EP4133983A1 - Sac à poussière - Google Patents

Sac à poussière Download PDF

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Publication number
EP4133983A1
EP4133983A1 EP22187236.9A EP22187236A EP4133983A1 EP 4133983 A1 EP4133983 A1 EP 4133983A1 EP 22187236 A EP22187236 A EP 22187236A EP 4133983 A1 EP4133983 A1 EP 4133983A1
Authority
EP
European Patent Office
Prior art keywords
dust
inlet opening
vacuum cleaner
bag
dust bag
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
EP22187236.9A
Other languages
German (de)
English (en)
Other versions
EP4133983B1 (fr
Inventor
David Buhl
Michael Agethen
Stefan Kreimeyer
Christin Schneider
Kay Van Gen Hassend
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.)
Miele und Cie KG
Original Assignee
Miele und Cie 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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4133983A1 publication Critical patent/EP4133983A1/fr
Application granted granted Critical
Publication of EP4133983B1 publication Critical patent/EP4133983B1/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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1427—Means for mounting or attaching bags or filtering receptacles in suction cleaners; Adapters
    • A47L9/1436—Connecting plates, e.g. collars, end closures

Definitions

  • the invention relates to a dust bag for a vacuum cleaner with a holding device for fastening in a dust chamber of the vacuum cleaner, with an inlet opening for receiving a dust-laden air flow of the vacuum cleaner being embedded in the holding device, with a filter bag made of an air-permeable material open to the inlet opening on the holding device is arranged, wherein the material of the filter bag is designed to filter the dust from the air flow when the air flow passes through.
  • Vacuum cleaners with dust bags are used in private households and in industry to clean surfaces such as textile floor coverings and smooth floors.
  • the floor surface can be covered by a textile floor covering such as a rug or carpeting or by a hard floor such as e.g. B. a wooden parquet, laminate or PVC flooring can be formed.
  • a vacuum cleaner has a fan for generating a negative pressure, through which a floor nozzle guided over a floor surface to be cleaned picks up dust and dirt from the floor surface.
  • the user moves the floor nozzle back and forth in the working direction by means of pushing and pulling movements. As a result, the floor nozzle slides over the floor surface to be cleaned.
  • the underside of the floor nozzle slides over the carpet, while in the case of smooth floors the underside floats over these floor surfaces at a distance, possibly using spacer bristles.
  • the user can, for example, manipulate a vacuum cleaner handle connected to the suction tube.
  • the vacuum cleaner can also be designed as an independently moving vacuum cleaner, in particular a vacuum robot, so that the working direction of the floor nozzle corresponds to the direction of travel of the independently moving vacuum cleaner.
  • a dust bag for a vacuum cleaner usually includes a holding plate for fastening in a dust chamber of the vacuum cleaner, with an inlet opening for receiving a dust-laden air flow of the vacuum cleaner being let into the holding plate, with a filter bag made of an air-permeable material, which is open to the inlet opening, being arranged on the holding plate is, the material of the filter bag being designed to filter the dust out of the air flow when the air flow passes through.
  • the inlet opening embedded in the holding plate is provided with a flap, which closes the dust bag when it is removed from the dust compartment, so that dust collected in the filter bag cannot escape through the inlet opening.
  • the inlet opening is regularly provided with a seal, which pushes the dust bag toward an inlet connector of the inlet opening that dips into the inlet opening vacuum cleaner seals.
  • the holding plate regularly offers a handle with which the dust bag can be handled by the user when changing the bag.
  • the invention therefore faces the problem of specifying an improved dust bag.
  • the amount of waste should be reduced by changing the dust bag and handling when changing the dust bag should be simplified.
  • a dust bag having the features of patent claim 1 . Due to the fact that the holding device is designed as a docking element surrounding the inlet opening, with the docking element forming an undercut for fastening the dust bag in a vacuum cleaner, a particularly simply constructed dust bag can be created which offers a simple and secure fastening option in the dust chamber of a vacuum cleaner.
  • the dust bag can be fastened firmly and tightly to an inlet connector of the vacuum cleaner that dips into the inlet opening via the peripheral docking element. For this purpose, fastening elements of the vacuum cleaner can simply engage in the undercut on the peripheral docking element.
  • the simply constructed docking element which surrounds the inlet opening of the filter bag, can be securely positioned in the dust chamber.
  • the simple design of the holding device reduces the waste generated by the dust bag when changing the dust bag considerably.
  • the docking element preferably completely surrounds the inlet opening of the dust bag. In an alternative embodiment, however, it is also conceivable that the docking element only partially surrounds the inlet opening of the dust bag.
  • the holding device is preferably simply welded to the material of the filter bag.
