DE102019131272B4 - Extractor hood - Google Patents

Abstract

Extractor hood (1) comprising at least one housing device (2) which defines at least one opening (3) to at least one suction section (4) for rising vapors,
wherein at least one removable filter device (5) is arranged in the opening (3), which is held in the inserted state in the opening (3) by at least two holding devices (6, 7),
wherein at least one holding device (6) comprises at least one holding element (8) which is displaceable at least in sections between at least one holding position (9) and at least one removal position (10),
characterized in that
the holding devices (6, 7) are arranged on the housing device (2) in the region of the opening (3) and
the holding element (8) in the holding position (9) extends at least partially further from the housing device (2) into the opening (3) than in the removal position (10),
wherein the holding element (8) comprises at least one locking lug (12) or is designed as a locking lug (12) and/or the displaceable holding element (8) is at least partially accommodated in the housing device (2) in the removal position (10).

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, wherein at least one removable filter device is arranged in the opening. The filter device is held in the inserted state in the opening by at least two holding devices, wherein at least one holding device comprises 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.

Extractor hoods are often installed above cooking areas to extract the fatty fumes that rise during cooking and, in particular, to remove grease.

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

For commercial extractor hoods such as those described in the publication EP 1 798 481 A2 As shown, the filter elements are held against gravity by two opposing holding rails. The positional securing within the rail system, in particular the closing of gaps between individual filter elements, is achieved by means of a spring element that applies a force to the filter elements from the side.

To make it easy to clean the grease filter, for example in the dishwasher, it is usually mounted on the extractor hood in a removable manner. The user should ideally be able to remove the filter easily, quickly and without the need for tools. The publication EN 10 2018 201 046 A1 discloses an extractor hood with an intake opening and a holding frame for filter elements arranged on the housing of the extractor hood. The holding frame has movable pins which can engage in pin openings on the device housing. This allows the holding frame to be attached to the intake opening.

For example, filters have become known which have bars or hooks on one side which are inserted into corresponding openings in the extractor hood. On the other side, the filter then has a retractable lock, often also 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 device for connection to the housing of the extractor hood on the other side is known from the publication EN 10 2012 201 409 A1 known. The disadvantage, however, is that the effective filter surface is reduced by the locking components on the filter. In addition, the locking mechanism 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 aforementioned disadvantages, wherein in particular the filter is easy to remove and insert and wherein a filter with the largest possible filter surface 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 subclaims. Further advantages and features of the invention emerge 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, wherein at least one removable filter device is 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, wherein at least one holding device comprises 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 designs. In particular, it concerns the fastening of the filter device in the opening for sucking in fumes. 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 in particular on opposite sides of the opening, so that holders or holding devices are provided on at least two opposite sides. It is also possible that additional holding devices are provided on other sides of the opening or that the holders are not opposite each other.

According to the invention, 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 one piece in sections 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 accommodated in the opening in the intake section in the normal operating 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 the at least one holding device with a movable holding element. 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 movable holding element.

Preferably, the holding element can be moved by hand from the holding position to the removal position, wherein it is particularly provided that no tool or aid is required to move the holding element from one position to the other in order to place the filter device in the opening or to remove it from the opening.

In this case, the removal of the filter device, in particular the removal without tools, can be advantageous, in particular for cleaning the filter device.

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

According to the invention, the holding devices are arranged on the housing device or are 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 are arranged or provided on it.

The extractor hood according to the invention offers many advantages. A significant advantage is that by providing the holding devices on the housing device, it is 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 holding the filter device in the intake section have to be provided on the filter device. This makes it possible to provide the filter device almost exclusively from filter material.

In conventional filter devices or extractor hoods, for example, a catch or similar 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 elements for the filter device are then cleaned when the filter device is cleaned, for example in the dishwasher, which can make them brittle and unsightly relatively quickly. This is not desirable, as it creates visual disadvantages and, in the worst case, the brittleness of the material can make it necessary to replace the filter device.

According to the invention, the holding element in the holding position extends at least partially further from the housing device into the opening than in the removal position. The holding element advantageously also comprises at least one support for the filter device. This makes it possible for the filter device to rest on the holding element when the latter is in the holding position. If the holding element is moved from the holding position to the removal position, the support surface for the filter device is also moved, so that the filter device is no longer held in the holding device with the holding element and can be removed downwards from the suction section.

In an embodiment 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 possibility for fixing the filter devices.

