EP0843527A1 - Suction hood for wet-cleaning machines for floors - Google Patents

Suction hood for wet-cleaning machines for floors

Info

Publication number
EP0843527A1
EP0843527A1 EP96914899A EP96914899A EP0843527A1 EP 0843527 A1 EP0843527 A1 EP 0843527A1 EP 96914899 A EP96914899 A EP 96914899A EP 96914899 A EP96914899 A EP 96914899A EP 0843527 A1 EP0843527 A1 EP 0843527A1
Authority
EP
European Patent Office
Prior art keywords
suction hood
scrubbing roller
suction
wet
floors
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
EP96914899A
Other languages
German (de)
French (fr)
Other versions
EP0843527B1 (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 Schwamborn 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 Nilfisk Schwamborn GmbH filed Critical Nilfisk Schwamborn GmbH
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

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
    • A47L11/4036—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 a suction hood on wet floor cleaning machines for primarily commercial use; it is based on a device as described, for example, in US Pat. No. 4,817,233.
  • the object of the present invention is therefore to provide a construction or arrangement with respect to the suction hood which also enables the scrubbing roller to move fully towards the edges of the room and thus to completely clean such floor surfaces.
  • the scrubbing roller is mounted on a only one-end clamped, that is, on a so-called free arm axis b) the suction hood is axially displaceably mounted or guided relative to the scrubbing roller on the machine frame.
  • the suction hood can thus "retract" at the edges as far as possible with the brush roller at the edges up to the vertical right level of the free scrubbing roller end face and thus enable the edge surface in question to be cleaned with exact edges while maintaining the full suction effect.
  • Fig. 1 shows a floor cleaning machine schematically in side view
  • Fig. 2 is a view of the machine from below.
  • the floor cleaning machine X indicated purely schematically in FIG. 1, has in its front region a scrubbing roller 3 with an overlapping one Suction hood 2; the entire cleaning process with water supply, scrubbing and dry vacuuming is thus carried out in a manner known per se in the front area of the machine.
  • Combinatorically new here according to FIG. 2 is that the motor-driven scrubbing roller 3 rotates on a (free-arm) axis which is only clamped on one side within the suction hood 2 which covers it on both sides at the front side, this suction hood 2 leading axially displaceably relative to the scrubbing roller 3 is.
  • a (parallelogram) linkage 4, 5 with return spring 6 is used as a guide element for the axial displacement of the suction hood 2, linkage 4, 5 and return spring 6 on the machine bottom la are exposed or protected inside the housing.
  • any other form of linear guide of the suction hood 2 can be used and instead of the return spring 6 any other known type of alignment elements.

