EP1145677A1 - Suction nozzle for vacuum cleaner - Google Patents
Suction nozzle for vacuum cleaner Download PDFInfo
- Publication number
- EP1145677A1 EP1145677A1 EP00108121A EP00108121A EP1145677A1 EP 1145677 A1 EP1145677 A1 EP 1145677A1 EP 00108121 A EP00108121 A EP 00108121A EP 00108121 A EP00108121 A EP 00108121A EP 1145677 A1 EP1145677 A1 EP 1145677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- suction
- roller
- cleaning device
- chamber
- 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
- 239000004753 textile Substances 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 8
- 238000010407 vacuum cleaning Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
Definitions
- a suction cleaning device of the construction described is off EP-B 0 338 780 known.
- the roller is equipped from flexible lips. Because of the better cleaning effect become bristle-shaped cutlery in practice prefers.
- a suction cleaning device is known, the a Pelton turbine driven by the suction air flow and a roller driven by the Pelton turbine with bristle-shaped Has cutlery.
- the bristles of the rollers extends through the one arranged on the underside of the roller chamber Suction mouth.
- the turbine is as Pelton wheel trained.
- Other versions such as those for Example from DE-C 41 05 336 are known, have as Cross-flow turbine trained turbine wheel with a open blading on the inside.
- the cross-flow turbine is flowed essentially radially.
- the air enters radially the one in the center of the ring-shaped blading Interior of the turbine wheel and radially exits the interior.
- the cross-flow turbine has one favorable efficiency, but is proportional due to the design prone to dirt and loud. Small parts, for example Paper, paper clips, woolen threads and the like can cause interference at the cross-flow turbine.
- the Turbine should work quietly, with a low pressure drop cause the suction air flow and at a high Turbine efficiency a favorable turbine efficiency exhibit.
- the brush roller must be on the turbine unit be coordinated with both low-pile and Suction cleaning is also effective for deep-pile carpets support.
- the vacuum cleaner be able to hold small parts, such as paper clips, Absorb paper scraps and threads without a malfunction is to be feared.
- the well-known suction cleaning devices still meet all of these requirements not to the extent desired.
- the invention has for its object a low-noise, to specify powerful suction cleaning device with which can easily be vacuumed even small parts.
- the vacuum cleaner for a powerful Vacuum cleaner which has a large volume flow and Suction mouth creates a large vacuum
- the bristles are cut within the characteristic 1.1) specified parameter range slightly on the Underside of the suction mouth protrudes.
- the above bristle fulfills an additional support function on the ground.
- the bristles are not on the bottom of the suction mouth.
- Compliance with the characteristic 1.2) is essential for effective removal the dirt particles carried in the air flow. Will the The removal value falls below the limit value according to the invention the dirt particles from air turbulence and superimposed Currents from the rotating bristle roller generated, disturbed. Is essential finally, compliance with feature 1.3).
- the volume ratio is preferably the turbine chamber to that of the material the volume occupied by the turbine in the range from 6: 1 to 8.5: 1. It is also advantageous if the turbine is in the Essentially over the entire width of the preferred cylindrical turbine chamber extends.
- Suction cleaning device is characterized by exceptional good suction properties combined with a low Noise development.
- the properties are the result a clever combination of features. Already that Modification of a single characteristic worsens it Result clear. So the effects described are in a complex interrelation.
- tuning can be the suction properties still optimize. So should the passage to the turbine chamber a rectangular exit cross-section with a width of 10 to 18 millimeters and a height of 14 up to 18 millimeters.
- the distance between the axes of rotation the roller and the turbine is expediently 70 up to 90 millimeters.
- the suction properties of the vacuum cleaning device can also be influenced favorably if the roller is arranged off-center to the suction mouth.
- Suction cleaning device include a suction head 1, the one has suction mouth delimited on the bottom by suction mouth edges 2, a turbine 3 in driven by the suction air flow a turbine chamber 4 of the suction head, one helical roller 6 with bristles 5, which is in a roller chamber 7 of the suction head 1 and driven by the turbine 3 is, the roller chamber 7 with the turbine chamber 4 connecting passage 8 and a to the turbine chamber 4th Exhaust duct 9 connected in a tiltable manner with a connecting piece 10 for a suction pipe.
