EP2018111B1 - Sac à filtre antipoussière - Google Patents

Sac à filtre antipoussière Download PDF

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Publication number
EP2018111B1
EP2018111B1 EP07725123.9A EP07725123A EP2018111B1 EP 2018111 B1 EP2018111 B1 EP 2018111B1 EP 07725123 A EP07725123 A EP 07725123A EP 2018111 B1 EP2018111 B1 EP 2018111B1
Authority
EP
European Patent Office
Prior art keywords
dust filter
filter bag
web
bag
folded
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
EP07725123.9A
Other languages
German (de)
English (en)
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EP2018111A1 (fr
Inventor
Jan Schultink
Ralf Sauer
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 NV
Original Assignee
Eurofilters 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 NV filed Critical Eurofilters NV
Publication of EP2018111A1 publication Critical patent/EP2018111A1/fr
Application granted granted Critical
Publication of EP2018111B1 publication Critical patent/EP2018111B1/fr
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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S15/00—Brushing, scrubbing, and general cleaning
    • Y10S15/08—Dust bags and separators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/02—Vacuum cleaner bags
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/05—Methods of making filter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y10T156/101—Prior to or during assembly with additional lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y10T156/1011—Overedge bending or overedge folding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y10T156/1013—Longitudinal bending and edge-joining of one piece blank to form tube
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding

