EP2772172B1 - Holding plate and method for producing a holding plate - Google Patents

Holding plate and method for producing a holding plate Download PDF

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Publication number
EP2772172B1
EP2772172B1 EP14154784.4A EP14154784A EP2772172B1 EP 2772172 B1 EP2772172 B1 EP 2772172B1 EP 14154784 A EP14154784 A EP 14154784A EP 2772172 B1 EP2772172 B1 EP 2772172B1
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EP
European Patent Office
Prior art keywords
closure element
base plate
spring
retaining section
holding
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EP14154784.4A
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German (de)
French (fr)
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EP2772172A3 (en
EP2772172A2 (en
Inventor
Nathalie Hellmann
Christoph Häusser
Jörg Matthias Kleppsch
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Wolf PVG GmbH and Co KG
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Wolf PVG GmbH and Co KG
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Application filed by Wolf PVG GmbH and Co KG filed Critical Wolf PVG GmbH and Co KG
Publication of EP2772172A2 publication Critical patent/EP2772172A2/en
Publication of EP2772172A3 publication Critical patent/EP2772172A3/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
    • A47L9/1454—Self-sealing closures, e.g. valves

Definitions

  • the present invention relates to a holding plate for a vacuum cleaner bag according to the preamble of claim 1 and a method for producing a holding plate for a vacuum cleaner bag according to the preamble of claim 9.
  • the DE 10 2007 053 151 discloses a retaining plate for a vacuum cleaner yield, in which an inlet opening arranged on the retaining plate can be closed by means of a pivotable flap.
  • the flap can be pivoted from an inclined position and locked on the retaining plate. Although this allows the flap to be mechanically fixed to the retaining plate, the tightness is however limited.
  • the flap can not be opened to the inside of a vacuum cleaner bag, since the flap must be manually grasped for actuation.
  • the EP 2 025 278 discloses a holding plate for a vacuum cleaner bag, in which a pivotable closure flap is provided on the holding plate.
  • the closure flap is biased by a spring element into a closed position and can open to the inside of a dust bag.
  • fixation of the spring on the retaining plate and the mounting of the closure element are relatively expensive.
  • the DE9302002U1 discloses a filter device for a vacuum cleaner, comprising a filter bag and a fixed holding plate provided with an inlet opening.
  • the holding plate according to the invention comprises a base plate with an inflow opening, which can be closed by at least one pivotable closure element, which is biased by a spring into a closed position, wherein the pivotable closure element is formed integrally with the base plate and arranged via a film hinge with a on the base plate Holding section is connected.
  • the holding plate can be effectively produced by making base plate and closure element integrally, for example by plastic injection molding, and moreover, the closure element can also open to the inside of a vacuum cleaner bag, as it is biased by the spring into a closed position.
  • the tightness of the holding plate in the region of the inflow opening can be improved.
  • the holding section is held pivotably on the base plate via a further film hinge, so that by pivoting the holding section relative to the base plate, the closure element can be brought into a position covering the inflow opening.
  • the holding portion may be clamped or detent fixed to the base plate, so that a simple assembly of a plastic blank to the finished plate is possible.
  • the spring may be formed as a leaf spring or helical spring, wherein a bending axis of the spring is aligned at an angle, preferably at right angles, to a rotational axis of the pivotable closure element.
  • the bending axis is the axis about which a bendable leg of the respective spring is pivoted, wherein the bending axis does not have to be a fixed axis of rotation, but depending on the bending load of the spring can also be moved.
  • this can be plugged or plugged into a receptacle or a holding means on the base plate or the closure element.
  • the spring can also be mounted on a plastic blank or the holding plate in an automated process if required.
  • annular collar projecting from the base plate is provided around the closure element.
  • the collar can thereby prevent a filter cake from accumulating in the region of the closure element and impairing the closure function.
  • the collar can have a recess in the region of the holding section, wherein the holding section in the mounted position forms a wall section, which extends the collar, so that the holding plate in the mounted position around the closure element has a closed annular collar, which is formed in sections by a wall portion on the holding portion.
  • At least one holding means may be formed on the base plate, on which the holding section can be fixed during folding. As a result, it is possible to dispense with further fastening means during assembly of the retaining plate.
  • a plastic blank having a base plate, in which an inflow opening is formed, and a closure element formed integrally with the base plate are first produced. Subsequently, the closure element is folded over the opening provided in the base plate inflow, wherein before, during or after folding a spring is mounted to bias the closure element in a closed position.
  • the holding plate can be provided with a few production steps and components.
  • the closure element is connected to a holding portion connected to the base plate via a film hinge, and the holding portion is folded together with the closure element.
  • a corresponding receptacle for inserting the holding portion may be formed in the base plate, so that it is locked or clamped to the base plate.
  • the spring is biased when folding the holding portion and the closure element.
  • the spring can be mounted in a relaxed position on the holding plate or the plastic blank.
  • the plastic blank is preferably formed as a substantially flat plate-shaped part and the closure element and / or the holding portion are folded over by about 180 '°.
