EP2452603B1 - Folded vacuum cleaner filter bag - Google Patents

Folded vacuum cleaner filter bag Download PDF

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Publication number
EP2452603B1
EP2452603B1 EP10190755.8A EP10190755A EP2452603B1 EP 2452603 B1 EP2452603 B1 EP 2452603B1 EP 10190755 A EP10190755 A EP 10190755A EP 2452603 B1 EP2452603 B1 EP 2452603B1
Authority
EP
European Patent Office
Prior art keywords
side wall
vacuum cleaner
filter bag
cleaner filter
bag
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.)
Active
Application number
EP10190755.8A
Other languages
German (de)
French (fr)
Other versions
EP2452603A1 (en
Inventor
Ralf Sauer
Jan Schultink
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.)
Eurofilters Holding NV
Original Assignee
Eurofilters Holding NV
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 Eurofilters Holding NV filed Critical Eurofilters Holding NV
Priority to PL10190755T priority Critical patent/PL2452603T3/en
Priority to EP10190755.8A priority patent/EP2452603B1/en
Priority to DK10190755.8T priority patent/DK2452603T3/en
Priority to ES10190755.8T priority patent/ES2552640T3/en
Priority to PCT/EP2011/005624 priority patent/WO2012062458A1/en
Publication of EP2452603A1 publication Critical patent/EP2452603A1/en
Application granted granted Critical
Publication of EP2452603B1 publication Critical patent/EP2452603B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a vacuum cleaner filter bag with a bag wall comprising a first side wall and a second side wall, wherein on the first side wall, a holding plate is arranged.
  • Vacuum cleaner filter bags are today mainly made of nonwovens. Due to their excellent dust retention capabilities, vacuum cleaner filter bags made of nonwovens have virtually supplanted paper filter bags.
  • the production of filter bags made of nonwovens is fundamentally different from the production of paper bags. Common are rectangular flat bags, which are formed from an upper and a lower side wall, which are circumferentially welded together at the edge.
  • Such filter bags are for example from the DE 201 01 466 , of the EP 0 161 790 , of the EP 0 639 061 , of the EP 1 059 056 or the EP 1 661 500 known.
  • a vacuum cleaner bag according to the preamble of claim 1 is made, for example WO-A-2004 112 560 known.
  • the typical sales unit of such vacuum cleaner filter bags is a folding box with three to six filter bags.
  • the vacuum cleaner filter bags are folded several times for packaging.
  • flat bags are usually folded in such a way that all folds are formed away in the direction from the outside of the bag wall on which the holding plate is arranged.
  • the filter bag in the space can often develop insufficient.
  • the filter bag may under certain circumstances unfold its capacity insufficient.
  • the media passage speed can increase and the separation efficiency of the filter bag decreases.
  • not so much space can be available for the storage of the dust particles.
  • the service life of the filter bag may decrease, since the pressure drop of the bag increases rapidly and thus the volume flow which is conveyed through the vacuum cleaner drops relatively quickly. Inadequate deployment also reduces the usable volume available for receiving dust.
  • a partially unfolded bag can hold correspondingly less dust, the bag must be changed earlier.
  • the invention provides a vacuum cleaner filter bag having a bag wall comprising a first side wall and a second side wall, wherein a holding plate is disposed on the first side wall, characterized in that the bag wall has a fold in which the first side wall and the second side wall are folded together in a direction toward the top of the first side wall, and the bag wall has at least one further fold in which the first side wall and the second side wall are folded together in a direction away from the top of the first side wall.
  • the vacuum cleaner filter bag may be at least partially folded or collapsed.
  • the vacuum cleaner filter bag can in particular be folded such that it can be arranged in a corresponding packaging, in particular a folding box.
  • a part of the bag wall, in particular the folded-over part, may be laid on or over another part of the bag wall.
  • the folding can therefore be a refolding.
  • first side wall and the second side wall may be folded together in a direction toward the holding plate.
  • the folding can in particular be designed such that a part of the bag wall is folded over towards the top of the first side wall.
  • a side edge of the bag wall and a portion of the bag wall directly adjacent to the side edge may be folded toward the top of the first side wall.
  • the region adjacent to the side edge may in particular have a width of at least one fifth, in particular at least one quarter, of the length of the side edge.
  • the area adjacent to the side edge may in particular have a width of at most half, in particular a maximum of one third, the length of the side edge.
  • the area adjacent to the side edge may in particular have a width of at least 6 cm, in particular at least 7.5 cm.
  • the region adjacent to the side edge may, in particular, have a maximum width of 15 cm, in particular a maximum of 10 cm.
  • the width of the area can be measured perpendicular to the side edge.
  • the upper side is here in particular the outwardly facing side of the side wall to be meant, so the outside.
  • the side wall side facing the inside of the vacuum cleaner filter bag may be referred to as the bottom or inside.
  • the retaining plate may in particular be arranged on the upper side of the first side wall.
  • Fold or fold points that have the lowest radius of curvature may be referred to as fold hinges. Through the connection of the fold hinges the so-called pleat wrinkle is obtained.
  • the fold back is also referred to as the fold axis.
  • the fold axis may correspond to a longitudinal axis of a fold.
  • the pleat back can correspond to a fold line.
  • the bag wall of the vacuum cleaner filter bag may comprise one or more layers of nonwoven material.
  • the vacuum cleaner filter bag may thus comprise a bag wall made of nonwoven material.
  • the bag wall may additionally comprise a net.
  • the bag wall can also consist of one or more layers of nonwoven material.
  • the vacuum cleaner filter bag may be formed as a flat bag.
  • the first side wall and the second side wall may be connected to one another, in particular welded.
  • the first side wall and the second side wall may in particular be peripherally welded at the edge.
  • the first and second side wall can be arranged opposite one another, in particular substantially parallel to one another, in particular one above the other.
  • the limited by the first side wall, the second side wall and the weld cavity can thereby form the interior of the vacuum cleaner filter bag.
  • the interior of the vacuum cleaner filter bag can be limited in particular only by the first side wall, the second side wall and the weld.
  • the bag wall may consist of the first and the second side wall welded thereto.
  • the first and / or second sidewall may each comprise one or more layers of nonwoven material.
  • the vacuum cleaner filter bag may in particular be a disposable vacuum cleaner filter bag.
  • nonwoven material is used according to the definition according to ISO Standard ISO9092: 1988 or CEN Standard EN29092.
  • nonwoven fabric or nonwoven fabric and nonwoven fabric in the field of production of nonwovens are to be distinguished from one another as follows and also to be understood in the sense of the present application.
  • To produce a nonwoven fabric fibers and / or filaments are used.
  • the loose or loose and substantially unconnected fibers and / or filaments are referred to as nonwoven or nonwoven web.
  • nonwoven fabric which has a strength to form z. B. to be wound into rolls. In other words, the nonwoven fabric is self-supporting by the solidification.
  • the non-woven binding step may comprise calendering the nonwoven web.
  • nonwoven fabric material a dry-laid or wet-laid nonwoven fabric or an extrusion nonwoven fabric, particularly a melt-spun microfiber spunbond fabric (meltblown nonwoven fabric) or filament spunbond fabric (spunbond), may be used.
  • a melt-spun microfiber spunbond fabric meltblown nonwoven fabric
  • filament spunbond fabric spunbond
  • the bag wall may comprise a laminate of a spunbonded nonwoven fabric, a meltblown nonwoven fabric, and a nonwoven filament nonwoven fabric (SMS).
  • SMS nonwoven filament nonwoven fabric
  • a layer of nonwoven fabric may also comprise several layers of nonwoven.
  • the nonwoven fabric may in particular comprise staple fibers and / or continuous fibers.
  • the holding plate can be connected to a mounting device of a vacuum cleaner, in particular engageable, be.
  • the holding plate can in particular in such a way with a mounting device of a vacuum cleaner connectable, in particular engageable, be that the position the retaining plate is substantially fixed or fixable relative to the mounting device.
  • the retaining plate connected to the mounting device of the vacuum cleaner, in particular relative to the mounting device or relative to the installation space of the vacuum cleaner be substantially fixed or fixed.
  • a holding plate can here generally be understood an element of the vacuum cleaner filter bag, which serves to hold the vacuum cleaner filter bag inside a vacuum cleaner housing.
  • the retaining plate can in principle have any shape.
  • the holding plate as a flat, sheet-like component, such as in the EP 1 849 392 shown to be trained.
  • the retaining plate may also have a more complex structure, such as in the DE 20 2008 006 904 shown have.
  • the retaining plate may comprise a plastic material.
  • the retaining plate may in particular be welded to the bag wall, for example by ultrasonic welding.
  • the holding plate can be arranged in the region of an inflow opening of the bag wall of the vacuum cleaner filter bag. During operation of the vacuum cleaner, the air to be cleaned can be directed into the interior of the vacuum cleaner filter bag through the inlet opening.
  • the holding plate may have a through hole in the region of the inflow opening.
  • the vacuum cleaner filter bag, in particular the holding plate may comprise a closure flap, through which the inflow opening of the bag wall and / or the through hole of the holding plate can be closed.
  • the inflow opening and the holding plate can be positioned as desired on the first side wall.
  • the inflow port and the holding plate may be centered on the vacuum cleaner filter bag or offset relative to the center.
  • the first side wall and the second side wall and / or the holding plate and the bag wall, in particular the holding plate and the first, may be connected by ultrasonic welding and / or thermal welding.
  • the filter bag may have one or more gussets.
  • the folding towards the top of the first side wall can in particular be designed in such a way that the holding plate is partially or completely overlapped by the folded-over bag wall.
  • the first sidewall and the second sidewall may be folded together in a direction toward the top of the second sidewall.
  • the vacuum cleaner filter bag may in particular be designed in such a way that the at least one further fold is folded exactly once in a direction away from the upper side of the first side wall.
  • the at least one further fold can be designed such that the bag wall is folded in the region of the at least one further fold only once in a direction away from the upper side of the first side wall.
