EP2489292A1 - Sac d'aspirateur - Google Patents

Sac d'aspirateur Download PDF

Info

Publication number
EP2489292A1
EP2489292A1 EP12154173A EP12154173A EP2489292A1 EP 2489292 A1 EP2489292 A1 EP 2489292A1 EP 12154173 A EP12154173 A EP 12154173A EP 12154173 A EP12154173 A EP 12154173A EP 2489292 A1 EP2489292 A1 EP 2489292A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
cleaner bag
tubular structure
bag according
wall
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
EP12154173A
Other languages
German (de)
English (en)
Other versions
EP2489292B1 (fr
Inventor
Wolfgang Dr. Czado
Bernhard Dr. Linnemann
Johann Löwen
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.)
Wolf PVG GmbH and Co KG
Original Assignee
Wolf PVG GmbH and Co KG
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 Wolf PVG GmbH and Co KG filed Critical Wolf PVG GmbH and Co KG
Publication of EP2489292A1 publication Critical patent/EP2489292A1/fr
Application granted granted Critical
Publication of EP2489292B1 publication Critical patent/EP2489292B1/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

Definitions

  • the present invention relates to a vacuum cleaner bag having an outer wall of filter material, in which an inflow opening is formed.
  • the US 3,370,405 discloses a vacuum cleaner bag in which a partition wall is glued on opposite longitudinal sides with an outer wall of the vacuum cleaner bag.
  • the interior of the vacuum cleaner bag is divided into two chambers, which are at least partially flowed through successively.
  • both chambers are surrounded by the outer wall of the vacuum cleaner bag, so that only a limited division into a pre-filter and a downstream filter is made and therefore the partition does not significantly increase the life of the vacuum cleaner bag.
  • the DE 20 2006 016 3030 discloses a vacuum cleaner bag, wherein in the interior of the bag, a further bag is arranged, the bag opening is arranged around the inflow opening of the vacuum cleaner bag. This makes it possible that the inflowing air is first prefiltered in the smaller bag and then carried out a post-filtering through the outer wall of the vacuum cleaner bag.
  • the inner bag has a relatively small volume and is therefore filled quickly.
  • such a bag is difficult to incorporate manufacturing technology in the vacuum cleaner bag and also the production of the inner bag is expensive. If the inner bag is not flowed through evenly, it can also cause problems in the deployment of the vacuum cleaner bag for operation,
  • a tubular structure of air-permeable material is arranged in the vacuum cleaner bag, which in a middle region has a passage opening opposite to the through-opening.
  • the air entering through the inflow opening enters through the passage opening and thus into the tubular structure in which prefiltration can take place, the incoming air being divided by the shape of the tubular structure into two partial flows.
  • the tubular structure of the air flow can be prefiltered, so that the exiting through the tubular structure containing air only a portion of the dust, especially smaller particles.
  • the prefiltered residual dust can then be filtered through the outer wall of the vacuum cleaner bag, with a blockage of the outer wall of the vacuum cleaner bag occurs only much later, since a large part of the dust already stuck in the tubular structure.
  • the tubular structure is at least partially fixed to the outer wall.
  • the tubular structure preferably fills only a part of the internal volume of the vacuum cleaner bag, in particular between 10% to 50%, for example 15% to 30%. This ensures that the tubular structure has a certain distance from the outer wall of the filter material and thus an effective filtration in two chambers is made possible.
  • the tubular structure In the inflated state of the vacuum cleaner bag, the tubular structure is preferably over at least 60%, in particular at least 80% of its Peripheral surface spaced from the outer wall of the vacuum cleaner bag arranged. This ensures that the air flows through first the wall of the tubular structure and then the outer wall of the vacuum cleaner bag.
  • the tubular structure may be closed on at least one side.
