EP1010948B1 - Cooking apparatus - Google Patents

Description

The invention relates to a cooking appliance with a Glass / glass ceramic plate, the at least one hotplate with a gas burner with an open flame, a pot holder with feet and one Space for a cookware is mechanically fixed centrally.

Cooking appliances with a glass ceramic plate as the cooking surface and cooking zones electrically heated have been on the market for more than two decades. These glass ceramic hobs are valued primarily because of the attractive appearance, flat surface and easy cleaning. Because of of the clear and valued advantages that glass ceramics call Cooking surface material has been around for a few years now tries to use this material with gas cooking appliances or with cooking appliances electrically heated cooking zones combined with so-called gas burners Mixed devices.

Two types of gas cookers have emerged. In which one type is a gas radiant burner provided below the assigned cooking zone of the closed glass ceramic plate is arranged. Such a gas cooker is described, for example, in DE 43 26 945 C 2 known.

The second type uses common atmospheric gas burners, i.e. such with open flame, inserted through holes in the glass ceramic plate.

From such a cooking device with an open gas burner type Flames, as known for example from DE 195 05 469 C 1 the invention has ended.

The above-described cooking appliances with a glass / glass ceramic plate that at least have a hotplate with a gas burner with an open flame, need a pan support that has a footprint for the cookware has feet attached to it on the glass / glass ceramic plate get up. These pot supports must be so that the energy transfer from the Burner to the cookware is optimal, centered to the gas burner aligned and fixed in this position.

In cooking devices known on the market with glass ceramic cooking surfaces and The gas burners integrated in it are used to attach and center the Pot holder over the lid of the atmospheric gas burner used or alternatively via impressions in an adapter plate between the gas burner and glass ceramic plate.

It is also known from a marketable product, a centering of the To carry out the pan support over the recesses in the cooktop frame. The Characteristics must be designed so that the pot support is in its position is clearly centered.

The disadvantage of these embodiments of the common on the market today Pot support fixation lies in an elaborate design of the lid of the Gas burner if this is used as a centering element and in the case of Version with an adapter plate or with the hob frame on one complicated design of these components, which make the component more expensive and on the other hand make it inflexible in the event of a possible model change. Of it is also difficult to clean these forms.

The object of the invention is based on the above designated cooking device for this a pot support centering and fixation to create the inexpensive and flexible to manufacture and easy to clean is.

This object is achieved according to the invention in that the level Glass / glass ceramic plate stationary foot mounts for the feet of the conventional Topfträgersaufweist.

In contrast to the prior art, therefore, in the invention Design the fixing and centering points for the feet of the pot holder defined directly on the cooking surface, the glass / glass ceramic plate itself. These foot mounts are inexpensive and flexible to manufacture and light to clean.

An easy to manufacture fixation can be achieved if the Foot mounts due to lowered formations in the Glass / glass ceramic plate, adapted to the contour of the foot ends are formed. The formation of formations in a glass / glass ceramic plate is has become a manageable technology in the meantime, so that the foot mounts formed directly by partially lowered formations in the manufacture of the glass / glass ceramic plate or in a separate one Manufacturing step can be trained.

According to an alternative further development, the cooking appliance can also do so be trained that the foot mounts by grinding in the Glass / glass ceramic plate, adapted to the contour of the foot ends are formed.

These grindings can then be made after the ceramization Glass ceramic plate or already in non-ceramicized green glass state in this be trained with known grinding techniques.

The foot mounts also do not have to be directly in the material of the Glass / glass ceramic plate itself. The arrangement can also be so be taken that the foot mounts through with a recess for the Fixed mounting of the foot ends provided on the glass / glass ceramic plate attached separate foot holder are formed. These separate footrest components can be made relatively easily and can be made on the trained in various ways and at the Glass / glass ceramic plate can be attached.

According to a first embodiment, the foot holder can be made in one piece and be attached as a whole to the glass / glass ceramic plate. A Cleaning of these foot supports must then be carried out "in situ", i.e. when attached, respectively.

This can be avoided if the foot holder is made in two parts with a base part that is attached to the glass / glass ceramic plate and with a removable top part from the base part.

The removable upper part can then be cleaned separately from the cooking device, e.g. also in the dishwasher.

