EP4236748A1 - Filtre à cartouche pour dispositif d'aspiration et dispositif d'aspiration - Google Patents

Filtre à cartouche pour dispositif d'aspiration et dispositif d'aspiration

Info

Publication number
EP4236748A1
EP4236748A1 EP21794521.1A EP21794521A EP4236748A1 EP 4236748 A1 EP4236748 A1 EP 4236748A1 EP 21794521 A EP21794521 A EP 21794521A EP 4236748 A1 EP4236748 A1 EP 4236748A1
Authority
EP
European Patent Office
Prior art keywords
filter
immersion
cartridge filter
basket
area
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.)
Pending
Application number
EP21794521.1A
Other languages
German (de)
English (en)
Inventor
Stefan Vetter
Matthias Hermann
Mario de Filippo
Kerstin Becker
Felix Schneider
Mathias KLORMANN
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP4236748A1 publication Critical patent/EP4236748A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/12—Dry filters
    • A47L9/127—Dry filters tube- or sleeve-shaped

Definitions

  • the invention relates to a cartridge filter for a teat, the cartridge filter being provided for attachment to a filter basket of the teat.
  • the invention relates to a vacuum cleaner, comprising a blower device for generating a suction flow and a filter basket for holding a cartridge filter.
  • US 2010/0236014 A1 discloses an upright vacuum cleaner.
  • US 5,855,634 discloses a vacuum cleaner with a filter cage wherein an open-ended cylindrical filter is slipped over the filter cage.
  • EP 1 321 088 B1 discloses a vacuum cleaner with a locking device for an exhaust air filter.
  • EP 1 321 087 A1 discloses a locking structure for an exhaust air filter of a vacuum cleaner.
  • EP 1 997 411 A2 discloses a control unit for a centralized vacuum cleaner system.
  • GB 2 453 995 B discloses a teat with a filter which has an at least partially curved filter surface.
  • US 2009/0183337 A1 discloses a vacuum cleaner, a motor housing being provided which has a cavity, the cavity having at least part of a blower device and a filter element.
  • US 2002/0073663 A1 discloses a filter bagless vacuum cleaner system.
  • CN 106510549 B discloses a cartridge filter and associated holder.
  • CN 106618380 B also discloses a cartridge filter.
  • WO 2018/188597 A1 discloses a filter arrangement.
  • GB 2 574 564 A discloses a filter cylinder.
  • US Pat. No. 10,239,010 B2 discloses a filter device which includes a filter cage and a cartridge filter.
  • EP 3 597 091 A1 discloses a filter for a vacuum cleaner.
  • WO 2020/051165 A1 discloses a filter for a vacuum cleaner.
  • the object of the invention is to provide a cartridge filter of the type mentioned at the outset, which is constructed in a simple manner and which can be connected to the filter basket of a vacuum cleaner in a simple and reliable manner.
  • this object is achieved according to the invention in that a filter base is provided on which a fixing device for producing a detachable fixing connection of the cartridge filter to a counter-fixing device of the filter basket is arranged, and a filter medium area is provided which is attached to the filter ground is held inextricably, wherein a movement of the cartridge filter is provided as a whole relative to the filter basket for the production and release of the fixation connection.
  • the cartridge filter including a fixing device forms a unit and a single component. No additional components are required to fix the cartridge filter to the filter basket of the vacuum cleaner. Accordingly, no additional component can be lost, which is otherwise required for a fixation, for example.
  • the cartridge filter prefferably gripped and held outside the filter medium area, in particular for releasing the fixing connection from the filter basket. The operator then does not have to touch the cartridge filter on a dirty side of the filter medium area.
  • the filter bottom can be closed and thus made airtight.
  • An airtight connection with the filter basket in the area of the filter base can thus be achieved in a simple manner. This results in a structurally simple construction of both the cartridge filter and the filter basket.
  • the fixing device is arranged on a central area of the filter base, which lies on a central axis. This makes it easy to produce a fixing connection between the cartridge filter and the filter basket and easy to detach. Appropriate means for centering can be provided. This in turn is it easily possible for an operator to "blind" the fixation connection, i.e. without eye contact.
  • the cartridge filter has a central axis, which is a cylinder axis or a cone axis;
  • the filter media region comprises louvers extending at least approximately parallel or at an acute angle to the central axis;
  • the lamellae are contiguous;
  • the lamellae lie on a cylinder surface or cone surface;
  • an outer envelope of the filter media region lies on a first cylindrical shell or a first cone shell;
  • an inner envelope of the filter media region lies on a second cylindrical shell or second cone shell;
  • the first cylinder surface and the second cylinder surface or the first cone surface and the second cone surface are concentric to each other;
  • the filter medium area has a clean side which surrounds an interior space in particular in a cylindrical or conical manner, the interior space in particular being at least approximately hollow-cylindrical or hollow-conical;
  • the filter medium area has a dirty side, which surrounds the clean side in particular in a cylindrical or conical manner;
  • a ring element is connected to the filter medium area
  • a cylindrical or conical (including a truncated cone-shaped) design of the cartridge filter results in an optimized use of space for suction material filtering when the vacuum cleaner is operated, which is provided with the cartridge filter.
  • the filter medium area includes lamellae made of filter medium, then the result is a large filter-active surface of the filter medium area.
  • a closed filter medium area can be formed.
  • the envelope of the filter medium area lies on a cylinder jacket or cone jacket, then there is an effective use of space.
  • Process air loaded with suction material can be conducted through the filter medium area over a relatively large surface area.
  • the interior which is surrounded by the filter medium area, is used to place the cartridge filter on the filter basket. This is attached to the filter basket via the interior.
  • the ring element which is opposite to the filter base, in a sense holds the filter medium area together. It ensures a frontal seal. Due to an elastic design, the cartridge filter can be pressed via the ring element against a ring area of the teat when there is a fixing connection. An airtight function can thereby be achieved in this area, so that no short-circuit suction flow can flow past an upper side of the filter medium area. Furthermore, this results in a certain play for a fixing connection of the cartridge filter with the filter basket in an axial direction.
  • the cartridge filter is closed at one end via the filter base and, in particular, is closed in an airtight manner.
  • the cartridge filter with its filter medium area is designed for sucking in dry material. It is advantageous if the function of the filter medium area is not impaired by wet impingement with suction material. There is then no need to exchange the cartridge filter between a dry vacuuming process and a wet vacuuming process.
  • the central axis is coaxial with a rotation axis, with the fixing connection to the filter basket being able to be established and released by rotation about the rotation axis, with the filter medium region in particular being designed at least approximately rotationally symmetrically with respect to the central axis.
  • the fixing connection can be established by an operator without visual contact.
  • a handle bar for an operator is arranged on the filter base. An operator can then hold the cartridge filter as a whole using the handle bar.
  • the sucker When operating the sucker is a
  • the outside of the filter bottom is always exposed to dirt.
  • the adhesion of dirt can be minimized. In particular, this makes it possible in a simple manner to avoid dirt accumulation spaces and in particular undercuts on the filter base.
  • the filter base is designed in one piece or in one piece; the filter base has a bowl area on which the handle web is arranged; the handle bar is recessed; the grip bar is arranged and designed in such a way that the cartridge filter can be grasped and held as a whole by an operator; the grip bar is arranged and designed in such a way that it can be used to rotate the cartridge filter as a whole relative to the filter basket; the handle web has a first web portion and has a second web portion, the first web portion and the second web portion being spaced from one another.
  • the filter base is designed in one piece or even in one piece, the cartridge filter can be manufactured easily. No special effort is required for sealing the filter base.
  • the grip web can be arranged in such a way that it does not extend beyond an end face of the filter base and so that the cartridge filter points out. As a result, the flow conditions around the cartridge filter in particular are minimally influenced by the handle bar.
  • the handle web is arranged in a recessed manner and thus does not point beyond an outside of the filter base and thus of the cartridge filter.
  • first web part and the second web part are spaced apart from one another.
  • an immersion element can then be arranged on another side of the filter base, with the projection of this immersion element lying between the first web part and the second web part.
  • the corresponding part of the filter base or the filter base as a whole
  • the handle web area is minimized and thus also the area to which dirt can adhere.
  • the result is an easy-to-manufacture and easily detachable fixing connection between the cartridge filter and the filter basket of the teat if an immersion element for an immersion opening of the counter-fixing device of the filter basket is arranged on the filter base, or if an immersion opening for an immersion element of the counter-fixing device is arranged on the filter base Fixing device of the filter basket is arranged.
  • This makes it possible, for example, to achieve relative centering in a simple manner when producing a fixing connection.
