WO2019162424A1 - Halteplatte mit zentriervorrichtung - Google Patents
Halteplatte mit zentriervorrichtung Download PDFInfo
- Publication number
- WO2019162424A1 WO2019162424A1 PCT/EP2019/054412 EP2019054412W WO2019162424A1 WO 2019162424 A1 WO2019162424 A1 WO 2019162424A1 EP 2019054412 W EP2019054412 W EP 2019054412W WO 2019162424 A1 WO2019162424 A1 WO 2019162424A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holding plate
- vacuum cleaner
- passage opening
- centering device
- bag
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
- A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
- A47L9/1436—Connecting plates, e.g. collars, end closures
-
- 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 bag.
- Such retaining plates are known in many forms and have a passage or filling opening through which the connecting piece of a vacuum cleaner can be inserted into the vacuum cleaner bag.
- Such vacuum cleaner can have very different diameters.
- an elastic seal or a sealing ring is often used.
- Such seals are usually made of rubber or a thermoplastic elastomer (TPE). They may be formed integrally with the retaining plate or as a separate component on the retaining plate, under the retaining plate or in the filter bag.
- Cardboard holding plates in which pre-cut parts can be cut out to match the hole diameter to the vacuum nozzle, are also known.
- a vacuum cleaner bag in which an elastic rubber layer is disposed between a holding plate and the vacuum cleaner bag, which is reinforced by a further rigid material layer.
- a dust collecting bag is bonded directly to a seal made of a polymeric material.
- DE 10 2010 060 353 A1 describes a vacuum cleaner bag comprising a flat, elastic sealing element which is arranged inside and / or outside the bag wall.
- a vacuum cleaner bag is known in which a flexible sealing ring with the bag, and the retaining plate is welded to the sealing ring.
- DE 10 2007 062 028 B4 describes a dust filter bag in which a layer of rubber-elastic material forms a protruding sealing ring on the inside of the filter bag.
- the relative arrangement of a holding plate to a vacuum cleaner socket received in it in the case of an unfilled, vacuum cleaner bag mounted in the housing of a vacuum cleaner referred to as a "reference position".
- the vacuum cleaner nozzle In the reference position, the vacuum cleaner nozzle is usually centered in the filling opening, that is, in the plane in which the filling opening extends, the distance between the vacuum cleaner nozzle and the edge of the filling opening is substantially constant along the entire circumference of the vacuum cleaner nozzle.
- the seal closes the vacuum cleaner neck in the reference position evenly around its circumference. Thus, the sealing properties of the holding plate in the reference position are best.
- Such a radial displacement of the retaining plate leads, in particular, to the fact that the filling opening is displaced from the reference position relative to the vacuum cleaner neck received in the retaining plate. This often leads to a deformation of the seal and thus to a deterioration of the sealing properties.
- the retainer plate may shift into its holder when the vacuum cleaner is opened to check the level of the vacuum cleaner bag, which often involves removing the vacuum cleaner nozzle from the bag. This, in turn, results in a radial displacement of the vacuum cleaner nozzle and filling opening relative to one another when closing the apparatus, and in consequence to the above-described negative effects on the sealing properties.
- the object of the invention is therefore to provide a holding plate, which allows a reliable seal.
- the holding plate comprises a sealing element, as well as a base plate, in which a passage opening is formed.
- the passage opening may be formed in particular circular. But there are other forms of the passage opening possible, for example, they may have an oval, in particular ellipsoidal or rectangular shape.
- the retaining plate can be attached to a holding device in a vacuum cleaner housing.
- the vacuum cleaner filter bag with the help of the holding plate via a vacuum cleaner side connecting piece be pushed.
- the sealing element is intended to prevent or limit the escape of dust from the vacuum cleaner filter bag by sealing the area between the inner edge of the passage opening and the outside of a connecting piece of the vacuum cleaner.
- the sealing element may consist of rubber and / or TPE and / or of the material of the vacuum cleaner filter bag. But it can also consist of any other material which has sufficient elasticity for the necessary sealing effect.
- the sealing element may be molded onto the retaining plate.
- the holding plate comprises a Zentriervorrichtu ng, which extends at least partially along the edge of the passage opening and comprises at least a first spring element.
- the spring element when deformed in the radial direction, the spring element exerts a restoring force directed counter to the deformation.
- the centering device ensures by means of the restoring force that the holding plate is held relative to the vacuum cleaner neck in the reference position and / or returned to the reference position.
