EP4236747A1 - Élément d'étanchéité pour buse d'aspirateur - Google Patents

Élément d'étanchéité pour buse d'aspirateur

Info

Publication number
EP4236747A1
EP4236747A1 EP20796468.5A EP20796468A EP4236747A1 EP 4236747 A1 EP4236747 A1 EP 4236747A1 EP 20796468 A EP20796468 A EP 20796468A EP 4236747 A1 EP4236747 A1 EP 4236747A1
Authority
EP
European Patent Office
Prior art keywords
sweep line
projections
suction space
nozzle
sweep
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.)
Pending
Application number
EP20796468.5A
Other languages
German (de)
English (en)
Inventor
Peter MIAN
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Publication of EP4236747A1 publication Critical patent/EP4236747A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
    • A47L9/0626—Rigidly anchored lips, e.g. nozzles adapted for picking up liquids
    • 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
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0488—Combinations or arrangements of several tools, e.g. edge cleaning tools
    • 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
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored 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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls

Definitions

  • the present disclosure relates to vacuum cleaner nozzle and in particular a vacuum cleaner nozzle having a sealing member, and to such a sealing member.
  • Vacuum cleaner nozzles for vacuum cleaners can be provided with a suction mouth surrounded wholly or partly by a seal that can be placed on a surface to be cleaned.
  • Such vacuum cleaner nozzles are designed to be placed on a surface to be cleaned and to connect, typically indirectly via a pipe, a hose and other devices of the vacuum cleaner, to a suction fan of a vacuum cleaner.
  • a suction fan of a vacuum cleaner In order to clean a recess in the surface, such as a crack, groove or joint, as effectively as possible, the suction mouth is surrounded by a seal so that a high vacuum can be generated in the suction space defined by the seal between the suction mouth and the surface. If the vacuum cleaner nozzle is moved over the recess in the ground, air flows at high speed through the recess into the suction space, whereby the recess is effectively cleaned.
  • EP 2939582 describes a vacuum cleaner nozzle designed to enable both generation of sufficient negative pressure in the suction chamber for effective cleaning of recesses in the surface to be cleaned and also absorption of larger dirt particles when moving the vacuum cleaner nozzle on the surface.
  • a vacuum cleaner nozzle is provided with a suction mouth having a sealing member that can be placed on a surface to be cleaned.
  • the sealing member is formed by at least one elastic sealing lip, which is designed such that it has a lower rigidity when bent in a direction towards the suction mouth than in the opposite direction.
  • One object of the present disclosure is therefore to provide a vacuum cleaning nozzle that is more efficient than existing vacuum cleaning nozzles and which is able to generate an under pressure in the nozzle and at the same time allow for picking up larger dirt particles.
  • This object is achieved by a vacuum cleaner nozzle and a sealing member for a vacuum cleaner nozzle as set out in the appended claims.
  • a nozzle for a vacuum cleaner is provided.
  • the vacuum cleaner preferably being a household vacuum cleaner, such as for example a canister vacuum cleaner, a stick or upright vacuum cleaner or a robotic vacuum cleaner.
  • the nozzle comprises a housing and a suction space formed within the housing. Further, a sealing member is provided on the outside of the suction space.
  • the sealing member can typically be located on the front side and/or back side of the nozzle in the direction that the nozzle is intended to move.
  • the sealing member comprises, on the same side of the suction space, a first sweep line closer to the suction space and a second sweep line distanced from the first sweep line and further away from the suction space than the first sweep line.
  • the first sweep line and the second sweep line are essentially parallel to each other, and at least one of the first sweep line and the second sweep line comprises projections extending towards the surface to be cleaned with openings between the projections.
  • the first sweep line and the second sweep line can advantageously be oriented transverse the intended direction of movement of the nozzle so as to sweep over a large area when the nozzle is moved over the surface to be cleaned.
  • both the first sweep line and the second sweep line comprise projections extending towards the surface to be cleaned.
  • the projections are formed by flaps.
  • the flaps can hang downwards to create the projections of the first and or sweep line.
  • one easy way to implement arrangement for creating the projections of the sweep line(s) is provided.
  • the sweep lines are formed by ribs having cutouts forming projections between the cutouts.
  • a rib can be provided with cutouts.
