EP2110062B1 - Staubsauger - Google Patents

Staubsauger Download PDF

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Publication number
EP2110062B1
EP2110062B1 EP09158024.1A EP09158024A EP2110062B1 EP 2110062 B1 EP2110062 B1 EP 2110062B1 EP 09158024 A EP09158024 A EP 09158024A EP 2110062 B1 EP2110062 B1 EP 2110062B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
filter
air
filter element
cleaner according
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
EP09158024.1A
Other languages
English (en)
French (fr)
Other versions
EP2110062A2 (de
EP2110062A3 (de
Inventor
Andrew Walker
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.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
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 Black and Decker Inc filed Critical Black and Decker Inc
Publication of EP2110062A2 publication Critical patent/EP2110062A2/de
Publication of EP2110062A3 publication Critical patent/EP2110062A3/de
Application granted granted Critical
Publication of EP2110062B1 publication Critical patent/EP2110062B1/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
    • 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
    • A47L5/24—Hand-supported suction 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
    • A47L9/12—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
    • 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
    • A47L9/20—Means for cleaning filters
    • 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
    • A47L9/22—Mountings for motor fan assemblies

Definitions

  • the present invention relates to portable vacuum cleaners.
  • Portable vacuum cleaners are known in which a fan mounted in the housing of the vacuum cleaner causes suction of air into an intake in the housing and expulsion of air from an exhaust in the housing.
  • Air drawn through the vacuum cleaner in this way is passed through a dual filter arrangement consisting of a convex coarse filter element comprising a screen of durable plastics material having a large number of small apertures and defining a recess which contains a fine filter element in the form of a fine filter medium such as fibrous paper which is crimped or undulated to maximise its effective surface area in relation to its volume.
  • Large particles of dirt travelling in the stream of air from the inlet towards the outlet are trapped on the outer surface of the coarse filter element, and finer dirt particles which pass through the coarse filter element are trapped on the fine filter element.
  • EP-A-1 523 916 describes a portable vacuum cleaner according to the preamble of claim 1.
  • DE-OS-21 08 842 describes a manual vacuum bag cleaning mechanism inside a hand-held vacuum cleaner wherein a round brush is used to clean the interior surface of a dust collection bag.
  • GB-A-2 430 863 describes a dust collector for a vacuum cleaner comprising means for cleaning dirt, dust, etc. adhered to a filter thereof in association with the operation for opening and closing a cap or lid of the dust collector.
  • Preferred embodiments of the present invention seek to overcome the above disadvantages of the prior art.
  • a portable vacuum cleaner comprising:
  • At least one said cleaning member comprises a brush.
  • At least one first filter element defines a respective recess therein for collecting particles therein, and said second filter means is arranged outwardly of at least one said first filter element.
  • this provides the advantage that by collecting particles on the inside of at least one said first filter element, the surface area of the or each first filter element can be increased, together with the volume of the corresponding particle collection recess, and no reduction of the particle storage space available within the vacuum cleaner results, which would be the case with prior art arrangements in which dirt is collected on the outside of a convex filter element. Also, by collecting particles in the interior of a recess defined by the or each said first filter element, this provides the advantage of enabling dirt collected in the recess to be more effectively confined and therefore more tidily removed from the vacuum cleaner.
  • At least one said first filter element may have a concave inner surface.
  • This provides the advantage of reducing the instances of incoming particles becoming stuck to the first filter element.
  • At least one said first filter element may comprise a screen having apertures therein.
  • At least one said filter element may comprise a mesh.
  • the vacuum cleaner is preferably adapted to be opened to allow emptying of particles from said first filter means.
  • At least one said first filter element is elongate and adapted to receive air adjacent a first end thereof and having a component of motion from said first end towards a second end thereof.
  • This provides the advantage of causing air to have a component of motion axially along at least one said first filter element, as a result of which that filter element tends to fill up with dirt from one end. Since the filter element may become blocked in those regions where it fills with particles, the tendency of an incoming air stream to disturb particles already collected in the interior of a said first filter element is thereby reduced. In addition, this at the same time provides the advantage giving an indication when a said first filter element needs to be emptied, since the first filter element will no longer be effective.
  • the second filter means may comprise at least one second filter element, wherein at least one said second filter element is undulated.
  • This provides the advantage of increasing the effective surface area of the second filter means for a given volume of filter element.
  • At least one said cleaning member may engage undulations in at least one said second filter member.
  • the suction means may comprise a fan for displacing air towards the or each said outlet.
  • At least one said first filter element is elongate, and the vacuum cleaner in use directs air in a helical path over a surface of said elongate first filter element.
  • This provides the advantage of directing incoming air onto as large a proportion of the surface area of the filter element as possible, and not just over that part of the surface area facing towards the direction of the incoming air. This in turn provides the advantage of maximising the efficiency of the first filter means.
  • the vacuum cleaner may further comprise at least one inlet duct for introducing air to at least one said first filter element having a component of movement transverse to the longitudinal axis of said first filter element.
