EP2320783B1 - Staubsauger - Google Patents

Staubsauger Download PDF

Info

Publication number
EP2320783B1
EP2320783B1 EP09782651A EP09782651A EP2320783B1 EP 2320783 B1 EP2320783 B1 EP 2320783B1 EP 09782651 A EP09782651 A EP 09782651A EP 09782651 A EP09782651 A EP 09782651A EP 2320783 B1 EP2320783 B1 EP 2320783B1
Authority
EP
European Patent Office
Prior art keywords
filter cage
suction
vacuum cleaner
suction head
accordance
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.)
Not-in-force
Application number
EP09782651A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2320783A1 (de
Inventor
Steffen Layer
Bernd Kiesling
Maic Hensel
Ullrich Rauleder
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co 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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP2320783A1 publication Critical patent/EP2320783A1/de
Application granted granted Critical
Publication of EP2320783B1 publication Critical patent/EP2320783B1/de
Not-in-force 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/127—Dry filters tube- or sleeve-shaped
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1409—Rigid filtering receptacles

Definitions

  • the invention relates to a vacuum cleaner with a dirt collecting container and an attachable to the dirt collecting suction head having at least one suction unit is connected via a suction inlet with the dirt collecting in flow connection, wherein at the suction inlet a dipping into the dirt collecting filter cage is arranged on which a filter element detachably fixable is.
  • Such vacuum cleaners are out US 2008/127449 A1 known. They allow the suction of a surface, such as a floor surface.
  • a dirt collecting container of at least one suction unit can be subjected to negative pressure.
  • the suction unit is part of an attachable to the dirt collecting suction head and is connected via a suction inlet of the suction head with the dirt collecting in flow communication.
  • the dirt collecting container has a suction connection, to which a suction hose can be connected, which carries a nozzle at the free end for sucking off the surface. From the at least one suction unit, a suction flow is generated so that suction air laden with dirt particles can be sucked into the dirt collecting container via the suction hose.
  • the suction air flows through a filter element, which is detachably fixable to a filter cage, which is arranged at the suction inlet.
  • the filtered suction air then flows to at least one suction unit and is discharged from the latter via at least one suction outlet, which is arranged on the suction head, to the environment.
  • the vacuum cleaner is designed as a wet-dry vacuum, so that not only dry suction air are sucked but it can also be sucked a liquid from a surface and transferred to the dirt collector.
  • the suction head can be removed from the dirt collector.
  • the user vertically aligned the suction head removed from the dirt collecting container, d. H. with the filter cage projecting downwards on the floor surface. This involves the risk that the suction head then falls over and is damaged because the filter cage only allows a very unstable position of the suction head.
  • the user should instead tilt the suction head and place it on the floor surface on the long side.
  • Object of the present invention is therefore to develop a vacuum cleaner of the generic type such that the risk is reduced that the user turns off the suction head for emptying the dirt collector vertically aligned on a floor surface.
  • a vacuum cleaner of the type mentioned according to the invention that radially projecting from the underside of the filter cage to the central axis of a support member projects. If the user tries to lift the suction head in a vertical orientation, ie pointing downwards Filter cage to park on a floor surface, so contacted first, the support element, the bottom surface. This is arranged radially offset from the central axis of the filter cage. This has the consequence that acting on the suction head a tilting moment and thereby the user is not possible to turn off the suction head vertically aligned. Rather, the user is forced to tilt the suction head and place it longitudinally on the floor surface.
  • the support member may be designed, for example, pin or pin-shaped.
  • the filter cage is preferably cylindrical. In this case, the center axis of the filter cage coincides with its cylinder axis.
  • the filter cage can only be fixed in a predetermined mounting position on the suction inlet, in which the support element assumes a specific angular position relative to the central axis.
  • a certain angular position for the support element ensures that the suction head while trying to turn it off on the support element, experiences a tilting moment in a constructively predetermined direction, so that the suction head is easily brought by the user in a predetermined lateral position in the the suction head is placed on the floor surface.
  • the predetermined orientation of the support element must be during assembly of the filter cage at the suction inlet get noticed. It is therefore advantageous if the filter cage can be fixed to the suction inlet at all only in a predetermined mounting position, because this prevents incorrect alignment of the filter cage from the outset.
  • interlocking coding elements are arranged on a mounting rim surrounding the suction inlet and on an end section of the filter cage facing the mounting edge, which enclose the mounting position of the filter cage.
  • the coding elements may be formed for example in the form of a projection and an associated receptacle.
  • the coding elements preferably engage in one another in a form-fitting manner.
  • the coding elements may for example be aligned parallel to the central axis of the filter cage or perpendicular to this.
  • the suction inlet is surrounded by an annular collar into which an end portion of the filter cage is immersed, wherein on the annular collar and the end portion on the one hand a projection and on the other hand a recording receiving this are arranged.
  • the protrusion may be located at the end portion of the filter cage, and the associated receptacle may be positioned at the annular collar.
