EP3789678A1 - Vapour extraction device with connection device and method for connecting a vapour extraction device to an air duct - Google Patents

Abstract

The present invention relates to an extractor device with a connection device (2) for connection to an air duct (4), the extractor device (1) being designed for installation in kitchen furniture (3) and comprising a device housing (10) which is at least in one side wall has an air outlet opening (100). The extractor device (1) is characterized in that the connection device (2) comprises at least one pull-out element (20) which is at least partially movable relative to the position of the air outlet opening (100). The invention also relates to a method for connecting such an extractor device (1) to an air duct (4) in an item of furniture (3).

Description

The present invention relates to an extractor device with a connection device and a method for connecting an extractor device to an air duct.

It is known to integrate an extractor device into a hob. With these devices, vapors and vapors that arise, for example, during cooking, are sucked in through a recess in or next to the hob. The vapors and vapors are cleaned by filters and released as cleaned air through an air outlet opening of the extractor device. Since the hob and thus also the extractor device is built into kitchen furniture, for example a kitchen base unit or a kitchen island, the air that emerges from the extractor device is released into the kitchen furniture. Since storage space for cooking utensils is provided in the kitchen furniture, the release of air in the kitchen furniture is disadvantageous. In the event that the extractor device is operated as an exhaust device, that is, the air is released into the environment, for example through a wall box, the air must also be conducted from the extractor device to the wall box. Even in a recirculation mode, in which the air is released into the room in which the extractor device is operated, the air is preferably passed out of the kitchen furniture to an air duct. The air duct for guiding the air into the surroundings or into the room is usually arranged behind the rear wall of the furniture or is partially formed by the rear wall of the kitchen furniture. Depending on the installation position of the hob in the kitchen furniture and the size of the kitchen furniture, the distance between the hob and thus the extractor device and the air duct usually provided behind the kitchen furniture varies. The connection of the extractor device to the air duct is difficult due to the installation position of the extractor device and the limited installation space behind the extractor device.

It is therefore the object of the present invention to create a solution by means of which an extractor device that is integrated in a hob can be reliably connected to an air duct in a simple manner.

According to a first aspect, the object is achieved by an extractor device with a connection device for connecting an air duct, the extractor device being designed for installation in kitchen furniture and comprising a device housing which has at least one air outlet opening in a side wall. The extractor device is characterized in that the connection device comprises at least one pull-out element which is at least partially movable relative to the position of the air outlet opening.

The extractor device is preferably an extractor device integrated into a hob. The extractor device has a device housing. The fan of the extractor hood device can be arranged in the device housing. The device housing has at least one air outlet opening. The air outlet opening is arranged in a side wall of the device housing. The air outlet opening is preferably arranged in the rear wall of the appliance housing, which, after the installation of the extractor device, faces the rear wall of the kitchen furniture in which the extractor device is introduced. The modules of the hob are preferably also accommodated in the device housing. The air outlet opening is used to let out or blow out purified air from the extractor device. The piece of furniture in which the extractor device is installed is preferably a kitchen base unit that is placed against a room wall, or a kitchen island, the rear wall of which is covered by a rear cover.

The air duct to which the extractor device is connected can be formed by the space between the rear wall of the kitchen furniture and the wall of the room on which it rests, or a rear cover. In these cases, the back wall of the kitchen unit forms part of the air duct. However, it is also within the scope of the invention that the air duct is a pipe that connects to the rear wall of the kitchen furniture. In this case too, however, at least the air inlet opening of the air duct is provided in the rear wall of the kitchen furniture.

According to the invention, the extractor device comprises a connection device. The connection device is used to connect the extractor device to the air duct and in particular to connect an air outlet opening of the extractor device to an air inlet opening of the air duct. According to the invention, the connection device comprises at least one pull-out element which is at least partially movable relative to the position of the air outlet opening.

An element is referred to as a pull-out element whose absolute length or relative length can be changed and in particular increased in relation to a specific position. Thus, an element that can be stretched to a greater length as well as an element that can be pulled out of the air outlet opening is referred to as a pull-out element. When it is pulled out of the air outlet opening, the length of the pull-out element, which protrudes beyond the air outlet opening, is increased.

The size and shape of the cross section of the pull-out element is adapted to the shape and size of the air outlet opening. Depending on the embodiment, the size of the pull-out element can correspond to the size of the air outlet opening or be smaller than the size of the pull-out element. The size of the pull-out element is preferably only smaller than the size of the air outlet opening by an amount that can be covered by a sealing element, in particular a sealing ring.

