EP2240061B1 - Appareil de nettoyage de sols à faible niveau sonore - Google Patents

Appareil de nettoyage de sols à faible niveau sonore Download PDF

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Publication number
EP2240061B1
EP2240061B1 EP08871644.4A EP08871644A EP2240061B1 EP 2240061 B1 EP2240061 B1 EP 2240061B1 EP 08871644 A EP08871644 A EP 08871644A EP 2240061 B1 EP2240061 B1 EP 2240061B1
Authority
EP
European Patent Office
Prior art keywords
exhaust air
housing
floor cleaning
cleaning
cleaning 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.)
Not-in-force
Application number
EP08871644.4A
Other languages
German (de)
English (en)
Other versions
EP2240061A1 (fr
Inventor
Jürgen Merz
Dietmar Schneider
Brunhold Roppelt
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP2240061A1 publication Critical patent/EP2240061A1/fr
Application granted granted Critical
Publication of EP2240061B1 publication Critical patent/EP2240061B1/fr
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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4097—Means for exhaust-air diffusion; Exhaust-air treatment, e.g. air purification; Means for sound or vibration damping

Definitions

  • the invention relates to a floor cleaning device having a housing, on the underside at least one drivable cleaning tool for removing dirt from a surface to be cleaned is arranged, as well as a suction unit for sucking the dirt and a dirt container for receiving the sucked dirt, wherein the floor cleaning device an exhaust air guiding device comprising, by means of which an exhaust air flow of the exhaust air of the suction unit can be aligned to at least one cleaning tool.
  • the suction unit usually has to provide a high suction power in order to be able to suck the dissolved dirt from the surface to be cleaned. This is typically done by the suction unit comprising a high speed fan. Due to the high speed of the blower, the exhaust air of the suction unit has a high flow velocity, which leads to a strong noise. To reduce noise has been proposed to equip the floor cleaning device with sound-absorbing elements or to let the exhaust of the suction unit at a portion of the floor cleaning device, which is as far as possible away from the user's hearing.
  • the FR 1 152 438 describes a floor cleaning device with a suction unit, a cleaning tool and an exhaust air guide device, can be passed to the exhaust of the suction unit to the cleaning tool.
  • the exhaust air exits the exhaust air guiding device in order to act on the floor surface and thereby detach dirt from the floor surface.
  • Another floor cleaning device is in the CA 2 317 345 A1 described.
  • Object of the present invention is to develop a floor cleaning device of the type mentioned in such a way that it has a lower noise.
  • an exhaust air flow of the exhaust air of the suction unit can be aligned by means of the exhaust air guiding device to a plurality of cleaning tools, in particular to each cleaning tool.
  • the suction unit In the receiving space, the suction unit is arranged, the exhaust air can be removed through at least one exhaust duct in at least one cleaning space formed on the housing, in which at least one cleaning tool is accommodated. This makes it possible to align the exhaust air flow targeted and structurally simple manner to the cleaning tool to effect a noise reduction.
  • the floor cleaning appliance comprises a cover part which can be detachably connected to the housing and has a first partial section delimiting at least one exhaust air duct at least in sections.
  • a cover part which can be detachably connected to the housing and has a first partial section delimiting at least one exhaust air duct at least in sections.
  • each cleaning room it is possible for a plurality of cleaning rooms, in particular each cleaning room, to be flow-connected to the receiving space via at least one exhaust air duct. Moreover, it is possible that more than one cleaning tool is arranged in a cleaning room and that the exhaust air flow is aligned only to one or more, in particular all of these cleaning tools.
  • a separate and, for example, formed by a hose exhaust duct is provided which connects the receiving space with at least one cleaning chamber.
  • the ends of the hose can be immersed in the receiving space and in the cleaning room.
  • the exhaust air flow can be aligned by means of the exhaust air guiding device to the side of the at least one cleaning tool which faces away from the surface to be cleaned. It has been shown that in this way the noise reduction can be increased. In addition, the orientation of the exhaust air flow on the side facing away from the cleaning surface of the cleaning tool is avoided that on the to be cleaned Area located dirt from the exhaust air flow is undesirably spatially distributed.
