EP2640250B1 - Appareil de nettoyage du sol roulant et insonorisé - Google Patents

Appareil de nettoyage du sol roulant et insonorisé Download PDF

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Publication number
EP2640250B1
EP2640250B1 EP10781657.1A EP10781657A EP2640250B1 EP 2640250 B1 EP2640250 B1 EP 2640250B1 EP 10781657 A EP10781657 A EP 10781657A EP 2640250 B1 EP2640250 B1 EP 2640250B1
Authority
EP
European Patent Office
Prior art keywords
recess
air
suction unit
accordance
floor cleaning
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
EP10781657.1A
Other languages
German (de)
English (en)
Other versions
EP2640250A1 (fr
Inventor
Frank Nonnenmann
Bernhard Maurer
Steffen Kurz
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 EP2640250A1 publication Critical patent/EP2640250A1/fr
Application granted granted Critical
Publication of EP2640250B1 publication Critical patent/EP2640250B1/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
    • 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
    • A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
    • 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 mobile floor cleaning device having the features of the preamble of claim 1.
  • Floor cleaning devices with at least one cleaning tool for cleaning a bottom surface and with a cleaning liquid tank and with a dirty liquid tank and a suction unit for receiving a cleaning liquid applied to the bottom surface and transferring the cleaning liquid into the dirty liquid container are known, for example, in the form of scrubbers, wherein one or more cleaning tools Scrub brushes are used, which contact the floor surface to be cleaned and clean with the aid of a cleaning liquid.
  • the cleaning fluid is stored in the cleaning fluid tank and applied to the floor area in the area of the scrub brushes. Under the action of the suction unit, the applied cleaning liquid is then taken up again together with dissolved dirt from the bottom surface and transferred to the dirty liquid tank.
  • Such floor cleaning devices are in the DE 196 44 570 A1 disclosed.
  • the suction unit usually has a suction turbine, which is driven by an electric motor to generate the required negative pressure, which is required for receiving the cleaning liquid applied to the bottom surface and for transferring the same into the dirty liquid tank. This is associated with a certain noise.
  • a cleaning device in the form of a spray extraction device is in the published patent application DE 10 2007 026 976 A1 described.
  • a pump cleaning liquid which is stored in a cleaning liquid container, are sprayed onto a surface to be cleaned, and by means of a suction unit, the sprayed cleaning liquid can be absorbed together with dissolved dirt and transferred to a dirty liquid container.
  • a suction unit To achieve the lowest possible noise is in the DE 10 2007 026 976 A1 proposed to arrange an engine compartment below the cleaning liquid container, which receives the suction unit.
  • Object of the present invention is to develop a mobile floor cleaning device of the generic type such that it has a lower noise.
  • a first depression is provided in the tank wall of the cleaning liquid tank or the dirty liquid tank formed.
  • the suction unit is arranged in the first recess.
  • the first recess is covered by a first cover member and starting from the first recess extending one or more air ducts to an opening, wherein the air ducts are formed by the tank wall and / or the first cover.
  • at least one channel region of at least one of the air ducts is formed in the bottom wall of the cleaning liquid tank.
  • the suction unit is positioned in the first recess, it is surrounded in the circumferential direction of the cleaning liquid tank or the dirty liquid tank, which dampens the noise of the suction unit and thus reduces the noise of the entire floor cleaning device.
  • the first depression which receives the suction unit, is covered by a first cover element.
  • the suction unit is in flow communication with the environment. It may also be provided that the suction unit sucks in cooling air for cooling and then emits them back to the environment.
  • the noise of the floor cleaning device is additionally insulated.
  • the provision of the at least one air duct by the tank wall and / or the first cover allows easy installation of the floor cleaning device. To provide a flow connection between the first recess, in which the suction unit is arranged, and an opening, it is only necessary to mount the first cover member to the tank wall, wherein it covers the first recess.