By providing a pull-out element that is at least partially movable relative to the position of the air outlet opening, the distance between the air outlet opening of the extractor device and the air duct, in particular the air inlet opening of the air duct, can be bridged flexibly. Since the distance can also be covered or bridged by the pull-out element, it is not necessary to subsequently introduce an intermediate element between the air outlet opening and the air duct after the installation of the extractor device. This facilitates the assembly of the extractor device and in particular the connection of the extractor device to the air duct.

According to a first embodiment of the pull-out element, this represents a push element. A push element is referred to as an element that can be moved with respect to the air outlet opening. In particular, the thrust element can be made from the air outlet opening. When it is pulled out of the air outlet opening, the length of the pull-out element, which protrudes beyond the air outlet opening, is increased. The actual length of the thrust element is not changed. In a pushed-in state, part of the pushing element lies in the interior of the extractor device. Even in the extended state, a small part of the push element continues to lie in the interior of the extractor device in order to prevent the push element from falling out. The length of the push element is therefore dimensioned such that it is greater than the distance that is to be bridged by the push element between the air outlet opening and the air duct, in particular the air inlet opening of the air duct. The shape and size of the cross section of the thrust element preferably corresponds to the shape and size of the air outlet opening and is slightly smaller. In particular, the outer dimensions of the thrust element in the area which is inserted into the air outlet opening are smaller than or equal to the inner dimensions of the air outlet opening.

Since the pull-out element is a push element, the extractor device can be connected to the air duct by simply pulling the push element out of the extractor device after installation, i.e. introducing the extractor device into the kitchen furniture. The free end of the thrust element facing away from the air outlet opening can then be attached to the air duct and in particular to the air inlet opening, for example by gluing. Even with the air outlet opening of the extractor device, which is usually difficult to reach for the user or fitter and which is usually located on the rear of the extractor device, the connection to the air duct can therefore be carried out in a simple manner.

According to a second embodiment of the pull-out element, this represents a flexible channel element. A flexible channel element is a pull-out element whose length is increased by the application of an axially directed tensile force. The flexible channel element preferably represents an elastic element. In particular, after being pulled apart, when the tensile force is removed, the flexible channel element returns to the contracted shape. The flexible channel element can therefore be, for example, a bellows made of plastic. These Embodiment of the flexible channel element has the advantage that the inner cross section of the flexible channel element does not decrease when it is pulled apart or stretched.

By using a flexible duct element, the distance between the air outlet opening and the air duct, in particular the air inlet opening, can be bridged in a simple manner.

According to one embodiment, the connection device has a fastening frame for fastening the pull-out element to the air duct. The fastening frame preferably has at least one connecting element for fastening the fastening frame to the air duct. In particular, the fastening frame can have at least one screw opening, a latching element and / or an adhesive surface, for example a double-sided adhesive tape.

The fastening frame can be connected to the pull-out element before the extractor device is connected to the air duct, or it can be provided as a separate component.

In the case in which the fastening frame is a separate component, it is preferably fastened to the air duct before the extractor device is introduced into the kitchen furniture. The pull-out element can then be moved by the extractor device in the direction of the fastening frame, that is to say shifted or stretched and connected to the fastening frame. In particular, the pull-out element can be connected to the fastening frame by means of a latching connection or an adhesive connection.

In the case in which the fastening frame is connected to the pull-out element before the extractor device is connected to the air duct, the pull-out element is preferably not connected to the air outlet opening before the extractor device is connected to the air duct. In this embodiment, the pull-out element is preferably a flexible duct element. In this embodiment too, the fastening frame can preferably be fastened to the air duct before the extractor device is introduced into the kitchen furniture. The Pull-out element, which is connected to the fastening frame, can then be moved by the fastening frame in the direction of the air outlet opening, that is to say can be stretched and connected to the air outlet opening. In particular, the pull-out element can be connected to the air outlet opening or to an adapter provided thereon by a latching connection or adhesive connection.

By providing a fastening frame, the connection between the fastening frame and the pull-out element can be designed variably without having to change the air duct and in particular the air inlet opening. In particular, connection surfaces, for example an adhesive surface in the form of a double-sided adhesive tape, or a latching element for latching with the pull-out element can be provided on the frame. This further simplifies the connection of the extractor device to the air duct.

The mounting frame can be a flat frame. According to a preferred embodiment, however, the fastening frame has a channel section which extends in the longitudinal direction of the pull-out element. By designing the fastening frame with a channel section, the distance between the air outlet opening and the air channel, which has to be bridged by the pull-out element, can be reduced. In this embodiment, the fastening frame can therefore also be referred to as an extension element. The reduction in the distance is particularly advantageous in the case of a pull-out element that is a push element. As described above, the pushing element is preferably received in the extractor device before being connected, that is to say it extends at least in some areas over the air outlet opening into the interior of the extractor device. In the interior of the extractor device, the fan housing of the fan of the extractor device, which is a spiral housing, is usually provided at the air outlet opening. The end of the fan housing which connects to the air outlet opening represents the end of the outlet channel of the fan housing. This changes from a straight piece to a curved piece in the direction of the fan wheel. This limits the length of the part of the pull-out element that can be introduced into the extractor device. The disadvantage of this limited space can be compensated for, that is to say the length of the pushing element can be compensated for by a fastening frame which serves as an extension element can be chosen to be smaller and yet the distance between the air outlet opening and the air duct can be bridged reliably.

