US20100236019A1 - Nozzle for a floor cleaning device - Google Patents

Nozzle for a floor cleaning device Download PDF

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Publication number
US20100236019A1
US20100236019A1 US12/599,253 US59925308A US2010236019A1 US 20100236019 A1 US20100236019 A1 US 20100236019A1 US 59925308 A US59925308 A US 59925308A US 2010236019 A1 US2010236019 A1 US 2010236019A1
Authority
US
United States
Prior art keywords
suction mouth
mouth edge
floor nozzle
limit stop
nozzle
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.)
Abandoned
Application number
US12/599,253
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English (en)
Inventor
Martin Behrenswerth
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Assigned to MIELE & CIE. KG reassignment MIELE & CIE. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BEHRENSWERTH, MARTIN
Publication of US20100236019A1 publication Critical patent/US20100236019A1/en
Abandoned 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
    • 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
    • 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
    • A47L9/0666—Nozzles with fixed, e.g. adjustably fixed brushes or the like with tilting, floating or similarly arranged brushes, combs, lips or pads

Definitions

  • the present invention relates to a nozzle for a floor care appliance used for cleaning surfaces such as textile floor coverings and smooth floors
  • DE 199 00 557 A1 and DE 298 03 415 U1 describe a floor nozzle including a gliding sole that is arranged on the bottom side inside and which an opening is provided in the form of a suction mouth.
  • DE-OS 2 139 157 describes a floor nozzle with a pressure lip made of metal or plastic that is disposed within the effective range of the suction mouth, said pressure lip being pivotable between a forward inclined position and a rearward inclined position.
  • floor nozzles are connected to a suction wand via the connection piece and are continuously alternately pushed and pulled across a floor surface to clean the same.
  • the floor nozzles are provided with a ring of bristles which can be extended for cleaning smooth floor surfaces and within which the dirt then accumulates and is sucked away.
  • the ring of bristles is retracted and therefore not active.
  • the carpet pile is raised in the direction of movement by the suction mouth edges provided on the gliding sole. This allows the vacuum air flow to penetrate between the individual pile fibers, enabling the floor nozzle to also pick up the dust that adheres at the bottom of the pile.
  • the floor nozzle When pulling the floor nozzle backwards on high-pile carpets, the floor nozzle is slightly lifted at its rear portion. This reduces the mechanical action exerted by the rear suction mouth edge on the carpet pile, so that a smaller amount dust is removed from the carpet. During forward movement, the rear suction mouth edge is slightly pressed into the carpet and, therefore, increases the resistance to movement.
  • European Patent EP 1 320 317 B1 describes providing the sole plate with a pivoting mechanism that is used to lower the front suction mouth edge during forward movement and the rear suction mouth edge during backward movement.
  • the air path from the suction mouth via the suction duct to the connection piece must be well sealed to avoid suction losses, which, in the case of a movable sole plate, is difficult to achieve and involves a high level of complexity.
  • German document DE 199 00 557 A1 describes forming the rear suction mouth edge as a thin-walled, elastically deformable rib. This reduces the resistance during forward movement of the floor nozzle. When moving the floor nozzle backward, the tip of the lip is exactly in the plane of contact of the floor nozzle, which is defined by the front suction mouth edge and a wheel attached to the nozzle in the rear portion thereof.
  • the front and rear suction mouth edges are each formed by a pivoting plow blade.
  • the end regions of the plow blades do project beyond what is referred to as transverse gliding edges, but during both forward and backward movement, they are located above the plane of contact of the floor nozzle, which here is defined by front support rollers and rear support wheels.