  • the closure element can be aligned at an angle to the holding section, so that the closure element is pivoted at a smaller angle than the holding section during assembly. This difference can be used to tension a spring provided on the plastic blank when folding over the holding section and the closure element.
  • the spring is in one Receiving the plastic blank inserted before the holding section and / or the closure element is folded.
  • a holding plate 1 comprises a base plate 2 on which an integral plate-shaped closure element 3 is formed.
  • an inflow opening 4 is provided, in which a nozzle of a vacuum cleaner can be inserted.
  • a sealing ring 5 is provided made of an elastic material, which ensures a reliable seal.
  • the sealing ring 5 is surrounded by an annular holding portion 6, which is limited to the outside by an annular collar 7.
  • the collar 7 protrudes substantially perpendicularly from the base plate 2 and has a height of between 2 mm and 30 mm, in particular 5 mm to 20 mm, and ensures that the closure element upon growth of a filter cake is not obstructed within a vacuum cleaner bag, so that the shutter function can be performed reliably.
  • base plate 2 On the base plate 2 further recesses 8 or other means are provided which allow a mounting of the base plate 2 to corresponding fixing means of a vacuum cleaner.
  • the plate-shaped closure element 3 is designed as a flap, which is connected via a film hinge 9 with a strip-shaped holding portion 10.
  • the holding portion 10 is connected via a second film hinge 11 with the base plate 2.
  • the film hinges 9 and 11 are formed by material weakenings, which allow pivoting about the film hinge.
  • a recess 12 is formed, which forms a receptacle for the strip-shaped portion 10 when it is folded over the film hinge 11.
  • a projection 13 is formed on the base plate 2, which can be inserted into a corresponding opening 15 on the holding portion 10. It is also possible to provide other latching means or fastening means in order to fix the holding section 10 in a folded-over position on the base plate 2.
  • the annular collar 7 is provided in the region of the recess 12 for the holding portion 10 with a recess 14, so that the holding portion 10 can be folded with the closure element 3 up to the inflow opening 4 out. As in FIG. 2 is shown, is located on the holding portion 10, a wall portion 16 which closes the fold 14 of the retaining portion 10, the recess 14 on the annular collar 7, so that it is formed circumferentially.
  • a spring 18 is further mounted, which is formed as a leaf spring and is formed of a V-shaped metal strip. At a kink 19 of the spring 18 adjacent retaining webs 17 are arranged to support the spring in a central region. Both legs of the spring 18 abut against a projection 20 which protrudes from the closure element 3.
  • FIG. 3A a formed as a plastic blank holding plate 1 'is shown, which has a base plate 2', on which a closure member 10, a closure element 3 is integrally formed.
  • the plastic blank is formed as a substantially plate-shaped planar component.
  • the base plate 2 ' instead of a web-shaped collar, the base plate 2 'has a double-walled, U-shaped or V-shaped collar 7', which protrudes from the plane of the inflow opening 4 in the base plate 2 '.
  • a modified projection 13' is provided which serves to fix the holding portion 10.
  • a spring 18 can be mounted in the form of a V-shaped leaf spring, as shown by the arrows.
  • FIG. 3B the spring 18 is mounted on the plastic blank, wherein the spring 18 abuts with the two end portions of projections 20 on the closure element 3, while a central region adjacent to the kink 19 is supported on wall portions 16.
  • the holding section 10 is now pivoted about the film hinge 11, as in FIG. 3C is shown.
  • the closure element 3 is pivoted together with the holding portion 10 until the in Figure 3D shown position is reached.
  • Figure 3D is an end facing away from the film hinge 9 of the closure element 3 in contact with the base plate 2 'or the sealing element 5 on the base plate 2' and can not be pivoted now.
  • the holding portion 10 is not yet aligned parallel to the base plate 2 ', but at an angle between 4 ° and 30 °, in particular 8 ° and 20 °, inclined. If the holding section 10 is then pivoted further towards the base plate 2 ', the closure element 3 rotates about the film hinge 9 counter to the previous pivoting direction and can thereby tension the spring 18.
  • FIG. 3E the holding plate 1 'is shown in the mounted position.
  • the closure element 3 is now aligned parallel to the base plate 2 'and the holding portion 10 is fixed to a projection 13' of the base plate 2 ', for example via latching means, a clamping fixing or gluing.
  • the spring 18 was biased so that the closure element 3 in the illustrated closed position with a certain contact pressure on the base plate 2 'or a sealing element 5 is applied.
  • the holding plate 1 or 1 ' is made as a one-piece component made of plastic.
  • the spring 18 can be inserted or plugged into the plastic blank and stretched when folding the holding portion 10.
  • another spring element for example a strip-shaped leaf spring or a helical spring, can also be placed on the plastic blank.
  • the spring 18 instead of being fixed to the holding section 10, the spring 18 can also be fixed to the closure element 3 and then abuts a contact surface on the holding section or the base plate 2, 2 'in order to bias the closure element 3 in a closing direction.
  • the inflow opening 4 is covered by a single closure element 3. It is of course also possible to close the inflow opening 4 via two or more closure elements 3, which can each be biased individually via a spring 18 into a closed position.

Description

Die vorliegende Erfindung betrifft eine Halteplatte für einen Staubsaugerbeutel nach dem Oberbegriff des Anspruches 1 und ein Verfahren zur Herstellung einer Halteplatte für einen Staubsaugerbeutel nach dem Oberbegriff des Anspruches 9.The present invention relates to a holding plate for a vacuum cleaner bag according to the preamble of claim 1 and a method for producing a holding plate for a vacuum cleaner bag according to the preamble of claim 9.