Preferably, the holding device comprises at least one preloading device, wherein the displaceable holding element is preloaded in particular in the holding position. A preloading loading device is preferably 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 into the holding position, for example. If the holding element is then moved into the removal position by a user against the preloading force, the filter device can be removed. As soon as the user lets go of the holding element, it is automatically moved back into the holding position. When inserting the filter device, the holding element is also pushed away by the user or by the filter device or moved into the removal position, so that the filter device is moved into the desired position and then fixed in this position by the spring-back holding element.

Preferably, the holding element is moved 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. However, it is also possible for the holding element to be hinged on one side and, for example, to be tiltable about a pivot axis. In other embodiments, a type of latch can also be provided in addition or exclusively, which can also function without a preloading device. The latch is pushed into the housing, for example, to remove the filter and pulled out again when the filter is inserted.

In an embodiment according to the invention, the displaceable holding element is accommodated in the housing device at least in sections in the removal position. It is also possible for the holding element to be accommodated completely 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 intake section. In this way, it is particularly possible to insert the filter device into the opening of the intake section as optimally and tightly as possible, so that on the one hand a large filter surface and on the other hand a tight connection are made possible.

Preferably, at least one holding device comprises at least one stop. Such a stop serves in particular for aligning the filter device. Such a stop can in particular also be designed to be spring-loaded or comprise a preloading device or interact with such a device, 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 bevel can in particular be designed in the manner 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 inserted. This is done by a user, for example, bringing the filter device into contact with the holding element and then pushing it further towards the predetermined position. The bevel then pushes the filter device the holding element from the holding position to the removal position. As soon as the filter device is 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 through which flow can pass over substantially the entire longitudinal and transverse extent. In particular, the filter device does not comprise any components of the holding 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.

• 1 eine rein schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Dunstabzugshaube in einer Schnittansicht;
• 2 eine rein schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Dunstabzugshaube im Bereich des Fettfilters in einer Schnittansicht;
• 3 eine rein schematische vergrößerte Darstellung der in 2 markierten Bereiche mit installierter Filtereinrichtung; und
• 4 eine rein schematische vergrößerte Darstellung der in 2 markierten Bereiche beim Einsetzen bzw. Entnehmen der Filtereinrichtung.

In the figures show:

• 1 a purely schematic representation of an embodiment of an extractor hood according to the invention in a sectional view;
• 2 a purely schematic representation of an embodiment of an extractor hood according to the invention in the area of the grease filter in a sectional view;
• 3 a purely schematic enlarged representation of the 2 marked areas with installed filter equipment; and
• 4 a purely schematic enlarged representation of the 2 marked areas when inserting or removing the filter device.

In 1 1 shows a purely schematic sectional view of an extractor hood 1 according to the invention from the side. The extractor hood 1 here comprises a housing device 2, which forms an opening 3 to an intake section 4 at the bottom of the extractor hood 1.

A fan device 17 is arranged inside the extractor hood 1 or inside the housing 2, which sucks the rising vapors through the opening 3 and thus through a filter device 5 arranged in the opening 3 into the intake section 4 and, in the case shown here, expels them upwards again. Depending on the design of the extractor hood 1, the air continuation can be designed in such a way that the now filtered vapors are blown out of the kitchen through an appropriate air duct in an exhaust air mode. Depending on the design, however, a recirculation mode can also be provided, whereby the cleaned air or the cleaned vapors are 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.

In the embodiment shown here, the filter device 5 is designed as a grease filter 19. This grease filter 19 comprises a correspondingly designed filter material 16 through which the rising vapor is passed. The vapor is freed of grease components by means of 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 in addition to or in the grease filter device 5 or in 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 embodiment shown here, one of which, in the embodiment shown here, the left holding device 6, comprises a movable holding element 8, via which the filter device 5 can be quickly and easily removed from the opening 3 of the suction section 4. How this holding device 6 or the holding element 8 is designed is explained in more detail in the following figures.

In 2 is an enlarged view of the area of the opening 3 of the intake section 4 of an embodiment of an extractor hood 1 according to the invention in a purely schematic sectional view. Here, too, the opening 3 can be seen in which a filter device 5 is arranged, which is designed here as a grease filter 19. In the air flow direction inside the extractor hood and behind the filter device 5, the protective grille 18 can also be seen here.

Furthermore, 2 the left holding device 6 and the right holding device 7 can be seen. The two areas of the 2 are in the 3 and 4 shown enlarged to better illustrate the functioning of the holding devices 6, 7.

