Cooking appliance comprising a specific guide carriage for a retractable door

Abstract

The invention relates to a cooking appliance (1) comprising: a door (3) for closing a cooking chamber (17); and a housing (2) in which a stowage space (14) is formed into which the door (3) can be retracted, wherein at least one guide part (27) is arranged in the stowage space (14), on which guide part a guide track (28, 29) for a guide carriage (26) of the cooking appliance (1) is formed in order to guide the retracting movement of the door (3) into the stowage space (14), wherein the guide part (27) has a first guide track (28) that is at the top in the vertical direction (y) of the cooking appliance (1) and a separate second bottom guide track (29), and the guide carriage (26) has at least three separate guiding elements (30, 31, 32) which make contact with the guide tracks (28, 29) in order to guide the guide carriage (26), wherein at least one guiding element (30, 32) rests on the top guide track (28) from above and at least one further guiding element (31, 32) makes contact with the bottom guide track (29) from below.

Description

[0001] Cooking appliance with a specific guide carriage for a retractable door

[0002] The invention relates to a cooking appliance with a door for closing a cooking chamber and with a housing in which a storage space is formed into which the door can be lowered, wherein a guide part is arranged in the storage space, on which a guide track for a guide carriage of the cooking appliance is formed for guiding the lowering movement of the door into the storage space.

[0003] From DE 102018201 950 A1 and DE 102020208 891 A1, cooking appliances with retractable doors are known which are coupled to guide carriages, whereby the guide carriages are guided by rollers in guide slots.

[0004] Furthermore, a cooking appliance with a retractable door is known from DE 10 2015226 009 A1. There, the storage space for the door is also delimited by lateral vertical, in particular plate-like, side walls. Guide tracks for a link slide or a guide slide are also formed in these side walls, which represent technical components. In this embodiment, these guide tracks are formed far down in the technical components when viewed vertically of the cooking appliance and thus also in the vertical direction of these technical components. This allows a guide movement of the door to be carried out in a specific sequence. In particular, this embodiment provides for a front end and a rear end of this guide track to be formed practically immediately adjacent to a lower edge of this technical component. The door is thus arranged far down at the start and end of the movement.

[0005] This type of design limits the ability to lower relatively wide doors. This is because the installation space is limited not only in width but also in height.

[0006] The object of the present invention is to provide a cooking appliance with a retractable door, wherein the guidance of the guide carriage is improved. In this context, a concept is also to be enabled that improves flexibility with regard to the use of different doors.

[0007] This object is achieved by a cooking appliance having the features of claim 1.

[0008] One aspect of the invention relates to a cooking appliance with a door for closing a cooking chamber. The cooking appliance further comprises a housing in which a storage compartment is formed. The door can be lowered into this storage compartment. The storage compartment is a space separate from a cooking chamber of the cooking appliance. Food can be placed in the cooking chamber for preparation. A guide part is arranged in the storage compartment, on which a guide track for a guide carriage of the cooking appliance is formed for guiding the lowering movement of the door into the storage compartment.

[0009] The guide part has a first guide track, which is at the top as viewed in the vertical direction of the cooking appliance. The guide part also has a second guide track, which is separate from the first upper guide track and at the bottom as viewed in the vertical direction. The guide carriage has at least three separate guide elements which bear against the two guide tracks for guiding the guide carriage, in particular when the guide carriage is moved simultaneously. At least one guide element is arranged so as to rest on the upper guide track as viewed in the vertical direction from above. At least one further guide element is arranged so as to rest on the lower guide track as viewed in the vertical direction from below. Such a concept enables particularly advantageous and improved guidance of the door into or out of the storage space. In particular, it also enables a very compact guide system.This allows space to be saved vertically. This, in turn, means that the cooking chamber of the cooking appliance can be designed to be larger in height, even though the dimensions of the cooking appliance can then remain unchanged in height. Furthermore, a guide carriage of this type, which is coupled to guide elements on both sides from above and from below with two guide tracks, allows the guide movement to be carried out with less play. This means that the guide carriage can be guided more precisely because tolerances are minimized. In this context, forces and force peaks that act on the guide carriage and guide elements when the door is moved into or out of the storage space can be better absorbed.Due to the specific number and positional arrangement of the guide elements and the specific coupling with the aforementioned guideways, the guide part can also be designed lower, particularly in the height direction.