Die DE 10 2007 053 151 offenbart eine Halteplatte für einen Staubsaugerbeute, bei der eine an der Halteplatte angeordnete Einströmöffnung über eine verschwenkbare Klappe verschließbar ist. Die Klappe kann dabei aus einer Schrägstellung verschwenkt werden und an der Halteplatte verrastet werden. Zwar lässt sich dadurch die Klappe mechanisch an der Halteplatte fixieren, die Dichtigkeit ist allerdings begrenzt. Zudem lässt sich die Klappe nicht zur Innenseite eines Staubsaugerbeutels öffnen, da die Klappe zur Betätigung manuell gegriffen werden muss.The DE 10 2007 053 151 discloses a retaining plate for a vacuum cleaner yield, in which an inlet opening arranged on the retaining plate can be closed by means of a pivotable flap. The flap can be pivoted from an inclined position and locked on the retaining plate. Although this allows the flap to be mechanically fixed to the retaining plate, the tightness is however limited. In addition, the flap can not be opened to the inside of a vacuum cleaner bag, since the flap must be manually grasped for actuation.

Die EP 2 025 278 offenbart eine Halteplatte für einen Staubsaugerbeutel, bei dem an der Halteplatte eine verschwenkbare Verschlussklappe vorgesehen ist. Die Verschlussklappe ist dabei über ein Federelement in eine Schließposition vorgespannt und kann sich zur Innenseite eines Staubsauberbeutels hin öffnen. Dabei ist allerdings problematisch, dass die Fixierung der Feder an der Halteplatte und die Montage des Verschlusselementes vergleichsweise aufwändig sind. Zudem kann es Probleme beim Einstecken eines Stutzens eines Staubsaugers in die Einströmöffnung geben, wenn die Federkraft zu hoch ist oder beim Öffnen der Klappe ansteigt.The EP 2 025 278 discloses a holding plate for a vacuum cleaner bag, in which a pivotable closure flap is provided on the holding plate. The closure flap is biased by a spring element into a closed position and can open to the inside of a dust bag. However, it is problematic that the fixation of the spring on the retaining plate and the mounting of the closure element are relatively expensive. In addition, there may be problems with the insertion of a nozzle of a vacuum cleaner in the inlet opening when the spring force is too high or increases when you open the door.

Die DE9302002U1 offenbart eine Filtereinrichtung für einen Staubsauger, mit einem Filterbeutel und einer daran befestigten, mit einer Einströmöffnung versehenen, steifen Halteplatte.The DE9302002U1 discloses a filter device for a vacuum cleaner, comprising a filter bag and a fixed holding plate provided with an inlet opening.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Halteplatte und ein Verfahren zum Herstellen einer Halteplatte für einen Staubsaugerbeutel zu schaffen, die eine effektive Herstellung der Halteplatte mit einem verschwenkbaren Verschlusselement ermöglichen.It is therefore an object of the present invention to provide a holding plate and a method for producing a holding plate for a vacuum cleaner bag, which allow an effective production of the holding plate with a pivotable closure element.

Diese Aufgabe wird mit einer Halteplatte mit den Merkmalen des Anspruches 1 sowie einem Verfahren mit den Merkmalen des Anspruches 9 gelöst.This object is achieved with a retaining plate having the features of claim 1 and a method having the features of claim 9.

Die erfindungsgemäße Halteplatte umfasst eine Grundplatte mit einer Einströmöffnung, die über mindestens ein verschwenkbares Verschlusselement verschließbar ist, das über eine Feder in eine geschlossene Position vorgespannt ist, wobei das verschwenkbare Verschlusselement integral mit der Grundplatte ausgebildet ist und über ein Filmscharnier mit einem an der Grundplatte angeordneten Halteabschnitt verbunden ist. Dadurch lässt sich die Halteplatte effektiv herstellen, indem Grundplatte und Verschlusselement integral, beispielsweise im Kunststoffspritzgussverfahren, hergestellt werden, und zudem kann das Verschlusselement auch zur Innenseite eines Staubsaugerbeutels öffnen, da es durch die Feder in eine geschlossene Position vorgespannt ist. Damit kann auch die Dichtigkeit der Halteplatte im Bereich der Einströmöffnung verbessert werden.The holding plate according to the invention comprises a base plate with an inflow opening, which can be closed by at least one pivotable closure element, which is biased by a spring into a closed position, wherein the pivotable closure element is formed integrally with the base plate and arranged via a film hinge with a on the base plate Holding section is connected. As a result, the holding plate can be effectively produced by making base plate and closure element integrally, for example by plastic injection molding, and moreover, the closure element can also open to the inside of a vacuum cleaner bag, as it is biased by the spring into a closed position. Thus, the tightness of the holding plate in the region of the inflow opening can be improved.

