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EP3178360B2 - Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur - Google Patents
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EP3178360B2 - Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur - Google Patents

Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur

Info

Publication number
EP3178360B2
EP3178360B2 EP15199696.4A EP15199696A EP3178360B2 EP 3178360 B2 EP3178360 B2 EP 3178360B2 EP 15199696 A EP15199696 A EP 15199696A EP 3178360 B2 EP3178360 B2 EP 3178360B2
Authority
EP
European Patent Office
Prior art keywords
retaining plate
wall
vacuum cleaner
filter bag
cleaner filter
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
EP15199696.4A
Other languages
German (de)
English (en)
Other versions
EP3178360B1 (fr
EP3178360A1 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=55027273&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3178360(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eurofilters NV filed Critical Eurofilters NV
Priority to EP15199696.4A priority Critical patent/EP3178360B2/fr
Priority to ES15199696T priority patent/ES2916748T3/es
Priority to US16/060,746 priority patent/US10925450B2/en
Priority to AU2016366505A priority patent/AU2016366505B2/en
Priority to ES16809066T priority patent/ES2972226T3/es
Priority to DK16809066.0T priority patent/DK3386363T3/da
Priority to PL16809066.0T priority patent/PL3386363T3/pl
Priority to EP16809066.0A priority patent/EP3386363B1/fr
Priority to PCT/EP2016/080568 priority patent/WO2017098035A1/fr
Priority to CN201680081239.3A priority patent/CN108697286B/zh
Publication of EP3178360A1 publication Critical patent/EP3178360A1/fr
Publication of EP3178360B1 publication Critical patent/EP3178360B1/fr
Application granted granted Critical
Publication of EP3178360B2 publication Critical patent/EP3178360B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures

Definitions

  • the present invention relates to methods for producing an improved material-bonded connection between a retaining plate and the wall of a vacuum cleaner filter bag.
  • the retaining plate is not applied directly to the wall of the vacuum cleaner filter bag, but a textile material is arranged between the retaining plate and the wall. The connection between the retaining plate and the wall of the vacuum cleaner filter bag is achieved via the textile material.
  • a film made of a thermoplastic material is arranged in a specific area between the retaining plate and the wall of the vacuum cleaner filter bag. The connection between the retaining plate and the wall of the vacuum cleaner filter bag is achieved via the film.
  • the retaining plate is directly connected to the wall of the vacuum cleaner filter bag.
  • the wall is formed, at least in the area where the retaining plate is applied, as a film made of special thermoplastic materials.
  • the present invention also relates to vacuum cleaner filter bags in which the retaining plate is material-bonded to the wall of the vacuum cleaner filter bag according to the preceding principles.
  • the vacuum cleaner bag retaining plate is joined to the filter bag's nonwoven fabric by bonding with a thermally activated adhesive (e.g., hot melt) or by ultrasonic welding. Due to the short welding time and the high strength and process reliability of the weld, ultrasonic welding is the preferred method.
  • a thermally activated adhesive e.g., hot melt
  • ultrasonic welding is the preferred method.
  • the DE 20 2008 002 010 U1 This describes a filter bag for a vacuum cleaner, wherein the filter bag comprises a dust collection bag connected to a retaining plate which has an opening for a vacuum cleaner nozzle, fitted with a seal made of a polymeric material.
  • the dust collection bag is directly bonded and/or welded to the seal.
  • the DE 20 2008 004 025 U1 Describes a filter, in particular a vacuum cleaner bag, with a filter material in which an inlet opening is provided.
  • This opening contains a sealing device for creating a seal with a nozzle, which is arranged adjacent to a retaining plate.
  • the sealing device comprises at least one elastic rubber layer with an opening, which is reinforced by a further, stiffer material layer with an opening aligned with the opening of the rubber layer.
  • a vacuum cleaner filter bag a filter bag material which has an inner layer of nonwoven material at least in the area of the inlet opening, and a retaining plate arranged on the outside of the filter bag in the area of the inlet opening, which can be attached to a holding device of a vacuum cleaner for holding the vacuum cleaner filter bag and on which a closing device for closing the inlet opening is provided, is known, wherein the nonwoven material has a surface in the area of the inlet opening which is designed in such a way that the formation of a filter cake on this surface is avoided.
  • the object of the present invention is therefore to provide reliable methods for connecting a retaining plate to the wall of a vacuum cleaner filter bag, thereby avoiding the aforementioned disadvantages.
  • the connection between the retaining plate and the wall of the filter bag should be easy to achieve, the resulting connection should withstand high tensile loads, and the results obtained should be reproducible.
  • the invention thus relates according to a first This section describes a method for bonding a retaining plate to the wall of a vacuum cleaner filter bag.
  • the wall of the vacuum cleaner filter bag has a designated location for attaching the retaining plate. This location can vary depending on the design of the vacuum cleaner filter bag to be subsequently manufactured from the wall of the vacuum cleaner filter bag.
  • a material-, force-, or form-fit connection is created between the wall of the vacuum cleaner filter bag and at least one, and in particular exactly one, layer of a textile material, and that the retaining plate is pressed against the side of the wall of the vacuum cleaner filter bag covered with the textile material at the mounting point. Subsequently, a material-fit connection is created between the wall of the vacuum cleaner filter bag, the textile material, and the retaining plate.
  • At least one layer of a textile material is first applied to the wall of the vacuum cleaner filter bag at the point of attachment of the retaining plate and is connected there at least partially to the wall of the vacuum cleaner filter bag.
  • the mounting location is understood to be the area of the wall of the vacuum cleaner filter bag on which the retaining plate is later placed, i.e., the area of the wall that is defined by the outline of the retaining plate in projection onto the wall.
