WO2009109361A1 - Staubsaugerfilterbeutel - Google Patents
Staubsaugerfilterbeutel Download PDFInfo
- Publication number
- WO2009109361A1 WO2009109361A1 PCT/EP2009/001503 EP2009001503W WO2009109361A1 WO 2009109361 A1 WO2009109361 A1 WO 2009109361A1 EP 2009001503 W EP2009001503 W EP 2009001503W WO 2009109361 A1 WO2009109361 A1 WO 2009109361A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- strip
- piece
- vacuum cleaner
- cleaner filter
- wall
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 290
- 125000006850 spacer group Chemical group 0.000 claims abstract description 4
- 230000035699 permeability Effects 0.000 claims description 9
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 description 18
- 239000000428 dust Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 239000000123 paper Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000003490 calendering Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000011111 cardboard Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 241000282461 Canis lupus Species 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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
-
- 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
- A47L9/102—Dust separators
Definitions
- the invention relates to a vacuum cleaner filter bag.
- EP 0 960 945 discloses a multilayer bag wall structure in which a coarse filter layer is arranged in front of a fine filter layer in the air flow direction.
- a vacuum cleaner filter bag which has in its interior a deflection device arranged in the region of the inlet opening for deflecting the air flow entering through the inlet opening. Furthermore, an air-permeable material layer is provided in the interior of the filter bag, which is unconnected to at least a part of the edge with the filter bag.
- the object of the present invention is to further improve the filter bags known from the prior art, so that a high service life is possible with high suction power. This object is achieved by a vacuum cleaner filter bag according to claim 1.
- a vacuum cleaner filter bag comprising
- a deflection strip for deflecting an air flow entering through the inlet opening, the deflection strip being arranged inside the vacuum cleaner filter bag, a strip of material disposed in the interior of the vacuum cleaner filter bag and connected to the bag wall, at least a portion of the edge of the strip of material being unconnected to the bag wall, and
- a spacer means formed such that the strip of material is at least partially spaced from the bag wall during operation of the vacuum cleaner filter bag.
- the spacing means may in particular be designed in such a way that the strip of material with its side facing away from the inlet opening is at least partially spaced from the bag wall. In particular, it may be spaced from the bag wall opposite the inlet opening. Furthermore, the material strip to be completely spaced apart from the bag wall to joints with the bag wall.
- the spacing means may comprise a piece of material which is provided on the side of the material strip facing away from the inlet opening.
- the spacing means may be formed in the form of the piece of material.
- the invention provides a vacuum cleaner filter bag comprising a bag wall of filter material, wherein an inlet opening is provided in the bag wall, a deflecting strip for deflecting an air stream entering through the inlet opening, the deflecting strip being disposed inside the vacuum cleaner filter bag, a strip of material inside the vacuum cleaner filter bag are arranged and connected to the bag wall, wherein at least a part of the edge of the strip of material with the bag wall is unconnected, and a piece of material which is provided on the side facing away from the inlet opening of the strip of material.
- the piece of material may in particular be designed such that an air flow is thereby guided on the side of the material strip facing away from the inlet opening.
- the piece of material carries an air flow on the side of the material strip facing away from the inlet opening (ie behind the strip) in the direction of the material strip.
- the strip of material is lifted in a simple manner by the air flow and spaced from the bag wall. He can move very well in the air flow, which has an advantageous distribution of the dust in the bag inside result.
- the piece of material may in principle be at least partially connected to the strip of material; but it can not be connected to the strip of material.
- the deflection strip can be designed to split the air flow into at least two partial flows. By such a division into two or more part streams a more uniform distribution of the filter cake in the vacuum cleaner filter bag is achieved. In addition, the number of particles per partial flow is reduced in comparison with the incoming air flow, which reduces the burden of the bag walls by the individual partial flows.
- the deflection strip can be designed to split the air flow into at least two partial flows with different, in particular opposite, flow directions.
- air enters the flow direction (inlet flow direction) through the inlet port and strikes the deflection strip.
- flow direction of the air flow or air flow direction is meant the main flow direction of the air, which runs generally parallel to a wall, for example a vacuum cleaner pipe or nozzle.
- main flow direction results at every point through the vacuum cleaner tube into the bag, even if turbulence may possibly occur at individual points.
- Opposing directions of flow means that both flow directions have a component in the plane perpendicular to the flow direction with which an air flow strikes the deflection strip, ie a component perpendicular to the inlet flow direction, the two components enclosing an angle of approximately 180 ° and the components in this plane are each larger than the corresponding component parallel to the inlet flow direction.
- the material strip can be arranged in particular on the inside of the vacuum cleaner filter bag on the side of the deflection strip facing away from the inlet opening. Seen from the inlet opening then the strip of material behind the deflection strip and the piece of material behind the strip of material. In particular, the material strip and / or the piece of material may lie opposite the inlet opening.