Der Halteabschnitt ist dabei über ein weiteres Filmscharnier verschwenkbar an der Grundplatte gehalten, so dass durch ein Verschwenken des Halteabschnittes relativ zu der Grundplatte das Verschlusselement in eine die Einströmöffnung überdeckende Position gebracht werden kann. Der Halteabschnitt kann dabei klemmend oder rastend an der Grundplatte festgelegt sein, so dass eine einfache Montage von einem Kunststoffrohling zu der fertigen Halteplatte möglich ist.The holding section is held pivotably on the base plate via a further film hinge, so that by pivoting the holding section relative to the base plate, the closure element can be brought into a position covering the inflow opening. The holding portion may be clamped or detent fixed to the base plate, so that a simple assembly of a plastic blank to the finished plate is possible.

Für eine optimierte Federkennlinie kann die Feder als Blattfeder oder Schraubenfeder ausgebildet sein, wobei eine Biegeachse der Feder winklig, vorzugsweise rechtwinklig, zu einer Drehachse des verschwenkbaren Verschlusselementes ausgerichtet ist. Die Biegeachse ist dabei die Achse, um die ein biegbarer Schenkel der jeweiligen Feder verschwenkt wird, wobei die Biegeachse keine feststehende Drehachse sein muss, sondern abhängig von der Biegebelastung der Feder auch verschoben werden kann. Für eine einfache Montage der Feder kann diese an einer Aufnahme oder einem Haltemittel an der Grundplatte oder dem Verschlusselement eingesteckt oder aufgesteckt werden. Dadurch kann die Feder bei Bedarf auch im automatisierten Verfahren an einem Kunststoffrohling oder der Halteplatte montiert werden.For an optimized spring characteristic, the spring may be formed as a leaf spring or helical spring, wherein a bending axis of the spring is aligned at an angle, preferably at right angles, to a rotational axis of the pivotable closure element. The bending axis is the axis about which a bendable leg of the respective spring is pivoted, wherein the bending axis does not have to be a fixed axis of rotation, but depending on the bending load of the spring can also be moved. For a simple assembly of the spring this can be plugged or plugged into a receptacle or a holding means on the base plate or the closure element. As a result, the spring can also be mounted on a plastic blank or the holding plate in an automated process if required.

Gemäß einer weiteren Ausgestaltung ist um das Verschlusselement ein von der Grundplatte hervorstehender ringförmiger Kragen vorgesehen. Der Kragen kann dabei verhindern, dass sich im Bereich des Verschlusselementes ein Filterkuchen ansammelt und die Verschlussfunktion beeinträchtigt. Der Kragen kann dabei im Bereich des Halteabschnittes eine Aussparung aufweisen, wobei der Halteabschnitt in der montierten Position einen Wandabschnitt ausbildet, der den Kragen verlängert, so dass die Halteplatte in der montierten Position um das Verschlusselement einen geschlossenen ringförmigen Kragen aufweist, der abschnittsweise durch einen Wandabschnitt an dem Halteabschnitt gebildet ist.According to a further embodiment, an annular collar projecting from the base plate is provided around the closure element. The collar can thereby prevent a filter cake from accumulating in the region of the closure element and impairing the closure function. The collar can have a recess in the region of the holding section, wherein the holding section in the mounted position forms a wall section, which extends the collar, so that the holding plate in the mounted position around the closure element has a closed annular collar, which is formed in sections by a wall portion on the holding portion.

Für eine einfache Montage kann an der Grundplatte mindestens ein Haltemittel ausgebildet sein, an dem der Halteabschnitt beim Umklappen festlegbar ist. Dadurch kann auf weitere Befestigungsmittel bei der Montage der Halteplatte verzichtet werden.For a simple assembly, at least one holding means may be formed on the base plate, on which the holding section can be fixed during folding. As a result, it is possible to dispense with further fastening means during assembly of the retaining plate.

Bei dem erfindungsgemäßen Verfahren zur Herstellung einer Halteplatte wird zunächst ein Kunststoffrohling mit einer Grundplatte, in der eine Einströmöffnung ausgebildet ist, und einem integral mit der Grundplatte ausgebildeten Verschlusselement hergestellt. Anschließend wird das Verschlusselement über die in der Grundplatte vorgesehene Einströmöffnung umgeklappt, wobei vor, während oder nach dem Umklappen eine Feder montiert wird, um das Verschlusselement in eine geschlossene Position vorzuspannen. Dadurch kann mit wenigen Herstellungsschritten und Bauteilen die Halteplatte bereitgestellt werden.In the method according to the invention for producing a holding plate, a plastic blank having a base plate, in which an inflow opening is formed, and a closure element formed integrally with the base plate are first produced. Subsequently, the closure element is folded over the opening provided in the base plate inflow, wherein before, during or after folding a spring is mounted to bias the closure element in a closed position. As a result, the holding plate can be provided with a few production steps and components.

Gemäß einer bevorzugten Ausgestaltung ist das Verschlusselement mit einem mit der Grundplatte verbundenen Halteabschnitt über ein Filmscharnier verbunden, und der Halteabschnitt wird zusammen mit dem Verschlusselement umgeklappt. Dabei kann in der Grundplatte eine entsprechende Aufnahme zum Einfügen des Halteabschnittes ausgebildet sein, damit dieser an der Grundplatte verrastet oder klemmend festgelegt wird.According to a preferred embodiment, the closure element is connected to a holding portion connected to the base plate via a film hinge, and the holding portion is folded together with the closure element. In this case, a corresponding receptacle for inserting the holding portion may be formed in the base plate, so that it is locked or clamped to the base plate.