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

Saughaube für Fußboden-Naßreinigungsmaschinen Suction hood for floor cleaning machines
Die Erfindung bezieht sich nach dem Oberbegriff des Pa¬ tentanspruchs 1 auf eine Saughaube an Fußboden-Naßrei- nigungsmaschinen für vornehmlich gewerblichen Einsatz; sie geht dabei aus von einem Gerat, wie es beispiels¬ weise in der US-PS 48 17 233 beschrieben ist.According to the preamble of claim 1, the invention relates to a suction hood on wet floor cleaning machines for primarily commercial use; it is based on a device as described, for example, in US Pat. No. 4,817,233.
ORIGINAL UNTERLAGEN Die Problematik bei allen bislang bekannten Maschinen dieser Gattung besteht bezüglich des Trockensaugens der zu bearbeitenden Bodenflachen vor allem dann, 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.ORIGINAL DOCUMENTS The problem with all previously known machines of this type with regard to the dry suction of the floor surfaces to be processed is that the suction hood must have a certain protrusion over the ends of the scrubbing roller to achieve the desired suction effect, which in turn has the disadvantage that with a correspondingly large protrusion, the scrubbing roller inevitably cannot get close enough to corners and edges and thus dirt strips remain there.
Die vorliegende Erfindung hat sich daher die Aufgabe ge¬ stellt, eine Bauweise bzw. Anordnung bezüglich der Saug¬ haube zu treffen, die auch ein volles Heranfahren der Scheuerwalze an Raumkanten und somit eine vollkommene Reinigung solcher Bodenflachen ermöglicht.The object of the present invention is therefore to provide a construction or arrangement with respect to the suction hood which also enables the scrubbing roller to move fully towards the edges of the room and thus to completely clean such floor surfaces.
Gelost wird diese Aufgabe dabei gemäß dem Patentanspruch 1 in überzeugend einfacher Weise durch das an sich kom¬ binatorische Zusammenwirken folgender zwei Baumerkmale:This object is achieved thereby, according to claim 1 in ü convincingly simple manner by the following there are suitable in itself binatorische interaction of two structural features:
a) Die Scheuerwalze ist auf einer lediglich einendig eingespannten, also auf einer sogenannten Freiarmachse gelagert und b) die Saughaube ist gegenüber der Scheuerwalze axialverschieblich am Maschinengestell gela¬ gert bzw. geführt.a) The scrubbing roller is mounted on a only one-end clamped, that is, on a so-called free arm axis b) the suction hood is axially displaceably mounted or guided relative to the scrubbing roller on the machine frame.
Die Saughaube kann sich somit also beim Herausfahren mit der Bürstenwalze an Kanten maximal bis zur lot¬ rechten Ebene der freien Scheuerwalzen-Stirnflache "zurückziehen" und damit unter Beibehaltung der vollen Saugwirkung ein kantengenaues Reinigen der betreffenden Bodenfläche ermöglichen. Spezielle bauliche Ausgestal¬ tungsmerkmale dieser Erfindung sind noch in den Unter- anspruchen aufgeführt und zudem anhand einer Zeichnungs¬ skizze naher erläutert.The suction hood can thus "retract" at the edges as far as possible with the brush roller at the edges up to the vertical right level of the free scrubbing roller end face and thus enable the edge surface in question to be cleaned with exact edges while maintaining the full suction effect. Special structural features of this invention are still listed in the subclaims and are also explained in more detail with the aid of a drawing sketch.
Es zeigenShow it
Fig. 1 eine Fußbodenreinigungsmaschine schematisch dargestellt in Seiten¬ ansicht undFig. 1 shows a floor cleaning machine schematically in side view and
Fig. 2 eine Ansicht auf die Maschine von unten .Fig. 2 is a view of the machine from below.
Die in Fig. 1 rein schematisch im Aufriß angedeutete Fußbodenreinigungsmaschine X besitzt in ihrem Frontbe¬ reich eine Scheuerwalze 3 mit diese übergreifender Saughaube 2; es wird also der gesamte ReinigungsVor¬ gang 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 ( Freiarm- ) Achse innerhalb der diese beidseits stirnseitig über¬ deckenden Saughaube 2 umläuft, wobei diese Saughaube 2 gegenüber der Scheuerwalze 3 axialverschieblich ge¬ führt ist.The floor cleaning machine X, indicated purely schematically in FIG. 1, has in its front region a scrubbing roller 3 with an overlapping one Suction hood 2; the entire cleaning process with water supply, scrubbing and dry vacuuming is thus carried out in a manner known per se in the front area of the machine. Combinatorically new here according to FIG. 2 is that the motor-driven scrubbing roller 3 rotates on a (free-arm) axis which is only clamped on one side within the suction hood 2 which covers it on both sides at the front side, this suction hood 2 leading axially displaceably relative to the scrubbing roller 3 is.
In spezieller baulicher Ausgestaltung ist bei dem hier dargestellten Ausfuhrungsbeispiel dabei vorgesehen, daß als Führungselement für die Axialverschieblich- keit der Saughaube 2 ein ( Parallelogramm- ) Gestänge 4, 5 mit Rückstellfeder 6 dient, wobei Gestänge 4, 5 und Rückstellfeder 6 an der Maschinenuπterseite la freiliegend oder geschützt im Gehauseinneren 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. BezugszeichenlisteIn a special structural embodiment, it is provided in the exemplary embodiment shown here that a (parallelogram) linkage 4, 5 with return spring 6 is used as a guide element for the axial displacement of the suction hood 2, linkage 4, 5 and return spring 6 on the machine bottom la are exposed or protected inside the housing. In addition, instead of the solution shown in the drawing only as an example, any other form of linear guide of the suction hood 2 can be used and instead of the return spring 6 any other known type of alignment elements. Reference list
1 Reinigungsmaschine la Maschinenunterseite1 cleaning machine la machine underside
2 Saughaube2 suction hood
2a stirnseitige Begrenzung2a frontal limitation
3 Scheuerwalze3 scrubbing roller
3a freie Walzenstirnfläche3a free roll face
4 Führungsgestäπge für Saughaube4 guide rods for suction hood
5 Führungsgestänge für Saughaube5 guide rods for suction hood
6 Rückstellfeder6 return spring
7 ( Freiarm-) Achse7 (free arm) axis
8 Laufrolle8 roller
9 Lenkrolle 0 Schwenkpunkt 1 Anleπkpunkt 2 Abweiserrolle 3 Begrenzungsanschlag E Bodenfläche 9 swivel castor 0 pivot point 1 pivot point 2 deflector roller 3 limit stop E floor surface

