EP1434512B1 - Vacuum cleaner - Google Patents

Vacuum cleaner Download PDF

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Publication number
EP1434512B1
EP1434512B1 EP02777164A EP02777164A EP1434512B1 EP 1434512 B1 EP1434512 B1 EP 1434512B1 EP 02777164 A EP02777164 A EP 02777164A EP 02777164 A EP02777164 A EP 02777164A EP 1434512 B1 EP1434512 B1 EP 1434512B1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
air guide
collecting chamber
guide funnel
suction means
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.)
Expired - Lifetime
Application number
EP02777164A
Other languages
German (de)
French (fr)
Other versions
EP1434512B2 (en
EP1434512B9 (en
EP1434512A2 (en
Inventor
Thomas Seith
Heribert Schwarz
Artur Weigand
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to EP10183134.5A priority Critical patent/EP2275016B1/en
Priority to EP09157712.2A priority patent/EP2090209B1/en
Publication of EP1434512A2 publication Critical patent/EP1434512A2/en
Publication of EP1434512B1 publication Critical patent/EP1434512B1/en
Publication of EP1434512B2 publication Critical patent/EP1434512B2/en
Application granted granted Critical
Publication of EP1434512B9 publication Critical patent/EP1434512B9/en
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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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/362—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the horizontal type, e.g. canister or sledge type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/03—Vacuum cleaner

Definitions

  • the invention relates to a vacuum cleaner for sucking and accumulating particles in at least one collecting chamber, comprising at least one receiving chamber for suction means comprising a motor driven fan, wherein the collecting chamber and the receiving chamber are separated by a partition wall having an inlet opening for an air flow of the collecting chamber to the suction means, and wherein the partition wall as an inlet opening for coupling the collecting chamber to the suction means of the receiving chamber has a tapered from its inlet surface at the collecting chamber in the direction of the suction air duct funnel whose entrance surface forms the essential part of the partition wall surface.
  • the invention has for its object to provide a vacuum cleaner, the suction power is improved even with a compact design and at the same time avoids the risk of injury by rotating fan blades.
  • the air duct funnel in its funnel base has an engagement protection element, which is formed by a dome-like or otherwise shaped rib body in the direction of the collection chamber, the gaps for largely unimpeded passage of the air flow from the Having collection chamber to the suction means and cut off the protective ribs in the middle of the hopper of the Lucasleittrichters, that is to the opening to the fan, in the direction of the collecting chamber.
  • the dividing wall has as an inlet opening an air-conducting funnel whose inlet surface forms the essential part of the dividing wall surface, an excessive pressure loss of the airflow from the collecting space or the collecting chamber to the suction means is largely avoided. Furthermore, this overly affecting noise development is largely avoided. Because the larger the entry surface of the air guide funnel is selected, the less resistance is opposed to the directed to the suction air flow. Thereby are much less
  • Air turbulence in the direction of the collection room possible. Overall, a directional air flow from the collecting space through the air guide funnel to the suction means can be improved.
  • FIGS. 1 5 each provided with the same reference numerals.
  • FIG. 1 shows schematically in plan view the arrangement of the essential components of a vacuum cleaner SS, which is formed according to the principle of the invention. It has at one end face of its housing GH an inlet opening EO with preferably circular cross-section for sucking suction air SL.
  • a first collecting chamber or a collecting space SR is provided, which serves to accumulate particles or particles to be sucked, in particular dirt particles or dust particles.
  • a filter bag or dust bag PF for receiving the sucked from the outside through the inlet opening EO into the collection chamber SR dirt or dust particles ST is used.
  • the filter bag PF is at the output side end of the approximately tubular inlet opening EO inside plugged so that outside sucked particles or particles directly into the interior of the dust bag PF.
  • a vacuum cleaner tube or a vacuum cleaner hose is usually coupled to the inlet opening EO, with which dust particles can then be absorbed by a carpet, for example.
  • At least one filter element for example a filter fleece, in the collecting chamber SR between the inlet opening EO and the dust bag PF.
  • the housing GH of the vacuum cleaner SS of FIG. 1 is separated from the collecting space or from the collection or dust chamber SR a receiving chamber MR through an intermediate wall TW.
  • This receiving space MR is used in particular for accommodating and storing suction means with which a directable suction air flow LF can be produced through the inlet opening EO, the collecting space SR and the dust bag PF optionally provided there.
  • the routing of the air flow LF through the interior of the housing of the vacuum cleaner SS is indicated by dashed arrows.
  • the suction means are formed at the vacuum cleaner SS primarily by a blower GB known type, which is driven by a motor MO.
  • the rotor blades of the blower GB are designed so that they suck air from the outside through the inlet opening EO in the interior of the housing GH, let flow through the collecting space SR, then aspirate through an inlet opening in the dividing wall TW in the receiving space MR, and finally by Outlet openings AO in the housing GH blow out to the outside again.
  • the outflowing air is in the FIG. 1 also indicated by dashed arrows AL.
  • MR may also be accommodated in the receiving space MR optionally other components of the vacuum cleaner such as its cable drum KT for winding an electrical connection cable KA.
  • the inlet opening in the partition TW is expediently provided at such a point that the air flow LF from the inlet opening EO through the collecting space SR to the suction means GB, MO behind the Dividing wall TW in the receiving space MR is directed substantially rectilinear guided.
  • the inlet opening in the dividing wall TW is designed as an air-guiding funnel LT. This air-guiding funnel LT tapers, starting from its entry surface, to the collecting space SR in the direction of the suction means GB, MR. At its outlet opening directly the suction means, in particular the fan GB as close as possible mechanically coupled.
  • FIG. 2 An expedient embodiment of the Lucasleittrichters LT of FIG. 1 shows FIG. 2 in spatial representation in detail.
  • the Luftleittrichter LT has a substantially rectangular entrance surface RE for the air flow LF from the dust chamber SR.
  • the Ingress surface RE of the air guide funnel LT terminates substantially flush with the otherwise preferably planar partition wall TW.
  • the inner walls of the Lucasleittrichters LT then run starting from this rectangular outer contour to each other in the manner of a cone in the direction of the suction means, which sit behind the partition wall TW yes.
  • the inner walls of the Heilleittrichters LT finally form a cross-sectionally approximately circular outlet opening for the positive connection of the approximately circular discharge pipe of the blower GB.
  • FIG. 4 This form of the Lucasleittrichters LT as Ankoppelkomponente for the air flow LF between the collection chamber SR and the receiving chamber MR is in the FIG. 4 enlarged by a cross-sectional image shown in side view.
  • the interior of the shipsleittrichters LT ends with an approximately circular outlet opening KRO.
  • the blower GB is mechanically coupled.
  • the wheels LR of the blower GB are the front side guided in the sealing element GT, where they grind largely dense by the operation.
  • a buffer is formed by the sealing element GT between the respective impeller such as LR and the outer casing of the blower GB.
  • the Luftleittrichter LT is now advantageously formed as an inlet opening in the partition wall TW such that its entrance surface forms the essential part of the partition wall surface. This is especially the case FIG. 2 out.
  • the entry surface RE of the air guide funnel LT occupies at least 50%, preferably between 70 and 80%, of the total area of the dividing wall TW. As a result of this large-area entrance surface, a pressure drop of the air flow LF during suction into the suction means GB, MO in the receiving space MR is largely avoided.
  • the air-conducting funnel by virtue of its shape tapering in the direction of the suction means GB, MR, brings about a homogeneous transition for the airflow LF from the collecting chamber SR to the suction means coupled to the outlet opening of the air-guiding funnel LT.
  • MR preferably has a circular cross-section, which is substantially smaller than the cross-sectional width of the partition wall TW.
  • an additional effect for the air flow LF from the collecting chamber SR through the dividing wall TW into the receiving space MR is effected.
  • the air flow LF can be directed by the receiving chamber SR and the dust bag PF introduced there in a targeted manner, ie predetermine a Weg Entry for the air flow.
  • the air flow LF is guided by a corresponding alignment of the inlet opening of the Lichtleittrichters LT on the opposite inlet opening EO of the collecting chamber SR substantially straight.
  • the sucked air flow LF is opposed to a lower air resistance, as if the inlet opening in the partition wall TW would be formed only circular.
  • the air guide funnels back into the collecting space SR The larger the inlet funnel of the air guide funnel LT is selected, the less undesired reflections of the air flow LF back into the dust space SR and the better the air flow through the blower GB of the suction means can be sucked out of the dust space SR.
  • a projecting in the direction of the collecting chamber SR engagement protection element ES provided.
  • This is preferably formed curved conical.
  • it has a rib body with gaps for passing the air flow LF.
  • This fin body is oriented in opposite directions to the taper of the inlet channel of the Lucasleittrichters LT.
  • it also has a funnel shape that widens in the direction of the collection chamber SR.
  • this rib-shaped engagement protection element ES By this rib-shaped engagement protection element ES, the operator is prevented from entering the fan unacceptably into the fan, so that, for example, hand injuries caused by the rotating fan blades are largely avoided. Due to the special funnel shape of acting as a motor protection grille engagement protection element ES can advantageously the free air cross section between the individual ribs are executed as possible, and thus a relatively small obstruction of the air flow despite this additional protective measure can be achieved.
  • the dome-like engagement protection element ES in the direction of the collecting chamber SR only light so far that its outer contour is flush with the entry surface of the RE Lucasleittrichters LT.
  • at least one filter element FI can be mounted in front of the inlet opening of the air guide funnel LT by means of two web clamps SI1, SI2 arranged laterally from the entry face RE of the air guide funnel LT.
  • This filter element FI is used for further purification of the exhaust air LF, which is withdrawn from the dust chamber SR. It may be designed in particular as a pollen or allergic filter.
  • One or more filter webs FIV are preferably clamped between the two halves of a booklet-like holding grid HF. This is in the FIG. 5 represented where the other components of the vacuum cleaner are shown in disassembled state.
  • the partition wall TW, the Luftleittrichter LT, and / or its superior engagement protection element ES may be expedient to form the partition wall TW, the Luftleittrichter LT, and / or its superior engagement protection element ES as a one-piece component. Equally, however, it may also be expedient to manufacture these three components as individual components and then to mechanically couple them to one another.
  • the Luftleittrichter fixed ie be integrated directly into the plastic housing of the partition between the dust chamber and the engine compartment.
  • On the engine compartment side of the engine or the associated fan is then suitably coupled via rubber parts to the outlet opening of the shipsleittrichters and sealed.
  • the air duct funnel may be plugged as an additional part on the engine or the fan hood. The whole unit is then over Rubber parts of known type coupled in the device body and sealed.
  • the suction air could reach only very strong curvatures from the dust chamber in the blower.
  • This spoiler funnel is advantageously designed in the dust chamber to increase the entrance surface as a rectangle.
  • the funnel shape preferably runs swiftly and without a contour jump towards the round diameter of the blower inlet opening.
  • protective ribs may be installed in the funnel center (opening to the fan).
  • the ribbed body is expediently designed to be funnel-shaped in the opposite direction to the air-conducting funnel outward in the direction of the dust space. Due to this special funnel shape of the motor protection grid (ribbed body), the free air cross section between the individual ribs can be made as large as possible or a relatively smaller obstruction of the air flow can be achieved. As a result, an overall increase in air capacity and thus an increase in the output of the respective vacuum cleaner is possible.

