EP1029495A2 - Suction head for vacuum cleaner - Google Patents

Suction head for vacuum cleaner Download PDF

Info

Publication number
EP1029495A2
EP1029495A2 EP99124248A EP99124248A EP1029495A2 EP 1029495 A2 EP1029495 A2 EP 1029495A2 EP 99124248 A EP99124248 A EP 99124248A EP 99124248 A EP99124248 A EP 99124248A EP 1029495 A2 EP1029495 A2 EP 1029495A2
Authority
EP
European Patent Office
Prior art keywords
suction
suction head
strip
sealing strip
head according
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
EP99124248A
Other languages
German (de)
French (fr)
Other versions
EP1029495B1 (en
EP1029495A3 (en
Inventor
Horst Dilger
Dieter Kaffenberger
Hans-Joachim Steudtner
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.)
Wessel Werk GmbH
Original Assignee
Wessel Werk 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 Wessel Werk GmbH filed Critical Wessel Werk GmbH
Publication of EP1029495A2 publication Critical patent/EP1029495A2/en
Publication of EP1029495A3 publication Critical patent/EP1029495A3/en
Application granted granted Critical
Publication of EP1029495B1 publication Critical patent/EP1029495B1/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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/066—Nozzles with fixed, e.g. adjustably fixed brushes or the like with adjustably mounted brushes, combs, lips or pads; Height adjustment of nozzle or dust loosening tools

Definitions

  • the sealing strip arranged on the underside of the carrier is usually designed as a bristle strip in practice. In addition to the sealing function, it also has a supporting function, if the suction head is used on smooth floors. Forces, due to the negative pressure prevailing in the suction mouth as well even with back and forth work movements on the Upper housing part are exercised when sucking Smooth bottoms from one or more bristle strips attached are arranged on the underside of the carrier plate.
  • a suction head known from DE 196 28 070 A1, which for Vacuuming carpets, for vacuuming dry floors and can also be used for wet vacuuming smooth floors is that exist at the bottom of a vertical adjustable carrier arranged sealing strips Rubber lips. The rubber lips are flexible and meet no supporting function. The suction head is supported on front and rear wheels.
  • Bristle strips have the disadvantage that they develop over the course of Time to get bushy and clog with dirt.
  • a permanent load on the bristle strips for example can occur if the suction head is used regularly extended bristle strip is also turned off irreversible deformation of the bristle strip possible.
  • the Bushiness or permanent deformation of the bristle strip can lead to malfunctions. So it happens that the bristles are on the back of the sliding sole jam and hinder the extension of the carrier.
  • the on Duration of unavoidable contamination of the bristle strip reduces furthermore by dingy appearance the value of the Suction head. Dirt can get stuck between the bristles Soiling clean floors, and jammed between the bristles Grains can also be found on delicate smooth floors lead to scratches.
  • the invention has for its object a suction head for vacuuming textile floor coverings and smooth floors specify the sealing strip that can be extended at the bottom is less prone to pollution and failure than one Bristle strip.
  • the sealing strip is designed as a cushion strip.
  • Under the upholstery strip there is an elastically compressible Strand understood with sufficient compressive strength to absorb the pressure force caused by the suction vacuum as well as when handling the connected to the suction head Suction tube exerted on the upper housing part becomes.
  • the cushion strip also has a sufficient Dimensional strength on to horizontal forces at and around Hereby sliding movements of the suction head on a Smooth surface act on the sealing strip, almost deformation-free transferred to.
  • the use of an elastic compressible material as a sealing strip enables a flexible adjustment to unevenness in the floor, e.g. at stepped transitions, joints u.
  • the sealing strip consists of foam or a foam body having.
  • the foam is appropriately proportionate soft set. Foam is also said to be from that Term includes.
  • the sealing strip can also be mainly fibrous Material, preferably a needle felt. Further the sealing strip can be an elastically compressible Plastic hollow body, e.g. in the form of a hose. Finally, it is within the scope of the invention that the sealing strip made of a composite material made of foam and / or needle felt and / or plastic, which Composite material from at least two of the aforementioned Materials is made.
  • the upholstery strip is either as a sealing ring according to the scope of the Upper housing part formed or consists of a straight Strip in the suction direction at least in front of the suction mouth is arranged.
  • the contact surface of the sealing strip points expedient a profile with surveys and recesses Improve the front suction.

