EP1480545A1 - Spring arrangement for the closing flap of a filter bag - Google Patents

Spring arrangement for the closing flap of a filter bag

Info

Publication number
EP1480545A1
EP1480545A1 EP03743383A EP03743383A EP1480545A1 EP 1480545 A1 EP1480545 A1 EP 1480545A1 EP 03743383 A EP03743383 A EP 03743383A EP 03743383 A EP03743383 A EP 03743383A EP 1480545 A1 EP1480545 A1 EP 1480545A1
Authority
EP
European Patent Office
Prior art keywords
closure flap
spring
spring element
arrangement according
spring arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03743383A
Other languages
German (de)
French (fr)
Other versions
EP1480545B1 (en
Inventor
Edison Fatehpour
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding 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
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP1480545A1 publication Critical patent/EP1480545A1/en
Application granted granted Critical
Publication of EP1480545B1 publication Critical patent/EP1480545B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A47L9/1454—Self-sealing closures, e.g. valves

Definitions

  • the invention relates to a spring arrangement for the closure flap of a filter bag in a vacuum cleaner.
  • the flap is used to close the entrance to the filter bag.
  • flaps that can only be closed when the vacuum cleaner is opened to change the filter bags. This is done either manually by moving a locking tab or automatically by a spring.
  • BESTATIGUNGSKOPIE Flap opening in use the z. B. open the flap as a membrane with a lever.
  • Curved leaf springs are often used, which have a degression when they are deflected to a certain extent.
  • the feathers snap through. (This effect is used in the crack frog).
  • the flap is opened further, the spring force also increases continuously with these springs.
  • each further opening increases the bending load on the spring.
  • the object of the invention is to provide a spring arrangement which allows a wide opening without a large increase in force, so that the spring is not heavily loaded.
  • the contour of the spring element should be relatively flat so that it can be easily bent around the hinge of the closure flap.
  • a very flat and also a degressive characteristic curve can be achieved, although a high locking force can still be generated at the beginning by the effective lever arm. If the fulcrum If the flap is selected appropriately and there is also a recess in the hinge, a characteristic curve is also possible that goes into the negative range. This means that the closing force is less than 0 and the closing flap remains open. To do this, the neutral
  • a recess is made in the closure flap, into which the spring element is completely immersed in the open state, so that no edge or elevation which could hinder the flow protrude beyond the closure flap.
  • a seal can be attached to the spring element, which acts between the closure flap and the filter bag. In all cases, it is advisable to choose a material for the spring element that makes it difficult or impossible for dirt to adhere. In the latter case in particular, it is advantageous if the spring element completely covers the closure flap.
  • FIG. 1 shows a spring element 10 according to the invention, installed in a filter bag 12.
  • the flat spring element 10 is fastened with its one end to the filter bag 12 and with its other end to a closure cap 14.
  • An opening angle of the closure cap 14 of approximately 45 ° is shown.
  • FIG. 2 shows the spring element 10 installed in the filter bag 12 in the state in which the closure flap 14 is closed.
  • FIG. 8 shows the prior art in which a leaf spring 16 is used.
  • the leaf spring 16 has a crown (curvature in cross section) so that the spring force drops again after a certain opening angle.
  • An opening angle of the closure flap 14 of approximately 45 ° is shown here.
  • the leaf spring 16 is effective as a spiral spring. It is advantageous that the flow is not hindered by the leaf spring 16 in this embodiment, since the air flows past on the other side of the closure flap 14.
  • the disadvantage is the heavy load on the leaf spring 16 when the closure flap 14 is opened wide.
  • Fig. 3 shows a schematic representation of the spring element 10 according to the invention, installed in the filter bag 12, wherein the closure flap 14 assumes the closed position. It can be seen that an arrangement of at least one of the fastening points of the tension spring 10, which is higher than the inner surface of the filter bag 12 and the closed flap 14 and its axis of rotation, and the spring force acts as a torque with a lever arm with respect to the hinge axis, which results in a secure Closing the flap 14 leads.
  • FIG. 4 shows the spring element according to FIG. 3 with a small opening angle of the closure flap 14. At this small opening angle, the spring element 10 does not yet rest on the hinge, but extends in the area of the hinge, irrespective of a possible attachment to the fastener. fixing points and outside the area of the hinge, freely over it.
  • FIG. 5 shows the spring element 10 according to FIGS. 3 and 4 with an opening angle of the closure flap 14 of approximately 70 °. It can be seen that with this large opening angle the spring element 10 bends around the hinge of the closure flap 14. A further opening of the closure flap 14 only leads to a very slight increase in the torque and the spring load.
  • FIG. 6 shows a version modified compared to FIG. 5 with an opening angle of the closure flap 14 of likewise approximately 70 °.
  • this version there is a recess in the hinge and in the closure flap 14, into which the spring element 10 can dip. Depending on the size of this recess, there is a torque in the opening direction from a certain opening angle, so that the closure flap 14 remains open.
  • the neutral fiber of the spring element 10 lies below the axis of rotation of the hinge of the closure flap 14.
  • A denotes a curve which drops to a low level.
  • Another curve B drops to 0 and then rises again slightly. The point where the curves drop to 0 or to the minimum can be determined simply by the geometry of the spring element attachment and the choice of spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

