DE102015208833A1 - Hob plate, hob, manufacturing process and use - Google Patents

Abstract

A hob plate (10), in particular for a gas hob, comprises a first transparent glass plate (11) and a second transparent glass plate (12), which are glued together by means of an adhesive layer (13) to form a laminated glass plate (10).

Description

The present invention relates to a cooktop panel, a hob, a production method for a cooktop plate and a production method for a hob, wherein the cooktop is in particular a gas hob. The invention further relates to the use of a hob plate.

A cooktop includes one or more hotplates adapted to heat or heat a cooking vessel containing a food to be cooked. Depending on the heating mechanism of the hob, a distinction can be made between a gas hob, an induction hob, a radiant heat cooker and an electric cooker.

A gas hob includes at least one gas burner for generating flames by igniting a flammable gas and / or gas mixture. An induction cooking station comprises at least one induction element for generating eddy currents in a magnetizable cooking vessel. A heat radiating cooking station has at least one heat radiation source that generates thermal radiation. An electric cooking station has at least one heating resistance element which generates heat due to an ohmic resistance.

Furthermore, a hob can have a hob plate on which the cooking zones are arranged. For safety reasons, it may be advantageous to make the hob plate opaque. In addition, this can be a label, marking, labeling, etc. are facilitated on or on the hob plate.

Against this background, an object of the present invention is to provide an improved hob plate for a hob, in particular gas hob, and an improved hob, in particular gas hob.

Accordingly, a hob plate according to claim 1 is proposed. In particular, the cooktop panel may comprise a first transparent glass plate and a second transparent glass plate, which are glued together by means of an adhesive layer to form a laminated glass plate.

The hob plate is preferably suitable to be used in a gas hob. In embodiments, the adhesive layer serves with a suitable coloring to the cooking zone marking.

The transparent glass plates are formed, for example, from a glass which is produced from an amorphous body which is produced in particular by supercooling a melt and / or from a sol-gel process, irrespective of its chemical composition and the temperature range of its solidification. In particular, as a result of a gradual increase in viscosity during subcooling, such a glass may take on the mechanical properties of the solid bodies. In this case, the transition from the liquid to the glass state can be reversible.

Glasses often have a lower thermal conductivity compared with a glass ceramic, that is, a smaller amount of heat flows through a glass layer than through a layer of glass ceramic. For example, the thermal conductivity is measured as the amount of heat flowing per unit time (e.g., one second) through a particular thickness (e.g., one meter) and through a unit area (e.g., one square meter) of a fabric layer (of glass or glass-ceramic). For this reason, glasses can be more thermally insulating than a glass-ceramic.

A reduced thermal conductivity of the hob plate can lead to reduced heat transfer from above the hob plate to elements below the hob plate and thus protect, for example, the electronics, which is located below the hob plate, from damage and / or destruction by the heat. In addition, by reducing the thermal conductivity of the hob plate, a heat dissipation from the cooking vessel in the direction of the hob plate can be reduced, so that an energy loss during a heating process is reduced by the hob.

A cooking vessel containing a food to be heated is, for example, positioned and heated on the hob plate of the hob. For example, a gas main line, a valve device, one or more gas supply lines and / or one or more electrical lines are arranged below the hob plate of the hob.

In particular, the cooktop panel may comprise a cover plate and a carrier plate, wherein, in a horizontal arrangement of the cooktop plate, the cover plate, an upper edge layer and the support plate form a lower edge layer of the cooktop plate. For example, For example, the first glass plate may be formed as the cover plate and the second glass plate as the support plate of the cooking field plate. In this case, the cover plate may have a smaller thickness than the support plate, so that a better transparency is given by the cover plate, while the thicker support plate provides stability. The cover plate and carrier plate may each have a thickness of 1-20 mm, preferably 2-10 mm, more preferably 3-8 mm.

In particular, a surface of the first glass plate and / or the second glass plate may be smooth be educated. Further, the surface of the first glass plate and / or the second glass plate may be free from a surface treatment. The surface treatment may refer to a change of properties of a surface. The surface treatment may include activation, etching, roughening, porosity change, epitaxy, depositing additional material on the surface. Furthermore, the surface of the first glass plate and / or the second glass plate may be formed closed, ie, have no openings and / or slots.

The adhesive layer may comprise one or more intermediate layers which, for example, are glued together, welded and / or pressed together. The adhesive layer may in particular be adapted to hold together the glass plates between which the adhesive layer is located. The adhesive layer may be formed as a sheet-like layer, in particular as a film, a sheet, a sheet and / or a plate or a combination thereof, and arranged parallel to the glass plates. Alternatively or additionally, the adhesive layer may be present as a layer of one or more hardened and / or solidified adhesive material (s). With a horizontal arrangement of the glass plates and the adhesive layer, vertical edges of the adhesive layer and vertical edges of the glass plates can end flush to the side.

