EP2011427A1 - Dispositif de nettoyage des planchers pour des appareils de nettoyage et séchage des planchers - Google Patents

Dispositif de nettoyage des planchers pour des appareils de nettoyage et séchage des planchers Download PDF

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Publication number
EP2011427A1
EP2011427A1 EP07425406A EP07425406A EP2011427A1 EP 2011427 A1 EP2011427 A1 EP 2011427A1 EP 07425406 A EP07425406 A EP 07425406A EP 07425406 A EP07425406 A EP 07425406A EP 2011427 A1 EP2011427 A1 EP 2011427A1
Authority
EP
European Patent Office
Prior art keywords
floor
wiper according
floor wiper
supporting body
engagement
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Withdrawn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
EP07425406A
Other languages
German (de)
English (en)
Inventor
Allessandro Crivellaro
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.)
Comac SpA
Original Assignee
Comac SpA
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 Comac SpA filed Critical Comac SpA
Priority to EP07425406A priority Critical patent/EP2011427A1/fr
Publication of EP2011427A1 publication Critical patent/EP2011427A1/fr
Withdrawn legal-status Critical Current

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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
    • A47L11/40—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
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/11—Squeegees

Definitions

  • the present invention relates to a floor wiper for floor cleansing and drying machines.
  • floor cleansing and drying machines are generally equipped with a floor wiper, which is arranged to the rear, along the direction of travel of the machine during use, with respect to the rotating brushes and the nozzles for dispensing the washing liquid.
  • the floor wiper is designed to engage by contact the surface of the floor, so as to retain the washing liquid and the dirt that has been removed, thus allowing their collection by a suction port which dries the floor.
  • the floor wiper is provided with a lip-shaped brush which is usually obtained by means of a strip of elastically yielding material, such as rubber or others, which is arranged substantially transversely to the travel direction of the machine and is supported by a supporting structure which is associated with the chassis of the machine.
  • a lip-shaped brush which is usually obtained by means of a strip of elastically yielding material, such as rubber or others, which is arranged substantially transversely to the travel direction of the machine and is supported by a supporting structure which is associated with the chassis of the machine.
  • Such supporting structure generally can be moved with respect to the chassis of the machine so as to allow the floor wiper to pass from a raised position, in which its brush is spaced upwardly from the floor, to a lowered position, in which the brush is pressed elastically, with its lower edge, against the floor to be cleaned, so as to be able to slide thereon during use of the machine, and vice versa.
  • the floor wiper is connected detachably to the supporting structure by fixing means, which are constituted by threaded elements which can be clamped by means of wing nuts or the like to allow stable coupling between the floor wiper and the supporting structure.
  • the aim of the present invention is to provide a solution to the drawbacks of the background art, by providing a floor wiper for floor cleansing and drying machines which can be fitted and removed with respect to the chassis of the machine with a small number of intuitive operations to clean it and maintain it without difficulties.
  • An object of the present invention is to provide a floor wiper for floor cleansing and drying machines which can be connected securely to the machine chassis despite being easily removable from such machine.
  • Another object of the present invention is to provide a floor wiper for floor cleansing and drying machines which is constructively simple to provide and has a low cost.
  • the floor wiper according to the invention comprises a brush 2 which is supported by a supporting structure 3, which is connected to the chassis of a floor cleansing and drying machine, not shown for the sake of simplicity, and is designed to make sliding contact by way of its lower edge 2a with the floor to be cleaned during use of the floor cleansing and drying machine.
  • the brush 2 is associated with a supporting body 4, which can be coupled detachably to the supporting structure 3 by snap-acting quick coupling means.
  • such snap-acting quick coupling means comprise at least one male element, which is associated with the supporting body 4 and can engage in a female seat 5 which is provided in the supporting structure 3, and removable locking means, which are designed to engage the male element to lock it in the female seat 5 when the male element is inserted in the female seat 5.
  • the male element is constituted conveniently by at least two mating pins 6, which are fixed to the supporting body 4 and can be inserted axially in corresponding female seats 5 provided in the supporting structure 3.
  • such removable locking means comprise, for each mating pin 6, an engagement element 7, which is supported by the supporting structure 3 and has a locking head 7a which can engage a retention region 6a formed on the corresponding mating pin 6.
