EP2572620B1 - Frame for a dust space filter of a vacuum cleaner - Google Patents

Frame for a dust space filter of a vacuum cleaner Download PDF

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Publication number
EP2572620B1
EP2572620B1 EP12185014.3A EP12185014A EP2572620B1 EP 2572620 B1 EP2572620 B1 EP 2572620B1 EP 12185014 A EP12185014 A EP 12185014A EP 2572620 B1 EP2572620 B1 EP 2572620B1
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EP
European Patent Office
Prior art keywords
dust
ribs
air
frame
dust space
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.)
Active
Application number
EP12185014.3A
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German (de)
French (fr)
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EP2572620A1 (en
Inventor
André Back
Alexander Flegler
Joachim Klemm
Sandra Müller
Michael Pohlan
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2572620A1 publication Critical patent/EP2572620A1/en
Application granted granted Critical
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12Dry filters
    • A47L9/122Dry filters flat
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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

Definitions

  • the invention relates to a frame for or with a dust chamber filter for a vacuum cleaner.
  • the invention further relates to a vacuum cleaner, in particular a canister vacuum cleaner with such a frame.
  • a vacuum cleaner in the sense of the present invention comprises a dust chamber with a suction opening and a suction means space with at least one suction means located therein, for example a blower.
  • a partition wall separates the dust space from the suction agent space.
  • the partition wall has an inlet opening, via which air drawn in by the at least one suction means passes from the dust space into the suction agent space.
  • a partition wall is basically such airtight that air can only pass through the inlet opening from the dust chamber in the Saugffenraum.
  • the sucked by the at least one suction air enters from outside via the intake into the dust chamber.
  • the dust sucked together with the air is collected in the dust chamber, ie in the dust chamber.
  • the Saugschraum has at least one outlet opening, is passed through the air supplied into the Saugffenraum air during operation of the vacuum cleaner out.
  • a vacuum cleaner according to the present invention may further comprise an interference protection element, as this example, from the document WO 03/028517 A2 is known.
  • an engagement protection element has ribs through which air can pass. The ribs are arranged such that a user can not reach the at least one suction means from the dust space. The engagement protection element thus protects a consumer against injuries by the suction means.
  • the engagement protection element is permanently attached, so for example, inextricably connected to the partition to reliably protect at any time in the aforementioned manner.
  • the dust chamber is designed for insertion of a dust bag to collect sucked dust in the dust bag.
  • a dust bag in the dust chamber which is so connected to the inlet opening that sucked air first passes into the dust bag. Subsequently, air comes out of the dust bag acting as a filter again to flow to the Saugffenraum.
  • the dust chamber filter is arranged between the dust chamber and the suction agent space in such a way that dust located in the dust chamber is prevented from entering the absorbent chamber together with air.
  • air must pass through the dust chamber filter in order to be able to get from the dust chamber into the suction agent chamber. Although it is intended to collect sucked dust in the dust bag. It can still get dust in the rest of the dust chamber, such as when not properly inserted dust bag.
  • the dust chamber filter avoids that such dust in the dust chamber, which is located outside of the dust bag, enters the absorbent chamber. Dust in the suction means compartment could adversely affect the function of a suction means therein.
  • a dust chamber filter is held or fixed by a frame.
  • the dust chamber filter can be like out of DE 10 2009 002 051 A1 be known firmly connected to the frame or as from the publication DE 43 177 15 C1 be known from a designed as a cassette frame.
  • the frame is arranged so movable and / or removable in the vacuum cleaner or designed that an exchange or removal of the dust chamber filter for cleaning is possible.
  • a dust bag in such a vacuum cleaner adjoins the dust chamber filter or at least on its frame. If the dust bag fills with dust, the air flow through the dust chamber filter can be adversely affected. The suction power of a vacuum cleaner decreases accordingly.
  • the publication WO 2009/109277 A1 discloses a vacuum cleaner with a lid with ventilation channels. This lid includes a filter holder.
  • the publication DE 20 2009 008 769 U1 discloses a vacuum cleaner with a grid of intersecting circular and radial ribs with openings therebetween.
  • the grille consists of a front part and a rear part, which can be joined together with a filter screen between the front and the rear grille part.
  • a frame comprises the features of claim 1.
  • Advantageous embodiments emerge from the subclaims.
  • a frame according to claim 1 is provided for a dust chamber filter of a vacuum cleaner with the features mentioned.
  • a dust chamber filter is preferably permanently connected to the frame to allow replacement of the filter in a simple and trouble-free manner.
  • a dust chamber filter which is present for example in the form of a fleece or fabric with small pores, detachably adjacent to the frame and / or rests against this.
  • the frame can be designed as a cassette into which a filter can be inserted in a removable manner.
  • the frame is preferably made of plastic and in particular if it is permanently connected to the dust chamber filter.
  • the dust chamber filter may be made of paper and / or a cloth.
  • the dust chamber filter has pores so that air can pass through the filter.
  • the dust chamber filter is also designed to withstand this dust.
  • the frame has air ducts for guiding air from the dust chamber of a vacuum cleaner to the dust chamber filter or the dust chamber filter side.
  • the dust space filter side is the side of the frame on which the filter is mounted or to which the filter adjoins or abuts during operation of an associated vacuum cleaner.
  • the air ducts are open to the side facing away from the dust space filter side and thus faces the dust chamber in a vacuum cleaner. As a result, air can get over a large area from the dust chamber of a vacuum cleaner in the air ducts.
  • the air ducts avoid that a dust bag in a dust chamber of a vacuum cleaner can be close to the dust chamber filter.
  • the channels thus serve as spacers between dust chamber filter and dust bag.
  • a partially dust-filtered dust bag can obstruct the supply of air from the dust chamber to the dust chamber filter.
  • An associated vacuum cleaner can therefore maintain its suction even when its dust bag is already partially filled with dust.
  • the spacers are formed as flow channels in order to achieve particularly favorable flow conditions, whereby the object of the invention is achieved further improved.
  • Dust in the sense of the present invention means those particles which are sucked in by the vacuum cleaner.
  • all air ducts are provided with an entrance window.
  • An entrance window in the sense of the present invention means an opening provided with an edge on the side opposite to the dust space filter side. By such an edge is avoided that a dust bag can get into the opening area and thus able to reduce the opening area. It is thus ensured a consistently large opening, can pass through the air from the dust chamber in the associated air duct. This further contributes to the fact that the suction power of a vacuum cleaner can be maintained even with partially filled dust bag.
  • the one or more entrance windows are aligned so that they protrude from the dust space filter side perpendicular or at least substantially perpendicular.
  • the so-oriented passage area for air through such an opening therethrough so further improved to maintain the suction power of a vacuum cleaner even with partially filled dust bag.
  • the entrance window (s) laterally adjoin the dust space filter side. This ensures particularly well that air can get from the dust chamber to the filter.
  • a dust chamber preferably has spacers, for example in the form of ribs, which provide a spacing between Side walls of the dust chamber and a dust bag therein can be maintained in such a way that laterally emerging from a dust bag air can flow unhindered to the air ducts or entry windows of air ducts.
  • spacers therefore have channel-like structures leading to the entrance windows. This ensures further improved ensures that the suction power of a vacuum cleaner can be maintained even with partially filled dust bag.
  • air ducts of the frame are formed by ribs, which preferably protrude perpendicularly or at least substantially perpendicularly from the Staubraumfilterseite.
  • Air ducts preferably have a first outer section with a constant cross section and an adjoining section with a tapering cross section.
  • An outside section adjoins the edge of the frame.
  • the first outboard portion of such a constant section channel is preferably at least 1 cm long, more preferably at least 1.5 cm long and / or not more than 2 cm, preferably not longer than 1.7 cm, about the suction power of a vacuum cleaner as well To be able to maintain particularly good upright with partially filled dust bag.
  • the distance between two ribs then does not change in an outer section over the aforementioned lengths. Only then does the distance between two ribs decrease, preferably continuously towards the center.
  • the ribs are made permeable to air, in particular by windows in the ribs, and / or have grooves, in particular semicircular grooves, on the side remote from the dust chamber side, ie on the side of the frame opposite the dust chamber side. If an air flow channel of the frame is partially blocked or the associated area section of the filter, air can then pass through at least one corresponding opening and / or through at least one groove into an adjacent channel. It is thus further ensured that the suction power of a vacuum cleaner is not adversely affected by a partially filled dust bag.
  • the adjacent to the dust chamber diameter that is, the width of a groove is preferably less than 10 mm, more preferably less than 8 mm, so that a portion of a dust bag can not get into the groove, which would disadvantageously favor a blockage.
  • the aforementioned diameter and the depth of the groove are preferably at least 3 mm, more preferably at least 5 mm in order to ensure a sufficiently large air passage.
  • the ratio of width to depth of a groove is preferably between 2: 1 to 1: 2, more preferably about 1: 1, to ensure that an adjacent dust bag can not enter a groove such that it becomes clogged.
  • each edge of a window should be at least 0.5 mm, preferably at least 1 mm thick or high, viewed from the dust space filter side in the direction of the dust space.
  • Ribs of the channels which have a relatively large height, are connected in one embodiment by transverse ribs with a comparatively low height to each other.
  • the transverse ribs preferably adjoin the dust space filter side.
  • the transverse ribs contribute to mechanical stabilization. Due to their relatively low height, however, they hardly affect the suction power.
  • such transverse ribs are arranged in a ring, which contributes particularly well to a mechanical stabilization.
  • transverse ribs which are preferably arranged in a middle region in an annular manner, and further transverse ribs which extend in a direction which run parallel or substantially parallel to the narrow sides of the rectangular base surface.
  • transverse ribs are also available which contribute to the mechanical stabilization.
  • the overall height of the ribs which extends in the direction of the dust chamber seen from the dust chamber filter side, exceeds the overall height of the transverse ribs in one embodiment by more than three times, preferably by more than five times. It has been found that even in the case of plastic material on the one hand sufficient mechanical stability is achieved. On the other hand, the transverse ribs practically do not impede desired air flows. It is further improved the object of the invention achieved.
  • the overall height of transverse ribs is for example up to 5 mm, preferably up to 3 mm, particularly preferably up to 2 mm.
  • the height of the transverse ribs is preferably at least 0.5 mm, preferably at least 1 mm, in order to ensure the desired mechanical stability even when the frame is made of plastic.
  • the overall height of the ribs is preferably at least 10 mm, more preferably at least 12 mm, for example 15 mm and more. By such a height is sufficient Space provided so that air can flow through the air ducts in an appropriate manner, so as to reliably solve the object of the invention can.
  • the filter is preferably attached to the ribs and / or to the transverse ribs.
  • the filter is thus protected against excessive load. The longevity of the component is guaranteed so particularly reliable.
  • the filter is in particular attached to an outer peripheral edge of the frame.
  • the attachment may be provided by material adhesion, such as by gluing or welding. Alternatively or additionally, one or more positive connections may be present.