The invention relates to a spring arrangement for the closing flap (14) of a vacuum cleaner filter bag (12), which is characterized in that the spring element (10) is configured as an extension spring that is mounted on the side of the closing flap (14) on which it extends across the hinge thereof and which is tension-loaded when the closing flap (14) is opened. The fastening points of the spring element (10) on the closing flap (12) and on the filter bag (12) are disposed in such a manner that it freely extends across the hinge up to a defined angle of opening of the closing flap (14) and that it is bent to rest on an edge or a surface disposed on or next to the hinge axis at a greater angle of opening.

Description

Federanordnung für eine Verschlußklappe einer Filtertüte Spring arrangement for a flap of a filter bag
Die Erfindung befaßt sich mit einer Federanordnung für die Verschlußklappe einer Filtertüte bei einem Staubsauger. Die Klappe dient dazu, daß der Eintritt in die Filtertüte verschlossen wird.The invention relates to a spring arrangement for the closure flap of a filter bag in a vacuum cleaner. The flap is used to close the entrance to the filter bag.
Es gibt Verschlußklappen, die nur beim Öffnen des Staubsau- gers zum Wechseln der Filtertüten verschlossen werden. Dies geschieht entweder manuell durch Verschieben einer Verschlußlasche oder automatisch durch eine Feder.There are flaps that can only be closed when the vacuum cleaner is opened to change the filter bags. This is done either manually by moving a locking tab or automatically by a spring.
Es sind auch Staubsauger auf dem Markt, bei denen während des bestimmungsgemäßen Gebrauchs die Filtertüte oben und der Eintritt in die Filtertüte unten angebracht ist. Bei diesen Staubsaugern muß die Filtertüte nicht nur beim Wechseln der Filtertüte verschlossen werden, sondern auch bei jedem Ausschalten des Saugers. Dies verhindert, daß bei ausgeschalte- tem Gerät Staub aus der Tüte wieder durch das Saugrohr auf den Boden fällt. Da in den Filtertüten auch feiner Staub vorhanden ist, ist eine relativ hohe Mindestverschlußkraft notwendig, damit kein Staub herausfällt. Dieser hohe Anfangswert der Federkraft kann beim Einschalten des Staubsaugers relativ leicht überwunden werden, da bei geschlossener Verschlußklappe eine große Druckdifferenz an der Klappe zu einer großen Öffnungskraft führt.There are also vacuum cleaners on the market with the filter bag on the top and the inlet in the filter bag on the bottom during normal use. With these vacuum cleaners, the filter bag must not only be closed when changing the filter bag, but also each time the vacuum cleaner is switched off. This prevents dust from falling out of the bag and falling through the suction pipe to the floor when the device is switched off. Since there is also fine dust in the filter bags, a relatively high minimum sealing force is necessary so that no dust falls out. This high initial value of the spring force can be overcome relatively easily when the vacuum cleaner is switched on, since a large pressure difference on the flap leads to a large opening force when the flap is closed.
Die Kraft muß dann aber wieder abfallen und sollte auch bei großen Öffnungswinkeln bis 90° nicht so stark ansteigen, damit der Unterdruck die Verschlußklappe sicher geöffnet halten kann. Es sind auch Hilfseinrichtungen zur Unterstützung derThe force must then drop again and should not increase so much even at large opening angles of up to 90 ° so that the negative pressure can keep the flap securely open. There are also support organizations to support the
BESTATIGUNGSKOPIE Klappenöffnung im Einsatz, die z. B. als Membran über Hebel die Klappe öffnen.BESTATIGUNGSKOPIE Flap opening in use, the z. B. open the flap as a membrane with a lever.