  • the fixing device and the counter-fixing device can be designed as a bayonet fixing device or plug-and-turn connection device in a structurally simple manner .
  • the immersion element can be arranged on the cartridge filter and the corresponding immersion opening on the filter basket.
  • the kinematic reversal is also possible, in that an immersion opening is arranged on the filter base and that corresponding immersion elements are arranged on the filter basket.
  • the immersion element is designed as a pin and in particular a cylinder pin; the immersion element has a chamfer on the end face; the immersion element is positioned on a central axis; the immersion element is arranged on a first side of a wall of the filter base, which is opposite to a second side of the wall, with a grip web sitting on the second side of the wall.
  • a fixing connection can be achieved in a simple manner.
  • a plug-and-turn connection (bayonet connection) can be achieved in a simple manner.
  • the cartridge filter is placed on the filter basket and guided along it.
  • the pin of the immersion element can also be brought into the associated immersion opening in a simple manner.
  • the chamfering allows centering to be achieved in a simple manner.
  • a fixing connection with the filter basket can be established in a simple manner. In particular, only one axial displacement and one rotation is necessary, without an operator having to have visual contact with the fixing device or counter-fixing device, for example.
  • a simple structural design is obtained if the immersion element is arranged on the filter base and in particular on the same part of the filter base on which a handle web is also located.
  • a corresponding component can be produced, for example, integrally by an injection molding process, in particular in one piece.
  • the immersion element sits on the wall at a central area, and the handle web has a gap at the central area. This results in simple manufacturability, for example in an injection molding process.
  • first lug and one second lug are seated on the immersion element, which are designed in particular to form a bayonet connection as a fixing connection with the filter basket.
  • a plug-and-turn connection of the cartridge filter to the filter basket can be easily achieved via the lugs.
  • the lugs of the fixing device (or the counter-fixing device in the case of a kinematic reversal) can be guided in a simple manner on the counter-fixing device (or on the fixing device in the case of a kinematic reversal). An operator does not need to have eye contact with their noses.
  • the lugs can be brought into a fixing position, which is in particular a locking position, in a simple manner, in particular by rotation. When the detent position is reached, a corresponding click can indicate this acoustically to an operator.
  • the first lug and the second lug project transversely away from a jacket of the immersion element in relation to an axial direction; the first tab and the second tab are diametrically opposed; the first tab and the second tab are arranged at the same height with respect to the axial direction; the first nose and the second nose sit on a cylindrical or conical area of the immersion element and in particular on a pin.
  • a fixing connection can be established and released again in a simple manner.
  • a plug-and-turn connection can be produced in a simple manner. This in turn results in simple operability, so that an operator can easily connect the cartridge filter to the filter basket and can easily release the corresponding connection again.
  • the first lug and/or the second lug are cuboid and have at least one insertion chamfer for the counter-fixing device.
  • the insertion chamfers are used for guidance on the fixing device of the cartridge filter.
  • the insertion chamfers can be used to prevent a canting or the like in a guide for producing a fixing connection or for releasing a fixing connection impede.
  • the first nose and/or the second nose has an inclined surface in relation to an axial direction. This effectively prevents tilting when the nose moves.
  • the first lug and/or the second lug has a first insertion bevel and a second insertion bevel, the first insertion bevel being located on an underside which is on the first side of a wall which the immersion element sits, faces, and the second insertion chamfer is arranged on an upper side, which is opposite to the lower side.
  • canting can be effectively prevented when establishing a fixing connection, and canting can be prevented when releasing a fixing connection.
  • the first insertion chamfer serves to prevent tilting when producing a fixing connection
  • the second insertion chamfer serves to prevent tilting when loosening a fixing connection.
  • the immersion element is arranged on the cartridge filter and the associated immersion opening is arranged on the filter basket.
  • the kinematic reversal is also possible, in that the immersion element is arranged on the filter base and the immersion opening is arranged on the cartridge filter and thereby on the filter base of the cartridge filter.
  • the immersion opening has an oval or rectangular shape with a first width and a second width transverse to the first width, the first width being greater than the second width;
  • Abutment elements for lugs of the immersion element are arranged at the immersion opening, one abutment element providing an axial abutment; a plurality of contact elements and in particular exactly two contact elements are provided; the abutment elements each extend between a first end and a second end in an angular range; a first end of one abutment faces a second end of an adjacent and spaced second abutment; the abutment elements are positioned in an interior space of the cartridge filter; the contact elements each have a contact surface which is at a distance from the immersion opening; the abutment elements delimit a circular area which is spaced apart from the immersion opening; the contact elements extend over such an angular range that when the immersion element is immersed in the immersion opening, at least one nose is in contact; a contact element is designed as a guide element for
  • the filter bottom has a wall which is intended to rest against a wall of the filter basket and which provides a seal or part of a seal for airtight engagement with the filter basket.
  • an axial seal can be provided in a simple manner, which prevents short-circuit suction flows from being able to occur in a bottom area of the filter.
  • the wall of the filter base which is present anyway, can be effectively used to form a seal.
  • the seal is advantageously designed as an axial seal. This results in a simple construction of both the cartridge filter and the filter basket.
  • the fixing device is designed in relation to the counter-fixing device in such a way that when the cartridge filter is fixed to the filter basket, the wall of the filter base is pressed against the wall of the filter basket.
  • An effective seal can be achieved using an axial seal.
  • a suction device of the type mentioned which has a filter basket for holding a cartridge filter according to the invention, the filter basket having a counter-fixing device for the fixing device of the cartridge filter.
  • the suction device has the advantages already explained in connection with the cartridge filter according to the invention.
  • the fixing device of the cartridge filter and the counter-fixing device of the filter basket form a bayonet connection device.
  • This can then be produced and solved in a simple manner.
  • a simple and quick connection can be achieved by an operator through a plug-and-rotate connection of the cartridge filter to the filter basket. To do this, the user does not need to make eye contact with the fixing device or counter-fixing device. It is favorable if, when the cartridge filter is fixed to the filter basket, a wall of the filter base rests against a wall of the filter basket and an airtight seal is formed as a result. As a result, the cartridge filter and also the filter basket can be produced with little structural effort.
  • the filter basket is arranged in a suspended manner; the filter basket is intended to be immersed in an interior space of the cartridge filter; the filter basket has a casing area and a base area, the counter-fixing device being arranged on the base area and air openings being arranged on the casing area; the jacket area surrounds an interior space which is subjected to negative pressure via the blower device when the vacuum cleaner is in operation; the filter basket is at least approximately rotationally symmetrical to a central axis; the filter basket is cylindrical or conical.
  • the cartridge filter With a hanging arrangement of the filter basket, the cartridge filter can be easily replaced.
  • the cartridge filter with a large filter surface can be positioned in a corresponding suction material container. Effective filtering results. Due to the fact that the filter basket can be immersed in an interior space of the cartridge filter, it can be fixed to the teat in a simple manner.
  • the filter basket is adapted to the cartridge filter.
  • the filter basket is designed to be immersed in the interior of the cartridge filter. Accordingly, they must be adapted to each other.
  • the filter basket provides a positive element for the negative element of the interior.
  • the interior essentially corresponds to the filter basket, but as a hollow shape.
  • the filter basket is designed to be cylindrical or conical, and the cartridge filter is then designed to be correspondingly adapted.
  • an immersion opening for an immersion element of the fixing device of the cartridge filter is arranged on a bottom area of the filter basket, or an immersion element for an immersion opening on the filter bottom of the cartridge filter is arranged on the bottom area of the filter basket.
  • the immersion opening cooperates with the immersion element.
  • the dip opening is located at the bottom portion of the filter basket and the dip member is located at the cartridge filter.
  • the kinematic reversal is that the immersion element is arranged on the filter basket and the immersion opening is arranged on the filter base of the cartridge filter. Both options work basically the same.
