EP2634493B1 - Door for a domestic appliance for preparing food with a support element - Google Patents

Description

The invention relates to a door for a household appliance for preparing food with a carrier part.

In the case of doors which are provided for closing a cooking chamber of a household appliance for preparing food, it is known that these have a plurality of plate-like door panes. For this purpose, an outer door pane and an inner door pane formed parallel to and spaced apart from it are usually provided. The inner door pane is positioned closer to the cooking space when the door is closed. In addition, it is known that doors are also designed which, in addition to these two door panes mentioned, have at least one further intermediate door pane, which is positioned parallel to and at a distance from the inner door pane of the intermediate door pane. Such a structure of several door panes is intended on the one hand to prevent the thermal energy generated in the cooking space from escaping to the outside, on the other hand to ensure that the outer door pane does not heat up undesirably, so that it is still possible for the outer door pane to be touched without any problems .

With doors constructed in this way, it is also known that these panes are held by door profiles which run essentially parallel and vertically when the door is closed, the door profiles being attached to the inside of the door outer pane.

Doors constructed in this way can also be dismantled into their individual parts for cleaning purposes or other assembly work. In order to enable such dismantling, it is provided in currently known doors that the door inner pane is arranged with a non-positive locking mechanism. This is made up of two bolts glued to the inner pane, which are pressed into two clips that are anchored in a cross strut. The locking forces are with subject to very high tolerances, as the bolt-clip system depends on several parameters, for example the surfaces, the geometry and possible contamination. Dismantling is therefore user-unfriendly in specific situations and may require a lot of effort.

the EP 1 030 116 A2 discloses an oven with an appliance door with an inner pane and an outer pane. Extruded profiles running in parallel are fixed on the outer pane. The inner pane has an upper and a lower cross profile. The upper transverse profile can be pivoted and the lower transverse profile is detachably arranged on the extruded profiles.

the DE 101 63 150 A1 discloses an appliance door, preferably for an oven, in which an inner pane is connected to upper and lower retaining strips. The upper retaining bar here forms a bearing around which the inner pane can be rotated. The lower retaining bar is releasably held in one position by means of a bolt with a spring element.

The object of the present invention is to create a door for a household appliance for preparing food, which allows a more user-friendly dismantling process.

This object is achieved by a door according to the independent claim. A door according to the invention for a household appliance for preparing food comprises a locking device which is designed to receive a hook arranged on the door pane in a locking manner. Such a configuration on the one hand improves the holding of the door pane and, by means of the specifically designed support part with a locking device, the dismantling of the door and, in particular, the removal of the door pane can be carried out in a more user-friendly and, in particular, also more easily.

The locking device is integrated into the carrier part. Such a configuration, with which a one-piece design is realized, significantly reduces the number of components. In addition, position tolerances between the components can be avoided. This also enables the components to be positioned reliably over the long term.

The carrier part is also made of plastic. In the case of the integrated design of the locking device in the carrier part, such a material design made of plastic is advantageous since the entire carrier part can be implemented as an injection-molded part, for example. This specific material design also results in a very lightweight component, which in the case of complex doors with a plurality of door panes leads to a weight reduction of the door.

It is preferably provided that the locking device is designed in such a way that a form-fitting reception of the hook and thus a form-fitting locking is achieved. Positive locking results in a significantly improved feel with regard to the perceptibility of the user when locking and unlocking. The dismantling and assembly of the components of the door can thus be carried out more safely and easier to understand with regard to the final state actually achieved during dismantling. This has significant advantages over a non-positive locking mechanism.

It is provided that the locking device has an actuating element which is arranged in one piece on a base carrier of the carrier part and can be moved relative to the base carrier. This is a particularly noteworthy embodiment, since the actual locking mechanism is not actuated directly, but indirectly via an actuating element. On the one hand, a significantly improved accessibility for a user can then be achieved and actuation can be carried out more easily and in a more targeted manner. Such an indirect actuation via an actuation element also avoids damage due to excessive force influence on the lock as such. In addition, such an actuating element and an associated indirect actuation of the lock does not require a user to directly touch the lock, so that a possible entrapment or the like of a user in the lock is prevented.