The adhesive material and the carrier layer can each have a thickness of 10 μm-1000 μm, preferably 20-500 μm and even more preferably 50-200 μm.

An adhesive layer, an adhesive material and / or a carrier layer coated on both sides with an adhesive material can have an adhesion of 2-20 N / cm, preferably 4-15 N / cm, to the glass surface, for example after Standard ASTM D2979 , exhibit.

According to one embodiment, the adhesive layer comprises a carrier layer, which is coated on both sides with an adhesive material.

The transparent glass plates may be bonded together by, for example, disposing a backing layer adhered to both sides between the glass plates. By coating the carrier layer on both sides with the adhesive material, the carrier layer can be adhesive on both sides. In particular, the carrier layer may be a plastic film which, upon fracture of one or both of the glass plates, may hold the resulting pieces of glass so as to prevent damage to the elements of the hob. In addition, this can ensure increased safety of a person operating the hob.

The carrier layer can be formed as a flat layer, in particular as a film, a layer, a sheet and / or a plate. The carrier layer may in particular be printable and / or transparent. Furthermore, the carrier layer may comprise a plurality of layers which, for example, are glued, welded and / or pressed together.

According to one embodiment, the carrier layer is printed in at least one area in an opaque manner.

An opaque printed area is e.g. in that it emits light in the visible, i. does not transmit electromagnetic radiation in the visible wavelength range (e.g., 380 nm-780 nm). In other words, the opaque printed area is opaque and / or opaque in the visible wavelength range. An object located behind the opaque layer may not be visible, or at least not clearly visible.

As a result, a person using the hob can not look into the area below the hob plate of the hob, so that, for example, the elements below the hob plate are not visible to the person. This can e.g. prevent distraction of the person when operating the hob.

In particular, the non-transparently printed area can be used for marking, marking and / or inscribing a cooking area, an operating area, operating element and / or other element or area of the hob. For example, in the non-transparent printed area, the scales of a control knob for driving a heating power of the hotplate can be marked. For example, in the transparently printed area, a plurality of operating elements can be identified graphically and / or in writing in such a way that they can be assigned to the respective cooking area. Furthermore, the non-transparent printed area may contain important instructions, warnings and / or instructions when using the hob.

The design as a laminated glass plate, are embedded in the markers between the two plates, the markings are protected, for example, during installation of the hob plate from damage. When used in particular as a hob plate for a gas hob, a protection of markings when arranged from below fittings or gas burners are desirable. Because with conventional printing the underside of cooktop panels, it may be in the assembly of gas burners or the like Scratches in the printing come, which are undesirable.

According to one embodiment, the adhesive material with which the carrier layer is coated is at least partially colored.

According to a further embodiment, the adhesive layer has at least two areas that are colored differently.

In particular, a pattern, a mark, a sign, a track, a mark and / or a decor can be made visually recognizable by means of the coloring. The colored adhesive material, in combination with a printed backing layer, may have an additional effect, e.g. an improved contrast of the printing of the carrier layer or a simplified production bring about. In addition, positions of heating elements of the hob can be marked to locate the hobs of the hob. This can increase the efficiency of the heating process.

According to a further embodiment, the adhesive layer comprises a polymerization adhesive, a polycondensation adhesive, a polyaddition adhesive and / or a silicone adhesive.

Chemically curing adhesives, in particular reaction adhesives, solidify by chemical reactions. Here, the individual chemical building blocks for the adhesive material are introduced in the correct ratio in the adhesive layer. Depending on the type of chemical reaction, a distinction is made between polymerization, polycondensation or polyaddition.

The chemically curing adhesives include, in particular, polymerization adhesives, polycondensation adhesives and polyaddition adhesives. In particular, the adhesive layer may include cyanoacrylate adhesives, methyl methacrylate adhesives, anaerobic curing adhesives, unsaturated polyesters, radiation curing adhesives, phenol-formaldehyde resin adhesives, silicones, silane crosslinking polymer adhesives, polyimide adhesives, polysulfide adhesives, epoxy adhesives, and / or polyurethane adhesives include.

According to a further embodiment, the adhesive layer and / or one of the intermediate layers has a transparent region in such a way that the hotplate plate is transparent in the region.

A region may be considered transparent if it detects the visible light, i. electromagnetic waves in the visible wavelength range (e.g., 380 nm-780 nm). In particular, the transparent area may be provided as a non-colored area in the adhesive layer and / or intermediate layer. Additionally or alternatively, the transparent region may be formed as a recess in the adhesive layer and / or intermediate layer, i. an area corresponding to the transparent area may be cut out of the adhesive layer and / or intermediate layer and / or removed. For example, an additional element to be visible from the top panel may be mounted in or below the transparent area.

