WO2007118744A1

WO2007118744A1 - Plate unit with resistant decoration

Info

Publication number: WO2007118744A1
Application number: PCT/EP2007/052447
Authority: WO
Inventors: Miguel Angel Bunuel Magdalena; Jesus Ceamanos Gaya; Jose-Ramon Garcia Jimenez; Alfonso Lorente Perez; Robert Sachon
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2006-04-12
Filing date: 2007-03-15
Publication date: 2007-10-25
Also published as: EP2013033B1; EP2013033A1; EP2013033B2; ES2366238T5; ES2366238T3; ATE514566T1; DE102006017250A1

Abstract

Plate unit, in particular for a cooking device (10), comprising a transparent base element (18) with a visible side (50) and a rear side (52), arranged opposite the visible side (50), a metal-like layer (54) and at least one decorative portion (32, 34, 36), which are arranged behind the rear side (52), as viewed from the visible side (50). In order to achieve a durable decorative portion, it is proposed that the metal-like layer (54) has a portion (56) that at least partially covers over the decorative portion (32, 34, 36) from the rear, as viewed from the visible side (50).

Description

PLATE UNIT WITH ORDINARY DECOR

The invention relates to a plate unit, in particular for a cooking device, with a transparent base body according to the preamble of claim 1.

It is known from the patent DE 100 14 373 C2 discloses a hob with a glass ceramic plate, which has a metal-like layer applied to its rear side. In addition, large-scale decors are also attached to the back.

The object of the invention is in particular to provide a generic disk unit in terms of a durable decoration.

The object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.

The invention relates to a plate unit, in particular for a cooking device, comprising a transparent base body with a visible side and a visible side opposite rear side, a metal-like layer and at least one decorative portion, which, viewed from the visible side, are arranged behind the rear side.

It is proposed that the metal-like layer has a section which, viewed from the visible side, at least partially covers the decorative section. It can be achieved by an advantageous protection of the decorative section. Preferably, the portion is a contiguous portion of the metal-like layer. The disk unit is advantageously designed as a disk unit for a cooking device. For example, the plate unit for a hob or a hotplate, eg in an induction, electric or gas stove, can be used. The decorative section preferably forms a line-like decorative motif which serves to indicate a specific functional zone of the panel unit, in particular a cooking zone, a display zone in which information can be displayed, etc. The functional Zone preferably associated with a functional component of the cooking device, such as a radiator, a display element, etc. The decor portion may also represent a caption of the transparent body, which serves as an indication of a particular function and / or operation of a control element arranged on the main body. Further, the decorative portion may be formed as an aesthetic ornament of the main body. The plate unit may comprise a plurality of decorative sections, each having a different color. You can also choose multiple colors for a decor section. Preferably, the decorative portion is made of an organic solution, in particular an organometallic solution, whereby production costs can be reduced.

A "transparent base body" should be understood to mean, in particular, a base body made of a material which is permeable at least to visible light. Advantageously, the material is additionally permeable to infrared radiation, which is particularly suitable for use of the plate unit for a heating device having a cooking device. In this context, a "permeable material" is to be understood as meaning a material having a permeability which is greater than 10% and preferably greater than 30% and particularly preferably greater than 50%. The transparent base body is preferably made of glass or of glass ceramic. Furthermore, a "metal-like layer" is to be understood as meaning, in particular, a layer of a material which has at least one metallic property. For this, the layer may be e.g. of a metal, a solution containing a metal, a metallic polymer, an organic metal, etc. The "visible side" of the basic body is to be understood, in particular, as a side of the basic body which faces the operator when the panel unit is used by an operator. If the plate unit is designed as a plate unit for a cooking device, then the visible side can preferably be designed as a support surface for placing cookware. A section of the metal-like layer which "covers at least partially the decorative section" is to be understood in particular to mean a section which covers at least a partial area of an edge of the decorative section. Advantageously, the decorative section is completely covered by the section.

It is also suggested that the section at least substantially cover the rear side. As a result, a protective function of the metal-like Layer advantageously be extended by the metal-like layer is used to protect the back.

If the decorative section is located on the rear side, high visibility of the decorative section can be achieved for an operator.