Abstract

The device has at least one particle collection chamber, at least one accommodation chamber for a suction arrangement and a dividing wall between the chambers with an inlet opening for air flow from the collecting chamber to the suction arrangement. The dividing wall has an air guide funnel forming the inlet opening for coupling the collection chamber to the suction arrangement, whose inlet surface forms a significant area of the dividing wall. The device has at least one collection chamber (SR) for collecting particles, at least one accommodation chamber (MR) for a suction arrangement (MO,GB) and a dividing wall (TW) between the chambers with an inlet opening for an air flow (LF) from the collecting chamber to the suction arrangement. The dividing wall has an air guide funnel (LT) forming the inlet opening for coupling the collection chamber to the suction arrangement, whose inlet surface forms a significant part of the dividing wall area. An independent claim is also included for the following: a vacuum cleaner.

Description

Die Erfindung betrifft einen Staubsauger zum Aufsaugen und Ansammeln von Partikeln in mindestens einer Sammelkammer, mit mindestens einer Aufnahmekammer für Saugmittel umfassend ein von einem Motor angetriebenes Gebläse, wobei die Sammelkammer und die Aufnahmekammer durch eine Trennwand voneinander separiert sind, die eine Eintrittsöffnung für einen Luftstrom von der Sammelkammer zu dem Saugmittel aufweist, und wobei die Trennwand als Eintrittsöffnung zur Ankopplung der Sammelkammer an die Saugmittel der Aufnahmekammer einen sich von seiner Eintrittsfläche bei der Sammelkammer in Richtung auf das Saugmittel verjüngenden Luftleittrichter aufweist, dessen Eintrittsfläche den wesentlichen Teil der Trennwandfläche bildet.The invention relates to a vacuum cleaner for sucking and accumulating particles in at least one collecting chamber, comprising at least one receiving chamber for suction means comprising a motor driven fan, wherein the collecting chamber and the receiving chamber are separated by a partition wall having an inlet opening for an air flow of the collecting chamber to the suction means, and wherein the partition wall as an inlet opening for coupling the collecting chamber to the suction means of the receiving chamber has a tapered from its inlet surface at the collecting chamber in the direction of the suction air duct funnel whose entrance surface forms the essential part of the partition wall surface.

In der Praxis kann insbesondere bei ultrakompakten Staubsaugern, vorzugsweise Bodenstaubsaugem, deren Saugleistung zu niedrig sein. Dies kann beispielsweise durch eine verwinkelte Führung des Saugluftstroms durch die äußerst kompakte Anordnung der einzelnen Bauteile im Inneren des Gehäuses solcher Staubsauger herrühren. Weiterhin können in die Chassis eines solchen Staubsaugers aufgrund des geringen Platzangebots oftmals nur leistungsschwächere Gebläseaggregate bzw. Saugaggregate angebracht werden, die gegenüber herkömmlichen, größeren Staubsaugertypen geringere Saugleistungen aufweisen.In practice, especially in ultra-compact vacuum cleaners, preferably Bodenstaubsaugem whose suction power to be too low. This can for example be caused by an angled guidance of the suction air flow through the extremely compact arrangement of the individual components in the interior of the housing of such vacuum cleaners. Furthermore, in the chassis of such a vacuum cleaner due to the small space often only weaker blower units or suction units are mounted, which have lower suction than conventional, larger types of vacuum cleaner.