  • the vacuum cleaner may further comprise outlet duct means at least partially surrounding said first and second filter means, for directing air from said second filter means to at least one said outlet.
  • a portable vacuum cleaner 1 comprises a housing 2 of durable plastics material and consisting of a main part 3 to which a rear part 4 is pivotally attached by means of a hinge 5.
  • a diffuser 6 is mounted within the main part 3 of housing 2 and has a fan 7 mounted at the end thereof remote from the rear part 4 of housing 2.
  • the fan 7 is powered by an electric motor 8 to displace air radially outwards through apertures 9.
  • the main part 3 of housing 2 has an intake 10 at a front end thereof for receiving air into an inlet duct 11 which directs air through 180° into inlet 12 of a removable first, coarse filter element 13 in the form of a generally cylindrical cup, closed at one end thereof, and provided with suitably sized holes 14.
  • the cup is made of any suitable material which will be well known to persons skilled in the art, such as durable plastics or metal, and is designed to trap larger particles of dirt in its interior.
  • a brush 20 is mounted to the closed end of coarse filter element 13.
  • the brush 20 has bristles extending outwardly of the longitudinal axis of the coarse filter element 13.
  • the coarse filter element 13 is surrounded by a generally cylindrical second, fine filter element 15 of fibrous paper or textile material, which is pleated to maximise the effective surface area of the filter element 15 in relation to its volume.
  • the bristles of brush 20 fit within the pleats of fine filter element 15.
  • the fine filter element 15 is sealed at the end thereof remote from fan 7 to the coarse filter element 13, and is surrounded by a chamber 16 which is sealed to an input of the fan 7. This ensures that air passing through the fine filter element 15 enters the fan 7.
  • the apertures 9 of fan 7 direct air radially outwards and then along an annular outlet duct 17, formed by the space between the inner wall of diffuser 6 and outer wall of chamber 16, to a series of outlet apertures18 in the rear part 4 of housing 2.
  • Air passing out of coarse filter element 13 is then drawn through fine filter element 15, where smaller particles are removed, and is then drawn into fan 7 and expelled from apertures 9 and along outlet duct 17.
  • the coarse filter element 13 fills up from its end remote from the rear part 4 of housing 2, i.e. it fills up from its downstream end. This means that dirt collected in the interior of coarse filter element 13 is not disturbed or otherwise displaced by incoming air.
  • the outlet duct 17 By constructing the outlet duct 17 in an annular form that surrounds the chamber 16, the outlet duct 17 can be made to have a relatively large surface area, as a result of which the velocity of air discharged though outlet apertures 18 is minimised. This minimises the disturbance of dirt and dust in the vicinity of the outlet apertures 18, which is of particular advantage in the case of users of the vacuum cleaner suffering from an allergy to dust.
  • FIG 2 which shows a view along the line B-B in Figure 1 , when the rear part 4 of housing 2 is pivoted relative to the main part 3 about hinge 5, the coarse filter element 13 containing larger dirt particles can be removed from the housing 2 to enable the filter element 13 to be emptied.
  • the bristles of the brush 20 are moved axially along the pleats of fine filter element 15. This causes dust and/or dirt to be displaced from the fine filter element.
  • an inlet duct 111 is connected to an intake (not shown) provided at a distal end thereof with a suitable cleaning accessory such as a brush.
  • the inlet duct 111 is removably mounted to inlet 112 of coarse filter element 113 by means of a bayonet-type fitting 130.
  • inlet 112 is of generally cylindrical internal profile and longitudinal axis 131 of the inlet duct 111 is slightly displaced from the axial plane 132 of inlet 112, as a result of which circular motion in the direction of arrow C is imparted to air entering inlet 112 from inlet duct 111.
  • the coarse filter element 113 is blocked by an un-perforated end cap 133 at the end thereof remote from inlet 112, and a brush 120 is mounted to the end cap 133.
  • the coarse filter element 113 is surrounded by a cylindrical fine filter element 115 of pleated fibrous paper such that the bristles of brush 120 fit within the pleats of fine filter element 115.
  • the fine filter element 115 is also sealed by means of an un-perforated end cap 134 adjacent end cap 133, and is sealed at fitting 135 within chamber 116. As a result, any air passing through coarse filter element 113 is directed through the sides thereof into fine filter element 115.
  • a fan 107 having blades 136 is arranged at the end of chamber 116 remote from fitting 135 and expels air radially outwards into annular outlet duct 117 which surrounds chamber 116. The air is then exhausted from annular exhaust aperture 118.
  • actuation of fan 107 causes expulsion of air along annular outlet duct 117, as a result of which air is drawn axially inwards through inlet duct 111, inlet 112 and into the interior of coarse filter element 113 in the direction of arrow D shown in Figure 4 .
  • air undergoes a spiral motion along filter element 113, as a result of which incoming air travels over the entire side internal surface of coarse filter element 113. This maximises the effective use of filter element 113.
  • the internal surface of filter element 113 is concave, dirt particles are less likely to become trapped in the holes of filter element 113.
  • dirt particles trapped by coarse filter element 113 tend to congregate at the closed distal end of filter element 113, as a result of which dirt is not disturbed by incoming air.
  • the filtered air After passing through filter element 113, the filtered air passes through fine filter element 115 and through chamber 116 to fan 107. Where it is expelled into outlet duct 117 and then discharged through exhaust aperture 118.
  • the inlet 112 is removed from the housing of the vacuum cleaner, and the coarse filter element 113 is removed from the housing.
  • the bristles of brush 120 move axially along the individual pleats of fine filter element 115 and thereby displace dust and/or dirt trapped on the fine filter element 115.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (14)

