WO2007000357A1

WO2007000357A1 - Domestic appliance and a cookable product holding device therefor

Info

Publication number: WO2007000357A1
Application number: PCT/EP2006/060544
Authority: WO
Inventors: Hermann-Reinhard Segers
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2005-06-29
Filing date: 2006-03-08
Publication date: 2007-01-04
Also published as: DE102005030392A1; US20090293857A1; EP1899651A1

Abstract

The invention relates to a domestic appliance comprising a muffle (2) in which a removable holding device (1) for supporting cookable products comprises a depth stop (22, 26) which limits a depth direction of the holding device (1) extraction arranged in the muffle (2) and is in contact with an additional wall (8) of the muffle by the rear part thereof. In order to ease the insertion of the holding device in the muffle, the depth stop (22, 26) thereof contacts the additional wall (8) by the rear external side in a mounting state.

Description

Describe

H ausgergerät as well as G arguträger-H atevorlage for the H h unit

The invention relates to household appliance with a muffle in which a removable holding device is arranged for a food support, which is formed with a depth stop, which limits in a depth direction extraction of the holding device from the muffle and engages behind a front wall in the muffle.

Under a food support, for example, a baking sheet, a Auflagerost, a cast roaster or another carrier to understand that can accommodate a to be cooked or to be baked good. For the sake of simplicity, the following is a baking tray as an example of a food support, without limitation.

Today's oven muffles with recirculation mode often have on their rear wall an impeller of a radial fan, which is shielded from the muffle interior by a header wall. It is powered by an electric drive motor outside the muffle. The rear oven wall is thus formed at least partially double-walled forming a gap between the rear wall and the header wall.

Removable holding devices for food support are from the prior

Technique known. Due to their retrofittability and the fact that in the muffle no holder for insertable baking sheets or special wall designs must be provided, the same muffle shape without significant modifications for both ovens, which are intended for the catalysis as well as those intended for the pyrolysis process, getting produced. Because depending on the needs of the food support can be used later. It is ensured that the retrofitting can be done with a few simple steps.

From EP 0 81 1 807 A2 is a movable holding device for a

Baking tray known, which includes a parallelogram with a relation to the oven muffle stationary oriented leg and a movable holding leg. The baking sheet is placed on the movable holding leg and can be transferred from a retracted position in the muffle in an extended position in which he protrudes from the baking oven muffle. The stationary oriented leg has a rear attachment end with which the holding device is attached to a rear oven wall form-fitting and removable. For this purpose, a hook is formed at the attachment end, which engages in a recess in a front wall in front of the actual rear wall of the muffle. In the vicinity of the hook, a projection is also arranged, which cooperates with a counter element of the intent wall so that an upward movement is prevented. A disadvantage of this construction turns out that their mounting on the header wall in the depth of the oven muffle is cumbersome. Because it requires some skill to thread the hooks into the corresponding recesses in the facing wall and bring the projections in operative connection with the corresponding counter-elements.

It is therefore the object of the present invention to provide a household appliance with a removable holding device, the assembly is simplified in a Hausgerätemuffel.

This object is achieved by a domestic appliance with the features of claim 1 and a holding device with the features of claim 15. According to the characterizing features of claim 1, a depth stop of the holding device engages behind a muffle back wall side intent wall on the outside in the installed state.

According to a simple Ansführungsform the intent wall as a

Be formed partition, which separates a fan chamber from the cooking chamber of the muffle.

The invention is directed to a construction which arranges the support and / or the attachment of the holding device on a viewing surface of the header wall. Rather, it pursues the principle of allowing the attachment to attack on an invisible back of the header wall. This has the advantage that the intent wall must have no recesses and openings, the production of which means an additional effort and could affect the appearance of the intent wall. Due to frequent use of the known holding device and in particular their repeated assembly, these recesses can also be very unsightly due to signs of wear and affect the visual impression of the cooking appliance. By attacking the attachment according to the invention on the invisible back of the header wall these disadvantages can be avoided. Use or even traces of wear remain hidden from viewers in the oven, rather, it offers a high-quality sight.

For engaging behind the header wall attachment can have any elements with which it engages in the space between the muffle back wall and the front wall. In any case, they must derive a tensile force with which the holding device could be pulled out of the muffle, safely on the muffle. According to an advantageous embodiment of the invention, the attachment therefore comprises at least one pin which engages behind the intent wall. A pin represents a simple mounting option that is easy to manufacture, makes the mounting of the fixture easy to understand and yet transmits the unwanted tensile force reliable. Preferably, the attachment has two pins, because this a defined investment while avoiding tilting moments is possible. Pins also offer the advantage that they can be dimensioned so small in terms of their dimensions that they attract attention visually hardly disturbing. You can also intervene in small distances between the muffle back and the intent wall and are also in the depth of the oven muffle and their poor illumination easily dirigierbar. [001 1] Since the intent wall does not cover the entire back wall of the baking oven muffle, but leaves a wide edge both laterally and above and below, a mounting basically offers many possibilities for reaching behind the intent wall. According to an advantageous embodiment of the invention, the pins engage behind the front wall of the underside thereof. The mounting of the holding device is thus simplified because a favorable starting position for the assembly may consist in that the holding device is placed on a bottom of the muffle. From this initial position, the pins can be conveniently directed to their operating position without the user at the same time having to carry the weight of the holding device.

