Holding device for a tray in a cooking compartment of a cooking appliance, cooking appliance and method for attaching a holding device for a tray in a cooking compartment of a cooking appliance

Abstract

A holding device (10) for a tray (tr) in a cooking compartment (CD) of a cooking appliance (CA), comprising a front vertical bar (V1) and a rear vertical bar (V2) which are arranged parallel to each other and wherein the rear vertical bar (V2) is spaced apart from the front vertical bar (V1) by a predefined horizontal distance (d-h); at least one pair of horizontal guide bars (P1, P2, …) for guiding the tray (tr) between them and along a horizontal direction, wherein the horizontal guide bars (P1, P2, …) are fixedly connected to the front vertical bar (V1) and to the rear vertical bar (V2); wherein the front vertical bar (V1) and the rear vertical bar (V2) each comprise an upper bent end region (UBE1, UBE2) at their upper ends which is each bent from the vertical direction under a predefined angle and the upper bent end region (UBE1) of the front vertical bar (V1) pointing towards the rear vertical bar (V2) and the upper bent end region (UBE2) of the rear vertical bar (V2) pointing in the same direction as the upper bent end region (UBE1) of the front vertical bar (V1), and wherein the front vertical bar (V1) comprises a U-shaped end region (U) at its lower end with the U-shape opened in the vertical direction, and wherein the rear vertical bar (V2) comprises a lower bent end region (LBE2) at its lower end which is bent from the vertical direction under a predefined angle and pointing in the same direction as the upper bent end region (UBE1) of the front vertical bar (V1) and away from the front vertical bar (V1); and wherein the holding device (10) further comprises a first upper holding means (F1) for resting the upper bent end region (UBE1) of the front vertical bar (V1) on and a second upper holding means (F2) for resting the upper bent end region (UBE2) of the rear vertical bar (V2) on, wherein the first upper holding means (F1) and the second upper holding means (F2) can be fixedly attached to an interior side wall (SW) of the cooking compartment (CD) and having a resting part (RP) for leaning the upper bent end region (UBE1, UBE2) on; and a lower holding means (F3) for leaning the lower bent end region (LBE2) to, wherein the lower holding means (F3) can be fixedly attached to an interior side wall (SW) of the cooking compartment (CD); and a screw member (SM) by which the U-shaped end region (U) can be fixedly attached to the interior side wall (SW) of the cooking compartment (CD) by screwing the screw member (SM) to the interior side wall (SW) thereby leaning a contact area of the screw member (SM) to the U-shaped end region (U).

Description

[0001] Holding device for a tray in a cooking compartment of a cooking appliance, cooking appliance and method for attaching a holding device for a tray in a cooking compartment of a cooking appliance

[0002] FIELD OF THE INVENTION

[0003] The present invention relates to holding device for a tray in a cooking compartment of a cooking appliance and to a cooking appliance and to a method for attaching a holding device for a tray in a cooking compartment of a cooking appliance.

[0004] BACKGROUND OF THE INVENTION

[0005] For placing a tray in the cooking compartment a holding structure is needed to hold and / or guide the tray in or to a predefined position in the cooking compartment of a cooking appliance. In household appliances there is a need for functional and easy fixation possibilities of the holding bar structures for a tray inside the cooking compartment. The holding bars must be fixed to the inner sidewalls of the cooking compartment thereby keeping the openings for attaching the holding bars well sealed against heat and steam (if the cooking appliance provides a steam function). For known solutions of holding structures it is desired to find an improvement for the way of fixation under provision of a high sealing level at the openings in the interior side walls of the cooking compartment.

[0006] Document EP 3567315 A1 describes a rack system for a cooking appliance cavity which includes a first support unit including a plurality of rack support bars and a first connecting member defining a body portion having the support bars coupled therewith, a first end with a first post and a first stepped segment between the first post and the body portion, and a second end with a second post and a second stepped segment between the second post and the body portion. The system further includes first and second mounting blocks, each defining a channel and a notch extending intersecting with the channel such that a first portion of the channel is open and a second portion of the channel is enclosed. The first and second posts are respectively received in the second portions of the channels of the first and second mounting blocks.