Definitions

  • the invention relates to a dust filter bag in the form of a flat bag for a vacuum cleaner, which is formed from a first layer and a second layer of a weldable material, wherein the layers are circumferentially welded together along its circumference.
  • the dust filter bag according to the invention is particularly characterized in that one of the layers of the flat bag is at least partially folded on at least one side of the bag to the bag interior to form a first and second pleat leg.
  • a dust filter bag in the form of a flat bag with gussets is from the DE 20 2005 000 917 U1 known.
  • This flat bag consists of a top wall and a bottom wall congruent to this, wherein the wall material is formed of a flexible weldable material and at its peripheral edge is circumferentially welded together.
  • the characteristic of this dust filter bag is that on at least one side of the bag towards the inside of a folding is provided, which has been realized by a pleat leg formed by the upper wall and a folded leg formed by the lower wall.
  • this flat bag is thus assumed by two significant congruent upper and lower walls of the flexible material and then made a weld edge.
  • the wrinkling is then performed, so that the weld on the side at which the folding occurs, then when the bag is folded, is disposed within the fold. In the operating state, the folding can then be everted.
  • the invention is achieved with respect to the flat bag by the features of claim 1 and with respect to the method by the features of claim 12.
  • the folding be realized on at least one side of the bag of the flat bag in such a way that the folding in one of the two layers is made and the folding can be everted.
  • unfoldable is understood to mean the unfolding of the pleat legs relative to one another up to the complete outward protrusion of the side pleat.
  • the folding is realized in such a way that in the case of the pleat legs formed by the folding, the position of one pleat leg is greater than the other.
  • the dimensioning is designed so that the larger pleat leg can then be welded edge forming a supernatant with the second layer.
  • the fold is designed such that it is stowed out substantially over the entire width of the bag side.
  • the folding can be designed so that in the fully everted state, a substantially trapezoidal outer fold is formed. If the folding is additionally fixed in all marginal areas, then outer folds deviate from the trapezoidal shape.
  • a further embodiment of the invention proposes that the fold-out folding be formed in such a way, e.g. by a one-sided fixation that over at least one width of the bag side only partially an outer fold, e.g. in triangular form.
  • an outer fold e.g. in triangular form.
  • corresponding folds on two opposite sides of the bag can thus in the operating state, i. then, when the folding is completely everted, various forms are realized. So is u.a. also an offset arrangement possible, in each case the fixation of the folds have been made on opposite sides of the respective sides of the bag, so that the outer folds are arranged offset.
  • the dust filter bag according to the invention is preferably selected from its basic shape so that it has a rectangular or square shape.
  • a weldable air-permeable material for the individual layers of the flat bag according to the invention in particular nonwoven material, here also particularly preferred Composite materials of nonwoven materials with different filter properties suitable.
  • the introduced inlet opening is reinforced by a holding plate, which may also be designed to be closable.
  • the invention further relates to a method for producing a flat bag as described above.
  • the procedure is such that, in departure from that in the DE 20 2005 000 917 U1 described procedure, the folding is performed first and then then only the welding takes place.
  • this is done by providing a first web-shaped sub-web with a larger area than a web-shaped top web and then introducing the fold into this sub-web.
  • a folding is realized, which consists of a first and second pleat leg, wherein the second pleat leg has a greater leg length and forms a projection with respect to the web.
  • a welding of the upper web with the lower web wherein the lower web is welded in the edge region of the supernatant with the longitudinal edges of the upper web then takes place.
  • it is then only necessary to introduce transverse welds into correspondingly prescribed intervals and to carry out a separation.
  • the great advantage of the method according to the invention is the fact that due to the fact that First, a folding is introduced into the sub-web, can be formed by introducing punch-outs in the refolding and corresponding welds, folds, which then lead in the everted state to outer folds in different geometries.
  • Ausyogülpare outer folds can be realized in the fully everted state in trapezoidal and triangular shape, so that an adaptation of the dust filter bag to the different geometries of the dust collecting spaces of different vacuum cleaner models is possible.
  • the method according to the invention can be further formed so that at the same time a separation is carried out with the transverse welding to form the flat bag. It is also advantageous if, in order to support the folds, preliminary breaks are introduced into the lower web.
  • ultrasonic welding has proven to be suitable as a welding method.
  • FIG. 1 is shown schematically in plan view, a dust filter bag in the form of a flat bag 1 in a rectangular shape.
  • a dust filter bag in the form of a flat bag 1 in a rectangular shape.
  • 2 and 3 are not visible from the plan view folds, in the example after FIG. 1 are formed on the bag sides 4 and 5 in trapezoidal shape, symbolizes.
