EP0563869B1 - Vacuum cleaner dust bag - Google Patents

Vacuum cleaner dust bag Download PDF

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Publication number
EP0563869B1
EP0563869B1 EP93105203A EP93105203A EP0563869B1 EP 0563869 B1 EP0563869 B1 EP 0563869B1 EP 93105203 A EP93105203 A EP 93105203A EP 93105203 A EP93105203 A EP 93105203A EP 0563869 B1 EP0563869 B1 EP 0563869B1
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EP
European Patent Office
Prior art keywords
bag
sleeve
filter bag
flange part
head part
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
EP93105203A
Other languages
German (de)
French (fr)
Other versions
EP0563869A1 (en
Inventor
Rainer Oberdorfer-Bögel
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.)
WAP Reinigungssysteme GmbH and Co
Original Assignee
WAP Reinigungssysteme GmbH and Co
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
Application filed by WAP Reinigungssysteme GmbH and Co filed Critical WAP Reinigungssysteme GmbH and Co
Publication of EP0563869A1 publication Critical patent/EP0563869A1/en
Application granted granted Critical
Publication of EP0563869B1 publication Critical patent/EP0563869B1/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
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
    • 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures

Definitions

  • the invention relates to a filter bag sleeve for a vacuum cleaner, a paper bag and an enveloping film bag being applied to connecting pieces that are aligned with the inside of a vacuum cleaner in connection with mutually aligned openings.
  • the filter bag sleeve according to the invention is so far attached to a two-part filter bag arrangement consisting of a film bag and a paper bag and is from the inside of the vacuum cleaner to the outside acting inlet, which merges into a nozzle in the interior of the vacuum cleaner postponed.
  • the object of the invention is therefore to develop a filter bag sleeve of the type mentioned in such a way that the filter bag is connected to the inlet fitting in a reliable manner and, in addition, contamination of the operator is excluded.
  • the invention is characterized by the technical teaching of claim 1.
  • a slide is integrated in the filter bag sleeve, which is designed as a film slide.
  • the slide is closed, ie it is moved laterally and also engages in its end position, so that the slide valve can no longer be opened automatically.
  • the filter bag sleeve as such is further designed so that it has an additional catch on the cylindrical part of the inlet fitting.
  • additional locking tongues are designed so that they snap into a groove in the inlet fitting.
  • the filter bag sleeve is thus snapped onto the inlet fitting, which has the advantage that a form-fitting and thus also mechanically safe and yet easily manually detachable connection is achieved, the function of the seal between the inlet fitting and the filter bag sleeve being additionally sealed into a groove on the inlet fitting nozzle , inserted sealing ring (O-ring). It is also essential that the film slide is guided in a sealed manner in the space between the flange part and the head part.
  • the sealing is preferably carried out via lip seals which are arranged opposite one another on the circumference of the recess in the flange and head part. These lip seals come into contact with the slide valve from both sides and seal it.
  • the film slide is operated manually by pulling it over the opening of the filter bag sleeve in the manner of a film seal.
  • Figure 1 shows the filter bag sleeve in section.
  • Figure 2 shows the flange part enlarged, partly in section.
  • Figure 3 shows the flange part in plan view.
  • Figure 4 shows the flange part in side view.
  • Figure 5 shows the headboard in plan view.
  • Figure 6 shows the head part, partly in section, in a side view.
  • Figure 7 shows the slide valve in plan view.
  • FIG 1 it can be seen that a head part 7 according to Figure 5 and Figure 6 is glued to the outside of the filter bag 6, which in turn can be covered on the outside by a slide 4 according to Figure 7.
  • This slide 4 is slidably guided along latching feet 18 on the head part 7, the guide on the other side being formed by a corresponding surface of a flange part 5.
  • the flange part 5 and the head part 7 are held together by snap connections.
  • the flange part 5 according to FIG. 1 forms an opening 14 through which the dirt is let into the filter bag 6.
  • the flange part 5 has a tubular extension, on the inside of which two detents 8 are arranged, distributed around the circumference, with which the flange part 5 is snapped onto an associated groove in the region of the inlet fitting, not shown.
  • an O-ring is also arranged in a manner known per se, which lies against the inside of the tubular flange part 5.
  • the flange part 5 On the outer circumference, the flange part 5 according to FIG. 2 has a groove 12 in which a plastic bag 10 is held. The mounting is done in that a clamping ring 13 engages in this groove and clamps the plastic bag 10.
  • the head part 7 according to FIGS. 5 to 6 consists of a pre-bent part, which should adapt to the shape of the flange part 5 as far as possible in order to ensure that the film slide 4 fits snugly against this leaf-shaped head part 7.
  • the pre-bend also makes the necessary dust tightness between the head part 7 and the slide 4 achieved, as well as an inhibiting effect that prevents the slide valve from being accidentally moved.
  • the pre-bending also results in a permanent prestress for the snap-in connection of flange part 5 and head part 7.
  • the head part defines an inner opening 17 which is substantially aligned with the opening 14 of the flange part 5.
  • latching feet 18 are formed on one side of the head part 7.
  • latching feet have hook-shaped lugs which engage in associated recesses 19 in the flange part 5 according to FIG. 3.
  • a dome 25 is attached, which cooperates with the grip hole 26 of the slide 4. So that in addition to the clamping effect by the pre-bending of the head part 7 accidental and unintentional closing of the slide 4 prevented and the slide 4 of Figure 5 is thus locked in the open position on the head part 7 of Figure 5.
  • the entire filter bag sleeve consisting of the head part 7, the flange part 5 and the film slide 4, consists of a plastic material that can be optimally glued to the paper material of the filter bag 6.
  • lip seals 9 (FIG. 1, 2) are present, which are arranged on the circumference of the recess in the head part 7 and the flange part 5 and which seal (frictionally) from both sides against the film slide 4.

