Cooking appliance with folding door having staggered hinges

Abstract

The invention relates to a cooking appliance (1) having a housing (2) in which a cooking chamber (3) is configured, and a door (4) for closing the cooking chamber (3), wherein the door is configured as a folding door (4) having a first door section (5) and a second door section (6) separate from the first door section, wherein at least two door sections (5, 6) are pivotably connected to one another directly with a first hinge device (12), wherein the first door section (5) is connected on an upper door section end with a second hinge device (13) to a guide device (14) arranged on the housing (2), and the second door section (6) is connected on a lower door section end with a third hinge device (18) to the housing (2), characterized in that the pivot axis (A) of the first hinge device (12) is arranged closer to the cooking chamber (3) than the pivot axis (B) of the second hinge device (13) and closer to the cooking chamber (3) than the pivot axis (C) of the third hinge device (18) in the closed state of the folding door (4) viewed in the depth direction (z) of the cooking chamber (1).

Description

Technical Field

[0001] One aspect of the invention relates to a cooking appliance having a housing. A cooking chamber of the cooking appliance is constructed within the housing. Food can be cooked within the cooking chamber. Furthermore, the cooking appliance has a door for closing the cooking chamber. The door is constructed as a folding door. The folding door has a first door segment and a second door segment separate therefrom. The door segment is a plate-like component. When unfolded, the door segment forms a single panel in a plane that closes the cooking chamber. The at least two door segments are directly pivotally connected to each other by a first hinge device. The first door segment is connected at its upper end to a guide device of the cooking appliance arranged on the housing by a second hinge device of the cooking appliance. The second door segment is connected to the housing at its lower end by a third hinge device of the cooking appliance. Background Technology

[0002] Cooking appliances with doors are known in various embodiments. Here, panel doors are known, wherein the door panel is constructed as a body capable of pivoting about a horizontal axis and about a vertical axis. Additionally, recessable doors are also known. In these designs of cooking appliances, a storage compartment is constructed below the cooking chamber, and the door is capable of pivoting inward into said storage compartment. For these doors, the base is also designed as a single body with a panel-like structure. The panel itself is also not deformable in these embodiments.

[0003] Furthermore, a cooking appliance is known from US 2019383496, which has a folding door with at least two door segments that can pivot relative to each other. However, a disadvantage of this prior art is that the pivot axis of the hinge mechanism is positioned in a single plane. This creates a disadvantage, particularly when the folding door is closed. The folding door is especially prone to spontaneously moving slightly away from the housing and performing only a minimal folding motion. This results in a lack of airtightness when the door is closed. Relatedly, the manipulation of the door for opening and closing is also disadvantageous, as it requires more effort from the user. Summary of the Invention

[0004] The objective of this invention is to provide a cooking appliance in which a folding door has been improved in terms of its positioning and operation.

[0005] This task is solved using a cooking utensil.

[0006] One aspect of the invention relates to a cooking appliance having a housing. A cooking chamber of the cooking appliance is constructed within the housing. Food can be cooked within the cooking chamber. Furthermore, the cooking appliance has a door for closing the cooking chamber. The door is constructed as a folding door. The folding door has a first door segment and a second door segment separate therefrom. The door segments are plate-like components. In their unfolded state, they form a single panel in a plane that closes the cooking chamber. The at least two door segments are directly pivotally connected to each other by at least one first hinge device. The first door segment, particularly at its upper end, is connected to a guide device of the cooking appliance arranged on the housing by at least one second hinge device of the cooking appliance. The second door segment, particularly at its lower end, is connected to the housing by at least one third hinge device of the cooking appliance.

[0007] With the folding door closed, viewed along the depth of the cooking appliance, the pivot axis of the first hinge device is positioned closer to the cooking chamber than the pivot axis of the second hinge device. Furthermore, with the folding door closed, viewed along the depth of the cooking appliance, the pivot axis of the first hinge device is positioned closer to the cooking chamber than the pivot axis of the third hinge device. Through this design, the pivot axes of the at least three hinge devices are staggered from each other.

[0008] In one particular embodiment, the hinge device located in the middle along the height direction is positioned closer to the cooking chamber with its pivot axis than the other two pivot axes of the other two hinge devices. In this example, the pivot axis is along the width direction and therefore horizontally oriented. In another embodiment, the pivot axis is vertical and therefore oriented along the height direction. Here, the pivot axis that is in the middle along the width direction of the latter three pivot axes is closer to the cooking chamber along the depth direction than the other two pivot axes.