  • the tubular structure is closed on opposite sides and fixed, for example, at a seam on the outer wall.
  • the tubular structure can extend substantially over the entire length of the vacuum cleaner bag, so that a web or tubular supply during manufacture is possible.
  • the passage opening is surrounded by an edge which is stiffer than the remaining material of the tubular structure. This prevents that even at high speeds, the passage opening is damaged at the edge, for example, by cracks or by deformation.
  • the stiffer formation of the edge can be done by solidification of a web or by other means.
  • the tubular structure is preferably made of a material with greater air permeability than the outer wall.
  • the tubular structure may be made of a nonwoven, in particular a carded web. But other materials, such as fabric, a perforated foil, paper, cardboard, mesh, nets or combinations of these materials can be used.
  • the air permeability of the tubular formed is preferably more than 600 l / m 2 s, in particular more than 1000 l / m 2 s.
  • the tubular structure is fixed at least at one point on an inner wall partially folded to reduce the diameter.
  • the fold can be formed in that the tubular structure is held together at the edge on an inner wall by an adhesive or weld seam and thus a swelling of the tubular structure in this area is possible only to a reduced extent.
  • the shape of the tubular structure can be adapted, for example, because a chamber of a vacuum cleaner is made shallower in a certain area, then the functionality of the tubular structure can also be maintained in this area.
  • the passage opening is held by a holding means adjacent to the inflow opening.
  • a holding means an adhesive or weld, but also a piece of material may be used, for example, the piece of material that is formed during the punching of the through hole, which may remain at least partially connected to the tubular structure. Then this piece of material can be used to fix the tubular structure spaced from the outer wall.
  • the holding means can form a predetermined breaking point, which is separated when a breaking force is exceeded, because when the tubular structure is filled and thus exert no pre-filter function more can, it is advantageous if the tubular structure is released from the fixed position and placed in the interior of the vacuum cleaner bag, because then the incoming air can be filtered directly through the outer wall of the vacuum cleaner bag until the vacuum cleaner bag is completely filled.
  • the breaking force for the predetermined breaking point can be in a range between 2 to 20 N, in particular 5 to 10 N.
  • the tubular structure is preferably connected to the outer wall at least via an adhesive or welding strip aligned in the longitudinal direction of the tubular structure.
  • at least one adhesive or welding strip can be provided on opposite sides of the passage opening in order to fix the passage opening relative to the inlet opening.
  • a vacuum cleaner bag 1 has an upper layer 2 of filter material, in which an inflow opening 3 is recessed, which is surrounded by a holding plate 4. In the inflow opening 3, a nozzle of a vacuum cleaner can be inserted.
  • the upper layer 2 is peripherally welded circumferentially with a lower layer 7 of filter material, so that a circumferential weld 5 is formed.
  • 1 gussets 6 are formed on two opposite sides of the vacuum cleaner bag, which is fixed on one side to the weld 5.
  • a four-layer region is formed by the inwardly folded upper layer 2 and the inwardly folded lower layer 7 in an end section 60 at the weld seam 5. It is of course also possible to form the gusset 6 merely by folding without fixation on a weld 5 or to fix the gusset 6 at both ends by a four-day section 60 and welding this section 60.
  • the filter material of the upper layer 2 and the lower layer 7 preferably consists of a multilayer nonwoven fabric which has at least one fine filter layer, for example a layer of meltblown.
  • the vacuum cleaner bag 1 comprises between the upper layer 2 and the lower layer 7, which form the outer wall of the vacuum cleaner bag 1, a tubular structure 8.