According to a further embodiment, a laminated color carrier foil is arranged between the first and the second glass plate.

The laminated color carrier sheet may e.g. comprise a plurality of color carrier layers, each of which may be printed with an individual color, optionally with one or more patterns, markings, characters, tracks, markings and / or decorations. The color carrier film may also comprise transparent or partially printed films. The color design of the hob plate can be done in particular by the differently printed color carrier layer are superimposed. As a result, relevant positions such as the hotplates can be marked.

The glass plates can in particular be glued together by penetrating the adhesive material in a liquid state between the glass plates and / or applied and then hardened / evaporated. The adhesive material may be physically setting, i. a polymer is incorporated in the adhesive layer and then a physical process, e.g. evaporation of the solvent, release of a dispersing agent, cooling of the adhesive material and / or melting of polymer beads which are a plasticizer.

According to a further embodiment, at least one of the first or second glass plate comprises a single-layer and / or multi-layered safety glass.

The glass plate comprising such a safety glass can itself consist of several layers. The safety glass can e.g. comprise a scratch-resistant glass material. In particular, the safety glass may comprise at least one plastic film which, in the event of breakage, may prevent fragmentation of the glass plate. In particular, such a safety glass may at least partially contain a gorilla glass from Corning.

According to another embodiment, the cooktop panel comprises at least one opening or passage for supplying a gas through the cooktop panel to a burner.

In a gas hob, a gas burner can be arranged on or above the hob plate. An associated gas supply line, a valve device and a gas main line can be arranged below the hob plate, so that a passage is necessary to supply a flammable gas (or gas mixture) to the gas burner. Accordingly, the passage is in particular an opening which drills through the hob plate. The passage is preferably formed perpendicular to a surface of the cover plate and / or the support plate of the laminated glass plate.

According to a further embodiment, the adhesive layer has an intransparent printed area and / or a colored area around the feedthrough.

In particular, the intransparent printed area and / or colored area may be formed such that the gas burner or the gas hob is optically clear. For example, the backing layer may have a black background color and concentric white lines to indicate the passageway and thus the gas burner. Alternatively or additionally, straight lines may be formed perpendicular to a circumference of the passage so as to characterize the exact position of the gas hob.

According to a further embodiment, an elastic intermediate layer is arranged between the first and the second glass plate.

An elastic intermediate layer may dampen and / or absorb a mechanical stress exerted on the cooktop panel to prevent damage and / or destruction of the glass panels. An elastic intermediate layer may contain a high proportion of voids, e.g. from air cushions, air chambers, air-filled volumes and / or pores, on a total volume of the intermediate layer and thereby be able to return to a deformation and / or deformation in the original, in particular flat, shape.

For a check of the cooktop panel for resistance to breakage and / or elasticity so-called head impact tests can be carried out, in which, based on the international Standard ECE R21 , a 6.8 kg steel ball hits the hob plate at a speed of 24.1 km / h. The cooktop panel could be considered unbreakable if it does not break in the impact.

According to a further embodiment, at least one heat-insulating intermediate layer is arranged between the first and the second glass plate for reducing a heat transfer through the laminated glass plate.

According to a further embodiment, at least one infrared-reflecting intermediate layer is arranged between the first and the second glass plate. The at least one infrared reflecting intermediate layer is arranged to reduce a transmittance of heat radiation through the laminated glass plate.

By inserting one or more heat-insulating and / or infrared-reflecting intermediate layers, the heat transfer through the laminated glass plate is suppressed and / or reduced. In particular, the heat-insulating intermediate layer can consist of several layers and / or layers and / or comprise one or more air chambers, one or more air cushions and / or one or more air-filled layers. In particular, the heat-insulating intermediate layer has a low coefficient of thermal conductivity. The heat-insulating intermediate layer is particularly suitable for reducing heat diffusion through the heat-insulating intermediate layer.

A heat-insulating intermediate layer may comprise porous solids, in particular aerogels. In this case, porous solids can consist of more than 50% of the volume of cavities, which can be filled with air, for example. Such porous solids may have a sufficiently low thermal conductivity, which is suitable for thermal insulation.

The heat radiation, i. electromagnetic radiation mostly in the infrared wavelength range, molecules in solids, e.g. Elements of the hob, set in motion, so that the solids heat up. An intermediate layer which reflects in the infrared wavelength range has a reflectance in this wavelength range which is higher than the transmission and / or absorption coefficient, i. a majority of the electromagnetic radiation in the infrared wavelength range is reflected at this intermediate layer, instead of being transmitted or absorbed. A reflectance indicating, for example, a reflected portion of an incident light intensity may be greater than 50%, preferably greater than 70% and even more preferably greater than 85%.

