EP2954817A1 - Machine de nettoyage du sol - Google Patents

Machine de nettoyage du sol Download PDF

Info

Publication number
EP2954817A1
EP2954817A1 EP14171957.5A EP14171957A EP2954817A1 EP 2954817 A1 EP2954817 A1 EP 2954817A1 EP 14171957 A EP14171957 A EP 14171957A EP 2954817 A1 EP2954817 A1 EP 2954817A1
Authority
EP
European Patent Office
Prior art keywords
adjusting element
cleaning head
lowered
squeegee
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.)
Granted
Application number
EP14171957.5A
Other languages
German (de)
English (en)
Other versions
EP2954817B1 (fr
Inventor
Ricardo Ruiz-Porath
Carsten Protz
Anatoliy Schmidt
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.)
Hako GmbH
Original Assignee
Hako GmbH
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 Hako GmbH filed Critical Hako GmbH
Priority to EP14171957.5A priority Critical patent/EP2954817B1/fr
Priority to US14/727,890 priority patent/US10064531B2/en
Priority to CN201510317570.8A priority patent/CN105310605B/zh
Publication of EP2954817A1 publication Critical patent/EP2954817A1/fr
Application granted granted Critical
Publication of EP2954817B1 publication Critical patent/EP2954817B1/fr
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
    • A47L11/305—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools the tools being disc brushes
    • 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
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A47L11/4055—Movement of the tools or the like perpendicular to the cleaning surface for lifting the tools to a non-working position
    • 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
    • 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
    • A47L11/4061—Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
    • 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
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • the present invention relates to a floor cleaning machine with a machine frame, mounted on a machine frame chassis for moving the floor cleaning machine on a floor surface to be cleaned, with a cleaning head which is so adjustably supported on the machine frame, that he in an engaged position in which the cleaning head with the Ground surface engages, lowered and can be raised therefrom, and with a squeegee that is so adjustably supported on the machine frame that it can be lowered into a contact position in which the squeegee rests on the bottom surface and raised therefrom.
  • Such floor cleaning machines are used to clean large floor areas, for example in public buildings or supermarkets.
  • the machines are operated in such a way that when driving on such a floor surface to be cleaned first with the help of the cleaning head and provided thereon, preferably driven brushes with applied by the cleaning head liquid on the floor surface existing dirt is released. With the help of the squeegee then loaded with dirt liquid is sucked off again.
  • both the cleaning head and the squeegee are height-adjustable mounted on the machine frame of the floor cleaning machine to allow both units are not necessarily in contact with the bottom surface.
  • the following operating modes or combinations of settings for the position of cleaning head and suction foot are basically required.
  • a second operating mode is necessary for the pure suction operation, in which only the squeegee is lowered to the bottom surface in a contact position to still suck liquid located on the bottom surface, but the cleaning head is not in contact with the bottom surface.
  • both the cleaning head and the squeegee are in an engagement position with the bottom surface so that, on the one hand, the bottom surface is cleaned by means of the cleaning head and, on the other hand, dirt water is sucked therefrom by means of the squeegee.
  • lifting devices must be provided for both the squeegee and the cleaning head, and these lifting devices normally require separate drives, which involves considerable expense and space requirements.
  • a floor cleaning machine with a machine frame, with a mounted on the machine frame chassis for moving the floor cleaning machine on a floor surface to be cleaned, with a cleaning head which is mounted on the machine frame so height adjustable that he in an engaged position in which the cleaning head with the bottom surface engages, can be lowered and raised therefrom, with a squeegee, which is designed to suck liquid from the bottom surface and the machine frame is held in such a height adjustable, that it can be lowered into a contact position, in which the squeegee rests on the bottom surface and raised therefrom, with a movable adjusting element which is coupled to the cleaning head and the squeegee, and with a drive for the method of Adjusting element between a first, a second and a third position, wherein raised in the first position of the adjustment of the cleaning head from the engaged position and the squeegee are lifted from the contact position, wherein raised in the second position of the adjustment of the cleaning head from the engaged position and the