- the bag wall may comprise two wall pieces of filter material, wherein the inlet opening is provided in a first wall piece.
- the deflection strip may be connected to the first wall piece and / or to the second wall piece.
- the material strip and / or the piece of material may in particular be connected to the second wall piece.
- the strip of material may also be connected to the first wall piece.
- the second wall piece may face the inlet opening.
- the two wall pieces may be separate pieces of filter material, which are interconnected.
- the two wall pieces may be part of a contiguous piece of filter material, the two wall pieces being defined by the gussets on the two sides of the block bottom bag.
- the vacuum cleaner filter bag may further comprise a holding plate for holding the vacuum cleaner filter bag in a vacuum cleaner housing.
- the deflection strip may be connected to the retaining plate.
- the deflection strip, the material strip and / or the piece of material may have a smaller area than that of the bag wall. This allows a deflection of the air flow and a movement of the two strips in an advantageous manner.
- the deflection strip, the material strip and / or the piece of material may have a smaller area than one of the wall pieces.
- the material strip and / or the piece of material may extend over the entire length of the bag wall, in particular of the second wall piece.
- the width of the strip of material and / or the piece of material may also be less than the width of the bag wall, in particular the second wall piece be.
- the width may in particular be at most two thirds, preferably at most half the width of the bag wall, in particular of the second wall piece.
- the material of the piece of material may have a lower air permeability than the material of the bag wall and / or the material strip.
- an air flow from the rear ie on the side facing away from the inlet opening
- the material of the piece of material may have an air permeability of less than 2000 l / (m 2 s), in particular less 1000 l / (m 2 s), in particular less than 500 l / (m 2 s).
- the piece of material may be disposed inside the vacuum cleaner filter bag or outside the vacuum cleaner filter bag or may be formed as part of the bag wall. In particular, both in an arrangement inside and outside the piece of material may be connected to the bag wall. In an arrangement inside or outside the piece of material is thus formed as separate or separate from the bag wall element.
- the piece of material may additionally or alternatively be connected to the strip of material.
- the piece of material may be arranged in the interior of the vacuum cleaner filter bag and connected to the bag wall, wherein the piece of material is arranged such that the material strip is held with its side facing away from the inlet opening at least partially spaced from the bag wall.
- the spacing allows a simple way of guiding the air flow under the strip of material.
- the piece of material may be formed such that the strip of material is kept at least partially spaced apart by at least 0.1 mm, preferably at least 1.5 mm, more preferably at least 4 mm, from the bag wall, in particular the second wall piece.
- the piece of material can therefore in particular have a thickness of at least 0.1 mm, preferably at least 1.5 mm, more preferably at least 4 mm. The spacing and thus the thickness can reach up to several centimeters.
- the material strip and / or the piece of material may be formed in particular rectangular.
- the material strip and / or the piece of material may be parallel to the side be aligned edge of the bag wall, in particular of the second wall piece.
- the two longitudinal sides of the material strip and / or of the piece of material may be spaced from the corresponding (parallel) side edges of the bag wall or the second wall piece, for example centrally with respect to the width of the second wall piece.
- the piece of material may be in the form of a strip.
- the material strip and the piece of material can be arranged one above the other or one above the other; In this case, the piece of material is arranged inside the vacuum cleaner filter bag.
- the two strips lie flat against one another in this way.
- the strip-shaped piece of material can also be fastened outside on the bag wall. This also makes it possible to achieve an air deflection from behind on the strip of material, since the air permeability is reduced overall in this area of the bag wall.
- the piece of material and the strip of material may have the same width and / or length. Alternatively, they may have a different width and / or length. In particular, the strip of material may have a greater length and / or width than the piece of material.
- the deflection strip, the material strip and / or the piece of material can be rectangular; they can, in particular if they are formed as strips, in each case along two opposite edges, in particular along the short edges, be connected to the bag wall.
- the deflection strip, the material strip and / or the piece of material can be connected to the bag wall only at these locations, that is, at two edges or edges.
- the strip of material may also be connected at these locations with the deflection strip.
- the spacing means may comprise a connecting device, via which the material strip is connected to the bag wall and / or the deflection strip.
- the invention thus also provides a vacuum cleaner filter bag comprising a bag wall of filter material, wherein an inlet opening is provided in the bag wall, a deflecting strip for deflecting an air stream entering through the inlet opening, the deflecting strip being arranged inside the vacuum cleaner filter bag, a strip of material, which are arranged in the interior of the vacuum cleaner filter bag and connected to the bag wall, wherein at least part of the edge of the strip of material is unconnected to the bag wall, and connecting means by which the strip of material is connected to the bag wall and / or the deflecting strip in the said manner.