  • the immersion opening has an oval or rectangular shape with a first width and a second width transverse to the first width, the first width being greater than the second width. This enables an engagement between the fixing device and the counter-fixing device in a simple manner when producing a fixing connection. Noses, which are arranged on the immersion element for the immersion opening, can be immersed through the immersion opening, but only in a certain area. If there are limits associated with this area, further dive through is prevented.
  • contact elements for lugs of the immersion element are then arranged on the immersion opening, with one contact element providing an axial contact.
  • the contact elements initially prevent the noses from being able to penetrate further. They provide an axial lock.
  • the abutment elements can then ensure guidance during a rotation with adjacent lugs, and thereby bring the lugs into a desired position, in order in particular to produce a snap-in connection.
  • a bayonet connection device can thus be implemented in a simple manner.
  • a plurality of contact elements and in particular precisely two contact elements are provided; the abutment elements each extend between a first end and a second end in an angular range; a first end of one abutment faces a second end of an adjacent and spaced second abutment; the abutment elements are positioned in an interior space of the filter basket; the contact elements each have a contact surface which is at a distance from the immersion opening; the abutment elements delimit a circular area which is spaced apart from the immersion opening; the contact elements extend over such an angular range that when the immersion element is immersed in the immersion opening, at least one lug is in contact.
  • Effective guidance for lugs and in particular exactly two lugs of the immersion element can be achieved by a plurality of contact elements and in particular with exactly two contact elements.
  • the provision of exactly two contact elements for exactly two lugs (in which case one lug is then assigned to one contact element) results in less constructional effort in the production of the cartridge filter and the filter basket.
  • a centering area for the immersion element can also be provided in an effective manner, for example. It can be ensured that the lugs cannot dip past the contact elements into an interior space of the filter basket.
  • the counter-fixing device can be designed in a structurally simple manner.
  • An abutment surface of the abutment elements which is at a distance from the immersion opening, allows the lugs to abut on an inside of the filter basket (in the interior) in a simple manner.
  • an axial fixation can be achieved in a simple manner.
  • the axial fixation allows can be achieved in particular by a positive fit between the lugs and a corresponding wall (a bottom area) of the filter basket.
  • the contact elements delimit a circular area which is at a distance from the immersion opening, centering can be achieved in a simple manner if an immersion element with a circular cross section is used.
  • a fixing connection can thereby be achieved in a simple manner.
  • a plug-and-turn connection can be established in a simple manner.
  • a contact element is designed as a guide element for a lug. This results in targeted guidance, in particular in order to produce an axial connection by positive locking.
  • a guide of the contact element as a guide element guides a lug onto a boundary wall of the immersion opening.
  • a lug is guided to an inside of the filter basket, so to speak, with abutment against the boundary wall being ensured. This results in an axial fixation by positive locking.
  • a stop for limiting the rotation of the cartridge filter relative to the filter basket is formed on a contact element.
  • the stop can be integrated into the respective system element. In principle, however, it is also possible for a corresponding stop to be separate from a contact element. It is favorable if latching elements which are flexibly connected are arranged on the immersion opening. As a result, a fixing position of a nose with respect to a rotation can be achieved in a simple manner. As a result, a corresponding fixing position against a rotation of the cartridge filter relative to the filter basket is also achieved.
  • a lug then ensures an axial fixation by means of a form fit and a rotational fixation can then be achieved via the latching elements.
  • a latching element is provided with a ramp device for axially guiding a lug.
  • the ramp device provides one or more sloping surfaces, which make it easier to reach a fixing position or to move out of a fixing position.
  • the ramp means has a first ramp which rises away from the associated stop and has a second ramp, subsequent to the first ramp, which falls away from the stop.
  • the second ramp allows the fixing position reach more easily and in particular reach without jamming. A fixing position can be canceled in a simple manner by the first ramp.
  • the second ramp is assigned a first insertion bevel on a nose of the immersion element of the cartridge filter, the first insertion bevel serving to facilitate the insertion of the nose towards the stop.
  • a corresponding fixing position or latching position between the stop and the latching element can be achieved, in particular with a reduced risk of tilting.
  • the cartridge filter is detachably held on the filter basket.
  • a distance between mutually facing sides of a first contact element and an opposite second contact element is greater than a width of a pin of the immersion element, so that the pin can be inserted into the immersion opening between the first contact element and the second contact element, and it is a
  • the distance between a first delimiting wall area and an opposite second delimiting wall area of the immersion opening is greater than a distance between opposite ends of lugs which are arranged on the immersion element, the first contact element being arranged on the first delimiting wall area and the second contact element being arranged on the second delimiting wall area, so that the lugs can be placed on the associated contact element.
  • the pin of the immersion element can be guided between the first contact element and the second contact element. This allows centering to be achieved in a simple manner.
  • this allows the central axes of the cartridge filter and the filter basket to be aligned at least approximately coaxially with one another in a simple manner.
  • This in turn can be easily a rotation axis for the rotation of the Provide the cartridge filter on the filter basket. Due to the fact that the distance between the first boundary wall area and the second boundary wall area is greater than the distance between opposing lugs, these can be brought to the contact elements, so that these in turn can perform a guiding function.
  • the lugs can then be connected to the contact elements during a plug-in process. During the rotation, the contact elements then guide the lugs.
  • the immersion element it is possible for the immersion element to be arranged on the cartridge filter and for the immersion opening to be arranged on the filter basket.
  • the kinematic reversal is also possible, in that the immersion element is arranged on the filter basket and the immersion opening is then correspondingly arranged on the cartridge filter.
  • the immersion element is or comprises a pin and in particular a cylinder pin; the immersion element has a chamfer on the end face; the immersion element is positioned on a central axis; at least and in particular exactly one first lug and one second lug are seated on the immersion element, which are designed in particular to form a bayonet connection as a fixing connection with the cartridge filter; the first tab and the second tab protrude transversely from a skirt of the immersion member with respect to an axial direction; the first tab and the second tab are diametrically opposed; the first tab and the second tab are arranged at the same height with respect to the axial direction; the first tab and the second tab are seated on a cylindrical or conical portion of the immersion member; the first lug and/or the second lug are cuboid and have at least one insertion chamfer for the counter-fixing device; to form an insertion chamfer, the first nose and/or the second nose has an inclined surface in an
  • the cartridge filter In order to create a fixing connection between the cartridge filter and the filter basket, it is provided to bring the immersion element into the immersion opening, with corresponding lugs, which are arranged on the immersion element, being placed on the corresponding contact elements, the cartridge filter rotates as a whole relative to the filter basket, and during this rotation the lugs are guided on the associated contact elements and are thereby guided to rest against a boundary wall of the immersion opening, and with further rotation the lugs are guided via associated locking elements up to a respective stop, in which case the respective locking elements then Noses in a position between that associated stop and hold the locking element rotatably.
  • a plug-and-turn connection (bayonet connection) can thus be produced in a simple manner.
  • the immersion element ensures centering.
  • the lugs are brought into contact with the corresponding contact elements.
  • a rotation of the cartridge filter as a whole relative to the filter basket leads to a rotary movement of the lugs on the respective contact element and thereby to a guide.
  • an axial fixation is achieved.
  • a rotation lock is achieved if the lugs are rotated further and the lugs are guided via the associated latching elements.
  • the respective stop limits the rotation in one direction and the associated locking element in the opposite direction. In the opposite direction, the turnstile can be released via the respective latching element if sufficient force is exerted. With a corresponding further rotation, the lugs can in turn be brought over the stop elements, and "unplugging" is then possible.
  • the cartridge filter is rotated as a whole to the filter basket, and starting from a fixing position of lugs, which are arranged on the immersion element, away from an associated stop by exerting a corresponding force via a