  1. Tragbarer Staubsauger, der umfasst:
    mindestens einen Einlass (10), um den Eintritt von Luft zu ermöglichen ;
    mindestens einen Auslass (18, 118), um den Austritt von Luft zu ermöglichen;
    Ansaugmittel (7, 8), um einen Druckunterschied der Luft zwischen dem Einlass oderjedem der Einlässe und dem Auslass oder jedem der Auslässe zu erzeugen;
    erste Filtermittel (13, 113), um mindestens teilweise Partikel, die größer als eine erste Partikelgröße sind, aus der Luft zu entfernen, die von mindestens einem Einlass bzw. von mindestens einem der Einlässe zu mindestens einem Auslass bzw. zu mindestens einem der Auslässe strömt; und
    zweite Filtermittel (15, 115), um mindestens teilweise Partikel, die größer als eine zweite Partikelgröße, die kleiner als die erste Partikelgröße ist, sind, aus der Luft zu entfernen, die von den ersten Filtermitteln zu mindestens einem Auslass (der Auslässe) strömt;
    wobei
    die ersten Filtermittel (13, 113) die Form einer im Allgemeinen zylindrischen Aufnahmebuchse aufweisen;
    die zweiten Filtermittel (15, 115) im Allgemeinen zylindrisch sind und die ersten Filtermittel umgeben; und
    dadurch gekennzeichnet, dass:
    die ersten Filtermittel mindestens ein entfernbares erstes Filterelement umfassen, das mindestens ein Reinigungselement (20, 120) aufweist, das daran befestigt ist und das dafür ausgelegt ist, die zweiten Filtermittel derart in Eingriff zu nehmen, dass eine Entfernung des oder jedes der entfernbaren ersten Filtermittel, das mindestens ein Reinigungselement aufweist, das daran befestigt ist, das oder jedes entsprechende Reinigungselement veranlasst, Partikel, die auf den zweiten Filtermitteln eingefangen sind, zu entfernen.
  2. Tragbarer Staubsauger nach Anspruch 1, wobei mindestens eines der Reinigungselemente (20, 120) eine Bürste umfasst.
  3. Tragbarer Staubsauger nach Anspruch 1 oder 2, wobei mindestens ein erstes Filterelement eine jeweilige Aussparung darin definiert, um darin Partikel zu sammeln, und wobei die zweiten Filtermittel außerhalb des mindestens einen ersten Filterelements angeordnet sind.
  4. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, wobei mindestens eines der ersten Filterelemente eine konkave innere Oberfläche aufweist.
  5. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, wobei mindestens eines der ersten Filterelemente ein Sieb mit Öffnungen (14) umfasst.
  6. Tragbarer Staubsauger nach Anspruch 5, wobei mindestens eines der ersten Filterelemente ein Maschennetz umfasst.
  7. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, wobei der Staubsauger dafür ausgelegt ist, geöffnet zu werden, um Partikel aus den ersten Filtermitteln zu entleeren.
  8. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, wobei mindestens eines der ersten Filterelemente langgestreckt ist und dafür ausgelegt ist, Luft benachbart zu einem ersten Ende desselben aufzunehmen, wobei die Luft eine Bewegungskomponente von dem ersten Ende in Richtung eines zweiten Endes desselben aufweist.
  9. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, wobei die zweiten Filtermittel mindestens ein zweites Filterelement umfasst und wobei mindestens eines der zweiten Filterelemente wellenförmig ist.
  10. Tragbarer Staubsauger nach Anspruch 9, wobei mindestens eines der Reinigungselemente (20) die Wellenformen in mindestens einem der zweiten Filterelemente in Eingriff nimmt.
  11. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, wobei die Ansaugmittel (7, 8) ein Gebläse (7) umfassen, um Luft in Richtung des Auslasses oder in Richtung jedes der Auslässe zu verschieben.
  12. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, wobei mindestens eines der ersten Filterelemente langgestreckt ist, und wobei der Staubsauger im Gebrauch die Luft in einem spiralförmigen Pfad über eine Oberfläche des langgestreckten ersten Filterelements lenkt.
  13. Tragbarer Staubsauger nach Anspruch 12, der ferner mindestens eine Einlassleitung (11) umfasst, um Luft in mindestens eines der ersten Filterelemente einzuführen, wobei die Luft eine Bewegungskomponente quer zu der Längsachse des ersten Filterelements aufweist.
  14. Tragbarer Staubsauger nach einem der vorhergehenden Ansprüche, der ferner Auslassleitungsmittel (17, 117) umfasst, die mindestens teilweise die ersten (13, 113) und zweiten (15, 115) Filtermittel umgeben, um Luft von den zweiten Filtermitteln zu mindestens einem der Auslässe (18, 118) zu lenken.
EP09158024.1A 2008-04-18 2009-04-16 Staubsauger Not-in-force EP2110062B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0807097A GB2459300B (en) 2008-04-18 2008-04-18 Vacuum cleaner

