Stackable baking tray for baking pasta and a stack containing a first and second such baking tray

Abstract

A stackable baking tray (1) for baking pasta comprises a base (2) and a surrounding wall (3) extending from the base (2) and, together with the base (2), defining a receiving space (4) for the pasta. The baking tray (1) comprises a first upper locking element (5a) arranged on a top surface (3a) of the surrounding wall (3) spaced apart from the base (2). The baking tray (1) comprises a first lower locking element (6a) arranged on a bottom surface (2a) of the base (2). The first upper locking element (5a) and the first lower locking element (6a) are arranged in top view of the oven tray (2) offset from a center (7) of the oven tray (1) by a predetermined rotation angle (α), whereby the oven tray (1) with its first lower locking element (6a) can be placed onto a first upper locking element (6b) of another oven tray (1a, 1b, 1c) rotated relative to it.

Description

[0001] The invention relates to a stackable oven tray for baking dough products, such as pizza, cakes, bread and rolls, and a stack comprising a first and at least a second such oven tray.

[0002] Nowadays, oven trays come in a wide variety of shapes for baking baked goods. To prepare many portions of food at once, for example at parties, it's desirable to be able to place several trays in the oven simultaneously. This is usually achieved by using oven trays that fit into an oven's rack system. The disadvantage of this is that only a certain number of trays can be used at a time, and that too many trays significantly restrict air circulation, negatively impacting the baking results.

[0003] DE 677 228 A discloses a cooking, baking, roasting or steaming device with several cooking vessels arranged one above the other, between each of which a horizontal partition with a through-opening is provided. The heating gases are passed through the respective through-openings in the stacked cooking vessels.

[0004] DE 197 11 222 A1 discloses a proofing tray for baking technology, designed as a trough-like deep-drawn part. The surface of the proofing tray facing the proofing material has a porous structure. Several proofing trays can be stacked on top of each other using stacking strips.

[0005] DE 602 05 434 T2 discloses a cooking element that encloses a space for steam cooking with an annular side wall. The cooking element includes a perforated base that is removable. Several cooking elements can be stacked on top of each other, with the steam flowing through the perforated base of each to the adjacent cooking element.

[0006] DE 10 2020 107 455 A1 discloses a cooking device for baked goods. The cooking device comprises several food carriers arranged one above the other at intervals.

[0007] EP 2 592 357 A2 shows a cooking system with several cooking trays arranged one above the other.

[0008] The object of the present invention is therefore to create an oven tray which avoids these disadvantages and delivers a better baking result.

[0009] The problem is solved by a stackable oven tray according to independent claim 1 and by a stack of a first and at least one second oven tray according to claim 20. Advantageous embodiments of the stackable oven tray are specified in claims 2 to 19. Claim 21 describes an advantageous embodiment of the stack of the first and at least one second oven tray.

[0010] The stackable baking tray according to the invention is preferably used for baking pasta, but can also be used for preparing other foods such as meat, fish, and / or vegetables. The baking tray comprises a base and a surrounding wall that extends from the base and, together with the base, defines a receiving area for the pasta to be baked. The baking tray includes a first upper locking element arranged on the upper surface of the surrounding wall, spaced apart from the base. The baking tray also includes a first lower locking element arranged on the underside of the base.The first upper locking element and the first lower locking element are arranged relative to each other in a top view of the oven tray by a predetermined angle of rotation from the center of the oven tray. This allows the oven tray, with its first lower locking element, to be rotated relative to the first upper locking element of another oven tray and placed onto it. The phrase "offset by a predetermined angle of rotation" means that the first upper locking element and the first lower locking element are offset from each other by a segment that preferably follows a circular path around the center. This allows an oven tray to be rotated in a plane parallel to the oven floor in order to be placed onto another oven tray. The bottom of one oven tray is parallel to the bottom of the other oven tray.Preferably, the upper locking element of the lower oven tray engages with the lower locking element of the upper oven tray. This results in the oven trays having different rotational or angular positions, which promotes air circulation in the oven and allows them to be stacked stably.

[0011] In an advantageous further development of the oven tray, the surrounding wall extends vertically away from the floor.

