EP3825613B1 - Extractor hood - Google Patents

Description

The present invention relates to an extractor hood comprising at least one housing device which delimits at least one opening to at least one suction section for rising vapors, at least one removable filter device being arranged in the opening. The filter device is held in the opening by at least two holding devices when inserted.

Extractor hoods are often installed above hotplates in order to extract the fatty vapors that arise during cooking and, in particular, to remove fat.

Extractor hoods usually have at least one filter or at least one grease filter through which the rising vapor is sucked into the extractor hood by means of a fan. The air flow, which has been freed from vapors and fat, is then blown back into the kitchen using the fan in a recirculation mode or blown out of the kitchen in an exhaust air mode.

So that the grease filter can be easily cleaned, for example in the dishwasher, it is usually removable on the extractor hood. Ideally, the filter should be removed by the user easily, quickly and without tools. The publication DE 10 2018 201 046 A1 discloses an extractor hood with a suction opening and a holding frame for filter elements arranged on the housing of the extractor hood. The holding frame has movable pins that can engage in pin openings on the device housing. This way the holding frame can be attached to the suction opening.

For this purpose, for example, filters have become known which have webs or hooks on one side which are inserted into corresponding openings in the extractor hood. On the other hand, the filter then has a retractable lock, often called a catch. Using such a system, the filter can be reliably attached to the extractor hood and removed quickly and easily. An extractor hood with a filter element, which is connected to the housing of the extractor hood on one side via a pivot bearing and has a locking means for connection to the housing of the extractor hood on the other side, is from the publication DE 10 2012 201 409 A1 known.

From the publications US 2002174632 A1 and AU514359 B2 as well as EP 1798481 A2 It is known that a filter device in the extractor hood is held by movable holding elements, the holding elements acting non-positively on the side surfaces of the filter devices.

The publication US 2007193234 A1 discloses an extractor hood in which movable holding elements are dispensed with, in which the filter device itself is designed to be deformable.

The disadvantage, however, is that the effective filter area is reduced by the locking components on the filter. In addition, the lock is often made of plastic, so that the locking mechanism can become brittle when cleaned in the dishwasher and, in the worst case, even break. In addition, plastic components in the dishwasher often become unsightly over time. It is therefore the object of the present invention to provide an extractor hood which at least partially does not have the disadvantages mentioned above, in particular the filter being easy to remove and insert and in which a filter with the largest possible filter area can be realized.

This object is achieved by an extractor hood with the features of claim 1. Preferred developments of the invention are the subject of the dependent claims. Further advantages and features of the invention result from the exemplary embodiments.

The extractor hood according to the invention comprises at least one housing device which delimits at least one opening to at least one suction section for rising vapors, at least one removable filter device being arranged in the opening. This at least one filter device is held in the opening by at least two holding devices when inserted. These holding devices are arranged on the housing device in the area of the opening, with at least one holding device comprising at least one holding element, which can be displaced at least in sections between at least one holding position and at least one removal position.

The extractor hood according to the invention can be provided in various configurations. In particular, it concerns the attachment of the filter device in the opening for sucking in vapors. For example, a headroom hood can be provided, a freely hanging hood, a flat panel hood or even an extractor hood integrated into a piece of furniture.

The two holding devices for receiving the filter device are provided on opposite sides of the opening, so that holders or holding devices are provided on at least two opposite sides.

The holding devices are arranged or accommodated on and/or in the housing device and/or are formed at least in sections by the housing device. In this case, one and/or both holding devices can preferably also be manufactured in one piece or at least in sections in one piece with the housing device and/or connected to it.

The holding position is in particular the position in which the filter or the filter device is received in the opening in the suction section in the operational state. The removal position is in particular the position in which the holding element of a holding device is present when the filter device can be removed from the opening for sucking in vapors or from which at least one holding device with a displaceable holding element can be removed. The removal position is in particular also the position in which the holding element of a holding device is present when the filter device can be inserted into the opening for sucking in vapors or from the at least one holding device with a displaceable holding element.

Preferably, the holding element can be moved by hand from the holding position to the removal position, with provision being made in particular that no tools or aids are required to move the holding element from one position to the other in order to place the filter device in or out of the opening the opening.

Removing the filter device, in particular removing it without tools, can be advantageous, especially for cleaning the filter device.

Depending on the design, the holding element can also be moved from one position to the other automatically, for example by means of a motor.

The holding devices are arranged on the housing device or assigned to the housing device. In particular, it is preferred that the holding devices are provided exclusively on the housing device, which means in particular that no parts of the holding device are assigned to the filter device or arranged or provided on it.

