EP0280831A1 - Filtering apparatus, in particular for vacuum cleaner - Google Patents

Filtering apparatus, in particular for vacuum cleaner Download PDF

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Publication number
EP0280831A1
EP0280831A1 EP87810126A EP87810126A EP0280831A1 EP 0280831 A1 EP0280831 A1 EP 0280831A1 EP 87810126 A EP87810126 A EP 87810126A EP 87810126 A EP87810126 A EP 87810126A EP 0280831 A1 EP0280831 A1 EP 0280831A1
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EP
European Patent Office
Prior art keywords
housing
filter
filter device
filter body
parts
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Granted
Application number
EP87810126A
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German (de)
French (fr)
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EP0280831B1 (en
Inventor
Urs Müller
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Individual
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Individual
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Priority to EP87810126A priority Critical patent/EP0280831B1/en
Priority to AT87810126T priority patent/ATE77734T1/en
Priority to DE8787810126T priority patent/DE3780155D1/en
Priority to US07/033,283 priority patent/US4833753A/en
Publication of EP0280831A1 publication Critical patent/EP0280831A1/en
Application granted granted Critical
Publication of EP0280831B1 publication Critical patent/EP0280831B1/en
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    • 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
    • A47L9/102—Dust separators
    • A47L9/104—Means for intercepting small objects
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/248—Parts, details or accessories of hoses or pipes

Definitions

  • the sucked-in dust air flows through a filter made of paper or a fabric.
  • the filter dust bag must be cleaned or replaced at shorter or longer intervals, which requires a time-consuming operation.
  • vacuuming the coarse particles get into the dust bag with the dust and the removal of the same is cumbersome and unsanitary.
  • the invention relates to a filter device, in particular for vacuum cleaners, according to the preamble of patent claim 1.
  • the same is based on the task even with large dirt or Dust accumulation to ensure continuous operation, cleaning work to be carried out easily and quickly and optionally to let the flow of dust and coarse particles free or to remove the latter.
  • Another task is self-cleaning without opening the housing in which the filter is located.
  • l denotes an air guide tube serving in a conventional manner at the same time as a handle
  • 2 the suction nozzle to be guided over the surface to be cleaned
  • 3 the filter housing connected to the air guide tube l
  • l ⁇ the air guide tube, which is used for the not particularly illustrated hose and mobile Fan leads.
  • the filter housing 3 consists of at least two partially inserted housing parts 3 ⁇ , 3 Fig (Fig. 6), which have larger diameters than the air duct l.
  • the air guide tubes l, l ⁇ are connected.
  • the two parts 3 ⁇ , 3 ⁇ of the filter housing 3 can also be connected to one another by a ribbed screw sleeve 5 (FIG. 2) or with a direct injection molded internal or external thread.
  • this transverse axis 6 In the housing part 3 ⁇ is on a, this transverse axis 6, a flat, provided with holes 7, in the flow direction of the air flow, rigid filter disc 8 (Fig. 2) exchangeably mounted.
  • An end part of the axis 6 protrudes from the housing part 3 ⁇ and has a manual actuating member 9, so that the filter disk 8 can be rotated in the air flow direction indicated by arrows A.
  • the actuator 9 is in Fig. 2 and 5 a cylindrical head in Fig. 4, however, an angle lever 9 ⁇ .
  • an automatically acting diaphragm valve 10 In the area of the air flow inlet B, an automatically acting diaphragm valve 10 is fastened in the housing part 3 ⁇ by screws or rivets 11.
  • the membrane 10 Before the start of the passage of air and when decommissioning, the membrane 10 assumes the position shown in FIG. 2. If suction air gets into the filter housing 3, the diaphragm valve 10 is opened, as shown by the dashed lines in FIG. 2, and reaches the filter disk 8. Large particles carried along fall off the filter disk 8 and reach the collecting space l2, the bottom of which partly through the inner walls the housing parts 3 ⁇ , 3 ⁇ is limited. Fine particles, on the other hand, pass through the holes 7 of the filter disk 8. If the holes 7 are partially or completely blocked, the axis 6 is rotated by means of the actuating element 9 in relation to the position according to FIG. 2 by 180 degrees, so that the air flow from the rear side flows through the filter disc 8 and any foreign matter that obstructs the holes 7 completely or partially.
  • the filter housing 3 When the filter housing 3 is opened, the fan producing the air flow being switched off beforehand, the coarse parts located in the collecting space 12 can be easily removed.
  • the diaphragm valve 10 closes automatically in the position shown in FIG. 6 and prevents foreign bodies from falling back. In order to clean the filter disc, it is simply brought into the position according to FIG. 2 by means of the actuating element 9 or 9 ⁇ and the axis 6.
  • FIG. 2 shows the position of the filter disk, in which dust and coarse particles can be taken along by the air flow and pass through the filter housing, from which the latter pass through the air duct l ⁇ in the connected dust bag at the fan.
  • the filter device for vacuum cleaners is suitable for all kinds of private and industrial use and can be easily installed in both new and existing versions.
  • the filter disk 8 can be covered with a dry or wetted fabric web.
  • the fabric sheets must e.g. be attached by the frame of the filter disc.
  • the housing 3, 3 ⁇ is made of transparent, impact-resistant plastic, the amount and type of coarse parts can be determined without opening the filter.
  • the filter body 8 can be designed for coarse and fine filtering and the exchange of the same with other hole sizes can be carried out quickly and easily, in particular if the housing 3 is in three parts.
  • a second fine filter disc l3 is arranged in the housing part 3 ⁇ at a distance from the filter disc 8.
  • This fine filter disc l3 has tiny, small, not drawn holes.
  • the fine filter disk l3 is covered with a porous filter film made of paper or a fabric, which is also not particularly shown.
  • the peripheral side of the fine filter disk l3 is clamped between the contact sides l4 of the housing parts 3 ⁇ , 3 ⁇ and, in contrast to the filter disk 8, is stationary and removable. The latter is only used if necessary, especially for searching or Filtering of very fine particles used.
  • the actuator 9 for rotating the filter disc 8 is designed as a rotary switch.
  • l5 denotes a rotation lock against undesired rotation of the housing parts 3 ⁇ , 3 ⁇ to each other. These can be formed by a protruding, elastic cam on the housing part 3 ⁇ , which engages in a recess located on the housing part 3 ⁇ .
  • the valve 10 is again a conventional elastic membrane with three radial cuts.
  • the filter device can be used wherever the separation of solid particles in gaseous media is required.
  • the filter device can be assigned to any type of ventilation unit.
  • the filter device described is a small parts filter, in particular for vacuum cleaners and fans, and is preferably installed in a suction pipe, as shown in FIG. 1.
  • the same takes the entrained, mostly unintentionally sucked-in parts, such as jewelry, toy parts, screws, fibers, hair, dirt, etc., from the air flow and retains them in the housing 3.
  • the housing 3 is opened by a simple, opposite rotational movement of the housing parts 3 ⁇ , 3 ⁇ .
  • the anti-rotation lock l5 prevents the housing 3 from opening automatically during operation. Because the housing 3 is made of transparent, impact-resistant plastic, optimal control over the content is guaranteed without having to open the filter device.
  • the filter disk 8 is actuated from the outside with the actuating member 9 and, if necessary, cleans itself into the position shown in FIG. 1.
  • the membrane 10 acting as a valve closes automatically when the engine is switched off and prevents it from falling back into the air duct l ⁇ (Fig. l and 6).