  • the maximum distance between two ribs is preferably not more than 30 mm, more preferably not more than 25 mm, so as to prevent a dust bag from getting between two ribs and closing the corresponding air duct.
  • the minimum distance between two ribs is preferably at least 4 mm, more preferably at least 6 mm in order to provide a width of air ducts which do not unduly hinder desirable airflows.
  • the ratio of width of an air duct to the height of an air duct is preferably between 2: 1 to 1: 2, so as to avoid on the one hand that a region of a dust bag can pass between ribs such that the corresponding air duct is closed. On the other hand, such a favorable cross section is provided, which ensures that a desired air flow is not unduly impeded.
  • At least one rib or portion of a rib protrudes from other ribs of the air ducts in an embodiment on the side opposite to the dust space filter side. It is achieved so that an adjacent dust bag side is not able to lie flat on the ribs. This helps to keep regular distances between a dust bag and ribs through which air can pass. This further improves that the suction power of a vacuum cleaner can be maintained even with partially filled dust bag.
  • the frame is intended for use in a generic vacuum cleaner, so a vacuum cleaner with a dust chamber, an inlet opening into the dust chamber, with a device for attaching a dust bag such that air sucked in via the inlet opening is passed into an attached dust bag, with a Saugffenraum with an outlet opening and at least one suction means therein, in particular an electrically driven suction means for sucking air from the dust chamber.
  • the frame is then located between the dust chamber and the Saugffenraum in such a way that air must pass through the dust chamber filter in order to get from the dust chamber into the Saugstoffraum can.
  • Such a vacuum cleaner may optionally have one or more of the features mentioned in any combination and in particular additionally an engagement protection element which is firmly connected to the vacuum cleaner. Seen in the direction of flow of the air, the engagement protection element is preferably behind the dust chamber filter.
  • FIG. 1 shows a frame 1 with a porous dust chamber filter 2, which is bounded by a peripheral edge 3 and preferably attached to the frame 1 insoluble.
  • the edge 3 and attached thereto dust chamber filter 2 form the dust space filter side of the frame 1, which in the case of FIG. 1 is rectangular and represents the base of the frame 1.
  • the base is for example 12-18 cm long and 8-12 cm wide.
  • the frame 1 has a plurality of air ducts for guiding air from the dust chamber of an associated vacuum cleaner to the dust chamber filter or the dust space filter side 2, 3, which are each bounded on two sides by ribs 4, 4a, 4b, 4c.
  • air ducts 4, 4a, 4b, 4c are shown.
  • the number of However, air ducts may vary and, for example, in a structure like that in the FIG. 1 it will be expedient to lie between 10 and 20.
  • the air ducts formed by the ribs 4, 4a, 4b, 4c are openly accessible to the side facing away from the dust space filter side 2, 3, and thus accessible from the side facing the dust space in a vacuum cleaner.
  • a dust bag is adjacent to this open side of the air ducts during operation of an associated vacuum cleaner.
  • the ribs 4, 4a, 4b, 4c then serve as spacers between the dust chamber filter 2 and a dust bag, not shown.
  • the air ducts which open at the narrow sides of the rectangular base 2, 3, have inlet windows, which are bounded by rib ends 5 and webs 6 and by the adjoining region of the edge 3.
  • Each entrance window forms an opening which is provided by a web 6, that is to say with an edge on the side which lies opposite the dust space filter side 2, 3.
  • a dust bag resting thereon can get into the provided by such a window opening area.
  • FIG. 1 There are four entrance windows on each narrow side. However, the number of entry windows may vary, for example between two and eight. Also, such windows may be provided on the long sides. In one embodiment, it is also possible to arrange webs 6 at other locations along the air ducts in order to avoid that a dust bag between ribs 4, 4a, 4b, 4c can get.
  • the width of two outer entrance windows on each narrow side in a frame is as in FIG. 1 shown preferably 20 to 30 mm, for example 23 mm.
  • the width of the entrance windows, which are in between, is then for example 10-20 mm, for example 15 mm.
  • each entrance window formed by the ends of ribs project perpendicularly from the dust space filter side 2, 3.
  • the passage areas provided by the entry windows are also perpendicular to the dust space filter side 2, 3 off.
  • the entrance windows extend from the edge 3, adjacent to the dust space filter 2.
  • Ribs 4a, 4b, 4c are perpendicular from the dust space filter side 2, 3 from.
  • Ribs 4a, 4b each have a first, outboard portion 4a which is parallel to adjacent rectilinear ribs 4, 4c or to adjacent portions 4a and / or portions of side walls 9 of the frame.
  • the ribs 4a, 4b have an inner section 4b bent in such a way that the section 4b towards the center continuously separates the distance to an adjacent rib 4, 4c and as in FIG FIG. 1 shown evenly scaled down.
  • Air ducts therefore have a first outer section with a constant cross-section and an adjoining section with a tapering cross-section. More specifically, then reduces the width of each air duct to the middle.
  • Each outer portion of a rib 4, 4a, 4b, 4c is adjacent to one end of the edge 3 of the frame 1 and is firmly connected thereto.
  • the sections 4a are preferably 1.5 cm long. Air ducts hinder from the edge 3, therefore initially along a distance of 1.5 cm an air flow not due to a decreasing channel width. In this area, air can already pass through the filter 2 into the suction agent space. As a result of the subsequent tapering of each air duct, correspondingly less air passes through.
  • the air ducts are as shown at one (in the FIG. 1 Lower) side limited by the dust chamber filter 2 and indeed completely as well as the outer sections of the air ducts, which have a constant cross-section, ie a constant width.
  • Ribs 4, 4a, 4b, 4c have on the side facing the dust chamber one or more open to the dust chamber, semi-circular grooves 7, the dust space filter side 2, 3 opposite and preferably at the inner portions 4b of the air ducts, which tapers Have cross sections, as these sections are more likely to be affected than the outer sections, where the cross section and the width does not change.
  • the diameter of such a semicircle is preferably between 3 and 10 mm in order to achieve the desired effect on the one hand reliably and on the other hand not mechanically destabilize the frame.
  • a rib has one to two semicircular grooves 7. Ribs attached to the narrow sides of the frame are preferably provided with two semicircular grooves 7, since such ribs may be relatively long.
  • Ribs which originate from longitudinal sides, that is to say from a side wall 9, preferably have only a semicircular groove 7.
  • the outer portions 4a of the ribs 4,4, 4b, 4c are preferably air impermeable and also have no grooves 7 to avoid air turbulence, which could reduce the performance of the vacuum cleaner.
  • the frame 1 has transverse ribs 8 with a very low overall height of, for example, only 1 to 2 mm adjacent to the dust chamber filter 2.
  • the height of the ribs 4, 4a, 4b, 4c is greater by a multiple than the height of the transverse ribs 8 and seen from the dust space filter side 2.3.
  • the height of the ribs 4, 4a, 4b, 4c exceeds at least four times, preferably at least five times, the height of the transverse ribs 8.
  • the height of the ribs 4, 4a, 4b, 4c is thus substantially higher than the height of the transverse ribs 8
  • Internal transverse ribs 8 are as in FIG FIG. 1 shown arranged in a ring.
  • the height of the side walls 9 is less than the height of the adjacent ribs 4c and rib sections 4a. In this way, an entry of air into the corresponding air ducts is made possible even on the long sides, although the vertically projecting from the dust chamber side 2, 3 walls 9 include no entrance window so as to stabilize the frame in the longitudinal direction sufficiently and reliably mechanically.
  • the walls 9 are, for example, 0.8 to 1.2 cm, for example 1 cm high, namely from the dust chamber filter side 2, 3 looked.
  • the ribs 4, 4a, 4b, 4c are preferably 2 to 10 mm higher than the height of the walls 9.
  • the walls 9 typically have a length of 10 to 18 cm, for example a length of about 13 cm to 15 cm up.
  • the distance between the walls 9 is typically 8-12 cm, preferably 9-11 cm, for example 10 cm.
  • Ribs 4, 4a, 4b, 4c terminate at least predominantly in an inner ring 10, which is formed by a wall projecting perpendicularly from the base surface and adjacent to the dust chamber filter. These ends of the ribs 4, 4a, 4b, 4c are integrally connected to the wall 10 and preferably ends evenly distributed around the ring 10 in order to promote favorable flow conditions advantageous. Thus, these too inner ends of the affected ribs held stable.
  • the height of the wall 10 is less than the height of the ribs 4, 4a, 4b, 4c. In particular, the height of the wall 10 is less than the height of the walls 9.
  • the height of the wall 10 is preferably less than 10 mm and / or more than 5 mm, on the one hand to allow the air in the area inside the Rings 10 even when at the ribs 4, 4a, 4b, 4c adjacent, already partially filled dust bag to arrive and on the other hand to ensure sufficient stability.
  • the ring 10 may be provided with a web 11 adjacent to the filter 2 and centered with a knob 12 so as to stabilize the position of the dust chamber filter 2.
  • the dust chamber filter 2 is preferably fastened to the knob 12, specifically in a form-fitting manner, in order to further stabilize the position of the dust chamber filter 2, regardless of the long-term stability of other adhesive or welded joints between the frame 1 and the dust chamber filter 2.
  • the frame 1 may also have hooks, for example, four hooks 13, which serve to secure the frame 1 in a vacuum cleaner.
  • All webs 6, 8, 11 are at most only a few millimeters high, for example, 0.5 to 4 mm, preferably 1 to 3 mm, such as 2 mm, to provide mechanical stabilization without obstructing air currents to any appreciable extent ,
  • the thickness of walls, ribs and webs is 0.5-3 mm, preferably 1-2 mm.
  • each rib 4c protrudes from other ribs 4, 4a, 4b of the air ducts on the side opposite to the dust-space filter side 2, 3, such as above all FIG. 3 clarified. It is thus achieved that an adjacent dust bag side is not able to lie flat on the ribs 4, 4a, 4b, 4c.
  • FIG. 1 an embodiment is shown in which the adjacent to the respective wall 9 ends of the two ribs 4 c are three to eight mm higher compared to the heights of the adjacent rib portions 4 a.
  • the height of the two oppositely disposed ribs 4c advantageously decreases, namely in the case of FIG.
  • the heights of all the ribs 4, 4a, 4b, 4c in one embodiment are the same again.
  • the height of the ribs 4c in the region of the ring 10 is higher than the height of adjacent ribs.
  • an adjacent dust bag is at least at the edge regions by the ribs 4c slightly raised at the walls 9.
  • a gap may also remain between the dust bag and the ribs 4c, which can further contribute to maintaining the suction performance of a vacuum cleaner.
  • Ribs 4, 4a, 4b, 4c end within the frame, if otherwise a suitable minimum width of air ducts would fall below.
  • a minimum width of an air duct is preferably at least 5 mm, more preferably at least 7 mm.
  • To pay attention to such a minimum width has proven to be advantageous in order to maintain the performance of a vacuum cleaner reliably even with partially filled dust bag can. For this reason, not all of the ribs 4, 4a, 4b, 4c terminate at the ring 10. Instead, in the case of FIG. 1 four ribs which terminate at the annular web 8.
  • a symbol such as an arrow 14 in one or both walls 9, which indicates the extra high end of a rib 4c.
  • This protruding end can be particularly easily taken to use, for example, the frame with the attached dust chamber filter or remove it from a vacuum cleaner.
  • the arrow 14 facilitates finding such a grip area.
  • the arrow can at the same time indicate an appropriate installation direction and / or a gripping of the grip area has the consequence that can only be installed in the correct installation direction.
  • the dust chamber filter consists in the FIG. 1 shown frame of a one-piece plastic part.
  • the dust chamber filter 2 consists of a fleece, which in the case of FIG. 1 is attached to the underside shown there by gluing or welding and preferably also on the web bottoms, the undersides of the ribs 4, 4a, 4b, 4c and / or the underside of the wall 10, so that the dust chamber filter 2 the loads during operation reliably grown is.
  • the FIG. 2 shows a view of the frame FIG. 1 and seen from the dust room.
  • the FIG. 3 shows a plan view of a narrow side of the frame with entrance windows.
  • an embodiment is shown in which the ribs 4c, although sloping run to the middle, but always higher than adjacent other ribs, including the ring 10, in the FIG. 3 is not visible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Description

Die Erfindung betrifft einen Rahmen für oder mit einem Staubraumfilter für einen Staubsauger. Die Erfindung betrifft darüber hinaus einen Staubsauger, insbesondere einen Bodenstaubsauger mit einem solchen Rahmen.The invention relates to a frame for or with a dust chamber filter for a vacuum cleaner. The invention further relates to a vacuum cleaner, in particular a canister vacuum cleaner with such a frame.