  • the textile material can be applied only to specific areas of the mounting location, so that only a portion of the surface on which the mounting plate will later be positioned is covered with textile material. This design is particularly useful when it is sufficient only as a localized or partial reinforcement of the bond between the mounting plate and the wall of the vacuum cleaner filter bag. One or more strips of textile material can also suffice for reinforcement. In particular, the area of the bond, e.g., the weld, that experiences the highest stress can be reinforced.
  • connection of the textile material to the wall can be achieved, for example, by spot welding, spot gluing, or by permanent or temporary mechanical fixings such as clamping connections.
  • the retaining plate is pressed onto the textile material so that at least part of its surface rests on the material.
  • the entire surface of the retaining plate can be adapted to the textile material, provided that the area of the textile material used is sufficiently large, i.e., at least as large as the base area of the retaining plate.
  • a material-bonded connection is created between the wall of the vacuum cleaner filter bag and the retaining plate through the textile material.
  • This can be achieved, for example, by welding, particularly ultrasonic welding, or by gluing.
  • an adhesive is applied to either the textile material, the retaining plate, or both the textile material and the retaining plate before the retaining plate is pressed onto the textile material.
  • a second embodiment of the first aspect of the invention provides that, at least in certain areas of the retaining plate, a material-, force-, or form-fit connection is created between the retaining plate and at least one, in particular exactly one, layer of a textile material, and that the retaining plate, with the side provided with the textile material, is pressed against the wall of the vacuum cleaner filter bag at the point of attachment.
  • a material-fit connection between the wall and the textile material is subsequently created in the manner described above.
  • the textile material is fixed to the mounting plate, at least in certain areas.
  • the mounting plate, together with the textile material fixed at least in certain areas, is then pressed onto the wall of the vacuum cleaner filter bag at the point of attachment and connected to it through the textile material.
  • the textile material can be attached, for example, only to certain areas of the mounting plate, such that it does not cover the entire surface, or that the textile material extends beyond one edge of the mounting plate, but does not cover the entire surface that will later be attached to the wall. It is also possible for the textile material to cover the entire surface of the mounting plate, even extending beyond the edge.
  • the mounting plate has an opening for a vacuum cleaner nozzle, a passage through the textile material can be created if it is positioned on the mounting plate in such a way that the opening is partially or completely covered. The opening can be inserted before or after being attached to the mounting plate. Insertion of the opening is also possible after the mounting plate has been bonded to the wall of the vacuum cleaner filter bag.
  • the textile material can be attached to the mounting plate in the same way as the textile material is attached to the wall according to the first method, i.e., for example, by spot welding, spot gluing, or also by permanent or temporary mechanical fixings such as clamping connections, etc. Additionally, it is possible to mold the textile material onto the mounting plate during the manufacturing process. In particular, if the mounting plate is produced using injection molding, the textile material can, for example, be introduced directly into the injection mold and thus bonded to the mounting plate during the injection molding process.
  • the joining of the retaining plate covered with the textile material is otherwise identical to the first variant, i.e., here too, the retaining plate can be glued or welded to the wall via the textile material.
  • At least one, and in particular exactly one, layer of a textile material is inserted between the wall of the vacuum cleaner filter bag and the retaining plate, at least in the area of the mounting point of the retaining plate.
  • the retaining plate, together with the textile material is then pressed against the wall of the vacuum cleaner filter bag at the mounting point.
  • a material-bonded connection between the wall and the retaining plate is ultimately formed via the textile material.
  • the textile material is inserted between the wall and the retaining plate without prior fixation, for example, by being placed at the designated location. Only a single bonding process takes place, in which the retaining plate is bonded to the wall of the vacuum cleaner filter bag through the textile material.
  • the textile material can also be applied only to specific areas of the mounting location, so that only a portion of the surface on which the mounting plate will later be placed is covered with textile material. It is also possible to cover the entire area defining the mounting location of the mounting plate with textile material. Furthermore, the area of the textile material can be larger than the mounting location, so that after the mounting plate is attached to the wall, textile material protrudes below the mounting plate.
  • the wall of the vacuum cleaner filter bag comprises, consists of, or is formed from a thermoplastic material, at least in the area where the mounting plate is attached.
  • thermoplastic materials suitable for the wall of the vacuum cleaner filter bag include polyolefins, in particular polyethylene, polypropylene, or polystyrene; polyesters, in particular PET, PBT, PC, or PLA; thermoplastic elastomers, in particular TPE-O, TPE-V, TPE-U, TPE-E, TPE-S, or TPE-A; poly(meth)acrylates; polyamides; polybenzimidazoles; polyethersulfones; polyetheretherketones; polyetherimides; polyphenylene oxides; polyphenylene sulfides; and polytetrafluoroethylene, as well as mixtures, blends, or combinations thereof.
  • the wall of the vacuum cleaner filter bag can, at least in the area where the mounting plate is attached, be designed, for example, as a film or a nonwoven fabric
  • the textile material comprises or consists of or is formed from thermoplastic fibers and/or thermoplastic filaments.
  • thermoplastic fibers or filaments of the textile material can be made from the same or different materials that were previously mentioned for the wall of the vacuum cleaner filter bag.
  • At least the bearing surface of the retaining plate comprises at least some areas of a thermoplastic material or consists entirely of a thermoplastic material or is formed entirely of a thermoplastic material, or if the entire retaining plate consists of a thermoplastic material or is formed entirely of a thermoplastic material.
  • thermoplastic materials mentioned earlier for the wall of the vacuum cleaner filter bag are also particularly suitable for use as the retaining plate.
