EP3106760B1 - Filter device - Google Patents

Description

The present invention relates to an extractor hood with a filter device, wherein the extractor hood comprises at least one suction region with at least one substantially rod-shaped fastening element and the filter device at least one fastening device. The fastening device comprises at least one receiving portion, wherein at least one insertion opening for at least one substantially rod-shaped fastening element is provided on at least one end face of the fastening device or the receiving portion.

Cooker hoods are often installed over hotplates to soak up the fumes rising from the hob and to rid of fatty components and depending on the design of odors.

To filter out fat from the vapor, one or more grease filters are provided on the suction section of an extractor hood through which the rising vapor flows and is thus cleaned. For optimal operation of the cooker hood these grease filters should be cleaned from time to time. For this purpose, the grease filters are usually provided removably on the intake section.

Various mechanisms have become known for attaching the grease filter to the suction portion of an extractor hood. For example, the grease filter can be screwed or held with magnets on the suction section. Screwing on the grease filter, however, is uncomfortable for a user and securing the grease filter with magnets is often difficult because accurate magnetic force must be set to reliably hold the grease filter and at the same time ease removal.

The publication DE 10 2013 212 921 A1 shows the connection of two filter elements in the first embodiment by means of at least one in both filter elements positively engaging pin and in the alternative second embodiment by means of at least one arranged between the two filter elements hinge connection. Further prior art is in the document DE 10 2004 043 069 A1 described.

In some cooker hoods, a so-called stud bolt receptacle is provided. In such an embodiment, one or more bolts are provided on the suction portion of the extractor hood, on which the grease filter is pushed or plugged with corresponding brackets. The brackets have a to the bolt adjusted bore on. The filter is held during assembly with the brackets in front of the bolts and pushed over a translational movement on the bolts. The removal of the grease filter via an opposite translational movement.

However, a disadvantage of such an attachment for the or the fat filter (s) is that a user tends to fold down the grease filter just when removing a substantially horizontally provided grease filter than to move it straight or translationally towards itself. As a result, the brackets for fixing the grease filter can wear out or even break. Thus, the correct removal of the grease filter for a user has difficulties or is uncomfortable because he can not intuitively pull down the grease filter down.

It is therefore the object of the present invention to provide an extractor hood with at least one removable grease filter available, wherein the grease filter is reliably added to the hood and can be removed easily.

This object is achieved by an extractor hood with a filter device according to the features of claim 1. Preferred developments of the invention are the subject of the dependent claims. Further advantages and features of the invention will become apparent from the embodiments.

The extractor hood according to the invention comprises a filter device which has at least one fastening device, wherein the fastening device comprises at least one receiving portion. The receiving portion has on at least one end face at least one insertion opening for at least one substantially rod-shaped fastening element. Furthermore, the receiving portion is at least partially open on at least one shell side.

The filter device is designed in particular as a grease filter. In this case, the filter device preferably comprises at least one filter element, at least one frame member holding the filter element and at least one fastening device.

The adjoining the insertion opening portion of the receiving portion is inventively formed as a receptacle for a substantially rod-shaped fastener, said receptacle is preferably formed as a substantially tubular receptacle.

The fastening device according to the invention is suitable and designed to safely receive the filter device on the intake section of an extractor hood. there the fastening device is in particular designed such that the filter device can be attached by means of the fastening device to a substantially rod-shaped fastening element on the suction portion of the extractor hood. In this case, the fastening device and the substantially rod-shaped fastening element are preferably designed such that no further fastening means for fastening the filter device to the extractor hood are necessary. The filter device is securely received by the plugging or pushing on the rod-shaped fastener to the suction portion of the hood.

The fastening device or the receiving portion of the fastening device according to the invention is designed such that, for example, designed as a stud bolts substantially rod-shaped fastening element can be inserted into the receiving portion.

In advantageous embodiments, the filter device has at least two fastening devices, wherein these are preferably provided so far away from each other that a stable attachment is made possible. In particular, if two or at least two fastening devices are provided, a particularly reliable reception of the filter device on the extractor hood can be ensured.