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

Abstract

A vacuum cleaner dust bag sleeve is described, wherein a paper bag and a surrounding plastic bag are fitted onto the inwardly acting nozzle of an inlet fitting from the inside of the vacuum cleaner in conjunction with mutually flush apertures via mutually engaged flange and top parts with an integrated closure slide. A further advantage of this embodiment consists in the fact that this dust bag sleeve with the slide 4 and clamping ring 3 can also be used to produce a disposal bag, consisting of polyethylene film or the like. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Filtersackmuffe für einen Schmutzsauger, wobei auf den innenseitigen Stutzen eines Schmutzsaugers in Verbindung mit miteinander fluchtenden Öffnungen ein Papiersack und ein umhüllender Foliensack über staubdicht wirkende Verbindungsteile aufgebracht wird.The invention relates to a filter bag sleeve for a vacuum cleaner, a paper bag and an enveloping film bag being applied to connecting pieces that are aligned with the inside of a vacuum cleaner in connection with mutually aligned openings.

Die Filtersackmuffe nach der Erfindung ist insoweit an einer zweiteilig wirkenden Filtersackanordnung, bestehend aus einem Foliensack und aus einem Papiersack, befestigt und wird von der Innenseite des Schmutzsaugers her auf den von außen wirkenden Einlaß, der in den Innenbereich des Schmutzsaugers in einen Stutzen übergeht, vollständig aufgeschoben.The filter bag sleeve according to the invention is so far attached to a two-part filter bag arrangement consisting of a film bag and a paper bag and is from the inside of the vacuum cleaner to the outside acting inlet, which merges into a nozzle in the interior of the vacuum cleaner postponed.

Nach dem Stand der Technik war bisher am Filtersack eine einfache, ringförmige Muffe vorgesehen, die konisch ausgeführt war und die auf einem konischen Hals einfach aufgesteckt war. Diese Ausführungsform hatte den Nachteil, daß bei nicht maßgenauen Teilen, wenn z.B. die Filtersackmuffe maßlich Übermaß hatte, keine sichere Befestigung am Einlaßfitting sichergestellt war. Der dritte Nachteil dieser bekannten Muffe war, daß vor dem Abziehen der Filtersackmuffe vom Einlaßfitting die Filtersackmuffe nicht verschlossen werden konnte und wenn in diesem Filtersack gesundheitsgefährlicher Staub oder giftiger Staub eingesogen war, dann konnte beim Abziehen der Muffe vom Einlaß dieser gesundheitsgefährliche Staub austreten und somit die Bedienperson damit beeinträchtigen.According to the prior art, a simple, ring-shaped sleeve was previously provided on the filter bag, which was designed conically and which was simply plugged onto a conical neck. This embodiment had the disadvantage that in the case of parts which are not dimensionally accurate, e.g. the filter bag sleeve was oversized, no secure attachment to the inlet fitting was ensured. The third disadvantage of this known sleeve was that before the filter bag sleeve was removed from the inlet fitting, the filter bag sleeve could not be closed and if harmful dust or toxic dust was sucked into this filter bag, then when removing the sleeve from the inlet, this hazardous dust could escape and thus the Affect the operator.

