EP2873359B1 - Appareil d'entretien du sol doté de brosses à rouleaux entraînées - Google Patents

Appareil d'entretien du sol doté de brosses à rouleaux entraînées Download PDF

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Publication number
EP2873359B1
EP2873359B1 EP14191402.8A EP14191402A EP2873359B1 EP 2873359 B1 EP2873359 B1 EP 2873359B1 EP 14191402 A EP14191402 A EP 14191402A EP 2873359 B1 EP2873359 B1 EP 2873359B1
Authority
EP
European Patent Office
Prior art keywords
air
brush roll
roller body
floor care
care device
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
EP14191402.8A
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German (de)
English (en)
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EP2873359A1 (fr
Inventor
Stefan Tiekötter
Holger Ernst
David Buhl
Markus Penner
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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Publication of EP2873359A1 publication Critical patent/EP2873359A1/fr
Application granted granted Critical
Publication of EP2873359B1 publication Critical patent/EP2873359B1/fr
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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
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls

Definitions

  • the invention relates to a floor care device with a driven brush roller, which is otherwise also sometimes referred to as a brush roller or bristle roller, and a brush roller for a floor care device.
  • All types of vacuum cleaners ie in particular vacuum cleaners in the form of so-called upright vacuum cleaners, vacuum cleaners, hand or table vacuum cleaners, and vacuum robots, are suitable as floor care appliances.
  • upright vacuum cleaners and vacuum cleaners these include a self-contained as a floor care device conceivable suction in which the driven brush roller is located.
  • the housing of the vacuum robot and the suction attachment virtually coincide so that the driven brush roller is located in the housing of the vacuum robot.
  • the brush speed is in a range of about 3,000 revolutions per minute.
  • the following description is not limited to specific brush speeds.
  • the volume flow generated by a respective device fan also influences the dust mobilization.
  • the volume flow generated also causes the removal of the mobilized dust.
  • brush rollers are known from the prior art, which act as an air guide. Exemplary here on the AT 387 139 B and the US 6 032 327 A to get expelled.
  • compressed air is introduced, which is applied via openings in the lateral surface of the roller body targeted to the surface to be cleaned.
  • the compressed air applied to the floor surface mobilizes dust and dirt particles and thereby improves the cleaning performance of the brush roller.
  • the disadvantage here is the relatively high technical complexity and the additional energy required to return an air flow from the blower to the brush roller. Just like with In other household appliances and electrical appliances, energy efficiency is increasingly coming to the fore even in floor care appliances.
  • the invention thus raises the problem of increasing the efficiency of floor care appliances of the type mentioned. The approach described below is intended to contribute to this.
  • the GB 2 376 876 A discloses a brush roller for a vacuum cleaner in which are arranged inside the brush roller fans, wherein the fans aim at increasing the flow of air through the brush roller.
  • the disadvantage here is the high technical complexity and the additional electrical energy required to operate the fans.
  • a floor care appliance having the features of patent claim 1.
  • a floor care appliance comprising a rotatable brush roller for dust mobilization of the type mentioned at the outset that the interior of the brush roller acts as an air guiding element in the floor care appliance.
  • the brush roller is designed so that it can be traversed by air.
  • both the brush roller itself as well as their attachment in the floor care device is designed so that an entry of air into the interior of the brush roller and an exit of the incoming air through the surface of the brush roller is possible.
  • the brush roller thus functions - without supplying additional energy, for example in the form of electrical energy - as an additional dust-mobilizing blower.
  • the interior of the brush roller acts, for example, as a spoiler in the floor care device by the brush roller is designed as a hollow body, on the cylinder shell surface rise the bristle tufts and having in its surface a plurality of air passage openings and at least one end side a lateral opening.
  • the interior of the brush roller then acts like an axial fan, wherein the air guide belongs to the function of the fan blades of such an axial fan.
  • This hollow body forming the main body of the brush roller is referred to below as a roller body.
