DE102017005512A1 - Plate-like composite element - Google Patents

Abstract

The invention relates to a plate-like composite element consisting of a plate-like carrier material (1), in particular a wood-based panel, with a top (2), a bottom (3) and the sides (2, 3) connecting edges (4) and one on at least one Surface of the carrier material (1) firmly applied cover layer (5) of a multilayer high-pressure laminate (HPL), wherein the cover layer (5) at least in a flat transparency region (6) is completely transparent or translucent. This is particularly interesting in that in the transparency region (6) on the surface of the substrate (1) or embedded in the substrate (1) a light source (7) for visible light is arranged, whose light penetrates the cover layer (5) locally.

Description

The invention relates to a plate-like composite element having the features of the preamble of claim 1.

A plate-like composite element of the type in question is from the EP 0 249 583 B1 known. It consists of a plate-like carrier material having an upper side, a lower side and edges connecting the sides and a cover layer firmly applied to at least one surface of the carrier material, in particular on the upper side and an edge. The support material is in particular a wood-based panel, for example a chipboard, a fiberboard, an MDF board or an HDF board. The cover layer is a multilayer high-pressure laminate (HPL). A high-pressure laminate plate is a multi-layered plate regularly provided with a decorative surface, in which a surface protective layer having a decorative layer and a multi-layered support layer and other layers is heat-pressed using a thermosetting resin. For HPL plates, for example, refer to the DE 10 2010 003 437 A1 , There are many examples of materials for high pressure laminates mentioned.

In the prior art, from which the invention proceeds ( EP 0 249 583 B1 ), it is special that the high-pressure laminate plate, which forms the top layer, is completely transparent or translucent. The layers of backing layer used in normal high pressure laminates, which are not normally transparent or translucent, are here replaced for aesthetic reasons with layers made of a material that is transparent or translucent. In this case, it is primarily layers of alpha cellulose and rayon fibers that are pressed with thermosetting amino resin. Details are in the EP 0 249 583 B1 so that full reference may be made to this publication.

In general, the design of the high-pressure laminate plate can be completely transparent or translucent, not even over the entire surface, but only in a specific, limited transparency range. Such a limited transparency range can be achieved, for example, by a corresponding printing of the layers which form the various layers of the high-pressure laminate.

The invention is based on the object, the known plate-like composite element with regard to further design options to design and develop.

The above-mentioned object is achieved in a plate-like composite element with the features of the preamble of claim 1 by the features of the characterizing part of claim 1.

In this variant of the invention, a further embodiment of the plate-like composite element is provided in the region of the carrier material. It is provided that in the transparency region on the surface of the carrier material or embedded in the carrier material, a light source for visible light is arranged, whose light penetrates the top layer locally.

The completely transparent or translucent design of the high-pressure laminate plate at least in a flat transparency region is used according to the invention to arrange a light source here. This makes it possible to achieve with appropriate design of the high-pressure laminate plate in their different layers, that when the light source ausgestalteter the surface of the plate-like composite element looks quite normal with uniform decoration. Turning on the light source results in a different visual impression that can be used by a user for informational purposes or for purposes of differing operating instructions or manipulations.

Overall, with the realization of the invention from the classic plate-like composite element, which is known for example as a kitchen worktop, a visually particularly interesting, interactive element that offers unprecedented opportunities for the kitchen builder.

Preferred embodiments and further developments of the plate-like composite element according to the invention are the subject matter of claims 2 to 4.

In a first implementation, the light source is an active light source, and in particular it may be a light-emitting diode or a light-emitting diode group. Here, different optical effects can be realized.

As an alternative to an active light source in the plate-like composite element, it can also be provided that the light source is the end of an optical fiber cable embedded in the carrier material or a corresponding, more complexly shaped optical fiber body, which in turn is fed by an externally arranged light source. This can be advantageous for constructive measures in the arrangement and installation of the plate-like composite element.

