EP0658089A1 - Automate mobile pour le nettoyage du sol - Google Patents

Automate mobile pour le nettoyage du sol

Info

Publication number
EP0658089A1
EP0658089A1 EP93919154A EP93919154A EP0658089A1 EP 0658089 A1 EP0658089 A1 EP 0658089A1 EP 93919154 A EP93919154 A EP 93919154A EP 93919154 A EP93919154 A EP 93919154A EP 0658089 A1 EP0658089 A1 EP 0658089A1
Authority
EP
European Patent Office
Prior art keywords
dirty
liquid compartment
cleaning machine
liquid
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.)
Withdrawn
Application number
EP93919154A
Other languages
German (de)
English (en)
Inventor
Franz Kresse
Rainer Osberghaus
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.)
Ecolab GmbH and Co oHG
Original Assignee
Henkel Ecolab GmbH 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 Henkel Ecolab GmbH and Co KG filed Critical Henkel Ecolab GmbH and Co KG
Publication of EP0658089A1 publication Critical patent/EP0658089A1/fr
Withdrawn legal-status Critical Current

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
    • A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • A47L11/4022—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids with means for recycling the dirty liquid
    • 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

Definitions

  • the invention relates to a mobile floor cleaning machine with an integrated fresh and dirty liquid compartment, with a cleaning rotor to be supplied from the fresh liquid compartment and with at least one suction nozzle conveying into the dirty liquid compartment, the fresh and dirty liquid compartment being separated from one another by an intermediate wall and in the dirty liquid compartment there is a negative pressure in relation to the ambient pressure in the operating state.
  • Such a mobile floor cleaning machine is known (Floordress BA 4300 from the applicant).
  • cleaning liquid is sprayed onto the floor to be treated from a separate fresh liquid compartment via the rotor.
  • the rotor is used to scrub.
  • a bar-like water suction nozzle following the rotor when the machine is pushed forward serves to collect the dirty water still remaining after scrubbing, so that the floor can be scrubbed thoroughly in one operation and, at the same time, can be wiped dry, that is, vacuumed off.
  • a disadvantage of the known floor cleaning machine is that after emptying the fresh liquid compartment filled with the cleaning liquor and the corresponding filling of the dirty liquid compartment with suctioned off dirty cleaning liquor, the cleaning process must be interrupted after a certain operating time, since the fresh liquid compartment is refilled and the dirty liquid compartment accordingly must be emptied.
  • the object of the invention is to improve a generic floor cleaning machine in such a way that it has a larger radius of action with a reliable, blockage-free method of operation and is easy to maintain.
  • the radius of action of such a floor cleaning machine is significantly increased, since the cleaning liquid can be reused several times without the reliability of the machine being impaired thereby.
  • the floor cleaning machine initially works like a conventional generic machine, ie the corresponding cleaning liquid is dispensed from the fresh liquid compartment and the soiled cleaning liquid is then poured into the dirty water s' techniksabteil sucked. During operation, the two compartments are separated from each other in a pressure-tight manner, ie there can be no liquid exchange between the compartments.
  • the extracted dirty liquid can therefore already sediment in the dirty liquid compartment during operation, or coarse dirt particles can be retained by appropriate filter devices.
  • the cleaning process is interrupted and pressure equalization is brought about in both compartments, then the connection is opened, so that due to the level difference in both liquid compartments, the returned dirty liquid flows into the fresh liquid compartment, due to the long residence time in the dirty liquid Essentially no solid particles enter the fresh liquid compartment since these have already settled on the bottom of the dirty liquid compartment. There is thus a discontinuous return of the dirty liquid into the fresh liquid compartment; after the liquid exchange or transition, the connection between the two compartments is closed again in a pressure-tight manner, whereupon the cleaning process can begin again.
  • connection between the dirty and fresh liquid compartment is designed as a closable opening in the intermediate wall.
  • the closure of the opening can advantageously only be actuated when the automatic machine is not in the operating or cleaning state, so that it can be reliably avoided that the opening can be opened during cleaning and that a liquid exchange can take place.
  • the opening in the intermediate wall is provided with a slide, the operating end of which, in the open state, projects beyond the upper edge of the intermediate wall forming a support for the cover. It is then reliably ensured that only after opening the lid, i.e. after the cleaning process has been interrupted and the negative pressure in the dirty liquid compartment has been released through the opening of the cover, the opening can be released and thus a liquid transfer is possible. At the same time, the machine can only be put into operation again or the lid closed when the slide is fully inserted and thus completely closes the opening in the intermediate wall.
  • the slide is guided in guide rails on the intermediate wall and on the closing is designed as an elastic ball.
  • the negative ball in the dirty liquid compartment seals the elastic ball into the opening in the intermediate wall and closes it completely.
  • the opening in the intermediate wall is arranged approximately in the lower third of the same. It is then ensured that a sufficient amount of liquid can get into the fresh liquid section from the dirty liquid section. Since both compartments expediently have approximately the same volume, it is then ensured that the fill level in both compartments settles at the same level during the overflow process. However, it should be ensured that the opening is not in the immediate vicinity of the bottom surface in order to avoid that sedimented solid particles of the dirty liquid can pass into the fresh liquid compartment.
  • the suction nozzle in the dirty liquid section is provided with a removable sieve bag.
  • This configuration is particularly advantageous when particularly dirty floors are to be cleaned, since cleaning is possible with this additional device to carry out the extracted dirty liquid before it enters the dirty liquid compartment.
  • Sieves with different mesh sizes can of course be used, for example mesh sizes of 31 iz, 63 fax or even 80 jpm have proven to be advantageous.