The receiving portion has on at least one shell side an open configuration. In this case, in particular, the jacket side is at least partially open, which is provided in the flow direction or flow direction through the filter device on the rear side of the fastening device. If, for example, a substantially horizontally oriented filter device is provided on the suction section of an extractor hood, the upper jacket side of the fastening device is preferably designed to be open at least in sections.

That at least one shell side of the receiving portion is at least partially open, according to the invention is to be understood that at least partially a franking or a slot is provided in the fastening device, wherein the open configuration preferably corresponds at least along a substantial longitudinal extension of the einzusteckenden rod-shaped fastener.

According to the invention, the receiving portion of the fastening device is preferably designed such that the rod-shaped fastening element securely received in this or at least a small clamping action is taken on this. For this purpose, depending on the embodiment, at least one undercut on the open-configured section is preferred the receiving portion provided to receive the fastener securely on or in the receiving portion.

The filter device is preferably guided with the fastening device or with the fastening devices and in particular with the insertion openings of the fastening devices in front of the one or more substantially rod-shaped fastening elements and pushed onto the fastening elements by means of a translational movement. In this case, the fastening elements can also be provided with a slight inclination on the suction section of an extractor hood, so that the fastening device or the filter device is held particularly securely on the rod-shaped fastening element.

The filter device according to the invention offers many advantages. In known fastening devices only one insertion opening is provided on at least one end face of the fastening device in the rule. As a result, it is necessary that both during the sliding of the filter device and during the removal of the filter device a translational movement takes place in the direction of the longitudinal extension of the rod-shaped fastening elements.

If the filter device is always plugged exactly straight or translational and just pulled off, such a filter device usually works reliably and it can also be reused after several attachment operations.

However, a user is often anxious, especially when removing the filter device these deduct rather down than translational, whereby conventional fasteners can easily wear or even destroyed. Then the filter device no longer holds reliably when re-attaching to the fasteners.

A considerable advantage of the filter device according to the invention is that the receiving section is designed to be open at least in sections on at least one jacket side. This makes it possible for the filter device to be pushed onto the fastening elements by means of a translatory movement, as in the case of conventional filter devices. In the case of the filter device according to the invention, moreover, as in the case of conventional filter devices, a translatory removal of the filter device can take place.

However, it is also possible by means of the embodiment according to the invention to remove the filter device by means of a rotational movement, wherein the filter device is moved in a translatory rather than a rotational manner. For example, in a horizontally oriented Filter device, the removal of the filter device of the fastener so also by pulling down the filter device done. Then, the fastener is led out of the fastener through the open portion of the receiving portion, so that the filter device can be removed without damaging the fastener.

Preferably, the receiving portion in the installed position at least partially open upwards designed. This is particularly advantageous in substantially horizontally disposed filter devices. In general, the open configuration is provided on the rear side or jacket side of the fastening device opposite the flow direction or in the flow direction.

Particularly preferably, the insertion opening and the adjoining receiving section at least in sections have a substantially roundish cross-section. In this case, it is particularly preferred that a substantially tubular receptacle for a substantially rod-shaped fastening element is provided in the receiving portion, wherein this tubular receptacle is configured open to at least one side towards at least one shell side of the fastening device. In this case, only a partial cross-section can be designed substantially round, wherein the roundish configuration is not provided in particular on the open side provided. Preferably, the receptacle then has at least one type of undercut on the open side.

According to the invention embodiment, the open configuration of the receiving portion is provided by at least one slot. Through this slot, a fastener can then penetrate by pulling off the filter device by means of a rotary movement or pivoting movement and be removed from the receiving section.

According to the invention the receiving portion is at least partially elastic. In this case, the receiving portion is at least partially elastically deformable, so that upon removal of the filter device, the receiving portion and / or the receptacle deformed such that an inserted fastener can be passed through the open portion of the receiving portion or through the slot. In this case, preferably, the tubular receptacle of the receiving portion or the insertion opening has a smaller cross-section than the open configured section or the slot of the receiving portion. Thus, a kind of undercut or undercut is created, resulting in a secure recording of Filter device on or leads to a fastener. Due to the deformable design or by the elastic design of the receiving portion of the receiving portion can be deformed such that a fastener can be passed through the otherwise narrow slot.

