EP3240464A1 - Buse d'aspirateur avec élément de réglage d'inclinaison - Google Patents

Buse d'aspirateur avec élément de réglage d'inclinaison

Info

Publication number
EP3240464A1
EP3240464A1 EP14828482.1A EP14828482A EP3240464A1 EP 3240464 A1 EP3240464 A1 EP 3240464A1 EP 14828482 A EP14828482 A EP 14828482A EP 3240464 A1 EP3240464 A1 EP 3240464A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
inlet part
adjusting element
tilt adjusting
tilt
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
EP14828482.1A
Other languages
German (de)
English (en)
Other versions
EP3240464B1 (fr
Inventor
Erik Dahlbeck
Roger Karlsson
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 EP3240464A1 publication Critical patent/EP3240464A1/fr
Application granted granted Critical
Publication of EP3240464B1 publication Critical patent/EP3240464B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings

Definitions

  • the present invention relates to the field of passive nozzles for vacuum cleaners.
  • the present invention relates to nozzles that can be tilted. Background or the invention
  • a vacuum cleaner is a device that uses a suction force generated by a fan or motor unit to create a particular vacuum or underpressure to suck up objects like dust, particles, fibres, hair etc. from surfaces such as e.g. floors and carpets. Typically, this is done by means of a vacuum cleaner nozzle that is connected via a nozzle outlet to an extension tube and/or suction hose to a dust compartment, in which dust can be separated from a dust laden air stream.
  • the dust pick up of a vacuum cleaner may e.g. be determined by the underpressure and the air flow at the nozzle. There is however a need for a balance between those parameters, since the underpressure is associated with motion resistance of the nozzle and the air flow associated with energy consumption of the motor unit.
  • a vacuum cleaner nozzle which is pivotally mounted with respect to a nozzle outlet, such that movement of the vacuum cleaner nozzle across the surface being vacuumed brings one of two working edges of the vacuum cleaner nozzle into closer contact with the surface in order to improve the dust pick up performance. As one of the working edges are brought into closer contact with the floor surface, the other raises slightly to allow air to bleed into the nozzle so as to reduce the motion resistance of the nozzle.
  • different vacuum cleaner nozzles and vacuum cleaning techniques are known, there is a need for improved vacuum cleaner nozzles that are more user friendly and more flexible with regard to various types of surfaces, motion resistance and/or dust pick up.
  • a passive nozzle for a vacuum cleaner comprises an outlet part adapted to be coupled to a hose of the vacuum cleaner, an intermediate part hingedly or pivotally connected to the outlet part, and an inlet part having a suction opening.
  • the inlet part is hingedly connected to the intermediate part so as to allow for the inlet part to tilt relative to the intermediate part.
  • the nozzle further comprises a tilt adjusting element, which can be arranged in a first position in which it allows a tilting motion of the inlet part within a first range, and in a second position in which it limits the tilting motion of the inlet part within a second range that is smaller than the first range.
  • a vacuum cleaner comprising a nozzle according to the first aspect.
  • the nozzle may be pushed and pulled across the surface in a reciprocating movement in which an underside of e.g. a suction plate of the nozzle, i.e. a side or portion at which the suction opening of the nozzle may be located, may be arranged substantially horizontal or parallel to the surface.
  • an underside of e.g. a suction plate of the nozzle i.e. a side or portion at which the suction opening of the nozzle may be located, may be arranged substantially horizontal or parallel to the surface.
  • the inlet part By tilting the inlet part or its underside by a certain angle relative to the surface, the inlet part, or at least a portion or edge of the inlet part, may be raised slightly from the surface to allow air to bleed or flow into the nozzle. As a result, the air flow at the nozzle may be increased, which may reduce the underpressure and hence the motion resistance.
  • the nozzle may be arranged in a first mode of operation, in which the tilt adjusting element is arranged in the first position, and a second mode of operation in which the tilt adjusting element is arranged in the second position.
  • the inlet portion and its underside may assume larger tilting angles to the surface as compared to the allowed tilting angles in the second mode.
  • the maximum tilt angle i.e. the tilt angle at a stop or end position of the inlet part, may be increased in the first mode so as to allow for the maximum air flow into the nozzle to be increased.
  • the motion resistance of the nozzle may be reduced in the first mode.
  • the allowed range of the tilting angles of the inlet portion relative to the surface may be limited by the tilt adjusting element such that the maximum tilt angle or the tilt angle at the stop or end position is reduced.