  • the at least an air duct is then bounded in the circumferential direction of the tank wall and the first cover member, and extends from the first recess to the opening through which, for example, the process air or cooling air can be discharged, or can be sucked through the cooling air.
  • At least one of the air ducts has a first channel region, which is formed in the first cover member, and a second channel region, which is formed in the tank wall.
  • the two channel areas can be joined together to form a complete air duct.
  • the channel areas can be connected to each other in the circumferential direction of the air duct. It is particularly advantageous if the two channel regions extend in the circumferential direction of the air duct each over an angular range of 180 °.
  • the channel regions are each groove-shaped and arranged one above the other.
  • the tank wall and / or the first cover element have at least three air ducts, wherein a first air duct forms an outlet for suction sucked by the suction unit, and wherein a second and a third air duct an input or an output channel for cooling air form the suction unit.
  • the at least three air ducts extend from the first recess receiving the suction unit.
  • the process air of the suction unit ie sucked by the suction unit suction air, are directed to the environment.
  • the noise of the floor cleaning device can be kept particularly low, and at the same time, the flow resistance for the process air and the cooling air can be reduced.
  • the length of the outlet channel for suction air is greater than the diameter of the first recess.
  • the length of the outlet channel is at least twice as large as the diameter of the first recess. This results in a particularly strong noise reduction.
  • the length of the inlet channel for cooling air and / or the length of the outlet channel for cooling air of the suction unit is greater than the diameter of the first recess. This also allows a noise reduction of the floor cleaning device.
  • At least one of the air ducts opens into an air outlet space.
  • suction air sucked by the suction unit and / or cooling air can be supplied to the air outlet space through which the air can then be discharged to the environment.
  • the air outlet space can in this case form a calming zone which results in additional noise reduction.
  • the air outlet space is designed as a second recess formed in the tank wall of the cleaning fluid tank or the dirty fluid tank. This allows a cost-effective production of the Heilauslassraums, which is configured in such an embodiment, as well as the space for receiving the suction unit as a recess of the cleaning liquid tank or the dirty liquid tank.
  • the second cover can be connected to the first cover, in particular, a one-piece design of a cover can be used, which assumes both the function of the first cover and the function of the second cover. Alternatively, it can also be provided that the first and the second cover element are designed as separate components.
  • the second cover member may be configured, for example, in the form of a cover plate.
  • the second cover is detachably connectable to the cleaning liquid tank or the dirty liquid tank.
  • a partition wall is arranged in the air outlet, which divides the air outlet into a first and a second sub-space, which are in fluid communication with each other, wherein at least one of the air ducts opens into the first subspace, and wherein the second subspace via a Outlet opening is in flow communication with the environment.
  • the suction unit suction air is supplied via an air duct to the air outlet space.
  • the air first passes into the first subspace, from which the air can then be discharged via the second subspace and the adjoining outlet opening to the environment.
  • the dividing wall is arranged on the second cover element.
  • the partition and the second cover are integrally connected to each other.
  • a further noise reduction is achieved in an advantageous embodiment of the invention in that in the first recess, a holding element is immersed, which receives an electric motor of the suction unit, and which is covered by the first cover.
  • the holding element can completely surround the electric motor in the circumferential direction and thereby additionally reduce the noise of the electric motor.
  • the holding element comprises a casing part which surrounds the electric motor in the circumferential direction, wherein between the casing part and the electric motor, a first annular space extends, which communicates with one of the air ducts in flow communication, said air duct receives cooling air of the suction unit.
  • This air duct can form the inlet channel or the outlet channel for cooling air of the suction unit, so that cooling air can be discharged from the annular space surrounding the electric motor or introduced into the annular space via the air duct.
  • the casing part is advantageously formed on a flange part, which forms the holding part in combination with the casing part.
  • a flange part which forms the holding part in combination with the casing part.
  • the first cover can be applied.
