EP3338610A1 - Plaque de retenue pour sac d'aspirateur ayant un joint d'étanchéité - Google Patents

Plaque de retenue pour sac d'aspirateur ayant un joint d'étanchéité Download PDF

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Publication number
EP3338610A1
EP3338610A1 EP16206569.2A EP16206569A EP3338610A1 EP 3338610 A1 EP3338610 A1 EP 3338610A1 EP 16206569 A EP16206569 A EP 16206569A EP 3338610 A1 EP3338610 A1 EP 3338610A1
Authority
EP
European Patent Office
Prior art keywords
sealing membrane
thickening
passage opening
holding plate
slot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16206569.2A
Other languages
German (de)
English (en)
Other versions
EP3338610B1 (fr
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
Priority to EP16206569.2A priority Critical patent/EP3338610B1/fr
Application filed by Eurofilters Holding NV filed Critical Eurofilters Holding NV
Priority to DK16206569.2T priority patent/DK3338610T3/da
Priority to ES16206569T priority patent/ES2785907T3/es
Priority to PL16206569T priority patent/PL3338610T3/pl
Priority to US16/472,614 priority patent/US20200390305A1/en
Priority to RU2019117265A priority patent/RU2714951C1/ru
Priority to CN201780078687.2A priority patent/CN110087519B/zh
Priority to AU2017381004A priority patent/AU2017381004B2/en
Priority to PCT/EP2017/084066 priority patent/WO2018115269A1/fr
Publication of EP3338610A1 publication Critical patent/EP3338610A1/fr
Application granted granted Critical
Publication of EP3338610B1 publication Critical patent/EP3338610B1/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
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures
    • A47L9/1445—Connecting plates, e.g. collars, end closures with closure means
    • A47L9/1454—Self-sealing closures, e.g. valves
    • 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 holding plate for a vacuum cleaner filter bag.
  • Conventional vacuum cleaner filter bags regularly comprise a holding plate, which is connected to the filter material of the bag in the region of the bag inlet opening.
  • the holding plate serves to attach the vacuum cleaner filter bag in the dust collection chamber of a vacuum cleaner, where the holding plate is inserted, for example, in a holder provided there and fixed in this way.
  • the holding plate has a passage opening aligned with the inlet opening in the bag wall, through which an aspirated air stream enters the vacuum cleaner filter bag during operation.
  • a connecting piece of the vacuum cleaner is inserted into the passage opening of the holding plate, so that in this way the sucked air flow can enter the vacuum cleaner filter bag, where the entrained with the air flow dust is deposited.
  • the passage opening of the holding plate may have an annular seal made of an elastic material.
  • seals are for example from the DE 10 2010 060 353 . DE 10 2007 062 028 . DE 10 2008 041 227 . EP 2 044 874 or DE 102 03 460 known.
  • sealing elements are further described, which can close the passage opening of the holding plate, for example, when the vacuum cleaner filter bag is removed from the vacuum cleaner.
  • Corresponding teachings can be found, inter alia, in the DE 20 2014 100 563 . FR 2,721,188 . DE 10 2007 057 170 , the DE9016893 . DE8811821 and the USD 600,868 ,
  • Closure devices for the openings of retaining plates are also in the DE 20 2013 001 096 .
  • DE 20 2013 100 862 .
  • DE 10 2011 008 117 . DE 20 2015 101 218 and EP 1 480 545
  • the object underlying the invention is to provide a holding plate for a vacuum cleaner filter bag, which is easy to manufacture is and provides a reliable closure function for the passage opening. This object is solved by the subject matter of claim 1.
  • the sealing membrane covers the passage opening, the passage opening of the holding plate is closed in this way in a prefabricated vacuum cleaner filter bag - for example, in the removed state of the vacuum cleaner filter bag.
  • the nozzle of the vacuum cleaner dips into the passage opening, whereby it (by mechanical means) is opened.
  • the sealing membrane is opened due to the slot and stretched at least partially. This creates not only an inlet opening for a sucked air flow, but also a sealing effect between the connecting piece and the retaining plate.
  • the sealing diaphragm takes back its original shape because of the elastic plastic, so returns to its original position or rest position, so that the passage opening is closed.
  • the passage opening may be substantially circular.
  • the thickening along the slot leads to an advantageous stabilization of the sealing membrane in the region of the slot and increases the restoring force. In this way, the sealing membrane takes after removing or removing the nozzle in a reliable manner again their rest position and thus closes securely the passage opening. In the area of thickening, the sealing membrane has a greater thickness or a greater weight per unit area than in the remaining areas of the sealing membrane.
  • the thickening may be provided along the slot in sections, ie along individual (separate) sections, or over substantially the entire length of the slot.
  • the Sealing membrane may have at least partially a thickening only on one side or on both sides of the slot.
  • the thickening may be in the form of a bead.
  • the thickening is thus formed as a thickening of the plastic material as such.
  • the sealing membrane with the thickenings is formed integrally and continuously from the same material; the thickening is part of the sealing membrane.
  • the thickening leads to an increase in the sealing membrane in this area.