  • the invention is based on the recognition that the mobilization of the dust bound in a respective floor covering (dust mobilization) by the brush roller is mainly due to the rotation of the brush roller and the bristles engaging in the floor covering, so that due to the rotation of the brush roller but in the Area of brush circumference creates air turbulences which also contribute to the mobilization of the dust. It is therefore to be expected that the dust mobilization and the removal of the dust can be improved and thus the efficiency of the ground care device increases when the turbulence generated by the rotation is a preferred direction is impressed, so if the chaotic air movement receives a laminar component. This is achieved by the approach proposed here, by the interior of the brush roller as a spoiler and the brush roller itself acts like an additional blower in the floor care appliance.
  • the invention is also a brush roller, the interior of which, as described here and below, is permeable to air and functions as a spoiler, and which is intended and adapted for use in a floor care appliance of the type mentioned above.
  • backlinks indicate the further development of the subject matter of the main claim by the features of the respective subclaim. They should not be construed as a waiver of obtaining independent, objective protection for the feature combinations of the dependent claims.
  • backlinks indicate the further development of the subject matter of the main claim by the features of the respective subclaim. They should not be construed as a waiver of obtaining independent, objective protection for the feature combinations of the dependent claims.
  • backlinks indicate the further development of the subject matter of the main claim by the features of the respective subclaim. They should not be construed as a waiver of obtaining independent, objective protection for the feature combinations of the dependent claims.
  • it is to be assumed that such a restriction does not exist in the respective preceding claims.
  • the round, oval or slot-shaped air passage openings formed in the roller body are distributed uniformly over the surface of the roller body. Such a uniform distribution of the air passage openings causes a uniform over the surface of the roller body air flow through the roller body and thus a uniform improvement of dust mobilization due to the additional fan action of the air flow brush roller.
  • bristle tufts As a location of the air passage openings on the surface of the roller body relative to the likewise rising from the surface of the roller body bristle tufts come into position approximately in the middle between two bristle tufts or positions in the vicinity of a bristle tufts, in particular in the rotational direction in front of the bristle tufts into consideration.
  • Such positions of the air passage openings cause the bristle tufts of the air exiting through the air passage openings impose a peripheral speed when the brush roller rotates, ie a speed in the circumferential direction of the roller body and concretely in the direction of the rotational movement of the roller body.
  • a further embodiment of the floor care device or the brush roller is characterized in that a diameter or area of the air passage openings, starting from the or each open end face of the roller body, increases in the axial direction of the roller body.
  • the diameter or the area of the air passage openings, starting from the open end side increases in the direction of the closed end side.
  • the diameter or the area of the air passage openings increases starting from each open end side in the direction of the center of the roller body. This leads to a homogenization of the volume flow through the roller body and its air passage openings by the air resistance of the individual air passage openings is reduced relative to the location of entry of the air into the roll body.
  • the increase of the area / the diameter of an air passage opening leads to a reduction of the air resistance of the respective air passage opening.
  • This reduction in air resistance compensates for the resulting air resistance due to the air path within the roller body, which is greater for further from the location of entry of air into the roller body air passage openings than at air passage openings that are close to the location of entry of air into the roller body.
  • the respective surface / the respective diameter of an air passage opening is thus determined according to the distance of these air passage openings from the place of entry of the air into the roller body and thus corresponding to the resulting due to the airway within the roller body air resistance.
  • An alternative or additional possibility for equalizing the volume flow through the roller body and its air passage openings is that a number of the air passage openings, starting from the or each open end side of the roller body in the axial direction of the roller body increases.
  • An increased number of air passage openings in a section of the roller body has the same effect on the resulting volume flow as an increase in the area of individual air passage openings.
  • the or each air guiding means causes the air inside the brush roller to rotate more or more intensely upon rotation of the brush roller so that the rotating ambient air is under the influence of centrifugal force the air passage openings formed in the roller body emerges.