[0012] In a further advantageous embodiment, the angle of rotation is greater than 30°, 35°, 40°, 45°, 50°, 55°, or 60°. More preferably, the angle of rotation is less than 65°, 55°, 50°, 45°, 40°, or 35°. A rotation angle of 45° is preferred. This means that the upper baking tray can be placed on the lower baking tray after being rotated by 45°.

[0013] In an advantageous further development, the angle of rotation is not equal to 180° and not equal to 360°.

[0014] In an advantageous embodiment, the oven tray comprises a second upper locking element arranged on the upper surface of the surrounding wall, spaced apart from the base, with the first and second upper locking elements spaced apart from each other. The oven tray comprises a second lower locking element arranged on the underside of the base, spaced apart from the first lower locking element. The second upper locking element and the second lower locking element are arranged relative to each other in a top view of the oven tray by a predetermined angle of rotation from the center of the oven tray, allowing the oven tray, with its second lower locking element, to be rotated relative to a second upper locking element of another oven tray before being placed onto it.By using two upper locking elements and two lower locking elements, two oven trays can be stacked more stably on top of each other.

[0015] In an advantageous further development, the shape of the first lower locking element corresponds to the shape of the first upper locking element. Additionally or alternatively, the shape of the second lower locking element corresponds to the shape of the second upper locking element. This means that one locking element can engage with its corresponding other locking element.

[0016] In an advantageous embodiment, the first lower locking element, viewed from the underside of the base, comprises a recess. The first upper locking element, viewed from the top of the surrounding wall, comprises a projection. The depth of the recess and the height of the projection correspond to each other and are preferably the same. The shape of the recess and the shape of the projection are also preferably matched. Additionally or alternatively, the second lower locking element, viewed from the underside of the base, comprises a recess. The second upper locking element, viewed from the top of the surrounding wall, comprises a projection. The depth of the recess and the height of the projection correspond to each other and are preferably the same. The shape of the recess and the shape of the projection are also preferably matched. This allows an upper oven tray to be placed very easily onto a lower oven tray below it.The first and second upper locking elements of the lower oven tray engage with their projection in the corresponding recess of the first and second lower locking elements of the upper oven tray.

[0017] In an advantageous further development, the projection has a height of preferably less than 1 cm and the recess has a depth of preferably less than 1 cm.

[0018] In an advantageous embodiment, the projection preferably extends over a length greater than 10 mm, 15 mm, 20 mm, 30 mm, 40 mm, 50 mm or 60 mm and preferably less than 70 mm, 65 mm, 55 mm, 45 mm, 35 mm, 25 mm, 15 mm or 12 mm.

[0019] In an advantageous embodiment, the recess preferably extends over a length greater than 10 mm, 15 mm, 20 mm, 30 mm, 40 mm, 50 mm or 60 mm and preferably less than 70 mm, 65 mm, 55 mm, 45 mm, 35 mm, 25 mm, 15 mm or 12 mm.

[0020] In an advantageous further development, the projection of the first upper locking element and the projection of the second upper locking element are arranged separately from each other and are not connected to each other.

[0021] In an advantageous further development, the recess of the first lower locking element and the recess of the second lower locking element are arranged separately from each other and are not connected to each other.

[0022] In an advantageous further development, the projection of the first upper locking element and the projection of the second upper locking element are free of any opening and completely closed.

[0023] In an advantageous further development, the recess of the first lower locking element and the recess of the second lower locking element are free of an opening and completely closed.

[0024] In an advantageous further development, the first upper locking element and the second upper locking element are free of a screw connection and / or a movable element.

[0025] In an advantageous further development, the first lower locking element and the second lower locking element are free of a screw connection and / or a moving element.

[0026] In a further advantageous development, the recess is created by an embossing and / or pressing and / or bending process, which in turn creates the corresponding projection on the other side. Thus, creating a recess on the underside of the base results in a corresponding projection on the upper side of the base, which extends into the receiving space.

[0027] In an advantageous further development, the protrusions are visible in a top view of the top of the oven tray and the indentations in a top view of the underside of the oven tray.