  • an aspect of the present invention is to provide a floor nozzle in such a way that it ensures satisfactory cleaning results even on high-pile carpets and provides great ease of use, and yet is relatively simple to construct.
  • the present invention provides a nozzle for a floor care appliance for cleaning surfaces.
  • the nozzle includes a gliding sole disposed on a bottom side of the floor nozzle and has a suction mouth opening.
  • a suction duct extends from the opening to a connection piece.
  • a front suction mouth edge and a rear suction mouth edge bound the suction mouth with respect to a pushing direction of the floor nozzle.
  • a rear pivot limit stop associated with the rear suction mouth edge and a front pivot limit stop associated with the rear suction mouth edge are included. The rear suction mouth edge projects beyond a plane of contact of the nozzle with the surface when the rear suction mouth edge engages the front pivot limit stop and when the floor nozzle is in a non-contacting position.
  • the front pivot limit stop limits the pivoting angle of the rear suction mouth edge in a direction toward the front suction mouth edge such that the rear suction mouth edge is in a substantially vertical position with respect to the plane of contact when the rear suction mouth edge engages the front pivot limit stop.
  • FIGURE is a cross section of a floor nozzle in accordance with an embodiment of the present invention.
  • the present invention relates to a nozzle for a floor care appliance used for cleaning surfaces such as textile floor coverings and smooth floors, said nozzle having a gliding sole which is arranged on the bottom side and inside which an opening is provided in the form of a suction mouth.
  • a suction duct extends from the opening to a connection piece.
  • the suction mouth is bounded by suction mouth edges with respect to the pushing direction of the floor nozzle.
  • the rear suction mouth edge is pivotable about an axis that extends transverse to the pushing direction and the rear suction mouth edge is associated with a rear pivot limit stop and front pivot limit stop.
  • One aspect of the present invention is that resistance to movement encountered during forward movement of the floor nozzle is reduced and, secondly, that the mechanical action exerted on a carpet during backward movement of the floor nozzle is increased. This is achieved because the rear suction mouth edge projects beyond the plane of contact of the floor nozzle when it engages the front pivot limit stop and the floor nozzle is in a non-contacting position. This allows deeper penetration into the carpet during backward movement. During forward movement, the rear suction mouth edge pivots out of this active position. Forward movement should not be hindered by the front pivot limit stop. Therefore, the front pivot limit stop should be set back from the plane of contact of the floor nozzle.
  • restoring forces act on the rear suction mouth edge in a direction toward the front suction mouth edge. This provides close contact with the surface to be cleaned, and thus high suction power, during forward movement.
  • the rear suction mouth edge is formed by the lower edge of a flexible lip. It is advantageous if the flexibility of the lip in the region of the pivot axis is greater than in the region of contact with the surface to be cleaned. In this manner, the lip is prevented from bending away during backward movement of the nozzle, ensuring that sufficient bending forces are applied to the pile.
  • the rear suction mouth edge may be associated with a rear pivot limit stop. This prevents this edge from bending back into a region in which it would no longer actively seal the suction mouth.
  • the rear pivot limit stop may limit the pivoting angle of the rear suction mouth edge in a direction toward the connection piece in such a way that it is between 45° and 90°, and preferably about 70°, starting from a position perpendicular to the plane of contact of the floor nozzle.
  • the rear suction mouth edge may be associated with a front pivot limit stop.
  • This substantially prevents bending in a direction toward the front suction mouth edge during backward movement of the nozzle, which in turn would result in poorer contact with the carpet.
  • the front pivot limit stop limits the pivoting angle of the rear suction mouth edge in a direction toward the front suction mouth edge in such a way that when the rear suction mouth edge engages the front pivot limit stop, it is in an at least nearly vertical position with respect to the plane of contact.