Even with an embodiment of the pull-out element as a flexible channel element, the design of the fastening frame as an extension element can be advantageous. In this embodiment, the distance to be bridged by the flexible channel element is also reduced and therefore the tensile force which is required to stretch the channel element is reduced.

According to one embodiment, the fastening frame is welded or screwed to the pull-out element. In particular, the fastening frame is already welded or screwed to the pull-out element before the extractor device is connected. In this embodiment, the pull-out element is preferably a flexible channel element. By welding or screwing, a permanent and stable connection can be created between the fastening frame and the pull-out element. Damage or loosening of this connection when pulling out, in particular stretching the pull-out element, can thereby be prevented.

According to one embodiment, the connection device has an insert element. The insert element can also be referred to as a stopper. At least a part of the fastening frame can be inserted into the insert element perpendicular to the longitudinal extension of the pull-out element. The insert element preferably has connecting elements for fastening the insert element to the air duct. These connecting elements can be screw holes or a double-sided adhesive tape, for example. The insert element preferably has the shape of a half frame which has a dimension, in particular width, which is greater than the dimension, in particular width, of the fastening frame. As a result, the fastening frame can be pushed into the insert element in a simple manner. A recess or an undercut, in which part of the fastening frame can be received, is preferably formed on the insert element. The fastening frame is held on the slide-in element by being pushed into the slide-in element perpendicularly to the longitudinal extension of the slide-out element. The provision of an insert element has the advantage that the pull-out element can be attached to the extractor device before it is connected to the required length can be pulled out and can be attached to the air duct by pushing the mounting frame into the insert element. In this embodiment, the pull-out element is preferably a flexible channel element.

According to one embodiment, the connection device, in which the pull-out element is a flexible channel element, has an adapter for fastening the pull-out element to the air outlet opening. An adapter is a component that can be attached to the air outlet opening of the extractor device and has at least one connecting element for connecting the pull-out element to the adapter. The connecting element can be a screw hole or a latching element. By providing an adapter, it is not necessary to adapt the air outlet opening.

According to one embodiment, the adapter represents an adapter frame and the adapter frame and / or the pull-out element, in particular the flexible channel element, has at least one latching element for locking the adapter frame to the pull-out element. Since the connection between the adapter attached to the air outlet opening and the pull-out element has to be made after the extractor device has been introduced into the kitchen furniture, the connection by means of a snap connection is advantageous since no tools are required and the connection can be made easily.

As an alternative or in addition, the adapter can represent a clasp which can be locked to a part of the pull-out element and protrudes beyond the air outlet opening of the device housing. The clip can be screwed onto the air outlet opening. The clasp preferably has a U-shape and a latching element is provided at each of the ends of the clasp. With this embodiment of the adapter, the pull-out element can be inserted into the clasp, for example from below, with an optionally additionally provided adapter frame, and a connection to the air outlet opening can thus be established in a simple manner.

The pull-out element preferably has a sealing element. The sealing element can be a sealing ring or a double-sided adhesive sealing tape. In the embodiment in which the pull-out element is a push element, a sealing element in the form of a sealing ring can be provided at the end of the push element which protrudes into the extractor device. In the embodiment in which the pull-out element is a flexible channel element, the sealing element can be provided indirectly on the pull-out element, in particular on a fastening frame or adapter that is fastened to it or can be connected to it.

According to a further aspect, the invention relates to a method for connecting an extractor device according to the invention to an air duct in a piece of furniture. The method is characterized in that, for connection to the air duct, the pull-out element is at least partially moved relative to the air outlet opening during assembly.

Advantages and features that are and have been described with respect to the extractor device apply - if applicable - correspondingly to the method according to the invention and vice versa.

Moving the pull-out element can be a shifting of the pull-out element or a stretching of the pull-out element, in the latter case the pull-out element is only partially moved. In particular, one end of the pull-out element can remain in the original position relative to the air outlet opening.

According to a preferred embodiment, the air duct is located behind a rear wall of the piece of furniture in which the extractor device is installed. Here, the air duct can be formed, for example, by the distance between the rear wall and a room wall. An opening is made in the rear wall, which forms the air inlet opening of the air duct. The extractor device is preferably introduced into a recess in the top, in particular the worktop of the kitchen furniture. In particular, the device housing of the extractor device is introduced into the recess. The device housing is preferably aligned such that the air outlet opening is on the rear of the device housing.