Ein Staubsauger im Sinne der vorliegenden Erfindung umfasst einen Staubraum mit einer Ansaugöffnung sowie einen Saugmittelraum mit wenigstens einem darin befindlichen Saugmittel wie zum Beispiel einem Gebläse. Eine Trennwand trennt den Staubraum vom Saugmittelraum. Die Trennwand verfügt über eine Eintrittsöffnung, über die durch das wenigstens eine Saugmittel angesaugte Luft von dem Staubraum in den Saugmittelraum gelangt. Darüber hinaus ist eine Trennwand grundsätzlich derart luftdicht, dass Luft ausschließlich durch die Eintrittsöffnung hindurch von dem Staubraum in den Saugmittelraum gelangen kann.A vacuum cleaner in the sense of the present invention comprises a dust chamber with a suction opening and a suction means space with at least one suction means located therein, for example a blower. A partition wall separates the dust space from the suction agent space. The partition wall has an inlet opening, via which air drawn in by the at least one suction means passes from the dust space into the suction agent space. In addition, a partition wall is basically such airtight that air can only pass through the inlet opening from the dust chamber in the Saugmittelraum.

Die durch das wenigstens eine Saugmittel angesaugte Luft gelangt von außen über die Ansaugöffnung in den Staubraum hinein. Der zusammen mit der Luft angesaugte Staub wird in der Staubkammer, also in dem Staubraum gesammelt. Der Saugmittelraum verfügt über wenigstens eine Austrittsöffnung, über die in den Saugmittelraum gelangte Luft während des Betriebs des Staubsaugers heraus geleitet wird.The sucked by the at least one suction air enters from outside via the intake into the dust chamber. The dust sucked together with the air is collected in the dust chamber, ie in the dust chamber. The Saugmittelraum has at least one outlet opening, is passed through the air supplied into the Saugmittelraum air during operation of the vacuum cleaner out.

Ein Staubsauger im Sinne der vorliegenden Erfindung kann darüber hinaus ein Eingriffsschutzelement umfassen, wie dieses beispielsweise aus der Druckschrift WO 03/028517 A2 bekannt ist. Ein solches Eingriffsschutzelement weist Rippen auf, durch die Luft hindurch treten kann. Die Rippen sind derart angeordnet, dass ein Benutzer vom Staubraum aus nicht das wenigstens eine Saugmittel erreichen kann. Das Eingriffsschutzelement schützt einen Verbraucher also vor Verletzungen durch das Saugmittel. Das Eingriffsschutzelement ist unlösbar angebracht, so zum Beispiel unlösbar mit der Trennwand verbunden, um zuverlässig jederzeit in vorgenannter Weise zu schützen.A vacuum cleaner according to the present invention may further comprise an interference protection element, as this example, from the document WO 03/028517 A2 is known. Such an engagement protection element has ribs through which air can pass. The ribs are arranged such that a user can not reach the at least one suction means from the dust space. The engagement protection element thus protects a consumer against injuries by the suction means. The engagement protection element is permanently attached, so for example, inextricably connected to the partition to reliably protect at any time in the aforementioned manner.

Der Staubraum ist für ein Einsetzen eines Staubbeutels eingerichtet, um angesaugten Staub im Staubbeutel sammeln zu können. Während des Betriebs des Staubsaugers befindet sich daher ein Staubbeutel im Staubraum, der so mit der Eintrittsöffnung verbunden ist, dass angesaugte Luft zunächst in den Staubbeutel gelangt. Im Anschluss daran tritt Luft aus dem als Filter wirkenden Staubbeutel wieder heraus, um zum Saugmittelraum zu strömen.The dust chamber is designed for insertion of a dust bag to collect sucked dust in the dust bag. During operation of the vacuum cleaner is located Therefore, a dust bag in the dust chamber, which is so connected to the inlet opening that sucked air first passes into the dust bag. Subsequently, air comes out of the dust bag acting as a filter again to flow to the Saugmittelraum.

Der Staubraumfilter ist derart zwischen Staubraum und Saugmittelraum angeordnet, dass im Staubraum befindlicher Staub davon abgehalten wird, zusammen mit Luft in den Saugmittelraum zu gelangen. Grundsätzlich muss Luft zwingend den Staubraumfilter passieren, um von dem Staubraum in den Saugmittelraum gelangen zu können. Zwar ist vorgesehen, angesaugten Staub im Staubbeutel zu sammeln. Es kann dennoch Staub in den übrigen Staubraum gelangen, so zum Beispiel bei nicht ordnungsgemäß eingesetztem Staubbeutel. Der Staubraumfilter vermeidet, dass solcher Staub im Staubraum, der sich außerhalb des Staubbeutels befindet, in den Saugmittelraum gelangt. Staub im Saugmittelraum könnte die Funktion eines darin befindlichen Saugmittels nachteilhaft beeinträchtigen.The dust chamber filter is arranged between the dust chamber and the suction agent space in such a way that dust located in the dust chamber is prevented from entering the absorbent chamber together with air. Basically, air must pass through the dust chamber filter in order to be able to get from the dust chamber into the suction agent chamber. Although it is intended to collect sucked dust in the dust bag. It can still get dust in the rest of the dust chamber, such as when not properly inserted dust bag. The dust chamber filter avoids that such dust in the dust chamber, which is located outside of the dust bag, enters the absorbent chamber. Dust in the suction means compartment could adversely affect the function of a suction means therein.

Ein Staubraumfilter wird durch einen Rahmen gehalten oder fixiert. Der Staubraumfilter kann wie aus der DE 10 2009 002 051 A1 bekannt fest mit dem Rahmen verbunden sein oder wie aus der Druckschrift DE 43 177 15 C1 bekannt aus einem als Kassette ausgestalteten Rahmen entnommen werden. Der Rahmen ist derart beweglich und/ oder abnehmbar im Staubsauger angeordnet oder gestaltet, dass ein Austausch oder Entnahme des Staubraumfilters zwecks Reinigung möglich ist.A dust chamber filter is held or fixed by a frame. The dust chamber filter can be like out of DE 10 2009 002 051 A1 be known firmly connected to the frame or as from the publication DE 43 177 15 C1 be known from a designed as a cassette frame. The frame is arranged so movable and / or removable in the vacuum cleaner or designed that an exchange or removal of the dust chamber filter for cleaning is possible.

Ein Staubbeutel in einem solchen Staubsauger grenzt an den Staubraumfilter oder zumindest an seinem Rahmen an. Füllt sich der Staubbeutel mit Staub, so kann dadurch die Luftströmung durch den Staubraumfilter hindurch nachteilhaft beeinträchtigt werden. Die Saugleistung eines Staubsaugers vermindert sich entsprechend.A dust bag in such a vacuum cleaner adjoins the dust chamber filter or at least on its frame. If the dust bag fills with dust, the air flow through the dust chamber filter can be adversely affected. The suction power of a vacuum cleaner decreases accordingly.

Die Druckschrift WO 2009/109277 A1 offenbart einen Staubsauger mit einem Deckel mit Lüftungskanälen. Dieser Deckel umfasst einen Filterhalter.The publication WO 2009/109277 A1 discloses a vacuum cleaner with a lid with ventilation channels. This lid includes a filter holder.

Die Druckschrift DE 20 2009 008 769 U1 offenbart einen Staubsauger mit einem Gitter aus sich schneidenden kreisförmigen und radial verlaufenden Rippen mit dazwischen liegenden Öffnungen. Das Gitter besteht aus einem vorderen Teil und einem hinteren Teil, die mit einem Filtersieb zwischen dem vorderen und dem hinteren Gitterteil zusammengefügt werden können.The publication DE 20 2009 008 769 U1 discloses a vacuum cleaner with a grid of intersecting circular and radial ribs with openings therebetween. The grille consists of a front part and a rear part, which can be joined together with a filter screen between the front and the rear grille part.

Es ist Aufgabe der vorliegenden Erfindung, einen Rahmen für einen Staubraumfilter bereitzustellen, der bei einem gattungsgemäßen Staubsauger eine hohe Saugleistung auch bei zumindest teilweise gefülltem Staubbeutel ermöglicht.It is an object of the present invention to provide a frame for a dust chamber filter, which allows for a generic vacuum cleaner high suction even with at least partially filled dust bag.

Zur Lösung der Aufgabe umfasst ein Rahmen die Merkmale des Anspruchs 1. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.To achieve the object, a frame comprises the features of claim 1. Advantageous embodiments emerge from the subclaims.

Ein Rahmen nach Anspruch 1 ist für einen Staubraumfilter eines Staubsaugers mit den eingangs genannten Merkmalen vorgesehen. Ein Staubraumfilter ist vorzugsweise unlösbar mit dem Rahmen verbunden, um einen Austausch des Filters auf einfache und störungssichere Weise zu ermöglichen. Es ist aber auch möglich, dass ein Staubraumfilter, die beispielsweise in Form eines Vlieses oder Gewebes mit kleinen Poren vorliegt, lösbar an den Rahmen angrenzt und/oder an diesem anliegt. Der Rahmen kann als Kassette ausgestaltet sein, in die ein Filter in herausnehmbarer Weise eingelegt sein kann. Der Rahmen besteht bevorzugt aus Kunststoff und zwar insbesondere dann, wenn dieser unlösbar mit dem Staubraumfilter verbunden ist. Der Staubraumfilter kann aus Papier und/oder aus einem Stoff bestehen. Der Staubraumfilter weist Poren auf, so dass Luft durch den Filter hindurchtreten kann. Der Staubraumfilter ist darüber hinaus so beschaffen, dass dieser Staub zurückzuhalten vermag.A frame according to claim 1 is provided for a dust chamber filter of a vacuum cleaner with the features mentioned. A dust chamber filter is preferably permanently connected to the frame to allow replacement of the filter in a simple and trouble-free manner. But it is also possible that a dust chamber filter, which is present for example in the form of a fleece or fabric with small pores, detachably adjacent to the frame and / or rests against this. The frame can be designed as a cassette into which a filter can be inserted in a removable manner. The frame is preferably made of plastic and in particular if it is permanently connected to the dust chamber filter. The dust chamber filter may be made of paper and / or a cloth. The dust chamber filter has pores so that air can pass through the filter. The dust chamber filter is also designed to withstand this dust.