  • the FIGURE shows a cross-section through a nozzle 1 which is designed in accordance with the present invention and which in conjunction with, for example, a canister or stick vacuum cleaner is suitable for cleaning textile floor coverings and smooth floors.
  • the nozzle includes a plastic housing 2 which merges into a pivotally mounted connection piece 3 . Wheels 4 are arranged below connection piece 3 for increased maneuverability and ease of movement of nozzle 1 .
  • a gliding sole 5 is inserted in housing 2 , said gliding sole being generally made of plastic material or deep-drawn from sheet metal.
  • a height-adjustable peripheral ring of bristles 7 is arranged between the edge of gliding sole 5 and housing side walls 6 .
  • the adjustment mechanism is not relevant to the present invention and will therefore not be further described.
  • Gliding sole 5 is provided with a square opening known as suction mouth 8 .
  • a suction duct 9 extends from suction mouth 8 to connection piece 3 .
  • Suction mouth 8 is formed by a front suction mouth edge 81 and a rear suction mouth edge 82 .
  • floor nozzle 1 is pushed forward and pulled backward in the directions symbolized by double-headed arrow 10 in the FIGURE.
  • front suction mouth edge 81 and the lowest points 41 of the wheels make contact, defining a plane of contact symbolized by line 11 .
  • Front suction mouth edge 81 is formed from gliding sole 5
  • rear suction mouth edge 82 is formed by the lower edge of a flexible lip 83 , the latter being secured in a corresponding receptacle 51 in gliding sole 5 .
  • Lip 83 is formed using a dual injection molding process, the portion 84 which is in contact with the floor covering being made from a hard material.
  • the material portion 85 in the region of receptacle 51 is of greater flexibility. Because of this, lip 83 ; i.e., rear suction mouth edge 82 , is pivotable about an axis that extends transverse to the pushing direction, as symbolized by double-headed arrow 86 .
  • the space behind lip 83 is configured to act as a rear pivot limit stop 87 for rear suction mouth edge 82 .
  • the inclination of gliding sole 5 in this region allows lip 83 ; i.e., rear suction mouth edge 82 , to pivot through an angle of from about 45° to 90°, preferably of about 70°, relative to the normal (to the plane of contact).
  • a rigid web 88 is disposed in front of rear suction mouth edge 82 , said web being set back from the plane of contact by a distance d between 0.5 mm and 4 mm. Web 88 forms a front pivot limit stop, so that the resiliently returned lip 83 remains in a nearly vertical position (with respect to the plane of contact).
  • rear flexible suction mouth edge 82 no longer increases the push force during forward movement of floor nozzle 1 . Due to the contact with the carpet pile, lip 83 pivots backward and is moved at a flat adapted angle across the floor covering. This also ensures a good seal of suction duct 9 against the surface being cleaned, regardless of the height of the pile.
  • rear suction mouth edge 82 is important for efficient pick-up of dust.
  • rear suction mouth edge 82 would no longer comb through the carpet pile so effectively because of the above-described slight lifting of the rear portion of floor nozzle 1 .
  • the flexible suction mouth edge 82 described herein is altogether longer, and because it bears against the front limit stop (web 88 ) in a position perpendicular to the floor covering, the contact with the carpet pile is much more aggressive than with conventional floor nozzles. This results in an increased dust pick-up efficiency.
  • lip 83 is indeed slightly bent in a direction toward front suction mouth edge 81 , but it is nevertheless ensured that lip 83 penetrates deeper into the pile than front suction mouth edge 81 . This ensures that even a short pile will be raised.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles (AREA)
US12/599,253 2007-05-09 2008-04-28 Nozzle for a floor cleaning device Abandoned US20100236019A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007022256.6 2007-05-09
DE102007022256A DE102007022256B4 (de) 2007-05-09 2007-05-09 Düse für ein Bodenpflegegerät
PCT/EP2008/003413 WO2008138477A2 (de) 2007-05-09 2008-04-28 Düse für ein bodenpflegegerät