- the turbine 3 is as Pelton wheel formed and essentially tangential from the suction air stream emerging from the passage 8 flows against.
- Bushings and mutually movable parts of the in the suction cleaning device shown in the figures are useful sealed in such a way that the following industry standard test procedures a pressure drop from 65 to 80 mbar.
- Vacuum connected which is operated so that it when the suction port is closed, a pressure reduction against Atmospheric pressure of 100 mbar generated.
- the so set The vacuum cleaner is then connected to the vacuum cleaning device to be tested connected, its suction mouth sealed with a film is taped.
- the one on the suction side of the suction cup Pressure is measured.
- the suction cleaning device meets the requirement of the invention when there is a pressure drop of at least 60 mbar, preferably from 60 to 90 mbar, set against atmospheric pressure.
- the suction cleaning device with the parameter adjustment according to the invention is characterized by exceptionally good Suction properties in connection with a low noise level out.
Abstract
Description
Die Erfindung betrifft ein Saugreinigungsgerät für Haushaltssauger
mit
Ein Saugreinigungsgerät des beschriebenen Aufbaus ist aus EP-B 0 338 780 bekannt. Die Besteckung der Walze besteht aus flexiblen Lippen. Aufgrund des besseren Reinigungseffektes werden in der Praxis borstenförmige Besteckungen bevorzugt. A suction cleaning device of the construction described is off EP-B 0 338 780 known. The roller is equipped from flexible lips. Because of the better cleaning effect become bristle-shaped cutlery in practice prefers.
Aus DE-A 40 00 374 ist ein Saugreinigungsgerät bekannt, das eine vom Saugluftstrom angetriebene Peltonturbine sowie eine von der Peltonturbine antreibbare Walze mit borstenförmiger Besteckung aufweist. Die Beborstung der Walzen durchragt den an der Unterseite der Walzenkammer angeordneten Saugmund.From DE-A 40 00 374 a suction cleaning device is known, the a Pelton turbine driven by the suction air flow and a roller driven by the Pelton turbine with bristle-shaped Has cutlery. The bristles of the rollers extends through the one arranged on the underside of the roller chamber Suction mouth.
In den zuvor beschriebenen Ausführungen ist die Turbine als Peltonrad ausgebildet. Andere Ausführungen, wie sie zum Beispiel aus DE-C 41 05 336 bekannt sind, weisen ein als Querstromturbine ausgebildetes Turbinenrad mit einer nach innen offenen Beschaufelung auf. Die Querstromturbine ist im Wesentlichen radial angeströmt. Die Luft tritt radial in den im Zentrum der kranzförmigen Beschaufelung liegenden Innenraum des Turbinenrades ein und tritt radial wieder aus dem Innenraum aus. Die Querstromturbine besitzt zwar einen günstigen Wirkungsgrad, ist aber bauartbedingt verhältnismäßig schmutzanfällig und laut. Kleinteile, zum Beispiel Papier, Büroklammern Wollfäden und dergleichen können Störungen an der Querstromturbine verursachen.In the previously described designs, the turbine is as Pelton wheel trained. Other versions, such as those for Example from DE-C 41 05 336 are known, have as Cross-flow turbine trained turbine wheel with a open blading on the inside. The cross-flow turbine is flowed essentially radially. The air enters radially the one in the center of the ring-shaped blading Interior of the turbine wheel and radially exits the interior. The cross-flow turbine has one favorable efficiency, but is proportional due to the design prone to dirt and loud. Small parts, for example Paper, paper clips, woolen threads and the like can cause interference at the cross-flow turbine.