- the deformation of the spring element generates a spring force, which is transmitted to the vacuum cleaner neck. Since this, as stated above, is fixed by the vacuum cleaner housing results in the resulting, acting from the vacuum cleaner nozzle on the retaining plate, counterforce in a displacement of the retaining plate which is opposite to the original radial displacement.
- the spring element can be formed from a deformed region of the holding plate, in particular the base plate.
- the deformed region may preferably be deformed wave-shaped, wherein such deformation may include one or more waves. Under a wave while a survey and / or depression is to be understood perpendicular to the main extension plane of the holding plate. In addition, a planar region that adjoins an elevation and / or depression may also be part of the wave. The profile of such a survey may be, for example, V- or U-shaped. If the deformed area contains several waves, the individual waves can have the same profile or different profiles. In the case of multiple waves, all waves may consist of elevations or depressions, or elevations and depressions may alternate. The individual waves can adjoin one another directly or they can be separated from one another by undeformed areas of the holding plate.
- the waves can be arranged concentrically with respect to the passage opening. It means concentrically that the waves are substantially parallel to the edge of the passage opening.
- the deformed region directly causes the deformed region to assume spring properties. Furthermore, the thus deformed area can be compressed, and therefore allows the inclusion of vacuum cleaner nozzle with different diameters.
- the deformed region may also include other structures that impart spring properties to the region.
- the extent of the deformed area in the circumferential direction of the passage opening can increase radially outward.
- the spring element can be formed by the wave-shaped deformation of a circular ring sector of the holding plate, ie by a segment of the holding plate, which, starting from the center of the passage opening, is formed by two different radii and an intermediate circular ring.
- the retaining plate may be formed in several pieces.
- the Zentierelement can be glued or welded to the base plate.
- the holding plate may be integrally formed, in particular, the centering device may be formed integrally with the base plate.
- the centering device can at least partially form the edge of the passage opening.
- the retaining plate may further comprise at least a second spring element.
- the arrangement of the spring elements may in particular be designed so that it has no rotational symmetry with respect to the passage opening.
- an n-fold rotational symmetry of the arrangement of the spring elements with respect to the passage opening to be understood that the arrangement of the spring elements can be converted by a rotation of 3607h about an axis corresponding to the central axis of the vacuum cleaner nozzle in the reference position in itself.
- a "simple" rotational symmetry is synonymous with no rotational symmetry.
- the spring elements can be the same size or have different sizes. In particular, they may have different dimensions in the circumferential direction of the passage opening. Furthermore, the spring elements may be spaced apart in the circumferential direction or be separated from each other only by incisions. In other words, between each two spring elements lie an undeformed region of the holding plate or a free space.
- the Zentriervorrichtu ng the retaining plate may be further formed as a diaphragm spring.
- a diaphragm spring here describes a spring which extends substantially in a main plane of extent, wherein the extent in this plane (length, width) is many times greater than in a direction perpendicular to this plane (thickness).
- the Diaphragm spring has a restoring force perpendicular to its main extension plane.
- the holding plate may comprise a thermoplastic.
- the centering device may consist wholly or partly of a thermoplastic.
- the spring elements may consist of a thermoplastic.
- a thermoplastic is to be understood as meaning a thermoplastic which is not a thermoplastic elastomer.
- the thermoplastic may be, for example, polyethylene terephthalate (PET), polycarbonate (PC), hard polyvinyl chloride (rigid PVC), polypropylene (PP), polyethylene (PE) or polyactate (PLA).
- the thermoplastic may be a recycled plastic, such as recycled PET (rPET) or recycled PP (rPP). As a result, the environmental compatibility of the holding plate can be improved.
- the holding plate can be made by thermoforming or deep drawing. Also, a production by injection molding is possible.
- the invention further provides a vacuum cleaner filter bag according to claim 11, comprising a bag wall and one of the holding plates described above.
- the retaining plate may thus have one or more of the features described above.
- the bag wall of the vacuum cleaner filter bag may comprise one or more filter material layers, in particular one or more nonwoven fabric layers.
- Vacuum cleaner filter bags with such a bag wall of a plurality of filter material layers are known, for example, from EP 2 01 1 556 or EP 0 960 645.
- a material for the nonwoven fabric layers a wide variety of plastics can be used, for example polypropylene and / or polyester.
- the position of the bag wall to be connected to the holding plate may be a nonwoven layer.