[0028] It would also be conceivable, in principle, for a protrusion to extend from the underside of the base and for a recess to form on the top of the surrounding wall. However, this could have the disadvantage of making the lower oven tray unstable on a kitchen worktop or in the oven.

[0029] In an advantageous embodiment, the shape of the first upper locking element corresponds to the shape of the second upper locking element. It is also conceivable that the second upper locking element has a shape that differs from the shape of the first upper locking element. Furthermore, the shape of the first lower locking element corresponds to the shape of the second lower locking element. It is also conceivable that the second lower locking element has a shape that differs from the shape of the first lower locking element.

[0030] In a further advantageous embodiment, the first upper locking element and the first lower locking element have the shape of an arc, circle, oval, rectangle, square, or straight line. Additionally or alternatively, the second upper locking element and the second lower locking element have the shape of an arc, circle, oval, rectangle, square, or straight line.

[0031] In a further advantageous embodiment, the first upper locking element is positioned at the same distance from the center of the oven tray as the first lower locking element. Additionally or alternatively, the second upper locking element is positioned at the same distance from the center of the oven tray as the second lower locking element. This allows the upper oven tray to be rotated around its center. Moving the upper oven tray along an axis is unnecessary for stacking. This allows for optimal use of space in the oven.

[0032] In a further advantageous embodiment, the first upper locking element is spaced the same distance from the center of the oven tray as the second upper locking element. Additionally or alternatively, the first lower locking element is spaced the same distance from the center of the oven tray as the second lower locking element. This results in a highly symmetrical design of the oven tray.

[0033] In an advantageous further development, the surrounding wall includes a flange on its upper surface, which extends outwards. The term "outwards" means that the flange does not extend towards the receiving space, but rather further away from the center of the oven tray. The first upper locking element is located in a first part of the flange, while the second upper locking element is located in a second part of the flange. This allows for the simple creation of the first and second upper locking elements. This is achieved in particular by applying an embossing, pressing, and / or bending process to the flange.

[0034] In an advantageous embodiment, the flange extends along the majority or the entire upper surface of the circumferential wall. Preferably, the flange extends 360° around the center. Alternatively, the flange extends only in the region of the upper surface of the circumferential wall where the first upper locking element and the second upper locking element are located. Preferably, in this case, the flange would consist of the first and second parts, which are not contiguous.

[0035] In a further advantageous embodiment, the flange extends further outwards from the top of the surrounding wall in the areas where the first and second upper locking elements are located. In other areas, which are free of the first and second upper locking elements, the flange extends less far outwards. This allows for a more compact design of the oven tray.

[0036] In an advantageous further development, the flange is arranged parallel to but spaced apart from the ground.

[0037] In a further advantageous embodiment, the first upper locking element and the second upper locking element are spaced apart from each other by 180° around the center of the oven tray. Preferably, the first lower locking element and the second lower locking element are also spaced apart from each other by 180° around the center of the oven tray.

[0038] In a particularly advantageous embodiment, the surrounding wall includes a first protrusion, wherein the first lower locking element is located in the base within the area of ​​the first protrusion. Additionally or alternatively, the surrounding wall includes a second protrusion, wherein the second lower locking element is located in the base within the area of ​​the second protrusion. A "protrusion" is understood to mean that in the area of ​​the protrusion, the surrounding wall extends further outwards than in other areas, thereby increasing the receiving space in this area. This makes it very efficient to ensure that the first lower locking element is located at the same distance from the center of the oven tray as the first upper locking element, and that the second lower locking element is located at the same distance from the center of the oven tray as the second upper locking element.

[0039] In a further advantageous embodiment, the first lower locking element is itself rotated by the angle of rotation relative to the first upper locking element and arranged on the base of the oven tray, such that by rotating the oven tray by the angle of rotation, the first lower locking element assumes the same angular position as the first upper locking element of the other oven tray. If the angle of rotation is, for example, 45°, the first lower locking element is arranged on the base rotated by 45° relative to the first upper locking element. Additionally or alternatively, the second lower locking element is itself rotated by the angle of rotation relative to the second upper locking element and arranged on the base of the oven tray, such that by rotating the oven tray by the angle of rotation, the second lower locking element assumes the same angular position as the second upper locking element of the other oven tray.

