EP1085832B1 - Outil de nettoyage aspirant - Google Patents

Outil de nettoyage aspirant Download PDF

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Publication number
EP1085832B1
EP1085832B1 EP99927822A EP99927822A EP1085832B1 EP 1085832 B1 EP1085832 B1 EP 1085832B1 EP 99927822 A EP99927822 A EP 99927822A EP 99927822 A EP99927822 A EP 99927822A EP 1085832 B1 EP1085832 B1 EP 1085832B1
Authority
EP
European Patent Office
Prior art keywords
turbine
air turbine
cleaning tool
air
suction cleaning
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.)
Revoked
Application number
EP99927822A
Other languages
German (de)
English (en)
Other versions
EP1085832A1 (fr
Inventor
Peter Wörwag
Edgar Melzner
Jürgen Jonischus
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.)
Duepro AG
Original Assignee
Duepro 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=EP1085832(B1) "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 Duepro AG filed Critical Duepro AG
Publication of EP1085832A1 publication Critical patent/EP1085832A1/fr
Application granted granted Critical
Publication of EP1085832B1 publication Critical patent/EP1085832B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • 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 specified in the preamble of claim 1 Genus.
  • Suction cleaning tools typically include a housing with a connection piece for an air flow connection with the suction unit of a suction cleaning device and a rotatably mounted in the housing near its suction opening Brush roller.
  • the bristles of the brush roller protrude into her lower layer through the suction opening to the outside and allow so the processing of the surface to be vacuumed.
  • An air turbine is often used to drive the brush roller is acted upon by the suction air flow. Air turbines are due the simple structure often in central suction systems and used in devices for commercial cleaning, because such suction devices have powerful fans.
  • a suction cleaning tool is known from US Pat. No. 5,293,665, whose housing has a flat and wide design.
  • this housing there is an air turbine for driving a cleaning brush arranged by the intake air flow is driven.
  • the tangential air turbine is divided in two in its axial direction and between stored in the middle of the two parts. In their entirety the air turbine has a relatively small diameter / width ratio on what limits their efficiency is.
  • Another suction cleaning tool is from JP-A-01221128 known, the tangential air turbine for Drive of a brush tool axially against a compression spring is movable.
  • the front of the air turbine has four propeller-like air blades that speed-dependent the necessary to move the air turbine against the spring force generate axial force. This allows the air turbine in the axial direction as far from what drives it Airflow is pushed out that reaching one excessive speed is prevented. Due to the speed-dependent
  • the air turbine is subject to the effects of axial blading and thus the connected brush roller inside of the working speed range depending on the load on the Brush roller high and undesirable speed fluctuations.
  • the present invention is based on the object Suction cleaning tool in the preamble of claim 1 to create specified genus in which the turbine, related on performance, has a small size.
  • the air turbine is a known one compared to previously Arrangements less weight and a reduced use of materials having.
  • 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 reached.
  • Air turbines have proven to be particularly advantageous where the ratio of diameter to width is larger 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, the aperture width of which 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 .
  • the turbine chamber a much greater extension in the axial direction has as the width of the air turbine, wherein preferably the extension at least about twice the width is.
  • the much larger extension of the Offers turbine chamber in the axial direction of the air turbine the advantage that the air turbine within the turbine chamber is axially displaceable, so that, if necessary, by the respective position of the air turbine with respect to the inflow opening the power and also the speed can be varied can.
  • the air turbine is preferably in the turbine chamber arranged off-center.
  • the air turbine is preferred formed as a flow turbine, so that a Air flow is applied in two stages.
  • FIG. 1 is a schematic representation of a longitudinal section shown by a suction cleaning tool 1 that in a housing 2 a front area 3 with a suction opening 4 and in a central section 8 a turbine chamber 12 with an air turbine 13.