  • the described holding device makes it possible to produce the entire dust bag, including the simple holding device, from a single type of material. For example, a polypropylene-based nonwoven fabric for the filter bag with a simple holding device, also made of polypropylene, is conceivable.
  • the dust bag and the holding device from a material based on natural fibers, such as paper or cardboard.
  • the filter bag is made of paper and the holding device is made of cardboard.
  • the docking element is designed as a docking ring or as a docking ring segment. In the embodiment as a docking ring, this completely surrounds the inlet opening of the dust bag. In the embodiment as a docking ring segment, the inlet opening of the dust bag can also be only partially surrounded by the docking ring segment.
  • the undercut makes it possible to fix the holding device axially in the flow direction of the air flow through the inlet opening.
  • the holding device can be easily fixed axially in both directions of the air flow in the dust chamber of the vacuum cleaner.
  • particularly simply designed fastening elements of the vacuum cleaner can hold the holding device of the dust bag on the docking element in the dust chamber. This effectively prevents the simply constructed holding device from slipping in the dust compartment.
  • An embodiment is particularly preferred which provides that the undercut is formed on a socket formed by the docking element on the inlet opening so that it is accessible from the outside.
  • Fastening elements of the vacuum cleaner can very easily engage from the outside in the undercut on the connection piece of the docking element via the undercut accessible from the outside and securely position the connection piece with the inlet opening of the filter bag.
  • the dust bag is securely fixed in the dust chamber simply by fastening elements of the vacuum cleaner engaging the docking element from the outside and engaging in the undercut.
  • a particularly advantageous embodiment of the invention relates to the fact that the undercut is formed in a socket formed by the docking element at the inlet opening so that it is accessible from the inside.
  • fastening elements of the vacuum cleaner can engage from the inside in the undercut on the connection piece of the docking element in a very space-saving manner and securely position the connection piece with the inlet opening of the filter bag.
  • the dust bag is securely fixed in the dust chamber simply by means of fastening elements of the vacuum cleaner which act on the docking element from the inside and engage in the undercut.
  • a particularly advantageous embodiment of the invention therefore provides that the docking element has anti-twist protection.
  • the twist protection can be used to ensure that the preferably rotationally symmetrical docking element does not twist in the fastening elements of the vacuum cleaner.
  • an advantageous embodiment of the invention provides that the anti-twist protection is formed by a semicircular indentation.
  • the semicircular indentation provides particularly simple anti-twist protection for the docking element.
  • the fastening elements of the vacuum cleaner advantageously have a projection which engages in the semicircular indentation. The docking element can thus be effectively secured against twisting when it is received in the fastening elements of the vacuum cleaner, so that the dust bag remains optimally positioned in the dust compartment of the vacuum cleaner.
  • An embodiment which provides that the docking ring is composed of two partial rings forming the undercut is particularly advantageous.
  • a particularly simple production of the undercut, in particular by injection molding, preferably from plastic, is possible via the two partial rings forming the undercut.
  • the two partial rings can be demolded particularly easily from a very simply constructed injection mold.
  • An advantageous embodiment of the invention provides that the ring parts are connected via a film hinge, with the film hinge positioning the ring parts appropriately for folding the docking ring together.
  • the two partial rings of the docking ring, connected via the film hinge can be produced via the film hinge in an injection molding process in an injection mold using the injection molding process, preferably from plastic.
  • the partial rings then simply have to be folded together and pushed together in just one assembly step on the film hinge to form the undercut in the docking ring. Since the partial rings are already positioned to match one another via the film hinge, the assembly step can also be taken over by a simple machine, so that a high degree of automation is achieved in the production of the dust bag.
  • the inlet opening is formed by at least one slit-shaped incision in the material of the filter bag.
  • the slit-shaped incision in the material of the filter bag replaces the flat punching out of the filter bag material to create the inlet opening.
  • a flat inlet opening in filter bags is nowadays usually closed by a flap on the holding device surrounding the inlet opening, such a flap can be dispensed with in the dust bag according to the invention.
  • the slot-shaped incision can be made through the docking ring of the holding device Push the vacuum cleaner inlet nozzle into the filter bag so that the dust-laden air flow from the vacuum cleaner can be directed into the dust bag.
  • the inlet nozzle of the vacuum cleaner When changing a full dust bag, the inlet nozzle of the vacuum cleaner is removed from the dust bag. A flap then usually closes the flat inlet opening so that no dust can escape when handling the full dust bag.
  • This type of complicated hygienic closure can be dispensed with with the slit-shaped incision in the material of the dust bag.