Publications (1)

Publication Number Publication Date
US20100236019A1 true US20100236019A1 (en) 2010-09-23

Family

ID=39811463

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/599,253 Abandoned US20100236019A1 (en) 2007-05-09 2008-04-28 Nozzle for a floor cleaning device

Country Status (7)

Country Link
US (1) US20100236019A1 (pl)
EP (1) EP2152135B1 (pl)
AT (1) ATE536793T1 (pl)
DE (1) DE102007022256B4 (pl)
DK (1) DK2152135T3 (pl)
PL (1) PL2152135T3 (pl)
WO (1) WO2008138477A2 (pl)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9345371B2 (en) 2012-12-12 2016-05-24 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly
US20170215668A1 (en) * 2014-10-20 2017-08-03 Koninklijke Philips N.V. Floor cleaning device
US10165916B2 (en) 2012-12-12 2019-01-01 Midea America, Corp. Vacuum cleaner base assembly and air passage system
US10299644B2 (en) 2015-09-21 2019-05-28 Dyson Technology Limited Cleaner head
US11844485B2 (en) 2018-02-28 2023-12-19 Dyson Technology Limited Cleaner head

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2965164B1 (fr) * 2010-09-24 2012-10-12 Seb Sa Patin d'equilibrage de suceur d'aspirateur
DE102014117418A1 (de) 2014-11-27 2016-06-02 Miele & Cie. Kg Bodendüse für ein Bodenpflegegerät und Verfahren zum Herstellen einer Bodendüse für ein Bodenpflegegerät
CN107427173B (zh) * 2015-03-06 2020-11-13 阿尔弗雷德·卡赫欧洲两合公司 地面喷嘴
CN106889944A (zh) * 2015-12-18 2017-06-27 康塔有限公司 真空吸尘器头
DE102016117864A1 (de) 2016-09-22 2018-03-22 Miele & Cie. Kg Bodendüse für Staubsauger und Staubsauger
DE102017118542B3 (de) * 2017-08-15 2018-11-08 Miele & Cie. Kg Saugroboter zur autonomen Reinigung von Bodenflächen
FR3078877B1 (fr) * 2018-03-14 2020-02-21 Seb S.A. Suceur d’aspirateur pourvu d’une nervure de grattage arriere
CN108720723B (zh) * 2018-05-22 2024-07-02 添可智能科技有限公司 一种清洁组件、清洁机及清洁方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717409A (en) * 1950-09-15 1955-09-13 Herbert T Draudt Vacuum cleaner nozzle
US6279198B1 (en) * 1999-02-18 2001-08-28 Emerson Electric Co. Convertible wet/dry cleaning system
US20030163889A1 (en) * 2000-09-28 2003-09-04 Bagwell Martin Paul Floor tool

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2139157A1 (de) * 1971-08-05 1973-02-15 Andrae P Kg Saugermundstueck
DE3801757A1 (de) * 1988-01-22 1989-07-27 Wessel Werk Gmbh Staubsaugerduese
DE8812278U1 (de) * 1988-09-28 1990-01-25 Siemens AG, 1000 Berlin und 8000 München Staubsaugermundstück
DE29803415U1 (de) * 1998-02-27 1998-06-25 Kurz, Gerhard, 75382 Althengstett Bodendüse für Staubsauger
DE19900557C2 (de) * 1999-01-09 2002-06-06 Wessel Werk Gmbh Saugkopf für Bodenstaubsauger
FR2792817B1 (fr) * 1999-04-29 2001-06-29 Seb Sa Suceur d'aspirateur a lame de reclage
DE102004005641A1 (de) * 2004-02-04 2005-09-01 Miele & Cie. Kg Düse für ein Bodenpflegegerät

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717409A (en) * 1950-09-15 1955-09-13 Herbert T Draudt Vacuum cleaner nozzle
US6279198B1 (en) * 1999-02-18 2001-08-28 Emerson Electric Co. Convertible wet/dry cleaning system
US20030163889A1 (en) * 2000-09-28 2003-09-04 Bagwell Martin Paul Floor tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9345371B2 (en) 2012-12-12 2016-05-24 Electrolux Home Care Products, Inc. Vacuum cleaner base assembly
US10165916B2 (en) 2012-12-12 2019-01-01 Midea America, Corp. Vacuum cleaner base assembly and air passage system
US20170215668A1 (en) * 2014-10-20 2017-08-03 Koninklijke Philips N.V. Floor cleaning device
US9955835B2 (en) * 2014-10-20 2018-05-01 Koninklijke Philips N.V. Floor cleaning device
US10299644B2 (en) 2015-09-21 2019-05-28 Dyson Technology Limited Cleaner head
US11844485B2 (en) 2018-02-28 2023-12-19 Dyson Technology Limited Cleaner head

Also Published As

Publication number Publication date
EP2152135A2 (de) 2010-02-17
ATE536793T1 (de) 2011-12-15
WO2008138477A3 (de) 2009-01-15
WO2008138477A2 (de) 2008-11-20
EP2152135B1 (de) 2011-12-14
DE102007022256A1 (de) 2008-11-13
DK2152135T3 (da) 2012-02-27
PL2152135T3 (pl) 2012-04-30
DE102007022256B4 (de) 2013-07-25

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MIELE & CIE. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BEHRENSWERTH, MARTIN;REEL/FRAME:023487/0904

Effective date: 20090918

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION