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

Definitions

• the invention relates to a guide device for guiding an air flow into an inlet opening provided in the filter material of a vacuum cleaner filter bag and to a vacuum cleaner filter bag comprising such a guide device.
• a vacuum cleaner filter bag is placed in the vacuum cleaner housing.
• Such vacuum cleaner bags have a holding plate, which are fastened to the filter bag in the region of an inlet opening provided in the filter material of the vacuum cleaner filter bag.
• a holding device in the vacuum cleaner housing serves to support the holding plate of the filter bag and thus also the filter bag itself.
• a vacuum cleaner nozzle After inserting a filter bag and closing the housing, a vacuum cleaner nozzle generally engages in a passage opening of the holding plate or in the inlet opening in the filter material.
• the vacuum cleaner nozzle is usually connected to a vacuum cleaner hose, so that air sucked in via the vacuum cleaner hose and the nozzle and charged with dust is fed into the bag.
• the shape of the vacuum cleaner filter bag must be designed such that it fits in particular in the interior of the vacuum cleaner housing. Since vacuum cleaner filter bags are usually sold in a collapsed form, they are often still used in partially collapsed state in the vacuum cleaner housing. For this reason, the geometry and dimensioning of the vacuum cleaner bag and the arrangement of the inlet opening and the holding plate must be designed such that the bag unfolds and inflates in a suitable manner, especially at the first start-up, to absorb the particle-laden air flow and deposited dust in its interior to store.
• Filter media which consist only of nonwoven fabric layers, can not or only very badly process into block bottom bags.
• nonwoven filter media have the advantage that they can achieve particularly good filter properties of the resulting vacuum cleaner filter bag.
• Deratige filter materials as described for example in EP 0 960 645, have a high dust storage capacity with a long service life.
• the object underlying the invention is therefore to provide a means so that vacuum cleaner filter bags, in particular from any filter media, can be made available for a wide variety of types of vacuum cleaners.
• a guide device for guiding an air flow into an inlet opening provided in the filter material of a vacuum cleaner filter bag, comprising a hollow body for guiding the air flow from an inlet opening of the hollow body to an outlet opening of the hollow body, wherein the hollow body can be connected to the vacuum cleaner filter bag such that one of the Outlet opening exiting air flow through the inlet opening into the vacuum cleaner filter bag enters, and the inlet opening is arranged in a first plane and the outlet opening is arranged in a second plane, wherein the first and the second plane are inclined by a predetermined angle to each other.
• Such a guide device makes it possible, in particular due to the mutually inclined inlet and outlet openings of the hollow body, the bag geometry substantially independent of the geometry of the vacuum cleaner interior and in particular the arrangement of the vacuum cleaner socket. A block bottom shape can be avoided, wherein the sucked air flow due to the guide device is nevertheless performed in a suitable manner in the vacuum cleaner filter bag.
• a guide device allows a vacuum cleaner filter bag to be arranged inside a vacuum cleaner housing in such a way that it is unfolded and inflated appropriately during the first start-up in order to obtain a desired intake of a dust-laden air stream.
• the filter material or filter medium is the material forming the bag wall, through which air sucked into the bag is filtered, so that particles entrained in the intake air flow are retained in the interior of the vacuum cleaner filter bag or in the filter material.
• the hollow body thus an air channel is formed, through which the air flow is guided.
• the hollow body may be formed such that an incoming air flow, in particular a perpendicular to the plane of the inlet opening entering air flow, is deflected by the hollow body or not.
• Distractable means that the air flow in the plane of the inlet opening differs from the air flow plane in the plane of the outlet opening.
• the guide device is thus formed connectable to the vacuum cleaner filter bag.
• it may be designed such that it can be connected to the vacuum cleaner filter bag around the inlet opening.
• the guide device can be designed such that it can be brought into engagement with a vacuum cleaner nozzle in the vacuum cleaner housing and / or can be held in a vacuum cleaner housing.
• the inner wall and / or the outer wall of the hollow body may be formed with respect to the coordinate perpendicular to the first or second plane straight or curved. This means that the derivative of the surface forming the inner wall or outer wall with respect to the coordinate perpendicular to the first or second plane in this coordinate is constant or variable. In the case of a straight inner wall or outer wall (constant discharge), this can in particular be perpendicular to the corresponding plane.