Vorzugsweise wird beim Umklappen des Halteabschnittes und des Verschlusselementes die Feder vorgespannt. Dadurch kann die Feder in einer entspannten Position an der Halteplatte oder dem Kunststoffrohling montiert werden.Preferably, the spring is biased when folding the holding portion and the closure element. As a result, the spring can be mounted in a relaxed position on the holding plate or the plastic blank.

Der Kunststoffrohling ist vorzugsweise als im Wesentlichen flaches plattenförmiges Teil ausgebildet und das Verschlusselement und/oder der Halteabschnitt werden um etwa 180'° umgeklappt. Dabei kann bei dem Kunststoffrohling das Verschlusselement winklig zu dem Halteabschnitt ausgerichtet sein, so dass das Verschlusselement um einen geringeren Winkel als der Halteabschnitt bei der Montage verschwenkt wird. Diese Differenz kann genutzt werden, um eine an dem Kunststoffrohling vorgesehene Feder beim Umklappen des Halteabschnittes und des Verschlusselementes zu spannen. Die Feder wird in eine Aufnahme an dem Kunststoffrohling eingesteckt, bevor der Halteabschnitt und/oder das Verschlusselement umgeklappt wird.The plastic blank is preferably formed as a substantially flat plate-shaped part and the closure element and / or the holding portion are folded over by about 180 '°. In this case, in the plastic blank, the closure element can be aligned at an angle to the holding section, so that the closure element is pivoted at a smaller angle than the holding section during assembly. This difference can be used to tension a spring provided on the plastic blank when folding over the holding section and the closure element. The spring is in one Receiving the plastic blank inserted before the holding section and / or the closure element is folded.

Die Erfindung wird nachfolgend anhand von zwei Ausführungsbeispielen mit Bezug auf die beigefügten Zeichnungen näher erläutert. Es zeigen:

Figur 1
eine perspektivische Ansicht einer erfindungsgemäßen Halteplatte vor der Montage;
Figur 2
eine perspektivische Ansicht der Halteplatte der Figur 1 von der gegenüberliegenden Seite, und
Figuren 3A bis 3E
mehrere Ansichten des Herstellungsverfahrens einer erfindungsgemäßen Halteplatte aus einem Kunststoffrohling.
The invention will be explained in more detail below with reference to two embodiments with reference to the accompanying drawings. Show it:
FIG. 1
a perspective view of a holding plate according to the invention prior to assembly;
FIG. 2
a perspective view of the retaining plate of FIG. 1 from the opposite side, and
FIGS. 3A to 3E
several views of the manufacturing process of a holding plate according to the invention from a plastic blank.

Eine Halteplatte 1 umfasst eine Grundplatte 2, an der integral ein plattenförmiges Verschlusselement 3 ausgebildet ist. In der Grundplatte 2 ist dabei eine Einströmöffnung 4 vorgesehen, in die ein Stutzen eines Staubsaugers eingesteckt werden kann. Um die Einströmöffnung 4 ist ein Dichtring 5 aus einem elastischen Material vorgesehen, der für eine zuverlässige Abdichtung sorgt. Der Dichtring 5 ist dabei von einem ringförmigen Halteabschnitt 6 umgeben, der nach außen durch einen ringförmigen Kragen 7 begrenzt ist. Der Kragen 7 steht dabei im Wesentlichen senkrecht von der Grundplatte 2 hervor und besitzt eine Höhe von zwischen 2 mm und 30 mm, insbesondere 5 mm bis 20 mm, und sorgt dafür, dass das Verschlusselement bei Anwachsen eines Filterkuchens innerhalb eines Staubsaugerbeutels nicht behindert wird, damit die Verschlussfunktion zuverlässig ausgeführt werden kann.A holding plate 1 comprises a base plate 2 on which an integral plate-shaped closure element 3 is formed. In the base plate 2 while an inflow opening 4 is provided, in which a nozzle of a vacuum cleaner can be inserted. To the inflow opening 4, a sealing ring 5 is provided made of an elastic material, which ensures a reliable seal. The sealing ring 5 is surrounded by an annular holding portion 6, which is limited to the outside by an annular collar 7. The collar 7 protrudes substantially perpendicularly from the base plate 2 and has a height of between 2 mm and 30 mm, in particular 5 mm to 20 mm, and ensures that the closure element upon growth of a filter cake is not obstructed within a vacuum cleaner bag, so that the shutter function can be performed reliably.

An der Grundplatte 2 sind ferner Aussparungen 8 oder andere Mittel vorgesehen, die eine Halterung der Grundplatte 2 an entsprechenden Fixiermitteln eines Staubsaugers ermöglichen.On the base plate 2 further recesses 8 or other means are provided which allow a mounting of the base plate 2 to corresponding fixing means of a vacuum cleaner.