[0040] In an advantageous embodiment, the first lower locking element, viewed from a top view of the underside of the base, comprises an arc-shaped profile. The first lower locking element, particularly in the form of a recess, preferably follows a section on a circular path around the center of the oven tray. Correspondingly, the first upper locking element, particularly in the form of a projection, comprises a similar arc-shaped profile when viewed from a top view of the upper surface of the surrounding wall. Additionally or alternatively, the second lower locking element, viewed from a top view of the underside of the base, comprises an arc-shaped profile. The second lower locking element, particularly in the form of a recess, preferably follows a section on a circular path around the center of the oven tray. Correspondingly, the second upper locking element, particularly in the form of a projection, comprises a similar arc-shaped profile when viewed from a top view of the upper surface of the surrounding wall.This allows two baking trays to be stacked very stably on top of each other.

[0041] In a further development, the base of the oven tray is perforated in one area with numerous holes to allow for air exchange during the baking process. This results in improved baking results.

[0042] In an advantageous further development, the holes have a diameter of preferably less than 5 mm, 4 mm or less than 3 mm.

[0043] In a further advantageous design, the area of ​​the base with the holes is raised above other areas of the base that are free of holes and projects further into the receiving space. This means that the perforated area does not rest directly on a surface, such as the oven floor, allowing for optimal air circulation.

[0044] In an advantageous further development, the area riddled with holes is divided into several sub-areas by areas that are free of holes.

[0045] In a particularly advantageous embodiment, the oven tray is a one-piece laser-cut, stamped, embossed, and / or bent part. It is especially advantageous that the oven tray is formed in one piece. This eliminates the need for a frame or other support structure to securely stack one oven tray on top of another.

[0046] In an advantageous further development, the oven tray is made of enamel. This makes the oven tray particularly resistant and easy to clean.

[0047] In a further advantageous embodiment, the oven tray is constructed with point symmetry about the center. The oven tray can also be constructed with symmetry about a central longitudinal plane that runs through the center.

[0048] In an advantageous further development, the connection of the first upper locking element of one oven tray with the first lower locking element of another oven tray is a positive-locking connection.

[0049] In a preferred embodiment, the first upper locking element is arranged closer to the surrounding wall than to the center of the oven tray. Additionally or alternatively, the first lower locking element is arranged closer to the surrounding wall than to the center of the oven tray. Additionally or alternatively, the second upper locking element is arranged closer to the surrounding wall than to the center of the oven tray. Additionally or alternatively, the second lower locking element is arranged closer to the surrounding wall than to the center of the oven tray.

[0050] In an improved version, there is at least one additional upper locking element and at least one additional lower locking element. Further locking elements may also be present.

[0051] The stack according to the invention comprises a first oven tray and at least one second oven tray. The oven trays are constructed according to at least one of the preceding embodiments. The second oven tray is placed with its first lower locking element onto the first upper locking element of the first oven tray, so that, in a top view of the stack, the first and second oven trays are aligned offset from each other by the angle of rotation. The stack is therefore very stable and space-saving.

[0052] In an advantageous embodiment of the stack, the second oven tray is placed with its second lower locking element onto the second upper locking element of the first oven tray, so that, in a top view of the stack, the first and second oven trays are aligned offset from each other by the rotation angle. The use of a second upper and lower locking element makes the stack even more stable.

[0053] In an advantageous embodiment of the stack, the first and second baking trays have a cross-section that deviates from a round shape, so that when viewed from above, the receiving space of the first baking tray is visible, which promotes air exchange during the baking process. The angle of rotation is neither 180° nor 360°.

[0054] In a further advantageous embodiment, the upper oven tray can only be stacked on the lower oven tray in a predetermined rotational or angular position. Preferably, the upper oven tray can only be stacked on the lower oven tray in one or two predetermined rotational or angular positions.

