors.
  • the flow-effective free total flow cross-section of the sealing element is preferably 100 mm 2 to 300 mm 2 .
  • An advantageous embodiment of the suction nozzle according to the invention provides that the two arranged in the suction direction in front of and behind the suction mouth sealing elements are designed as bearing sealing elements and each have flow openings for sucking dirt particles and that the shielding device acts on both sealing elements, wherein the free total flow cross-section of the flow openings in the second functional position on both sealing elements is less than 200 mm 2 , preferably less than 150 mm 2 , and is smaller than the free flow cross section in the first functional position of the shielding device.
  • the aforementioned information for the free total flow cross section of the provided in the sealing elements flow openings based on a working width of the nozzle body of not more than 350 mm and apply to sealing elements with a length between 200 mm and 300 mm.
  • a working width of the nozzle body of not more than 350 mm and apply to sealing elements with a length between 200 mm and 300 mm.
  • the suction mouth, the sealing elements and the lateral Saugraumbegrenzisme limit a suction chamber at the bottom of the nozzle body, the is circumferentially sealed off, wherein suction air flows through bottom-side flow openings between the front seal member and a flat bottom surface and between the rear seal member and the bottom surface.
  • the lateral Saugraumbegrenzonnegrenzonne therefore have an air inlet opening or end above the lower edge of the sealing elements, wherein they define a bottom air inlet opening.
  • the lateral boundaries of an air-impermeable element and have a lower edge, which is located 2 mm to 5 mm above the lower edge of the sealing elements.
  • the lower edge may be formed in particular as a straight edge.
  • the air inlet openings at the ends of the suction mouth regardless of the functional position of the shielding effect, so that both when sucking smooth hard floor surfaces as well as sucking tile floors or uneven hard floor surfaces at the ends of the suction chamber sufficient air flow for transporting the in the dirt mouth entering the suction mouth is ready.
  • the suction mouth expediently has a rectangular base.
  • the depth of the suction mouth preferably changes from the mouth region to the ends of the suction mouth.
  • the change in the cross-sectional profile can be chosen so that the flow velocity within the suction mouth remains approximately constant from the ends of the suction mouth to the mouth region of the suction channel.
  • the working direction in front and behind the suction mouth arranged sealing elements are suitably aligned parallel to each other and preferably arranged at the boundary of the suction mouth.
  • the sealing elements are expediently designed as load-bearing strip-shaped sealing elements.
  • they may consist of bristle strips with a dense bristle stocking.
  • a dense bristle lining is present when the bristle strip is opaque in the side view and contains no gaps through which air can freely flow from the outside into the suction space.
  • the sealing elements may consist of strips of textile material or felt.
  • the strip-shaped sealing elements have a width of less than 20 mm and preferably a width of 5 mm to 15 mm. These can have bottom-side notches or a bottom-side profile with recesses.
  • a first embodiment provides that the shielding device has a vertically adjustable carrier and sealing lips attached thereto, wherein the flow openings of the sealing elements can be at least partially closed by a lifting movement of the carrier.
  • the sealing lips directly adjoin the sealing elements.
  • the vertically adjustable support with the sealing lips attached thereto may be disposed on the outside of the nozzle body or within the space enclosed by the nozzle body and the sealing elements.
  • the sealing elements provided with flow openings are at a vertical attached adjustable support which is adjustable as part of the shielding between a first functional position for sucking smooth hard floor surfaces and a second functional position for sucking uneven hard floor surfaces and / or tile floors, and the nozzle body has arranged on the underside sealing lips, which are arranged vertically adjustable sealing elements are adjacent and at least partially close the flow openings of the sealing elements when the carrier is in the second functional position.
  • the shielding device has slidably mounted or pivotably mounted sealing strips, by the actuation of which the flow-through openings of the sealing elements can be closed.
  • the suction nozzle shown in the figures has a nozzle body 1, which has on its underside a suction mouth 2 designed as a recess and a suction channel 3 opening into the suction mouth for discharging one into the Suction mouth 2 incoming suction air flow has.
  • the nozzle body 1 is equipped with sealing elements 4, 4 ', which are arranged in front of and behind the suction mouth in the working direction and project on the underside of the nozzle body 1.
  • 2 lateral Saugraumbegrenzonne 5 are arranged at the ends of the suction mouth, which bridge the distance between the front seal member 4 and the rear seal member 4 '.
  • the suction mouth 2, the sealing elements 4, 4 'and the lateral Saugraumbegrenzonne 5 define a suction chamber on the underside of the nozzle body.
