EP3272934A1 - Filter insert and device for treating laundry - Google Patents

Abstract

A filter cartridge (1) having a filter bag (2) and a mounting unit (3) connected to the filter bag (2) for attaching the filter cartridge (1) to a component of the apparatus (20), the mounting unit (3) having an air inlet portion (4). has, over which the process air enters the filter bag (2); the filter insert (1) comprises two elastic and buckling-resistant rails (11, 12), which are arranged on mutually opposite sections of the filter bag (2) and the sides facing one another at least over a part of the longitudinal extent of the respective rail (11, 12) extending connecting means (17, 18) which is releasably connectable to the connecting means (17, 18) of the respective other rail (11, 12), two on a filter bag (2) facing side of the attachment unit 3 arranged guides (9, 10 ), in each of which one of the rails (11, 12) is inserted and which extend on opposite sides of the rails (11, 12), and an insertion side between the guides (9, 10) arranged release element (14), the relative so is arranged to the guides (9, 10), that when inserting the interconnected via the connecting means (17, 18) rails (11, 12) in the guides (9, 10) between the rails (11, 12) and urges the rails (11, 12) apart, so that the interconnected connecting means (17, 18) are released from each other.

Description

The invention relates to a filter insert for filtering process air in a device for treating laundry, in particular a tumble dryer, comprising at least one filter bag having at least one air inlet opening, and at least one non-destructive releasably connected to the filter bag, the air inlet opening covering attachment unit for proper attachment of the Filter insert on a component of the device, wherein the attachment unit has at least one air inlet portion through which the process air enters the filter bag.

Furthermore, the invention relates to a device for treating laundry, in particular a tumble dryer, comprising at least one front-side end shield and at least one process air circuit with an arranged on the end shield air duct on which a receptacle for receiving a filter insert is formed.

A tumble dryer comprises a process air cycle in which a drying air is circulated during the execution of a drying process. The drying air is in this case passed through a container in which a laundry drum containing laundry to be dried is rotatably arranged and forms a portion of the process air cycle. The laundry drum is rotated during the drying process, whereby the laundry present in the laundry drum is moved. In particular lint and hair detach from the laundry and are taken away by the drying air. In order to prevent these impurities in the drying air from being reintroduced into the container or the washing drum in a closed process air circuit, it is known to filter out the impurities from the drying air by means of a filter. If the tumble dryer has a heat pump coupled thermally to the process air circuit, the filtering of the drying air can also ensure that heat exchangers of the heat pump are not contaminated and contaminated, which would be accompanied by a reduction in the efficiency of the heat pump.

The publication DE 10 2014 211 303 A1 relates to a clothes dryer with a rotatably mounted in a housing drum, a closable with a door feed opening and a device for generating a process air stream which flows through an intermediate between the drum and a heat exchanger as a flow channel air duct, the inlet opening is arranged in the bent portion of the feed opening , In the air duct lint filtering by means of a bag, wherein above the bag, a cover is used, which forms a detachable connection with the inserted in the air guide bag in the inserted state. The cover member and the bag form a filter unit for filtering process air in the clothes dryer. To arrange the filter unit on the air duct, the bag is first inserted into the air duct and then the cover part is connected to the bag. The cover thus does not serve for proper attachment of the filter unit to the air duct. Instead, the filter bag of the filter unit is attached to the air guide independently of the cover member.

An object of the invention is to reduce the maintenance effort for the operation of an apparatus for treating laundry.

This object is achieved in each case by the subject-independent claims. Advantageous embodiments are given in the following description, the dependent claims and the figures of the accompanying drawing. Advantageous embodiments can be taken alone or in various combinations with each other a further education, in particular also preferred or advantageous, aspect of the invention.