  • the vacuum cleaner filter bag can thus be designed such that the bag wall has no refolding on the at least one further folding.
  • two further folds may be formed in one direction away from the upper side of the first side wall, in particular wherein the two further folds, in particular their pleat backs, run essentially parallel.
  • the two further folds may in particular comprise two opposite regions of the bag wall.
  • the two further folds can be arranged or run on two opposite sides of the holding plate.
  • the two further folds may in particular be designed such that they do not overlap each other.
  • two further folds may be formed in a direction away from the upper side of the first side wall and a fold in a direction toward the upper side of the first side wall.
  • the two further folds in a direction away from the top of the first side wall may be substantially parallel to each other and not overlapping each other.
  • the vacuum cleaner filter bag may be formed substantially rectangular, wherein the fold extends to the top of the first side wall substantially perpendicular to the longitudinal edges.
  • the vacuum cleaner filter bag may thus comprise four side edges, which face each other in pairs, wherein the respective opposite side edges have the same length.
  • the two side edge pairs may have a different length.
  • the longer-edge side edges may be referred to as longitudinal edges, while the shorter-length side edges may be referred to as transverse edges.
  • the two side edge pairs can have the same length.
  • the vacuum cleaner filter bag is thus formed substantially square.
  • two longitudinal and two transverse edges are defined.
  • the side edges of the side edge pair may be referred to with different distances to the holding plate as transverse edges, while the side edges of the side edge pair may be referred to with equal distances from the holding plate as longitudinal edges.
  • the longitudinal edges may, in particular, extend substantially parallel to the direction in which the holding plate can be connected to a holding device of a vacuum cleaner, in particular can be brought into engagement.
  • the distance of a side edge of the holding plate may correspond in particular to a normal distance.
  • the distance may be in particular the normal distance to the geometric center of the holding plate or the minimum normal distance to the holding plate.
  • the vacuum cleaner filter bag can thus have two longitudinal edges and two transverse edges, the fold extending toward the top of the first side wall, in particular its pleat back, substantially perpendicular to the longitudinal edges.
  • Such a fold can also be referred to as "longitudinal folding”.
  • the bag wall may be folded for longitudinal folding such that a transverse edge and the pleats of the longitudinal fold substantially parallel to it extend substantially perpendicular to the longitudinal edges of the vacuum cleaner filter bag.
  • one of the transverse edges may be folded in a direction towards the top of the first side wall. It may in particular be folded over the transverse edge, which has the larger normal distance to the holding plate in the unfolded vacuum cleaner filter bag.
  • a normal distance of a transverse edge to the support plate in particular the minimum normal distance can be used.
  • the at least one further fold in a direction away from the upper side of the first side wall, in particular its fold back, can run parallel to the longitudinal edges.
  • Such a further folding can also be referred to as "transverse folding".
  • the bag wall for a transverse folding can be folded in such a way that a longitudinal edge and the fold folds of the transverse fold substantially parallel thereto extend essentially perpendicular to the transverse edges of the vacuum cleaner filter bag.
  • Longitudinal folds and transverse folds may be substantially perpendicular to each other.
  • the vacuum cleaner filter bag may in particular have two transverse folds and one longitudinal fold, in particular wherein the longitudinal fold is directed towards the upper side of the first side wall and the two transverse folds are directed away from the upper side of the first side wall.
  • the transverse folds can be designed in particular in the form of a window folding or altarfolding.
  • two opposite side edges of the bag wall in particular the two longitudinal edges, can each be folded away from the upper side of the first side wall.
  • the transverse folds may in particular be designed such that they do not overlap one another.
  • a portion of the transverse fold may be folded together with the longitudinal folds in a direction away from the top of the first sidewall. In this case, first the longitudinal folding and then the transverse folds were formed. With others, the longitudinal folds and the transverse fold may be formed such that the portion of the pouch wall that has been folded over with the longitudinal folds is not visible when the vacuum cleaner filter pouch is viewed toward the support plate.
  • a portion of the longitudinal folds may be folded together with the transverse fold in a direction toward the top of the first sidewall.
  • first the transverse folds and then the longitudinal fold were formed.
  • the longitudinal folds and the transverse fold may be formed such that the part of the bag wall which has been folded over with the longitudinal folds is partially visible when the vacuum cleaner filter bag is viewed in the direction of the holding plate.
  • the folding back of the longitudinal fold can have a normal spacing, in particular a minimum normal spacing, of at least 1/5, in particular at least 1/4, of the length of the longitudinal edge of the bag wall from the holding plate.
  • the pleat back of the longitudinal fold can in particular have a normal spacing, in particular a minimum normal spacing, of at least 2 cm, in particular at least 5 cm, from the holding plate.
  • the invention also provides a container having at least one vacuum cleaner filter bag as described above.
  • the invention thus provides a system of a container and at least one vacuum cleaner filter bag as described above.
  • the container may in particular be a folding box, in particular of cardboard.
  • the invention also provides a method of folding a vacuum cleaner filter bag comprising the steps of:
  • a vacuum cleaner filter bag having a bag wall comprising a first side wall and a second side wall, wherein a holding plate is disposed on the first side wall, and
  • the vacuum cleaner filter bag and / or the obtained folding may have one or more of the above-mentioned features.
  • the method may thus be a method for producing a vacuum cleaner filter bag described above.
  • the folding toward the top of the first side wall may correspond in particular to the formation of a longitudinal fold as described above.
  • the longitudinal fold can be formed such that it has one or more of the above-mentioned features.
  • the folding away from the upper side of the first side wall can be carried out in particular for two, in particular opposite, regions of the bag wall.
  • the folding of the bag wall away from the upper side of the first side wall may in particular correspond to the formation of at least one transverse fold described above.
  • the transverse fold may be formed to have one or more of the above features.
  • a longitudinal fold and two transverse folds can be formed.
  • the formation of the transverse folds can be carried out after, but preferably before, the formation of the longitudinal fold.
  • the upper side of the first side wall is referred to in the following examples.
  • the reverse side is the top of the second side wall.
  • FIGS. 1a and 1b show a plan view of a front and a rear side of an exemplary vacuum cleaner filter bag.
  • the exemplary vacuum cleaner filter bag 1 is designed as a flat bag.
  • the vacuum cleaner filter bag 1 comprises a first side wall 2 and a second side wall 6 which are circumferentially welded together by a weld 3 at the edge.
  • the weld 3 can be formed by means of thermal welding and / or ultrasonic welding.
  • a holding plate 4 is arranged on the first side wall 2.
  • the holding plate 4 is arranged in the region of an inflow opening 5 of the bag wall of the vacuum cleaner filter bag 1.
  • the holding plate 4 also has a through hole in the region of the inflow opening 5.
  • the holding plate 4 may in particular be made of a plastic.
  • the holding plate 4 can be connected to the bag wall, in particular welded, be.
  • the inflow opening 5 and the holding plate 4 can be arbitrarily positioned on the first side wall 2.
  • the inflow opening 5 and the holding plate 4 can also be arranged centered on the vacuum cleaner filter bag 1.
  • Such flat bags are usually folded and arranged in a container, for example a folding box.
  • FIGS. 2a and 2b show perspective views of an exemplary folded vacuum cleaner filter bag 1.
  • the bag wall of the exemplary vacuum cleaner filter bag 1 of FIGS. 2a and 2b indicates a fold toward the top of the first side wall 2 and two further folds in which the first side wall 2 and the second side wall 6 are folded in a direction away from the top of the first side wall 2.
  • the exemplary vacuum cleaner filter bag 1 of the FIGS. 2a and 2b two transverse folds and a longitudinal fold, wherein the longitudinal fold is formed in a direction toward the top of the first side wall 2 out.
  • the two transverse folds are formed in this example from the top of the first side wall 2 away.
  • a portion of the longitudinal folds are folded together with the transverse fold in a direction toward the top of the first sidewall.
  • first the longitudinal folds were formed and then the transverse fold.
  • FIG. 2b shows the back of the in FIG. 2a illustrated exemplary vacuum cleaner filter bag 1.
  • the vacuum cleaner filter bag of FIGS. 2a and 2b a refolding of the longitudinal folding on the two transverse folds, in contrast to vacuum cleaner filter bags known in the art, is avoided.
  • the vacuum cleaner filter bag can develop better in the available space of a vacuum cleaner, in particular, the transverse folds can develop better.
  • the bent by the longitudinal fold portion of the bag wall is less likely to lie in front of a suction opening of the vacuum cleaner.
  • the fold back of the longitudinal fold runs in this example essentially perpendicular to the longitudinal edge of the vacuum cleaner bag 1 and parallel to the transverse edge.
  • the vacuum cleaner filter bag 1 is rectangular, thus has two longitudinal edges and two transverse edges, wherein the longitudinal edges are longer than the transverse edges.
  • a longitudinal direction or a transverse direction can be defined by the positioning of the holding plate on the first side wall.
  • the direction in which the holding plate has different distances to two opposite side edges can be defined as a longitudinal direction.
  • the transverse direction can then be defined substantially perpendicular thereto. Side edges that run longitudinally may then be referred to as “longitudinal edges” and side edges that extend in the transverse direction are referred to as "transverse edges”.
  • the longitudinal fold is designed such that the folded-over part of the bag wall does not cover or overlap the holding plate 4.
  • the longitudinal fold is formed such that the folded part of the bag wall, the support plate 4 partially or completely covers or overlaps.
  • the vacuum cleaner filter bag may be formed in different geometries and / or sizes.
  • longitudinal edges can be used or transverse edges are defined by the positioning of the holding plate on the first side wall.