In this connection, it is proposed that the decor section is printed on the back side. As a result, a simple application of the decorative section to the rear side can be achieved by means of conventional methods, wherein an additional fastening means for fastening the decorative section, e.g. for the production of a material connection, can be avoided. Preferably, the decorative portion is applied by an enamel method on the back, whereby a particularly durable decorative section can be achieved.

A particularly high level of protection and a long service life of the decorative section can furthermore be achieved if the decorative section is integrated in the base body. For this purpose, the decorative section is expediently arranged in a space recessed from the base body at the rear side. In particular, the decorative portion can be embossed in the back of the body. In order to further increase the longevity of the decorative section, the decorative section can be arranged in the interior of the basic body, the decorative section being completely surrounded by a material of the basic body. The decor portion may be prior to assembly of the disk unit e.g. are integrated as standard in the body, whereby manufacturing steps can be saved in the manufacture of the disk unit.

In a preferred embodiment of the invention, it is proposed that the metal-like layer bears against the rear side, as a result of which a compact construction of the plate unit can be achieved.

Conveniently, the rear side is coated with the metal-like layer, whereby a particularly firm holding of the metal-like layer can be achieved at the rear without the use of additional fastening means. The plate unit is preferably by applying, in particular a printing of the decorative section on the rear side, and then by a coating of the rear side with the metallarti- produced layer, whereby a particularly advantageous embedding of the decorative portion can be achieved in the metal-like layer. In order to achieve a high homogeneity of the metal-like layer, this coating can advantageously be carried out in one production step. After coating the rear side with the metal-like layer, the metal-like layer can be coated with a further protective layer, whereby an advantageous protection of the metal-like layer in a further processing of the plate unit or its assembly, for example in a cooking device, can be achieved. The metal-like layer may be made of an inorganic solution. Preferably, the metal-like layer is made of an organic, in particular an organometallic solution, whereby manufacturing costs can be reduced.

In a further embodiment of the invention it is proposed that the metal-like layer is formed as a metal piece, whereby a simple production of the plate unit can be achieved. Advantageously, a long lasting piece of metal can be obtained if it is made of a noble metal, such as a metal. made of platinum, silver, copper, etc. Alternatively, the metal piece may have a base body which is coated with a layer of a noble metal. The metal piece can be attached by gluing to the back of the body. Alternatively or additionally, it can be pressed by means of a fastening means and / or by its own force against the rear side of the base body.

Further, the manufacturing cost can be further reduced if the decor portion is printed on the metal piece. In this case, the piece of metal can be produced in series with the printed decor section.

Advantageously, the decorative portion can be integrated in the metal piece, whereby a particularly long-lasting decorative portion can be achieved. The decor portion may be arranged in a space recessed from one side of the metal piece from the metal piece. In particular, the decorative portion may be embossed in the metal piece.

It is further proposed that the metal piece and the decorative portion are spaced from each other with a gap. This can cause unwanted voltages in the tallstück, which are due to tolerances in the thickness of the decorative section can be avoided.

In a preferred embodiment of the invention, it is proposed that the decorative portion is at least partially embedded in the metal-like layer. This allows a particularly high protection of the decorative section can be achieved. A "partial embedding" of the decoration section in the metal-like layer may, in particular, be understood to mean at least partial encompassing of the decoration section by a material of the metal-like layer. In this case, the decor section preferably has at least one region which, viewed from the visible side, can be seen.

In an advantageous development of the invention, it is proposed that the main body comprises a functional zone and the metal-like layer has a recessed area which is assigned to the functional zone. A "functional zone" is to be understood in particular as a region which is assigned to a functional component of a device in which the plate unit is inserted. As a result, an undesired effect of the metal-like layer on a function of the functional component and / or an effect of the functional component on the metal-like layer can be advantageously reduced. If the disk unit is intended for use in a cooking device, the functional zone may be e.g. a cooking zone as a support surface for laying a cookware, which is associated with a radiator of the cooking device. By the recessed portion of the metal-like layer in the region of the cooking zone, an undesirable heating of the metal-like layer and energy losses can be reduced. This is particularly suitable when the metal-like layer is formed as a metal piece. The region may be recessed over part of the thickness, or it may be recessed over the entire thickness of the metal-like layer, forming an opening of the layer.