  • the sieve bag is particularly preferably made of polyester. This material is rot-proof, so that the sieve bag can be used over a long period of time.
  • the basket-shaped sieve bag is oriented in the direction of gravity downward in the dirty liquid compartment with respect to the end of the intake manifold. Since there is a negative pressure in the dirty liquid compartment in the operating state, the dirty liquid reaches the sieve bag via the suction nozzle, the suction of the majority of solid particles remaining in the sieve bag, which has to be cleaned accordingly from time to time.
  • the invention advantageously provides that a solenoid valve is arranged at the fresh liquid compartment outlet.
  • a solenoid valve can be provided that a tight seal between the fresh and dirty liquid compartment during operation condition and there are therefore no pressure fluctuations in the fresh liquid compartment, an undisturbed dosing of the liquor is achieved, since such a solenoid valve ensures perfect liquid passage even with slight contamination of the liquid, which can occur due to the return of the dirty liquid.
  • FIG. 1 is a perspective view of a mobile floor cleaning machine according to the invention.
  • Fig. 2 also partially in perspective a liquid container of the floor cleaning machine with fresh and dirty liquid compartment and in
  • FIG. 3 analogously to FIG. 2 a second embodiment of the floor cleaning machine.
  • the mobile floor cleaning machine shown in FIG. 1 has a carriage, generally designated 1, with castors 2 and a handlebar 3 with an operating device (not shown).
  • a large part of the interior of the carriage 1 is occupied by a liquid tank, generally designated 4, which can be closed with a cover 5.
  • the liquid tank 4 consists of a fresh water compartment 6 and a dirty water compartment 7, the two compartments being separated from one another by a fixed partition 8.
  • a cleaning rotor 9 On the underside of the carriage 1, a cleaning rotor 9 is shown, which can be driven by an invisible drive.
  • a suction bar 11 is arranged on the side of the driving rollers 2 facing away from the cleaning rotor 9.
  • a suction hose 12 with a connector 13 is connected to the suction bar 11 and opens into the dirty water compartment 7 of the liquid tank 4 via an intake connector 14.
  • the design of the liquid tank 4 is essential for the invention.
  • a connection which is designed as an opening 15 and which is in the operating state of the machine , in which the cover 5 closes the liquid tank 4 in a pressure-tight manner and in which there is an underpressure of up to 165 mbar with respect to the ambient pressure and the pressure in the fresh water compartment 6 in the dirty water compartment 7 for suctioning the dirty water, with a slide 16 or one at the Slider arranged ball 17 is closed pressure-tight.
  • the slider 16 is guided in guide rails (not shown) on the intermediate wall 8 and is designed as an elastic ball 17 at the closure end.
  • this elastic ball 17 seals against the opening edge of the opening 15 from the side of the fresh liquid compartment 6 and is sucked into this opening in a sealing manner by the negative pressure in the dirty water compartment 7.
  • the operating end 18 of the slide 16 is in the open state beyond the upper edge of the intermediate wall 8 forming a support for the lid 5, such that the lid 5 can be reclosed and the machine can only be started up when the slide 16 is as far from the intermediate wall 8 withdrawn (version according to FIG. 2) or pushed so far into the tank (version according to FIG. 3) that the ball 17 seals the opening 15 in a sealing manner.
  • the intake port 14 in the dirty liquid compartment is provided with a removable (e.g. bayonet lock) screen bag 19, preferably made of polyester.
  • this basket-shaped, preferably conical sieve bag 19 is arranged in the dirty water compartment 7 oriented downward in the direction of gravity relative to the end of the intake manifold.
  • the sieve bag 19 can additionally be arranged in a basket-shaped holder.
  • the liquid tank 4 also has a fresh water filter 20 in a known manner in the fresh water compartment 6 at the outlet and in Dirty water compartment 7 has a float 21 and a filter 22 with a connection to a turbine.
  • a solenoid valve is arranged at the fresh water compartment outlet, although this is not shown in the drawing.
  • the fresh water compartment 6 When the machine is started up for the first time, the fresh water compartment 6 is initially completely filled with a clean cleaning liquor, while the dirty water compartment 7 is completely empty.
  • the opening 15 is closed in a pressure-tight manner by the ball 17 of the respective slide 16 and the two compartments 6 and 7 are also pressure-tightly closed at the top by the closed cover 5.
  • a vacuum of about 165 mbar is set in the dirty water compartment 7 by means of a pump (not shown), as a result of which dirty liquid is sucked in from the cleaned floor surface via the suction bar 11 via the suction nozzle 14 is, whereby through the sieve bag 19 solid particles do not enter the actual dirty water compartment 7 from the outset.
  • the dirty liquid then collects continuously in the dirty water compartment 7, and due to the long residence time, almost complete sedimentation takes place, i.e. H. Solid particles that have still passed through the sieve bag 19 settle on the bottom surface of the compartment 7.
  • the operation of the cleaning machine is interrupted. Then the Lid 5 is opened, as a result of which there is a sudden pressure equalization in the dirty water compartment 7, ie the negative pressure is reduced accordingly.
  • the slide 16 is then accessible so that by opening, ie moving, the same ball 17 is removed from the opening 15 and the opening 15 is released and dirty liquid can enter the fresh water compartment 6 without large solid particles.
  • the slide 16 is displaced towards the fresh liquid compartment for this purpose and in the embodiment according to FIG. 3 the slide 16 is pulled upwards, so that the opening 15 is freed from the elastic ball 17 closing it.
  • the opening 15 is closed again by moving the slide 16 in the opposite direction and the cover 5 is also closed accordingly, so that the two compartments 6 and 7 are in turn separated from one another in a pressure-tight manner.
  • the cleaning process can then start again.
  • the invention is not limited to the exemplary embodiment shown. Further refinements of the invention are possible without leaving the basic idea.
  • the pressure-tight connection in the operating state between the dirty liquid compartment 7 and the fresh liquid compartment 6 can also take place outside the liquid tank 4, for example via a tap between the two tank emptying hoses (indicated in FIG. 1) and the like.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sustainable Development (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