An ein Saugreinigungsgerät, das eine vom Saugluftstrom angetriebene Turbine zum Antrieb einer Reinigungswalze aufweist, werden eine Vielzahl von Anforderungen gestellt. Die Turbine soll geräuscharm arbeiten, einen geringen Druckverlust des Saugluftstromes verursachen und bei einer hohen Turbinennutzleistung einen günstigen Turbinenwirkungsgrad aufweisen. Ferner muss die Bürstenwalze auf das Turbinenaggregat abgestimmt sein und sowohl bei niederflorigen als auch bei hochflorigen Teppichbelägen die Saugreinigung wirkungsvoll unterstützen. Schließlich muss das Saugreinigungsgerät in der Lage sein, Kleinteile, zum Beispiel Büroklammern, Papierschnitzel und Fäden aufzusaugen, ohne dass eine Betriebsstörung zu befürchten ist. Die bekannten Saugreinigungsgeräte erfüllen all diese Anforderungen noch nicht im gewünschten Umfang.To a suction cleaning device that is powered by the suction air flow Turbine for driving a cleaning roller, there are a variety of requirements. The Turbine should work quietly, with a low pressure drop cause the suction air flow and at a high Turbine efficiency a favorable turbine efficiency exhibit. Furthermore, the brush roller must be on the turbine unit be coordinated with both low-pile and Suction cleaning is also effective for deep-pile carpets support. Finally, the vacuum cleaner be able to hold small parts, such as paper clips, Absorb paper scraps and threads without a malfunction is to be feared. The well-known suction cleaning devices still meet all of these requirements not to the extent desired.
Der Erfindung liegt die Aufgabe zugrunde, ein geräuscharmes, leistungsstarkes Saugreinigungsgerät anzugeben, mit dem problemlos auch Kleinteile aufgesaugt werden können.The invention has for its object a low-noise, to specify powerful suction cleaning device with which can easily be vacuumed even small parts.
Ausgehend von einem Saugreinigungsgerät des eingangs beschriebenen
Aufbaus wird die Erfindung durch die folgende
Abstimmung der Bauteile gelöst:
Wenn das Saugreinigungsgerät für einen leistungsstarken Sauger angelegt wird, der einen großen Volumenstrom und im Saugmund einen großen Unterdruck erzeugt, ist es günstig, wenn die Besteckung der Borsten im Rahmen des in Merkmal 1.1) angegebenen Parameterbereiches geringfügig an der Unterseite des Saugmundes vorsteht. Die vorstehende Beborstung erfüllt eine zusätzliche Abstützfunktion am Boden. Bei Anschluss eines leistungsschwächeren Saugers erweist es sich als günstiger, wenn die Beborstung nicht an der Unterseite des Saugmundes vortritt. Die Einhaltung des Merkmals 1.2) ist wesentlich für einen wirkungsvollen Abtransport der im Luftstrom mitgeführten Schmutzpartikel. Wird der erfindungsgemäße Grenzwert unterschritten, wird der Abtransport der Schmutzpartikel von Luftturbulenzen und überlagerten Strömungen, die von der umlaufenden Borstenwalze erzeugt werden, gestört. Von wesentlicher Bedeutung ist schließlich auch die Einhaltung des Merkmals 1.3). Ein großes Verhältnis des Turbinenkammervolumens bezogen auf das von dem Material der Turbine eingeschlossene Volumen begünstigt die Durchströmung der Turbinenkammer und den Abtransport von Schmutzpartikeln im Saugluftstrom. Andererseits sinkt mit zunehmendem Volumenverhältnis die bei der Durchströmung der Turbinenkammer an die Turbine übertragene Leistung. Wird die Turbinenkammer im Verhältnis zur Turbine verhältnismäßig klein ausgebildet, begünstigt dies den Antrieb der Turbine, wirkt sich andererseits nachteilig auf den Schmutzabtransport aus. Vorzugsweise liegt das Volumenverhältnis der Turbinenkammer zu dem von dem Material der Turbine eingenommenen Volumen im Bereich von 6:1 bis 8,5:1. Vorteilhaft ist es ferner, wenn die Turbine sich im Wesentlichen über die gesamte Breite der vorzugsweise zylindrischen Turbinenkammer erstreckt.If the vacuum cleaner for a powerful Vacuum cleaner is created, which has a large volume flow and Suction mouth creates a large vacuum, it is beneficial if the bristles are cut within the characteristic 1.1) specified parameter range slightly on the Underside of the suction mouth protrudes. The above bristle fulfills an additional support function on the ground. When connecting a less powerful vacuum it proves turn out to be cheaper if the bristles are not on the bottom of the suction mouth. Compliance with the characteristic 1.2) is essential for effective removal the dirt particles carried in the air flow. Will the The removal value falls below the limit value according to the invention the dirt particles from air turbulence and superimposed Currents from the rotating bristle roller generated, disturbed. Is essential finally, compliance with feature 1.3). On large ratio of the turbine chamber volume based on the volume enclosed by the material of the turbine favors the flow through the turbine chamber and the Removal of dirt particles in the suction air flow. On the other hand decreases with increasing volume ratio the flow through the turbine chamber transmitted to the turbine Power. If the turbine chamber is in relation to Turbine relatively small, this favors the drive of the turbine, on the other hand, has an adverse effect on the removal of dirt. The volume ratio is preferably the turbine chamber to that of the material the volume occupied by the turbine in the range from 6: 1 to 8.5: 1. It is also advantageous if the turbine is in the Essentially over the entire width of the preferred cylindrical turbine chamber extends.