  • the at least one cleaning tool can be driven to rotate or oscillate about a rotation axis and the exhaust air flow can be aligned by means of the exhaust air guide device transversely to the axis of rotation on the at least one cleaning tool.
  • the exhaust air flow can be detected in this case by the rotating or oscillating movement of the cleaning tool and spatially distributed.
  • the at least one cleaning tool preferably has cleaning bristles and the exhaust air stream can be aligned with the cleaning bristles by means of the exhaust air guiding device. Due to the cleaning bristles, the exhaust air flow can be particularly effectively detected and distributed by the cleaning tool, whereby a significant noise reduction can be effected. Therefore, the teaching according to the invention has a particularly noise-reducing effect in a floor cleaning appliance whose cleaning tool has cleaning bristles, i. the cleaning tool is formed, for example, as a brush roller or disc brush.
  • the housing limits the exhaust air duct at least in sections.
  • a the exhaust air duct limiting portion of the housing is formed as an opening of the housing.
  • the housing comprises a wall delimiting the at least one cleaning chamber, which forms at least one outlet opening of an exhaust air duct.
  • About the outlet opening of the exhaust air flow can be introduced into the cleaning chamber and aligned with a cleaning tool disposed therein.
  • the at least one outlet opening is arranged on a portion of the at least one cleaning space bounding wall, which is opposite to that side of the at least one cleaning tool, which faces away from the surface to be cleaned. This makes it possible to align the exhaust air flow on one side of the cleaning tool, which faces the surface to be cleaned, in order to achieve the advantage already described above.
  • the at least one cleaning tool is elongate and if the at least one outlet opening is arranged approximately opposite the center of the at least one cleaning tool, with respect to its longitudinal extension. This makes it possible to align the exhaust air flow approximately to the center of the cleaning tool so that it can be grasped and distributed by as large a region of the cleaning tool as possible, thereby achieving an effective noise reduction.
  • the at least one outlet opening has a cross-sectional area that is greater than the minimum cross-sectional area of the exhaust air channel. This makes it possible to reduce the flow velocity of the exhaust air stream as it leaves the outlet opening relative to the velocity which is present in the region of the minimum cross-sectional area of the exhaust air duct. By reducing the flow velocity, the distribution of the exhaust air flow through the cleaning tool is favored.
  • the cover has a second portion, wherein the receiving space for the suction unit between the second portion and the housing is formed.
  • the suction unit can be held so that it can be solved together with the cover from the housing. It can also be provided that the suction unit can be fixed by means of the cover on the housing.
  • the cover part preferably has a cover lower part, with which the cover part can be detachably connected to the housing, and a cover upper part, which detachably connectable to the cover bottom.
  • the housing has at least one functional device receptacle for at least one functional device of the floor cleaning device.
  • This makes it possible to arrange the at least one functional device on the housing and, where appropriate, to fix it, so that the floor cleaning device can be given not only a compact design but also a technically simple construction.
  • it is thereby possible to provide the floor cleaning device service-friendly, for example, such that a plurality of functional device receptacles are formed close to each other on the housing, which is easily accessible.
  • the at least one functional device receptacle in the form of a recess formed on the housing is formed, for example in the form of a groove and / or a trough, which is formed in the housing.
  • the functional device receptacle is arranged on an upper side of the housing in order to allow a user easy access.
  • a functional device receptacle forms a dirt container receptacle in which the dirt container can be detachably arranged.
  • the dirt container can be removed from the dirt container receptacle, for example, for emptying and then be arranged in this again.
  • the floor cleaning appliance is particularly easy to service if at least one functional device or a cover which covers at least one functional device is accessible from the dirt container receptacle after removal of the dirt container.
  • at least one functional device or possibly its cover is released, so that it can be achieved in a comfortable manner.
  • a plurality of functional devices or optionally their covers are freely accessible. After loosening the dirt container from the dirt container receiving at least one functional device or an optionally existing cover thereof is freely accessible in such a configuration.
  • a functional device receptacle receives a fluid pump for conveying a cleaning fluid.
  • the cleaning liquid serves to act on the surface to be cleaned. It is typically water, to which a cleaning chemical may be added to increase the cleaning effect.