It is preferably provided that the actuating element is connected to a locking bracket which is deformable as a function of the movement of the actuating element. In particular, the actuating element is integrally connected to the locking bracket. Such a mechanism for locking and unlocking the door pane on the carrier part is particularly to be emphasized with regard to the number of components and the functional mechanism. By virtue of the fact that there is also a locking bracket of this type in addition to the actuating element, which is provided for locking the hook of the door pane and which cannot be actuated directly but via the actuating element, the advantages mentioned above can be further enhanced.

In particular, it is provided that the locking bracket is positioned in such a way that it is not accessible from the outside and cannot be actuated directly by a user, but rather the actuating element is positioned in front of it and only this can be touched. Since the actuating element is coupled to the locking bracket, the movement of the actuating element is transmitted to the locking bracket and the locked state with the hook is thereby released.

Because the design is provided as a locking bracket, due to the shape and functionality there is also a certain elasticity which enables a very continuous and jolt-free operation.

Unwanted high force peaks that would occur when locking or unlocking this element, namely the locking bracket, can thus be avoided. In addition, the shape as a bracket also generates a certain pretensioning force in the locked state, so that an undesired release of the locked state can be prevented.

It is particularly advantageous that the locking bracket is bent in a U-shape. The advantages mentioned above are thus once again confirmed.

It is preferably provided that the operating element and the locking bracket are coupled in the form of a cracking frog principle. A certain maximum point of force application is provided on the actuation path, so that when this is exceeded there is also a haptic feedback about the correspondingly released or locked state of the locking device. A particularly reliable and securely perceptible possibility of assembly and disassembly is thereby achieved.

It is preferably provided that the operating element or the actuating element and the locking bracket are connected to the base support at two different points. As a result, the coupled mechanical operating principle between these two components can be implemented in a particularly noteworthy manner. In particular, it is provided that the two points at which the actuating element on the one hand and the locking bracket on the other hand are connected to the base support are arranged in a straight line that corresponds to the Actuation travel of the actuator corresponds. On the one hand, the force can thus be transmitted in a correspondingly preferred manner without undesired force peaks occurring; on the other hand, the linear actuation travel can also be carried out in a particularly precise and continuous manner and transmitted via the actuation element. The particularly smooth and continuous release of the locking via the locking bracket is thereby achieved.

It is preferably provided that the locking bracket has a bridge-shaped web, at the front end of which an engagement element is arranged which is wider than the web which, in the locked state, is designed to engage the hook of the door pane. Such a specific shape of the locking bracket favors the smooth deformability when the actuating element is actuated and, on the other hand, also ensures a solid and mechanically stable locking state with the hook due to the correspondingly arranged and shaped engagement element. In addition, the bridge-shaped configuration of such a web also realizes an embodiment that is as material-saving as possible.

It is preferably provided that the actuating element is plate-shaped and is pivotably arranged on a first edge on the base support, and two connecting webs are formed on an opposite second edge, which are connected to the locking bracket, in particular an engagement element of the locking bracket. The actuating element can thus be implemented in a very flat and space-saving manner and, thanks to its size, enables reliable actuation by a user with a finger or the like. As a result of the pivotable arrangement of this plate-shaped actuating element, a very precise transmission of movement to the locking bracket can also take place. Since corresponding connecting webs are formed on the second edge at opposite ends of the actuating element, a particularly uniform transmission of force and thus also movement control of the locking bracket is made possible without it being undesirably overturned or tilted. Undesired twisting of the locking bracket is also prevented as a result, so that locking and unlocking can be achieved particularly smoothly without locking or jamming.

