EP0843527B1 - Suction hood for wet-cleaning machines for floors - Google Patents

Suction hood for wet-cleaning machines for floors Download PDF

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Publication number
EP0843527B1
EP0843527B1 EP96914899A EP96914899A EP0843527B1 EP 0843527 B1 EP0843527 B1 EP 0843527B1 EP 96914899 A EP96914899 A EP 96914899A EP 96914899 A EP96914899 A EP 96914899A EP 0843527 B1 EP0843527 B1 EP 0843527B1
Authority
EP
European Patent Office
Prior art keywords
suction hood
scrubbing roller
axle
floors
wet
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.)
Expired - Lifetime
Application number
EP96914899A
Other languages
German (de)
French (fr)
Other versions
EP0843527A1 (en
Inventor
Dieter Ochss
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.)
Nilfisk SpA
Original Assignee
Nilfisk Advance Italia 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 Nilfisk Advance Italia SpA filed Critical Nilfisk Advance Italia SpA
Publication of EP0843527A1 publication Critical patent/EP0843527A1/en
Application granted granted Critical
Publication of EP0843527B1 publication Critical patent/EP0843527B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L11/29—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
    • A47L11/4036—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
    • A47L11/4041—Roll shaped 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
    • 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

Definitions

  • the invention relates to the preamble of the claim 1 on a suction hood on floor wet cleaning machines for primarily commercial use; it is based on a device such as this in US-A-48 17 233.
  • the invention is therefore based on the object a construction or arrangement with respect to the suction hood to meet who is also a full drive up the Scrubbing roller on room edges and thus a perfect one Allows cleaning of such floor surfaces.
  • the suction hood can thus move out with the brush roller on edges to a maximum of perpendicular Level of the free scrubbing roller face "withdraw” and thus while maintaining the full Suction an edge-precise cleaning of the concerned Allow floor space.
  • Fig. 1 The purely schematically shown in Fig. 1 in elevation Floor cleaning machine 1 has in its front area a scrubbing roller 3 with this overlapping Suction hood 2; it becomes the entire cleaning process with water supply, scrubbing and dry vacuuming in in a known manner in the front area of the machine accomplished.
  • Combinatorially new here is according to Fig. 2 now that the motor-driven scrubbing roller 3 on an axis clamped only on one side (free arm axis) within those that cover these on both sides Suction hood 2 rotates, this suction hood 2 guided axially displaceable relative to the scrubbing roller 3 is.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

PCT No. PCT/EP96/01546 Sec. 371 Date Aug. 18, 1997 Sec. 102(e) Date Aug. 18, 1997 PCT Filed Apr. 11, 1996In a suction hood (2) for a wet floor cleaning machine (1) in which a motor-driven scrubbing roller (3) rotates, accompanied by application of water, on an axle (free-arm axle) which is clamped in on only one side within the suction hood (2) which overlaps this axle (7) at both ends, this suction hood (2) is guided so as to be displaceable axially relative to the scrubbing roller (3).

Description

Die Erfindung bezieht sich nach dem Oberbegriff des Patentanspruchs 1 auf eine Saughaube an Fußboden-Naßreinigungsmaschinen für vornehmlich gewerblichen Einsatz; sie geht dabei aus von einem Gerät, wie es beispielsweise in der US-A-48 17 233 beschrieben ist. The invention relates to the preamble of the claim 1 on a suction hood on floor wet cleaning machines for primarily commercial use; it is based on a device such as this in US-A-48 17 233.

Die Problematik bei allen bislang bekannten Maschinen dieser Gattung besteht bezüglich des Trockensaugens der zu bearbeitenden Bodenflächen vor allem darin, daß zur Erzielung der gewünschten Saugwirkung einerseits die Saughaube einen gewissen Überstand über die Enden der Scheuerwalze haben muß, was zum anderen wiederum den Nachteil mit sich bringt, daß man bei entsprechend großem Überstand zwangsläufig mit der Scheuerwalze nicht nahe genug an Ecken und Kanten heranfahren kann und dort somit Schmutzstreifen verbleiben.The problem with all previously known machines this genus exists with regard to dry vacuuming to be processed floor surfaces especially in that for Achieving the desired suction on the one hand Suction hood a certain protrusion over the ends of the Scrubbing roller must have, which in turn the Disadvantage that you can with accordingly large excess with the scrubbing roller inevitably can get close enough to corners and edges and there thus streaks of dirt remain.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Bauweise bzw. Anordnung bezüglich der Saughaube zu treffen, die auch ein volles Heranfahren der Scheuerwalze an Raumkanten und somit eine vollkommene Reinigung solcher Bodenflächen ermöglicht.The invention is therefore based on the object a construction or arrangement with respect to the suction hood to meet who is also a full drive up the Scrubbing roller on room edges and thus a perfect one Allows cleaning of such floor surfaces.

