EP2191690B1 - Insert for a hob - Google Patents

Description

The invention relates to an insert for a hob, which is formed of a translucent material.

From the DE 87 01 926 U1 is a device for control technical operation of the heating elements of cooker hobs known. The stove comprises a cooking surface with a quadrangular glass ceramic pane, as well as a display field strip, which is formed separately from the glass ceramic pane and adjoins the glass ceramic pane at its front edge. The display panel strip is transparent and can be arranged under this light emitting diodes. The glass ceramic pane and the display panel strip are surrounded by a frame, wherein the glass ceramic pane and the display zone strip can be sealed relative to the frame and against each other. The display panel strip thus extends beyond the dimensions of the glass ceramic pane. The arrangement is therefore very space-intensive.

Furthermore, from the DE 103 12 449 A1 a stove with a stove top known, which has a Herdplattenabdeckplatte glass ceramic. In addition, the stove plate comprises an insert plate, which is arranged within the hearth cover plate and is thus surrounded over its entire edge thereof. The insert plate is preferably also a glass ceramic plate. However, it may be specified with colorants, dyeing layers, coloring pigments or dyeing coatings. A gap formed between the insert plate and the hearth cover plate is covered with a decorative frame. This allows only a relatively insufficient attachment and positioning of the components to each other, and very limited display options.

In addition, from the DE 196 12 621 C2 a hob with a cooking surface made of glass or glass ceramic known. In the cooking surface at least one recessed functional zone is arranged, which may be made of glass or glass ceramic. This functional element is mounted by means of a temperature-resistant, tight and permanently elastic connection in a recess of the hob flush with this. The Compound may be formed as an elastic or rigid connection and, for example, be a silicone rubber. The functional zone can thus also be glued into the cooking surface. Below the functional zone display elements may be arranged, whereby the functional zone then serves as a display surface and is preferably formed of a transparent, non-colored glass or plastic. The arrangement of the functional zone within the cooking surface, this functional zone occupies a relatively large amount of space and therefore minimizes the possible space for other components or zones of the hob. In addition, the display capability of this functional element or the functional zone with respect to different colors of the display is severely limited.

Glass ceramic hobs usually have red displays, since commercially available glass ceramics only let through light in the red spectral range. Light in the yellow spectral range is distorted to appear as orange to the viewer. All other colors are strongly attenuated or even completely absorbed, this is especially the case in the blue spectral range as well as for white light.

From the EP 1 505 354 A1 and the EP 1 465 460 A1 Cooking plates are known, which are formed of a permeable to light in the blue spectral material.

In addition, from the post-published WO 2008/042805 A a display device for a cooking appliance, in which specific information is displayed. Again, blue light can be displayed.

It is an object of the present invention to provide an inserter which allows a more flexible display of information. This object is achieved by an insert, which has the features of claim 1.

An inventive insert for a hob is formed of a translucent material. The insert is permeable to light in the blue spectral range. By virtue of such a configuration, an improved and more flexible color representation of displays and the like can be achieved compared with a deposit formed only of glass-ceramic inserts.

The insert has on its rear side, at least in regions, a black support that is transparent to light in the blue spectral range. By means of such a configuration, an adjacent positioning of the insert to a glass ceramic in the hob can be made possible, and the overall visual impression conveyed as if the insert and the glass ceramic were one and the same material. In addition, such backside attachment of a black overlay minimizes translucency through the insert from the top and obscures underlying components, particularly the electronics and at least one light source. Under a concealment of the light source is understood that the emitted light passes through the insert in the activated state, that the light source as such with their shape, etc., but not or almost impossible to recognize in particular in the deactivated state. In addition, by the rear attachment of the black support their damage can be prevented by scratching or the like.

In particular, the insert is formed of a material different from the glass ceramic.

Preferably, the insert made of glass, in particular gray glass is formed. However, it can also be another material, such as plastic, be provided, it being essential that this is translucent for light in the blue spectral range. An integrated into the cooking surface display and / or operating area can thus be improved in terms of color representation and thus on the easier recognition for a user. This can be achieved by the depositor and the components arranged thereunder, in particular the electronics and light sources.

The support may be formed as a foil or as printing. Preferably, at least one symbol and / or a scale is applied to the back of the insert. This application can be realized as a foil or as a print.

Preferably, at least one centering element is formed on the rear side of the insert, which is designed for relative positioning to a further component of the hob, in particular a display unit and / or a light source. This allows a very precise positioning between the components which ensures a particularly precise backlighting of specific areas of the insert. A blurred backlighting and resulting blurred perceived image or fuzzy visual display can thereby be prevented.

Preferably, the insert is trapezoidal. In particular, the insert is designed for marginal use in a hob.

Fig. 1

eine Draufsicht auf ein erfindungsgemäßes Kochfeld;

Fig 2

eine Schnittdarstellung des Kochfelds gemäß Fig. 1;

Fig. 3

eine vergrößerte Darstellung einer Draufsicht des Einlegers des Kochfelds gemäß Fig .1; und

Fig. 4

eine Seitenansicht des Einlegers gemäß Fig. 3.

An embodiment of the invention will be explained in more detail with reference to schematic drawings. Show it:

Fig. 1

a plan view of an inventive hob;

Fig. 2

a sectional view of the hob according to Fig. 1 ;

Fig. 3

an enlarged view of a top view of the insert of the hob according to Fig .1 ; and

Fig. 4

a side view of the insert according to Fig. 3 ,

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In Fig. 1 is a cooking field 1 is shown in a plan view, which has a cooking surface 2 of glass ceramic 3. On this glass ceramic 3, a preparation vessel, such as a pot or a pan or the like, can be positioned or placed. The cooking surface 2 comprises at least one cooking zone not shown in detail, which has a heating device.

At the front edge 7 of the glass ceramic 3 and thus also of the hob 1, an edge-side cutout 4 is formed centrally in the glass ceramic 3 in the x-direction. Im in Fig. 1 shown assembled state of the hob 1, a depositor 5 is arranged in this cutout 4, which is formed from a different material compared to the glass ceramic 3. In particular, this diversity of the material is designed with regard to the different optical properties of the glass ceramic 3 and the insert 5. The cutout 4 and the insert 5 are trapezoidal in the embodiment, wherein a front edge 6 of the insert 5 is arranged flush with the front edge 7 of the glass ceramic 3. The insert 5 thus does not extend beyond the front edge 7 of the glass ceramic, whereby a space-saving design of the hob 1 is achieved. However, by the insert 5 is positioned as far as possible outside and thus in the peripheral cutout 4, If the other cooking surface 2 is not limited in its dimensions and the functionality in particular with regard to the dimensioning and arrangement of the cooking zones, is thus not affected by the position of the insert 5.

The insert 5 is formed in the embodiment of gray glass and permeable, inter alia, for light in the blue spectral range, in particular translucent. In addition, the insert 5 is also permeable to light in the red and yellow spectral range. With this configuration, the display of different colors can be made possible, whereby a variety of settings, various operations and various displays can be specified in color. By means of this distinguishing feature, the user of the hob 1 can thus also be made more quickly and more distinguishably able to display a wide variety of information. Since the material of the glass ceramic 3 absorbs light of the blue spectral range, the functionality of the hob and in particular of the display and / or operating region of the hob 1 can be substantially improved by the insert 5. By the insert 5 of the display and / or operating range of the hob 1 is specified. For this purpose, one or more light sources, in particular light-emitting diodes, are arranged below the insert 5. Likewise, a board, which has the control electronics, is arranged below the insert 5.

The insert 5 is spaced and arranged without contact to the glass ceramic 3 in the cutout 4. A formed between the insert 5 and the glass ceramic 3 gap 8 has a width b1, which is about 4 mm in the embodiment.

The insert 5 is connected by two different adhesives with the glass ceramic 3 in the cutout 4. On the one hand, provision is made for fastening to be provided by means of a UV adhesive which is only selectively formed, on the other hand, in addition, a silicone adhesive 10 being provided. This is formed strand-like and extends over the entire length of the cutout 4 between the glass ceramic 3 and the insert 5. The UV adhesive is realized only by the adhesive dots 9a, 9b, 9c and 9d.

In addition, this UV adhesive is also provided for attachment of a decorative frame 12 with the glass ceramic 3 and the insert 5 on the circumferential side, in this regard Adhesive dots 9e, 9f, 9g, 9h, 9i, 9j, 9k, 9l and 9m are marked. Both the location of these adhesive dots 9e to 9m and the number of adhesive dots on each of the peripheral sides of the perimeter are merely exemplary. Preferably, a plurality of such adhesive dots are formed on each of the peripheral sides on the circumference.

In addition to the circumferentially formed decorative frame 12 and the gap 8 in the cutout 4 by a decorative frame 13 when viewed from above and thus in the plan view according to Fig. 1 covered. Preferably, the decorative frame 12 and the decorative frame 13 is integrally formed, and form the entire decorative frame eleventh

The decorative frame 13 has a width b2, which is 15 mm in the embodiment.