  • the floor cleaning machine can drive over the bottom surface and thereby absorb liquid thereof by means of the squeegee, while the cleaning head is not in contact with the bottom surface.
  • the structure according to the invention makes it possible for the adjusting element to assume a third position, in which both are then lowered due to the coupling with the suction foot and the cleaning head and occupy the contact position or the engaged position.
  • this third position on the one hand with the help of the cleaning head, the bottom surface is cleaned and on the other hand simultaneously sucked with the help of the squeegee contaminated liquid.
  • drives for moving the adjusting hydraulic and pneumatic actuators such as hydraulic or pneumatic cylinders in question. But it can also be used other mechanical drives, which have about electric motors and associated threaded spindles.
  • the drives that can be used are also not limited to those that produce linear motion. Much more can also be used those whose output element performs a circular motion, so that the adjusting element then also performs a movement along at least a portion of a circular path.
  • the adjusting element can be moved to a fourth position, wherein in this fourth position of the adjustment of the cleaning head lowered into the engaged position with the bottom surface and the squeegee is lifted from the contact position.
  • This fourth position may be desirable if a pre-cleaning of the soil is to be carried out in which only liquid applied to the bottom surface and the bottom surface is cleaned by possibly driven brushes of the cleaning head, but the water should initially remain on the bottom surface.
  • the squeegee and the adjusting element can be coupled to one another in such a way that an elastic element is arranged in the connection between the squeegee and the adjusting element.
  • an elastic element In the first and possibly fourth position of the adjustment in which the squeegee is raised and suspended above the floor surface, it often happens that a user, for example by means of his body weight, exerts a load on the squeegee in the direction of the floor surface. This load would, if no elastic element between adjustment and suction would be present, cause that possibly the squeegee tearing off the adjustment.
  • an elastic member when an elastic member is provided, it absorbs the load under elastic deformation.
  • the adjusting element performs a movement along at least part of a circular path, along which the respective positions can be taken.
  • the adjustment performs a rectilinear motion, since then the drive can be realized for example by an electromechanical linear drive, as is known from the prior art.
  • the suction cup has a pivotally mounted on the machine frame holder, so that the squeegee can be raised by pivoting the holder from the contact position with the bottom surface and lowered into it, wherein the holder further comprises a lever arm, the free end of the Adjustment element is connected.
  • the suction cup is then raised or lowered by the adjusting element being connected to the free end of the lever arm. It is particularly preferred if this connection between the free end of the lever arm and the adjusting element has a spring element which receives by elastic deformation loads, which arise when the squeegee is raised and removed from the bottom surface.
  • the squeegee has a pivotally mounted on the machine frame holder so that the squeegee can be raised by pivoting the holder from the contact position and lowered into it.
  • a lever arm is provided, and further a pivotable coupling member is provided, which is connected to the free end of the lever arm.
  • the coupling element in turn has a first guide track, which engages with the adjusting element, so that it can be moved therein. By moving the adjusting element in the first guide track, a pivoting position of the coupling element can be changed, which in turn results in that the holder as a result of the pivoting movement of the coupling element between the lowered Contact position and a raised position is pivoted.
  • Such a structure provides a simple way to implement the rectilinear movement of the adjustment in a pivoting movement of the holder. It is further preferred if between the pivotable coupling element and the lever arm of the holder in turn a spring or other elastic connecting element are provided, which can accommodate in the case of the raised suction on it exerted unforeseen loads.
  • the cleaning head has an adjusting plate, in which a second guide track is formed, with which the adjusting element engages and is movable, so that a position of the adjusting plate is changed relative to the machine frame during the movement of the adjusting element along the second guide track.