  • the latching element is rotated up to an associated stop element, the lugs are guided by further rotation on the stop element, and rotation takes place into a position in which the lugs are released and the cartridge filter can be removed from the filter basket, with the immersion element being removed from the immersion opening accordingly is dived.
  • the cartridge filter is connected in a plug-and-turn manner with the filter basket, with the plug-in process and the turning process relating to the lugs. When loosening, a twist-pull-out solution takes place. It rotates first and then unplugs.
  • FIG. 1 shows a sectional view of an embodiment of a vacuum cleaner according to the invention, in which a cartridge filter according to the invention is seated on a filter basket;
  • Figure 2 is a sectional view taken along line 2-2 of Figure 1;
  • FIG. 3 shows a perspective representation of an exemplary embodiment of a cartridge filter
  • FIG. 4 shows a perspective representation of an exemplary embodiment of a filter basket of the vacuum cleaner according to FIG. 1 (corresponding to area X in FIG. 1 without a cartridge filter);
  • FIG. 5 shows another perspective illustration (viewing direction B according to FIG. 4) of the filter basket according to FIG. 4;
  • FIG. 6 shows a bottom view of the filter basket according to FIG. 4 in direction A;
  • FIG. 7 shows a side view of the filter basket according to FIG. 4.
  • FIG. 8 shows a plan view of the filter basket according to FIG. 4 in the direction B there;
  • Figure 9 is a sectional view of the filter basket of Figure 4 taken along line 9-9 of Figure 8;
  • FIG. 10 is another sectional view of the filter basket taken along line 10-10 of Figure 8;
  • FIG. 11 shows a view of area X according to FIG. 1 (filter basket with cartridge filter fixed thereto), the direction C according to FIG. 1 being shown;
  • FIG. 12 shows a side view of the combination of filter basket and cartridge filter according to FIG. 11;
  • FIG. 13 shows a top view in the direction C according to FIG. 11 or FIG. 12 of the combination of filter basket and cartridge filter;
  • FIG. 14 shows a further top view in the direction D according to FIG. 11 and FIG. 12 of the combination of filter basket and cartridge filter according to FIG. 11;
  • Figure 15 is a sectional view of the combination taken along line 15-15 of Figures 13 or 14;
  • Figure 16 is another sectional view of the combination taken along line 16-16 of Figure 15;
  • FIG. 17 shows a further perspective view of the combination of filter basket and cartridge filter looking in direction D according to FIG. 11;
  • Figure 18 is a fragmentary view of the combination of Figure 11 taken in the plane indicated by line 18-18 in Figure 12;
  • FIG. 19 shows a top view of the cartridge filter according to FIG. 3 in the direction E;
  • FIG. 20 shows a further plan view of the cartridge filter according to FIG. 3 in the direction F;
  • FIG. 21 shows a first side view of a filter base of the cartridge filter according to FIG. 3;
  • FIG. 22 shows a further side view of the filter base according to FIG. 21;
  • FIG. 23 shows a first perspective illustration of the filter base according to FIG. 21;
  • FIG. 24 shows a further view of the filter base according to FIG. 21;
  • FIG. 25 shows a partial sectional illustration of a further embodiment with a cartridge filter which is fixed to a filter basket, in a view similar to FIG. 16;
  • Figure 26 shows the embodiment according to Figure 25 in a different representation similar to the representation according to Figure 15.
  • FIGS. 1 and 2 An exemplary embodiment of a suction cup, which is shown in a sectional view in FIGS. 1 and 2 and is denoted by 10, is a stand-alone suction cup.
  • the solution according to the invention can be implemented on other types of suction devices, such as a suction device that is integrated into a mobile machine such as a road sweeper.
  • a suction device that is integrated into a mobile machine such as a road sweeper.
  • the solution according to the invention can also be integrated into a stationary suction device.
  • the suction device 10 comprises a suction material container 12.
  • the suction material container 12 is mobilely supported on a subsurface via a wheel device 14.
  • a suction connection 16 is arranged on the suction material container 12 .
  • a suction hose or the like (not shown in the drawings) can be connected to these.
  • the suction material container 12 has an interior space 18 .
  • a suction nozzle 20 is seated on the suction connection 16 and protrudes into the interior 18 .
  • a suction head 22 is releasably positioned on the suction material container 12 .
  • a fixing device 24 is arranged on the suction head 22 for detachable fixing to the suction material container 12 and comprises, for example, latching flaps.
  • a fan device 26 is arranged in the suction head 22 .
  • the blower device 26 is used to generate a suction flow, which is indicated by arrows 28 in FIGS.
  • a suction hose if it is connected to a suction connection 16, can be pressurized accordingly via this suction flow in order to be able to suck in dust and the like.
  • the blower device 26 comprises (at least) one impeller 30.
  • This impeller 30 is rotatably held on a shaft 32 in a rotationally fixed manner.
  • the blower device 26 also includes a blower motor 34, which drives the shaft 32 in its rotational movement.
  • the blower motor 34 is in particular an electric motor. This is operated, for example, by mains electricity or by a rechargeable battery, in particular.
  • Process air is the exhaust air of the suction stream 28, which is dust-free. Furthermore, a guiding device for cooling air for the blower motor 34 is arranged on the suction head 22 .
  • a control device for controlling the operation of the suction device 10 and an operating device for operation by an operator are arranged on the suction head 22 .
  • the teat 10 is provided with a filter device 36 .
  • the filter device 36 is held on a filter holder 38 .
  • the filter holder 38 is in turn positioned on the suction head 22 .
  • the filter holder 38 it is also possible for the filter holder 38 to be held on the suction material container 12 .
  • the filter holder 38 is designed as a filter basket 40 (see also FIGS. 4 to 17).
  • the filter basket 40 is connected to an annular disk 42 or includes such an annular disk 42 (see, for example, Figure 4) and is suspended from the suction head 22 or the suction material container 12, so that it protrudes into the interior 18 of the suction material container 12 or in this is arranged.
  • the filter basket 40 is fixed via the ring disk 42 and is fixed, for example, to the suction head 22 .
  • the annular disk 42 can also be part of the suction head 22 .
  • the filter basket 40 is in particular designed in one piece and is preferably made of a plastic material.
  • the filter device 36 is designed as a cartridge filter 44 (FIG. 3, FIGS. 11 to 24).
  • the filter device 36 with the cartridge filter 44 serves to retain dust.
  • the vacuum cleaner 10 can be designed as a dry vacuum cleaner or as a wet/dry vacuum cleaner.
  • the cartridge filter 44 is designed in such a way that it enables both dry vacuuming and wet vacuuming. It is then not necessary to change the filter when switching from dry vacuuming to wet vacuuming or vice versa.
  • the filter basket 40 (FIGS. 4 to 10) is or comprises a basket area 46 which is held on the annular disc 42 and is connected to it in one piece, for example.
  • the basket area 46 has a bottom area 48 which is formed by a wall 50 . This bottom area 48 is spaced apart from the annular disk 42 in an axial direction 52.
  • the axial direction 52 is parallel or coaxial to the shaft 33.
  • the shaft 32 it is also possible for the shaft 32 to be oriented transversely to the axial direction 52 .
  • the axial direction 52 is oriented transversely and, in particular, perpendicularly to a base 54 on which the suction device 10 is properly set up.
  • the suction device 10 is set up on the base 54 via the wheel device 14 , it also being possible for it to be set up directly on the base 54 via the suction material container 12 , for example.
  • the annular disk 42 protrudes laterally beyond the basket area 46; the annular disk 42 has a larger diameter transversely to the axial direction 52 than the basket area 46.
  • a contact surface 56 (FIG. 4) for the cartridge filter 44 is provided on the annular disk 42 .
  • the wall 50 of the base area 48 is disc-shaped.
  • the wall 50 is oriented transversely and in particular perpendicularly to the axial direction 52 .
  • On this wall 50 sits a jacket wall 58, which runs between the wall 50 and the annular disk 42, and is thereby connected to the wall 50 and the annular disk 42 and is in particular connected in one piece.
  • the casing wall 58 extends parallel to the axial direction 52.
  • the filter basket 40 is at least approximately cylindrical with respect to the basket area 46 with a cylinder axis which is parallel to the axial direction 52 .
  • the filter basket 40 for example, to be conical and in the form of a truncated cone with a corresponding cone axis which is parallel to the axial direction 52 .
  • the shape of the filter basket 40 is adapted to the shape of the cartridge filter 44, as will be explained in more detail below.
  • the jacket wall 58 surrounds an interior space 60.
  • the interior space 60 is delimited in the axial direction 52 by the wall 50 of the bottom region 48. Opposite it is open on the ring disk 42 via an opening 62 .
  • the opening 62 and thus also the interior 60 is in direct fluid communication with the blower device 26. If this generates a suction flow, then this suction flow acts in the interior 60; when the teat 10 is in operation, the interior space 60 is subjected to negative pressure.
  • the interior space 60 has approximately a hollow-cylindrical shape.
  • the corresponding interior space 60 has a hollow conical shape and in particular a hollow truncated cone shape.
  • the shell wall 58 is provided with a plurality of spaced openings 64 .
  • An opening 64 is embodied in particular as a slit and is oriented parallel to the axial direction 52, for example.
  • the openings 64 are continuous and fluidly connect the interior 60 to the interior 18 of the suction material container 12, so that a suction flow can be applied to the suction material container 12 (or a filter bag accommodated in the suction material container 12) and to the suction connection 16 with the suction flow generated by the blower device 26 is allowed through the filter basket 40.