Abstract

The suction head has a substrate which is vertically adjustable in a housing upper member. The housing upper member has a suction channel that blends onto a suction mouth of a glide sole. The substrate has a sealing strip formed as an upholstered strip such as foam material.

Description

Die Erfindung betrifft einen Saugkopf für Bodenstaubsauger mit

  • einem Gehäuseoberteil, das einen Saugkanal enthält,
  • einer an das Gehäuseoberteil angeschlossenen Gleitsohle mit einem Saugmund, in den der Saugkanal einmündet, und
  • einem im Gehäuseoberteil vertikal verstellbar angeordneten Träger,
    • wobei an der Unterseite des Trägers mindestens ein Dichtstreifen angeordnet ist, der bei einer Stellbewegung des Trägers durch einen bodenseitigen Schlitz ausfahrbar ist und auf das Gehäuseoberteil wirkende Kräfte überträgt. Der Saugkopf ist zum Saugen auf Teppichböden und auch zum Saugen auf Glattböden einsetzbar.The invention relates to a suction head for vacuum cleaners with
  • an upper housing part that contains a suction channel,
  • a sliding sole connected to the upper housing part with a suction mouth into which the suction channel opens, and
  • a carrier arranged vertically adjustable in the upper part of the housing,
    • wherein at least one sealing strip is arranged on the underside of the carrier, which can be extended through a slot on the bottom when the carrier is moved and transmits forces acting on the upper housing part. The suction head can be used for vacuuming on carpets and also for vacuuming on smooth floors.

    Der an der Unterseite des Trägers angeordnete Dichtstreifen ist in der Praxis zumeist als Borstenstreifen ausgebildet. Er erfüllt neben der Dichtfunktion auch eine Tragfunktion, wenn der Saugkopf auf Glattböden eingesetzt wird. Kräfte, die durch den im Saugmund herrschenden Unterdruck sowie auch bei hin- und hergehenden Arbeitsbewegungen auf das Gehäuseoberteil ausgeübt werden, werden beim Saugen von Glattböden von einem oder mehreren Borstenstreifen, die an der Unterseite der Trägerplatte angeordnet sind, aufgenommen. The sealing strip arranged on the underside of the carrier is usually designed as a bristle strip in practice. In addition to the sealing function, it also has a supporting function, if the suction head is used on smooth floors. Forces, due to the negative pressure prevailing in the suction mouth as well even with back and forth work movements on the Upper housing part are exercised when sucking Smooth bottoms from one or more bristle strips attached are arranged on the underside of the carrier plate.

    Bei einem aus DE 196 28 070 A1 bekannten Saugkopf, der zum Saugen von Teppichböden, zum Trockensaugen von Glattböden sowie außerdem zum Nasssaugen von Glattböden einsetzbar ist, bestehen die an der Unterseite eines vertikal verstellbaren Trägers angeordneten Dichtstreifen aus Gummilippen. Die Gummilippen sind flexibel und erfüllen keine Tragfunktion. Die Abstützung des Saugkopfes erfolgt an vorderen und hinteren Laufrädern.In a suction head known from DE 196 28 070 A1, which for Vacuuming carpets, for vacuuming dry floors and can also be used for wet vacuuming smooth floors is that exist at the bottom of a vertical adjustable carrier arranged sealing strips Rubber lips. The rubber lips are flexible and meet no supporting function. The suction head is supported on front and rear wheels.