Directional information, such as front, back, top and bottom, unless otherwise stated, refer to an extractor device and its parts in the state they are in the piece of furniture.

According to one embodiment, the pull-out element is introduced into the air outlet opening and is partially pulled out of the air outlet opening in order to connect the extractor device to the air duct. According to one embodiment, the pull-out element is pulled out until the free end of the pull-out element, i.e. the end of the pull-out element facing away from the extractor device, rests against the outside of the air duct in the area of the air inlet opening. A double-sided adhesive tape, preferably double-sided adhesive sealing tape, is preferably provided at the free end of the pull-out element. This fixes the free end to the air duct and thus connects the extractor device to the air duct. In this embodiment, the pull-out element is preferably a push element.

According to one embodiment, the connection device comprises a fastening frame and the fastening frame is fastened to the air duct before the pull-out element is pulled out. The fastening frame is particularly preferably fastened into the kitchen furniture before the extractor device is introduced. In this state, the air duct is not yet blocked by the extractor device, so that the fastening frame can be fastened to the air duct, for example by screwing it on. Then the extractor device is introduced into the kitchen furniture and the pull-out element is pulled out until the free end of the pull-out element rests on the fastening frame. The connection between the pull-out element and the fastening frame can be produced by an adhesive connection, for example by means of a double-sided adhesive tape or by means of a latching connection.

According to one embodiment, the pull-out element is attached to the air duct before the extractor device is positioned, in particular introduced into a recess in the top of the kitchen furniture. In this embodiment, the pull-out element is preferably a flexible channel element. After the extractor device has been introduced, the pull-out element can be stretched and attached to the Air outlet opening of the extractor device are attached, for example, are locked.

According to one embodiment, an adapter is attached to the air outlet opening and then the pull-out element is pulled in the direction from the air duct to the air outlet opening and connected to the adapter. The adapter is preferably attached to the air outlet opening before the extractor device is introduced into the kitchen furniture.

According to one embodiment, the pull-out element, which preferably represents a flexible channel element, is connected to a fastening frame. In this embodiment, an insert element is fastened to the air duct and the fastening frame for fastening the extension element to the air duct is inserted into the insert element perpendicular to the longitudinal direction of the extension element. After insertion, the fastening frame can be screwed to the air duct, for example.

Figur 1:

eine schematische Schnittansicht einer Ausführungsform der erfindungsgemäßen Dunstabzugsvorrichtung im eingebauten und angeschlossenen Zustand;

Figur 2:

eine schematische Schnittansicht der Ausführungsform nach Figur 1 in einem anderen Küchenmöbel;

Figur 3:

eine schematische Schnittansicht einer weiteren Ausführungsform der erfindungsgemäßen Dunstabzugsvorrichtung im eingebauten und angeschlossenen Zustand;

Figur 4:

eine schematische Schnittansicht einer weiteren Ausführungsform der erfindungsgemäßen Dunstabzugsvorrichtung im eingebauten und angeschlossenen Zustand;

Figur 5:

eine schematische Schnittansicht einer weiteren Ausführungsform der erfindungsgemäßen Dunstabzugsvorrichtung im eingebauten und angeschlossenen Zustand;

Figur 6:

eine schematische Perspektivansicht einer ersten Ausführungsform des Auszugselementes der Anschlussvorrichtung;

Figur 7:

eine schematische Perspektivansicht einer Ausführungsform eines Befestigungsrahmens der Anschlussvorrichtung;

Figur 8:

eine schematische Perspektivansicht einer zweite Ausführungsform des Auszugselementes der Anschlussvorrichtung;

Figur 9:

eine schematische Perspektivansicht einer weiteren Ausführungsform der Anschlussvorrichtung nach Figur 8;

Figur 10:

eine schematische Perspektivansicht einer weiteren Ausführungsform der Anschlussvorrichtung in einem ersten Zustand;

Figur 11:

eine schematische Perspektivansicht der Ausführungsform der Anschlussvorrichtung nach Figur 10 in einem zweiten Zustand; und

Figur 12:

eine schematische Schnittansicht einer Dunstabzugsvorrichtung im eingebrachten Zustand mit Bemaßungen.