[0009] These embodiments enable the folding door to be precisely held in its closed position, and thus maintained in its final closed position. This prevents the door from undergoing segmented, minor folding movements when closed. Consequently, a durable, sealed positioning of the folding door on the housing, particularly on the front flange, is also achieved. Advantageously, this positioning of the pivot axis also facilitates the opening and closing of the folding door for the user. The staggered positioning of the pivot axis, especially the pivot axis centered along the height direction relative to the other two pivot axes, allows for more effortless movements for folding and unfolding the door. This provides a more user-friendly operation, especially if the opening of the folding door should be performed manually by the user.

[0010] In one embodiment, the distance measured along the depth direction between the pivot axis of the first hinge device and the pivot axes of the second and third hinge devices is between 2 cm and 7 cm. This offset achieves the advantages mentioned above to a particular extent.

[0011] In one embodiment, the three hinge devices are arranged such that the door segments, in their folded final position or in the folded state, are positioned at an interior angle greater than 0° relative to each other. Specifically, this interior angle is between 1° and 10°. Thus, this design achieves that, in the folded door fully open and in the folded final position relative to each other, the door segments are not oriented with their planes parallel to each other. This angled arrangement allows for very advantageous movement of the door segments from their folded final position to the unfolded position and thus towards the closed final position of the folded door. Therefore, initiating the movement of the door segments out of this folded final position becomes easier. This also reduces force consumption. Furthermore, this positioning also ensures that the faces of the door segments facing each other are not directly, especially not entirely, placed directly on top of each other. Therefore, on the one hand, it can avoid contamination of components or undesirable mutual friction and scratches, and on the other hand, it can achieve ventilation in the area between the two door segments in the final folded position and thus in the fully open position of the folding door.

[0012] In one embodiment, the guiding device is specified to be vertically oriented. Specifically, the guiding device has guide rails on opposite side regions of the housing, particularly the front region of the housing. The guiding device is configured such that the first door segment of the folding door is guided by the guiding device throughout its entire folding stroke. In one embodiment, the folding and unfolding are performed along the width direction of the cooking appliance rather than its height; in this embodiment, the guiding device, particularly the guide rails, are horizontally oriented.

[0013] In one embodiment, the first door segment is constructed with a set of window slats. This set of window slats forms, in principle, the base of the door segment, thereby creating the panel shape of the door segment. This set of window slats has at least two individual door slats. In one embodiment, the second door segment is specified to have a set of window slats having at least two door slats. For the second door segment, this set of window slats also forms the base of the second door segment and thus forms the panel shape of the second door segment in principle. Here, the two door slats are also separate slats. They are arranged spaced apart from each other along the depth direction, thereby creating an air space or intermediate space between the door slats. In the unfolded, closed, and thus in the closed final position of the folding door, the pivot axis of the first hinge device is positioned closer to the cooking chamber than the corresponding inner window slat closest to the cooking chamber in the two set of window slats. Thus, this particular pivot axis of the first hinge device is positioned further toward the cooking chamber than the two set of window slats. This appears to be another highly advantageous implementation method, as evidenced by the aforementioned advantages of the cooking appliance. Furthermore, this design eliminates the need for more complex shapes for the inner window panes, particularly more complex through guide sections and / or notches. The positioning of this first hinge device also allows for greater flexibility and variability in motion guidance, enabling continuous folding and unfolding. The window panes are, in particular, made of glass.

[0014] In one embodiment, the first door segment has a window slat assembly with at least two slats, and the second door segment has a window slat assembly with at least two slats. Preferably, a seal is arranged between the inner slats of the window slat assembly that are closer to the cooking area than the other slats in the assembly. This seal is preferably a cavity seal. It is also preferably a waterproof strip seal. Thus, this separation position, or the interface between the slats or between the edges of the inner slats facing each other, is preferably sealed. This sealing is achieved not only in the closed final position of the folding door but also in the open final position. Therefore, the interface between the edges of the inner slats facing each other is sealed throughout the folding stroke. This also advantageously avoids unwanted temperature input to the other slats and / or the intermediate area between the slats in all folding positions. Here, unwanted heating of the outer slats of the window slat assembly is at least significantly reduced. Furthermore, this sealing of the specific interface also prevents contaminants from reaching the intermediate space between the door and window slats of the window assembly from entering the cooking chamber. Specifically, this arrangement of the seals seals the gap between the lower edge of the inner window slat of the upper first door segment and the upper edge of the inner window slat of the lower second door segment. As already mentioned, this is particularly true in all folded positions of the door segments relative to each other.