  • the or each air guide therefore leads to an increase in the volume flow through the brush roller and thus to an increase in the effect of the brush roller as an additional fan.
  • the air guiding means run in the interior of the brush roller in the axial direction of the brush roller along a helical line.
  • the interior of the brush roller then acts like an axial fan, wherein the air guiding the function the fan blade of such an axial fan belongs. Due to the helical course of the air guiding means in the interior of the brush roller, the air guiding means convey the ambient air, as it were, into the interior of the brush roller and thus contribute to a further increase in the volume flow through the brush roller.
  • this has in the interior of the brush roller on blocking means, so as to prevent or reduce in this way, for example, the escape of air through the roller body of the brush roller in the vicinity of a suction region of the floor care device. This helps to avoid or reduce unwanted swirling of already mobilized dust in the intake area of the floor care appliance.
  • peripheral housing parts which enclose the brush roller or otherwise define the space around the brush roller additionally have the function of a guide device and thereby support the directed volume flow in the floor care device.
  • the exhaust air emitted by the appliance fan is returned to the brush roller, in particular to the at least one side opening in the roller body, in order to assist the fan action of the brush roller.
  • the brush roller is actively supplied air and the air flow through the brush roller is essentially determined by the actively supplied amount of air and can be in this way, for example, regulate, so if necessary increase or decrease.
  • FIG. 1 shows a schematic simplified side view of a section through a floor care device 10, which is for example a suction attachment of a Upright- or vacuum cleaner or a vacuum cleaner.
  • the floor care device 10 comprises a driven, but at least rotatable brush roller 12, which has a cylindrical outer contour in a conventional manner, wherein on the cylindrical outer surface of a plurality of bristle tufts 14 (only shown individually) rise.
  • the brush roller 12 rotates to in a forward movement of the floor care device 10 against the direction of travel by an aspirated carpet pile or the like (not shown) sweeps.
  • This is illustrated by the pointing in the counterclockwise direction round arrow inside the brush roller 12.
  • the direction of travel during a forward movement of the ground care device 10 is illustrated by the left-pointing block arrow.
  • the representation in FIG. 1 includes individual sections of a housing 16 of the floor care appliance 10. These include outer and inner housing sections 16.
  • the housing sections 16 define the space in which the brush roller 12 rotates for dust mobilization and, moreover, the air path through the floor care appliance 10 due to one of them shown device fan in a conventional manner generated negative pressure.
  • the airway is in the illustration in FIG. 1 illustrated by four simple, straight arrows and accordingly enters the sucked air in the area of a front lower edge (suction) of the floor care device 10 in the interior of the floor care device 10 and passes the brush roller 12 on the one hand along the direction of rotation and on the other also opposite to the direction of rotation Brush roller 12.
  • the two air paths around the brush roller 12 merge downstream of the brush roller 12 again to an airway in the direction of the device fan and a filter arranged in a conventional manner upstream of the device fan (also not shown).
  • the brush roller 12 on the one hand has a cylindrical outer contour, but on the other hand, as a hollow body, namely here as a hollow cylinder is executed, so that the bristle tufts 14 rise on the surface of the resulting cylinder jacket.
  • the cylinder jacket-shaped hollow body is referred to below as the roller body 18.
  • This is at least one side (frontally) open and also has in the cylinder jacket section a plurality of air passage openings (air outlet openings) 20, of which in the sectional view in FIG. 1 only individual are shown.
  • the air passage openings 20, which are sometimes referred to below as openings 20 for short are distributed over the surface of the roller body 18 and, for example, as in FIG FIG.
  • the distributed over the entire lateral surface of the roller body 18 air passage openings 20 have a round base contour a diameter of a few millimeters, for example, a diameter in the range of 1 mm to about 5 mm.
  • a round base contour other possible basic contours, for example a slot-shaped base contour, come into consideration.
