EP2436990B1 - Cooking device - Google Patents

Description

The invention relates to a cooking appliance according to the preamble of claim 1.

In cooking appliances baking trays are added to bring in several levels one above the other cooking food in the cooking appliance muffle. When fitting the baking tray this is pulled out of the cooking appliance. For this purpose, guides are arranged on the side walls of the cooking appliance muffle. In a far out of the oven state, the baking tray is held only at its rear area. Thus, the weight of the food causes a bending moment, which causes the front end of the sheet to tilt downwards. If the skew angle is too large, there is a risk that the food falls slipping forward from the baking tray. According to IEC 60335-2-6, the maximum permissible skew angle is 6 °. In order to keep the skew angle low, it is known to keep the game in the guides as small as possible. On the other hand, materials with high rigidity or correspondingly high material thickness are used in order to minimize the elastic deformations, and thus the tilt angle, under the loads.

In addition, the disclosed CH 520 899 A a stove and the DE 102 53 158 A1 an oven, each with a baking tray, which is obliquely pulled out of the stove or oven.

In addition, in the US 7,735,481 B1 discloses a food support for a furnace, wherein the food support can be inserted via a pivotable roller assembly in guide slots and therein guidable and obliquely pulled out of a furnace muffle.

Furthermore, the EP 2 199 686 A1 a holding and sliding system for extendable food support comprising a pair of symmetrical supports, which are applied to opposite side walls of the cooking chamber.

Object of the present invention is to provide a cooking appliance with food supports, in which the maximum allowable tilt angle is maintained and is easy and inexpensive to manufacture.

This object is solved by the features of claim 1.

Inventively, a cooking appliance with a plurality of guides for guiding food supports, in particular baking trays, provided, wherein the guides on the side walls the cooking appliance muffle are arranged. In this case, the extension direction of the guides at an angle of inclination of at least 1 ° relative to the horizontal from the muffle opening to the cooking appliance interior sloping. Since the inclination angle of the guides opposite to the resulting skew angle of the food support in the extended position, or outer end position, acts, is reduced by the inclination angle of the skew angle, which reduces the risk of slipping down of food to be cooked.

On the side walls, an insert carrier is arranged with a plurality of guides. Compared with embossing the guides in the side wall of the muffle, the insert carrier offers the advantage of more accurate guidance with tighter tolerances. By means of the insert carrier, a substantially parallel slot for receiving a leading edge of the baking sheet can be created, whereas such a shape can be achieved only with great effort formative. At attachment points (such as punched openings), the insert carrier is attached to the muffle side wall. The angle of inclination can be achieved simply by the "twisted" positioning of the attachment points on the side wall, which causes no special costs in production and thus is significantly less expensive than a mechanically / elastically stiffer design of the baking sheet and its leadership.

The insert carrier has a frame member connecting the guides, which is aligned perpendicular to the extension direction of the guides. This ensures that the insert carrier itself does not produce the inclination angle, or has, but this results from a slightly twisted attachment of the insert carrier on the side wall. This means that in each case an identical insert carrier can be used on the left and right side wall of the muffle, which reduces the item costs and simplifies assembly.

Alternatively, according to an embodiment which is not part of the invention, the guides may be embodied as embossments in the side walls of the cooking appliance muffle. This is a cost effective option since no separate insert carrier is needed here.

In addition, the angle of inclination is less than 6 °, since at a greater angle of inclination there would be the danger that food would slide from the baking sheet in the fully inserted position of the baking sheet in the oven to the rear. This slip could be due to both the angle of inclination itself, as well as the remaining Pulse of the food to be caused when braking the baking sheet when reaching the retracted position.

In particular, the insert carrier has two wire clips as a frame and the guides of the food supports are each designed as two parallel longitudinal struts. This simple construction reduces the component costs and the mass of the insert carrier can be kept low, which improves the heating speed of the cooking appliance.

Alternatively, the guides of the insert carrier are designed as telescopic bearings, which has the advantage that the baking tray can be pulled to 100% or more out of the muffle.

In particular, a pull-out stop is provided as a limitation of the pull-out movement of the food support from the guide, so that by mistake too far undressing on the one hand can not fall out of the baking sheet and on the other hand too far pulling out can not give too large skew angle.

Fig. 1

eine Draufsicht auf ein Gargerät,

Fig. 2

eine Ansicht einer Seitenwand der Garraummuffel mit einem Einsatzträger,

Fig. 3

den Schnitt B - B durch den Einsatzträger,

Fig. 4

den Schnitt A - A durch den Einsatzträger und

Fig. 5

eine Seitenansicht des Backblechs.

In the following, the invention will be described by way of example with reference to the drawings based on preferred embodiments. Show it:

Fig. 1

a top view of a cooking appliance,

Fig. 2

a view of a side wall of the Garraummuffel with an insert carrier,

Fig. 3

the section B - B through the insert carrier,

Fig. 4

the section A - A through the insert carrier and

Fig. 5

a side view of the baking sheet.