A filter insert according to the invention for filtering process air in a device for treating laundry, in particular in a tumble dryer, comprises at least one filter bag which has at least one air inlet opening and at least one attaching unit which covers the air inlet opening in a non-destructively detachable manner and which is detachably connected to the filter bag for proper attachment of the filter insert on a component of the device, wherein the attachment unit has at least one air inlet portion, through which the process air enters the filter bag. Furthermore, the filter insert comprises two elastic and buckling-resistant rails, which are arranged on mutually opposite sections of the filter bag and the mutually facing sides each have at least one extending over at least part of the longitudinal extent of the respective rail connecting means which is non-destructively detachably connectable to the connecting means of the respective other rail. In addition, the filter insert comprises two guides arranged on a side of the attachment unit facing the filter bag, into each of which one of the rails is inserted and which extend on opposite sides of the rails. Furthermore, the filter insert comprises at least one release element arranged between the guides, which is arranged relative to the guides so that it comes with an insertion of the interconnected via the connecting means rails in the guides between the rails and the rails apart, so that the interconnected connecting means are released from each other.

According to the invention, the filter bag may initially be closed before it is arranged on the attachment unit by connecting the connection means of the rails to one another. In this state, the two rails are substantially parallel to each other. For arranging the filter bag on the attachment unit, the rails are respectively inserted from an insertion region of the attachment unit into their own guide. In this case, the two rails come into contact with the release element, which is arranged on the side facing the filter bag side of the attachment unit and, for example, can be wedge-shaped. With progressive introduction of the rails in the guides between the rails, the release element passes between the rails and urges the rails apart or away from each other. As a result, the interconnected connecting means are released from each other and thus opened the filter bag. The guides are preferably designed such that they limit the opening of the filter bag to a certain extent after separation of the connecting means. For this purpose, the guides may be formed such that their distance from each other, starting from the insertion initially increased, then is approximately constant and finally reduced again. If the rails are introduced into the guides as intended, the filter bag may be opened such that its air inlet opening has an approximately elliptical cross-sectional area with two non-rounded ends on the main axis. The filter bag can thus be arranged in the filter insert according to the invention in a simple manner to the attachment unit by the rails are introduced into the guides of a person. The filter bag is opened automatically.

The filter insert according to the invention can be arranged only as a whole on a receptacle on the device, since the filter bag is to be arranged in the receptacle and it is thus not possible, arranged on the filter bag rails inserted into the receptacle filter bag by a movement of the filter bag in the Introduce guides on the attachment unit. In addition, due to a limited space, the attachment unit can not be moved relative to a filter bag inserted into the receptacle to thereby introduce the rails in the guides. Likewise, the filter cartridge according to the invention can only be removed as a whole from the receptacle on the device.

To detach the filter bag from the attachment unit, the filter bag can be moved in the direction of the insertion region of the attachment unit relative to the attachment unit. Here, the guides are formed and arranged relative to each other, that they currently press in the end region located portions of the two rails against each other before leaving the guides, that the connecting means of the rails are interconnected. As a result, the filter bag is automatically closed when pulling out the rails from the guides. In this way it can be prevented that impurities contained in the filter bag enter the environment during replacement, transport or storage of the filter bag. The filter bag can thus solve in the filter insert according to the invention in a simple manner from the attachment unit by the rails are pulled out of the guides by a person.

The two rails can be partially or completely made of a plastic. Due to the elastic design of the rails they can be introduced without much effort in the curved guides running and preferably assume a straight-line shape in an unloaded state. The buckling-resistant design of the rails prevents the rails from buckling when inserted into the guides, which would make insertion difficult. The fact that the rails are arranged on mutually opposite sections of the filter bag may in particular mean that the rails are arranged adjacent to the air inlet opening of the filter bag. The rails can at least partially extend the filter bag in the region of the air inlet opening. Preferably, the rails are sized so large that a person can carry the filter bag by engaging the rails without the carrying hand coming into contact with the filter bag.

The two guides can be formed by guide elements arranged on the underside of the attachment unit facing the filter bag, for example in the form of curved ribs or the like. The guide elements may, for example, be made of plastic, monolithic with the attachment unit.

The insertion side arranged between the guides release element is arranged on the filter bag facing the bottom of the attachment unit. The release element may be made, for example, of plastic, monolithic with the attachment unit. In order to arrive at an insertion of the rails connected to each other via the connecting means in the guides between the rails and to urge the rails apart, the release element is arranged in the insertion region of the attachment unit between the guides.