Aus der DE 198 02 345 A1 ist bekannt, im Luftleitrichter einen Rippenkörper anzuordnen, welcher eine Lärm-Schutzwandung haltert. Nachteilig hierbei ist, dass die Lärm-Schutzwandung keine weitgehend ungehinderte Hindurchführung eines Luftstroms von der Sammelkammer zu dem Saugmittel gestattet. Vielmehr reduziert sie die aktive Lufteintrittsfläche wesentlich.From the DE 198 02 345 A1 is known to arrange a fin body in the air guide, which holds a noise barrier. The disadvantage here is that the noise-protection wall does not allow a largely unhindered passage of air flow from the collection chamber to the suction means. Rather, it significantly reduces the active air intake surface.

Aus der DE 44 15 005 A1 ist bekannt, im Luftleittrichter eines Staubsaugers ein rotierend ausgebildetes Kegel-Sieb mit Schaufelrädern anzuordnen.From the DE 44 15 005 A1 It is known to arrange a rotating trained cone sieve with paddle wheels in the air discharge funnel of a vacuum cleaner.

Aus der US 3,454,978 B ist bekannt, Gebläseschaufeln nicht direkt hinterm Lufteinlass sondern auf der entgegengesetzten Seite des Motors anzuordnen.From the US 3,454,978 B It is known to arrange fan blades not directly behind the air intake but on the opposite side of the engine.

Aus der US 4,542,557 B und US 3,454,978 B ist ferner bekannt, vor dem Lufteinlass ein Filtervlies vorzusehen.From the US 4,542,557 B and US 3,454,978 B It is also known to provide a filter fleece in front of the air inlet.

Darüber hinaus ist aus der US 6,125,501 B , JP 2001-238826 A , JP 2001-70203 A , JP 2001-161604 A und der JP 2000-325269 A bekannt, das Filtervlies in einer gitterförmig ausgebildeten Kassette zu haltern.In addition, from the US 6,125,501 B . JP 2001-238826 A . JP 2001-70203 A . JP 2001-161604 A and the JP 2000-325269 A known to hold the filter fabric in a lattice-shaped cassette.

Schließlich sei noch auf die GB 2 342 596 A ; DE 33 28 491 A1 ; US 4,610,048 B ; US 2,237,499 B sowie die US 4,682,384 B hingewiesen.Finally, be on the GB 2 342 596 A ; DE 33 28 491 A1 ; US 4,610,048 B ; US 2,237,499 B as well as the US 4,682,384 B pointed.

Der Erfindung liegt die Aufgabe zugrunde, einen Staubsauger bereitzustellen, dessen Saugleistung selbst bei kompakter Bauweise verbessert ist und zugleich die Verletzungsgefahr durch rotierende Gebläseblätter vermeidet.The invention has for its object to provide a vacuum cleaner, the suction power is improved even with a compact design and at the same time avoids the risk of injury by rotating fan blades.

Diese Aufgabe wird bei einer Vorrichtung der eingangs genannten Art dadurch gelöst, dass der Luftleittrichter in seinem Trichtergrund ein Eingriffschutzelement aufweist, welches durch einen sich in Richtung der Sammelkammer domartig aufweitenden oder anders geformten Rippenkörper gebildet ist, der Lücken zur weitgehend ungehinderten Hindurchführung des Luftstroms von der Sammelkammer zu den Saugmitteln aufweist und dessen Schutzrippen in der Trichtermitte des Luftleittrichters, das heißt zur Öffnung zum Gebläse hin, in Richtung auf die Sammelkammer abstechen.This object is achieved in a device of the type mentioned above in that the air duct funnel in its funnel base has an engagement protection element, which is formed by a dome-like or otherwise shaped rib body in the direction of the collection chamber, the gaps for largely unimpeded passage of the air flow from the Having collection chamber to the suction means and cut off the protective ribs in the middle of the hopper of the Luftleittrichters, that is to the opening to the fan, in the direction of the collecting chamber.

Dadurch, dass die Trennwand als Eintrittsöffnung einen Luftleittrichter aufweist, dessen Eintrittsfläche den wesentlichen Teil der Trennwandfläche bildet, wird ein zu großer Druckverlust des Luftstroms vom Sammelraum bzw. der Sammelkammer zu den Saugmitteln weitgehend vermieden. Weiterhin wird dadurch eine zu stark beeinträchtigende Geräuschentwicklung weitgehend vermieden. Denn je größer die Eintrittsfläche des Luftleittrichters gewählt ist, desto weniger Widerstand wird dem zu den Saugmitteln gerichteten Luftstrom entgegengesetzt. Dadurch sind weitaus wenigerDue to the fact that the dividing wall has as an inlet opening an air-conducting funnel whose inlet surface forms the essential part of the dividing wall surface, an excessive pressure loss of the airflow from the collecting space or the collecting chamber to the suction means is largely avoided. Furthermore, this overly affecting noise development is largely avoided. Because the larger the entry surface of the air guide funnel is selected, the less resistance is opposed to the directed to the suction air flow. Thereby are much less

Luftverwirbelungen in Richtung des Sammelraums möglich. Insgesamt läßt sich verbessert ein gerichteter Luftstrom vom Sammelraum durch den Luftleittrichter zu den Saugmitteln bereitstellen.Air turbulence in the direction of the collection room possible. Overall, a directional air flow from the collecting space through the air guide funnel to the suction means can be improved.

Zugleich wird durch das rippenförmige Eingriffschutzelement der Bediener vor einem unzulässigen Hineinlangen in das Gebläse abgehalten, so daß zum Beispiel Handverletzungen durch die rotierenden Gebläseblätter weitgehend vermieden sind. Durch die spezielle Trichterform des als Motorschutzgitter wirkenden Eingriffschutzelements kann in vorteilhafter Weise der freie Luftguerschnitt zwischen den einzelnen Rippen größtmöglich ausgeführt werden, und somit eine relativ geringe Behinderung des Luftstroms trotz dieser zusätzlichen Schutzmaßnahme erreicht werden.At the same time is prevented by the rib-shaped engagement protection element of the operator from an inadmissible in-line into the fan, so that, for example, hand injuries caused by the rotating fan blades are largely avoided. Due to the special funnel shape of acting as a motor protection grille engagement protection element, the free Luftguerschnitt between the individual ribs can be carried out as possible as possible, and thus a relatively low obstruction of the air flow despite this additional protective measure can be achieved.

Sonstige Weiterbildungen der Erfindung sind in den Unteransprüchen wiedergegeben.Other developments of the invention are given in the dependent claims.

Die Erfindung und ihre Weiterbildungen werden nachfolgend anhand von Zeichnungen näher erläutert.The invention and its developments are explained in more detail with reference to drawings.