The extractor hood according to the invention offers many advantages. A significant advantage is that the provision of the holding devices on the housing device makes it possible to provide the largest possible filter surface on the filter device. This is made possible in particular by the fact that no components for receiving the filter device in the suction section on the filter device have to be provided. It is therefore possible to provide the filter device almost exclusively from filter material. With conventional filter devices or extractor hoods, e.g. B. a catch or the like is provided on the filter device, which engages in a corresponding receptacle in the extractor hood. On the one hand, such a design blocks installation space for filter material. On the other hand, such fastening means for the filter device are then cleaned when the filter device is cleaned, for example in the dishwasher, as a result of which they can become brittle and unsightly relatively quickly. This is undesirable because it creates optical disadvantages and, in the worst case, the filter device may have to be replaced due to the material becoming brittle.

According to the invention, the holding element in the holding position projects at least in sections further from the housing device into the opening than in the removal position. The holding element includes at least one support for the filter device. This makes it possible for the filter device to rest on the holding element when it is in the holding position.

If the holding element is moved from the holding position to the removal position, the support for the filter device is also displaced, so that the filter device is then no longer held in the holding device with the holding element and can be removed downwards from the suction section.

According to the invention, the holding element comprises at least one locking lug or is designed as a locking lug. Such a design can provide a simple option for fixing the filter devices.

According to the invention, the holding device comprises at least one preloading device, wherein the displaceable holding element is preloaded in the holding position. A preloading device can preferably be provided by a spring and/or at least one spring element. By means of such a preloading device, the holding element can then be pressed, for example, into the holding position. If the holding element is then moved into the removal position by a user against the preload force, the filter device can be removed.

According to the invention it is provided that the holding element is automatically moved back into the holding position as soon as the user releases the holding element again. Even when inserting the filter device, the holding element is pushed away or shifted into the removal position by the user or by the filter device, so that the filter device is moved into the desired position and is then fixed in this position by the resilient holding element.

Preferably, the holding element is displaced rotationally and/or translationally from the holding position to the removal position and vice versa. The movement of the holding element can be linear, for example. But it is also possible for the holding element to be articulated on one side and z. B. can be tilted about a pivot axis. In other embodiments, a type of latch can also be provided additionally or exclusively, which can also function without a preload device. The rule is, for example, pushed into the housing to remove the filter and pulled out again when the filter is inserted.

According to the invention, the displaceable holding element is at least partially accommodated in the housing device in the removal position. It is also possible for the holding element to be completely accommodated in the housing device, depending on the design. In particular, it is expedient that the holding element can be moved so far into the housing device and thus out of the opening that the filter device can be removed from the opening of the suction section. In particular, it is possible to insert the filter device as optimally and tightly as possible into the opening of the suction section, so that on the one hand a large filter area and on the other hand a tight connection are made possible.

According to the invention, at least one holding device comprises at least one stop. Such a stop serves in particular to align the filter device. Such a stop can in particular also be designed to be resilient or include a pre-loading device or cooperate with such, so that the stop automatically aligns the filter device in the opening in a suitable position.

The holding element particularly preferably has at least one bevel. Such a view can be designed in particular in the form of a ramp. It is particularly preferred that the ramp or the bevel becomes larger or wider in the suction direction of the vapor. This makes it possible, in particular, for the filter device to automatically move the holding element from the holding position to the removal position when it is inserted. This is done by a user, for example, using the filter device Brings contact with the holding element and then pushes it further towards the predetermined position. Due to the bevel, the filter device then pushes the holding element from the holding position into the removal position. As soon as the filter devices are in the desired position, the holding element is pushed back by the preloading device so that the filter device is held securely in the opening.

Preferably, the filter device comprises filter material that can be flowed through over essentially the entire longitudinal and transverse extents. In particular, the filter device does not include any components of the holding device.

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

Figur 1

eine rein schematische Darstellung eines Ausführungsbeispiels einer Dunstabzugshaube in einer Schnittansicht;

Figur 2

eine rein schematische Darstellung eines Ausführungsbeispiels einer Dunstabzugshaube im Bereich des Fettfilters in einer Schnittansicht;

Figur 3

eine rein schematische vergrößerte Darstellung der in Figur 2 markierten Bereiche mit installierter Filtereinrichtung; und

Figur 4

eine rein schematische vergrößerte Darstellung der in Figur 2 markierten Bereiche beim Einsetzen bzw. Entnehmen der Filtereinrichtung.