  • the liquid pump is in electrical connection with an electrical power supply. It is therefore advantageous if it is covered by a cover for protection against contact. By removing the dirt container from the dirt container receptacle cover is accessible. The liquid pump can therefore be easily replaced by a service technician when needed.
  • At least one functional device receptacle receives at least one liquid line that can be connected to the fluid pump.
  • the liquid line is conveniently in a groove-shaped Deepening.
  • the liquid line is transparent, it can be configured for example in the form of a transparent tube. This allows a user a simple visual inspection, ie he can check, for example, whether the liquid line is clogged or leaking. If necessary, he can replace the line without calling a service technician.
  • liquid pump with at least one liquid line and / or if two or more liquid lines are connected to each other by means of connectors, because this makes it easier for a user to separate the liquid pump from the liquid line and / or the liquid lines from each other in a simple manner.
  • At least one functional device receptacle receives at least one electrical device of the floor cleaning device.
  • the electrical device may be, for example, a control and / or regulating device, an electrical switching and / or connecting device or the like.
  • the electrical device is preferably covered by a cover for protection against contact.
  • At least one functional device receptacle receives at least one electrical line that can be connected to the electrical device, which is preferably accommodated in a groove-shaped depression formed on the housing.
  • the serviceability of the floor cleaning device is further enhanced by the fact that the electrical device with at least one electric Line and / or that two or more electrical lines are connected to each other by means of plug-in connections.
  • the connectors can be separated in particular by a service technician, which allows him to easily replace an electrical line and / or the electrical device.
  • the suction unit which typically has an electric motor drive for a turbine, can be connected to one or more electrical lines by means of plug connections.
  • a compact design of the floor cleaning device can be achieved if the housing has at least one opening for passing an electrical line and / or a liquid line.
  • a cleaning liquid is conducted by means of a liquid line, which is passed through an opening formed on the housing, to the underside of the housing in order to act on the surface to be cleaned.
  • the housing has at least one opening through which a medium can be sucked from the suction unit.
  • an opening formed on the housing can form an interface between a dirt pick-up device, which receives the detached from the surface to be cleaned dirt, and a suction tube, through which the dirt enters the interior of the dirt container.
  • the ease of service of the floor cleaning device can be further improved if the above-described openings of the housing and / or optionally disposable seals and / or filters are freely accessible to a user after removal of the dirt container from the dirt container receptacle.
  • the floor cleaning device has two cleaning tools in the form of rotatably mounted on the housing brush rollers and a drive device for the brush rollers, which is arranged in the housing between them and has a drive axis which is parallel to the axes of rotation of the brush rollers.
  • a thorough cleaning of the surface to be cleaned can be made.
  • the arrangement of the drive means between the brush rollers in the housing allows a compact design of the floor cleaning device.
  • the coaxial alignment of the brush rollers and the drive means makes it easier to transmit the drive force from the drive means to the brush rollers in a structurally simple manner.
  • the floor cleaning appliance can be designed as a scrubber-drier, in which a cleaning liquid is applied to the surface to be cleaned in order to facilitate the removal of the dirt by means of the brush rollers.
  • a preferred embodiment of a floor cleaning device according to the invention is schematically shown, which is presently designed as a scrubber 10. It has a housing 12, on the underside 14, two cleaning tools in the form of two brush rollers 16 and 18 are rotatably mounted about two axes of rotation 20 and 22 respectively.
  • the axes of rotation 20 and 22 are parallel to a surface to be cleaned and are perpendicular to an in FIG. 1 aligned with the reference numeral 24 cleaning direction of the scrubber 10 aligned.
  • To move the scrubber 10 forward or backward along the cleaning direction 24 serves a at the top 26 of the housing 12 about a parallel to the axes of rotation 20 and 22 extending pivot axis pivotally mounted push bar 28.
  • the push bar 28 is in a known and therefore not explained manner with a Not shown pivoting mechanism in operative connection, by means of which arranged on the underside 14 of the housing 12 support rollers 30, 31, 32 and 33 can be raised and lowered in the vertical direction. If the push bar 28 is pivoted out of the vertical, the support rollers 30, 31, 32 and 33 can be raised relative to the brush rollers 16 and 18, so that the brush rollers 16 and 18 contact the surface to be cleaned.