[0015] In one embodiment, the first door segment has a set of window panels with at least two door / window slats. The second door segment has a set of window panels with at least two door / window slats. In the closed, unfolded final position of the folding door, the distance between the two door / window slats of the first set, measured along the depth direction of the cooking appliance, and / or the distance between the corresponding door / window slats of the second set, is several times larger than the gap between the lower edge of the door / window slats of the upper set of the first upper door segment and the upper edge of the corresponding door / window slats of the lower set of the second lower door segment, measured along the height direction of the cooking appliance. This is another very advantageous implementation. It allows the intermediate space between the door / window slats to function as a ventilation or cooling channel, through which air circulation can occur. Thus, the door / window slats can be cooled. However, it avoids the possibility that air might otherwise escape through gaps between the edges or corners of the door / window slats facing each other.

[0016] In one embodiment, the first door segment has a window panel group with at least two door / window panels. The second door segment also has a window panel group with at least two door / window panels. In the fully extended and closed final position of the folding door, viewed along the height direction of the cooking appliance, the gap between the front window panels of the first and second window panel groups is positioned lower than the gap between the other door / window panel of the first and second window panel groups. This is another highly advantageous implementation. Because this staggered arrangement, particularly along the height direction, of the gaps between the door / window panels of different window panel groups, which are respectively paired and arranged in the same plane, allows the front window panel of the upper first window panel group to extend forward, especially in the fully extended final position of the folding door in the closed state. This also provides some protection for the user, preventing undesirable contact with the inner window panels of the lower second door segment's window panel group. Therefore, the forward-extending portion of the front window panel of this door segment, which is also located at the top in the folded state, also forms a certain overhang portion, so that the door and window panels of the second window panel group can be as difficult to contact as possible.

[0017] In one embodiment, the folding door has a motion support device. This motion support device can generate a folding force, thus supporting the folding and / or unfolding process. This reduces the force required for the user to manually move the folding door.

[0018] In particular, the motion support device has at least one spring, which is supported by the elastic force as a folding force at least in the unfolding process for closing the folding door.

[0019] In one embodiment, the cooking appliance has a motor or drive unit that at least partially drives the folding process of the folding door and the accompanying opening and / or closing movements. This minimizes user intervention. Only the motor needs to be activated if necessary, such as through manipulation of the appliance's operating elements.

[0020] In one embodiment, the cooking appliance has a holding unit. This holding unit is used to hold the folding door in its final unfolded and closed position. As a supplementary or alternative, the final folded and open position of the folding door can be held by the holding unit of the cooking appliance. The holding unit can have a snap-fit ​​connection and / or a magnetic retainer. Other holding options are also conceivable. This achieves that the folding door can be released by the user in its respective final position without voluntarily returning to that position. If the motion support device is present, the holding unit can also be used to specifically secure the open and folded final position. Specifically, the motion support device can at least support the unfolding process when the holding unit is released.

[0021] In one embodiment, the second hinge device is connected to the guide device via a releasable connection that can be removed without damage. This also allows the second hinge device to be detached from the guide device. This improves the accessibility of the inner side of the folding door. This is particularly advantageous for cleaning, maintenance, or installation purposes.

[0022] Furthermore, this removable connection is easy to manipulate and is correspondingly robust.

[0023] In one embodiment, the connection can have a pin, which is held in place by a spring in a pre-tensioned manner. By overcoming the spring force, the pin can be released without damage from its connection position with the guide device, thereby decoupling the second hinge device from the guide device. This achieves simple releasability and re-enabling of the coupling. In particular, this pin also represents a guide element, which is guided in the guide device, especially in the guide groove of the guide rail of the guide device.

[0024] In one embodiment, in the folded, open final position of the folding door, the interior angle between the upper first door segment and the vertical line is greater than 90°. This achieves complete accessibility to the cooking room in this folded, open final position. The folding door is unobstructed due to its forward and downward pivotability.

[0025] In one embodiment, a storage compartment for the cooking appliance is constructed within the housing below the cooking chamber. Specifically, this storage compartment is separate from the cooking chamber. The storage compartment is not the cooking chamber; it is not designed for storing and cooking food. It can be configured to accommodate accessories, such as baking trays, grill plates, or other food supports. However, this storage compartment can also be configured as a warming compartment. In such a design, food that has already been cooked in the cooking chamber can be kept warm in the warming compartment. Specifically, the cooking appliance has a pivot door separate from the folding door. This pivot door is configured to close the storage compartment or warming compartment from the front. Specifically, a push-push mechanism is provided here to enable the opening and closing of this pivot door.