The invention is explained again below with reference to the accompanying drawings. Show it:

Figure 1:

a schematic sectional view of an embodiment of the extractor device according to the invention in the installed and connected state;

Figure 2:

a schematic sectional view of the embodiment according to Figure 1 in another kitchen furniture;

Figure 3:

a schematic sectional view of a further embodiment of the extractor device according to the invention in the installed and connected state;

Figure 4:

a schematic sectional view of a further embodiment of the extractor device according to the invention in the installed and connected state;

Figure 5:

a schematic sectional view of a further embodiment of the extractor device according to the invention in the installed and connected state;

Figure 6:

a schematic perspective view of a first embodiment of the pull-out element of the connection device;

Figure 7:

a schematic perspective view of an embodiment of a fastening frame of the connection device;

Figure 8:

a schematic perspective view of a second embodiment of the pull-out element of the connection device;

Figure 9:

a schematic perspective view of a further embodiment of the connecting device according to FIG Figure 8 ;

Figure 10:

a schematic perspective view of a further embodiment of the connection device in a first state;

Figure 11:

a schematic perspective view of the embodiment of the connecting device according to FIG Figure 10 in a second state; and

Figure 12:

a schematic sectional view of an extractor device in the inserted state with dimensions.

In Figure 1 a schematic sectional view of an embodiment of the extractor device 1 according to the invention is shown. The extractor device 1 comprises a device housing 10. In the device housing 10 there is a fan 11 (see FIG. Figure 12 ) arranged, through which air can be sucked into the device housing 10 from above. How out Figure 12 results, a cooking module 5, which can in particular be an induction module, is additionally received in the device housing 10. A suction opening (not shown) is provided in the cooking module 5, via which air is sucked in from above through the cooking module 5 into the fan housing 110 of the fan 11.

How out Figure 1 results, the extractor device 1 is introduced into the worktop 34 of kitchen furniture 3, which represents a kitchen cabinet. The worktop 34 forms the top of the kitchen furniture 3. Below the extractor device 1, 3 drawers 31 are shown in the kitchen furniture. The kitchen furniture 3 has a floor 32. In the embodiment shown, the kitchen furniture 3 has feet 33 which are arranged under the floor 32. The back of the kitchen furniture 3 is on a room wall R. The rear wall 30 of the kitchen furniture 3 is offset to the front. This creates an air duct 4 between the rear wall 30 of the kitchen furniture 3 and the room wall R. Although not shown, an opening can be provided in the room wall R through which air can escape from the air duct 4. Alternatively, an opening can be made in the base 32 in the area of the air duct 4, through which the air can exit from the air duct.

An air outlet opening 100 is made in the rear of the device housing 10, that is to say on the side facing the air duct 4 (see FIG. Figure 12 ). The air outlet port 100 is erected with the outlet of the fan housing 110. The outlet of the fan housing 110 is preferably located in the air outlet opening 100.

Depending on the supplier and the model of the kitchen furniture, the rear wall R can be near the outlet of the appliance or far from it. In order to be able to do justice to all configurations, a connection device is provided according to the invention. In the in Figure 1 The embodiment shown, the pull-out element 20 is formed by a push element 200. An embodiment of a push element 200, which is a first embodiment of the pull-out element 20, is shown in FIG Figure 6 shown. The push element 200 has a channel section 2000, from which a flange 2001 extends outward at one end. Fastening elements 6 in the form of screw holes are provided on the flange 2001. At the free end of the pull-out element 20, a sealing ring 7 is provided on the channel section 2000. The sealing ring 7 is arranged in such a way that it extends outwardly over the outer circumference of the channel section 2000.

At the in Figure 1 The embodiment shown is the pushing element 200 into the air outlet opening 100 (see FIG. Figure 12 ) brought in. In particular, part of the Channel section 2000 arranged in the interior of the device housing 10 of the extractor device 1. A part of the duct section 2000 protrudes to the rear via the air outlet opening 100. The thrust element 200 rests with the flange 2001 on the rear wall 30 and thus on the air duct 4. In particular, the flange 2001 surrounds the air inlet opening 300. The push element 200 is fastened to the air duct 4 via a double-sided adhesive tape between the flange 2001 and the air duct 4 and in particular the rear wall 30.

In the Figure 1 The embodiment shown is preferably used in cases in which the distance between the air outlet opening 100 and the air duct 4 is small. In particular, this embodiment can be used for a distance of 0-30 mm between the air outlet opening and the air duct 4 or the rear wall 30 of the cooking furniture 3.

In this embodiment, the connection device 2 comprises only the pull-out element 20, in particular in the form of a push element 200. The push element 200 is preferably made of plastic and can have a plug-plug connection or a plug-socket connection.

The pushing element 200 is placed in the air outlet opening 100 before the extractor device 1 is installed in the furniture 3. In order to reach the rear wall 30, which can also be referred to as the rear panel, the user must move the pushing element 200 towards the rear panel 30 and fix it with a double-sided adhesive seal (not shown), for example. The seal is attached in advance to the side of the thrust element 200, in particular the flange 2001, which faces away from the air outlet opening 100. For this purpose, the user only has to remove the protection on the adhesive seal and fix it to the rear wall 30.