  • an inlet opening 6 is provided in the middle of the flat bag 1.
  • the shape of the flat bag 1 which is chosen here square, can of course also deviate from the square shape and be formed rectangular.
  • the flat bag points a circumferential weld 11, which has been realized by means of ultrasonic welding, the material of the flat bag is a multilayer nonwoven material.
  • FIG. 2 now shows the cross section according to the section line II in the embodiment according to FIG. 1 , FIG. 2 particularly clearly illustrates the folding 2, 3 according to the invention.
  • the dust filter bag according to the embodiment according to FIG. 1 consists of a first layer 8 and a second layer 7 of the multilayer weldable material.
  • the first layer 8 has a fold with the pleat legs 9, 10 or 9 ', 10'.
  • the pleat legs 9, 10 and 9 ', 10' are designed so that they have an unequal length, wherein the larger of the pleat legs 9, 9 'forms a projection with respect to the layer 8.
  • the folding according to the invention causes, when the filter bag is filled in the inserted state through the inlet opening 6 with dust-laden air, a puffing, so that then expand the folds 2, 3 with the pleat legs 9, 10 and 9 ', 10' and optionally turn outward so that an enlarged volume is created.
  • FIG. 3 is the corresponding shape, which then results in fully everted state, shown schematically in plan view.
  • the reference numerals 2 and 3 denote the everted folds, which form a trapezoidal shape.
  • FIG. 4 now shows a further embodiment of a flat bag according to the invention.
  • flat bag after the FIG. 4 while the folding was designed so that they now on a bag side and indeed as here in FIG. 4 on the same side 23, at the edge welded to the weld 11, so that only one side on the side 24 a protuberance to form an outer fold 13, 13 'takes place and on the bag side 23, in which a fusion of the folds simultaneously with the circumferential weld 11 takes place, an inner fold 14, 14 'is formed, so that overall results in a conical configuration of the dust filter bag in the fully everted state.
  • the manufacturing process for this purpose is in the FIG. 8 (Bag side 24) and FIG. 7 (Bag side 23) explained in more detail.
  • FIG. 5 Now shows a further modification of the flat bag, in which a folding, as in FIG. 4 shown only on one side of the bag.
  • FIG. 6 Yet another embodiment in which an offset arrangement of the outer folds 13 and 13 'has been performed by appropriate fixing on the sides 23 and 24 of the respective gussets, so that the outer folds 13, 13' are arranged offset.
  • FIG. 7 now shows in the figure sequence 7a to 7g a first manufacturing method for the flat bag according to the invention.
  • a web-shaped sub-web made of a nonwoven fabric is provided in a first step.
  • the dimensioning of this sub-web is selected in width (denoted by b) in such a way that, after folding, a width c is realized ( FIG. 7c ), which corresponds approximately to the then to be connected to the sublane upper web.
  • FIG. 7a is indicated by the arrow the direction of the lower web.
  • the procedure is such that, preferably, in a first step, the web-shaped lower web is folded over. This is in FIG. 7b shown.
  • FIG. 7c shown a refolding performed so that a fold to form a first pleat leg 10 and a second pleat leg 9 and 9 'or 10'entsteht.
  • the second pleat leg 9 or 9 ' which forms a supernatant, is chosen to be greater in its leg length than the pleat legs 10 and 10'.
  • a top web is placed on the so-folded sub-web.
  • the dimensioning of the top sheet is chosen so that the longitudinal edges are approximately flush with the edges of the pleat legs 9 and 9 '.
  • the upper track is, as here in FIG. 7d already provided with a filling opening 6 and a holding plate (not shown).
  • FIG. 7g For the completion of the filter bag, it is now only necessary at a predetermined distance Querversch spa 11, as shown in Figure 7f are shown to bring. Finally, a separation takes place in the region of the transverse welds 11, so that then a finished filter bag is formed ( FIG. 7g ).
  • FIGS. 7a to 7g In the manufacturing process of the filter bag according to the invention, as described in the FIGS. 7a to 7g is shown, now creates a filter bag, in which folds 2, 3 are present, which are fixed in each case by the circumferential weld 11 on the bag sides 23, 24. In the operating state then takes place in the embodiment, as with the method of the FIG. 7 is realized, an expansion of the pleat legs or a protuberance.
  • FIGS. 8a to 8h show a variant of the production method of the flat bag according to the invention.
  • FIG. 8b shown after punching punched 30 introduced into the folded area.
  • These cut-outs 30 are preferably welded circumferentially to form the weld 31 (see FIG. 8c ).
  • FIG. 7d After welding the punched holes 30 then a refolding, as already in FIG. 7d is shown.
  • Analogous to the procedure, as in the FIG. 7 has been described, followed by a laying of the upper web (8e) and a welding of the longitudinal edges to form the weld 11 (8f).
  • the transverse weld 11 is selected is that they each leads through the corresponding punched 30.
  • An embodiment is shown in which the punched-out portions 30 are arranged symmetrically and the respective transverse welds 11 are guided centrally through the punched-out portions 30.
  • FIG. 8 produced flat bag corresponds to the flat bag after FIG. 1 ,
  • FIGS. 8a to 8h likewise makes clear that the method according to the invention has great flexibility.
  • dust filter bags are produced, which have shapes in the everting state, as in the FIGS. 4 to 6 have been shown.
  • the inventive method thus has an extremely high flexibility with respect to the dust filter bag to be produced and at the same time is technically easy to perform.

