Pull-out guide, preferably for cooking appliances, especially preferably for ovens

Abstract

The invention relates to a pull-out guide (16), preferably for cooking appliances (1), particularly preferably for ovens (1), comprising a first rail element (16a) configured to be fixedly connected to a side wall (12a), preferably of a cooking chamber (12) of the cooking appliance (1), and a second rail element (16b) movably connected to the first rail element (16a) along the longitudinal axis (X), wherein the second rail element (16b) is preferably configured to receive a cooking vessel, preferably a baking tray, in a removable manner, wherein the first rail element (16a) has a fixed projection (16aa) and the second rail element (16b) has a spring-loaded roller (16bb), or vice versa, wherein the fixed projection (16aa) and the spring-loaded roller (16bb) are arranged and configured to create a releasable locking connection with each other.if the second rail element (16b) is fully extended relative to the first rail element (16a) along the longitudinal axis (X) relative to the side wall (12a), preferably of the cooking chamber (12) of the cooking appliance (1).

Description

[0001] The invention relates to a drawer guide, preferably for cooking appliances, particularly preferably for ovens.

[0002] Cooking appliances are known which have a stationary cooking chamber integrated with the appliance, in which the food is placed in or on a cooking dish and cooked with the cooking chamber closed. Such a cooking appliance can be, for example, a conventional oven, a steamer, a combination oven / steamer, a combination oven / microwave, and the like. Such stationary cooking appliances typically have a height of approximately 45 cm or 60 cm along the vertical axis, at least in Germany.

[0003] Such cooking appliances with a fixed cooking chamber have in common that they feature an outer casing, which essentially encloses the cooking appliance and protects its individual components and elements, while also making them easily accessible. Inside the cooking appliance, an interior space is formed, which constitutes the cooking chamber and is essentially enclosed by an inner casing, also known as the cooking chamber muffle or muffle. A cavity is formed between the inner and outer casings, in which functional elements of the cooking appliance, such as a control unit, an electrical power supply, and other components necessary for the intended use of the cooking appliance, can be located. From the front, i.e., viewed from the user's perspective, the outer casing...A cover in the form of furniture material or in the form of a control panel and the like, together with the inner housing, closes off the housing space, so that the housing space is not accessible to the user.

[0004] The interior of the cooking appliance features a front-facing access opening through which the user can enter and arrange cooking utensils within the cooking chamber. This opening also allows for the removal of utensils after cooking. The access opening can be opened by means of a locking element, such as a side-hinged door, a downward-hinged flap, or similar device. This allows the user to access the interior of the cooking appliance as described above, or to close the interior and complete the cooking process. Such a locking element can be solid or have a viewing window to allow the user to see inside the closed interior of the cooking appliance.

[0005] Such cooking appliances with a fixed cooking chamber are typically designed as built-in appliances or kitchen units. This allows them to be installed in a space-saving manner, at a user-friendly height along the vertical axis of kitchen furniture, such as built-in cabinets. Their outer casing is fixed in place, and their closing element, and optionally their front panel (see above), are flush with the surfaces of other cooking appliances, drawers, doors, and the like, facing the user. This can improve the visual appearance for the user. However, such cooking appliances can also be designed as individual, freestanding units, which can be placed and operated, particularly on a worktop within a kitchen unit. This can simplify usage, purchase, and disposal.

[0006] Such cooking appliances with a heated cooking chamber typically have so-called support racks on the inside of both side walls of the cooking chamber. These racks are symmetrical and usually removable for cleaning. In the simplest case, the support racks have narrow slots running parallel to each other along their length or depth. The edges of a baking tray or similar cooking vessel can be slid into these slots and pulled out again to position the baking tray at the appropriate height or distance from the floor of the cooking chamber for the cooking process and then remove it afterwards.