[0026] The terms "above", "below", "in front", "behind", "horizontal", "vertical", "depth direction", "width direction", "height direction", etc., are used to describe the given position and orientation when the appliance is used and arranged in accordance with regulations.

[0027] Other features of the invention are derived from the accompanying drawings and description. The features and combinations thereof mentioned above in the specification, as well as those mentioned below in the description and / or shown separately in the drawings, can be used not only in the corresponding illustrated combinations, but also in other combinations or individually, without departing from the scope of the invention. Therefore, embodiments of the invention that are not explicitly shown and explained in the drawings, but which are known and can be derived from separate combinations of features from the explained embodiments, are also considered to be included and disclosed. Attached Figure Description

[0028] The embodiments of the present invention will be explained in detail below with the aid of schematic diagrams. Wherein:

[0029] Figure 1 A perspective view of an embodiment of the cooking appliance according to the invention is shown, wherein the folding door is in its unfolded, closed final position;

[0030] Figure 2 It shows according to Figure 1 An illustration of a cooking appliance, wherein the door is positioned in the middle;

[0031] Figure 3 It shows according to Figure 1 and Figure 2 A partial illustration of a cooking appliance, wherein the folding door is in its folded, open final position;

[0032] Figure 4 It shows according to Figure 1 A schematic cross-sectional view of a cooking utensil;

[0033] Figure 5 It shows according to Figure 2 A schematic cross-sectional view of a cooking utensil;

[0034] Figure 6 It shows according to Figures 1 to 5 A perspective view of the cooking utensils, along with a schematic diagram of the additional components;

[0035] Figure 7 A partial cross-sectional view of the cooking appliance in the area of ​​the folding door, in its fully extended and closed position, is shown.

[0036] Figure 8 It shows according to Figure 7 The illustration shows the folding door in the middle position; and

[0037] Figure 9 A partial perspective illustration of the cooking appliance, together with a sub-assembly of the hinge device for the folding door, is shown. Detailed Implementation

[0038] In the accompanying drawings, identical or functionally identical elements are given the same reference numerals.

[0039] exist Figure 1 The diagram illustrates a cooking appliance 1. The cooking appliance 1 is constructed for cooking food. The cooking appliance 1 can be an oven, a steam cooker, or a microwave cooker. It can also combine at least two of the related design options.

[0040] The cooking appliance 1 has a housing 2. A cooking chamber 3 for cooking food is constructed within the housing 2. Furthermore, the cooking appliance 1 has a door arranged to close the cooking chamber 3. This door is configured as a folding door 4. It is movably arranged on the housing 2. In this embodiment, the folding door 4 has a first door segment 5 and a separate second door segment 6.

[0041] The folding door 4 is configured here to fold along the height direction (y-direction) of the cooking appliance 1. In another embodiment, the folding door 4 can also be configured to fold along the width direction (x-direction) of the cooking appliance 1. The following explanation then applies accordingly, however, in the case of a 90° rotation.

[0042] Furthermore, in one embodiment, the cooking appliance 1 has an operation panel 7. The operation panel 7 may also have an operation device and / or a display device 8.

[0043] In one embodiment, the cooking appliance 1 has a separate storage chamber 9 in addition to the cooking chamber 3. The storage chamber 9 is constructed below the cooking chamber 3 along the height direction (y-direction) of the cooking appliance 1. The storage chamber 9 can be used to accommodate cooking supports, such as baking pans, grease buckets, or grill plates. The storage chamber 9 can be closed at its end by a separate door 10. This door is particularly a folding door. It can be opened, in particular, by a push-push mechanism. Specifically, a mechanism is provided here that releases the locking state of the door 10 in the closed state by pressing against the direction of arrow P1, thereby enabling an independent opening movement in the direction of arrow P1.

[0044] As specified in this embodiment, the folding door 4 has a handle 11. The handle 11 is preferably located on the upper first door segment 5. Specifically, the handle is positioned along the height direction in the lower half of the height of this first door segment 5, particularly in the lower third, where this is the location of the folding door 4 in… Figure 1 It can be seen in the final position of being expanded and closed, as shown in the diagram.

[0045] In this embodiment, when viewed from the closed final position of the folding door 4, the upper first door segment 5 is higher than the lower second door segment 6.

[0046] exist Figure 2 The image shows the cooking appliance 1 in the following state, in which the folding door 4 is open from the center. Figure 1 The closed, unfolded final position of the folding door is partially opened. The folding door 4 is shown here in an intermediate position between its closed final position and its fully open, folded final position.