• the hollow body of the guide devices described above may be rigid or flexible.
• the hollow body of the above-described guide devices may in particular comprise an obliquely cut hollow cylinder.
• the closed guide curves of the outer surface (outer wall) and the inner surface (inner wall) of the hollow cylinder may have any shape.
• these guide curves may have a circular shape, so that a circular hollow cylinder is obtained.
• the guide device can be produced in a particularly simple manner.
• a hollow body of the guide devices described above may be formed in particular collapsible. This is particularly advantageous in order to enable space-saving packaging, in particular also in combination with vacuum cleaner filter bags connected to the guide device.
• the hollow body may have folding lines for folding. This allows a simple production and a simple folding.
• the hollow body may be formed collapsible in the manner of a bellows.
• it may be designed in the manner of a bellows or concertina bass. In this way, also a simple collapse of the hollow body can be achieved.
• the above-described guide devices may further comprise a holding plate attachable to a holding device in the vacuum cleaner housing for holding the vacuum cleaner filter bag.
• a vacuum cleaner filter bag can advantageously be inserted into a vacuum cleaner housing by one of the guide devices described above.
• the holding plate can be arranged in particular at the inlet opening of the hollow body.
• the guide devices described above may include connection means for releasably connecting the guide device to the vacuum cleaner filter bag.
• This allows the guide device to be provided separately from a vacuum cleaner filter bag.
• vacuum cleaner filter bags which are basically suitable for several types of vacuum cleaner housings, in each case only before the use of a vacuum cleaner filter bag, the appropriate guide device must be connected to it.
• the manufacture and processing of dust Suction filter bags are simplified if the guide device is not yet connected during assembly.
• the connecting device can be arranged at the inlet opening or at the outlet opening of the hollow body.
• the connecting device may be formed separately or together with a holding plate.
• the connecting device can be designed in particular for forming a non-positive and / or a positive connection.
• the connection device can be designed to form a screw, wedge, pin, Velcro or snap connection.
• the connecting device may be designed to cooperate with a connecting counter device arranged on the vacuum cleaner filter bag. By the interaction of the connecting device and counter opposite device can thus connect the vacuum cleaner filter bag with the guide device.
• the connecting counter-device can in particular be non-detachably connected to the vacuum cleaner filter bag, in particular to the filter material.
• non-detachable is meant “non-destructively releasable”.
• an adhesive or welded connection is non-detachable, a screw connection, however, is solvable.
• the connecting device may have a snap element, in particular a snap hook.
• the snap element is a, in particular releasable, snap or locking connection can be formed.
• the snap element may in particular be designed to cooperate with a latching element of a counter connecting device, wherein the connecting counter device is connected to the filter material of the vacuum cleaner filter bag.
• the interaction of snap element and locking element a snap connection or latching connection is obtained.
• the locking element may be formed, for example in the form of an undercut.
• the locking element may also be formed by a portion of an edge or an edge of a connecting counter-device; while the snap hook is initially deflected when pushing over the edge, and the locking lug then snaps behind the edge.
• Such snap connection or locking connections allow a particularly simple type of connection between the guide device and vacuum cleaner filter bag.
• the snap element may in particular comprise an elastic spring element.
• the connecting device may have a latching element.
• the latching element may in particular be designed to cooperate with a snap element of a counter connecting device.
• the snap element may in particular be a snap hook.
• the locking element may in particular be an undercut or a portion of an edge or an edge of a connecting device.
• the connecting device may comprise a snap element and a latching element or only one of the two.
• the connecting device can also have a plurality of snap elements and / or latching elements.
• the connecting device of the guide devices described above may comprise a hinge arm for cooperation with a hinge counterpart, in particular comprising a breakthrough or an undercut, a counter connecting device, so that a hinge can be formed.
• a hinge is in particular solvable.
• the hinge arm can thus be stuck, for example, in the opening or the undercut, so that the hinge arm engages behind the opening or the undercut and a hinge is obtained; the pivot axis of the hinge may in particular run parallel to an air passage opening in the connecting device and / or an edge of the opening or of the undercut and / or perpendicular to the plugging direction. When pivoting, the hinge arm abuts an edge of the aperture or undercut.
• the hinge arm can be designed so that it can be inserted without touching the edges of the opening or the undercut.
