WO1999065376A1 - Outil de nettoyage aspirant - Google Patents

Outil de nettoyage aspirant Download PDF

Info

Publication number
WO1999065376A1
WO1999065376A1 PCT/EP1999/003785 EP9903785W WO9965376A1 WO 1999065376 A1 WO1999065376 A1 WO 1999065376A1 EP 9903785 W EP9903785 W EP 9903785W WO 9965376 A1 WO9965376 A1 WO 9965376A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
air turbine
air
cleaning tool
suction cleaning
Prior art date
Application number
PCT/EP1999/003785
Other languages
German (de)
English (en)
Inventor
Peter Wörwag
Edgar Melzner
Jürgen Jonischus
Original Assignee
Düpro AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26046745&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1999065376(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19826041A external-priority patent/DE19826041C5/de
Priority claimed from DE1998157629 external-priority patent/DE19857629A1/de
Application filed by Düpro AG filed Critical Düpro AG
Priority to DE59907302T priority Critical patent/DE59907302D1/de
Priority to EP99927822A priority patent/EP1085832B1/fr
Publication of WO1999065376A1 publication Critical patent/WO1999065376A1/fr

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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0416—Driving means for the brushes or agitators driven by fluid pressure, e.g. by means of an air turbine
    • 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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0427—Gearing or transmission means therefor
    • A47L9/0444—Gearing or transmission means therefor for conveying motion by endless flexible members, e.g. belts