Fig. 1 shows a cooking appliance 1 in a frontal view and the view through the cooking appliance door. On both side walls 15, an insert carrier 20 is mounted, which comprises a frame member 24 with guides 22. The frame member consists of two coarse vertical, but slightly oblique, aligned wire brackets 24, at which at regular intervals and roughly horizontally, but slightly oblique, aligned guides 22 are attached. The guides 22 comprise two spaced-apart wire hoops 26 spaced apart from one another and dimensioned such that the leading edge 42 of the baking tray 40 can be guided therein.

In each case an insert carrier 20 is attached to each side wall 15 at a small angle of inclination of 2 °, which is sloping from the muffle opening 11 to the device interior 12. For the sake of clarity, was in Fig.2 the angle α is shown oversized. The insert carrier of the muffle opening is therefore a little bit higher than in the interior of the device, so for example adjacent to the fan.

In order to limit the maximum withdrawal of the baking tray 40 from the baking oven muffle 10, a region of the longitudinal struts 26 serves as a stop edge 27. Fig. 5 shows a Baking tray 40 so that it can be inserted with its edge shown on the left in the muffle. The guide edges 42 engage in the guides 22 of the insert carrier 20. Stops 44 are impressed as local depressions in the guide edges 42 at a distance of 2/3 to 3/4 of the baking tray depth away from the front edge of the baking tray. As soon as these stops 44 come into contact with the stop edges 27 when the baking tray 40 is pulled out of the muffle, the user senses a noticeable resistance to further pulling out and recognizes that the outer end position of the baking tray has been reached. In this position, the focus of the baking tray and the food thereon is clearly outside of the muffle. Both a game in the leadership of the baking sheet, as well as elastic deformation of the storage ensure that the baking tray is tilted forward. If the inclination or inclination is too great, there is a risk that the food will slide off the baking sheet. It was recognized that this risk is great when the skew angle in the outer end position is greater than 6 ° and this maximum angle is required in IEC 60335-2-6.

By installing the insert carrier 20 with the described inclination angle α of 2 °, the maximum skew angle in the outer end position is partially compensated. If, for example, an exactly horizontal extension direction of the food support would result in a tilt angle of 7 °, this is thus reduced to a permissible 5 °.

For fastening the insert carrier 20 on the side walls 15 bores are provided on side walls, in which a made of plastic bush insert 28 is inserted. Due to elastic deformation when inserting the female insert 28 into the opening of the bore, a flange of the female insert, which is larger than the bore itself, can be inserted and thus positively hold the female insert on the side wall. The frame members 24 have a U-shaped basic shape and at the end of the flanks a circumferential groove, in which engage the socket insert 28 integrally formed locking lugs and so the respective frame member 24 is held on the side wall 15.

Reference numerals:

1.

Cooking appliance

4th

cooking appliance

10th

Gargerätmuffel

11th

muffle opening

12th

Side of the cooking device interior

15th

Side wall

20th

insert carrier

22nd

guide

24th

Wire hanger, frame element

26th

Longitudinal struts / wire hanger

28th

female insert

40th

Baking tray / food support

42nd

leading edge

44th

Stop the baking sheet

Claims (7)

1. Cooking appliance (1) with a plurality of guides (22) for guiding food holders (40), in particular baking trays, wherein the guides (22) are arranged on side walls (15) of a cooking appliance muffle (10), wherein an insert holder (20) with the plurality of guides (22) is arranged on the side walls (12) and that the insert holder (20) has a frame element (24) which connects the guides (22) and which is aligned at right angles to the pull-out direction of the guides (22),
   characterised in that
   a pull-out direction of the guides (22) slopes at an angle of inclination (a) of at least 1° with respect to the horizontal from a muffle opening (11) toward the cooking appliance interior (12).
2. Cooking appliance according to claim 1, characterised in that the insert holder (20) is fastened to the side wall (15) at the angle of inclination (a).
3. Cooking appliance (1) according to one of the preceding claims, characterised in that an identically constructed insert holder (20) is arranged on both side walls (15) of the cooking appliance muffle (10).
4. Cooking appliance according to one of the preceding claims, characterised in that the insert holder (20) has two wire brackets (24) as a frame, and the guides (22) of the food holder are each embodied as two longitudinal rods (26) which lie parallel to one another.
5. Cooking appliance according to one of the preceding claims, characterised in that the guides (22) of the insert holder (20) are embodied as telescopic supports.
6. Cooking appliance according to one of the preceding claims, characterised in that the angle of inclination (a) is less than 6°.
7. Cooking appliance according to one of the preceding claims with a food holder (40), characterised in that a pull-out stop is provided to limit the pull-out movement of the food holder (40) from the guide.

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