- the spacing means may in particular consist of the piece of material and / or the connecting device.
- the connecting device may comprise at least one splice and / or a weld.
- the material strip can advantageously be connected to the bag wall and / or the deflection strip.
- the at least one splice and the at least one weld may be formed, for example, in the form of one or more adhesive or welding points or linear.
- the strip of material is rectangular, it can, in particular if it is designed as a strip, be connected along two opposite edges, in particular along the short edges, to the bag wall and / or to the deflection strip.
- the connection with the bag wall may in particular be at the hem or with the wall piece in which the inlet opening is provided.
- the strip of material may then be connected, for example glued or welded, to the deflection strip and / or the bag wall, in particular to the wall piece in which the inlet opening is provided.
- the bag wall may have a seam and the strip of material and / or the piece of material at the seam may be connected to the bag wall (in particular if the piece of material is formed as a separate element from the bag wall).
- a first wall piece and a second wall piece can be connected to one another via a seam and the material strip and / or the piece of material at the seam can be connected to the second wall piece.
- the seam can be formed by a connecting seam, for example by a welded or adhesive seam.
- the material strip and / or the piece of material can also be connected to the bag wall at a distance from the seam.
- the deflection strip may have a shorter length than the length of the bag wall or the first wall piece. Alternatively, however, the deflection strip may extend over the entire length of the bag wall or the first wall piece.
- the piece of material may have a smaller area than the strip of material. In particular, the piece of material may have a smaller width and / or a shorter length than the strip of material. Alternatively, however, the piece of material can also protrude over the strip of material in one or both dimensions, in particular be made larger in one or both dimensions.
- the deflection strip, the material strip and / or the piece of material may have a width that is greater than the diameter of the inlet opening.
- the width of the deflection strip may be less than the width of the material strip and / or the piece of material.
- the deflection strip, the material strip and / or the piece of material may be slotted, in particular have a plurality of slots.
- each sub-strips are formed, which are optionally relatively independently movable.
- the slitting of the piece of material is particularly advantageous for separate pieces of material.
- four to ten slots can be provided.
- the slots can be the same distance.
- partial strips can be formed through the slits whose width is 0.3 cm to 3.5 cm, in particular 0.5 cm to 1.5 cm.
- the slots may be spaced apart from each other by said dimensions.
- the slots may each be formed parallel to a side edge of the deflection strip, the material strip or the spacer element.
- the slots may be formed parallel to a respective longitudinal edge.
- One or more slots may each extend substantially the entire length of the deflection strip, the strip of material or the piece of material and / or the entire length between two connection points. In particular, all slots can extend over the entire length. This would be the partial strips on the extend the entire length of the deflection strip or the respective strip.
- the connection points are the locations at which the deflection strip, the material strip and / or the piece of material are connected to the bag wall, that is, for example, the connection seams at the short edges.
- connection of the deflection strip, the material strip and / or the piece of material with the bag wall and / or a holding plate can be effected in particular by gluing or welding.
- the deflection strip, the material strip and / or the piece of material can be glued or welded pointwise or linearly with the bag wall or the holding plate.
- the strips may be formed rectangular and connected at their short edges pointwise or line with the bag wall.
- the piece of material can also be glued or welded to the entire surface of the bag wall.
- the deflecting strip may comprise or consist of an air-permeable or an air-impermeable material.
- the baffle may comprise a nonwoven fabric, particularly an extrusion nonwoven such as a spunbond nonwoven or a spunbond fabric, a nonwoven web, a wet laid web and / or a dry laid web, a paper, a paperboard , a net, a woven fabric and / or a foil, for example perforated.
- the deflection strip may comprise or consist of a laminate of a plurality of said layers.
- the basis weight of the deflection strip can range from 10 g / m 2 to 300 g / m 2 , in particular from 50 to 200 g / m 2 .
- the strip of material and / or the piece of material may comprise a nonwoven, in particular an extrusion nonwoven, such as a spunbond nonwoven or a spunbond nonwoven, a wet laid nonwoven and / or a dry laid web, a paper, a net, a woven fabric and / or a perforated film.
- the deflection strip and / or the piece of material may comprise or consist of a laminate of a plurality of said layers.
- the strip of material and / or the piece of material may comprise a composite of two filament spunbonded fabric layers, between which a drained nonwoven fabric of staple fibers is arranged. The construction can be described, for example, as described in DE 10 2005 059 214.
- the piece of material may in particular also comprise a cardboard.
- the basis weight of the material strip and / or the piece of material may be from 20 g / m 2 to 300 g / m 2 , in particular from 80 to 200 g / m 2 , rich.
- the air permeability of the material strip can range from 100 to 10,000 l / (m 2 s), in particular from 500 to 3000 l / (m 2 s).
