EP2469181B1 - Device for holding a cooked food holder in a cooking chamber of a cooking device and cooking device with such a device - Google Patents

Description

The invention relates to a device for holding a food support in a cooking chamber of a cooking appliance, as well as a cooking appliance with such a device.

In ovens it is known that in the oven support frames are introduced, which serve to hold food supports, such as a grill pan, a baking sheet or a grid. Usually, these support frames are arranged on the vertical side walls of the muffle, which limits the cooking chamber. They can be designed as removable components, for example as a lattice girder. However, it can also be provided that devices are formed integrally in the muffle walls. The always pairwise oppositely designed insertion guides such devices then turn turn Einschubbenen for a food support.

The EP 0 931 985 A2 describes a support device for an oven, in which a pair of side brackets form a guide for a food support. These guides are substantially parallel, but have a curved portion which is bent up to facilitate insertion of the food support between the bracket of the guide.

Also the EP 2 199 686 A1 describes a system for extendable supports of a furnace in which a support is guided by two wire brackets. In this case, these wire bracket are partially bent to maximize the usable volume of the oven space.

Furthermore, in the US 1,191,198 A presented a pull-out device for a furnace, similar to the US 2,466,360 A Bent bracket in a short section to form a stop for a food support to be pulled out.

Finally, the reveals WO 2008/148846 A1 an oven. The document is considered to be the closest prior art.

From the prior art, as shown in FIG Fig. 1 a corresponding device 1 is known, which has two analogous to each other formed supporting frames 2 and 3. These can be arranged on opposite side walls of a muffle, which is not shown. The support frame 2 is constructed of rods and comprises two vertical support rods 4 and 5, on which a plurality of guide rods are always formed in pairs. For example, the two guide rods 6 and 7, which extend parallel to one another, form an insertion guide 8 for the exemplary food support 9 in the form of a grid. As from the illustration in Fig. 1 can be seen, the two guide rods 6 and 7, as well as all other guide rods of the support frames 2 and 3 are formed exclusively in a horizontal plane extending.

If the grid is as shown in Fig. 2 pulled out and then there is another object 10 on the food support 9, so formed due to the resulting weight under the leverage of the front protruding Gargutträgers 9 a force on the trained in the illustration shown guide rods 6 and 7. As can be seen thereby, then bends the upper guide rod 7 relatively far upwards. On the one hand, this is damaged and, if necessary, bent irreversibly upward. A far greater disadvantage, however, is the fact that is arranged by this mechanical instability of the food support 9 at an angle downward relative to the horizontal inclined, which has a size, so that either the food support 9 can slip out completely and / or the on it 10 moves object and possibly undesirably from the food support 9 slips down.

The exceeding of such a predetermined maximum tilt angle down thus harbors the above-mentioned disadvantages. The use of thicker guide rods 6 and 7 has on the one hand cost disadvantages and on the other hand, thereby the support frame 2 and 3 significantly heavier. In addition, this increases the material and manufacturing costs.

It is an object of the present invention to provide a device for holding a food support in the cooking chamber of a cooking appliance and a cooking appliance with a corresponding device, in which high mechanical stability is guaranteed and, in particular in the at least partially extended state of the food support no unwanted bending with respect to then resulting unwanted large tilt angle of the food support arise.

This object is achieved by a device having the features of claim 1, and a cooking appliance having the features of claim 12.

An inventive device for holding a food support in a cooking chamber of a cooking appliance comprises a carrier for receiving the food support comprises a slide-in guide, which is bounded by an upper and a lower guide element. At least one of the guide elements is at least partially curved so that it extends in the vertical direction along the longitudinal axis of the insertion guide at least partially at different height levels. A guide element extending in the horizontal direction is thus designed not to extend in a straight line in a plane perpendicular to the horizontal and thus in a vertical plane, but at least partially curved. Such a design and shaping the mechanical stability can be improved. In particular, it is achieved that in at least partially extended state of the food support, the guide elements are not undesirably bent, so that even an undesirably large tilt angle of the partially extended Gargutträgers is avoidable.

Furthermore, the arcuate shape of a guide element is formed so that the lowest point of a downwardly directed arc shape is approximately at the level of the center of the horizontal longitudinal extent of a guide element. The above aspects are thereby taken into account in a special way.

It is provided that at least one of the guide elements is at least partially curved downwards. This is particularly advantageous in that when pulling out of the food support this automatically tilts forward and down due to the physical weight and by this oppositely directed curvature a particularly mechanically stable design is achieved. The forces occurring on the guide element can be derived by such a specific shape particularly suitable to the ends of the guide element, without an undesirably large deformation occurring at the location of the force on the guide element.