Oft werden bombierte Blattfedern verwendet, die bei einem ge- wissen Durchbiegen eine Degression besitzen. Die Federn schnappen durch. (Dieser Effekt wird beim Knackfrosch verwendet) . Bei weiterer Öffnung der Klappe steigt aber auch bei diesen Federn die Federkraft kontinuierlich weiter an. Außerdem erhöht jedes weitere Öffnen die Biegebelastung der Feder. Beim derzeitigen Stand der Technik kommt es dann bei großen Öffnungswinkeln zu großen Federkräften und außerdem zu sehr großen Belastungen der Blattfeder. Diese großen Belastungen führen häufig zu einer vorzeitigen Ermüdung und Beschädigung der Blattfeder.Curved leaf springs are often used, which have a degression when they are deflected to a certain extent. The feathers snap through. (This effect is used in the crack frog). When the flap is opened further, the spring force also increases continuously with these springs. In addition, each further opening increases the bending load on the spring. In the current state of the art, there are large spring forces at large opening angles and, in addition, very large loads on the leaf spring. These large loads often lead to premature fatigue and damage to the leaf spring.
Aufgabe der Erfindung ist es, eine Federanordnung zu schaffen, die ein weites Öffnen ohne großen Kraftanstieg ermöglicht, so daß die Feder dabei nicht stark belastet wird.The object of the invention is to provide a spring arrangement which allows a wide opening without a large increase in force, so that the spring is not heavily loaded.
Gelöst wird die Aufgabe durch die im Patentanspruch 1 angegebenen Maßnahmen.The problem is solved by the measures specified in claim 1.
Es ist vorzugsweise als Federelement ein elastisches Gummioder Silikonformteil (LSR = Liquid Silicon Rubber) vorgese- hen, welches auf Zug belastet wird, z. B. ein O-Ring. DieAn elastic rubber or silicone molded part (LSR = Liquid Silicon Rubber) is preferably provided as the spring element, which is loaded under tension, e.g. B. an O-ring. The
Kontur des Federelementes sollte verhältnismäßig flach sein, damit es leicht um das Scharnier der Verschlußklappe gebogen werden kann. Durch geeignete Wahl der Befestigungsstellen der Feder mit Bezug auf den Drehpunkt der Klappe kann eine sehr flache und auch eine degressive Kennlinie erreicht werden, wobei trotzdem am Anfang durch den wirksamen Hebelarm eine hohe Verschlußkraft erzeugt werden kann. Wenn der Drehpunkt der Verschlußklappe geeignet gewählt wird und außerdem eine Vertiefung im Scharnier vorhanden ist, ist auch eine Kennlinie möglich, die in den negativen Bereich geht. Das bedeutet, daß die Schließkraft kleiner als 0 wird und somit die Ver- schlußklappe offen stehen bleibt. Dazu muß die neutraleThe contour of the spring element should be relatively flat so that it can be easily bent around the hinge of the closure flap. Through a suitable choice of the fastening points of the spring with respect to the pivot point of the flap, a very flat and also a degressive characteristic curve can be achieved, although a high locking force can still be generated at the beginning by the effective lever arm. If the fulcrum If the flap is selected appropriately and there is also a recess in the hinge, a characteristic curve is also possible that goes into the negative range. This means that the closing force is less than 0 and the closing flap remains open. To do this, the neutral
(mittlere) Faser des Federelementes im Bereich des Scharniers auf die andere Seite von dessen Drehachse durchschnappen.Snap the (middle) fiber of the spring element in the area of the hinge to the other side of its axis of rotation.