  • the dimension of such basic contours is chosen such that openings result with surfaces corresponding to the surfaces belonging to the above-mentioned diameters.
  • the at least one-sided lateral opening in the roller body 18, ie an open end side of the roller body 18 on both sides, allows the entry of air, in particular ambient air, into the interior of the roller body 18 and thus into the interior of the brush roller 12.
  • the air passage openings 20 allow the In this respect, the interior of the brush roller 12 acts as a spoiler and the brush roller 12 itself as an additional blower in the floor care device 10.
  • the special feature is also that for this additional fan action no supply of additional energy in the form of, for example, electrical energy is required.
  • the exiting from the air passage openings 20 improves air due to the blower effect the dust mobilization and the removal of dust.
  • the roller body 18 shown in the illustrated embodiment but basically optional, inside and stationary shut-off 22, which the air passage openings 20th shut off the roller body 18 in the intake.
  • the blocking means 22 is, for example, a cup-shaped blocking surface with a circular-arc-shaped sectional contour, the blocking surface having a smaller radius than the roller body 18 in the interior of the roller body 18 and concentric with the roller body 18 and in its longitudinal extension parallel to the longitudinal extension of the roller body 18 is arranged.
  • the at least one-sided lateral opening of the roller body 18 can be achieved by the roller body 18 itself at least one end open and the roller body 18 is rotatably mounted in the floor care device 10 by means of an outer bearing or by the roller body 18 laterally has a construction with two or more struts supporting a hub for rotatably supporting the roller body 18 and configured to substantially expose the side opening in the roller body 18.
  • This and the necessary strength can be achieved, for example, in that the area of each strut transverse to the axial direction of the roller body 18 is as small as possible and that the strut in the axial direction receives an extended design.
  • FIG. 2 shows in a schematic highly simplified representation of the brush roller 12 FIG. 1 without the surrounding floor care appliance 10.
  • the embodiment of the brush roller 12 can be seen as a hollow body with the cylinder jacket-shaped roller body 18 (main body), the rising on the outer surface of the cylinder shell bristle tufts 14 and the cylinder jacket penetrating air passage openings 20.
  • bristle tufts 14 are shown, wherein in a real design of the brush roller 12 is usually to start from a larger number of bristle tufts 14, which is different than in the orientation shown here parallel to the longitudinal direction of the brush roller, for example, in the longitudinal direction Brush roller 12 may also extend along a diagonal line or a helix or the like. Likewise, the representation of the position and the number of air passage openings 20 is to be understood only as an example.
  • FIG. 2 is the by the at least one side opening (frontal opening) in the roller body 18 laterally into the brush roller 12 and the roller body 18 incoming ambient air (flow air - in the illustration in FIG. 2 additionally symbolically denoted by "S") and shown again through the air passage openings 20 flow air in the form of simple arrows.
  • the brush roller 12 acts within the floor care device 10 as an additional fan.
  • the initially mentioned air flow through the roller body 18 results according to the principle of a radial fan, where pressure / negative pressure is known to be generated according to the centrifugal force principle.
  • the air inside is entrained due to the given at the interface between the air and the roller body surface friction and rotated due to the acting centrifugal force through the air passage openings 20 in the roller body 18 again from the brush roller 12.
  • the ambient air initially entered laterally into the brush roller 12 is thus pressed or ejected, as it were, during rotation of the brush roller 12, out of the air passage openings 20.
  • Further ambient air is sucked through the at least one lateral opening in the interior of the roller body 18 and exits due to the effects described above through the air passage openings 20 again.
  • the tufts 14 act like the blades of a roller radial fan. This air displacing action of the bristle tufts 14 as well as the pressure difference between the inside and the outside of the roller body 18 result in a directed continuous air movement through the brush roller 12 on the entire roller circumference.
  • FIG. 2 shows the roller body 12 with air passage openings 20 of substantially the same diameter.