  • the material of the filter bag surrounding the slit of the inlet opening slides back when it leaves the inlet connection and again closes the slit of the inlet opening to such an extent that dust can be effectively prevented from escaping with these simple means.
  • the incision in the material of the filter bag for the inlet opening is U-shaped, cross-shaped, star-shaped, straight or circular.
  • the inlet opening should therefore not be completely punched out in a circle, as is usual with today's dust bags, but should preferably be cut as a U-shaped slit in the material of the filter bag.
  • other shapes are also possible, which can effectively prevent the escape of dust from the inlet opening and still allow the inlet connection piece of the vacuum cleaner to be easily immersed.
  • FIG. 1 a dust bag is shown purely schematically.
  • the representation according to figure 1 shows a dust bag 1 according to the invention for a vacuum cleaner with a holding device 2 for attachment in a dust compartment of the vacuum cleaner.
  • the holding device 2 surrounds an inlet opening 3 for receiving an air flow 4 laden with dust from the vacuum cleaner. This means that the inlet opening 3 is let into the holding device 2 .
  • a filter bag 5 open to the inlet opening 3 connects to the holding device 2 .
  • This filter bag 5 is made of an air-permeable.
  • the filter bag 5 is preferably welded to the holding device 2 around the inlet opening 3 .
  • the material of the filter bag 5 is designed to filter the dust out of the air flow 4 when the air flow 4 is allowed to pass through.
  • the holding device 2 is designed as a docking ring 6 surrounding the inlet opening 3 .
  • This docking ring 6 forms an undercut 7, which is used to attach the dust bag 1 in a vacuum cleaner.
  • a dust bag 1 of particularly simple construction can be created which offers a simple and secure fastening option in the dust compartment of a vacuum cleaner.
  • the peripheral docking ring 6 enables the dust bag 1 to be fastened firmly and tightly to an inlet connection piece of the vacuum cleaner which dips into the inlet opening 3 .
  • the inlet opening 3 is also formed by a slit-shaped incision 13 in the material of the filter bag 5 .
  • This slit-shaped incision 13 in the material of the filter bag 5 replaces a conventional two-dimensional punching out of the filter bag material to produce the inlet opening 3.
  • the inlet connector of the vacuum cleaner which is guided through the docking ring 6 of the holding device 2, can penetrate through the slit-shaped incision 13 into the filter bag 5, so that the dust-laden air flow 4 of the vacuum cleaner can be directed into the dust bag 1. If the full dust bag 1 is changed, the vacuum cleaner's inlet socket is removed from the dust bag 1, and the material of the filter bag 5 surrounding the slot 13 of the inlet opening 3 slips back when it leaves the inlet socket and largely closes the slot 13 of the inlet opening 3 again, so that dust escape can be effectively prevented with these simple means.
  • the incision 13 in the material of the filter bag 5 is straight.
  • the incision 13 can also be U-shaped, cross-shaped, star-shaped or circular.
  • the inlet opening 3 is not flat, but cut into the material of the filter bag 5 like a slit.
  • the figure 2 shows a detailed view of the holding device according to FIG figure 1 .
  • the undercut 7, which makes the holding device 2 fixable axially in the flow direction of the air flow 4 through the inlet opening 3, can be seen better.
  • the undercut 7 is formed on the inlet opening 3 so that it is accessible from the inside in a socket 8 formed by the docking ring 6 .
  • the undercut 7, which is accessible from the inside, allows fastening elements of the vacuum cleaner to engage from the inside in the undercut 7 on the socket 8 of the docking ring 6 in a very space-saving manner.
  • the docking ring 6 of the holding device 2 can be effectively secured against twisting when it is received in the fastening elements of the vacuum cleaner. So the dust bag 1 ( 1 ) remain optimally positioned in the dust compartment of the vacuum cleaner via the fastening elements of the vacuum cleaner.
  • FIG 3 is the holding device 2 according to figure 2 shown in the unfolded state.
  • the docking ring 6 ( 2 ) from two the undercut 7 ( 2 ) forming partial rings 10, 11 is composed.
  • the two partial rings 10, 11 are connected to one another via a film hinge 12.
  • the partial rings 10, 11 for folding the docking ring 6 ( 2 ) appropriately positioned.
  • the partial rings 10, 11 can be produced by injection molding, preferably from plastic.
  • the formation of the undercut 7 from the two partial rings 10, 11 enables an injection mold of particularly simple design, from which the partial rings 10, 11 can be demolded particularly easily.
  • the two partial rings 10, 11 can then be easily attached to the film hinge 12 in one assembly step to form the undercut 7 ( 2 ) in docking ring 6 ( 2 ) fold and squeeze.
  • the connection between the partial rings 10, 11 can be done by gluing, screwing, hot caulking, riveting, latching or preferably welding, so that a form-fitting retaining plate assembly is formed. Due to the fact that the partial rings 10, 11 are already positioned to match one another via the film hinge 12, the assembly step can also be automated by a machine.
  • FIG 4 a further embodiment of a dust bag 1 according to the invention is shown.
  • the execution according to figure 4 differs from the execution according to figure 1 in that the undercut 7 is formed here on the inlet opening 3 on the connecting piece 8 formed by the docking ring 6 so that it is accessible from the outside.