According to a further advantageous embodiment of the invention, the

Holding device longitudinal strips and transverse strips or longitudinal and transverse spars, which form a closed frame, wherein the longitudinal bars essentially serve to support a baking tray and the rear cross member has the attachment. Due to the formation of a closed frame, the holding device gains special stability, so that it can not warp in particular during assembly and their handling is not difficult.

The mounting of the holding device in the muffle is also facilitated by the fact that stops are designed to define and maintain the operational position of the holding device within the muffle. In principle, the position of the holding device within the muffle with respect to the three dimensions must be defined, namely on the one hand in a horizontal longitudinal direction, which corresponds to an insertion and extraction direction of the baking sheet, in a perpendicular transverse direction and in a vertical direction. A stop for the vertical direction has particular significance that tilting of the holding device is avoided when a baking sheet is only partially pulled out of the baking muffle. According to a further advantageous embodiment of the invention, therefore, the rear cross member can rest for defining the position of the holding device in the muffle in the longitudinal direction of the rear wall of the muffle. In this way, can be dispensed with a separate stop in the insertion direction, because it is already formed by the lower cross member.

The same advantage can also be achieved for the definition of the position of the holding device in the transverse direction by abut the longitudinal beams on the side walls of the muffle according to a further advantageous embodiment of the invention.

Alternatively, the rear cross member for defining the position of

Holding device in a transverse direction have a projection which engages in a recess in the front wall or has a recess into which engages the front wall. Since the intent wall, as explained above, does not occupy the entire surface of the back wall of the muffle, can on this Way the vertical boundary edges of the intent wall are used as stops for defining the position of the holding device.

The distance of the front wall of the rear wall of the muffle can also be used for a vertical stop. According to a further advantageous embodiment of the invention can come to define the position of the holding device in the vertical direction of the rear cross member with its upper side with an angled lower cross plate of the header wall to rest. This also makes it advantageous to use existing component edges in addition to determining the position of the holding device.

The holding device can be varied depending on the needs and purpose in their structure. According to an advantageous embodiment of the invention, therefore, for example, the longitudinal beams are formed as telescopic rails for extending the baking sheet from the muffle. This allows the baking sheet, which is mounted in the holding device, easily extend out of the baking chamber and remove in the extended position easier from the holding device.

Alternatively, the holding device may have a plurality of longitudinal members, so that a plurality of baking sheets can be arranged one above the other in the baking muffle. The longitudinal beams can be arranged in the form of a frame and thus jointly extendable or each itself as telescopic rails and thus be formed individually extendable.

A further ease of operation is that, according to an advantageous embodiment of the invention, the front cross member is designed as a handle strip for extending the holding device. The front cross member thus serves on the one hand the stability of the holding device as part of the closed frame and on the other hand as a comfortable operating element of the holding device.

According to a further advantageous embodiment of the invention is the

Holding device for the use of an additional heater above the muffle bottom and formed between the longitudinal beams. The additional heating, the z. B. offers when using a Gußbräters, can advantageously occupy the space between the longitudinal beams. It is thus almost unlimited in their construction and design. You can give their heat unhindered and directly to the bottom of the Gußbräters.

The principle of the invention will be explained in more detail in the following by way of example with reference to a drawing. Show it:

1 is a perspective view of a baking muffle,

FIG. 2 shows a rear section of a holding device and a lower section of a front wall,