  • the flow through the roller body 18 and a resulting volume flow through all the air passage openings 20 along the outer surface of the roller body 18 can be optionally even if the air passage openings 20 have different diameters, for example by starting from the location of the incoming into the roller body 18 ambient air increasing diameter.
  • the diameters of the air passage openings 20 accordingly increase starting from the open end side to the opposite closed end side.
  • the diameters of the air passage openings 20 increase starting from the two open end faces in the direction of the center of the roller body 18.
  • the roller body 18 is not cylindrical in its interior, but conical, wherein the inner diameter of the cone in the direction of the center of the roller body 18 or towards a closed end face of the roller body 18 decreases. Then, for equalization of the volume flow through all the air passage openings 20, the diameter of the air passage openings 20 not only from the axial distance of the respective air passage openings from the laterally open end side or from the nearest laterally open end, but also from the respective inner diameter of the roller body 18 at the location of the considered air passage openings 20th dependent, such that with decreasing inner diameter at the location of the air passage openings 20, the diameter of the respective air passage openings 20 increases.
  • FIG. 3 and FIG. 4 show particular embodiments of the brush roller 12, wherein the above applies accordingly for these embodiments and accordingly can be dispensed with repetitions here.
  • air-guiding means 24 may in this case extend in one piece over the entire length of the roller body 18 or in large numbers in the region of the bristle tufts 14 and / or the air passage openings 20 may be arranged.
  • the representation in FIG. 4 shows an embodiment of the brush roller 12 with radially oriented air guiding means 24, similar to a radial blower.
  • the air guiding means 24 can be designed as surfaces arranged at regular angular intervals and in the radial direction or as surfaces arranged at regular angular intervals and curved in the direction of rotation or against the direction of rotation (blades).
  • the representation in FIG. 4 shows an embodiment with paddle-shaped, curved in the direction of rotation air guiding means 24. Such air guiding means 24 may continue along the longitudinal extent of the roller body 18 linearly (axially or diagonally) or helically. In the illustration in FIG.
  • FIG. 4 shows - however, schematically simplified for a comparatively small number of air passage openings 20 along the longitudinal extent of the roller body 18 compared to a real version - also an embodiment of the brush roller 12 with starting from the here open on both sides enlarged surfaces, here due to increasing diameter, the air passage openings 20.
  • FIG. 4 shows - however, schematically simplified for a comparatively small number of air passage openings 20 along the longitudinal extent of the roller body 18 compared to a real version - also an embodiment of the brush roller 12 with starting from the here open on both sides enlarged surfaces, here due to increasing diameter, the air passage openings 20.
  • FIG. 5 shows a view of the floor care device 10 from FIG. 1 from underneath.
  • the air passage openings 20 formed in the roller body 18 of the brush roller 12 can be seen.
  • FIG. 5 The representation in FIG. 5 is intended to illustrate the course of the air flow in the soil care device 10. Shown is a situation with a brush roller 12 with open end sides on both sides, so that - as shown by the two lateral arrows and "S" illustrated - on both sides air (flow air), in particular ambient air, laterally into the roller body 18 of the brush roller 12 can occur.
  • FIG FIG. 5 illustrated by the diagonal arrows.
  • the arrow pointing to the right outside the floor care device 10 points in the direction of the device fan, not shown here.
  • the brush roller 12 is mounted in such a way in the housing 16 of the floor care device 10, that the air can enter through an opening in the side wall of the housing 16 and through the roller bearing into the cavity of the roller body 18.
  • the volume flow generated by the brush roller 12 is replaced by the negative pressure generated by the device fan a preferred direction, namely in the direction of the device fan.
  • the housing 16 of the floor care device 10 as well as there defined by a surface design airways act as a guide for the air flow.
  • the efficiency of such a distributor can, for example, still be increased by material thickening in the flow path and channels or the like left over between them.
  • FIG. 6 shows - as the illustration in FIG. 5 a floor care appliance 10 according to FIG FIG. 1 in a view from below.