Abstract

In order to permit the passage of dust and coarse particles or only the former, and to allow continuous operation, a filter disk is arranged in a housing, in the air flow direction, so that it is rotatable to different operating positions. A diaphragm-like valve can be provided upstream of the filter disk, at the inlet of the air stream in the housing. The filter disk is arranged on an axle which is mounted in the filter housing and has an actuating element for rotation. In addition to the rotatable filter disk, an additional filter disk can be arranged a distance away, the additional filter disk being designed for fine filtration and being removably clamped between two parts of the housing parts.

Description

Bei trag- und fahrbaren Staubsaugern mit elektrisch be­triebenem Ventilator strömt die angesaugte Staubluft durch einen Filter aus Papier oder einem Gewebe. Der Filterstaubsack muss je nach Gebrauch in kürzeren oder längeren Intervallen gereinigt oder ersetzt werden, was einen mit Zeitaufwand verbundenen Arbeitsgang erfordert. Beim Saugen gelangen die Grobteile mit dem Staub in den Staubsack und die Entfernung derselben ist umständlich und unhygienisch.In portable and mobile vacuum cleaners with an electrically operated fan, the sucked-in dust air flows through a filter made of paper or a fabric. Depending on the use, the filter dust bag must be cleaned or replaced at shorter or longer intervals, which requires a time-consuming operation. When vacuuming, the coarse particles get into the dust bag with the dust and the removal of the same is cumbersome and unsanitary.