  • the materials used for the retaining plate can be the same as, or different from, those used for the wall of the vacuum cleaner filter bag or the textile material.
  • thermoplastic materials of the textile material melt more readily, i.e., at lower temperatures, than the thermoplastic materials of the wall and/or the retaining plate, and/or are lower in viscosity at the same temperature. This earlier melting and/or lower viscosity of the melt of these materials results in improved wetting of the wall and the retaining plate, particularly in a welded joint, leading to a significantly improved bond between the retaining plate and the wall of the vacuum cleaner filter bag.
  • thermoplastic materials for the wall of the vacuum cleaner filter bag include polyolefins, especially polypropylene or polyethylene, polyester or - in the case that the wall is designed as a film laminate at least at the point of attachment - thermoplastic polymers, especially TPE or TPU as the layer of this laminate facing the retaining plate.
  • Materials used for the mounting plate include polyolefins such as polypropylene or polyethylene, or polyesters, especially PET.
  • the materials particularly suitable for the textile material are preferably thermoplastic elastomers, such as TPE or TPU.
  • the textile material it is also possible for the textile material to be made of the same thermoplastics as the mounting plate or the wall; in this case, however, as described above, it is preferable for the thermoplastic material to have a lower melting point.
  • the wall, mounting plate, and textile material are all made of PP, it is advantageous to use a PP grade for the textile material that has a lower melting point and/or a higher melting point index (MFI) than the PP grades used for the mounting plate and wall.
  • MFI melting point index
  • the textile material is selected from the group consisting of nonwovens, nets, woven fabrics, knitted fabrics, non-woven fabrics, crocheted fabrics, braided fabrics, sewn knitted fabrics, and felts, as well as combinations thereof.
  • Nonwovens and netting are particularly preferred, with spunbond nonwovens and carded nonwovens being especially favored.
  • the textile material is formed in a planar form and in particular has a basis weight of 5 to 200 g/m 2 , preferably 10 to 100 g/m 2 , particularly preferably 15 to 50 g/m 2 .
  • the wall of the vacuum cleaner filter bag is formed, at least in the area where the retaining plate is to be fixed, as a film made of a thermoplastic material, a film laminate in which at least the side on which the retaining plate is applied consists of a thermoplastic material, or as a nonwoven fabric made of a thermoplastic material.
  • the smooth surface of the film makes it difficult to securely weld a mounting plate to it. It is suspected that, particularly during the welding process, complete wetting of the film or film laminate cannot be achieved. Surprisingly The wetting of the film or film laminate can be improved by placing a textile material between the mounting plate and the film or film laminate. It is particularly preferred if the textile material itself consists of a thermoplastic polymer, especially a thermoplastic elastomer, and melts during the welding process. This allows for significantly better wetting of the film, thus considerably improving the resulting maximum tensile force that can act on the mounting plate before partial or complete detachment.
  • an inlet opening contained in the retaining plate into which, for example, a vacuum cleaner nozzle can be inserted, is also arranged in alignment with the bag inlet opening and the through-opening.
  • the retaining plate can then subsequently be applied with its inlet opening flush with the through-opening of the textile material.
  • the geometric shape of the textile material can be determined by the desired weld geometry.
  • the weld is round and has a width of a few millimeters to centimeters. Therefore, it is sufficient to position a corresponding ring of textile material between the film and the mounting plate and join them to the film and mounting plate in one step using the established ultrasonic welding process.
  • the textile material can, for example, be designed as a strip of material that can also be wider than the intended weld seam to facilitate positioning.
  • the bag inlet opening of the wall of the vacuum cleaner filter bag and/or the passage opening of the textile material can be dimensioned in diameter smaller than or the same size as the inlet opening of the retaining plate.
  • This embodiment provides that either the bag inlet opening in the wall of the vacuum cleaner filter bag, or the opening through the textile material, or both the bag inlet opening and the opening through the textile material are smaller in diameter than the inlet opening of the retaining plate.
  • This resulting protrusion towards the recess (filling hole) forms a seal that can seal the vacuum cleaner nozzle inserted into the interior of the resulting vacuum cleaner filter bag via the inlet opening of the retaining plate.
  • a good sealing effect is particularly noticeable when the opening through the textile material (and, if applicable, the bag inlet opening in the wall of the vacuum cleaner filter bag) is smaller.
  • the textile material can be additionally connected to the wall of the vacuum cleaner filter bag, for example, by welding. However, it is also possible to leave the textile material unconnected to the wall of the vacuum cleaner filter bag in this area.
  • At least one flat sealing element is inserted at the mounting location of the retaining plate on the inside of the wall of the vacuum cleaner filter bag, between the wall of the vacuum cleaner filter bag and the textile material and/or between the textile material and the retaining plate, which is preferably made of TPE or TPU and which has a passage opening that is aligned with the passage opening of the retaining plate, but has a smaller diameter than the diameter of the through-hole of the retaining plate.
  • the contact surface of the mounting plate is at least partially structured and/or has directional sensors for ultrasound.
  • a directional sensor can, for example, be designed as a raised groove on the mounting surface of the mounting plate.
  • the wall of the vacuum cleaner filter bag is made of film or film laminate at least in the area where the mounting plate is attached, the film or film laminate is structured at least at the point of attachment, in particular highly-low structured, such as knurled.
  • the film used can also be a laminate made of two different thermoplastic materials.
  • the layer of the laminate that is more easily activated by ultrasound faces the mounting plate. If this layer is, for example, a TPE and the mounting plate is aligned with the one in the EP2311358 A1 When equipped with the described TPE welding aid, a particularly good bond is achieved. In this case, the additional incorporation of a textile material is also advantageous.