  • a dirt container 34 is placed in the form of a dirty water tank 36, on which in turn a fresh water tank 38 is placed.
  • the dirty water tank 36 and the fresh water tank 38 are explained in more detail below.
  • the housing 12 comprises a housing lower part 40 and a housing upper part 42, wherein the housing lower part 40 forms two cleaning chambers 44 and 46 in which the brush rollers 16 and 18 are arranged ( Figures 3 and 4 ).
  • the cleaning chambers 44 and 46 are bounded laterally and above by dome-shaped boundary walls 48 and 50, respectively, into which sprayers 52 and 54 are inserted at the top.
  • the spraying devices 52 and 54 can be supplied in a manner described below, a cleaning liquid, which in the cleaning rooms 44th and 46 can be sprayed to apply to the surface to be cleaned with the cleaning liquid.
  • a cleaning liquid which in the cleaning rooms 44th and 46 can be sprayed to apply to the surface to be cleaned with the cleaning liquid.
  • water is used as the cleaning liquid to which a cleaning chemical can be added to increase the cleaning effect.
  • dirt receiving devices in the form of suction bars 60 and 62 are arranged between the lower housing part 40 and the upper housing part. These can be subjected to negative pressure as described below in order to suck off a mixture of detached dirt and cleaning fluid, the so-called "dirty liquor", from the surface to be cleaned.
  • the housing 12 In its center, the housing 12 has a drive space 64 formed between the lower housing part 40 and the upper housing part 42, which receives a drive device 66 whose axis of rotation 68 is aligned parallel to the axes of rotation 20 and 22 of the brush rollers 16 and 18 respectively.
  • a driving force which can be provided by the drive device 66 can be transmitted to the brush rollers 16 and 18 by means of gear means, which are known per se and are not shown in the drawing, in order to drive them in rotation to clean the surface to be cleaned.
  • the upper housing part 42 has on the upper side 26 a dirty water tank receptacle 70 in the form of a trough-shaped recess which is formed in the upper side approximately plate-shaped upper housing part 42 ( FIG. 5 ). In the direction of rotation, the trough-shaped depression is bounded by a partially interrupted edge 72.
  • the dirty water tank 36 can be used by a user without tools and removed from this tool again without tools.
  • a user presents the scrubber 10 after removing the dirty water tank 36 and the fresh water tank 38 according to the in FIG. 2 shown top view, you can see from the push bar 28, not shown.
  • the fresh water tank 38 is, as already mentioned, placed on the dirty water tank 36 and with this via fasteners in the form of clamping brackets 74 and 76 detachably connectable.
  • a transport device in the form of a transporting bracket 78 which is pivotally mounted on the waste water tank 36 about a parallel to the axes of rotation 20 and 22 extending axis of rotation and can cover the fresh water tank 38 during transport.
  • a cleaning liquid which can be closed by means of a lid 80 can be used to fill a cleaning liquid into the fresh water tank 38.
  • the cleaning liquid Via a discharge line 82 extending within the fresh water tank 38, the cleaning liquid can be supplied to an outlet nozzle 84, which is arranged on a bottom wall 85 of the fresh water tank 38 ( FIG. 3 ).
  • the dirty water tank 36 has a bottom wall 86 with two openings, of which in FIG. 3 only one opening 88 can be seen. On each of them, turned upwards, a respective pipe socket 92 or 94 is arranged, over which two suction pipes 96 and 100 are slipped, the open ends of which are located in the interior 100 of the dirty water tank 36.
  • the perforations 88 of the bottom wall 86 with two openings 102 or 104 (FIGS. FIG. 2 ), which are formed in the upper housing part 42, to cover. Sealing elements 106 and 108 are disposed between the dirty water tank 36 and the upper housing part 42 at the openings 102 and 104, respectively.
  • the bottom wall 86 of the dirty water tank 36 also has a further opening 114, from which a pipe socket 116 projects upwards, over which a U-shaped suction pipe 118 is slipped ( FIG. 4 ).