It is preferably provided that the base carrier of the carrier part has a centering element on at least one side adjacent to the actuating element, with which a position centering of the hook can be generated. In particular, a position centering can be carried out before the actual locking, so that the above-mentioned advantages with regard to avoiding jamming or expansion are further enhanced.

In addition, it is preferably provided that the centering element is designed as a web which extends laterally between the actuating element and the locking bracket. As a result, on the one hand, a certain stiffening strut is generated on the base support, which just allows movement of the actuating element and the locking bracket, but on the other hand, twisting of the base support is prevented. This is particularly favored by the aforementioned specific exposed position of a centering element.

It is preferably provided that the centering element has a Y-shaped receptacle for the hook. A funnel-like inlet is thus initially generated, so that the hook does not initially have to be introduced with very high positional accuracy, but rather self-positioning can also be achieved, as it were, through the Y-shaped introduction. If the hook has then entered the lower area of the Y-shape, a correspondingly precise position centering is guaranteed. This also achieves a very exact position for the subsequent locking process, so that the locked state is also achieved here in a very targeted and precise manner, without preventing the engagement element of the locking bracket from moving or possibly not being able to snap into the hook.

It is preferably provided that the base support has a movable ejector element, which is designed as a function of the actuation of the actuating element and the release of the lock to lift the door pane from the mounted end position. In particular, the ejector element is designed to automatically lift this door pane when the locked state is released.

The ejector element is preferably designed as a cylindrical socket, which thus has a mechanically stable and highly resilient shape and, on the other hand, rests over a large area on the inside of the door pane and thus the force that occurs when it is lifted is distributed over the largest possible area, namely the top of the cylinder. Here, too, undesired force peaks on the door pane can be avoided, which is particularly advantageous in the case of glass panes or glass-like materials in order to be able to protect them from undesired wear, such as scratching or the like.

It is particularly advantageous if the ejector element is positioned pretensioned by a spring. This preload is designed in particular such that in the locked state the ejector element is pressed into its end position against the spring force by the adjacent door pane and the spring is thus preloaded. If the locked state of the locking device is then released and the door pane can move backwards or upwards, this is done automatically via the spring-preloaded state of the ejector element, in that the spring moves into the unstressed state, thus pushing the ejector element outwards and this then the door glass lifts.

The base support preferably has an outer wall which is curved in some areas and is drawn downwards towards the front and through which an air guiding wall for targeted air guidance is formed. This is particularly advantageous if two household appliances are positioned directly one above the other in the vertical direction, for example two ovens are arranged in an add-on wall. Such a shaping and generation of an air duct ensures that hot air exiting from the upper oven is not directed downwards to the handle of the door of the lower oven, but rather, due to this specific shape, no turbulent flows occur which are directed towards the handle of the the lower oven. Rather, through this air baffle and the resulting targeted air flow, the hot air of the upper oven is directed horizontally forwards or slightly upwards on this underside or the lower area. In cross section, the outer wall has a shape which is then slightly bent upwards again on the front side, so that a shape similar to one half of a Venturi nozzle is formed.

It can be provided that the carrier part is designed to receive only one hook which is arranged, in particular glued, on an inside of the door pane. In order to enable a symmetrical configuration and fastening on both sides, two such hooks, in particular structurally identical hooks, are formed on opposite sides, in particular in the lower region of the inner door pane. In this context, it can be provided that a separate carrier part is formed and arranged for each such hook.

It is preferably provided that the carrier part is designed as an elongated strut in which two separate locking devices are already integrated, one being designed to receive one of the hooks in each case.

The carrier part is preferably screwed into door profiles arranged next to it by means of two screws and fastened thereto. As already explained above, the door profiles are elongated components which are oriented vertically when the door is closed and are provided to accommodate the inner door pane and an at least one intermediate door pane that may be present. The door profiles are arranged, in particular glued, on the inside of the outer door pane. Running transversely to this, the carrier part, which is designed in particular as a transverse strut and extends over the entire area between the door profiles, is then arranged in the lower region of the outer door pane.