[0010] In one embodiment, at least one guide element can be a roller. It is also possible for all guide elements to be formed by rollers. This enables particularly smooth and even movement of the guide carriage along the guideways.

[0011] In another embodiment, at least one guide element can be a plain bearing. It is possible for all guide elements to be designed as plain bearings. In such an embodiment, the guide elements can be designed to be very space-saving and compact. This also minimizes the structure of the guide carriage, particularly in the vertical direction. A plain bearing is arranged on the guide carriage, in particular, without its own ability to move relative to it.

[0012] In one embodiment, two guide elements rest on one of the two guide tracks. The at least one further guide element rests on the other guide track. It can be provided that this further guide element is positioned between the two other guide elements when viewed in the depth direction of the cooking appliance. By offsetting the three guide elements in this way in a specific spatial direction, a particularly mechanically stable fit on both guide tracks is achieved. A tilting movement of the guide carriage about an axis oriented in the width direction of the cooking appliance can thus be better prevented. This also allows the contact of the guide elements on the respective guide tracks to be designed more evenly. This also results in a more jam-free and spreading-free movement of the guide carriage on the guide part.In one embodiment, two guide elements rest on the upper guide track from above. The third additional guide element rests on the lower guide track from below.

[0013] In another embodiment, one guide element is adjacent to the upper guide track from above and two further guide elements are adjacent to the lower guide track from below.

[0014] In another embodiment, four separate guide elements may be arranged on the guide carriage. In such an embodiment, two guide elements preferably rest on the upper guide track from above, and two further guide elements rest on the lower guide track from below.

[0015] In such an embodiment, two front guide elements, one of which rests on the upper guide track and the other on the lower guide track, can be arranged at the same depth in the depth direction. Additionally or instead of this, two further rear guide elements, one of which rests on the upper guide track from above and the other on the lower guide track from below, can be arranged at the same depth.

[0016] In one embodiment, the lower guide track is linear. Specifically, it extends horizontally in the depth direction of the cooking appliance. Such a linear guide track requires virtually no space vertically, as it has no curve or curved section. This further improves a vertically space-saving concept.

[0017] In one embodiment, the upper guide track is linear. In particular, it extends horizontally in the depth direction of the cooking appliance. This also allows advantages with regard to a compact design in the height direction to be achieved. This also advantageously contributes to the fact that the storage space can be reduced in height and the cooking space can thus be increased. In one embodiment, the guide part can be rod-shaped. Its longitudinal axis can extend in the depth direction of the cooking appliance. In such an embodiment, an upper side, in particular a ceiling wall of this guide part, can form the upper guide track. The underside or a base side of the guide part can form the lower guide track. A guide part that is rod-shaped or beam-shaped can be solid.Especially when the guide element is designed as a rod or beam, it has a very low overall height. This also ensures that the guide elements of the guide carriage are only spaced vertically such that this rod-like guide element is positioned between them. This also supports the compact design of this guide system.

[0018] In principle, it can be provided that, viewed in the vertical direction, the guide part with its guide tracks is arranged between the at least one upper guide element and the at least one lower guide element. Such a sandwich structure with a preferably single guide part for this guide carriage, which is located between these guide elements, particularly supports the aforementioned advantages with regard to compact design, mechanical stability, and smooth guidance.

[0019] However, it is also possible for a guide part to be constructed in two parts. In this context, a first guide part element can comprise the upper guide track. A second guide part element can comprise the lower guide track. In such an embodiment, the guide parts can also be arranged at a distance from one another, viewed vertically.