  • the sealing membrane can be designed in one layer. In this way, the sealing membrane can be produced with little effort and at low cost.
  • the sealing membrane may have two or more slots, wherein the sealing membrane along one, more or all slots in sections or over substantially the entire length has a thickening -as previously described.
  • the thickenings along two or more slots may be the same or different. With multiple slots, each slot may have the characteristics described independently of the remaining slots.
  • the provision of two or more slots simplifies the opening of the sealing membrane and results in a more reliable return to the home position when the connector is removed.
  • the sealing membrane is not overly stretched in any area at multiple slots, resulting in less stress on the material.
  • the arrangement of the slots may be substantially T-shaped, cross-shaped or star-shaped.
  • the point of intersection of two intersecting slots may be located at most 90%, preferably at most 80%, of the radius of the sealing membrane remote from the center of the sealing membrane.
  • the point of intersection may in particular be in the center of the sealing membrane.
  • Each slot may be straight or curved. If there are several slots, these may have the same or different shape and / or dimensioning.
  • Each slot may have a length of at least 50%, in particular at least 75% of the diameter of the passage opening.
  • the slots can, but need not be perpendicular to each other. You can take an angle of at least 45 °, preferably at least 70 ° at the intersection. This is especially true in arrangements in which slots have a T-shaped, cross-shaped or star-shaped arrangement.
  • One, several or all of the slots may have a widening at one or both ends.
  • This broadening may have a rounded shape, for example a circular shape. By such broadening the risk of tearing of the sealing membrane is reduced at the slot ends.
  • the broadening may have a maximum diameter of not more than 8 mm, in particular not more than 6 mm, especially not more than 4 mm.
  • the respective thickenings may be formed as described.
  • the thickening may also be provided partially or completely along one, several or all widenings at the end of the slots.
  • the sealing membrane may have a Shore A hardness of 30 to 85. This allows a reliable sealing of the nozzle, without an excessive force during insertion and removal of the nozzle is required.
  • the elastic plastic of the sealing membrane may be a thermoplastic (TPE) or liquid silicone rubber (LSR). These materials show a particularly advantageous recovery behavior. Thus, when the connecting piece is removed from the passage opening, the sealing membrane in these materials takes on its original shape in a particularly advantageous manner again; the stretched areas rejoin and return to their original position.
  • thermoplastic elastomer is used according to the standard DIN EN ISO 18064: 2014 and includes in particular TPA, TPC, TPO, TPS, TPU, TPV and TPZ.
  • the sealing membrane may be an injection molded part.
  • An injection-molded sealing membrane can be produced in a simple, cost-effective and reliable manner.
  • the sealing membrane may have a corrugated area.
  • a wave structure reduces the risk of overstretching of the material in use, that is, when a connecting piece is inserted into the passage opening.
  • the wavy areas go into a flat state, so that the actual material expansion takes place only in a subsequent stage. This reduces the risk of exceeding the elastic limit.
  • the corrugated areas may be formed in particular in the circumferential direction along the edge of the passage opening of the base plate; they can be formed parallel to the edge. These areas are regularly stretched the most when inserting the connection piece. In such a configuration adjacent wave peaks or valleys follow each other in the circumferential direction (parallel to the edge of the passage opening).
  • the sealing membrane can be curved, in particular in the radial direction.
  • the sealing membrane is not in its initial position in a plane parallel to the plane of the passage opening in the base plate. Instead, it may be curved perpendicular to the plane of the passage opening (for example, in the direction of the passage opening or in the opposite direction, or in the direction of the bag interior or in the direction away from the bag).
  • the sealing membrane may have a curvature. The extremum (the highest or lowest point) of the sealing membrane can lie in particular in the center (the passage opening). Such curvature of the sealing membrane results in easier and more reliable sealing when the spud is removed.
  • the sealing membrane may have a uniform thickness outside the thickening, that is in the non-thickened areas. In other words, then the Abdichtmembran except the areas with the thickening everywhere the same thickness. This thickness of the non-thickened regions can be determined, for example, at the edge of the passage opening.
  • the thickness of the sealing membrane may be at least 0.10 mm, preferably 0.30 mm, and / or at most 1.0 mm, preferably at most 0.60 mm. These thicknesses refer to the non-thickened areas. The thickness is determined according to the standard DIN 53370: 2006-11, point 4.1.2, method P (spherical cap R30, contact pressure 0.1 N).
  • the thickness of the sealing membrane may be increased by at least 20% in the region of the thickening, preferably by at least 50% (with respect to the remaining, non-thickened regions). This leads to an advantageous stabilization and provision of a sufficient restoring force.