  • the second guide track in the actuator plate has such a course that the linear rectilinear movement of the actuator leads to a vertical movement of the actuator plate perpendicular to the plane of the bottom surface.
  • the cleaning head is mounted on a holder which is pivotally mounted on the machine frame, wherein the setting plate is fastened to the holder so that the holder is pivoted during the movement of the adjusting element and into the engaged position in which the cleaning head engages with the bottom surface , lowered and raised from it.
  • the vertical movement of the cleaning head can be realized in a simple manner, without the need for a complicated guide. It is only necessary to provide the pivotable support arm.
  • the cleaning head can also be connected via a cable element with the adjusting element. It is on the one hand possible that the cleaning head is in turn mounted on a pivotable holder, for example on the machine frame. Alternatively, however, a linear guide of the cleaning head is conceivable.
  • the adjusting element When the adjusting element performs a rectilinear motion, it is preferred that it is attached to the free end of the piston rod of an electromechanical linear drive.
  • an electromechanical linear drive With such a linear drive, on the one hand, the desired positions can be approached reliably and, on the other hand, the required forces can also be applied in a simple manner.
  • the cleaning head comprises brushes for engagement with the bottom surface in the lowered position of the cleaning head, which brushes may be driven.
  • the squeegee has a suction region defined by a sealing strip and a slit strip intended to engage the bottom surface, the suction region being connected to a vacuum source provided in the floor cleaning machine.
  • the embodiment shown here is a ride-on machine.
  • the invention is not limited to ride-on machines, but may also be applied to floor cleaning machines that are configured such that a user guides them while walking.
  • the floor cleaning machine 1 has a cleaning head 13, which is provided with driven brushes 15 and is connected to a mounted in the floor cleaning machine 1 cleaning liquid container.
  • the cleaning head 13 is provided with a pivotally mounted on the machine frame 3 bracket 17 to which the cleaning brushes 15 are mounted.
  • the holder 17 is pivotable about a pivot axis 19.
  • an adjusting plate 21 attached, which extends from the bracket 17 vertically upwards.
  • a squeegee 23 is attached to the machine frame 3, wherein the squeegee 23 has a pivotally mounted about a pivot axis 25 holder 27.
  • the holder 27 On the holder 27 is the actual Saugfußan extract with a perpendicular to the bottom surface 7 extending sealing strip 28 and a slot extending parallel thereto 28 'provided, the slot bar 28' seen in the direction of travel is arranged in front of the sealing strip 28.
  • a suction region is formed, which is connected via a suction line 29 with a fan 31 designed as a vacuum source in the floor cleaning machine 1.
  • a lever arm 33 is fixedly mounted with a free end 35th
  • the piston rod 41 is linearly movable in a horizontal and parallel to the bottom surface 7 extending direction.
  • Such linear drives are well known in the art.
  • an adjusting element 43 is provided, wherein the adjusting element 43 is guided in a straight mounted on the machine frame 3 guide 44.
  • the adjusting element 43 in this embodiment performs a purely rectilinear motion.
  • the adjusting element 43 is coupled on the one hand via an elastic element in the form of a tension spring 45 with the free end 35 of the lever arm 33.
  • a guide track 47 is formed, and the adjusting element 43 engages with a pin provided therein in the guide track 47, wherein due to the course of the guide track 47, a rectilinear movement of the piston rod 41 and thus of the adjusting element 43 to an up and Abmony the actuator plate 21 and thus leads to a pivoting movement of the bracket 17.
  • the cleaning head 13 is raised or lowered by the rectilinear movement of the piston rod 41 or of the adjusting element 43, as will be explained in detail below.
  • the guideway 47 in the actuator plate 21 in this case has a first portion 47 'facing away from the piston rod 41 drive end 48 of the linear actuator 39, and an inclined to the first portion 47' extending second portion 47 '', which on the begins the drive end 48 pioneering end of the first portion 47 '.
  • the adjusting element 43 can be moved along a straight path and thereby assume the positions described below.
  • Fig. 2 In the first position, in Fig. 2 is shown, the piston rod 41 of the linear actuator 39 is in the retracted position, and the adjusting element 43 is positioned at the end of the first portion 47 'of the guide track 47 in the adjusting plate 21 from the second portion 47''.
  • the holder 17 is pivoted about the pivot axis 19 upwards, so that the brush 15 of the cleaning head spaced from the bottom surface 7 and the cleaning head 13 is not in engagement with the bottom surface 7.