  • a second annulus which communicates with Saugauslässen the suction unit and one of the air ducts in flow communication
  • said air duct receives process air of the suction unit.
  • the process air of the suction unit that is, the suction air sucked in by the suction unit, can be released to the environment via the second annular space and via the adjoining air duct.
  • the first cover element is detachably connectable to the tank wall.
  • a screw connection is preferred.
  • the suction unit is held resiliently in the first recess.
  • the transmission of mechanical vibrations from the suction unit to the first recess can be kept low.
  • sealing elements can be used. It can be provided, for example, that the suction unit has two contact surfaces facing away from each other, wherein between a first contact surface of the suction unit and an end wall of the first recess a first resilient sealing element is arranged, and wherein between a second contact surface of the suction unit and the above-described shell part a second resilient sealing element is arranged.
  • the suction unit can be held between the casing part and the end wall of the first recess, wherein a direct contact of the suction unit on the end wall or on Jacket part is avoided, and thereby the risk is kept low that mechanical vibrations are transmitted from the suction unit to the front wall or to the shell part.
  • a third resilient sealing element is used for fixing the suction unit in the first recess, which is arranged between the suction unit and the above-explained flange part of the holding element.
  • the suction unit receiving the first recess is conveniently formed in a bottom wall of the cleaning liquid tank.
  • the cleaning liquid tank is configured as a hollow body, which has on its upper side facing away from the bottom surface to be cleaned a third recess which forms the dirty liquid tank and of a Cover is covered, and on its underside facing the bottom surface to be cleaned, the first recess which receives the suction unit and is covered by the first cover, wherein both the first recess and the third recess at least over a portion of its circumference from the interior of the cleaning liquid tank are surrounded.
  • cleaning liquid can be filled.
  • the second recess is surrounded by the interior of the cleaning liquid tank.
  • At least the first recess receiving the suction unit is circumferentially completely surrounded by the interior of the cleaning fluid tank, because this causes a particularly strong noise insulation.
  • an inventive floor cleaning device in the form of a scrubbing machine 10 is shown schematically, with the aid of a bottom surface 15 can be cleaned.
  • the scrubbing machine 10 has a one-piece hollow body 12, which is made of a plastic material and is seated on a chassis 14. On the chassis wheels 16 are rotatably mounted so that the scrubbing machine 10 along the bottom surface 15 can be moved.
  • a brush head 18 is held in front of the chassis 14, and behind the chassis 14, a suction bar 20 is arranged.
  • the brush head 18 has on its underside two rotatably mounted cleaning tools in the form of a first scrub roller 22 and a second scrub roller 23, and can, starting from its in FIG. 1 shown raised position for cleaning the bottom surface 15 are lowered to the bottom surface 15.
  • the suction bar 20 comprises in the usual way a not shown in the drawing to achieve a better overview of the suction lip, and may be from its in FIG. 1 shown elevated position in a lowered position are transferred, in which the suction lip contacts the bottom surface 15.
  • the hollow body 12 has on its bottom surface 15 facing the underside of a first recess 25 in which a suction unit 32 is arranged; and a second recess 27, which forms a Heilauslassraum 29 described in more detail below.
  • the inner space 34 of the hollow body 12 forms a cleaning fluid tank 36 which completely surrounds the third recess 30, that is to say the dirty liquid tank 26, as well as the second recess 27 forming the air outlet space 29, and the first recess 25 accommodating the suction unit 32.
  • the underside of the hollow body 12 is formed by a bottom wall 37 of the cleaning liquid tank 36, which has a first bottom wall section 38 extending substantially parallel to the bottom surface 15 and extending as far as the second recess 27. At the first bottom wall portion 38, an obliquely upward extending second bottom wall portion 39 connects in the second recess 27.
  • the first recess 25 is formed in the region of the rear end of the first bottom wall portion 38 in the same and has a side wall 40 which is integrally connected to the first bottom wall portion 38, and an end wall 41, from which a first suction channel 42 to the lid 28 extends.