Gelöst wird diese Aufgabe dabei durch eine Saughaube gemäß dem Patentanspruch 1 in überzeugend einfacher Weise durch das an sich kombinatorische Zusammenwirken folgender zwei Baumerkmale:

  • a) Die Scheuerwalze ist auf einer lediglich einendig eingespannten Achse (Freiarmachse) gelagert und
  • b) die Saughaube ist gegenüber der Scheuerwalze axialverschieblich am Maschinengestell gelagert bzw. geführt.
    • This problem is solved by a suction hood according to claim 1 in a convincingly simple manner by the combinatorial interaction of the following two construction features:
  • a) The scrubbing roller is mounted on an axis clamped only at one end (free arm axis) and
  • b) the suction hood is axially displaceably mounted or guided on the machine frame relative to the scrubbing roller.

    • Die Saughaube kann sich somit also beim Herausfahren mit der Bürstenwalze an Kanten maximal bis zur lotrechten Ebene der freien Scheuerwalzen-Stirnfläche "zurückziehen" und damit unter Beibehaltung der vollen Saugwirkung ein kantengenaues Reinigen der betreffenden Bodenfläche ermöglichen. Spezielle bauliche Ausgestaltungsmerkmale dieser Erfindung sind noch in den Unteransprüchen aufgeführt und zudem anhand einer Zeichnungsskizze näher erläutert.The suction hood can thus move out with the brush roller on edges to a maximum of perpendicular Level of the free scrubbing roller face "withdraw" and thus while maintaining the full Suction an edge-precise cleaning of the concerned Allow floor space. Special structural design features this invention are still in the subclaims listed and also based on a drawing sketch explained in more detail.

    Weitere Ausgestaltungen und Weiterbildungen sind Gegenstand der abhängigen Patentansprüche.Further refinements and developments are Subject of the dependent claims.

    Es zeigen:

    Fig. 1
    eine Fußbodenreinigungsmaschine schematisch dargestellt in Seitenansicht und
    Fig. 2
    eine Ansicht auf die Maschine von unten.
    Show it:
    Fig. 1
    a floor cleaning machine shown schematically in side view
    Fig. 2
    a view of the machine from below.

    Die in Fig. 1 rein schematisch im Aufriß angedeutete Fußbodenreinigungsmaschine 1 besitzt in ihrem Frontbereich eine Scheuerwalze 3 mit diese übergreifender Saughaube 2; es wird also der gesamte Reinigungsvorgang mit Wasserzufuhr, Scheuern und Trockensaugen in an sich bekannter Weise im Frontbereich der Maschine vollzogen. Kombinatorisch neu hierbei ist gemäß Fig.2 nun, daß die motorisch angetriebene Scheuerwalze 3 auf einer lediglich einseitig eingespannten Achse (Freiarmachse) innerhalb der diese beidseits stirnseitig überdeckenden Saughaube 2 umläuft, wobei diese Saughaube 2 gegenüber der Scheuerwalze 3 axialverschieblich geführt ist.The purely schematically shown in Fig. 1 in elevation Floor cleaning machine 1 has in its front area a scrubbing roller 3 with this overlapping Suction hood 2; it becomes the entire cleaning process with water supply, scrubbing and dry vacuuming in in a known manner in the front area of the machine accomplished. Combinatorially new here is according to Fig. 2 now that the motor-driven scrubbing roller 3 on an axis clamped only on one side (free arm axis) within those that cover these on both sides Suction hood 2 rotates, this suction hood 2 guided axially displaceable relative to the scrubbing roller 3 is.

    In spezieller baulicher Ausgestaltung ist bei dem hier dargestellten Ausführungsbeispiel dabei vorgesehen, daß als Führungselement für die Axialverschieblichkeit der Saughaube 2 ein Gestänge 4, 5 mit Rückstellfeder 6 dient, wobei Gestänge 4, 5 und Rückstellfeder 6 an der Maschinenunterseite la freiliegend oder geschützt im Gehäuseinneren angeordnet sind. Außerdem kann anstelle der zeichnerisch nur als Beispiel dargestellten Lösung, auch jede andere Form der Linearführung der Saughaube 2 Verwendung finden und anstelle der Rückstellfeder 6 jede andere bekannte Art von Ausrichtelementen. In a special construction, here illustrated embodiment provided that as a guide element for axial displacement the suction hood 2 a linkage 4, 5 with return spring 6, with rods 4, 5 and return spring 6 on the underside of the machine la exposed or protected inside the housing are. In addition, instead of the drawing only as Example shown solution, also any other form the linear guide of the suction hood 2 are used and instead of the return spring 6 any other known Kind of alignment elements.