So that the lock is screwed in the middle position of these adjoining parts, namely the door profiles, such a locking device with an actuating element as an elastic element is provided on the respective opposite sides. This means that the lock centers itself automatically before screwing.

In addition, it can also be provided that the locking device functions as a carrier for one or more sealing elements. This enables a multifunctional design to be achieved.

It can also be provided that the carrier part is designed in particular to accommodate the inner door pane. In an advantageous embodiment it is provided that in addition, at least one intermediate door pane is also received and held locked by the carrier part.

In an alternative embodiment it can be provided that the form-fitting connection consisting of the hook and the resilient locking is designed inversely. This means that the locking device as such is rigid and the hook is designed to be resilient.

In particular, a hook is designed as an angle element which is arranged on an inside of the door pane. With the portion of the angle element protruding downwards or from the inside of the door pane, a hole or a recess is formed, into which the engagement element of the locking bracket engages to produce the locking state.

As already mentioned, the carrier part is preferably designed as a one-piece cross strut which extends over the entire width of the door pane between two profiles. This is advantageous in that an improved support is achieved with regard to the introduction of force into the adjacent door profiles. The introduction of force from glued angle elements via the lock into the adjoining door components takes place with a minimal lever arm on a stop that is integrated into the carrier part. This stop is provided as close as possible to a connection point of the cross strut or the carrier part to a door profile. For this purpose, the door profile usually has a relatively narrow plate-like web, to which the carrier part is then screwed. As this proximity of the stop to this connection point is formed, a very small lever arm is generated, so that practically no bending occurs when forces act on this connection point.

Even if greater forces act on the elements involved, this can prevent damage.

The invention also relates to a door for a household appliance for preparing food, which door has an inner door pane and an outer door pane. The door also comprises a support part according to the invention or an advantageous one Design of it. The carrier part is arranged on an inside of the outer door pane and is designed to receive at least the inner door pane. It is preferably provided that the carrier part is arranged in the lower region of the outer door pane and is designed as a cross strut.

Fig. 1

eine perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Tür mit Blick auf eine Türinnenscheibe;

Fig. 2

einen vergrößerten Teilausschnitt der Darstellung in Fig. 1 mit abgenommener Türinnenscheibe;

Fig. 3

eine nochmals vergrößerte Teildarstellung der Fig. 2;

Fig. 4

eine perspektivische Darstellung der Türinnenscheibe mit angebrachtem Haken;

Fig. 5

eine vergrößerte Darstellung eines Teilausschnitts von Fig. 4;

Fig. 6

eine perspektivische Darstellung eines Ausführungsbeispiels eines Trägerteils;

Fig. 7

eine vergrößerte Darstellung eines Teilbereichs eines Ausführungsbeispiels eines erfindungsgemäßen Trägerteils;

Fig. 8

eine Schnittdarstellung in einem mittleren Bereich des Trägerteils gemäß Fig. 6; und

Fig. 9

eine Schnittdarstellung des Trägerteils gemäß Fig. 7.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

Fig. 1

a perspective view of an embodiment of a door according to the invention with a view of an inner door pane;

Fig. 2

an enlarged partial section of the illustration in Fig. 1 with the inner door pane removed;

Fig. 3

a further enlarged partial representation of the Fig. 2 ;

Fig. 4

a perspective view of the door inner panel with attached hook;

Fig. 5

an enlarged view of a partial section of Fig. 4 ;

Fig. 6

a perspective view of an embodiment of a carrier part;

Fig. 7

an enlarged illustration of a partial area of an embodiment of a carrier part according to the invention;

Fig. 8

a sectional view in a central region of the support part according to Fig. 6 ; and

Fig. 9

a sectional view of the carrier part according to Fig. 7 .

Identical or functionally identical elements are provided with the same reference symbols in the figures.