A number of are available to those skilled in the art for attaching these foot holders Options available. According to a first embodiment, the Invention in a one-piece design of the foot holder as a whole and in In the case of the two-part design, the base part on the cooking surface side Glass / glass ceramic plate should be glued on. The skilled person is here suitable adhesives with permanent adhesive properties are available (e.g. high-temperature resistant silicone adhesive).

According to a further embodiment of the invention, the arrangement can also be so be taken that the foot holder attachment side an extension have, in corresponding holes in the glass / glass ceramic plate is mechanically fixed.

With such a fastening of the foot holder in the glass / glass ceramic plate can the foot holder in particular for the purpose of cleaning and Exchange, lose weight.

This is particularly easy if the extension has a thread for Has screwed into a socket fastened in the bore.

As an alternative to this screw solution, the extension of the foot holder can also be in the corresponding holes are clamped by means of a spring by the Extension formations, preferably a groove structure, for clamping Introducing the extension into a socket in the bore.

The foot supports according to the invention which have been characterized so far have depressions in which the feet of the pot holder rest. These cuts can, as shown, by lowered formations or grinding be formed in the glass / glass ceramic plate itself, or can corresponding reductions in separate moldings that are on the Glass / glass ceramic plate are applied.

According to a development of the invention, an alternative embodiment is given that the foot mounts by bulges on the Glass / glass ceramic plate are formed.

The bulges protruding upwards on the cooking side can open up can be realized in different ways.

Thus, the bulges can already be advantageous during the manufacture of the Glass / glass ceramic plate are formed, i.e. immediately in the material the glass / glass ceramic plate itself be formed by according to a further embodiment of the invention, the bulges by raised molded forms are formed in the glass / glass ceramic plate, the rise from the kitchen side or alternatively by the bulges due to protruding thickenings in the glass / glass ceramic plate are formed.

The bulges can either selectively in the area of Pot support feet as their installation points or alternatively as be formed rotationally symmetrical around the ring around the gas burner. In this case, the circumferential ring can overcook in the Retain the burner area and prevent it from spreading over the entire Spreads the cooking surface.

According to one embodiment of the invention, the cooking device is designed such that that the footprint of the pot support feet to the contour of the bulge is adjusted.

According to a first variant, the pot support feet can be positioned the cooking device be designed so that on the footprint of the Pot support feet each have a pin and one each on the bulge appropriate holes for receiving the pin are made. Further Variants are marked in subclaims.

Further features and advantages of the invention result from the Description of exemplary embodiments shown in the drawings.

Fig. 1

in einer Schnittansicht eine Gasbrennstelle mit einem Topfträger, der erfindungsgemäß mit seinen Füßen von ortsfest auf der Glaskeramikplatte ausgebildeten Fußhalterungen aufgenommen ist,

Fig. 2

in einer vergrößerten Ausschnittdarstellung zur Fig. 1 eine Ausführungsform der Fußhalterung mit einer abgesenkten Ausformung in der Glaskeramikplatte in Verbindung mit einem halbkugelförmig ausgebildeten Fußende,

Fig. 3

eine Ausschnittdarstellung entsprechend Fig. 2, jedoch mit einer Ausbildung der Fußhalterung durch eine Ausschleifung in der Glaskeramikplatte in Verbindung mit einem dazu komplementären Fußende des Topfträgers,

Fig. 4

in einer entsprechenden Ausschnittsdarstellung eine Fußhalterung mit einem separaten, einteiligen knopfartigen Fußhalter, der auf die Glaskeramikplatte aufgeklebt ist,

Fig. 5

in einer Darstellung entsprechend Fig. 4 die Ausführung der Fußhalterung mit einem einteiligen knopfartigen Fußhalter, der einen Fortsatz aufweist, mit dem er in einer Bohrung in der Glaskeramikplatte verklemmt ist,

Fig. 6

eine Ausführungsform entsprechend derjenigen nach Fig. 4, jedoch mit einer zweiteiligen Ausführung des Fußhalters mit abnehmbaren Oberteil, und

Fig. 7

eine Ausführungsform entsprechen derjenigen nach Fig. 5, jedoch ebenfalls mit einer zweiteiligen Ausführung des Fußhalters nach Fig. 6,