Der zweite Nachteil dieser kraftschlüssigen Ausführungsform war, daß zum Aufstecken der Muffe hohe Kräfte angewendet werden mußten, um einen sicheren Halt auf dem Stutzen zu gewährleisten. Die Betriebssicherheit war also nicht konstruktionsbedingt, sondern abhängig von der Bedienperson.The second disadvantage of this non-positive embodiment was that high forces had to be applied to attach the sleeve to one to ensure a secure hold on the nozzle. The operational safety was therefore not due to the design, but dependent on the operator.

Die Aufgabe der Erfindung liegt deshalb darin, eine Filtersackmuffe der genannten Art so weiterzubilden, daß der Filtersack auf betriebssichere Weise mit dem Einlaßfitting verbunden wird, und außerdem eine Kontamination der Bedienperson ausgeschlossen wird.The object of the invention is therefore to develop a filter bag sleeve of the type mentioned in such a way that the filter bag is connected to the inlet fitting in a reliable manner and, in addition, contamination of the operator is excluded.

Zur Lösung der gestellten Aufgabe ist die Erfindung durch die technische Lehre des Anspuches 1 gekennzeichnet.To achieve the object, the invention is characterized by the technical teaching of claim 1.

Ein weiteres wesentliches Merkmal der Erfindung ist, daß in die Filtersackmuffe ein Schieber integriert ist, der als Folienschieber ausgebildet ist. Bevor die Filtersackmuffe vom Einlaßfitting genommen wird, wird der Schieber geschlossen, d.h. er wird seitlich verschoben und rastet in seiner Endstellung noch zusätzlich ein, so daß ein selbsttätiges Öffnen des Folienschiebers nicht mehr möglich ist. Die Filtersackmuffe als solche ist im weiteren so ausgebildet, daß sie einen zusätzlichen Rast auf dem zylindrisch ausgebildeten Teil des Einlaßfittings hat. Dazu sind zusätzliche Rastzungen so ausgebildet, daß sie in eine Nut des Einlaßfittings einrasten. Die Filtersackmuffe wird also an dem Einlaßfitting eingerastet, womit der Vorteil besteht, daß eine formschlüssige und damit auch mechanisch sichere und doch manuell leicht lösbare Verbindung erzielt wird, wobei die Funktion der Abdichtung zwischen Einlaßfitting und Filtersackmuffe von einem zusätzlich, in eine Nut auf dem Einlaßfittingstutzen, eingelegten Dichtring (O-Ring) übernommen wird. Weiterhin ist wesentlich, daß der Folienschieber abgedichtet im Zwischenraum zwischen dem Flanschteil und dem Kopfteil verschiebbar geführt ist. Die Abdichtung erfolgt bevorzugt über Lippendichtungen, die einander gegenüberliegend am Umfang der Ausnehmung im Flansch- und Kopfteil angeordnet sind. Diese Lippendichtungen legen sich von beiden Seiten her an den Folienschieber an und dichten diesen ab.Another essential feature of the invention is that a slide is integrated in the filter bag sleeve, which is designed as a film slide. Before the filter sack sleeve is removed from the inlet fitting, the slide is closed, ie it is moved laterally and also engages in its end position, so that the slide valve can no longer be opened automatically. The filter bag sleeve as such is further designed so that it has an additional catch on the cylindrical part of the inlet fitting. For this purpose, additional locking tongues are designed so that they snap into a groove in the inlet fitting. The filter bag sleeve is thus snapped onto the inlet fitting, which has the advantage that a form-fitting and thus also mechanically safe and yet easily manually detachable connection is achieved, the function of the seal between the inlet fitting and the filter bag sleeve being additionally sealed into a groove on the inlet fitting nozzle , inserted sealing ring (O-ring). It is also essential that the film slide is guided in a sealed manner in the space between the flange part and the head part. The sealing is preferably carried out via lip seals which are arranged opposite one another on the circumference of the recess in the flange and head part. These lip seals come into contact with the slide valve from both sides and seal it.