Gegenstand der Erfindung ist ein Filtergerät insbeson­dere an Staubsauger, nach dem Oberbegriff des Patentan­spruches l. Derselben liegt die Aufgabe zugrunde auch bei grossem Schmutz- resp. Staubanfall einen kontinuier­lichen Betrieb zu gewährleisten, Reinigungsarbeiten leicht sowie rasch auszuführen und wahlweise den Durchfluss von Staub und Grobteilen freizulassen oder letztere auszu­scheiden. Eine weitere Aufgabe ist die Selbstreinigung ohne das Gehäuse, in welchem sich der Filter befindet, zu öffnen.The invention relates to a filter device, in particular for vacuum cleaners, according to the preamble of patent claim 1. The same is based on the task even with large dirt or Dust accumulation to ensure continuous operation, cleaning work to be carried out easily and quickly and optionally to let the flow of dust and coarse particles free or to remove the latter. Another task is self-cleaning without opening the housing in which the filter is located.

Erfindungsgemäss wird diese Aufgabe durch die im Patent­anspruch l genannten Merkmale gelöst. Vorteilhafte wei­tere Ausbildungen sind den abhängigen Patentansprüchen 2 bis ll entnehmbar.According to the invention, this object is achieved by the features mentioned in patent claim 1. Advantageous further developments can be found in the dependent patent claims 2 to 11.

Anhand der Zeichnung sind zwei Ausführungsbeispiele der Erfindung erläutert, und zwar zeigen :

  • Fig. l eine Seitenansicht eines Staubsaugers mit Filtergerät, in einem ersten Aus­führungsbeispiel,
  • Fig. 2 einen Längsschnitt, den Filterkörper in offener, das Membranventil dagegen in geschlossener Stellung, in grösserem Massstab,
  • Fig. 3 einen Querschnitt nach der Linie III-III in Fig. 2,
  • Fig. 4 die Filterscheibe allein in Frontansicht,
  • Fig. 5 einen Querschnitt in Richtung der Linie V-V in Fig. 6 ohne Filterscheibe,
  • Fig. 6 einen Längsschnitt wie Fig. 2, das Filter­gerät in Arbeitsstellung mit offenem Membranventil in einer Variante des Filtergehäuses,
  • Fig. 7 eine Seitenansicht des Filtergerätes in einem zweiten Ausführungsbeispiel,
  • Fig. 8 einen Längsschnitt desselben und
  • Fig. 9 eine Membrane in Frontansicht.
Two exemplary embodiments of the invention are explained with the aid of the drawing, namely:
  • 1 is a side view of a vacuum cleaner with filter device, in a first embodiment,
  • 2 shows a longitudinal section, the filter body in the open, the diaphragm valve in the closed position, on a larger scale,
  • 3 shows a cross section along the line III-III in FIG. 2,
  • 4 the filter disk alone in front view,
  • 5 shows a cross section in the direction of line VV in FIG. 6 without filter disk,
  • 6 shows a longitudinal section like FIG. 2, the filter device in the working position with an open membrane valve in a variant of the filter housing,
  • 7 is a side view of the filter device in a second embodiment,
  • Fig. 8 is a longitudinal section of the same and
  • Fig. 9 is a membrane in front view.

In Fig. l bis 6 bezeichnet l ein in herkömmlicher Weise zugleich als Stiel dienendes Luftleitrohr, 2 die über die zu reinigende Fläche zu führende Ansaugdüse, 3 das an das Luftleitrohr l angeschlossene Filtergehäuse und lʹ das Luftleitrohr, welches zum nicht besonders darge­stellten Schlauch und fahrbaren Ventilator führt. Das Filtergehäuse 3 besteht aus wenigstens zwei teilweise ineinander gesteckten Gehäuseteilen 3ʹ, 3ʺ (Fig. 6), welche grösseren Durchmesser besitzen als das Luftleit­rohr l. An einander gegenüberliegenden Stutzen 4 des Filtergehäuses 3, welche kleinere Weiten als letz­teres besitzen, sind die Luftleitrohre l, lʹ angeschlos­sen. Die beiden Teile 3ʹ, 3ʺ des Filtergehäuses 3 können auch durch eine an der Umfangsseite gerippte Schraubenmuffe 5 (Fig. 2) miteinander verbunden sein oder mit direkt angespritztem Innen- oder Aussengewinde.In Fig. L to 6, l denotes an air guide tube serving in a conventional manner at the same time as a handle, 2 the suction nozzle to be guided over the surface to be cleaned, 3 the filter housing connected to the air guide tube l, and lʹ the air guide tube, which is used for the not particularly illustrated hose and mobile Fan leads. The filter housing 3 consists of at least two partially inserted housing parts 3ʺ, 3 Fig (Fig. 6), which have larger diameters than the air duct l. At opposite nozzles 4 of the filter housing 3, which have smaller widths than the latter, the air guide tubes l, lʹ are connected. The two parts 3ʹ, 3ʺ of the filter housing 3 can also be connected to one another by a ribbed screw sleeve 5 (FIG. 2) or with a direct injection molded internal or external thread.