- the piece of material can also be formed by a treatment, in particular by solidification, of the bag wall.
- the piece of material is then not designed as a separate element.
- a region of the entire bag wall or a region of one or more layers of the bag wall can be solidified.
- the solidification can be achieved for example by a full-scale thermal calendering. This reduces the air permeability in this area compared to the surrounding area.
- the vacuum cleaner filter bags described above may be disposable bags. In particular, they can be designed as flat bags. In particular, these may consist of two rectangular wall pieces, which are interconnected along their edges, for example, welded or glued, are. On each of two opposite sides of the vacuum cleaner filter bag, one side fold can be introduced in each case. On the first wall piece may be arranged at the inlet opening, a holding plate for holding the vacuum cleaner filter bag in a vacuum cleaner housing.
- Fig. 1 is a schematic cross-sectional view of an example of a vacuum cleaner filter bag
- Fig. 2 is a schematic plan view of an example of a first wall piece
- Fig. 3 is a schematic plan view of an example of a second wall piece
- Fig. 4 is a schematic cross-sectional view of another example of a vacuum cleaner filter bag
- Fig. 5 is a schematic cross-sectional view of another example of a vacuum cleaner filter bag
- FIG. 1 schematically shows a cross-sectional view of a vacuum cleaner filter bag 1.
- the vacuum cleaner filter bag is constructed in the form of a flat bag. It consists of a first rectangular wall piece 2 and a second rectangular wall piece 3, which are each constructed of one or more layers of filter material.
- each wall piece may consist of a multilayer composite comprising one or more nonwoven fabric layers and / or one or more nonwovens. Thus, between two extrusion nonwoven layers, z.
- a nonwoven layer of staple fibers which is solidified by means of calendering between the nonwoven fabric layers.
- nonwoven is used in accordance with the definition according to ISO Standard I-SO 9092: 1988 or CEN Standard EN 29092.
- a nonwoven fabric may in particular be laid dry or wet or an extrusion nonwoven fabric, for example a fiber-spun nonwoven fabric ( meltblown nonwoven microfiber nonwoven fabric, the nomenclature being according to W. Albrecht et al., "Nonwovens", Wiley-VCH, 2000, see, for example, page 186) or "spunbond nonwoven".
- the distinction between wet-laid nonwovens and conventional wet-laid paper is made in accordance with the above definition, as used by the International Association Serving The Nonwovens and Related Industries EDANA (www.edana.org).
- nonwoven fabric When referring to paper or filter paper, it is meant (conventional) wet laid paper which is excluded in the above definition of nonwoven fabric.
- Under a fleece (“Web") is a layer of still loose, d. H. unconnected, understood fibers. By solidifying the loose fibers, a nonwoven fabric can be obtained.
- the basis weight was determined according to DIN EN ISO 9073-1.
- the thickness of the materials was determined according to DIN EN ISO 9073-2 (method A).
- the air permeability was determined according to EN ISO 9237 with an area of 20 cm 2 and a differential pressure of 200 Pa.
- the two wall pieces may for example have a structure as described in European Patent Application No. 07 013 312.9. This advantageously makes it possible to provide a disposable bag.
- the two rectangular wall pieces are stacked and joined together along its edge, so that a seam 4 is formed by the peripheral seam. It may be, for example, an adhesive or weld.
- the first wall piece 2 has an inlet opening 5, through which an air stream enters the vacuum cleaner filter bag during operation of the vacuum cleaner filter bag.
- a holding plate 6 is fastened in the region of the inlet opening and serves to hold the vacuum cleaner filter bag inside a vacuum cleaner.
- Such a holding plate can be glued or welded, for example, with the filter material of the wall piece.
- a deflection strip 7 is arranged on the first wall piece 2.
- the strip in the example shown is rectangular and connected along the two short edges (perpendicular to the plane of the drawing) with the filter material of the first wall piece, for example glued or welded. With the exception of the two connecting seams along the short edges, the deflecting strip 7 is loose, i. H. not connected to the bag wall. In particular, no seam is provided along the long edges.
- the deflection strip can also be connected to the holding plate and / or the second wall piece (at least along one edge).
- the deflection strip 7 is arranged in the region of the inlet opening 5, ie does not extend over the entire length of the first wall piece 2. It may have a length of 20 cm and a width of 7 cm.
- the arrangement of the deflector strip with respect to the inlet opening may be asymmetrical (as in the example shown) or symmetrical.
- the dimensions of the deflection strip 7 may be selected such that the inlet opening 5 is covered.
- the deflection strip 7 may consist of an air-impermeable or air-permeable material. It can be single or multi-layered.
- the deflecting strip 7 may consist of a filament spunbonded nonwoven layer joined to an (air impermeable) film.
- the deflection strip can have a basis weight of 150 g / m 2 .