  • thermoplastic elastomer such as, for example, TPE-O, TPE-V, TPE-U, TPE-E, TPE-S, or TPE-A
  • a thermoplastic elastomer is applied at least partially to the wall, at least in the mounting location of the retaining plate, and/or to the side of the textile material facing the wall and/or to the side of the textile material facing the retaining plate, e.g., by means of a printing process, in particular by functional screen printing.
  • the thermoplastic elastomer can, for example, be applied to the respective surface in the form of bumps or concentric circles.
  • the present invention relates to a further method for bonding a retaining plate to the wall of a vacuum cleaner filter bag at a designated attachment point.
  • no textile material is used between the retaining plate and the wall to reinforce the bond, but rather a film made of a thermoplastic material, which is only applied to one area of the attachment point.
  • the second aspect of the method according to the invention is also available in three variants.
  • a material-, force- or form-fitting bond is created between the wall of the vacuum cleaner filter bag and at least one, in particular exactly one, layer of a film made of a thermoplastic material, the retaining plate is pressed onto the side of the wall of the vacuum cleaner filter bag provided with the film at the mounting point and subsequently a material-bonded bond is created between the wall of the vacuum cleaner filter bag, the film and the retaining plate.
  • a material-, force- or form-fitting connection between the retaining plate and at least one, in particular exactly one, layer of a film made of a thermoplastic material is produced in certain areas of the retaining plate, and the retaining plate with the side provided with the film is pressed against the wall of the vacuum cleaner filter bag at the point of attachment, and subsequently a material-fitting connection is produced between the wall of the vacuum cleaner filter bag, the film and the retaining plate.
  • At least one, in particular exactly one, layer of a film made of a thermoplastic material is inserted between the wall of the vacuum cleaner filter bag and the retaining plate in the area of the mounting point of the retaining plate, the retaining plate together with the film is pressed against the wall of the vacuum cleaner filter bag at the mounting point and then a material-bonded connection is created between the wall of the vacuum cleaner filter bag, the film and the retaining plate.
  • the film is made of a thermoplastic material having a melting temperature that is less than or equal to, preferably less than, particularly preferably at least 10 °C less than, and in particular at least 20 °C less than, the melting temperature of the thermoplastic material of the wall of the vacuum cleaner filter bag and/or the melting temperature of the thermoplastic material of the retaining plate (5), wherein the melting temperature is determined in each case according to ISO 11357, and/or has a melt flow rate (MFR) that is greater than or equal to, preferably greater than, and particularly preferably by a factor of 10 to 20 greater than, the melt flow rate of the thermoplastic material of the wall (1) of the vacuum cleaner filter bag and/or the melt flow rate of the thermoplastic material of the retaining plate (5), wherein the melt flow rate is determined in each case according to ISO 11357.
  • MFR melt flow rate
  • the value is determined according to ISO 1133, at a nominal load of 2.16 kg and a temperature of 230 °C.
  • the materials that can be used, in particular, for the film correspond to the materials that have been named as preferred materials for the aforementioned textile materials.
  • the film which is inserted between the mounting plate and the wall, is designed as a strip of material.
  • the film is not arranged in the area of the inlet opening of the retaining plate or the bag inlet opening of the wall of the vacuum cleaner filter bag, but preferably in the edge area of the mounting location of the retaining plate.
  • the area in which the film is arranged preferably comprises 5 to 70%, more preferably 10 to 50%, and particularly preferably 15 to 25% of the area where the mounting plate is attached.
  • the foil inserted between the wall and the mounting plate can be continuous or slotted and/or perforated.
  • thermoplastic elastomer such as, for example, TPE-O, TPE-V, TPE-U, TPE-E, TPE-S, or TPE-A
  • a thermoplastic elastomer is applied at least partially to the wall, at least in the area where the mounting plate is attached, and/or to the side of the film facing the wall and/or to the side of the film facing the mounting plate, e.g., by means of a printing process, in particular by functional screen printing.
  • the thermoplastic elastomer can, for example, be applied to the respective surface in the form of bumps or concentric circles.
  • this second aspect of the invention is identical to the first. To avoid repetition, reference is made to the preceding statements made regarding the first aspect of the invention.
  • connection options for bonding the film to the wall or the mounting plate correspond to those already discussed in the first aspect of the present invention.
  • spot welding or bonding, or full-surface welding are suitable.
  • the final production of the bond between wall, film and retaining plate is also carried out analogously to the production of the bond between wall, textile material and retaining plate according to the first aspect of the invention.
  • a third aspect of the present invention relates to a further method for joining a retaining plate to the wall of a vacuum cleaner filter bag at a designated attachment point.
  • no additional material is introduced between the wall and the retaining plate.
  • the retaining plate is joined directly to the wall of the vacuum cleaner filter bag.
  • thermoplastic materials of the film melt more readily, i.e., at lower temperatures, than the thermoplastic materials of the mounting plate and/or have a lower viscosity at the same temperature.
  • This earlier melting and/or the lower viscosity of the melt of these materials results in improved wetting of the wall – in this case, the film – and the mounting plate, particularly in the case of a welded joint. This leads to a significantly improved bond between the mounting plate and the wall of the vacuum cleaner filter bag.
  • thermoplastic material for the film of the wall of the vacuum cleaner filter bag Polyolefins, in particular polypropylene or polyethylene, polyester or - in the event that the wall is formed as a film laminate at least at the point of attachment - thermoplastic polymers, in particular TPE or TPU, as the layer of this laminate facing the mounting plate, should be mentioned.