  • the nozzle in the second mode may be more horizontal or parallel to the surface as compared to the second mode, thereby reducing the maximum air flow entering the nozzle.
  • a more aggressive or sealed engagement with the surface such as e.g. a carpet, may be achieved. This may increase not only pick up of e.g. dust and fibrous material, but also motion resistance of the nozzle.
  • a smoother movement of the nozzle may be achieved as it is pulled in a backwards direction towards the user.
  • the reduction in dust pick up that may follow from this change may be at least partly compensated or counteracted by arranging the nozzle in the second mode.
  • the reduced fan unit power, or suction power may hence be compensated by the more aggressive or tighter sealed engagement of the nozzle with the surface.
  • a nozzle is achieved which allows a user to choose between at least two different modes of operation - a first mode in which the nozzle may have a reduced motion resistance and hence is easier and more convenient for a user to move, and a second mode in which the suction power or energy consumption of the motor unit may be reduced without impairing dust pick up of the nozzle.
  • the preferred mode of operation may vary depending on the type of surface to be vacuumed and the desired effect or efficiency of the cleaning.
  • the first mode may e.g. be used for reducing motion resistance on long-haired carpets, whereas the second mode may be used for deep cleaning of such carpets.
  • tilt adjusting element may refer to any element or structure capable of limiting the tilting motion of the inlet part from a first range to a second, smaller range.
  • the tilt adjusting element may e.g. be formed of an end-stop or a block that in its second position may be arranged to define a maximum tilt angle by mechanically or physically obstruct or prevent further motion of the inlet part relative to the intermediate part.
  • the tilt adjusting element may e.g. be adapted to limit or stop the tilting motion, as the inlet part is at an end position of the tilting range, by exerting a counteracting force on at least a portion of the inlet part.
  • the tilt adjusting element when arranged in the second position, may restrict a tilting space for the inlet part compared to the tilting space provided when the tilt adjusting element is in the first position.
  • the counteracting force may e.g. be realised by the tilt adjusting element abutting or engaging with the inlet part and/or intermediate part at least at the end position of the tilting motion range.
  • the tilt adjusting element may be arranged at, or attached to, the inlet part or the intermediate part, or arranged as a separate part that can be introduced between a portion of the inlet part and the intermediate part.
  • the tilt adjusting element may be movable or retractable into its first position, in which it may be adapted to define a first range of the tilting motion in a similar way as described above with reference to the second position. It will however be appreciated that the tilt adjusting element may be adapted to allow the first range of the tilting motion by simply not interacting or engaging with the inlet part and/or intermediate part as the tilt adjusting element is arranged in its first position.
  • the first mode of the nozzle i.e. wherein the tilt adjusting element is arranged in the first position
  • the second mode of operation in which the tilt adjusting element is arranged in the second position, may be used on surfaces associated with relatively low motion resistance or on surfaces or in situations for which an increased dust pick up is wanted.
  • the tilt adjusting element may be arranged to limit the tilting motion of the inlet part when the nozzle is moved in a forward stroke.
  • the inlet part may tilt such that a rear portion of its underside may be slightly raised from, or at least exert a reduced pressure on, the surface being vacuumed. Consequently, air may be allowed to flow through a gap between the rear portion of the underside of the inlet part so as to reduce the underpressure at the nozzle and hence the motion resistance during the forward stroke.
  • the present embodiment allows for an adjustment of the maximum tilt angle relative to the surface during the forward stroke, and hence for an adjustment of the maximum gap between the rear portion of the underside of the inlet part and the surface.
  • the tilt adjusting element may, when arranged in the first position, allow a maximum tilt angle of 10° or less between the inlet part and the surface to be cleaned or vacuumed.
  • the tilt adjusting element may, when arranged in the second position, allow a maximum angle of 5° or less between the inlet part and the surface.
  • the tilt adjusting element may comprise a blocking portion arranged to limit the tilting motion of the inlet part by engaging with a portion of the inlet part and/or a portion of the intermediate part when the inlet part is in an end position of the second range. Additionally, the blocking portion may be arranged to engage with the portion of the inlet part and/or the intermediate part when the inlet part is in an end position of the first range.