Preferably, the metal-like layer is made of a material containing a noble metal. As a result, a particularly durable metal-like layer can be achieved.

Furthermore, a cooking device is proposed which has a plate unit which has a transparent main body with a visible side and a visible side. arranged over rear side, a metal-like layer and at least one decorative portion, which, viewed from the visible side, behind the rear side, comprises, wherein the metal-like layer has a portion of the decorative portion, viewed from the visible side, from behind at least partially covered. It can be achieved a cooking device with a long-lasting decor section, whereby a high ease of use of the cooking device can be achieved.

Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Show it:

1 is a cooking surface integrated in a worktop with a frame and a decorated plate unit in a view from above,

2 shows the plate unit of FIG. 1 in a sectional view with a ceramic plate, the decoration printed on the ceramic plate and a metallic coating of the ceramic plate, FIG. 3 shows a variant of the plate unit from FIG. 1 with a ceramic plate and decorations embossed in the ceramic plate, 4 shows a further variant of the plate unit from FIG. 1 with a ceramic plate printed with decorations and a piece of metal,

Fig. 5 shows an alternative embodiment of the plate unit of Figure 4, wherein the decors and the metal piece are spaced with an air gap, and

FIG. 6 shows a further embodiment of the plate unit from FIG. 4, wherein the decors are printed on the metal piece.

Figure 1 shows a cooktop cooking device 10 with a plate unit 12 and a frame 14 to which the plate unit 12 is attached. The cooking device 10 is integrated in a worktop 16 (Figure 2). The frame 14 is made of a stainless material such as stainless steel or aluminum. The disk unit The base body 18 has a plurality of functional zones 20, 22, 24, 26, which are designated by decorative sections 28a, 30a, 32a, 34a, 36a of the panel unit 12. The functional zones 20, 22, 24, 26 are designed as cooking zones and for this purpose each represent a support surface for laying a cookware, which is assigned to a radiator of the cooking device 10 arranged below the main body 18. This radiator is eg a heating resistor or a heating coil. The decor sections 28a, 30a, 32a, 34a, 36a are formed as line-like motifs. The functional zones 20, 22, 24, 26 are designated in particular with the aid of closed, curved contours, in particular with the aid of circles. Further decorative sections 38a, 40a of the plate unit 12 can be seen, each of which designates a functional zone 42 or 44 of the main body 18. These functional zones 42, 44 are designed as display zones, within which information can be displayed to an operator during operation of the cooking appliance 10 with the aid of a display (not shown) arranged below the main body 18 or integrated in the main body 18. The decorative sections 28, 30, 32, 34, 36, 38, 40 are, viewed from the perspective of an operator, arranged behind the main body 18 (see FIG. 2), which is transparent in particular to visible light. The arrangement of the decorative sections 28, 30, 32, 34, 36, 38, 40 behind the main body 18 particularly durable decorative sections can be achieved. In particular, wear by repeated contact with hot cooking utensils or the use of detergents can be avoided.

FIG. 2 shows a sectional view of the cooking device 10 designed as a hob along a line N-II (FIG. 1). The cooking device 10 is arranged in a recess of the worktop 16. The frame 14 has a support portion 46 for supporting the cooking apparatus 10 on the worktop 16. This is formed by an extension 48 of the frame 14. Trained as a glass ceramic plate body 18 of the plate unit 12 is fastened by not shown fastening means on the frame 14. In the assembled state of the plate unit 12 shown in the figure, a visible side 50 of the base body 18 faces an operator of the cooking device 10. One of the visible side 50 opposite rear side 52 of the base body 18 can also be seen in the figure. Furthermore, the decorative sections 32a, 34a, 36a can be seen, which are printed on the rear side 52 of the main body 18. The features of the decorative sections 32a, 34a, 36a and their variants described on the basis of the sectional views of FIGS. 2 to 6 likewise relate to the further decoration sections. sections 28a, 30a, 38a, 40a and their variants. The decorative sections 28a, 30a, 32a, 34a, 36a, 38a, 40a are made of a preferably inorganic temperature-resistant paint. All decorative sections can have the same color, or they can be made using different colors, which can be distinguished, for example, between the respective functions of the designated by the decorative sections functional zones.