Im Gehäuseteil 3ʹ ist auf einer, diesen quer durchsetzen­den Achse 6 eine flache, mit Löchern 7 versehene, in der Strömungsrichtung des Luftstromes liegende, formfeste Filterscheibe 8 (Fig. 2) auswechselbar gelagert. Ein Endteil der Achse 6 steht aus dem Gehäuseteil 3ʹ vor und besitzt ein manuelles Betätigungsorgan 9, so dass die Filterscheibe 8 in der durch Pfeile A angedeuteten Luftströmungsrichtung drehverstellt werden kann. Das Betätigungsorgan 9 ist in Fig. 2 und 5 ein zylindrischer Kopf in Fig. 4 dagegen ein Winkelhebel 9ʹ. Im Bereich des Luftströmungseinganges B ist ein selbsttätig wirken­des Membranventil lO im Gehäuseteil 3ʺ durch Schrauben oder Nieten ll befestigt.In the housing part 3ʹ is on a, this transverse axis 6, a flat, provided with holes 7, in the flow direction of the air flow, rigid filter disc 8 (Fig. 2) exchangeably mounted. An end part of the axis 6 protrudes from the housing part 3ʹ and has a manual actuating member 9, so that the filter disk 8 can be rotated in the air flow direction indicated by arrows A. The actuator 9 is in Fig. 2 and 5 a cylindrical head in Fig. 4, however, an angle lever 9ʹ. In the area of the air flow inlet B, an automatically acting diaphragm valve 10 is fastened in the housing part 3ʺ by screws or rivets 11.

Vor Beginn des Luftdurchzuges und bei Ausserbetrieb­setzung nimmt die Membrane lO die in Fig. 2 gezeigte Stellung ein. Gelangt Saugluft in das Filtergehäuse 3 so wird das Membranventil lO geöffnet, wie die ge­strichelten Linien in Fig. 2 zeigen, und gelangt zur Filterscheibe 8. Mitgeführte Grobteile fallen von der Filterscheibe 8 ab und gelangen in den Sammelraum l2, der untenseits teilweise durch die Innenwände der Ge­häuseteile 3ʹ, 3ʺ begrenzt ist. Feinpartikel ziehen dagegen durch die Löcher 7 der Filterscheibe 8. Wenn die Löcher 7 teilweise oder ganz verstopft sind, so wird die Achse 6 mittels des Betätigungsorganes 9 inbezug zur Stellung nach Fig. 2 um l8O Grad verdreht, so dass der Luftstrom von der hinteren Seite durch die Filterscheibe 8 strömt und allfällige, die Löcher 7 ganz oder teilweise verstopfende Fremdstoffe wegzieht.Before the start of the passage of air and when decommissioning, the membrane 10 assumes the position shown in FIG. 2. If suction air gets into the filter housing 3, the diaphragm valve 10 is opened, as shown by the dashed lines in FIG. 2, and reaches the filter disk 8. Large particles carried along fall off the filter disk 8 and reach the collecting space l2, the bottom of which partly through the inner walls the housing parts 3ʹ, 3ʺ is limited. Fine particles, on the other hand, pass through the holes 7 of the filter disk 8. If the holes 7 are partially or completely blocked, the axis 6 is rotated by means of the actuating element 9 in relation to the position according to FIG. 2 by 180 degrees, so that the air flow from the rear side flows through the filter disc 8 and any foreign matter that obstructs the holes 7 completely or partially.