The invention further provides interesting design possibilities in that an electronic circuit is arranged in the vicinity of the light source, which has at least one responsive to pressure, contact or approach sensor, which can be influenced by the cover layer. For example, one can arrange in the top of the substrate a flat electronic circuit with light source and pressure-sensitive buttons, which can be actuated by applying pressure to the high-pressure laminate plate, which thereby minimally deformed.

The relevant sensors can also be identical to the light source or the light sources, ie integrate the light source or the light sources.

The teaching of the invention can also be realized in a somewhat modified manner, which is the subject of claim 5. In this case, it is provided that in the transparency region in the carrier material there is provided a recess which is open at the upper side of the carrier material and extends through the carrier material to beneath the cover layer, whereby the cover layer can be backlit through the recess or into the recess of the carrier Bottom of the substrate from a light source is used, through which the cover layer is backlit. In this case, the recess in the substrate is clearance for the passage of visible light for backlighting the high pressure laminate panel or clearance for insertion or insertion of a light source from the underside of the substrate.

Of independent inventive significance is an embodiment of a plate-like composite element of the type in question with a cover layer forming high-pressure laminate (HPL), which has an increased bending compressive strength. The bending compressive strength is compared with the bending compressive strength of a high-pressure laminate plate on a full-surface plate-like support material, in particular a wood-based panel having no recesses, depressions or open spaces on the surface. Such a quality of the cover layer is achieved by a greater thickness of the material of the cover layer and / or by a suitable selection of the materials for the layers of the cover layer.

In the prior art, the layers of the topcoat are primarily alpha-cellulose and rayon fibers that are pressed with thermosetting amino resin. To achieve increased flexural strength, other materials may be envisaged for the topsheet layers, such as transparent or plastic films, as well as nonwovens or webs of synthetic or natural fibers. Also, additives in the form of fibers or other materials in the respective layers of the high-pressure laminate plate can be used here in order to achieve an increased flexural strength.

In connection with the above-described teaching of the invention, namely the backlit from below cover layer of a plate-like composite element, such a modified high-pressure laminate (HPL) is of particular importance, because the inevitable existing open spaces for the light source and possibly other components of This high-pressure laminate (HPL) are perfectly covered, without causing damage to the high-pressure laminate in practical use.

• 1 ein Ausführungsbeispiel eines plattenartigen Verbundelementes in perspektivischer Ansicht,
• 2 das Ausführungsbeispiel aus 1 in einem Schnitt etwa in der Mitte in Höhe des Transparenzbereiches,
• 3 in einer 2 entsprechenden Schnittdarstellung ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Verbundelementes,
• 4 in einer 2 entsprechenden Schnittdarstellung ein drittes Ausführungsbeispiel eines erfindungsgemäßen Verbundelementes.

In the following the invention will be explained in more detail with reference to a drawing illustrating only embodiments. In the drawing shows

• 1 an embodiment of a plate-like composite element in perspective view,
• 2 the embodiment 1 in a section approximately in the middle at the level of the transparency region,
• 3 in a 2 corresponding sectional view of a further embodiment of a composite element according to the invention,
• 4 in a 2 corresponding sectional view of a third embodiment of a composite element according to the invention.

1 lets recognize the basic principle of the plate-like composite element according to the invention. The plate-like composite element, as well as the plate-like composite elements of the prior art ( EP 0 249 583 B1 and DE 10 2010 003 437 A1 ) of a plate-like carrier material 1 with a top 2 , a base 3 and with these pages 2 . 3 connecting edges 4 ,

In the plate-like carrier material 1 it is preferably a wood-based panel for the examples have already been mentioned in the general part of the description. In principle, the plate-like carrier material 1 but also consist of other material, such as insulating material, glass fiber mats or the like .. Also in this respect may be made to the prior art.

On at least one surface of the carrier material 1 , In the illustrated and preferred embodiment on the top 2 and the right edge 4 , is a topcoat 5 firmly applied from a multilayer high-pressure laminate (HPL) in particular glued, possibly also glued under heat and pressed.