- the bag wall of the vacuum cleaner filter bag may also comprise or consist of recycled plastics.
- the bag wall can be designed as described in EP 3 219 376 A1.
- nonwoven fabric is used according to the definition according to ISO standard ISO9092: 1988 or CEM standard EN29092.
- nonwoven fabric or nonwoven fabric and nonwoven fabric in the field of production of nonwoven fabrics are delimited from one another as follows and also to be understood in the sense of the present invention.
- To produce a nonwoven fabric fibers and / or filaments are used.
- the loose or loose and still unbonded fibers and / or filaments are referred to as nonwoven or nonwoven web.
- nonwoven binding step such a nonwoven fabric finally forms a nonwoven which has sufficient strength to be wound into rolls, for example.
- a nonwoven fabric is self-supporting by the solidification.
- the bag wall may have a discharge opening, in particular wherein the passage opening of the bag wall is arranged in alignment with the passage opening of the base plate.
- An inflow opening through which the air to be purified can flow into the interior of the vacuum cleaner filter bag can be formed through the passage opening in the baseplate and the outlet openings in the bag wall.
- the vacuum cleaner filter bag may additionally comprise one or more sealing elements which supplement the sealing effect of the centering device.
- the sealing elements can be arranged in the bag and / or between the bag and the holding plate and / or on the holding plate.
- the sealing elements may be made of rubber, and / or of TPE and / or of the material of the vacuum cleaner filter bag. But they can also consist of any other material, which have sufficient elasticity for the necessary sealing effect.
- the invention further provides a vacuum cleaner bag according to claim 12, comprising a bag wall, at least one sealing element, and a retaining plate.
- the holding plate comprises a base plate, in which a passage opening is formed, and a centering device which extends at least partially along the edge of the passage opening and comprises at least a first spring element. The spring element upon deformation in the radial direction of a deformation of the opposing restoring force.
- the at least one sealing element is not part of the retaining plate, but a separate component.
- the at least one sealing element can be arranged in the bag and / or between the bag and the holding plate.
- the bag wall, the sealing element and the centering device can each have one or more of the features described above.
- Figure 1 a - 1 c schematically shows a conventional holding plate with vacuum cleaner nozzle in the reference position in plan view (a), and in the reference position (b) and under load in a radial direction (c) in sectional view;
- Figure 2 schematically shows the structure of an exemplary vacuum cleaner filter bag
- Figure 3 is a schematic representation of an exemplary holding plate in plan view
- Figure 4a and 4b is a schematic representation of an exemplary holding plate in
- FIGS. 5a-5c profiles of exemplary centering devices.
- FIG. 1 a shows schematically a conventional holding plate 1 with a passage opening 2 and a sealing element 3 attached to the holding plate 1 in plan view.
- a vacuum cleaner 4 is inserted in the passage opening 2 in the passage opening 2.
- FIG. 1 b the holding plate 1 is shown with vacuum cleaner 4 in the reference position in a sectional view. It can be seen that the sealing element 3 completes the vacuum cleaner 4 completely.
- Figure 1 c shows the holding plate 1 with inserted vacuum cleaner 4 after a shift in the radial direction, for example, due to the weight of taken in a vacuum cleaner bag suction, which is illustrated by the downward arrow.
- a gap 5 has formed between the sealing element 3 and the vacuum cleaner nozzle 4, through which dust can escape from the vacuum cleaner bag into the interior of the vacuum cleaner.
- FIG. 2 shows the schematic structure of an exemplary vacuum cleaner filter bag.
- the filter bag comprises a bag wall 6, a holding plate 7 and an inflow opening, through which the air to be filtered flows into the filter bag.
- the inflow opening is formed here by a passage opening 8 in the base plate of the holding plate 7 and a passage opening arranged in the bag wall 6 in alignment therewith.
- the holding plate 7 serves to fix the vacuum cleaner filter bag in a corresponding holder in a housing of a vacuum cleaner.
- the bag wall 6 comprises at least one nonwoven fabric layer, for example of a melt-spun fine fiber spunbonded nonwoven fabric (meltblown nonwoven fabric) or a spunbonded nonwoven spunbonded nonwoven fabric.
- the holding plate 7 comprises a base plate made of a thermoplastic material.
- recycled engineered material such as recycled polypropylene (rPP) or recycled polyethylene terephthalate (rPET) may be used for the baseplate.