Automate mobile pour le nettoyage du sol, à compartiments intégrés, respectivement, pour le liquide propre et pour le liquide de lavage, comprenant un rotor de nettoyage alimenté par le compartiment contenant le liquide propre, et au moins une buse d'aspiration, à refoulement dans le compartiment de liquide encrassé, lesdits compartiments étant séparés l'un de l'autre par une paroi intermédiaire, le compartiment de liquide encrassé étant, lors du fonctionnement du dispositif, en dépression par rapport à la pression extérieure. L'invention a pour but de perfectionner le dispositif de telle façon qu'il présente un plus grand rayon d'action, tout en étant d'un fonctionnement fiable, sans risque d'encrassement, et d'une grande facilité d'entretien. Ce but est atteint grâce au fait que les compartiments de liquide encrassé et de liquide propre (7, 6) sont munis d'un raccord (15) s'ouvrant et se fermant hermétiquement lors du fonctionnement et permettant, lorsqu'il est ouvert, une circulation du liquide du compartiment de liquide encrassé dans le compartiment de liquide propre (7, 6).
EP93919154A 1992-09-02 1993-08-24 Automate mobile pour le nettoyage du sol Withdrawn EP0658089A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19924229204 DE4229204C2 (de) 1992-09-02 1992-09-02 Fahrbarer Bodenreinigungsautomat
DE4229204 1992-09-02
PCT/EP1993/002271 WO1994005196A1 (fr) 1992-09-02 1993-08-24 Automate mobile pour le nettoyage du sol