[0020] In one embodiment, the guide carriage is coupled to the door by a hinge device of the cooking appliance. This hinge device supports the pivoting movement of the door when moving into the storage compartment and when moving out of the storage compartment, so that this pivoting movement can be carried out independently of the sliding movement of the guide carriage. In particular, the hinge device, viewed as a whole, can be arranged stationary in the housing of the cooking appliance. In particular, the arrangement can be formed on a base assembly of the housing. Preferably, the hinge device has its own guide components, such as the rollers. In one embodiment, these can engage in guide slots formed on the side of the door, such as guide grooves in particular.This allows the door, in particular the door leaf, to be moved relative to the hinge device and is guided in its movement by the engaging guide elements of the hinge device. It is also possible for the door, in particular the door leaf, to have a coupling device in a lower portion. This coupling device is intended to couple to the guide carriage. In particular, this articulated coupling is designed to be permanent, so that the door leaf can be moved, in particular also pivoted, relative to the guide carriage. In particular, it is provided that this coupling between the coupling device and the guide carriage is designed to be articulated.

[0021] In one embodiment, at least one guide element, viewed as a whole, is mounted on a support of the guide carriage in a positionally adjustable manner. This allows the guide element to be in constant contact with the guideway, particularly advantageously. Tolerances can then be compensated for by changing the position of the guide element on the support. In one embodiment, the at least one guide element can be arranged on the support mounted with a spring. The positional change is thus automatically enabled by the spring force acting on the guide element. This creates a particularly advantageous, robust, and, with regard to positional changes, very fast system.

[0022] In one embodiment, at least one guide track is designed as a groove. This allows for a boundary of the guide track to be formed perpendicular to the longitudinal axis of the guide track. This limits and, in particular, prevents unwanted movement of a guide element perpendicular to the longitudinal axis of the guide track. This achieves particularly linear guidance of the guide element in the guide track, particularly in the depth direction.

[0023] In one embodiment, at least one guide track is designed to have a hump-like cross-section and thus perpendicular to its longitudinal axis. In particular, it can be convexly curved or trapezoidal in shape. Such a guide track shape also prevents undesired slippage of the guide element relative to the guide track, viewed in the width direction. Such a guide track shape also achieves particularly straight guidance of the guide elements along the guide track.

[0024] In one embodiment, a running surface of a guide element has a groove-like shape into which the hump-like region of the guide track engages. This complementary shape of the running surface of the guide element on the one hand and the guide track on the other hand significantly supports the aforementioned advantages.

[0025] In one embodiment, the guide track is arranged at a distance of between 20 mm and 26 mm from a base of the cooking appliance housing, viewed in the vertical direction of the cooking appliance. In addition or instead of this, in one embodiment the lower guide track is arranged at a distance of between 16 mm and 20 mm from a base of the cooking appliance housing, viewed in the vertical direction of the cooking appliance. The upper guide track is always further up than the lower guide track. By positioning the guide tracks as far down as possible, yet unrestricted movement of the guide elements on the guide tracks is achieved. The door also does not impair the movement in and out of the storage space. Nevertheless, it is also advantageously supported by the fact that the storage space can be reduced in height and thus the cooking space can be increased in height.

[0026] Preferably, viewed in the width direction of the cooking appliance, a guide carriage and a guide part are formed at opposite ends. The two guide carriages and / or the two guide parts can be of identical design. In particular, the above-mentioned explanations and exemplary embodiments then apply to both guide carriages. The above-mentioned coupling device can then also be coupled to both guide carriages, in particular to a connecting rod that connects the two guide carriages. The guide carriages formed on opposite sides are preferably connected to a connecting rod so that their position relative to one another can be maintained and no tilting or twisting occurs relative to one another during movement. This positional coupling between the guide carriages enables smooth and even movement along the guide tracks on the guide parts.The door is advantageously connected to these guide carriages at its lower end, in particular rotatably connected thereto. The guide carriages are separate components from the hinge devices. The guide carriages are preferably connected to the door in a movement-coupled manner, with an axis of rotation being formed at the connection point, about which axis the door can then rotate relative to a guide carriage. In contrast, the hinge device with the rollers already explained above not only enables a relative movement with regard to rotation to one another, but also a relative sliding movement between the door and a hinge arm is provided by the guide grooves or guide slots in the door, which are also formed on the side edges and have already been mentioned.