  • Materials used for the mounting plate include polyolefins such as polypropylene or polyethylene, or polyesters, especially PET.
  • thermoplastic elastomers such as TPE or TPU.
  • the film or film laminate it is also possible for the film or film laminate to be made of the same thermoplastics as the mounting plate or the wall. In this case, however, as described above, it is preferable for the thermoplastic material to have a lower melting point.
  • the thermoplastic material it is advantageous to use a PP grade for the film or film laminate that has a lower melting point and/or a higher melting point index (MFI) than the PP grades used for the mounting plate and wall.
  • MFI melting point index
  • thermoplastic elastomer such as, in particular, TPE-O, TPE-V, TPE-U, TPE-E, TPE-S, or TPE-A
  • a thermoplastic elastomer such as, in particular, TPE-O, TPE-V, TPE-U, TPE-E, TPE-S, or TPE-A
  • the thermoplastic elastomer can be applied to the respective surface, for example, in the form of bumps or concentric circles.
  • the retaining plate can also have a closing flap that protrudes through the bag inlet opening into the interior of the vacuum cleaner filter bag, allowing the bag inlet opening to be closed from the inside.
  • This flap can, for example, have a spring mechanism that enables the bag inlet opening to close automatically with the flap.
  • the present invention relates to a vacuum cleaner filter bag comprising a wall with an attachment point for a retaining plate, and a retaining plate connected to the wall at the attachment point in a material-bonded manner, which is connected to the wall at least partially via at least one, in particular exactly one, layer of a textile material.
  • the wall of the vacuum cleaner filter bag is formed from a film of a thermoplastic material, at least at the point where the mounting plate is attached.
  • the wall of the vacuum cleaner filter bag has a bag inlet opening in the area of the attachment point
  • the textile material has a passage opening
  • the retaining plate has an inlet opening, wherein the bag inlet opening, passage opening and inlet opening are aligned one above the other, in particular that the bag inlet opening and/or the passage opening are dimensioned in diameter smaller than or equal to the inlet opening.
  • At least one flat sealing element is inserted at the mounting location of the retaining plate on the inside of the wall of the vacuum cleaner filter bag, between the wall of the vacuum cleaner filter bag and the textile material and/or between the textile material and the retaining plate, which is preferably made of TPE or TPU and which has a passage opening that is aligned with the passage opening of the retaining plate, but has a smaller diameter than the diameter of the passage opening of the retaining plate.
  • the vacuum cleaner filter bags according to all embodiments can be manufactured from the walls described above, produced according to the invention, using manufacturing methods known from the prior art, e.g. as flat bags or as block bottom bags.
  • Figure 1 shows a first method according to the invention for producing a wall according to the invention, having an inlet opening, for a vacuum cleaner filter bag.
  • the first step which is described in Figure 2, the following steps are taken:
  • Figure 1a As shown in the figure, a wall 1 of a vacuum cleaner filter bag is provided.
  • the wall can be, for example, a non-woven material or a film.
  • Laminates made of nonwovens or films are also conceivable. These materials can, for example, be supplied from rolls and unwound continuously.
  • Figure 1a (as in all subsequent figures) only a small section of the material of wall 1 of the vacuum cleaner filter bag is shown.
  • Figure 1b shows the state after a textile material 2 has been applied to one side of the wall 1 of the vacuum cleaner filter bag by means of four separate individual weld points 3. The remaining surface of the textile material 2 is loose and not connected to the wall of the filter bag.
  • the textile material 2 can also be spot-glued to the wall 1 of the vacuum cleaner filter bag. It is also possible to bond the textile material 2 to the wall 1 of the vacuum cleaner filter bag over its entire surface, for example by welding or gluing.
  • FIG. 1c A common opening (bag inlet opening 4 in the textile material 2 and passage opening 4' in the textile material 2) is introduced.
  • This opening can be created, for example, by common punching, cutting or similar processes.
  • Figure 1d shows the state after a retaining plate 5 with an associated inlet opening 6 has been aligned with the common opening (4, 4') of the composite of the filter material wall 1 and the textile material 2. It can be seen that the through-opening 6 of the retaining plate 5 has a larger diameter than the common opening (4, 4') of the filter bag wall and the textile material. This protrusion, visible within the inlet opening of the retaining plate, acts as a seal for a vacuum cleaner nozzle inserted through the inlet opening 6 of the retaining plate 5.
  • the bond between the retaining plate 5 and the wall 1 of the vacuum cleaner filter bag via the textile material 2 is achieved, for example, by an ultrasonic welding process in which ultrasound is introduced into the retaining plate using a sonotrode and anvil.
  • the weld seam can be, for example, ring-shaped around the inlet opening 6 of the retaining plate 5.
  • the retaining plate 5 can be welded to the wall 1 of the vacuum cleaner filter bag only at specific points via the textile material 2. It is also possible to weld the entire surface of the retaining plate 5 to the wall 1 of the vacuum cleaner filter bag via the textile material 2.
  • the wall 1, the textile material 2 and the retaining plate 5 are made of thermoplastic materials.
  • Figure 2 shows a further embodiment for the production of a vacuum cleaner filter bag according to the invention.
  • the textile material 2 does not cover the bag inlet opening 4, which is located in Figure 2c ) is now simply inserted into the wall of the vacuum cleaner filter bag.
  • the retaining plate 5 When the retaining plate 5 is overlapped, and the inlet opening of the retaining plate 6 is aligned with the bag inlet opening 4, the retaining plate 5 only rests on the textile material 2 in certain areas. Finally, the retaining plate is bonded to the wall 1 of the vacuum cleaner filter bag by the textile material 2 (for example, by welding). Thus, only their area is reinforced by the presence of textile material 2. This is sufficient, for example, in the case of a known tensile load on the vacuum cleaner filter bag.