Der Folienschieber wird handbetätigt, indem er nach Art eines Folienverschlusses über die öffnung der Filtersackmuffe gezogen wird.The film slide is operated manually by pulling it over the opening of the filter bag sleeve in the manner of a film seal.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellende Zeichnungen näher erläutert. Hierbei gehen aus den Zeichnungen und ihrer Beschreibung weitere wesentliche Merkmale und Vorteile der Erfindung hervor.The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. Further essential features and advantages of the invention emerge from the drawings and their description.

Figur 1 zeigt hierbei die Filtersackmuffe im Schnitt.Figure 1 shows the filter bag sleeve in section.

Figur 2 zeigt das Flanschteil vergrößert, teilweise im Schnitt.Figure 2 shows the flange part enlarged, partly in section.

Figur 3 zeigt das Flanschteil in Draufsicht.Figure 3 shows the flange part in plan view.

Figur 4 zeigt das Flanschteil in Seitenansicht.Figure 4 shows the flange part in side view.

Figur 5 zeigt das Kopfteil in Draufsicht.Figure 5 shows the headboard in plan view.

Figur 6 zeigt das Kopfteil teilweise im Schnitt in Seitenansicht.Figure 6 shows the head part, partly in section, in a side view.

Figur 7 zeigt den Folienschieber in Draufsicht.Figure 7 shows the slide valve in plan view.

In Figur 1 ist erkennbar, daß auf der Außenseite des Filtersackes 6 ein Kopfteil 7 nach Figur 5 und Figur 6 aufgeklebt ist, welches wiederum an seiner Außenseite von einem Folienschieber 4 nach Figur 7 abdeckbar ist. Dieser Folienschieber 4 ist verschiebbar entlang Rastfüßen 18 auf dem Kopfteil 7 geführt, wobei die Führung auf der anderen Seite durch eine entsprechende Fläche eines Flanschteiles 5 gebildet ist.In Figure 1 it can be seen that a head part 7 according to Figure 5 and Figure 6 is glued to the outside of the filter bag 6, which in turn can be covered on the outside by a slide 4 according to Figure 7. This slide 4 is slidably guided along latching feet 18 on the head part 7, the guide on the other side being formed by a corresponding surface of a flange part 5.

Das Flanschteil 5 und das Kopfteil 7 werden durch Schnappverbindungen zusammengehalten.The flange part 5 and the head part 7 are held together by snap connections.

Das Flanschteil 5 nach Figur 1 bildet eine Öffnung 14, durch welche der Schmutz in den Filtersack 6 eingelassen wird.The flange part 5 according to FIG. 1 forms an opening 14 through which the dirt is let into the filter bag 6.

Das Flanschteil 5 hat einen rohrförmigen Ansatz, an dem im Innenbereich zwei, am Umfang verteilt angeordnete, Rastnasen 8 angeordnet sind, mit denen das Flanschteil 5 auf eine zugeordnete Nut im Bereich des nicht dargestellten Einlaßfittings aufgeschnappt wird.The flange part 5 has a tubular extension, on the inside of which two detents 8 are arranged, distributed around the circumference, with which the flange part 5 is snapped onto an associated groove in the region of the inlet fitting, not shown.

Im Mantelbereich des Einlaßes ist ferner in ansich bekannter Weise ein O-Ring angeordnet, der sich an die Innenseite des rohrförmigen Flanschteils 5 anlegt.In the jacket area of the inlet, an O-ring is also arranged in a manner known per se, which lies against the inside of the tubular flange part 5.

Am Außenumfang weist das Flanschteil 5 nach Figur 2 eine Nut 12 auf, in welcher ein Kunststoffsack 10 gehalten wird. Die Halterung erfolgt hierbei dadurch, daß in diese Nut ein Spannring 13 eingreift und hierbei den Kunststoffsack 10 verklammert.On the outer circumference, the flange part 5 according to FIG. 2 has a groove 12 in which a plastic bag 10 is held. The mounting is done in that a clamping ring 13 engages in this groove and clamps the plastic bag 10.

Damit ist es möglich, zusätzlich zu dem in der Regel aus Papier bestehenden Filtersack 6 noch einen Kunststoffsack 10 zu verwenden, der eine staubfreie Entsorgung des Filtersackes 6 gewährleistet.This makes it possible to use a plastic bag 10 in addition to the filter bag 6, which generally consists of paper, which ensures dust-free disposal of the filter bag 6.