  • the air turbine 13 is used to drive a brush roller 5, the bristles 6 project through the suction opening 4 in their lower position, to work on the surface to be vacuumed.
  • the brush roller 5 is by means of a toothed belt 7 with the air turbine 13 coupled.
  • the air turbine 13 is powered by a suction air stream 24 acted upon by a not shown, generated at a suction port 9 connected suction unit and arranged in a partition 30 Inflow opening 20 enters the turbine chamber 12.
  • the turbine chamber 12 has in the longitudinal direction, that is in Working direction of the suction cleaning tool 1 a length L, which is between 55 mm and 95 mm, for example.
  • 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 Located in the front area 3 of the housing 2 the brush roller 5, which by means of lateral bearings 10, 10 'is mounted on the side walls of the housing 2.
  • the Brush roller 5 is through the toothed belt 7 with the turbine shaft 14 coupled.
  • the turbine shaft 14 projects into the turbine chamber 12, in which the air turbine 13 on the turbine shaft 14 is attached.
  • the turbine chamber 12 is by means of the partition 30 from the chamber in which the brush roller 5 is located, divided and by side walls 17 and 18 limited.
  • the air turbine 13 has a variety of between the blades 23 arranged on the side walls 21, 22 on. Before the air turbine 13 is in the partition 30 Inflow opening 20 provided as an aperture with a Width b is executed, which is at least approximately Width B of the air turbine 13 corresponds.
  • the diameter of the air turbine 13 is denoted by D and is, for example, between 45 mm and 75 mm.
  • the turbine chamber 12 has the axial direction of the air turbine 13 an extension S of at least 35 mm, suitable Dimensions of the width B of the air turbine 13 can Construction of the suction cleaning tool under consideration other requirements also regarding the available standing space. It is also an off-center arrangement of the air turbine 13 in the turbine chamber 12 possible, which will be discussed later in FIG. 4 becomes.
  • FIG. 3 shows the view of the partition wall 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 screen is adapted to the width B of the air turbine.
  • Aperture 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 stored therein 4 the air turbine 13 in its position at full load, i.e. with the highest load requirement by the brush roller driven by the air turbine 13, and the lower half of Fig. 4 the position of the Air turbine 13 at idle, that is, with a minimal load requirement the brush roller.
  • the air turbine 13 includes essentially the two radial side walls 21 and 22 that are carried by the turbine shaft 14. Between the side walls 21 and 22 is a variety of turbine blades 23 arranged.
  • the turbine shaft 14 is non-positively connected connected to a drive shaft 15, at the end of a toothed belt wheel 16 is provided so that from the air turbine 13 generated power on the toothed belt on the brush roller can be transferred.
  • RA is the axis of rotation the turbine shaft 14 and drive shaft 15.
  • the drive shaft 15 is on a side housing wall 17 of the turbine housing 11 is supported by means of a bearing element 25. Located in the partition 30 of the turbine housing 11 there is a nozzle 29 which the inflow opening 20 for a Suction air flow 28 forms.
  • This inflow opening 20 is one Aperture, the width of which is indicated by b.
  • the suction air flow 28 acts on the air turbine 13 in order to drive it, and leaves the turbine chamber 12 through the outflow opening 19.
  • a sleeve section 27 On the drive shaft 15 facing Side wall 21 of the air turbine 13 is a sleeve section 27 provided that extends coaxially to the turbine shaft 14. This sleeve section 27 surrounds an axially fixed Sleeve 26, the two grooves 31 having.
  • tension spring 33 which is on the one hand on the side wall 21 of the air turbine 13 and on the other hand is supported on a radial shoulder 34 of the sleeve 26. This tension spring 33 is used to generate a return movement, around the air turbine 13 when the load on the Brush roller in the lower half of Fig. 4th to bring the position shown.
  • FIG. 5 shows an axial view of the flow-through turbine 13, with the line LS the air flow through the turbine wheel is shown.
  • the fluid flows through the blade ring of the roller-shaped Impeller.
  • the air flow LS crosses the Interior of the impeller and then occurs between the blades from the impeller (approximately in the middle on the right Page in Fig. 5).
  • the Bucket ring in two stages, that is, the air flow transmits both at the first passage of the blade ring as well as energy at the second passage of the blade ring on the impeller.
  • the line LS in Fig. 5 gives the absolute Path of an air particle through the air turbine 13.