  • the first suction channel 42 passes through the interior space 34 of the hollow body 12.
  • the cover 28 comprises a second suction channel 44, which adjoins the first suction channel 42. Via the first suction channel 42 and the second suction channel 44, the dirty liquid tank 26 can be subjected to negative pressure by the suction unit 32.
  • the dirty liquid tank 26 is connected via a known per se and therefore not shown in the drawing to achieve a better overview in the drawing with the suction beam 20 in flow communication.
  • a cleaning liquid preferably water
  • a cleaning liquid can be stored, which can be applied in the region of the brush head 18 to the bottom surface 15 to be cleaned.
  • the applied liquid can be taken up together with dissolved dirt particles by means of the suction bar 20 of the bottom surface 15 and transferred to the dirty liquid tank 26.
  • first recess 25 is covered by a first cover 51, which extends not only over the first recess 25, but up to the edge of the above the brush head 18 arranged second recess 27th
  • the first cover 51 is detachably connected by means of connecting screws 53 to the bottom wall 37.
  • the first cover element 51 covers a holding element 55, which dips into the first recess 25 and supports the suction unit 32.
  • the holding element 55 comprises a casing part 57 and a flange part 58 which are integrally connected to one another and, like the first covering element 51, are made of a plastics material.
  • the flange 58 is bolted to the bottom wall 37 and has a plurality of openings.
  • the suction unit 32 comprises a suction turbine 60 and an electric motor 61, which drives the suction turbine 60.
  • the electric motor 61 is received by the shell part 57, and the suction turbine 60 is disposed between the shell part 57 and the end wall 41 of the first recess 25.
  • a first resilient sealing element 63 is arranged, and between the suction turbine 60 and the shell part 57, a second resilient sealing element 64 is arranged.
  • a third resilient sealing element 65 is positioned between a rear side of the electric motor 61 facing away from the suction turbine 60 and the flange part 58.
  • the first cover member 51 forms in combination with the bottom wall 37 three air ducts.
  • a first channel-shaped channel area 68, a second channel-shaped channel area 69 and a third channel-shaped channel area 70 are formed in the first cover element 51
  • a fourth channel-shaped channel area 72, a fifth channel-shaped channel area 73 and a sixth channel-shaped channel area 74 are provided in the bottom wall 37 formed.
  • the first channel region 68 of the first cover 51 covers the fourth channel region 72 of the bottom wall 37.
  • the second channel region 69 of the first cover 51 covers the fifth channel region 73 of the bottom wall 37
  • the third channel region 70 of the first cover element 51 covers the sixth channel region 74 of the bottom wall 37.
  • the first channel region 68 in combination with the fourth channel region 72, forms a first air guide channel 76 which extends from the first depression 25 to the second depression 27 and there Opening 77 defined.
  • the second channel region 69 in combination with the fifth channel region 73, forms a second air guide channel 79, which likewise starts from the first depression 25, extends approximately to the middle of the first bottom wall section 38 and has a second opening 80 there.
  • the third channel region 70 in combination with the sixth channel region 74, forms a third air duct 83, which runs parallel to the second air duct 79 and ends in a third opening 84.
  • the third air duct 83 is disposed between the first air duct 76 and the second air duct 79, and is made shorter than the first air duct 76 and also shorter than the second air duct 79. As shown in FIGS Figures 3 and 4 becomes clear, the length of the first air duct 76 is a multiple of the diameter of the first recess 25, and also the length of the second air duct 79 is greater than the diameter of the first recess 25th
  • the suction turbine 60 has on its front wall 41 facing the front side of a suction inlet 86, can be sucked through the suction air into the suction turbine 60.
  • the suction turbine 60 includes a plurality of Saugauslässen 87, which are arranged distributed uniformly over the circumference of the suction turbine 60. Between the electric motor 61 and the shell portion 57, a first annular space 89 extends, and to the shell portion 57 and the suction turbine 60 extends within the first recess 25, a second annular space 91.