  • the shielding device 7 is by means of a arranged on the nozzle body 1 switching element between a first functional position I for sucking smooth hard bottom surfaces and a second functional position II for Suction of uneven hard floor surfaces and / or tile floors switchable.
  • the shielding device 7 can according to the in Fig. 3 illustrated schematic representation of a vertically adjustable support 8 and attached thereto sealing lips 9, wherein by a Lifting movement of the carrier 8, the flow openings 6 in the sealing elements 4, 4 'are at least partially closed. According to a in Fig.
  • the shielding 7 are provided with flow openings 6 for sucking dirt particles provided sealing elements 4, 4 'on a vertically adjustable support 8', which as part of the shielding 7 between a first functional position I for sucking smooth hard floor surfaces and a second functional position II is adjustable for sucking uneven hard floor surfaces and / or tile floors.
  • the nozzle body 1 has sealing lips 9 'arranged on the underside, which are adjacent to the vertically adjustable sealing elements 4, 4' and at least partially close the throughflow openings 6 of the sealing elements 4, 4 'when the carrier 8' is in the second functional position 11 ,
  • the free total flow cross section of the flow openings 6 at each sealing element 4, 4 'less than 200 mm 2 and preferably less than 150 mm 2 , when the shielding device is in the second functional position II and the suction nozzle for sucking Tile floors and / or uneven hard floor surfaces should be used.
  • the free total flow cross section of the throughflow openings 6 is smaller than the free total flow cross section, which is assigned to the first functional position I of the shielding device 7.
  • the numerical parameters mentioned are to be regarded as realized when the air permeability of the consisting of the sealing element 4, 4 'and the shielding device 7 under the same test conditions of the air permeability of an opening with a cross section of less than 200 mm 2 , preferably less than 150 mm 2 corresponds.
  • An embodiment is advantageous in that the throughflow openings 6 of the sealing element 4 arranged in the working direction in front of the suction mouth 2 have a free total flow cross section between 20 mm 2 and 120 mm 2 , if the shielding device is in the second functional position II for sucking uneven hard floor surfaces and / or Tiled floors is located.
  • the rear in the suction direction sealing element 4 ' is designed accordingly.
  • the sealing elements 4, 4 'rest on a smooth bottom surface and the shielding device 7 is in the second functional position II.
  • the free total flow cross-section of the flow-through openings 6 is preferably greater by a factor of 1.5 to 3.
  • the lateral Saugraumbegrenzonnegrenzonne 5 include an air inlet opening or end above the lower edge of the sealing elements 4, 4 '.
  • the lateral Saugraumbegrenzonne 5 of an air-impermeable element and have a straight lower edge, which is 2 mm to 5 mm above the lower edge of the sealing elements 4, 4 'is arranged.
  • the air inlet openings at the ends of the suction mouth 2 are effective regardless of the functional position of the shielding device 7 acting on the flow-through openings 6 of the sealing elements 4, 4 '.
  • the functional position of the shielding device 7 does not affect the air inlet openings at the ends of the suction mouth 2.
  • the suction mouth 2 of the suction nozzle has a width B measured transversely to the working direction between 200 mm and 300 mm, preferably a width between 200 mm and 260 mm.
  • the measured from the lower edge of the sealing elements 4, 4 'height of the suction chamber is outside an opening region of the suction channel 3 at least in end suction openings, each extending from one end of the suction mouth 2, over a length L of 60 mm, at least 4 mm and a maximum 20 mm.
  • the distance a between the front sealing element 4 and the rear sealing element 4 ' is at least 15 mm and a maximum of 50 mm, preferably a maximum of 40 mm.
  • sealing elements 4, 4 'arranged in front of and behind the suction mouth 2 are aligned parallel to one another and arranged on the edge of the suction mouth 2.
  • sealing elements 4, 4 'bristle strips with a dense bristle trim strips of textile material and felt strips can be used.
  • the suction channel 3 opens at a side surface of the suction mouth 2 in the suction mouth and connects horizontally to the nozzle body 1.
  • An angular tube member 10 is rotatably connected to the suction channel 3.
  • a suction tube and / or a suction hose can be connected, which connects the suction nozzle with a suction device, not shown.
  • the suction nozzle shown in the figures is suitable for vacuuming smooth hard floor surfaces and tiled floor surfaces and uneven hard floor surfaces, wherein the suction properties of the suction nozzle by means of the shielding device 7, which affects the free total flow cross section of existing at the sealing elements 4, 4 'through-flow openings 6, can be adjusted.
  • the suction nozzle can be operated in particular in combination with a suction device, which has a suction fan with an electrical power consumption of less than 900 watts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP16151819.6A 2015-01-29 2016-01-19 Buse d'aspiration pour surfaces dures Active EP3050475B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015101339.8A DE102015101339A1 (de) 2015-01-29 2015-01-29 Saugdüse zum Saugen von Hartbodenflächen