Die Verklammerung zwischen dem Flanschteil 5 und dem Kopfteil 7 erfolgt durch entsprechende Rastverbindungen, die anhand der Figuren 3 bis 6 näher beschrieben werden.The clamping between the flange part 5 and the head part 7 takes place by means of corresponding latching connections, which are described in more detail with reference to FIGS. 3 to 6.

In Figur 4 ist die Seitenansicht des Flanschteils 5 dargestellt, wo eine Rastnase 8 definiert wird, die durch eine entsprechende Freistanzung herausgestellt ist.In Figure 4, the side view of the flange part 5 is shown, where a locking lug 8 is defined, which is highlighted by a corresponding punching.

Das Kopfteil 7 gemäss den Figuren 5 bis 6 besteht aus einem vorgebogenen Teil, welches sich möglichst der Formgebung des Flanschteils 5 anpassen soll, um eine satte Anlage des Folienschiebers 4 an diesem blattförmigen Kopfteil 7 zu gewährleisten. Durch die Vorbiegung wird außerdem die notwendige Staubdichtheit zwischen Kopfteil 7 und Folienschieber 4 erreicht, sowie eine Hemmwirkung, die ein versehentliches Verschieben des Folienschiebers verhindert. Durch die Vorbiegung ergibt sich außerdem eine dauerhafte Vorspannung für die Rastverbindung von Flanschteil 5 und Kopfteil 7.The head part 7 according to FIGS. 5 to 6 consists of a pre-bent part, which should adapt to the shape of the flange part 5 as far as possible in order to ensure that the film slide 4 fits snugly against this leaf-shaped head part 7. The pre-bend also makes the necessary dust tightness between the head part 7 and the slide 4 achieved, as well as an inhibiting effect that prevents the slide valve from being accidentally moved. The pre-bending also results in a permanent prestress for the snap-in connection of flange part 5 and head part 7.

Das Kopfteil definiert hierbei eine innere Öffnung 17, die mit der Öffnung 14 des Flanschteiles 5 im wesentlichen fluchtet.The head part defines an inner opening 17 which is substantially aligned with the opening 14 of the flange part 5.

An der einen Seite des Kopfteils 7 sind hierbei Rastfüße 18 angeformt.Here, latching feet 18 are formed on one side of the head part 7.

Diese Rastfüße weisen hakenförmige Ansätze auf, die in zugeordnete Ausnehmungen 19 im Flanschteil 5 nach Figur 3 eingreifen.These latching feet have hook-shaped lugs which engage in associated recesses 19 in the flange part 5 according to FIG. 3.

Zur Montage sind Fixierzapfen 20 nach Figur 6 vorhanden, die in entsprechende Bohrungen 21 im Flanschteil 5 eingreifen. Die Führung des Folienschiebers 4, der in Figur 7 in Draufsicht gezeigt ist, erfolgt nun so, daß er zwischen den Rastnasen 18 gerade geführt wird, und zwar in Pfeilrichtung 21a. Der Folienschieber 4 liegt also mit seinen seitlichen Kanten 22 an der Innenseite der Rastfüße 18 an. Es ist hierbei ein Anschlag 23 vorhanden, der verhindert, daß der Schieber vollständig aus der Führung zwischen dem Kopfteil 7 und dem Flanschteil 5 herausgezogen werden kann. Diese Anschläge 23 schlagen hierbei an den Rastfüßen 18 nach Figur 5 an. Zwei Verriegelungsnocken 24 auf dem Kopfteil 7 verhindern dann, daß der Folienschieber - wenn er einmal zugezogen ist - wieder aufgezogen werden kann, wodurch gesorgt wird, daß die Anschläge 23 im Zwischenraum zwischen der Nocke 24 und der jeweiligen Rastnase 18 zum Liegen kommen.For mounting, there are fixing pins 20 according to FIG. 6 which engage in corresponding bores 21 in the flange part 5. The slide 4, which is shown in plan view in FIG. 7, is now guided in such a way that it is guided straight between the detents 18, in the direction of the arrow 21a. The film slide 4 is thus with its lateral edges 22 on the inside of the locking feet 18. There is a stop 23 here, which prevents the slide from being completely pulled out of the guide between the head part 7 and the flange part 5. These stops 23 abut the latching feet 18 according to FIG. 5. Two locking cams 24 on the head part 7 then prevent the slide valve - once it is closed - from being pulled up again, thereby ensuring that the stops 23 come to rest in the space between the cam 24 and the respective catch 18.