- FIG. 7 A plan view of an exemplary holding plate that may be used in conjunction with a filter bag as shown in FIG. 2 is shown in FIG. This is the holding plate 7 with through opening 8 can be seen.
- the base plate of the holding plate 7 is here shown schematically rectangular, but may have any shapes that may correspond in particular with the corresponding holding device in the vacuum cleaner housing.
- FIG. 3 shows a Zentriervorrichtu ng 9 as part of the holding plate 7.
- the centering device 9 is shown here as formed integrally with the base plate of the holding plate 7, but it may also be a separate element which, for example, by gluing and / or welding to the holding plate 7 is connected.
- the centering device extends completely around the circumference of the passage opening 8 around, but it may also be limited to a part of the circumference.
- the centering device 9 comprises in Figure 3, four spring elements 10, 1 1, 12, 13, which are separated by cuts 14 from each other.
- the centering device 9 may also include a base plate on which the spring elements are attached, for example, by gluing, screwing or welding.
- the spring elements may be separate elements which are spaced from each other, in particular they may be spaced apart in the circumferential direction of the passage opening 8. The distances between the spring elements can be the same size or different.
- the number of spring elements is not limited to four, but the centering device 9 always comprises at least one spring element.
- the spring elements 10, 1 1, 12, 13 are formed by deformed portions of the holding plate 7.
- the deformed regions are formed by alternating elevations and / or depressions, wherein additionally planar regions can be arranged between the elevations and / or depressions. In particular, it repeats itself the sequence of deformations periodically; In this case, in each case one period forms a shaft 15.
- the deformed regions are formed by alternating elevations and depressions, an elevation and an adjacent depression each represent a shaft 15.
- the spring elements 10, 1 1, 12, 13 each comprise four shafts 15. However, the spring elements may have any number of shafts 15.
- the shafts 15 form concentric ring structures around the passage opening 8.
- Figure 3 also shows that the arrangement of the spring elements 10, 1 1, 12, 13 with respect to the passage opening 8 has no rotational symmetry.
- the spring element 10 is larger than the spring elements 1 1, 12 and 13.
- the spring force of the spring element 10 is also greater than that of the spring elements 1 1, 12 and 13.
- the arrangement of the spring elements can also have an n-fold rotational symmetry with respect to the passage opening 8, wherein n is an integer greater than 1. This is advantageous, for example, if there is no main load direction in the operation of the vacuum cleaner, which lies in the plane of the holding plate 7. This may in particular be the case when the axis of the vacuum cleaner nozzle 4 is substantially parallel to the direction of gravity during operation.
- FIGS. 4a and 4b show, analogously to FIGS. 1b and 1c, a schematic sectional view through the exemplary holding plate 7 with an introduced vacuum cleaner neck 4.
- FIGS. 4a and 4b also show a sealing element 16 which is located on the inside of the holding plate 7 is appropriate.
- the illustrated sealing element 16 is attached to a spring element, which may be advantageous to save material.
- the sealing element 16 may also be attached to undeformed areas of the retaining plate 7.
- the sealing element 16 in plan view, the spring elements completely cover even in the radial direction. This is advantageous, for example, when the spring elements are separated from one another by cuts 14.
- the sealing element 16 may also be mounted on the outside of the retaining plate 7.
- the sealing element 16 may comprise or consist of a thermoplastic elastomer, for example based on polypropylene.
- the sealing element 16 is intended to prevent or limit the escape of dust from the vacuum cleaner filter bag by sealing the area between the inner edge of the passage opening 8 and the outside of a connecting piece of the vacuum cleaner.
- the sealing lip shown here is only optional. It is also conceivable that the bag material of the vacuum cleaner filter bag itself is used as a sealing ring, as disclosed for example in DE 102 03 460. The use of a sealing membrane between the holding plate 7 and the bag wall 6, as disclosed in EP 2 044 874, is also possible.
- FIG 4a shows the holding plate 7 and the vacuum cleaner 4 in the reference position. It can be seen that the sealing element 16 completes the vacuum cleaner 4 completely.
- FIG. 4b shows that the holding plate 7 and the vacuum cleaner 4 are under the influence of a, illustrated by the arrow, force to be seen, which corresponds to that force acting on the support plate 1 in Figure 1 c.
- FIG. 4b shows that the spring element 10 is deformed with respect to FIG. 4a. Due to this deformation, it exerts a restoring force, which is opposite to the acting force.