Das entsprechend der erfindungsgemäßen Lehre ausgebildete Saugreinigungsgerät zeichnet sich durch außergewöhnlich gute Saugeigenschaften in Verbindung mit einer geringen Geräuschentwicklung aus. Die Eigenschaften sind das Ergebnis einer geschickten Kombination von Merkmalen. Schon die Abänderung eines einzelnen Merkmals verschlechtert das Ergebnis deutlich. So stehen die beschriebenen Wirkungen in einer komplexen Wechselbeziehung. Durch die nachfolgend beschriebenen Abstimmungen lassen sich die Saugeigenschaften noch optimieren. So sollte der Durchlass zu der Turbinenkammer einen rechteckförmigen Austrittsquerschnitt mit einer Breite von 10 bis 18 Millimeter und einer Höhe von 14 bis 18 Millimeter aufweisen. Der Abstand zwischen den Rotationsachsen der Walze und der Turbine beträgt zweckmäßig 70 bis 90 Millimeter. Die Saugeigenschaften des Saugreinigungsgerätes lassen sich ferner günstig beeinflussen, wenn die Walze außermittig zum Saugmund angeordnet wird.The trained according to the teaching of the invention Suction cleaning device is characterized by exceptional good suction properties combined with a low Noise development. The properties are the result a clever combination of features. Already that Modification of a single characteristic worsens it Result clear. So the effects described are in a complex interrelation. Through the following described tuning can be the suction properties still optimize. So should the passage to the turbine chamber a rectangular exit cross-section with a width of 10 to 18 millimeters and a height of 14 up to 18 millimeters. The distance between the axes of rotation the roller and the turbine is expediently 70 up to 90 millimeters. The suction properties of the vacuum cleaning device can also be influenced favorably if the roller is arranged off-center to the suction mouth.
An Durchführungen und in Spalten zwischen gegeneinander beweglichen Teilen tritt während des Saugbetriebes Falschluft in das Saugreinigungsgerät ein. Die Durchführungen und gegeneinander beweglichen Teile sind erfindungsgemäß zweckmäßig so abgedichtet, dass sich bei Anschluss eines handelsüblichen Saugers, der bei verschlossenem Saugstutzen eine Druckabsenkung gegen Atmosphärendruck von 100 mbar erzeugt, eine Druckabsenkung von mindestens 60 mbar einstellt, wenn das Saugreinigungsgerät mit einem durch Abklebung verschlossenen Saugmund an den Sauger angeschlossen wird. Als besonders günstig erweist es sich, wenn sich unter den beschriebenen Testbedingungen eine Druckabsenkung von 60 bis 90 mbar einstellt. Bei einer zu weitgehenden Abdichtung besteht die Gefahr, dass das Saugreinigungsgerät sich an hochflorigen Teppichböden festsaugt. Um diese Gefahr zu beseitigen, müssen Kompromisse an anderer Stelle eingegangen werden. Aus diesem Grund ist auch die Fehlluft in geeigneter kombinatorischer Weise auf die übrigen Parameter des Saugreinigungsgerätes abzustimmen.On bushings and in gaps between each other moving parts leak air occurs during suction operation into the vacuum cleaning device. The implementations and mutually movable parts are useful according to the invention sealed so that when a commercially available Vacuum cleaner, which is closed with the suction nozzle a pressure drop against atmospheric pressure of 100 mbar generated, a pressure drop of at least 60 mbar is set, if the suction cleaning device with a by taping closed suction mouth connected to the vacuum cleaner becomes. It proves to be particularly favorable if a pressure drop under the test conditions described from 60 to 90 mbar. If the seal is too extensive there is a risk that the suction cleaning device stuck to deep-pile carpets. About this danger Eliminate compromises elsewhere To be received. For this reason, there is also bad air in a suitable combinatorial manner on the other parameters of the suction cleaning device.