The filter insert according to the invention can be used for filtering process air in the form of a drying air in the apparatus for treating laundry. Such filtering of the process air may take place during a conventional drying process and / or a special drying process and / or a special filtering operation, for example for filtering out special contaminants, such as pollen, animal excretions and the like, outside a drying process. The filter insert can be used in particular in a tumble dryer or a washer-dryer for filtering process air.

The filter bag is made of a filter material suitable for the respective purpose, in particular fine filter material, for example a woven fabric, knitted fabric, fleece or the like. The filter bag may be suitable for filtering lint and / or hair and / or pollen and / or animal excretions and / or allergenic particles from the process air. The filter bag may be formed as a disposable bag, which is separated from a certain impurity level and / or a certain period of operation of the attachment unit and disposed of. Alternatively, the filter bag can be cleaned, in particular washable, formed, so that after a cleaning of the filter bag reuse of the filter bag is possible.

The attachment unit may be made of a plastic. The attachment unit may be designed so that it can be used over the life of the device. The attachment unit is non-destructively detachably connected to the filter bag via the connection between the rails fastened to the filter bag and the guides arranged on the attachment unit. The attachment unit is at least partially disposed upstream of the filter bag with respect to a process air flow through the filter insert, so that the process air passes into the filter bag via the at least one air guide section of the attachment unit. The air guiding section can have a sieve-like lattice structure, through which the process air can pass under the lowest possible flow resistance and which prevents other objects, in particular items of laundry, from entering the filter bag. The attachment unit can also have two or more corresponding air guide sections. Since the attachment unit covers the air inlet opening of the filter bag, the process air can enter the filter bag exclusively via the attachment unit. That the attachment unit is arranged for proper attachment of the filter cartridge to a component of the device, means that the attachment unit is supported on the component of the device and thereby holds the filter cartridge in the desired position. A support of the filter cartridge on the filter bag is not possible because it is flexible.

The filter insert according to the invention can serve as a replacement component for a conventional lint filter. In this respect, the filter insert can be inserted into a receptacle provided for the lint filter, for example on a front-side end shield of a conventional device. As a result, a conventional device can be retrofitted with a filter insert according to the invention.

According to an advantageous embodiment, the connecting means form a pressure closure or a sliding closure. In the case of a pressure closure, as is known, for example, from pressure-sealing bags, and a sliding closure (also known as slide closure), as is known, for example, from sliding closure bags, the mutually facing sides of the rails can each be provided with a closure strip which is at least partially deformed can interlock positively. Both a pressure seal and a sliding closure allow a nearly airtight sealing of the filter bag. This is special It is beneficial if the filter cartridge is used to filter out pollen or animal excreta or other allergenic particles from the process air, as these contaminants can cause allergic reactions to people in the area. Alternatively, the connecting means may for example form a hook and loop fastener or the like. The use of said types of closure allows easy opening and closing of the filter bag.

According to a further advantageous embodiment, the rails are integrally connected to the filter bag. The rails may for example be welded or glued to the filter bag. A purely cohesive connection between the rails and the filter bag has the advantage that no mechanical connection means are present, which could complicate the insertion of the rails in the guides.

According to a further advantageous embodiment, the filter insert comprises at least one locking element arranged on the attachment unit, which blocks the guides in an insertion region for the rails in a blocking position fixed to the attachment unit, the guides being brought together at an end region opposite the insertion region. If the blocking element is moved out of its blocking position, the insertion area is released on the attachment unit. Subsequently, either a closed filter bag, as described above, can be arranged on the attachment unit, or an opened filter bag arranged on the attachment unit can be removed or removed from the attachment unit. To locate the filter bag on the attachment unit, the rails are pushed into the guides until they stop at the end region. Subsequently, the blocking element can be brought into its blocking position, so that the rails are arranged together with the filter bag captive on the attachment unit.

According to a further advantageous embodiment, the rails between the end and the locking element located in its blocking position are clamped. For this, the length of the rails must be adjusted to the length of the guides. By clamping the rails, the rails seal against the guides. As a result, it can be reliably prevented that the process air flowing into the filter insert does not leave the filter insert via the filter bag or unfiltered the filter insert.