The guide element is thus curved downwards in the vertical plane.

It is further provided that at least one of the guide elements has a continuously downwardly formed arcuate shape, which is formed in particular cornerless. It is preferably provided that that part of the guide element that extends over the length of the insertion guide, this has continuously formed down arc shape. The above advantages can be achieved in a special way.

It is preferably provided that the two guide elements have a rectified arc shape and are arranged parallel to each other. In particular, they have over their entire length a substantially equal vertical distance from each other. The guidance and force introduction and derivation is particularly favored in such a configuration.

It is preferably provided that the curvature of at least one guide element is formed so that the two guide elements are arranged one below the other, that the lowest point of the curvature of the upper guide member is higher in the vertical direction than the two ends of the lower guide member representing the highest points. By this configuration, the handling of the food support during insertion and withdrawal from the device can be particularly advantageous. An abutment or jerking or jamming or spreading is thereby prevented. Nevertheless, this ensures that the above mechanical properties are met.

It is preferably provided that the vertical distance between the lowest point of the upper guide element and one end of the lower guide element is at most 40%, in particular at most 30%, greater than the thickness of the portion of the food support, which extends in the insertion guide, if the food support is arranged in the device. It can also be created by a very compact design of a drawer slide, which also by this design allows the food support is almost completely inserted horizontally and pulled out, but nevertheless, when he tilts down front protruding down no undesirable large forces on the guide elements so that they are not deformed undesirable. Just when the food support already tilts down at approximately half extract and thus virtually causes approximately at the center of the horizontal length of a guide element a force on a guide element, a particularly mechanically stable design can be achieved.

It is preferably provided that the guide elements are rods.

The support of the device is preferably designed as a support frame and constructed entirely of rods. For this purpose, two vertical support rods may be provided, which form the front and rear end of a support frame. Between these then extend in the horizontal direction each paired guide elements, which then define in pairs each an insertion guide and set with regard to their height arrangement a shelf level for the food support.

The guide elements formed as rods preferably have at their ends to bends which extend in a horizontal plane, said plane extending perpendicular to the plane in which the above-mentioned curvature, in particular the downwardly directed arc shape of a guide element is formed. For such a configuration of a bending of the ends, a certain side depth of the insertion guide is defined in the horizontal direction, so that slipping out or falling out of the food support is also prevented here.

The carrier formed as a lattice girder or support frame is preferably formed of metal rods, which may optionally be coated accordingly. This with regard to low wear when used in a cooking chamber, especially in a pyrolysis operation.

It can also be provided that the carrier is reversibly releasably attachable to a muffle wall which limits the cooking space, so that it can be used at any time and removed again.

However, it can also be provided that the device is integrally formed in the muffle wall or the muffle walls with the carriers and, for example, corresponding embossments are formed in the lateral vertical muffle walls.

Preferably, it is provided that the curvature of a guide element in the vertical plane is formed such that a food support arranged in its extended end position on the device is arranged at a maximum tilt angle of less than or equal to 10 ° downwards. By such a configuration, the requirements with regard to excessive tilt angle permanently and reliably taken into account. An undesirable dropping of objects located on the food support on the one hand and the unwanted complete slipping out of the food support from its extended end position can be prevented.

Furthermore, the invention relates to a cooking appliance with a cooking chamber, wherein the cooking appliance has a device according to the invention or an advantageous embodiment thereof.

Preferably, two devices are provided which are arranged opposite to side walls of a muffle and in pairs have opposite insertion guides, in which the food support with opposite sub-areas can be inserted and stored.

By a specific curved wire geometry of the guide elements, the forces are partially redirected and act much lower on the center of the guide element. In particular, at least in part, the lateral ends, which are mechanically firmly connected, are diverted and can then be diverted there. The entire construction is significantly stiffer and the deflection of a guide element under load can be at least significantly reduced.

In addition, the guide at the location of the strongest curvature can be made much narrower than the minimum distance of the planes in known suspension grids, whereby the maximum angle of the accessory is further reduced. This is not possible in the known suspension grids, since it would make the insertion of the accessories or the food support due to a limited space significantly more difficult. The insertion area is now even increased by the new shape according to the invention or an advantageous embodiment thereof, which improves handling for the user. This vertical distance can be adjusted within reasonable tolerances close to the thickness of the accessory or the food support with its introduced into the insertion guide portions. Due to the geometry, a stiffer frame can be produced without additional material costs, which allows a lower starting angle. In addition, the handling when inserting the food support is improved by the larger insertion area. The production can be converted from an old production line into a new one by a few changes. For this purpose, it may be provided that the rods are first welded and in a final step, the upper wire is pulled. Alternatively, the welding of already bent material can take place. The symmetry makes production even cheaper.