[0007] SUMMARY OF THE INVENTION

[0008] It is an object of the invention to improve and simplify the fixation of the vertical bars of the holding device to a cooking compartment. Further, it is an object to keep an effective sealing regarding heat and steam of the interior of the cooking compartment at the regions where holding means and screw members are applied to sidewalls of the cooking compartment.

[0009] The object is solved by the subject-matter of the independent claims.

[0010] The present invention pertains a holding device for a tray in a cooking compartment according to claim 1, to a cooking appliance according to claim 9 and to a method for attaching a holding device for a tray in a cooking compartment of a cooking appliance according to claim 11.

[0011] Preferred embodiments are subject of the dependent claims.

[0012] According to the invention the holding device for a tray in a cooking compartment of a cooking appliance comprises a front vertical bar and a rear vertical bar which are arranged parallel to each other and wherein the rear vertical bar is spaced apart from the front vertical bar by a predefined horizontal distance; at least one pair of horizontal guide bars for guiding the tray between them and along a horizontal direction, wherein the horizontal guide bars are fixedly connected to the front vertical bar and to the rear vertical bar; wherein the front vertical bar and the rear vertical bar each comprise an upper bent end region at their upper ends which is each bent from the vertical direction under a predefined angle (for example 90 degrees against the vertical direction) and the upper bent end region of the front vertical bar pointing towards the rear vertical bar or away from it and the upper bent end region of the rear vertical bar pointing in the same direction as the upper bent end region of the front vertical bar or in a different direction, and wherein the front vertical bar comprises a U-shaped end region at its lower end with the U-shape opened in the vertical direction, and wherein the rear vertical bar comprises a lower bent end region at its lower end which is bent from the vertical direction under the predefined angle and pointing in the same direction as the upper bent end region of the front vertical bar and away from the front vertical bar or in a different direction. The holding device further comprises a first upper holding means for resting the upper bent end region of the front vertical bar on and a second upper holding means for resting the upper bent end region of the rear vertical bar on, wherein the first upper holding means and the second upper holding means can be fixedly attached to an interior side wall of the cooking compartment and having a resting part for leaning the upper bent end region on; and further comprising a lower holding means for leaning the lower bent end region to, wherein the lower holding means can be fixedly attached to an interior side wall of the cooking compartment; and a screw member by which the U-shaped end region can be fixedly attached to the interior side wall of the cooking compartment by screwing the screw member to the interior side wall thereby leaning a contact area of the screw member to the U-shaped end region.

[0013] The horizontal guide bars can represent an upper and a lower guide bar for the tray at a predefined distance between each other.

[0014] The tray can be a food tray or any other type of trays for a cooking appliance.

[0015] The vertical bars and support bars can have mainly a cylindrical shape with predefined radiuses. The vertical and horizontal direction can be defined according to the interior of the compartment of a cooking appliance when mounted or positioned for use. The upper bent end region with its part which is angled relative to the vertical part of the front vertical bar can be hanged to the upper side of the first upper holding means. Similar, the upper bent end region (angled part deviating from the vertical section of the rear vertical bar) can be hanged to the upper side of the second upper holding means.

[0016] Thereby, the whole bar structure of the holding device at that particular sidewall can be hanged to the two upper holding means holding its entire weight.

[0017] The screw member can be or can comprise a standard screw, for example M5. Further, the screw member can have a counter screw part which is placed in the opening of the cooking compartment (into its lateral sidewall at the location foreseen for leaning the lower bent end region to when the front vertical bar is hanged to the mounting position). Said counter screw part can, for example comprise a M8 screw and a M8 nut into which the M8 screw can be screwed and the exemplary M5 screw of the screw member can be screwed into the counter screw part .

[0018] By using the screw member the bar structure can in the hanging position (which can be recognized as the mounting position) be rigidly fixed to the lateral sidewall of the cooking compartment and also be released from it when releasing the screw member again (if needed).

