EP3796821B1 - Nassreinigungsvorrichtung - Google Patents

Nassreinigungsvorrichtung Download PDF

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Publication number
EP3796821B1
EP3796821B1 EP19745180.0A EP19745180A EP3796821B1 EP 3796821 B1 EP3796821 B1 EP 3796821B1 EP 19745180 A EP19745180 A EP 19745180A EP 3796821 B1 EP3796821 B1 EP 3796821B1
Authority
EP
European Patent Office
Prior art keywords
wet cleaning
cleaning device
suction
mopping
wcd
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19745180.0A
Other languages
English (en)
French (fr)
Other versions
EP3796821A1 (de
Inventor
Anke Rieka MEULENDIJKS
Michiel Allan Aurelius Schallig
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to PL19745180T priority Critical patent/PL3796821T3/pl
Publication of EP3796821A1 publication Critical patent/EP3796821A1/de
Application granted granted Critical
Publication of EP3796821B1 publication Critical patent/EP3796821B1/de
Active 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
    • A47L11/4094—Accessories to be used in combination with conventional vacuum-cleaning 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
    • A47L11/4011—Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
    • 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
    • A47L11/4036—Parts or details of the surface treating 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0686—Nozzles with cleaning cloths, e.g. using disposal fabrics for covering the nozzle
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2826—Parameters or conditions being sensed the condition of the floor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2842—Suction motors or blowers
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
    • 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
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
    • A47L2201/06—Control of the cleaning action for autonomous devices; Automatic detection of the surface condition before, during or after cleaning