Der Rahmen weist Luftführungskanäle zur Führung von Luft vom Staubraum eines Staubsaugers zum Staubraumfilter bzw. der Staubraumfilterseite auf. Die Staubraumfilterseite ist die Seite des Rahmens, auf der der Filter angebracht ist oder an die der Filter während des Betriebes eines zugehörigen Staubsaugers angrenzt oder anliegt. Grundsätzlich sind die Luftführungskanäle zu der Seite hin offen, die von der Staubraumfilterseite abgewandt und folglich in einem Staubsauger dem Staubraum zugewandt ist. Hierdurch kann Luft großflächig vom Staubraum eines Staubsaugers aus in die Luftführungskanäle hineingelangen. Durch die Luftführungskanäle wird vermieden, dass ein Staubbeutel in einem Staubraum eines Staubsaugers dicht an dem Staubraumfilter angrenzen kann. Die Kanäle dienen also als Abstandshalter zwischen Staubraumfilter und Staubbeutel. Es wird so vermieden, dass ein teilweise mit Staub gefiltert Staubbeutel die Zufuhr von Luft aus dem Staubraum zum Staubraumfilter behindern kann. Ein zugehöriger Staubsauger vermag seine Saugleistung daher auch dann aufrecht zu erhalten, wenn sein Staubbeutel bereits teilweise mit Staub gefüllt ist. Die Abstandshalter sind als Strömungskanäle ausgeformt, um besonders günstige Strömungsverhältnisse zu erzielen, wodurch die Aufgabe der Erfindung weiter verbessert gelöst wird.The frame has air ducts for guiding air from the dust chamber of a vacuum cleaner to the dust chamber filter or the dust chamber filter side. The dust space filter side is the side of the frame on which the filter is mounted or to which the filter adjoins or abuts during operation of an associated vacuum cleaner. Basically, the air ducts are open to the side facing away from the dust space filter side and thus faces the dust chamber in a vacuum cleaner. As a result, air can get over a large area from the dust chamber of a vacuum cleaner in the air ducts. The air ducts avoid that a dust bag in a dust chamber of a vacuum cleaner can be close to the dust chamber filter. The channels thus serve as spacers between dust chamber filter and dust bag. It is thus avoided that a partially dust-filtered dust bag can obstruct the supply of air from the dust chamber to the dust chamber filter. An associated vacuum cleaner can therefore maintain its suction even when its dust bag is already partially filled with dust. The spacers are formed as flow channels in order to achieve particularly favorable flow conditions, whereby the object of the invention is achieved further improved.

Gelingt es, eine Saugleistung auch bei teilweise gefülltem Staubbeutel besonders gut aufrechtzuerhalten, so gelingt es auch, den Staubbeutel besonders vollständig mit Staub zu beladenIf it is possible to maintain a suction performance particularly well even with a partially filled dust bag, it is also possible to load the dust bag particularly completely with dust

Staub im Sinne der vorliegenden Erfindung meint solche Partikel, die vom Staubsauger angesaugt werden.Dust in the sense of the present invention means those particles which are sucked in by the vacuum cleaner.

In einer Ausführungsform sind sämtliche Luftführungskanäle mit einem Eintrittsfenster versehen. Ein Eintrittsfenster im Sinne der vorliegenden Erfindung meint eine Öffnung, die mit einem Rand auf der Seite versehen ist, die der Staubraumfilterseite gegenüber liegt. Durch einen solchen Rand wird vermieden, dass ein Staubbeutel in den Öffnungsbereich hinein gelangen kann und so den Öffnungsbereich zu verkleinern vermag. Es wird so eine gleichbleibend große Öffnung gewährleistet, durch die Luft vom Staubraum in den zugehörigen Luftführungskanal gelangen kann. Dies trägt weiter verbessert dazu bei, dass die Saugleistung eines Staubsaugers auch bei teilweise gefülltem Staubbeutel aufrecht erhalten werden kann.In one embodiment, all air ducts are provided with an entrance window. An entrance window in the sense of the present invention means an opening provided with an edge on the side opposite to the dust space filter side. By such an edge is avoided that a dust bag can get into the opening area and thus able to reduce the opening area. It is thus ensured a consistently large opening, can pass through the air from the dust chamber in the associated air duct. This further contributes to the fact that the suction power of a vacuum cleaner can be maintained even with partially filled dust bag.

Das oder die Eintrittsfenster sind so ausgerichtet, dass diese von der Staubraumfilterseite senkrecht oder zumindest im Wesentlichen senkrecht abstehen. Die derart ausgerichtete Durchtrittsfläche für Luft durch eine solche Öffnung hindurch trägt so weiter verbessert zur Aufrechterhaltung der Saugleistung eines Staubsaugers auch bei teilweise gefülltem Staubbeutel bei.The one or more entrance windows are aligned so that they protrude from the dust space filter side perpendicular or at least substantially perpendicular. The so-oriented passage area for air through such an opening therethrough so further improved to maintain the suction power of a vacuum cleaner even with partially filled dust bag.

Das oder die Eintrittsfenster grenzen seitlich an die Staubraumfilterseite an. Dadurch wird besonders gut sichergestellt, dass Luft aus dem Staubraum zu dem Filter gelangen kann.The entrance window (s) laterally adjoin the dust space filter side. This ensures particularly well that air can get from the dust chamber to the filter.

Um die Saugleistung eines Staubsaugers weiter verbessert aufrechtzuerhalten, sind der oder die Eintrittsfenster angrenzend an den Randbereich der Staubraumfilterseite angeordnet. Ist ein Staubbeutel bereits teilweise gefüllt, so wird so gewährleistet, dass seitlich aus dem Staubbeutel austretende Luft zumindest über diese Eintrittsfenster ungehindert in die zugehörigen Luftführungskanäle gelangen kann. Bevorzugt weist ein Staubraum daher Abstandshalter auf, beispielsweise in Form von Rippen, die einen Abstand zwischen Seitenwänden des Staubraums und einem darin befindlichen Staubbeutel aufrecht erhalten können und zwar derart, dass seitlich aus einem Staubbeutel austretende Luft ungehindert zu den Luftführungskanälen oder Eintrittsfenstern von Luftführungskanälen strömen kann. Insbesondere weisen solche Abstandshalter daher kanalartige Strukturen auf, die zu den Eintrittsfenstern führen. Hierdurch wird weiter verbessert gewährleistet, dass die Saugleistung eines Staubsaugers auch bei teilweise gefülltem Staubbeutel aufrecht erhalten werden kann.In order to further improve the suction performance of a vacuum cleaner, the entrance window or windows are arranged adjacent to the edge area of the dust space filter side. If a dust bag is already partially filled, it is thus ensured that air emerging laterally from the dust bag can pass unhindered into the associated air ducts at least via these inlet windows. Therefore, a dust chamber preferably has spacers, for example in the form of ribs, which provide a spacing between Side walls of the dust chamber and a dust bag therein can be maintained in such a way that laterally emerging from a dust bag air can flow unhindered to the air ducts or entry windows of air ducts. In particular, such spacers therefore have channel-like structures leading to the entrance windows. This ensures further improved ensures that the suction power of a vacuum cleaner can be maintained even with partially filled dust bag.

Um weiter verbessert die Saugleistung eines Staubsaugers auch bei teilweise gefülltem Staubbeutel aufrecht erhalten zu können, sind Luftführungskanäle des Rahmens durch Rippen gebildet, die vorzugsweise senkrecht oder zumindest im Wesentlichen senkrecht von der Staubraumfilterseite abstehen. Mit minimalem Materialaufwand wird so ein gewünschter Abstand zwischen einem Staubbeutel und dem Staubraumfilter während des Betriebes gewährleistet. Der minimale Materialaufwand trägt dazu bei, dass Strömungsverluste minimiert werden, die die Saugleistung eines Staubsaugers nachteilhaft beeinträchtigen könnten.To further improve the suction performance of a vacuum cleaner to be able to maintain even with partially filled dust bag, air ducts of the frame are formed by ribs, which preferably protrude perpendicularly or at least substantially perpendicularly from the Staubraumfilterseite. With a minimum of material, a desired distance between a dust bag and the dust chamber filter during operation is guaranteed. The minimal cost of materials helps minimize flow losses that could adversely affect the suction performance of a vacuum cleaner.

Vorzugsweise weisen Luftführungskanäle einen ersten außen liegenden Abschnitt mit gleichbleibendem Querschnitt und einen sich daran anschließenden Abschnitt mit einem sich verjüngenden Querschnitt auf. Ein außen liegende Abschnitt grenzt an den Rand des Rahmens an. Zwei an einen Kanal angrenzende Rippen, die diesen Kanal also seitlich begrenzen, weisen entlang eines solchen außen liegenden Abschnitts untereinander einen gleich bleibenden Abstand auf. Es wird so erreicht, dass für seitlich eintretende Luft zunächst einmal eine gleichbleibend große Durchtrittsfläche bereitgehalten wird. Erst zur Mitte hin verringert sich der Abstand zwischen den Rippen, so dass sich die Querschnitte der Kanäle dann verjüngen. Es hat sich herausgestellt, dass so die Saugleistung eines Staubsaugers weiter verbessert auch bei teilweise gefülltem Staubbeutel aufrecht erhalten werden kann und zwar insbesondere dann, wenn auch die außen liegenden Abschnitte der Kanäle auf der Staubraumfilterseite zumindest überwiegend durch den Staubraumfilter abgedeckt sind, so dass in diesem Bereich eine großflächige Durchtrittsfläche für Luft zum Saugmittelraum hin bereitsteht.Air ducts preferably have a first outer section with a constant cross section and an adjoining section with a tapering cross section. An outside section adjoins the edge of the frame. Two ribs adjoining a channel, which thus delimit this channel laterally, have a constant distance from one another along such an outer section. It is thus achieved that initially a uniformly large passage area is kept ready for laterally entering air. Only towards the middle of the distance between the ribs decreases, so that the cross sections of the channels then taper. It has been found that so the suction performance of a vacuum cleaner can be maintained even with partially filled dust bag upright and in particular, even if the outer sections of the channels on the dust space filter side are at least predominantly covered by the dust chamber filter, so that in this A large area passage area for air to the Saugmittelraum is ready.

Der erste außen liegende Abschnitt eines solchen Kanals mit gleichbleibendem Querschnitt ist vorzugsweise wenigstens 1 cm lang, besonders bevorzugt wenigstens 1,5 cm lang und / oder nicht länger als 2 cm, vorzugsweise nicht länger als 1,7 cm, um die Saugleistung eines Staubsaugers auch bei teilweise gefülltem Staubbeutel besonders gut aufrecht erhalten zu können. Der Abstand zwischen zwei Rippen verändert sich dann in einem außen liegenden Abschnitt nicht über die vorgenannten Längen. Erst im Anschluss daran verringert sich der Abstand zwischen zwei Rippen und zwar vorzugsweise kontinuierlich zur Mitte hin.The first outboard portion of such a constant section channel is preferably at least 1 cm long, more preferably at least 1.5 cm long and / or not more than 2 cm, preferably not longer than 1.7 cm, about the suction power of a vacuum cleaner as well To be able to maintain particularly good upright with partially filled dust bag. The distance between two ribs then does not change in an outer section over the aforementioned lengths. Only then does the distance between two ribs decrease, preferably continuously towards the center.

