EP2944244B1 - Appareil d'entretien du sol - Google Patents

Appareil d'entretien du sol Download PDF

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Publication number
EP2944244B1
EP2944244B1 EP15166366.3A EP15166366A EP2944244B1 EP 2944244 B1 EP2944244 B1 EP 2944244B1 EP 15166366 A EP15166366 A EP 15166366A EP 2944244 B1 EP2944244 B1 EP 2944244B1
Authority
EP
European Patent Office
Prior art keywords
eddy current
lever
current disk
magnet
care appliance
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.)
Active
Application number
EP15166366.3A
Other languages
German (de)
English (en)
Other versions
EP2944244A1 (fr
Inventor
Thomas Stein
Hartmut Boll
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.)
Stein and Co GmbH
Original Assignee
Stein and Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stein and Co GmbH filed Critical Stein and Co GmbH
Publication of EP2944244A1 publication Critical patent/EP2944244A1/fr
Application granted granted Critical
Publication of EP2944244B1 publication Critical patent/EP2944244B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/0427—Gearing or transmission means therefor
    • 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
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0444—Gearing or transmission means therefor for conveying motion by endless flexible members, e.g. belts
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2831—Motor parameters, e.g. motor load or speed
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2847—Surface treating elements
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • the invention relates to a floor care device as Bürststaubsauger with a floor facing Bürstvorsatz for receiving a driven brush roller with an overload protection, wherein the brush attachment is connected via a pivotable connecting element as a connecting piece for an attachable filter housing with a handle as a handle on corresponding connections, and wherein the brush attachment has at least one electric motor for a suction fan and for driving the brush roller, wherein the brush roller is associated with a unit for torque detection and a safety shutdown takes place via a switching arrangement above a torque threshold by overload.
  • the object of the invention is to improve an overload shutdown of a motor for generic brush-type vacuum cleaners and to enable a simple mechanical torque detection with an associated release mechanism and to ensure a good functioning.
  • the drive train is arranged a driven element of the unit for torque detection, which can be coupled above the torque threshold via a switchable coupling element with an associated rotary body as eddy current disc of electrically conductive material, and that the eddy current disc assigned at least one magnet is, which is pivotally positioned on a fixedly mounted movable carrier and an adjustment of the carrier by a generated eddy current generated magnetic field of the coupled eddy current disc, the carrier controls a corresponding circuit arrangement, such as a switching element, as a safety shutdown.
  • the circuit arrangement as an electrical switch, reed contact, Photocell or mechanical spring-loaded switch is formed.
  • the driven element of the unit for torque detection assigns the connectable coupling element of the eddy current disc over a contact surface as a slip-poor connection.
  • An advantageous embodiment is that the magnet is arranged on the movable carrier spaced from the eddy current disc and the magnetic field lines penetrate substantially perpendicular to the side surfaces of the eddy current disc.
  • the magnet comprises contactless yoke as the eddy current disc.
  • the eddy current disc is arranged concentrically on a shaft with the driven element and the coupling element via a central bearing for rotation and axial fixing.
  • a simple design is created in that the movable support is designed as a fixedly mounted pivotable lever, wherein the pivoting path of the magnet via the lever extends approximately parallel to the plane of rotation of the eddy current disc.
  • a further advantage is that the movable support is designed as a fixedly mounted, pivotable lever, wherein the pivot path of the magnet extends approximately spaced from the lever approximately to the outer rotational path of the eddy current disc.
  • a pivotally arranged locking lever is arranged with a non-contact magnet associated with the eddy current disc on a partial arm of the locking lever, wherein the Arret michshebel on the pivot lever biased by a spring element and the arm is spread apart, and the splayed arm of the locking lever in the preloaded initial position via a stationary stop as a lock for the pivotable lever and upon rotation of the eddy current disc formed by a generated eddy magnetic field of the locking lever on the Magnet by pivoting releases the blocking effect.
  • a brush attachment 1 is connected via a pivotable connecting element 3 as a connecting piece with an attachable filter housing 2.
  • the brush attachment has an electric drive not shown in detail with a drive pinion 4 for a brushing roller 5 via a drive train 6, 7 and at the same time for a likewise not shown suction fan.
  • a co-rotating element 8 of a unit 9 for mechanical torque detection is arranged in the drive train 6, 7 .
  • a switchable or extendable coupling element 10 as a disk element of the unit 9 for torque detection can be connected as an eddy current disk 11 for an associated rotational body.
  • the eddy current disc 11 is coupled via a bearing 12 concentrically on a shaft 20 with the element 8 and the coupling element 10 of the torque detection unit 9 via a contact surface 24 as a slip-poor connection.
  • a movable support is associated as a stationary mounted pivotable lever 13 parallel to the eddy current disc 11, which carries a magnet 14 in the outer region for the formation of an eddy current.
  • the rotational path of the lever 13 and the plane of rotation of the eddy current disc 11 runs approximately parallel.
  • the pivotable lever 13 has to secure an unattended release of a switching operation, an additional locking lever 17 which is formed via a pivot axis 27 as a two-armed lever.
  • the locking lever 17 is connected to one of the eddy current disc 11 contact-free associated magnet 18 on Provided sub-arm 21, wherein the locking lever 17 is biased on the pivot lever 13 via a spring element 22 and spread apart spread with his arm 21.
  • the locking lever 17 is held in the preloaded initial position via a stationary stop 19 as a lock and blocks the pivotable lever 13.
  • the pivotable lever 13 is released and is therefore also pivotable.
  • the torque-measuring unit 9, which is switched on in the drive train 6, 7, is combined with a reduction gear.
  • the shaft 20 has an output 23 to the brushing roller 5.
  • the element 8 is rotatably and immovably arranged as a drive pulley via a bearing on the shaft 20 and coupled to the coupling element as a clutch disc 10 to form a torque detection via a spring 25.
  • the clutch disc 10 is coupled to the shaft 20 via drivers and axially displaceable against the force of a spring 26.
  • connection to the drive 4 between the element as a drive pulley 8 and the coupling element 10 takes place in normal operation via the spring 25, wherein ribs 27 in the form of a ramp formation above a torque threshold, the coupling element 10 by rotation relative to the element 8 to the outside for coupling and to drive the Adjust eddy current disc 11.
  • floor care appliance as Bürststaubsauger, with a bottom facing brush attachment for receiving a driven brush roller with an overload protection
  • the brush attachment has at least one electric motor for a suction fan and for driving the brush roller, which is associated with a unit for torque detection, and a safety shutdown via a switching arrangement above a torque threshold Overload occurs
  • a driven element of the torque detection unit is arranged, which can be coupled above the torque threshold via a switchable coupling element with an associated rotary body as eddy current disc of electrically conductive material
  • the eddy current disc is associated with at least one magnet on a stationary mounted movable support is pivotally positioned, and an adjustment of the carrier by a generated by the generated eddy current magnetic field of the coupled eddy current disc, wherein the carrier controls a corresponding circuit arrangement, such as a switching element, as a safety shutdown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Claims (9)