3 shows a section along the line IH-III according to Figure 2,

4 shows a section along the section line IV-IV according to Figure 2,

Figure 5 is a schematic diagram of the holding device in a

Mounting position and

Figure 6 is a schematic diagram of the holding device in the operating position. Figure 1 illustrates a removable holding device 1, which is inserted into a muffle 2 of a baking oven 3, from the opening side of the muffle 2 in a perspective view. The muffle 2 comprises side walls 4, of which in this view, only the right can be seen, a bottom 5, a rear wall 6, a non-visible cover surface 14 (Figure 5 and 6) and a sake of clarity not shown front flap, which closes the opening 7 of the muffle 2. The rear wall 6 of the muffle 2 is partially formed two shells by her upstream in the direction of the interior of the muffle 2 a facing wall. In an intermediate space 15 between the front wall 8 and the rear wall 6 of the muffle 2, a not shown in Figure 1 impeller 9 (Figure 5 and 6) is arranged, which serves for circulating the air in the baking muffle 2 during the recirculation mode. Since the intent wall 8 does not cover the entire surface of the rear wall 6 of the muffle 2, runs between it and the side walls 4, the bottom 5 and the top surface of the baking muffle 2, a gap 10 which surrounds the intent wall 8 like a frame. The intent wall 8 has to delimit against the gap 10 at least below a cross plate, shown in phantom in part. Below the front wall 8 in the region of the frame-like gap 10, a connection 12 for an additional heating is arranged centrally.

The removable holding device 1 comprises a front cross member 21, a parallel extending rear cross member 22 and two parallel longitudinal beams 23 and 24. The spars 21, 22, 23, 24 of the holding device 1 together form a stable closed frame. The longitudinal beams 23, 24 have support strips 25 on which a baking sheet can be stored. They are also designed as telescopic rails, so that a stored on the support strips 25 baking sheet can be easily extended through the opening 7 of the muffle 2. The extension of the baking tray is also facilitated by the front cross member 21, which is designed as a handle bar.

In order to enable the removable holding device 1 during their assembly in the desired operating position, their functional position must be defined exactly in the direction of their width, depth and height. Their vertical altitude within the baking muffle 2 is defined by the fact that it is placed with its longitudinal beams 24, 25 and the rear cross member 22 on the bottom 5 of the baking muffle 2. Its horizontal position in the transverse direction within the muffle 2 is determined by the fact that the longitudinal bars 23, 24 extend parallel to the side walls 4 and lie directly against them flatly. In order to achieve a rich concern of the longitudinal beams 23, 24, they have a cross section which is the fillet at the transition between the side walls 4 and the bottom 5 of the muffle 2 adapted (not shown). A transverse movement of the holding device 1 within the muffle 2 is thus excluded.

In particular, by an operation of the holding device 1, for example when pulling out of the baking sheet from the baking muffle 2, horizontal Longitudinal forces act on the holding device 1, which they can move out of the baking muffle 2 in one direction through the opening 7. Against this shift, the holding device 1 is to be secured. For this purpose, the rear cross member 22 has two perpendicular pins 26 which project slightly beyond the rear cross member 22. They engage in recesses 13 in the lower cross plate 1 1 of the intent wall 8 from below, so that they are supported by the gap 15 between the rear wall 6 and the intent wall 8 as it were from behind against the back of the intent wall 8. Thus, the rear cross member 22 is clearly defined in its intended position.

These relationships can be seen more clearly in FIG. For the sake of simplicity, the cross member 22 and the longitudinal members 23, 24 are shown with narrow rectangular cross-sections. The cross member 22 includes a lower narrow side 27 and an upper narrow side 28. In this sectional view can be clearly seen that the rear cross member 22 completely fills the frame-like gap 10 in an area below the intent wall 8. He is thus with its lower narrow side 27 on the bottom 5 of the baking muffle 2, in contrast to the illustrations in Figures 3 and 4, in which for reasons of better recognizability between the lower narrow side 27 of the transverse spar 22 and the bottom 5 of the baking muffle 2 a gap is shown. The cross member 22 abuts with its upper narrow side 28 directly against the cross plate 1 1 (Figure 4). Further pushing in of the holding device 1 to the rear wall 6 is prevented because the cross member 22 start in such a movement against the rounding between the bottom 5 and the rear wall 6 and would be pushed upwards. In this movement, however, he is hindered by his investment in the lower cross plate 1 1. A movement in the opposite direction is prevented by the pin 26. By their intervention in the recesses 13 they counteract a movement of the transverse spar 22 and thus the entire holding device 1 in the extension direction of the trained as telescopic rails longitudinal beams 23 and 24.

An additional fixation of the holding device 1 in the transverse direction also takes place in that the rear cross member 22 forms a step 29 on its upper side. The lowered portion of the step 29, which forms the upper narrow side 28 of the transverse spar 22 is dimensioned just as long as the width of the facing wall 8, at least in its illustrated lower portion. The cross member 22 encloses the gradation 29, at least the lower cross plate 1 1 of the intent wall 8 on three sides. Thus, the horizontal position of the holding device 1 in the transverse direction is also uniquely defined by the abutment of the transverse spar 22 on the header wall 8.