[0019] By means of hooking the lower bent end region around the lower holding means the lower bent end region can further fixedly hold the bar structure within a predefined tolerance also at the rear side leaned to the holding means and thereby to the lateral sidewall of the cooking department. This can be also the case for the corresponding bar regions of the holding device which face the remaining holding means. A deviation of the bar structure further than the mentioned tolerance in a direction perpendicular to the sidewall and to the interior of the cooking compartment can thereby be avoided also at the rear side (when in mounting position). The mentioned holding device allows a fixation of the bar structure to the sidewall, for example by pushing the particular bent end regions to the corresponding holding means and by fixing one screw member in a simple and quick way. The connection can be easily released again and seals the openings at the fixation positions against heat and steam transfer.

[0020] The U-shaped region can have a predefined radius, also the bent parts which can be bent in curved manner.

[0021] According to a further embodiment of the holding device the first upper holding means and the second upper holding means and / or the lower holding means are each formed as a knob with a cross-section of rectangular or at least partly circular shape with a circular or flat resting surface of the resting part having a radius equal or smaller than a bending radius the upper bent end region of the front vertical bar or of the rear vertical bar.

[0022] According to a further embodiment of the holding device the knob has a circular inner margin and a circular outer margin adjacent to and on opposite sides of the circular resting surface and each having a radius greater than the radius of the circular resting surface.

[0023] According to a further embodiment of the holding device the circular resting surface has an axial (between the margins) width of equal or greater than the diameter of the front vertical bar at its upper bent end region.

[0024] According to a further embodiment the holding device further comprises a screw nut and a contact area for the U-shaped end region which screw nut is attachable to the interior side wall of the cooking compartment and to which contact area the U-shaped end region can be leaned. According to a further embodiment of the holding device the contact area for the 11- shaped end region of the screw nut is formed as a seal for an opening in the interior side wall for sealing the interior of the cooking compartment.

[0025] A screw member by which the U-shaped end region can be fixedly attached to the interior side wall by screwing the screw member to the interior side wall (where a nut and a screw receiving part can be placed) can help to lean a contact area of the screw member to the U-shaped end region and thereby push the U-shaped region towards the components of the screw member which are located in or at the sidewall. The screw itself can then project through the U-part of the U-shaped region and screwed into.

[0026] According to a further embodiment of the holding device the front vertical bar and the rear vertical bar have at least partly a cylindrical surface area.

[0027] According to the invention the cooking appliance comprises a cooking compartment and a first holding device and a second holding device each according to the invention, which are arranged at (lateral and interior) sidewalls of the cooking compartment and inside the cooking compartment.

[0028] The holding device can have all its components twice, in particular one arrangement at one lateral sidewall of the compartment and another arrangement at the opposite lateral sidewall of the compartment, having the upper support bars respectively at same heights and the lower support bars respectively at same heights (vertical) for receiving the tray in a particular horizontal plane (between the upper and lower horizontal plane or at the lower horizontal plane). The vertical support bars (front and rear ones) are mounted to the lateral sidewalls inside the compartment.

[0029] According to a further embodiment of the cooking appliance the cooking appliance is a built-in oven or a standalone oven. According to a further embodiment of the holding device the predefined angle can be between 80 degrees and 110 degrees. Each bent end region can have the same angle or another one.

[0030] According to the invention the method for attaching a holding device for a tray in a cooking compartment of a cooking appliance comprising the steps of providing a first and a second a holding device according to the invention and attaching a lower holding means and a first upper holding means and a second upper holding means to an interior side wall of the cooking compartment; pushing the front vertical bar towards the first upper holding means and the rear vertical bar towards the second upper holding means and resting the upper bent end region of the front vertical bar on a top side and resting part of the first upper holding means and resting the upper bent end region of the rear vertical bar on a top side and resting part of the second upper holding means and hooking the lower bent end region around a lower part of the lower holding means and thereby leaning the lower bent end region to the lower holding means; and attaching the U-shaped end region fixedly to the interior side wall of the cooking compartment by screwing the screw member to the interior side wall thereby leaning a contact area of the screw member to the U-shaped end region.

[0031] BRIEF DESORPTION OF THE DRAWINGS

[0032] The invention will be explained in greater detail with reference to exemplary embodiments depicted in the drawings as appended.

[0033] The accompanying drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification. The drawings illustrate a comparative embodiment and embodiments of the present invention and together with the description serve to explain the principles of the invention. Other embodiments of the present invention and many of the intended advantages of the present invention will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.