Es zeigen:

Figur 1
in schematischer Querschnittsdarstellung in Draufsicht die wesentlichen Komponenten eines Staubsaugers, der nach dem erfindungsgemäßen Prinzip ausgebildet ist und funktioniert,
Figur 2
in schematischer, räumlicher Darstellung die Trennwand zwischen der Sammelkammer und der Aufnahmekammer für die Saugmittel des Staubsaugers nach Figur 1, wobei die Trennwand einen erfindungsgemäßen Luftleittrichter zur Führung des Luftstroms von der Sammelkammer zu den Saugmitteln der Aufnahmekammer aufweist,
Figur 3
in schematischer Seitenansicht die Anordnung der Funktionskomponenten des erfindungsgemäßen Staubsaugers nach Figur 1,
Figur 4
in schematischer vergrößerter Querschnittsdarstellung als Einzelheit des Staubsaugers nach Figur 3 dessen Luftleittrichter am Eingang dessen Saugmittel, und
Figur 5
in schematischer Darstellung die Einzelkomponenten des Staubsaugers nach Figur 1 im zerlegten Zustand.
Show it:
FIG. 1
in a schematic cross-sectional view in plan view of the essential components of a vacuum cleaner, which is designed and operates according to the principle of the invention,
FIG. 2
in a schematic, spatial representation of the partition between the collection chamber and the receiving chamber for the suction means of the vacuum cleaner after FIG. 1 wherein the partition wall has an air-guiding funnel according to the invention for guiding the air flow from the collecting chamber to the suction means of the receiving chamber,
FIG. 3
in a schematic side view of the arrangement of the functional components of the vacuum cleaner according to the invention FIG. 1 .
FIG. 4
in a schematic enlarged cross-sectional view as a detail of the vacuum cleaner after FIG. 3 whose Luftleittrichter at the entrance of its suction means, and
FIG. 5
in a schematic representation of the individual components of the vacuum cleaner after FIG. 1 in disassembled condition.

Elemente mit gleicher Funktion und Wirkungsweise sind in den Figuren 1 mit 5 jeweils mit denselben Bezugszeichen versehen.Elements with the same function and mode of action are in the FIGS. 1 5 each provided with the same reference numerals.

Figur 1 zeigt schematisch in Draufsicht die Anordnung der wesentlichen Komponenten eines Bodenstaubsaugers SS, der nach dem erfindungsgemäßen Prinzip ausgebildet ist. Er weist an der einen Stirnseite seines Gehäuses GH eine Eintrittsöffnung EO mit vorzugsweise kreisrundem Querschnitt zum Ansaugen von Saugluft SL auf. Im Gehäuse hinter dieser Eintrittsöffnung EO ist eine erste Sammelkammer bzw. ein Sammelraum SR vorgesehen, der der Ansammlung von anzusaugenden Partikeln bzw. Teilchen, insbesondere Schmutzpartikeln oder Staubteilchen, dient. Hier im Ausführungsbeispiel von Figur 1 ist im Sammelraum SR ein Filterbeutel bzw. Staubbeutel PF zur Aufnahme der von außen durch die Eintrittsöffnung EO in die Sammelkammer SR hineingesaugten Schmutz oder Staubteilchen ST dient. Der Filterbeutel PF ist dabei an das ausgangsseitige Ende der etwa rohrförmigen Eintrittsöffnung EO innenseitig aufgesteckt, so daß von außen angesaugte Partikel bzw. Teilchen direkt in das Innere des Staubbeutels PF gelangen. An die Eintrittsöffnung EO ist in der Regel außen ein Staubsaugerrohr oder ein Staubsaugerschlauch angekoppelt, mit dem sich dann zum Beispiel Staubteilchen von einem Teppich aufsaugen lassen. FIG. 1 shows schematically in plan view the arrangement of the essential components of a vacuum cleaner SS, which is formed according to the principle of the invention. It has at one end face of its housing GH an inlet opening EO with preferably circular cross-section for sucking suction air SL. In the housing behind this inlet opening EO, a first collecting chamber or a collecting space SR is provided, which serves to accumulate particles or particles to be sucked, in particular dirt particles or dust particles. Here in the embodiment of FIG. 1 is in the collecting space SR a filter bag or dust bag PF for receiving the sucked from the outside through the inlet opening EO into the collection chamber SR dirt or dust particles ST is used. The filter bag PF is at the output side end of the approximately tubular inlet opening EO inside plugged so that outside sucked particles or particles directly into the interior of the dust bag PF. A vacuum cleaner tube or a vacuum cleaner hose is usually coupled to the inlet opening EO, with which dust particles can then be absorbed by a carpet, for example.

Zweckmäßig kann es gegebenenfalls sein, in der Sammelkammer SR zwischen der Eintrittsöffnung EO und dem Staubbeutel PF zusätzlich mindestens ein Filterelement wie zum Beispiel ein Filtervlies zwischenzuschalten.It may be expedient, if appropriate, optionally to interpose at least one filter element, for example a filter fleece, in the collecting chamber SR between the inlet opening EO and the dust bag PF.

Im Gehäuse GH des Staubsaugers SS von Figur 1 ist vom Sammelraum bzw. von der Sammel- oder Staubkammer SR eine Aufnahmekammer MR durch eine Zwischenwand TW abgetrennt. Dieser Aufnahmeraum MR dient insbesondere der Unterbringung und Lagerung von Saugmitteln, mit denen sich ein richtbarer Saugluftstrom LF durch die Eintrittsöffnung EO, dem Sammelraum SR sowie dem dort gegebenenfalls vorgesehenen Staubbeutel PF hindurch erzeugen läßt. In der Figur 1 ist dabei die Wegführung der Luftströmung LF durch das Innere des Gehäuses des Staubsaugers SS hindurch durch gestrichelte Pfeile angedeutet. Die Saugmittel sind beim Staubsauger SS primär durch ein Gebläse GB bekannter Bauart gebildet, das von einem Motor MO angetrieben wird. Die Rotorblätter des Gebläses GB sind so gestaltet, daß sie Luft von außen durch die Eintrittsöffnung EO in das Innere des Gehäuses GH einsaugen, durch den Sammelraum SR hindurchströmen lassen, anschließend durch eine Eintrittsöffnung in der Trennwand TW in den Aufnahmeraum MR absaugen, und schließlich durch Austrittsöffnungen AO im Gehäuse GH wieder nach außen ausblasen. Die ausströmende Ausblasluft ist in der Figur 1 ebenfalls mit gestrichelten Pfeilen AL angedeutet. Neben den Saugmitteln MO, MR können im Aufnahmeraum MR gegebenenfalls auch weitere Komponenten des Staubsaugers wie zum Beispiel dessen Kabeltrommel KT zum Aufwickeln eines elektrischen Anschlußkabels KA untergebracht sein.In the housing GH of the vacuum cleaner SS of FIG. 1 is separated from the collecting space or from the collection or dust chamber SR a receiving chamber MR through an intermediate wall TW. This receiving space MR is used in particular for accommodating and storing suction means with which a directable suction air flow LF can be produced through the inlet opening EO, the collecting space SR and the dust bag PF optionally provided there. In the FIG. 1 In this case, the routing of the air flow LF through the interior of the housing of the vacuum cleaner SS is indicated by dashed arrows. The suction means are formed at the vacuum cleaner SS primarily by a blower GB known type, which is driven by a motor MO. The rotor blades of the blower GB are designed so that they suck air from the outside through the inlet opening EO in the interior of the housing GH, let flow through the collecting space SR, then aspirate through an inlet opening in the dividing wall TW in the receiving space MR, and finally by Outlet openings AO in the housing GH blow out to the outside again. The outflowing air is in the FIG. 1 also indicated by dashed arrows AL. In addition to the suction means MO, MR may also be accommodated in the receiving space MR optionally other components of the vacuum cleaner such as its cable drum KT for winding an electrical connection cable KA.