Die Rippen sind in einer Ausführungsform insbesondere durch Fenster in den Rippen luftdurchlässig ausgestaltet und / oder weisen Nuten, insbesondere halbkreisförmige Nuten auf der von der Staubraumfilterseite abgewandten Seite auf, also auf der Seite des Rahmens, die der Staubraumfilterseite gegenüber liegt. Ist ein Luftströmungskanal des Rahmens teilweise verstopft oder aber der zugehörige Flächenabschnitt des Filters, so kann dann Luft in der Regel durch zumindest eine entsprechende Öffnung hindurch und/ oder durch zumindest eine Nut hindurch in einen benachbarten Kanal hinein gelangen. Es wird so weiter verbessert sichergestellt, dass die Saugleistung eines Staubsaugers nicht durch einen teilweise gefüllten Staubbeutel nachteilhaft beeinträchtigt wird.In one embodiment, the ribs are made permeable to air, in particular by windows in the ribs, and / or have grooves, in particular semicircular grooves, on the side remote from the dust chamber side, ie on the side of the frame opposite the dust chamber side. If an air flow channel of the frame is partially blocked or the associated area section of the filter, air can then pass through at least one corresponding opening and / or through at least one groove into an adjacent channel. It is thus further ensured that the suction power of a vacuum cleaner is not adversely affected by a partially filled dust bag.

Der an den Staubraum angrenzende Durchmesser, also die Breite einer Nut beträgt bevorzugt weniger als 10 mm, besonders bevorzugt weniger als 8 mm, damit ein Bereich eines Staubbeutel nicht in die Nut gelangen kann, was nachteilhaft eine Verstopfung begünstigen würde. Der vorgenannte Durchmesser sowie die Tiefe der Nut beträgen vorzugsweise wenigstens 3 mm, besonders bevorzugt wenigstens 5 mm, um für einen hinreichend großen Luftdurchlass Sorge zu tragen. Das Verhältnis von Breite zu Tiefe einer Nut liegt vorzugsweise zwischen 2:1 bis 1:2, besonders bevorzugt bei etwa 1:1, um zu gewährleisten, dass ein angrenzender Staubbeutel nicht derart in eine Nut gelangen kann, dass diese verstopft wird.The adjacent to the dust chamber diameter, that is, the width of a groove is preferably less than 10 mm, more preferably less than 8 mm, so that a portion of a dust bag can not get into the groove, which would disadvantageously favor a blockage. The aforementioned diameter and the depth of the groove are preferably at least 3 mm, more preferably at least 5 mm in order to ensure a sufficiently large air passage. The ratio of width to depth of a groove is preferably between 2: 1 to 1: 2, more preferably about 1: 1, to ensure that an adjacent dust bag can not enter a groove such that it becomes clogged.

Sind Rippen mit ein oder mehreren Fenstern versehen, so verhindert der Randbereich des Fensters, der in einem Staubsauger an den Staubbeutel grenzt, dass ein Staubbeutel das Fenster verschließen kann. Daher sind Fenster in Rippen besonders zu bevorzugen. Die Breite und/oder Höhe eines Fensters beträgt vorzugsweise wenigstens 2 mm, besonders bevorzugt wenigstens 4 mm, um hinreichend große Durchtrittsflächen bereitzustellen. Aus Stabilitätsgründen sollte ein jeder Rand eines Fensters wenigstens 0,5 mm, bevorzugt wenigstens 1 mm dick bzw. hoch sein und zwar von der Staubraumfilterseite aus gesehen in Richtung Staubraum.If ribs are provided with one or more windows, the edge area of the window, which adjoins the dust bag in a vacuum cleaner, prevents a dust bag from closing the window. Therefore, windows in ribs are particularly preferable. The width and / or height of a window is preferably at least 2 mm, especially preferably at least 4 mm in order to provide sufficiently large passage areas. For reasons of stability, each edge of a window should be at least 0.5 mm, preferably at least 1 mm thick or high, viewed from the dust space filter side in the direction of the dust space.

Rippen der Kanäle, die eine relativ große Bauhöhe aufweisen, sind in einer Ausführungsform durch Querrippen mit im Vergleich dazu niedriger Bauhöhe miteinander verbunden. Die Querrippen grenzen vorzugsweise an die Staubraumfilterseite an. Die Querrippen tragen zu einer mechanischen Stabilisierung bei. Aufgrund ihrer verhältnismäßig geringen Bauhöhe beeinträchtigen sie allerdings die Saugleistung kaum. Vorzugsweise sind solche Querrippen ringartig angeordnet, was besonders gut zu einer mechanischen Stabilisierung beiträgt.Ribs of the channels, which have a relatively large height, are connected in one embodiment by transverse ribs with a comparatively low height to each other. The transverse ribs preferably adjoin the dust space filter side. The transverse ribs contribute to mechanical stabilization. Due to their relatively low height, however, they hardly affect the suction power. Preferably, such transverse ribs are arranged in a ring, which contributes particularly well to a mechanical stabilization.

Insbesondere bei einer rechteckigen Grundfläche des Rahmens gibt es neben vorzugsweise in einem mittleren Bereich ringartig angeordneten Querrippen weitere Querrippen, die sich in einer Richtung erstrecken, die parallel oder im Wesentlichen parallel zu den schmalen Seiten der rechteckigen Grundfläche verlaufen. Es stehen dann auch in diesem Bereich Querrippen zur Verfügung, die zur mechanischen Stabilisierung beitragen.In particular, in the case of a rectangular base surface of the frame, there are transverse ribs which are preferably arranged in a middle region in an annular manner, and further transverse ribs which extend in a direction which run parallel or substantially parallel to the narrow sides of the rectangular base surface. In this area, transverse ribs are also available which contribute to the mechanical stabilization.

Die Bauhöhe der Rippen, die sich von der Staubraumfilterseite aus gesehen in Richtung Staubraum erstreckt, übersteigt die Bauhöhe der Querrippen in einer Ausführungsform um mehr als das Dreifache, bevorzugt um mehr als das Fünffache. Es hat sich herausgestellt, dass selbst im Fall von Kunststoffmaterial einerseits eine hinreichende mechanische Stabilität erzielt wird. Andererseits behindern die Querrippen gewünschte Luftströmungen praktisch nicht. Es wird so weiter verbessert die Aufgabe der Erfindung gelöst. Die Bauhöhe von Querrippen beträgt beispielsweise bis zu 5 mm, vorzugsweise bis zu 3 mm, besonders bevorzugt bis zu 2 mm. Die Bauhöhe der Querrippen beträgt bevorzugt wenigstens 0,5 mm, bevorzugt wenigstens 1 mm, um die gewünschte mechanische Stabilität auch dann zu gewährleisten, wenn der Rahmen aus Kunststoff besteht.The overall height of the ribs, which extends in the direction of the dust chamber seen from the dust chamber filter side, exceeds the overall height of the transverse ribs in one embodiment by more than three times, preferably by more than five times. It has been found that even in the case of plastic material on the one hand sufficient mechanical stability is achieved. On the other hand, the transverse ribs practically do not impede desired air flows. It is further improved the object of the invention achieved. The overall height of transverse ribs is for example up to 5 mm, preferably up to 3 mm, particularly preferably up to 2 mm. The height of the transverse ribs is preferably at least 0.5 mm, preferably at least 1 mm, in order to ensure the desired mechanical stability even when the frame is made of plastic.

Die Bauhöhe der Rippen beträgt bevorzugt wenigstens 10 mm, besonders bevorzugt wenigstens 12 mm, so zum Beispiel 15 mm und mehr. Durch eine solche Bauhöhe wird genügend Raum bereitgestellt, damit Luft durch die Luftführungskanäle in geeigneter Weise strömen kann, um so zuverlässig die Aufgabe der Erfindung lösen zu können.The overall height of the ribs is preferably at least 10 mm, more preferably at least 12 mm, for example 15 mm and more. By such a height is sufficient Space provided so that air can flow through the air ducts in an appropriate manner, so as to reliably solve the object of the invention can.

Der Filter ist vorzugsweise an den Rippen und / oder an den Querrippen befestigt. Der Filter wird so vor übermäßiger Belastung geschützt. Die Langlebigkeit des Bauteils wird so besonders zuverlässig gewährleistet. Darüber hinaus ist dann der Filter insbesondere auch an einem äußeren umlaufenden Rand des Rahmens befestigt. Die Befestigung kann durch Stoffschluss bereitgestellt sein, so zum Beispiel durch Kleben oder Schweißen. Alternativ oder ergänzend können ein oder mehrere formschlüssige Verbindungen vorhanden sein.The filter is preferably attached to the ribs and / or to the transverse ribs. The filter is thus protected against excessive load. The longevity of the component is guaranteed so particularly reliable. In addition, then the filter is in particular attached to an outer peripheral edge of the frame. The attachment may be provided by material adhesion, such as by gluing or welding. Alternatively or additionally, one or more positive connections may be present.

Der maximale Abstand zwischen zwei Rippen beträgt vorzugsweise nicht mehr als 30 mm, besonders bevorzugt nicht mehr als 25 mm, umso zu verhindern, dass ein Staubbeutel zwischen zwei Rippen gelangen und den entsprechenden Luftführungskanal verschließen kann. Der minimale Abstand zwischen zwei Rippen beträgt bevorzugt wenigstens 4 mm, besonders bevorzugt wenigstens 6 mm, um eine Breite von Luftführungskanälen bereitzustellen, die erwünschte Luftströmungen nicht übermäßig ungünstig behindern.The maximum distance between two ribs is preferably not more than 30 mm, more preferably not more than 25 mm, so as to prevent a dust bag from getting between two ribs and closing the corresponding air duct. The minimum distance between two ribs is preferably at least 4 mm, more preferably at least 6 mm in order to provide a width of air ducts which do not unduly hinder desirable airflows.

Das Verhältnis von Breite eines Luftführungskanals zur Höhe eine Luftführungskanals liegt vorzugsweise zwischen 2:1 bis 1:2, um so einerseits zu vermeiden, dass ein Bereich eines Staubbeutels derart zwischen Rippen gelangen kann, dass der entsprechenden Luftführungskanal verschlossen wird. Andererseits wird so ein günstiger Querschnitt bereitgestellt, durch den sichergestellt wird, dass eine erwünschte Luftströmung nicht übermäßig behindert wird.The ratio of width of an air duct to the height of an air duct is preferably between 2: 1 to 1: 2, so as to avoid on the one hand that a region of a dust bag can pass between ribs such that the corresponding air duct is closed. On the other hand, such a favorable cross section is provided, which ensures that a desired air flow is not unduly impeded.