Das plattenförmige Verschlusselement 3 ist als Klappe ausgebildet, die über ein Filmscharnier 9 mit einem streifenförmigen Halteabschnitt 10 verbunden ist. Der Halteabschnitt 10 ist über ein zweites Filmscharnier 11 mit der Grundplatte 2 verbunden. Die Filmscharniere 9 und 11 sind dabei durch Materialschwächungen gebildet, die ein Verschwenken um das Filmscharnier ermöglichen. An der Grundplatte 2 ist eine Aussparung 12 ausgebildet, die eine Aufnahme für den streifenförmigen Abschnitt 10 bildet, wenn dieser um das Filmscharnier 11 umgeklappt wird. Um den Halteabschnitt 10 an der Grundplatte 2 zu fixieren, ist an der Grundplatte 2 ein Vorsprung 13 ausgebildet, der in eine entsprechende Öffnung 15 an dem Halteabschnitt 10 eingefügt werden kann. Es können auch andere Rastmittel oder Befestigungsmittel vorgesehen, um den Halteabschnitt 10 in einer umgeklappten Position an der Grundplatte 2 zu fixieren.The plate-shaped closure element 3 is designed as a flap, which is connected via a film hinge 9 with a strip-shaped holding portion 10. The holding portion 10 is connected via a second film hinge 11 with the base plate 2. The film hinges 9 and 11 are formed by material weakenings, which allow pivoting about the film hinge. On the base plate 2, a recess 12 is formed, which forms a receptacle for the strip-shaped portion 10 when it is folded over the film hinge 11. In order to fix the holding portion 10 to the base plate 2, a projection 13 is formed on the base plate 2, which can be inserted into a corresponding opening 15 on the holding portion 10. It is also possible to provide other latching means or fastening means in order to fix the holding section 10 in a folded-over position on the base plate 2.

Der ringförmige Kragen 7 ist im Bereich der Aussparung 12 für den Halteabschnitt 10 mit einer Aussparung 14 versehen, so dass der Halteabschnitt 10 mit dem Verschlusselement 3 bis zu der Einströmöffnung 4 hin umgeklappt werden kann. Wie in Figur 2 gezeigt ist, befindet sich an dem Halteabschnitt 10 ein Wandabschnitt 16, der nach dem Umklappen des Halteabschnittes 10 die Aussparung 14 an dem ringförmigen Kragen 7 schließt, so dass dieser umlaufend ausgebildet ist.The annular collar 7 is provided in the region of the recess 12 for the holding portion 10 with a recess 14, so that the holding portion 10 can be folded with the closure element 3 up to the inflow opening 4 out. As in FIG. 2 is shown, is located on the holding portion 10, a wall portion 16 which closes the fold 14 of the retaining portion 10, the recess 14 on the annular collar 7, so that it is formed circumferentially.

An dem Halteabschnitt 10 ist ferner eine Feder 18 montiert, die als Blattfeder ausgebildet ist und aus einem V-förmigen Metallstreifen gebildet ist. An einem Knick 19 der Feder 18 sind benachbart Haltestege 17 angeordnet, um die Feder in einem mittleren Bereich abzustützen. Beide Schenkel der Feder 18 liegen an einem Vorsprung 20 an, der von dem Verschlusselement 3 hervorsteht.On the holding portion 10, a spring 18 is further mounted, which is formed as a leaf spring and is formed of a V-shaped metal strip. At a kink 19 of the spring 18 adjacent retaining webs 17 are arranged to support the spring in a central region. Both legs of the spring 18 abut against a projection 20 which protrudes from the closure element 3.

Die Montage einer erfindungsgemäßen Halteplatte 1 wird mit Bezug auf die Figuren 3A bis 3E näher erläutert, wobei dort die Halteplatte 1 in einigen Details abgewandelt ist und gleiche Bauteile mit den gleichen Bezugszeichen versehen sind. Die Herstellung der Halteplatte 1 erfolgt allerdings mit den gleichen Schritten.The mounting of a holding plate 1 according to the invention will be explained in more detail with reference to Figures 3A to 3E, where there the support plate 1 is modified in some details and the same components are provided with the same reference numerals. The production of the holding plate 1, however, takes place with the same steps.

In Figur 3A ist eine als Kunststoffrohling ausgebildete Halteplatte 1' gezeigt, die eine Grundplatte 2' aufweist, an der über einen Halteabschnitt 10 ein Verschlusselement 3 integral ausgebildet ist. Der Kunststoffrohling ist als ein im Wesentlichen plattenförmiges ebenes Bauteil ausgebildet. Die Grundplatte 2' weist statt einem stegförmigen Kragen einen doppelwandigen, im Querschnitt U- oder V-förmigen Kragen 7' auf, der von der Ebene der Einströmöffnung 4 in der Grundplatte 2' hervorsteht. An der Grundplatte 2' ist ferner ein modifizierter Vorsprung 13' vorgesehen, der zur Fixierung des Halteabschnittes 10 dient. In dem in Figur 3A gezeigten Kunststoffrohling kann eine Feder 18 in Form einer V-förmigen Blattfeder montiert werden, wie dies durch die Pfeile gezeigt ist.In FIG. 3A a formed as a plastic blank holding plate 1 'is shown, which has a base plate 2', on which a closure member 10, a closure element 3 is integrally formed. The plastic blank is formed as a substantially plate-shaped planar component. Instead of a web-shaped collar, the base plate 2 'has a double-walled, U-shaped or V-shaped collar 7', which protrudes from the plane of the inflow opening 4 in the base plate 2 '. On the base plate 2 'is also a modified projection 13' is provided which serves to fix the holding portion 10. In the in FIG. 3A shown plastic blank, a spring 18 can be mounted in the form of a V-shaped leaf spring, as shown by the arrows.