Publications (3)

Publication Number Publication Date
EP2110062A2 EP2110062A2 (de) 2009-10-21
EP2110062A3 EP2110062A3 (de) 2010-09-22
EP2110062B1 true EP2110062B1 (de) 2016-11-09

Family

ID=39472340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09158024.1A Not-in-force EP2110062B1 (de) 2008-04-18 2009-04-16 Staubsauger

Country Status (4)

Country Link
US (1) US20090260179A1 (de)
EP (1) EP2110062B1 (de)
AU (1) AU2009201093B2 (de)
GB (1) GB2459300B (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US10368706B1 (en) 2018-07-17 2019-08-06 Shop Vac Corporation Vacuum filter having annular catch

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US11534043B2 (en) 2011-03-04 2022-12-27 Omachron Intellectual Property Inc. Surface cleaning apparatus
US12171393B2 (en) 2011-03-04 2024-12-24 Omachron Intellectual Property Inc. Surface cleaning apparatus
US9609987B2 (en) * 2013-06-12 2017-04-04 Elizabeth Christensen Cosmetic and grooming vacuum
CN103610425A (zh) * 2013-11-27 2014-03-05 苏州凯丽达电器有限公司 一种便携式吸尘器
US11445874B2 (en) 2014-12-17 2022-09-20 Omachron Intellectual Property Inc. Hand carryable surface cleaning apparatus
US11445873B2 (en) 2014-12-17 2022-09-20 Omachron Intellectual Property Inc. Hand carryable surface cleaning apparatus
US11431224B2 (en) 2017-02-15 2022-08-30 Black & Decker Inc. Power and home tools
EP3420874A1 (de) 2017-06-29 2019-01-02 HILTI Aktiengesellschaft Filterabreinigung
US11375861B2 (en) 2018-04-20 2022-07-05 Omachron Intellectual Property Inc. Surface cleaning apparatus
US10595696B2 (en) 2018-05-01 2020-03-24 Sharkninja Operating Llc Docking station for robotic cleaner
JP2021531108A (ja) 2018-07-20 2021-11-18 シャークニンジャ オペレーティング エルエルシー ロボットクリーナの破片除去ドッキングステーション
GB2578873B (en) * 2018-11-09 2021-08-18 Dyson Technology Ltd A vacuum cleaner and a filter assembly
US11732924B2 (en) * 2019-02-08 2023-08-22 Johnson Controls Tyco IP Holdings LLP Air intake filter assemblies with a multi-level fine filter for heating, ventilation, and/or air conditioning (HVAC) systems
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GB201902894D0 (en) * 2019-03-04 2019-04-17 Numatic Int Ltd Vacuum cleaner
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10368706B1 (en) 2018-07-17 2019-08-06 Shop Vac Corporation Vacuum filter having annular catch
US11304579B2 (en) 2018-07-17 2022-04-19 Shop Vac Corporation Vacuum filter having annular catch

Also Published As

Publication number Publication date
EP2110062A2 (de) 2009-10-21
GB0807097D0 (en) 2008-05-21
AU2009201093A1 (en) 2009-11-05
AU2009201093B2 (en) 2014-02-06
GB2459300B (en) 2010-03-10
EP2110062A3 (de) 2010-09-22
GB2459300A (en) 2009-10-21
US20090260179A1 (en) 2009-10-22

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