  • the tubular structure 8 consists of air-permeable material, in particular an air-permeable nonwoven, for example a carded web can but also be made of an air-permeable film or other material that is suitable for pre-filtering the incoming air.
  • the tubular Structure 8 is made of a web which has been stacked with the opposite edges and glued or welded, so that in the longitudinal direction of the tubular structure 8 formed longitudinal seam 9 is provided.
  • the tubular structure 8 forms an inner chamber 20, which is separated from the tubular structure 8 from an inner space 21 of the vacuum cleaner bag 1. It is of course possible to provide in the tubular structure 8 one or more outlet openings in order to reduce the flow resistance of the tubular structure 8.
  • FIG. 3 is the vacuum cleaner bag 1 without the upper layer of filter material 2 shown. It is only to see the lower layer 7 of filter material on which the tubular structure 8 is placed. Incidentally, however, the tubular structure 8 is not connected to the lower layer 7.
  • the tubular structure 8 comprises a passage opening 12 which is surrounded by a rim 13 which is made stiffer than the remaining material of the tubular structure 8.
  • the stiffening or reinforcement of the edge 13 can be achieved by solidifying the nonwoven material by applying an adhesive to the Edge 13 or by welding. This prevents that the edge 13 of the through hole 12 is damaged at high air velocities.
  • the distance of the passage opening 12 from the ends of the tubular structure 8 at the weld seam 5 is preferably more than 20%, in particular more than 30% of the length of the vacuum cleaner bag.
  • connection points 14 in which the inner wall of the tubular structure 8 is fixed to each other. This will change the diameter of the tubular Figure 8 reduced in this area.
  • the width of the connection points 14 can be selected depending on the purpose to reduce the bulging of the tubular structure 8 in a certain area. In the illustrated example, in each case a connection point 14 for reducing the diameter is provided on opposite sides of the tubular structure 8. It is also possible to provide a plurality of connection points 14 over the length of the tubular structure 8. As a result, instead of a circular cross-sectional geometry of the tubular structure 8, a substantially oval geometry of the tubular structure 8 can be obtained.
  • the tubular structure 8 is closed on opposite sides.
  • the tubular structure 8 has the same length as the layer 7 of filter material and the tubular structure 8 is welded together at opposite ends 10, preferably together with the seam 5 of the vacuum cleaner bag 1. Then the seam 5 in the area with the tubular structure 8 four-ply educated.
  • a tubular structure 8 is first placed in web form on a lower layer 7 of filter material, which is also web-shaped.
  • the passage opening 12 is already recessed and the edge 13 solidifies.
  • the upper layer 2 of filter material is supplied in web form and fixed via adhesive seams 11 or welds 11 to the tubular structure 8. Thereafter, the upper layer 2 and the lower layer 7 circumferentially welded together edge, possibly also with the formation of one or more gussets. 6
  • the passage opening 12 is formed rectangular, while the inlet opening 3 is circular. It is of course also possible to form the passage opening 12 also circular or provide slightly larger than the inlet opening 3.
  • the tubular structure 8 can also be fixed on a piece of material on the upper layer 2, for example, the piece of material that is formed during the punching of the passage opening 12.
  • the connection point between the tubular structure 8 and the above layer 2 may be formed as a predetermined breaking point, so that increase with increasing filling of the tubular structure 8, the forces on the joint, which then at Exceeding a predetermined breaking force can break off. Then the tubular structure 8 is ineffective as a pre-filter, but then hinders the incoming air flow less. As a result, the service life of the vacuum cleaner bag 1 can be further increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP12154173.4A 2011-02-15 2012-02-07 Sac d'aspirateur Active EP2489292B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011000339U DE202011000339U1 (de) 2011-02-15 2011-02-15 Staubsaugerbeutel