  • the thickening may have a height of 0.1-0.4 mm, starting from the surface of the sealing membrane.
  • the thickness of the sealing membrane may be at least 0.11 mm, in particular at least 0.40 mm, and / or at most 1.20 mm, in particular at most 0.70 mm in the region of the thickening.
  • a sealing membrane is provided which allows both a sealing of the connecting piece with respect to the base plate and a secure closing.
  • the thickening may be formed only to one side of the sealing membrane or to both sides of the sealing membrane. If the thickening is formed only to one side, the sealing membrane has a flat surface on the opposite side; only on the side with the thickening, the sealing membrane on an increase or a bead.
  • the thickening has an elongated shape (ie longer than wide) or line shape and extends in sections or completely parallel to the slot, in particular also parallel to a widening at the end of a slot.
  • the thickening may be formed in a region along the slit having a width of at most 5 mm, in particular at most 3 mm.
  • the area along the slot can be directly adjacent to the slot, that is bounded by an edge of the slot.
  • the thickening itself may have a width of at least 0.10 mm, preferably at least 0.20 mm, and / or at most 0.40 mm, preferably at most 0.30 mm.
  • the width of the thickening refers to the width of the area in which the thickness of the sealing membrane has a greater thickness than in the remaining, non-thickened areas (for example at the edge of the passage opening); What is meant is the width of the bead.
  • the thickening may have a constant or variable thickness along the slot.
  • the constant or variable thickness can be chosen in particular depending on the geometry and / or position of the slot. For example, the thickness in the middle of a slot may be maximum and decrease toward the two ends.
  • the sealing membrane may be welded to the base plate or molded onto it. This enables a secure connection even under load during operation. In addition, can be produced in this way, the holding plate in a simple and cost-effective manner.
  • a vacuum cleaner filter bag comprising one of the holding plates described above is provided.
  • the sealing membrane is connected to the bag wall. It can be arranged on the outside or inside the bag.
  • the vacuum cleaner filter bag may in particular comprise a single or multi-layer bag wall made of filter material.
  • the filter material may in particular be nonwoven fabric.
  • the vacuum cleaner filter bag may be a flat bag or have a block bottom shape.
  • a flat bag is formed by two side walls of filter material joined together (e.g., welded or glued) along their peripheral edges. In one of the two side walls, the bag filling opening or inlet opening can be provided.
  • the side surfaces or walls can each have a rectangular basic shape. Each sidewall may comprise one or more layers of nonwoven and / or nonwoven fabric.
  • the holding plate may be welded to the bag wall of the vacuum cleaner filter bag.
  • FIG. 1 schematically illustrates a plan view of a holding plate 1, which comprises a base plate 2 made of plastic, for example polypropylene (PP) or polyethylene terephthalate (PET), in particular recycled PET (rPET).
  • PP polypropylene
  • PET polyethylene terephthalate
  • rPET recycled PET
  • this holding plate 1 is inserted (as part of a vacuum cleaner filter bag) in a holder inside a dust collecting space of a vacuum cleaner to support in this way a vacuum cleaner filter bag.
  • a passage opening 3 is formed, which is completely covered by a sealing membrane 4; in particular, no central opening is provided for a connecting piece.
  • the sealing membrane is single-layered and consists of a thermoplastic elastomer (TPE) or liquid silicone rubber (LSR).
  • the sealing membrane 4 has two slots 5 in the region of the passage opening 3.
  • the two slots intersect in a T-shaped configuration.
  • one of the two slots is substantially perpendicular to the other slot.
  • they widen a little, forming (small) circular holes, preventing tearing of the sealing membrane at the ends of the slots.
  • These holes have a diameter in a range of 1 - 8 mm.
  • the slots can also be at an angle other than 90 ° to each other, for example at an angle of 45 °.
  • One of the two slots or both slots may be curved, for example, have a U-shape or a waveform.
  • the opposing edges of a slot abut each other, so that the passage opening 3 is closed by the sealing membrane.
  • a connecting piece of a vacuum cleaner is inserted into the passage opening 3, whereby the sealing membrane 4 down (inside the vacuum cleaner filter bag) deflected and the slots are widened.
  • the connection piece can be provided for example in the cover of the vacuum cleaner and immerse when closing the lid in the passage opening.
  • the sealing membrane opens in the passage opening, the sealing membrane surrounding the connecting piece surrounding it. During the deflection of the sealing membrane, this is stretched in particular in the edge region along the circumference of the passage opening 3.
  • the sealing membrane has thickenings 6. These thickenings 6 are elongated or linear and extend along and parallel to the corresponding slot 5. Three of the thickenings are substantially straight. Furthermore is also parallel to each of the widenings at the end of the slots each still a (curved) thickening 6 is provided, whereby the risk of tearing at these points is further reduced.