  • the Saugauslässe 87 of the suction turbine 60 open into the second annulus 91, the not shown in the drawing passages of the flange 58th is in flow communication with the first air duct 76.
  • the first air duct 76 thereby forms an outlet channel for the suction air sucked in by the suction unit 32, which can be supplied to the air outlet space 29 via the first air duct 76.
  • the arranged above the brush head 18 air outlet 29 is formed as a lower side formed in the hollow body 12 second recess 27 which is covered by a second cover member 95 on the brush head 18 side facing.
  • the second cover member 95 is configured plate-shaped and carries on its upper side facing away from the brush head 18 a vertically oriented partition 97, which divides the air outlet 29 into a first subspace 99 and a second subspace 101.
  • the partition wall 97 extends in the vertical direction, starting from the second cover element 95 only over a part of the entire vertical extent of the second recess 27, so that above the partition wall 97, a passage 103 is formed, via which the first subspace 99 with the second subspace 101 in Flow connection is.
  • the first air duct 76 opens into the first compartment 99, which can thus be supplied by the suction unit 32 sucked suction air.
  • the suction air can then pass through the passage 103 into the second compartment 101, from which it can be discharged via an outlet opening 104 to the environment.
  • the second air duct 79 opens into a central opening 93 of the flange 58 and forms an outlet channel for engine cooling air, which can be supplied to the electric motor 61 via the third air duct 83.
  • the third air duct 83 is in fluid communication with the first annular space 89 surrounding the electric motor 63 in the circumferential direction.
  • the electric motor 61 has in the usual way a per se known and therefore not shown in the drawing to achieve a better overview fan wheel, with the aid of cooling air from the first annulus 69 can be sucked.
  • the cooling air can then flow through the electric motor 61, and is discharged through the central opening 93 and the adjoining second air duct 79 to the environment.
  • the noise reduction is additionally supported by the resilient mounting of the suction unit 32 in the first recess 25 by means of the first, second and third sealing elements 63, 64 and 65, which prevent an immediate transfer of mechanical vibrations of the suction unit 32 to the cleaning liquid tank 36.
  • Suction air sucked in by the suction unit 32 can be supplied via the first air duct 76 to the first subspace 99 of the air outlet space 29, from which the air can then be discharged via the passage 103 to the second subspace 101 and then via the outlet opening 104 to the environment.
  • the scrubber 10 is therefore characterized by a relatively low noise.
  • the provision of the first cover 51 also has the advantage that the air ducts 76, 79 and 83 can be cleaned in a simple manner. For this purpose, it is only necessary to remove the first cover 51 from the bottom wall 37. For this purpose, the entire hollow body 12 relative to the chassis 14 about a parallel to the axes of rotation the scrub rollers 22, 23 aligned pivot axis (not shown in the drawing) are pivoted, so that the bottom wall 37 and mounted thereon the first cover 51 are accessible in a simple manner. In a corresponding manner, the second cover 95 is accessible, which can be removed if necessary - for example, for cleaning the Luftauslassraums.

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  • Cleaning In General (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Claims (18)

  1. Appareil de nettoyage du sol (10) roulant comportant au moins un outil de nettoyage (22, 23) permettant de nettoyer une surface de sol (15), un réservoir de liquide de nettoyage (36), un réservoir de liquide souillé (26) et un groupe d'aspiration (32) permettant de loger un liquide de nettoyage appliqué sur la surface de sol (15) et de transférer le liquide de nettoyage dans le réservoir de liquide souillé (26); une première cavité (25), dans laquelle le groupe d'aspiration (32) est disposé et qui est recouverte par un premier élément de recouvrement (51), étant formée dans la paroi du réservoir de liquide de nettoyage (36) ou du réservoir de liquide souillé (26); et la paroi de réservoir et/ou le premier élément de recouvrement (51) formant au moins un canal d'air (76, 79, 83) s'étendant de la première cavité (25) à une ouverture (77, 80, 84); caractérisé en ce qu'au moins une zone de canal (72, 73, 74) d'au moins un des canaux de guidage d'air (76, 79, 83) est ménagée dans la paroi inférieure (37) du réservoir de liquide de nettoyage (36).