[0034] Fig. 1 shows a cooking appliance with a holding device for a tray according to an embodiment of the invention.

[0035] Fig. 2 shows a view of a holding device according to an embodiment of the invention.

[0036] Fig. 3 shows a view of a holding device according to an embodiment of the invention from a lateral view.

[0037] Fig. 4 shows a view of a holding device as shown in Fig. 3 without the holding means.

[0038] Fig. 5 shows a detailed view of a holding device with an upper bent end region according to an embodiment of the invention.

[0039] Fig. 6 shows a detailed view of a holding device with a U-shaped end region according to an embodiment of the invention.

[0040] Fig. 7 shows a detailed view of a holding device with a lower bent end region according to an embodiment of the invention.

[0041] Fig. 8 shows a detailed view of a holding device with a lower bent end region as shown in Fig. 6 in a cut view through the screw member. DETAILED DESCRIPTION OF THE INVENTION

[0042] Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of alternate and / or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the present invention. Generally, this application is intended to cover any adaptations or variations of the specific embodiments discussed herein.

[0043] Fig. 1 shows a cooking appliance with a holding device for a tray according to an embodiment of the invention.

[0044] The cooking appliance CA comprises a cooking compartment CD which is shown from a perspective front side but the front door of the cooking appliance CA is not shown. A holding device 10 according to the invention is arranged at lateral sidewalls SW of the cooking compartment CD and inside the cooking compartment CD. The lateral sides of the cooking compartment CD regard the right and left sidewalls SW when seen from front view from the opening of the cooking compartment CD. The cooking appliance CA can, for example, be a built-in oven or a standalone oven.

[0045] The holding device 10 for a tray tr is shown with the front vertical bar V1 and several pairs of horizontal guide bars P1 and P2 for guiding the tray tr between them and along a horizontal direction, wherein the horizontal guide bars PI, P2 are fixedly connected to the front vertical bar V1 (and to the rear vertical bar V2, not shown).

[0046] Further, the upper bent end region UBE1 at the upper end of the front vertical bar V1 is shown at a position arranged at the first upper holding means F1, where the upper bent end region UBE1 of the front vertical bar V1 is rested on. The first upper holding means F1 (and the second upper holding means F2) can be fixedly attached to an interior side wall SW of the cooking compartment CD and also protrude through the sidewall SW. This can be seen at the right sidewall SW where it is shown that the first and second upper holding means (F1, F2) stretch through the sidewall SW (also through the left sidewall, not shown).

[0047] Similar, it is shown how the screw member SM is attached to the U-shaped end region U and to the inner sidewall SW at the lower end of the front vertical bar V1.

[0048] Fig. 2 shows a view of a holding device according to an embodiment of the invention.

[0049] In the case of Fig. 2 the holding bar structures for both lateral sidewalls of the cooking compartment are shown (without the sidewalls itself).

[0050] The holding device 10 comprises a front vertical bar V1 and a rear vertical bar V2 which are arranged parallel to each other and wherein the rear vertical bar V2 is spaced apart from the front vertical bar V1 by a predefined horizontal distance d-h. Further, pairs of horizontal guide bars P1 and P2 for guiding the tray are present, wherein the horizontal guide bars P1 (lower bar) and P2 (upper bar) are fixedly connected to the front vertical bar V1 and to the rear vertical bar V2; wherein the front vertical bar V1 and the rear vertical bar V2 each comprise an upper bent end region UBE1 and UBE2 at their upper ends which is each bent from the vertical direction under at least 90 degrees and the upper bent end region UBE1 of the front vertical bar V1 pointing towards the rear vertical bar V2 and the upper bent end region UBE2 of the rear vertical bar V2 pointing in the same direction as the upper bent end region UBE1 of the front vertical bar V1.

[0051] Further, the front vertical bar V1 comprises a U-shaped end region U at its lower end with the U-shape opened in the vertical direction, and wherein the rear vertical bar V2 com- prises a lower bent end region LBE2 at its lower end which is bent from the vertical direction under at most 90 degrees and pointing in the same direction as the upper bent end region UBE1 of the front vertical bar V1 and away from the front vertical bar V1.