  • the sealing membrane 4 basically has a uniform thickness over a whole area in a range of 0.1 mm to 0.8 mm. This thickness can be measured, for example, in the edge region of the passage opening 3, in particular directly on the edge of the passage opening. In the area of the thickenings 6, the thickness increases, so that a bead is formed. This bead has a height of 0.1 - 0.4 mm, starting from the surface of the sealing membrane 4. Thus, the maximum thickness of the sealing membrane in the thickening is in a range of 0.2 to 1.2 mm.
  • the linear thickening strengthens the sealing membrane in this area. Due to the reinforcement, the sealing membrane is stabilized and has an increased restoring force in these areas. For this reason, the sealing membrane returns after pulling out of the connecting piece in a reliable manner back to its rest position, in which the passage opening 3 is closed. Thus, when the lid of the vacuum cleaner is opened and thus the connecting piece comes out of the passage opening, the vacuum cleaner bag closes and can be disposed of in a hygienic manner.
  • the vertical slot on both sides ie left and right on a thickening.
  • a thickening on one side is provided.
  • thickenings are arranged at three slot ends. Alternative training is also possible. All thickenings are on the same side of the sealing membrane.
  • the thickenings can have a constant thickness / height or a variable height over their entire length.
  • FIG. 2 is a schematic cross-sectional view of a holding plate 1, which comprises a base plate 2 with a passage opening 3 and a sealing membrane 4 covering the passage opening 3.
  • the holding plate 1 is welded to the bag wall 7 of a vacuum cleaner filter bag.
  • the bag wall 7 comprises one or more layers of a nonwoven fabric.
  • the base plate 2, the sealing membrane 4 and the bag wall 7 are welded together.
  • the holding plate is typically welded at first positions to the bag wall; the sealing membrane is welded at other, second positions with the retaining plate and / or the bag wall.
  • the sealing membrane 4 is arranged between the base plate 2 and the bag wall 7.
  • the sealing membrane may also be provided on the side of the base plate facing away from the bag wall.
  • the sealing membrane can also be fastened to the bag wall inside the bag (for example, welded).
  • the sealing membrane can be connected either first to the base plate of the holding plate; Thereafter, this holding plate is connected to the bag wall.
  • this holding plate is connected to the bag wall.
  • the sealing membrane inside or outside the bag
  • the base plate is connected to the bag wall.
  • both thickenings are formed only to one side of the sealing membrane 4, namely upwards.
  • the thickenings may also be formed on the other side or on both sides.
  • the sealing membrane is in its rest or initial position in a plane parallel to the passage opening 3. After pulling out a connecting piece, she will return to this original shape again.
  • FIG. 3 shows an alternative embodiment in which the sealing membrane 4 is formed curved in its rest position in the radial direction. This means that it is curved in the example shown in the direction of the passage opening 3. In an area around the center of the passage opening, through which the slot 5 extends, the curvature is convex (in plan view of the passage opening from the outside). In this embodiment, the bead-shaped thickenings 6 are formed on the side facing away from the passage opening of the sealing membrane 4, ie point in the direction of the bag interior.
  • FIG. 4 shows a schematic plan view of an embodiment of a holding plate 1, in which two cross-shaped slots 5 are provided in the sealing membrane. Along these slots 5 thickenings 6 are provided in sections. These thickenings do not extend uninterruptedly over the entire length of the respective slot, they are rather separated.
  • the sealing membrane 4 has four corrugated areas 8.
  • the wave structure is formed in the circumferential direction, as in a similar manner, for example in the DE 86 22 890 is shown.
  • areas 8 the sealing membrane 4 is thus similar to a crepe paper or corrugated board.
  • the corrugated structure provides additional material for the sealing membrane 4 in these areas.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Packages (AREA)
EP16206569.2A 2016-12-23 2016-12-23 Plaque de retenue pour sac d'aspirateur ayant un joint d'étanchéité Active EP3338610B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK16206569.2T DK3338610T3 (da) 2016-12-23 2016-12-23 Holdeplade til en støvsugerpose med tætning
ES16206569T ES2785907T3 (es) 2016-12-23 2016-12-23 Placa de retención para una bolsa de aspiradora con una junta de estanqueidad
PL16206569T PL3338610T3 (pl) 2016-12-23 2016-12-23 Płyta mocująca z uszczelnieniem dla worka do odkurzacza
EP16206569.2A EP3338610B1 (fr) 2016-12-23 2016-12-23 Plaque de retenue pour sac d'aspirateur ayant un joint d'étanchéité
US16/472,614 US20200390305A1 (en) 2016-12-23 2017-12-21 Retainer Panel for a Vacuum Cleaner Bag, with Seal
RU2019117265A RU2714951C1 (ru) 2016-12-23 2017-12-21 Удерживающая пластина для мешка пылесоса с уплотнением
CN201780078687.2A CN110087519B (zh) 2016-12-23 2017-12-21 具有密封件的用于真空清洁器袋的保持板
AU2017381004A AU2017381004B2 (en) 2016-12-23 2017-12-21 Retainer panel for a vacuum cleaner bag, with seal
PCT/EP2017/084066 WO2018115269A1 (fr) 2016-12-23 2017-12-21 Plaque de retenue pour sac à poussière pour aspirateur, pourvue d'un élément d'étanchéité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16206569.2A EP3338610B1 (fr) 2016-12-23 2016-12-23 Plaque de retenue pour sac d'aspirateur ayant un joint d'étanchéité