- the displacement of the plate 7 and the resulting deformation of the sealing element 16 is less than in the case illustrated in Figure 1c, although the acting force is the same. Therefore, no, or a smaller, gap between the sealing element 16 and the vacuum cleaner neck 4 is formed. In other words, the sealing properties of the sealing element 16 are improved by the force acting in the radial direction.
- FIG. 5 shows possible embodiments of the spring elements 10, 1 1, 12, 13 in profile.
- the corrugations 15 can be formed, for example, by alternating U-shaped elevations and flat areas, as shown in FIG. 5a. Alternatively, they may be formed by alternating U-shaped protrusions and U-shaped depressions, as shown in Figure 5b. In this case, the entire shaft has an S-profile.
- Figure 5c shows an embodiment in which V-shaped elevations and depressions alternate. However, it is also possible to combine U- and V-shaped elevations with each other and / or flat areas. The elevations and / or depressions do not have to be pointed or round, but may be flattened at their respective ends. It is understood that in the embodiments described above mentioned features are not limited to these specific combinations and also possible in any other combinations. Furthermore, it is understood that geometries shown in the figures are only exemplary and are also possible in any other embodiments.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/969,916 US20210361133A1 (en) | 2018-02-23 | 2019-02-22 | Retaining plate with centering device |
AU2019225973A AU2019225973B2 (en) | 2018-02-23 | 2019-02-22 | Retainer plate with a centering device |
CN201980014240.8A CN111741704B (zh) | 2018-02-23 | 2019-02-22 | 具有对中装置的固定板 |
RU2020126661A RU2753550C1 (ru) | 2018-02-23 | 2019-02-22 | Удерживающая пластина с центрирующим устройством |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18158368.3 | 2018-02-23 | ||
EP18158368.3A EP3530170B1 (de) | 2018-02-23 | 2018-02-23 | Halteplatte mit zentriervorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019162424A1 true WO2019162424A1 (de) | 2019-08-29 |
Family
ID=61274167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/054412 WO2019162424A1 (de) | 2018-02-23 | 2019-02-22 | Halteplatte mit zentriervorrichtung |
Country Status (9)
Country | Link |
---|---|
US (1) | US20210361133A1 (de) |
EP (1) | EP3530170B1 (de) |
CN (1) | CN111741704B (de) |
AU (1) | AU2019225973B2 (de) |
DK (1) | DK3530170T3 (de) |
ES (1) | ES2798434T3 (de) |
PL (1) | PL3530170T3 (de) |
RU (1) | RU2753550C1 (de) |
WO (1) | WO2019162424A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111345730B (zh) * | 2020-03-10 | 2021-06-01 | 宁波佰睿特电器有限公司 | 一种棉絮分离方便的吸尘器 |
DE102020128162A1 (de) | 2020-10-27 | 2022-04-28 | Alfred Kärcher SE & Co. KG | Sauggerät und Filterbeutel |
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DE1301881B (de) * | 1966-07-13 | 1969-08-28 | Cons Foods Corp | Zum einmaligen Gebrauch bestimmter Staubbeutel fuer Staubsauger |
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2018
- 2018-02-23 DK DK18158368.3T patent/DK3530170T3/da active
- 2018-02-23 EP EP18158368.3A patent/EP3530170B1/de active Active
- 2018-02-23 PL PL18158368T patent/PL3530170T3/pl unknown
- 2018-02-23 ES ES18158368T patent/ES2798434T3/es active Active
-
2019
- 2019-02-22 WO PCT/EP2019/054412 patent/WO2019162424A1/de active Application Filing
- 2019-02-22 RU RU2020126661A patent/RU2753550C1/ru active
- 2019-02-22 US US16/969,916 patent/US20210361133A1/en active Pending
- 2019-02-22 CN CN201980014240.8A patent/CN111741704B/zh active Active
- 2019-02-22 AU AU2019225973A patent/AU2019225973B2/en active Active
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AU2019225973B2 (en) | 2022-03-10 |
US20210361133A1 (en) | 2021-11-25 |
AU2019225973A1 (en) | 2020-08-27 |
RU2753550C1 (ru) | 2021-08-17 |
CN111741704A (zh) | 2020-10-02 |
CN111741704B (zh) | 2022-02-11 |
DK3530170T3 (da) | 2020-07-06 |
EP3530170A1 (de) | 2019-08-28 |
ES2798434T3 (es) | 2020-12-11 |
PL3530170T3 (pl) | 2020-11-02 |
EP3530170B1 (de) | 2020-05-13 |
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