By attaching a heat-insulating intermediate layer and / or an infrared-reflective intermediate layer, the heat transfer can be reduced by the cooktop plate. As a result, heat loss from a cooking vessel heated by the hob can be reduced since less heat is removed from the vessel in the direction of the hob plate.

According to a further embodiment, at least one electrically insulating intermediate layer is arranged between the first and the second glass plate for suppressing electric currents in the hob plate.

An electrically insulating intermediate layer may have a higher electrical resistivity, for example of 10 ¹⁰ -10 ³⁰ Ωmm ² / m, as an electrically conductive material. In particular, the electrically insulating intermediate layer may at least partially comprise a plastic, for example PTFE, polyoxymethylene.

Furthermore, a hob is proposed which comprises a hob plate described above. The hob also comprises at least one heating element, in particular a gas burner, which is arranged on or on the hob plate. In this case, the adhesive layer has an at least partially printed or colored carrier layer.

The cooktop can have one or more cooking zones, which are marked with the help of partially different colors or markings in the adhesive layer. In this case, the labeling of the cooking zones can be protected from surface damage, since the adhesive layer is arranged below the cover plate and is protected from below by the carrier plate.

The hob is set up to heat the cooking vessel, which is preferably to be positioned above the cooking surface of the hob. The hob is preferably a gas hob. The gas hob has at least one gas hob with the gas burner as a heating element. The gas burner can be arranged on or above the hob plate. For each gas burner, a passage may be formed in the cooking plate, which allows the supply of the gas to the associated gas burner. Alternatively or additionally, it is conceivable that the passage receives a mixing chamber of the associated gas burner. Furthermore, it is conceivable that the gas hob has no passage, but that the at least one gas burner is arranged below the hob plate.

It is furthermore conceivable that the hob is an induction hob, a heat radiation cooking field or an electric hob. Accordingly, the heating element may comprise an induction element, a heat radiation source or a heating resistance element.

In the induction hob, the induction element, for example, a copper coil, in operation generate a variable magnetic field, which causes an eddy current in the magnetizable material in the cooking vessel. Since the cooking vessel has an ohmic resistance, the eddy current can lead to a conversion of electrical energy into thermal energy, so that the cooking vessel is heated. Preferably, a bottom plate of the cooking vessel contains the magnetizable material to reduce a distance between the induction element and the magnetizable material, thereby increasing efficiency in eddy current generation.

Furthermore, a method for producing a hob plate is proposed. In the method, a first transparent glass plate and a second transparent glass plate are bonded together by means of an at least partially colored adhesive layer to form a laminated glass plate.

Gluing can be done by applying a double-sided adhesive layer, e.g. coated on both sides with an adhesive material is placed between the layers to be bonded and / or plates. In this case, a compression of the layers and / or plates to be bonded may be required. Alternatively or additionally, an adhesive material may be introduced between the layers and / or plates to be bonded and solidified / hardened.

Furthermore, a method for producing a hob is proposed. In the method, a cooktop panel is produced in the above-mentioned method. In addition, a heating element, in particular a gas burner, is arranged on or on the hob plate.

The proposed production method of a cooktop panel may comprise at least one of the following method steps:
Providing a cover glass plate having a top and a bottom,
Applying an adhesive layer with at least one adhesive material on the underside of the cover glass plate,
Attaching a carrier plate to the adhesive layer, and
Solidifying the at least one adhesive material,
wherein the adhesive layer has at least two regions that are distinguishable from each other due to different colors,
Arranging one or more intermediate layers between the cover glass plate and the carrier glass plate.

Furthermore, a use of a cooking field plate described above in one and / or for a gas hob is proposed.

Through the use of a hob plate proposed above, a mark, a mark and / or a decor embedded in the laminated glass plate can be better protected chemically and / or mechanically from damage. In particular, the marking, marking and / or decor are mounted below a glass plate and thereby protected from wear, discoloration and / or contamination.

Furthermore, by using the laminated glass plate, improved thermal insulation over the conventional technique, e.g. Glass ceramic plate, be given. Thereby, an improved protection for the elements, which are arranged below the hob plate, before a waste heat of a cooking vessel, which is heated above the hob plate, can be achieved. Further, due to the improved heat insulation, the heating process by the cooktop can be made more efficient.

The embodiments and features described for the proposed hob plate and the proposed hob apply accordingly to the proposed method.

Further possible implementations of the invention also include not explicitly mentioned combinations of features or embodiments described above or below with regard to the exemplary embodiments. The skilled person will also add individual aspects as improvements or additions to the respective basic form of the invention.

In particular, an adhesive layer and / or at least one of the intermediate layers may comprise one or more sub-layers. An adhesive and intermediate layer may be understood to mean a (material) layer, a laminated layer, a layer, a plate and / or a film and a combination thereof.

Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the embodiments of the invention described below. Furthermore, the invention will be explained in more detail by means of preferred embodiments with reference to the attached figures.