In Fig. 1 a door 1 for a household appliance for preparing food, for example an oven or a steam cooker or a microwave appliance, is shown in a perspective view. In particular, the door 1 is provided for an oven to close a cooking space.

The door 1 comprises an outer door pane 2, which can be made of glass or a glass-like material, for example. The door outer pane 2 is plate-like and flat.

In addition, the door 1 comprises at least one further pane in the form of an inner door pane 3, which is also designed in the manner of a plate and is arranged at a distance from and parallel to the outer door pane 2. It is also preferably made of glass or vitreous material. The inner door pane 3 represents the pane closest to the cooking space when the door 1 is closed. It can be provided that the door 1 has at least one intermediate door pane, which is positioned between the outer door pane 2 and the inner door pane 3 and is parallel to and spaced from the other discs is arranged.

As shown in Fig. 1 It can be seen that on an inner side 4 of the outer door pane 2, two parallel and elongated ones are formed Door profiles 5 and 6 arranged, in particular glued. The door inner pane 3, which is at least present, is attached to these door profiles 5 and 6.

In a lower area of the door profiles 5 and 6, hinges 7 and 8 are formed, by means of which the door 1 is arranged on a housing of the oven 1 and can correspondingly be pivoted relative thereto.

In the exemplary embodiment, the door 1 comprises a carrier part 9 which is arranged in the lower region of the door 1 and runs transversely to the door profiles 5 and 6. In the exemplary embodiment, this carrier part 9 is formed over a width which corresponds to the distance between the door profiles 5 and 6. In the exemplary embodiment, the carrier part 9 is made of plastic, in particular as an injection molded part. It is connected to the door profiles 5 and 6 at both opposite ends by screw connections. As can be seen, the carrier part 9 is an elongated, straight component.

The carrier part 9 is designed to receive and lock the inner door pane 3.

In Fig. 2 is an enlarged view of a partial section of Fig. 1 shown with the door inner pane 3 removed.

The carrier part 9, which is designed as a cross strut, comprises two locking devices, wherein in Fig. 2 only the locking device 10 can be seen in an end region of the carrier part 9. At the opposite end of the carrier part 9 there is a further locking device of similar design. The locking device 10 is for locking reception of a hook 21a arranged on the door inner pane 3 ( Fig. 4 ) educated. In this regard, a form-fitting receptacle and locking bracket are designed. The locking device 10 is designed to be integrated into the carrier part 9 and is thus formed in one piece with the carrier part 9.

For this purpose, the locking device 10 comprises a plate-like actuating element 11, which represents an outer termination of the locking device 10 and thus is accessible and operable from the outside. This plate-like actuating element 11 is movable, in particular pivotable, attached to a base support 12 of the support part 9 and can be moved relative thereto. In addition, the locking device 10 comprises a locking bracket 13 which is connected to the actuating element 11, in particular is formed in one piece. However, the locking bracket 13 is arranged behind the actuating element 11 and is not accessible from the outside. The locking bracket 13 is therefore only actuated indirectly via the actuating element 11.

The locking bracket 13 is also arranged in a receptacle 14 of the base support 12 and does not protrude beyond the depth (z-direction) over the base support 12 to the rear.

As shown in Fig. 2 It can also be seen that the door profile 5 has a web or a connecting flange 15 at its lower end, on which the carrier part 9 rests and is connected to the door profile 5 and in particular the connecting flange 15 via a screw 16. Adjacent to this connecting flange 15 and the final end of the carrier part 9, a stop 17 is integrated into the carrier part 9, through which the hook 21a, which is designed as an angle element, is in contact and when corresponding forces occur, which are then also transferred to the connecting flange 15 the smallest possible lever arm is formed, so that undesired deformations, in particular bending of the connecting flange 15, can be avoided.