Fig. 8

in einer vergrößerten Ausschnittsdarstellung zur Fig. 1 eine alternative Ausführungsform der Fußhalterung mit einer aufgewölbten Ausformung in der Glaskeramikplatte in Verbindung mit einem zur Aufwölbung konkav ausgebildeten Fußende,

Fig. 9

eine Ausschnittsdarstellung entsprechend Fig. 8, jedoch mit einer oberen Abflachung der Aufwölbung, auf der ein flaches Fußende mit einem Zapfen positioniert ist,

Fig. 10

eine Ausschnittsdarstellung entsprechend Fig. 8 mit einer Aufwölbung in der Glaskeramikplatte in Form einer Verdickung, und

Fig. 11

eine Ausschnittdarstellung entsprechend Fig. 8 mit einer aufgewölbten Ausformung in der Glaskeramikplatte, die eine Ausnehmung zur Positionierung des dazu komplementär. ausgebildeten Fußendes besitzt.

Show it:

Fig. 1

FIG. 3 shows a sectional view of a gas burning point with a pot support which, according to the invention, is received with its feet from foot mounts which are stationary on the glass ceramic plate,

Fig. 2

1 shows an embodiment of the foot holder with a lowered shape in the glass ceramic plate in connection with a hemispherical foot end,

Fig. 3

2 shows a cutout representation corresponding to FIG. 2, but with a design of the foot holder by grinding in the glass ceramic plate in connection with a complementary foot end of the pot carrier,

Fig. 4

in a corresponding cutout representation, a foot holder with a separate, one-piece button-like foot holder, which is glued to the glass ceramic plate,

Fig. 5

4 shows the design of the foot holder with a one-piece button-like foot holder, which has an extension with which it is clamped in a hole in the glass ceramic plate,

Fig. 6

an embodiment corresponding to that of FIG. 4, but with a two-part design of the foot holder with removable upper part, and

Fig. 7

5 corresponds to that of FIG. 5, but also with a two-part design of the foot holder according to FIG. 6,

Fig. 8

1 an alternative embodiment of the foot holder with an arched shape in the glass ceramic plate in connection with a foot end which is concave to arch,

Fig. 9

8, but with an upper flattening of the bulge, on which a flat foot end is positioned with a pin,

Fig. 10

8 with a bulge in the glass ceramic plate in the form of a thickening, and

Fig. 11

8 with a curved shape in the glass ceramic plate, which has a recess for positioning the complementary to it. trained foot end.

Fig. 1 shows a gas burning point of a cooking appliance with a Glass ceramic plate 1 as a cooking surface, which has an opening 2 in which a atmospheric burner 3 of conventional design with symbolically indicated Flames 3 a is recorded and bordered with a ring sleeve 4 is.

The burner 3 is a conventional pot support 5 with a footprint .. 5 a and feet 5 b assigned, on which the respective, shown schematically Cookware 6, a pot, a pan or the like stands.

1 shows only a single gas burning point of a cooking appliance and it is understood that the cooking appliance has several such gas burning points can. So-called mixed cooking devices can also be provided with a combination of at least one gas burner according to FIGS. 1 and at least one electrically heated cooking zone.

The following applies to the representation of the gas burning points in the following figures appropriate.

Via a feed pipe 3 a, the burner 3, depending on the design of the Brenners a pure gas that later mixed with the so-called primary air or a mixture (pre-mix) of gas and the primary air is supplied. This gas mixture burns in the space 9 between the glass-ceramic plate 1 and bottom of the cookware 6, the exhaust gases between the legs of the Drain the pan holder 5 through to the outside.

1 shows, the pot support 5 is directly on the Glass ceramic plate 1. It must be there to ensure optimal combustion or Securing energy transfer, fixed to the gas burner 3 be positioned, which is indicated in Fig. 1 by a principle Foot bracket 7 is expressed, the stationary on the Glass ceramic plate 1 is attached and the foot 5 b of the pot support 5 fixed receives.

Different options for training the foot bracket 7 for that centered fixed positioning of the pot support 5 are based on the following Figures described, each enlarged sections from FIG. 1 in Show installation area of feet 5 b of the pan support.