• the dimensions of the hinge arm can thus be designed so that it is spaced when being inserted from the edges of the opening or undercut and is not guided by these. In order to it can also be inserted slightly inclined to the side, which simplifies the connection of connecting device and counter opposite device.
• the connecting device can be designed such that it is pressed against it after being connected to a connecting counter element.
• hinge arm and breakthrough or undercut
• the connecting device can be designed such that it is pressed against it after being connected to a connecting counter element.
• the connecting device may comprise at least one snap element or latching element as well as at least one hinge arm or a hinge counterpart, in particular comprising an opening or undercut, for connecting the connection device to a connection counter device, such that when the connection device and connection counter device are connected, these are pressed against one another.
• the connecting counter-device complementary to both a locking element or a snap element and a hinge counterpart, in particular comprising a breakthrough or an undercut, or a hinge arm.
• the connecting device of the guide device described above may comprise a plate in which a passage opening is provided for an air flow, wherein at least one snap element and / or at least one hinge arm in the form of a projection arranged on the plate are formed.
• the plate may have a peripheral edge and the snap element and / or the hinge arm may be arranged on the edge.
• the snap element and the hinge arm can be arranged on opposite sides of the edge.
• such an arrangement allows a simple connection of the connecting device with a connecting counter-device by the hinge arm engages behind a breakthrough or undercut and then by pivoting the guide device and thus the connecting device snaps the snap element, so that the connecting device is pressed against the connecting counter-device.
• the connecting device can rest against the connecting counter device under a bias voltage.
• the guide devices described above may further comprise a sealing element, in particular for sealing a passage opening.
• the sealing element may be arranged surrounding the outlet opening of the hollow body on the guide device. If the connecting device has a plate with a passage opening, the sealing element can in particular be arranged surrounding the passage opening on the plate.
• the sealing element may comprise a thermoplastic elastomer (TPE). The Shore hardness of the sealing element may be less than that of the connecting device and / or the counter connecting device.
• the hollow body, the connecting device and / or the sealing element may comprise a plastic, a nonwoven fabric, a paper, in particular cardboard, or a film.
• nonwoven is used in accordance with the definition of ISO standard ISO 9092: 1988 or CEN standard EN 29092.
• a nonwoven fabric may in particular be dry or wet laid or an extrusion nonwoven, in particular a meltblown (fastest spun microfiber nonwoven fabric) or a tensioned bond (filament spunbond nonwoven fabric).
• meltblown fastest spun microfiber nonwoven fabric
• tensioned bond filament spunbond nonwoven fabric.
• wet laid nonwovens and conventional wet laid paper is as defined above, as used by the International Association Serving the Nonwoven and Related Industries EDANA (www.edana.org). So, when we talk about paper here and in what follows, we mean (conventional) wet laid paper, which is excluded in the abovementioned definition of nonwovens.
• the hollow body, the connecting device, the retaining plate and / or the sealing element may be made of plastic.
• the hollow body and the connecting device and / or the retaining plate may be integrally formed, for example as an injection molded part.
• the entire guide device can be formed integrally, in particular made of plastic.
• the sealing element may be made by means of a 2K injection molding process.
• the invention further provides a vacuum cleaner filter bag comprising a filter material in which an air flow inlet port is provided and one of the previously described guide devices.
• the guide device may be non-releasably attached to the filter material.
• the guide device can be glued or welded to the filter material.
• the guide device may be releasably secured to the filter material.
• the vacuum cleaner filter bag may further comprise a connection counterpart means for releasably connecting the guide device with the filter material.
• the connecting counter-device may be non-releasably connected to the filter material. It can for example be glued or welded to the filter material.
• the connecting counter-device can be designed to form a frictional and / or a positive connection with the connecting device.
• the connecting counter-device can be designed to form a screw, wedge, pin, Velcro or snap connection.
• the connecting counter-device can be designed to cooperate with a connecting device arranged on the guide device.
• the connecting counterpart device can have a snap element, in particular a snap hook, which can be designed in particular for cooperation with a latching element arranged on the connecting device of the guide device.
• the snap element may comprise an elastic spring element.
• the connecting counter-device of the vacuum cleaner filter bag described above may comprise a latching element, which is in particular designed to cooperate with a snap element of the connecting device of the guide device.