  • a trough-shaped pump receptacle 120 for a liquid pump is formed on the upper housing part 42, which is not shown in the drawing, since it is covered by a cover 122 is, which is detachably connectable to the upper housing part 42.
  • the pump receptacle 120 adjacent to a shaft-shaped electrical receptacle 124 is formed for an electrical connection device in the form of a power strip, wherein the power strip is also not shown in the drawing, since it is also covered by the cover 122.
  • the liquid pump is connected via a supply line 126 and a valve 128, which comes into fluid connection with the waste water tank 36 placed on the upper housing part 42 with the outlet pipe 84, with the removal line 82 and thus the interior of the fresh water tank 38 in fluid communication.
  • two outgoing lines 132 and 134 are connected by means of a tee-shaped distribution line 130, wherein the distribution line 130 and the outgoing lines 132 and 134 are arranged in a groove-shaped line receptacle 135 formed on the upper housing part 42.
  • the liquid pump facing away from the ends of the outgoing lines 132 and 134 are connected via angled connecting pieces 136 and 138 which are arranged in trough-shaped receptacles 140 and 142, respectively, with the sprayers 52 and 54, respectively.
  • the connecting pieces 136 and 138 pass through apertures 144 and 146 of the upper housing part 42. In this way, via the connecting pieces 136 and 138 by means of the liquid pump through the withdrawal line 82, the supply line 126, the distribution line 130 and the outgoing lines 132 and 134 cleaning liquid are pumped to the sprayers 52 and 54, respectively, to apply the cleaning liquid to the surface to be cleaned.
  • All connections of liquid-carrying components of the scrubber 10 are designed as plug-in connections, i. the distribution line 130 is connected by means of a plug connection to the outlet of the liquid pump and to the outlet lines 132 and 134, which in turn are connected by means of plug connections via the connecting pieces 136 and 138 to the spraying devices 52 and 54, respectively.
  • the supply line 126 can also be plugged onto the valve 128 as well as onto the inlet of the liquid pump.
  • connectors allows a user to easily remove fluid-carrying lines during maintenance and / or repair of the scrubber 10 to replace or clean them. Due to the ability to remove the dirty water tank 36 without tools, these liquid-carrying lines are him freely accessible after removal of the dirty water tank 36. In contrast to the liquid-carrying lines, the liquid pump and the connector strip are covered to protect against contact by the cover 122. This can be removed by a service technician with a suitable tool so that he can get to the liquid pump and the connector strip.
  • a suction unit 150 For sucking off the dirty liquor from the surface to be cleaned in the interior 100 of the dirty water tank 36, the scrubber 10, a suction unit 150, with the inside 100, a negative pressure can be generated ( FIGS. 3 to 5 ).
  • the suction unit 150 can be driven by means of electrical energy and for this purpose comprises one in the Figures 3 and 4
  • the motor 152 may drive a turbine wheel, not shown in the drawing, which is arranged in a turbine wheel housing 154, which is also shown only schematically with its outline. Via a bottom-side seal 156, the suction unit 150 is placed on an edge 158 of a trough-shaped receptacle 160, which is formed approximately in the middle of the upper side 26 of the housing upper part 42.
  • a cover member 162 covering the suction unit 150 can be detachably connected to the upper housing part 42, in the present case by screwing by means of screws 164a, 164b, 164c, 164d, 164e.
  • the cover 162 is in two parts and has a cover bottom 166 for detachable screw connection to the housing upper part 42 and a cover top 168 which is releasably connectable to the cover bottom 166, in this case by screwing by means of two screws 170a, 170b (FIG. Figures 2 and 5 ).
  • the cover member 162 rests on the suction unit 150 on the upper side, so that by the screwing of the cover member 162 with the upper housing part 42, the suction unit 150 is subjected to a force in the direction of the upper housing part 42 becomes.
  • the suction unit 150 is reliably held in this way in a receiving space 172 formed on the upper housing part 42 between the cover part 162 and the upper housing part 42.
  • the cover 162 is freely accessible to a user after removing the dirty water tank 36 from the dirty water tank receptacle 70.