In Fig. 3 is a further enlarged representation of the Fig. 2 shown, so that the actuating element 11 is shown in more detail. In Fig. 3 is opposite to the representation in Fig. 2 however, the situation is shown in which the door inner pane 3 is shown again in the assembled end position.

In Fig. 2 In addition, an ejector element 18 is also shown, which has a cylindrical configuration. The ejection element 18 can be moved relative to the base support 12 in the z-direction. There is also a spring, not shown, which is coupled to the ejector element 18. In Fig. 2 the extended end position of the ejector element 18 is shown, which is caused by the spring is kept biased. Based on the representation in Fig. 2 the inner door pane 3 is mounted and the angle element in the form of the hook 21a is inserted into the receptacle 14 for locking with the locking bracket 13, the ejector element 18 is also contacted by contacting an inner side 19 of the inner door pane 3 and pressed down. This takes place against the spring force of the spring provided. In the locked state, the ejector element 18 is then pressed inwards or downwards and the spring is held in a pretensioned or even more pretensioned state.

On the basis of this, the locked state is then unlocked, which is achieved in that the actuating element 11 is pressed inward as an elastic element, thereby the locking bracket with its inward Fig. 2 engagement element, not shown, is moved and thereby the engagement element emerges from a recess 20 ( Fig. 5 ) of the hook 21a slips and thereby the locked state is released. If this unlocked state is then reached, the hook 21a can be moved out in the z-direction. The optionally available spring-loaded ejector in the form of the ejector element 18 then automatically and independently pushes the door inner pane 3 in the z-direction, since this ejector element 18 automatically moves outwards due to the spring preload. The inner door pane 3 thus stands out to a certain extent from the carrier part 9 and the door profile 5 and the door profile 6, so that the inner door pane 3 can also be safely and easily gripped and completely lifted off by a user.

In Fig. 4 As already mentioned, the inner door pane 3 is shown with a view of an inner side 19 facing the outer door pane 2. It can be seen that the hook 21a and a further hook 21b are arranged, in particular glued, in the lower area on the opposite edges. The two hooks 21a and 21b are designed as angle elements, the hook 21b in FIG Fig. 5 is shown enlarged. In the exemplary embodiment, it is rigid and essentially rigid. However, it can also be provided that an inverse configuration of the mechanical coupling is provided and the hooks 21a and 21b are designed to be elastic and resilient and the locking devices 10 with their elements are designed to be rigid.

In Fig. 6 the carrier part 9 is shown separated in a perspective view. The locking device 10 is also shown, as is another locking device 22, which is formed on the opposite side of the elongated support part 9 and has already been mentioned. Here, too, there is a corresponding actuating element 23, a locking bracket 24 coupled to it, and a spring-loaded ejector element 25. A stop designed analogously to stop 17 is also provided here.

In Fig. 7 a partial section of the carrier part 9 is shown in an enlarged illustration in plan view. In this embodiment, the locking device 22 is shown. Here, too, a connecting flange 26 is provided, to which the carrier part 9 is screwed by means of a screw connection with a screw 27.

In addition to the plate-shaped actuating element 23 attached to the base support 12, the locking device 22 comprises the locking bracket 24. This has a bridge-like web 28 which is connected on the one hand to the base support 12 at a point 29 and on its front end facing the actuation element 23 an engagement element 30 which is wider in the x direction than the web 28. A hammer-like structure of the locking bracket 24 is thus formed at its front end.

As shown in Fig. 7 As can be seen, the engagement element 30 is integrally connected to the actuating element 23, with two connecting webs 32 and 33 which are arranged at opposite ends and extend accordingly to the rear on a lower edge 31 of the actuating element 23. These are connected to two further connecting parts 34 and 35, which are connected to the engagement element 30 in a set-back manner.

At a first edge 36 opposite the second edge 31, the plate-shaped actuating element 23 is movably connected to the base support 12 and is thus connected in a pivotable manner, for example via a film hinge.