  2. Appareil de nettoyage du sol (10) selon la revendication 1, caractérisé en ce qu'au moins un des canaux de guidage d'air (76, 79, 83) comprend une première zone de canal (68, 69, 70) qui est ménagée dans le premier élément de recouvrement (51); et une deuxième zone de canal (72, 73, 74) qui est ménagée dans la paroi de réservoir.
  3. Appareil de nettoyage du sol (10) selon la revendication 2, caractérisé en ce que les deux zones de canal (68, 69, 70, 72, 73, 74) sont en forme de rigole et sont superposées.
  4. Appareil de nettoyage du sol (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi du réservoir et/ou le premier élément de recouvrement (51) forment au moins trois canaux de guidage d'air (76, 79, 83), un premier canal de guidage d'air (76) formant un canal de sortie pour l'air aspiré par le groupe d'aspiration (32), et un deuxième et un troisième canal de guidage d'air (79, 83) formant un canal d'entrée et un canal de sortie pour l'air de refroidissement du groupe d'aspiration (32).
  5. Appareil de nettoyage du sol (10) selon la revendication 4, caractérisé en ce que la longueur du canal de sortie (76) pour l'air aspiré est plus grande que le diamètre de la première cavité (25).
  6. Appareil de nettoyage du sol (10) selon la revendication 5, caractérisé en ce que la longueur du canal de sortie (76) pour l'air aspiré est au moins deux fois plus grande que le diamètre de la première cavité (25).
  7. Appareil de nettoyage du sol (10) selon la revendication 4, 5 ou 6, caractérisé en ce que la longueur du canal d'entrée et/ou du canal de sortie pour l'air de refroidissement du groupe d'aspiration (32) est plus grande que le diamètre de la première cavité (25).
  8. Appareil de nettoyage du sol (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un des canaux de guidage d'air (76, 79, 83) débouche dans une chambre de sortie d'air (29).
  9. Appareil de nettoyage du sol (10) selon la revendication 8, caractérisé en ce que la chambre de sortie d'air (29) est réalisée sous la forme d'une deuxième cavité (27) ménagée dans la paroi du réservoir de liquide de nettoyage (36) ou du réservoir de liquide souillé (26).
  10. Appareil de nettoyage du sol (10) selon la revendication 8 ou 9, caractérisé en ce que la chambre de sortie d'air (29) est recouverte par un deuxième élément de recouvrement (95).
  11. Appareil de nettoyage du sol (10) selon l'une quelconque des revendications 8 à 10, caractérisé en ce qu'une cloison (97), qui divise la chambre de sortie d'air (29) en une première et en une deuxième partie (99, 101) qui sont en liaison fluidique l'une avec l'autre, est disposée dans la chambre de sortie d'air (29), au moins l'un des canaux de guidage d'air (76, 79, 83) débouchant dans la première partie (99) de la chambre et la deuxième partie (101) de la chambre étant en liaison fluidique avec l'environnement par l'intermédiaire d'une ouverture de sortie (104).
  12. Appareil de nettoyage du sol (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un élément de retenue (55), qui loge un moteur électrique (61) du groupe d'aspiration (32), et qui est recouvert par le premier élément de recouvrement (51), s'enfonce dans la première cavité (25).