  • the portion of the inlet part, with which the tilt adjusting element may engage to limit the tilting motion may be a rear portion of the inlet part.
  • the tilting motion may hence be limited during a forward stroke, in which the rear portion of the inlet part may be tilted or slightly raised from the surface and moved towards a portion of the intermediate part.
  • the tilt adjusting element may further comprise an actuator portion coupled to the blocking portion and operable by a user to switch the tilt adjusting element between the first and second positions.
  • the actuator portion may e.g. be formed as, or at least be connected to, a button or slider that may be readily accessible to a user and can be used for switching the nozzle between e.g. a first, user friendly mode and a second, power saving mode and vice versa.
  • the intermediate part may comprise a support portion arranged to support the intermediate part on a surface to be cleaned.
  • the support portion may e.g. comprise at least one wheel or roller, which reduces the risk of the intermediate part or support portion scratching the surface being vacuumed.
  • the support portion may comprise at least one sliding surface adapted to slide on the surface.
  • Figure 1 is a side view of a nozzle according to an embodiment.
  • Figures 2a-d are side views of an inlet part according to an embodiment.
  • Figures 3a and b are top views of an inlet part of a nozzle according to another embodiment.
  • Figure 4 is a top view of the inlet part of figures 3a and b.
  • FIG. 1 is a side view of a passive nozzle for a vacuum cleaner according to an embodiment.
  • the nozzle 100 comprises an inlet part 1 30, an intermediate part 120 and an outlet part 1 1 0 which may be adapted to be coupled to an extension tube or suction hose of the vacuum cleaner (not shown).
  • the outlet part 1 10 and the inlet part 130 may be hingedly or pivotally coupled to the intermediate part 120 so as to allow a rotational or tilting motion around the respective connection.
  • the intermediate part 120 may comprise a support portion 122, such as e.g. at least one wheel or roller 122, arranged to support the nozzle 100 on the surface S being vacuumed during operation of the vacuum cleaner.
  • the nozzle 100 may comprise a tilt adjusting element which can be arranged to limit a tilting motion of the inlet part 130 relative to the intermediate part 120.
  • the tilt adjusting element will be described in more detail with reference to figures 2a -d and 3a and b.
  • the inlet part 1 30 may comprise a suction plate 132 having an underside at which a suction opening 134 may be arranged.
  • underpressure may be created at the underside of the inlet part 1 30, thereby allowing an air flow between the surface S being vacuumed and the underside of the nozzle 100.
  • the air flow may enter the nozzle 100 and the suction hose via the suction opening.
  • the hinged connection between the inlet part 130 and the intermediate part 120 allows for rotational or tilting movement of the inlet part 130 relative to the intermediate part 120.
  • a rear portion or rear working edge 136 of the underside of the inlet part 130 may be slightly raised from the surface during a forward stroke of the nozzle.
  • a front portion or front working edge 138 of the nozzle 100 may be slightly raised from the surface during a backward stroke of the nozzle 100.
  • the hinged connection between the inlet part 130 and the intermediate part 120 hence allows for a tilting motion of the inlet part relative to the surface being vacuumed, such that a gap may be formed or varied between at least a portion of the underside of the inlet part 130 and the surface.
  • the size of the gap which may be determined by a tilting angle of the inlet part 130, may affect the size of the air flow entering the suction opening 134 of the nozzle 1 00, the underpressure at the nozzle and a motion resistance during e.g. a forward or a backward stroke of the nozzle across the surface.
  • Figures 2a to d show tilting positions of the inlet part 230 relative to the intermediate part 220 and to a surface S being cleaned.
  • the nozzle 200 may comprise an outlet part (not shown), and intermediate part 220 and an inlet part 230, and may be similarly configured as the nozzle described with reference to figure 1 .
  • the tilt adjusting element 240 may be arranged in a first position, in which the tilt adjusting element 240 allows the inlet part 230 to tilt within a first tilting range, and a second position, in which the tilting range of the inlet part 230 is limited to a second range that is smaller than the first range.
  • Figures 2a and b show the tilt adjusting element 240 in its first position, in which it is arranged so as to allow the inlet part 230 to move in a first tilting range. In figure 2a, the underside of the inlet part 230 is arranged
  • the tilting angle between the inlet part 230 and the surface S may hence be approximately 0°, and there may be a tilting space di between the inlet part 230 and the tilt adjusting element 240 allowing a tilt movement of the inlet part 230.