- a material strip 9 and a spacing means are furthermore arranged.
- the spacing means is a strip-shaped material rial Culture 8 formed.
- the material strip 9 and the piece of material 8 are both connected to the second wall piece 3.
- the material strip 9 and the piece of material 8 are arranged on the side opposite the inlet opening 5 side of the vacuum cleaner filter bag.
- neither the strip of material nor the piece of material must be connected on one or both sides with the second wall piece; For example, a connection with each other and / or with the first wall piece is also possible.
- the piece of material can for example also be folded or pleated.
- the piece of material does not have to be strip-shaped. It may, for example, also be a piece of cardboard that has a fold structure such that a spacing of the material strip is achieved by a desired amount.
- the piece of material can also be fastened in the same way on the outside of the bag wall. According to a further alternative, the piece of material can also be obtained by solidification of a region of the bag wall.
- the strip of material extends over the entire length of the second wall piece 3; the piece of material is shorter.
- the strip of material may have a length of 26 cm, which corresponds to the length of the wall piece, and a width of 11 cm.
- the piece of material may have a length of 22 cm and a width of 8 cm.
- connection of the material strip with the second wall piece is realized in that the material strip extend into the seam 4 and are connected via the connection of the seam (for example a welded or glued seam) to the second wall piece and also to the first wall piece ,
- the strip-shaped piece of material is glued or welded to the second wall piece.
- the piece of material can be glued or welded either point or line shape from the full surface with the bag wall.
- the Material strip also connected on one or both sides not on the hem with the bag wall but directly connected to the first wall piece 2 at spaced locations from the hem, for example, glued or welded. In this case, the material strip advantageously does not extend over the entire length of the first or second wall piece.
- the two strips can, but need not, be the same. They may differ in particular in the dimensions, materials, air permeabilities and / or basis weights. Preferably, however, both strips have a width that is greater than the diameter of the inlet opening 5.
- the material strip and the piece of material can have two cover nonwovens in the form of a filament spunbonded nonwoven fabric, between which a web of loose fibers (in particular crimping fibers) is arranged, which is connected to the filament spunbonded fabric layers by means of calendering.
- the basis weight of the strip of material and the piece of material may in the example be between 100 and 200 g / m 2 ;
- the thickness of both strips can be 3 - 4 mm.
- the air permeability of the piece of material is preferably less than 2000 l / (m 2 s).
- the piece of material may also be formed in the form of a film, which may be impermeable to air or perforated, for example. Such a film may have a thickness of, for example, 0.1 mm.
- airflow enters the vacuum cleaner filter bag through inlet port 5 and is deflected by deflector strip 7.
- deflector strip 7 Depending on the design and arrangement of the deflection strip, the incoming air flow is divided in particular into two partial flows with different flow directions.
- the air can in particular flow under and between the two strips and set them in motion, so that the sucked-in dust can be distributed evenly inside the vacuum cleaner filter bag.
- the piece of material can be arranged symmetrically with respect to the inlet opening and / or the bag wall, in particular of the second wall piece (that is to say with the same spacing in the width and / or the length from the edge of the bag).
- the arrangement may also be asymmetrical with respect to the inlet opening and / or the bag wall, in particular the second wall piece.
- FIG. 2 schematically shows a plan view (from the inside of the vacuum cleaner filter bag) of an example of a first wall piece 2.
- the inlet opening 5 is drawn in dashed lines. Covering the inlet opening 5, a deflection strip 7 is connected to the first wall piece 2. In particular, this connection can take place via welded or adhesive seams along the short edges of the deflection strip. Otherwise, the deflection strip is unconnected, ie loose.
- the deflection strip 7 has a rectangular shape and is arranged parallel to but spaced from the edges of the first wall piece.
- the deflection strip can be a continuous strip.
- slots 10 may be provided in the deflection strip.
- the deflection strip then consists of several partial strips, in the example shown, consisting of five partial strips.
- the slots extend over the entire length of the deflection strip, or over the entire length between the two connecting seams at the short edges. Alternatively, however, a part of the slots or all slots may be formed shorter than the length of the deflection strip. In the example shown, the slots are arranged parallel to the longitudinal side of the deflection strip. Again, other orientations of the slots are alternatively possible.
- the slots allow different portions of the deflection strip to be relatively independently movable. Furthermore, air can flow through the slots relatively unhindered, so that the expression of the two partial flows is somewhat reduced.
- Fig. 3 is a plan view of the inside of a second wall piece 3 is shown schematically. This page is located in the prefabricated vacuum cleaner filter bag of the side shown in Fig. 2 and thus the inlet opening.
- a strip of material 9 is connected, which is arranged over a strip-shaped piece of material, the latter can not be seen in this plan view.