1 shows an embodiment of a laminated glass plate as hob plate in a schematic cross-sectional view;

2 shows a further embodiment of a laminated glass plate as hob plate in a schematic, perspective view;

3 shows exemplary embodiments of a printed carrier layer of a laminated glass plate in a schematic plan view;

4 shows an embodiment of a laminated glass plate as cooking plate for a gas hob with gas burners in a schematic perspective view;

5 shows the laminated glass plate with the gas burners 4 in a further schematic, perspective view;

6 shows an embodiment of a laminated glass plate as a hob plate in a schematic cross-sectional view;

7 shows an embodiment of a gas hob with the laminated glass plate as a hob plate in a schematic cross-sectional view; and

8A - 8G show an embodiment of a method for producing a gas hob.

In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise.

1 shows an embodiment of a laminated glass plate 10 as a hob plate in a schematic cross-sectional view.

The laminated glass plate 10 is as a hob plate 10 in particular designed for a gas hob. An upper transparent glass plate 11 and a lower transparent glass plate 12 are arranged parallel to each other. An adhesive layer 13 extending between the upper and the lower transparent glass plate 11 . 12 is located, glued the glass plates 11 . 12 together. In particular, the upper transparent glass plate 11 be regarded as a cover plate on the top T11 of the one or more cooking vessels can be turned off. In particular, the lower transparent glass plate 12 be considered as a support plate on the underside B12 one or more other elements of the gas hob, such as gas lines, electrical lines and valve devices may be attached.

In particular, the adhesive layer may be 13 comprise a plurality of intermediate layers, which between a bottom B11 of the cover plate 11 and a top T12 of the carrier plate 12 are arranged. In particular, the adhesive layer is 13 at the bottom B11 of the cover plate 11 and the top T12 of the carrier plate 12 at. Thus, the adhesive layer is 13 in surface contact with the cover plate 11 and the carrier plate 12 ,

The glass plates 11 . 12 may contain proportions of inorganic, non-metallic glasses. So can the glass plates 11 . 12 phosphatic glasses, borosilicate glasses, quartz glasses, alkali borate glasses, aluminosilicate glasses, lead silicate glasses, alkali silicate glasses, alkali-alkaline earth silicate glasses, halide glasses and / or chalcogenide glasses. In particular, the glass plates may contain a conventional soda-lime glass and / or a chemically toughened aluminosilicate glass, eg "Gorilla Glass" from Corning.

The cover plates 11 . 12 may in particular have a thickness of 2 mm-10 mm. The adhesive layer 13 may for example be 1 micron-10 mm, preferably 0.05-2 mm thick.

By gluing the glass plates 11 . 12 together a fragmentation of the glass plates can be prevented in a break.

2 shows a further embodiment of a laminated glass plate 20 as a hob plate in a schematic, perspective view.

The laminated glass plate 20 is designed as a hob plate in particular for a gas hob. Two transparent glass plates 21 . 22 are as a cover plate 21 and support plate 22 arranged parallel to each other. An adhesive layer 23 is located between the glass plates 21 . 22 and is parallel to the glass plates 21 . 22 arranged. The edges of the adhesive layer 23 close flush with the edges of the glass plates 21 . 22 from. Alternatively, the cover plate 21 have a greater lateral extent, ie the edges of the cover plate 21 Can the edges of the adhesive layer 23 and the carrier plate 22 overhang to be able to rest on a projection of a worktop.

The adhesive layer 23 comprises a carrier layer which is inked or printed on the entire surface with one or more nontransparent colors. Alternatively or additionally, the carrier layer may be coated with a colored adhesive material. Both the glass plates 21 . 22 as well as the adhesive layer 23 have two bushings 24a . 24b on, as rectilinear, continuous openings in the glass plates 21 . 22 and the adhesive layer 23 are formed. The bushings 24a . 24b are especially for a gas supply from below the hob plate 20 through the hob plate 20 through to hotplates above the hob plate 20 suitable.

The adhesive layer 23 , in particular the carrier layer of the adhesive layer 23 , has markings 25a . 25b on, each the bushings 24a . 24b mark. Preferably, the markers 25a . 25b a color or shade, the / against a background color, ie a total area coloring, the adhesive layer 23 , in particular the carrier layer of the adhesive layer 23 , is visually recognizable. For example, the adhesive layer 23 dyed black and the markings 25a . 25b be white. In another example, the adhesive layer may 23 reddish-brown and the marks 25a . 25b dyed black. Furthermore, the markings 25a . 25b have different colors from each other.

The adhesive layer 23 is adhesive on both sides, for example, formed as an adhesive film or coated on both sides with an adhesive material. By pressing together, the glass plates 21 . 22 with the intermediate adhesive layer 23 to a laminated glass plate 20 glued as a hob plate.