  • the motion resistance between the inlet part 230 and the surface S may cause the inlet part 230 to rotate or tilt such that a rear portion 236 of the underside of the inlet part 230 is slightly raised from the surface.
  • a rear portion 231 of the inlet part may be moved towards a blocking portion 241 of the tilt adjusting element 240 during the tilting motion, until the rear portion 231 and the blocking portion 241 are brought in mechanical contact with each other.
  • the maximum tilt angle ⁇ may hence be defined by end position of the inlet part 230 in which the rear portion 231 of the inlet part 230 abuts the blocking portion 241 of the tilt adjusting element 240.
  • the tilt adjusting element 240 may exert a force on the inlet part 230 via the blocking portion 241 so as to counteract or prevent further tilting motion of the inlet part 230.
  • the tilt adjusting element 240 may define a maximum tilt angle c or gap between the inlet part 230 and the surface S.
  • the maximum tilt angle ⁇ between the inlet part 230 and the surface may be 1 0° or less.
  • Figures 2c and d shows the tilt adjusting element 240 in its second position, in which the tilt adjusting element 240 may be arranged to reduce or restrict a tilting space d 2 or tilting range for the inlet part 230 compared to the tilting space di provided when the tilt adjusting element 240 is in the first position (as shown in figures 2a and b).
  • the tilt adjusting element 240 may be pivotally connected to the intermediate part 220 and rotatable such that the blocking portion 241 of the tilt adjusting element 240 in the second position may be arranged closer to the rear portion 231 of the inlet part 230.
  • a gap or tilting space d 2 between the blocking portion 241 of the tilt adjusting element 240 and the rear portion 231 of the inlet part 230 may be reduced such that the maximum tilt angle a 2 or gap between the inlet part 230 and the surface S may be reduced
  • the maximum tilt angle a 2 to the surface may be 5° or less.
  • the rear portion 231 of the inlet part may be brought in mechanical contact with the blocking portion 241 such that further tilting motion of the inlet part 230 is prevented or counteracted.
  • Figure 3a and b are top views of an inlet part 330 of a nozzle that may be similarly configured as the nozzles described with reference to figure 1 and 2.
  • the tilt range of the inlet part 330 may be defined by a gap between a protruding portion 321 of the intermediate part (omitted in figures 3a and b) and a tilt adjusting element 340 that is attached to the inlet part 330.
  • the tilt adjusting element 340 may be rotationally fixed to the inlet part 330 and adapted to be slid along a length extension of the inlet part 330 (indicated by arrow A).
  • the tilt adjusting element 340 may comprise blocking portions, such as a first and a second flange 341 , that can be arranged to interact with a first and a second protruding portion 321 , respectively, of the intermediate part 320 so as to limit the tilting motion of the inlet part 330 relative to the intermediate part 320.
  • Figure 3a shows the tilt adjusting element 340 in the first position, wherein the flanges 341 of the tilt adjusting element 340 are arranged to not abut or mechanically interact with the protruding portion 321 of the intermediate part 320 as the inlet part 330 is tilted.
  • the tilt adjusting element 340 is slid into a second position, in which the flanges 341 are arranged abreast of a respective protruding portion 321 .
  • an end position of the tilt range of the inlet part 330 may be defined by the tilt angle at which the protruding portions 321 abut the flanges 341 .
  • Figure 4 is a top view of an inlet part 330 of a nozzle similarly configured as the nozzle described with reference to figures 3a and b.
  • the the tilt adjusting element may comprise an actuator portion, such as a slider 342, coupled to the blocking portion (not shown in figure 4) and operable by a user to switch the tilt adjusting element between the first and second positions.
  • the slider 342 may be arranged on an upper side portion of the inlet part 330 such that the slider 342 can be readily accessed and operated by a user. The user is hence allowed to select a first, more user friendly mode in which a wider tilt angle range is allowed to reduce motion resistance, and a second, mode in which a limited tilt angle ranged is provided to reduce air flow into the nozzle and to increase dust pick up.
  • a passive nozzle comprising an outlet part adapted to be coupled to a hose of the vacuum cleaner, an intermediate part connected to the outlet part, and an a inlet part hingedly connected to the intermediate part such that the inlet part is allowed to tilt relative to the intermediate part.
  • the nozzle comprises a tilt adjusting element by means of which the nozzle is arrangable in the first mode, wherein a tilting motion of the inlet part is allowed within a first range, and a second mode, wherein the first tilting range is limited to a smaller, second tilting range.
  • the user is allowed to choose between at least two different modes of operation based on e.g. a desired motion resistance, ease of use, energy consumption and dust pick up.