  • This dust bag 1 also has a holding device 2 for attachment in a dust compartment of the vacuum cleaner.
  • this holding device 2 surrounds the inlet opening 3 for receiving a dust-laden air flow 4 of the vacuum cleaner. This means that the inlet opening 3 is also let into the holding device 2 .
  • the holding device 2 is adjoined by a filter bag 5 which is open towards the inlet opening 3 .
  • This filter bag 5 is also made of an air-permeable material.
  • the filter bag 5 is welded to the holding device 2, preferably around the inlet opening 3.
  • the filter bag 5 is welded together from a material that filters the dust out of the air flow 4 when the air flow 4 passes through.
  • the filter bag 5 is designed as a gusseted bag.
  • the holding device 2 is also designed according to the invention as a docking ring 6 running around the inlet opening 3 .
  • the docking ring 6 forms an undercut 7, which is used to attach the dust bag 1 in a vacuum cleaner. This results in a dust bag 1 of particularly simple construction, which enables a simple and secure fastening option in the dust compartment of a vacuum cleaner.
  • the dust bag 1 can be fastened firmly and tightly very easily to an inlet connection piece of the vacuum cleaner that dips into the inlet opening 3 via the peripheral docking ring 6 .
  • the inlet port 3 is in figure 4 also formed by a cross-slit-shaped incision 13 in the material of the filter bag 5.
  • This cross-slot-shaped incision 13 in the material of the filter bag 5 replaces the usual two-dimensional punching out of the filter bag material to produce the inlet opening 3.
  • the cross-slit-shaped incision 13 can be used to easily insert the inlet connection of the vacuum cleaner, which is guided through the docking ring 6 of the holding device 2, into the filter bag 5 of the Anther 1 advance. This allows the dust-laden air flow of the vacuum cleaner to be directed into the dust bag 1.
  • the full dust bag 1 can be changed when the vacuum cleaner's inlet socket is removed from the dust bag 1.
  • the material of the filter bag 5 forming the cross slot 13 of the inlet opening 3 folds back when it leaves the inlet socket and largely closes the cross slot 13 of the inlet opening 3, so that dust can be effectively prevented from escaping with very simple means.
  • the figure 5 shows a detailed view of the holding device 2 according to FIG figure 4 .
  • This view shows the undercut 7 in the docking ring 6 more clearly.
  • the holding device 2 can be fixed axially in the flow direction of the air flow 4 through the inlet opening 3 via this undercut 7 .
  • the undercut 7 is formed on the inlet opening 3 and is accessible from the outside on a connecting piece 8 formed by the docking ring 6 .
  • This undercut 7, which is accessible from the outside, makes it possible for the fastening elements of the vacuum cleaner to easily engage in the undercut 7 on the connecting piece 8 of the docking ring 6 from the outside.
  • the socket 8 can be connected to the inlet opening 3 of the filter bag 5 ( 4 ) easily and safely in the dust compartment of the dust bag 1 ( 4 ) equipped vacuum cleaner can be positioned.
  • the representation in figure 5 shows that the anti-rotation device 9 on the docking ring 6, which as a semi-circular Indentation is formed, is accessible from the outside.
  • the fastening elements of the vacuum cleaner can thus engage in the semicircular indentation 9 with a projection from the outside.
  • the docking ring 6 of the holding device 2 can be securely secured against twisting when it is received in the fastening elements of the vacuum cleaner. This allows the dust bag 1 ( 4 ) remain optimally positioned in the dust chamber of the vacuum cleaner via the fastening elements.
  • FIG 6 is the holding device according to figure 5 shown in the unfolded state. It can be seen here that the docking ring 6 ( figure 5 ) also from two the undercut 7 ( figure 5 ) forming partial rings 10, 11 is composed. These two partial rings 10, 11 can be folded together via a film hinge 12. The film hinge 12 positions the partial rings 10, 11 for folding the docking ring 6 ( figure 5 ) already suitable. This allows the partial rings 10, 11 to be particularly easy to form the undercut 7 ( figure 5 ) forming docking ring 6 ( figure 5 ) connect to each other. The production of the undercut 7 ( figure 5 ) is so through the two the undercut 7 ( figure 5 ) forming partial rings 10, 11 particularly easy. These partial rings 10, 11 can easily be produced by injection molding, preferably from plastic.
  • the two partial rings 10, 11 enable an injection mold of particularly simple construction.
  • the partial rings 10, 11 can be removed from the mold particularly easily from this mold. Thanks to the film hinge 12, the two partial rings 10, 11 of the docking ring 6 ( figure 5 ) as a component in an injection process in an injection mold using the injection molding process, preferably made of plastic.
  • the two partial rings 10, 11 connected via the film hinge 12 can then be easily assembled in one assembly step to form the undercut 7 ( figure 5 ) in docking ring 6 ( figure 5 ) on the film hinge 12 are folded and compressed. Due to the fact that the partial rings 10, 11 are already positioned to match one another via the film hinge 12, the assembly step can also be carried out automatically by a simple robot.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP22187236.9A 2021-08-13 2022-07-27 Sac à poussière Active EP4133983B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021121083.6A DE102021121083A1 (de) 2021-08-13 2021-08-13 Staubbeutel