Publications (2)

Publication Number Publication Date
EP3338610A1 true EP3338610A1 (fr) 2018-06-27
EP3338610B1 EP3338610B1 (fr) 2020-02-12

Family

ID=57590427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16206569.2A Active EP3338610B1 (fr) 2016-12-23 2016-12-23 Plaque de retenue pour sac d'aspirateur ayant un joint d'étanchéité

Country Status (9)

Country Link
US (1) US20200390305A1 (fr)
EP (1) EP3338610B1 (fr)
CN (1) CN110087519B (fr)
AU (1) AU2017381004B2 (fr)
DK (1) DK3338610T3 (fr)
ES (1) ES2785907T3 (fr)
PL (1) PL3338610T3 (fr)
RU (1) RU2714951C1 (fr)
WO (1) WO2018115269A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3357392B1 (fr) 2017-02-07 2021-09-08 Eurofilters Holding N.V. Plaque support pour un sac filtrant d'aspirateur comprenant un dispositif de fermeture
DK3530171T3 (da) 2018-02-23 2021-06-14 Eurofilters Holding Nv Holdeplade med tætningselement
EP3530170B1 (fr) * 2018-02-23 2020-05-13 Eurofilters Holding N.V. Plaque de support dotée du dispositif de centrage

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AU2017381004B2 (en) 2020-07-02
PL3338610T3 (pl) 2020-07-27
US20200390305A1 (en) 2020-12-17
ES2785907T3 (es) 2020-10-08
CN110087519B (zh) 2022-09-16
DK3338610T3 (da) 2020-04-20
AU2017381004A1 (en) 2019-07-11
CN110087519A (zh) 2019-08-02
RU2714951C1 (ru) 2020-02-21
WO2018115269A1 (fr) 2018-06-28

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