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

Description

Die Erfindung betrifft einen Staubsaugerfilterbeutel mit einer Beutelwand umfassend eine erste Seitenwand und eine zweite Seitenwand, wobei auf der ersten Seitenwand eine Halteplatte angeordnet ist.The invention relates to a vacuum cleaner filter bag with a bag wall comprising a first side wall and a second side wall, wherein on the first side wall, a holding plate is arranged.

Staubsaugerfilterbeutel werden heute vorwiegend aus Vliesstoffen gefertigt. Aufgrund Ihrer hervorragenden Staubspeicherfähigkeiten haben Staubsaugerfilterbeutel aus Vliesstoffen Filterbeutel aus Papier praktisch verdrängt. Die Herstellung der Filterbeutel aus Vliesstoffen unterscheidet sich grundlegend von der Herstellung von Papierbeuteln. Gebräuchlich sind rechteckige Flachbeutel, die aus einer oberen und einer unteren Seitenwand gebildet werden, die am Rand umlaufend miteinander verschweißt sind. Derartige Filterbeutel sind beispielsweise aus der DE 201 01 466 , der EP 0 161 790 , der EP 0 639 061 , der EP 1 059 056 oder der EP 1 661 500 bekannt.Vacuum cleaner filter bags are today mainly made of nonwovens. Due to their excellent dust retention capabilities, vacuum cleaner filter bags made of nonwovens have virtually supplanted paper filter bags. The production of filter bags made of nonwovens is fundamentally different from the production of paper bags. Common are rectangular flat bags, which are formed from an upper and a lower side wall, which are circumferentially welded together at the edge. Such filter bags are for example from the DE 201 01 466 , of the EP 0 161 790 , of the EP 0 639 061 , of the EP 1 059 056 or the EP 1 661 500 known.

Ein Staubsaugerbeutel gemäß dem Oberbegriff des Anspruchs 1 ist z.B. aus WO-A-2004 112 560 bekannt.A vacuum cleaner bag according to the preamble of claim 1 is made, for example WO-A-2004 112 560 known.

Die typische Verkaufseinheit von solchen Staubsaugerfilterbeuteln ist eine Faltschachtel mit drei bis sechs Filterbeutel. Um Verpackungsmaterial einzusparen, werden die Staubsaugerfilterbeutel zum Verpacken mehrfach gefaltet. Insbesondere werden Flachbeutel üblicherweise derart gefaltet, dass alle Faltungen in Richtung von der Außenseite der Beutelwand, auf der die Halteplatte angeordnet ist, weg gebildet werden.The typical sales unit of such vacuum cleaner filter bags is a folding box with three to six filter bags. To save packaging material, the vacuum cleaner filter bags are folded several times for packaging. In particular, flat bags are usually folded in such a way that all folds are formed away in the direction from the outside of the bag wall on which the holding plate is arranged.

Da der Bauraum des Staubsaugers üblicherweise in wenigstens einer Raumrichtung eine geringere Ausdehnung aufweist als der Staubsaugerfilterbeutel, kann sich der Filterbeutel im Bauraum häufig nur unzureichend entfalten. In Folge kann der Filterbeutel unter Umständen sein Leistungsvermögen nur unzureichend entfalten. Zum einen kann es passieren, dass nicht alle Bereiche der Seitenwände gleichmäßig durchströmt werden. Dadurch kann sich die Mediendurchtrittsgeschwindigkeit erhöhen und die Abscheideleistung des Filterbeutels sinkt. Zum anderen kann nicht so viel Fläche für die Einlagerung der Staubpartikel bereitstehen. Dadurch kann die Standzeit des Filterbeutels sinken, da der Druckverlust des Beutels schnell ansteigt und somit der Volumenstrom der durch den Staubsauger gefördert wird relativ rasch absinkt. Bei unzureichender Entfaltung sinkt auch das nutzbare Volumen, welches zur Aufnahme von Staub zur Verfügung steht. Ein nur teilweise entfalteter Beutel kann entsprechend weniger Staub fassen, der Beutel muss früher gewechselt werden.Since the space of the vacuum cleaner usually in at least one spatial direction has a smaller extent than the vacuum cleaner filter bag, the filter bag in the space can often develop insufficient. As a result, the filter bag may under certain circumstances unfold its capacity insufficient. On the one hand it can happen that not all areas of the side walls are flowed through evenly. As a result, the media passage speed can increase and the separation efficiency of the filter bag decreases. On the other hand, not so much space can be available for the storage of the dust particles. As a result, the service life of the filter bag may decrease, since the pressure drop of the bag increases rapidly and thus the volume flow which is conveyed through the vacuum cleaner drops relatively quickly. Inadequate deployment also reduces the usable volume available for receiving dust. A partially unfolded bag can hold correspondingly less dust, the bag must be changed earlier.

Daher ist es Aufgabe der vorliegenden Erfindung, einen Staubsaugerfilterbeutel bereitzustellen, der eine verbesserte Standzeit ermöglicht.It is therefore an object of the present invention to provide a vacuum cleaner filter bag, which allows an improved service life.

Die Erfindung stellt einen Staubsaugerfilterbeutel mit einer Beutelwand umfassend eine erste Seitenwand und eine zweite Seitenwand, bereit, wobei auf der ersten Seitenwand eine Halteplatte angeordnet ist,
dadurch gekennzeichnet, dass
die Beutelwand eine Faltung aufweist, bei der die erste Seitenwand und die zweite Seitenwand gemeinsam in einer Richtung zu der Oberseite der ersten Seitenwand hin gefaltet sind, und
die Beutelwand wenigstens eine weitere Faltung aufweist, bei der die erste Seitenwand und die zweite Seitenwand gemeinsam in einer Richtung von der Oberseite der ersten Seitenwand weg gefaltet sind.The invention provides a vacuum cleaner filter bag having a bag wall comprising a first side wall and a second side wall, wherein a holding plate is disposed on the first side wall,
characterized in that
the bag wall has a fold in which the first side wall and the second side wall are folded together in a direction toward the top of the first side wall, and
the bag wall has at least one further fold in which the first side wall and the second side wall are folded together in a direction away from the top of the first side wall.

Es wurde von den Erfindern überraschenderweise festgestellt, dass dadurch, dass eine Faltung zur Oberseite der ersten Seitenwand, auf der die Halteplatte angeordnet ist, hin weist, die Entfaltung des Staubsaugerfilterbeutels im Bauraum des Staubsaugers verbessert werden kann. Dadurch kann eine vollständigere Durchströmung des Filtermaterials erreicht werden was zu einer verbesserten Staubspeicherfähigkeit führtIt has surprisingly been found by the inventors that the fact that a fold to the top of the first side wall on which the holding plate is arranged points towards the development of the vacuum cleaner filter bag can be improved in the space of the vacuum cleaner. As a result, a more complete flow through the filter material can be achieved, which leads to an improved dust storage capacity

Mit anderen Worten kann der Staubsaugerfilterbeutel wenigstens teilweise gefaltet oder zusammengelegt sein. Der Staubsaugerfilterbeutel kann insbesondere derart gefaltet sein, dass er in einer entsprechenden Verpackung, insbesondere einer Faltschachtel, anordenbar ist.In other words, the vacuum cleaner filter bag may be at least partially folded or collapsed. The vacuum cleaner filter bag can in particular be folded such that it can be arranged in a corresponding packaging, in particular a folding box.

Ein Teil der Beutelwand, insbesondere der umgefaltete Teil, kann auf oder über einen anderen Teil der Beutelwand gelegt sein. Bei der Faltung kann es sich also um eine Umfaltung handeln.A part of the bag wall, in particular the folded-over part, may be laid on or over another part of the bag wall. The folding can therefore be a refolding.

Die erste Seitenwand und die zweite Seitenwand können mit anderen Worten gemeinsam in einer Richtung zu der Halteplatte hin gefaltet sein.In other words, the first side wall and the second side wall may be folded together in a direction toward the holding plate.

Die Faltung kann insbesondere derart ausgebildet sein, dass ein Teil der Beutelwand zur Oberseite der ersten Seitenwand hin umgeklappt ist. Insbesondere können eine Seitenkante der Beutelwand und ein Bereich der Beutelwand, der direkt an die Seitenkante angrenzt, zur Oberseite der ersten Seitenwand hin gefaltet sein. Der an die Seitenkante angrenzende Bereich kann insbesondere eine Breite von wenigstens einem Fünftel, insbesondere wenigstens einem Viertel, der Länge der Seitenkante aufweisen. Der an die Seitenkante angrenzende Bereich kann insbesondere eine Breite von maximal der Hälfte, insbesondere maximal einem Drittel, der Länge der Seitenkante aufweisen.The folding can in particular be designed such that a part of the bag wall is folded over towards the top of the first side wall. In particular, a side edge of the bag wall and a portion of the bag wall directly adjacent to the side edge may be folded toward the top of the first side wall. The region adjacent to the side edge may in particular have a width of at least one fifth, in particular at least one quarter, of the length of the side edge. The area adjacent to the side edge may in particular have a width of at most half, in particular a maximum of one third, the length of the side edge.