Um nun eine ausreichende Saugleistung des Staubsaugers SS selbst bei kompaktem Baumaß bereitstellen zu können, wird die Eintrittsöffnung in der Trennwand TW zweckmäßigerweise an einer solchen Stelle vorgesehen, daß der Luftstrom LF von der Eintrittsöffnung EO durch den Sammelraum SR zu den Saugmitteln GB, MO hinter der Trennwand TW im Aufnahmeraum MR im wesentlichen geradlinig gerichtet führbar ist. Um eine solche gezielte Luftführung zu ermöglichen, das heißt der eingesaugten Luft eine bestimmte, vorgebbare Strömungsrichtung aufprägen zu können, ist die Einlaßöffnung in der Trennwand TW als Luftleittrichter LT ausgebildet. Dieser Luftleittrichter LT verjüngt sich ausgehend von seiner Eintrittsfläche beim Sammelraum SR in Richtung auf die Saugmittel GB, MR zu. An seine Austrittsöffnung sind unmittelbar die Saugmittel, insbesondere das Gebläse GB möglichst dicht mechanisch angekoppelt.In order to be able to provide a sufficient suction power of the vacuum cleaner SS even with a compact structural dimension, the inlet opening in the partition TW is expediently provided at such a point that the air flow LF from the inlet opening EO through the collecting space SR to the suction means GB, MO behind the Dividing wall TW in the receiving space MR is directed substantially rectilinear guided. In order to enable such a targeted air flow, that is, to be able to impart a certain, predeterminable flow direction to the sucked-in air, the inlet opening in the dividing wall TW is designed as an air-guiding funnel LT. This air-guiding funnel LT tapers, starting from its entry surface, to the collecting space SR in the direction of the suction means GB, MR. At its outlet opening directly the suction means, in particular the fan GB as close as possible mechanically coupled.

Eine zweckmäßige Ausgestaltung des Luftleittrichters LT von Figur 1 zeigt Figur 2 in räumlicher Darstellung im Detail. Dort weist der Luftleittrichter LT eine im wesentlichen rechteckförmige Eintrittsfläche RE für den Luftstrom LF aus dem Staubraum SR auf. Die Eintrittsfläche RE des Luftleittrichters LT schließt dabei im wesentlichen bündig mit der ansonsten vorzugsweise plan ausgebildeten Trennwand TW ab. Die Innenwände des Luftleittrichters LT laufen dann ausgehend von dieser rechteckförmigen Außenkontur aufeinander in der Art eines Konus in Richtung auf die Saugmittel zu, die ja hinter der Trennwand TW sitzen. Dabei bilden die Innenwände des Luftleittrichters LT schließlich eine im Querschnitt etwa kreisrunde Ausgangsöffnung zur formschlüssigen Ankopplung des etwa kreisrunden Ausblasrohres des Gebläses GB. Diese Form des Luftleittrichters LT als Ankoppelkomponente für den Luftstrom LF zwischen der Sammelkammer SR und der Aufnahmekammer MR ist in der Figur 4 anhand eines Querschnittsbildes vergrößert in Seitenansicht dargestellt. Dabei endet das Innere des Luftleittrichters LT mit einer etwa kreisrunden Austrittsöffnung KRO. An diese ist über stirnseitige Abdichtungselemente GT das Gebläse GB mechanisch angekoppelt. Die Laufräder LR des Gebläses GB sind dabei stirnseitig im Abdichtelement GT geführt, wo sie sich weitgehend dicht durch den Betrieb einschleifen. Dadurch ist durch das Abdichtelement GT ein Puffer zwischen dem jeweiligen Laufrad wie zum Beispiel LR und dem Außengehäuse des Gebläses GB gebildet. Diese Verhältnisse sind nochmals zusammen mit den wichtigsten anderen Komponenten des Staubsaugers SS in der Figur 3 in Seitenansicht komplett dargestellt.An expedient embodiment of the Luftleittrichters LT of FIG. 1 shows FIG. 2 in spatial representation in detail. There, the Luftleittrichter LT has a substantially rectangular entrance surface RE for the air flow LF from the dust chamber SR. The Ingress surface RE of the air guide funnel LT terminates substantially flush with the otherwise preferably planar partition wall TW. The inner walls of the Luftleittrichters LT then run starting from this rectangular outer contour to each other in the manner of a cone in the direction of the suction means, which sit behind the partition wall TW yes. In this case, the inner walls of the Luftleittrichters LT finally form a cross-sectionally approximately circular outlet opening for the positive connection of the approximately circular discharge pipe of the blower GB. This form of the Luftleittrichters LT as Ankoppelkomponente for the air flow LF between the collection chamber SR and the receiving chamber MR is in the FIG. 4 enlarged by a cross-sectional image shown in side view. In this case, the interior of the Luftleittrichters LT ends with an approximately circular outlet opening KRO. At this front side sealing elements GT, the blower GB is mechanically coupled. The wheels LR of the blower GB are the front side guided in the sealing element GT, where they grind largely dense by the operation. As a result, a buffer is formed by the sealing element GT between the respective impeller such as LR and the outer casing of the blower GB. These conditions are again together with the main other components of the vacuum cleaner SS in the FIG. 3 completely shown in side view.

