EP1396222B1 - Dispositif de brosse aspirante pour aspirateur - Google Patents

Dispositif de brosse aspirante pour aspirateur Download PDF

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Publication number
EP1396222B1
EP1396222B1 EP20030020058 EP03020058A EP1396222B1 EP 1396222 B1 EP1396222 B1 EP 1396222B1 EP 20030020058 EP20030020058 EP 20030020058 EP 03020058 A EP03020058 A EP 03020058A EP 1396222 B1 EP1396222 B1 EP 1396222B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
suction device
roller
bristly
brush suction
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.)
Expired - Lifetime
Application number
EP20030020058
Other languages
German (de)
English (en)
Other versions
EP1396222A2 (fr
EP1396222A3 (fr
Inventor
Bernhard Scheuren
Markus Cornelissen
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding 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
Priority claimed from DE20313354U external-priority patent/DE20313354U1/de
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP1396222A2 publication Critical patent/EP1396222A2/fr
Publication of EP1396222A3 publication Critical patent/EP1396222A3/fr
Application granted granted Critical
Publication of EP1396222B1 publication Critical patent/EP1396222B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L9/0444—Gearing or transmission means therefor for conveying motion by endless flexible members, e.g. belts

Definitions

  • the invention relates to a suction brush device for a vacuum cleaner according to the features of the preamble of claim 1.
  • Suction devices in particular suction brush devices of the type in question are known and are used in particular the suction brush cleaning of carpets, the suction is supported by electric motor driven, rotating bristle rollers whose bristle tufts solve the dust / dirt by mechanical action in the carpet.
  • the design of the action force of such bristle rollers is compromised, since on the one hand a high dust intake and on the other hand a gentle action on the carpet is desired.
  • Favorable to a high dust absorption have stiff bristles or bristle tufts and a high bristle board on the bottom of the device and high speeds affect. In this way, a high mechanical force can be introduced from the bristles in the carpet. At the same time, however, such an interpretation has a negative effect on the carpet damage.
  • Saugbürstenieri according to the preamble of claim 1 is approximately on the US Pat. No. 6,123,779 A1 , the US 5 056 175 A and the US 4,910,824 A directed.
  • the invention is based on the object, in a Saugbürsten réelle for a vacuum cleaner to design the effect of the bristle rollers on the carpet advantageous.
  • the action of the bristle roller is carried out in the carpet in dependence on a detected, used as a parameter for a rotational resistance of the bristle roller motor current.
  • a rotational resistance of the bristle roller motor current depends directly on the type of soil, whereby an adapted action of the bristle roller can be achieved by evaluating the motor current.
  • the action can be influenced by changing the rotational speed of the bristle roller.
  • driving electric motor is driven accordingly, so preferably by changing the speed by means of an electronic speed control of the electric motor.
  • a phase control a pulse-width modulation or other suitable methods may be used.
  • the board position of the bristle roller in the vertical direction is changeable.
  • the bristle roller can be mounted in a vertical slot.
  • preferred is a solution in which the bristle roller is attached to a bearing rocker.
  • the management position of the bristle roller can be influenced by changing a vertically acting spring loading of the bristle roller.
  • the spring preload acting on the bristle roller can be varied adapted to the measured rotational resistance and / or negative pressure.
  • a pneumatic solution for active action on the bristle roller can be achieved in that the spring is designed as an air spring, for example in the form of a bellows and the spring characteristic is adjusted by a respectively detected negative pressure in the suction channel.
  • the preferably adjustable spring loading acts on the bearing rocker and is combined with an oppositely acting spring for balancing.
  • a bearing of the bristle roller in the vertical direction is adjustable, so for example.
  • the bristle rollers can be supported on a rocker arranged in the suction device, which rocker can be influenced in its position by means of variable spring action or via a servomotor.
  • the adjustment of the bristle roller axis describes a circular line section, whose radius is chosen so large that a change in the bristle board position in the context of the invention is achieved in the vertical direction.
  • the adjustment of the bristle roller in the vertical direction can be effected by an actuator, which, for example, is designed in the form of an electromechanically acting actuating plunger. So this actuator can be an electrically extendable element. Also conceivable is a pneumatically extendable element or a bimetallic element. Next in this regard, a piezoelectric actuator or electrochemical actuator is conceivable. It is further proposed that without influence of the action of the bristle roller in the carpet actively adjustable element, the bristle roller is rather lifted from the carpet than is pressed on this.
  • the vertical control of the bristle roller can be used, for example, in the hard floor area to raise the bristle rollers manually by the user or by an automatic floor covering detection from the suction mouth area, whereby even coarser sucklers can pass this area.
  • Another significant advantage of the present invention is that the force introduced into the carpet is independent of the respective degree of wear of the bristles, which over the entire permissible operating life of the bristle rollers is always a uniform care of carpets of different types guaranteed.
  • the embodiment according to the invention improves the dust absorption of robust carpets without increasing the carpet wear on sensitive carpets.
  • a system is provided which actively controls the contact pressure of the bristles on the carpet and thus the height relative to the chassis of the suction device, ie without manual intervention by the user.
  • a motor-driven suction device 1 in the form of a suction brush device, which is formed in the embodiment shown as an attachment for a vacuum cleaner.
  • the brush device 1 is composed essentially of a housing 2 and a pipe connection piece 3.
  • a suction channel 4 extends from the pipe connection piece 3, starting in a suction chamber 5.
  • the latter is located in an end region, which faces away from the pipe connection piece 3 and extends almost over the entire housing width.
  • a separate drive in the form of an electric motor 6 is arranged, which via a toothed belt 7 a in the Suction chamber 5 extending drive shaft 8 is set in rotation.
  • the toothed belt 7 is located in a belt housing 9, which is mounted at the end facing away from the drive shaft 8 pivotally about an axis x. This axis x at the same time forms the power transmission axis of the electric motor 6 on the toothed belt 7 and is parallel to the drive shaft eighth