  • the brush roller 12 used in this floor care apparatus 10 is a brush roller 12, as in FIG FIG. 3 is shown, so a brush roller 12 with air guide 24.
  • the representation in FIG. 6 shows - as shown in FIG. 5 - The course of the air flow due to the negative pressure generated by the device fan and due to the entering into the brush roller 12 and through the air passage openings 20 of the brush roller 12 leaking air in the soil care device 10th
  • FIG. 7 shows - with reference to the illustrations in FIG. 5 and FIG. 6 -
  • FIG. 7 shows - with reference to the illustrations in FIG. 5 and FIG. 6 -
  • an exhaust air of a suction fan only symbolically shown starting from the exhaust air region of the suction fan to the end faces or an end face of the brush roller 12 / of the roller body 18 is performed.
  • a channel not shown here or a plurality of such channels for returning the exhaust air to the brush roller 12 is or are located, for example, in a lateral portion of the housing 16 of the floor care device 10 and opens or open in the storage area of the roller body 18 (roller bearing) ,
  • Such a channel or such channels is or are an example of means for returning the exhaust air discharged from a device fan to the brush roller, in particular to an at least one side opening in the brush roller.
  • the return of the blower exhaust air to the brush roller 12 increases the amount of air flowing through the air passage openings in the brush roller 12 quite considerably and thus contributes to improved dust mobilization by means of the brush roller 12.
  • a floor care device 10 with a special brush roller 12 and consequently also such a brush roller 12, which is intended and set up for use in such a floor care device 10, are proposed.
  • the brush roller 12 is characterized - in short - by the fact that a roller body 18 of the brush roller 12 and its attachment in the floor care device 10 are designed to be permeable to air relative to the environment.
  • the brush roller 12 can be traversed by air and the interior of the brush roller 12 acts as an air guide for the inflowing and outflowing air.
  • the brush roller 12 thus functions in the floor care device 10 as an additional fan and the resulting air flow through the brush roller 12 improves the already achieved with the usual rotation of the brush roller 12 dust mobilization.
  • this additional fan effect and the resulting improved dust mobilization the overall efficiency of the ground care device 10 is increased without requiring additional energy in the form of, for example, electrical energy.

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

Claims (10)

  1. Appareil d'entretien des sols (10), avec un rouleau-brosse (12) rotatif destiné à mobiliser la poussière, dans lequel l'intérieur du rouleau-brosse (12) fonctionne en tant qu'élément de guidage d'air, dans lequel le rouleau-brosse (12) présente des moyens de guidage d'air (24) dans l'intérieur du rouleau-brosse (12), dans lequel les moyens de guidage d'air (24) sont constitués de telle sorte que les moyens de guidage d'air (24) conduisent à une augmentation du flux volumique à travers le rouleau-brosse (12), caractérisé en ce que
    l'intérieur du rouleau-brosse (12) fonctionne en tant qu'élément de guidage d'air par le fait que le rouleau-brosse (12) comprend en tant que corps de rouleau (18) un corps creux, avec une surface en forme d'enveloppe cylindrique, qui présente dans sa surface une pluralité d'ouvertures de passage d'air (20) et une ouverture latérale au moins sur un côté frontal.
  2. Appareil d'entretien des sols (10) selon la revendication 2, dans lequel les ouvertures de passage d'air (20) sont réparties uniformément sur la surface du corps de rouleau (18).
  3. Appareil d'entretien des sols (10) selon la revendication 2 ou 3, dans lequel les ouvertures de passage d'air (20) sont disposées dans la direction circonférentielle de façon centrée entre respectivement deux touffes de poils (14) s'élevant à partir de la surface du corps de rouleau (18).
  4. Appareil d'entretien des sols (10) selon la revendication 2 ou 3, dans lequel chaque ouverture de passage d'air (20) est disposée au voisinage d'une touffe de poils (14) s'élevant à partir de la surface du corps de rouleau (18).