[0027] In an advantageous embodiment, the storage space has a clear width of less than or equal to 45 mm, in particular between 40 mm and 44 mm, in the vertical direction, at least at one entrance. Preferably, this clear width, viewed in the vertical direction, extends over at least 50 percent, preferably at least 80 percent, in particular at least 90 percent, of the depth of the storage space measured in the depth direction.

[0028] This design makes the storage space particularly compact, allowing for maximum cooking space. If the cooking appliance's casing is of standard dimensions, this compact storage space can maximize the cooking space. However, it still allows for a wide door to be inserted and removed from the storage space.

[0029] In an advantageous embodiment, the door has a thickness of between 35 mm and 45 mm, in particular between 38 mm and 42 mm, preferably 40 mm. With such a configuration, it is then also possible for the door to have a multi-pane package with at least three panes, wherein a front pane, an inner pane and at least one intermediate pane can be provided. The panes are oriented parallel to one another and represent plate-like elements, in particular made of real glass. Especially with multiple door panes, in particular at least four such separate panes, the cooking appliance can also be designed with a pyrolysis function.

[0030] Especially with such a design, in which the door has the aforementioned advantageous thickness and the storage space has the aforementioned advantageous height, whereby the thickness is naturally always smaller than the height of the storage space, a relatively thick door can be retracted into a storage space that is then only slightly higher. The aforementioned mechanism then enables the door to be retracted or extended accordingly, even though the storage space is only slightly higher than the thickness of the door.In particular, this is achieved in that the door does not retract into the storage space or only retracts to a minor extent during the pivoting movement, in particular from the closed position into a horizontal open position, and the main retraction movement takes place starting from the horizontal open position, so that the linear movement of the door into the storage space essentially only takes place after the pivoting movement.

[0031] In an advantageous embodiment, in addition to or instead of this, it can be provided that the door has a width of between 530 mm and 545 mm, in particular between 535 mm and 540 mm, on its outer side viewed in the width direction. Such a wide door allows the gap dimensions to be improved. In particular, in this context, the gap dimensions to adjacent components such as front strips, which are designed as visible components or external parts of the cooking appliance on the front, can be improved. In particular, these gap dimensions can be set relatively small. In this context, the above-mentioned design of the door with its specific width dimension can achieve a uniform front appearance between cooking appliance variants, on the one hand with only a flap door, and on the other hand with the retractable door explained above.When the doors are closed, a uniform appearance can be achieved for both cooking appliance variants. The terms "top," "bottom," "front," "back," "horizontal," "vertical," "depth," "width," "height," etc., indicate the positions and orientations that would be expected when the appliance is used and positioned as intended, and when viewed by an observer standing in front of the appliance and looking in its direction.

[0032] Further features of the invention emerge from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respective combination specified, but also in other combinations without departing from the scope of the invention. Thus, embodiments are to be regarded as encompassed and disclosed by the invention that are not explicitly shown and explained in the figures, but which emerge and can be produced by separate combinations of features from the explained embodiments. Embodiments and combinations of features are also to be regarded as disclosed that therefore do not have all the features of an originally formulated independent claim.Furthermore, embodiments and combinations of features are to be regarded as disclosed, in particular by the embodiments set out above, which go beyond or deviate from the combinations of features set out in the reliances of the claims.