    Borstenstreifen haben den Nachteil, dass sie im Laufe der Zeit buschig werden und sich mit Schmutz zusetzen. Bei einer Dauerbelastung der Borstenstreifen, die beispielsweise auftreten kann, wenn der Saugkopf regelmäßig mit ausgefahrener Borstenleiste abgestellt wird, ist ferner eine irreversible Verformung der Borstenleiste möglich. Die Buschigkeit oder eine bleibende Verformung der Borstenleiste kann zu Funktionsstörungen führen. So kommt es vor, dass die Borsten sich an der Rückseite der Gleitsohle verklemmen und das Ausfahren des Trägers behindern. Die auf Dauer unvermeidbare Verschmutzung der Borstenleiste mindert ferner durch schmuddeliges Aussehen die Wertigkeit des Saugkopfes. Zwischen den Borsten festsitzender Schmutz kann saubere Böden anschmutzen, und zwischen den Borsten eingeklemmte Körner können auf empfindlichen Glattböden auch zu Kratzern führen.Bristle strips have the disadvantage that they develop over the course of Time to get bushy and clog with dirt. At a permanent load on the bristle strips, for example can occur if the suction head is used regularly extended bristle strip is also turned off irreversible deformation of the bristle strip possible. The Bushiness or permanent deformation of the bristle strip can lead to malfunctions. So it happens that the bristles are on the back of the sliding sole jam and hinder the extension of the carrier. The on Duration of unavoidable contamination of the bristle strip reduces furthermore by dingy appearance the value of the Suction head. Dirt can get stuck between the bristles Soiling clean floors, and jammed between the bristles Grains can also be found on delicate smooth floors lead to scratches.

    Der Erfindung liegt die Aufgabe zugrunde, einen Saugkopf zum Saugen von textilen Bodenbelägen und Glattböden anzugeben, dessen bodenseitig ausfahrbare Dichtleiste weniger verschmutzungs- und störanfällig ist als eine Borstenleiste. The invention has for its object a suction head for vacuuming textile floor coverings and smooth floors specify the sealing strip that can be extended at the bottom is less prone to pollution and failure than one Bristle strip.

    Ausgehend von einem Saugkopf mit den eingangs beschriebenen Merkmalen wird die Aufgabe erfindungsgemäß dadurch gelöst, dass der Dichtstreifen als Polsterleiste ausgebildet ist. Unter Polsterleiste wird hier ein elastisch komprimierbarer Strang verstanden mit einer ausreichenden Druckfestigkeit zur Aufnahme der Andruckkraft, die durch den Saugunterdruck sowie bei der Handhabung des an den Saugkopf angeschlossenen Saugrohres auf das Gehäuseoberteil ausgeübt wird. Die Polsterleiste weist ferner eine ausreichende Gestaltfestigkeit auf, um horizontale Kräfte, die bei hinund hergehenden Gleitbewegungen des Saugkopfes auf einem glatten Boden auf die Dichtleiste einwirken, annähernd verformungsfrei zu übertragen. Die Verwendung eines elastisch kompressiblen Materials als Dichtstreifen ermöglicht eine nachgiebige Anpassung an Unebenheiten des Bodens, z.B. bei stufenförmigen Übergängen, Fugen u. dgl., eine Absorption von Stößen und eine Anpassung bei Kippbewegungen des Saugkopfes. Damit ist eine schonende Gleitbewegung auf Glattböden gewährleistet. Bei einer entsprechenden Bemessung der Aufstandsfläche sowie des Querschnittes des Dichtstreifens ist dieser in der Lage, die bei hin- und hergehenden Saugbewegungen auftretenden Kräfte nahezu verformungsfrei aufzunehmen.Starting from a suction head with the ones described at the beginning According to the invention, the object is achieved in that that the sealing strip is designed as a cushion strip. Under the upholstery strip there is an elastically compressible Strand understood with sufficient compressive strength to absorb the pressure force caused by the suction vacuum as well as when handling the connected to the suction head Suction tube exerted on the upper housing part becomes. The cushion strip also has a sufficient Dimensional strength on to horizontal forces at and around Hereby sliding movements of the suction head on a Smooth surface act on the sealing strip, almost deformation-free transferred to. The use of an elastic compressible material as a sealing strip enables a flexible adjustment to unevenness in the floor, e.g. at stepped transitions, joints u. Like., absorption of bumps and an adjustment when the suction head tilts. This is a gentle sliding movement on smooth floors guaranteed. With a corresponding dimensioning of the Footprint and the cross section of the sealing strip is this able to with the back and forth Forces occurring in suction movements are almost deformation-free to record.