In Figure 12 the distances to be taken into account when choosing the suitable connection device 2 are shown. In particular, the distance A between the air outlet opening 100 and the rear wall 30 and thus the air duct 4 must be taken into account, since this distance must be bridged by the connection device 2. In particular in the case of the first embodiment of the pull-out element 20, which is a push element 200, the distance B is important. Distance B is the distance between the air outlet opening 100 and the point at which the duct in the fan housing 110 changes from a straight configuration to a curved configuration. This distance B thus determines the maximum length of the thrust element 200 that can be inserted into the air outlet opening 100. In particular, the distance B determines the length of the channel section 2000 of the thrust element 200.

In Figure 2 is the embodiment of the connection device 2 according to Figure 1 Shown in another kitchen furniture. In this embodiment, the distance A is greater than in Figure 1 . In this embodiment, the thrust element 200 is therefore pulled further out of the air outlet opening 100.

If the distance A is even greater, for example in a range of 30-60 mm, the embodiment of the connection device 2 can be adapted to Figure 3 come into use. In this embodiment, the connection device 2 consists of the pushing element 200 and a fastening frame 21. In the embodiment shown, this represents an extension element 210. The extension element 210 is shown in FIG Figure 7 shown. The extension element 210 has a channel section 2100 from which a flange 2101 extends outward at one end. At the transition from the duct section 2100 to the flange 2101, the extension element 210 preferably has a curved surface in the form of a curved screen, as a result of which the air flow through the extension element 210 into the air duct 4 is calmed. Fastening elements 6 in the form of screw holes are provided on the flange 2101. At the free end of the extension element 210, a connecting element 6 in the form of a double-sided adhesive tape is provided on the channel section 2000. A sealing ring 7 is arranged on the inner circumference of the channel section 2100.

The extension element 210 is preferably made of plastic and has a plug-socket connection. The connecting element 6, in particular the double-sided adhesive tape, is fastened in advance to the free end of the extension element 210. In addition, a double-sided adhesive tape can also be provided on the side of the flange 2101 which faces away from the channel section 2100. The adhesive tapes can preferably also represent double-sided sealing tapes.

Before the extractor device 1 is installed in the kitchen furniture 3, the extension element 210 is fixed to the rear wall 30 with the double-sided adhesive seal (not shown). As soon as the extension element 210 is fixed, the user can install the extractor device 1 and in particular the device housing 10 with the pushing element 200 in the air outlet opening 100. In order to connect the pushing element 200 and the extension element 210 to one another, the double-sided adhesive tape or the double-sided adhesive seal which is provided on either the pushing element 200 or the extension element 210 is used.

In Figure 3 the distance A corresponds to the length of the extension element 210 and the thickness of the flange 2001 of the push element 200. This means that the channel section 2000 of the push element 200 is accommodated in the interior of the extractor device 1.

When arranging according to Figure 4 the distance A is greater than the length of the extension element 210 and the thickness of the flange 2001 of the pushing element 200. Therefore, in the arrangement according to Figure 4 the thrust element 200 is pulled out of the air outlet opening 100 to such an extent that a part of the duct section 2000 is arranged outside the air outlet opening 100.

In the arrangement according to Figure 5 the distance A is greater than in the arrangement according to Figure 4 . For example, the distance A is greater than 60mm. In this arrangement, the connection device 2 has instead of a push element according to FIG Figure 6 a channel element 202. The channel element 202 may be a straight channel element that has no flanges at the ends.

With this arrangement, the user can cut off the duct element 202 at a good distance before the extractor device 1 is positioned in the kitchen furniture 3. In the next step, the user guides the duct element 202 into the air outlet opening 100 until it reaches the transition between the straight and curved part of the duct of the fan housing 110. The user can then fix the extension element 210 on the rear wall 30. The final step is to insert the straight channel element 202 into the extension element 210. Preferably, on the extension element 210, in particular on the inside of the Extension element 210 a sealing element (not visible) is provided. A sealing element (not visible) is also preferably provided on the outside of the channel element 202. This will ensure airtightness.

In Figure 8 a second embodiment of the connecting device 2 is shown. In this embodiment, the pull-out element 20 is designed as a flexible channel element 201. In the embodiment shown, the flexible channel element 201 is fastened on one side to a fastening frame 21. A latching frame 2010 is attached to the flexible channel element 201 on the opposite side. Latching elements 6 are arranged on the latching frame 2010 and can latch with latching elements 6 on an adapter 23.

With the embodiment of the connection device 2 in which the pull-out element 20 is a flexible channel element 201, for example, distances A in the range from 15 to 50 mm can be covered.