[0033] Embodiments of the invention are explained in more detail below with reference to schematic drawings. They show:

[0034] Fig. 1 is a perspective view of an embodiment of a cooking appliance according to the invention;

[0035] Fig. 2 is a schematic vertical sectional view through the cooking appliance according to Fig. 1;

[0036] Fig. 3 is a schematic side view of a portion of the door of the cooking appliance according to Fig. 1 with a specific embodiment of a guide carriage arranged on a guide part of the cooking appliance;

[0037] Fig. 4 is a view according to Fig. 3 relating to an embodiment different from Fig. 3; and

[0038] Fig. 5a to 5d show exemplary sectional views through embodiments of shapes of rollers of the guide carriage and shapes of guideways.

[0039] In the figures, identical or functionally identical elements are provided with the same reference symbols.

[0040] Fig. 1 shows a schematic perspective view of a household appliance 1 designed as an oven. The household appliance 1 has a housing 2 in which a cooking chamber is defined by a muffle (not shown). Food can be placed in the cooking chamber for preparation. The cooking chamber can be closed at the front by a door 3, which is shown in the closed end position in Fig. 1. A handle 4 is formed on the front of the door 3.

[0041] In addition, the oven has an operating device 5, which in terms of position and display has, merely as an example, a display unit 6 and operating elements 7 and 8.

[0042] The housing 2 may have walls 9, 10, 11 and 12.

[0043] The door 3 can be pushed or sunk into the housing 2 in its lower region 13, which is the case when the door 3 is moved from the closed end position shown in Fig. 1 into the fully open and sunk end position. The door 3 is then arranged so as to be sunk into a free space in the housing 2, whereby a storage space 14 is formed through this free space, arranged below the cooking chamber and separated from it by a corresponding partition wall. The door 3 is connected to door hinges shown and labeled as examples, which are examples of hinge devices 15 and 16, and can be pivoted via these hinges and can be retracted and extended into the aforementioned storage space 14.

[0044] Fig. 2 shows a vertical sectional view (section plane yz-plane) of the cooking appliance 1. Here, the cooking chamber 17 can be seen, which is delimited by the aforementioned muffle.

[0045] It can be seen here that the storage space 14 has a clear width w which is measured in the height direction (y-direction) and which is in particular between 40 mm and 44 mm, preferably between 42 mm and 43 mm.

[0046] A thickness d (Fig. 2) of the door 3 is preferably between 38 mm and 42 mm, in particular 40 mm.

[0047] A width b of the door 3 measured in the width direction (x-direction), as shown in Fig. 1, is preferably between 530 mm and 545 mm, in particular between 535 mm and 540 mm.

[0048] Furthermore, a front pane 3a and an inner pane 3b and an intermediate pane 3c of the door 3 are also shown.

[0049] As shown in Fig. 3, which represents a view in the negative x-direction, the hinge device 15 can have a hinge housing 18. This, viewed as a whole, can be arranged stationary in the housing 2. The hinge device 15 also has a bearing unit 19 having a bearing bracket 20. At least one guide element 21, here a roller, is rotatably mounted on the bearing bracket 20. This guide element 21 engages in a groove-like guide slot 22, which is formed on a side edge 23 of the door 3 and extends vertically when the door 3 is closed. The guide element 21 is thus guided in this guide slot 22, which is open laterally to the outside when viewed in the width direction. The guide slot 22 is formed in particular on a door leaf 24 of the door 3. The door leaf 24 is the plate-like front element of the door 3.

[0050] The door 3 further comprises a coupling device 25. This coupling device 25 couples the door leaf 24 to at least one guide carriage 26 of the door 3. In particular, a guide carriage 26 is arranged on each of the opposite sides in the width direction. In particular, an articulated connection is formed here, so that the door leaf 3, when coupled to the guide carriage 26, can pivot relative to the door leaf, in particular about an axis oriented in the width direction (x-direction).

[0051] The cooking appliance 1 further comprises a guide part 27. The guide part 27 is arranged in the storage space 14. In particular, a guide part 27 is arranged on opposite sides in the width direction.