[0047] As in Figure 2 As can be seen from the diagram, in one embodiment, it is specified that when the folding door 4 moves, the door 10 is motion-coupled with the folding door 4. If the folding door 4 moves as described... Figure 1 As shown, in the final closed position, the folding door 4 remains stationary as a whole, while the door 10 can also be opened and closed independently.

[0048] exist Figure 3The perspective view shows the cooking appliance 1 in another position with the folding door 4. The folding door 4 is shown here in its fully open, folded final position. As can be seen, the upper first door segment 5 is oriented downwards at an angle β relative to the horizontal line in this open final position. In this respect, the angle between the vertical line and the front of the first door segment 5 is greater than 90°. Furthermore, the interior angle α between the first door segment 5 and the second door segment 6 is greater than 0° and less than or equal to 10°.

[0049] As in Figure 3 As can be seen from the diagram, the folding door 4 is constructed with a first hinge device 12. This is a hinge device that directly connects the two door segments 5 and 6 to each other. The pivot axis A of this first hinge device 12 is oriented inwards towards the plane of the attached drawing.

[0050] Furthermore, the first door segment 5 is connected to the housing 2 by a second hinge device 13. In particular, a connection to a guide device 14 is provided on the housing 2. Therefore, this direct connection allows the first door segment 5 to be guided along its entire path of movement, particularly between the open and closed final positions on the housing 2. Here, the guide device 14 specifically has two guide rails 15 and 16. These guide rails are oriented vertically along the height direction. The guide rails are constructed on the opposite side regions of the housing 2, particularly on the front flange of the housing 2. The second hinge device 13 is constructed at the upper end 17 of the first door segment 5.

[0051] Furthermore, a third hinge device 18 is provided. With this third hinge device 18, the second door segment 6 is movably connected to the housing 2. Specifically, the lower end 19 of the second door segment 6 along the height direction is connected to this hinge device 18. The third hinge device 18 has a pivot axis C. The second hinge device 13 has a pivot axis B. The pivot axes A, B, and C are oriented parallel to each other. They are oriented particularly along the width direction and therefore horizontally.

[0052] In particular, the cooking appliance 1 has two first hinge devices 12, two second hinge devices 13, and two third hinge devices 18. These hinge devices are respectively arranged on the end sides of the door segments 5 and 6, which are opposite each other along the width direction.

[0053] As in Figure 3 As can be seen in the other accompanying drawings, the first door segment 5 is constructed in a plate-like manner. Similarly, the second door segment 6 is also constructed in a plate-like manner.

[0054] exist Figure 4 The schematic cross-sectional view in the middle shows the cooking appliance 1 in accordance with Figure 1 The situation is as follows. It can be seen that the first door segment 5 has a first window panel group 20. In this embodiment, the first window panel group 20, as a door / window panel, has a front window panel 21 and an inner window panel 22. In particular, an intermediate window panel 23 is also provided between the front window panel 21 and the inner window panel 22. These plate-like, and especially at least regionally transparent, door / window panels are oriented parallel to each other and spaced apart from each other along the depth direction (z-direction). Therefore, intermediate spaces 24 and 25 are formed between the individual door / window panels. These intermediate spaces 24 and 25 can also be used as air channels so that air can be guided through them in a defined manner. Thus, the door / window panels are cooled.

[0055] In addition, Figure 4 In one embodiment, it can also be seen that the second door segment 6 has a window panel assembly 26. Specifically, this window panel assembly 26 is constructed as a door / window panel, comprising a front window panel 27 and an inner window panel 28. A middle window panel 29 is also provided. (As in...) Figure 4 As can be seen, in this final closed position of the folding door 4, the front window panels 21 and 27 are directly stacked vertically and aligned with each other along the height direction. This also applies to the inner window panels 22 and 28. The same applies to the middle window panels 23 and 29. Figure 4 As can be seen from the diagram, air spaces 30 and 31 are also constructed between the corresponding door and window panels of the second window panel group 26.

[0056] In the illustrated embodiment, viewed along the depth direction, the pivot axis A is offset relative to the other two pivot axes C and B. Specifically, a spacing measured along the depth direction is constructed here, which is between 1 cm and 7 cm, particularly between 2 cm and 7 cm, particularly between 3 cm and 7 cm, and particularly between 4 cm and 7 cm. This spacing can also be larger. The pivot axes A, B, and C are oriented here perpendicular to the plane of the figure.