FIG. 2 shows an embodiment in which the foot holder 7 of FIG. 1 formed by a lowered formation 1 a in the glass ceramic plate 1 is, in connection with a complementary thickening 5 c at the end of the foot 5 b of the pot holder. The geometry of the formation and the Thickening can be designed, and can be done selectively in the area of the feet 5b - or a rotationally symmetrical formation 1 a accept. In the first case there are indentations, in the other case it is there is a circumferential groove. The shape can also be on the extend the entire thickness of the plate 1, i.e. the plate 1 then has Forming area the same thickness as in the flat area. In this case would the molding area immediately during the manufacture of the Pronounced glass ceramic plate. In the other case, the shape would be Grinding or the like.

Fig. 3 shows an alternative embodiment in which the foot bracket through a grinding or stamping 1 b in the glass ceramic plate 1 in Connection with a complementary training 5 d at the end of Foot 5 b of the pot carrier is formed.

Here, too, there are various design options for the contour the loop 1 b and the complementary training 5 d on Foot. In this case, too, the expression can be punctiform or dent or be circumferentially formed as a groove.

While in the foot mounts according to FIGS. 2 and 3 this directly in of the glass ceramic plate 1 are shown in the following Foot mounts such as those with a separate, button-type foot mounts that open on is mechanically connected to the glass ceramic plate in various ways.

The embodiment according to FIG. 4 shows a one-piece footrest button 12 with a trough-shaped recess 12 a in connection with one to the Trough complementary foot end 5 e. In this embodiment the foot holder button 12 is glued to the glass ceramic plate 1 as it is the adhesive seam 13 is clarified.

In the alternative embodiment according to FIG. 5, the foot holder button is 12 not glued to the glass ceramic plate 1, but has an extension 12 b on, which is received in a hole 1 c in the glass ceramic plate. in the The simplest case is the extension on the other side of the glass ceramic plate fixed with a spring washer. However, it can also be replaced by a appropriate training of extension 12 b with a thread on the Underside are screwed in. Likewise, the extension is glued in place an elastic adhesive possible.

In the embodiments according to FIGS. 6 and 7, the foot holder button Made in two parts, each with a base part 14, which is indicated in Fig. 6 glued to the glass ceramic plate by the adhesive seam 13, analogously to FIG. 4 is, and in the embodiment of FIG. 7 with an extension 14 b in one Bore 1 c of the glass ceramic plate 1 is mechanically fastened, similar to that 5. The foot holder button also has an upper part 15 that e.g. Removable via a positive connection with the base part 14 connected is.

The upper part 15 each has an angular recess in these examples 14 a, in which the complementary end 5 f of the foot 5 b is included.

With the help of FIGS. 1 to 7, designs of the foot holder 7 have so far been provided the centered fixed positioning of the pot support 5 has been described all based on the principle that the foot ends in lowered areas rest.

With the help of FIGS. 8 to 11, further possibilities are now available described, which are all based on the principle that the foot mounts 7th are formed by bulges on the glass / glass ceramic plate 1.

Fig. 8 shows a bulge, which is formed by a raised Expression 16 is formed in the glass ceramic plate 1, which extends from the cooking side this raises. This arched shape 16 can run concentrically to the gas burner 3 as a ring-wall-like ring or selectively dome-like his. The foot end 5 b is complementary to the curvature, this partially encompassing, concave and positioned or fixed in this way the pan support 5.

In the embodiment according to FIG. 9, a bulge 17 is analogous 8 directly molded in the glass ceramic plate 1, the however, in contrast to the bulge 16 in Fig. 8 flattened at the top is, as is the foot end 5 b of the pot carrier 5. To ensure a safe Positioning and fixing the pan support is at the foot end 5 b a pin 18 and a hole in the bulge 17 in the flattened part 19 designed to receive the pin 18. Even in the embodiment 9, the bulge 17 can be punctiform or as a circumferential ring wall be trained.

While the bulges in the embodiments according to FIGS. 8 and 9 16 and 17 made of a material of the same thickness throughout Glass ceramic plate 1 are pressed out in the embodiment 10 the bulge from a thickening 20 in the Glass ceramic plate 1. The foot end 5 b has a complementary one Notch 21 for positioning the pot carrier 5. Also in this Execution can thicken 20 circumferentially at certain points or like a ring wall be trained.