  13. Appareil de nettoyage du sol (10) selon la revendication 12, caractérisé en ce que l'élément de retenue (55) comprend une partie d'enveloppe (57) qui entoure le moteur électrique (61), une première chambre annulaire (89), qui est en liaison fluidique avec un des canaux de guidage d'air (83), s'étendant entre la partie d'enveloppe (57) et le moteur électrique (61), ce canal de guidage d'air (83) recevant l'air de refroidissement du groupe d'aspiration (32).
  14. Appareil de nettoyage du sol (10) selon la revendication 12 ou 13, caractérisé en ce qu'une deuxième chambre annulaire (91), qui est en liaison fluidique avec au moins une sortie d'aspiration (87) du groupe d'aspiration (32) et avec un des canaux de guidage d'air (76), s'étend entre l'élément de retenue (55) et la paroi (40) de la première cavité (25), ce canal de guidage d'air (76) recevant l'air de traitement du groupe d'aspiration (32).
  15. Appareil de nettoyage du sol (10) selon la revendication 12, 13 ou 14, caractérisé en ce que le premier élément de recouvrement (51) est relié de manière détachable à la paroi de réservoir, une partie bride (58) de l'élément de retenue (55) étant disposée entre le premier élément de recouvrement (51) et la paroi de réservoir.
  16. Appareil de nettoyage du sol (10) selon l'une quelconque des revendications 12 à 15, caractérisé en ce que le groupe d'aspiration (32) est retenu de manière élastique dans la première cavité (25).
  17. Appareil de nettoyage du sol (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la première cavité (25) est ménagée dans une paroi inférieure (37) du réservoir de liquide de nettoyage (36).
  18. Appareil de nettoyage du sol (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le réservoir de liquide de nettoyage (36) est réalisé sous la forme d'un corps creux (12) qui présente sur sa face supérieure opposée à la surface de sol (15) une troisième cavité (30) qui forme le réservoir de liquide souillé (26) et qui est recouverte par un couvercle (28); et qui présente sur sa face inférieure tournée vers la surface de sol (15) la première cavité (25) qui reçoit le groupe d'aspiration (32) et qui est recouverte par le premier élément de recouvrement (51); la première cavité (25) et la troisième cavité (30) étant entourées sur au moins une partie de leur circonférence par l'espace intérieur (34) du réservoir de liquide de nettoyage (36).
EP10781657.1A 2010-11-15 2010-11-15 Appareil de nettoyage du sol roulant et insonorisé Not-in-force EP2640250B1 (fr)

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CN103866729B (zh) * 2012-12-13 2016-08-24 芜湖爱瑞特环保科技有限公司 一种磁耦合远距离高效传输机器人洗地机
WO2015086072A1 (fr) 2013-12-12 2015-06-18 Alfred Kärcher Gmbh & Co. Kg Machine mobile de nettoyage de sols
US10219670B2 (en) 2014-09-05 2019-03-05 Tennant Company Systems and methods for supplying treatment liquids having nanobubbles
CN109843134B (zh) * 2016-10-12 2021-03-30 阿尔弗雷德·卡赫欧洲两合公司 清洁设备和用于制造清洁设备的方法
WO2020169205A1 (fr) * 2019-02-22 2020-08-27 Alfred Kärcher SE & Co. KG Dispositif de nettoyage des sols

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US5369838A (en) * 1992-11-16 1994-12-06 Advance Machine Company Automatic floor scrubber
CN1045058C (zh) * 1994-01-14 1999-09-15 胡佛公司 清洗方式可转换的竖式地毯清洗脱液器
US5500977A (en) * 1994-01-14 1996-03-26 The Hoover Company Upright carpet extractor
US5920953A (en) * 1997-07-21 1999-07-13 Windsor Industries, Inc. Carpet and upholstery cleaner/extractor
DE102007026976A1 (de) * 2007-06-05 2008-12-11 Alfred Kärcher Gmbh & Co. Kg Reinigungsgerät

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EP2640250A1 (fr) 2013-09-25
WO2012065624A1 (fr) 2012-05-24
CN103209630A (zh) 2013-07-17

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