[0055] The invention is described below purely by way of example with reference to the drawings. They show: Fig. 1, Fig. 2 and Fig. 3: Various views of the oven tray according to the invention; and Fig. 4 and Fig. 5: Various views of a stack of several oven trays according to the invention.

[0056] The Fig. 1, Fig. 2 and Fig. Figure 3 shows different views of the oven tray 1 according to the invention. The oven tray 1 comprises a base 2 and a surrounding wall 3. The surrounding wall 3 extends away from the base 2 and, together with the base 2, defines a receiving space 4 for placing the pasta.

[0057] The oven tray 1 comprises a first upper locking element 5a, which is arranged on a top surface 3a of the surrounding wall 3, spaced apart from the base 2. The oven tray 1 comprises a first lower locking element 6a, which is arranged on a bottom surface 2a of the base 2.

[0058] The first upper locking element 5a and the first lower locking element 6a are arranged in a top view of the oven tray 1 offset from a center 7 of the oven tray 1 by a predetermined rotation angle α, whereby the oven tray 1 with its first lower locking element 6a can be placed onto a first upper locking element 5a of another oven tray 1 rotated relative to it.

[0059] The oven tray 1 includes a second upper locking element 5b, which is arranged on a top surface 3a of the surrounding wall 3, spaced apart from the base 2. The oven tray 1 includes a second lower locking element 6b, which is arranged on the underside 2a of the base 2.

[0060] The second upper locking element 5b and the second lower locking element 6b are arranged in a top view of the oven tray 1 offset from a center 7 of the oven tray 1 by the same predetermined angle of rotation α, whereby the oven tray 1 with its second lower locking element 6b can be placed on a second upper locking element 5b of another oven tray 1 rotated relative to it.

[0061] The angle of rotation α is approximately 45° in this embodiment.

[0062] The shape of the first lower locking element 6a corresponds to the shape of the first upper locking element 5a. Furthermore, the shape of the second lower locking element 6b corresponds to the shape of the second upper locking element 5b.

[0063] In a plan view of the underside 2a of the base 2, the first lower locking element 6a comprises a recess, and in a plan view of the top side 3a of the surrounding wall 3, the first upper locking element 5a comprises a projection. The same applies to the second upper and lower locking elements 5b and 6b. In a plan view of the underside 2a of the base 2, the second lower locking element 6b comprises a recess, and in a plan view of the top side 3a of the surrounding wall 3, the second upper locking element 5b comprises a projection.

[0064] The projections of the first and second upper locking elements 5a, 5b are separated from each other. The recesses of the first and second lower locking elements 6a, 6b are also separated from each other.

[0065] The first upper locking element 5a is spaced the same distance from the center 7 of the oven tray 1 as the first lower locking element 6a. Furthermore, the second upper locking element 5b is spaced the same distance from the center 7 of the oven tray 1 as the second lower locking element 6b. In this embodiment, the first upper locking element 5a is spaced the same distance from the center 7 of the oven tray 1 as the second upper locking element 5b. Additionally, the first lower locking element 6a is spaced the same distance from the center 7 of the oven tray 1 as the second lower locking element 6b.

[0066] The surrounding wall 3 includes a flange 8 on its upper surface 3a, which extends outwards. The first upper locking element 5a is arranged in a first part 8a of the flange 8. The second upper locking element 5b is arranged in a second part 8b of the flange 8. The flange 8 is arranged parallel to, but spaced apart from, the base 2.

[0067] The flange 8 extends along the entire top surface 3a of the surrounding wall 3. However, the flange 8 does not have the same width everywhere. In other words, the flange 8 does not extend outwards to the same extent everywhere. Specifically, the flange 8 extends further outwards from the top surface 3a of the surrounding wall 3 in the areas where the first upper locking element 5a and the second upper locking element 5b are located, compared to other areas that are free of the first and second upper locking elements 5a, 5b. In this embodiment, the areas where the flange 8 has its greatest width are the first part 8a and the second part 8b.

[0068] The surrounding wall 3 includes a first projection 10a, wherein the first lower locking element 6a is arranged in the base 2 in the area of ​​the first projection 10a. Furthermore, the surrounding wall 3 includes a second projection 10b, wherein the second lower locking element 6b is arranged in the base 2 in the area of ​​the second projection 10b.