  • the openings 64 are distributed uniformly on the casing wall 58 in particular in a circumferential direction with respect to the axial direction 52 .
  • a jacket region 66 is formed by the jacket wall 58, which produces the interior space 60 and on which the air openings 64 are arranged.
  • the cartridge filter 44 has a fixing device 68 for fixing the cartridge filter 44 to the filter basket 40 of the teat 10 .
  • the filter basket 40 has a counter-fixing device 70 which cooperates with the fixing device 68 of the cartridge filter 44 .
  • the counter-fixing device 70 of the filter basket 40 includes an immersion opening 72 which is arranged on the bottom area 48 .
  • This immersion opening 72 is a continuous opening from an exterior space into the interior space 60.
  • the immersion opening 72 is arranged centrally and lies on a central axis 74 of the filter basket 40.
  • the central axis 74 is parallel or coaxial to the axial direction 52.
  • the central axis is 74 coaxial to a corresponding axis of rotation.
  • the opening 64 in the bottom area 48 of the filter basket 40 is delimited by a delimiting wall 76 .
  • the boundary wall 76 is part of the wall 50 of the base area 48.
  • the boundary wall 76 surrounds the opening 64.
  • a first contact element 80 is arranged on a first boundary wall region 78 .
  • a second contact element 84 is arranged on a second boundary wall area 82 (compare, for example, FIG. 8).
  • the first bearing element 80 and the second bearing element 84 each extend over an angular range along the boundary wall 76 at the opening 64.
  • the first bearing element 80 and the second bearing element 84 are positioned in the interior space 60 (compare FIGS. 9 and 10).
  • the first contact element 80 and the second contact element 84 are spaced apart from one another.
  • the first contact element 80 and the second contact element 84 each have a contact surface 86 (FIG. 10), which is used to contact a nose of the fixing device 68 .
  • the first contact element 80 and the second contact element 84 form with their respective contact surface 86 a blocking element for mobility in the axial direction 52 towards the annular disk 42 .
  • the first abutment member 80 has a first side 88a facing a corresponding second side 88b of the second abutment member 84 .
  • the second side 88b of the second contact element 84 faces the first side 88a of the first contact element 80 .
  • the first side 88a and the second side 88b are spaced from each other with a corresponding opening therebetween.
  • the contact surface 86 is spaced apart in the axial direction 52 from an underside 90 of the bottom area 48 of the filter basket 40.
  • the first contact element 80 and the second contact element 84 are provided with a ramp 92 on the contact surface 86, which serves to guide a corresponding nose of the fixing device 68 (compare Figure 6 or Figures 9 and 10).
  • the ramp 92 is formed by an inclined surface in the axial direction 52 .
  • the first contact element 80 is provided with a first stop 94 and the second contact element 84 is provided with a second stop 96 .
  • the first stop 94 and the second stop 96 are each designed as a rotary lock.
  • first stop 94 and the second stop 96 may be separate from the contact elements 80 and 84, respectively.
  • a respective contact surface 100 is formed on an inner side 98 of the bottom region 48, which faces away from the underside 90, and is assigned to the respective contact element 80 or 84.
  • the respective contact elements 80, 84 serve to guide a corresponding nose of the fixing device 68 to this contact surface 100.
  • the respective contact surface 100 lies between the associated stop 94 or 96 and a latching element 102 (compare in particular FIG. 8).
  • the respective latching element 102 is resiliently connected to the wall 50 and thereby to the boundary wall 76 .
  • it is attached in a resilient or flexible manner in such a way that it has a certain mobility parallel to the axial direction 52 .
  • the respective latching element 102 is separated by a gap 104 facing away from the associated stop 94 or 96 in order to enable the flexible connection.
  • a latching element 102 is provided with a first ramp 106, which faces the associated stop 94 or 96 and rises in relation to this. Furthermore, the latching element 102 has a second ramp 108 which faces that contact element 80, 84 which acts as a guide for the corresponding nose (this will be explained in more detail below). The second ramp 108 is connected to the first ramp 106 and descends.
  • a corresponding ramp device of the respective latching element 102 with the first ramp 106 and the second ramp 108 is wedge-shaped as a result, with a wedge tip pointing towards the annular disk 42 in the axial direction 52 .
  • a receiving space 110 for a corresponding nose of the fixing device 68 is formed between the latching element 102 and the associated stop 94, 96; this is explained in more detail below.
  • a nose which is located in its associated receiving space 110, is held in a rotationally fixed manner.
  • the associated stop 94, 96 blocks rotation in one direction, and the associated latching element 102 via the ramp device with the first ramp 106 and the second ramp 108 blocks rotation in the opposite direction.
  • a fixation connection is thereby achieved.
  • the fixing connection can be achieved in that the associated lug is guided in the associated contact element 80, 84 and is brought to the contact surface 100 and is then guided from there via the ramp device of the associated latching element 102 by applying appropriate force.
  • the flexible connection and at the same time movable connection of the latching element 102 enables a transfer with a corresponding expenditure of force.
  • a lug When a lug is positioned in the receiving space 110, it can then be locked in as it were between the associated stop 94 or 96 and the associated latching element 102.
  • a "latching click" in particular is emitted, so that an operator hears that a position has been reached, and in particular a latching position.
  • This fixing position can be released by a corresponding exertion of force with a rotation in the opposite direction, in which case the latching element 102 is then correspondingly passed over with the associated lug.
  • the cartridge filter 44 comprises a filter base 112 and a filter medium area 114 which is arranged on the filter base 112 (FIG. 3, FIGS. 19 to 24, only part of the filter base 112 being shown in FIGS. 19 to 24).
  • FIGS. 11 to 16 the cartridge filter 44 is shown in a fixing connection with the filter basket 40.
  • FIG. 11 the cartridge filter 44 is shown in a fixing connection with the filter basket 40.
  • the filter base 112 includes an annular portion 116 on which a bowl portion 118 is seated.
  • Shell portion 118 is shown in Figures 19-24.
  • the shell area 118 is in particular formed in one piece. It is adhesively bonded to the ring area 116, for example.
  • the filter media portion 114 includes filter media and is seated on the annular portion 116. It extends toward a central axis 120, the central axis 120 being an axial axis.
  • the filter medium of the filter medium area 114 is designed in such a way that air can flow through the filter medium area 114 and dust particles are retained (“filtered out”) down to a minimum size.
  • the cartridge filter 44 and the filter medium of the filter medium area 114 are preferably designed in such a way that the cartridge filter 44 can be used both for a dry suction process of the vacuum cleaner 10 and for a wet suction process.
  • the filter medium of the filter medium area 114 is not rendered unusable or destroyed in the event of wet loading.
  • the cartridge filter 44 it is also possible for the cartridge filter 44 to be used only for purely dry suction of the suction device 10 or only for purely wet suction of the suction device 10 .
  • the filter medium region 114 has an outer side 122 and an inner side 124.
  • the outer side 122 forms a dirty side 126 and the inner side 124 forms a clean side 128 of the cartridge filter 44.
  • the dirty side 126 (the outer side 122) annularly surrounds the clean side 128 (the inner side 124); compare, for example, Figures 15 and 16.
  • the cartridge filter 44 has a ring element 130 which corresponds to the ring area 116 and is spaced apart in the central axis 120 and in particular is spaced parallel to the ring area 116 .
  • the filter medium area 114 extends between the ring element 130 and the ring area 116 and is fixed to the ring element 130 and to the ring area 116 in each case and in particular is permanently fixed in such a way that a loosening usually means the cartridge filter 44 is destroyed or rendered unusable.
  • the filter medium is arranged in lamellae 132, which correspondingly extend between the ring element 130 and the ring region 116 and are each firmly connected to them.
  • the lamellae 132 are continuous and form a continuous filter medium area 114.
  • the effective filter surface is enlarged via the lamellae 132.
  • the filter medium area 114 is cylindrical and the lamellae 132 extend at least approximately parallel to the central axis 120. It is also possible, for example, for the filter medium area 114 to have a conical shape. The lamellae 132 are then at an acute angle to the central axis 120.
  • the filter medium area 114 is at least approximately rotationally symmetrical to the central axis 120 .
  • approximately means, for example, with respect to the envelope surfaces of the filter medium area 114; due to the lamellar design of the filter medium area 114, there is no strict rotational symmetry to the central axis 120.
  • the lamellae 132 lie on a cylinder surface or, for example, a cone surface. Accordingly, an envelope of the filter media region 114 on the outside 122 lies on a first cylinder shell 134a, and an envelope of the inside 124 of the filter media region 114 lies on a second cylinder shell 134b.
  • the corresponding jackets are cone jackets (particularly truncated cone jackets).
  • the first cylinder shell 134a and the second cylinder shell 134b are concentric with each other. (In the case of a cone-shaped configuration, the respective cone envelopes are concentric with one another.)