- the material strip 9 extends over the entire length of the second wall piece 3, but it has a smaller width; it may in particular have the dimensions mentioned in connection with FIG. Alternatively, however, the material strip may also have a shorter length than the length of the second wall piece.
- the material strip 9 is connected to the second wall piece via the peripheral seam of the vacuum cleaner filter bag.
- the material strip 9 may consist of a continuous piece of material.
- the strip 9 may have slots 11 formed by the partial strips, in the example shown four partial strips.
- the slots extend the full length of the strip.
- the slots may be shorter or have a different orientation.
- the partial strips may have, for example, a width of 12.5 mm.
- the strip-shaped piece of material has in the example a smaller length and width than the strip of material and is thus covered by this.
- the strip-shaped piece of material can also be slotted.
- the material strip and the strip-shaped material piece each have slots of the same type (orientation, length, width, etc.).
- one of the two strips may have slots over the entire length and the other strip may only have shorter slots or none at all.
- the slots in the strip of material and in the strip-shaped piece of material can be arranged offset or offset from one another. In the former case, this means that the projection of the slits of the strip of material on the piece of material lie on the slots of the piece of material. In the latter case, the projection of the slots would be offset from the slots of the piece of material itself.
- the deflection strip may, but need not completely, cover the inlet opening.
- the (geometric) center of gravity of the deflection strip may be displaced with respect to the center (or a straight line perpendicular to the plane of the inlet opening and passing through the center thereof) of the inlet opening.
- the material strip and / or the piece of material can also be displaced relative to one another and / or with respect to the inlet opening.
- the centers of gravity of the deflection strip, of the material strip and / or of the piece of material can be displaced relative to one another and / or with respect to the center of the inlet opening.
- the spacing means consists of a connection point 12 between the material strip 9 and the deflection strip 7.
- This connection point 12 may be a point or line-shaped adhesive or weld.
- the deflection strip is as in the case of Figure 1 formed, even if other dimensions and arrangements on the first wall piece 2 are possible.
- the material strip 9 is connected at the left edge over the seam 4 with the first and the second wall piece. At its right edge, the strip of material is connected to the first wall piece (for example glued or welded), this connection lying at a position spaced from the seam.
- an additional piece of material, such as the piece of material 8 in Figure 1 is not required. However, such can nevertheless be provided, in particular in order to further promote lifting of the strip of material and to reinforce it.
- two spaced connection points of the material strip 9 may be provided with the deflection strip 7.
- the strip of material may be connected to the deflection strip at the locations where the deflection strip is connected to the bag wall.
- a continuous weld of bag wall, deflection strips and strips of material could be formed. If the strip of material is connected in particular at two points with the deflection strip, the strip of material no longer has to extend beyond the deflection strip. This then gives a kind of doubling of the deflection strip. Further connections of the material strip with the bag wall are not required. In particular, in this case, slots in the deflection strip and strips of material, in particular in mutually offset form, advantageous.
- connection on the right side of the material strip can also be made via the hem on the right side of the bag.
- the spacing means consists of both the piece of material 8 and the joint 12, wherein in this example the piece of material is optional.
- the piece of material may in particular be designed as described in connection with FIG.
- the material strip 9 is connected on the one hand on both sides via the seam 4 with the bag wall. On the other hand, an adhesive or weld 12 is present seen, so that the material strip 9 is additionally connected to the first wall piece 2.
- FIG. 6 shows comparative measurements for different vacuum cleaner filter bag configurations.
- a dust load test with DMT dust (Type 8) according to EN 60312 (Draft 4th edition) was carried out.
- the vacuum cleaner used is a Miele S 712 SAC.
- the standard engine protection filter and the standard exhaust filter were used.
- the basis for the investigations are the vacuum cleaner filter bags F / J / N series (batch 56 12.14) available from Wolf GmbH & Co. KG.
- the dimensions of this flat bag are 290 x 260 mm.
- a material strip (“SR 2”) is provided, which has a size of 260 ⁇ 110 mm and is thus fastened to the hem at both short edges, This material strip has 9 continuous slots with a width of approximately 12 mm each These are two filament spunbonded nonwoven layers, between which a layer of crimping patches is arranged, and the total thickness of the strip of material is approximately 4 mm., For a bag modified in this way, a significantly improved volumetric flow occurs at a dust loading of 400 g.
- SR3 a piece of material
- the piece of material has the dimensions 220 x 80 mm and is made of the same material as the material strip.
- the piece of material is arranged symmetrically with respect to the inlet opening and the second wall piece.
- the piece of material has 6 continuous strips with a width of about 12.5 mm.
- the piece of material will be in the form of a 2cm (unslotted) strip of the same length as the strip of material, and the piece will be the same material as the strip of material (see above).