Zumindest eine Rippe oder ein Abschnitt einer Rippe steht gegenüber anderen Rippen der Luftführungskanäle in einer Ausführungsform auf der Seite hervor, die der Staubraumfilterseite gegenüberliegt. Es wird so erreicht, dass eine angrenzende Staubbeutelseite nicht eben auf den Rippen aufzuliegen vermag. Dies trägt dazu bei, dass regelmäßig Abstände zwischen einem Staubbeutel und Rippen verbleiben, durch die Luft hindurch gelangen kann. Hierdurch wird weiter verbessert erreicht, dass die Saugleistung eines Staubsaugers auch bei teilweise gefülltem Staubbeutel aufrecht erhalten werden kann. Der Rahmen ist für die Verwendung in einem gattungsgemäßen Staubsauger vorgesehen, also einem Staubsauger mit einem Staubraum, einer Eintrittsöffnung in den Staubraum, mit einer Einrichtung für das Anbringen eines Staubbeutels derart, dass über die Eintrittsöffnung angesaugte Luft in einen angebrachten Staubbeutel geleitet wird, mit einem Saugmittelraum mit einer Austrittsöffnung und zumindest einem darin befindlichen Saugmittel, insbesondere einem elektrisch antreibbaren Saugmittel für ein Ansaugen von Luft aus dem Staubraum. Der Rahmen befindet sich dann zwischen dem Staubraum und dem Saugmittelraum und zwar derart, dass Luft den Staubraumfilter passieren muss, um vom Staubraum in den Saugmittelraum gelangen zu können. Ein solcher Staubsauger kann optional ein oder mehrere der eingangs genannten Merkmale in beliebiger Kombination aufweisen und zwar insbesondere zusätzlich ein Eingriffsschutzelement, welches fest mit dem Staubsauger verbunden ist. In Strömungsrichtung der Luft gesehen befindet sich das Eingriffsschutzelement vorzugsweise hinter dem Staubraumfilter.At least one rib or portion of a rib protrudes from other ribs of the air ducts in an embodiment on the side opposite to the dust space filter side. It is achieved so that an adjacent dust bag side is not able to lie flat on the ribs. This helps to keep regular distances between a dust bag and ribs through which air can pass. This further improves that the suction power of a vacuum cleaner can be maintained even with partially filled dust bag. The frame is intended for use in a generic vacuum cleaner, so a vacuum cleaner with a dust chamber, an inlet opening into the dust chamber, with a device for attaching a dust bag such that air sucked in via the inlet opening is passed into an attached dust bag, with a Saugmittelraum with an outlet opening and at least one suction means therein, in particular an electrically driven suction means for sucking air from the dust chamber. The frame is then located between the dust chamber and the Saugmittelraum in such a way that air must pass through the dust chamber filter in order to get from the dust chamber into the Saugmittelraum can. Such a vacuum cleaner may optionally have one or more of the features mentioned in any combination and in particular additionally an engagement protection element which is firmly connected to the vacuum cleaner. Seen in the direction of flow of the air, the engagement protection element is preferably behind the dust chamber filter.

Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus den nachfolgend gezeigten Ausführungsbeispielen.Further advantages and embodiments of the invention will become apparent from the embodiments shown below.

Es zeigen:

  • Figur 1: dreidimensionale Darstellung eines Rahmens mit angebrachtem Staubraumfilter;
  • Figur 2: Aufsicht auf den Rahmen;
  • Figur 3: Seitenansicht des Rahmens.
Show it:
  • FIG. 1 : three-dimensional representation of a frame with attached dust chamber filter;
  • FIG. 2 : Supervision on the frame;
  • FIG. 3 Image: Side view of the frame.

Die Figur 1 zeigt einen Rahmen 1 mit einem porösen Staubraumfilter 2, der durch einen umlaufenden Rand 3 begrenzt ist und am Rahmen 1 vorzugsweise unlösbar angebracht ist. Der Rand 3 und der daran angebrachte Staubraumfilter 2 bilden die Staubraumfilterseite des Rahmens 1, die im Fall der Figur 1 rechteckig ist und die Grundfläche des Rahmens 1 darstellt. Die Grundfläche ist beispielsweise 12-18 cm lang und 8-12 cm breit.The FIG. 1 shows a frame 1 with a porous dust chamber filter 2, which is bounded by a peripheral edge 3 and preferably attached to the frame 1 insoluble. The edge 3 and attached thereto dust chamber filter 2 form the dust space filter side of the frame 1, which in the case of FIG. 1 is rectangular and represents the base of the frame 1. The base is for example 12-18 cm long and 8-12 cm wide.

Der Rahmen 1 weist eine Vielzahl von Luftführungskanälen zur Führung von Luft vom Staubraum eines zugehörigen Staubsaugers zum Staubraumfilter bzw. der Staubraumfilterseite 2, 3 auf, die jeweils an zwei Seiten durch Rippen 4, 4a, 4b, 4c begrenzt sind. Im Fall der Figur 1 werden 16 Luftführungskanäle 4, 4a, 4b, 4c dargestellt. Die Anzahl an Luftführungskanälen kann jedoch variieren und beispielsweise bei einem Aufbau wie er in der Figur 1 gezeigt wird zweckmäßigerweise zwischen 10 und 20 liegen.The frame 1 has a plurality of air ducts for guiding air from the dust chamber of an associated vacuum cleaner to the dust chamber filter or the dust space filter side 2, 3, which are each bounded on two sides by ribs 4, 4a, 4b, 4c. In the case of FIG. 1 16 air ducts 4, 4a, 4b, 4c are shown. The number of However, air ducts may vary and, for example, in a structure like that in the FIG. 1 it will be expedient to lie between 10 and 20.

Die durch die Rippen 4, 4a, 4b, 4c gebildeten Luftführungskanäle sind zu der Seite offen zugänglich, die von der Staubraumfilterseite 2, 3 abgewandt ist, und damit von der Seite zugänglich, die dem Staubraum in einem Staubsauger zugewandt ist. An diese offene Seite der Luftführungskanäle grenzt während des Betriebs eines zugehörigen Staubsaugers ein Staubbeutel. Die Rippen 4, 4a, 4b, 4c dienen dann als Abstandshalter zwischen dem Staubraumfilter 2 und einem nicht dargestellten Staubbeutel.The air ducts formed by the ribs 4, 4a, 4b, 4c are openly accessible to the side facing away from the dust space filter side 2, 3, and thus accessible from the side facing the dust space in a vacuum cleaner. A dust bag is adjacent to this open side of the air ducts during operation of an associated vacuum cleaner. The ribs 4, 4a, 4b, 4c then serve as spacers between the dust chamber filter 2 and a dust bag, not shown.

Die Luftführungskanäle, die an den Schmalseiten der rechteckige Grundfläche 2, 3 einmünden, weisen Eintrittsfenster auf, die durch Rippenenden 5 und Stege 6 sowie durch den daran angrenzenden Bereich des Randes 3 begrenzt sind. Ein jedes Eintrittsfenster bildet eine Öffnung, die durch einen Steg 6, also mit einem Rand auf der Seite versehen ist, die der Staubraumfilterseite 2, 3 gegenüberliegt. Durch einen solchen Steg 6 wird vermieden, dass ein darauf aufliegender Staubbeutel in den durch ein solches Fenster bereitgestellten Öffnungsbereich hinein gelangen kann. Im Fall der Figur 1 gibt es an jeder Schmalseite insgesamt je vier Eintrittsfenster. Die Zahl der Eintrittsfenster kann allerdings variieren und beispielsweise zwischen zwei und acht liegen. Auch können derartige Fenster an den Längsseiten vorgesehen sein. In einer Ausführungsform ist es weiter möglich, Stege 6 auch an anderen Stellen entlang der Luftführungskanäle anzuordnen, um zu vermeiden, dass ein Staubbeutel zwischen Rippen 4, 4a, 4b, 4c gelangen kann.The air ducts, which open at the narrow sides of the rectangular base 2, 3, have inlet windows, which are bounded by rib ends 5 and webs 6 and by the adjoining region of the edge 3. Each entrance window forms an opening which is provided by a web 6, that is to say with an edge on the side which lies opposite the dust space filter side 2, 3. By such a web 6 is avoided that a dust bag resting thereon can get into the provided by such a window opening area. In the case of FIG. 1 There are four entrance windows on each narrow side. However, the number of entry windows may vary, for example between two and eight. Also, such windows may be provided on the long sides. In one embodiment, it is also possible to arrange webs 6 at other locations along the air ducts in order to avoid that a dust bag between ribs 4, 4a, 4b, 4c can get.

Es hat sich als strömungsgünstig herausgestellt, Eintrittsfenster, die an den Eckbereich einer Schmalseite angrenzen, wie in der Figur 1 gezeigt breiter auszugestalten im Vergleich zu dazwischen liegenden Eintrittsfenstern. So beträgt die Breite von zwei äußeren Eintrittsfenster an einer jeden Schmalseite bei einem Rahmen wie in Figur 1 gezeigt bevorzugt 20 bis 30 mm, so zum Beispiel 23 mm. Die Breite der Eintrittsfenster, die dazwischen liegen, beträgt dann beispielsweise 10-20 mm, so zum Beispiel 15 mm.It has proven to be streamlined, inlet windows, which adjoin the corner of a narrow side, as in the FIG. 1 shown to be wider in comparison to intermediate entry windows. Thus, the width of two outer entrance windows on each narrow side in a frame is as in FIG FIG. 1 shown preferably 20 to 30 mm, for example 23 mm. The width of the entrance windows, which are in between, is then for example 10-20 mm, for example 15 mm.

Die durch Enden von Rippen gebildeten Fensterbegrenzungen 5 eines jeden Eintrittsfensters stehen von der Staubraumfilterseite 2, 3 senkrecht ab. Dadurch stehen die durch die Eintrittsfenster bereitgestellten Durchtrittsflächen ebenfalls senkrecht von der Staubraumfilterseite 2, 3 ab. Die Eintrittsfenster erstrecken sich wie dargestellt vom Rand 3 aus und zwar angrenzend an den Staubraumfilter 2.The window boundaries 5 of each entrance window formed by the ends of ribs project perpendicularly from the dust space filter side 2, 3. As a result, the passage areas provided by the entry windows are also perpendicular to the dust space filter side 2, 3 off. As shown, the entrance windows extend from the edge 3, adjacent to the dust space filter 2.

Die Rippen 4, 4a, 4b, 4c stehen senkrecht von der Staubraumfilterseite 2, 3 ab. Rippen 4a, 4b weisen jeweils einen ersten, außen liegenden Abschnitt 4a auf, der parallel zu benachbarten, geradlinig verlaufenden Rippen 4, 4c verläuft oder aber zu benachbarten Abschnitten 4a und/ oder Bereichen von Seitenwänden 9 des Rahmens. Die Rippen 4a, 4b weisen einen innenliegenden, derart abknickenden Abschnitt 4b auf, dass der Abschnitt 4b zur Mitte hin den Abstand zu einer benachbarten Rippe 4, 4c kontinuierlich und wie in Figur 1 gezeigt gleichmäßig verkleinert. Luftführungskanäle weisen daher einen ersten außen liegenden Abschnitt mit gleichbleibendem Querschnitt und einen sich daran anschließenden Abschnitt mit einem sich verjüngenden Querschnitt auf. Genauer gesagt verringert sich dann die Breite eines jeden Luftführungskanals zur Mitte hin. Ein jeder außen liegende Abschnitt einer Rippe 4, 4a, 4b, 4c grenzt mit einem Ende an den Rand 3 des Rahmens 1 an und ist mit diesem fest verbunden. Die Abschnitte 4a sind vorzugsweise 1,5 cm lang. Luftführungskanäle behindern vom Rand 3 ausgehend daher zunächst entlang einer Strecke von 1,5 cm eine Luftströmung nicht aufgrund einer sich verringernden Kanalbreite. In diesem Bereich kann Luft bereits durch den Filter 2 hindurch in den Saugmittelraum gelangen. Durch die nachfolgende Verjüngung eines jeden Luftführungskanals tritt entsprechend weniger Luft hindurch. Die Luftführungskanäle werden wie dargestellt an einer (in der Figur 1 unteren) Seite durch den Staubraumfilter 2 begrenzt und zwar vollständig wie auch die außen liegenden Abschnitte der Luftführungskanäle, die einen gleichbleibenden Querschnitt, also eine gleichbleibende Breite aufweisen.The ribs 4, 4a, 4b, 4c are perpendicular from the dust space filter side 2, 3 from. Ribs 4a, 4b each have a first, outboard portion 4a which is parallel to adjacent rectilinear ribs 4, 4c or to adjacent portions 4a and / or portions of side walls 9 of the frame. The ribs 4a, 4b have an inner section 4b bent in such a way that the section 4b towards the center continuously separates the distance to an adjacent rib 4, 4c and as in FIG FIG. 1 shown evenly scaled down. Air ducts therefore have a first outer section with a constant cross-section and an adjoining section with a tapering cross-section. More specifically, then reduces the width of each air duct to the middle. Each outer portion of a rib 4, 4a, 4b, 4c is adjacent to one end of the edge 3 of the frame 1 and is firmly connected thereto. The sections 4a are preferably 1.5 cm long. Air ducts hinder from the edge 3, therefore initially along a distance of 1.5 cm an air flow not due to a decreasing channel width. In this area, air can already pass through the filter 2 into the suction agent space. As a result of the subsequent tapering of each air duct, correspondingly less air passes through. The air ducts are as shown at one (in the FIG. 1 Lower) side limited by the dust chamber filter 2 and indeed completely as well as the outer sections of the air ducts, which have a constant cross-section, ie a constant width.