According to a further advantageous embodiment, the blocking element is fixed in its blocking position via at least one latching connection or at least one snap connection to the attachment unit. Such a connection can be formed in a simple manner, for example by a special shaping of the blocking element and the cooperating section of the attachment unit.

According to a further advantageous embodiment, the blocking element is movably connected to the attachment unit or a separate component. The blocking element may, for example, be movably or flap-like connected to the attachment unit via a film hinge connected monolithically to the attachment unit and the blocking element, or a separate joint. If the blocking element is designed as a separate component, it can be completely detached from the attachment unit.

According to a further advantageous embodiment, the filter insert comprises at least one spacing element arranged in the end region on the attachment unit, which is arranged between the rails at the end. The spacer may be made, for example, from a plastic, monolithic with the attachment unit. The spacer helps to ensure that the rails inserted into the guides remain separated from each other and slightly curved outwards.

According to a further advantageous embodiment, the filter insert comprises at least one handling means arranged on the attachment unit. A person may act on the handling means to insert the filter cartridge into a receptacle formed on the device and to remove the receptacle again. The handling means may be arranged or formed, for example as a trough, tab, loop, hole or the like on the attachment unit. The filter insert may also have two or more, in particular the same or different, handling means.

An apparatus according to the invention for treating laundry, in particular a tumble dryer, comprises at least one front-side shield, at least one process air circuit with an air shaft arranged on the end shield, on which a receptacle for receiving a filter insert is formed, and at least one filter element according to one of the aforementioned embodiments or any combination at least two of these embodiments with each other, wherein the filter insert is inserted as a whole into the receptacle and as a whole of the receptacle can be removed.

With the device, the advantages mentioned above with respect to the filter element are connected accordingly. The device can be set up, in particular, for drying wet and / or moist laundry using condensation drying. The device may be designed, for example, as a household appliance in the form of a tumble dryer or a washer-dryer. The device can be designed to carry out a special program, for example in the form of a time program, in order to be able to carry out a special filtering of the process air. In particular, in a conventional drying program or a special drying program or a special program, lint, pollen, hair, animal excretions and / or allergenic particles can be filtered out of the process air and collected in the filter bag which is moving from the laundry to the laundry in a laundry drum of the device to solve. In addition, particles that lead to unwanted odors can be filtered out of the process air and collected in the filter bag. The process air circuit is preferably formed closed. The device may have a heat pump coupled thermally to the process air circuit.

The invention is not limited to the specified combination of the features of the independent claims and the dependent claims. In addition, there are further possibilities of combining individual features, in particular if they result from the patent claims, the following description of the exemplary embodiment or directly from the figures. In addition, the reference of the claims to the figures of the drawing on the use of reference numerals is not intended to limit the scope of the claims to the illustrated embodiment.

Fig. 1

eine schematische und perspektivische Seitendarstellung eines Ausführungsbeispiels für einen Filtereinsatz mit in seiner Sperrstellung befindlichem Sperrelement;

Fig. 2

eine schematische Darstellung des in Fig. 1 gezeigten Filtereinsatzes von unten;

Fig. 3

eine schematische Schnittdarstellung des in den Figuren 1 und 2 gezeigten Filtereinsatzes;

Fig. 4

eine schematische und perspektivische Darstellung der in den Figuren 1 bis 3 gezeigten Anbringeinheit von schräg oben;

Fig. 5

eine schematische und perspektivische Darstellung der in den Figuren 1 bis 4 gezeigten Anbringeinheit von schräg unten;

Fig. 6

eine schematische und perspektivische Detaildarstellung der in den Figuren 1 bis 5 gezeigten Anbringeinheit von schräg unten;

Fig. 7

eine weitere schematische und perspektivische Detaildarstellung der in den Figuren 1 bis 6 gezeigten Anbringeinheit von schräg unten;

Fig. 8

eine schematische und perspektivische Seitendarstellung des in den Figuren 1 bis 3 gezeigten Filtereinsatzes mit in einer Offenstellung befindlichem Sperrelement;

Fig. 9

eine schematische Darstellung der in Fig. 8 gezeigten Anbringeinheit von unten;