  • the toothed belt drive or the belt housing 9 extends approximately from the center of the suction chamber 5, starting perpendicular to the drive shaft 8 to the axis x.
  • the latter extends in each case from the drive disk 11, starting in a lateral end region of the suction chamber. 5
  • the Indian Fig. 1 Partially broken device bottom 13 is on the side facing away from the suction chamber 5, ie at the level of the pipe connection piece 3, penetrated by two rollers 14 arranged on both sides of the pipe connection piece 3.
  • the brushing device 1 is equipped with bristle rollers 16 for use as a conventional attachment for an electric vacuum cleaner for the maintenance of carpets, in particular for the suction.
  • These bristle rollers 16 are in the Fig. 1 shown in phantom.
  • Each bristle roller 16 is formed as a hollow body and is externally provided with two bristle rows 18 arranged offset by 180 °, which extend from an end region of the bristle roller 16 by approximately 180 ° spirally to the latter.
  • the bristle rollers 16 are pushed onto the drive shafts 8 and extend in the installed state, for example, starting from the receiving part 10, starting at The power transmission from the drive shaft 8 to a bristle roller 16 via a driver 12 of the drive shaft 8, which engages in a corresponding receptacle within the form of a hollow body bristle roller 16 frictionally.
  • the drive shafts 8 supporting belt housing 9 rocker about the axis x of the electric motor 6.
  • the orientation is in this case selected so that the bristles of the rows of bristles 18 protrude through a provided in the bottom 13 suction chamber opening 19 of the suction chamber 18 down over the bottom 13, whereby the bristles 16 mechanically engage in rotation of the bristle rollers 16 in the carpet to be cleaned 20.
  • a schematically indicated measuring device 21 is provided, with which the rotational resistance of the bristle rollers 16 is determined, this by evaluating the recorded motor current, which in turn depends on the type of carpet to be maintained 20.
  • About control algorithms is about the bristle rollers 16 in the Carpet 20 introduced force kept at a constant value. This can be done, for example, by changing the speed of the electric motor 6, wherein this speed change is preferably achieved by a phase control.
  • Fig. 3 An alternative solution is in Fig. 3 shown.
  • an unillustrated servo motor is controlled via the measuring device 21, by means of which an eccentric disk 24 acting on the rocker-like belt housing 9 is nadoverlagerbar.
  • the bristle board b is variably adjustable by changing the bristle roller axis y in the vertical direction (arrow a).
  • Another possibility consists in combining rotational speed adaptation and changing the management position of the bristle rollers 16 as a function of the determined values within the measuring device 21.
  • a force-generating air spring 30 in the form of a pneumatic bellows is provided, which influences the vertical position of the bristle roller 16 as a function of the vacuum prevailing in the suction chamber 5.
  • An increased negative pressure is detected when the carpet is partially sucked into the suction mouth of the suction chamber 5 and thereby engage the brush deeper into the carpet pile, as it allows a gentle carpet treatment.
  • an adjusted lifting of the bristle roller 16 takes place via the air spring actuating element 30.
  • the engagement of the bristles is increased by lowering the bristle roller 16.
  • the pneumatic unit air spring 30 arranged in the ambient pressure range, wherein the interior of the air spring 30 is connected via a line 31 to the vacuum-laden suction chamber 5.
  • the air spring 30 is supported at one end on the underside of a housing cover and with a free end on the upper side on the rocker-like belt housing 9.
  • the bellows of the air spring 30 contracts and tends to lift the bristle roller 16, to which a further acting on the bearing rocker and opposite to the spring action of the air spring 30 acting, not shown spring may be provided for balancing. With decreasing negative pressure, however, the bellows of the air spring 30 turns on with simultaneous displacement of the bristle roller 16 down.
  • the driving behavior and the force of the pneumatic element is adjustable.
  • Fig. 5 shows a further embodiment with a pneumatic actuator, in which case the air spring 30 in the space under pressure, that is arranged in the suction chamber 5 and the interior of the bellows-shaped air spring 30 is connected via a power 31 to the ambient pressure.
  • the air spring 30 is arranged on the underside of the rocker-like belt housing 9 and presses on this belt housing 9, the bristle rollers 16 tends to upward.
  • actuators 32 are provided for adjusting the bristle roller vertical position.
  • These actuators 32 may be a bimetallic element, a piezoelectric actuator, a motor, an electrochemical actuator or the like, wherein both the arrangement of the actuator 32 above the Belt housing 9 according to Fig. 6 as well as the lower side of same - as in Fig. 7 shown - is possible.
  • These actuators also preferably cooperate with a spring, not shown, acting in opposite directions.
  • the actuation of the actuator 32 is done via the evaluation of the recorded motor current and / or via the evaluation of the detected negative pressure, said negative pressure is determined by arranged in the vacuum-laden suction chamber 5 pressure sensor 33.
  • the measuring device 21 processes the signals of the pressure sensor 33 and the measurement data of the motor current to a drive signal for the actuator.
  • the bristle roller 16 can, for example, be raised even further from the ground, thus ensuring hard floor operation or activating the self-regulating system.
  • a spring or a spring-like material can support or dampen the action of the actuator or protect it from damage.
  • the trigger for this is a high-pile and / or dense carpet. This leads to an automatic lifting of the bristle roller 16, to thereby avoid carpet damage and to reduce the pushing forces and the engine heating. If both the negative pressure and the motor current are low, the trigger for this signal is a hard bottom. The bristle roller 16 is raised, wherein the lifting only takes place until a threshold for the motor current is reached. Thus, it can be determined in a floor covering change, whether the bristle rollers 16 are now on the carpet. By lifting the bristle rollers 16 hard soil damage is reduced and facilitates coarse material intake.
  • the tepid bottom requires more volumetric flow and / or more mechanics, whereupon the bristle roller 16 is lowered. It is hereafter introduced more mechanics in the carpet, whereby an increased dust absorption is ensured.
  • the bristle roller 16 engages too far into the carpet pile. In order to avoid carpet damage and thereby reduce the sliding forces and the engine heat, the bristle roller 16 is raised accordingly. At high negative pressure and low motor current is a dense carpet, the bristle roller 16 engages with their bristles too little in the carpet pile. The bristle roller 16 is lowered, whereby the brushing action is maintained.