Bei Oeffnung des Filtergehäuses 3, wobei vorangehend der den Luftstrom erzeugende Ventilator abgestellt sein kann, lassen sich die im Sammelraum l2 befindlichen Grobteile leicht entfernen. Mit der Ausschaltung des Ventilators und den damit verbundenen Unterbrechungen des Luftstro­mes, schliesst sich das Membranventil lO selbsttätig in die Stellung gemäss Fig. 6 und verhindert das Zurück­fallen von angesammelten Fremdkörpern. Um die Filter­scheibe zu reinigen wird diese mittels des Betätigungs­organes 9 bzw. 9ʹ und der Achse 6 einfach in die Stel­lung gemäss Fig. 2 gebracht.When the filter housing 3 is opened, the fan producing the air flow being switched off beforehand, the coarse parts located in the collecting space 12 can be easily removed. When the fan is switched off and the air flow is interrupted, the diaphragm valve 10 closes automatically in the position shown in FIG. 6 and prevents foreign bodies from falling back. In order to clean the filter disc, it is simply brought into the position according to FIG. 2 by means of the actuating element 9 or 9ʹ and the axis 6.

Zufolge der Verstellmöglichkeit der Filterscheibe 8 ist eine kontinuierliche Betriebsweise des Staubsaugers ermöglicht. Reinigungsarbeiten lassen sich schneller sowie ohne Umständlichkeiten ausführen und erfordern keine handwerkliche Geschicklichkeit. Fig. 2 zeigt die Stellung der Filterscheibe, in welcher Staub und Grobteile gemeinsam durch den Luftstrom mitgenommen und das Filtergehäuse passieren können, von welch letzterem diese durch das Luftleitrohr lʹ in den angeschlossenen Staubsack beim Ventilator gelangen.As a result of the possibility of adjusting the filter disc 8, the vacuum cleaner can be operated continuously. Cleaning work can be carried out faster and without any hassle and does not require manual dexterity. Fig. 2 shows the position of the filter disk, in which dust and coarse particles can be taken along by the air flow and pass through the filter housing, from which the latter pass through the air duct lʹ in the connected dust bag at the fan.

Das Filtergerät für Staubsauger ist für privaten und industriellen Gebrauch aller Art geeignet und lässt sich leicht in neue wie auch bestehende Ausführungen einbauen.The filter device for vacuum cleaners is suitable for all kinds of private and industrial use and can be easily installed in both new and existing versions.

Bei Feinfiltrierungen lässt sich die Filterscheibe 8 mit einer trockenen oder genässten Gewebebahn belegen. Die Gewebebahnen müssen z.B. durch Randumfassungen der Fil­terscheibe befestigt sein.In the case of fine filtering, the filter disk 8 can be covered with a dry or wetted fabric web. The fabric sheets must e.g. be attached by the frame of the filter disc.

Bei einem Staubsauger, bei dem sich der Ventilator mit Staubsack unmittelbar neben der Ansaugdüse 2 im Stiel l befindet, ist das Filtergehäuse 3ʹ mit der Filterscheibe 8 zwischen den beiden Teilen l, 2 anzuordnen.In a vacuum cleaner, in which the fan with a dust bag is located directly next to the suction nozzle 2 in the handle l is located, the filter housing 3ʹ with the filter disk 8 between the two parts l, 2 to be arranged.

Da das Gehäuse 3, 3ʹ aus durchsichtigem, schlagfestem Kunststoff besteht, kann die Menge und die Art der Grob­teile festgestellt werden ohne dass der Filter geöffnet wird.Since the housing 3, 3ʹ is made of transparent, impact-resistant plastic, the amount and type of coarse parts can be determined without opening the filter.

Ohne das Gehäuse 3, 3ʹ zu öffnen wird ferner durch ein­faches Verdrehen des Filterkörpers 8 eine Selbstreini­gung bewirkt.Without opening the housing 3, 3ʹ, self-cleaning is also effected by simply rotating the filter body 8.

Der Filterkörper 8 kann zur Grob- und Feinfiltrierung ausgebildet sein und das Auswechseln desselben mit ande­ren Lochgrössen lässt sich rasch und leicht vornehmen, insbesondere wenn das Gehäuse 3 dreiteilig ist.The filter body 8 can be designed for coarse and fine filtering and the exchange of the same with other hole sizes can be carried out quickly and easily, in particular if the housing 3 is in three parts.