Der Luftleittrichter LT ist nun vorteilhafterweise als Eintrittsöffnung in der Trennwand TW derart ausgebildet, daß seine Eintrittsfläche den wesentlichen Teil der Trennwandfläche bildet. Dies geht insbesondere aus Figur 2 hervor. Vorzugsweise nimmt die Eintrittsfläche RE des Luftleittrichters LT mindestens 50 %, bevorzugt zwischen 70 und 80 % der Gesamtfläche der Trennwand TW ein. Durch diese großflächige Eintrittsfläche wird ein Druckabfall des Luftstroms LF beim Ansaugen in die Saugmittel GB, MO im Aufnahmeraum MR hinein weitgehend vermieden. Der Luftleittrichter bewirkt dabei durch seine sich in Richtung auf die Saugmittel GB, MR verjüngende Form einen homogenen Übergang für den Luftstrom LF von der Sammelkammer SR zu den an der Austrittsöffnung des Luftleittrichters LT angekoppelten Saugmitteln. Denn die Ansaugröhre AR der Ansaugmittel GB, MR weist vorzugsweise einen kreisrunden Querschnitt auf, der wesentlich kleiner als die Querschnittsbreite der Trennwand TW ist. Zudem wird durch die annäherungsweise konusförmige Verjüngung des Luftleittrichters LT ein zusätzlicher Ansogeffekt für den Luftstrom LF von der Sammelkammer SR durch die Trennwand TW hindurch in den Aufnahmeraum MR bewirkt. Durch den sich in Richtung auf die Sammelkammer SR hin aufspreizenden, aufweitenden Eintrittskanal des Luftleittrichters LT wird eine Bündelwirkung bzw. Fokussierung des Luftstroms LF zusätzlich mit erreicht. Dadurch läßt sich der Luftstrom LF durch die Aufnahmekammer SR sowie dem dort eingebrachten Staubbeutel PF in gezielter Weise richten, d.h. eine Wegführung für den Luftstrom vorgeben. Insbesondere wird der Luftstrom LF durch entsprechende Ausrichtung der Eintrittsöffnung des Lichtleittrichters LT auf die gegenüberliegende Eintrittsöffnung EO der Sammelkammer SR im wesentlichen geradlinig geführt. Dadurch ist eine besonders kompakte Anordnung der Komponenten des Staubsaugers SS in dessen Gehäuse bei gleichzeitig hoher Saugleistung gewährleistet. Durch diese zum Sammelraum SR gewandte Aufspreizung bzw. Aufweitung des Luftleittrichter LT wird der angesaugten Luftströmung LF ein geringerer Luftwiderstand entgegengesetzt, wie wenn die Eintrittsöffnung in der Trennwand TW lediglich kreisrund ausgebildet wäre. Dadurch sind durch den Luftleittrichter LT auch weitgehend Luftverwirbelungen zurück in den Sammelraum SR weitgehend vermieden. Je größer dabei der Einlauftrichter des Luftleittrichters LT gewählt wird, desto weniger kommt es zu unerwünschten Reflexionen des Luftstroms LF zurück in den Staubraum SR und desto besser läßt sich die Luftströmung durch das Gebläse GB der Saugmittel aus dem Staubraum SR absaugen.The Luftleittrichter LT is now advantageously formed as an inlet opening in the partition wall TW such that its entrance surface forms the essential part of the partition wall surface. This is especially the case FIG. 2 out. Preferably, the entry surface RE of the air guide funnel LT occupies at least 50%, preferably between 70 and 80%, of the total area of the dividing wall TW. As a result of this large-area entrance surface, a pressure drop of the air flow LF during suction into the suction means GB, MO in the receiving space MR is largely avoided. The air-conducting funnel, by virtue of its shape tapering in the direction of the suction means GB, MR, brings about a homogeneous transition for the airflow LF from the collecting chamber SR to the suction means coupled to the outlet opening of the air-guiding funnel LT. For the suction tube AR of the suction means GB, MR preferably has a circular cross-section, which is substantially smaller than the cross-sectional width of the partition wall TW. In addition, due to the approximate conical taper of the air guide funnel LT, an additional effect for the air flow LF from the collecting chamber SR through the dividing wall TW into the receiving space MR is effected. By widening in the direction of the collecting chamber SR out, widening inlet channel of the Luftleittrichters LT is a bundling effect or focusing of the air flow LF additionally achieved. As a result, the air flow LF can be directed by the receiving chamber SR and the dust bag PF introduced there in a targeted manner, ie predetermine a Wegführung for the air flow. In particular, the air flow LF is guided by a corresponding alignment of the inlet opening of the Lichtleittrichters LT on the opposite inlet opening EO of the collecting chamber SR substantially straight. As a result, a particularly compact arrangement of the components of the vacuum cleaner SS is ensured in the housing at the same time high suction power. By this spreading to the collecting space SR spreading or widening of the Luftleittrichter LT the sucked air flow LF is opposed to a lower air resistance, as if the inlet opening in the partition wall TW would be formed only circular. As a result, largely air turbulences are largely avoided by the air guide funnels back into the collecting space SR. The larger the inlet funnel of the air guide funnel LT is selected, the less undesired reflections of the air flow LF back into the dust space SR and the better the air flow through the blower GB of the suction means can be sucked out of the dust space SR.

Erfindungsgemäß ist zusätzlich im Grund, das heißt, in der Nähe der Austrittsöffnung des Luftleittrichters LT, ein in Richtung der Sammelkammer SR abstehendes Eingriffschutzelement ES vorzusehen. Dieses ist vorzugsweise konusförmig gewölbt ausgebildet. Es weist insbesondere einen Rippenkörper mit Lücken zum Hindurchlassen des Luftstroms LF auf. Dieser Rippenkörper ist gegenläufig zur Verjüngung des Eintrittskanals des Luftleittrichters LT ausgerichtet. Insbesondere weist er ebenfalls eine Trichterform auf, die sich in Richtung auf die Sammelkammer SR hin aufweitet. Dadurch läßt sich ebenfalls eine Vergrößerung der Eintrittsfläche für den Luftstrom LF erzielen. Ein unerwünschter Druckverlust des Luftstroms LF beim Übergang von der Sammelkammer SR zu den Saugmitteln GB, MO ist somit weitgehend vermieden. Durch dieses rippenförmige Eingriffschutzelement ES wird der Bediener vor einem unzulässigen Hineinlangen in das Gebläse abgehalten, so daß zum Beispiel Handverletzungen durch die rotierenden Gebläseblätter weitgehend vermieden sind. Durch die spezielle Trichterform des als Motorschutzgitter wirkenden Eingriffschutzelements ES kann in vorteilhafter Weise der freie Luftquerschnitt zwischen den einzelnen Rippen größtmöglich ausgeführt werden, und somit eine relativ geringe Behinderung des Luftstroms trotz dieser zusätzlichen Schutzmaßnahme erreicht werden.According to the invention is in the reason, that is, in the vicinity of the outlet opening of the Luftleittrichters LT, a projecting in the direction of the collecting chamber SR engagement protection element ES provided. This is preferably formed curved conical. In particular, it has a rib body with gaps for passing the air flow LF. This fin body is oriented in opposite directions to the taper of the inlet channel of the Luftleittrichters LT. In particular, it also has a funnel shape that widens in the direction of the collection chamber SR. As a result, an increase in the entrance area for the air flow LF can likewise be achieved. An undesirable pressure loss of the air flow LF during the transition from the collecting chamber SR to the suction means GB, MO is thus largely avoided. By this rib-shaped engagement protection element ES, the operator is prevented from entering the fan unacceptably into the fan, so that, for example, hand injuries caused by the rotating fan blades are largely avoided. Due to the special funnel shape of acting as a motor protection grille engagement protection element ES can advantageously the free air cross section between the individual ribs are executed as possible, and thus a relatively small obstruction of the air flow despite this additional protective measure can be achieved.

Zusammenfassend betrachtet ist es also zweckmäßig, aus Sicherheitsgründen in der Trichtermitte des Luftleittrichters LT, das heißt zur Öffnung zum Gebläse hin, Schutzrippen in Form eines domartigen, in Richtung der Sammelkammer SR abstehenden Eingriffsschutzelements ES vorzusehen. Neben der sich in Richtung der Sammelkammer SR domartig aufweitenden Form des Eingriffsschutzelements ES können gegebenenfalls auch anders geformte Rippenkörper ebenfalls eine Sicherheitsfunktion erfüllen.In summary, it is therefore expedient, for reasons of safety, to provide protective ribs in the form of a dome-like engagement protection element ES projecting in the direction of the collecting chamber SR in the middle of the funnel of the air-guiding funnel LT, that is to say towards the opening towards the fan. In addition to the dome-widening shape of the engagement protection element ES in the direction of the collection chamber SR, differently shaped ribbed bodies may optionally also fulfill a safety function.