Definitions

  • the invention relates to a suction cleaning tool for a suction cleaning device of the type specified in the preamble of claim 1.
  • Suction cleaning tools usually comprise a housing with a connecting piece for an air flow connection to the suction unit of a suction cleaning device and a brush roller which is rotatably mounted in the housing near the suction opening thereof. In their lower position, the bristles of the brush roller protrude outwards through the suction opening and thus make it possible to work on the surface to be vacuumed.
  • An air turbine which is acted upon by the suction air flow, is often used to drive the brush roller. Because of their simple construction, air turbines are often used in central suction systems and in devices for commercial cleaning, since such suction devices have powerful fans.
  • the present invention has for its object to provide a suction cleaning tool of the type specified in the preamble of claim 1, in which the turbine, based on the power, has a small size.
  • the air turbine has a lower weight than previously known arrangements and a reduced use of materials.
  • the resulting lower mass of the air turbine leads to faster changes in speed both when accelerating and when decelerating, so that in particular a faster braking of the brush roller is achieved.
  • Air turbines have proven to be particularly advantageous in which the ratio of the diameter to the width is greater than 1.3: 1 and is preferably between 1.4 and 2.5.
  • the width of the air turbine is preferably between 25 mm and 40 mm, whereas the diameter is between 45 mm and 75 mm.
  • the inlet opening is expediently designed as an aperture whose aperture width corresponds to the width of the air turbine, the height of the aperture being at least 7 mm.
  • the aperture cross section is preferably between 180 mm 2 and 320 mm 2 .
  • Extension has the width of the air turbine, the extension preferably being at least approximately twice the width.
  • the considerably larger extension of the turbine chamber in the axial direction of the air turbine offers the advantage that the air turbine can be axially displaced within the turbine chamber, so that the power and the speed can also be varied by the respective position of the air turbine with respect to the inflow opening.
  • the air turbine is preferably arranged off-center in the turbine chamber.
  • the air turbine is preferably designed as a flow-through turbine, so that the air flow acts on it in two stages.
  • FIG. 5 shows an air turbine designed as a flow-through turbine.
  • FIG. 1 shows a schematic illustration of a longitudinal section through a suction cleaning tool 1, which has a front area 3 with a suction opening 4 in a housing 2 and a turbine chamber 12 with an air turbine 13 in a central section 8.
  • the air tower Line 13 is used to drive a brush roller 5, the bristles 6 of which, in their lower position, protrude through the suction opening 4 in order to process the substrate to be vacuumed.
  • the brush roller 5 is coupled to the air turbine 13 by means of a toothed belt 7.
  • the air turbine 13 is acted upon by a suction air flow 24, which is generated by a suction unit (not shown) connected to a suction connection 9 and enters the turbine chamber 12 through an inflow opening 20 arranged in a partition 30.
  • the turbine chamber 12 has a length L in the longitudinal direction, that is to say in the working direction of the suction cleaning tool 1, which is, for example, between 55 mm and 95 mm.
  • the height of the turbine chamber 12 is denoted by H and is preferably between 50 mm and 90 mm.
  • FIG. 2 shows a section along the line II-II in FIG. 1.
  • the brush roller 5 which is mounted on the side walls of the housing 2 by means of lateral bearings 10, 10 ′.
  • the brush roller 5 is coupled to the turbine shaft 14 by the toothed belt 7.
  • the turbine shaft 14 projects into the turbine chamber 12, in which the air turbine 13 is fastened on the turbine shaft 14.
  • the turbine chamber 12 is separated by means of the partition 30 from the chamber in which the brush roller 5 is located and is delimited by side walls 17 and 18.
  • the air turbine 13 has a plurality of blades 23 arranged between the side walls 21, 22.
  • the inflow opening 20 is provided in the partition 30, which is designed as an aperture with a width b that corresponds at least approximately to the width B of the air turbine 13.
  • the diameter of the air turbine 13 is designated D and is, for example, between 45 mm and 75 mm.
  • the width B of the air turbine 13 is preferably in the range between 25 mm and 40 mm, a width B of 31 mm being taken as a basis for the following examples of the ratio D / B.
  • D diameter of 45 mm
  • D: B 1.452
  • D 55 mm
  • D 75 mm
  • D: B 2.419.
  • the turbine chamber 12 has an extension S of at least 35 mm in the axial direction of the air turbine 13, suitable dimensions of the width B of the air turbine 13 can be taken into account in the construction of the suction cleaning tool, taking into account other specifications, among also be determined with regard to the available space.