  • Each engagement element 7 can move on command from an engagement position, in which it is engaged, with its locking head 7a, with the retention region 6a of the corresponding mating pin 6, so as to lock it in the corresponding female seat 5, to a disengagement position, in which it disengages from the retention region 6a of the corresponding mating pin 6 to allow the axial extraction of the latter from the corresponding female seat 5, and vice versa.
  • each engagement element 7 is advantageously pivoted, with an intermediate portion, to the supporting structure 3 about an oscillation axis which is substantially parallel to the insertion direction of the corresponding mating pin 6 in the corresponding female seat 5.
  • each engagement element 7 can move from the engagement position to the disengagement position in contrast with the action of elastic return means, which are constituted for example by a helical spring 8 which is interposed between the engagement element 7 and the supporting structure 3.
  • the helical spring 8 in practice pushes the engagement head 7a of the engagement element 7 against the lateral surface of the corresponding mating pin 6 when the latter is inserted in the corresponding female seat 5.
  • each engagement element 7 is provided, on the opposite side with respect to the locking head 7a, with an actuation portion 7b, on which it is possible to act manually to disengage the engagement element 7 from the corresponding mating pin 6, causing the passage of the engagement element 7 from the engagement position to the disengagement position.
  • each mating pin 6 comprises an axial shoulder 9, which is directed away from the end of the mating pin 6 which can be inserted in the corresponding female seat 5 and can be engaged by abutment by the locking head 7a of the corresponding engagement element 7, in order to prevent axial extraction of the mating pin 6 from the corresponding female seat 5.
  • the axial shoulder 9 is formed, at least partially, by a circumferential groove 10 provided on the outer lateral surface of each mating pin 6.
  • the locking head 7a of each engagement element 7 is conveniently shaped complementarily with respect to the corresponding circumferential groove 10.
  • each mating pin 6 further comprises a toothed protrusion 11, which protrudes from the lateral surface of the corresponding mating pin 6 and conveniently has an annular shape arranged around the axis of such mating pin.
  • the toothed protrusion 11 is adapted with a front side 11a which is directed toward the end of the mating pin 6 which can be inserted in the corresponding female seat 5, which is shaped like an inclined plane with respect to the axis of the mating pin, and with an opposite abutment side 11b, which is substantially perpendicular to the axis of the mating pin 6.
  • the front side 11a of the toothed protrusion 11 is adapted to engage by sliding with the locking head 7a of the corresponding engagement element 7 during the insertion of the mating pin 6 in the corresponding female seat 5, while the opposite abutment side 11b defines substantially at least one portion of the axial shoulder 9.
  • the front side 11 a allows the toothed protrusion 11 to move beyond the locking head 7a of the engagement element 7, causing a rotation of the engagement element 7 about its own oscillation axis in contrast with the action of the helical spring 8, which immediately thereafter causes the engagement of the locking head with the opposite abutment side 11b of the toothed protrusion 11, thus achieving the automatic snap locking of the mating pin 6 in the corresponding female seat 5.
  • the supporting structure 3 comprises a bar 12 which preferably has a flattened shape and is designed to be arranged substantially transversely to the advancement direction of the floor cleansing and drying machine.
  • the female seats 5 are provided through the thickness of respective plate-like portions 13, which are associated with the bar 12, and their access opening is located at a face of the plate-like portions 13 which is directed toward the floor and therefore downwardly, so that the mating pins 6 can be inserted in the female seats 5 with an upward axial movement.
  • the engagement elements 7 are advantageously pivoted on the opposite face of the plate-like portions 13.
  • the bar 12 is conveniently provided with an abutment portion 14, which defines an engagement region for movement elements which are associated with the floor cleansing and drying machine and can be actuated to lift or lower the supporting structure 3 with respect to the floor, so as to be able to move the brush 2 into contact with the floor or disengage it from said floor.
  • the abutment portion 14 is located advantageously in a central position of the longitudinal extension of the bar 12 and is constituted for example by a fork 15, which is fixed to the bar 12 and supports a roller 16 between its arms.
  • the roller 16 is designed to engage the movement elements, which comprise for example a lifting lever 17, which passes through the fork 15 and can be actuated on command so as to rotate about an axis which is substantially parallel to the floor in order to engage the roller 16 and lift the supporting structure 3.