Der an die Seitenkante angrenzende Bereich kann insbesondere eine Breite von wenigstens 6 cm, insbesondere wenigstens 7,5 cm, aufweisen. Der an die Seitenkante angrenzende Bereich kann insbesondere eine Breite von maximal 15 cm, insbesondere maximal 10 cm, aufweisen.The area adjacent to the side edge may in particular have a width of at least 6 cm, in particular at least 7.5 cm. The region adjacent to the side edge may, in particular, have a maximum width of 15 cm, in particular a maximum of 10 cm.

Die Breite des Bereichs kann dabei senkrecht zur Seitenkante gemessen werden.The width of the area can be measured perpendicular to the side edge.

Als Oberseite ist hier insbesondere die nach außen weisende Seite der Seitenwand gemeint sein, also deren Außenseite. Die Seite der Seitenwand die zum Inneren des Staubsaugerfilterbeutels hin weist kann dagegen als Unterseite oder Innenseite bezeichnet werden. Die Halteplatte kann insbesondere an der Oberseite der ersten Seitenwand angeordnet sein.The upper side is here in particular the outwardly facing side of the side wall to be meant, so the outside. On the other hand, the side wall side facing the inside of the vacuum cleaner filter bag may be referred to as the bottom or inside. The retaining plate may in particular be arranged on the upper side of the first side wall.

Punkte der Faltung oder Falte, die den geringsten Krümmungsradius aufweisen, können als Faltenscharniere bezeichnet werden. Durch die Verbindung der Faltenscharniere wird der sogenannte Faltenrücken erhalten. Der Faltenrücken wird auch als Faltenachse bezeichnet. Die Faltenachse kann einer Längsachse einer Falte entsprechen. Der Faltenrücken kann einer Falzlinie entsprechen.Fold or fold points that have the lowest radius of curvature may be referred to as fold hinges. Through the connection of the fold hinges the so-called pleat wrinkle is obtained. The fold back is also referred to as the fold axis. The fold axis may correspond to a longitudinal axis of a fold. The pleat back can correspond to a fold line.

Die Beutelwand des Staubsaugerfilterbeutels kann eine oder mehrere Lagen aus Vliesstoffmaterial umfassen. Der Staubsaugerfilterbeutel kann also eine Beutelwand aus Vliesstoffmaterial umfassen. Optional kann die Beutelwand zusätzlich ein Netz umfassen. Die Beutelwand kann auch aus einer oder mehreren Lagen aus Vliesstoffmaterial bestehen.The bag wall of the vacuum cleaner filter bag may comprise one or more layers of nonwoven material. The vacuum cleaner filter bag may thus comprise a bag wall made of nonwoven material. Optionally, the bag wall may additionally comprise a net. The bag wall can also consist of one or more layers of nonwoven material.

Der Staubsaugerfilterbeutel kann als Flachbeutel ausgebildet sein.The vacuum cleaner filter bag may be formed as a flat bag.

Die erste Seitenwand und die zweite Seitenwand können miteinander verbunden, insbesondere verschweißt sein. Die erste Seitenwand und die zweite Seitenwand können insbesondere umlaufend am Rand verschweißt sein. Die erste und zweite Seitenwand können gegenüberliegend, insbesondere im Wesentlichen parallel zueinander, insbesondere übereinander, angeordnet sein.The first side wall and the second side wall may be connected to one another, in particular welded. The first side wall and the second side wall may in particular be peripherally welded at the edge. The first and second side wall can be arranged opposite one another, in particular substantially parallel to one another, in particular one above the other.

Der durch die erste Seitenwand, die zweite Seitenwand und die Schweißnaht begrenzte Hohlraum kann dabei den Innenraum des Staubsaugerfilterbeutels bilden. Der Innenraum des Staubsaugerfilterbeutels kann insbesondere nur durch die die erste Seitenwand, die zweite Seitenwand und die Schweißnaht begrenzt werden. Mit anderen Worten kann die Beutelwand aus der ersten und der damit verschweißten zweiten Seitenwand bestehen.The limited by the first side wall, the second side wall and the weld cavity can thereby form the interior of the vacuum cleaner filter bag. The interior of the vacuum cleaner filter bag can be limited in particular only by the first side wall, the second side wall and the weld. In other words, the bag wall may consist of the first and the second side wall welded thereto.

Die erste und/oder zweite Seitenwand können jeweils eine oder mehrere Lagen aus Vliesstoffmaterial umfassen.The first and / or second sidewall may each comprise one or more layers of nonwoven material.

Der Staubsaugerfilterbeutel kann insbesondere ein Wegwerfstaubsaugerfilterbeutel sein.The vacuum cleaner filter bag may in particular be a disposable vacuum cleaner filter bag.

Der Begriff Vliesstoff (Nonwoven) wird gemäß der Definition nach ISO Standard ISO9092: 1988 bzw. CEN Standard EN29092 verwendet. Insbesondere sind die Begriffe Faservlies oder Vlies und Vliesstoff auf dem Gebiet der Herstellung von Vliesstoffen wie folgt gegeneinander abzugrenzen und auch im Sinne der vorliegenden Anmeldung so zu verstehen. Zur Herstellung eines Vliesstoffes werden Fasern und/oder Filamente verwendet. Die lockeren oder losen und im Wesentlichen noch unverbundenen Fasern und/oder Filamente werden als Vlies oder Faservlies (Web) bezeichnet. Durch einen sogenannten Vliesbindeschritt entsteht aus einem derartigen Faservlies schließlich ein Vliesstoff, der eine Festigkeit aufweist, um z. B. zu Rollen aufgewickelt zu werden. Mit anderen Worten wird der Vliesstoff durch die Verfestigung selbsttragend ausgebildet. (Details zur Verwendung der hierin beschriebenen Definitionen und/oder Verfahren lassen sich auch im Standardwerk "Vliesstoffe", W. Albrecht, H. Fuchs, B. Kittelmann, Wiley VCH, 2000 , entnehmen.) Der Vliesbindeschritt kann beispielsweise ein Kalandrieren des Vlieses umfassen.The term nonwoven material is used according to the definition according to ISO Standard ISO9092: 1988 or CEN Standard EN29092. In particular, the terms nonwoven fabric or nonwoven fabric and nonwoven fabric in the field of production of nonwovens are to be distinguished from one another as follows and also to be understood in the sense of the present application. To produce a nonwoven fabric fibers and / or filaments are used. The loose or loose and substantially unconnected fibers and / or filaments are referred to as nonwoven or nonwoven web. By means of a so-called non-woven binding step, a nonwoven fabric, which has a strength to form z. B. to be wound into rolls. In other words, the nonwoven fabric is self-supporting by the solidification. (Details on the use of the definitions and / or methods described herein can also Standard work "Nonwovens", W. Albrecht, H. Fuchs, B. Kittelmann, Wiley VCH, 2000 For example, the non-woven binding step may comprise calendering the nonwoven web.

Als Vliesstoffmaterial kann ein trocken- oder nassgelegter Vliesstoff oder ein Extrusionsvliesstoff, insbesondere ein schmelzgesponnener Mikrofaserspinnvliesstoff (Meltblownvliesstoff) oder Filamentspinnvliesstoff (Spunbond), verwendet werden. Die Abgrenzung zwischen nassgelegten Vliesstoffen bzw. "Nonwovens" und herkömmlichem nassgelegten Papier erfolgt gemäß der oben genannten Definition, wie sie auch von der International Association Serving the Nonwovens and Related Industries (EDANA) verwendet wird. Ein herkömmliches (Filter-) Papier ist also kein Vliesstoff.As the nonwoven fabric material, a dry-laid or wet-laid nonwoven fabric or an extrusion nonwoven fabric, particularly a melt-spun microfiber spunbond fabric (meltblown nonwoven fabric) or filament spunbond fabric (spunbond), may be used. The distinction between wet-laid non-wovens and conventional wet-laid paper is as defined above, as used by the International Association Serving the Nonwoven and Related Industries (EDANA). A conventional (filter) paper is therefore not a nonwoven.

Beispielsweise kann die Beutelwand ein Laminat aus einem Filamentspinnvliesstoff, einem Meltblownvliesstoff und einem Filamentvliesstoff (SMS) umfassen.For example, the bag wall may comprise a laminate of a spunbonded nonwoven fabric, a meltblown nonwoven fabric, and a nonwoven filament nonwoven fabric (SMS).

Fertigungstechnisch können auch mehrere Schichten Vlies vorgesehen werden, die zu genau einer Lage Vliesstoff verfestigt werden. Mit anderen Worten kann eine Lage Vliesstoff auch mehrere Schichten Vlies umfassen. Der Vliesstoff kann insbesondere Stapelfasern und/oder Endlosfasern umfassen.Manufacturing technology, several layers of fleece can be provided, which are solidified to exactly one layer of nonwoven fabric. In other words, a layer of nonwoven fabric may also comprise several layers of nonwoven. The nonwoven fabric may in particular comprise staple fibers and / or continuous fibers.