Publications (2)

Publication Number Publication Date
EP2489292A1 true EP2489292A1 (fr) 2012-08-22
EP2489292B1 EP2489292B1 (fr) 2015-04-01

Family

ID=43878042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12154173.4A Active EP2489292B1 (fr) 2011-02-15 2012-02-07 Sac d'aspirateur

Country Status (3)

Country Link
US (1) US20120204524A1 (fr)
EP (1) EP2489292B1 (fr)
DE (1) DE202011000339U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130055900A1 (en) * 2010-03-19 2013-03-07 Ralf Sauer Vacuum Cleaner Filter Bag
EP3181030A2 (fr) 2015-12-18 2017-06-21 BSH Hausgeräte GmbH Sac filtrant dépliable pour un aspirateur

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011000901U1 (de) * 2011-04-15 2011-08-29 Wolf Pvg Gmbh & Co. Kg Staubsaugerbeutel
DE102011109027A1 (de) * 2011-07-30 2013-01-31 Karl Stauber Filterbeutel zur Reinigung gasförmiger Medien
DE102015226058A1 (de) 2015-12-18 2017-06-22 BSH Hausgeräte GmbH Filterbeutel für einen Staubsauger
DE102018204784A1 (de) * 2018-03-28 2019-10-02 BSH Hausgeräte GmbH Einleger für einen Beutelfilter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370405A (en) 1964-12-18 1968-02-27 Studley Paper Company Inc Vacuum cleaner filter bags and method of manufacturing same
US5522908A (en) * 1994-05-27 1996-06-04 Hmi Industries, Inc. Filter bag for a vacuum cleaner
DE202006016303U1 (de) 2006-10-23 2006-12-21 Wolf Gmbh & Co. Kg Filterbeutel
WO2007059939A1 (fr) * 2005-11-22 2007-05-31 Eurofilters Holding N.V. Sac filtrant d'aspirateur et utilisation d'un sac filtrant d'aspirateur
DE202005021300U1 (de) * 2005-11-22 2007-08-23 Eurofilters Holding N.V. Staubsaugerfilterbeutel
DE102008031988B3 (de) * 2008-07-02 2009-09-10 Branofilter Gmbh Filterbeutel mit äußerem und innerem Beutel zum Einsatz in einem Staubsauger

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479802A (en) * 1965-02-23 1969-11-25 Studley Paper Co Multi-compartment vacuum cleaner filter bag
US5074997A (en) * 1990-01-25 1991-12-24 Riley And Wallace Filter and process for making a filter for dispersing ingredients into effluent
US6251154B1 (en) * 1992-05-06 2001-06-26 3M Innovative Properties Company Dust bag and method of production
US5647881A (en) * 1995-04-20 1997-07-15 Minnesota Mining And Manufacturing Company Shock resistant high efficiency vacuum cleaner filter bag
US6063171A (en) * 1998-11-16 2000-05-16 Electrolux Llc Bactericidal vacuum cleaner filter bag
US6156086A (en) * 1999-03-22 2000-12-05 3M Innovative Properties Company Dual media vacuum filter bag
ES2440722T3 (es) * 2008-03-07 2014-01-30 Eurofilters Holding N.V. Bolsa de filtro de aspiradora
DE202008007717U1 (de) * 2008-06-10 2008-08-07 Wolf Pvg Gmbh & Co. Kg Filterbeutel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370405A (en) 1964-12-18 1968-02-27 Studley Paper Company Inc Vacuum cleaner filter bags and method of manufacturing same
US5522908A (en) * 1994-05-27 1996-06-04 Hmi Industries, Inc. Filter bag for a vacuum cleaner
WO2007059939A1 (fr) * 2005-11-22 2007-05-31 Eurofilters Holding N.V. Sac filtrant d'aspirateur et utilisation d'un sac filtrant d'aspirateur
DE202005021300U1 (de) * 2005-11-22 2007-08-23 Eurofilters Holding N.V. Staubsaugerfilterbeutel
DE202006016303U1 (de) 2006-10-23 2006-12-21 Wolf Gmbh & Co. Kg Filterbeutel
DE102008031988B3 (de) * 2008-07-02 2009-09-10 Branofilter Gmbh Filterbeutel mit äußerem und innerem Beutel zum Einsatz in einem Staubsauger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130055900A1 (en) * 2010-03-19 2013-03-07 Ralf Sauer Vacuum Cleaner Filter Bag
US20130061566A1 (en) * 2010-03-19 2013-03-14 Ralf Sauer Vacuum Cleaner Filter Bag
US10178932B2 (en) * 2010-03-19 2019-01-15 Eurofilters Holding N.V. Vacuum cleaner filter bag
US10188248B2 (en) * 2010-03-19 2019-01-29 Eurofilters Holding N.V. Vacuum cleaner filter bag
EP3181030A2 (fr) 2015-12-18 2017-06-21 BSH Hausgeräte GmbH Sac filtrant dépliable pour un aspirateur
DE102015226056A1 (de) 2015-12-18 2017-06-22 BSH Hausgeräte GmbH Auffaltender Filterbeutel für einen Staubsauger
EP3181030A3 (fr) * 2015-12-18 2017-10-04 BSH Hausgeräte GmbH Sac filtrant dépliable pour un aspirateur
DE102015226056B4 (de) 2015-12-18 2019-04-25 BSH Hausgeräte GmbH Auffaltender Filterbeutel für einen Staubsauger

Also Published As

Publication number Publication date
DE202011000339U1 (de) 2011-04-14
US20120204524A1 (en) 2012-08-16
EP2489292B1 (fr) 2015-04-01

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