[0007] To make this more convenient, it is now common practice to attach symmetrical telescopic rails to the two oven racks. This allows the user to pull the front pair of rail sections out of the oven along their longitudinal axis, with both rail sections typically extending completely beyond the front of the oven. The two front rail sections are connected to a pair of rear rail sections of the telescopic rail pair by a pair of middle rail sections, which are fixed to the respective oven racks and are usually removable for cleaning. This allows the user to easily place a baking tray or similar cookware onto the extended telescopic rails from above.Place its front rail elements on the baking tray and then slide it into the cooking chamber along the longitudinal axis using the telescopic rails. After the cooking process is complete, pull the tray forward again and remove it from the telescopic rails.

[0008] As already mentioned, the wire racks are usually also designed to be removable for cleaning purposes. Typically, the wire racks are held against the two side walls of the cooking chamber, although wire racks are also known that are held along the longitudinal axis at the rear end of the cooking chamber, viewed from the user's perspective or relative to the access opening, against the back wall of the cooking chamber.

[0009] In any case, the wire racks, as the name suggests, are constructed from thin rods or wires, usually made of metal, in a grid-like structure. Typically, when the wire rack is mounted, a vertical front wire faces the user or the access opening, and a vertical rear wire runs parallel to this, facing the back wall of the cooking chamber. The two vertical wires are firmly connected to each other by several horizontal wires of the wire rack. This connection is usually made by soldering or welding. The horizontal wires run parallel to each other along the vertical axis, equally spaced, and at right angles to the two vertical wires. These horizontal wires can also be referred to as planar wires.The ends of the two vertical wires can be bent at right angles to the respective side walls of the cooking chamber and designed as holders to be inserted into openings in the respective side walls of the cooking chamber and held securely in place. Alternatively, the ends of horizontal wires can be used for this purpose. The two wire racks of a cooking appliance are mirror images of each other and are arranged within the cooking chamber.

[0010] A disadvantage of the well-known telescopic drawer slides, also called telescopic extensions, is that while their smooth movement in translation is actually desirable in order to allow the user to move the drawer slides back and forth with little effort, either alone or with cooking utensils attached, this smooth movement also means that the drawer slides can be moved unintentionally relatively easily by contact with the cooking utensils and the like.This can lead to the unintentional retraction of the drawer slides, for example, if cooked food is removed from a pulled-out tray as a cooking vessel, since contact with the cooking vessel, for example with a fork, kitchen tongs or the like, can be enough, with a relatively high degree of smooth movement of the drawer slides, to push the cooking vessel back slightly into the cooking chamber, which can be an obstacle for the user when removing the cooked food.

[0011] Accordingly, it is desirable that the fully extended drawer slides, and thus also the cookware moving along them, can be locked into this position. This ensures that they maintain their position with light touches, but can be released from the locked position with slightly more force by the user and then pushed back into the cooking chamber as usual, ideally smoothly. This also applies to other applications of such drawer slides, for example, in other kitchen appliances, household appliances, or even furniture.

[0012] DE 10 2013 102 948 B4 describes a drawer slide, in particular for household appliances or furniture, with at least three rails mounted so as to be movable relative to each other, wherein one rail can be fixed to a body and one rail can be connected to a sliding element, and a locking mechanism to lock a first rail in a predetermined position relative to a second rail, wherein a locking mechanism is provided to lock the second rail relative to a third rail in the predetermined position against movement, wherein the locking mechanism has a locking element that engages the second or third rail, wherein the locking element is formed on a flexible spring bar which has an actuating section on which the unlocking element can engage and a stop is provided on the flexible spring bar to limit the maximum deflection.

[0013] A general disadvantage of these known drawer slides is that the effectiveness of the locking or latching mechanism depends on its lubrication and cleanliness. Therefore, the effectiveness of the locking or latching mechanism can vary significantly depending on whether the contacting surfaces or points are dry and clean (for example, in oven cavities due to prior pyrolysis for self-cleaning) or damp or greasy (which can occur in the cooking chamber of a cooking appliance due to the cooking process and the resulting moisture or typically greasy fumes).