  • An eccentric arrangement of the air turbine 13 in the turbine chamber 12 is also possible, which will be discussed later in FIG. 4.
  • FIG. 3 shows the view of the partition 30 with the inflow opening 20 arranged therein in the form of the diaphragm.
  • the width of the aperture is denoted by b and the height of the aperture by h.
  • the height h is at least 7 mm, whereas the width b of the aperture is adapted to the width B of the air turbine.
  • Diaphragm cross sections between 180 mm 2 and 320 mm 2 have proven to be expedient.
  • FIG. 4 shows an axial section through a turbine housing 11, in which the turbine chamber 12 is formed, and with the air turbine 13 mounted therein.
  • the upper half of FIG. 4 shows the air turbine 13 in its position at full load, that is, at highest load requirement due to the brush roller driven by the air turbine 13, and the lower half of FIG.
  • the air turbine 13 essentially comprises the two radial side walls 21 and 22 which are supported by the turbine shaft 14. A plurality of turbine blades 23 are arranged between the side walls 21 and 22.
  • the turbine shaft 14 is non-positively connected to a drive shaft 15, at the end of which a toothed belt wheel 16 is provided, so that the power generated by the air turbine 13 can be transmitted to the brush roller via the toothed belt.
  • RA the axis of rotation of the turbine shaft 14 and drive shaft 15 is designated.
  • the drive shaft 15 is mounted on a lateral housing wall 17 of the turbine housing 11 by means of a bearing element 25.
  • a nozzle 29 which forms the inflow opening 20 for a suction air flow 28.
  • This inflow opening 20 is an orifice, the width of which is designated by b.
  • the suction air flow 28 acts on the air turbine 13 to drive it and leaves the turbine chamber 12 through the outflow opening 19.
  • a sleeve section 27 is provided which extends coaxially to the turbine shaft 14. This sleeve section 27 surrounds an axially fixed sleeve 26, which has two grooves 31 on its outer surface.
  • the air turbine 13 In normal operation of the suction tool and full load requirement of the brush roller, the air turbine 13 is in the axial position shown in the upper half of FIG. 4, so that the blades 23 of the air turbine 13 are acted upon by the entire suction air stream 28.
  • the load requirement of the brush roller decreases rapidly, and at the same time, the force of the tension spring 33 acts on the air turbine 13, so that an angular movement relative to the drive shaft 15 and the sleeve 26 connected to it in a rotationally fixed manner is carried out. This rotational angle movement is converted into an axial movement due to the projections 32 which engage in the grooves 31, so that the air turbine 13 is displaced by a specific axial stroke.
  • This position of the air turbine 13 is shown in the lower half of FIG. 4 and indicated by dashed lines in the upper half of FIG. 4.
  • Has. 5 shows an axial view of the through-flow turbine 13, the air flow through the turbine wheel being represented by the line LS.
  • the fluid flows through the blade ring of the roller-shaped impeller. First, the air flow enters from the outside, as shown in the area of the air turbine 13 indicated at the bottom left.
  • the air flow LS then traverses the interior of the impeller and then emerges from the impeller between the blades (approximately in the middle on the right-hand side in FIG. 5).
  • the blade ring is thus acted upon in two stages, that is to say the air flow transfers energy to the impeller both when the blade ring passes through the first time and when the blade ring passes through the second time.
  • the line LS in FIG. 5 indicates the absolute trajectory of an air particle through the air turbine 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne un outil de nettoyage aspirant destiné à un appareil de nettoyage aspirant. Cet outil comprend un tambour à brosse (5) rotatif qui est entraîné par une turbine à air (13). Cette turbine à air (13) est disposée dans une chambre de turbine (12) comportant un orifice d'entrée (20) et un orifice de sortie (19) par lesquels passe un courant d'air aspiré. Afin que cette turbine présente une petite taille par rapport à sa puissance, son diamètre (D) est plus grand que sa largeur (B) dans le sens axial. En outre, la chambre de turbine (12) est nettement plus longue dans le sens axial (S) que la largeur (B) de la turbine à air (13), de telle sorte que la turbine à air (13) peut être montée de façon à pouvoir se déplacer axialement.
PCT/EP1999/003785 1998-06-12 1999-06-01 Outil de nettoyage aspirant WO1999065376A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59907302T DE59907302D1 (de) 1998-06-12 1999-06-01 Saugreinigungswerkzeug
EP99927822A EP1085832B1 (fr) 1998-06-12 1999-06-01 Outil de nettoyage aspirant