Landscapes

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

Claims (11)

  1. Outil de nettoyage aspirant (1) pour un appareil de nettoyage aspirant, avec un rouleau-brosse rotatif (5) et une turbine pneumatique (13) pour entraíner le rouleau-brosse (5), dans lequel la turbine pneumatique (13) est montée dans une chambre à turbine (12) avec une ouverture d'admission (20) et une ouverture d'évacuation (19) pour le flux d'air d'aspiration (28), la turbine pneumatique (13) possédant un diamètre (D) qui est plus grand que sa largeur (B) dans le sens axial, caractérisé en ce que le rapport du diamètre (D) de la turbine pneumatique (13) sur sa largeur est de 1,3 à 2,5.
  2. Outil de nettoyage aspirant selon la revendication 1,caractérisé en ce que la largeur (B) de la turbine pneumatique (13) est de 25 mm à 40 mm.
  3. Outil de nettoyage aspirant selon la revendication 1 ou la revendication 2,caractérisé en ce que le diamètre (D) de la turbine pneumatique (13) est de 45 mm à 75 mm.
  4. Outil de nettoyage aspirant selon une des revendications 1 à 3,caractérisé en ce que la hauteur (H) de la chambre à turbine (12) est de 50 mm à 90 mm.
  5. Outil de nettoyage aspirant selon une des revendications 1 à 4,caractérisé en ce que la chambre à turbine (12) possède une longueur (L) de 55 mm à 95 mm.
  6. Outil de nettoyage aspirant selon une des revendications 1 à 5,caractérisé en ce que l'ouverture d'admission (20) est conformée comme un cadre dont la largeur de cadre (b) correspond à la largeur (B) de la turbine pneumatique (13).
  7. Outil de nettoyage aspirant selon la revendication 6,caractérisé en ce que le cadre possède une hauteur (h) d'au moins 7 mm.
  8. Outil de nettoyage aspirant selon une des revendications 6 ou 7,caractérisé en ce que la section du cadre est de 180 mm2 à 320 mm2.
  9. Outil de nettoyage aspirant selon une des revendications 1 à 8,caractérisé en ce que la chambre à turbine (12) possède dans le sens axial (S) une extension notablement supérieure à la largeur (B) de la turbine pneumatique (13) et que la turbine pneumatique (13) est coulissante axialement.
  10. Outil de nettoyage aspirant selon la revendication 9,caractérisé en ce que la turbine pneumatique (13) est disposée de manière excentrée dans la chambre à turbine (12).
  11. Outil de nettoyage aspirant selon une des revendications 1 à 10, caractérisé en ce que la turbine pneumatique (13) est conformée comme une turbine à impulsion radiale.
EP99927822A 1998-06-12 1999-06-01 Outil de nettoyage aspirant Revoked EP1085832B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19826041A DE19826041C5 (de) 1998-06-12 1998-06-12 Saugreinigungswerkzeug
DE19826041 1998-06-12
DE19857629 1998-12-14
DE1998157629 DE19857629A1 (de) 1998-12-14 1998-12-14 Saugreinigungswerkzeug
PCT/EP1999/003785 WO1999065376A1 (fr) 1998-06-12 1999-06-01 Outil de nettoyage aspirant

Publications (2)

Publication Number Publication Date
EP1085832A1 EP1085832A1 (fr) 2001-03-28
EP1085832B1 true EP1085832B1 (fr) 2003-10-08

Family

ID=26046745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99927822A Revoked EP1085832B1 (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)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1145677B1 (fr) * 2000-04-13 2001-11-14 Wessel-Werk Gmbh Buse d'aspiration pour aspirateur
GB2393383B (en) * 2002-09-24 2005-12-28 Dyson Ltd A vacuum cleaning head
ITMO20050151A1 (it) 2005-06-14 2006-12-15 Pineschi Massimiliano Dispositivo per aspirapolvere.
CA2684168A1 (fr) 2009-10-30 2011-04-30 G.B.D. Corp. Tete de nettoyage des surfaces
GB201003601D0 (en) 2010-03-04 2010-04-21 Dyson Technology Ltd A vacuum cleaning appliance
GB201003604D0 (en) 2010-03-04 2010-04-21 Dyson Technology Ltd A vacuum cleaning head
GB201003603D0 (en) * 2010-03-04 2010-04-21 Dyson Technology Ltd A vacuum cleaning head
GB2504940B (en) 2012-08-13 2014-12-24 Dyson Technology Ltd 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
JP1641037S (fr) 2018-09-18 2019-09-09
IT202000001555A1 (it) 2020-01-28 2021-07-28 New Ermes Europe Srl Dispositivo adattatore per aspirapolvere elettrico senza filo
USD953673S1 (en) 2020-02-17 2022-05-31 New Ermes Europe S.R.L. Head of a vacuum cleaner

Family Cites Families (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
DE4105012C2 (de) * 1991-02-19 1994-09-29 Fedag Romanshorn Fa Staubsaugermundstück
DE4105336C2 (de) * 1991-02-21 1994-08-25 Fedag Romanshorn Fa Saugreinigungswerkzeug

Also Published As

Publication number Publication date
DE59907302D1 (de) 2003-11-13
WO1999065376A1 (fr) 1999-12-23
EP1085832A1 (fr) 2001-03-28

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