In Fig. 7 haben die mit Bezugszeichen belegten Teile den gleichen Sinn wie im ersten Ausführungsbeispiel nach Fig. l bis 6. Der wesentliche Unterschied besteht darin, dass im Abstand neben der Filterscheibe 8 eine zweite Feinfilterscheibe l3 im Gehäuseteil 3ʺ angeordnet ist. Diese Feinfilterscheibe l3 hat winzige, kleine, nicht gezeichnete Löcher. Die Feinfilterscheibe l3 ist mit einer, ebenfalls nicht besonders dargestellten, porösen Filterfolie aus Papier oder einem Gewebe be­spannt. Die Umfangsseite der Feinfilterscheibe l3 ist zwischen den Anliegeseiten l4 der Gehäuseteile 3ʹ, 3ʺ eingeklemmt und im Gegensatz zur Filterscheibe 8 orts­fest und wegnehmbar. Letztere wird nur bei Bedarf, ins­besondere zum Suchen resp. Filtern von sehr feinen Par­tikeln eingesetzt. Das Betätigungsorgan 9 zum Verdrehen der Filterscheibe 8 ist als Drehschalter ausgebildet. l5 bezeichnet eine Drehsicherung gegen unerwünschtes Verdrehen der Gehäuseteile 3ʹ, 3ʺ zueinander. Diese kann durch einen vorstehenden, elastischen Nocken am Gehäuseteil 3ʺ gebildet sein, welcher in eine am Gehäuse­teil 3ʹ befindliche Vertiefung eingreift. Das Ventil lO ist wiederum eine herkömmliche elastische Membrane mit drei radialen Schnitten.In Fig. 7, the parts with reference numerals have the same meaning as in the first exemplary embodiment according to FIGS. 1 to 6. The main difference is that a second fine filter disc l3 is arranged in the housing part 3ʺ at a distance from the filter disc 8. This fine filter disc l3 has tiny, small, not drawn holes. The fine filter disk l3 is covered with a porous filter film made of paper or a fabric, which is also not particularly shown. The peripheral side of the fine filter disk l3 is clamped between the contact sides l4 of the housing parts 3ʹ, 3ʺ and, in contrast to the filter disk 8, is stationary and removable. The latter is only used if necessary, especially for searching or Filtering of very fine particles used. The actuator 9 for rotating the filter disc 8 is designed as a rotary switch. l5 denotes a rotation lock against undesired rotation of the housing parts 3ʹ, 3ʺ to each other. These can be formed by a protruding, elastic cam on the housing part 3ʺ, which engages in a recess located on the housing part 3ʹ. The valve 10 is again a conventional elastic membrane with three radial cuts.

Das Filtergerät ist überall da verwendbar, wo die Aus­scheidungen fester Partikel in gasförmigen Medien ver­langt werden. Das Filtergerät lässt sich an Lüftungs­aggregaten beliebiger Art zuordnen.The filter device can be used wherever the separation of solid particles in gaseous media is required. The filter device can be assigned to any type of ventilation unit.

Das beschriebene Filtergerät ist ein Kleinteilefilter insbesondere für Staubsauger sowie Lüfter und wird vor­zugsweise in einem Saugrohr eingebaut, wie in Fig. l gezeigt. Dasselbe entnimmt dem Luftstrom die mitgeführ­ten, meistens ungewollt eingesogenen Teile, wie Schmuck, Spielzeugteile, Schräubchen, Fasern, Haare, Schmutzkör­per etc. und hält diese im Gehäuse 3 zurück. Zum Ent­nehmen der zurückgehaltenen Teile aus dem Gehäuse 3 wird letzteres durch eine einfache, entgegengesetzte Drehbe­wegung der Gehäuseteile 3ʹ, 3ʺ geöffnet. Die Drehsiche­rung l5 verhindert ein selbständiges Oeffnen des Gehäuses 3 während dem Betrieb. Weil das Gehäuse 3 aus durchsich­tigem, schlagfestem Kunststoff besteht, ist eine optimale Kontrolle über den Inhalt, ohne dass das Filtergerät ge­öffnet werden muss, gewährleistet. Die Filterscheibe 8 wird von aussen mit dem Betätigungsorgan 9 betätigt und reinigt sich bei Bedarf, in die Stellung gemäss Fig. l gebracht, selbst. Die als Ventil wirkende Membrane lO schliesst sich automatisch, wenn der Motor abgestellt wird und verhindert den Zurückfall in das Luftleitrohr lʹ (Fig. l und 6).The filter device described is a small parts filter, in particular for vacuum cleaners and fans, and is preferably installed in a suction pipe, as shown in FIG. 1. The same takes the entrained, mostly unintentionally sucked-in parts, such as jewelry, toy parts, screws, fibers, hair, dirt, etc., from the air flow and retains them in the housing 3. To remove the retained parts from the housing 3, the latter is opened by a simple, opposite rotational movement of the housing parts 3ʹ, 3ʺ. The anti-rotation lock l5 prevents the housing 3 from opening automatically during operation. Because the housing 3 is made of transparent, impact-resistant plastic, optimal control over the content is guaranteed without having to open the filter device. The filter disk 8 is actuated from the outside with the actuating member 9 and, if necessary, cleans itself into the position shown in FIG. 1. The membrane 10 acting as a valve closes automatically when the engine is switched off and prevents it from falling back into the air duct lʹ (Fig. l and 6).