  • a service technician to detach the cover top 168 from the cover bottom 166 in order to gain access to an upper region of the suction unit 150 facing away from the upper housing part 42.
  • he can also solve the entire cover 162 from the upper housing part 42 and thus completely expose the suction unit 150. Since this is held solely by the application of force by the cover 162 on the upper housing 42, there is no need for further release of mechanical connection means to release the suction unit 150 from the housing 12.
  • the scrubber 10 has in this way a particularly high ease of service.
  • a plate-shaped cover element 174 rests on the edge 158 of the receptacle 160, which comprises a first opening 176 which is arranged below the fan wheel, and a second opening 178 which is arranged on the end of the cover element 174 facing away from the suction unit 150 (FIG. FIGS. 3 to 5 ). If the dirty water tank 36 is disposed in the dirty water tank receptacle 70, then the opening 178 with the opening 114 of the bottom wall 86 of the dirty water tank 36 coincides. Between the dirty water tank 36 and the cover 174 is a sealing filter element 180 is arranged. In this way, between the cover 174 and the upper housing part 42, an intake passage 182 is formed, via which the receiving space 172 through the pipe socket 116 and the suction pipe 118 is in flow communication with the inner space 100 to the negative pressure.
  • the cover element 174 can be detachably connected to the housing upper part 42, in the present case by connecting elements in the form of two screws 184a, 184b (FIG. FIG. 2 ). This makes it possible, after loosening the cover member 162 and the suction unit 150 from the housing 12 to release the cover member 174 from the housing 12, which may be required, for example, if there are foreign objects or the like in the intake passage 182 undesirably.
  • the filter element 180 After loosening the dirty water tank 36 of the dirty water tank receptacle 70, the filter element 180 is freely accessible, which has an advantageous effect on the serviceability of the scrubber 10, because this makes it possible to replace the filter element 180 in a simple manner or to clean.
  • the housing upper part 42 Adjacent to the receptacle 160, the housing upper part 42 has a trough-shaped depression 188 bordered by an edge 186, which opens into a shaft 190 which forms an opening 192 of the housing upper part 42 ( FIGS. 4 and 5 ).
  • the shaft 190 is bordered by a wall 194, which engages in the direction of the bottom 14 of the housing 12 in an opening 196 in the housing lower part 40.
  • the opening 196 widens in the direction of the surface to be cleaned, in the boundary wall 48 of the cleaning chamber 44 to form an outlet opening 198 of an exhaust duct 200 formed in this way.
  • the exhaust duct 200 forms an exhaust air ducting device for the exhaust air of the suction unit 150, and it is limited except from the upper housing part 42 and the lower housing part 40 of a portion of the cover member 162 which covers the edge 186. Through the exhaust duct 200 there is a flow connection between the receiving space 172 and the cleaning space 44, so that discharged from the suction unit 150 exhaust air can be passed through the exhaust duct 200 into the cleaning chamber 44.
  • a discharged from the suction unit 150 exhaust air flow can be passed in this way through the exhaust duct 200 through to the side facing away from the surface to be cleaned of the brush roller 16 and is effectively spatially distributed by this due to their rotational movement. This makes it possible to effectively reduce the usually very strong noise of the exhaust air flow of the suction unit 150.
  • the cleaning chamber 46 is in flow communication with the receiving space 172 for the suction unit 150 via an exhaust duct to align an exhaust air flow of the suction unit 150 on the brush roller 18.
  • the handling of the scrubber 10 is more user-friendly, and the risk of hearing loss of the user of the scrubber 10 due to excessive noise can be reduced.

