WO2012065624A1 - 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
WO2012065624A1
WO2012065624A1 PCT/EP2010/067494 EP2010067494W WO2012065624A1 WO 2012065624 A1 WO2012065624 A1 WO 2012065624A1 EP 2010067494 W EP2010067494 W EP 2010067494W WO 2012065624 A1 WO2012065624 A1 WO 2012065624A1
Authority
WO
WIPO (PCT)
Prior art keywords
recess
air
floor cleaning
suction unit
appliance according
Prior art date
Application number
PCT/EP2010/067494
Other languages
German (de)
English (en)
Inventor
Frank Nonnenmann
Bernhard Maurer
Steffen Kurz
Original Assignee
Alfred Kärcher Gmbh & 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 Kärcher Gmbh & Co. Kg filed Critical Alfred Kärcher Gmbh & Co. Kg
Priority to CN201080070169.4A priority Critical patent/CN103209630B/zh
Priority to PCT/EP2010/067494 priority patent/WO2012065624A1/fr
Priority to EP10781657.1A priority patent/EP2640250B1/fr
Publication of WO2012065624A1 publication Critical patent/WO2012065624A1/fr

Links

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 at least one cleaning tool for cleaning a bottom surface and a cleaning liquid tank and 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.
  • Such floor cleaning devices are known for example in the form of scrubbing machines, 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.
  • 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.
  • 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 mobile floor cleaning device of the type mentioned according to the invention that in the tank wall of the Cleaning liquid tanks or the dirty liquid tank, a first recess is formed, in which the suction unit is arranged and which is covered by a first cover, wherein the tank wall and / or the first cover at least one air guide channel forming extending from the first recess to an opening ,
  • a first recess is formed in the tank wall of the cleaning liquid tank or the dirty liquid tank.
  • 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 at least one air duct extends to an opening, wherein the air duct is formed by the tank wall and / or the first cover.
  • 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.
  • At least one air duct which extends from the first recess to an opening, is formed by the tank wall having the first recess and / or the first cover element.
  • the noise of the floor cleaning device is additionally insulated.
  • the Provision of the air duct by the tank wall and / or the first cover a simple installation of the floor cleaning device.
  • the first cover member 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 air duct is then limited in the circumferential direction of the tank wall and the first cover member and extending from the first recess to an 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 air duct has a first channel region, which is formed in the tank wall, and a second channel region, which is formed in the first cover.
  • first channel region which is formed in the tank wall
  • second channel region which is formed in the first cover.
  • 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 of the Train suction units.
  • at least three air ducts extend from the suction unit receiving the first recess.
  • the process air of the suction unit that is to say the suction air sucked in by the suction unit, can be conveyed to the surrounding area via a first air duct. be conducted.
  • a second air duct serves as an inlet channel for the cooling air of the suction unit, and a third air duct serves as an outlet channel for the cooling air of the suction unit.
  • the air ducts are formed by the tank wall and / or the first cover.
  • 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 air duct 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 air Auslassraums, 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 communicate with each other, wherein at least one air duct opens into the first subspace and wherein the second subspace via an outlet opening with the environment is in fluid communication.
  • the sucked by 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 separation of the Lucasauslassraums in two subspaces leads to an additional noise reduction.
  • 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 extending between the casing part and the electric motor, a first annular space, which communicates with an air duct in flow communication.
  • the air duct can in this case 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 annular space which is in flow communication with suction outlets of the suction unit and with an air duct.
  • 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 Seal element is arranged.
  • the suction unit can be held between the shell part and the end wall of the first recess, wherein a direct contact of the suction unit is avoided on the end wall or on the shell part, thereby minimizing the risk that mechanical vibrations from the suction unit to the end wall or be transferred 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.
  • At least one channel region of at least one air duct is formed in the 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.
  • Figure 1 a schematic side view of a mobile floor cleaning device
  • Figure 2 is a partial sectional view of the floor cleaning device of Figure 1 along the line 3-3 of Figure 3 with a suction unit, which is held in a first recess on a holding element and covered by a first cover;
  • Figure 3 is a bottom view of a cleaning liquid tank of the floor cleaning apparatus of Figure 1, wherein on a bottom wall of the cleaning liquid tank, a first and a second cover are mounted;
  • Figure 4 is a bottom view of the cleaning fluid tank according to Figure 3, with the first and second cover members removed;
  • Figure 5 is a sectional view of the floor cleaning device along the line 5-5 in Figure 3, and
  • FIG. 6 shows an enlarged view of the suction unit of FIG. 2 arranged on the holding element and covered by the covering element.
  • 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 be lowered starting from its raised position shown in Figure 1 for cleaning the bottom surface 15 on the bottom surface 15.
  • the suction bar 20 comprises a suction lip, not shown in the drawing to achieve a better overview, and can be transferred from its raised position shown in FIG. 1 into a lowered position in which the suction lip contacts the bottom surface 15.
  • the hollow body 12 has on its underside facing the bottom surface 15 on a first recess 25 in which a suction unit 32 is arranged, and a second recess 27, which forms an air outlet 29 described in more detail below.
  • a third recess 30, which forms a dirty liquid tank 26 and is covered by a cover 28.
  • the interior 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 26 and the first recess 25 receiving the suction unit 32 in the circumferential direction.
  • 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.
  • the first recess 25 is covered by a first cover element 51 which extends not only over the first recess 25 but also up to the edge of the second recess 27 arranged above the brush head 18.
  • 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 region 68 and a second channel-shaped channel region 69 and a third channel-shaped channel region 70 are formed in the first cover element 51, and a fourth channel-shaped channel region 72, a fifth channel-shaped channel region 73 and a sixth channel-shaped channel region 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 member 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 extending from the first recess 25 to the second recess 27 and there a first 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 and 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.
  • the length of the first air duct is 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 casing part 57, a first annular space 89 extends and around the casing part 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 over in the drawing, not shown 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 air outlet space 29 arranged above the brush head 18 is formed as a second recess 27 formed on the underside in the hollow body 12, which is covered by a second cover element 95 on the side facing the brush head 18.
  • 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 pass through the electric motor 61. flow 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 is accessible, which can be removed if necessary - for example, for cleaning the Luftauslassraums.