In weiterer bevorzugter Ausführung der Erfindung ist in der Verschlußklappe eine Vertiefung angebracht, in die das Federelement im geöffneten Zustand vollständig eintaucht, so daß keine Kante oder Erhebung, die die Strömung behindern könnte, über die Verschlußklappe vorsteht. Außerdem kann an dem Federelement eine Dichtung angebracht sein, die zwischen der Verschlußklappe und der Filtertüte wirkt. In allen Fällen ist es zweckmäßig, für das Federelement einen Werkstoff zu wählen, der ein Anhaften von Schmutz erschwert oder verhindert. Insbesondere im zuletzt genannten Fall ist es vorteilhaft, wenn das Federelement die Verschlußklappe vollständig überdeckt.In a further preferred embodiment of the invention, a recess is made in the closure flap, into which the spring element is completely immersed in the open state, so that no edge or elevation which could hinder the flow protrude beyond the closure flap. In addition, a seal can be attached to the spring element, which acts between the closure flap and the filter bag. In all cases, it is advisable to choose a material for the spring element that makes it difficult or impossible for dirt to adhere. In the latter case in particular, it is advantageous if the spring element completely covers the closure flap.
Die Erfindung wird nachstehend anhand der Zeichnung näher erläutert .The invention is explained below with reference to the drawing.
Fig. 1 zeigt ein erfindungsgemäßes Federelement 10, eingebaut in eine Filtertüte 12. Das flache Federelement 10 ist mit seinem einen Ende an der Filtertüte 12 und mit seinem anderen Ende an einer Verschlußkappe 14 befestigt. Gezeigt ist ein Öffnungswinkel der Verschlußkappe 14 von ca. 45°. Fig. 2 zeigt das in der Filtertüte 12 eingebaute Federelement 10 in dem Zustand, bei dem die Verschlußklappe 14 geschlossen ist .1 shows a spring element 10 according to the invention, installed in a filter bag 12. The flat spring element 10 is fastened with its one end to the filter bag 12 and with its other end to a closure cap 14. An opening angle of the closure cap 14 of approximately 45 ° is shown. FIG. 2 shows the spring element 10 installed in the filter bag 12 in the state in which the closure flap 14 is closed.
Im Vergleich zu einer erfindungsgemäßen Ausführung nach Fig.l und 2 zeigt Fig. 8 den Stand der Technik, bei dem eine Blattfeder 16 verwendet wird. Die Blattfeder 16 hat eine Bombierung (Wölbung im Querschnitt) , damit die Federkraft nach einem gewissen Öffnungswinkel wieder absinkt. Gezeigt ist hier ein Öffnungswinkel der Verschlußklappe 14 von ca.45°. Die Blattfeder 16 ist als Biegefeder wirksam. Vorteilhaft ist, daß die Strömung bei dieser Ausführung durch die Blattfeder 16 nicht behindert wird, da die Luft auf der anderen Seite der Verschlußklappe 14 vorbeiströmt. Nachteilig ist aber die starke Belastung der Blattfeder 16 bei weitem Öffnen der Verschlußklappe 14.In comparison to an embodiment according to the invention according to FIGS. 1 and 2, FIG. 8 shows the prior art in which a leaf spring 16 is used. The leaf spring 16 has a crown (curvature in cross section) so that the spring force drops again after a certain opening angle. An opening angle of the closure flap 14 of approximately 45 ° is shown here. The leaf spring 16 is effective as a spiral spring. It is advantageous that the flow is not hindered by the leaf spring 16 in this embodiment, since the air flows past on the other side of the closure flap 14. The disadvantage, however, is the heavy load on the leaf spring 16 when the closure flap 14 is opened wide.