Claims (22)

  1. Sac filtrant à poussières sous la forme d'un sac plat (1) pour un aspirateur, qui se compose d'une première couche (8) et d'une deuxième couche (7) en matériau soudable, les deux couches (7, 8) étant assemblées par soudage de façon périphérique le long de leur périmètre, et en ce qu'au moins une ouverture d'entrée (6) est mise en place dans une des deux couches,
    caractérisé en ce que l'une des couches du sac plat est pliée vers l'intérieur de façon retroussable sur au moins un côté du sac vers l'intérieur du sac avec formation d'une première et d'une deuxième patte de pli (9, 9', 10, 10') qui sont de longueur inégale,
    le pli intérieur (2 ou respectivement 3) formé par deux pattes de pli (9, 9', 10, 10') ne présentant respectivement pas de soudure.
  2. Sac filtrant à poussières selon la revendication 1,
    caractérisé en ce que, sur deux côtés opposés du sac (4, 5), la couche est respectivement pliée vers l'intérieur de façon retroussable.
  3. Sac filtrant à poussières selon la revendication 1 ou 2,
    caractérisé en ce que le plissage vers l'intérieur retroussable est constituée de telle sorte qu'il est essentiellement retroussable sur toute la largeur du/des côté(s) du sac (4, 5).
  4. Sac filtrant à poussières selon la revendication 3,
    caractérisé en ce que le plissage vers l'intérieur (2, 3) est constitué de telle sorte que, dans l'état entièrement retroussé, il forme un pli extérieur essentiellement trapézoïdal.
  5. Sac filtrant à poussières selon la revendication 1 ou 2,
    caractérisé en ce que le plissage vers l'intérieur (2, 3) retroussable est constitué de telle sorte qu'il n'est que partiellement retroussable sur la largeur du/des côté(s) du sac (4, 5).
  6. Sac filtrant à poussières selon la revendication 5,
    caractérisé en ce que le plissage vers l'intérieur est constitué de telle sorte que, dans l'état entièrement retroussé, il forme un pli extérieur (13, 13') essentiellement triangulaire.
  7. Sac filtrant à poussières selon la revendication 5,
    caractérisé en ce que, sur deux côtés opposés du sac (4, 5), les plis extérieurs (13, 13') sont disposés de façon opposée.
  8. Sac filtrant à poussières selon au moins une des revendications 1 à 7, caractérisé en ce que le sac filtrant à poussières possède une forme rectangulaire ou carrée.
  9. Sac filtrant à poussières selon au moins une des revendications 1 à 8, caractérisé en ce que le matériau des couches du sac filtrant à poussières est un matériau non tissé.
  10. Sac filtrant à poussières selon la revendication 9,
    caractérisé en ce que le matériau non tissé est un matériau composite constitué de plusieurs couches.
  11. Sac filtrant à poussières selon au moins une des revendications 1 à 10, caractérisé en ce que l'ouverture d'entrée (6) au moins au nombre de un est renforcée par une plaque de retenue.
  12. Procédé de fabrication d'un sac plat filtrant à poussières (1) selon au moins une des revendications 1 à 11,
    caractérisé en ce que
    a) il est fourni une bande inférieure en forme de bande avec une surface plus grande en vis-à-vis d'une bande supérieure en forme de bande,
    b) un plissage est réalisé dans la bande inférieure au moins sur un côté, avec formation d'une première (9) et d'une deuxième (10) patte de pli, la deuxième patte de pli (10) présentant une plus grande longueur de patte et formant une saillie,
    c) la bande supérieure est placée sur la bande inférieure,
    d) la bande inférieure est soudée dans la zone de bord de la saillie avec les bords longitudinaux de la bande supérieure,
    e) la bande inférieure est soudée de façon croisée avec la bande supérieure sur une distance prédéfinie, et
    f) une séparation intervient dans la zone des soudures croisées pour la formation du sac plat (1) avec une première (7) et une deuxième (8) couche.
  13. Procédé selon la revendication 12,
    caractérisé en ce que le plissage est réalisé sur deux côtés (4, 5) opposés de la bande inférieure en forme de bande.
  14. Procédé selon la revendication 12 ou 13,
    caractérisé en ce que, pour la formation du plissage vers l'intérieur (caractéristique b)) dans la bande inférieure, un rabat est effectué dans une première étape et, dans une deuxième étape, un sur-plissage est effectué avec formation d'une saillie.
  15. Procédé selon la revendication 14,
    caractérisé en ce que des découpes (30) sont réalisées dans la zone rabattue de la bande inférieure et leurs bords sont soudés entre eux au moins partiellement, et en ce que ensuite le sur-plissage est effectué.
  16. Procédé selon la revendication 15,
    caractérisé en ce que le nombre et l'espacement des découpes (30) dans la bande inférieure sont choisis de telle sorte que, dans le cas de la soudure croisée (caractéristique e)), au moins une soudure croisée traverse un évidement.
  17. Procédé selon la revendication 16,
    caractérisé en ce que les soudures croisées (caractéristique e)) traversent respectivement deux découpes (30) disposées de chaque côté.
  18. Procédé selon au moins l'une des revendications 16 ou 17,
    caractérisé en ce que les découpes (30) sont essentiellement trapézoïdales, triangulaires ou semi-circulaires.
  19. Procédé selon au moins l'une des revendications 12 à 18,
    caractérisé en ce qu'au moins une ouverture d'entrée (6) est mise en place dans la bande supérieure.
  20. Procédé selon au moins l'une des revendications 12 à 19,
    caractérisé en ce que les soudures croisées et la séparation (caractéristiques e) et f)) sont réalisées en une passe de travail.
  21. Procédé selon au moins l'une des revendications 12 à 20,
    caractérisé en ce que des pré-plis sont mis en place dans la bande inférieure pour assister les plissages vers l'intérieur.
  22. Procédé selon au moins l'une des revendications 12 à 21,
    caractérisé en ce que la soudure (11) est effectuée au moyen d'un soudage par ultrasons.
EP07725123.9A 2006-05-19 2007-05-11 Sac à filtre antipoussière Active EP2018111B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006023707A DE102006023707B3 (de) 2006-05-19 2006-05-19 Staubfilterbeutel
PCT/EP2007/004203 WO2007134734A1 (fr) 2006-05-19 2007-05-11 Sac à filtre antipoussière