Fig. 10

eine schematische und perspektivische Seitenansicht des in Fig. 8 gezeigten Filtereinsatzes mit von der Anbringeinheit gelöstem Filterbeutel;

Fig. 11

eine schematische und perspektivische Detaildarstellung der in den Figuren 8 bis 10 gezeigten Anbringeinheit von schräg unten;

Fig. 12

eine weitere schematische und perspektivische Detaildarstellung der in den Figuren 8 bis 11 gezeigten Anbringeinheit von schräg unten;

Fig. 13

eine schematische und perspektivische Darstellung des in den Figuren 1, 2, 3, 8, und 10 gezeigten Filterbeutels mit Schienen in einem geöffneten Zustand;

Fig. 14

eine schematische und perspektivische Darstellung des in den Figuren 1, 2, 3, 8, 10 und 13 gezeigten Filterbeutels mit Schienen in einem geschlossenen Zustand;

Fig. 15

eine schematische und perspektivische Schnittdarstellung des in Fig. 14 gezeigten Filterbeutels mit Schienen; und

Fig. 16

eine schematische und perspektivische Darstellung eines Ausführungsbeispiels für ein Gerät.

In the following, the invention will be explained by way of example with reference to the figures of the accompanying drawing with reference to a preferred embodiment. Show it:

Fig. 1

a schematic and perspective side view of an embodiment of a filter cartridge with located in its blocking position blocking element;

Fig. 2

a schematic representation of the in Fig. 1 shown filter insert from below;

Fig. 3

a schematic sectional view of the in the FIGS. 1 and 2 shown filter cartridge;

Fig. 4

a schematic and perspective view of the in the FIGS. 1 to 3 shown attachment unit obliquely from above;

Fig. 5

a schematic and perspective view of the in the FIGS. 1 to 4 shown attachment unit from diagonally below;

Fig. 6

a schematic and perspective detail of the in the FIGS. 1 to 5 shown attachment unit from diagonally below;

Fig. 7

a further schematic and perspective detail of the in the FIGS. 1 to 6 shown attachment unit from diagonally below;

Fig. 8

a schematic and perspective side view of the in the FIGS. 1 to 3 shown filter cartridge with located in an open position blocking element;

Fig. 9

a schematic representation of in Fig. 8 shown attachment unit from below;

Fig. 10

a schematic and perspective side view of the in Fig. 8 shown filter cartridge with detached from the attachment unit filter bag;

Fig. 11

a schematic and perspective detail of the in the FIGS. 8 to 10 shown attachment unit from diagonally below;

Fig. 12

a further schematic and perspective detail of the in the FIGS. 8 to 11 shown attachment unit from diagonally below;

Fig. 13

a schematic and perspective view of the in the FIGS. 1 . 2 . 3 . 8th , and 10 shown filter bag with rails in an open state;

Fig. 14

a schematic and perspective view of the in the FIGS. 1 . 2 . 3 . 8th . 10 and 13 shown filter bag with rails in a closed state;

Fig. 15

a schematic and perspective sectional view of the in Fig. 14 shown filter bag with rails; and

Fig. 16

a schematic and perspective view of an embodiment of a device.

Fig. 1 shows a schematic and perspective side view of an embodiment of a filter cartridge 1 for filtering process air in a device not shown for treating laundry.

The filter cartridge 1 comprises a filter bag 2 with a in the Figures 3 and 13 shown air inlet opening. Furthermore, the filter insert 1 comprises a non-destructively detachably connected to the filter bag 2, the air inlet opening covering attachment unit 3 for proper attachment of the filter cartridge 1 to a not shown component of the device. The attachment unit 3 comprises an air inlet section 4 with a plurality of air inlet openings 5, via which the process air enters the filter bag 2. The air inlet section 4 is arranged on a side facing away from the filter bag 2 side of the attachment unit 3, wherein this side is angled, as it is in particular in Fig. 3 is shown.

The filter cartridge 1 also includes two in the Figures 3 . 10 . 13 . 14 and 15 shown, elastic and buckling resistant rails, which are arranged on mutually opposite sections of the filter bag 2 and the mutually facing sides in each case at least over the entire longitudinal extent of the respective rail extending, in Fig. 15 Having shown connecting means which is non-destructively releasably connectable with the connecting means of the respective other rail.