Zweckmäßigerweise steht das domartige Eingriffsschutzelement ES in Richtung der Sammelkammer SR lediglicht so weit ab, daß seine Außenkontur bündig mit der Eintrittsfläche RE des Luftleittrichters LT abschließt. Dadurch kann in vorteilhafter Weise zusätzlich mindestens ein Filterelement FI vor der Eintrittsöffnung des Luftleittrichters LT mittels zweier seitlich von der Eintrittsfläche RE des Luftleittrichters LT angeordneter Stegklemmen SI1, SI2 angebracht werden. Dieses Filterelement FI dient zur weiteren Reinigung der Abluft LF, die aus dem Staubraum SR abgezogen wird. Es kann insbesondere als Pollen- oder Allergikerfilter ausgebildet sein. Ein oder mehrere Filtervliese FIV werden dort vorzugsweise zwischen die beiden Hälften eines heftartigen Haltegitters HF eingeklemmt. Dies ist in der Figur 5 dargestellt, wo die übrigen Komponenten des Staubsaugers in zerlegtem Zustand dargestellt sind.Conveniently, the dome-like engagement protection element ES in the direction of the collecting chamber SR only light so far that its outer contour is flush with the entry surface of the RE Luftleittrichters LT. As a result, in addition advantageously at least one filter element FI can be mounted in front of the inlet opening of the air guide funnel LT by means of two web clamps SI1, SI2 arranged laterally from the entry face RE of the air guide funnel LT. This filter element FI is used for further purification of the exhaust air LF, which is withdrawn from the dust chamber SR. It may be designed in particular as a pollen or allergic filter. One or more filter webs FIV are preferably clamped between the two halves of a booklet-like holding grid HF. This is in the FIG. 5 represented where the other components of the vacuum cleaner are shown in disassembled state.

Gegebenenfalls kann es zweckmäßig sein, die Trennwand TW, den Luftleittrichter LT, und/oder dessen vorgesetztes Eingriffsschutzelement ES als einstückiges Bauteil auszubilden. Genauso kann es aber auch zweckmäßig sein, diese drei Komponenten als Einzelbauteile zu fertigen und dann mechanisch aneinander zu koppeln.Optionally, it may be expedient to form the partition wall TW, the Luftleittrichter LT, and / or its superior engagement protection element ES as a one-piece component. Equally, however, it may also be expedient to manufacture these three components as individual components and then to mechanically couple them to one another.

Insbesondere kann also der Luftleittrichter fest, das heißt direkt in das Kunststoffgehäuse der Trennwand zwischen dem Staubraum und Motorraum integriert sein. Auf der Motorraumseite wird dann der Motor bzw. das zugehörige Gebläse zweckmäßig über Gummiteile an die Austrittsöffnung des Luftleittrichters angekoppelt und abgedichtet. Gemäß einer weiteren Variante kann der Luftleittrichter gegebenenfalls als Zusatzteil auf dem Motor bzw. die Gebläsehaube gesteckt werden. Die ganze Einheit wird dann über Gummiteile bekannter Art im Gerätekörper angekoppelt und abgedichtet. Bei bisherigen Bauweisen konnte die Saugluft nur um sehr starke Krümmungen aus dem Staubraum in das Gebläse gelangen. Durch den Luftleittrichter wird nun die Luft strömungsgünstig aus dem Staubraum in das Gebläse geführt. Dieser Luftleittrichter wird vorteilhafterweise im Staubraum zur Vergrößerung der Eintrittsfläche als Rechteck ausgeführt. Die Trichterform verläuft dabei vorzugsweise zügig und ohne Kontursprung auf den runden Durchmesser der Gebläseeintrittsöffnung zu. Aus Sicherheitsgründen können in der Trichtermitte (Öffnung zum Gebläse) Schutzrippen angebracht sein. Der Rippenkörper ist dabei zweckmäßigerweise gegenläufig zum Luftleittrichter nach außen in Richtung auf den Staubraum zu trichterförmig ausgebildet. Durch diese spezielle Trichterform des Motorschutzgitters (Rippenkörpers) kann der freie Luftquerschnitt zwischen den einzelnen Rippen größtmöglich ausgeführt bzw. eine relativ geringere Behinderung des Luftstromes erreicht werden. Dadurch ist insgesamt eine Steigerung der Luftleistung und somit eine Erhöhung der Abgabeleistung des jeweiligen Staubsaugers ermöglicht.In particular, therefore, the Luftleittrichter fixed, ie be integrated directly into the plastic housing of the partition between the dust chamber and the engine compartment. On the engine compartment side of the engine or the associated fan is then suitably coupled via rubber parts to the outlet opening of the Luftleittrichters and sealed. According to a further variant of the air duct funnel may be plugged as an additional part on the engine or the fan hood. The whole unit is then over Rubber parts of known type coupled in the device body and sealed. In previous designs, the suction air could reach only very strong curvatures from the dust chamber in the blower. Through the air funnel now the air is streamlined out of the dust chamber into the fan. This spoiler funnel is advantageously designed in the dust chamber to increase the entrance surface as a rectangle. The funnel shape preferably runs swiftly and without a contour jump towards the round diameter of the blower inlet opening. For safety reasons, protective ribs may be installed in the funnel center (opening to the fan). The ribbed body is expediently designed to be funnel-shaped in the opposite direction to the air-conducting funnel outward in the direction of the dust space. Due to this special funnel shape of the motor protection grid (ribbed body), the free air cross section between the individual ribs can be made as large as possible or a relatively smaller obstruction of the air flow can be achieved. As a result, an overall increase in air capacity and thus an increase in the output of the respective vacuum cleaner is possible.

Claims (12)

  1. Vacuum cleaner (SS) for sucking up and collecting particles (ST) in at least one collecting chamber (SR), with at least one receiving chamber (MR) for suction means (MO, GB) comprising a fan (GB) driven by a motor (MO), wherein the collecting chamber (SR) and the receiving chamber (MR) are separated from one another by a partition wall (TW) which has an inlet opening for an air flow (LF) from the collecting chamber (SR) to the suction means (MO, GB) and wherein the partition wall (TW) has, as inlet opening for coupling of the collecting chamber (SR) to the suction means (MO, GB) of the receiving chamber (MR), an air guide funnel (LT) which narrows from its entry surface (RE) at the collecting chamber (SR) in direction towards the suction means (MO, GB) and the entry area (RE) of which forms the substantial part of the partition wall area (TW), characterised in that the air guide funnel (LT) has in its funnel base an intrusion protection element (ES) which is formed by a ribbed body, which widens in dome-like manner or is otherwise shaped in direction towards the collecting chamber (SR) and which has gaps for substantially unobstructed passage of the air flow (LF) from the collecting chamber (SR) to the suction means (MO, GB), the protective ribs of the element protruding in the funnel centre of the air guide funnel (LT), i.e. towards the opening to the fan (GB), in direction towards the collecting chamber (SR).
  2. Vacuum cleaner (SS) according to claim 1, characterised in that the intrusion protection element (ES) protrudes in the direction of the collecting chamber (SR) only to such an extent that its outer contour is flush with the entry area (RE) of the air guide funnel (LT).
  3. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that the air guide funnel (LT) is integrated in the partition wall (TW) as an independent component.
  4. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that the partition wall (TW), the air guide funnel (LT) and the intrusion protection element (ES) can be made as individual components and mechanically coupled together.
  5. Vacuum cleaner (SS) according to any one of claims 1 to 4, characterised in that the partition wall (TW), the air guide funnel (LT) and/or the intrusion protection element (ES) forms or form an integral component produced in common.
  6. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that the air guide funnel (LT) is provided with respect to its entry area in the partition wall (TW) in such a manner that an approximately rectilinear suction air flow (LF) is provided from the collecting chamber (SR) to the suction means (MO, GB) in the receiving chamber (MR).
  7. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that the air guide funnel (LT) has a substantially rectangular entry area on sides of the collecting chamber (SR).
  8. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that the air guide funnel (LT) substantially constantly narrows in direction towards the suction means (MO, GB).
  9. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that the air guide funnel (LT) has an exit area which is formed to be substantially circularly round and has a diameter which substantially corresponds with the inlet opening of the fan (GB) of the suction means.
  10. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that a filter bag (PF) for collecting the particles (ST) is provided in the collecting chamber (SR).
  11. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that at least one additional filter element (FI) for cleaning the air flow (LF) from the collecting chamber (SR) to the suction means (MO, GB) is provided in front of the entry area of the air guide funnel (LT).
  12. Vacuum cleaner (SS) according to any one of the preceding claims, characterised in that the entry area (RE) of the air guide funnel (LT) occupies at least 50%, preferably between 70 and 80%, of the total area of the partition wall.
EP02777164.1A 2001-10-01 2002-09-20 Vacuum cleaner Expired - Lifetime EP1434512B9 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10183134.5A EP2275016B1 (en) 2001-10-01 2002-09-20 Suction cleaner for aspirating and collecting particles
EP09157712.2A EP2090209B1 (en) 2001-10-01 2002-09-20 Canister suction cleaner for aspirating and collecting particles