  1. Appareil d'entretien du sol sous la forme d'un aspirateur à brosse, avec un élément avant à brosse (1) tourné vers le sol pour loger une brosse cylindrique (5) entraînée avec une sécurité de surcharge, l'élément avant à brosse (1) pouvant être relié par le biais d'un élément de liaison pivotable (3) en tant qu'embout de raccord pour un boîtier de filtre (2) démontable à une manette sous la forme de poignée par des raccords correspondants et l'élément avant à brosse comportant au moins un moteur électrique pour un ventilateur aspirant ainsi que pour l'entraînement de la brosse cylindrique (5), une unité (9) destinée à la saisie du couple étant attribuée à la brosse cylindrique (5) et une déconnexion de sécurité ayant lieu par surcharge au moyen d'un système de connexion au-dessus d'un arbre dynamométrique caractérisé en ce que dans les organes d'entraînement (6,7) est disposé un élément entraîné (8) de l'unité (9) pour la saisie du couple, qui peut être couplé au-dessus de l'arbre dynamométrique à un corps en rotation attribué sous la forme d'un disque à courant de Foucault (11) en matériau électroconducteur, au moins un aimant (14) étant attribué au disque à courant de Foucault (11), qui est positionné de manière à pouvoir pivoter sur un support (13) mobile logé fixement, un réglage du support (13) ayant lieu par un champ magnétique du disque à courant de Foucault (11) couplé, formé par le courant de Foucalt produit et le support (13) commandant un système de connexion correspondant, comme un élément de connexion (15), en tant que déconnexion de sécurité.
  2. Appareil d'entretien du sol selon la revendication 1, caractérisé en ce que le système de connexion (15) est constitué comme interrupteur électrique, un contact à lame souple, une barrière lumineuse ou un contacteur mécanique contraint par ressort.
  3. Appareil d'entretien du sol selon la revendication 1 à 2, caractérisé en ce que l'élément entraîné (8) de l'unité (9) destinée à la saisie du couple, attribue l'élément d'accouplement raccordable (10) au disque à courant de Foucault (11) par le biais d'une surface de contact en tant que liaison sans glissement.
  4. Appareil d'entretien du sol selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'aimant (14) est disposé sur le support mobile (13) à distance du disque à courant de Foucault (11) et les lignes de champ magnétiques traversent pour l'essentiel perpendiculairement les surfaces latérales du disque à courant de Foucault (11).
  5. Appareil d'entretien du sol selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'aimant (14) comprend le disque à courant de Foucault (11) sans contact en tant que culasse.
  6. Appareil d'entretien du sol selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le disque à courant de Foucault (11) est disposé sur un palier central pour rotation et fixation axiale de manière concentrique sur un arbre (20) avec l'élément entraîné (8) et l'élément d'accouplement (10).
  7. Appareil d'entretien du sol selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le support mobile (13) est constitué comme levier pivotable logé fixement, la trajectoire de pivotement de l'aimant (14) passant par le levier (13) presque parallèlement au plan de rotation du disque à courant de Foucault (11) .
  8. Appareil d'entretien du sol selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le support mobile (13) est constitué comme levier pivotable logé fixement, la trajectoire de pivotement de l'aimant (14) passant à distance par le levier (13) à proximité de la trajectoire de rotation extérieure du disque à courant de Foucault (11).
  9. Appareil d'entretien du sol selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'un levier d'arrêt (17) disposé pouvant pivoter sur le levier pivotable (13) en tant que support avec un aimant (18) attribué sans contact au disque à courant de Foucault (11), sur une partie de bras (21) du levier d'arrêt (17), le levier d'arrêt (17) étant précontraint sur le levier pivotant (13) par un élément à ressort (22) et la partie de bras (21) étant écartée, la partie de bras (21) écartée du levier d'arrêt (17) servant à la fois de blocage dans la position initiale précontrainte pour le levier pivotable (13) par le biais d'une butée fixe (19) et le levier d'arrêt (17) autorisant l'effet de blocage par les aimants (18) par pivotement lors de la rotation du disque à courant de Foucault (11) par un champ magnétique formé par le courant de Foucault produit.
EP15166366.3A 2014-05-06 2015-05-05 Appareil d'entretien du sol Active EP2944244B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014006676 2014-05-06
DE102014010099.5A DE102014010099B4 (de) 2014-05-06 2014-07-05 Bodenpflegegerät