The plate unit 12 further comprises a metal-like layer 54 a, which is applied to the rear side 52 of the base body 18. The metal-like layer 54a is made of a, preferably inorganic, solution which is a noble metal such as e.g. Platinum, includes, manufactured. Alternatively, the metal-like layer 54a may be made of an organometallic solution. The metal-like layer 54 a has a contiguous portion 56 a which continuously covers the rear side 52 of the main body 18. In this case, the section 56a covers the decorative sections 32a, 34a, 36a, viewed from the visible side 50, from behind, whereby an advantageous protection of the decorative sections 32a, 34a, 36a can be achieved. By the metal-like layer 54a, in addition to the protection of the decorative sections 32a, 34a, 36a, a further decorative precious metal-like effect can be achieved. In a further embodiment, the metal-like layer 54a may have a plurality of discrete portions separated from one another and each covering one of the decorative portions 32a, 34a, 36a from the rear, thereby further emphasizing the functional zones 20, 22, 24, 26, 42, 44 of FIG Cooking device 10 can be achieved. It is also conceivable that further sections of the metal-like layer 54a are applied to the section 56a. In particular, further sections of the metal-like layer 54a can be applied to the section 56a, by which a brightness contrast between the functional zones 20, 22, 24, 26, 42, 44 and a gap between these functional zones can be achieved.

When producing the plate unit from FIG. 2, first the decorative sections 28a, 30a, 32a, 34a, 36a, 38a, 40a are printed on the rear side 52. In a further production step, the rear side 52, on which these decorative sections have already been applied, is coated with the metal-like layer 54a. This can be done for example by an enamelling process. During the coating, the decorative sections 28a, 30a, 32a, 34a, 36a, 38a, 40a are partially embedded in the section 56a of the metal-like layer 54a. The arrangement of these decorative sections behind the main body 18 and the embedding of the decorative sections in the metal-like layer 54a can unwanted optical effects, such as in particular reflections of Dekorabschnittsmotive on the metal-like layer 54a, are avoided.

FIG. 3 shows an alternative embodiment of the plate unit 12, which is fastened to the frame 14. This has the form of a glass ceramic plate transparent base 18. Decor sections 32b, 34b, 36b in the base body 18 are embossed on the rear side 52 of the main body 18. Substantially corresponding components and features are numbered in principle with the same reference numerals, wherein the letters a (Figures 1 and 2) and b (Figure 3) and c (Figure 4) are added to distinguish the exemplary embodiments. With regard to features and functions that remain the same, reference may be made to the description of the exemplary embodiment in FIG. The following description in FIG. 3 is essentially limited to the differences from the exemplary embodiment in FIGS. 1 and 2. In addition, further decorative sections are printed on the rear side 52 of the main body 18, which correspond to the decorative sections 28a, 30a, 38a, 40a shown in FIG ,

The rear side 52 is coated with a metal-like layer 54b. The metal-like layer 54b has a contiguous portion 56b which continuously covers the rear side 52 of the main body 18. Here, the embossed decorative sections 32b, 34b, 36b are covered by the section 56b. As described above with reference to FIG. 2, alternatively, the metal-like layer 54a may have a plurality of mutually separate sections, each covering one of the decorative sections 32b, 34b, 36b. The description of this embodiment and other embodiments can also be found in the above description.

Another embodiment of the disk unit 12 is shown in FIG. This has the transparent base body 18, on which, as described with reference to Figure 2, decorative sections 32c, 34c, 36c are printed. The plate unit 12 further has a metal-like metal-like layer 54c, which is made of a noble metal. The metal-like layer 54c is glued to the rear side 52 of the base body 18 by means of a transparent adhesive 58. The metal piece forms a section 56c, which covers the decorative sections 32c, 34c, 36c. Alternatively, or in addition to adhering the metal-like layer 54c to the rear side 52, the metal-like layer 54c may be attached to the frame 14 of the cooking apparatus 10. It can be a Component of the fastening force, the metal-like layer 54c press against the decor sections 32c, 34c, 36c. From the metal-like layer 54c are also recessed areas 60, 62 in the form of openings which correspond to a respective functional zone 24 and 26 and are arranged below this functional zone 24 and 26 respectively. Thereby, an undesirable heating of the metal-like layer 54 c can be reduced during operation of the cooking device 10. As an alternative to the openings, a metal-like layer 54c can be produced in which a section with a reduced thickness is provided in each case in the region of the functional zones 24, 26. This is particularly advantageous when the cooking device 10 is designed as an induction cooking device, since heating of the metal-like layer 54c in the region of a heating coil due to eddy currents can be reduced. To further reduce such heating, the metal-like layer 54c may be selected from a material such as a non-ferromagnetic material which is permeable to an alternating field excited by the heating coil.