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

Claims (16)

  1. Dispositif de brosse aspirante pour un aspirateur, pour l'entretien de moquettes (20), avec un canal d'aspiration (4), ainsi qu'un moteur électrique (6) et un ou plusieurs rouleaux de brossage (16) entraînés à partir de celui-ci, les rouleaux de brossage (16) étant maintenus de manière mobile et réglable en direction verticale (a) pour produire un effet différent sur la moquette (20), caractérisé en ce que l'effet du rouleau de brossage (16) dans le sol en moquette (20) est exercé en fonction d'un courant moteur détecté, exploité comme paramètre pour une résistance à la rotation du rouleau de brossage (16).
  2. Dispositif de brosse aspirante pour un aspirateur selon la revendication 1, caractérisé en ce qu'une influence peut être exercée sur l'effet, par une modification de la vitesse de rotation du rouleau de brossage (16).
  3. Dispositif de brosse aspirante pour un aspirateur selon la revendication 2, caractérisé en ce que la modification de la vitesse de rotation du rouleau de brossage (16) est effectuée au moyen d'une régulation électronique de vitesse de rotation du moteur électrique (6).
  4. Dispositif de brosse aspirante pour un aspirateur selon la revendication 3, caractérisé en ce que le rouleau de brossage (16) est monté en palier dans une fente verticale.
  5. Dispositif de brosse aspirante pour un aspirateur selon la revendication 3 ou 4, caractérisé en ce que le rouleau de brossage (16) est fixé sur un fléau de montage en palier.
  6. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 3 à 5, caractérisé en ce que la position avancée du rouleau de brossage (16) peut être influencée par modification d'une sollicitation élastique, agissant en direction verticale, du rouleau de brossage (16).
  7. Dispositif de brosse aspirante pour un aspirateur selon la revendication 6, caractérisé en ce que le ressort est réalisé sous forme de ressort pneumatique (30), et la caractéristique élastique est réglée au moyen d'un vide, chaque fois détecté, régnant dans le canal d'aspiration (4).
  8. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 3 à 7, caractérisé en ce que le montage en palier du rouleau de brossage (16) est réglable en direction verticale.
  9. Dispositif de brosse aspirante pour un aspirateur selon la revendication 8, caractérisé en ce que le réglage est effectué au moyen d'un actionneur (32).
  10. Dispositif de brosse aspirante pour un aspirateur selon la revendication 9, caractérisé en ce que l'actionneur (32) est un poussoir d'actionnement.
  11. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 9 ou 10, caractérisé en ce que l'actionneur (32) est un élément déployable électriquement.
  12. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 9 ou 10, caractérisé en ce que l'actionneur (32) est un élément déployable pneumatiquement.
  13. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 9 ou 10, caractérisé en ce que l'actionneur (32) est un élément bimétallique.
  14. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 9 ou 10, caractérisé en ce que l'actionneur (32) est un piézoactionneur.
  15. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 9 ou 10, caractérisé en ce que l'actionneur (32) est un actionneur électrochimique.
  16. Dispositif de brosse aspirante pour un aspirateur selon l'une des revendications 3 à 15, caractérisé en ce que l'effet d'un rouleau de brossage (16) dans la moquette (20) peut être exercé en fonction d'un vide détecté dans le canal d'aspiration (4).
EP20030020058 2002-09-07 2003-09-04 Dispositif de brosse aspirante pour aspirateur Expired - Lifetime EP1396222B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20213835U 2002-09-07
DE20213835 2002-09-07
DE20313354U 2003-08-27
DE20313354U DE20313354U1 (de) 2002-09-07 2003-08-27 Sauggerät, insbesondere Vorsatz oder Teil eines Elektro-Staubsaugers