The fastening frame 21 represents a rigid air outlet element which is preferably made of plastic. The fastening frame 21 expands from the flexible channel element 201 to the flange 2101. At the transition from the duct section 2100 to the flange 2101, the fastening frame 21 preferably has a curved surface in the form of a curved screen, as a result of which the air flow through the fastening frame 21 into the air duct 4 is calmed. The adapter 23, which forms a rigid interface to the extractor device 1, is also preferably made of plastic. The locking frame 2010 can be made of plastic or metal. The fastening frame 21 can be welded to the flexible channel element 201, that is to say melted on, or screwed onto it. The latching frame 2010 can also be screwed to the flexible channel element 201 or welded to it.

The adapter 23 is attached directly to the extractor device 1, in particular the device housing 10. In particular, the adapter 23 can be screwed onto the air outlet opening 100. For this purpose, the adapter 23 has a size which corresponds to the size of the air outlet opening 100. The adapter 23 can, for example, be partially inserted into the air outlet opening 100 and screwed to it.

When the extractor device 1 is connected to the air duct 4, the fastening frame 21 with the flexible duct element 201 is first fastened to the rear wall 30. The fastening frame 21 can be screwed or glued to the rear wall 30. The fastening frame 21 can be fastened to the front of the rear wall 30 or to the rear of the rear wall 30. The latter variant assumes that the rear wall 30 is accessible to the user from behind, for example by moving the kitchen furniture 3 away from the room wall R. In this case, the flexible duct element 201 can be pushed through the air inlet opening 300 from behind until the fastening frame 21 is attached the back of the rear wall. In this position, the fastening frame 21 can be screwed to the rear wall 30 or glued to it. For this purpose, a double-sided adhesive sealing ring 7 can be provided on the side of the flange 2101 of the fastening frame 21 facing the flexible channel element 201.

The adapter 23 is fastened to the kitchen furniture 3 before the appliance housing 10 is introduced. In order to connect the air duct 4 to the extractor device 1, the user must connect the flexible duct element 201 to the adapter 23. For this purpose, connecting elements 6, in particular latching elements 60, which can be brought into engagement with one another, are preferably provided on the latching frame 2010 and on the adapter 23. To ensure the airtightness between the extractor device 1 and the air duct 4, sealing elements, in particular sealing rings 7, are provided on the fastening frame 21 on the rear or front side of the flange 2101 and on the adapter 23 or the latching frame 2010.

In Figure 9 a further embodiment of the connection device 2 is shown. In this embodiment, the connection device comprises 2 in addition to the elements of the embodiment according to Figure 8 an insert element 22. The other parts of the connection device 2 according to Figure 9 correspond to those of Figure 8 and are therefore not explained again. The insert element 22 is preferably made of plastic. In the embodiment shown, the insert element 22 has the shape of a half-frame which is open at the bottom.

In the embodiment according to Figure 9 First, the insert element 22, which can also be referred to as a stop or stopper, is screwed or glued to the rear wall 30. The aim of the insert element 22 is to bring the fastening frame 21 and thus the flexible channel element 201 into position and to stop the translation in the longitudinal direction of the flexible channel element 201. The device housing 10 of the extractor device 1 can now be introduced into the kitchen furniture 3. In order to connect the fastening frame 21 and thus the flexible duct element 201 to the rear wall 30, the user must insert the fastening frame 21 behind the insert element 22, push it from below behind the half-frame in the embodiment shown, and then screw / glue it to the rear wall. The flexible duct element 201 can then be fastened to the air outlet opening 100 via the latching frame 2010 and the adapter 23, in particular adapter frame 230, and thus connected to the extractor device 1.

In the Figures 10 and 11 a further embodiment of the connection device 2 is shown. This embodiment differs from that in Figure 8 embodiment shown by the different design of the locking frame 2010 and the adapter 23. The other components are the same and are therefore not described again.

At the in Figures 10 and 11 In the embodiment shown, the adapter 23 represents an adapter clasp 231. This has the shape of a half-frame and is open at the bottom. This adapter clasp has a width which is greater than the width of the latching frame 2010, which is provided at the free end of the flexible channel element 201. The latching frame 2010 has a sealing element 7 in the upper area. In the lower area, the latching frame 2010 represents a closed profile. A latching element 60 is provided at the transition between the lower and upper area of the latching frame 2010. A latching element 60 is also provided at each of the downwardly directed free ends of the adapter clasp 231. After the adapter clip 231 is attached to the air outlet opening 100 of the extractor device, it preferably protrudes beyond the air outlet opening 100 by a certain part of its width. Thus, after the fastening frame 21 has been attached to the rear wall 30, the locking frame 2010 can be pushed from bottom to top into the protrusion of the adapter clip 231 until the locking elements 60 of the adapter clip 231 and the locking frame 2010 lock together.