  • the filter media region 114 has a uniform thickness perpendicular to the central axis 120 relative to the exterior 122 and interior 124 envelopes.
  • the filter base 112 is designed to be airtight in such a way that air can only flow through the filter medium area 114 .
  • the ring element 130 is designed to be airtight.
  • the ring element 130 provides an annular contact surface 136 (compare FIG. 15) for contact with the contact surface 56 of the annular disk 42 .
  • the ring element 130 is designed so elastically or as a seal, or a seal is arranged on it, that when the ring element 130 rests with its contact surface 136 on the ring disk 42, there is no "short-circuit" air flow in this area at the filter medium area 114 can flow.
  • the inside 124 surrounds an interior space 138 of the cartridge filter 44.
  • the cartridge filter 44 is designed in such a way that its interior space 138 can be slipped onto the filter basket 40 .
  • the dimensions of the interior 138 are adapted to the dimensions of the filter basket 40 .
  • the filter basket 40 is of cylindrical design, and the interior space 138 is correspondingly of a hollow-cylindrical design.
  • the interior space 138 must be correspondingly conical.
  • the filter basket 40 When the cartridge filter 44 is fixed to the filter basket 40, the filter basket 40 has its jacket wall 58 and the bottom area 48 immersed in the interior space 138 of the cartridge filter 44 (compare FIGS. 15 and 16).
  • the central axis 120 of the cartridge filter 44 and the central axis 74 of the filter basket 40 are essentially concentric with one another.
  • the cartridge filter 44 forms a part (element) for the teat 10 that can be handled as a whole.
  • the ring element 130 is firmly connected to the filter medium area 114 .
  • On the filter base 114 are in turn the ring area 116 and the shell portion 118 connected to each other. It is not intended that a non-destructive detachment of individual parts of the cartridge filter 44 is possible when the connection is established.
  • the cartridge filter 44 is a one-piece unit that can be handled as a whole.
  • the shell area 118 can be seen as a cover for the ring area 116 which is permanently connected to the ring area 116 .
  • the shell area 118 of the filter base 112 has a shell base 140 which is at least approximately flat in the exemplary embodiment.
  • a wall 142 is arranged on the shell base 140 surrounding it, which wall forms a raised edge in relation to the shell base 140 (compare FIG. 23).
  • the shell area 118 is connected to the ring area 116 at the raised edge.
  • a plurality of spaced tabs 144 are seated on the wall 142 .
  • An interior space 146 is formed between the shell base 140 and the wall 142 .
  • the shell area 116 is correspondingly designed in the form of a shell.
  • the tray floor 140 has a first side 148 and an opposite second side 150.
  • the interior space 146 is defined by the second side 150 of the tray floor 140.
  • a handle bar 152 On the second side 150 of the shell base 140 there is a handle bar 152 (compare, for example, FIGS. 19 and 23).
  • the handle bar 152 serves to grasp and hold the cartridge filter 44 as a whole (compare FIG. 3).
  • the cartridge filter 44 can be held via the handle web 152 , in which case an operator then comes into minimal contact with the filter medium area 114 and in particular with the outside 122 as the dirty side 126 .
  • the handle web 152 is arranged and designed such that it can be used to create a fixing connection between the cartridge filter 44 and the filter basket 40 as a filter holder 38 by moving and in particular rotating the cartridge filter 44 relative to the filter basket 40 . Accordingly, such a fixation compound can be accessed by an operator through the Loosen the cartridge filter 44 on the handle bar 152 with a corresponding counter-movement.
  • the handle web 152 includes a first web portion 154a and a second web portion 154b.
  • the first web portion 154a and the second web portion 154b are connected to the tray bottom 140 and the wall 142, respectively. They are spaced apart; there is a gap 156 between them.
  • the gap 156 is arranged in a central area 158 of the shell base 140 which lies on the central axis 120 .
  • the central area 158 is a central area of the filter base 112.
  • An immersion element 160 is arranged in the central area 158 and in particular coaxially to the central axis 120 on the first side 148 and protruding therefrom on the shell base 140 and thus on the filter base 112 .
  • the immersion element 160 is designed in particular as a pin. It is used for immersion in the immersion opening 72 of the filter basket 40.
  • the plunger 160 is positioned on the tray floor 140 opposite the gap 156 . This results in a simplified manufacturability of the shell area 118, for example in an injection molding process.
  • the immersion element 160 is designed as a pin and in particular as a cylinder pin 162 .
  • the immersion element 160 has a circumferential chamfer 166 on an end face 164. In the region of the end face 163, the immersion element 160 is thus in the shape of a truncated cone.
  • the chamfer 166 serves as an insertion aid or centering aid when inserting the immersion element 160 (of the pin 162) into the immersion opening 72.
  • a first nose 168 and a second nose 170 sit on the immersion element 160 (on the pin 162) at a distance from the first side 148 of the shell bottom 140.
  • the first nose 168 and the second nose 170 each project relative to the central axis 120, which has a axial axis, transversely of a skirt 172 of the immersion member 160 away.
  • first lug 168 and the second lug 170 are arranged diametrically opposite one another, a connecting line which runs through the first lug 168 and the second lug 170 intersects the central axis 120.
  • first lug 168 and the second lug 170 are at a distance from the shell bottom 140.
  • first lug 168 and the second lug 170 are at the same height, so that they have the same distance from the shell bottom 140 (cf Figure 21).
  • the first lug 168 and the second lug 170 each have a cuboid shape. They have (compare in particular FIG. 22) a first insertion bevel 174 and a second insertion bevel 176 .
  • the first insertion chamfer 174 is located on an underside 178 of the respective nose 168 or 170, which faces the tray base 140 (and its first side 148) (compare FIG. 21).
  • the second insertion bevel 176 is correspondingly located on an upper side 180 which faces away from the underside 178 .
  • the lugs 168, 170 are provided for guiding on the respective contact element 80 or 84 of the filter basket 40 and for positioning in the respective receiving space.
  • the first insertion chamfer 174 and the second insertion chamfer 176 serve to prevent tilting during the guide.
  • the first insertion chamfer 174 and the second insertion chamfer 176 are each formed by inclined surfaces 182 which are oriented at an acute angle to the central axis 120 (compare FIG. 22).
  • first insertion chamfer 174 and the second insertion chamfer 176 are formed at least approximately parallel to one another with respect to their inclined surfaces 182 .
  • the fixing device 68 of the cartridge filter 44 for producing a fixing connection with the filter basket 40 (and its counter-fixing device 70) is arranged on the filter base 112.
  • the fixing device 68 is arranged on the shell area 118 and thereby on the shell bottom 140 .
  • the fixing device 68 comprises the immersion element 160 (the pin 162) and the lugs 168 and 170.
  • the shell base 140 in particular with its first side 148, can also be regarded as part of the fixing device 68 of the cartridge filter 44, at least in a partial area.
  • the design and dimensions of the fixing device 68 are adapted to the counter-fixing device 70 .
  • a bayonet connection device is formed via the fixing device 68 and the counter-fixing device 70 .
  • a fixing connection between the cartridge filter 44 and the filter basket 40 can be produced via a plug-and-turn movement, as will be explained in more detail below.
  • the suction flow generated by the blower device 26 should only be able to flow through the filter medium area 114 and not be able to flow through the filter bottom 112.
  • a fixing connection is made between the cartridge filter 44 and the filter basket 40, there should be no short-circuit air flow in the area of the base area 48 and the filter base 112.
  • the filter bottom 112 In the case of a fixing connection between the cartridge filter 44 and the filter basket 40 , provision is made for the filter bottom 112 to bear against the bottom area 48 of the filter basket 40 on the first side 148 at least in a partial area. It is provided that at least in a partial area the bowl bottom 140 bears against the wall 50 of the filter basket 40 (compare, for example, FIG. 14), specifically in such a way that an airtight connection is achieved.
  • the fixing device 68 and the counter-fixing device 70 are adapted to one another in such a way that the shell base 140 is pressed against the wall 50 when the fixing connection is established.
  • An airtight seal is achieved by forming the wall 50 and/or the shell base 140 and/or by providing an additional sealing element such as, for example, an O-ring.
  • FIG. 3 the cartridge filter 44 is shown as a whole and as a component separate from the teat 10 .
  • Figures 19 to 24 show an individual part of the cartridge filter 44, namely the shell area 118.
  • FIGS. 1, 2 show the teat 10, wherein the cartridge filter 44 is fixed to the filter basket 40.
  • the filter basket 40 without cartridge filter 44 is shown in Figures 4-10.
  • FIGS. 11 to 18 show the cartridge filter 44 and the filter basket 40, the cartridge filter 44 being fixed to the corresponding filter basket 40 or showing intermediate positions.
  • the immersion element 160 on the bowl bottom 140 is immersed into the immersion opening 72 of the filter basket 40 in a first step.
  • a distance between the first contact element 80 and the second contact element 84 is greater than a corresponding width of the immersion element 160, this distance approximately corresponding to the width.
  • the chamfer 166 facilitates immersion and ensures centering.
  • the immersion element 160 can be immersed until the first lug 168 and the second lug 170 are in contact with the respective contact element 80 or 84 and are in contact with the corresponding contact surface 100 .