    BezugszeichenlisteReference list

    11
    Fußboden-NaßreinigungsmaschineFloor wet cleaning machine
    1a1a
    MaschinenunterseiteMachine base
    22nd
    SaughaubeSuction hood
    2a2a
    stirnseitige Begrenzungfrontal limitation
    33rd
    ScheuerwalzeScrubbing roller
    3a3a
    freie Walzenstirnflächefree roll face
    44th
    Führungsgestänge für SaughaubeGuide linkage for suction hood
    55
    Führungsgestänge für SaughaubeGuide linkage for suction hood
    66
    RückstellfederReturn spring
    77
    Achseaxis
    88th
    LaufrolleRoller
    99
    LenkrolleSwivel castor
    1010th
    SchwenkpunktPivot point
    1111
    AnlenkpunktPivot point
    1212th
    AbweiserrolleDeflector role
    1313
    BegrenzungsanschlagLimit stop
    EE
    BodenflächeFloor area

    Claims (4)

    1. Suction hood (2) for a wet cleaning machine (1) for floors, with a motor-driven scrubbing roller (3), which is acted on by liquid, on an axle (7), wherein the suction hood (2) covers the two end faces of the scrubbing roller (3), characterised in that the axle (7) is clamped in merely at one end face of the scrubbing roller (3) and that the suction hood (2) is guided to be axially displaceable relative to the scrubbing roller (3).
    2. Suction hood according to claim 1, characterised in that a guide element consisting of a rod (4,5) with restoring spring (6) serves for the axial displaceability of the suction hood (2).
    3. Suction hood according to claim 2, characterised in that rod (4,5) and restoring spring (6) are arranged at the machine underside (1a).
    4. Suction hood according to claim 2, characterised in that the guide element for the suction hood (2) lies at least partly in the housing interior of the cleaning machine (1,1a).
    EP96914899A 1996-04-11 1996-04-11 Suction hood for wet-cleaning machines for floors Expired - Lifetime EP0843527B1 (en)

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    PCT/EP1996/001546 WO1997037579A1 (en) 1996-04-11 1996-04-11 Suction hood for wet-cleaning machines for floors

    Publications (2)

    Publication Number Publication Date
    EP0843527A1 EP0843527A1 (en) 1998-05-27
    EP0843527B1 true EP0843527B1 (en) 2000-09-27

    Family

    ID=8166197

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96914899A Expired - Lifetime EP0843527B1 (en) 1996-04-11 1996-04-11 Suction hood for wet-cleaning machines for floors

    Country Status (4)

    Country Link
    US (1) US5970571A (en)
    EP (1) EP0843527B1 (en)
    AT (1) ATE196597T1 (en)
    WO (1) WO1997037579A1 (en)

    Families Citing this family (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19713123C1 (en) * 1997-03-27 1998-10-29 Hefter Georg Maschb Tillage machine
    GB2344750B (en) 1998-12-18 2002-06-26 Notetry Ltd Vacuum cleaner
    US6684452B2 (en) 2001-10-17 2004-02-03 Nilfisk-Advance, Inc. Dual cleaning mode carpet extractor
    US7337490B2 (en) * 2002-10-11 2008-03-04 Nilfisk-Advance, Inc. Floor cleaning apparatus
    DE202011004106U1 (en) * 2011-03-17 2012-06-25 HEFTER Maschinenbau GmbH & Co. KG Soil preparation device for cleaning a substrate

    Family Cites Families (13)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB486499A (en) * 1936-12-01 1938-06-01 Frederick William Taylor Improvements in or relating to portable machines for treating carpets, textiles and floors and articles laid thereon
    DE2323588B2 (en) * 1973-05-10 1978-11-09 Woma Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Vacuum cleaner designed as a vehicle for cleaning streets and surfaces
    US4173056A (en) * 1978-06-26 1979-11-06 Tennant Company Scrubbing machine with tracking squeegee
    US4620341A (en) * 1985-06-03 1986-11-04 Rigby Robert B Curb and gutter machine
    DE3718166A1 (en) * 1987-05-29 1988-12-15 Henkel Kgaa SPRAY EXTRACTION DEVICE
    US4817233A (en) * 1988-04-22 1989-04-04 Tennant Company Scrubber squeegees for scrubbing forward and backward
    ES2048703T3 (en) * 1991-02-01 1996-10-01 Kurt Zachhuber SOIL TREATMENT MACHINE.
    US5265300A (en) * 1992-01-13 1993-11-30 Aar Corp. Floor scrubber
    US5465456A (en) * 1992-03-24 1995-11-14 National Super Service Company Floor cleaning apparatus
    JPH064130A (en) * 1992-06-23 1994-01-14 Sanyo Electric Co Ltd Cleaning robot
    US5319828A (en) * 1992-11-04 1994-06-14 Tennant Company Low profile scrubber
    US5669098A (en) * 1994-07-15 1997-09-23 Tono; Gianni Floor cleaning machine with an additional fluid nozzle with connector and suction by-pass
    DE19510340C1 (en) * 1995-03-22 1996-04-11 Nilfisk Schwamborn Gmbh Suction hood for wet cleaning machine for floor

    Also Published As

    Publication number Publication date
    EP0843527A1 (en) 1998-05-27
    WO1997037579A1 (en) 1997-10-16
    ATE196597T1 (en) 2000-10-15
    US5970571A (en) 1999-10-26

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