The invention has essentially been described with reference to an extractor hood device which is integrated with a cooking module. However, it is also within the scope of the invention that the extractor device is integrated in the kitchen furniture separately from the cooking module. In this case, too, the extractor device sucks cooking vapors and fat downwards and can also be referred to as a downdraft extractor.

The present invention has a number of advantages. On the one hand, the connection device can prevent air from being blown out of the extractor device into the kitchen furniture. Furthermore, a reliable connection of the extractor hood device to the air duct is made possible for different types, in particular different dimensions, of kitchen furniture. In addition, the invention allows the extractor device to be connected quickly and easily to an air duct. Finally, with the connection device, good airtightness can be ensured in a simple manner, in particular at the transitions from the device housing to the connection device and from the connection device to the air duct.

List of reference symbols

1

Extractor device

10

Device housing

100

Air outlet opening

11

fan

110

Fan housing

2

Connection device

20th

Pull-out element

200

Thrust element

2000

Canal section

2001

flange

201

flexible channel

2010

Locking frame

202

Channel element

21

Mounting frame

210

Extension element

2100

Canal section

2101

flange

22nd

Slide-in element

23

adapter

230

Adapter frame

231

Adapter clasp

3

kitchen furniture

30th

Back wall

300

Air inlet opening

31

drawer

32

ground

33

foot

34

Countertop

4th

Air duct

5

Cooking module

6th

Connecting element

60

Locking element

7th

Sealing element

R.

Room wall

Claims (18)

Extractor device with a connection device (2) for connection to an air duct (4), the extractor device (1) being designed for installation in kitchen furniture (3) and comprising a device housing (10) which has at least one air outlet opening (100) in a side wall. characterized in that the connection device (2) comprises at least one pull-out element (20) which is at least partially movable relative to the position of the air outlet opening (100). Fume extractor device according to claim 1, characterized in that the pull-out element (20) is a push element (200). Fume extractor device according to claim 1, characterized in that the pull-out element (20) is a flexible duct element (201). Fume extractor device according to one of Claims 1 to 3, characterized in that the connection device (2) has a fastening frame (21) for fastening the pull-out element (20) to the air duct (4). Fume extractor device according to Claim 4, characterized in that the fastening frame (21) comprises a channel section (2100) which extends in the longitudinal direction of the pull-out element (20). Fume extractor device according to one of Claims 4 or 5, characterized in that the fastening frame (21) is welded or screwed to the pull-out element (20). Extractor device according to one of Claims 4 to 6, characterized in that the connection device (2) has an insert element (22) into which at least part of the fastening frame (21) can be inserted perpendicular to the longitudinal extension of the pull-out element (2). Extractor device according to one of Claims 3 to 7, characterized in that the connection device (2) has an adapter (23) for fastening the pull-out element (20) to the air outlet opening (100). Extractor device according to claim 8, characterized in that the adapter (23) is an adapter frame (230) and the adapter frame (230) and / or the pull-out element (20) has at least one locking element (6) for locking the adapter frame (23) to the pull-out element (20). Fume extractor device according to claim 8, characterized in that the adapter (23) is an adapter clip (23) which can be latched to part of the pull-out element (20) and protrudes beyond the air outlet opening (100) of the device housing (10). Fume extractor device according to one of Claims 1 to 10, characterized in that the pull-out element (20) has a sealing element (7). Method for connecting an extractor device according to one of claims 1 to 11 to an air duct (4) in a piece of furniture (3), characterized in that, for connecting to the air duct (4), the pull-out element (20) during assembly is at least partially relative to the Air outlet opening (100) is moved. Method according to Claim 12, characterized in that the pull-out element (20) is introduced into the air outlet opening (100) and is partially pulled out of the air outlet opening (100) for connection. Method according to Claim 13, characterized in that the connection device (2) comprises a fastening frame (21) and the fastening frame (21) is fastened to the air duct (4) before the pull-out element (20) is pulled out. Method according to one of Claims 12 to 14, characterized in that the pull-out element (20) is attached to the air duct (4) before the extractor device (1) is positioned. Method according to claim 15, characterized in that an adapter (23) is attached to the air outlet opening (100) and then the pull-out element (20) is pulled in the direction from the air duct (4) to the air outlet opening (100) and with the adapter (23 ) is connected. Method according to Claim 16, characterized in that the pull-out element (20) is connected to a fastening frame (21), an insert element (22) is fastened to the air duct (4) and the fastening frame (21) is connected to the fastening frame (21) the air duct (4) is pushed into the insert element (22) perpendicular to the longitudinal direction of the pull-out element (20). Method according to one of Claims 12 to 17, characterized in that the air duct (4) lies behind a rear wall (30) of the piece of furniture (3) in which the extractor device (1) is installed.

Images