  • the cartridge filter 44 then rotates as a whole about an axis of rotation 184 (compare, for example, FIG. 15).
  • the axis of rotation 184 is at least approximately coaxial to the central axis 120 and also to the central axis 74.
  • the operator holds the cartridge filter 44 on the grip bar 152 and also applies the corresponding torque via this bar.
  • the immersion opening 72 is also designed with respect to the contact elements 80, 84 such that the immersion element 160 can be immersed, but the lugs 168, 170 can then be placed against the respective contact surface 100 and in particular cannot penetrate through.
  • the distance between the first contact element 80 and the second contact element 84 is also adapted to the distance between the first lug 168 and the second lug 170, so that they cannot penetrate the contact elements 80, 84.
  • the respective lugs 168, 170 are guided on their associated contact element 80, 84 and are guided over the ramps 92 in the interior 60 onto the wall 50 and are guided there to the contact surface 100. If they continue to rotate, they are guided over the ramps 106 , 108 .
  • the first insertion chamfer 174 on a respective nose 168, 170 is used for transfer to the latching element 102 via their ramps 106, 108 in order to avoid tilting.
  • the lugs 168, 170 move synchronously into the respective receiving space 110 between the associated stop 94 or 96 and the latching element 102. A rotary movement is then blocked.
  • the cartridge filter 44 is rotated in the opposite direction relative to the filter basket 40 .
  • the corresponding torque introduced by an operator causes the respective lugs 168, 170 to run over the movable latching element 102 with its ramps 106, 108.
  • the respective lugs 168, 170 are then guided to the associated contact element 80, 84.
  • the second insertion chamfer 176 serves to facilitate the transition during guidance on the corresponding contact element 80, 84 in order to prevent snagging there.
  • the lugs 168, 170 are released so that they can be guided out of the immersion opening 72 and the cartridge filter 44 can thus be removed as a whole.
  • the cartridge filter 44 When the cartridge filter 44 is removed, it is immersed out of the filter basket 40, with the immersion element 160 then also being immersed out of the immersion opening 72.
  • the shell base 140 rests against the wall 50 and an airtight connection is achieved.
  • FIG. 14 the combination of filter basket 40 and cartridge filter 44 is shown in a plan view with the fixing connection established.
  • the immersion element 160 of the cartridge filter 44 is immersed in the immersion opening 72 .
  • the lugs 168, 170 are each already guided over the inside of the wall 50 via their associated contact elements 80, 84 and are located in their respective receiving space 110. There they are then positioned between the respective stop 94, 96 and the associated latching element 102.
  • the fixation connection is made and air passage can only occur via the filter media area 114 .
  • the sucker 10 works as follows: During suction operation, the blower device 26 is activated and generates a suction flow. This suction flow acts directly on the cartridge filter 44 on its clean side 128 . Air can flow through the filter medium area 114 through the openings 64 .
  • the interior 18 of the suction material container 12 is acted upon accordingly by the suction flow. Furthermore, the suction flow is present at the suction connection 16, and suction material can be sucked in.
  • suction material container 12 It is possible that a filter bag is arranged in the suction material container 12 if dry suction material is to be sucked in. It is also possible for suction material container 12 to be filled directly. This is the preferred approach when wet vacuuming.
  • the dirty side 126 of the cartridge filter 44 protrudes into the interior 18. It ensures that the blower device 26 is supplied with clean process air.
  • the suction head 22 is removed from the suction material container 12.
  • the cartridge filter 44 is thereby rotated as a whole relative to the filter basket 40 .
  • An operator grasps the cartridge filter 44 via the handle bar 152 .
  • the corresponding rotation when a sufficiently large amount of force is achieved, the corresponding lugs 168, 170 on the immersion element 160 of the cartridge filter 44 are guided out of their respective receiving spaces 110.
  • the latching element 102 must be overcome. This is connected with a spring.
  • the first ramp 106 facilitates this removal.
  • the lugs 168, 170 reach their respective contact element 80, 84 and are then guided in such a way that they are brought into a position in which the lugs 168, 170 no longer lie over the wall 50.
  • the immersion element 160 with the lugs 168, 170 can then be exchanged from the immersion opening 72; the cartridge filter 44 can be removed from the filter basket 40.
  • the filter medium area 114 is guided along the filter basket 40 and in the process along its casing wall 58 in the axial direction 52 .
  • a rotary movement is blocked in one direction by the associated stop 94 or 96 and in the opposite direction by the associated latching element 102 .
  • the rotational movement in the opposite direction by the latching element 102 is made possible in a non-destructive manner if the appropriate force is applied, in order to be able to release the cartridge filter 44 as described above.
  • the immersion opening 72 on the wall 50 has an oval or rectangular shape. It has a width Bi between the first boundary wall area 78 and the second boundary wall area 82 (compare FIG. 6). Transversely, it has a width B2. The width Bi is larger than the width B2.
  • a distance between outer ends of the first tab 168 and the second tab 170 is B3 ( Figure 21).
  • the width Bi as the distance between the first boundary wall area 78 and the second boundary wall area 82 is greater than the width B3 between the first lug 168 and the second lug 170 and is only slightly larger.
  • the width B2 is less than the distance B3 between the outer ends of the first tab 168 and the second tab 170.
  • the immersion element 160 with the lugs 168, 170 is immersed in the immersion opening 72, this means that the lugs 168, 170 can only penetrate through the immersion opening 72 in the area of the first boundary wall area 78 and the second boundary wall area 82. In a transverse orientation to this, the lugs 168, 170 would abut against the wall 50 on an outside.
  • the lugs 168, 170 are brought into the area of the boundary wall regions 78, 82 and can then dip through the immersion opening 72 and rest against the bearing elements 80, 84.
  • Sides of the first contact element 80 and the second contact element 84 facing each other have a distance ß4, see Figure 6.
  • This distance B4 is smaller than the width Bi. In the exemplary embodiment, it corresponds at least approximately to the width Bi.
  • the first abutment element 80 and the second abutment element 84 face each other in a circular shape.
  • a region 186 (FIGS. 6, 8) on the contact elements 80, 84, which is at a distance from the immersion opening 72 in the wall 50, is circular in shape. This area 186 enables the immersion element 160 to be centered, in particular via the chamfer 166.
  • the tabs 168, 170 cannot go further be guided than to the contact surface 86 of the contact elements 80, 84. They can therefore not penetrate further into the interior space 60 in the axial direction 52.
  • the contact elements 80, 84 form a locking stop over their respective contact surfaces 86.
  • the height of the lugs 168, 170 above the shell base 140 and also in relation to the end face 264 of the pin 162 is adjusted in such a way that it is not possible to plunge through, even in the event of a cant.
  • This configuration of the immersion opening 72 in relation to the configuration of the immersion element 160 with the lugs 168, 170 allows an operator to establish the fixing connection between the cartridge filter 44 and the filter basket 40 "blindly", ie without eye contact.
  • a centering takes place via the immersion element 160.
  • the lugs 168, 170 are either guided to the wall 50 until they rest.
  • the operator can ensure that the lugs 168, 170 reach the boundary wall regions 78, 82. It is then possible to plunge through there until it contacts the contact surfaces 86 of the contact elements 80, 84.
  • the lugs 168, 170 prefferably aligned with the boundary wall regions 78, 82 and then to dip into the immersion opening 72.
  • the cartridge filter 44 forms a unitary component which can be detached in a simple manner.
  • the cartridge filter 44 can be designed in a structurally simple and cost-effective manner.
  • an air seal can be formed in a simple manner as an axial seal between the wall 50 and the filter base 112 with the shell base 140 .
  • the immersion element 160 is arranged on the cartridge filter 44 and the immersion opening 72 is on the Filter basket 40 arranged. It is also possible that there is a kinematic reversal here.
  • an immersion element 190 is then arranged in a cartridge filter 44', in particular as a pin on a filter basket 40'.
  • a dip opening 72' is then located on a filter base 112'.
  • lugs 168', 170' is on the immersion element 190, and the elements associated with the immersion opening 72', such as the abutment elements 80', 84', are then correspondingly arranged on the cartridge filter 44'.
  • this embodiment works in the same way as described above.
  • the cartridge filter 44' is aligned with the filter basket 40' and then pushed onto it. As a result, the immersion element 190 of the filter basket 44' is automatically aligned with the immersion opening 72'.
  • the contact elements 80', 84' are arranged on the filter bottom 112' in basically the same way as the contact elements 80, 84 on the filter basket 44 described above.
  • the lugs 168', 170' When the cartridge filter 44' is pushed onto the filter basket 40', the lugs 168', 170' either rest against the boundary wall around the immersion opening 72' or they penetrate through.
  • the latching elements 102' are arranged on the filter base 112' and are arranged in the area of the immersion opening 72'.
  • the filter base 112' is pressed against a base of the filter basket 44 to achieve a seal.
  • Grip bridge a first bridge part b second bridge part