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen schematisch:
- Fig. 1
- die Draufsicht eines erfindungsgemäßen Saugrei- nigungsgerätes bei abgenommenem Gehäuseoberteil,
- Fig. 2
- einen Längsschnitt I-I aus Fig. 1.
- Fig. 3
- einen Ausschnitt aus Fig. 2 in einer gegenüber Fig. 2 stark vergrößerten Darstellung.
- Fig. 1
- the top view of a suction cleaning device according to the invention with the upper housing part removed,
- Fig. 2
- 2 shows a longitudinal section II from FIG. 1.
- Fig. 3
- a section of FIG. 2 in a greatly enlarged representation compared to FIG. 2.
Zum grundsätzlichen Aufbau des in den Figuren dargestellten
Saugreinigungsgerätes gehören ein Saugkopf 1, der einen
bodenseitigen von Saugmundkanten 2 begrenzten Saugmund aufweist,
eine vom Saugluftstrom angetriebene Turbine 3 in
einer Turbinenkammer 4 des Saugkopfes, eine wendelförmig
mit Borsten 5 besteckte Walze 6, die in einer Walzenkammer
7 des Saugkopfes 1 angeordnet und von der Turbine 3 angetrieben
ist, ein die Walzenkammer 7 mit der Turbinenkammer
4 verbindender Durchlass 8 und ein an die Turbinenkammer 4
kippbeweglich angeschlossener Auslasskanal 9 mit einem Anschlussstutzen
10 für ein Saugrohr. Die Turbine 3 ist als
Peltonrad ausgebildet und im Wesentlichen tangential von
dem aus dem Durchlass 8 austretenden Saugluftstrom angeströmt.The basic structure of that shown in the figures
Suction cleaning device include a suction head 1, the one
has suction mouth delimited on the bottom by suction mouth edges 2,
a
Das Saugreinigungsgerät weist erfindungsgemäß folgende Abstimmung auf:
Die borstenförmige Besteckung 5der Walze 6 liegt in einem von zwei konzentrischen, kreisförmigen Hüllkurven a, b definierten Bereich, wobei die kleinere Hüllkurve a im Bereich des Saugmundes einen Abstand von einem Millimeter zur Ebene c der auf einem zu reinigenden textilen Belag gleitenden Saugmundkanten 2 aufweist und wobei die Hüllkurve b mit dem größeren Durchmesser dieEbene der Saugmundkanten 2 im Bereich des Saugmundes schneidet und um zwei Millimeter unterseitig vorsteht (Fig. 3).- Der Abstand s der den
Durchlass zur Turbinenkammer 4 enthaltenden Trennwand der Walzenkammer zuden Borsten 5 der rotierenden Walze 6 beträgt an der engsten Stelle mindestens acht Millimeter (Fig. 2). - Das Volumen der zylindrischen Turbinenkammer 4 und das
von dem
Material der Turbine 3 eingenommene Volumen stehen in einem Verhältnis von 5:1 bis 13:1, vorzugsweise in einem Bereich von 6:1bis 8,5:1. Dabei weistdie Turbine 3 einen Durchmesser von 45 bis 60 Millimeter sowie eine Länge von mehr als 40 Millimeter auf und erstreckt sich um Wesentlichen über die gesamte Breite derTurbinenkammer 4. Der Durchlass 8 zu der Turbinenkammer 4 weist einen rechteckförmigen Austrittsquerschnitt mit einerBreite von 10 bis 18 Millimeter und einer Höhe von 14 bis 18 Millimeter auf (Fig. 1 und 2).- Der Abstand L zwischen den Rotationsachsen der Walze und der Turbine beträgt 70 bis 90 Millimeter (Fig. 2).