[0014] This can be inconvenient for the user, as they have to adjust to a different operating principle each time they use the telescopic slides or drawer runners – i.e., a locking or latching mechanism that is sometimes easy and sometimes difficult to release. In some cases, the locked position may not be held securely enough, allowing the drawer runners to move when touched, which is precisely what should be prevented. If the locking or latching mechanism is designed to be so tight that it holds reliably even when lubricated with grease, then the locked position may be too difficult for the user to engage and release when the mechanism is clean, which can also be perceived as annoying.

[0015] Another disadvantage is that the drawer slides can require a comparatively large amount of installation space due to such locking or latching mechanisms, which can be a hindrance in all applications, whether oven compartment or drawers.

[0016] A further disadvantage is that the elements or components of such locking or locking mechanisms that are in contact with each other are usually made of metal, and therefore abrasion or wear can occur during use, which can impair the functionality.

[0017] A particular disadvantage of the drawer slide design of DE 10 2013 102 948 B4 is that a locking mechanism is required for the first and second rails, and an additional locking mechanism is required for the second and third rails to lock the third rail in the predetermined position relative to the first rail against movement. This increases the complexity accordingly.

[0018] The invention addresses the problem of creating an extension guide to improve the possibilities for locking or latching a fully extended position along the translational movement. In particular, this should be achieved more simply, compactly, durably, independently of cleaning conditions, and / or more cost-effectively than previously known designs. At the very least, an alternative to known extension guides of this kind should be provided.

[0019] The invention thus relates to a drawer slide, preferably for cooking appliances and particularly preferably for ovens, which can be designed as a telescopic rail. The drawer slide comprises a first rail element, which is designed to be fixedly connected to a side wall, preferably of a cooking chamber of the cooking appliance, and a second rail element, which is movably connected to the first rail element along its longitudinal axis. The second rail element is preferably designed to allow the removable storage of a cooking vessel, preferably a baking tray. This allows a drawer slide or telescopic rail to be implemented in at least two parts, and preferably at least, and particularly preferably, in exactly three parts, as is already known in principle.

[0020] The first rail element has a fixed projection and the second rail element has a spring-loaded roller, or vice versa. Furthermore, the fixed projection and the spring-loaded roller are arranged and designed to create a releasable locking connection when the second rail element is fully extended relative to the first rail element along its longitudinal axis opposite the side wall, preferably of the cooking chamber of the cooking appliance.

[0021] According to the invention, a fixed projection on one side of the contact and a spring-loaded roller on the other side of the contact are provided as a spring-loaded contact to overcome the resistance in order to detachably lock the second rail element relative to the first rail element in the fully extended position. Due to the spring-loaded design and mounting of the roller, the roller can be pushed away from the projection in a spring-loaded manner to engage and disengage the locking position.

[0022] Due to the use of a rotatably mounted roller, the roller can roll on the projection upon contact, or be rotated or rolled by the projection. This reduces friction and thus wear on the contact surfaces, thereby extending their lifespan. Furthermore, this rolling contact can occur relatively consistently, or as consistently as possible, regardless of the cleanliness of the contact surfaces. This ensures that the user can always engage and disengage the locking mechanism with a comparable force, particularly independent of the cleanliness or contamination of the contact surfaces.

[0023] According to one aspect of the invention, the first rail element has the fixed projection and the second rail element has the spring-mounted roller. Thus, precisely this arrangement of the projection and the roller can be implemented, which may be the variant requiring less installation space.

[0024] According to another aspect of the invention, the fixed projection and the spring-mounted roller have different materials, preferably consisting of different materials.

[0025] This can also promote the reduction of wear and tear and / or independence from the cleaning condition of the contact partners.

[0026] According to another aspect of the invention, the fixed projection is made of metal and the spring-mounted roller is made of ceramic.