Publications (2)

Publication Number Publication Date
EP2018111A1 EP2018111A1 (fr) 2009-01-28
EP2018111B1 true EP2018111B1 (fr) 2016-02-03

Family

ID=38330445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07725123.9A Active EP2018111B1 (fr) 2006-05-19 2007-05-11 Sac à filtre antipoussière

Country Status (8)

Country Link
US (1) US8097054B2 (fr)
EP (1) EP2018111B1 (fr)
CN (1) CN101448446B (fr)
AU (1) AU2007251981B2 (fr)
DE (1) DE102006023707B3 (fr)
ES (1) ES2564245T3 (fr)
NO (1) NO341014B1 (fr)
WO (1) WO2007134734A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008006769B4 (de) 2008-01-30 2013-08-08 Arwed Löseke Papierverarbeitung und Druckerei GmbH Verfahren zur Herstellung eines Staubfilterbeutels mit Seitenfalten
EP2266450B1 (fr) * 2009-06-24 2016-09-21 Eurofilters N.V. Filtre sac à fond plat pour aspirateurs
US8075649B2 (en) * 2009-12-01 2011-12-13 Zenith Technologies, Llc Vacuum bag and vacuum bag attachment assembly
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Publication number Publication date
NO20084831L (no) 2009-02-19
EP2018111A1 (fr) 2009-01-28
ES2564245T3 (es) 2016-03-21
NO341014B1 (no) 2017-08-07
CN101448446A (zh) 2009-06-03
US8097054B2 (en) 2012-01-17
AU2007251981B2 (en) 2011-09-08
AU2007251981A1 (en) 2007-11-29
WO2007134734A1 (fr) 2007-11-29
DE102006023707B3 (de) 2008-01-03
CN101448446B (zh) 2012-02-01
US20090308032A1 (en) 2009-12-17

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