- The bristle-shaped
cutlery 5 of theroller 6 lies in a region defined by two concentric, circular envelopes a, b, the smaller envelope a in the region of the suction mouth being a distance of one millimeter from the plane c of the suction mouth edges 2 sliding on a textile covering to be cleaned and wherein the envelope curve b with the larger diameter intersects the plane of the suction mouth edges 2 in the area of the suction mouth and protrudes by two millimeters on the underside (FIG. 3). - The distance s between the partition of the roller chamber containing the passage to the
turbine chamber 4 and thebristles 5 of therotating roller 6 is at least eight millimeters at the narrowest point (FIG. 2). - The volume of the
cylindrical turbine chamber 4 and the volume occupied by the material of theturbine 3 are in a ratio of 5: 1 to 13: 1, preferably in a range from 6: 1 to 8.5: 1. Theturbine 3 has a diameter of 45 to 60 millimeters and a length of more than 40 millimeters and extends essentially over the entire width of theturbine chamber 4. - The
passage 8 to theturbine chamber 4 has a rectangular outlet cross section with a width of 10 to 18 millimeters and a height of 14 to 18 millimeters (FIGS. 1 and 2). - The distance L between the axes of rotation of the roller and the turbine is 70 to 90 millimeters (FIG. 2).
Durchführungen und gegeneinander bewegliche Teile des in den Figuren dargestellten Saugreinigungsgerätes sind zweckmäßig so abgedichtet, dass sich bei dem nachfolgend beschriebenen, branchenüblichen Prüfverfahren eine Druckabsenkung von 65 bis 80 mbar einstellt. An das Saugreinigungsgerät wird bei diesem Prüfverfahren ein handelsüblicher Sauger angeschlossen, der so betrieben wird, dass er bei verschlossenem Saugstutzen eine Druckabsenkung gegen Atmosphärendruck von 100 mbar erzeugt. Der so eingestellte Sauger wird anschließend an das zu prüfende Saugreinigungsgerät angeschlossen, dessen Saugmund mit einer Folie dicht abgeklebt ist. Der sich an der Saugseite des Saugers einstellende Druck wird gemessen. Das Saugreinigungsgerät erfüllt die erfindungsgemäße Vorgabe, wenn sich eine Druckabsenkung von mindestens 60 mbar, vorzugsweise von 60 bis 90 mbar, gegenüber Atmosphärendruck einstellt.Bushings and mutually movable parts of the in the suction cleaning device shown in the figures are useful sealed in such a way that the following industry standard test procedures a pressure drop from 65 to 80 mbar. To the vacuum cleaning device becomes a commercial one with this test method Vacuum connected, which is operated so that it when the suction port is closed, a pressure reduction against Atmospheric pressure of 100 mbar generated. The so set The vacuum cleaner is then connected to the vacuum cleaning device to be tested connected, its suction mouth sealed with a film is taped. The one on the suction side of the suction cup Pressure is measured. The suction cleaning device meets the requirement of the invention when there is a pressure drop of at least 60 mbar, preferably from 60 to 90 mbar, set against atmospheric pressure.
Das Saugreinigungsgerät mit der erfindungsgemäßen Parameterabstimmung zeichnet sich durch außergewöhnlich gute Saugeigenschaften in Verbindung mit einer geringen Geräuschentwicklung aus.The suction cleaning device with the parameter adjustment according to the invention is characterized by exceptionally good Suction properties in connection with a low noise level out.