• the connecting counterpart device of the vacuum cleaner filter bag described above may comprise a hinge arm for cooperation with a hinge counterpart, in particular comprising a breakthrough or an undercut, the connecting device of the guide device, so that a hinge can be formed.
• the connecting counter-device may hinge counterpart, in particular comprising a breakthrough or an undercut, which is in particular designed to cooperate with a hinge arm for forming a hinge.
• the filter material may be provided in the form of a flat bag, in particular with a side fold.
• a guide device as described above can be used in particular in flat bags, ie in bags without block bottom, in an advantageous manner.
• Figure 1 is a schematic cross-sectional view of an example of a vacuum cleaner filter bag with a guide device
• Figure 2 is a perspective view of an example of a connecting device for a guide device
• Figure 3 is a perspective view of an example of a counter connecting device
• Figure 4 shows an example of a guide device with a connecting device, which is connected to a connecting counter-device
• Figure 5 shows another example of a guide device with a connecting device, which is connected to a connecting counter-device
• FIG. 6 shows another example of a guiding device with a connecting device which is connected to a connecting counter-device.
• FIG. 1 schematically shows a cross section through a vacuum cleaner filter bag with a guide device.
• the vacuum cleaner filter bag comprises a filter material 11 in which an inlet opening 12 is provided.
• a filter material for example, a multi-layer filter medium may be provided, as described for example in EP 0 960 645.
• the filter material is in the form of a flat bag, ie it comprises an upper and a lower piece of filter material, which are superposed on each other along the edge.
• the filter materials along the edge may be welded together, so that circumferential welds 17 result.
• a guide device 13 is arranged at the inlet opening 12 in the filter material.
• the guide device 13 is directly connected to the filter material 11 non-detachably. This can be achieved for example by gluing or by ultrasonic welding.
• the guide device 13 has a hollow cylinder 14 with a circular base area, which has an inlet opening 15 and an outlet opening 16.
• the outlet opening 16 is attached to the filter material 11 surrounding the inlet opening 12, so that an air flow entering the hollow cylinder from the outlet opening 16 enters directly into the inlet opening 12 of the filter material.
• the hollow cylinder 14 is perpendicular to the plane (shown in phantom), which is defined by the inlet opening 15. Both the inner wall and the outer wall of the hollow cylinder are straight with respect to the coordinate perpendicular to this plane.
• a second plane (shown in dashed lines) is defined, which is inclined by a predetermined angle ⁇ with respect to the first plane.
• a holding plate 18 is arranged, with which the vacuum cleaner filter bag can be held by means of the guide device in the vacuum cleaner housing.
• flat bag (without block bottom) can be used in vacuum cleaners such as upright vacuum cleaner.
• this avoids that, due to a retaining plate arranged directly at the inlet opening of a filter bag, the vacuum cleaner bag receives a kink when it is inserted into the vacuum cleaner housing due to the geometry of the vacuum cleaner.
• the guide device is directly and non-detachably connected to the filter material.
• the guide device can also be releasably connected to the filter material, in that the guide device has a connection device which cooperates for detachable connection with a counterpart connection device provided on the filter material.
• connection device is shown schematically in FIG. 2 (without the rest of the guide device).
• the connecting device comprises a plate 21, in which a passage opening 22 is provided. In the view shown, the side of the connecting device that is connected to the connecting counter device is shown.
• the hollow body is arranged to the air line, which can be glued or welded, for example, with the plate.
• the plate 21 has a peripheral edge 23 on which a hinge arm 24 is arranged in the form of a projection.
• the hinge arm 24 is formed so that it can cooperate with a hinge counterpart.
• a snap element 25 is arranged, which is designed in the form of a snap hook with two latching noses. Except for the snap hook and the hinge arm of the edge region of the plate is flat.
• the connecting device also has two sealing elements 26 and 27, which are formed in the form of sealing rings.
• the sealing element 26 serves primarily to establish a firm connection between the connecting device and the counter connecting device, so that they do not slip against each other after being connected.
• the second sealing element 27 serves to seal the passage opening 21. In principle, it is also possible that only one of these sealing elements is provided.
• a connection device with such a sealing element can be produced for example by means of a 2K injection molding process.
