EP1085832A1 - Saugreinigungswerkzeug - Google Patents
SaugreinigungswerkzeugInfo
- Publication number
- EP1085832A1 EP1085832A1 EP99927822A EP99927822A EP1085832A1 EP 1085832 A1 EP1085832 A1 EP 1085832A1 EP 99927822 A EP99927822 A EP 99927822A EP 99927822 A EP99927822 A EP 99927822A EP 1085832 A1 EP1085832 A1 EP 1085832A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- air turbine
- air
- cleaning tool
- 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.)
- Granted
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
Description
Claims
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 (de) | 1998-06-12 | 1999-06-01 | Saugreinigungswerkzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1085832A1 true EP1085832A1 (de) | 2001-03-28 |
EP1085832B1 EP1085832B1 (de) | 2003-10-08 |
Family
ID=26046745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99927822A Revoked EP1085832B1 (de) | 1998-06-12 | 1999-06-01 | Saugreinigungswerkzeug |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1085832B1 (de) |
DE (1) | DE59907302D1 (de) |
WO (1) | WO1999065376A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1145677B1 (de) * | 2000-04-13 | 2001-11-14 | Wessel-Werk Gmbh | Saugreinigungsgerät für Haushaltssauger |
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 (en) | 2009-10-30 | 2011-04-30 | G.B.D. Corp. | Surface cleaning head |
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 (de) | 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)
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 |
-
1999
- 1999-06-01 WO PCT/EP1999/003785 patent/WO1999065376A1/de not_active Application Discontinuation
- 1999-06-01 EP EP99927822A patent/EP1085832B1/de not_active Revoked
- 1999-06-01 DE DE59907302T patent/DE59907302D1/de not_active Revoked
Non-Patent Citations (1)
Title |
---|
See references of WO9965376A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59907302D1 (de) | 2003-11-13 |
WO1999065376A1 (de) | 1999-12-23 |
EP1085832B1 (de) | 2003-10-08 |
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