In the 3 and 4 It can be seen that the left holding device 6 comprises a holding element 8 which can be moved 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-hand side, the holding device 7 is designed differently in the embodiment shown. This holding device 7 does not include a movable holding element 8 here. Depending on the design, both sides or the opposing holding devices 6, 7 can also be designed the same.

In the embodiment shown, the right-hand holding device 7 comprises a stop 14, which enables optimal alignment of the filter device 5 or the grease filter 19 in the opening 3 of the intake section 4. The stop 14 here comprises a preloading device 13. The filter device 5 is aligned in the opening 3 by this spring-loaded stop 14 and, in addition, a certain amount of play is created in interaction with the stop 14 on the left-hand side, so that the filter device 5 is easier to insert and is 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 upwards and downwards.

As already described above, the holding device 6 is designed differently in the embodiment shown here than the holding device 7 on the right-hand side. The holding device 6 on the left-hand side comprises a holding element 8, which in 3 in the holding position 9. The holding element 8 can, however, be moved against the force of a preloading device 13 into a 4 shown removal position 10.

If the holding element 8 is in the holding position 9, the holding element offers the filter device 5 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 way for the filter device 5 downwards so that it can be removed.

In 4 It is shown that the preloading device 13 was pushed together by pressing or operating the holding element 8. When the holding element 8 is inserted or released, the holding element 8 moves back into the holding position 9.

Furthermore, in the 3 and 4 It can be seen that the holding element 8 has a bevel 15. In the embodiment shown, this ramp-like bevel 15 particularly facilitates the insertion of the filter device 5 into the opening 3.

Thus, it is possible, among other things, in the embodiment shown here, to first insert the filter device 5 into the holding device 7 on the right-hand side and then simply press it against the holding element 8 by means of the filter device 5.

Due to the bevel 15, the pressure of the filter device 5 against the holding element 8 causes the holding element 8 to be displaced from the holding position 9 into the removal position 10 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.

Because, according to the invention, the holding devices 6, 7 are assigned to the housing device 2 or are arranged on it or are integrated into it, it is possible to provide the largest possible filter surface on the filter device 5, since no space is lost for the provision of fastening mechanisms on the filter device 5.

List of reference symbols

1

Extractor hood

2

Housing equipment

3

opening

4

Intake section

5

Filter device

6

Holding device

7

Holding device

8th

Holding element

9

Holding position

10

Removal position

11

Edition

12

locking lug

13

Preloading device

14

attack

15

Bevel

16

Filter material

17

Fan device

18

Protective grille

19

Grease filter

20

U-profile

Claims (8)

Extractor hood (1) comprising at least one housing device (2) which delimits at least one opening (3) to at least one suction section (4) for rising vapors, wherein at least one removable filter device (5) is arranged in the opening (3), which is held in the opening (3) by at least two holding devices (6, 7) in the inserted state, wherein at least one holding device (6) comprises at least one holding element (8) which is displaceable at least in sections between at least one holding position (9) and at least one removal position (10), characterized in that the holding devices (6, 7) are arranged on the housing device (2) in the region of the opening (3) and the holding element (8) in the holding position (9) protrudes at least in sections further from the housing device (2) into the opening (3) than in the removal position (10), wherein the holding element (8) comprises at least one locking lug (12) or is designed as a locking lug (12) and/or the displaceable holding element (8) in the removal position (10) is at least partially accommodated in the housing device (2). Extractor hood (1) after Claim 1 , characterized in that the holding element (8) comprises at least one support (11) for the filter device (5). Extractor hood (1) according to one of the preceding claims, characterized in that the holding device (6) comprises at least one preloading device (13) and that the displaceable holding element (8) is preloaded in the holding position (9). Extractor hood (1) according to one of the preceding claims, characterized in that the holding element (8) is displaced rotationally and/or translationally from the holding position (9) into the removal position (10) and vice versa. Extractor hood (1) according to one of the preceding claims, characterized in that the displaceable holding element (8) is completely accommodated in the housing device (2) in the removal position (10). Extractor hood (1) according to one of the preceding claims, characterized in that at least one holding device (6, 7) comprises at least one stop (14). Extractor hood (1) according to one of the preceding claims, characterized in that the holding element (8) has at least one bevel (15). Extractor hood (1) according to one of the preceding claims, characterized in that the filter device (5) comprises filter material (16) through which air can flow over the entire longitudinal and transverse extent.