- 290 x 260 - SR 1 + SR 2/12 + Support film refers to a bag as in the previous examples, where the piece of material is a form of a 40 x 80 mm PP film, which is transverse to the strip of material in the middle The longitudinal dimension of the strip of material is thus perpendicular to the longitudinal dimension of the piece of material.
- a piece of material with which the air is directed from the back to the strip of material significantly improves the volume flow even with a dust load of 400 g compared to a conventional vacuum cleaner bag.
- a connecting device for example an additional adhesive or welding point, is used in order to keep the strip of material spaced from the bag wall during operation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980108144.6A CN101965149B (zh) | 2008-03-07 | 2009-03-03 | 吸尘器过滤袋 |
US12/919,611 US8372174B2 (en) | 2008-03-07 | 2009-03-03 | Vacuum filter cleaner bag |
AU2009221232A AU2009221232B2 (en) | 2008-03-07 | 2009-03-03 | Vacuum cleaner filter bag |
NO20101238A NO340916B1 (no) | 2008-03-07 | 2010-09-03 | Filterpose for støvsuger |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08004271.6A EP2098151B1 (de) | 2008-03-07 | 2008-03-07 | Staubsaugerfilterbeutel |
EP08004271.6 | 2008-03-07 | ||
EP08012059.5A EP2098153B1 (de) | 2008-03-07 | 2008-07-03 | Staubsaugerfilterbeutel |
EP08012059.5 | 2008-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009109361A1 true WO2009109361A1 (de) | 2009-09-11 |
Family
ID=39564543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/001503 WO2009109361A1 (de) | 2008-03-07 | 2009-03-03 | Staubsaugerfilterbeutel |
Country Status (9)
Country | Link |
---|---|
US (1) | US8372174B2 (de) |
EP (3) | EP2098151B1 (de) |
CN (1) | CN101965149B (de) |
AT (1) | ATE498348T1 (de) |
AU (1) | AU2009221232B2 (de) |
DE (2) | DE502008002608D1 (de) |
ES (3) | ES2440722T3 (de) |
NO (1) | NO340916B1 (de) |
WO (1) | WO2009109361A1 (de) |
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ES2325775T3 (es) * | 2007-08-17 | 2009-09-16 | Eurofilters Holding N.V. | Bolsa de filtro de aspiradora. |
DE202009002970U1 (de) * | 2008-07-02 | 2009-11-19 | Branofilter Gmbh | Staubfilterbeutel mit Pralleinrichtung |
ES2876248T3 (es) * | 2009-06-19 | 2021-11-12 | Eurofilters Nv | Bolsa plana para aspiradora |
ES2549756T3 (es) * | 2009-06-19 | 2015-11-02 | Eurofilters N.V. | Bolsa plana para aspirador de polvo con al menos dos difusores |
ES2607032T3 (es) * | 2009-06-24 | 2017-03-28 | Eurofilters N.V. | Bolsa de filtro de fondo macizado para aspirador de polvo |
DE102010000129B4 (de) * | 2010-01-19 | 2011-06-16 | Wolf Pvg Gmbh & Co. Kg | Staubsaugerbeutel und Verfahren zur Herstellung eines Staubsaugerbeutels |
DK2366319T3 (en) | 2010-03-19 | 2015-05-26 | Eurofilters Holding Nv | Vacuum cleaner filter bag |
EP2465398A1 (de) * | 2010-12-17 | 2012-06-20 | Wolf PVG GmbH & Co. KG | Staubsaugerbeutel und Verfahren zum Herstellen eines Staubsaugerbeutels |
DE202011000339U1 (de) * | 2011-02-15 | 2011-04-14 | Wolf Pvg Gmbh & Co. Kg | Staubsaugerbeutel |
EP2644077A1 (de) * | 2012-03-27 | 2013-10-02 | Jan Schultink | Verfahren zum Optimieren einer Vorrichtung zum Staubsaugen mit Hand-, Kompakt oder Upright-Staubsaugergerät und Filterbeutel |
PL2777795T3 (pl) * | 2013-03-15 | 2016-09-30 | Worek filtrujący do odkurzacza | |
CN104116462B (zh) * | 2013-04-26 | 2017-06-30 | 天佑电器(苏州)有限公司 | 过滤袋及具有该过滤袋的吸尘器 |
US10285549B2 (en) | 2014-06-03 | 2019-05-14 | Shop Vac Corporation | Wet/dry vacuum bag |
ES2916748T3 (es) * | 2015-12-12 | 2022-07-05 | 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 | |
PL3219237T3 (pl) | 2016-03-17 | 2018-10-31 | Eurofilters Holding N.V. | Płytka mocująca z udoskonalonym elementem zamykającym |