[0057] In one embodiment, the lower edge or lower ridge 21a of the front window 21 is specified. Figure 5 The transition area 32 between the upper edge or upper ridge 27a of the front window slat 27 and the inner window slat 28 is positioned lower along the height direction than the corresponding transition areas 33 and 34 between the other window slats in the window slat group. The transition area 33 is formed here between the lower ridge 23a of the middle window slat 23 and the upper ridge 29a of the middle window slat 29. The transition area 34 is formed between the lower ridge 22a of the inner window slat 22 and the upper ridge 28a of the inner window slat 28. In particular, the transition areas 33 and 34, and their corresponding interfaces, are positioned at the same height along the height direction.

[0058] In particular, this distance, measured along the height direction, is offset by several centimeters between the interface or transition zone 33 and 34 and the transition zone 32. In particular, this distance is less than 10 cm in the closed state of the folding door 4 or in its final closed position, especially less than or equal to 5 cm, but greater than 1 cm.

[0059] In addition, such as in Figure 4 As can be seen, in the final closed position of the folding door 4, when viewed along the depth direction, the pivot axis A of the first hinge device 12 is arranged closer to the cooking chamber 3 than the inner window panels 22 and 28, especially their back sides.

[0060] In one embodiment, a seal 35 is provided at the transition area 34 between the lower edge 22a and the upper edge 28a. Figure 6 The seal 35 is in particular a cavity seal. Specifically, the seal 35 is a waterproof strip seal. Thus, the gap formed between the lower edge 22a and the upper edge 28a at the transition zone 34, especially in the final closed position of the folding door 4, is sealed. In particular, the seal 35 is configured such that it seals relative to each other in all folding positions of the door segments 5 and 6.

[0061] exist Figure 6 The view shows a partial section of the cooking appliance 1 in perspective, with the folding door 4 shown in an intermediate position between its final open and final closed positions. The motion support device 36 of the cooking appliance 1 is schematically shown here. This motion support device 36 has at least one spring 37. The spring 37 is arranged in the area of ​​the first hinge device 13.

[0062] Thus, in particular, the unfolding movement of the folding door 4 is supported. Therefore, the process originates from the folding door 4 in... Figure 3 The folded, opened final position shown is supported as it moves towards the unfolded, closed final position. When opened, this spring 27 is tensioned, thus creating a corresponding elastic force.

[0063] exist Figure 7 The schematic partial illustration shows the folding door 4 in its closed, final position, with a regionally sectional view. Two window slat groups 20 and 26 are shown. Furthermore, gaps 38 and 39 are shown. These gaps are formed at transition areas 32 and 33. The heights of these gaps 38 and 39, measured along the vertical direction, are several times smaller than the distances between the corresponding adjacent door / window slats of the window slat groups 20 and 26, measured along the depth direction. These distances are shown here as 40 and 41.

[0064] In one embodiment, the folding door 4 is specified by a retaining unit 42 ( Figure 6 It is held in its final open position. This prevents, especially due to the presence of at least one pre-tensioned spring 37, from moving upwards rather than as desired.

[0065] The retaining unit 42 can be, for example, a snap-fit ​​connection and / or a magnetic retainer. Correspondingly, a retaining unit can also be provided that holds the folding door 4 in its final unfolded or closed position. This can also be the retaining unit 42.

[0066] exist Figure 8 The text shows the following: Figure 7 The illustration shows this, but it is in the middle position of the folding door 4.

[0067] By positioning the transition zone 32 on one side and the transition zones 33 and 34 on the other side along the height direction differently, a situation is created in the fully opened final position of the folding door 4, as shown in... Figure 3 The design shown is as follows. Relatedly, the front window 21 of the upper first door segment 5 is further away from the cooking chamber 3 than the inner window 22 and, in particular, the middle window 23. Therefore, this front window 21 forms a protrusion or overhang towards the user. This overhang 43 ( Figure 3 To prevent unintended contact with the middle window 23 and / or inner window 22 and / or window group 26 of the second door segment 6.

[0068] exist Figure 9 The partial perspective view shows the right side region of the folding door 4 from above. Here, the folding door is not shown in its fully closed final position. This arrangement is to show the connection 44, which can be released without damage. The connection 44 is the mechanical coupling between the guide device 14 and another second hinge device 13 shown here. Here, the hinge element, specifically the pin 45, is fitted into the guide rail 15 when viewed along the width direction. The connection 44, in addition to the pin 45, which is part of the other second hinge device 13, also includes a spring 46, which is only symbolically shown here. This spring 46 presses the pre-tensioned pin 45 into the guide rail 15 along the width direction (x-direction) of the cooking appliance 1. An actuating element 47 is provided. This actuating element allows the pin 45 to move against the spring force of the spring 46 and thus move out of the guide rail 15. Therefore, the coupling between the pin 45 and the guide rail 15 can be released.