In addition, by this specifically curved configuration, a false installation of reversibly removable in the oven and removable again devices can be prevented. The user sees immediately, whether the curvature during installation goes in the wrong direction, immediately recognizing that the installation needs to be changed.

Fig. 1

eine perspektivische Darstellung einer aus dem Stand der Technik bekannten Vorrichtung in einem ersten Zustand;

Fig. 2

eine perspektivische Darstellung der Vorrichtung gemäß Fig. 1 in einem zweiten Zustand;

Fig. 3

eine schematische perspektivische Darstellung eines Ausführungsbeispiels eines erfindungsgemäßen Gargeräts;

Fig. 4

eine perspektivische Darstellung eines Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung;

Fig. 5

eine seitliche Ansicht eines Teilausschnitts eines Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung; und

Fig. 6

ein weiteres Ausführungsbeispiel einer Teilkomponente einer erfindungsgemäßen Vorrichtung.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

Fig. 1

a perspective view of a known from the prior art device in a first state;

Fig. 2

a perspective view of the device according to Fig. 1 in a second state;

Fig. 3

a schematic perspective view of an embodiment of a cooking appliance according to the invention;

Fig. 4

a perspective view of an embodiment of a device according to the invention;

Fig. 5

a side view of a partial section of an embodiment of a device according to the invention; and

Fig. 6

a further embodiment of a sub-component of a device according to the invention.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In Fig. 3 is shown in a simplified perspective view of a baking oven 11 as a cooking appliance. This includes a cooking chamber 12, which by a in Fig. 3 not shown door is closed. The cooking chamber 12 is bounded by a muffle 13. The muffle 13 has two vertical side walls 14 and 15.

In the illustration according to Fig. 3 is simplified on the vertical side wall 15, a carrier in the form of a lattice girder or a support frame 2 'arranged. At the opposite vertical side wall 14, a correspondingly formed support frame is arranged.

In the exemplary embodiment, the support frame 2 ', which is a device 1' for holding a food support 9 ( Fig. 4 ) serves, reversibly and thus non-destructively releasably attachable to the inside of the vertical side wall 15.

The support frame 2 'constructed in the exemplary embodiment from rods comprises the two support rods or support rods 4 and 5. In between, a plurality of rod-shaped guide elements extend in the horizontal direction (y-direction). In this case, by way of example, two rod-shaped guide elements 6 'and 7' form an insertion guide 8 '.

The arranged on the vertical side wall 14 further support frame of the device 1 'has an analogous configuration in guide elements, which are arranged in the vertical direction (z-direction) at the same height level.

In Fig. 4 the device 1 'is shown, wherein it is taken from the cooking chamber 12 here. The support frame 2 'on the one hand and the other support frame 3' on the other hand can be seen. The food support 9 is exemplified in an insertion guide 8 'introduced.

As from the illustration in Fig. 4 can be seen, the guide elements 6 'and 7' and also all other guide elements of the two support frames 2 'and 3' arcuately curved downwards.

This means that, for example, a guide element 6 'viewed in the vertical direction and thus in the z-direction along the y-axis has a downwardly curved corner-free arc shape, as shown in FIG Fig. 4 is shown. It can be seen that an extending in the y-direction portion 61 extends with an arc shape downwards, which develops from a first end 62 is continuously curved downwards, to about a central point 63, then the lowest point of the Bogeriform is reached, from which the portion 61 then curves back up to the opposite end 64 upwards.

At the ends 62 and 64, the guide element 6 is angled in a horizontal plane and thus in the x-y plane outwards in the direction of the rods 4 and 5.

In a corresponding manner, the associated guide element 7 'is formed, so that the adjacent guide elements 6' and 7 ', which form an insertion guide 8', extend parallel to one another.

As can be seen, the arcuate curvature of the portion 61 extends in the y-z plane and thus in a vertical plane.

In Fig. 5 is a side view of a partial section of the device 1 ', as shown in Fig. 4 shown is shown. An insertion guide 8 'with the guide elements 6' and 7 'and the above-mentioned embodiments of the guide elements 6' and 7 'can be seen. A vertical distance d1, which is formed between the lowest point 63 of the guide element 7 'and the highest points, which are formed by the ends 62 and 64 of the guide element 6', preferably slightly larger than a thickness d2 of a portion 16 of the food support 9th , wherein the portion 16 is provided for insertion into a slide-in guide 8 '.