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Saughaube ( 2 ) für Fußboden-Naßreinigungsmaschine1. Suction hood (2) for floor wet cleaning machine
( 1 ) , bei denen eine flüssigkeitsbeaufschlagte, mo¬ torisch angetriebene Scheuerwalze ( 3 ) auf einer le¬ diglich einseitig eingespannten ( Freiarm- ) Achse (7) innerhalb der diese beidseits stirnseitig überdecken¬ den Saughaube ( 2 ) umlauft, wobei diese Saughaube ( 2 ) gegenüber der Scheuerwalze ( 3 ) axialverschieb- lich gefuhrt ist.(1), in which a liquid-loaded, motor-driven scrubbing roller (3) rotates on a (free-arm) axis (7) which is only clamped on one side and within which the suction hood (2), which covers both ends, is covered, this suction hood ( 2) is axially displaceable relative to the scrubbing roller (3).
2. Saughaube nach Anspruch 1,2. suction hood according to claim 1,
d a d u r c h g e k e n n z e i c h n e t , daß als Führungselement für die Axialverschieblich- keit der Saughabe ( 2 ) ein ( Parallelogramm- ) Gestänge ( 4, 5 ) mit Rückstellfeder ( 6 ) dient.characterized , that a (parallelogram) linkage (4, 5) with return spring (6) serves as a guide element for the axial displaceability of the suction hub (2).
3. Saughaube nach Anspruch 2,3. suction hood according to claim 2,
d a d u r c h g e k e n n z e i c h n e t ,characterized ,
daß Gestänge ( 4, 5 ) und Rückstellfeder ( 6 ) an der Maschinenunterseite ( la ) angeordnet sind.that linkage (4, 5) and return spring (6) are arranged on the underside of the machine (la).
4. Saughaube nach Anspruch 1 und 2,4. suction hood according to claim 1 and 2,
d a d u r c h g e k e n n z e i c h n e t ,characterized ,
daß die Führungs- und Ausrichtelemente für die Saug¬ haube ( 2 ) zumindest teilweise im Gehäuseinneren der Reinigungsmaschine ( 1, la ) liegen. that the guide and alignment elements for the suction hood (2) are at least partially inside the housing of the cleaning machine (1, la).
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 true EP0843527A1 (en) 1998-05-27
EP0843527B1 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)

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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
DK0569430T3 (en) * 1991-02-01 1994-11-28 Kurt Zachhuber Floor treating 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9737579A1 *

Also Published As

Publication number Publication date
US5970571A (en) 1999-10-26
ATE196597T1 (en) 2000-10-15
WO1997037579A1 (en) 1997-10-16
EP0843527B1 (en) 2000-09-27

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