Fig. 3 zeigt in schematischer Darstellung das erfindungsgemäße Federelement 10, eingebaut in die Filtertüte 12, wobei die Verschlußklappe 14 die geschlossene Stellung einnimmt. Man erkennt, daß durch eine gegenüber der inneren Oberfläche der Filtertüte 12 und der geschlossenen Klappe 14 sowie deren Drehachse erhöhte Anordnung wenigstens einer der Befestigungsstellen der Zugfeder 10 die Federkraft mit einem Hebel- arm mit Bezug auf die Scharnierachse als Drehmoment wirkt, das zu einem sicheren Schließen der Klappe 14 führt.Fig. 3 shows a schematic representation of the spring element 10 according to the invention, installed in the filter bag 12, wherein the closure flap 14 assumes the closed position. It can be seen that an arrangement of at least one of the fastening points of the tension spring 10, which is higher than the inner surface of the filter bag 12 and the closed flap 14 and its axis of rotation, and the spring force acts as a torque with a lever arm with respect to the hinge axis, which results in a secure Closing the flap 14 leads.
Fig. 4 zeigt das Federelement nach Fig. 3 bei einem geringen Öffnungswinkel der Verschlußklappe 14. Bei diesem geringen Öffnungswinkel liegt das Federelement 10 noch nicht auf dem Scharnier auf, sondern erstreckt sich im Bereich des Scharniers, unabhängig von einer eventuellen Anlage an den Befe- stigungsstellen und außerhalb des Bereichs des Scharniers, frei über dieses hinweg.FIG. 4 shows the spring element according to FIG. 3 with a small opening angle of the closure flap 14. At this small opening angle, the spring element 10 does not yet rest on the hinge, but extends in the area of the hinge, irrespective of a possible attachment to the fastener. fixing points and outside the area of the hinge, freely over it.
Fig. 5 zeigt das Federelement 10 nach Fig. 3 und 4 bei einem Öffnungswinkel der Verschlußklappe 14 von ca. 70°. Man erkennt, daß sich bei diesem großen Öffnungswinkel das Federelement 10 um das Scharnier der Verschlußklappe 14 biegt. Ein weiteres Öffnen der Verschlußklappe 14 führt nur noch zu einer sehr geringen Erhöhung des Drehmoments und der Federbela- stung.FIG. 5 shows the spring element 10 according to FIGS. 3 and 4 with an opening angle of the closure flap 14 of approximately 70 °. It can be seen that with this large opening angle the spring element 10 bends around the hinge of the closure flap 14. A further opening of the closure flap 14 only leads to a very slight increase in the torque and the spring load.
Fig. 6 zeigt eine gegenüber Fig. 5 abgewandelte Version bei einem Öffnungswinkel der Verschlußklappe 14 von ebenfalls ca. 70°. Bei dieser Version ist eine Vertiefung im Scharnier und in der Verschlußklappe 14 vorhanden, in die das Federelement 10 eintauchen kann. Je nach Größe dieser Vertiefung kommt es ab einem bestimmten Öffnungswinkel zu einem Drehmoment in Öffnungsrichtung, so daß die Verschlußklappe 14 offen bleibt. Die neutrale Faser des Federelementes 10 liegt unter der Drehachse des Scharniers der Verschlußklappe 14.FIG. 6 shows a version modified compared to FIG. 5 with an opening angle of the closure flap 14 of likewise approximately 70 °. In this version, there is a recess in the hinge and in the closure flap 14, into which the spring element 10 can dip. Depending on the size of this recess, there is a torque in the opening direction from a certain opening angle, so that the closure flap 14 remains open. The neutral fiber of the spring element 10 lies below the axis of rotation of the hinge of the closure flap 14.
Fig. 7 zeigt mögliche Kennlinien des erfindungsgemäßen Federelementes 10. Mit A ist eine Kurve bezeichnet, die auf ein niedriges Niveau abfällt. Eine andere Kurve B fällt bis auf 0 ab und steigt dann wieder etwas an. Der Punkt, wo die Kurven auf 0 bzw. auf das Minimum abfallen, kann einfach durch die Geometrie der Federelementbefestigung und die Wahl der Feder festgelegt werden. 7 shows possible characteristic curves of the spring element 10 according to the invention. A denotes a curve which drops to a low level. Another curve B drops to 0 and then rises again slightly. The point where the curves drop to 0 or to the minimum can be determined simply by the geometry of the spring element attachment and the choice of spring.