    Es sind verschiedene Materialien einsetzbar. Eine bevorzugte Ausführung der Erfindung sieht vor, dass der Dichtstreifen aus Schaumstoff besteht oder einen Schaumstoffkörper aufweist. Der Schaumstoff ist zweckmäßig verhältnismäßig weich eingestellt. Auch Schaumgummi soll von dem Begriff umfasst sein. Different materials can be used. A preferred one Execution of the invention provides that the sealing strip consists of foam or a foam body having. The foam is appropriately proportionate soft set. Foam is also said to be from that Term includes.

    Der Dichtstreifen kann auch hauptsächlich aus faserigem Material, vorzugsweise einem Nadelfilz, bestehen. Ferner kann der Dichtstreifen einen elastisch komprimierbaren Kunststoff-Hohlkörper, z.B. in Form eines Schlauches, aufweisen. Schließlich liegt es im Rahmen der Erfindung, dass der Dichtstreifen aus einem Verbundmaterial aus Schaumstoff und/oder Nadelfilz und/oder Kunststoff besteht, wobei das Verbundmaterial aus mindestens zwei der vorgenannten Materialien gefertigt ist.The sealing strip can also be mainly fibrous Material, preferably a needle felt. Further the sealing strip can be an elastically compressible Plastic hollow body, e.g. in the form of a hose. Finally, it is within the scope of the invention that the sealing strip made of a composite material made of foam and / or needle felt and / or plastic, which Composite material from at least two of the aforementioned Materials is made.

    Je nach Ausführung des Saugkopfes ist die Polsterleiste entweder als Dichtkranz entsprechend dem Umfang des Gehäuseoberteils ausgebildet oder besteht aus einem geraden Streifen, der in Saugrichtung zumindest vor dem Saugmund angeordnet ist. Die Auflagefläche der Dichtleiste weist zweckmäßig ein Profil mit Erhebungen und Vertiefungen zur Verbesserung der Frontabsaugung auf.Depending on the design of the suction head, the upholstery strip is either as a sealing ring according to the scope of the Upper housing part formed or consists of a straight Strip in the suction direction at least in front of the suction mouth is arranged. The contact surface of the sealing strip points expedient a profile with surveys and recesses Improve the front suction.

    Claims (8)

    Saugkopf für Bodenstaubsauger mit einem Gehäuseoberteil, das einen Saugkanal enthält, einer an das Gehäuseoberteil angeschlossenen Gleitsohle mit einem Saugmund, in den der Saugkanal einmündet, und einem im Gehäuseoberteil vertikal verstellbar angeordneten Träger, wobei an der Unterseite des Trägers mindestens ein Dichtstreifen angeordnet ist, der bei einer Stellbewegung des Trägers durch einen bodenseitigen Schlitz ausfahrbar ist und auf das Gehäuseoberteil wirkende Kräfte überträgt, dadurch gekennzeichnet, dass der Dichtstreifen als Polsterleiste ausgebildet ist.Suction head for vacuum cleaner with an upper housing part that contains a suction channel, a sliding sole connected to the upper housing part with a suction mouth into which the suction channel opens, and a carrier arranged vertically adjustable in the upper part of the housing, wherein at least one sealing strip is arranged on the underside of the carrier, which can be extended through a slot on the bottom when the carrier is moved and transmits forces acting on the upper housing part, characterized in that the sealing strip is designed as a cushion strip. Saugkopf nach Anspruch 1, dadurch gekennzeichnet, dass der Dichtstreifen aus Schaumstoff besteht oder einen Schaumstoffkörper aufweist.Suction head according to claim 1, characterized in that the sealing strip is made of foam or one Has foam body. Saugkopf nach Anspruch 1, dadurch gekennzeichnet, dass der Dichtstreifen hauptsächlich aus faserigem Material, vorzugsweise einem Nadelfilz, besteht.Suction head according to claim 1, characterized in that the sealing strip mainly made of fibrous material, preferably a needle felt. Saugkopf nach Anspruch 1, dadurch gekennzeichnet, dass der Dichtstreifen einen elastisch komprimierbaren Kunststoff-Hohlkörper aufweist. Suction head according to claim 1, characterized in that the sealing strip is an elastically compressible plastic hollow body having. Saugkopf nach Anspruch 1, dadurch gekennzeichnet, dass der Dichtstreifen aus einem Verbundmaterial aus Schaumstoff und/oder Nadelfilz und/oder Kunststoff besteht, wobei das Verbundmaterial aus mindestens zwei der vorgenannten Materialien gefertigt ist.Suction head according to claim 1, characterized in that the sealing strip made of a composite material made of foam and / or needle felt and / or plastic, which Composite material from at least two of the aforementioned Materials is made. Saugkopf nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Polsterleiste als gerader Streifen ausgebildet und in Saugrichtung zumindest vor dem Saugmund angeordnet ist.Suction head according to one of claims 1 to 5, characterized characterized that the upholstery strip as a straight strip trained and in the suction direction at least before the suction mouth is arranged. Saugkopf nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Polsterleiste als Dichtkranz entsprechend dem Umfang des Gehäuseoberteils ausgebildet ist.Suction head according to one of claims 1 to 5, characterized characterized that the upholstery strip as a sealing ring accordingly the circumference of the upper housing part is formed. Saugkopf nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Auflagefläche der Dichtleiste ein Profil mit Erhebungen und Vertiefungen zur Verbesserung der Frontabsaugung aufweist.Suction head according to one of claims 1 to 7, characterized marked that the contact surface of the sealing strip Profile with surveys and in-depths to improve the Has front suction.
    EP99124248A 1999-02-19 1999-12-04 Suction head for vacuum cleaner Expired - Lifetime EP1029495B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE29903009U 1999-02-19
    DE29903009U DE29903009U1 (en) 1999-02-19 1999-02-19 Suction head for vacuum cleaner