Publications (3)

Publication Number Publication Date
EP1396222A2 EP1396222A2 (fr) 2004-03-10
EP1396222A3 EP1396222A3 (fr) 2005-03-23
EP1396222B1 true EP1396222B1 (fr) 2010-04-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030020058 Expired - Lifetime EP1396222B1 (fr) 2002-09-07 2003-09-04 Dispositif de brosse aspirante pour aspirateur

Country Status (2)

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EP (1) EP1396222B1 (fr)
CN (1) CN100500071C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9345371B2 (en) 2012-12-12 2016-05-24 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly
US10165916B2 (en) 2012-12-12 2019-01-01 Midea America, Corp. Vacuum cleaner base assembly and air passage system

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2422090B (en) * 2005-01-12 2008-07-02 Techtronic Ind Co Ltd Head for a suction cleaner
DE102010000573B4 (de) 2010-02-26 2022-06-23 Vorwerk & Co. Interholding Gmbh Verfahren zur Leistungssteuerung eines Saug-/Kehrgeräts
KR101287028B1 (ko) * 2011-03-04 2013-07-17 한경희 카펫 청소기
DE102015100483B4 (de) * 2015-01-14 2024-04-18 Vorwerk & Co. Interholding Gmbh Saugeinheit für einen Staubsauger
DE102016101040A1 (de) * 2016-01-21 2017-07-27 Vorwerk & Co. Interholding Gmbh Saugdüse für ein Saugreinigungsgerät
DE102017106367A1 (de) * 2017-03-24 2018-09-27 Vorwerk & Co. Interholding Gmbh Vorsatzgerät zur Teppichreinigung
DE102017118378A1 (de) * 2017-08-11 2019-02-14 Vorwerk & Co. Interholding Gmbh Bodenbearbeitungsgerät mit einem elektromotorisch angetriebenen Bodenbearbeitungselement
US11202543B2 (en) 2018-01-17 2021-12-21 Techtronic Floor Care Technology Limited System and method for operating a cleaning system based on a surface to be cleaned
DE102018116547B4 (de) * 2018-07-09 2020-08-20 Vorwerk & Co. Interholding Gmbh Saugdüse für einen Staubsauger zum Reinigen eines Teppichs und Staubsauger mit einer derartigen Saugdüse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679271A (en) 1986-03-14 1987-07-14 Tennant Company Automatic tool force compensator for a surface maintenance machine
JP2807883B2 (ja) * 1987-11-17 1998-10-08 アマノ株式会社 床面艶出機
DE3913390A1 (de) * 1989-04-24 1990-10-25 Stein & Co Gmbh Einstellvorrichtung fuer bodenpflegegeraete
US6123779A (en) * 1999-06-01 2000-09-26 Fantom Technologies Inc. Pressure based sensing means for adjusting the height of an agitator in a vacuum cleaner head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9345371B2 (en) 2012-12-12 2016-05-24 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly
US10165916B2 (en) 2012-12-12 2019-01-01 Midea America, Corp. Vacuum cleaner base assembly and air passage system

Also Published As

Publication number Publication date
EP1396222A2 (fr) 2004-03-10
CN100500071C (zh) 2009-06-17
CN1493245A (zh) 2004-05-05
EP1396222A3 (fr) 2005-03-23

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