Landscapes

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

Abstract

L'invention concerne un appareil de nettoyage du sol roulant (10) comportant au moins un outil de nettoyage (22, 23), un réservoir de liquide de nettoyage (36), un réservoir de liquide souillé (26) et un groupe d'aspiration (32). Pour améliorer l'appareil de nettoyage (10) de telle manière qu'il génère moins de bruit, une première cavité (30) est formée dans la paroi du réservoir de liquide de nettoyage (36) ou du réservoir de liquide souillé (26) pour contenir le groupe d'aspiration (32), la cavité étant recouverte par un premier élément de recouvrement (51), 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 (30) à une ouverture (77, 80, 84).
PCT/EP2010/067494 2010-11-15 2010-11-15 Appareil de nettoyage du sol roulant et insonorisé WO2012065624A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080070169.4A CN103209630B (zh) 2010-11-15 2010-11-15 具有噪声抑制的能移动的地面清洁设备
PCT/EP2010/067494 WO2012065624A1 (fr) 2010-11-15 2010-11-15 Appareil de nettoyage du sol roulant et insonorisé
EP10781657.1A EP2640250B1 (fr) 2010-11-15 2010-11-15 Appareil de nettoyage du sol roulant et insonorisé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/067494 WO2012065624A1 (fr) 2010-11-15 2010-11-15 Appareil de nettoyage du sol roulant et insonorisé

Publications (1)

Publication Number Publication Date
WO2012065624A1 true WO2012065624A1 (fr) 2012-05-24

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ID=44342858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/067494 WO2012065624A1 (fr) 2010-11-15 2010-11-15 Appareil de nettoyage du sol roulant et insonorisé

Country Status (3)

Country Link
EP (1) EP2640250B1 (fr)
CN (1) CN103209630B (fr)
WO (1) WO2012065624A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015086072A1 (fr) 2013-12-12 2015-06-18 Alfred Kärcher Gmbh & Co. Kg Machine mobile de nettoyage de sols
WO2020169205A1 (fr) * 2019-02-22 2020-08-27 Alfred Kärcher SE & Co. KG Dispositif de nettoyage des sols

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US10219670B2 (en) 2014-09-05 2019-03-05 Tennant Company Systems and methods for supplying treatment liquids having nanobubbles
EP3525647B1 (fr) * 2016-10-12 2020-12-02 Alfred Kärcher SE & Co. KG Appareil de nettoyage et procédé de fabrication d'un appareil de nettoyage

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US5369838A (en) * 1992-11-16 1994-12-06 Advance Machine Company Automatic floor scrubber
US5761763A (en) * 1994-01-14 1998-06-09 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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Publication number Priority date Publication date Assignee Title
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5369838A (en) * 1992-11-16 1994-12-06 Advance Machine Company Automatic floor scrubber
US5761763A (en) * 1994-01-14 1998-06-09 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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015086072A1 (fr) 2013-12-12 2015-06-18 Alfred Kärcher Gmbh & Co. Kg Machine mobile de nettoyage de sols
CN105813530A (zh) * 2013-12-12 2016-07-27 阿尔弗雷德·凯驰两合公司 能行驶的地面清洁机
CN105813530B (zh) * 2013-12-12 2018-09-14 阿尔弗雷德·凯驰两合公司 能行驶的地面清洁机
US10357139B2 (en) 2013-12-12 2019-07-23 Alfred Kärcher SE & Co. KG Traveling floor cleaning machine
WO2020169205A1 (fr) * 2019-02-22 2020-08-27 Alfred Kärcher SE & Co. KG Dispositif de nettoyage des sols

Also Published As

Publication number Publication date
EP2640250B1 (fr) 2016-07-27
CN103209630B (zh) 2016-08-10
EP2640250A1 (fr) 2013-09-25
CN103209630A (zh) 2013-07-17

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