11 with a cross-sectional view of the Foot holder 7 in part A is a bulge 22 with a recess 23 provided, which is complementary to a nose-shaped projection 24 Foot end 5 b is. This projection 24 has the same function as the pin 18 in Fig. 9, i.e. fixes the pan support. The bulge 22 can also are formed selectively or as a circumferential ring.

The circumferential ring wall that is possible in all embodiments keeps up Advantage possible overflow in the burner area back and prevents this spreads over the entire cooking surface.

While in the foot mounts according to FIGS. 8 to 11, these directly in the glass ceramic plate 1, i.e. are molded in one piece, can also separate, button-like foot holders can be provided in different ways are mechanically connectable to the glass ceramic plate, according to the Designs according to Figures 4 to 7.

Claims (14)

1. Cooking appliance with a plane glass/glass-ceramic plate (1) as cooking surface, which cooking appliance has at least one cooking point with a gas burner (3) having an open flame (3a), the said gas burner being received in an orifice (2) of the glass/glass-ceramic cooking surface and being capable of being assigned, so as to be centrally fixed mechanically, a conventional pot carrier (5) with a standing surface for a cooking utensil (6) and with feet (5b) extending away from the said standing surface and intended for standing on the plane glass/glass-ceramic cooking surface, characterized in that the plane glass/glass-ceramic surface has fixedly formed foot mountings (7) for the feet (5b) of the conventional pot carrier (5).
2. Cooking appliance according to Claim 1, characterized in that the foot mountings (7) are formed by countersunk shaped-out portions (1a) in the glass/glass-ceramic plate (1) which are adapted to the contour of the foot ends (5c) (Fig.2).
3. Cooking appliance according to Claim 1, characterized in that the foot mountings (7) are formed by ground-out portions (1b) in the glass/glass-ceramic plate (1) which are adapted to the contour of the foot ends (5d) (Fig. 3).
4. Cooking appliance according to Claim 2 or 3, characterized in that the shaped-out portions (1a) or the ground-out portions (1b) are formed in a punctiform manner in the region of the foot ends (5c) or continuously as a groove.
5. Cooking appliance according to Claim 1, characterized in that the foot mountings (7) are formed by separate foot holders (12; 14; 15) provided with a recess (12a; 14a) for the fixed reception of the foot ends (5e, f) and attached to the glass/glass-ceramic plate (1).
6. Cooking appliance according to Claim 5, characterized in that the foot holders (12) are produced in one part (Fig. 4, 5).
7. Cooking appliance according to Claim 5, characterized in that the foot holders (14, 15) are produced in two parts, with a base part (14) which is fastened to the glass/glass-ceramic plate (1) and with an upper part (15) removable from the base part (14) (Fig. 6, 7).
8. Cooking appliance according to Claim 5 or 6, 7, characterized in that the foot holders (12; 14; 15) are glued to the glass-ceramic plate (1) on the cooking-surface side or on the fastening side have an extension (12b; 14b) which is in each case received, fixed mechanically, in corresponding bores (1c) in the glass/glass-ceramic plate (1).
9. Cooking appliance according to Claim 1, characterized in that the foot mountings (7) are formed by arched portions (16, 17, 20, 22) on the glass/glass-ceramic plate (1).
10. Cooking appliance according to Claim 9, characterized in that the arched portions are formed by embossings (16, 17, 22) of raised shape in the glass/glass-ceramic plate (1) which rise out of the latter on the cooking side.
11. Cooking appliance according to Claim 9, characterized in that the arched portions are formed by thickenings (20) in the glass/glass-ceramic plate (1) which project on the cooking side.
12. Cooking appliance according to Claim 9, characterized in that the arched portions are formed by contours of separate mouldings firmly attached to the glass/glass-ceramic plate, the said contours being of raised shape and projecting on the cooking side.
13. Cooking appliance according to one of Claims 9 to 12, characterized in that the standing surface of the pot-carrier feed (5b) is adapted to the contour of the arched portion (16, 17, 20, 22).
14. Cooking appliance according to Claim 13, characterized in that in each case a peg (18) is attached to the standing surface of the pot-carrier feet (5b) and in each case a corresponding bore (19) for receiving the peg is made on the arched portion (17), or in each case a nose-shaped integrally moulded portion (24) is formed and in each case a recess (23) complementary thereto is formed on the arched portion (22).

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