Publications (2)

Publication Number Publication Date
EP4133983A1 true EP4133983A1 (fr) 2023-02-15
EP4133983B1 EP4133983B1 (fr) 2024-06-26

Family

ID=82748419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22187236.9A Active EP4133983B1 (fr) 2021-08-13 2022-07-27 Sac à poussière

Country Status (2)

Country Link
EP (1) EP4133983B1 (fr)
DE (1) DE102021121083A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69029843T2 (de) * 1989-07-11 1997-06-19 Scott & Fetzer Co Staubsauger mit speziellem anschluss fuer wegwerfstaubsack
DE69822894T2 (de) * 1997-01-23 2005-03-03 The Scott Fetzer Co., Westlake Staubsaugerbeutel
ITVI20120079A1 (it) * 2012-04-04 2013-10-05 Ametera S R L Sacco permeabile all'aria e piastra di raccordo per detto sacco e gruppo separatore di polvere perfezionato per aspirapolvere utilizzante detto sacco e detta piastra

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69029843T2 (de) * 1989-07-11 1997-06-19 Scott & Fetzer Co Staubsauger mit speziellem anschluss fuer wegwerfstaubsack
DE69822894T2 (de) * 1997-01-23 2005-03-03 The Scott Fetzer Co., Westlake Staubsaugerbeutel
ITVI20120079A1 (it) * 2012-04-04 2013-10-05 Ametera S R L Sacco permeabile all'aria e piastra di raccordo per detto sacco e gruppo separatore di polvere perfezionato per aspirapolvere utilizzante detto sacco e detta piastra

Also Published As

Publication number Publication date
EP4133983B1 (fr) 2024-06-26
DE102021121083A1 (de) 2023-02-16

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