As 1 can be seen is the high pressure laminate plate 5 at least in a flat transparency area 6 completely transparent or translucent. As already shown in the general part of the description, one can have such a flat transparency range 6 Achieve that by keeping the layers that cover the top 5 form, imprinted, if necessary, such a transparency range 6 completely transparent or translucent provides. But it is also possible for the high pressure laminate plate 5 Overall, a complete transparency or translucency, at least to a sufficient extent, to realize. It is important that in the normal state, the plate-like composite element on the visible to the user top and the user visible edge presents an attractive decorative surface.

The special feature of the plate-like composite element according to the invention is now that where in the cover layer 5 the transparency area 6 located on the surface of the substrate 1 or embedded in the substrate 1 a light source 7 is arranged for visible light, whose light is the covering layer 5 penetrates locally. In 1 you can see the transparency area 6 , which is shown in dashed lines, and dotted within the transparency region 6 those of the topcoat 5 covered light source 7 for visible light. Is the light source 7 switched off, the surface of the composite element acts uniformly evenly with a uniformly distributed decor. Is the light source 7 on the other hand, the cover layer becomes 5 from the light of the light source 7 backlit, this visible light passes through the surface layer 5 In any case, these are in this transparency area 6 is transparent or translucent, and it results in the desired optical, technical and decorative effect according to the invention.

2 shows a section through the plate-like composite element 1 in the transparency area 6 , One sees under the transparent or translucent cover layer 5 the light source embodied here as an active light source 7 by means of a connecting cable 11 down to the bottom 3 of the carrier material 1 connected to a power supply. This is just one example of the installation of such a connection cable 11 , which of course can be laid out quite differently.

3 shows an alternative to the use of an active light source 7 , Here is the light source 7 the end of a in the carrier material 1 embedded fiber optic cable 8th , It may also be a complex shaped light guide body, for example, of a plastic material. It is essential that the light source 7 as the end of the fiber optic cable 8th here only is passive. The fiber optic cable 8th itself is fed by an externally arranged active light source, for example because of a light emitting diode or a light emitting diode array.

2 shows yet another peculiarity associated with 1 easy to understand. In accordance with a preferred teaching of the invention, it is possible to provide that in the environment of the light source 7 an electronic circuit 9 is arranged, the at least one responsive to pressure, contact or approach sensor 10 that passes through the topcoat 5 can be influenced. You can see in 1 dash-dotted lines indicated as the electronic circuit designed as a circuit board 9 , which you then also on average in 2 sees. Embedded on the circuit board or in the circuit board are two sensors 10 which respond to pressure in the embodiment shown here. The high-pressure laminate board covering the top layer 5 forms is slightly deformable when an operator vigorously from the top of the topcoat 5 suppressed. Does this happen in the area of a sensor 10 so you can use it to make the electronic circuit 9 serve. The light source 7 For example, corresponds to an indication whether a function is turned on or not. But also the sensors 10 In turn, they may themselves contain light sources, such as dim light sources, which merely control the location of these sensors 10 through the cover layer 5 make it through.

The further example shown in the general part of the description of a plate-like composite element according to the invention is shown in FIG 4 shown schematically in section. Here it is envisaged that in the transparency area 6 in the carrier material 1 one at the top 2 of the carrier material 1 open recess twelve is provided, extending through the substrate 1 extends through, wherein through the recess twelve through the top layer 5 is backlit or in the recess twelve from the bottom 3 of the carrier material 1 from a light source 7 can be used, through which the cover layer 5 is backlit.

4 shows the recess twelve , which can initially be used only as a free space to the top layer 5 to backlight from below. As a variant to 4 is shown in the recess twelve also an active light source 7 can use, in the illustrated and preferred embodiment of a corresponding holder 13 is arranged, if necessary, as such, in turn, includes an electronic circuit. Again, there is a connection line 11 to see, with the example of a connection to a supply network can be done.