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19826041A DE19826041C5 (de) 1998-06-12 1998-06-12 Saugreinigungswerkzeug
DE19826041.5 1998-06-12
DE19857629.3 1998-12-14
DE1998157629 DE19857629A1 (de) 1998-12-14 1998-12-14 Saugreinigungswerkzeug

Publications (1)

Publication Number Publication Date
WO1999065376A1 true WO1999065376A1 (fr) 1999-12-23

Family

ID=26046745

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/003785 WO1999065376A1 (fr) 1998-06-12 1999-06-01 Outil de nettoyage aspirant

Country Status (3)

Country Link
EP (1) EP1085832B1 (fr)
DE (1) DE59907302D1 (fr)
WO (1) WO1999065376A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1145677A1 (fr) * 2000-04-13 2001-10-17 Wessel-Werk Gmbh Buse d'aspiration pour aspirateur
WO2004028330A1 (fr) * 2002-09-24 2004-04-08 Dyson Technology Limited Tete de nettoyage d'aspirateur
WO2006133886A1 (fr) * 2005-06-14 2006-12-21 New Ermes Europe S.P.A. Suceur d'aspirateur hybride
WO2011107766A1 (fr) * 2010-03-04 2011-09-09 Dyson Technology Limited Tête d'aspirateur
US8533904B2 (en) 2009-10-30 2013-09-17 G.B.D. Corp. Surface cleaning head
US8567003B2 (en) 2010-03-04 2013-10-29 Dyson Technology Limited Vacuum cleaning appliance
US8739361B2 (en) 2010-03-04 2014-06-03 Dyson Technology Limited Vacuum cleaning head
US8966709B2 (en) 2012-08-13 2015-03-03 Dyson Technology Limited Cleaner head for a vacuum cleaner
USD922014S1 (en) 2018-09-18 2021-06-08 New Ermes S.r.l. Accessory for vacuum cleaners
US11224319B2 (en) 2017-12-11 2022-01-18 New Ermes Europe S.R.L. Base plate for a vacuum cleaner suction head for the suction of fine dust and large debris
USD953673S1 (en) 2020-02-17 2022-05-31 New Ermes Europe S.R.L. Head of a vacuum cleaner
US11564544B2 (en) 2020-01-28 2023-01-31 New Ermes Europe S.R.L. Adapter device for a cordless electric vacuum cleaner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306330A (en) * 1979-09-04 1981-12-22 Black & Decker Inc. Air-powered vacuum cleaner floor tool
JPH01221128A (ja) * 1988-02-29 1989-09-04 Matsushita Electric Ind Co Ltd 電気掃除機のタービンノズル
US5249333A (en) * 1991-02-21 1993-10-05 Firma Fedag Vacuum cleaning tool
US5293665A (en) * 1991-02-19 1994-03-15 Firma Fedag Nozzle mechanism for a vacuum cleaner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306330A (en) * 1979-09-04 1981-12-22 Black & Decker Inc. Air-powered vacuum cleaner floor tool
JPH01221128A (ja) * 1988-02-29 1989-09-04 Matsushita Electric Ind Co Ltd 電気掃除機のタービンノズル
US5293665A (en) * 1991-02-19 1994-03-15 Firma Fedag Nozzle mechanism for a vacuum cleaner
US5249333A (en) * 1991-02-21 1993-10-05 Firma Fedag Vacuum cleaning tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 536 (C - 660) 29 November 1989 (1989-11-29) *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1145677A1 (fr) * 2000-04-13 2001-10-17 Wessel-Werk Gmbh Buse d'aspiration pour aspirateur
WO2004028330A1 (fr) * 2002-09-24 2004-04-08 Dyson Technology Limited Tete de nettoyage d'aspirateur
AU2003269161B2 (en) * 2002-09-24 2007-06-14 Dyson Technology Limited A vacuum cleaning head
CN1852673B (zh) * 2002-09-24 2010-05-12 戴森技术有限公司 真空吸尘头
US7861368B2 (en) 2002-09-24 2011-01-04 Dyson Technology Limited Vacuum cleaning head
WO2006133886A1 (fr) * 2005-06-14 2006-12-21 New Ermes Europe S.P.A. Suceur d'aspirateur hybride
US7765638B2 (en) 2005-06-14 2010-08-03 New Ermes Europe S.P.A. Hybrid vacuum cleaner nozzle
AU2006257390B2 (en) * 2005-06-14 2011-02-03 New Ermes Europe S.P.A. Hybrid vacuum cleaner nozzle
CN101262804B (zh) * 2005-06-14 2011-05-11 新埃莫斯欧洲股份公司 混合式真空吸尘器喷嘴
US8533904B2 (en) 2009-10-30 2013-09-17 G.B.D. Corp. Surface cleaning head
WO2011107766A1 (fr) * 2010-03-04 2011-09-09 Dyson Technology Limited Tête d'aspirateur
US8567003B2 (en) 2010-03-04 2013-10-29 Dyson Technology Limited Vacuum cleaning appliance
AU2011222698B2 (en) * 2010-03-04 2014-04-10 Dyson Technology Limited A vacuum cleaning head
US8732902B2 (en) 2010-03-04 2014-05-27 Dyson Technology Limited Vacuum cleaning head
US8739361B2 (en) 2010-03-04 2014-06-03 Dyson Technology Limited Vacuum cleaning head
US8966709B2 (en) 2012-08-13 2015-03-03 Dyson Technology Limited Cleaner head for a vacuum cleaner
US11224319B2 (en) 2017-12-11 2022-01-18 New Ermes Europe S.R.L. Base plate for a vacuum cleaner suction head for the suction of fine dust and large debris
USD922014S1 (en) 2018-09-18 2021-06-08 New Ermes S.r.l. Accessory for vacuum cleaners
US11564544B2 (en) 2020-01-28 2023-01-31 New Ermes Europe S.R.L. Adapter device for a cordless electric vacuum cleaner
USD953673S1 (en) 2020-02-17 2022-05-31 New Ermes Europe S.R.L. Head of a vacuum cleaner

Also Published As

Publication number Publication date
EP1085832B1 (fr) 2003-10-08
EP1085832A1 (fr) 2001-03-28
DE59907302D1 (de) 2003-11-13

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