Claims (11)

1. Filtergerät insbesondere an Staubsauger mit einer Saug­düse (2), einem Luftleitrohr (l, lʹ) und einem Venti­lator, dadurch gekennzeichnet, dass im Luftleitrohr (l) ein öffnenbar ausgebildetes Gehäuse (3), ein in der Strömungsrichtung (A) verdrehbarer, planer, in verschiedene Funktionsstellungen einstell­barer Filterkörper (8) verdreh- und auswechselbar an­geordnet ist, derart, dass in Querstellung des Filter­körpers zum Luftstrom (Fig. 6) nur die Staubteile, in Längsstellung (Fig. 2) dagegen die Staub- mit den Grob­teilen denselben passieren und in einer weiteren um l8O Grad verdrehten Stellung eine Reinigung beider Seiten des Filterkörpers und damit eine Selbstreini­gung bewirkt werden kann.1. Filter device, in particular on a vacuum cleaner with a suction nozzle (2), an air guide tube (l, lʹ) and a fan, characterized in that in the air guide tube (l) an openable housing (3), a rotatable in the flow direction (A), planer filter body (8) which can be set in different functional positions is arranged such that it can be rotated and exchanged such that in the transverse position of the filter body to the air flow (FIG. 6) only the dust parts, in the longitudinal position (FIG. 2) the dust parts and the coarse parts the same pass and in a further position rotated by 180 degrees, cleaning of both sides of the filter body and thus self-cleaning can be effected. 2. Filtergerät nach Anspruch l, dadurch gekenn­zeichnet, dass im Abstand neben dem Filter­körper (8) im Gehäuse (3) ein zusätzlicher Feinfilter­körper (l3) angeordnet ist (Fig. 7).2. Filter device according to claim l, characterized in that an additional fine filter body (l3) is arranged at a distance next to the filter body (8) in the housing (3) (Fig. 7). 3. Filtergerät nach den Ansprüchen l und 2, dadurch gekennzeichnet, dass der mit Löchern (7) versehene Filterkörper (8) um sich selbst drehbar an­geordnet ist.3. Filter device according to claims 1 and 2, characterized in that the filter body (8) provided with holes (7) is arranged to rotate about itself. 4. Filtergerät nach den Ansprüchen l bis 3, dadurch gekennzeichnet, dass im Bereich des Luftströmungseinganges (B) im Gehäuse (3) ein Ventil (lO) angeordnet ist.4. Filter device according to claims l to 3, characterized in that a valve (10) is arranged in the area of the air flow inlet (B) in the housing (3). 5. Filtergerät nach den Ansprüchen l bis 4, dadurch gekennzeichnet, dass der Filterkörper(8) scheibenartig ist und auf einer im Gehäuse (3) ge­lagerten Achse (6) verdrehbar angeordnet ist.5. Filter device according to claims l to 4, characterized in that the filter body (8) is disc-like and is rotatably arranged on an axis (6) mounted in the housing (3). 6. Filtergerät nach den Ansprüchen l bis 5, dadurch gekennzeichnet, dass das Gehäuse (3) mindestens zwei durch Schrauben- oder Steckmuffe (5) lösbar zueinander verbundene Gehäuseteile (3ʹ. 3ʺ) aufweist.6. Filter device according to claims 1 to 5, characterized in that the housing (3) has at least two housing parts (3ʹ. 3ʺ) detachably connected to one another by screw or plug-in sleeve (5). 7. Filtergerät nach den Ansprüchen l bis 6, dadurch gekennzeichnet, dass das Ventil (lO) ein automatisch arbeitendes Membranventil ist.7. Filter device according to claims l to 6, characterized in that the valve (10) is an automatically operating diaphragm valve. 8. Filtergerät nach den Ansprüchen l bis 7, dadurch gekennzeichnet, dass eines der Enden der Achse (6) aus dem Gehäuse (3) vorsteht und an diesem ein Betätigungsorgan (9, 9ʹ) vorgesehen ist.8. Filter device according to claims l to 7, characterized in that one of the ends of the axis (6) protrudes from the housing (3) and on this an actuator (9, 9ʹ) is provided. 9. Filtergerät nach den Ansprüchen l und 2, dadurch gekennzeichnet, dass das Gehäuse (3, 3ʹ, 3ʺ) aus durchsichtigem Werkstoff besteht, so dass die Menge und die Art der Grobteile im Filterkörper (8) von aussen gesehen und festge­stellt werden können.9. Filter device according to claims l and 2, characterized in that the housing (3, 3ʹ, 3ʺ) consists of transparent material, so that the amount and type of coarse particles in the filter body (8) can be seen and determined from the outside. lO. Filtergerät nach den Ansprüchen l und 9, dadurch gekennzeichnet, dass das Gehäuse (3, 3ʹ, 3ʺ) aus durchsichtigem, schlagfestem Kunststoff gebildet ist.lO. Filter device according to claims l and 9, characterized in that the housing (3, 3ʹ, 3ʺ) is made of transparent, impact-resistant plastic. 11. Filtergerät nach den Ansprüchen l und 2, dadurch gekennzeichnet, dass der zusätzliche Feinfilterkörper (l3) scheibenartig, ortsfest und auswechselbar im Gehäuse (3, 3ʹ, 3ʺ) durch Klemmung gehaltert ist.11. Filter device according to claims l and 2, characterized in that the additional fine filter body (l3) is disc-like, stationary and replaceable in the housing (3, 3ʹ, 3ʺ) is held by clamping.
EP87810126A 1987-03-05 1987-03-05 Filtering apparatus, in particular for vacuum cleaner Expired - Lifetime EP0280831B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP87810126A EP0280831B1 (en) 1987-03-05 1987-03-05 Filtering apparatus, in particular for vacuum cleaner
AT87810126T ATE77734T1 (en) 1987-03-05 1987-03-05 FILTERING DEVICE, ESPECIALLY TO VACUUM CLEANERS.
DE8787810126T DE3780155D1 (en) 1987-03-05 1987-03-05 FILTER DEVICE, ESPECIALLY VACUUM CLEANER.
US07/033,283 US4833753A (en) 1987-03-05 1987-04-02 Filter apparatus, in particular on vacuum cleaners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87810126A EP0280831B1 (en) 1987-03-05 1987-03-05 Filtering apparatus, in particular for vacuum cleaner