Preferably, the receiving portion comprises at least one clamping element with at least one clamping portion. In this case, a clamping element can be understood in particular to be an elastically deformable or displaceable element which defines an inserted fastening element in the receiving section. In other preferred embodiments, however, the clamping element may also be substantially rigid and preferably be pressed by other components against a fastener to set this.

In expedient developments, the clamping element and / or the clamping portion is at least partially substantially wedge-shaped. Due to the substantially wedge-shaped configuration, a clamping action can be achieved in a particularly simple and reliable manner, which secures an inserted fastening element to the receiving section.

Advantageously, the clamping portion has at least one radius. In particular, by adapting the shape of the clamping section to an inserted fastening element, a particularly secure fixing or receiving of the filter device on the suction section of the extractor hood can take place since the clamping element or the clamping section rests as accurately as possible on the fastening element.

Preferably, the receiving portion comprises at least one spring device. In this case, the spring device particularly preferably exerts at least one spring force on the clamping element, as a result of which a clamping action is effected between clamping element and fastening device or fastening element. In such an embodiment, when removing the filter device, the clamping element is pushed back against the spring device or against the spring force of the spring device, so that the fastening element can emerge through the open portion of the receiving portion or through the slot.

Preferably, at least one frame means is provided and the attachment means is preferably arranged on the frame means and / or a part of the frame means.

Particularly preferably, the fastening device is designed as a corner element. In such an embodiment, the fastening device is preferably part of the frame device or integrated into the frame device.

The extractor hood according to the invention offers many advantages. A considerable advantage is that a particularly easy removal of the filter device from the suction section of the extractor hood is made possible by the corresponding design of the filter device without damaging the fastening devices used for fastening the filter device to the extractor hood by a rotary pulling off the filter device.

Further advantages and features of the present invention will become apparent from the embodiments, which are explained below with reference to the accompanying figures.

Figur 1

eine rein schematische Ansicht einer erfindungsgemäßen Dunstabzugshaube mit einer erfindungsgemäßen Filtereinrichtung in einer Explosionsdarstellung;

Figur 2

eine rein schematische Darstellung der erfindungsgemäßen Dunstabzugshaube gemäß Figur 1 beim Einsetzen und beim Entnehmen einer erfindungsgemäßen Filtereinrichtung in drei Ansichten;

Figur 3

eine rein schematische Darstellung einer erfindungsgemäßen Dunstabzugshaube im Bereich des Ansaugabschnitts mit einer erfindungsgemäßen Filtereinrichtung in drei Ansichten;

Figur 4

eine rein schematische Darstellung einer Befestigungseinrichtung erfindungsgemäßen Filtereinrichtung in einer Ansicht von vorne und einer Ansicht von oben;

Figur 5

eine rein schematische Darstellung der erfindungsgemäßen Dunstabzugshaube gemäß Figur 1 beim Einsetzen und beim Entnehmen einer erfindungsgemäßen Filtereinrichtung in zwei Ansichten;

Figur 6

eine rein schematische Darstellung einer erfindungsgemäßen Dunstabzugshaube im Bereich des Ansaugabschnitts mit einer weiteren erfindungsgemäßen Filtereinrichtung;

Figur 7

eine rein schematische Darstellung der erfindungsgemäßen Dunstabzugshaube gemäß Figur 6 in drei weiteren Ansichten; und

Figur 8

eine rein schematische Darstellung der erfindungsgemäßen Dunstabzugshaube gemäß Figur 6 beim Abnehmen der Filtereinrichtung.

In the figures show:

FIG. 1

a purely schematic view of an extractor hood according to the invention with a filter device according to the invention in an exploded view;

FIG. 2

a purely schematic representation of the invention according to extractor hood FIG. 1 during insertion and removal of a filter device according to the invention in three views;

FIG. 3

a purely schematic representation of an extractor hood according to the invention in the region of the suction with a filter device according to the invention in three views;

FIG. 4

a purely schematic representation of a fastening device filter device according to the invention in a view from the front and a view from above;

FIG. 5

a purely schematic representation of the invention according to extractor hood FIG. 1 during insertion and removal of a filter device according to the invention in two views;

FIG. 6

a purely schematic representation of an extractor hood according to the invention in the region of the suction with a further filter device according to the invention;

FIG. 7

a purely schematic representation of the invention according to extractor hood FIG. 6 in three further views; and

FIG. 8

a purely schematic representation of the invention according to extractor hood FIG. 6 when removing the filter device.