  • Figure 3 shows a further embodiment of a method according to the invention for producing a vacuum cleaner filter bag according to the invention.
  • Figure 3a is identical to Figure 1a ) or Figure 2a ).
  • the material of the vacuum cleaner filter bag's wall is made of non-woven fabric.
  • a recess A is now made in the wall 1 of the vacuum cleaner filter bag. This can be done, for example, by punching or cutting.
  • thermoplastic film F is now fixed to the wall 1 of the vacuum cleaner filter bag, covering the recess A, on the perspectively shown back side of the wall 1 of the vacuum cleaner filter bag, for example by welding or gluing.
  • a textile material 2 is fixed to the foil F, for example by means of four welding points 3.
  • the retaining plate 5 with the inlet opening 6 After the retaining plate 5 with the inlet opening 6 is applied, the retaining plate is fixed by the textile material 2 with the film F, which in this area forms the wall 1 of the vacuum cleaner filter bag.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (16)

  1. Procédé pour relier par liaison de matière une plaque de retenue (5) à la paroi (1) d'un sac filtrant d'aspirateur à un emplacement de fixation prévu à cet effet, dans lequel
    a) au moins par endroits, dans la zone de l'emplacement de fixation de la plaque de retenue (5), un assemblage (3) par liaison de matière, adhérence ou complémentarité de forme de la paroi (1) du sac filtrant d'aspirateur avec au moins une et en particulier exactement une couche d'un matériau textile (2) est réalisé, la plaque de retenue (5) est pressée contre le côté pourvu du matériau textile (2) de la paroi du sac filtrant d'aspirateur à l'emplacement de fixation, ou
    b) au moins par endroits, sur la plaque de retenue (5), un assemblage par liaison de matière, adhérence ou complémentarité de forme de la plaque de retenue (5) avec au moins une et en particulier exactement une couche d'un matériau textile (2) est réalisé, et la plaque de retenue (5) est pressée avec le côté pourvu du matériau textile (2) contre la paroi (1) du sac filtrant d'aspirateur à l'emplacement de fixation, ou
    c) au moins une et en particulier exactement une couche d'un matériau textile (2) est introduite entre la paroi (1) du sac filtrant d'aspirateur et la plaque de retenue (5) au moins par endroits dans la zone de l'emplacement de fixation de la plaque de retenue (5), la plaque de retenue (5) est pressée avec le matériau textile (2) contre la paroi (1) du sac filtrant d'aspirateur à l'emplacement de fixation.
    puis un assemblage par liaison de matière est réalisé entre la paroi (1) du sac filtrant d'aspirateur, le matériau textile (2) et la plaque de retenue (5).
  2. Procédé selon la revendication 1, caractérisé en ce que la paroi (1) du sac filtrant d'aspirateur comprend ou est constituée ou formée d'un matériau thermoplastique au moins dans la zone de l'emplacement de fixation de la plaque de retenue (5), le matériau textile (2) comprend ou est constitué ou formé de fibres thermoplastiques et/ou de filaments thermoplastiques, et/ou au moins la face de support de la plaque de retenue (5) comprend ou est entièrement constituée ou formée au moins par endroits d'un matériau thermoplastique ou l'ensemble de la plaque de retenue (5) est constitué ou formé d'un matériau thermoplastique.
  3. Procédé selon l'une des deux revendications précédentes, caractérisé en ce que le matériau thermoplastique de la paroi (1) du sac filtrant d'aspirateur, le matériau à partir duquel les fibres thermoplastiques et/ou les filaments thermoplastiques du matériau textile (2) sont formés et/ou le matériau thermoplastique de la plaque de retenue (5) sont choisis chacun indépendamment les uns des autres dans le groupe constitué par les polyoléfines, en particulier le polyéthylène, le polypropylène ou le polystyrène, les poly(méth)acrylates, les polyamides, les polyesters, en particulier le PET, le PBT, le PC ou le PLA, les élastomères thermoplastiques (TPE), en particulier les TPE-O, TPE-V, TPE-U, TPE-E, TPE-S ou TPE-A, les polybenzimidazoles, les polyé- thersulfones, les polyétheréthercétones, les polyétherimides, les oxydes de polyphénylène, les sulfures de polyphénylène et le polytétrafluoroéthylène, ainsi que des mélanges ou combinaisons de ceux-ci.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que le matériau textile (2) est choisi dans le groupe constitué par les non-tissés, les filets, les tissus tissés, les tissus maillés, les nappes, les tricots, les tresses, les tissus obtenus par couture-tricotage et les feutres, ainsi que des combinaisons de ceux-ci.