Die Halteplatte kann mit einer Halterungseinrichtung eines Staubsaugers verbindbar, insbesondere in Eingriff bringbar, sein. Die Halteplatte kann insbesondere derart mit einer Halterungseinrichtung eines Staubsaugers verbindbar, insbesondere in Eingriff bringbar, sein, dass die Position der Halteplatte relativ zu der Halterungseinrichtung im Wesentlichen festlegbar oder fixierbar ist. Mit anderen Worten kann die mit der Halterungseinrichtung des Staubsaugers verbundene Halteplatte, insbesondere relativ zu der Halterungseinrichtung oder relativ zum Bauraum des Staubsaugers, im Wesentlichen festgelegt oder fixiert sein.The holding plate can be connected to a mounting device of a vacuum cleaner, in particular engageable, be. The holding plate can in particular in such a way with a mounting device of a vacuum cleaner connectable, in particular engageable, be that the position the retaining plate is substantially fixed or fixable relative to the mounting device. In other words, the retaining plate connected to the mounting device of the vacuum cleaner, in particular relative to the mounting device or relative to the installation space of the vacuum cleaner, be substantially fixed or fixed.

Unter einer Halteplatte kann hier allgemein ein Element des Staubsaugerfilterbeutels verstanden werden, das der Halterung des Staubsaugerfilterbeutels im Inneren eines Staubsaugergehäuses dient. Die Halteplatte kann grundsätzlich eine beliebige Form aufweisen. Beispielsweise kann die Halteplatte als ebenes, flächiges Bauteil, wie beispielsweise in der EP 1 849 392 gezeigt, ausgebildet sein. Die Halteplatte kann jedoch auch eine komplexere Struktur, wie etwa in der DE 20 2008 006 904 gezeigt, aufweisen.Under a holding plate can here generally be understood an element of the vacuum cleaner filter bag, which serves to hold the vacuum cleaner filter bag inside a vacuum cleaner housing. The retaining plate can in principle have any shape. For example, the holding plate as a flat, sheet-like component, such as in the EP 1 849 392 shown to be trained. However, the retaining plate may also have a more complex structure, such as in the DE 20 2008 006 904 shown have.

Die Halteplatte kann ein Kunststoffmaterial umfassen. Die Halteplatte kann mit der Beutelwand insbesondere verschweißt sein, beispielsweise durch Ultraschallverschweißen.The retaining plate may comprise a plastic material. The retaining plate may in particular be welded to the bag wall, for example by ultrasonic welding.

Die Halteplatte kann im Bereich einer Einströmöffnung der Beutelwand des Staubsaugerfilterbeutels angeordnet sein. Im Betrieb des Staubsaugers kann durch die Einströmöffnung die zu reinigende Luft in das Innere des Staubsaugerfilterbeutels geleitet werden. Die Halteplatte kann im Bereich der Einströmöffnung ein Durchgangsloch aufweisen. Der Staubsaugerfilterbeutel, insbesondere die Halteplatte, kann eine Verschlussklappe umfassen, durch welche die Einströmöffnung der Beutelwand und/oder das Durchgangsloch der Halteplatte verschließbar sind.The holding plate can be arranged in the region of an inflow opening of the bag wall of the vacuum cleaner filter bag. During operation of the vacuum cleaner, the air to be cleaned can be directed into the interior of the vacuum cleaner filter bag through the inlet opening. The holding plate may have a through hole in the region of the inflow opening. The vacuum cleaner filter bag, in particular the holding plate, may comprise a closure flap, through which the inflow opening of the bag wall and / or the through hole of the holding plate can be closed.

Die Einströmöffnung und die Halteplatte können beliebig auf der ersten Seitenwand positioniert werden. Beispielsweise können die Einströmöffnung und die Halteplatte zentriert auf dem Staubsaugerfilterbeutel angeordnet werden oder bezüglich des Zentrums versetzt.The inflow opening and the holding plate can be positioned as desired on the first side wall. For example, the inflow port and the holding plate may be centered on the vacuum cleaner filter bag or offset relative to the center.

Die erste Seitenwand und die zweite Seitenwand und/oder die Halteplatte und die Beutelwand, insbesondere die Halteplatte und die erste, können durch Ultraschallschweißen und/oder thermisches Schweißen verbunden sein. Der Filterbeutel kann eine oder mehrere Seitenfalten aufweisen.The first side wall and the second side wall and / or the holding plate and the bag wall, in particular the holding plate and the first, may be connected by ultrasonic welding and / or thermal welding. The filter bag may have one or more gussets.

Bei der Faltung zur Oberseite der ersten Seitenwand hin kann insbesondere weniger als die Hälfte, insbesondere weniger als ein Drittel, der Beutelwand umgefaltet sein.In the folding towards the top of the first side wall, in particular, less than half, in particular less than a third, of the bag wall can be folded over.

Bei der Faltung zur Oberseite der ersten Seitenwand hin kann auch mehr als die Hälfte der Beutelwand umgefaltet sein. Die Faltung zur Oberseite der ersten Seitenwand hin kann insbesondere derart ausgebildet sein, dass die Halteplatte durch die umgefaltete Beutelwand teilweise oder vollständig überlappt wird.When folding to the top of the first side wall and more than half of the bag wall can be folded over. The folding towards the top of the first side wall can in particular be designed in such a way that the holding plate is partially or completely overlapped by the folded-over bag wall.

Bei der wenigstens einen weiteren Faltung können die erste Seitenwand und die zweite Seitenwand gemeinsam in einer Richtung zur Oberseite der zweiten Seitenwand hin gefaltet sein.In the at least one further convolution, the first sidewall and the second sidewall may be folded together in a direction toward the top of the second sidewall.

Der Staubsaugerfilterbeutel kann insbesondere derart ausgebildet sein, dass die wenigstens eine weitere Faltung genau einmal in einer Richtung von der Oberseite der ersten Seitenwand weg gefaltet ist. Mit anderen Worten, kann die wenigstens eine weitere Faltung derart ausgebildet sein, dass die Beutelwand im Bereich der wenigstens einen weiteren Faltung nur einmal in einer Richtung von der Oberseite der ersten Seitenwand weg gefaltet ist. Mit anderen Worten kann der Staubsaugerfilterbeutel also derart ausgebildet sein, dass die Beutelwand keine Rückfaltung auf die wenigstens eine weitere Faltung aufweist.The vacuum cleaner filter bag may in particular be designed in such a way that the at least one further fold is folded exactly once in a direction away from the upper side of the first side wall. In other words, the at least one further fold can be designed such that the bag wall is folded in the region of the at least one further fold only once in a direction away from the upper side of the first side wall. In other words, the vacuum cleaner filter bag can thus be designed such that the bag wall has no refolding on the at least one further folding.

Es können insbesondere zwei weitere Faltungen in einer Richtung von der Oberseite der ersten Seitenwand weg ausgebildet sein, insbesondere wobei die zwei weiteren Faltungen, insbesondere deren Faltenrücken, im Wesentlichen parallel verlaufen.In particular, two further folds may be formed in one direction away from the upper side of the first side wall, in particular wherein the two further folds, in particular their pleat backs, run essentially parallel.

Die zwei weiteren Falten können insbesondere zwei gegenüberliegende Bereiche der Beutelwand umfassen. Mit anderen Worten können die zwei weiteren Falten an zwei gegenüberliegenden Seiten der Halteplatte angeordnet sein oder verlaufen. Die zwei weiteren Falten können insbesondere derart ausgebildet sein, dass sie sich gegenseitig nicht überlappen.The two further folds may in particular comprise two opposite regions of the bag wall. In other words, the two further folds can be arranged or run on two opposite sides of the holding plate. The two further folds may in particular be designed such that they do not overlap each other.

Es können insbesondere zwei weitere Faltungen in einer Richtung von der Oberseite der ersten Seitenwand weg und eine Faltung in einer Richtung zur Oberseite der ersten Seitenwand hin, ausgebildet sein. Die zwei weiteren Faltungen in einer Richtung von der Oberseite der ersten Seitenwand weg können im Wesentlichen parallel zueinander verlaufen und sich gegenseitig nicht überlappen.In particular, two further folds may be formed in a direction away from the upper side of the first side wall and a fold in a direction toward the upper side of the first side wall. The two further folds in a direction away from the top of the first side wall may be substantially parallel to each other and not overlapping each other.

Der Staubsaugerfilterbeutel kann im Wesentlichen rechteckig ausgebildet sein, wobei die Faltung zur Oberseite der ersten Seitenwand hin im Wesentlichen senkrecht zu den Längskanten verläuft.The vacuum cleaner filter bag may be formed substantially rectangular, wherein the fold extends to the top of the first side wall substantially perpendicular to the longitudinal edges.

Der Staubsaugerfilterbeutel kann also vier Seitenkanten umfassen, die sich paarweise gegenüberliegen, wobei die jeweils gegenüberliegenden Seitenkanten dieselbe Länge aufweisen.The vacuum cleaner filter bag may thus comprise four side edges, which face each other in pairs, wherein the respective opposite side edges have the same length.

Die beiden Seitenkantenpaare können eine unterschiedliche Länge aufweisen. In diesem Fall können die Seitenkanten mit der größeren Länge als Längskanten bezeichnet werden, während die Seitenkanten mit der geringeren Länge als Querkanten bezeichnet werden können.The two side edge pairs may have a different length. In this case, the longer-edge side edges may be referred to as longitudinal edges, while the shorter-length side edges may be referred to as transverse edges.

Die beiden Seitenkantenpaare können dieselbe Länge aufweisen. In diesem Fall ist der Staubsaugerfilterbeutel also im Wesentlichen quadratisch ausgebildet. In diesem Fall können durch die Positionierung der Halteplatte auf der ersten Seitenwand des Staubsaugerfilterbeutels zwei Längs- und zwei Querkanten definiert werden.The two side edge pairs can have the same length. In this case, the vacuum cleaner filter bag is thus formed substantially square. In this case, through the positioning of the holding plate on the first side wall of the vacuum cleaner filter bag two longitudinal and two transverse edges are defined.