    Publications (3)

    Publication Number Publication Date
    EP1029495A2 true EP1029495A2 (en) 2000-08-23
    EP1029495A3 EP1029495A3 (en) 2002-09-18
    EP1029495B1 EP1029495B1 (en) 2004-07-28

    Family

    ID=8069667

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99124248A Expired - Lifetime EP1029495B1 (en) 1999-02-19 1999-12-04 Suction head for vacuum cleaner

    Country Status (3)

    Country Link
    EP (1) EP1029495B1 (en)
    DE (2) DE29903009U1 (en)
    HK (1) HK1029267A1 (en)

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3801757A1 (en) * 1988-01-22 1989-07-27 Wessel Werk Gmbh Vacuum cleaner nozzle
    EP0552652A1 (en) * 1992-01-22 1993-07-28 Gerhard Kurz Vacuum cleaner nozzle
    FR2695023A1 (en) * 1992-08-27 1994-03-04 Olivier Ets Georges Vacuum cleaner suction head with protected sole-plate - has retractable brush-bars with projecting skids and/or studs raising sole-plate slightly off floor during brushing
    EP0747001A1 (en) * 1995-06-06 1996-12-11 Karl Martin Vacuum cleaner nozzle
    EP0788758A2 (en) * 1996-02-07 1997-08-13 Techtronic Industries Co., Ltd. Vacuum cleaner head

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3801757A1 (en) * 1988-01-22 1989-07-27 Wessel Werk Gmbh Vacuum cleaner nozzle
    EP0552652A1 (en) * 1992-01-22 1993-07-28 Gerhard Kurz Vacuum cleaner nozzle
    FR2695023A1 (en) * 1992-08-27 1994-03-04 Olivier Ets Georges Vacuum cleaner suction head with protected sole-plate - has retractable brush-bars with projecting skids and/or studs raising sole-plate slightly off floor during brushing
    EP0747001A1 (en) * 1995-06-06 1996-12-11 Karl Martin Vacuum cleaner nozzle
    EP0788758A2 (en) * 1996-02-07 1997-08-13 Techtronic Industries Co., Ltd. Vacuum cleaner head

    Also Published As

    Publication number Publication date
    EP1029495B1 (en) 2004-07-28
    DE29903009U1 (en) 1999-05-06
    EP1029495A3 (en) 2002-09-18
    DE59910066D1 (en) 2004-09-02
    HK1029267A1 (en) 2001-03-30

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