Figures 5 and 6 illustrate two positions of the holding device 1 during insertion. Figure 5 shows a mounting position in which the holding device 1 is slid downwards in the direction of the rear wall 6 of the muffle 2 into the muffle 2 with an inclination , In this oblique position For example, the pins 26, which are longer than the frame-like gap 10 below the header wall 8, can be inserted below the header wall 8 into the intermediate space 15. In order for the operator to be able to precisely direct this even in the generally poor lighting conditions within the muffle 2, the pins 26 are arranged on the view side of the transverse struts 22, ie, clearly visible to the operator from the opening 7. Because the holding device 1 is guided in the transverse direction by its longitudinal bars 23, 24 and / or by the gradation 29 on the cross member 22, it is easy for the operator to insert the pins 26 into the recesses 13. Have they reached this position, the holding device 1 can be lowered in the direction of arrow A, so that the longitudinal bars 23, 24 rest on the bottom 5 of the muffle 2. The pins 26 engage behind the intent wall 8, so that the holding device 1 can not be pulled out of the muffle 2 unintentionally in the horizontal direction through the opening 7. In this situation, a tensile force acts, for example, as a result of the extension of a baking sheet on the holding device 1 in the direction of extension of the telescopic rails designed as longitudinal beams 23, 24, as a compressive force from behind against the intent wall 8. The consequent impact of the pin 26 at the edges of the cutouts 13 occur at least after frequent use in the area of the cutouts 13 and on the pin 26 signs of use that can be caused by the insertion of the holding device 1 or by tensile forces by the extension of a baking tray by the arrangement of the cutouts 13 in one however, they are not visible and thus do not affect the appearance of the oven 3 even after its prolonged use. [0035] List of Reference Numerals

1. Holding device

2. muffle

3. Oven

4. Side walls of the muffle 2

5. Floor of the muffle 2

6. Rear wall of the muffle 2

7. Opening

8. intent wall

9. Blower wheel

10. Frame-like gap

1 1. lower cross plate

12. Connection for additional heating

13. Cutout in the lower cross plate 1 1

14. Top surface

15. Interspace

1. Front cross member

2. Rear cross member 3. Right longitudinal spar

4. Left longitudinal spar

5. support strip

6th pin

7. lower narrow side of the cross member 22nd

8 upper narrow side of the cross member 22nd

9th gradation

; 0036] A mounting direction

Claims

claims

1. Domestic appliance with a muffle (2), in which a removable holding device (1) for a food support is arranged, which is formed with a depth stop (22, 26), in a depth direction (I) pulling out the holding device (1) delimited from the muffle (2) and a front wall (8) in the muffle (2) engages behind, characterized in that the depth stop (22, 26) of the holding device (1) in the installed state, the front wall (8) engages on the outside.

2. Domestic appliance according to claim 1, characterized in that the depth stop (22, 26) of the holding device (1) engages behind the underside of the intent wall (8).

3. Domestic appliance according to claim 1 or 2, characterized in that the depth stop (22, 26) of the holding device (1) between a muffle rear wall (6) and the front wall (8) is arranged without play or almost no play.

4. Domestic appliance according to claim 1, 2 or 3, characterized in that the holding device (1) for limiting movement in a lateral direction (III) in the muffle with side stops (24) is formed, the backlash-free or almost no play in contact with the Muffel side walls (4) are.

5. Domestic appliance according to one of the preceding claims, characterized in that the holding device (1) for limiting movement in a height direction (II) is formed with a height stop (22).

6. Domestic appliance according to one of the preceding claims, characterized in that the height stop (22) of the holding device (1) between a muffle bottom and the underside of the front wall (8) is arranged.

7. Domestic appliance according to one of the preceding claims, characterized in that the holding device (1) is supported on the muffle bottom.

8. Domestic appliance according to one of the preceding claims, characterized in that the depth stop (22, 26) as a pin (26) and / or as a frame strip (22) of the holding device is formed.

9. domestic appliance according to one of the preceding claims, characterized in that the holding device is designed as a frame with longitudinal and transverse strips (21 to 24).

10. Domestic appliance according to claims 9, characterized in that the side stops (24) are formed by the longitudinal strips (23, 24) of the holding device.

1 1. Household appliance according to claim 9 or 10, characterized in that the longitudinal strips (23, 24) of the holding device without play or almost no play in contact with the side walls (4) of the muffle.

12. Domestic appliance according to one of claims 9 to 1 1, characterized in that the rear cross bar (22) of the holding device without play or almost no play in contact with the rear wall (6) of the muffle.

13. Domestic appliance according to one of claims 9 to 12, characterized in that in the rear cross bar (22) of the holding device side stops or gradations (29) are formed, which are free of play with the side edges of the intent wall or almost free of play in conditioning.

14. Domestic appliance according to one of the preceding claims, characterized in that the holding device are formed with telescopic rails for extending the food support from the muffle.

15. Holding device for a household appliance according to one of the preceding claims.