Insbesondere können die Seitenkanten des Seitenkantenpaares mit unterschiedlichen Abständen zur Halteplatte als Querkanten bezeichnet werden, während die Seitenkanten des Seitenkantenpaares mit gleichen Abständen zur Halteplatte als Längskanten bezeichnet werden können.In particular, the side edges of the side edge pair may be referred to with different distances to the holding plate as transverse edges, while the side edges of the side edge pair may be referred to with equal distances from the holding plate as longitudinal edges.

Die Längskanten können insbesondere im Wesentlichen parallel zu der Richtung verlaufen, in der die Halteplatte mit einer Halterungseinrichtung eines Staubsaugers verbindbar ist, insbesondere in Eingriff bringbar ist.The longitudinal edges may, in particular, extend substantially parallel to the direction in which the holding plate can be connected to a holding device of a vacuum cleaner, in particular can be brought into engagement.

Der Abstand einer Seitenkante von der Halteplatte kann insbesondere einem Normalabstand entsprechen. Der Abstand kann insbesondere der Normalabstand zum geometrischen Mittelpunkt der Halteplatte oder der minimale Normalabstand zu der Halteplatte sein.The distance of a side edge of the holding plate may correspond in particular to a normal distance. The distance may be in particular the normal distance to the geometric center of the holding plate or the minimum normal distance to the holding plate.

Mit anderen Worten kann der Staubsaugerfilterbeutel also zwei Längskanten und zwei Querkanten aufweisen, wobei die Faltung zur Oberseite der ersten Seitenwand hin, insbesondere deren Faltenrücken, im Wesentlichen senkrecht zu den Längskanten verläuft. Eine derartige Faltung kann auch als "Längsfaltung" bezeichnet werden. Mit anderen Worten kann die Beutelwand für eine Längsfaltung derart gefaltet sein, dass eine Querkante und der dazu im Wesentlichen parallele Faltenrücken der Längsfaltung, im Wesentlichen senkrecht zu den Längskanten des Staubsaugerfilterbeutels verlaufen.In other words, the vacuum cleaner filter bag can thus have two longitudinal edges and two transverse edges, the fold extending toward the top of the first side wall, in particular its pleat back, substantially perpendicular to the longitudinal edges. Such a fold can also be referred to as "longitudinal folding". In other words, the bag wall may be folded for longitudinal folding such that a transverse edge and the pleats of the longitudinal fold substantially parallel to it extend substantially perpendicular to the longitudinal edges of the vacuum cleaner filter bag.

Insbesondere kann eine der Querkanten in einer Richtung zur Oberseite der ersten Seitenwand hin gefaltet sein. Es kann insbesondere die Querkante umgefaltet sein, die bei dem nicht gefalteten Staubsaugerfilterbeutel den größeren Normalabstand zur Halteplatte aufweist. Als Normalabstand einer Querkante zur Halteplatte kann insbesondere der minimale Normalabstand verwendet werden.In particular, one of the transverse edges may be folded in a direction towards the top of the first side wall. It may in particular be folded over the transverse edge, which has the larger normal distance to the holding plate in the unfolded vacuum cleaner filter bag. As a normal distance of a transverse edge to the support plate, in particular the minimum normal distance can be used.

Die wenigstens eine weitere Faltung in einer Richtung von der Oberseite der ersten Seitenwand weg, insbesondere deren Faltenrücken, kann parallel zu den Längskanten verlaufen. Eine derartige weitere Faltung kann auch als "Querfaltung" bezeichnet werden. Mit anderen Worten kann die Beutelwand für eine Querfaltung derart gefaltet sein, dass eine Längskante und der dazu im Wesentlichen parallele Faltenrücken der Querfaltung, im Wesentlichen senkrecht zu den Querkanten des Staubsaugerfilterbeutels verlaufen.The at least one further fold in a direction away from the upper side of the first side wall, in particular its fold back, can run parallel to the longitudinal edges. Such a further folding can also be referred to as "transverse folding". In other words, the bag wall for a transverse folding can be folded in such a way that a longitudinal edge and the fold folds of the transverse fold substantially parallel thereto extend essentially perpendicular to the transverse edges of the vacuum cleaner filter bag.

Längsfaltungen und Querfaltungen können im Wesentlichen senkrecht zueinander verlaufen.Longitudinal folds and transverse folds may be substantially perpendicular to each other.

Der Staubsaugerfilterbeutel kann insbesondere zwei Querfaltungen und eine Längsfaltung aufweisen, insbesondere wobei die Längsfaltung in Richtung zur Oberseite der ersten Seitenwand hin gerichtet ist und die beiden Querfaltungen von der Oberseite der ersten Seitenwand weg gerichtet sind.The vacuum cleaner filter bag may in particular have two transverse folds and one longitudinal fold, in particular wherein the longitudinal fold is directed towards the upper side of the first side wall and the two transverse folds are directed away from the upper side of the first side wall.

Die Querfaltungen können insbesondere in Form einer Fensterfaltung oder Altarfaltung ausgebildet sein. Mit anderen Worten können zwei gegenüberliegende Seitenkanten der Beutelwand, insbesondere die beiden Längskanten, jeweils von der Oberseite der ersten Seitenwand weg gefaltet sein. Die Querfaltungen können insbesondere derart ausgebildet sein, dass sie sich nicht gegenseitig überlappen.The transverse folds can be designed in particular in the form of a window folding or altarfolding. In other words, two opposite side edges of the bag wall, in particular the two longitudinal edges, can each be folded away from the upper side of the first side wall. The transverse folds may in particular be designed such that they do not overlap one another.

Ein Teil der Querfaltung kann zusammen mit den Längsfaltungen in einer Richtung von der Oberseite der ersten Seitenwand weg gefaltet sein. In diesem Fall wurde zuerst die Längsfaltung und danach die Querfaltungen gebildet. Mit anderen können die Längsfaltungen und die Querfaltung derart ausgebildet sein, dass der Teil der Beutelwand, der mit den Längsfaltungen umgefaltet wurde nicht sichtbar ist, wenn der Staubsaugerfilterbeutel in Richtung auf die Halteplatte betrachtet wird.A portion of the transverse fold may be folded together with the longitudinal folds in a direction away from the top of the first sidewall. In this case, first the longitudinal folding and then the transverse folds were formed. With others, the longitudinal folds and the transverse fold may be formed such that the portion of the pouch wall that has been folded over with the longitudinal folds is not visible when the vacuum cleaner filter pouch is viewed toward the support plate.

Ein Teil der Längsfaltungen kann zusammen mit der Querfaltung in einer Richtung zur Oberseite der ersten Seitenwand hin gefaltet sein. In diesem Fall wurden zuerst die Querfaltungen und dann die Längsfaltung gebildet. Mit anderen Worten können die Längsfaltungen und die Querfaltung derart ausgebildet sein, dass der Teil der Beutelwand, der mit den Längsfaltungen umgefaltet wurde teilweise sichtbar ist, wenn der Staubsaugerfilterbeutel in Richtung auf die Halteplatte betrachtet wird.A portion of the longitudinal folds may be folded together with the transverse fold in a direction toward the top of the first sidewall. In this case, first the transverse folds and then the longitudinal fold were formed. In other words, the longitudinal folds and the transverse fold may be formed such that the part of the bag wall which has been folded over with the longitudinal folds is partially visible when the vacuum cleaner filter bag is viewed in the direction of the holding plate.

Der Faltenrücken der Längsfaltung kann von der Halteplatte einen Normalabstand, insbesondere einen minimalen Normalabstand, von wenigstens 1/5, insbesondere wenigstens 1/4, der Länge der Längskante der Beutelwand aufweisen.The folding back of the longitudinal fold can have a normal spacing, in particular a minimum normal spacing, of at least 1/5, in particular at least 1/4, of the length of the longitudinal edge of the bag wall from the holding plate.

Der Faltenrücken der Längsfaltung kann von der Halteplatte insbesondere einen Normalabstand, insbesondere einen minimalen Normalabstand, von wenigstens 2 cm, insbesondere wenigstens 5 cm, aufweisen.The pleat back of the longitudinal fold can in particular have a normal spacing, in particular a minimum normal spacing, of at least 2 cm, in particular at least 5 cm, from the holding plate.

Die Erfindung stellt außerdem einen Behälter mit wenigstens einem oben beschriebenen Staubsaugerfilterbeutel bereit. Mit anderen Worten stellt die Erfindung also ein System aus einem Behälter und wenigstens einem oben beschriebenen Staubsaugerfilterbeutel bereit.The invention also provides a container having at least one vacuum cleaner filter bag as described above. In other words, the invention thus provides a system of a container and at least one vacuum cleaner filter bag as described above.

Der Behälter kann insbesondere eine Faltschachtel, insbesondere aus Karton, sein.The container may in particular be a folding box, in particular of cardboard.