  5. Procédé selon la revendication précédente, caractérisé en ce que le non-tissé est choisi dans le groupe constitué par les non-tissés filés et les non-tissés cardés.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que le matériau textile (2) est plat et présente en particulier un grammage de 5 à 200 g/m2, de préférence de 10 à 100 g/m2, plus préférablement de 15 à 50 g/m2.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que la paroi (1) du sac filtrant d'aspirateur est formée, au moins à l'emplacement de fixation de la plaque de retenue (5), d'une feuille (F) en matériau thermoplastique, d'un stratifié de feuilles dans lequel au moins le côté sur lequel la plaque de retenue (5) est appliquée est constitué d'un matériau thermoplastique, ou d'un non-tissé constitué d'un matériau thermoplastique.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que
    a) la liaison au moins par endroits de la paroi (1) du sac filtrant d'aspirateur au matériau textile (2) par liaison de matière, adhérence ou complémentarité de forme,
    b) la liaison au moins par endroits de la plaque de retenue (5) au matériau textile (2) par liaison de matière, adhérence ou complémentarité de forme, et/ou
    c) la réalisation finale de l'assemblage par liaison de matière entre la paroi (1) du sac filtrant d'aspirateur, le matériau textile (2) et la plaque de retenue (5)
    s'effectue au moyen d'une opération de soudage, en particulier d'une opération de soudage par ultrasons ou d'une opération de collage, en particulier au moyen d'une colle liquide, d'une colle à deux composants ou d'une colle pouvant être liquéfiée thermiquement.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que
    la paroi (1) du sac filtrant d'aspirateur présente dans la zone de l'emplacement de fixation une ouverture d'entrée de sac (4), le matériau textile (2) une ouverture de passage (4) et la plaque de retenue (5) une ouverture d'entrée (6), dans lequel l'ouverture d'entrée de sac (4), l'ouverture de passage (4) et l'ouverture d'entrée (6) sont amenées à coïncider les unes avec les autres, ou une ouverture d'entrée de sac (4) est pratiquée dans la paroi (1) du sac filtrant d'aspirateur dans la zone de l'emplacement de fixation et/ou une ouverture de passage (4) est pratiquée dans le matériau textile (2), et l'ouverture d'entrée de sac (4), l'ouverture de passage (4) et l'ouverture d'entrée (6) de la plaque de retenue (5) sont amenées à coïncider les unes avec les autres.
  10. Procédé selon la revendication précédente, caractérisé en ce que le diamètre de l'ouverture d'entrée de sac (4) et/ou de l'ouverture de passage (4) est inférieur ou égal au diamètre de l'ouverture d'entrée (6).
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'à l'emplacement de fixation de la plaque de retenue (5), au moins un élément d'étanchéité plat est disposé sur la face intérieure de la paroi (1) du sac filtrant d'aspirateur, entre la paroi (1) du sac filtrant d'aspirateur et le matériau textile (2) et/ou entre le matériau textile (2) et la plaque de retenue (5), lequel élément d'étanchéité est de préférence constitué de TPE ou de TPU et présente une ouverture de passage qui coïncide avec l'ouverture de passage de la plaque de retenue (5) mais présente un diamètre inférieur au diamètre de l'ouverture de passage de la plaque de retenue (5).
  12. Procédé selon l'une des revendications précédentes, caractérisé en ce que
    la face de support de la plaque de retenue (5) est structurée au moins par endroits et/ou présente des capteurs de direction pour ultrasons, et/ou, dans le cas où la paroi (1) du sac filtrant d'aspirateur est réalisée sous la forme d'une feuille (F) ou d'un stratifié de feuilles au moins dans la zone de l'emplacement de fixation de la plaque de retenue (5), la feuille (F) ou le stratifié de feuilles est structuré(e) au moins à l'emplacement de fixation, en particulier structuré(e) en profondeur, par exemple moleté(e).
  13. Procédé pour relier par liaison de matière une plaque de retenue (5) à la paroi (1) d'un sac filtrant d'aspirateur à un emplacement de fixation prévu à cet effet, dans lequel
    a) au moins par endroits, dans la zone de l'emplacement de fixation de la plaque de retenue (5), un assemblage (3) par liaison de matière, adhérence ou complémentarité de forme de la paroi (1) du sac filtrant d'aspirateur avec au moins une et en particulier exactement une couche d'une feuille (F) en matériau thermoplastique est réalisé, la plaque de retenue (5) est pressée contre le côté pourvu de la feuille de la paroi du sac filtrant d'aspirateur à l'emplacement de fixation, ou
    b) au moins par endroits, sur la plaque de retenue (5), un assemblage par liaison de matière, adhérence ou complémentarité de forme de la plaque de retenue (5) avec au moins une et en particulier exactement une couche d'une feuille (F) en matériau thermoplastique est réalisé, et la plaque de retenue (5) est pressée avec le côté pourvu de la feuille (F) contre la paroi (1) du sac filtrant d'aspirateur à l'emplacement de fixation, ou
    c) au moins une et en particulier exactement une couche d'une feuille (F) en matériau thermoplastique est introduite entre la paroi (1) du sac filtrant d'aspirateur et la plaque de retenue (5) par endroits dans la zone de l'emplacement de fixation de la plaque de retenue (5), la plaque de retenue (5) est pressée avec la feuille contre la paroi (1) du sac filtrant d'aspirateur à l'emplacement de fixation.
    puis un assemblage par liaison de matière est réalisé entre la paroi (1) du sac filtrant d'aspirateur, la feuille (F) et la plaque de retenue (5).
  14. Sac filtrant d'aspirateur, comprenant une paroi (1) avec un emplacement de fixation pour une plaque de retenue (5), ainsi qu'une plaque de retenue (5) reliée à la paroi (1) par liaison de matière à l'emplacement de fixation, laquelle plaque de retenue est reliée à la paroi (1) au moins par endroits par une couche d'un matériau textile (2),
    dans lequel la paroi (1) du sac filtrant d'aspirateur est formée, au moins à l'emplacement de fixation de la plaque de retenue (5), d'une feuille (F) en matériau thermoplastique.
  15. Sac filtrant d'aspirateur selon la revendication 14, caractérisé en ce que la paroi (1) du sac filtrant d'aspirateur présente dans la zone de l'emplacement de fixation une ouverture d'entrée de sac (4), le matériau textile une ouverture de passage (4') et la plaque de retenue (5) une ouverture d'entrée (6), dans lequel l'ouverture d'entrée de sac (4), l'ouverture de passage (4') et l'ouverture d'entrée (6) sont amenées à coïncider les unes avec les autres, en particulier en ce que le diamètre de l'ouverture d'entrée de sac (4) et/ou de l'ouverture de passage (4') est inférieur ou égal au diamètre de l'ouverture d'entrée (6).