Publications (2)

Publication Number Publication Date
EP0280831A1 true EP0280831A1 (en) 1988-09-07
EP0280831B1 EP0280831B1 (en) 1992-07-01

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EP87810126A Expired - Lifetime EP0280831B1 (en) 1987-03-05 1987-03-05 Filtering apparatus, in particular for vacuum cleaner

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US (1) US4833753A (en)
EP (1) EP0280831B1 (en)
AT (1) ATE77734T1 (en)
DE (1) DE3780155D1 (en)

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DE102005036754A1 (en) * 2005-08-04 2007-02-08 Waldemar Bucko A method for preventing large particles from inhibiting the performance of a domestic vacuum cleaner has an intermediate filter between the suction head and the cleaner suction inlet
NL1034941C2 (en) * 2008-01-22 2009-07-23 Ihab Kanaan Filter housing for a vacuum cleaner, vacuum cleaner provided with such a filter housing and a method therefor.
DE102008032416B4 (en) * 2008-07-10 2012-01-05 Walter Pragst Vacuum-tube intermediate filter
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DE102005036754A1 (en) * 2005-08-04 2007-02-08 Waldemar Bucko A method for preventing large particles from inhibiting the performance of a domestic vacuum cleaner has an intermediate filter between the suction head and the cleaner suction inlet
NL1034941C2 (en) * 2008-01-22 2009-07-23 Ihab Kanaan Filter housing for a vacuum cleaner, vacuum cleaner provided with such a filter housing and a method therefor.
WO2009093896A1 (en) * 2008-01-22 2009-07-30 Ohab Kanaan Filter housing for a vacuum cleaner, vacuum cleaner provided with such a filter housing, and a method therefor
DE102008032416B4 (en) * 2008-07-10 2012-01-05 Walter Pragst Vacuum-tube intermediate filter
DE102009041728B4 (en) 2008-12-22 2022-07-07 Vorwerk & Co. Interholding Gmbh Method for operating a vacuum cleaner and moveable vacuum cleaning device

Also Published As

Publication number Publication date
DE3780155D1 (en) 1992-08-06
EP0280831B1 (en) 1992-07-01
ATE77734T1 (en) 1992-07-15
US4833753A (en) 1989-05-30

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