Die Erfindung stellt außerdem ein Verfahren zum Falten eines Staubsaugerfilterbeutels bereit, umfassend die Schritte:The invention also provides a method of folding a vacuum cleaner filter bag comprising the steps of:

Bereitstellen eines Staubsaugerfilterbeutels mit einer Beutelwand umfassend eine erste Seitenwand und eine zweite Seitenwand, wobei auf der ersten Seitenwand eine Halteplatte angeordnet ist, undProviding a vacuum cleaner filter bag having a bag wall comprising a first side wall and a second side wall, wherein a holding plate is disposed on the first side wall, and

Falten der Beutelwand, derart, dass die erste Seitenwand und die zweite Seitenwand gemeinsam in einer Richtung zur Oberseite der ersten Seitenwand hin gefaltet werden, undFolding the bag wall such that the first side wall and the second side wall are folded together in a direction toward the top of the first side wall, and

Falten der Beutelwand, derart, dass die erste Seitenwand und die zweite Seitenwand gemeinsam in einer Richtung von der Oberseite der ersten Seitenwand weg gefaltet werden.Folding the bag wall such that the first side wall and the second side wall are folded together in a direction away from the top of the first side wall.

Der Staubsaugerfilterbeutel und/oder die erhaltene Faltung können eines oder mehrere der oben genannten Merkmale aufweisen. Das Verfahren kann also ein Verfahren zum Herstellen eines oben beschriebenen Staubsaugerfilterbeutels sein.The vacuum cleaner filter bag and / or the obtained folding may have one or more of the above-mentioned features. The method may thus be a method for producing a vacuum cleaner filter bag described above.

Das Falten zur Oberseite der ersten Seitenwand hin kann insbesondere dem Ausbilden einer oben beschriebenen Längsfaltung entsprechen. Die Längsfaltung kann derart gebildet werden, dass sie eines oder mehrere der oben genannten Merkmale aufweist.The folding toward the top of the first side wall may correspond in particular to the formation of a longitudinal fold as described above. The longitudinal fold can be formed such that it has one or more of the above-mentioned features.

Das Falten von der Oberseite der ersten Seitenwand weg kann insbesondere für zwei, insbesondere gegenüberliegende, Bereiche der Beutelwand durchgeführt werden.The folding away from the upper side of the first side wall can be carried out in particular for two, in particular opposite, regions of the bag wall.

Das Falten der Beutelwand von der Oberseite der ersten Seitenwand weg kann insbesondere dem Ausbilden wenigstens einer oben beschriebenen Querfaltung entsprechen. Die Querfaltung kann derart gebildet werden, dass sie eines oder mehrere der oben genannten Merkmale aufweist.The folding of the bag wall away from the upper side of the first side wall may in particular correspond to the formation of at least one transverse fold described above. The transverse fold may be formed to have one or more of the above features.

Es können insbesondere eine Längsfaltung und zwei Querfaltungen gebildet werden. Das Ausbilden der Querfaltungen kann nach, bevorzugt aber vor, dem Ausbilden der Längsfaltung durchgeführt werden.In particular, a longitudinal fold and two transverse folds can be formed. The formation of the transverse folds can be carried out after, but preferably before, the formation of the longitudinal fold.

Weitere Merkmale und Vorteile der Erfindung werden nachfolgend anhand der beispielhaften Figuren erläutert. Dabei zeigen:

Figuren 1a und
1b eine Draufsicht auf eine Vorderseite bzw. eine Rückseite eines beispielhaften Staubsaugerfilterbeutels; und
Figuren 2a und 2b
perspektivische Ansichten eines mehrfach gefalteten beispielhaften Staubsaugerfilterbeutels.
Further features and advantages of the invention will be explained below with reference to the exemplary figures. Showing:
FIGS. 1a and
FIG. 1b is a plan view of a front side and a rear side, respectively, of an exemplary vacuum cleaner filter bag; FIG. and
FIGS. 2a and 2b
perspective views of a multiply folded exemplary vacuum cleaner filter bag.

Als Vorderseite wird in den folgenden Beispielen die Oberseite der ersten Seitenwand bezeichnet. Als Rückseite wird die Oberseite der zweiten Seitenwand bezeichnet.As a front side, the upper side of the first side wall is referred to in the following examples. The reverse side is the top of the second side wall.

Figur 1a und 1b zeigen eine Draufsicht auf eine Vorder- bzw. Rückseite eines beispielhaften Staubsaugerfilterbeutels 1. FIGS. 1a and 1b show a plan view of a front and a rear side of an exemplary vacuum cleaner filter bag. 1

Der beispielhafte Staubsaugerfilterbeutel 1 ist dabei als Flachbeutel ausgebildet. Insbesondere umfasst der Staubsaugerfilterbeutel 1 eine erste Seitenwand 2 und eine zweite Seitenwand 6, die am Rand umlaufend miteinander durch eine Schweißnaht 3 verschweißt sind. Die Schweißnaht 3 kann dabei mittels thermischem Schweißen und/oder mittels Ultraschallschweißen gebildet werden.The exemplary vacuum cleaner filter bag 1 is designed as a flat bag. In particular, the vacuum cleaner filter bag 1 comprises a first side wall 2 and a second side wall 6 which are circumferentially welded together by a weld 3 at the edge. The weld 3 can be formed by means of thermal welding and / or ultrasonic welding.

Auf der ersten Seitenwand 2 ist eine Halteplatte 4 angeordnet. Die Halteplatte 4 ist im Bereich einer Einströmöffnung 5 der Beutelwand des Staubsaugerfilterbeutels 1 angeordnet. Die Halteplatte 4 weist im Bereich der Einströmöffnung 5 ebenfalls ein Durchgangsloch auf. Im Betrieb des Staubsaugers kann durch die Einströmöffnung 5 die zu reinigende Luft in das Innere des Staubsaugerfilterbeutels 1 geleitet werden.On the first side wall 2, a holding plate 4 is arranged. The holding plate 4 is arranged in the region of an inflow opening 5 of the bag wall of the vacuum cleaner filter bag 1. The holding plate 4 also has a through hole in the region of the inflow opening 5. During operation of the vacuum cleaner, the air to be cleaned can be conducted into the interior of the vacuum cleaner filter bag 1 through the inlet opening 5.

Die Halteplatte 4 kann insbesondere aus einem Kunststoff gefertigt sein. Die Halteplatte 4 kann mit der Beutelwand verbunden, insbesondere verschweißt, sein. Die Einströmöffnung 5 und die Halteplatte 4 können beliebig auf der ersten Seitenwand 2 positioniert werden. Beispielsweise können die Einströmöffnung 5 und die Halteplatte 4 auch zentriert auf dem Staubsaugerfilterbeutel 1 angeordnet werden.The holding plate 4 may in particular be made of a plastic. The holding plate 4 can be connected to the bag wall, in particular welded, be. The inflow opening 5 and the holding plate 4 can be arbitrarily positioned on the first side wall 2. For example, the inflow opening 5 and the holding plate 4 can also be arranged centered on the vacuum cleaner filter bag 1.

Für den Vertrieb werden derartige Flachbeutel üblicherweise gefaltet und in einem Behälter, beispielsweise einer Faltschachtel, angeordnet.For distribution, such flat bags are usually folded and arranged in a container, for example a folding box.

Figuren 2a und 2b zeigen perspektivische Ansichten eines beispielhaften gefalteten Staubsaugerfilterbeutels 1. Die Beutelwand des beispielhaften Staubsaugerfilterbeutels 1 der Figuren 2a und 2b weist eine Faltung zur Oberseite der ersten Seitenwand 2 hin und zwei weitere Faltungen, bei denen die erste Seitenwand 2 und die zweite Seitenwand 6 in einer Richtung von der Oberseite der ersten Seitenwand 2 weg gefaltet sind, auf. Mit anderen Worten weist der beispielhafte Staubsaugerfilterbeutel 1 der Figuren 2a und 2b zwei Querfaltungen und eine Längsfaltung auf, wobei die Längsfaltung in einer Richtung zur Oberseite der ersten Seitenwand 2 hin ausgebildet ist. Die beiden Querfaltungen sind in diesem Beispiel von der Oberseite der ersten Seitenwand 2 weg ausgebildet. FIGS. 2a and 2b show perspective views of an exemplary folded vacuum cleaner filter bag 1. The bag wall of the exemplary vacuum cleaner filter bag 1 of FIGS. 2a and 2b indicates a fold toward the top of the first side wall 2 and two further folds in which the first side wall 2 and the second side wall 6 are folded in a direction away from the top of the first side wall 2. In other words, the exemplary vacuum cleaner filter bag 1 of the FIGS. 2a and 2b two transverse folds and a longitudinal fold, wherein the longitudinal fold is formed in a direction toward the top of the first side wall 2 out. The two transverse folds are formed in this example from the top of the first side wall 2 away.

Insbesondere ist ein Teil der Längsfaltungen zusammen mit der Querfaltung in einer Richtung zur Oberseite der ersten Seitenwand hin gefaltet. Mit anderen Worten wurden zuerst die Längsfaltungen gebildet und danach die Querfaltung.In particular, a portion of the longitudinal folds are folded together with the transverse fold in a direction toward the top of the first sidewall. In other words, first the longitudinal folds were formed and then the transverse fold.

Figur 2b zeigt die Rückseite des in Figur 2a dargestellten beispielhaften Staubsaugerfilterbeutels 1. FIG. 2b shows the back of the in FIG. 2a illustrated exemplary vacuum cleaner filter bag 1.