  • projections will be formed between the cutouts.
  • the rib with cutouts will then form a sweep line that is easy to manufacture.
  • the projections of the first sweep line completely covers openings of the second sweep line in a line of sight.
  • the sweep lines are arranged so that the projections of the respective sweep lines covers the respective openings of the other sweep line in the movement direction of the nozzle of the surface to be cleaned.
  • the projections of the first sweep line are longer than the projections of the second sweep line.
  • a first sealing member is provided forward of the suction space, or a second sealing member is provided rearward of the suction, in the principal movement direction of the nozzle over the surface to be cleaned.
  • two sealing members are provided, a first sealing member forward of the suction space and a second sealing member rearward of the suction space.
  • the projections are rectangular.
  • the projections can be easily manufactured and can be made easy to overlap in a line of sight.
  • the openings between rectangular projections have circularly shaped formations in the corners thereof.
  • the projections are made more robust and less likely to be damaged.
  • the openings between the projections are at least 2 mm wide, preferably between 2-16 mm. Hereby it can be ensured that even very large particles can enter the suction space.
  • the openings between the projections in the second sweep line are wider compared to the openings in the first sweep line.
  • the openings between the projections in the first sweep line are between 2-12 mm wide, and preferably 6-10 mm wide.
  • the openings between the projections in the second sweep line are between 4-15 mm wide, and preferably 10-14 mm wide
  • first sweep line and the second sweep line are spaced apart 0 - 4mm, and preferably at least 2mm.
  • large particles can enter the space between the first sweep line and the second sweep line when passing through the first and second sweep line to enter the suction space.
  • a brush is provided in the suction space.
  • the pick-up of particles, in particular large particles, in the suction space can be improved.
  • projections of the first sweep line are more flexible than the projections of the second sweep line in the forward and/or backward movement direction.
  • a more efficient sealing against the surface to be cleaned can be obtained.
  • the projections of the first sweep line extend all the way to the surface to be cleaned. Hereby an improved sealing for the suction space can be achieved.
  • the projections of the first sweep line are longer in a direction towards the surface to be cleaned than projections of the second sweep line.
  • a sealing member as set out above is provided.
  • the sealing member can be a spare part for the nozzle and be easy to exchange if damaged or if another type of sealing member is to be used. For example, if different sealing members are available that are optimized for different surfaces.
  • Fig. 1 is a cross sectional view of a nozzle for a vacuum cleaner from the side
  • Fig. 2 is a view of a sealing member from the side
  • Fig. 3 is a front view of a sealing member
  • Fig. 4 is a view in perspective from below of a sealing member
  • Fig. 5 is a detailed view of ribs for a sealing member.
  • Fig. 6 is a cross sectional view of a nozzle for a vacuum cleaner moving forward from the side,
  • Fig. 7 is a cross sectional view of a nozzle for a vacuum cleaner moving backward from the side
  • Fig. 8 is an area cross sectional views of a nozzle for a vacuum cleaner with two sealing members moving forward and backward, respectively.
  • the present disclosure relates to a nozzle 100 for a vacuum cleaner, as illustrated in Fig 1 .
  • the nozzle 100 has a housing 110 and inside the housing 110 a suction space 120 is formed as is well known in the art.
  • the suction space 120 can be placed in fluid connection with a suction fan of a vacuum cleaner to create under pressure in the suction space whereby dirt can be sucked into the suction space and onwards to the vacuum cleaner as is also well known in the art.
  • the nozzle 100 can be supported by wheels 170, 180.
  • the wheels 170, 180 can be arranged in any suitable configuration. In Fig.
  • the nozzle is supported by a pair of rear wheels 170 and a pair of front wheels 180. This configuration supports a movement back and forth over an underlying surface.
  • a brush 160 can be provided in the suction space 120.
  • the brush can be arranged to brush against the surface to be cleaned and thereby free dirt and other particles from the surface to be cleaned to facilitate suction of dirt from the surface to be cleaned.
  • the brush 160 can in some embodiments be rotatably arranged in the suction space 120.
  • the nozzle 100 in the embodiment of Fig. 1 further has a sealing member 130 provided on the outside of the suction space as seen in the intended movement direction of the nozzle 100.