Rippen 4, 4a, 4b, 4c weisen an der dem Staubraum zugewandten Seite ein oder mehrere zum Staubraum hin offene, halbkreisförmige Nuten 7 auf, die der Staubraumfilterseite 2, 3 gegenüberliegt und zwar vorzugsweise bei den innen liegenden Abschnitten 4b der Luftführungskanäle, die sich verjüngende Querschnitte aufweisen, da diese Abschnitte leichter beeinträchtigt werden als die außen liegenden Abschnitte, bei denen sich der Querschnitt sowie die Breite nicht verändert. Der Durchmesser eines solchen Halbkreises liegt vorzugsweise zwischen 3 und 10 mm, um die angestrebte Wirkung einerseits zuverlässig zu erzielen und andererseits den Rahmen mechanisch nicht zu destabilisieren. Vorzugsweise weist eine Rippe ein bis zwei halbkreisförmige Nuten 7 auf. Rippen, die an den schmalen Seiten des Rahmens enden, sind vorzugsweise mit zwei halbkreisförmigen Nuten 7 versehen, da solche Rippen relativ lang sein können. Rippen, die von Längsseiten ausgehen, also von einer Seitenwand 9, weisen bevorzugt nur eine halbkreisförmige Nut 7 auf. Die außen liegenden Abschnitte 4a der Rippen 4,4, 4b, 4c sind vorzugsweise Luft undurchlässig und weisen auch keine Nuten 7 auf, um Luftverwirbelungen zu vermeiden, die die Leistungsfähigkeit des Staubsaugers vermindern könnten.Ribs 4, 4a, 4b, 4c have on the side facing the dust chamber one or more open to the dust chamber, semi-circular grooves 7, the dust space filter side 2, 3 opposite and preferably at the inner portions 4b of the air ducts, which tapers Have cross sections, as these sections are more likely to be affected than the outer sections, where the cross section and the width does not change. The diameter of such a semicircle is preferably between 3 and 10 mm in order to achieve the desired effect on the one hand reliably and on the other hand not mechanically destabilize the frame. Preferably, a rib has one to two semicircular grooves 7. Ribs attached to the narrow sides of the frame are preferably provided with two semicircular grooves 7, since such ribs may be relatively long. Ribs which originate from longitudinal sides, that is to say from a side wall 9, preferably have only a semicircular groove 7. The outer portions 4a of the ribs 4,4, 4b, 4c are preferably air impermeable and also have no grooves 7 to avoid air turbulence, which could reduce the performance of the vacuum cleaner.

Der Rahmen 1 weist Querrippen 8 mit sehr niedriger Bauhöhe von beispielsweise lediglich 1 bis 2 mm angrenzend an den Staubraumfilter 2 auf. Die Höhe der Rippen 4, 4a, 4b, 4c ist um ein Vielfaches größer als die Höhe der Querrippen 8 und zwar von der Staubraumfilterseite 2,3 aus gesehen. Insbesondere übersteigt die Höhe der Rippen 4, 4a, 4b, 4c wenigstens um ein Vierfaches, bevorzugt wenigstens um ein Fünffaches die Höhe der Querrippen 8. Die Höhe der Rippen 4, 4a, 4b, 4c ist also wesentlich höher als die Höhe der Querrippen 8. Innenliegende Querrippen 8 sind wie in der Figur 1 dargestellt ringartig angeordnet. Benachbart zu den schmalen Seiten der Grundfläche 2, 3 gibt es darüber hinaus Querrippen 8, die unter anderem an einer Seite mit den seitlichen Wänden 9 verbunden sind. Die Höhe der seitlichen Wände 9 ist geringer als die Höhe der angrenzenden Rippen 4c bzw. Rippenabschnitte 4a. Hierdurch wird auch an den Längsseiten ein Eintritt von Luft in die entsprechenden Luftführungskanäle hinein ermöglicht, obwohl die senkrecht von der Staubraumfilterseite 2, 3 abstehenden Wände 9 keine Eintrittsfenster umfassen, um so den Rahmen in Längsrichtung hinreichend und zuverlässig mechanisch zu stabilisieren. Die Wände 9 sind beispielsweise 0,8 bis 1,2 cm, so zum Beispiel 1 cm hoch und zwar von der Staubraumfilterseite 2, 3 ausgesehen. Im Vergleich dazu sind die Rippen 4, 4a, 4b, 4c vorzugsweise 2 bis 10 mm höher als die Höhe der Wände 9. Die Wände 9 weisen typischerweise eine Länge von10 bis 18 cm, so zum Beispiel eine Länge von ca. 13 cm bis 15 cm auf. Der Abstand zwischen den Wänden 9 beträgt typischerweise 8-12 cm, vorzugsweise 9-11 cm, so zum Beispiel 10 cm.The frame 1 has transverse ribs 8 with a very low overall height of, for example, only 1 to 2 mm adjacent to the dust chamber filter 2. The height of the ribs 4, 4a, 4b, 4c is greater by a multiple than the height of the transverse ribs 8 and seen from the dust space filter side 2.3. In particular, the height of the ribs 4, 4a, 4b, 4c exceeds at least four times, preferably at least five times, the height of the transverse ribs 8. The height of the ribs 4, 4a, 4b, 4c is thus substantially higher than the height of the transverse ribs 8 Internal transverse ribs 8 are as in FIG FIG. 1 shown arranged in a ring. Adjacent to the narrow sides of the base 2, 3 there are also transverse ribs 8, which are connected, inter alia, on one side with the side walls 9. The height of the side walls 9 is less than the height of the adjacent ribs 4c and rib sections 4a. In this way, an entry of air into the corresponding air ducts is made possible even on the long sides, although the vertically projecting from the dust chamber side 2, 3 walls 9 include no entrance window so as to stabilize the frame in the longitudinal direction sufficiently and reliably mechanically. The walls 9 are, for example, 0.8 to 1.2 cm, for example 1 cm high, namely from the dust chamber filter side 2, 3 looked. In comparison, the ribs 4, 4a, 4b, 4c are preferably 2 to 10 mm higher than the height of the walls 9. The walls 9 typically have a length of 10 to 18 cm, for example a length of about 13 cm to 15 cm up. The distance between the walls 9 is typically 8-12 cm, preferably 9-11 cm, for example 10 cm.

Rippen 4, 4a, 4b, 4c enden zumindest überwiegend bei einem inneren Ring 10, der durch eine senkrecht von der Grundfläche abstehende Wand gebildet wird und an den Staubraumfilter angrenzt. Diese Enden der Rippen 4, 4a, 4b, 4c sind einteilig mit der Wand 10 verbunden und enden vorzugsweise gleichmäßig verteilt um den Ring 10 herum, um gleichmäßige Strömungsverhältnisse vorteilhaft zu begünstigen. Somit werden auch diese inneren Enden der betroffenen Rippen stabil gehalten. Die Höhe der Wand 10 ist geringer als die Höhe der Rippen 4, 4a, 4b, 4c. Insbesondere ist die Höhe der Wand 10 darüber hinaus geringer als die Höhe der Wände 9. Die Höhe der Wand 10 beträgt vorzugsweise weniger als 10 mm und/oder mehr als 5 mm, um einerseits es der Luft zu ermöglichen, in den Bereich im Inneren des Rings 10 auch bei an den Rippen 4, 4a, 4b, 4c anliegendem, bereits teilweise gefülltem Staubbeutel gelangen zu können und um andererseits für hinreichende Stabilität zu sorgen. Der Ring 10 kann mit einem Steg 11 versehen sein, der an den Filter 2 angrenzt und der mittig einen Knopf 12 umfasst, um so die Lage des Staubraumfilters 2 zu stabilisieren. An dem Knopf 12 ist vorzugsweise der Staubraumfilter 2 befestigt und zwar insbesondere formschlüssig, um die Lage des Staubraumfilters 2 weiter zu stabilisieren und zwar unabhängig von der Langzeitstabilität von sonstigen Kleb- oder Schweißverbindungen zwischen dem Rahmen 1 und dem Staubraumfilter 2.Ribs 4, 4a, 4b, 4c terminate at least predominantly in an inner ring 10, which is formed by a wall projecting perpendicularly from the base surface and adjacent to the dust chamber filter. These ends of the ribs 4, 4a, 4b, 4c are integrally connected to the wall 10 and preferably ends evenly distributed around the ring 10 in order to promote favorable flow conditions advantageous. Thus, these too inner ends of the affected ribs held stable. The height of the wall 10 is less than the height of the ribs 4, 4a, 4b, 4c. In particular, the height of the wall 10 is less than the height of the walls 9. The height of the wall 10 is preferably less than 10 mm and / or more than 5 mm, on the one hand to allow the air in the area inside the Rings 10 even when at the ribs 4, 4a, 4b, 4c adjacent, already partially filled dust bag to arrive and on the other hand to ensure sufficient stability. The ring 10 may be provided with a web 11 adjacent to the filter 2 and centered with a knob 12 so as to stabilize the position of the dust chamber filter 2. The dust chamber filter 2 is preferably fastened to the knob 12, specifically in a form-fitting manner, in order to further stabilize the position of the dust chamber filter 2, regardless of the long-term stability of other adhesive or welded joints between the frame 1 and the dust chamber filter 2.

Der Rahmen 1 kann darüber hinaus noch über Haken, beispielsweise vier Haken 13 verfügen, die der Befestigung des Rahmens 1 in einem Staubsauger dienen.The frame 1 may also have hooks, for example, four hooks 13, which serve to secure the frame 1 in a vacuum cleaner.

Sämtliche Stege 6, 8, 11 sind maximal nur wenige Millimeter hoch, so zum Beispiel 0,5 bis 4 mm, vorzugsweise 1 bis 3 mm wie zum Beispiel 2 mm, um für eine mechanische Stabilisierung zu sorgen, ohne Luftströmungen im nennenswerten Umfang zu behindern. Die Stärke von Wänden, Rippen sowie Stegen beträgt 0,5-3 mm, vorzugsweise 1-2 mm.All webs 6, 8, 11 are at most only a few millimeters high, for example, 0.5 to 4 mm, preferably 1 to 3 mm, such as 2 mm, to provide mechanical stabilization without obstructing air currents to any appreciable extent , The thickness of walls, ribs and webs is 0.5-3 mm, preferably 1-2 mm.