  • the annular collar in the assembled state surrounds the end portion of the filter element and forms a mounting edge, which facilitates the mounting of the filter element at the suction inlet.
  • a particularly simple installation of the filter cage is achieved in an advantageous embodiment in that the arranged on the end portion of the filter cage coding on the support member diametrically opposite Side is arranged.
  • the coding of the filter cage is thus facing away from the support element. It has been shown that this simplifies the attachment of the filter cage at the suction inlet to the fitter.
  • the filter cage is surrounded over a portion of its circumference of a baffle and if the support element arranged in a bottom view of the suction head within the covered by the baffle wall angle range is. In the vertical direction, the support element protrudes beyond the lower end of the baffle wall. If the user mistakenly placed the suction head on the support element, the suction head experiences a tilting element in the direction away from the baffle wall, since the support element is arranged on the same side relative to the center axis of the filter cage as the baffle wall.
  • the support element occupies a position within the area covered by the baffle Winkelbreichs. If the user attempts to stop the suction head on the support element, then the weight of the suction head exerts a tilting element in the direction away from the baffle, so that the user will readily deposit the suction head on the side facing away from the baffle on the bottom surface. Damage to the baffle when placing the suction head is thereby prevented in a structurally simple manner.
  • the support element is arranged in the bottom view of the suction head on the bisector of the covered by the baffle wall angle range.
  • the central axis of the filter cage is aligned with the central axis of the suction head. Even with such an orientation of the filter cage is ensured by the staggered to the central axis of the support member arrangement that the suction head can not be parked stable on the support element. However, it is particularly advantageous if the center axis of the filter cage is arranged offset to the central axis of the suction head.
  • the support element diametrically opposite to the central axis of the suction head of the central axis of the filter cage.
  • the center axis of the filter cage is disposed on one side of the center axis of the suction head and the support member is positioned on the diametrically opposite side.
  • the center axis of the suction head, the center axis of the filter cage and the support element are arranged in a common vertical center plane of the suction head.
  • the median plane is vertically aligned and both the center axes of the filter cage and the suction head and the support element extend in the median plane.
  • FIG. 1 schematically, an inventive vacuum cleaner 10 is shown with a dirt collecting container 11 which is movable by means of a chassis 12 and on which a suction head 13 is placed.
  • the chassis 12 has two rear wheels 14, 15 and two steerable front wheels 16, 17 and a push bar 18.
  • a suction hose can be connected in the usual way. This is not shown in the drawing.
  • the suction head 13 can be removed from the dirt collecting 11. It comprises a circular base plate 20, on whose underside a funnel-shaped, in the bottom view heart-shaped suction inlet part 22 is fixed.
  • the suction inlet part 22 has a collar-shaped protruding from the underside of the base plate 20 upper edge region 24, which is the heart-shaped Outer contour of the Saugeinlassmaschines 22 defines and is connected via a tapering region 26 with a base plate 20 facing away from the end wall 28.
  • the latter has a central opening which forms a suction inlet 30.
  • the end wall 28 carries a downwardly projecting annular collar 32.
  • the suction inlet 30 is covered by a grid 34.
  • a filter cage 36 is releasably held. This has a collar-shaped end portion 38 which dips into the annular collar 32 in a form-fitting manner. From the free edge 40 of the end portion 38 is radially outwardly a coding in the form of a projection 42 which is received by a further coding element in the form of a radial receptacle 44 of the annular collar 32. This ensures that the filter cage 36 can be mounted on the suction inlet 30 only in a predetermined orientation.
  • the filter cage 36 has an end cap 46 which includes a plurality of apertures 48 and is integrally connected to the end portion 38 via axial struts 50 arranged uniformly distributed in the circumferential direction.
  • the filter cage 36 is cylindrically symmetrical and defines a cylinder axis 52 which forms the center axis of the filter cage 36.
  • a support element in the form of a support pin 54 protrudes from the underside of the end cap 46 facing away from the end section 38. Relative to the cylinder axis 52 of the support pin 54 is the projection 42 diametrically opposite.
  • the support pin 54 forms the lower end of the suction head 13.
  • the support pin 54 With the bottom surface in touch. Since the support pin 54 is arranged offset from the cylinder axis 52, a tilting moment acts on it due to the weight of the suction head 13. This has the consequence that the vertically oriented suction head 13 can not assume a stable position. The user will therefore place the suction head 13 longitudinally on the bottom surface, so that the suction head 13 assumes a stable position on the bottom surface. Subsequently, the user can remove the dirt collecting container 11 from the chassis 13 and empty.
  • the filter cage 36 is surrounded over a portion of its circumference by a baffle 56.
  • the baffle 56 extends over an angular range of about 135 °.
  • the cylinder axis 52 and the support pin 54 are as well as the projection 52 on the bisector 58 of the baffle 56 is arranged. They define a vertical median plane 60 of the vacuum cleaner 10. This will turn off FIG. 3 clear.
  • a filter element 62 can be placed in the axial direction, which is releasably fixed to the filter cage 36 and surrounds it in the circumferential direction.