[0069] Thus, the second hinge device 13 is subsequently released from the guide device 14. This is especially true for situations where... Figure 3The second hinge device 13, arranged on the left side as shown, also performs this operation. Thus, the first door segment 6 can be completely folded out of the housing 2. Therefore, the folding door 4 can also be easily accessed for cleaning or maintenance and installation work from the inside facing the cooking chamber.

[0070] It is also possible to arrange a water storage tank in the storage chamber 9, either as an additional addition or in place of the aforementioned objects. This is particularly advantageous when the cooking appliance 1 has a steam cooking function.

[0071] It is also possible that the cooking appliance has a motor 48 ( Figure 1 The motor 48 enables the movement of the folding door 4 to be performed automatically, at least in sections.

[0072] List of reference numerals

[0073] 1. Cooking utensils

[0074] 2 shells

[0075] 3 cooking rooms

[0076] 4-fold door

[0077] 5-door segmentation

[0078] 6-door segmentation

[0079] 7. Operation Panel

[0080] 8. Operating device and / or display device

[0081] 9 storage rooms

[0082] 10 doors

[0083] 11 hands

[0084] 12 First hinge device

[0085] 13 Second hinge device

[0086] 14 Guiding Devices

[0087] 15 guide rails

[0088] 16 guide rails

[0089] 17 Upper end

[0090] 18 Third hinge device

[0091] 19 Lower end

[0092] 20 window panes

[0093] 21 front window

[0094] 21a lower edge

[0095] 22 inner window panes

[0096] 22a lower edge

[0097] 23 Middle Window

[0098] 23a lower edge

[0099] 24 intermediate spaces

[0100] 25 intermediate space

[0101] 26 window panes

[0102] 27 front window

[0103] 27a upper edge

[0104] 28 inner window panes

[0105] 28a upper edge

[0106] 29 Middle Window

[0107] 29a upper edge

[0108] 30 air spaces

[0109] 31 Air Space

[0110] 32 Transition Zone

[0111] 33 Transition Zone

[0112] 34 Transition Zone

[0113] 35 seal

[0114] 36 motion support devices

[0115] 37 springs

[0116] 38 gaps

[0117] 39 gaps

[0118] 40mm spacing

[0119] 41 spacing

[0120] 42 holding unit

[0121] 43 Exceeding part

[0122] 44 Connecting parts

[0123] 45 pin

[0124] 46 springs

[0125] 47 Control elements

[0126] 48 motors

[0127] α angle

[0128] β angle

[0129] x-width direction

[0130] y-axis

[0131] z-depth direction

[0132] A pivot axis

[0133] B Pivot Axis

[0134] C Pivot axis

[0135] Arrow P1

Claims

1. A cooking appliance (1) having a housing (2) and a door (4), wherein a cooking chamber (3) is constructed in the housing, and the door is used to close the cooking chamber (3), wherein the door is constructed as a folding door (4), the folding door having a first door segment (5) and a second door segment (6) separate from the first door segment, wherein at least two door segments are pivotally connected directly to each other by at least one first hinge device (12), wherein the first door segment (5) is connected at its end to a guide device (14) arranged on the housing (2) by at least one second hinge device (13), and the second door segment (6) is connected at its end to the housing (2) by at least one third hinge device (18), characterized in that, In the closed state of the folding door (4), the pivot axis (A) of the first hinge device (12) is positioned closer to the cooking chamber (3) along the depth direction (z) of the cooking chamber (3) than the pivot axis (B) of the second hinge device (13) and closer to the cooking chamber (3) than the pivot axis (C) of the third hinge device (18), wherein the first door segment (5) has a first window panel group (20) having at least two door and window panels (21, 22, 23), and the second door segment (6) has a first window panel group (20) having at least two door and window panels (27). The second window group (26) of the first window group (20), in the unfolded, closed final position of the folding door (4), when viewed along the height direction (y) of the cooking appliance (1), the gap between the front window (21) of the first window group (20) and the front window (27) of the second window group (26) is arranged lower than the gap between the other door window (22, 23) of the first window group (20) and the corresponding other door window (28, 29) of the second window group (26), the pivot axis (A, B, C) is oriented along the width direction and therefore horizontally.

2. The cooking utensil (1) according to claim 1, characterized in that, The distance measured along the depth direction (z) between the pivot axis (A) of the first hinge device (12) and the pivot axes (B, C) of the second hinge device (13) and the third hinge device (18) is between 2 cm and 7 cm.