[0069] The first lower locking element 6a is not only offset by the rotation angle α relative to the first upper locking element 5a, but is itself also rotated by the rotation angle α relative to the first upper locking element 5a on the base 2 of the oven tray 1. This allows the first lower locking element 6a to assume the same angular position as the first upper locking element 5a of the other oven tray 1 when the oven tray 1 is rotated by the rotation angle α. Thus, in Fig. 1. The first lower locking element 6a is arranged approximately vertically, whereas the first upper locking element 5a is arranged at an angle. The second lower locking element 6b is not only offset by the rotation angle α relative to the second upper locking element 5b, but is itself also rotated by the rotation angle α relative to the second upper locking element 5b on the base 2 of the oven tray 1. This allows the second lower locking element 6b to assume the same angular position as the second upper locking element 5b of the other oven tray 1 when the oven tray 1 is rotated by the rotation angle α. Thus, in Fig. 1 the second lower locking element 6b is arranged approximately vertically, whereas the second upper locking element 5b is arranged at an angle.

[0070] Furthermore, the first lower locking element 6a, viewed from the underside 2a of the base 2, has an arc-shaped profile. Correspondingly, the first upper locking element 5a, viewed from the top side 3a of the surrounding wall 3, also has an arc-shaped profile. In this embodiment, this also applies to the second upper and lower locking elements 5b and 6b. Thus, the second lower locking element 6b, viewed from the underside 2a of the base 2, has an arc-shaped profile. The second upper locking element 5b, viewed from the top side 3a of the surrounding wall 3, has an arc-shaped profile.

[0071] Furthermore, the base 2 of the oven tray 1 is perforated by a large number of holes 11 for air exchange during the baking process.

[0072] Furthermore, in this embodiment, the area of ​​the floor 2 which is penetrated by the holes 11 is raised above the other area of ​​the floor 2 which is free of holes 11 and projects further into the receiving space 4.

[0073] In this embodiment, the oven tray is constructed with point symmetry about the center 7.

[0074] In the Fig. 4 and Fig. 5 represents a stack of 100 oven trays 1. Fig. In addition to oven tray 1, there is a second oven tray 1a. The second oven tray 1a is placed with its first lower locking element 6a onto the first upper locking element 5a of oven tray 1. Furthermore, the second oven tray 1a is placed with its second lower locking element 6b onto the second upper locking element 5b of oven tray 1. Thus, in a top view of the stack 100, oven tray 1 and the second oven tray 1a are aligned offset from each other by the rotation angle α.

[0075] The oven tray 1 and the second oven tray 1a also have a cross-section that deviates from a round shape, so that when looking at the top 3a of the surrounding wall 3 of the second oven tray 1a, the receiving space 4 of the oven tray 1 arranged below is visible, thus improving the air exchange during the baking process.

[0076] Since the rotation angle α is approximately 45°, the second oven tray 1a is arranged rotated by precisely this rotation angle α relative to the oven tray 1.

[0077] In Fig.In stack 100, besides the first and second oven trays 1a, there is a third oven tray 1b and a fourth oven tray 1c. The second oven tray 1a is placed with its recessed first and second lower locking elements 6a, 6b onto the projecting first and second upper locking elements 5a, 5b of the first oven tray 1. The third oven tray 1b is placed with its recessed first and second lower locking elements 6a, 6b onto the projecting first and second upper locking elements 5a, 5b of the second oven tray 1a. The fourth oven tray 1c is placed with its recessed first and second lower locking elements 6a, 6b onto the projecting first and second upper locking elements 5a, 5b of the third oven tray 1b.

[0078] Since the rotation angle α is approximately 45°, the second oven tray 1a is rotated by precisely this rotation angle α relative to oven tray 1. The third oven tray 1b is also rotated by this rotation angle α relative to the second oven tray 1a, and the fourth oven tray 1c is further rotated by this rotation angle α relative to the third oven tray 1b.