The filter cartridge 1 further comprises two arranged on the filter bag 2 side facing the attachment unit 3 arranged in the Figures 2 . 3 . 5 . 6 . 7 . 9 . 11 and 12 shown guides which extend on opposite sides of the rails and of which in Fig. 1 only the guide 9 can be seen while the other guide is hidden. In the guides 9 (and not shown 10), one of the rails is inserted in each case.

In addition, the filter insert 1 comprises an insertion side arranged between the guides, in Fig. 1 covert, in the FIGS. 6 and 12 shown release member which is arranged relative to the guides, that it passes in an insertion of the interconnected via the connecting means rails in the guides between the rails and the rails apart, so that the interconnected connection means are separated from each other.

Furthermore, the filter cartridge 1 comprises a blocking element 6 arranged on the attachment unit 3, which locking rod is in the in Fig. 1 shown, fixed to the attachment unit 3 blocking position, the guides in an in Fig. 1 On the right side, the insertion area for the rails is blocked. The guides are brought together at an end region opposite the insertion area, as shown in FIGS Figures 5 . 7 and 9 is shown. The blocking element 6 is in the in Fig. 1 Locking position shown fixed via at least one locking connection, not shown, or snap connection to the attachment unit 3. The blocking element 6 is connected via a hinge 7 movably connected to the attachment unit 3, so that it moves from the blocking position shown in one of the FIGS. 8 to 12 shown open position is pivotable. The filter element 1 also comprises a in the end region on the attachment unit 3, in Fig. 1 covert, in the FIGS. 7 and 9 shown spacer element, which is arranged between the rails end. The rails are between the in Fig. 1 Clamped on the left end region shown and located in its blocking position locking element 6, whereby the rails create a seal against the guides.

The filter cartridge 1 also comprises a handling means 8 arranged on the attachment unit 3 in the form of a gripable handle. A person can handle it engage behind to handle the filter cartridge 1, in particular to use it in a provided on the device recording or remove this.

Fig. 2 shows a schematic representation of the in Fig. 1 shown filter element 1 from below. It can be seen in particular that the filter bag 2 is not flat, but clamped and thus open, which means that the rails, not shown, are not connected to each other at least in a central region of the rails. In addition, the two guides 9 and 10 are shown, which have a curved course away from each other, so that between the guides 9 and 10 an approximately elliptical space is present through which the process air flows into the filter chaff 2.

Fig. 3 shows a schematic sectional view of the in the FIGS. 1 and 2 shown filter element 1, wherein the section in the region of a to the in Fig. 1 shown handling means subsequent opening at the air inlet portion 4 of the attachment unit 3 extends. The guides 9 and 10 are each formed in cross-section L-shaped. The rails 11 and 12 are shown, which are materially connected to the filter bag 2 and which are inserted into the guides 9 and 10. Since the rails 11 and 12 between the in FIGS. 1 and 2 are shown clamped and the opposite end portion of the attachment unit 3, in which the guides 9 and 10 are brought together, are clamped, the rails 11 and 12 pressed apart and sealingly pressed against the guides 9 and 10.

Fig. 4 shows a schematic and perspective view of the in the FIGS. 1 to 3 shown attachment unit 3 obliquely from above. In particular, the angled air inlet section 4 of the attachment unit 3, the blocking element 6 in its blocking position, the handling means 8 and the guide 10 can be seen.

Fig. 5 shows a schematic and perspective view of the in the FIGS. 1 to 4 shown attachment unit 3 of obliquely from below. It can be seen that the air inlet section 4 is supported by support elements 13.