[0027] This can represent a concrete and advantageous way to implement the previously mentioned corresponding properties and benefits.

[0028] According to another aspect of the invention, the roller is resiliently mounted by means of a spring element, wherein the spring element rotatably connects the roller to the second rail element.

[0029] This could represent a concrete way of implementing the design to create a spring-mounted role.

[0030] According to another aspect of the invention, the spring element is a spring steel or a spring wire.

[0031] This can represent concrete implementation possibilities for using a spring element for the spring-loaded mounting of the roller.

[0032] According to a further aspect of the invention, the extension guide has a third rail element which movably connects the first rail element to the second rail element along the longitudinal axis.

[0033] This can make it possible to design the extension guide in at least three parts, in order to improve or increase the possibilities of force or load transmission from the second rail element to the first rail element and thus also to the device, preferably a cooking appliance, which uses the extension guide.

[0034] According to a further aspect of the invention, the fixed projection and the spring-mounted roller are arranged and designed to effect the releasable locking connection with each other if the third rail element is fully extended relative to the first rail element and the second rail element is fully extended relative to the third rail element along the longitudinal axis opposite the side wall, preferably of the cooking chamber of the cooking appliance.

[0035] This can represent a concrete implementation option in the case where three rail elements are used.

[0036] The invention also relates to a cooking appliance, preferably an oven, with a cooking chamber which is designed to receive at least one cooking vessel, preferably a baking tray, through an access opening along the longitudinal axis, with a closing element which is designed to close and release the access opening of the cooking chamber from the front, preferably by means of a pivoting element, preferably a hinge, and with at least one pair of extension guides which are arranged parallel to each other at the same height along the vertical axis in the cooking chamber on each side wall, preferably on a receiving grid, and are movable along the longitudinal axis through the opened access opening out of the cooking chamber, wherein the extension guides each have: • a first rail element which is fixedly connected to the respective side wall, preferably to the respective receiving grid, and • a second rail element which is movably connected to the first rail element along the longitudinal axis, wherein the second rail element is designed to removably receive a cooking vessel, preferably a baking tray, wherein at least one of the first rail elements has a fixed projection and at least one of the second rail elements has a spring-loaded roller, or vice versa, wherein the fixed projection and the spring-loaded roller are arranged and designed to effect a releasable locking connection with each other if the second rail element is completely extended relative to the first rail element along the longitudinal axis from the access opening of the cooking chamber of the cooking appliance.

[0037] This can represent a concrete possibility of applying at least one drawer guide according to the invention and preferably a pair of drawer guides according to the invention as described above, in order to implement and utilize its properties and advantages in a cooking appliance.

[0038] According to one aspect of the invention, the cooking appliance further comprises a third rail element which movably connects the first rail element to the second rail element along the longitudinal axis, wherein the fixed projection and the spring-mounted roller are arranged and designed to effect the releasable locking connection when the third rail element is fully extended relative to the first rail element and the second rail element is fully extended relative to the third rail element along the longitudinal axis from the access opening of the cooking chamber of the cooking appliance.

[0039] This can also make it possible in this specific application to design the drawer guides in at least three parts, as previously described.

[0040] An embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows Fig. 1 a perspective view of a cooking appliance according to the invention from a slanted front top view; Fig. 2 a perspective view of an extension guide according to the invention in the fully inserted state (top) and in the fully extended state (bottom); Fig. 3 a perspective detail view of the Fig. 2 from the back; and Fig. 4 a perspective detail view of one end of the second rail element viewed individually.

[0041] The figures above are viewed in Cartesian coordinates. A longitudinal axis X extends, which can also be called depth X or length X. Perpendicular to the longitudinal axis X extends a transverse axis Y, which can also be called width Y. Perpendicular to both the longitudinal axis X and the transverse axis Y extends a vertical axis Z, which can also be called height Z and corresponds to the direction of gravity. The longitudinal axis X and the transverse axis Y together form the horizontal X,Y, which can also be called the horizontal plane X,Y.