3 shows exemplary embodiments of a printed carrier layer 31 - 33 a laminated glass plate in a schematic plan view.

The carrier layers 31 - 33 each have two bushings 34 in particular, which are set up for a gas supply to the associated gas cookers. The carrier layers 31 - 33 are each with markings 35 - 37 printed or according to the markings 35 - 37 inked. The marks 35 - 37 each mark the positions of the bushings 34 and in particular the associated gas hobs. In this way, an orientation aid for a person using the hob can be created. The marks 35 are in the form of concentric circles around the bushings 34 educated. The marks 37 are as colored rings around the bushings 34 educated. The marks 37 are formed in the form of a cross and corresponds to the markings 24a . 24b in 2 ,

Furthermore, the carrier layers have 31 - 33 two more openings 38 on, which are particularly suitable for the passage of an axle or a shaft of a control element. For example, the scales of a rotary control knob can be marked 39 be labeled and labeled with the caption or marker 39 from the cover and carrier plate 41 . 42 enclosed and protected against scratching.

4 shows an embodiment of a laminated glass plate 40 as hob plate for a gas hob with gas burners 47 in a schematic, perspective view.

Between the cover plate 41 and the carrier plate 42 , which are formed as transparent glass plates and arranged parallel to each other, are a carrier layer 45 and an intermediate layer 46 parallel to the glass plates 41 . 42 arranged. The carrier layer 45 and the intermediate layer 46 together form an adhesive layer 43 , with the help of which the glass plates 41 . 42 glued together. The intermediate layer 45 is in particular formed as a thermally and electrically insulating layer.

Both the cover and carrier plate 41 . 42 as well as the carrier and intermediate layer 45 . 46 have bushings 44 on, which are suitable for a gas supply from below the hob plate to cooking above the same. The gas burners 47 be on the cover plate 41 arranged so that they are with the bushings 44 are connected. Through the bushings 44 may be a combustible gas, eg butane, or gas mixture, eg butane-air mixture, to the respective gas burners 47 stream.

The carrier layer 45 is colored with a color so that the hob plate is not transparent, and has markings 48 on, which is opposite to a background color of the carrier layer 45 are visually recognizable. The marks 48 identify the locations of the bushings 44 and in particular the associated cooking zones. For example, the carrier layer 45 black colored overall, and the markings 48 are white.

The intermediate layer 46 , In particular, a thermally and electrically insulating insulating layer comprises a heat and electrically insulating material, such as a plastic, foam and / or rubber. The intermediate layer 46 is optional and may be configured to provide a flow of current as well as heat transfer through the laminated glass plate 40 to suppress and / or reduce.

Furthermore, the carrier layer 45 one of the carrier layers 31 - 33 in 2 correspond and more executions 38 as well as associated markings 39 for a control element.

Both the carrier layer 45 as well as the intermediate layer 45 . 46 may be one or both sides, at least partially coated with an adhesive material so as to be glued together. In particular, the carrier layer 45 provided on a top T45 with an adhesive material to the cover plate 41 to be glued. The intermediate layer 46 is at the bottom B46 provided with an adhesive material to connect to the carrier plate 42 to be glued.

5 shows the laminated glass plate 40 with the gas burners 47 out 4 in a further schematic, perspective view. In particular 5 the laminated glass plate 40 out 4 in glued condition.

The gas burners 47 are arranged on the top T41 such that they pass through the bushings 44 completely cover, ie cover so that the bushings 44 in a plan view of the gas burner 47 are not visible.

Preferably, above are the gas burners 47 formed the associated cooking areas. The marks 48 are through the transparent cover plate 41 visible and thus characterize the positions of the gas burners 47 , in particular the cooking zones. This can be an orientation guide for the hob 40 be created operating person.

6 shows an embodiment of a laminated glass plate 60 as a hob plate in a schematic cross-sectional view.

The hob plate 60 comprises two transparent, parallel to each other arranged glass plates as a cover plate 61 and support plate 62 with an adhesive layer 63 between. The cover plate 61 , Support plate 62 and adhesive layer 63 are glued together.

The adhesive layer 63 comprises a carrier layer 65 and an optional insulating interlayer 66 , The intermediate layer 66 can in the carrier layer 65 to be functionally included. The cover plate 61 , the support plate 62 as well as the adhesive layer 63 have in the correct position superposed bushings 64 on, which are suitable for a gas supply. Lateral edges K63 of the adhesive layer 63 and lateral edges K62 of the carrier plate 62 can finish flush. Lateral edges K61 of the cover plate 61 Overhang edges K62, K63 laterally and thus form a cantilevered section 69 ,

The carrier layer 65 is colored black on the entire surface and has markings 68 in areas around the bushings 64 on. In particular, the carrier layer 65 in a plan view of one of the carrier layers 31 - 33 in 3 correspond. The marks 68 are in a plan view through the cover plate 61 through visually recognizable.

7 shows an embodiment of a gas hob 70 with the laminated glass plate 60 as a hob plate in a schematic cross-sectional view.

The gas hob 70 is in an opening 72 a worktop 71 used. This is the cantilevered section 69 on a projection 73 the worktop 71 on. A top T61 of the hob plate 60 is in particular flush with a top T71 of the worktop 71 ,

gas burner 67 are arranged on the top T61 such that the gas burners 67 the bushings 64 completely cover. Furthermore, holders can be formed on the upper side T61, which are the gas burners 67 corresponding to the bushings 64 position and fix. To the gas burner 67 In each case a frame is formed, which has several fingers 74 around the respective gas burner 67 around, around a cooking vessel 75 from the gas burner 67 to space.

Inside the bushings 64 in the hob plate 60 Gas supply lines and / or mixing chambers may be formed. gas supply lines 75 connect the bushings 64 with a valve device 76 , The valve device 76 can be connected to a gas main and thus set up, the gas hob 70 to supply with a combustible gas. The gas supply lines 75 and the valve device 76 are especially below the hob plate 60 arranged.

The marks 68 indicate the positions of the gas burners in a plan view 67 and thus in particular the gas cookers. This is an orientation aid for a gas hob 70 serving person created. In addition, the carrier layer 65 have further markings, markings and / or labels that an operation of the gas hob 70 facilitates and / or safety when operating the gas hob 70 elevated.

8A - 8G show an embodiment of a method for producing a laminated glass plate 80 as hob plate for a gas hob.

In 8A becomes a first, optically transparent, glass plate as a cover plate 81 provided. The cover plate 11 is horizontally arranged so that a bottom B81 above and a top T81 below. The cover plate 81 may include a safety glass, eg Gorilla Glass. The surfaces T81, B81 of the cover plate 81 are smooth.

In 8B will be at least one implementation 84a in the cover plate 81 shaped. The implementation 84a creates a straight, continuous opening between the top T81 and the bottom B81 of the cover plate 81 ,

In 8C becomes a carrier layer 85 on the underside B81 of the cover plate 81 applied. In this case, there is an upper side T85 of the carrier layer 85 at the bottom B81 of the cover plate 81 at. The carrier layer 85 is total area, especially black, printed. The carrier layer 85 has an implementation 84b on that with the implementation 84a the cover plate 81 corresponds. The implementation 85 has markings 87 in an area around the execution 84b on. The marks 87 can the marks 35 - 37 in 3 correspond. The carrier layer 85 is a plastic film coated on both sides with an adhesive material. Alternatively or additionally, the carrier layer 85 be a self-adhesive film.

In 8D becomes an intermediate layer 86 , which is formed in particular as a thermally and electrically insulating insulating layer, on a bottom B85 of the carrier layer 85 applied. The intermediate layer 86 has an implementation 84c on that with the implementation 84a the cover plate 81 corresponds. The carrier layer 85 and the intermediate layer 86 together form an adhesive layer 83 , wherein the intermediate layer 86 is optional and in the carrier layer 85 can be included functionally. The intermediate layer 86 is in particular a plastic layer coated on both sides with an adhesive material.

In 8E , a second glass plate 82 is on a bottom B86 of the intermediate layer 86 hung up. If the intermediate layer 86 deleted, the glass plate is 82 on the underside B85 of the carrier layer 85 hung up. The glass plate 82 has an implementation 84d on that with the implementation 84a the cover plate 81 corresponds. The glass plates 81 . 82 be with the help of the intermediate adhesive layer 83 glued together. The second transparent glass plate 82 serves as a support plate of the hob plate 80 , In a horizontal arrangement, as in 8E is shown, a bottom B82 of the support plate 82 up.

In a further method step, the laminated glass plate 80 turned so that, in a horizontal arrangement of the laminated glass plate 80 as in 8F shown, the top T81 of the cover plate 81 pointing upwards, and the underside B82 of the carrier plate 82 pointing down. Accordingly, the cover plate 81 above the carrier plate 82 arranged. The bushings 84a - 84d together make a passage 84 the laminated glass plate 80 , The marks 87 are in a plan view, ie from above the top T81, through the transparent cover plate 81 visible through.

In 8G becomes the laminated glass plate 80 as hob plate for a gas hob 180 used. A gas burner 181 is on top T81 of the cover plate 81 arranged such that the gas burner 181 the implementation 84 completely covers. A gas supply line 182 connected to a valve device 183 is connected from below the laminated glass plate 80 with the implementation 84 connected. A frame with several fingers 184 becomes the gas burner 181 arranged.