Show in the figures:

Figure 1

a purely schematic representation of an exemplary embodiment of an extractor hood in a sectional view;

Figure 2

a purely schematic representation of an exemplary embodiment of an extractor hood in the area of the grease filter in a sectional view;

Figure 3

a purely schematic enlarged representation of the in Figure 2 marked areas with filter equipment installed; and

Figure 4

a purely schematic enlarged representation of the in Figure 2 marked areas when inserting or removing the filter device.

In Figure 1 An extractor hood 1 is shown purely schematically in a sectional view from the side. The extractor hood 1 here comprises a housing device 2, which forms an opening 3 to a suction section 4 here at the bottom of the extractor hood 1.

A fan device 17 is arranged within the extractor hood 1 or within the housing 2, which sucks the rising vapors through the opening 3 and thus through a filter device arranged in the opening 3 of FIG . Depending on the design of the extractor hood 1, the air circulation can be designed in such a way that the now filtered vapor is blown out of the kitchen by an appropriate air duct in an exhaust air mode. Depending on the design, a recirculation mode can also be provided, with the cleaned air or the cleaned vapor being blown back into the kitchen.

Furthermore, it is shown that a protective grille 18 is provided within the extractor hood 1 in the air duct behind the filter device 5, so that a user cannot reach into the fan device 17 even when the filter device 5 is removed.

The filter device 5 is designed as a grease filter 19 in the exemplary embodiment shown here. This grease filter 19 includes appropriately designed filter material 16 through which the rising vapor is passed. The vapor is freed from fat components using the grease filter 19. Depending on the design, additional filters can also be provided in the extractor hood 1 or combined with the filter device 5. For example, it is also possible for odor filters such as activated carbon filters to be integrated additionally or into the grease filter device 5 or into the grease filter 19.

So that the filter device 5 can be removed from the extractor hood 1 or the opening 3 of the suction section 4, holding devices 6, 7 are provided on the left and right in the exemplary embodiment shown here, one of which, in the exemplary embodiment shown here, is the left holding device 6 movable holding element 8, via which the filter device 5 can be removed quickly and easily from the opening 3 of the suction section 4. How this holding device 6 or holding element 8 is designed is explained in more detail in the following figures.

In Figure 2 is an enlarged view of the area of the opening 3 of the suction section 4 of an exemplary embodiment of an extractor hood 1 shown in a purely schematic sectional view. Here too you can see the opening 3, in which a filter device 5 is arranged, which is designed here as a grease filter 19. The protective grille 18 can also be seen here in the air flow direction within the extractor hood and behind the filter device 5.

Furthermore, there are Figure 2 the left holding device 6 and the right holding device 7 can be seen. The two areas marked with a circle Figure 2 are in the Figures 3 and 4 shown enlarged in order to better illustrate the functionality of the holding devices 6, 7.

In the Figures 3 and 4 It can be seen that the left holding device 6 comprises a holding element 8, which can be displaced from a holding position 9 into a removal position 10.

The filter device 5 is held in a predetermined operating position by the holding device 6 or by the holding element 8 in the holding position 9. On the right side, the holding devices 7 are designed differently in the exemplary embodiment shown. This includes This holding device 7 here is not a displaceable holding element 8. Depending on the design, both sides or the opposing holding devices 6, 7 can also be designed the same.

In the exemplary embodiment shown, the right holding device 7 includes a stop 14, which enables optimal alignment of the filter device 5 or the grease filter 19 in the opening 3 of the suction section 4. The stop 14 here comprises a preloading device 13. This resilient stop 14 aligns the filter device 5 in the opening 3 and, in interaction with the stop 14, a certain amount of play is created on the left side, so that the filter device 5 is easier to use and always optimally centered in the opening 3.

Basically, the right holding device 7 is provided here by a type of U-profile 20, which provides a support 11 for the filter device 5 and fixes the filter device 5 up and down.

As previously described, the holding device 6 in the exemplary embodiment shown here is designed differently than the holding device 7 on the right side. The holding device 6 includes a holding element 8 on the left side, which is in Figure 3 is in the holding position 9. However, the holding element 8 can be turned into an in. against the force of a preloading device 13 Figure 4 removal position 10 shown can be relocated.

If the holding element 8 is in the holding position 9, the holding element of the filter device 5 offers a support 11, so that the filter device 5 is held in the opening 3 of the suction section 4 by the two holding devices 6, 7.

To remove the filter device 5, the holding element 8, which is designed here as a locking lug 12 or comprises a locking lug 12, is pushed further out of the opening 3 in the direction of the housing device 2 or into the housing device 2. This clears the path for the filter device 5 downwards so that it can be removed.