Definitions

  • the invention relates to a wet cleaning device.
  • Hard floor cleaning is traditionally done by first vacuuming the floor, followed by mopping it. Vacuuming removes the coarse dirt, while mopping removes the stains. These days there are more and more appliances on the market that claim to vacuum and mop in one go. Also robot vacuum cleaners offer the solution of vacuum cleaning and mopping the floor. For this a water tank with mop is attached towards the (vacuum cleaning) robot.
  • US2014033468 discloses a floor tool in the context of a vacuum cleaning appliance that has a dual functionality.
  • the floor tool provides a suction cleaning function and, secondly, the floor tool has the capability to carry a cleaning element, preferably in the form of a wiping sheet, to wipe the floor surface at the same time as vacuuming the floor surface.
  • the suction nozzle is configured to float relative to the connecting neck of the floor tool which confers several benefits. Firstly, the downwards force applied to the user via the neck is transmitted directly to the support member, but not to the suction nozzle, the downwards pressure improving the cleaning performance of the wipe sheet carried on the support member. Secondly, since very little downwards force is applied to the suction nozzle, it is able to ride lightly across the floor surface which benefits the pickup performance of the suction nozzle.
  • US2017367552 discloses a self-moving floor treatment device that comprises a machine body base and a water tank.
  • a cleaning cloth is attached onto the bottom of the water tank, and the water tank is connected to the bottom surface of the machine body base in a manner of floating up and down.
  • the water tank and the cleaning cloth can float up and down within a certain range of space.
  • the force that actually acts on the floor is just the gravity of the water tank and the cleaning cloth themselves and does not comprise the gravity of the machine, compared with a common product, the friction force between the cleaning cloth and the floor is reduced, the phenomenon that the machine slips on the floor with water can be effectively avoided, the floor cleaning efficiency is improved and the obstacle crossing ability of the machine with the water tank is improved.
  • a wet cleaning device comprising a mopping unit for wet cleaning a surface, and an arrangement for increasing a pressure of the mopping unit to the surface by means of suction.
  • This arrangement includes a hose at a side of the mopping unit, the hose having an opening for applying suction to the surface.
  • the hose may be present at opposite sides of the mopping unit.
  • the hose may be present around the mopping unit.
  • a suction power of the arrangement is controllable.
  • the suction power is controllable in dependence on a detection of stains, a speed of the wet cleaning device, and/or a type of the surface. If the wet cleaning device is formed by a mopping robot vacuum cleaner, the suction for the arrangement is advantageously a part of a suction generated for vacuum cleaning.
  • the invention is based on the recognition that wet cleaning devices like robot vacuum cleaners are preferably not very heavy, so that a user can easily pick them up.
  • wet cleaning devices like robot vacuum cleaners are preferably not very heavy, so that a user can easily pick them up.
  • a surface e.g. a floor
  • wet cleaning device needs to be low in weight to be easily lifted, but on the other hand, it should provide enough pressure on the floor to enable the wet cleaning device to mop the surface properly. To overcome this contradiction, it is necessary to provide a way to apply force on the ground without making the wet cleaning device heavier.
  • Embodiments of the invention provide an area of under-pressure around the mopping unit so that the mopping unit will suck itself to the ground.
  • the under-pressure can advantageously be generated by leading a part of the airflow of the vacuum cleaner through a tube system around the mop.
  • Figs. 1 and 2 relate to a wet cleaning device WCD formed by a mopping robot vacuum cleaner.
  • the mopping robot vacuum cleaner has wheels W, a nozzle N with an optional rotating brush B, and a mopping unit MU.
  • the mopping unit MU has a liquid tank (not shown) and a (replaceable) cleaning cloth.
  • a suction tool ST is provided at a side of the mopping unit MU.
  • the suction tool ST is formed by a hose having multiple openings around the mopping unit MU.
  • the hose may have a slit-shaped opening.
  • the hose may be made of rubber or some suitable plastic or other suitable material.
  • the hose may be glued to the mopping unit MU.
  • a dirt separation and collection unit DC dirty air from the nozzle N is guided to a dirt separation and collection unit DC, through which an airflow is generated by a fan F.
  • part of the airflow generated by the fan F is used to generate suction for the suction tool ST.
  • a valve V is present to control how much airflow can be used for the suction tool ST.
  • the valve V may be formed by means of a clamp around a hose: if the hose is compressed by the clamp, less suction is available for the suction tool ST.
  • a processor anyway present in a robot cleaner receives data (e.g. from a camera (not shown), and has software that can determine the presence of stains and the surface type from the camera image. This software may involve artificial intelligence based on a trained neural network.
  • the wheel speed can be derived e.g. from an amount of current drawn by a motor that rotates the wheels W: if the current is relatively high, the motor has to work hard, so that it makes sense to reduce the suction for the suction tool to reduce friction.
  • a rectangular robot vacuum cleaner has been shown with a rectangular mopping unit MU.
  • the wet cleaning device may have a different shape (e.g. round), and the same holds for the mopping unit MU, which may e.g. have the shape shown in US2017367552 .
  • the mopping unit MU is surrounded by the suction tool ST, but in other embodiments, the suction tool ST is just present at a side or at opposite side of the mopping unit MU.
  • the suction tool ST does not need to be along a side, i.e. it does not need to have an elongated shape, as long as it results in the mopping unit MU exercising an increased pressure on the surface.
  • the wet cleaning device of the present invention may also be arranged for cleaning (vertical) surfaces like windows or walls.
  • the wet cleaning device of the present invention does not need to have a vacuum cleaner function.
  • the wet cleaning device may or may not use the vacuum cleaner fan F for creating suction to increase a pressure of the mopping unit to the surface; a separate low-power fan may be used for this purpose, and this may result in the advantage that a better control of mopping pressure may be achieved, independent of vacuuming activities.
  • a wet cleaning device having a vacuum cleaner function may have different operation modes: (1) only vacuum cleaning, (2) only wet cleaning, and (3) both vacuum cleaning and wet cleaning.
  • the second mode use of a separate suction unit for generating under-pressure may result in the advantage that less energy is consumed.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps other than those listed in a claim.
  • the word “a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the invention may be implemented by means of hardware comprising several distinct elements. In the device claim enumerating several means, several of these means may be embodied by one and the same item of hardware. Measures recited in mutually different dependent claims may advantageously be used in combination.