  • the intended movement direction, principal movement direction, of the nozzle 100 is typically forward (see Fig 6). During use the nozzle is typically moved back and forth in a forward stroke and a backward stroke, respectively, in a forward moving direction
  • the sealing member 130 located directly behind the suction space 120 is the sealing member 130.
  • the sealing member acts to improve the under pressure in the suction space 120 and at the same time allow for larger dirt and particles to enter the suction space 120 as will be described in more detail below.
  • FIG. 2 an exemplary sealing member 130 is depicted in a side view.
  • the sealing member comprises two sweep lines.
  • a sweep line can be any line of members acting to sweep over the surface to be cleaned.
  • the sweep lines are formed by ribs 132, 134.
  • the first sweep line is here formed by a first rib 132
  • a second sweep line is here formed by a second rib 134.
  • a first rib 132 is arranged closer to the suction space and a second rib 134 is located distanced from the first rib and further away from the suction space than the first rib 132.
  • the first rib 132 and the second rib 134 are being arranged transverse the intended direction of movement of the nozzle and essentially parallel to each other.
  • first rib 132 and the second rib 134 will move together over the surface to be cleaned while being oriented transverse, in particular perpendicular, to the movement of the nozzle so as to sweep over the surface to be cleaned.
  • first rib 132 and the second rib 134 can be oriented laterally from side to side of the nozzle 100.
  • the first rib 132 and second rib 134 can be placed in a holder 135.
  • the holder can be a separate replacement having an inside flange 137 and an outside flange 139.
  • the inside flange 137 can be curved outwards from the first rib 132.
  • the outside flange 139 can be curved outwards from the second rib 134.
  • the sealing member 130 is shown in a front view.
  • the holder 135 of the sealing member 130 can be provided with at least one connector 138.
  • the sealing member can easily be replaced by a replacement sealing member if the sealing member is worn out or if another type of sealing member is required for example for cleaning another type of surface.
  • Fig. 4 a view in perspective from below of the sealing member 130 is shown. As can be seen, the ribs 132, 134 of the sealing members are provided with cutouts as will be described in more detail below.
  • first rib 132 and second rib 134 are shown in more detail in a front view.
  • both the first rib 132 and the second rib 134 are provided with cutouts 142 and 144, respectively.
  • the cutouts 142, 144 are advantageously provided such that when laid over each other, the portions of the ribs 132, 134 forming projections 143, 145 extending between the cutouts cover the cutouts of the other rib.
  • the projections 143, 145 of the two sweep lines will overlap in a line of sight.
  • the projections 143 of the first sweep line completely covers openings 144 of the second sweep line in a line of sight.
  • the large dirt particle will have to move sideways between the first rib and second rib to find its way into the suction space.
  • only one of the ribs 132, 134 is provided with cutouts.
  • the cutouts 142 of the first rib 132 are cut deeper than the cutouts of the second rib.
  • the projections 143 of the first rib will be longer than the projections of the second rib 134.
  • the cutouts 142 of the first rib 132 can for example be at least 5 mm deep and the cutouts 144 of the second rib 144 can be at least 2 mm deep.
  • the cutouts are typically generally rectangular, but other shapes can be envisaged such semi-circular or similar shapes.
  • the rectangular cutouts have circularly shaped formations 148 in the comers of the cutouts.
  • the cutouts are at least 2 mm wide and in some embodiments 2.5 mm wide. However, the cutouts can be wider, such as at least 5 mm or even at least 8 - 10 mm. The projections will then be spaced apart accordingly.
  • the first rib 132 and the second rib 134 are spaced apart at least 2 mm or at least 3 mm in the intended direction of movement of the nozzle.
  • the intended direction of movement is typically forward or backwards over the surface to be cleaned.
  • the nozzle will either be moved forward in a forward stroke or backwards in a backward stroke.
  • the first rib 132 can be more flexible, i.e. be more easily bent, than the second rib 132. Also, the first rib 132 can extend longer, closer to the surface to be cleaned than the second rib 134. Thus, the projections of the first sweep line are more flexible than the projections of the second sweep line in the forward and/or backward movement direction.
  • Fig. 6 the function of the sealing member 130 is illustrated.
  • the sealing member of the nozzle is here shown when the nozzle is moved in a forward stroke in the direction of the arrow in Fig. 6.
  • the inner, first, rib will then move towards the outer, second rib of the sealing member to seal the back side of the suction space 120 as seen in the direction of movement of the nozzle.