Fig. 6 shows a schematic and perspective detail of the in the FIGS. 1 to 5 shown attachment unit 3 of obliquely from below. The insertion area of the attachment unit 3 is shown. Between the lying in the lead-in ends of the guides 9 and 10 there is a gap over which the in Fig. 6 not shown rails in the guides 9 and 10 can be introduced. In the end region, the partially wedge-shaped release element 14 is arranged, which adjoins the gap at a certain distance. If the interconnected rails are guided through the gap, their inserted ends move towards the release element 14. In a further insertion of the rails in the guides 9 and 10, the release element 14 is urged between these ends of the rails, so that the interconnected connection means are progressively detached from each other as the introduction of the rails progresses. The wedge-shaped configuration of the release element 14 also serves to deflect the rails detached from each other in the direction of the respective guide 9 and 10, respectively, so that the rails respectively move along the respective guide 9 and 10 and during their clamping by the transfer of the locking element 6 in his in Fig. 6 shown blocking position sealing to the guides 9 and 10 create.

Fig. 7 shows a further schematic and perspective detail of the in the FIGS. 1 to 6 shown attachment unit 3 of obliquely from below. It is shown the insertion region opposite end portion of the attachment unit 3, in which the guides 9 and 10 are brought together and a stop 15 for in Fig. 7 Train rails not shown. In addition, the arranged in the end region between the guides 9 and 10 spacer element 16 is shown, which is partially formed as a double wedge. By the spacer 16 is additionally ensured that the fully inserted into the guides 9 and 10 rails are spaced apart in a central region.

Fig. 8 shows a schematic and perspective side view of the in the FIGS. 1 to 3 As a result, the insertion area of the attachment unit 3 is released, so that the rails 11 and 12 are inserted into the guides 9 (and not shown 10) or pulled out of the guides 9 (and 10) can. The rails 11 and 12 are in Fig. 8 right to a certain extent from the guides 9 (and 10) to project with the blocking element 6 in the direction of Fig. 8 Be shown on the left end portion of the attachment unit 3 to be acted upon when the locking element 6 in his in the FIGS. 1 to 7 shown blocking position, whereby the rails 11 and 12 between the in Fig. 8 not shown stop Fig. 7 and the locking element 6 are clamped.

Fig. 9 shows a schematic representation of the in Fig. 8 shown attachment unit 3 from below. In particular, the release element 14 and the spacer element 16 can be seen, which are arranged between the guides 9 and 10.

Fig. 10 shows a schematic and perspective side view of the in Fig. 8 shown filter element 1 with dissolved by the attachment unit 3 filter bag 2. The filter bag 2 is closed because the rails 11 and 12 on the in Fig. 10 covert, in Fig. 15 shown connecting means are interconnected.

Fig. 11 shows a schematic and perspective detail of the in the FIGS. 8 to 10 shown attachment unit 3 of obliquely from below. It can be seen that the lying in the insertion of the mounting unit 3 ends of the guides 9 and 10 extend away from each other, whereby a kind of insertion funnel is formed, which is the insertion of in Fig. 11 Rails not shown between the guides 9 and 10 and the insertion gap arranged therebetween facilitates.

Fig. 12 shows a further schematic and perspective detail of the in the FIGS. 8 to 11 shown attachment unit 3 of obliquely from below. In particular, the release element 14 can be seen, which is arranged between the guides 9 and 10.

Fig. 13 shows a schematic and perspective view of the in the FIGS. 1 . 2 . 3 . 8th , and 10 shown filter bag 2 in an open state. The filter bag 2 is in this state when the rails 11 and 12 in the in Fig. 13 inserted guides not shown and between the in Fig. 13 not shown blocking element and the in Fig. 13 Not shown stop are clamped in the end region.

Fig. 14 shows a schematic and perspective view of the in the FIGS. 1 . 2 . 3 . 8th . 10 and 13 shown filter bag 2 with rails 11 and 12 disposed thereon in a closed state. The filter bag 2 is in this state when it is not at the in Fig. 14 Not shown mounting unit is arranged. The rails 11 and 12 are over in Fig. 14 covert, in Fig. 15 connecting means shown non-destructively releasably connected together.

Fig. 15 shows a schematic and perspective sectional view of the in Fig. 14 shown filter bag 2 and arranged thereon rails 11 and 12. On the rails 11 and 12 connecting means 17 and 18 are formed, which form a snap closure or slide closure. The connecting means 17 is mushroom-shaped in cross-section. The connecting means 18 is C-shaped in cross-section and surrounds the connecting means 17. On the rail 11 are also two extending over the longitudinal extent of the rail 11 extending projections 19 which bear externally on the connecting means 18 to the connection between the connecting means 17th and 18 to strengthen.