  16. Sac filtrant d'aspirateur selon l'une des revendications 14 à 15, caractérisé en ce qu'à l'emplacement de fixation de la plaque de retenue (5), au moins un élément d'étanchéité plat est disposé sur la face intérieure de la paroi (1) du sac filtrant d'aspirateur, entre la paroi (1) du sac filtrant d'aspirateur et le matériau textile (2) et/ou entre le matériau textile (2) et la plaque de retenue (5), lequel élément d'étanchéité est de préférence constitué de TPE ou de TPU et présente une ouverture de passage qui coïncide avec l'ouverture de passage (6) de la plaque de retenue (5) mais présente un diamètre inférieur au diamètre de l'ouverture de passage (6) de la plaque de retenue (5).
EP15199696.4A 2015-12-12 2015-12-12 Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur Active EP3178360B2 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
EP15199696.4A EP3178360B2 (fr) 2015-12-12 2015-12-12 Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur
ES15199696T ES2916748T3 (es) 2015-12-12 2015-12-12 Procedimiento para producir una unión por material entre una placa de retención y la pared de una bolsa de filtro de aspiradora, así como bolsa de filtro de aspiradora
PL16809066.0T PL3386363T3 (pl) 2015-12-12 2016-12-12 Sposób łączenia połączeniem spajanym płytki mocującej ze ścianką worka filtracyjnego i worek filtracyjny do odkurzacza
CN201680081239.3A CN108697286B (zh) 2015-12-12 2016-12-12 用于将吸尘器过滤袋的保持板与壁部材料接合地连接的方法以及吸尘器过滤袋
ES16809066T ES2972226T3 (es) 2015-12-12 2016-12-12 Procedimiento para conectar por unión de materiales una placa de sujeción a la pared de una bolsa de filtro de aspiradora y bolsa de filtro de aspiradora
DK16809066.0T DK3386363T3 (da) 2015-12-12 2016-12-12 Fremgangsmåde til at forbinde en holdeplade materialesluttende til væggen af en støvsugerfilterpose samt støvsugerfilterpose
US16/060,746 US10925450B2 (en) 2015-12-12 2016-12-12 Method for integral connection of a retaining plate to the wall of a vacuum cleaner filter bag and also vacuum cleaner filter bag
EP16809066.0A EP3386363B1 (fr) 2015-12-12 2016-12-12 Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur
PCT/EP2016/080568 WO2017098035A1 (fr) 2015-12-12 2016-12-12 Procédé pour effectuer une liaison de matière entre une plaque de retenue et la paroi d'un sac filtrant d'aspirateur et sac filtrant d'aspirateur
AU2016366505A AU2016366505B2 (en) 2015-12-12 2016-12-12 Method for integrally connecting a retaining plate to the wall of a vacuum-cleaner filter bag, and vacuum-cleaner filter bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15199696.4A EP3178360B2 (fr) 2015-12-12 2015-12-12 Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur

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EP3178360A1 EP3178360A1 (fr) 2017-06-14
EP3178360B1 EP3178360B1 (fr) 2022-03-16
EP3178360B2 true EP3178360B2 (fr) 2025-12-03

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EP16809066.0A Active EP3386363B1 (fr) 2015-12-12 2016-12-12 Procede de liaison interposee d'une plaque de support et d'une paroi d'un sac d'aspirateur et sac d'aspirateur

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US (1) US10925450B2 (fr)
EP (2) EP3178360B2 (fr)
CN (1) CN108697286B (fr)
AU (1) AU2016366505B2 (fr)
DK (1) DK3386363T3 (fr)
ES (2) ES2916748T3 (fr)
PL (1) PL3386363T3 (fr)
WO (1) WO2017098035A1 (fr)

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DK3530171T3 (da) 2018-02-23 2021-06-14 Eurofilters Holding Nv Holdeplade med tætningselement
DE202018102370U1 (de) 2018-04-27 2018-05-04 Eurofilters Holding N.V. Staubsaugerfilterbeutel mit Folie im Bereich der Halteplatte
DK3560402T3 (da) * 2018-04-27 2023-01-09 Eurofilters Holding Nv Støvsugerfilterpose med folie i holdepladens område
DK3669734T3 (da) * 2018-12-17 2021-04-12 Eurofilters Holding Nv Støvsugerfilterpose med forbedret svejsesømstyrke
DK3821776T3 (da) * 2019-11-12 2025-02-03 Eurofilters Holding Nv Støvsugerfilterpose til håndstøvsuger
PL3821777T3 (pl) * 2019-11-12 2025-04-14 Eurofilters Holding N.V. Worek filtrujący do odkurzacza ręcznego

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AU2016366505A1 (en) 2018-06-28
EP3386363A1 (fr) 2018-10-17
WO2017098035A1 (fr) 2017-06-15
CN108697286A (zh) 2018-10-23
EP3386363B1 (fr) 2024-01-31
CN108697286B (zh) 2021-05-18
US20180368635A1 (en) 2018-12-27
PL3386363T3 (pl) 2024-08-05
US10925450B2 (en) 2021-02-23
ES2916748T3 (es) 2022-07-05
EP3178360B1 (fr) 2022-03-16
ES2972226T3 (es) 2024-06-11
DK3386363T3 (da) 2024-02-19
AU2016366505B2 (en) 2022-07-14
EP3178360A1 (fr) 2017-06-14

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