Publications (1)

Publication Number Publication Date
EP0658089A1 true EP0658089A1 (fr) 1995-06-21

Family

ID=6467001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93919154A Withdrawn EP0658089A1 (fr) 1992-09-02 1993-08-24 Automate mobile pour le nettoyage du sol

Country Status (4)

Country Link
EP (1) EP0658089A1 (fr)
DE (1) DE4229204C2 (fr)
FI (1) FI950952A0 (fr)
WO (1) WO1994005196A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309461U1 (de) * 1993-06-25 1993-08-19 Henkel-Ecolab GmbH & Co oHG, 40589 Düsseldorf Fahrbarer Bodenreinigungsautomat
GB9321288D0 (en) * 1993-10-15 1993-12-08 Numatic Int Ltd Improvements in and relating to vacuum cleaning apparatus
DE4429617C1 (de) * 1994-08-20 1995-11-30 Henkel Ecolab Gmbh & Co Ohg Fahrbarer Bodenreinigungsautomat
GB9516689D0 (en) * 1995-08-15 1995-10-18 Vax Ltd Liquid pick-upappliances for use insurface cleaning or drying
CN106137045B (zh) * 2015-08-21 2018-11-06 深圳市智意科技有限公司 家用扫地机的清洁箱结构

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2248699A (en) * 1937-04-06 1941-07-08 Finnell System Inc Floor scrubbing machine
US3206787A (en) * 1963-01-28 1965-09-21 Tennant Co G H Scrubbing device
FR1583653A (fr) * 1965-11-01 1969-11-28
DE2754165A1 (de) * 1977-12-06 1979-06-07 Andrae P Fa Anschlussaufsatz fuer wassertanks von reinigungsmaschinen
US4377017A (en) * 1978-06-19 1983-03-22 Tennant Company Scrubbing machine with water regeneration
US4295244A (en) * 1978-06-19 1981-10-20 Tennant Company Scrubbing machine with water regeneration
US4348783A (en) * 1980-11-10 1982-09-14 Tennant Company Scrubbing machine with selective recycle
US4464810A (en) * 1982-07-23 1984-08-14 The Scott & Fetzer Company Scrubbing machine with liquid recirculation
US4466155A (en) * 1982-11-22 1984-08-21 Grave Dale L Recycling cleaning apparatus
DE3540783A1 (de) * 1985-11-16 1987-05-21 Hako Gmbh & Co Fahrbare nassreinigungsmaschine
DE3708087A1 (de) * 1987-03-13 1988-09-22 Henkel Kgaa Fahrbarer bodenreinigungsautomat
DE3708086A1 (de) * 1987-03-13 1988-09-22 Henkel Kgaa Fahrbarer bodenreinigungsautomat

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9405196A1 *

Also Published As

Publication number Publication date
DE4229204A1 (de) 1994-03-03
DE4229204C2 (de) 1995-10-05
FI950952A (fi) 1995-03-01
WO1994005196A1 (fr) 1994-03-17
FI950952A0 (fi) 1995-03-01

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