  • the lever arm 33 is also pivoted by the connection between the free end 35 and the adjusting element 43 via the tension spring 45 in the direction of the linear drive 39, so that the holder 27 is pivoted upwards and the squeegee 23 is also spaced from the bottom surface.
  • the adjusting element 43 when the adjusting element 43 is in the third position, so actually the cleaning head 13 and the squeegee 23 are lowered to hook the squeegee 23 by means of a holder 49 to a fixed to the machine frame 3 component 51, so the squeegee 23 is in the raised position away from the bottom surface 7.
  • the floor cleaning machine 1 can drive with the cleaning head 13 in the engaged position on the bottom surface 7, without the squeegee 23 has contact with it.
  • the Fig. 6 shows a modification of the embodiment described above, in which the guide rail 47 in the adjusting plate 21 still another, pointing towards the drive end 48 of the linear actuator 39 section having a greater distance in the vertical direction to the holder 17, so that when the adjusting element 43 is moved by complete retraction of the piston rod 41 of the linear drive 39 in this section, on the one hand, the cleaning head 13 is lowered into the engaged position with the bottom surface 7 and on the other hand the lever arm 33 is pivoted so that the holder 27 is pivoted upwards and the squeegee 23 is not in the contact position with the bottom surface 7, but rather is raised.
  • the resulting in this construction additional travel is absorbed by the tension spring 45 by elongation.
  • a fourth position for the adjusting element 43 is realized, in which the cleaning head 13 is lowered into the engaged position and the squeegee 23 is lifted from the contact position. It is not necessary here to bring the squeegee 23 manually by means of a bracket by hanging in the raised position, as in the previously described embodiment with respect to Fig. 4 had been explained.
  • actuator plate 21 has a guide rail 47 with inclined to each other extending portions 47 ', 47' ', and by this course, the movement of the holder 17 is achieved while the adjusting element 43 relative to the machine frame 3 performs a rectilinear motion.
  • the guide 44 with a differently inclined sections having path and to support the drive end 48 of the linear drive 39 pivotally. Then, with a linear guideway in the adjusting plate 21, a pivoting movement of the holder 17 can also be achieved when the piston rod 41 and the adjusting element 43 are moved. In this case, however, the linear drive is then pivoted relative to the machine frame 3.
  • the cleaning head 13 is also connected to a retractable bracket 17, so that by pivoting the bracket 17, the cleaning head 13 can be lowered into the engaged position or raised therefrom.
  • the squeegee 23 is mounted vertically adjustable via a holder 27 pivotally mounted on the machine frame 3 about a pivot axis 25, the holder 27 having a lever arm 33 with a free end 35.
  • a linear drive 39 is provided on the piston rod 41 at the free end thereof, the adjusting element 43 is mounted.
  • the adjusting element 43 also performs a straight-line movement here.
  • a cable element 53 is attached, which runs over a guide roller 55 to the bracket 17.
  • a coupling member 59 is supported, which has two arms 61, 63 extending away from the pivot axis 57.
  • a guide track 67 is again formed, which has a rectilinear upper edge 69 and a lower edge 71, wherein the distance of the lower edge 71 from the upper edge 69 varies and a maximum in a central portion is as the distance to the ends of the guideway 67 decreases.
  • the adjusting element 43 is moved along the guideway 67 during the rectilinear movement of the piston rod 41, the lower edge 71 of the guideway 67 always abutting the adjusting element 43 due to the torque exerted by the suction foot 23 attached to the holder 27.
  • the pivoting position of the coupling element 59 and thus also the pivoting position of the lever arm 33 changes.
  • the adjustment 43 performs a linear, linear movement and both the cleaning head 13 and the squeegee 23 are pivotally hinged to the machine frame 3.
  • the adjusting element performs a circular movement to be moved back and forth between the individual positions.
  • the cleaning head and the squeegee are mounted geradling displaceable on the machine frame.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Screen Printers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP14171957.5A 2014-06-11 2014-06-11 Machine de nettoyage du sol Active EP2954817B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14171957.5A EP2954817B1 (fr) 2014-06-11 2014-06-11 Machine de nettoyage du sol
US14/727,890 US10064531B2 (en) 2014-06-11 2015-06-02 Floor cleaning machine
CN201510317570.8A CN105310605B (zh) 2014-06-11 2015-06-11 地面清扫机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14171957.5A EP2954817B1 (fr) 2014-06-11 2014-06-11 Machine de nettoyage du sol