  • No dirt particles, in particular no larger dirt particles will then exit the suction space at the rear side of the suction space when the nozzle is moved forward since the first rib and the second rib of the sealing member 130 cooperate to seal the rear side of the suction space 120.
  • Fig. 7 the function of the sealing member 130 is illustrated when the nozzle is moved in the opposite, backwards direction.
  • the sealing member 130 of the nozzle is here shown when the nozzle is moved in a backwards stroke in the direction of the arrow in Fig. 7.
  • the inner, first, rib will then move away from the outer, second rib of the sealing member to open a path into the suction space 120 for dirt particles as seen in the direction of movement of the nozzle 100.
  • dirt particles in particular larger dirt particles can now enter the suction space at the rear side of the suction space when the nozzle is moved backwards since the first rib and the second rib of the sealing member 130 cooperate to open the rear side of the suction space 120.
  • Fig. 8 views similar to the views in Fig. 6 and Fig. 7 are shown.
  • the arrows in the upper and lower views of Fig. 8 indicate the direction of movement of the nozzle.
  • the nozzle 100 is moved forwards (in the upper view) and backwards (in the lower view).
  • two sealing members 130 and 150 are provided.
  • a front sealing member 150 is provided at the front side of the suction space 120.
  • the forward sealing member 150 acts in the corresponding way as the rear sealing member and is placed so that the first rib is located closest to the suction space 120.
  • the sealing member leading in the direction of movement will be open to allow dirt to enter whereas the other sealing member trailing in the direction of movement will seal the suction space.
  • an improved pick up of large particles can be provided and at the same time a high under pressure can be maintained inside the suction space 120.
  • the sweep lines have been exemplified by ribs having cutouts.
  • the ribs will then have projections formed between the cutouts that extend downwards towards the surface to be cleaned.
  • projections can be formed in a number of different ways.
  • flaps can be arranged that hang downwards along a line to form a sweep line.
  • the sealing member will thus comprise two sweep lines where at least one sweep line, when in use, has projections extending downwards towards the surface to be cleaned.
  • the dimensioning of the sweep lines can be varied to meet different implementational needs.
  • the distance between the sweep lines can be 1 mm or 2mm or more such as at least 3mm.
  • the distance between the projections of the sweep lines can be varied.
  • the distance can be a few mm such as 5mm or more such as at least 8mm.
  • the distance can be different for the different sweep lines.
  • the distance between projections can be longer for the second sweep line.
  • the thickness of the different sweep lines can be in the order of 1 mm. Such as at least 0.5 mm or at least 0.75 mm.
  • the different sweep lines can have different thickness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne une buse (100) pour aspirateur comprenant un boîtier (110) et un espace d'aspiration (120) formé à l'intérieur du boîtier. Un élément d'étanchéité (130) est prévu à l'extérieur de l'espace d'aspiration. L'élément d'étanchéité comprend, du même côté de l'espace d'aspiration, une première ligne de balayage plus proche de l'espace d'aspiration et une seconde ligne de balayage distante de la première ligne de balayage et plus éloignée de l'espace d'aspiration que la première ligne de balayage. La première ligne de balayage et la seconde ligne de balayage sont essentiellement parallèles l'une à l'autre, la première ligne de balayage et/ou la seconde ligne de balayage comprenant des saillies s'étendant vers la surface à nettoyer avec des ouvertures entre les saillies.
EP20796468.5A 2020-11-02 2020-11-02 Élément d'étanchéité pour buse d'aspirateur Pending EP4236747A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2020/079629 WO2022089711A1 (fr) 2020-11-02 2020-11-02 Élément d'étanchéité pour buse d'aspirateur

Publications (1)

Publication Number Publication Date
EP4236747A1 true EP4236747A1 (fr) 2023-09-06

Family

ID=73654771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20796468.5A Pending EP4236747A1 (fr) 2020-11-02 2020-11-02 Élément d'étanchéité pour buse d'aspirateur

Country Status (2)

Country Link
EP (1) EP4236747A1 (fr)
WO (1) WO2022089711A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444724A1 (de) * 1984-12-07 1986-06-12 Siemens AG, 1000 Berlin und 8000 München Bodensaugmundstueck fuer einen staubsauger
EP1725155B1 (fr) * 2004-03-16 2011-08-10 LG Electronics, Inc. Buse d'aspiration et tete d'aspirateur a vide comprenant ladite buse
US9854951B2 (en) * 2013-10-17 2018-01-02 Koninklijke Philips N.V. Vacuum cleaner head
DE102014208080A1 (de) 2014-04-29 2015-10-29 BSH Hausgeräte GmbH Staubsaugerdüse

Also Published As

Publication number Publication date
WO2022089711A1 (fr) 2022-05-05

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