[0052] The guide carriage 26 is guided on this guide part 27. The guide part 27 can be rod-like or beam-like. It extends with its longitudinal axis in the depth direction (z-direction) of the cooking appliance 1. It is arranged in particular on a side wall that laterally delimits the storage space 14. In the exemplary embodiment shown, the guide part 27 has an upper guide track 28, viewed in the vertical direction (y-direction) of the cooking appliance 1. In one exemplary embodiment, this upper guide track 28 is rectilinear, in particular over at least the section along which the guide carriage 26 can move, in particular with a guide element. In addition, the guide part 27 has a lower guide track 29, viewed in the vertical direction. This guide track is arranged below the upper guide track 28.In one embodiment, the lower guide track 29 is designed to be rectilinear, in particular over at least that section over which the guide carriage 26 with guide elements can move.

[0053] The two guideways 28 and 29 are in particular oriented parallel to each other.

[0054] The guide carriage 26 shown here is the right-hand guide carriage when viewed from the front of the cooking appliance 1. In one exemplary embodiment, the cooking appliance 1 has a second guide carriage 26. This can preferably be constructed similarly to the guide carriage 26. It is then a left-hand guide carriage when viewed from the front of the cooking appliance 1. If two such guide carriages 26 are present, they can be connected by a connecting rod (not shown) that extends in the width direction.

[0055] In one exemplary embodiment, the guide carriage 26 has at least three separate guide elements 30, 31, and 32. In the exemplary embodiment in Fig. 3, only these three guide elements 30 to 32 are present, which are arranged on the illustrated guide carriage 26. In the exemplary embodiment, these guide elements 30 to 32 are each designed as a roller.

[0056] They are thus rotatably mounted on a support 33 of the guide carriage 26. As can be seen in Fig. 3, the guide element 30 rests, in particular with a running surface 30a, from above on the upper guide track 28. In the exemplary embodiment, the guide element 31 rests with a running surface 31a from below on the lower guide track 29. In the exemplary embodiment, it is further provided that a running surface 32a of the guide element 32 also rests from below on the lower guide track 29. In the exemplary embodiment shown here, two guide elements 31 and 32 are arranged so as to rest from below on the lower guide track 29, whereas only a single guide element 30 rests from above on the upper guide track 28. As can be seen in the exemplary embodiment shown in Fig. 3, these guide elements 30 to 32 are arranged offset from one another in the depth direction.

[0057] In particular, in the embodiment shown here, the upper guide element 30 is arranged, viewed in the depth direction, in particular centrally, between the lower guide elements 31 and 32. These guide elements 30 to 32 guide the guide carriage 26 on this guide part 27. The guide part 27 with its guide tracks 28 and 29 is arranged, viewed in the height direction, between these three guide elements 30 to 32. In particular, all running surfaces 30a, 31a, and 32a bear simultaneously against the respective associated guide track 28 or 29.

[0058] It is also possible for at least one guide element 30, 31, 32, viewed as a whole, to be mounted on the support 33 in a positionally adjustable manner. In particular, at least one guide element 30, 31, 32 can be arranged on the support 33 in a spring-loaded manner, viewed in the vertical direction.

[0059] The upper guide track 28 is arranged in particular at a distance a2 between 20 mm and 26 mm from a bottom 2a of the housing 2 of the cooking appliance 1 and / or the lower guide track 29 is arranged in particular at a distance a1 between 16 mm and 20 mm from a bottom 2a of the housing 2 of the cooking appliance 1.

[0060] Fig. 4 shows the illustration according to Fig. 3, but here an embodiment is shown which differs with regard to the design of the guide carriage 26. In the embodiment shown in Fig. 4, two guide elements 30 and 31 rest with their running surfaces 30a and 31a on the upper guide track 28. Here, only a further guide element 32 is arranged with its running surface 32a resting on the lower guide track 29. In the embodiments in Fig. 3 and Fig. 4, the axes of rotation of the guide elements 30 to 32, which are designed as rollers here, are oriented horizontally, in particular in the width direction, i.e. here oriented perpendicular to the plane of the figure.