[0042] Fig. Figure 1 shows a perspective view of a cooking appliance 1 according to the invention from a slanted front top view. Fig. Figure 2 shows a perspective view of an extension guide 16 according to the invention in the fully inserted state (top) and in the fully extended state (bottom). Fig. Figure 3 shows a perspective detail view of the Fig. 2 from the back. Fig. Figure 4 shows a perspective detail view of one end of the second rail element 16 viewed individually.

[0043] A cooking appliance 1 according to the invention is considered using the example of an oven 1, cf. Fig. 1. The oven 1 has an outer housing 10, which can also be referred to as the outer casing 10, and which essentially encloses or surrounds the oven 1 externally. The outer housing 10 terminates at the top along the longitudinal axis X towards the front, i.e., towards the user, with a panel 10a. Inside the outer housing 10 is an inner housing 11, which can also be referred to as the inner casing 11. The inner casing 11 terminates at the rear along the longitudinal axis X, downwards and upwards along the vertical axis Z, and on both sides along the transverse axis Y with the outer housing 10, so that a space (not shown) is formed between the outer housing 10 and the inner housing 11, which can also be referred to as the casing space. This space constitutes the interior of the oven 1.

[0044] The inner housing 11 essentially encloses an interior space 12 in which a cooking process can be carried out. For this purpose, corresponding elements (not shown) for heating the interior space 12 are arranged in the space between the housing and the interior space 12. Accordingly, the interior space 12 can also be referred to as the cooking chamber 12.

[0045] The cooking chamber 12 is accessible to the user from the front along the longitudinal axis X through an access opening 13, which is located below the panel 10a. The access opening 13 can be opened and closed by means of a locking element 14 in the form of a flap 14. For this purpose, the flap 14 is connected to the outer housing 10 of the oven 1 by means of at least one hinge (not shown) so that it can pivot upwards about the transverse axis Y, so that the flap 14 can be pivoted upwards away from the user to close the access opening 13, and pivoted downwards towards the user to open the access opening 13 and access the cooking chamber 12, cf. Fig. 1.

[0046] The cooking chamber 12 has a side wall 12a on each side along the transverse axis Y, on each of which a removable support grid 15 is arranged. A pull-out guide 16 in the form of a telescopic rail 16 is removablely attached to each support grid 15 at the same height along the vertical axis Z, forming a pair of pull-out guides 16 or telescopic rails 16. The telescopic rails 16 are each designed in three sections along the longitudinal axis X, such that a first, rear rail element 16a is connected to a second, front rail element 16b of the telescopic rail 16 by means of a third, middle rail element 16c, the first, rear rail element 16a being held fixedly and removably on the respective support grid 15, cf. Fig. 1 and Fig. 2.

[0047] The pair of telescopic rails 16 can also be referred to as a rail system 16. The first, rear rail element 16a can also be referred to as the inner outer rail 16a, the third, middle rail element 16c as the middle rail 16c, and the second, front rail element 16b as the outer outer rail 16b of the telescopic rails 16. The telescopic rails 16 can also be referred to as a rail system 16.

[0048] A cooking utensil, such as a baking tray (not shown), can be placed on the pair of telescopic rails 16 or their second, front rail elements 16b by the user, so that it can be pushed into and pulled out of the cooking chamber 12 along the longitudinal axis X. This makes it easier for the user to insert the baking tray into and remove it from the cooking chamber 12.