Fig. 16 is a schematic and perspective view of an embodiment of an inventive device 20 for treating laundry in the form of a tumble dryer. The device 20 comprises a front-side bearing plate 21 and a closed process air cycle, not shown, with an air shaft arranged on the end plate 21, on which a receptacle 22 for receiving a filter insert 1 is formed. Furthermore, the device 20 comprises a filter cartridge 1, which is inserted as a whole in the receptacle 22 and as a whole of the receptacle 22 can be removed. The filter element 1 is according to the FIGS. 1 to 15 designed to avoid repetition of the above description of the FIGS. 1 to 15 is referenced.

LIST OF REFERENCE NUMBERS

1

filter cartridge

2

filter bag

3

sticking unit

4

Air intake portion

5

Air inlet opening

6

blocking element

7

joint

8th

handling means

9

guide

10

guide

11

rail

12

rail

13

support element

14

release element

15

attack

16

spacer

17

connecting means

18

connecting means

19

head Start

20

device

21

Front-side end shield

22

admission

Claims (10)

Filter insert (1) for filtering process air in a device (20) for treating laundry, in particular in a tumble dryer, comprising - At least one filter bag (2) with at least one air inlet opening, and - At least one non-destructively releasably connected to the filter bag (2), the air inlet opening covering attachment unit (3) for proper attachment of the filter cartridge (1) on a component of the device (20), wherein the attachment unit (3) has at least one air inlet portion (4) , through which the process air enters the filter bag (2), characterized by two elastic and buckling-resistant rails (11, 12) which are arranged on mutually opposite sections of the filter bag (2) and the mutually facing sides each have at least one connection means (17) extending over at least part of the longitudinal extension of the respective rail (11, 12) , 18) which can be detachably connected non-destructively to the connecting means (17, 18) of the respective other rail (11, 12), - two on one of the filter bag (2) facing side of the attachment unit (3) arranged guides (9, 10), in each of which one of the rails (11, 12) is inserted and on opposite sides of the rails (11, 12) run, and at least one release element (14) arranged on the insertion side between the guides (9, 10), which is arranged relative to the guides (9, 10) in such a way that upon insertion of the rails connected to one another via the connecting means (17, 18) ( 11, 12) enters the guides (9, 10) between the rails (11, 12) and urges the rails (11, 12) apart such that the interconnected connecting means (17, 18) are disengaged from each other. Filter insert (1) according to claim 1, characterized in that the connecting means (17, 18) form a pressure closure or sliding closure. Filter insert (1) to one of the preceding claims, characterized in that the rails (11, 12) are integrally connected to the filter bag (2). Filter insert (1) according to one of the preceding claims, characterized by at least one blocking element (6) arranged on the attachment unit (3), which in a blocking position fixed to the attachment unit (3) guides the guides (9, 10) in an insertion region for the rails (11, 12) locks, wherein the guides (9, 10) are brought together at an end region opposite to the insertion region. Filter insert (1) according to claim 4, characterized in that the rails (11, 12) are clamped between the end region and the blocking element (6) located in its blocking position. Filter insert (1) according to any one of claims 4 and 5, characterized in that the blocking element (6) is fixed in its blocking position via at least one latching connection or snap connection to the attachment unit (3). Filter insert (1) according to one of claims 4 to 6, characterized in that the blocking element (6) is movably connected to the attachment unit (3) or is a separate component. Filter insert (1) according to one of claims 4 to 7, characterized by at least one in the end region on the attachment unit (3) arranged spacer element (16) that is arranged between the end rails (11, 12). Filter insert (1) according to one of the preceding claims, characterized by at least one handling means (8) arranged on the attachment unit (3). Device (20) for treating laundry, in particular clothes dryer, having at least one front-side end shield (21) and at least one process air circuit with an on the bearing plate (21) arranged air duct, on which a receptacle (22) for receiving a filter insert (1) characterized by at least one filter cartridge (1) according to any one of claims 1 to 9, which as a whole in the receptacle (22) can be inserted and as a whole of the receptacle (22) can be removed.

Images