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  • Cleaning In General (AREA)

Claims (14)

  1. Appareil de nettoyage de sol comprenant
    un carter (12) sur le côté inférieur duquel est agencé au moins un outil de nettoyage (16, 18) pouvant être entraîné et destiné à détacher des salissures d'une surface à nettoyer,
    ainsi qu'un groupe d'aspiration (150) destiné à aspirer les salissures, et un réservoir de salissures (34) destiné à accueillir les salissures aspirées,
    l'appareil de nettoyage de sol (10) comportant un système de guidage d'air d'échappement (200) au moyen duquel un flux d'air d'échappement de l'air d'échappement du groupe d'aspiration (150) peut être dirigé sur au moins un outil de nettoyage (16),
    caractérisé
    en ce que l'appareil de nettoyage de sol (10) comprend un compartiment d'accueil (172) pour le groupe d'aspiration (150) ainsi qu'au moins un compartiment de nettoyage (44) formé dans le carter (12) et destiné à accueillir au moins un outil de nettoyage (16), le système de guidage d'air d'échappement (200) formant au moins un canal d'air d'échappement (200), par l'intermédiaire duquel le compartiment d'accueil (172) est relié sur le plan de l'écoulement à au moins un compartiment de nettoyage (44), et en ce que l'appareil de nettoyage de sol (10) comprend une partie de couvercle (162), qui peut être reliée de manière amovible au carter (12) et présente un premier tronçon partiel délimitant au moins en partie au moins un canal d'air d'échappement (200), le groupe d'aspiration (150) étant maintenu sur une partie supérieure de carter (42) du carter (12) dans le compartiment d'accueil (172), qui est formé entre la partie de couvercle (162) et la partie supérieure de carter (42).
  2. Appareil de nettoyage de sol selon la revendication 1, caractérisé en ce que le flux d'air d'échappement peut être dirigé, au moyen du système de guidage d'air d'échappement (200), sur le côté dudit au moins un outil de nettoyage (16), qui est situé à l'opposé du côté dirigé vers la surface de sol à nettoyer.
  3. Appareil de nettoyage de sol selon la revendication 1 ou la revendication 2, caractérisé en ce que ledit au moins un outil de nettoyage (16) peut être entraîné en rotation ou en oscillation autour d'un axe de rotation (20), et le flux d'air d'échappement peut être dirigé, au moyen du système de guidage d'air d'échappement (200), transversalement à l'axe de rotation (20) sur ledit au moins un outil de nettoyage (16).
  4. Appareil de nettoyage de sol selon l'une des revendications précédentes, caractérisé en ce que ledit au moins un outil de nettoyage (16) comporte des poils de brosse de nettoyage et le flux d'air d'échappement peut être dirigé sur les poils de brosse de nettoyage, au moyen du système de guidage d'air d'échappement (200).
  5. Appareil de nettoyage de sol selon l'une des revendications précédentes, caractérisé en ce que le carter (12) délimite, au moins par tronçons, le canal d'air d'échappement (200).
  6. Appareil de nettoyage de sol selon la revendication 5, caractérisé en ce qu'un tronçon du carter (12) délimitant le canal d'air d'échappement (200), est réalisé en tant que traversée de passage du carter (12).
  7. Appareil de nettoyage de sol selon l'une des revendications précédentes, caractérisé en ce que le carter (12) comprend une paroi (48), qui délimite ledit au moins un compartiment de nettoyage (44), et forme au moins une ouverture de sortie (198) d'un canal d'air d'échappement (200).
  8. Appareil de nettoyage de sol selon la revendication 7, caractérisé en ce que ladite au moins une ouverture de sortie (198) est agencée dans un secteur de la paroi (48) délimitant ledit au moins un compartiment de nettoyage (44), et est en regard du côté dudit au moins un outil de nettoyage (16), qui est situé à l'opposé du côté dirigé vers la surface de sol à nettoyer.
  9. Appareil de nettoyage de sol selon la revendication 7 ou la revendication 8, caractérisé en ce que ledit au moins un outil de nettoyage (16) est d'une configuration allongée, et en ce que ladite au moins une ouverture de sortie (198) est agencée en regard environ du milieu dudit au moins un outil de nettoyage (16) en se référant à l'étendue longitudinale de celui-ci.
  10. Appareil de nettoyage de sol selon l'une des revendications 7 à 9, caractérisé en ce que ladite au moins une ouverture de sortie (198) présente une surface de section transversale, qui est supérieure à la surface de section transversale minimale du canal d'air d'échappement (200).
  11. Appareil de nettoyage de sol selon l'une des revendications précédentes, caractérisé en ce que la partie de couvercle (162) comporte un deuxième tronçon partiel, le compartiment d'accueil (172) pour le groupe d'aspiration (150) étant formé entre le deuxième tronçon partiel et le carter (12).