  • the movement elements comprise for example a lifting lever 17, which passes through the fork 15 and can be actuated on command so as to rotate about an axis which is substantially parallel to the floor in order to engage the roller 16 and lift the supporting structure 3.
  • the female seats 5 are arranged symmetrically, on mutually opposite sides, with respect to the abutment portion.
  • the supporting body 4 preferably has a shape which is elongated substantially transversely to the advancement direction of the floor cleansing and drying machine during its use and conveniently lies along a circular arc whose concavity is directed along the advancement direction of the floor cleansing and drying machine in order to allow effective collection of the washing liquid by the brush 2.
  • the brush 2 is provided by means of a strip 18 made of elastically yielding material, which is connected detachably to the supporting body 4.
  • a plurality of teeth 19 are provided on the supporting body 4 and are mutually spaced along the longitudinal extension of the supporting body; such teeth can engage detachably within corresponding slots 20 provided in the strip 18.
  • the locking of the strip 18 to the supporting body 4 is achieved by means of at least one pair of band-like fixing elements 21a and 21b, which are designed to face the strip 18 and can engage the supporting body 4 at one of their ends.
  • the band-like fixing elements 21a and 21b can be mutually connected by means of a closure device 22, which is adapted to pull the band-like fixing elements 21a and 21b toward each other, so as to allow to lock the strip 18 between the band-like fixing elements 21a and 21b and an abutment surface 4a defined by the supporting body 4.
  • the closure device 22 is constituted by a lever 24, which is pivoted to a base 25 which is fixed to one of the band-like fixing elements, which in the example shown in the figures is the one designated by the reference numeral 21b, and by a tension element 26, which is articulated, at one end, to the other band-like fixing element, i.e., the one designated by the reference numeral 21a in the figures, and engages rotatably on said pivot of the lever 24 so that by way of the oscillation of the lever 24 it is possible to apply a clamping action to the band-like fixing elements 21a, 21b.
  • the strip 18 conveniently has, proximate to its longitudinal ends, two openings 27 which can be crossed by engagement tabs 28 provided at the ends of the band-like fixing elements 21a, 21b which lie opposite the ones which are connected by the closure device 22 and can engage detachably the supporting body 4.
  • the band-like fixing elements 21a, 21b further have slots 23 for engagement with the teeth 19.
  • at least the teeth located proximate to the longitudinal ends of the supporting body 4 preferably have a protrusion 19a which is directed away from the closure device 22 and defines an undercut region 29 with respect to a movement in the opposite direction with respect to the supporting body 4, said region being engageable by the edges of the corresponding slot 23, so as to provide a stable coupling between the band-like fixing elements 21a and 21b and the supporting body 4.
  • the supporting body 4 is further provided with an intake port 30, which can be connected through a duct to a suction device, of any known type, which is associated with the floor cleansing and drying machine.
  • the intake port 30 is connected to a suction chamber 31, which is open toward the floor and is defined between the strip 18 and a longitudinal delimiting wall 32 defined by the supporting body 4.
  • the strip 18 is mated with the supporting body 4.
  • the strip 18 is first rested against the abutment surface 4a of the supporting body 4, engaging the teeth 19 in the slots 20 of the strip 18, and is then fixed to the supporting body 4, engaging the engagement tabs 28 of the band-like fixing elements 21a, 2 1 b with the supporting body 4 and moving mutually closer the ends of the band-like fixing elements 21a, 21 b which lie opposite the engagement tabs 28 by acting on the lever 24 of the closure device 22, so as to lock the strip 18 against the abutment surface 4a of the supporting body 4.
  • the supporting body 4 with the strip 18 thus coupled can be engaged with the supporting structure 3 by simply inserting the mating pins 6 in the respective female seats 5 and pushing the mating pins 6 enough to allow the toothed protrusion 11 to move beyond the locking head 7a of the engagement elements 7, which by way of the action of their return spring 8 can then move automatically to a position for engagement with the circumferential groove 10 of the mating pins 6, thus locking the mating pins 6 in the female seats 5.
  • the supporting structure 3 in order to facilitate the insertion of the mating pins 6 in the female seats 5, it is preferable to arrange the supporting structure 3 in a position which is raised from the floor by way of the actuation of the lifting lever 17.
  • the lifting lever 17 can be actuated so as to lower the supporting structure 3 and thus move the edge 2a of the brush 2 into contact with the floor.
  • a floor wiper is provided which can be fitted to, or removed from, the floor cleansing and drying machine and disassembled into its components subject to replacement with operations which are extremely simple and very practical to perform.
  • the materials used, as well as the contingent shapes and dimensions may be any according to requirements.