[0052] The holding device 10 further comprises a first upper holding means F1 for resting the upper bent end region UBE1 of the front vertical bar V1 on and a second upper holding means F2 for resting the upper bent end region UBE2 of the rear vertical bar V2 on, wherein the first upper holding means F1 and the second upper holding means F2 can be fixedly attached to an interior side wall of the cooking compartment and having a resting part RP for leaning the corresponding upper bent end region UBE1 and UBE2 on (from top).

[0053] Further the holding device 10 has a lower holding means F3 for leaning the lower bent end region LBE2 to, wherein the lower holding means F3 can be fixedly attached to an interior side wall of the cooking compartment; and a screw member SM by which the U- shaped end region U can be fixedly attached to the interior side wall of the cooking compartment by screwing the screw member SM to the interior side wall thereby leaning a contact area of the screw member SM to the U-shaped end region. The bar structure of the holding device for the other sidewall (right) can be the same as for the left sidewall, wherein not all reference signs are shown in Fig. 2.

[0054] Fig. 3 shows a view of a holding device according to an embodiment of the invention from a lateral view.

[0055] In Fig. 3 the bar structure for the left sidewall is shown (when seen from the opening of the compartment). The upper bent end regions UBE1 and UBE2 are both directed towards the interior of the compartment when mounted to the sidewalls (shown in Fig. 1). Fig. 3 corresponds to Fig. 2 and it can be further estimated that the resting part RP for both the first upper holding means F1 and the second upper holding means F2 is located at their upper sides (of the knob) such that the bar of the corresponding upper bent end region UBE1 und UBE2 can be leaned on (may be by sliding it from the front towards the rear side of the compartment at which sidewall the knob is fixedly arranged before the bar structure is attached thereto). In the mounting position of the bar structure the entire bar structure hangs on the knobs of the first upper holding means F1 and the second upper holding means F2.

[0056] In other words, it is possible to attach the holding device 10 for a tray in a cooking compartment by providing S1 a holding device 10 according to the invention; further attaching S2 the lower holding means F3 and a first upper holding means F1 and a second upper holding means F2 to an interior side wall (not shown of the cooking compartment); pushing S3 the front vertical bar V1 towards the first upper holding means F1 and the rear vertical bar V2 towards the second upper holding means F2 (arrows) and resting the upper bent end region UBE1 of the front vertical bar V1 on a top side and resting part RP of the first upper holding means F1 and resting the upper bent end region UBE2 of the rear vertical bar V2 on a top side and resting part RP of the second upper holding means F2 and hooking S3a the lower bent end region LBE2 around a lower part of the lower holding means F3 and thereby leaning the lower bent end region LBE2 to the lower holding means F3; and attaching S4 the U-shaped end region U fixedly to the interior side wall of the cooking compartment by screwing the screw member SM to the interior side wall thereby leaning a contact area of the screw member SM to the U-shaped end region U.

[0057] Fig. 4 shows a view of a holding device as shown in Fig. 3 without the holding means.

[0058] As can be seen from Fig. 4 the upper bent end regions UBE1 and UBE2 and the lower bent end region LBE2 are both angled under 90 degrees from the vertical direction and pointing towards the rear direction.

[0059] Fig. 5 shows a detailed view of a holding device with an upper bent end region according to an embodiment of the invention. The upper bent end regions UBE1 of the front vertical bar V1 is shown in detail and it can be seen that it is bent towards the rear side such that the end extends in the horizontal plane. The upper bent end regions UBE1 extends above a pair of horizontal guide bars P1 and P2 and extend horizontally beyond the resting part RP of the knob of the first upper holding means F1 in order to hang the front vertical bar V1 with its weight thereto. The resting part RP of the knob can have a lateral (axial) width being slightly greater than a diameter of the bar part of the upper bent region UBE1. In Fig. 5 the sidewall is not shown to which the knob is mounted.

[0060] Fig. 6 shows a detailed view of a holding device with a U-shaped end region according to an embodiment of the invention.

[0061] The screw member SM by which the U-shaped end region U can be fixedly attached to the interior side wall by screwing the screw member SM (its screw) to the interior side wall (where a nut and a screw receiving part can be placed) can help to lean a contact area of the screw member SM to the U-shaped end region U and thereby push the u-shaped region towards the components of the screw member which are located in or at the sidewall. The screw itself can then project through the U-part of the U-shaped region and screwed into.