In Figure 4 it is shown that the preloading device 13 was pushed together by pressing or actuating the holding element 8. When inserting or releasing the holding element 8, the holding element 8 moves back into the holding position 9.

Furthermore, in the Figures 3 and 4 It can be seen that the holding element 8 has a bevel 15. This ramp-like bevel 15 makes it particularly easier to insert the filter device 5 into the opening 3 in the exemplary embodiment shown.

In the exemplary embodiment shown here, it is possible, among other things, to first insert the filter device 5 into the holding device 7 on the right side and then simply press it against the holding element 8 using the filter device 5.

Due to the bevel 15, the holding element 8 is displaced from the holding position 9 into the removal position 10 by the pressure of the filter device 5 against the holding element 8, so that the filter device 5 can pass through the holding element 8. As soon as the filter device 5 is above the holding element 8, the holding element 8 snaps or moves back into the holding position 9 and provides a support 11 for the filter device 5.

The fact that the holding devices 6, 7 are assigned to the housing device 2 or are arranged on it or are integrated into it makes it possible to provide the largest possible filter area on the filter device 5, since there is no space for the provision of fastening mechanisms on the Filter device 5 is lost.

Reference symbol list

1

extractor hood

2

Housing facility

3

opening

4

Intake section

5

Filter device

6

Holding device

7

Holding device

8th

Holding element

9

Holding position

10

Picking position

11

edition

12

detent nose

13

Preload device

14

attack

15

beveling

16

Filter material

17

Fan device

18

protective grille

19

Grease filter

20

U-profile

Claims (10)

1. Extractor hood (1) comprising at least one housing device (2) which defines at least one opening (3) to at least one intake portion (4) for rising vapours,

   wherein at least one removable filter apparatus (5) is arranged in the opening (3), which is held in the inserted state in the opening (3) by at least two holding apparatuses (6, 7),

   wherein at least one holding apparatus (6) comprises at least one holding element (8) which can be displaced at least in portions between at least one holding position (9) and at least one removal position (10),

   the holding apparatuses (6, 7) are arranged on the housing apparatus (2) on opposite sides of the opening (3),

   the displaceable holding apparatus (6) comprises at least one preloading apparatus (13) and the opposite holding apparatus (7) has a stop (14),

   characterized in that

   the holding element (8) is designed as a latching tab (12) and comprises at least one support (11) for the filter apparatus (5), wherein the support (11) is displaced with the holding element (8),

   the displaceable holding element (8) is accommodated at least in portions in the housing apparatus (2) and in the holding position (9) projects at least in portions further from the housing apparatus (2) into the opening (3) than in the removal position (10),

   the preloading apparatus (13) acting on the holding element (8) causes the holding element (8) to move automatically back into the holding position and is preloaded in the holding position (9).
2. The extractor hood (1) according to claim 1, wherein

   the preloading apparatus (13) has at least one spring and/or at least one spring element
   or

   the preloading apparatus (13) is designed as a spring and/or as a spring element.
3. The extractor hood (1) according to any of the preceding claims, wherein the holding element (8) is rotationally and/or, particularly in the bearing plane of the filter apparatus (5), translationally displaceable from the holding position (9) into the removal position (10) and vice versa.
4. The extractor hood (1) according to any of the preceding claims, wherein the displaceable holding element (8) is completely accommodated in the housing apparatus (2) in the removal position (10).
5. The extractor hood (1) according to any of the preceding claims, wherein at least one holding apparatus (6, 7) comprises at least one stop (14) which is translationally movable, particularly in the bearing plane of the filter apparatus (5).
6. The extractor hood (1) according to any of the preceding claims, wherein the holding element (8) has at least one bevelled edge (15).
7. The extractor hood (1) according to any of the preceding claims, wherein when the holding element (8) is displaced from the holding position into the removal position, the support (11) for the filter apparatus (5) is also displaced, so that the filter apparatus (5) is no longer held by the holding apparatus (6) with the holding element (8) and can be removed downwards from the intake portion.
8. The extractor hood (1) according to the preceding claim, wherein the filter apparatus (5) presses against the bevelled edge (15) when it is inserted into the opening (3) of the extractor hood (1) and the holding element (8) is displaced away from the filter apparatus (5) until the filter apparatus (5) has reached the end location.
9. The extractor hood (1) according to the preceding claim, wherein the holding element (8) automatically displaces towards the filter apparatus (5) as soon as the filter apparatus (5) has reached the end location.
10. The extractor hood (1) according to any of the preceding claims, wherein the filter apparatus (5) comprises filter material (16) through which air can flow over the entire longitudinal extension and transverse extension.

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