Claims

Patentansprüche claims
1. Federanordnung für eine Verschlußklappe einer Staubsau- gerfiltertüte, dadurch gekennzeichnet, daß das Federelement (10) eine vorbelastete Zugfeder ist, die auf derjenigen Seite der Verschlußklappe (14) angebracht ist, auf welcher sie sich über deren Scharnier erstreckt und beim Öffnen der Verschlußklappe (14) auf Zug belastet wird, und daß die Befestigungsstellen des Federelementes (10) derart an der Verschlußklappe (14) und an der Filtertüte (12) angeordnet sind, daß es sich bis zu einem bestimmten Öffnungswinkel der Verschlußklappe (14) frei über das Scharnier erstreckt und bei einem größeren Öffnungswinkel in Anlage an einer auf oder neben der Scharnierachse angeordneten Kante oder Fläche abgebogen ist.1. Spring arrangement for a closure flap of a vacuum cleaner filter bag, characterized in that the spring element (10) is a preloaded tension spring which is attached to that side of the closure flap (14) on which it extends over its hinge and when the closure flap is opened (14) is loaded on train, and that the fastening points of the spring element (10) on the closure flap (14) and on the filter bag (12) are arranged such that it is free up to a certain opening angle of the closure flap (14) Hinge extends and is bent at a larger opening angle in contact with an edge or surface arranged on or next to the hinge axis.
2. Federanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Federelement (10) eine so geringe Biegesteifig- keit besitzt, daß es mit im Verhältnis zum Schließmoment der Verschlußklappe (14) wesentlich kleineren Rückstellmoment an dem Scharnier der Verschlußklappe (14) biegbar ist .2. Spring arrangement according to claim 1, characterized in that the spring element (10) has such a low bending stiffness that it can be bent with respect to the closing torque of the closure flap (14) much smaller restoring torque on the hinge of the closure flap (14).
3. Federanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Federelement (10) aus einem Gummiwerkstoff, aus einem Silikonformteil (LSR) oder aus einem thermoplastischen Elastomer (TPE) besteht.3. Spring arrangement according to claim 1, characterized in that the spring element (10) consists of a rubber material, a molded silicone part (LSR) or a thermoplastic elastomer (TPE).
4. Federanordnung nach Anspruch 1, dadurch gekennzeichnet, daß in der Verschlußklappe (14) eine Vertiefung angebracht ist, in die das Federelement (10) im geöffnetem Zustand vollständig eintaucht, so daß keine Kante oder Erhebung über die Verschlußklappe (14) hervorsteht, die die Strömung behindert.4. Spring arrangement according to claim 1, characterized in that in the closure flap (14) has a recess in which the spring element (10) in the open Completely immersed condition so that no edge or elevation protrudes over the closure flap (14) that impedes the flow.
5. Federanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Federelement (10) aus einem Werkstoff besteht, der ein Anhaften von Schmutz verhindert, und daß das Federelement (10) die Verschlußklappe (14) vollständig überdeckt .5. Spring arrangement according to claim 1, characterized in that the spring element (10) consists of a material which prevents the adherence of dirt, and that the spring element (10) completely covers the closure flap (14).
6. Federanordnung nach Anspruch 1, dadurch gekennzeichnet, daß an dem Federelement (10) eine Dichtung angebracht ist, die zwischen der Verschlußklappe (14) und der Filtertüte (12) wirkt.6. Spring arrangement according to claim 1, characterized in that on the spring element (10) a seal is attached, which acts between the closure flap (14) and the filter bag (12).
7. Federanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Federelement (10) als O-Ring ausgeführt ist.7. Spring arrangement according to claim 1, characterized in that the spring element (10) is designed as an O-ring.
8. Federanordnung nach Anspruch 1, dadurch gekennzeichnet, daß das Federelement (10) eine degressive Kennlinie des auf die Verschlußklappe (14) wirkenden Schließmoments bewirkt, das bei einem bestimmten Öffnungswinkel bis auf ein Drehmoment von 0 Nm absinkt.8. Spring arrangement according to claim 1, characterized in that the spring element (10) causes a degressive characteristic of the closing torque acting on the closure flap (14), which drops at a certain opening angle to a torque of 0 Nm.
9. Federanordnung nach Anspruch 8, dadurch gekennzeichnet, daß bei einen bestimmten Öffnungswinkel das in Schließrichtung auf die Verschlußklappe (14) wirkende Drehmoment unter 0 Nm absinkt und dadurch die Verschlußklappe (14) weiter bis zu einem Anschlag öffnet, der durch Anliegen des Federelementes (10) auf der Verschlußklappe (14) oder durch einen externen Anschlag gebildet ist. 9. Spring arrangement according to claim 8, characterized in that at a certain opening angle, the torque acting in the closing direction on the closure flap (14) drops below 0 Nm and thereby the closure flap (14) opens further until a stop which is caused by the spring element ( 10) is formed on the closure flap (14) or by an external stop.
EP03743383A 2002-03-06 2003-03-06 Spring arrangement for the closing flap of a filter bag Expired - Lifetime EP1480545B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10209718A DE10209718A1 (en) 2002-03-06 2002-03-06 Spring element for a flap of a filter bag
DE10209718 2002-03-06
PCT/EP2003/002290 WO2003073903A1 (en) 2002-03-06 2003-03-06 Spring arrangement for the closing flap of a filter bag

Publications (2)

Publication Number Publication Date
EP1480545A1 true EP1480545A1 (en) 2004-12-01
EP1480545B1 EP1480545B1 (en) 2008-04-16

Family

ID=27771004

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03743383A Expired - Lifetime EP1480545B1 (en) 2002-03-06 2003-03-06 Spring arrangement for the closing flap of a filter bag

Country Status (6)