[0061] The interface between the door leaf 24 and the guide carriage 26, which is formed here, for example, by the coupling device 25, can also be designed with a bearing bush. A detachable decoupling between the door leaf 24 and the guide carriage 26 can also be realized, in particular via the coupling device 25. A screw connection or a plug connection is possible here.

[0062] In all embodiments, the guide elements 30 to 32 can be designed identically. This means that in an embodiment in which the guide elements 30 to 32 are rollers, the diameters of these rollers can be the same. However, it is also possible for the at least one upper roller to be designed differently, in particular with a different diameter, than at least one lower roller.

[0063] Fig. 5a to Fig. 5d show exemplary embodiments of shapes for running surfaces of guide elements and shapes of guide tracks. The sectional views shown here are not intended to be exhaustive, but merely represent some possible examples. For example, Fig. 5a shows a guide element 30 with its running surface 30a as an example. The guide track 28 shown here as an example is, viewed in the width direction, preferably delimited laterally by boundary walls 33 and 34. As a result, in this cross-sectional view, which is formed perpendicular to the longitudinal axis of the guide track 28, a groove-like shape of the guide track 28 is formed. An axis of rotation 30b, around which a guide element 30 designed as a roller can rotate, is also shown. In this exemplary embodiment, the running surface 30 is rectilinear in this cross-sectional view.

[0064] Fig. 5b shows a representation corresponding to Fig. 5a, wherein the running surface 30a is groove-like. In particular, it is concavely curved. In the exemplary embodiment shown here, the guide track 28 is formed like a hump. In particular, it has a convexly curved dome. As a result, the running surface 30a sits with its concave shape on this convexly curved guide track 28. Here, too, slipping or displacement of the guide element 30 relative to the guide track 28, in particular in the width direction, is avoided or significantly limited. Fig. 5c shows an exemplary embodiment similar to Fig. 5b. The groove-like shape of the running surface 30a here differs from the exemplary embodiment in Fig. 5b. This groove-like shape is notch-like in cross-section, in particular V-notch-like, so that no continuous concave curvature region is formed.5d shows another embodiment.

[0065] In this case, the running surface 30a is also groove-like. However, the contour here is angular. A trapezoidal cross-sectional shape of the guide track 28 is preferably adapted to this. Here, too, a corresponding interlocking is realized, as shown in Fig. 5d.