Although the present invention has been described with reference to embodiments, it is variously modifiable. For example, the adhesive layer may comprise a plurality of intermediate layers, and the order of the carrier layer and the intermediate layer (s) may be varied. The intermediate layers may be colored or transparent. The backing layer may comprise at least one laminated layer.

Furthermore, the proposed laminated glass plate can be used as a hob plate for hobs beyond a gas hob, especially for induction hobs. In this case, it may be advantageous to design the laminated glass plate without feedthroughs and to use insulating intermediate layers. Induction elements could be arranged on an underside of a carrier plate of the laminated glass plate and, for example, pressed upwards.

The proposed hob plate and the proposed hob, especially gas hob, create a way to identify, mark and / or label that is protected from damage.

LIST OF REFERENCE NUMBERS

10

 Laminated glass top, hob plate

11

 cover plate

12

 support plate

13

 adhesive layer

20

 Laminated glass top, hob plate

21

 cover plate

22

 support plate

23

 adhesive layer

24a, 24b

 execution

25a, 25b

 mark

31-33

 backing

34

 execution

35-37

 mark

38

 execution

39

 mark

40

 Laminated glass top, hob plate

41

 cover plate

42

 support plate

43

 adhesive layer

44

 execution

45

 backing

46

 interlayer

47

 gas burner

48

 mark

60

 Laminated glass top, hob plate

61

 cover plate

62

 support plate

63

 adhesive layer

64

 execution

65

 backing

66

 interlayer

67

 gas burner

68

 mark

69

 section

70

 Gas hob

71

 countertop

72

 opening

73

 projection

74

 finger

75

 gas pipe

76

 valve means

80

 Laminated glass top, hob plate

81

 cover plate

82

 support plate

83

 adhesive layer

84, 84a-84d

 execution

85

 backing

86

 interlayer

87

 mark

180

 Gas hob

181

 gas burner

182

 gas pipe

183

 valve means

184

 finger

B11-B86

 bottom

K61-K63

 edge

T11-T86

 top

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• Standard ASTM D2979 [0016]
• Standard ECE R21 [0044]

Claims (15)

Hob plate ( 10 ), in particular for a gas hob, comprising: a first transparent glass plate ( 11 ) and a second transparent glass plate ( 12 ), which by means of an adhesive layer ( 13 ) to a laminated glass plate ( 10 ) are glued together. Hob plate according to claim 1, characterized in that the adhesive layer ( 13 ) a carrier layer ( 31 - 33 ), which is coated on both sides with an adhesive material. Hob plate according to claim 2, characterized in that the carrier layer ( 31 - 33 ) in at least one area ( 35 - 37 ) is printed intransparent. Hob plate according to claim 2, characterized in that the adhesive material is at least partially colored. Hob plate according to one of claims 1-4, characterized in that the adhesive layer ( 13 ) at least two areas ( 35 - 37 ), which are colored differently. Hob plate according to one of claims 1-5, characterized in that the adhesive layer ( 13 ) has a transparent area such that the hob plate ( 10 ) is transparent in the area. Hob plate according to one of claims 1-6, characterized in that the adhesive layer ( 13 ) comprises a laminated color carrier sheet. Hob plate according to one of claims 1-7, characterized in that at least one of the first or second glass plate ( 11 . 12 ) comprises a single-layer and / or multi-layered safety glass. Cooking field plate according to one of claims 1-8, further comprising at least one bushing ( 34 ) for supplying a gas through the cooking plate ( 10 ). Hob plate according to claim 9, characterized in that the adhesive layer ( 13 ) an intransparent printed and / or a colored area ( 35 - 37 ) to carry out ( 34 ) around. Hob plate according to one of claims 1-10, characterized in that the adhesive layer ( 13 ) at least one intermediate layer ( 46 ) comprising an elastic intermediate layer, a heat insulating intermediate layer, an electrically insulating intermediate layer and / or an infrared reflecting intermediate layer. Hob ( 70 ) comprising a cooktop panel ( 60 ) according to any one of claims 1-11; at least one heating element, in particular a gas burner ( 67 ) on or on the hob plate ( 60 ), wherein the adhesive layer ( 63 ) an at least partially printed and / or colored carrier layer ( 65 ) having. Method for producing a cooktop panel ( 10 ), in which a first and a second transparent glass plate ( 11 . 12 ) with the aid of an at least partially colored adhesive layer ( 13 ) together to form a laminated glass plate ( 1 ,) are glued. Method for producing an induction hob ( 180 ), in which a first and a second transparent glass plate ( 81 . 82 ) with the aid of an at least partially colored adhesive layer ( 83 ) together to form a laminated glass plate ( 80 ), and a heating element, in particular a gas burner ( 181 ), on or on the hob plate ( 80 ) is arranged. Use of a hob plate ( 10 ) according to one of claims 1-11 in a gas hob ( 70 ).

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