In addition to the decorative frame 11, the hob 1 also comprises a mounting frame 14 (FIG. Fig. 2 ) which is connected to the decorative frame 11 in particular with the peripheral decorative frame 12. Between the decorative frame 11 and the mounting frame 14, the glass ceramic 3 and the insert 5 is arranged or clamped and held positionally stable.

On the back of the insert 5 two centering elements 15 and 16 are arranged in the embodiment, which extend like a pin down. The centering elements 15 and 16 engage in the assembled state of the hob 1 in recesses of the underlying board of the control electronics, whereby an exact positioning between the insert 5 and the display unit and / or the light sources is given. As a result, the light emitted by the light sources and the display unit light can pass in a very precise manner at the desired specific positions through the insert 5 and a position-specific backlighting can be ensured.

In Fig. 2 is a sectional view along the section line II-II of the hob 1 according to Fig. 1 shown. The same as the centering element 16 downwardly tapered centering element 15 is shown. In the illustration according to Fig. 2 is the clarity serving the decorative frame 13 is not shown on the gap 8. As in the presentation according to Fig. 2 can be seen, the insert 5 has the same thickness (expansion in the z-direction) as the glass ceramic 3.

In Fig. 3 is a plan view of the insert 5 shown. On the front of a scale 22 and 23, 24, 25 and 26 areas to recognize symbols can be seen. Both the scale 22 and the areas 23 to 26 are on an in Fig. 4 shown rear side 18 of the insert 5 arranged, in particular imprinted. The scale 22 and the areas 23 to 26 are printed from a white color, which when viewed from the top by the configuration of the insert 5 as gray glass no longer pure white, but appear in a gray tone. In addition, the scale 22 and the areas 23 to 26, the transmission of the light in the blue spectral range is not affected.

In Fig. 4 is a side view of the insert 5 as shown in FIG Fig. 3 shown. On the back 18, in addition to the printing with the scale 22 and the areas 23 to 26 on the remaining surface, a black support 21 is applied, which can be realized as a film or in particular as printing. This overlay 21 does not affect the transmission of the light of the blue spectral range.

The centering element 15 has a splice 19, with the attachment to corresponding components of the hob 1 is made possible. In addition, the tip 20 of the centering element 15 engages in the mentioned recess in the arranged under the insert 5 board. In an analogous manner, the centering element 16 is formed.

For the production of the hob 1 as shown in FIG Fig. 1 First, the decorative frame 12, 13 is turned over and the top is thus turned down on a mounting device. The already provided with the cutout 4 glass ceramic 3 is then also turned around and with their in Fig. 1 shown top turned down in this decorative frame 12, 13 used. In a corresponding manner, the introduction of the insert 5 in the decorative frame 12, 13 method, so that here then the top or front 17 is arranged facing downward. In a subsequent manufacturing step, the UV adhesive is then introduced selectively, as shown by way of example at the corresponding adhesive points 9a to 9m. In particular, more than one per-page perimeter page will be used Realized glue dots. After curing of the UV adhesive, the silicone adhesive 10 is then introduced as a strand in the gap 8. The printing of the insert 5 on the back 18 with the areas 23 to 26, the scale 22 and the black support 21 is carried out before inserting the insert 5 in the inverted decorative frame 12, 13. By means of the UV adhesive and the silicone adhesive 10, the insert 5 is connected to the decorative frame 12, 13 and the glass ceramic 3.

Subsequently, the mounting frame 14 is then mounted. Further or preceding process steps are of secondary importance to the invention and are not mentioned here in detail since they represent essentially known process steps.

In addition, it should be mentioned that the connection between the insert 5 and the glass ceramic 3 can also be realized otherwise. The adhesive connection can therefore also be replaced by another type of connection or optionally supplemented in addition.

Claims (8)

1. Insert for a hob (1) which is embodied from a light-permeable material and is permeable to light in the blue spectral range, which insert (5), on its rear side (18), at least in some areas, has a black coating (21) permeable to light in the blue spectral range.
2. Insert according to claim 1, characterised in that it is embodied from glass permeable to light in the blue spectral range, especially gray glass.
3. Insert according to claim 1 or 2, characterised in that the coating (21) is a film.
4. Insert according to claim 1 or 2, characterised in that the coating (21) is an imprint.
5. Insert according to one of the previous claims, characterised in that at least one symbol (23 through 26) and/or a scale (22) is applied to the rear side (18).
6. Insert according to one of the previous claims, characterised in that at least one centring element (15, 16) is embodied on the rear side (18) which is embodied for positioning relative to a further component of the hob, especially a display unit and/or a light source.
7. Insert according to one of the previous claims, characterised in that it is embodied in the shape of a trapezoid.
8. Insert according to one of the previous claims, characterised in that it is embodied to be inserted on the edge of a hob (1).

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