[0066] 1 oven

[0067] 2 housings

[0068] 2a Floor

[0069] 3 Door

[0070] 3a Windscreen

[0071] 3b inner pane

[0072] 3c Intermediate disc

[0073] 4 handle

[0074] 5 Control device

[0075] 6 Display unit

[0076] 7 Control element

[0077] 8 Control element

[0078] 9 Wall

[0079] 10 Wall

[0080] 11 Wall

[0081] 12 Wall

[0082] 13 Area

[0083] 14 storage space

[0084] 15 Hinge device

[0085] 16 Hinge device

[0086] 17 Cooking chamber

[0087] 18 hinge housing

[0088] 19 storage unit

[0089] 20 bearing brackets

[0090] 21 Guide element

[0091] 22 Guide backdrop

[0092] 23 margin

[0093] 24 door leaf

[0094] 25 Coupling device

[0095] 26 guide carriages

[0096] 27 Guide part 28 Guide track

[0097] 29 Guideway

[0098] 30 guide element

[0099] 30a tread

[0100] 30b axis of rotation

[0101] 31 Guide element

[0102] 31a Running surface

[0103] 32 guide element

[0104] 32a running surface

[0105] 33 carriers

[0106] A Longitudinal axis b Width d Thickness w Width

Claims

Patent claims 1. Cooking appliance (1) with a door (3) for closing a cooking chamber (17), with a housing (2) in which a storage space (14) is formed, into which the door (3) can be lowered, wherein in the storage space (14) at least one guide part (27) is arranged, on which a guide track (28, 29) for a guide carriage (26) of the cooking appliance (1) is designed to guide the lowering movement of the door (3) into the storage space (14), characterized in that the guide part (27) has a first, in the vertical direction (y) of the cooking appliance (1), upper guide track (28) and a separate lower second guide track (29), and the guide carriage (26) has at least three separate guide elements (30, 31, 32) which bear against the guide tracks (28, 29) for guiding the guide carriage (26), wherein at least one guide element (30, 32) rests from above on the upper guide track (28) and at least one further guide element (31, 32) bears from below on the lower guide track (29).

2. Cooking appliance (1) according to claim 1, characterized in that at least one guide element (30, 31, 32) is a roller.

3. Cooking appliance (1) according to claim 1 or 2, characterized in that at least one guide element (30, 31, 32) is a plain bearing.

4. Cooking appliance (1) according to one of the preceding claims, characterized in that two guide elements (30, 31, 32) rest on one of the two guide tracks (28, 29) and the at least one further guide element (30, 31, 32) rests on the other guide track (29), wherein the further guide element (30, 31, 32) is positioned between the two other guide elements (30, 31, 32) viewed in the depth direction (z) of the cooking appliance (1).

5. Cooking appliance (1) according to one of the preceding claims, characterized in that the lower guide track (29) is designed to be rectilinear, in particular extending horizontally in the depth direction (z) of the cooking appliance (1).

6. Cooking appliance (1) according to one of the preceding claims, characterized in that the upper guide track (28) is designed to be rectilinear, in particular extending horizontally in the depth direction (z) of the cooking appliance (1).

7. Cooking appliance (1) according to one of the preceding claims, characterized in that the guide carriage (26) is coupled to a door leaf (24) of the door () by a coupling device (25).

8. Cooking appliance (1) according to claim 7, characterized in that the coupling between the coupling device (25) and the guide carriage (26) is articulated.

9. Cooking appliance (1) according to one of the preceding claims, characterized in that at least one guide element (30, 31, 32) is mounted as a whole on a support (33) of the guide carriage (26) in a positionally adjustable manner.

10. Cooking appliance (1) according to claim 9, characterized in that at least one guide element (30, 31, 32) is arranged on the support (33) in an adjustable and / or spring-loaded manner.

11. Cooking appliance (1) according to one of the preceding claims, characterized in that at least one guide track (28, 29) is formed in a groove-like cross section.

12. Cooking appliance (1) according to one of the preceding claims, characterized in that at least one guide track (28, 29) is formed in a hump-like cross-section, in particular is convexly curved or trapezoidal.

13. Cooking appliance (1) according to claim 12, characterized in that a running surface (30a, 31a, 32a) of a guide element (30, 31, 32) has a groove-like shape into which the hump-like region of the guide track (28, 29) engages.

14. Cooking appliance (1) according to one of the preceding claims, characterized in that the storage space (14) in the height direction (y) at least at one entrance has a clear width (w) of less than or equal to 45 mm, in particular between 40 mm and 44 mm, and / or the door (3) has a thickness (d) between 35 mm and 45 mm, in particular between 38 mm and 42 mm, and / or the door (3), in particular a front pane (3a), has a width (b) between 530 mm and 545 mm, in particular between 535 mm and 540 mm, on its outer side.

15. Cooking appliance (1) according to one of the preceding claims, characterized in that the upper guide track (28) is arranged at a distance (a2) between 20 mm and 26 mm from a base (2a) of the housing (2) of the cooking appliance (1) and / or the lower guide track () is arranged at a distance (a1) between 16 mm and 20 mm from a base (2a) of the housing (2) of the cooking appliance (1).

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