3. The cooking utensil (1) according to claim 1 or 2, characterized in that, The first hinge device (12), the second hinge device (13) and the third hinge device (18) are arranged such that the first door segment (5) and the second door segment (6) are arranged relative to each other at an interior angle (α) greater than 0° at the folded end position.

4. The cooking utensil (1) according to claim 1 or 2, characterized in that, In the unfolded and closed state of the folding door (4), the pivot axis (A) of the first hinge device (12) is arranged closer to the cooking chamber (3) than the inner window panels (22, 28) of the first window panel group (20) and the second window panel group (26) that are closest to the cooking chamber (3).

5. The cooking utensil (1) according to claim 1 or 2, characterized in that, A seal (35) is arranged between the inner window panels (22, 28) closest to the cooking chamber (3) in the first window panel group (20) and the second window panel group (26) to seal the gap between the lower edge (22a) of the inner window panel (22) of the upper first door segment (5) and the upper edge (28a) of the inner window panel (28) of the lower second door segment (6).

6. The cooking utensil (1) according to claim 1 or 2, characterized in that, In the closed and unfolded end positions of the folding door (4), the distance (40, 41) between the two door and window panels (21, 22, 23) of the first window panel group (20) measured along the depth direction (z) and / or the distance (40, 41) between the two corresponding door and window panels (27, 28, 29) of the second window panel group (26) measured along the depth direction (z) is several times larger than the gap (38, 39) between the lower edge (21a, 22a, 23a) of the door and window panels (21, 22, 23) of the upper first door segment (5) and the upper edge (27a, 28a, 29a) of the corresponding door and window panels (27, 28, 29a) of the lower second door segment (6) measured along the height direction (y).

7. The cooking utensil (1) according to claim 1 or 2, characterized in that, Looking along the height direction, the middle hinge device is positioned closer to the cooking chamber (3) with its pivot axis (A) than the other two pivot axes (B, C) of the other two hinge devices.

8. The cooking utensil (1) according to claim 1 or 2, characterized in that, The folding door (4) has a motion support device (36) which can generate a folding force to support the folding and / or unfolding process.

9. The cooking utensil (1) according to claim 8, characterized in that, The motion support device (36) has at least one spring (37), which is used to support the unfolding process of closing the folding door (4) by the elastic force as a folding force.

10. The cooking utensil (1) according to claim 1 or 2, characterized in that, The cooking appliance (1) has a motor (48) which at least partially performs the folding process of the folding door (4) and the accompanying opening and / or closing movements in a motor-driven manner.

11. The cooking utensil (1) according to claim 1 or 2, characterized in that, The final position of the folding door (4) when it is unfolded or closed is held by the holding unit (42) of the cooking appliance (1), and / or the final position of the folding door (4) when it is folded or opened is held by the holding unit (42) of the cooking appliance (1).

12. The cooking utensil (1) according to claim 1 or 2, characterized in that, The second hinge device (13) is connected to the guide device (14) by a connection (44) that can be released without damage.

13. The cooking utensil (1) according to claim 12, characterized in that, The connecting part (44) has a pin (45) which is held in a pre-tightened manner by a spring (46), wherein the pin (45) can be released from its connected position without damage by pressing against the spring (46) so as to decouple the second hinge device (13) from the guide device (14).

14. The cooking utensil (1) according to claim 1 or 2, characterized in that, In the folded, open final position of the folding door (4), the interior angle between the upper first door segment (5) and the vertical line is greater than 90°.

15. The cooking utensil (1) according to claim 1 or 2, characterized in that, A storage compartment (9) for accessories is arranged in the housing (2) below the cooking chamber (33), the storage compartment being closed by a separate pivot door (10) of the cooking appliance (1).

16. The cooking utensil (1) according to claim 3, characterized in that, The first hinge device (12), the second hinge device (13) and the third hinge device (18) are arranged such that the first door segment (5) and the second door segment (6) are arranged relative to each other at an interior angle (α) between 1° and 10° at the folded end position.

17. The cooking utensil (1) according to claim 5, characterized in that, The seal (35) is constructed as a cavity seal or a waterproof strip seal.

18. The cooking utensil (1) according to claim 5, characterized in that, The seal (35) is arranged such that the gap between the lower edge (22a) of the inner window (22) of the upper first door segment (5) and the upper edge (28a) of the inner window (28) of the lower second door segment (6) is sealed in all fold positions between the first door segment (5) and the second door segment (6).

19. The cooking utensil (1) according to claim 11, characterized in that, The retaining unit (42) of the cooking appliance (1) is configured as a snap-fit ​​connection and / or a magnetic retainer.

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