  • the filter cage 36 in turn surrounds a float 64. This settles at a corresponding level of the dirt collecting 11 sealingly against the suction inlet 30 and thus interrupts the flow connection between the dirt collecting 11 and the suction head 13.
  • Such floats 64 are known in the art and therefore require in the present case no further explanation.
  • the suction head 13 has a total of three suction units 66, 67, 68, through which the dirt collecting container 11 through the single suction inlet 30 therethrough can be applied with negative pressure.
  • the base plate 20 has, for each suction unit 66, 67, 68, a cylindrical recess 70, 71, 72 into which an end-side end region of the respective suction unit 66, 67 or 68 can be inserted.
  • the recesses 70, 71, 72 each include a central suction opening 74, 75 and 76, respectively, via which the suction units 66, 67, 68 are in fluid communication with the suction inlet part 22.
  • a collar wall 78 from a ring wall portion 79 which surrounds the recesses 70, 71 in the circumferential direction largely, and with a second annular wall portion 80 which surrounds the recess 72 on its side facing away from the first annular wall portion 79 side.
  • a side wall 81, 82, 83, 84 is integrally formed.
  • the two side walls 81, 82 define a first Saugauslasskanal 86
  • the two side walls 83, 84 define a second Saugauslasskanal 88.
  • the two Saugauslasskanälen 86, 88 is in each case a transversely to the side walls 81, 82 and 83, 84 aligned baffle 90th , 91 arranged.
  • a plurality of spaced retaining pins 93 On the recesses 70, 71, 72 side facing the base plate 20 spaced from the annular wall sections 79 and 80 and spaced from the baffles 90, 91 a plurality of spaced retaining pins 93. Between the retaining pins 93 and the annular wall sections 79, 80th is as well as between the retaining pin 93 and the baffles 90, 91 a sound insulation used in the form of an insulating foam 95, 96th
  • an intermediate wall 100 is placed with three through holes 101, 102 and 103, in each of which a suction unit 66, 67, 68 can be used.
  • the intermediate wall 100 forms air guide parts in the form of a first arch 105 and a second arch 106, which cover the respective deflecting wall 90 and 91, respectively.
  • a hood 110 is placed, which has a parallel to the intermediate wall 100 extending ceiling wall 111, from which a jacket 112 facing the dirt collecting 11 facing downwardly protrudes.
  • the jacket 112 surrounds the intermediate wall 100 and also the base plate 20.
  • the shell 112 has a first Saugluftauslass 114, and at the level of the second Saugluftauslasskanals 88, the shell 112 has a second Saugluftauslass 116.
  • the shell 112 defines a cooling air outlet 118th
  • a cover 120 of the suction head 13 is placed on the hood 110.
  • the cover defines on two opposite outer sides of the suction head 13 two cooling air inlets, wherein in the drawing, only one cooling air inlet 121 is shown.
  • the interior of the suction head 13 is subdivided by the intermediate wall 100 into a suction air space arranged between the intermediate wall 100 and the base plate 20 and a cooling air space arranged between the intermediate wall 100 and the cover 120.
  • the latter is from the ceiling wall 111 in a arranged between the top wall 111 and the cover 120 cooling air inlet area and one between the ceiling wall 111 and the intermediate wall 100 arranged cooling air outlet area divided.
  • the suction units 66, 67, 68 each include a forced-air-cooled electric motor 125, 126, 127 which drives an axial-radial fan 129, 130 and 131, respectively.
  • the respective axial-radial fan 129, 130 and 131 dips into the associated recess 70, 71, 72 of the base plate 20 and extends up to the level of the intermediate wall 100.
  • the electric motors 125, 126, 127 are arranged, these on their respective axial-radial fan 129, 130, 131 facing away from each carry a fan wheel, which is not shown in the drawing to achieve a better overview.
  • cooling air By means of the fan wheel cooling air can be sucked from the arranged between the top wall 111 and the cover 120 cooling air inlet area.
  • the cooling air then flows axially along the corresponding electric motor 125, 126 or 127 and is discharged again in the cooling air outlet region between the top wall 111 and the intermediate wall 100.
  • the cooling air can be sucked in via the cooling air inlets 121, and the cooling air is emitted via the cooling air outlet 118.
  • a strong suction flow is achieved by means of the three suction units 66, 67, 68.
  • the interior of the dirt collecting container 11 is thereby subjected to negative pressure, so that via a suction hose, which is connected to the suction port 19, loaded with dirt particles and liquid droplets suction air can be sucked.
  • the suction air bounces within the dirt collection on the spaced apart from the suction port 19 baffle 56, at which the largest part of the liquid droplets separates, which then from the baffle 56 drain.
  • the suction air flows around the baffle 56 and flows through the filter element arranged on the filter cage 36 in the radial direction in order subsequently to pass through the suction inlet 30 and the suction inlet part 22 through the suction openings 74, 75, 76 to the suction units 66, 67, 68.
  • the suction air is discharged through the Saugluftauslasskanäle 86, 88 and Saugluftauslässe 114, 116 to the environment.
  • the suction air strikes the baffles 90, 91, where it is deflected in the vertical direction.
  • the user can remove the suction head 13 from the dirt collecting container 11. If he puts the suction head 13 vertically aligned on a bottom surface, the suction head 13 is acted upon by a tilting moment due to the offset to the cylinder axis 52 arranged support pin 54. The user is thereby stimulated to place the suction head in a stable position along the side of the bottom surface. There is therefore no risk that the suction head 13 is turned off when emptying the dirt collecting 11 unintentionally in an unstable position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP09782651A 2008-09-08 2009-09-04 Staubsauger Not-in-force EP2320783B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810047235 DE102008047235B4 (de) 2008-09-08 2008-09-08 Staubsauger
PCT/EP2009/061505 WO2010026237A1 (de) 2008-09-08 2009-09-04 Staubsauger