Country Link
EP (1) EP1480545B1 (en)
AT (1) ATE392173T1 (en)
AU (1) AU2003210424A1 (en)
DE (2) DE10209718A1 (en)
ES (1) ES2303903T3 (en)
WO (1) WO2003073903A1 (en)

Cited By (11)

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EP3219236A1 (en) 2016-03-17 2017-09-20 Eurofilters Holding N.V. Holding plate with improved closure
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US10470625B2 (en) 2016-04-15 2019-11-12 Tti (Macao Commercial Offshore) Limited Vacuum cleaner and filter for a vacuum cleaner
USD911642S1 (en) 2017-12-05 2021-02-23 Techtronic Floor Care Technology Limited Housing for a filter
US11504662B2 (en) 2016-03-17 2022-11-22 Eurofilters N.V. Vacuum cleaner filter bag made from recycled plastic
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US10905299B2 (en) 2016-03-17 2021-02-02 Eurofilters Holding N.V. Retaining plate with improved sealing
EP3219237A1 (en) 2016-03-17 2017-09-20 Eurofilters Holding N.V. Holding plate with improved closure element
EP3219236A1 (en) 2016-03-17 2017-09-20 Eurofilters Holding N.V. Holding plate with improved closure
WO2017158074A1 (en) 2016-03-17 2017-09-21 Eurofilters Holding N.V. Device for a vacuum cleaner filter bag with a holding device and a closure device
WO2017158085A1 (en) 2016-03-17 2017-09-21 Eurofilters Holding N.V. Holding board with an improved closure element
WO2017158098A1 (en) 2016-03-17 2017-09-21 Eurofilters Holding N.V. Retainer board with improved closure
US11896922B2 (en) 2016-03-17 2024-02-13 Eurofilters N.V. Vacuum cleaner filter bag with powdery and/or fibrous recycled material
US11602252B2 (en) 2016-03-17 2023-03-14 Eurofilters N.V. Vacuum cleaner filter bag made from recycled plastic
US11504662B2 (en) 2016-03-17 2022-11-22 Eurofilters N.V. Vacuum cleaner filter bag made from recycled plastic
US10939788B2 (en) 2016-03-17 2021-03-09 Eurofilters Holding N.V. Retaining plate with improved sealing
EP3219235A1 (en) 2016-03-17 2017-09-20 Eurofilters Holding N.V. Device for a vacuum cleaner filter bag comprising a holding device and a closure device
US10806316B2 (en) 2016-03-17 2020-10-20 Eurofilters Holding N.V. Device for a vacuum cleaner filter bag with a holding device and a closure device
US10743731B2 (en) 2016-04-15 2020-08-18 Tti (Macao Commercial Offshore) Limited Vacuum filter
US10531772B2 (en) 2016-04-15 2020-01-14 Tti (Macao Commercial Offshore) Limited Handheld vacuum cleaner
US11363922B2 (en) 2016-04-15 2022-06-21 Techtronic Floor Care Technology Limited Vacuum cleaner and filter for a vacuum cleaner
US10470625B2 (en) 2016-04-15 2019-11-12 Tti (Macao Commercial Offshore) Limited Vacuum cleaner and filter for a vacuum cleaner
WO2018115269A1 (en) 2016-12-23 2018-06-28 Eurofilters Holding N.V. Retainer panel for a vacuum cleaner bag, with seal
EP3338610A1 (en) 2016-12-23 2018-06-27 Eurofilters Holding N.V. Holding plate for vacuum cleaner bag having seal
US11517163B2 (en) 2017-02-07 2022-12-06 Eurofilters Holding N.V. Retaining plate for a vacuum cleaner filter bag, having a closure device
USD911642S1 (en) 2017-12-05 2021-02-23 Techtronic Floor Care Technology Limited Housing for a filter
US12042117B2 (en) 2018-02-23 2024-07-23 Eurofilters Holding N.V. Retainer plate with a seal element
US11607637B2 (en) 2018-08-31 2023-03-21 Milwaukee Electric Tool Corporation Power tool including an air filter and debris collector

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AU2003210424A1 (en) 2003-09-16
DE10209718A1 (en) 2003-09-25
ATE392173T1 (en) 2008-05-15
WO2003073903A1 (en) 2003-09-12
ES2303903T3 (en) 2008-09-01
EP1480545B1 (en) 2008-04-16
DE50309628D1 (en) 2008-05-29

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