  5. Appareil d'entretien des sols (10) selon l'une des revendications 2 à 5, dans lequel un nombre des ouvertures de passage d'air (20) ou une surface des ouvertures de passage d'air (20) augmente en partant du côté frontal ouvert ou de chaque côté frontal ouvert du corps de rouleau (18) dans la direction axiale du corps de rouleau (18).
  6. Appareil d'entretien des sols (10) selon l'une des revendications précédentes, avec des moyens de guidage d'air (24) dans l'intérieur du rouleau-brosse (12) qui sont placés dans la direction axiale du rouleau-brosse (12) le long d'une ligne d'hélice.
  7. Appareil d'entretien des sols (10) selon la revendication 7, avec des moyens de guidage d'air (24) avec des faces courbées dans la direction de rotation du rouleau-brosse (12).
  8. Appareil d'entretien des sols (10) selon l'une des revendications précédentes, avec des moyens de blocage (22) dans l'intérieur du rouleau-brosse (12).
  9. Appareil d'entretien des sols (10) selon l'une des revendications précédentes, avec des moyens de renvoi d'un air d'évacuation délivré par un ventilateur d'appareil vers le rouleau-brosse (12), en particulier vers une ouverture latérale au moins unilatérale dans le rouleau-brosse (12).
  10. Rouleau-brosse (12) destiné à être utilisé dans un appareil d'entretien des sols (10) selon l'une des revendications précédentes, dans lequel l'intérieur du rouleau-brosse (12) est destiné à, et agencé pour fonctionner en tant qu'élément de guidage d'air dans l'appareil d'entretien des sols (10) par le fait que le rouleau-brosse (12) comprend un corps de rouleau (18) perméable à l'air.
EP14191402.8A 2013-11-18 2014-11-03 Appareil d'entretien du sol doté de brosses à rouleaux entraînées Active EP2873359B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013112664.2A DE102013112664A1 (de) 2013-11-18 2013-11-18 Bodenpflegegerät mit einer angetriebenen Bürstenwalze und Bürstenwalze für ein Bodenpflegegerät

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EP2873359A1 EP2873359A1 (fr) 2015-05-20
EP2873359B1 true EP2873359B1 (fr) 2016-08-31

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CZ31974U1 (cs) 2018-06-12 2018-08-14 GETURA PLUS, spol. s r.o. Stacionární zařízení pro automatické čištění podlah místností
CN113679283B (zh) * 2020-05-19 2023-04-18 江苏美的清洁电器股份有限公司 吸尘器的地刷和具有其的吸尘器

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DE4007147A1 (de) * 1990-03-07 1991-09-12 Esta Apparatebau Absaugeinrichtung fuer schweisspistolen
KR100208133B1 (ko) * 1997-06-25 1999-07-15 최진호 진공청소기의 흡입장치
CA2251295C (fr) * 1998-01-27 2002-08-20 Sharp Kabushiki Kaisha Aspirateur electrique
JP2001346730A (ja) * 2000-06-09 2001-12-18 Matsushita Electric Ind Co Ltd 電気掃除機用吸込具並びに電気掃除機
JP3871517B2 (ja) * 2001-02-19 2007-01-24 東芝テック株式会社 吸込口体並びに循環式電気掃除機
KR100429991B1 (ko) * 2001-06-26 2004-05-04 엘지전자 주식회사 파워브러쉬를 구비한 진공청소기의 흡입헤드
DE102007002226B3 (de) 2007-01-10 2008-07-17 Miele & Cie. Kg Saugvorsatz für einen Staubsauger
US20100101044A1 (en) * 2008-10-29 2010-04-29 Craig John Salmond Beater bar with air injector
DE102011051729A1 (de) 2011-07-11 2013-01-17 Alfred Kärcher Gmbh & Co. Kg Selbstfahrendes Bodenreinigungsgerät

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EP2873359A1 (fr) 2015-05-20

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