Claims (7)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20000108121 EP1145677B1 (en) | 2000-04-13 | 2000-04-13 | Suction nozzle for vacuum cleaner |
DE50000075T DE50000075D1 (en) | 2000-04-13 | 2000-04-13 | Suction cleaning device for household vacuum cleaners |
CNB001309536A CN1141909C (en) | 2000-04-13 | 2000-11-22 | Sucking and cleaner for household vacuum duster |
HK02101265A HK1039552A1 (en) | 2000-04-13 | 2002-02-21 | A suction cleaning device for domestic vacuum cleaners. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20000108121 EP1145677B1 (en) | 2000-04-13 | 2000-04-13 | Suction nozzle for vacuum cleaner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1145677A1 true EP1145677A1 (en) | 2001-10-17 |
EP1145677B1 EP1145677B1 (en) | 2001-11-14 |
Family
ID=8168469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000108121 Expired - Lifetime EP1145677B1 (en) | 2000-04-13 | 2000-04-13 | Suction nozzle for vacuum cleaner |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1145677B1 (en) |
CN (1) | CN1141909C (en) |
DE (1) | DE50000075D1 (en) |
HK (1) | HK1039552A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1618822A1 (en) | 2004-07-17 | 2006-01-25 | Wessel-Werk GmbH & Co. KG | Brush attachment for domestic suction cleaner |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0351224A2 (en) * | 1988-07-13 | 1990-01-17 | Black & Decker Inc. | Dual-purpose rotating brush for vacuum cleaner |
DE4000374A1 (en) * | 1989-01-31 | 1990-08-02 | Duepro Ag | MULTI-PURPOSE SUCTION NOZZLE |
DE4105336A1 (en) * | 1991-02-21 | 1992-10-22 | Fedag Romanshorn Fa | SUCTION CLEANING TOOL |
EP0338780B1 (en) * | 1988-04-20 | 1993-12-22 | Matsushita Electric Industrial Co., Ltd. | Floor nozzle for electric cleaner |
US5452490A (en) * | 1993-07-02 | 1995-09-26 | Royal Appliance Mfg. Co. | Brushroll with dual row of bristles |
WO1999065376A1 (en) * | 1998-06-12 | 1999-12-23 | Düpro AG | Vacuum cleaning tool |
-
2000
- 2000-04-13 DE DE50000075T patent/DE50000075D1/en not_active Expired - Lifetime
- 2000-04-13 EP EP20000108121 patent/EP1145677B1/en not_active Expired - Lifetime
- 2000-11-22 CN CNB001309536A patent/CN1141909C/en not_active Expired - Fee Related
-
2002
- 2002-02-21 HK HK02101265A patent/HK1039552A1/en not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0338780B1 (en) * | 1988-04-20 | 1993-12-22 | Matsushita Electric Industrial Co., Ltd. | Floor nozzle for electric cleaner |
EP0351224A2 (en) * | 1988-07-13 | 1990-01-17 | Black & Decker Inc. | Dual-purpose rotating brush for vacuum cleaner |
DE4000374A1 (en) * | 1989-01-31 | 1990-08-02 | Duepro Ag | MULTI-PURPOSE SUCTION NOZZLE |
DE4105336A1 (en) * | 1991-02-21 | 1992-10-22 | Fedag Romanshorn Fa | SUCTION CLEANING TOOL |
DE4105336C2 (en) * | 1991-02-21 | 1994-08-25 | Fedag Romanshorn Fa | Suction cleaning tool |
US5452490A (en) * | 1993-07-02 | 1995-09-26 | Royal Appliance Mfg. Co. | Brushroll with dual row of bristles |
WO1999065376A1 (en) * | 1998-06-12 | 1999-12-23 | Düpro AG | Vacuum cleaning tool |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1618822A1 (en) | 2004-07-17 | 2006-01-25 | Wessel-Werk GmbH & Co. KG | Brush attachment for domestic suction cleaner |
Also Published As
Publication number | Publication date |
---|---|
HK1039552A1 (en) | 2002-05-03 |
CN1317288A (en) | 2001-10-17 |
CN1141909C (en) | 2004-03-17 |
EP1145677B1 (en) | 2001-11-14 |
DE50000075D1 (en) | 2002-02-21 |
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