Landscapes

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

Claims (8)

  1. Nassreinigungsvorrichtung (WCD), umfassend:
    eine Wischeinheit (MU) zur Nassreinigung einer Oberfläche, und
    eine Anordnung (ST) zum Erhöhen eines Drucks der Wischeinheit auf die Oberfläche mittels Saugen, dadurch gekennzeichnet, dass
    die Anordnung (ST) einen Schlauch an einer Seite der Wischeinheit (MU) umfasst, wobei der Schlauch eine Öffnung zum Beaufschlagen von Saugwirkung auf die Oberfläche aufweist.
  2. Nassreinigungsvorrichtung (WCD) nach Anspruch 1, dadurch gekennzeichnet, wobei der Schlauch an gegenüberliegenden Seiten der Wischeinheit (MU) vorhanden ist.
  3. Nassreinigungsvorrichtung (WCD) nach Anspruch 1, wobei der Schlauch um die Wischeinheit (MU) herum vorhanden ist.
  4. Nassreinigungsvorrichtung (WCD) nach einem der vorhergehenden Ansprüche, wobei eine Saugleistung der Anordnung (ST) steuerbar ist.
  5. Nassreinigungsvorrichtung (WCD) nach Anspruch 4, wobei die Saugleistung in Abhängigkeit von einer Fleckenerkennung steuerbar ist.
  6. Nassreinigungsvorrichtung (WCD) nach Anspruch 4 oder 5, wobei die Saugleistung in Abhängigkeit von einer Geschwindigkeit der Nassreinigungsvorrichtung steuerbar ist.
  7. Nassreinigungsvorrichtung (WCD) nach Anspruch 4, 5 oder 6, wobei die Saugleistung in Abhängigkeit von einer Art der Oberfläche steuerbar ist.
  8. Nassreinigungsvorrichtung (WCD) nach einem der vorhergehenden Ansprüche, wobei die Nassreinigungsvorrichtung durch einen Wischroboter-Staubsauger gebildet ist, wobei die Saugwirkung für die Anordnung Teil einer zum Staubsaugen erzeugten Saugwirkung ist.
EP19745180.0A 2018-08-07 2019-08-01 Nassreinigungsvorrichtung Active EP3796821B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19745180T PL3796821T3 (pl) 2018-08-07 2019-08-01 Urządzenie do czyszczenia na mokro

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18187638.4A EP3607864A1 (de) 2018-08-07 2018-08-07 Nassreinigungsvorrichtung
PCT/EP2019/070805 WO2020030526A1 (en) 2018-08-07 2019-08-01 Wet cleaning device

Publications (2)

Publication Number Publication Date
EP3796821A1 EP3796821A1 (de) 2021-03-31
EP3796821B1 true EP3796821B1 (de) 2021-12-15

Family

ID=63168294

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18187638.4A Withdrawn EP3607864A1 (de) 2018-08-07 2018-08-07 Nassreinigungsvorrichtung
EP19745180.0A Active EP3796821B1 (de) 2018-08-07 2019-08-01 Nassreinigungsvorrichtung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18187638.4A Withdrawn EP3607864A1 (de) 2018-08-07 2018-08-07 Nassreinigungsvorrichtung

Country Status (6)

Country Link
US (1) US20210251452A1 (de)
EP (2) EP3607864A1 (de)
KR (1) KR20210038440A (de)
CN (1) CN112423636A (de)
PL (1) PL3796821T3 (de)
WO (1) WO2020030526A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7150593B2 (ja) * 2018-12-26 2022-10-11 株式会社クボタ 作業車両
JP1737434S (ja) * 2022-03-21 2023-02-21 掃除機器用水タンク

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DE102006061196A1 (de) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Bodendüse für Hartböden
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Also Published As

Publication number Publication date
KR20210038440A (ko) 2021-04-07
EP3796821A1 (de) 2021-03-31
PL3796821T3 (pl) 2022-04-11
CN112423636A (zh) 2021-02-26
US20210251452A1 (en) 2021-08-19
WO2020030526A1 (en) 2020-02-13
EP3607864A1 (de) 2020-02-12

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