In Figur 3B ist die Feder 18 an dem Kunststoffrohling montiert, wobei die Feder 18 mit den beiden Endabschnitten an Vorsprüngen 20 an dem Verschlusselement 3 anliegt, während ein mittlerer Bereich benachbart zu dem Knick 19 an Wandabschnitten 16 abgestützt ist. Für eine Montage der Halteplatte wird nun der Halteabschnitt 10 um das Filmscharnier 11 verschwenkt, wie dies in Figur 3C gezeigt ist. Das Verschlusselement 3 wird dabei zusammen mit dem Halteabschnitt 10 verschwenkt, bis die in Figur 3D gezeigte Position erreicht ist. In Figur 3D ist ein von dem Filmscharnier 9 abgewandtes Ende des Verschlusselementes 3 in Kontakt mit der Grundplatte 2' oder dem Dichtelement 5 an der Grundplatte 2' und kann nun nicht weiter verschwenkt werden. Der Halteabschnitt 10 ist hingegen noch nicht parallel zu der Grundplatte 2' ausgerichtet, sondern in einem Winkel zwischen 4° und 30°, insbesondere 8° und 20°, geneigt angeordnet. Wird nun der Halteabschnitt 10 weiter zu der Grundplatte 2' hin verschwenkt, dreht sich das Verschlusselement 3 um das Filmscharnier 9 entgegen der bisherigen Schwenkrichtung und kann dadurch die Feder 18 spannen.In FIG. 3B the spring 18 is mounted on the plastic blank, wherein the spring 18 abuts with the two end portions of projections 20 on the closure element 3, while a central region adjacent to the kink 19 is supported on wall portions 16. For mounting the retaining plate, the holding section 10 is now pivoted about the film hinge 11, as in FIG. 3C is shown. The closure element 3 is pivoted together with the holding portion 10 until the in Figure 3D shown position is reached. In Figure 3D is an end facing away from the film hinge 9 of the closure element 3 in contact with the base plate 2 'or the sealing element 5 on the base plate 2' and can not be pivoted now. The holding portion 10, however, is not yet aligned parallel to the base plate 2 ', but at an angle between 4 ° and 30 °, in particular 8 ° and 20 °, inclined. If the holding section 10 is then pivoted further towards the base plate 2 ', the closure element 3 rotates about the film hinge 9 counter to the previous pivoting direction and can thereby tension the spring 18.

In Figur 3E ist die Halteplatte 1' in der montierten Position gezeigt. Das Verschlusselement 3 ist nun parallel zur Grundplatte 2' ausgerichtet und der Halteabschnitt 10 ist an einem Vorsprung 13' der Grundplatte 2' fixiert, beispielsweise über Rastmittel, eine klemmende Festlegung oder ein Verkleben. Durch das Verschwenken des Verschlusselementes 3 relativ zu dem Halteabschnitt 10 wurde die Feder 18 vorgespannt, so dass das Verschlusselement 3 in der dargestellten Schließposition mit einem gewissen Anpressdruck an der Grundplatte 2' oder einem Dichtelement 5 anliegt.In FIG. 3E the holding plate 1 'is shown in the mounted position. The closure element 3 is now aligned parallel to the base plate 2 'and the holding portion 10 is fixed to a projection 13' of the base plate 2 ', for example via latching means, a clamping fixing or gluing. By pivoting the closure element 3 relative to the holding portion 10, the spring 18 was biased so that the closure element 3 in the illustrated closed position with a certain contact pressure on the base plate 2 'or a sealing element 5 is applied.

In dem dargestellten Ausführungsbeispiel ist die Halteplatte 1 bzw. 1' als einstückiges Bauteil aus Kunststoff hergestellt. Die Feder 18 kann dabei an dem Kunststoffrohling eingesteckt oder aufgesteckt werden und beim Umklappen des Halteabschnittes 10 gespannt werden. Statt der gezeigten V-förmigen Blattfeder kann natürlich auch ein anderes Federelement, beispielsweise eine streifenförmige Blattfeder oder eine Schraubenfeder, auf den Kunststoffrohling gesteckt werden. Zudem kann die Feder 18 statt an dem Halteabschnitt 10 auch an dem Verschlusselement 3 fixiert werden und liegt dann an einer Kontaktfläche an dem Halteabschnitt oder der Grundplatte 2, 2' an, um das Verschlusselement 3 in eine Schließrichtung vorzuspannen.In the illustrated embodiment, the holding plate 1 or 1 'is made as a one-piece component made of plastic. The spring 18 can be inserted or plugged into the plastic blank and stretched when folding the holding portion 10. Of course, instead of the V-shaped leaf spring shown, another spring element, for example a strip-shaped leaf spring or a helical spring, can also be placed on the plastic blank. In addition, instead of being fixed to the holding section 10, the spring 18 can also be fixed to the closure element 3 and then abuts a contact surface on the holding section or the base plate 2, 2 'in order to bias the closure element 3 in a closing direction.