As in the illustration according to Fig. 5 can be seen, the food support 9 is inserted in the lower insertion guide 8 'and to the extent that it is located at its front stop. As can be seen, only a very small tilt angle arises downwards, and due to the shape of the upper guide element 7 ', this is deformed only very slightly. As in the sketchy figure for representation in Fig. 5 2, forces K acting through this configuration are defined to the ends 62 and 64 via this specific arc shape, and the deformation due to the force of the guide element 7 'is minimized.

In Fig. 6 Further embodiments of a support frame 2 'are shown, wherein it is provided that guide elements 7' are formed according to the above explanation and guide elements 6 "have no such arch shape, but with its central part 61 'extend completely straight in the horizontal direction.

LIST OF REFERENCE NUMBERS

1, 1 '

contraption

2, 2 ', 3, 3'

support frames

4.5

carrying bars

6, 6 ', 6 ", 7, 7'

guide bars

8, 8 '

insertion guide

9

food support

10

object

11

oven

12

oven

13

muffle

16

Part of the food support

14, 15

vertical side walls

61, 61 '

subregion

62

first end

63

central point

64

opposite end

d1

distance

d2

thickness

K

force

Claims (10)

1. Device for holding a cooked food holder (9) in a cooking chamber (13) of a cooking device (11), which has a support (2, 2', 3, 3') which has at least one insertion guide (8, 8') for receiving the cooked food holder (9), said insertion guide (8, 8') being delimited by an upper and a lower guide element (6, 6', 7, 7'), wherein at least one of the guide elements (6, 6', 7, 7') is embodied at least partially to be curved such that when viewed in the vertical direction it extends along the longitudinal axis (A) of the insertion guide (8, 8') at least in sections at different height levels, wherein a partial region (61) of a guide element (6', 7') extending over the length of the insertion guide (8') has a downwardly oriented arc shape which has its deepest point (63) in the centre of said length and is embodied over the whole length of the guide element (6', 7'), wherein at least one of the guide elements (6', 7') is curved downwards at least in sections, characterised in that at least one of the guide elements (6', 7') has a downwardly embodied continuous arc shape.
2. Device according to claim 1, characterised in that both guide elements (6', 7') have a rectified arc shape and are arranged running parallel to each other.
3. Device according to one of the preceding claims, characterised in that the curvature of at least one guide element (6', 7') is embodied such that, and the two guide elements (6', 7') are arranged among themselves such that, a deepest point (63) of the curvature of the upper guide element (7') lies higher in the vertical direction than the two ends (62, 64) of the lower guide element (6') representing the highest-lying points.
4. Device according to one of the preceding claims, characterised in that the guide elements (6', 7') are rods.
5. Device according to claim 4, characterised in that the rods at their ends (62, 64) have bends which extend in a plane which runs perpendicular to the plane in which the curvature is embodied.
6. Device according to one of the preceding claims, characterised in that the support is embodied as a support frame (2', 3') and is composed of rods.
7. Cooking device with a cooking chamber (12) which has a device (1') according to one of the preceding claims.
8. Cooking device according to claim 7, characterised in that two supports (2', 3') are provided which are arranged on side walls (14, 15) of a muffle (13) and have opposing pairs of insertion guides (8') into which the cooked food holder (9) can be inserted and stored.
9. Cooking device according to claim 7 or 8, characterised in that the cooking device comprises the cooked food holder (9) and in the case of the device the curvature of at least one guide element (6', 7') is embodied such that, and the two guide elements (6', 7') are arranged among themselves such that, a deepest point (63) of the curvature of the upper guide element (7') lies higher in the vertical direction than the two ends (62, 64) of the lower guide element (6') representing the highest-lying points, wherein the vertical distance (d1) between the deepest point (63) of the upper guide element (7') and an end (62, 64) of the lower guide element (6') is a maximum of 40%, in particular a maximum of 30%, greater than the thickness (d2) of the partial region (16) of the cooked food holder (9) which extends in the insertion guide (8') when the cooked food holder (9) is arranged in the device (1').
10. Cooking device according to one of claims 7 to 9, characterised in that the cooking device comprises the cooked food holder (9) and in the case of the device the curvature is embodied such that the cooked food holder (9) arranged in its extended end position on the device (1') is arranged inclined downwards at a maximum tilt angle of less than or equal to 10°.

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