  12. Appareil de nettoyage de sol selon l'une des revendications précédentes, caractérisé en ce que la partie de couvercle (162) présente une partie inférieure de couvercle (166) à l'aide de laquelle la partie de couvercle (162) peut être reliée de manière amovible au carter (12), ainsi qu'une partie supérieure de couvercle (168), qui peut être reliée de manière amovible à la partie inférieure de couvercle (166).
  13. Appareil de nettoyage de sol selon l'une des revendications précédentes, caractérisé en ce que l'appareil de nettoyage de sol (10) comprend deux outils de nettoyage sous la forme de rouleaux de brosse (16, 18) montés rotatifs dans le carter, ainsi qu'un dispositif d'entraînement (66) pour les rouleaux de brosse (16, 18), qui est agencé entre ces derniers dans le carter (12), et présente un axe d'entraînement (68) s'étendant parallèlement aux axes de rotation (20, 22) des rouleaux de brosse (16, 18).
  14. Appareil de nettoyage de sol selon l'une des revendications précédentes, caractérisé en ce que l'appareil de nettoyage de sol (10) est réalisé en tant qu'autolaveuse aspirante (10).
EP08871644.4A 2008-02-01 2008-12-06 Appareil de nettoyage de sols à faible niveau sonore Not-in-force EP2240061B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008008069A DE102008008069A1 (de) 2008-02-01 2008-02-01 Bodenreinigungsgerät
PCT/EP2008/010361 WO2009095055A1 (fr) 2008-02-01 2008-12-06 Appareil de nettoyage de sols à faible niveau sonore

Publications (2)

Publication Number Publication Date
EP2240061A1 EP2240061A1 (fr) 2010-10-20
EP2240061B1 true EP2240061B1 (fr) 2017-10-25

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EP (1) EP2240061B1 (fr)
CN (1) CN101932275B (fr)
DE (1) DE102008008069A1 (fr)
WO (1) WO2009095055A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008008066A1 (de) 2008-02-01 2009-08-06 Alfred Kärcher Gmbh & Co. Kg Bodenreinigungsgerät
CN102973211A (zh) * 2012-11-26 2013-03-20 苏州德汇清洁科技有限公司 一种消音器及使用该消音器的洗地机
DE102015109797B4 (de) * 2015-06-18 2022-08-25 Vorwerk & Co. Interholding Gmbh Reinigungsgerät in Form einer als Teppichbürste ausgebildeten Saugdüse als Vorsatzgerät für einen Staubsauger
CN111358379B (zh) * 2018-12-26 2022-03-04 苏州尚腾科技制造有限公司 水箱组件及具有该水箱组件的洗地机
DE102021116686B3 (de) * 2021-06-29 2022-08-25 Hako Gmbh Bodenreinigungsmaschine

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FR1152438A (fr) 1956-06-21 1958-02-17 Clean Up Service Appareil de nettoyage à double effet
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US5383251A (en) * 1994-01-21 1995-01-24 Clarke Industries, Inc. Floor scrubber having interlocking tanks
DE29607848U1 (de) * 1996-04-30 1997-09-04 Diethelm & Co. AG, Zürich Bodenreinigungsmaschine, insbesondere Scheuersaugmaschine
US6088873A (en) * 1997-10-20 2000-07-18 Breuer Electric Mfg. Co. Floor cleaning machine and method
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CA2317345A1 (fr) 2000-08-10 2002-02-10 Roger Vanderlinden Vehicule automoteur de nettoyage de plancher d'usine
DE10110907A1 (de) * 2001-03-07 2002-09-19 Kaercher Gmbh & Co Alfred Bodenreinigungsgerät
US6971137B2 (en) * 2001-10-09 2005-12-06 Tennant Company Floor maintenance machine with air-cooled motor

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Also Published As

Publication number Publication date
EP2240061A1 (fr) 2010-10-20
CN101932275B (zh) 2014-09-10
WO2009095055A1 (fr) 2009-08-06
DE102008008069A1 (de) 2009-08-06
CN101932275A (zh) 2010-12-29

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