In FIG. 1 is purely schematically an inventive hood 100 with a suction portion 102 and a filter device 1 according to the invention in a partial exploded view purely schematically.

The extractor hood 100 is designed in the embodiment shown here as a built-in unit 103, which can be mounted for example in a wall cabinet above a hob. In the exemplary embodiment shown, the extractor hood 100 comprises a pull-out vapor guide screen 104, which collects the ascending vapor and feeds it to the suction section 102 or the filter device 1. In the exemplary embodiment shown, the vapor-conducting screen is oriented substantially horizontally, and the filter device 1 is also oriented substantially horizontally in the installation eye. In other embodiments, the orientation of the filter device 1 may also be provided differently, for example, substantially vertically in a Wandabsaugung.

For fastening the filter device 1 to the suction section 102 of the extractor hood 100, two fastening elements 101 are provided on the suction section 102, onto which the filter device 1 can be attached by means of corresponding fastening devices 2 and held there.

In the illustrated embodiment, the filter device 1 comprises a frame device 12 and a filter element 17 held therein FIG. 1 not to be recognized fasteners 2 are assigned in the embodiment shown, the frame means 12.

In FIG. 2 3 are purely schematic three views illustrating the insertion and removal of a filter device 1 according to the invention in or from the suction section 102 of an inventive extractor hood.

In this case, in the embodiment shown, the filter device 1 when inserting the filter device 1 with in FIG. 2 not to be recognized fastening means 2 is held substantially horizontally in front of the fastening elements 101 to the suction portion 102. About a translational movement, the filter device 100 is pushed with the fasteners 2 on the fasteners 101. As a result, the filter device 1 is securely received on the suction section 102 of the extractor hood 100.

If the filter device 1 has to be removed again from the suction section 102, for example for cleaning purposes, this can be done via the translatory movement of the filter device 1, as was the case with the insertion of the filter device 1. Then, for example, a user pulls on the filter device 1 and moves this translatory toward him, as a result of which the fastening devices 2 of the filter device 1 are again pulled off the fastening elements 101 on the suction region 102 of the extractor hood 100.

Another possibility of removing the filter device 1 is in the lower illustration in FIG FIG. 2 shown purely schematically. Thus, it is also possible that a user detects the filter device 1 and the filter device 1 by a rotational movement or by a pivoting, ie in the illustrated embodiment by pulling off the filter device 1 substantially downwards, triggers.

Thus, a user in the extractor hood 100 according to the invention or in the inventive filter device 1 two options are available to remove an inserted filter device 1 from the suction portion 102 of the hood 100. On the one hand, a translational movement for releasing the filter device 1 can be used. On the other hand, a rotational movement, that is, for example, a removal or pivoting of the filter device 1 down can be used to solve the filter device 1.

Due to the special design of the fastening device 2 of the filter device 1 according to the invention, the detachment or removal of the filter device 1 is made possible by means of a rotational movement, without the fastening devices 2 of the filter device 1 being damaged or becoming veiled. As a result, the filter device 1 can be removed more easily, for example for cleaning purposes.

In FIG. 3 is purely schematic of the suction portion 102 of an extractor hood 100 according to the invention with an inserted filter device according to the invention 1 in the region of a fastener 101 from above shown in three different representations.

It can be seen that the filter device 1 comprises a frame device 12 and a filter element 17. For receiving the filter device 1 on the suction section 102 or for attaching the filter device 1 to the fastening elements 101, two fastening devices 2 are provided in the embodiment shown, in FIG. 3 only a fastening device 2 can be seen.

The fastening device 2 in this case has a receiving section 3 for the fastening element 101, wherein an insertion opening 4 for the fastening element 101 is provided on an end face 5 of the receiving section 3 or the fastening device 2.