[0049] In order to securely position the pair of telescopic rails 16, which are fully extended forward along the longitudinal axis X from the cooking chamber 12 or through its access opening 13, at least one of the two telescopic rails 16, and in the considered embodiment both telescopic rails 16, has a projection 16aa in the form of a locking cam 16aa on the front end (not shown) of the first, rear rail element 16a, which projects downwards in an arc, cf. for example Fig. 3. Furthermore, the two second, front rail elements 16b each have a spring element 16ba in the form of a laterally bent spring wire 16ba, which each carries a ceramic roller 16bb, cf. for example Fig. 4. The rollers 16bb of the two second, front rail elements 16b are each arranged at its rear end, cf. for example Fig. 2 and Fig. 3.

[0050] The two locking cams 16aa of the first, rear rail elements 16a and the two rollers 16bb of the second, front rail elements 16b are arranged and aligned with each other such that the rollers 16bb of the second, front rail elements 16b contact their respective corresponding locking cams 16aa of the first, rear rail elements 16a when the second, front rail elements 16b reach their fully extended position along the longitudinal axis X. Then, the rollers 16bb of the second, front rail elements 16b are each spring-loaded downwards along the vertical axis Z by the corresponding locking cam 16aa of the first, rear rail elements 16a, a movement made possible by the spring wire 16ba of the second, front rail elements 16b.

[0051] It requires a certain amount of force from the user to pull the two second, front rail elements 16b over the locking cams 16aa of the first, rear rail elements 16a. However, this force remains at least essentially constant thanks to the rollers 16bb of the second, front rail elements 16b, since the rollers 16bb of the second, front rail elements 16b roll upon contact with the corresponding locking cams 16aa of the first, rear rail elements 16a. This prevents or at least minimizes the effects of contamination and, in particular, grease on the contact surfaces. The rolling contact also reduces wear on the contact surfaces.

[0052] Subsequently, i.e., after overcoming the maximum deflection of the spring-loaded rollers 16bb of the second, front rail elements 16b, the two second, front rail elements 16b are in the fully extended position and are locked in place. For this to occur, the rollers 16bb of the second, front rail elements 16b spring back to their initial position by means of the wires 16ba of the second, front rail elements 16b, thus holding the two second, front rail elements 16b in the fully extended position. Now the user can safely use the baking tray without any movement of the telescopic rails 16, especially relative to each other, to place the baking tray onto the extended telescopic rails 16 or to add or remove food from the baking tray without unintentionally moving the baking tray.

[0053] From the fully extended position, the two second, front rail elements 16b can be moved out again by the user and pushed back into the cooking chamber 12 by overcoming the mechanical resistances of the locking cams 16aa of the first, rear rail elements 16a again and thus releasing the spring rollers 16bb of the second, front rail elements 16b again. Reference numeral list (part of the description) X Longitudinal axis; Depth; Length Y transverse axis; width Z vertical axis; height X, Y Horizontal; horizontal plane 1 cooking appliance; oven 10 Outer casing; outer casing 10a aperture 11 Inner casing; inner case 12 Oven compartment; interior 12a Side walls of the cooking chamber 12 12b rear area of ​​the cooking chamber 12 13 Access opening 14. Locking element; flap 15 receiving grids 16 drawer slides; telescopic slides; rail system 16a first, rear rail elements or inner outer rails of the extension guides 16 or of the telescopic rails 16 16aa Projections or locking lugs of the first, rear rail elements 16a 16b second, front rail elements or outer outer rails of the extension guides 16 or of the telescopic rails 16 16ba Spring elements or spring steels or spring wires of the second, front rail elements 16 16bb Role of the second, front rail elements 16 16c third, middle rail elements or center rails of the extension guides 16 or of the telescopic rails 16 QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2013 102 948 B4 [0012, 0017]