• FIG. 3 shows a connecting counter-device which is complementary to the connecting device according to FIG. 2 and also has a plate 31 whose edge region is flat. In the plate, a passage opening 32 is provided for an air flow.
• This connecting counter-device is non-detachably connected to the filter material, surrounding the inlet opening, for example by gluing or welding.
• the plate 31 has a peripheral edge 33. On one side of the peripheral edge, an opening 34 is provided, with which the hinge arm 24 cooperates.
• the connecting device When connecting the connecting device and counter connecting device, the connecting device is inclined at an angle with respect to the connecting counter device and the hinge arm 24 is inserted into the aperture 34.
• a part of the hinge arm engages behind the peripheral edge 33 facing the edge of the opening.
• the Plate 21 is pivotable about this edge as a pivot axis, so that a hinge is formed.
• the hinge arm may be formed so that its circumference is smaller than the break-through opening by a predetermined amount so that it has a clearance when being inserted.
• a latching element 35 is provided on the opposite side of the peripheral edge 33.
• the locking element is formed by a portion of the edge, in which a recess is formed.
• the snap hook 25 touches the plate 31 and is deflected in a further pivoting in this direction until the locking lugs of the snap hook engage behind the locking element 35 and a snap connection is obtained.
• the connecting device and the counter connecting device can be designed such that they are pressed against each other in a latching of the snap hook due to a bias against each other, so that a secure connection is achieved.
• FIG. 4 shows the connection device and the connection counter device in a connected state.
• a hinge 41 is formed by the hinge arm 24 and the opening 34.
• the connecting device is arranged at the outlet opening of the hollow body. At the inlet opening may still be arranged a holding plate for holding the vacuum cleaner filter bag in a vacuum cleaner housing.
• the hollow cylinder and the connecting device can be formed in one piece, for example as an injection-molded part.
• the hollow cylinder shown may be rigid or flexible. It may in particular consist of an elastic material so that it is deformable.
• the hollow body can also have the shape of a bellows, which has fold lines like a bellows, so that it can be folded into a flat state.
• FIG. 5 shows a further example of a guide device.
• a connecting counter-device 31 is provided, which is glued to the filter material, for example.
• a holding plate 51 is arranged to hold the vacuum cleaner filter bag in the vacuum cleaner housing.
• the holding plate and the connecting device are formed as a common device.
• a snap hook 25 is arranged in the form of a long projection, which produces a snap connection with the counter connecting device.
• a hinge arm 24 is arranged in the form of a projection, which cooperates with the opening 34.
• FIG. 6 shows an example of a guide device.
• a counter connecting device 31 is provided, which is glued to the filter material, for example.
• a holding plate 51 is arranged at the inlet opening of the hollow cylinder.
• the snap hook of the connecting device is provided at the outlet opening of the hollow cylinder.
• the holding plate, the hollow cylinder and the connecting device may in particular be integrally formed as an injection molded part. In this way, this injection-molded part can be detachably connected in an advantageous manner to a connecting counter-device 31.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Filters For Electric Vacuum Cleaners (AREA)
• Control And Other Processes For Unpacking Of Materials (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

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Citations (10)

Family Cites Families (2)

• 2006
  • 2006-12-15 ES ES06026077T patent/ES2319682T3/es active Active
  • 2006-12-15 DE DE202006020701U patent/DE202006020701U1/de not_active Expired - Lifetime
  • 2006-12-15 DK DK06026077T patent/DK1932461T3/da active
  • 2006-12-15 DE DE502006002847T patent/DE502006002847D1/de active Active
  • 2006-12-15 EP EP06026077A patent/EP1932461B1/de active Active
  • 2006-12-15 PL PL06026077T patent/PL1932461T3/pl unknown
  • 2006-12-15 AT AT06026077T patent/ATE422322T1/de not_active IP Right Cessation
• 2007
  • 2007-12-17 EP EP07856807.8A patent/EP2124698B1/de active Active
  • 2007-12-17 DK DK07856807.8T patent/DK2124698T3/da active
  • 2007-12-17 WO PCT/EP2007/011071 patent/WO2008071449A1/de active Application Filing
  • 2007-12-17 ES ES07856807T patent/ES2426781T3/es active Active
  • 2007-12-17 PL PL07856807T patent/PL2124698T3/pl unknown

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