In dem gezeigten Ausführungsbeispiel ist die Einströmöffnung 4 durch ein einziges Verschlusselement 3 überdeckt. Es ist natürlich auch möglich, die Einströmöffnung 4 über zwei oder mehr Verschlusselemente 3 zu verschließen, die jeweils einzeln über eine Feder 18 in eine Schließposition vorgespannt werden können.In the exemplary embodiment shown, the inflow opening 4 is covered by a single closure element 3. It is of course also possible to close the inflow opening 4 via two or more closure elements 3, which can each be biased individually via a spring 18 into a closed position.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1, 1'1, 1 '
Halteplatteretaining plate
2, 2'2, 2 '
Grundplattebaseplate
33
Verschlusselementclosure element
44
Einströmöffnunginflow
55
Dichtringseal
66
Abschnittsection
7, 7'7, 7 '
Kragencollar
88th
Aussparungrecess
99
Filmscharnierfilm hinge
1010
Halteabschnittholding section
1111
Filmscharnierfilm hinge
1212
Aussparungrecess
13, 13'13, 13 '
Vorsprunghead Start
1414
Aussparungrecess
1515
Öffnungopening
1616
Wandabschnittwall section
1717
Haltestegholding web
1818
Federfeather
1919
Knickkink
2020
Vorsprunghead Start

Claims (10)

  1. Holding plate (1, 1') for a vacuum cleaner bag, with a base plate (2, 2') at which an inflow opening (4) is provided, the opening being closable by way of at least one pivotable closure element (3) which is biased by way of a spring (18) into a closed position, wherein the pivotable closure element (3) is formed integrally with the base plate (2, 2') and is connected by way of a film hinge (9) with a retaining section (10) arranged at the base plate (2), characterised in that the retaining section (10) is pivotably held at the base plate (2, 2') by way of a further film hinge (11).
  2. Holding plate according to claim 1, characterised in that the retaining section (10) is fixed to the base plate (2, 2') by clipping or detenting.
  3. Holding plate according to claim 1 or 2, characterised in that the spring (18) is constructed as a leaf spring or helical spring, wherein a bending axis of the spring is oriented at an angle, preferably a right angle, to an axis of rotation of the closure element.
  4. Holding plate according to claim 3, characterised in that the spring (18) is plugged into or onto a receptacle or holding means at the base plate (2, 2') or the closure element (3).
  5. Holding plate according to any one of the preceding claims, characterised in that an annular collar (7, 7') projecting from the base plate (2, 2') is provided around the closure element (3).
  6. Holding plate according to claim 5, characterised in that the annular collar has a cut-out in which the retaining section is fitted, wherein a wall section prolonging the annular collar is formed at the retaining section.
  7. Holding plate according to any one of the preceding claims, characterised in that at least one retention means (13, 13') at which the retaining section (10) is fixable when folded over is formed at the base plate (2, 2').
  8. Method of producing a holding plate (1, 1') for a vacuum cleaner bag, comprising the following steps:
    - producing a plastics material blank with a base plate (2, 2'), in which an inflow opening (4) is formed, and a closure element (3) formed integrally with the base plate (2, 2');
    - folding over the closure element (3) over the inflow opening (4) provided in the base plate (2, 2'), wherein prior to or during the folding over a spring (18) is mounted so as to bias the closure element (3) into a closed position, and
    - the spring (18) is biased during folding over of a retaining section (10) and/or the closure element (3),
    characterised in that the spring (18) is inserted into a receptacle at the plastics material blank before the retaining section and/or the closure element is or are folded over.
  9. Method according to claim 8, characterised in that the closure element (3) is connected by way of a film hinge (9) with a retaining section (10) connected with the base plate (2, 2') and the retaining section (10) is folded over together with the closure element (3).
  10. Method according to claim 8 or 9, characterised in that the plastics material blank is formed as a substantially flat plate-shaped member and the closure element (3) and/or the retaining section (10) is or are folded over through approximately 180°.
EP14154784.4A 2013-02-28 2014-02-12 Holding plate and method for producing a holding plate Active EP2772172B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013101992.7A DE102013101992A1 (en) 2013-02-28 2013-02-28 Holding plate and method for producing a holding plate

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EP2772172A2 EP2772172A2 (en) 2014-09-03
EP2772172A3 EP2772172A3 (en) 2018-03-28
EP2772172B1 true EP2772172B1 (en) 2019-04-17

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015103517A1 (en) * 2015-03-10 2016-09-15 Branofilter Gmbh Dust filter bag for use in a vacuum cleaner
DE102015104624A1 (en) * 2015-03-26 2016-09-29 Miele & Cie. Kg Holding plate for a dust bag with an inflow opening and a closure element
PL3219236T3 (en) * 2016-03-17 2022-01-31 Eurofilters Holding N.V. Holding plate with improved closure
US11547257B2 (en) 2020-02-04 2023-01-10 Dustless Depot, Llc Vacuum bag with inlet gasket and closure seal
DE102020128162A1 (en) 2020-10-27 2022-04-28 Alfred Kärcher SE & Co. KG suction device and filter bag

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EP2772172A3 (en) 2018-03-28
EP2772172A2 (en) 2014-09-03

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