Landscapes

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

Abstract

La présente invention concerne une buse (100, 200) pour un aspirateur. Ladite buse comprend une partie de sortie (110) conçue pour être couplée à un tuyau de l'aspirateur, une partie intermédiaire (120, 220), et une partie d'entrée (130, 230, 330). La partie d'entrée est reliée de manière articulée à la partie intermédiaire de manière à permettre à la partie d'entrée de s'incliner par rapport à la partie intermédiaire. La buse comprend en outre un élément de réglage d'inclinaison (240, 340), qui peut être agencé dans une première position dans laquelle il permet un mouvement d'inclinaison de la partie d'entrée dans une première plage, et dans une seconde position dans laquelle il limite le mouvement d'inclinaison de la partie d'entrée dans une seconde plage qui est plus petite que la première plage de manière à réduire un écoulement d'air maximal pénétrant dans la buse.
EP14828482.1A 2014-12-29 2014-12-29 Buse d'aspirateur avec élément de réglage d'inclinaison Active EP3240464B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/079375 WO2016107634A1 (fr) 2014-12-29 2014-12-29 Buse d'aspirateur avec élément de réglage d'inclinaison

Publications (2)

Publication Number Publication Date
EP3240464A1 true EP3240464A1 (fr) 2017-11-08
EP3240464B1 EP3240464B1 (fr) 2019-04-17

Family

ID=52394227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14828482.1A Active EP3240464B1 (fr) 2014-12-29 2014-12-29 Buse d'aspirateur avec élément de réglage d'inclinaison

Country Status (3)

Country Link
EP (1) EP3240464B1 (fr)
CN (1) CN107105954B (fr)
WO (1) WO2016107634A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2559379A (en) 2017-02-03 2018-08-08 Tti Macao Commercial Offshore Ltd A tool for a surface cleaning apparatus
FR3062563B1 (fr) * 2017-02-08 2019-05-10 Seb S.A. Tete de succion d’aspirateur
CN116269039A (zh) 2018-04-30 2023-06-23 Lg电子株式会社 清洁器吸嘴
KR102711296B1 (ko) 2018-04-30 2024-09-30 엘지전자 주식회사 청소기의 노즐
CN115989982A (zh) 2018-04-30 2023-04-21 Lg电子株式会社 清洁器的吸嘴
WO2019212177A1 (fr) 2018-04-30 2019-11-07 엘지전자 주식회사 Buse d'aspirateur
CN114504270B (zh) 2018-04-30 2023-12-08 Lg电子株式会社 用于清洁器的吸嘴
KR102625905B1 (ko) 2018-07-30 2024-01-18 엘지전자 주식회사 청소기의 노즐

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2364750C2 (de) * 1973-12-27 1983-08-18 Hans 5226 Reichshof Wessel Staubsaugerdüse
DE2846847C2 (de) * 1978-10-27 1985-02-14 Miele & Cie GmbH & Co, 4830 Gütersloh Staubsaugerdüse
NL8001789A (nl) * 1980-03-26 1981-10-16 Wessel Hans Stofzuigermondstuk.
DE102006031486A1 (de) * 2006-07-07 2008-01-10 Wessel-Werk Gmbh Düse für Bodenstaubsauger
SE532296C2 (sv) * 2008-04-15 2009-12-08 Electrolux Ab Munstycke
DE202009010089U1 (de) * 2009-06-18 2009-11-12 Wessel-Werk Gmbh Bodendüse für Staubsauger

Also Published As

Publication number Publication date
WO2016107634A1 (fr) 2016-07-07
CN107105954B (zh) 2019-11-15
CN107105954A (zh) 2017-08-29
EP3240464B1 (fr) 2019-04-17

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