Zumindest ein randseitiger Abschnitt einer jeden Rippe 4c steht gegenüber anderen Rippen 4, 4a, 4b der Luftführungskanäle auf der Seite hervor, die der Staubraumfilterseite 2, 3 gegenüber liegt, wie vor allem die Figur 3 verdeutlicht. Es wird so erreicht, dass eine angrenzende Staubbeutelseite nicht eben auf den Rippen 4, 4a, 4b, 4c aufzuliegen vermag. In der Figur 1 wird eine Ausführungsform gezeigt, bei der die an die jeweilige Wand 9 angrenzenden Enden der beiden Rippen 4c drei bis acht mm höher sind im Vergleich zu den Höhen der benachbarten Rippenabschnitte 4a. Zum Ring 10 hin fällt die Höhe der beiden sich gegenüberliegenden Rippen 4c vorteilhaft ab und zwar im Fall der Figur 1 kontinuierlich, bis beim Ring 10 die Höhen sämtlicher Rippen 4, 4a, 4b, 4c in einer Ausführungsform wieder gleich sind. Es ist aber auch möglich, dass die Höhe der Rippen 4c auch im Bereich des Rings 10 höher ist als die Höhe von benachbarten Rippen. Hierdurch wird ein angrenzender Staubbeutel zumindest an den Randbereichen durch die Rippen 4c bei den Wänden 9 etwas angehoben. Es kann darüber hinaus aufgrund des zur Mitte hin abfallenden Verlaufs einer jeden Rippe 4c ein Spalt auch zwischen Staubbeutel und Rippen 4c verbleiben, was weiter verbessert zur Aufrechterhaltung der Saugleistung eines Staubsaugers beizutragen vermag.At least one edge-side portion of each rib 4c protrudes from other ribs 4, 4a, 4b of the air ducts on the side opposite to the dust-space filter side 2, 3, such as above all FIG. 3 clarified. It is thus achieved that an adjacent dust bag side is not able to lie flat on the ribs 4, 4a, 4b, 4c. In the FIG. 1 an embodiment is shown in which the adjacent to the respective wall 9 ends of the two ribs 4 c are three to eight mm higher compared to the heights of the adjacent rib portions 4 a. Towards the ring 10, the height of the two oppositely disposed ribs 4c advantageously decreases, namely in the case of FIG. 1 continuously, until the ring 10, the heights of all the ribs 4, 4a, 4b, 4c in one embodiment are the same again. But it is also possible that the height of the ribs 4c in the region of the ring 10 is higher than the height of adjacent ribs. As a result, an adjacent dust bag is at least at the edge regions by the ribs 4c slightly raised at the walls 9. In addition, due to the slope of the middle of each rib 4c, a gap may also remain between the dust bag and the ribs 4c, which can further contribute to maintaining the suction performance of a vacuum cleaner.

Rippen 4, 4a, 4b, 4c enden innerhalb des Rahmens dann, wenn andernfalls eine zweckmäßige Mindestbreite von Luftführungskanälen unterschritten würde. Eine solche Mindestbreite eines Luftführungskanals beträgt vorzugsweise wenigstens 5 mm, besonders bevorzugt wenigsten 7 mm. Auf eine solche Mindestbreite zu achten, hat sich als vorteilhaft herausgestellt, umso die Leistungsfähigkeit eines Staubsaugers auch bei teilweise gefüllten Staubbeutel zuverlässig aufrecht erhalten zu können. Aus diesem Grund enden nicht sämtliche Rippen 4, 4a, 4b, 4c am Ring 10. Stattdessen gibt es im Fall der Figur 1 vier Rippen, die am ringförmig verlaufenden Steg 8 enden.Ribs 4, 4a, 4b, 4c end within the frame, if otherwise a suitable minimum width of air ducts would fall below. Such a minimum width of an air duct is preferably at least 5 mm, more preferably at least 7 mm. To pay attention to such a minimum width, has proven to be advantageous in order to maintain the performance of a vacuum cleaner reliably even with partially filled dust bag can. For this reason, not all of the ribs 4, 4a, 4b, 4c terminate at the ring 10. Instead, in the case of FIG. 1 four ribs which terminate at the annular web 8.

In einer Ausführungsform gibt es darüber hinaus ein Symbol wie zum Beispiel eine Pfeildarstellung 14 in einer oder beiden Wänden 9, die auf das besonders hohe Ende einer Rippe 4c hinweist. Dieses vorstehende Ende kann besonders leicht ergriffen werden, um beispielsweise den Rahmen mit dem daran befestigten Staubraumfilter einzusetzen oder aus einem Staubsauger herauszunehmen. Der Pfeil 14 erleichtert das Auffinden eines solchen Griffbereichs. Der Pfeil kann zugleich auf eine zutreffende Einbaurichtung hinweisen und/ oder ein Ergreifen des Griffbereichs hat zur Folge, dass nur noch in zutreffender Einbaurichtung eingebaut werden kann.In one embodiment, there is also a symbol, such as an arrow 14 in one or both walls 9, which indicates the extra high end of a rib 4c. This protruding end can be particularly easily taken to use, for example, the frame with the attached dust chamber filter or remove it from a vacuum cleaner. The arrow 14 facilitates finding such a grip area. The arrow can at the same time indicate an appropriate installation direction and / or a gripping of the grip area has the consequence that can only be installed in the correct installation direction.

Mit Ausnahme des Staubraumfilters besteht der in der Figur 1 gezeigte Rahmen aus einem einstückig hergestellten Kunststoffteil. Der Staubraumfilter 2 besteht aus einem Vlies, welches im Fall der Figur 1 an der dort gezeigten Unterseite durch Kleben oder Schweißen befestigt ist und zwar vorzugsweise auch an den Stegunterseiten, den Unterseiten der Rippen 4, 4a, 4b, 4c und/ oder der Unterseite der Wand 10, damit der Staubraumfilter 2 den Belastungen während eines Betriebs zuverlässig gewachsen ist.With the exception of the dust chamber filter consists in the FIG. 1 shown frame of a one-piece plastic part. The dust chamber filter 2 consists of a fleece, which in the case of FIG. 1 is attached to the underside shown there by gluing or welding and preferably also on the web bottoms, the undersides of the ribs 4, 4a, 4b, 4c and / or the underside of the wall 10, so that the dust chamber filter 2 the loads during operation reliably grown is.

Die Figur 2 zeigt eine Aufsicht auf den Rahmen nach Figur 1 und zwar vom Staubraum aus gesehen. Die Figur 3 zeigt eine Aufsicht auf eine Schmalseite des Rahmens mit Eintrittsfenstern. Hier wird eine Ausgestaltung gezeigt, bei der die Rippen 4c zwar abfallend zur Mitte hin verlaufen, aber stets höher sind als angrenzende andere Rippen, also auch beim Ring 10, der in der Figur 3 nicht sichtbar ist.The FIG. 2 shows a view of the frame FIG. 1 and seen from the dust room. The FIG. 3 shows a plan view of a narrow side of the frame with entrance windows. Here, an embodiment is shown in which the ribs 4c, although sloping run to the middle, but always higher than adjacent other ribs, including the ring 10, in the FIG. 3 is not visible.

Claims (11)

  1. Frame (1) for or with a dust space filter (2) for a vacuum cleaner; with the air guidance channels for carrying air from the dust space of the vacuum cleaner to the dust space filter side (2, 3) of the frame, wherein at least one channel is provided with an entry window (5, 6) and thus with an opening, which is provided with an edge (6) on the side which is opposite the dust space filter side (2, 3), and wherein the entry window (5, 6) adjoins the dust space filter side (2, 3) laterally, characterised in that the entry window or entry windows are aligned so that these project from the dust space filter side (2, 3) at right angles or at least essentially at right angles.
  2. Frame according to claim 1, characterised in that all channels are provided with an entry window.
  3. Frame according to one of the preceding claims, characterised in that the air guidance channels are formed by ribs (4, 4a, 4b, 4c) which preferably project at the right angles or at least essentially at right angles from the dust space filter side (2, 3).
  4. Frame according to one of the preceding claims, characterised in that the air guidance channels include a first outlying section with a cross-section which remains the same and a section attached thereto with a cross-section which narrows.
  5. Frame according to one of the preceding claims, characterised in that the first outlying cross-section is at least one cm long, preferably at least 1.5 cm long and/or not longer than 2 cm, preferably not longer than 1.7 cm.
  6. Frame according to one of the three preceding claims 3 - 5, characterised in that the ribs (4, 4a, 4b, 4c) are especially embodied through windows to let air pass through them and/or have grooves (7), especially semicircular grooves (7) on the side facing away from the dust space filter side.
  7. Frame according to one of the four preceding claims 3 - 6, characterised in that the ribs (4, 4a, 4b, 4c) with a large height are connected to one another by transverse ribs (8) with a lower height, wherein the transverse ribs (8) preferably adjoin the dust space filter side.
  8. Frame according to the preceding claims, characterised in that the height of the ribs (4, 4a, 4b, 4c) exceeds the height of the transverse ribs (8) by more than three times, preferably by more than five times.
  9. Frame according to one of the two preceding claims, characterised in that the filter (2) is able to be fastened to the ribs (4, 4a, 4b, 4c) and/or to the transverse ribs (8).
  10. Frame according to one of the seven preceding claims 3 - 9, characterised in that at least one rib or a section of a rib (4c) projects in relation to other ribs (4, 4a, 4b) on the side which lies opposite the dust space filter side (2, 3).
  11. A vacuum cleaner with a dust space, and entry opening into the dust space with a device for inserting a dust bag such that the air sucked in via the entry opening is directed into an inserted dust bag, with a suction medium space with an outlet opening and at least one suction means located therein, especially an electrically-driven suction means for sucking in air from the dust space, with a frame (1) according to one of the preceding claims between the dust space and suction means space.
EP12185014.3A 2011-09-26 2012-09-19 Frame for a dust space filter of a vacuum cleaner Active EP2572620B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011083436.2A DE102011083436B4 (en) 2011-09-26 2011-09-26 Frame for a dust filter of a vacuum cleaner

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EP2572620A1 EP2572620A1 (en) 2013-03-27
EP2572620B1 true EP2572620B1 (en) 2015-11-18

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EP12185014.3A Active EP2572620B1 (en) 2011-09-26 2012-09-19 Frame for a dust space filter of a vacuum cleaner

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
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EP3515272B1 (en) * 2016-09-26 2021-09-22 Aktiebolaget Electrolux Vacuum cleaner with improved air flow
EP3798433A1 (en) * 2019-09-24 2021-03-31 Andreas Stihl AG & Co. KG Motor-driven machining apparatus and air filter

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DE3517329A1 (en) 1985-05-14 1986-11-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vacuum cleaner with a disc filter
DE4317715C1 (en) 1993-05-27 1994-06-09 Siemens Ag Filter cassette for dust suction unit - comprises cassette-type basic frame to which is linked covering grid, with plate-shaped filter element fitted between frame and grid
FR2746289A1 (en) 1996-03-21 1997-09-26 Carre Francois Domestic vacuum cleaner with improved air flow and dust collection
DE29607245U1 (en) 1996-04-23 1996-07-11 Fakir-Werk GmbH & Co., 71665 Vaihingen vacuum cleaner
DE19801444B4 (en) * 1998-01-16 2007-07-26 BSH Bosch und Siemens Hausgeräte GmbH vacuum cleaner
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DE102011083436B4 (en) 2020-07-09
EP2572620A1 (en) 2013-03-27
DE102011083436A1 (en) 2013-03-28

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