Damit wird ein sicherer Verschluß der Filtersackmuffe bei einem einmal geschlossenen Folienschieber 4 gewährleistet.This ensures that the filter bag sleeve is securely closed when the film slide 4 is closed.

Auf der Oberfläche des Kopfteiles 7 ist eine Kuppe 25 angebracht, die mit dem Griffloch 26 des Folienschiebers 4 zusammenwirkt. Damit wird zusätzlich zu der Klemmwirkung durch die Vorbiegung des Kopfteils 7 ein zufälliges und unbeabsichtigtes Schließen des Folienschiebers 4 verhindert und der Folienschieber 4 nach Figur 5 wird somit in Offenstellung an dem Kopfteil 7 nach Figur 5 verrastet. Das heisst, die Öffnung 27 des Folienschiebers fluchtet in Öffnungsstellung mit der Öffnung 17 des Kopfteiles und ferner mit der Öffnung 14 des Flanschteiles.On the surface of the head part 7, a dome 25 is attached, which cooperates with the grip hole 26 of the slide 4. So that in addition to the clamping effect by the pre-bending of the head part 7 accidental and unintentional closing of the slide 4 prevented and the slide 4 of Figure 5 is thus locked in the open position on the head part 7 of Figure 5. This means that the opening 27 of the film slide is aligned with the opening 17 of the head part and also with the opening 14 of the flange part in the open position.

Die gesamte Filtersackmuffe, bestehend aus dem Kopfteil 7, dem Flanschteil 5 und dem Folienschieber 4, besteht aus einem Kunststoffmaterial, das sich optimal mit dem Papiermaterial des Filtersackes 6 verkleben lässt.The entire filter bag sleeve, consisting of the head part 7, the flange part 5 and the film slide 4, consists of a plastic material that can be optimally glued to the paper material of the filter bag 6.

Der Folienschieber 4 ist abgedichtet im Zwischenraum zwischen dem Flanschteil 5 und dem Kopfteil 7 geführt. Hierfür sind Lippendichtungen 9 (Figur 1,2) vorhanden, die am Umfang der Ausnehmung im Kopfteil 7 und Flanschteil 5 angeordnet sind und die sich abdichtend (reibschlüssig) von beiden Seiten her an dem Folienschieber 4 anlegen.The film slide 4 is guided in a sealed manner in the space between the flange part 5 and the head part 7. For this purpose, lip seals 9 (FIG. 1, 2) are present, which are arranged on the circumference of the recess in the head part 7 and the flange part 5 and which seal (frictionally) from both sides against the film slide 4.

Durch die gegebene formschlüssige Einrastverbindung der Filtersackmuffe an dem Einlaßfitting wird also ein sicherer Sitz erreicht, der durch eine an sich bekannte Dichtung staubdicht ausgebildet ist. Beim Stand der Technik waren lediglich kraftschlüssige Verbindungen, nämlich konische Steckverbindungen oder Verbindungen über Elastomermembranen, vorhanden, während jetzt nach der Erfindung eine formschlüssige Rastverbindung vorhanden ist. Diese formschlüssige Rastverbindung ist zwar beim gewollten Abnehmen verhältnismässig leicht lösbar, bietet jedoch im Betrieb genügend Sicherheit gegen unbeabsichtigtes Lösen durch Unterdruckkräfte und/oder Zugkräfte durch den befüllten Filtersack. Sie ist außerdem außerordentlich staubdicht und relativ unabhängig von Fertigungstoleranzen, wobei die zusätzliche Dichtung als O-Ring noch für eine zusätzliche Abdichtung sorgt.Due to the given positive locking connection of the filter bag sleeve to the inlet fitting, a secure fit is achieved, which is made dust-tight by a seal known per se. In the prior art, there were only non-positive connections, namely conical plug connections or connections via elastomeric membranes, while now according to the invention there is a positive locking connection. This positive locking connection is relatively easy to release when you want to remove it, but in operation it offers sufficient security against unintentional loosening due to negative pressure and / or tensile forces caused by the filled filter bag. It is also extremely dust-tight and relatively independent of manufacturing tolerances, with the additional seal as an O-ring providing an additional seal.