[0079] The invention is not limited to the described embodiments. Within the scope of the invention, all described and / or drawn features can be combined with one another as desired. Reference symbol list 1 baking tray 1a, 1b, 1c Additional oven trays 2 floors 2a Underside of the floor 3. Perimeter wall 3a Top of the surrounding wall 4 Recording room 5a First upper locking element 5b Second upper locking element 6a First lower locking element 6b Second lower locking element 7 Center 8 flange 8a First part of the flange 8b Second part of the flange 10a First bulge 10b Second bulge 11 holes (in the ground) α Rotation angle 100 stacks

Claims

[1] Stackable baking tray (1) for baking pasta with the following features: - the oven tray (1) comprises a base (2) and a surrounding wall (3) which extends away from the base (2) and, together with the base (2), defines a receiving space (4) for the pasta; - the oven tray (1) comprises a first upper locking element (5a) which is arranged on an upper side (3a) of the peripheral wall (3) spaced from the base (2); - the oven tray (1) comprises a first lower locking element (6a) arranged on an underside (2a) of the base (2); - the first upper locking element (5a) and the first lower locking element (6a) are arranged offset from a center (7) of the oven tray (1) by a predetermined angle of rotation (α) in plan view of the oven tray (1), whereby the oven tray (1) with its first lower locking element (6a) can be placed on a first upper locking element (6b) of another oven tray (1a, 1b, 1c) rotated relative to the latter. [2] Stackable oven tray (1) according to claim 1, characterized by the following features: - the oven tray (1) comprises a second upper locking element (5b) which is arranged on the upper side (3a) of the peripheral wall (3) spaced from the base (2), wherein the first upper locking element (5a) and the second upper locking element (5b) are arranged at a distance from one another; - the oven tray (1) comprises a second lower locking element (6b) which is arranged at a distance from the first lower locking element (6a) on the underside (2a) of the base (2); - the second upper locking element (5b) and the second lower locking element (6b) are arranged offset from the center (7) of the oven tray (1) by the predetermined angle of rotation (α) in plan view of the oven tray (1) and, as a result of which the oven tray (1) with its second lower locking element (6b) can be placed on a second upper locking element (5b) of the other oven tray (1a, 1b, 1c) rotated relative to the latter. [3] Stackable oven tray (1) according to claim 2, characterized by the following feature: - the angle of rotation (α) is greater than 30°, 35°, 40°, 45°, 50°, 55° or 60° and less than 65°, 55°, 50°, 45°, 40° or 35° and preferably 45°. [4] Stackable baking tray (1) according to claim 2 or 3, characterized bythe following features: - the shape of the first lower locking element (6a) corresponds to the shape of the first upper locking element (5a); and / or - the shape of the second lower locking element (6b) corresponds to the shape of the second upper locking element (5b). [5] Stackable baking tray (1) according to one of claims 2 to 4, characterized by the following features: - in a plan view of the underside (2a) of the base (2), the first lower locking element (6a) comprises a recess and in a plan view of the upper side (3a) of the surrounding wall (3), the first upper locking element (5a) comprises a projection; and / or - in a plan view of the underside (2a) of the base (2), the second lower locking element (6b) comprises a recess and in a plan view of the upper side (3a) of the surrounding wall (3), the second upper locking element (5b) comprises a projection. [6] Stackable baking tray (1) according to one of claims 2 to 5, characterized by the following features: - the first upper locking element (5a) is equidistant from the center (7) as the first lower locking element (6a); and / or - the second upper locking element (5b) is equidistant from the center (7) as the second lower locking element (6b). [7] Stackable baking tray (1) according to one of claims 2 to 6, characterized by the following features: - the first upper locking element (5a) is equidistant from the center (7) as the second upper locking element (5b); and / or - the first lower locking element (6a) is equidistant from the center (7) as the second lower locking element (6b). [8] Stackable baking tray (1) according to one of claims 2 to 7, characterized by the following features: - the peripheral wall (3) comprises on its upper side (3a) a flange (8) which extends outwards; - the first upper locking element (5a) is arranged in a first part (8a) of the flange (8); - the second upper locking element (5b) is arranged in a second part (8b) of the flange (8). [9] Stackable oven tray (1) according to claim 8, characterized by the following features: - the flange (8) extends along most or all of the upper side (3a) of the peripheral wall (3); or - the flange (8) extends only in the area in which the first upper locking element (5a) and the second upper locking element (5b) are arranged. [10] Stackable baking tray (1) according to claim 8 or 9, characterized by the following feature: - the flange (8) extends further outwards from the upper side (3a) of the circumferential wall (3) in the regions in which the first upper locking element (5a) and the second upper locking element (5b) are arranged compared to other regions which are free of the first and second upper locking elements (5a, 5b). [11] Stackable baking tray (1) according to one of claims 8 to 10, characterized by the following feature: - the flange (8) is arranged parallel but spaced from the base (2). [12] Stackable baking tray (1) according to one of claims 2 to 11, characterized by the following features: - the peripheral wall (3) comprises a first bulge (10a), wherein the first lower locking element (6a) is arranged in the area of ​​the first bulge (10a) in the base (2); and / or - the circumferential wall (3) comprises a second bulge (10b), wherein the second lower locking element (6b) is arranged in the area of ​​the second bulge (10b) in the base (2). [13] Stackable baking tray (1) according to one of claims 2 to 12, characterized by the following features: - the first lower locking element (6a) itself is arranged on the base (2) of the oven tray (1) rotated by the angle of rotation (α), so that by rotating the oven tray (1) by the angle of rotation (α), the first lower locking element (a) assumes the same angular position as the first upper locking element (5a) of the other oven tray (1a, 1b, 1c); and / or - the second lower locking element (6b) itself is arranged on the base (2) of the oven tray (1) rotated by the angle of rotation (α), so that by rotating the oven tray (1) by the angle of rotation (α) the second lower locking element (6b) assumes the same angular position as the second upper locking element (5b) of the other oven tray (1a, 1b, 1c); [14] Stackable baking tray (1) according to one of claims 2 to 13, characterized by the following features: - the first lower locking element (6a) comprises an arcuate profile in a plan view of the underside (2a) of the base (2); the first upper locking element (5a) comprises an arcuate profile in a plan view of the upper side (3a) of the surrounding wall (3); and / or - the second lower locking element (6b) comprises an arcuate profile in a plan view of the underside (2a) of the base (2); the second upper locking element (6a) comprises an arcuate profile in a plan view of the upper side (3a) of the circumferential wall (3). [15] Stackable oven tray (1) according to one of the preceding claims, characterized by the following feature: - the base (2) of the oven tray (1) is penetrated in one area by a plurality of holes (11) for air exchange during the baking process. [16] Stackable oven tray (1) according to claim 15, characterized by the following feature: - the area of ​​the base (2) through which the holes (11) pass is raised relative to the other area of ​​the base (2) which is free of holes and projects further into the receiving space (4). [17] Stackable oven tray (1) according to one of the preceding claims, characterized bythe following feature: - the oven tray (1) is a one-piece laser and / or punched and / or embossed and / or bent part. [18] Stackable oven tray (1) according to one of the preceding claims, characterized by the following feature: - the oven tray (1) contains enamel. [19] Stackable oven tray (1) according to one of the preceding claims, characterized by the following feature: - the oven tray (1) is constructed point-symmetrically to the center (7). [20] Stack (100) of a first oven tray (1) and at least one second oven tray (1a), wherein the first and second oven trays (1, 1a) are constructed according to one of the preceding claims, characterized by the following feature: - the second oven tray (1a) is placed with its first lower locking element (6a) on the first upper locking element (5a) of the first oven tray (1), so that in a plan view of the stack (1) the first oven tray (1) and the second oven tray (1a) are offset from one another by the angle of rotation (α). [21] Stack (100) according to claim 20, characterized by the following feature: - the first and second oven trays (1, 1a) have a cross-section that deviates from a round shape, so that when viewed from above onto the top side (3a) of the surrounding wall (3) of the second oven tray (1a), the receiving space (4) of the first oven tray (1) is visible, thereby improving air exchange during the baking process.

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