FIG. 5 shows a further exemplary embodiment of the plate unit 12. As in FIG. 4, this has the transparent main body 18, on which decorative sections 32d, 34d, 36d are printed. The plate unit 12 includes a metal-like layer 54d formed as a metal piece. The metal piece forms a section 56d, which covers the decorative sections 32d, 34d, 36d. The metal-like layer 54d is fixed to the frame 14. In the fastened state, the metal-like layer 54d is separated from the decor sections 32d, 34d, 36d by a gap 64, which allows greater tolerances in the thickness of the decorative sections 32d, 34d, 36d, compared to the previous embodiment, without a bias of the metal-like Layer 54d occurs due to these tolerances.

An alternative embodiment of the disk unit 12 can be seen in FIG. The plate unit 12 has a metal-like metal-like layer 54e which is attached to the rear side 52 of the main body 18 by means of the transparent adhesive 58. Alternatively or additionally, the metal-like layer 54e may be attached to the frame 14. On one of the rear side 52 of the base body 18 facing side 66 of the metal-like layer 54e decor sections 32e, 34e, 36e are printed. These decor sections 32e, 34e, 36e bear against the rear side 52. In a further embodiment variant, the metal-like layer 54e embodied as a metal piece can be fastened to the frame 14 such that the decorative sections 32e, 34e, 36e are separated from the rear side 52 of the base body 18 by a gap. reference numeral

10 cooking device 62 recessed area

12 plate unit 64 gap

14 frame 66 page

16 worktop

18 basic body

20 functional zone

22 Function zone

24 functional zone

26 Function zone

28 decor section

30 decor section

32 decor section

34 decorative section

36 decor section

38 decor section

40 decorative section

42 Function zone

44 Function zone

46 support area

48 extension

50 visible side

52 backside

54 metal-like layer

56 section

58 adhesive

60 recessed area

Claims

claims

1. plate unit, in particular for a cooking device (10), comprising a transparent base body (18) with a visible side (50) and one of the visible side

(50) arranged opposite the rear side (52), a metal-like layer (54) and at least one decorative portion (32, 34, 36), which, viewed from the visible side (50), behind the rear side (52) are arranged, characterized in that the metal-like layer (54) has a section (56) which at least partly covers the decorative section (32, 34, 36) when viewed from the visible side (50).

2. Plate unit according to claim 1, characterized in that the portion (56) the rear side (52) continuously at least substantially covers.

3. plate unit according to claim 1 or 2, characterized in that the decorative portion (32, 34, 36) rests against the rear side (52).

4. plate unit according to claim 3, characterized in that the decor portion (32a, 34a, 36a, 32c, 34c, 36c, 32d, 34d, 36d) on the rear side (52) is printed.

5. Plate unit according to one of the preceding claims, characterized in that the metal-like layer (54a; 54b) rests against the rear side (52).

A panel unit according to claim 5, characterized in that the rear face (52) is coated with the metal-like layer (54a; 54b).

7. Plate unit according to one of claims 1 to 5, characterized in that the metal-like layer (54c; 54d; 54e) is formed as a metal piece.

8. plate unit according to claim 7, characterized in that the metal piece and the decor portion (32d, 34d, 36d) with a gap (64) are spaced from each other.

9. panel unit according to one of claims 1 to 7, characterized in that the decor portion (32 a, 34 a, 36 a) in the metal-like layer (54 a) is at least partially embedded.

10. Plate unit according to one of the preceding claims, characterized in that the base body (18) comprises a functional zone (24, 26) and the metal-like layer (54c) has a recessed area (60, 62) which corresponds to the functional zone (24, 26 ) assigned.

A plate unit according to any one of the preceding claims, characterized in that the metal-like layer (54) is made of a material containing a noble metal.

12. cooking device with a plate unit (12) according to any one of the preceding claims.