[0062] Fig. 7 shows a detailed view of a holding device with a lower bent end region according to an embodiment of the invention.

[0063] In Fig. 7 the lower bent end region LBE2 is shown from the a perspective view from the rear side. The lower holding means F3 can be embodied as a knob with an outer margin OM and an inner margin IM which can have a distanced between each other about the diameter of the lower bent end region LBE2 plus a moving tolerance in lateral (axial) direction. The leaning region for the lower bent end region LBE2 can also be understood as a resting part RP since the lower bent end region LBE2 can be hooked under (around) the knob of the lower holding means F3 thereby holding the bar structure and the rear vertical bar at the lower holding means F3 and at the sidewalls (at the holding means). The lower holding means F3 can also have a screw part which extends into the sidewalls of the cooking compartment when mounted and a screw nut SN can help to fix the lower holding means F3 at the sidewall (from its outer side). Same as for the other holding means and for the screw member at the U-shaped part (not shown) the inner margin IM can form a plate which can seal the interior of the cooking compartment from the opening (for mounting the holding means and screw members) against heat and steam transfer. For all holding means (F1 to F3) a screw nut SN can be fixedly arranged inside an opening of the sidewalls and the know with its screw-tip can be rotated (screwed) into the screw nut thereby pushing the inner margin IM to the sidewall.

[0064] Fig. 8 shows a detailed view of a holding device with a lower bent end region as shown in Fig. 6 in a cut view through the screw member.

[0065] A cut through the screw member SM at the U-shaped region U shows the screw nut SN which is located in an opening of the sidewall SW and a screw receiving component SM-1 with a screw opening for the screw part SM-2 (screw) itself. The screw receiving component SM-1 can be screwed into the nut SN thereby pushing a plate (inner margin IM) towards the sidewall SM sealing the opening in the sidewall SM (having a greater radius than the opening). Further, once the vertical front bar V1 is positioned at the mounting position the screw SM-2 can be screwed through the U-shape and into the screw opening of the screw receiving component SM-1. In other words, the counter screw part (SM-1) can, for example comprise a M8 screw and a M8 nut into which the M8 screw can be screwed and the exemplary M5 screw of the screw member (SM-2) can be screwed into the counter screw part (SM-1).

[0066] In the foregoing detailed description, various features are grouped together in one or more examples or examples with the purpose of streamlining the disclosure. It is to be understood that the above description is intended to be illustrative, and not restrictive. It is intended to cover all alternatives, modifications and equivalents.

Claims

CLAIMS1. Holding device (10) for a tray (tr) in a cooking compartment (CD) of a cooking appliance (CA), comprising:- a front vertical bar (V1) and a rear vertical bar (V2) which are arranged parallel to each other and wherein the rear vertical bar (V2) is spaced apart from the front vertical bar (V1) by a predefined horizontal distance (d-h);- at least one pair of horizontal guide bars (PI , P2, ...) for guiding the tray (tr) between them and along a horizontal direction, wherein the horizontal guide bars (PI, P2, ...) are fixedly connected to the front vertical bar (V1) and to the rear vertical bar (V2); wherein the front vertical bar (V1) and the rear vertical bar (V2) each comprise an upper bent end region (UBE1, UBE2) at their upper ends which is each bent from the vertical direction under a predefined angle and the upper bent end region (UBE1) of the front vertical bar (V1) pointing towards the rear vertical bar (V2) or away from it and the upper bent end region (UBE2) of the rear vertical bar (V2) pointing in the same direction as the upper bent end region (UBE1) of the front vertical bar (V1) or in a different direction, and wherein the front vertical bar (V1) comprises a U-shaped end region (U) at its lower end with the U-shape opened in the vertical direction, and wherein the rear vertical bar (V2) comprises a lower bent end region (LBE2) at its lower end which is bent from the vertical direction under the predefined angle and pointing in the same direction as the upper bent end region (UBE1) of the front vertical bar (V1) and away from the front vertical bar (V1) or in a different direction; and wherein the holding device (10) further comprises- a first upper holding means (F1) for resting the upper bent end region (UBE1) of the front vertical bar (V1) on and a second upper holding means (F2) for resting the upper bent end region (UBE2) of the rear vertical bar (V2) on, wherein the first upper holding means (F1) and the second upper holding means (F2) can be fixedly attached to an interior side wall (SW) of the cooking compartment (CD) and having a resting part (RP) for leaning the upper bent end region (UBE1, UBE2) on; and- a lower holding means (F3) for leaning the lower bent end region (LBE2) to, wherein the lower holding means (F3) can be fixedly attached to an interior side wall (SW) of the cooking compartment (CD); and- a screw member (SM) by which the U-shaped end region (U) can be fixedly attached to the interior side wall (SW) of the cooking compartment (CD) by screwing the screw member (SM) to the interior side wall (SW) thereby leaning a contact area of the screw member (SM) to the U-shaped end region (U).