In the exemplary embodiment shown, the fastening devices 2 are each provided on an edge section 13 of the filter device 1, wherein the fastening devices 2 are assigned to the frame device 12 in the embodiment shown. In this case, the fastening devices 2 are provided as corner elements 14 in the illustrated embodiment, so that unnecessary filter surface of the filter element 17 is claimed.

In the two smaller detailed representations, a sectional view through the plane A-A and the plane D-D are respectively shown. Again, it can be seen that the fastener 101 is securely received in the receiving portion 3 and in the receptacle 16 of the receiving portion 3. The fastening elements 101 are provided in the embodiment shown by substantially rod-shaped bolts or studs 105.

In FIG. 4 is purely schematically a fastening device 2 in two purely schematic views once on the front side 5 and once on the shell side 6 shown. The fastening device 2 comprises a receiving section 3, wherein an insertion opening 4 for the substantially rod-shaped fastening element 101 or for the stud bolt 105 is provided on the end face 5 of the fastening device 2.

On the shell side 6, a clearance or a slot 7 is provided in the exemplary embodiment shown, so that the receiving portion 3 or the receptacle 16 formed in the receptacle 16 is designed to be open towards the shell side 6.

The insertion opening 4 provided in the end face 5 is adjoined by a substantially tubular section or a tubular receptacle 16 of the receiving section 3, into which the fastening element 101 can be inserted. In order to ensure a secure reception of the filter device 1 on or in the suction section 102, an undercut 18 is provided on the receiving section 3 or on the receptacle 16.

Thus, it is possible that by a translational movement of the filter device 1, the fastening devices 2 come into contact with the fastening elements 101 and can be pushed onto them. The removal of the filter device can be done by a translational backward movement.

The fact that the receiving section 3 or the receptacle 16 is designed to open towards the shell side 6, the filter device 1 can also be removed by a rotational movement, wherein the fasteners 101 can then be passed through the franking or the slot 7.

In order not to damage the fastening devices 2 or the receiving section 3 during the rotary removal or when swinging out the filter device 1, the fastening device 2 or the receiving section 3 or the receptacle 16 is substantially elastic. In this case, the fastening device 2 or the receiving portion 3 or the receptacle 16 is provided in particular elastically deformable, whereby the receiving portion 3 is deformed under force by rotational movements of the filter of the filter device 1 such that the fasteners 101 can pass through the slot 7, without to damage the receiving portion 3 and the fastening device 2.

In the upper illustration in FIG. 5 is shown purely schematically plugging or removal of the filter device 1 by a translational movement. In this case, the filter device 1 is pushed onto the fastening elements 101 with the fastening devices 2 by means of a translatory movement. Also, a release of the filter device 1 can be done by a translational movement.

In the illustration below is purely schematically indicated that the filter device 1 can also be removed by means of a rotary movement or by means of a pivoting movement of the fasteners 101. For this purpose, the fastening device 2 on a shell side 6 on a slot 7, through which the fasteners 101 can pass during rotational withdrawal of the filter device 1. By a preferably elastic embodiment of the fastening device 2 or the receiving portion 3, the filter device 1 can be easily pulled down without the fastening devices 2 and / or the receiving portion 3 is damaged.

In FIG. 6 a further embodiment of an extractor hood 1 according to the invention with a filter device 1 according to the invention is shown. In this case, the receiving portion 3 of the filter device 1 in the receiving portion 3 comprises a clamping element 8, which is clamped by means of two spring means 11 against a fastening element 101. In such an embodiment, on the one hand, an effective clamping action between filter device 1 or fastening device 2 and the fastening elements 101 can be achieved. On the other hand, an elastic or elastically deformable receiving section 3 or an elastically deformable fastening device 2 is provided.

In FIG. 7 are several views of the embodiment according to FIG. 6 shown in purely schematic representations. It can be seen that the receiving portion 3 or the fastening device 2 comprises a clamping element 8 with a clamping portion 9, wherein the clamping element 8 and the clamping portion 3 is pressed by means of the spring means 11 against an inserted fastener 101.