PL3219376T3 (pl) | 2016-03-17 | 2019-04-30 | Eurofilters Nv | Worek filtracyjny do odkurzacza z pochodzących z recyklingu tworzyw sztucznych |
AU2017232262B2 (en) | 2016-03-17 | 2022-03-10 | Eurofilters N.V. | Vacuum-cleaner filter bag made from recycled plastic |
EP3219235B1 (de) | 2016-03-17 | 2021-12-29 | Eurofilters Holding N.V. | Vorrichtung für einen staubsaugerfilterbeutel mit einer haltevorrichtung und einer verschlussvorrichtung |
EP3219236B1 (de) | 2016-03-17 | 2021-09-01 | Eurofilters Holding N.V. | Halteplatte mit verbessertem verschluss |
ES2740995T3 (es) | 2016-03-17 | 2020-02-07 | Eurofilters Nv | Bolsa filtrante para aspiradora de polvo, a base de materiales sintéticos reciclados |
ES2668626T3 (es) | 2016-03-17 | 2018-05-21 | Eurofilters N.V. | Bolsa de filtro de aspiradora con materiales textiles reciclados y/o línteres de algodón |
DE202016008752U1 (de) | 2016-10-06 | 2019-06-17 | Eurofilters N.V. | Staubsaugerfilterbeutel mit recycliertem Textilmaterialien und/oder Baumwolllinters |
ES2742406T3 (es) | 2016-10-06 | 2020-02-14 | Eurofilters Nv | Bolsas filtro para aspiradora con materiales textiles reciclados y/o línters de algodón |
ES2894746T3 (es) | 2017-02-07 | 2022-02-15 | Eurofilters Holding Nv | Placa de sujeción para una bolsa de filtro de aspiradora con dispositivo de cierre |
EP3530171B1 (de) | 2018-02-23 | 2021-04-07 | Eurofilters Holding N.V. | Halteplatte mit dichtungselement |
PL3669734T3 (pl) | 2018-12-17 | 2021-07-05 | Eurofilters Holding N.V. | Worek filtracyjny do odkurzacza mający spoinę zgrzewaną o ulepszonej wytrzymałości |
EP3821776A1 (de) * | 2019-11-12 | 2021-05-19 | Eurofilters Holding N.V. | Staubsaugerfilterbeutel für einen handstaubsauger |
EP3950087A1 (de) | 2020-08-06 | 2022-02-09 | Eurofilters N.V. | Staubsaugerfilterbeutel aus recyclierten kunststoffen |
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2008
- 2008-03-07 ES ES08004271.6T patent/ES2440722T3/es active Active
- 2008-03-07 EP EP08004271.6A patent/EP2098151B1/de active Active
- 2008-04-11 DE DE502008002608T patent/DE502008002608D1/de active Active
- 2008-04-11 DE DE202008005050U patent/DE202008005050U1/de not_active Ceased
- 2008-04-11 ES ES08007225T patent/ES2358553T3/es active Active
- 2008-04-11 AT AT08007225T patent/ATE498348T1/de active
- 2008-04-11 EP EP08007225A patent/EP2098152B1/de not_active Revoked
- 2008-07-03 ES ES08012059.5T patent/ES2529052T3/es active Active
- 2008-07-03 EP EP08012059.5A patent/EP2098153B1/de active Active
-
2009
- 2009-03-03 WO PCT/EP2009/001503 patent/WO2009109361A1/de active Application Filing
- 2009-03-03 CN CN200980108144.6A patent/CN101965149B/zh active Active
- 2009-03-03 US US12/919,611 patent/US8372174B2/en active Active
- 2009-03-03 AU AU2009221232A patent/AU2009221232B2/en active Active
-
2010
- 2010-09-03 NO NO20101238A patent/NO340916B1/no not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
---|---|
US20110047945A1 (en) | 2011-03-03 |
EP2098153A1 (de) | 2009-09-09 |
EP2098151A1 (de) | 2009-09-09 |
ES2529052T3 (es) | 2015-02-16 |
EP2098153B1 (de) | 2014-12-24 |
EP2098152A1 (de) | 2009-09-09 |
NO340916B1 (no) | 2017-07-10 |
NO20101238L (no) | 2010-10-22 |
AU2009221232B2 (en) | 2014-01-09 |
EP2098152B1 (de) | 2011-02-16 |
ES2440722T3 (es) | 2014-01-30 |
DE202008005050U1 (de) | 2008-06-26 |
ES2358553T3 (es) | 2011-05-11 |
EP2098151B1 (de) | 2013-10-23 |
CN101965149B (zh) | 2014-07-23 |
CN101965149A (zh) | 2011-02-02 |
DE502008002608D1 (de) | 2011-03-31 |
AU2009221232A1 (en) | 2009-09-11 |
US8372174B2 (en) | 2013-02-12 |
ATE498348T1 (de) | 2011-03-15 |
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