The actuating element 23 and the locking bracket 24 are also on two opposite sides and thus at two opposite points on the Base support 12 attached. The fastening points are formed in particular on a straight line along an actuation path of the actuation element 23.

With regard to the actuation, it should be explained below that when the outside of the actuating element 23 is pressed, and thus in the y-direction, it pivots backwards and, due to the only connection with the locking bracket 24, this movement causes the bridge-like web 28 to deform and moves backwards. As a result, in the initially present locked state, the engagement element 30 is moved out of the recess 20 and the locked state is released. The hook 21b can then be lifted out in the z-direction.

It should also be mentioned that the carrier part 9 has two centering elements 37 and 38 on its base carrier 12 in the exemplary embodiment. These centering elements 37 and 38 are arranged on opposite sides in the x direction and at a distance from the actuating element 23 and the locking bracket 24. They are designed as webs that extend in the y-direction. In addition to the centering functionality, they also serve to stiffen the base support 12 and are thus designed to be multifunctional.

Each of the two centering elements 37 and 38 has a Y-shaped receptacle 39 and 40. This means that initially the receptacle is designed like a goblet at the top with two flanks running obliquely upwards and outwards and opens downwards into a narrow slot. This configuration allows the position to be centered when inserting the hook 21b before locking. The hook 21b then slides, at least in some areas, into the lower slot-shaped area of the Y-shaped receptacles 39 and 40, so that it is already centered and precisely positioned for the engagement of the engagement element 30. If it is pushed further down against the z direction, the hook no longer moves undesirably in the x and y directions, but only in the negative z direction, so that the engagement element 30 can specifically and safely snap into the recess 20.

In addition, a stop 41 designed analogously to stop 17, which is designed adjacent to centering element 40, is also formed on this end region of carrier part 9.

The shape and pretension of the bridge-like web 28 is designed so that in the locked state the engagement element 30 is pressed in the direction of the actuating element 23 and thus the state of the engagement element 30 snapped into the recess 20 cannot be released in an undesired manner. This takes place again only in that the actuating element 23 is pressed in the direction of the y-axis and thus the bridge-like web 28 is also compressed and pressed backwards, and thus the engagement element 30 slides out of the recess 20.

In Fig. 7 it can also be seen that the ejection element 25 is arranged in a receptacle 42, with FIG Fig. 7 the ejecting member 25 is not arranged.

In Fig. 8 the sectional illustration is shown in a further sectional illustration in a central section between the two ejection elements 18 and 25. It can be seen here that an outer wall 43 of the base support 12 has a very specific curved and arched shape in a lower region. This is to the effect that it slopes downward in a correspondingly curved manner in the z-direction from the side facing the inner door pane 3 towards the outer door pane 2, has a minimum 44 shortly before the front end facing the outer door pane 2 and then slightly again towards the front end increases. This creates a shape that enables a very specific flow profile. It is achieved that hot air emerging from the cooking space or the oven is not directed downwards, for example to a door handle of a further oven arranged below the oven, but is directed essentially at least horizontally forwards or slightly upwards. The correspondingly shaped outer wall 43 is similar in cross section to a partial area of a Venturi nozzle, so that the flow explained above can be generated and in particular the occurrence of desired turbulent flows can be prevented.

In Fig. 9 is in a further sectional view along the section line IV-IV in Fig. 7 in particular the carrier part 9 is shown in the area of the actuating element 23 and the locking bracket 24. In Fig. 9 the locked state is also shown.