Bei dem beispielhaften Staubsaugerfilterbeutel der Figuren 2a und 2b wird eine Rückfaltung der Längsfaltung auf die beiden Querfaltungen, im Gegensatz zu im Stand der Technik bekannten Staubsaugerfilterbeuteln, vermieden. Dadurch kann sich der Staubsaugerfilterbeutel im zur Verfügung stehenden Bauraum eines Staubsaugers besser entfalten, insbesondere können sich die Querfaltungen besser entfalten. Außerdem neigt der durch die Längsfaltung abgeknickte Bereich der Beutelwand weniger dazu, sich vor eine Absaugöffnung des Staubsaugers zu legen.In the exemplary vacuum cleaner filter bag of FIGS. 2a and 2b a refolding of the longitudinal folding on the two transverse folds, in contrast to vacuum cleaner filter bags known in the art, is avoided. As a result, the vacuum cleaner filter bag can develop better in the available space of a vacuum cleaner, in particular, the transverse folds can develop better. In addition, the bent by the longitudinal fold portion of the bag wall is less likely to lie in front of a suction opening of the vacuum cleaner.

Der Faltenrücken der Längsfaltung verläuft in diesem Beispiel im Wesentlichen senkrecht zur Längskante des Staubsaugerbeutels 1 und parallel zur Querkante.The fold back of the longitudinal fold runs in this example essentially perpendicular to the longitudinal edge of the vacuum cleaner bag 1 and parallel to the transverse edge.

In diesem Fall ist der Staubsaugerfilterbeutel 1 rechteckig ausgebildet, weist also zwei Längskanten und zwei Querkanten auf, wobei die Längskanten länger als die Querkanten sind.In this case, the vacuum cleaner filter bag 1 is rectangular, thus has two longitudinal edges and two transverse edges, wherein the longitudinal edges are longer than the transverse edges.

Im Falle eines quadratischen Staubsaugerfilterbeutels, bei dem vier Seitenkanten der umlaufenden Schweißnaht dieselbe Länge aufweisen, kann eine Längsrichtung bzw. eine Querrichtung durch die Positionierung der Halteplatte auf der ersten Seitenwand definiert werden. Die Richtung in der die Halteplatte unterschiedliche Abstände zu zwei gegenüberliegenden Seitenkanten aufweist kann als Längsrichtung definiert werden. Die Querrichtung kann dann im Wesentlichen senkrecht dazu definiert werden. Seitenkanten, die in Längsrichtung verlaufen können dann als "Längskanten" und Seitenkanten, die in Querrichtung verlaufen, als "Querkanten" bezeichnet werden.In the case of a square vacuum cleaner filter bag in which four side edges of the circumferential weld have the same length, a longitudinal direction or a transverse direction can be defined by the positioning of the holding plate on the first side wall. The direction in which the holding plate has different distances to two opposite side edges can be defined as a longitudinal direction. The transverse direction can then be defined substantially perpendicular thereto. Side edges that run longitudinally may then be referred to as "longitudinal edges" and side edges that extend in the transverse direction are referred to as "transverse edges".

In diesem Beispiel ist die Längsfaltung derart ausgebildet, dass der umgefaltete Teil der Beutelwand die Halteplatte 4 nicht überdeckt oder überlappt. Es ist jedoch auch denkbar, dass die Längsfaltung derart ausgebildet ist, dass der umgefaltete Teil der Beutelwand die Halteplatte 4 teilweise oder vollständig überdeckt oder überlappt.In this example, the longitudinal fold is designed such that the folded-over part of the bag wall does not cover or overlap the holding plate 4. However, it is also conceivable that the longitudinal fold is formed such that the folded part of the bag wall, the support plate 4 partially or completely covers or overlaps.

Es versteht sich, dass in den zuvor beschriebenen Ausführungsbeispielen genannte Merkmale nicht auf diese speziellen Kombinationen beschränkt und auch in beliebigen anderen Kombinationen möglich sind. Insbesondere kann der Staubsaugerfilterbeutel in unterschiedlichen Geometrien und/oder Größen ausgebildet sein. Bei nicht rechteckigen Geometrien können Längskanten bzw. Querkanten durch die Positionierung der Halteplatte auf der ersten Seitenwand definiert werden.It is understood that in the embodiments described above mentioned features are not limited to these specific combinations and also possible in any other combinations. In particular, the vacuum cleaner filter bag may be formed in different geometries and / or sizes. For non-rectangular geometries, longitudinal edges can be used or transverse edges are defined by the positioning of the holding plate on the first side wall.

Claims (9)

  1. Vacuum cleaner filter bag (1) comprising a bag wall which comprises a first side wall (2) and a second side wall (6), a retaining plate (4) being arranged on the first side wall, characterised in that the bag wall has a fold in which the first side wall and the second side wall are both folded towards the upper face of the first side wall, and the bag wall has at least one additional fold in which the first side wall and the second side wall are both folded away from the upper face of the first side wall.
  2. Vacuum cleaner filter bag according to claim 1, wherein the vacuum cleaner filter bag is rectangular and wherein the fold towards the upper face of the first side wall extends substantially perpendicularly to the side walls.
  3. Vacuum cleaner filter bag according to either claim 1 or claim 2, wherein the at least one additional fold from the upper face of the first side wall extends in parallel with the side edges.
  4. Vacuum cleaner filter bag according to any of claims 1 to 3, comprising two additional folds away from the upper face of the first side wall and one fold towards the upper face of the first side wall.
  5. Vacuum cleaner filter bag according to claim 4, wherein the two additional folds extend substantially in parallel with one another and do not overlap.
  6. Vacuum cleaner filter bag according to either claim 4 or claim 5, wherein the two additional folds away from the upper face of the first side wall are longitudinal folds and the fold towards the upper face of the first side wall is a transverse fold, wherein a part of the longitudinal folds is folded, together with the transverse fold, towards the upper face of the first side wall.
  7. Container comprising at least one vacuum cleaner filter bag according to any of the preceding claims.
  8. Container according to claim 7, wherein the container is a collapsible box.
  9. Method for folding a vacuum cleaner filter bag, comprising the steps of:
    providing a vacuum cleaner filter bag (1) comprising a bag wall which comprises a first side wall (2) and a second side wall (6), wherein a retaining plate (4) is arranged on the first side wall, and
    folding the bag wall such that the first side wall and the second side wall are both folded towards the upper face of the first side wall; and
    folding the bag wall such that the first side wall and the second side wall are both folded away from the upper face of the first side wall.
EP10190755.8A 2010-11-10 2010-11-10 Folded vacuum cleaner filter bag Active EP2452603B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL10190755T PL2452603T3 (en) 2010-11-10 2010-11-10 Folded vacuum cleaner filter bag
EP10190755.8A EP2452603B1 (en) 2010-11-10 2010-11-10 Folded vacuum cleaner filter bag
DK10190755.8T DK2452603T3 (en) 2010-11-10 2010-11-10 Folded vacuum cleaner filter bag
ES10190755.8T ES2552640T3 (en) 2010-11-10 2010-11-10 Vacuum filter bag folded
PCT/EP2011/005624 WO2012062458A1 (en) 2010-11-10 2011-11-09 Folded vacuum cleaner filter bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10190755.8A EP2452603B1 (en) 2010-11-10 2010-11-10 Folded vacuum cleaner filter bag

Publications (2)

Publication Number Publication Date
EP2452603A1 EP2452603A1 (en) 2012-05-16
EP2452603B1 true EP2452603B1 (en) 2015-10-21

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EP (1) EP2452603B1 (en)
DK (1) DK2452603T3 (en)
ES (1) ES2552640T3 (en)
PL (1) PL2452603T3 (en)
WO (1) WO2012062458A1 (en)

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US20130055900A1 (en) * 2010-03-19 2013-03-07 Ralf Sauer Vacuum Cleaner Filter Bag

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DE102015101325A1 (en) * 2015-01-29 2016-08-04 Wolf Pvg Gmbh & Co. Kg Method and device for folding a vacuum cleaner bag
ES2857816T3 (en) * 2018-12-17 2021-09-29 Eurofilters Holding Nv Vacuum cleaner filter bag with improved weld bead strength
PL3753463T3 (en) * 2019-06-17 2023-09-18 Eurofilters Holding N.V. Vacuum cleaner filter bag for a hand vacuum cleaner

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DE2460871C3 (en) * 1974-12-21 1982-04-22 Gebrüder Voit, 8500 Nürnberg Vacuum cleaner insert bags
US4589894A (en) 1984-04-11 1986-05-20 Minnesota Mining And Manufacturing Co. Disposable filter for a vacuum cleaner
DE4214990A1 (en) 1992-05-06 1993-11-11 Minnesota Mining & Mfg Vacuum cleaner bags and process for their manufacture
EP1059056B1 (en) 1999-06-08 2004-11-03 3M Innovative Properties Company Dust bag and method for manufacturing the same
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JP3558290B1 (en) * 2003-06-23 2004-08-25 アイム株式会社 Dust collection filter for vacuum cleaner
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Publication number Priority date Publication date Assignee Title
US20130055900A1 (en) * 2010-03-19 2013-03-07 Ralf Sauer Vacuum Cleaner Filter Bag
US20130061566A1 (en) * 2010-03-19 2013-03-14 Ralf Sauer Vacuum Cleaner Filter Bag
US10178932B2 (en) * 2010-03-19 2019-01-15 Eurofilters Holding N.V. Vacuum cleaner filter bag
US10188248B2 (en) * 2010-03-19 2019-01-29 Eurofilters Holding N.V. Vacuum cleaner filter bag

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DK2452603T3 (en) 2016-01-18
PL2452603T3 (en) 2016-03-31
WO2012062458A1 (en) 2012-05-18
EP2452603A1 (en) 2012-05-16
ES2552640T3 (en) 2015-12-01

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