Publications (2)

Publication Number Publication Date
EP2954817A1 true EP2954817A1 (fr) 2015-12-16
EP2954817B1 EP2954817B1 (fr) 2016-10-26

Family

ID=50942101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14171957.5A Active EP2954817B1 (fr) 2014-06-11 2014-06-11 Machine de nettoyage du sol

Country Status (3)

Country Link
US (1) US10064531B2 (fr)
EP (1) EP2954817B1 (fr)
CN (1) CN105310605B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3403562A3 (fr) * 2017-05-17 2018-12-05 Hako GmbH Dispositif de ventouse pour une machine de nettoyage de sol
DE102017111847A1 (de) 2017-05-30 2018-12-06 Hako Gmbh Bodenreinigungsmaschine mit Bürstenandruckverstellung
EP3412194A1 (fr) * 2017-05-17 2018-12-12 Hako GmbH Dispositif ventouse pour une machine de nettoyage du sol
EP3510910A1 (fr) * 2018-01-11 2019-07-17 Hako GmbH Ventouse à pression supplémentaire
EP3795054A1 (fr) * 2019-09-23 2021-03-24 Hako GmbH Machine de nettoyage du sol dotée d'un dispositif de balayage doté d'un bac à déchets doté d'un dispositif de détection de niveau de remplissage

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3517685B1 (fr) * 2018-01-26 2020-07-29 Hako GmbH Pièce rapportée pour une machine de nettoyage du sol
IT201900018527A1 (it) * 2019-10-11 2021-04-11 Adiatek S R L Macchina lava asciuga pavimenti.
CN216962307U (zh) * 2021-02-08 2022-07-15 云鲸智能科技（东莞）有限公司 一种清洁组件及清洁设备
KR102627727B1 (ko) * 2021-06-11 2024-01-19 김성호 시설원예용 레일방식 진공청소기

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Publication number Priority date Publication date Assignee Title
US2558864A (en) * 1942-03-25 1951-07-03 Raymond Torin Vacuum cleaner with selective nozzles and brushes
US4041567A (en) * 1975-04-10 1977-08-16 The Scott & Fetzer Company Combination sweeping-scrubbing apparatus
US4363152A (en) * 1981-02-19 1982-12-14 The Scott & Fetzer Company Squeegee assembly for a scrubbing machine
US4805258A (en) * 1987-09-22 1989-02-21 Tennant Trend Inc. Battery powered walk behind floor burnisher

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3403562A3 (fr) * 2017-05-17 2018-12-05 Hako GmbH Dispositif de ventouse pour une machine de nettoyage de sol
EP3412194A1 (fr) * 2017-05-17 2018-12-12 Hako GmbH Dispositif ventouse pour une machine de nettoyage du sol
DE102017111847A1 (de) 2017-05-30 2018-12-06 Hako Gmbh Bodenreinigungsmaschine mit Bürstenandruckverstellung
EP3417756A1 (fr) * 2017-05-30 2018-12-26 Hako GmbH Machine de nettoyage du sol dotée d'un réglage d'appui de brosse
EP3510910A1 (fr) * 2018-01-11 2019-07-17 Hako GmbH Ventouse à pression supplémentaire
EP3795054A1 (fr) * 2019-09-23 2021-03-24 Hako GmbH Machine de nettoyage du sol dotée d'un dispositif de balayage doté d'un bac à déchets doté d'un dispositif de détection de niveau de remplissage

Also Published As

Publication number Publication date
CN105310605B (zh) 2018-03-27
US20150359397A1 (en) 2015-12-17
CN105310605A (zh) 2016-02-10
EP2954817B1 (fr) 2016-10-26
US10064531B2 (en) 2018-09-04

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