Publications (2)

Publication Number Publication Date
EP2944244A1 EP2944244A1 (fr) 2015-11-18
EP2944244B1 true EP2944244B1 (fr) 2017-05-24

Family

ID=53040438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15166366.3A Active EP2944244B1 (fr) 2014-05-06 2015-05-05 Appareil d'entretien du sol

Country Status (4)

Country Link
US (1) US9737185B2 (fr)
EP (1) EP2944244B1 (fr)
CA (1) CA2890800C (fr)
DE (1) DE102014010099B4 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099291A (en) 1977-06-01 1978-07-11 Bowerman Leonard E Vacuum cleaner having magnetic drive for agitator brush
US4728942A (en) * 1985-12-09 1988-03-01 The Scott & Fetzer Company Self-powered rotation indicator
DE3913390A1 (de) * 1989-04-24 1990-10-25 Stein & Co Gmbh Einstellvorrichtung fuer bodenpflegegeraete
GB2468908B (en) * 2009-03-27 2012-06-20 Dyson Technology Ltd Clutch assembly

Also Published As

Publication number Publication date
CA2890800C (fr) 2022-12-06
US20150320276A1 (en) 2015-11-12
CA2890800A1 (fr) 2015-11-06
EP2944244A1 (fr) 2015-11-18
US9737185B2 (en) 2017-08-22
DE102014010099B4 (de) 2017-07-20
DE102014010099A1 (de) 2015-11-12

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