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EP07425406A 2007-07-04 2007-07-04 Dispositif de nettoyage des planchers pour des appareils de nettoyage et séchage des planchers Withdrawn EP2011427A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07425406A EP2011427A1 (fr) 2007-07-04 2007-07-04 Dispositif de nettoyage des planchers pour des appareils de nettoyage et séchage des planchers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425406A EP2011427A1 (fr) 2007-07-04 2007-07-04 Dispositif de nettoyage des planchers pour des appareils de nettoyage et séchage des planchers

Publications (1)

Publication Number Publication Date
EP2011427A1 true EP2011427A1 (fr) 2009-01-07

Family

ID=38805759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07425406A Withdrawn EP2011427A1 (fr) 2007-07-04 2007-07-04 Dispositif de nettoyage des planchers pour des appareils de nettoyage et séchage des planchers

Country Status (1)

Country Link
EP (1) EP2011427A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2949253A1 (fr) * 2014-05-27 2015-12-02 Hako GmbH Pied ventouse pour une machine de nettoyage de sol
WO2016034251A1 (fr) * 2014-09-05 2016-03-10 Alfred Kärcher Gmbh & Co. Kg Dispositif de rampe d'aspiration pour une machine de nettoyage de sol, machine de nettoyage de sol et procédé pour le nettoyage de sols carrelés
CN106821158A (zh) * 2017-04-18 2017-06-13 上海洁驰清洁设备有限公司 一种用于洗地机的吸水扒装置
EP3424397A1 (fr) 2017-07-05 2019-01-09 Wetrok AG Dispositif de racloir pour une machine de nettoyage du sol
CN109288459A (zh) * 2017-07-24 2019-02-01 德国福维克控股公司 具有电机式驱动的振动板的清洁装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363152A (en) * 1981-02-19 1982-12-14 The Scott & Fetzer Company Squeegee assembly for a scrubbing machine
US5706549A (en) * 1996-06-25 1998-01-13 Advance Machine Company Rotary disc floor cleaning apparatus
JPH10179484A (ja) * 1996-12-20 1998-07-07 Fujitsu General Ltd 床面洗浄車のスクイージ取付装置
US6088873A (en) * 1997-10-20 2000-07-18 Breuer Electric Mfg. Co. Floor cleaning machine and method
WO2001078909A2 (fr) * 2000-04-17 2001-10-25 Tennant Company Ensemble de raclette presentant un mode de debrayage de protection
EP1595487A1 (fr) * 2004-05-11 2005-11-16 Comac S.p.A. Machine d'entretien du sol, notamment pour des applications industrielles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363152A (en) * 1981-02-19 1982-12-14 The Scott & Fetzer Company Squeegee assembly for a scrubbing machine
US5706549A (en) * 1996-06-25 1998-01-13 Advance Machine Company Rotary disc floor cleaning apparatus
JPH10179484A (ja) * 1996-12-20 1998-07-07 Fujitsu General Ltd 床面洗浄車のスクイージ取付装置
US6088873A (en) * 1997-10-20 2000-07-18 Breuer Electric Mfg. Co. Floor cleaning machine and method
WO2001078909A2 (fr) * 2000-04-17 2001-10-25 Tennant Company Ensemble de raclette presentant un mode de debrayage de protection
EP1595487A1 (fr) * 2004-05-11 2005-11-16 Comac S.p.A. Machine d'entretien du sol, notamment pour des applications industrielles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2949253A1 (fr) * 2014-05-27 2015-12-02 Hako GmbH Pied ventouse pour une machine de nettoyage de sol
WO2016034251A1 (fr) * 2014-09-05 2016-03-10 Alfred Kärcher Gmbh & Co. Kg Dispositif de rampe d'aspiration pour une machine de nettoyage de sol, machine de nettoyage de sol et procédé pour le nettoyage de sols carrelés
CN106821158A (zh) * 2017-04-18 2017-06-13 上海洁驰清洁设备有限公司 一种用于洗地机的吸水扒装置
EP3424397A1 (fr) 2017-07-05 2019-01-09 Wetrok AG Dispositif de racloir pour une machine de nettoyage du sol
CN109199257A (zh) * 2017-07-05 2019-01-15 威托克有限公司 用于地板清洁机的刮擦装置
CN109288459A (zh) * 2017-07-24 2019-02-01 德国福维克控股公司 具有电机式驱动的振动板的清洁装置
CN109288459B (zh) * 2017-07-24 2021-07-27 德国福维克控股公司 具有电机式驱动的振动板的清洁装置

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