2. Holding device (10) according to claim 1, wherein the first upper holding means (F1) and the second upper holding means (F2) and / or the lower holding means (F3) are each formed as a knob with a cross-section of rectangular or at least partly circular shape with a flat or circular resting surface of the resting part (RP) having a radius equal or smaller than a bending radius of the upper bent end region (UBE1, UBE2) of the front vertical bar (V1) or of the rear vertical bar (V2).

3. Holding device (10) according to claim 2, wherein the knob has a circular inner margin (IM) and a circular outer margin (OM) adjacent to and on opposite sides of the circular resting surface and each having a radius greater than the radius of the circular resting surface.

4. Holding device (10) according to any of claims 2 to 3, wherein the circular resting surface has an axial width of equal or greater than the diameter of the front vertical bar (V1) at its upper bent end region (UBE1).

5. Holding device (10) according to any of claims 1 to 4, further comprising a screw nut (SN) and a contact area for the U-shaped end region (U) which screw nut (SN) is attachable to the interior side wall (SW) of the cooking compartment (CD) and to which contact area the U-shaped end region (U) can be leaned.

6. Holding device (10) according to claim 5, wherein the contact area for the U-shaped end region (U) of the screw nut (SN) is formed as a seal for an opening in the interior side wall (SW) for sealing the interior of the cooking compartment (CD).

7. Holding device (10) according to any of claims 1 to 6, wherein the front vertical bar (V1) and the rear vertical bar (V2) have at least partly a cylindrical surface area.

8. Holding device (10) according to any of claims 1 to 7, wherein the predefined angle can be between 80 degrees and 110 degrees.

9. Cooking appliance (CA) comprising:- a cooking compartment (CD);- a first holding device (10) and a second holding device (10) each according to any of claims 1 to 8, which are arranged at sidewalls (SW) of the cooking compartment (CD) and inside the cooking compartment (CD).

10. Cooking appliance (CA) according to claim 9, wherein the cooking appliance is a built- in oven or a standalone oven.1 1. Method for attaching a holding device (10) for a tray (tr) in a cooking compartment (CD) of a cooking appliance (CA), comprising the steps:- providing (S1) a first and a second holding device (10) according to any of claims 1 to 8;- attaching (S2) a lower holding means (F3) and a first upper holding means (F1) and a second upper holding means (F2) to an interior side wall (SW) of the cooking compartment (CD);- pushing (S3) the front vertical bar (V1) towards the first upper holding means (F1) and the rear vertical bar (V2) towards the second upper holding means (F2) and resting the upper bent end region (UBE1) of the front vertical bar (V1) on a top side and rest-ing part (RP) of the first upper holding means (F1) and resting the upper bent end region (UBE2) of the rear vertical bar (V2) on a top side and resting part (RP) of the second upper holding means (F2) and hooking (S3a) the lower bent end region (LBE2) around a lower part of the lower holding means (F3) and thereby leaning the lower bent end region (LBE2) to the lower holding means (F3); and- attaching (S4) the U-shaped end region (U) fixedly to the interior side wall (SW) of the cooking compartment (CD) by screwing the screw member (SM) to the interior side wall (SW) thereby leaning a contact area of the screw member (SM) to the U- shaped end region (U).

Images