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

L'invention concerne un filtre à cartouche pour dispositif d'aspiration (10), le filtre à cartouche étant prévu pour être fixé sur un panier filtrant (40) du dispositif d'aspiration (10). Afin de fournir un filtre à cartouche du type mentionné au début, qui est conçu de manière simple et qui peut être relié de manière simple et sûre au panier de filtration d'un dispositif d'aspiration, selon l'invention une base de filtre (112) sur laquelle est disposé un dispositif de fixation (68) pour établir une liaison de fixation amovible du filtre à cartouche avec un dispositif de fixation homologue (70) du panier filtrant (40), et une région de milieu filtrant (114), qui est maintenue de manière non détachable sur la base de filtre (112), où, afin d'établir et de détacher la liaison de fixation, un mouvement du filtre à cartouche dans son ensemble par rapport au panier filtrant (40) est prévu.
EP21794521.1A 2020-10-27 2021-10-14 Filtre à cartouche pour dispositif d'aspiration et dispositif d'aspiration Pending EP4236748A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020128176.5A DE102020128176A1 (de) 2020-10-27 2020-10-27 Patronenfilter für einen Sauger und Sauger
PCT/EP2021/078542 WO2022089958A1 (fr) 2020-10-27 2021-10-14 Filtre à cartouche pour dispositif d'aspiration et dispositif d'aspiration

Publications (1)

Publication Number Publication Date
EP4236748A1 true EP4236748A1 (fr) 2023-09-06

Family

ID=78293989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21794521.1A Pending EP4236748A1 (fr) 2020-10-27 2021-10-14 Filtre à cartouche pour dispositif d'aspiration et dispositif d'aspiration

Country Status (4)

Country Link
EP (1) EP4236748A1 (fr)
CN (1) CN116490107A (fr)
DE (1) DE102020128176A1 (fr)
WO (1) WO2022089958A1 (fr)

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DE3243506C2 (de) * 1981-07-16 1985-09-26 Guido Oberdorfer Wap-Maschinen, 7919 Bellenberg Schmutzsauger mit Filterpatrone
US5855634A (en) 1997-06-24 1999-01-05 Shop Vac Corporation Filter retainer for a vacuum cleaner
US6558453B2 (en) 2000-01-14 2003-05-06 White Consolidated Industries, Inc. Bagless dustcup
KR100424580B1 (ko) 2001-12-20 2004-03-27 엘지전자 주식회사 진공청소기의 배기커버 체결장치
KR100424581B1 (ko) 2001-12-20 2004-03-27 엘지전자 주식회사 진공청소기의 배기필터 체결장치
ITRA20070042A1 (it) 2007-06-01 2008-12-02 Gen Aspirazione Di Bianchi Fa Centralina per impianti aspirapolvere centralizzati .
GB2453995B (en) 2007-10-25 2012-01-25 Dyson Technology Ltd A filter assembly
US20090183337A1 (en) 2008-01-17 2009-07-23 Davis Ronald E Vacuum cleaner equipped with motor exhaust system
US8206482B2 (en) 2008-07-04 2012-06-26 Emerson Electric Co. Vacuum appliance filter assemblies and associated vacuum systems
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CN106510549B (zh) 2016-11-08 2018-11-09 苏州欧圣电气股份有限公司 一种吸尘器
CN106388705B (zh) 2016-11-08 2018-11-06 苏州欧圣电气股份有限公司 过滤组件、过滤装置及吸尘器
CN106618380B (zh) 2016-11-08 2018-11-09 苏州欧圣电气股份有限公司 一种吸尘器
CN207270312U (zh) 2017-04-11 2018-04-27 苏州欧圣电气股份有限公司 吸尘器
CN116869402A (zh) 2017-04-11 2023-10-13 苏州欧圣电气股份有限公司 过滤装置及吸尘器
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Also Published As

Publication number Publication date
WO2022089958A1 (fr) 2022-05-05
CN116490107A (zh) 2023-07-25
DE102020128176A1 (de) 2022-04-28

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