Finally, the independent teaching of the invention is pointed out, which goes to the fact that the cover layer 5 forming high-pressure laminate (HPL), apart from any intended printing or other colorations, is made overall transparent or translucent and that the thickness and / or the materials of the layers of the cover layer 5 are chosen so that the topcoat 5 has an increased bending compressive strength. For this purpose, a detailed explanation has been given in the general part of the description to which reference may be made at this point.

Examples of reinforcements of the high pressure laminate plate:

Admixtures of fibers, for example glass fiber or carbon fiber, additional use of fabrics of textile, glass fiber, plastic fiber in different layers of the high-pressure laminate,
additional use of nonwovens, for example of textile fibers, glass fibers, synthetic fibers, but also possibly carbon fibers, in the different layers of the high-pressure laminate,
Use of flexibilizing additives in the sizing system, with which the different layers of the high-pressure laminate are pressed,
Use of stabilizing additives for the glue system,
Use of alternative glue systems with, for example, a higher proportion of epoxy resin.

LIST OF REFERENCE NUMBERS

1

support material

2

top

3

bottom

4

edge

5

topcoat

6

transparency range

7

light source

8th

Optical fiber cable

9

electronic switch

10

sensor

11

connecting cable

12

recess

13

bracket

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 patent literature

• EP 0249583 B1 [0002, 0003, 0020]
• DE 102010003437 A1 [0002, 0020]

Claims (6)

A plate-like composite element consisting of a plate-like carrier material (1), in particular a wooden material plate, with a top (2), a bottom (3) and the sides (2, 3) connecting edges (4) and one on at least one surface of the carrier material (1 ) firmly applied cover layer (5) of a multilayer high-pressure laminate (HPL), wherein the cover layer (5) at least in a flat transparency region (6) is completely transparent or translucent, characterized in that in the transparency region (6) on the surface of the carrier material (1) or embedded in the carrier material (1) a light source (7) for visible light is arranged, whose light penetrates the covering layer (5) locally. Composite element after Claim 1 , characterized in that the light source (7) is an active light source, in particular a light emitting diode or a group of light emitting diodes. Composite element after Claim 1 , characterized in that the light source (7) is the end of an embedded in the carrier material (1) optical fiber cable (8) or light guide body, which in turn can be fed by an externally arranged light source. Composite element according to one of Claims 1 to 3 , characterized in that in the vicinity of the light source (7) an electronic circuit (9) is arranged, which has at least one responsive to pressure, contact or approach sensor (10) which can be influenced by the cover layer (5). A plate-like composite element consisting of a plate-like carrier material (1), in particular a wooden material plate, with a top (2), a bottom (3) and the sides (2, 3) connecting edges (4) and one on at least one surface of the carrier material (1 ) firmly applied cover layer (5) of a multilayer high-pressure laminate (HPL), wherein the cover layer (5) at least in a flat transparency region (6) is completely transparent or translucent, characterized in that in the transparency region (6) in the carrier material (1) an opening (12) which is open at the upper side (2) of the carrier material (1) and is closed by the cover layer (5), extends through the carrier material (1), through the recess (12) the cover layer (5) is backlit or in the recess (12) from the underside (3) of the carrier material (1) of a light source (7) is inserted, through which the decks (5) is backlit. A plate-like composite element consisting of a plate-like carrier material (1), in particular a wooden material plate, with a top (2), a bottom (3) and the sides (2, 3) connecting edges (4) and one on at least one surface of the carrier material (1 ) tightly applied cover layer (5) of a multilayer high-pressure laminate (HPL), wherein the cover layer (5) at least in a flat transparency region (6) is completely transparent or translucent, in particular according to one of Claims 1 to 5 , characterized in that the covering layer (5) forming high-pressure laminate plate (HPL), except for any intended printing or other colorations, is made overall transparent or translucent and that the thickness and / or the materials of the layers of the cover layer (5 ) are selected so that the cover layer (5) has an increased flexural strength.

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