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10148509 2001-10-01
DE10148509A DE10148509B4 (en) 2001-10-01 2001-10-01 Canister
PCT/EP2002/010601 WO2003028517A2 (en) 2001-10-01 2002-09-20 Device for aspirating particles to be collected and a cylinder vacuum cleaner

Related Child Applications (4)

Application Number Title Priority Date Filing Date
EP10183134.5A Division-Into EP2275016B1 (en) 2001-10-01 2002-09-20 Suction cleaner for aspirating and collecting particles
EP10183134.5A Division EP2275016B1 (en) 2001-10-01 2002-09-20 Suction cleaner for aspirating and collecting particles
EP09157712.2A Division EP2090209B1 (en) 2001-10-01 2002-09-20 Canister suction cleaner for aspirating and collecting particles
EP09157712.2A Division-Into EP2090209B1 (en) 2001-10-01 2002-09-20 Canister suction cleaner for aspirating and collecting particles

Publications (4)

Publication Number Publication Date
EP1434512A2 EP1434512A2 (en) 2004-07-07
EP1434512B1 true EP1434512B1 (en) 2009-04-15
EP1434512B2 EP1434512B2 (en) 2019-06-05
EP1434512B9 EP1434512B9 (en) 2019-11-13

Family

ID=7701063

Family Applications (3)

Application Number Title Priority Date Filing Date
EP02777164.1A Expired - Lifetime EP1434512B9 (en) 2001-10-01 2002-09-20 Vacuum cleaner
EP10183134.5A Expired - Lifetime EP2275016B1 (en) 2001-10-01 2002-09-20 Suction cleaner for aspirating and collecting particles
EP09157712.2A Expired - Lifetime EP2090209B1 (en) 2001-10-01 2002-09-20 Canister suction cleaner for aspirating and collecting particles

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP10183134.5A Expired - Lifetime EP2275016B1 (en) 2001-10-01 2002-09-20 Suction cleaner for aspirating and collecting particles
EP09157712.2A Expired - Lifetime EP2090209B1 (en) 2001-10-01 2002-09-20 Canister suction cleaner for aspirating and collecting particles

Country Status (13)

Country Link
US (1) US7367084B2 (en)
EP (3) EP1434512B9 (en)
CN (1) CN100473319C (en)
AT (1) ATE428341T1 (en)
AU (1) AU2002338745A1 (en)
CZ (1) CZ304644B6 (en)
DE (3) DE10148509B4 (en)
DK (1) DK2275016T3 (en)
ES (3) ES2799410T3 (en)
HU (1) HU228972B1 (en)
PL (1) PL201647B1 (en)
PT (1) PT2275016T (en)
WO (1) WO2003028517A2 (en)

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DE502005010110D1 (en) 2004-05-17 2010-09-30 Miele & Cie VACUUM CLEANER
DE102004046384B4 (en) * 2004-09-24 2009-06-18 Stein & Co Gmbh Device for filter bags of vacuum cleaners
KR100569351B1 (en) * 2004-12-27 2006-04-07 엘지전자 주식회사 Nozzle parking structure of vacuum cleaner
SE531125C2 (en) * 2007-01-19 2008-12-23 Electrolux Ab Improvements in air flow losses in a vacuum cleaner
DE102008041228A1 (en) 2008-08-13 2010-02-18 BSH Bosch und Siemens Hausgeräte GmbH vacuum cleaner
DE102008041220A1 (en) * 2008-08-13 2010-02-18 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner and insert part of a vacuum cleaner
DE102010001140B4 (en) 2009-12-30 2012-03-15 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner with mesh guard
DE102010001139B4 (en) 2009-12-30 2013-03-07 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner with intervention protection element
DE202009017629U1 (en) 2009-12-30 2011-05-12 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner with intervention protection element
DE202009017628U1 (en) 2009-12-30 2011-05-12 BSH Bosch und Siemens Hausgeräte GmbH Vacuum cleaner with mesh guard
ES2713074T3 (en) 2011-03-22 2019-05-17 Eurofilters Nv Ecologically efficient device for dust extraction
DE102011083436B4 (en) 2011-09-26 2020-07-09 BSH Hausgeräte GmbH Frame for a dust filter of a vacuum cleaner
DE102011054288A1 (en) * 2011-10-07 2013-04-11 Miele & Cie. Kg Protective relay of motor filter holder for floor vacuum cleaner, has support fabric layer for supporting the protective relay arranged between the dust chamber and engine room of the vacuum cleaner
CN106419739A (en) * 2016-10-09 2017-02-22 无锡宏纳科技有限公司 Low-position ventilating and dust removing device for integrated circuit production workshop

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Also Published As

Publication number Publication date
EP2090209A1 (en) 2009-08-19
US7367084B2 (en) 2008-05-06
ES2324157T5 (en) 2020-02-19
CZ2004445A3 (en) 2005-01-12
AU2002338745A1 (en) 2003-04-14
EP1434512B2 (en) 2019-06-05
DE10148509A1 (en) 2003-04-17
ES2799410T3 (en) 2020-12-17
EP2090209B1 (en) 2016-01-06
DK2275016T3 (en) 2020-07-06
ES2562066T3 (en) 2016-03-02
CN100473319C (en) 2009-04-01
ATE428341T1 (en) 2009-05-15
HUP0401758A2 (en) 2008-04-28
US20040187251A1 (en) 2004-09-30
PT2275016T (en) 2020-06-30
DE10148509B4 (en) 2008-01-24
PL368113A1 (en) 2005-03-21
CN1561176A (en) 2005-01-05
EP1434512B9 (en) 2019-11-13
WO2003028517A3 (en) 2003-09-12
ES2324157T3 (en) 2009-07-31
DE20122492U1 (en) 2005-12-08
CZ304644B6 (en) 2014-08-20
HU228972B1 (en) 2013-07-29
EP2275016A1 (en) 2011-01-19
WO2003028517A2 (en) 2003-04-10
EP2275016B1 (en) 2020-04-01
EP1434512A2 (en) 2004-07-07
PL201647B1 (en) 2009-04-30
DE50213461D1 (en) 2009-05-28

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