Claims

A drawer guide (16), preferably for cooking appliances (1), particularly preferably for ovens (1), comprising a first rail element (16a) configured to be fixedly connected to a side wall (12a), preferably of a cooking chamber (12) of the cooking appliance (1), and a second rail element (16b) configured to be movably connected to the first rail element (16a) along the longitudinal axis (X), wherein the second rail element (16b) is preferably configured to receive a cooking vessel, preferably a baking tray, in a removable manner, wherein the first rail element (16a) has a fixed projection (16aa) and the second rail element (16b) has a spring-loaded roller (16bb), or vice versa, wherein the fixed projection (16aa) and the spring-loaded roller (16bb) are arranged and configured to create a releasable locking connection with each other.if the second rail element (16b) is fully extended relative to the first rail element (16a) along the longitudinal axis (X) relative to the side wall (12a), preferably of the cooking chamber (12) of the cooking appliance (1). Extension guide (16) according to claim 1, wherein the first rail element (16a) has the fixed projection (16aa) and the second rail element (16b) has the spring-mounted roller (16bb). Extraction guide (16) according to claim 1 or 2, wherein the fixed projection (16aa) and the spring-mounted roller (16bb) have different materials, preferably consisting of different materials. Extraction guide (16) according to one of the preceding claims, wherein the fixed projection (16aa) is made of metal and the spring-mounted roller (16bb) is made of ceramic. Extraction guide (16) according to one of the preceding claims, wherein the roller (16bb) is spring-mounted by means of a spring element (16ba), wherein the spring element (16ba) rotatably connects the roller (16bb) to the second rail element (16b). Extraction guide (16) according to claim 5, wherein the spring element (16ba) is a resilient spring steel (16ba) or a resilient wire (16ba). Extraction guide (16) according to one of the preceding claims, further comprising a third rail element (16c) which movably connects the first rail element (16a) along the longitudinal axis (X) to the second rail element (16b). Extension guide (16) according to claim 7, wherein the fixed projection (16aa) and the spring-mounted roller (16bb) are arranged and designed to effect the releasable locking connection with each other when the third rail element (16c) is fully extended relative to the first rail element (16a) and the second rail element (16b) is fully extended relative to the third rail element (16c) along the longitudinal axis (X) relative to the side wall (12a), preferably of the cooking chamber (12) of the cooking appliance (1). Cooking appliance (1), preferably an oven (1), with a cooking chamber (12) which is designed to receive at least one cooking vessel, preferably a baking tray, through an access opening (13) along the longitudinal axis (X), with a closing element (14) which is designed to close and release the access opening (13) of the cooking chamber (12) from the front, preferably by pivoting by means of a pivoting element, preferably a hinge, and with at least one pair of extension guides (16) which are arranged parallel to each other at the same height along the vertical axis (Z) in the cooking chamber (12) on each side wall (12a), preferably on a receiving grid (15), and are movable along the longitudinal axis (X) through the opened access opening (13) out of the cooking chamber (12), wherein the extension guides (16) each have: a first rail element (16a) which is fixedly connected to the respective side wall (12a),preferably connected to the respective receiving grid (15), and a second rail element (16b) which is movably connected to the first rail element (16a) along the longitudinal axis (X), wherein the second rail element (16b) is designed to removably receive a cooking vessel, preferably a baking tray, wherein at least one of the first rail elements (16a) has a fixed projection (16aa) and at least one of the second rail elements (16b) has a spring-loaded roller (16bb), or vice versa, wherein the fixed projection (16aa) and the spring-loaded roller (16bb) are arranged and designed to create a releasable locking connection with each other if the second rail element (16b) is fully extended relative to the first rail element (16a) along the longitudinal axis (X) from the access opening (13) of the cooking chamber (12) of the cooking appliance (1). Cooking appliance (1) according to claim 9, further comprising a third rail element (16c) which movably connects the first rail element (16a) along the longitudinal axis (X) to the second rail element (16b), wherein the fixed projection (16aa) and the spring-mounted roller (16bb) are arranged and designed to effect the releasable locking connection when the third rail element (16c) is fully extended relative to the first rail element (16a) and the second rail element (16b) is fully extended relative to the third rail element (16c) along the longitudinal axis (X) from the access opening (13) of the cooking chamber (12) of the cooking appliance (1).

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