Publications (2)

Publication Number Publication Date
EP3050475A1 true EP3050475A1 (fr) 2016-08-03
EP3050475B1 EP3050475B1 (fr) 2020-11-18

Family

ID=55182233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16151819.6A Active EP3050475B1 (fr) 2015-01-29 2016-01-19 Buse d'aspiration pour surfaces dures

Country Status (3)

Country Link
EP (1) EP3050475B1 (fr)
DE (1) DE102015101339A1 (fr)
HU (1) HUE053355T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018100416A1 (de) * 2018-01-10 2019-07-11 Vorwerk & Co. Interholding Gmbh Saugdüse für einen Staubsauger und Staubsauger zur Reinigung eines Bodens
CN212996291U (zh) * 2018-02-12 2021-04-20 宁波汇峰嘉福科技有限公司 一种地毯刷
DE102018211735A1 (de) * 2018-07-13 2020-01-16 BSH Hausgeräte GmbH Bodendüse für einen Staubsauger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002026098A1 (fr) * 2000-09-28 2002-04-04 Dyson Limited Outil de plancher pour nettoyer des surfaces de plancher a l'aspirateur
WO2003063673A1 (fr) * 2002-01-25 2003-08-07 Alton James R Ensemble d'embout d'aspirateur comportant des conduits de nettoyage des bords
DE102008012889A1 (de) * 2008-03-06 2009-09-10 Wessel-Werk Gmbh Saugdüse für Bodenstaubsauger
EP2105078A2 (fr) * 2008-03-27 2009-09-30 Wessel-Werk Gmbh Bas d'aspiration pour un aspirateur de sol
EP2875765A1 (fr) * 2013-11-21 2015-05-27 BSH Hausgeräte GmbH Suceur d'aspiration pour un aspirateur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0126494D0 (en) * 2001-11-03 2002-01-02 Dyson Ltd A floor tool
EP1595485B1 (fr) * 2004-05-10 2007-03-28 Wessel-Werk GmbH & Co. KG Buse d'aspiration pour aspirateur
DE202007007348U1 (de) * 2007-04-03 2007-10-25 Gimpel, Emilia Staubsaugerdüse für Hochflor-Teppiche

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002026098A1 (fr) * 2000-09-28 2002-04-04 Dyson Limited Outil de plancher pour nettoyer des surfaces de plancher a l'aspirateur
WO2003063673A1 (fr) * 2002-01-25 2003-08-07 Alton James R Ensemble d'embout d'aspirateur comportant des conduits de nettoyage des bords
DE102008012889A1 (de) * 2008-03-06 2009-09-10 Wessel-Werk Gmbh Saugdüse für Bodenstaubsauger
DE102008012889B4 (de) 2008-03-06 2012-04-19 Wessel-Werk Gmbh Saugdüse für Bodenstaubsauger
EP2105078A2 (fr) * 2008-03-27 2009-09-30 Wessel-Werk Gmbh Bas d'aspiration pour un aspirateur de sol
EP2875765A1 (fr) * 2013-11-21 2015-05-27 BSH Hausgeräte GmbH Suceur d'aspiration pour un aspirateur

Also Published As

Publication number Publication date
EP3050475B1 (fr) 2020-11-18
DE102015101339A1 (de) 2016-08-04
HUE053355T2 (hu) 2021-06-28

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