Publications (2)

Publication Number Publication Date
EP2320783A1 EP2320783A1 (de) 2011-05-18
EP2320783B1 true EP2320783B1 (de) 2012-12-19

Family

ID=41165510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09782651A Not-in-force EP2320783B1 (de) 2008-09-08 2009-09-04 Staubsauger

Country Status (5)

Country Link
EP (1) EP2320783B1 (da)
CN (1) CN102149311B (da)
DE (1) DE102008047235B4 (da)
DK (1) DK2320783T3 (da)
WO (1) WO2010026237A1 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106377205B (zh) * 2016-11-08 2018-11-06 苏州欧圣电气股份有限公司 一种吸尘器
GB2598505B (en) 2017-06-19 2022-06-08 Techtronic Floor Care Tech Ltd A dirt separation device
DE102018106166A1 (de) 2018-03-16 2019-09-19 Alfred Kärcher SE & Co. KG Sauggerät

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1951397U (de) * 1963-03-15 1966-12-08 Furness & Jones Ltd Pneumatischer sammler.
US4726825A (en) * 1985-02-22 1988-02-23 Gpac, Inc. Disposable HEPA filtration device
US6113663A (en) * 1998-11-10 2000-09-05 Shop Vac Corporation Vacuum cleaner having a dual filter assembly
CN1206956C (zh) * 1999-12-22 2005-06-22 戴森技术有限公司 过滤器组件
US7080425B2 (en) * 2003-03-07 2006-07-25 H-P Products, Inc. Vacuum canister and mounting bracket for use therewith
EP1685784B1 (de) * 2005-01-27 2011-01-05 Alfred Kärcher GmbH & Co. KG Sauggerät
US7971314B2 (en) 2006-11-30 2011-07-05 Emerson Electric Co. Oval filter cage and vacuum cleaner

Also Published As

Publication number Publication date
CN102149311B (zh) 2014-07-02
CN102149311A (zh) 2011-08-10
EP2320783A1 (de) 2011-05-18
WO2010026237A1 (de) 2010-03-11
DE102008047235A1 (de) 2010-03-11
DK2320783T3 (da) 2013-03-11
DE102008047235B4 (de) 2012-08-23

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