List of reference symbols

1

door

2

Outer door pane

3

Inner door pane

4th

inside

5, 6

Door profiles

7, 8

Hinges

9

Carrier part

10, 22

Locking devices

11, 23

Actuators

12th

Basic carrier

13, 24

Locking bracket

14, 39, 40, 42

Recordings

15, 26

Connecting flanges

16, 27

Screws

17, 41

attacks

18, 25

Ejector elements

19th

inside

20th

Recess

21a, 21b

hook

28

web

29

Job

30th

Engagement element

31

second margin

32, 33

Connecting webs

34, 35

Connecting parts

36

first edge

37, 38

Centering elements

43

Outer wall

44

minimum

Claims (17)

1. Door (1) for a household appliance for preparing food, having a support element (9), a door pane (3) and a hook (21a, 21b) arranged on the door pane (3), wherein the support element (9) has at least one locking device (10, 22) which is embodied for the reception in a locking manner of a hook (21a, 21b) arranged on the door pane (3), characterised in that the support element (9) is made of plastic and the locking device (10, 22) is integrally formed with the support element (9), and the locking device (10, 22) has an actuating element (11, 23) which is arranged integrally on a base support (12) of the support element (9) and can be moved relative to the base support (12).
2. Door (1) according to claim 1, characterised in that the actuating element (11, 23) is connected to a locking bracket (13, 24), in particular is formed integrally, which locking bracket (13, 24) can be deformed as a function of the movement of the actuating element (11, 23).
3. Door (1) according to claim 2, characterised in that the locking bracket (13, 24) is bent into a U-shape.
4. Door (1) according to claim 2 or 3, characterised in that the actuating element (11, 23) and the locking bracket (13, 24) are embodied and coupled as a snap-action mechanism.
5. Door (1) according to one of claims 2 to 4, characterised in that the actuating element (11, 23) and the locking bracket (13, 24) are connected to the base support (12) at two different points (29, 36).
6. Door (1) according to one of claims 2 to 5, characterised in that the locking bracket (13, 24) has a bridge-shaped web (28), at the front end of which an engaging element (30) is arranged which is wider than the web (28) and which in the locked state is embodied to engage in the hook (21a, 21b) of the door pane (3).
7. Door (1) according to one of claims 3 to 6, characterised in that the actuating element (11, 23) is embodied as plate-shaped and is pivotably arranged on a first edge (36) on the base support (12) and two connecting webs (32, 33) are formed on an opposite second edge (31), which are connected to the locking bracket (13, 24), in particular an engagement element (30) of the locking bracket (13, 24).
8. Door (1) according to one of claims 2 to 7, characterised in that the base support (12) has a centring element (37, 38) on at least one side adjacent to the actuating element (11, 23), with which a position centring of the hook (21a, 21b) can be generated, in particular a position centring is formed before locking .
9. Door (1) according to claim 8, characterised in that the centring element (37, 38) is embodied as a web which extends laterally between the actuating element (11, 23) and the locking bracket (13, 24).
10. Door (1) according to claim 8 or 9, characterised in that the centring element (37, 38) has a Y-shaped receptacle (39, 40) for the hook (21a, 21b).
11. Door (1) according to one of the preceding claims, characterised in that the base support (12) has a movable ejector element (18, 25) which is embodied to lift the door pane (3) as a function of the actuation of the actuating element (11, 23) and the release of the lock.
12. Door (1) according to claim 11, characterised in that the ejector element (18, 25) is biased by a spring.
13. Door (1) according to one of the preceding claims, characterised in that the base support (12) has an outer wall (43) that is curved in some areas and drawn downwards towards the front, by which an air guide wall is formed for targeted air guidance.
14. Door (1) according to one of the preceding claims, characterised in that it has a door inner pane (3) and a door outer pane (2), wherein the support element (9) is arranged on an inner side (4) of the door outer pane (2) and is embodied to accommodate at least the door inner pane (3).
15. Door (1) according to claim 14, characterised in that the support element (9) is arranged in the lower region of the door outer pane (2) and is embodied as a cross-strut.
16. Door (1) according to claim 14 or 15, characterised in that the support element (9) is connected to a door profile (5, 6), in particular is screwed.
17. Door (1) according to one of claims 14 to 16, characterised in that the hook (21a, 21b) is embodied as an angle element with a receiving hole (20) which is arranged on the outside (19) of the door inner pane (3).

Images