In order to ensure as tight as possible clamping of the clamping portion 9 against the substantially rod-shaped fastening element 101, the clamping portion 9 and the clamping element 8 is designed substantially wedge-shaped. In addition, the clamping portion 9 in the embodiment shown has a radius 10. As a result, on the one hand an even better clamping effect and on the other hand an undercut 18 is provided. Through the undercut 18, a receptacle 16 for the fastening element 101 is provided, which ensures a secure hold of the filter device 1 in or on the suction section 102.

In FIG. 8 , purely schematically the removal of the in the FIGS. 6 and 7 shown embodiment of a filter device 1 according to the invention by means of a rotational movement.

It can be seen in particular in the small representation that when removing the filter device 1, the clamping element 8 is pushed back against the spring force of the spring means 11, whereby the fastener 101 can be passed through the franking or the slot 7. This results in a loosening of the filter device 1, wherein the fastening device 2 is not damaged by the recessed against the spring force of the spring device 11 clamping element 8.

LIST OF REFERENCE NUMBERS

1

filtering device

2

fastening device

3

receiving portion

4

insertion

5

front

6

Shellside

7

slot

8th

clamping element

9

clamping section

10

radius

11

spring means

12

frame means

13

edge section

14

Corner

15

cross-section

16

admission

17

filter element

18

undercut

19

studs

100

Hood

101

fastener

102

suction

103

built-in device

104

Vapor guide

105

studs

Claims (10)

1. Extractor hood (100) comprising at least one filter device (1), wherein the extractor hood (100) has at least one suction portion (102) comprising at least one substantially rod-shaped fastening element (101) for receiving the at least one filter device on the suction portion (102), wherein the filter device (1) has at least one fastening device (2) which comprises at least one receiving portion (3) for receiving the fastening element (101), wherein the receiving portion (3) provides a substantially tubular receptacle for the substantially rod-shaped fastening element (101), wherein the receiving portion (3) has at least one end face (5) and a lateral face (6), wherein the receiving portion (3) has at least one insertion opening (4) on at least one end face (5), through which opening the substantially rod-shaped fastening element (101) can be translationally moved in the direction of the longitudinal extension of the substantially rod-shaped fastening element (101) both when pushing on the filter device (1) and when removing the filter device (1), wherein a slot (7) in the fastening device (2) is provided on the one lateral face (6) of the receiving portion (3) and at least one undercut (18) is provided on the slot (7) in order to securely receive the fastening element (101) on or in the receiving portion (3), wherein the receiving portion (3) is resiliently deformable and can be deformed such that a fastening element (101) can be guided through the otherwise too narrow slot (7) by means of a rotational movement or pivoting movement and can be removed from the receiving portion.
2. Extractor hood (100) according to claim 1, characterised in that the receiving portion (3) is designed so as to be open at the top at least in portions when in the installation position.
3. Extractor hood (100) according to either of the preceding claims, characterised in that the insertion opening (4) and/or the receiving portion (3) adjoining the insertion opening (4) has a substantially round cross section (15) at least in portions.
4. Extractor hood (100) according to any of the preceding claims, characterised in that the receiving portion (3) comprises at least one clamping element (8) that has at least one clamping portion (9).
5. Extractor hood (100) according to the preceding claim, characterised in that the clamping element (8) and/or the clamping portion (9) is substantially wedge-shaped at least in portions.
6. Extractor hood (100) according to either of the two preceding claims, characterised in that the clamping portion (9) has at least one radius (10).
7. Extractor hood (100) according to any of the preceding claims, characterised in that the receiving portion (3) comprises at least one spring device (11).
8. Extractor hood (100) according to any of the preceding claims, characterised in that at least one frame device (12) is provided, and in that the fastening device (2) is arranged on the frame device (12) and/or is part of the frame device (12).
9. Extractor hood (100) according to any of the preceding claims, characterised in that the fastening device (2) is provided on at least one edge portion (13) of the frame device and/or of the filter device.
10. Extractor hood (100) according to any of the preceding claims, characterised in that the fastening device (2) is designed as a corner element (14).

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