ZEICHNUNGS-LEGENDEDRAWING LEGEND

44th
FolienschieberMembrane slide
55
FlanschteilFlange part
66
FiltersackFilter bag
77
KopfteilHeadboard
88th
RastnaseLatch
99
LippendichtungLip seal
1010th
KunststoffsackPlastic bag
1212th
NutGroove
1313
SpannringTension ring
1414
Öffnungopening
1717th
Öffnungopening
1818th
RastfußLocking foot
1919th
AusnehmungRecess
2020th
FixierzapfenFixing pin
2121
Bohrungdrilling
22a22a
PfeilrichtungArrow direction
2222
Kantenedge
2323
Anschlagattack
2424th
NockeCam
2525th
KuppeCrest
2626
GrifflochFinger hole
2727
Öffnungopening

Claims (6)

  1. A filter bag sleeve on a two-part filter bag arrangement, which can be applied onto the socket, on the inner side, of a vacuum cleaner by means of connecting pieces acting in a dust-tight manner, which sleeve has a paper bag (6) and a foil bag (10) surrounding the latter, in which the head part (7), connected with the paper bag (6) and arresting from the inner side of the paper bag (6) onto the flange composition, is connected in an arresting manner with a flange part (5), which is connected with the foil bag (10) by means of a clamping ring.
  2. A sleeve according to Claim 1, characterised in that between the flange part (5) and the head part (7) a narrow intermediate space is formed, in which a closure slider is arranged as foil slider (4) between catches.
  3. A filter bag sleeve according to Claim 2, characterised in that the flange part has a detent arrangement in the manner of a detent nose (8).
  4. A filter bag sleeve according to one of Claims 1-3, characterised in that the function of sealing between the inlet fitting and the filter bag sleeve is undertaken by a sealing ring, in particular an O-ring, placed additionally into a groove on the inlet fitting socket.
  5. A filter sleeve according to Claim 2, characterised in that the closure slider, constructed as foil slider (4), is guided so as to be slidable in a sealed manner in the intermediate space between the flange part (5) and the head part (7).
  6. A filter sleeve according to Claim 5, characterised in that the sealing of the foil slider (4) takes place by lip seals (9) which lie on both sides against the foil slider (4) and are arranged against the perimeter of the openings in the flange part (5) and head part (7).
EP93105203A 1992-04-02 1993-03-30 Vacuum cleaner dust bag Expired - Lifetime EP0563869B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9204479U DE9204479U1 (en) 1992-04-02 1992-04-02 Filter bag sleeve for a vacuum cleaner
DE9204479U 1992-04-02

Publications (2)

Publication Number Publication Date
EP0563869A1 EP0563869A1 (en) 1993-10-06
EP0563869B1 true EP0563869B1 (en) 1996-12-18

Family

ID=6878019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93105203A Expired - Lifetime EP0563869B1 (en) 1992-04-02 1993-03-30 Vacuum cleaner dust bag

Country Status (3)

Country Link
EP (1) EP0563869B1 (en)
AT (1) ATE146346T1 (en)
DE (2) DE9204479U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19911331C1 (en) * 1999-03-15 2000-05-31 Hartmut J Schneider Reusable cloth bag for vacuum cleaner has adhered edges, with conical connection to cleaner surrounded by flanged, airtight seal for bag opening
SE521544C2 (en) * 2002-03-08 2003-11-11 Electrolux Ab Apparatus and method for simultaneously separating and closing a tubular web in a vacuum cleaner
DE102018211712A1 (en) * 2018-07-13 2020-01-16 Festool Gmbh Locking device, system, particle collection arrangement and suction device
CN111084578A (en) * 2019-12-31 2020-05-01 杰之深(苏州)科技有限公司 Dust cup separating structure of dust collector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7115730A (en) * 1971-11-16 1973-05-18
NL7900622A (en) * 1979-01-26 1980-07-29 Philips Nv VACUUM CLEANER.
EP0269592A3 (en) * 1986-11-28 1988-10-19 Aktiebolaget Electrolux Multi-layer outer and inner filter dust bag arrangement for a vacuum cleaner
DE9114068U1 (en) * 1991-11-11 1992-02-06 Ringler, Bernhard, 7076 Waldstetten Collection container

Also Published As

Publication number Publication date
DE9204479U1 (en) 1993-05-19
DE59304776D1 (en) 1997-01-30
EP0563869A1 (en) 1993-10-06
ATE146346T1 (en) 1997-01-15

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