DE102006062715A1 - Composite tiles for decorating kitchen-, laboratory- and restaurant furniture, comprise single component arranged in a cutout of the tiles, and a media receiving core board from core material with upper side, lower side and edge sides - Google Patents

Abstract

The composite tiles for decorating kitchen-, laboratory- and restaurant furniture, comprise a single component arranged in a cutout of the composite tiles, and a media-receiving core board from core material with upper side (5), lower side and edge sides. The edges form a passage between the edge sides and the upper side and/or the lower side. The upper side exhibits a media-dense cover (11) from media-dense material, which forms non-porous connection with the backside of the cover and fills-up a relieving groove (22) interlocked to a support structure, in the walls of the cutout. The composite tiles for decorating kitchen-, laboratory- and restaurant furniture, comprise a single component arranged in a cutout of the composite tiles, and a media-receiving core board from core material with upper side (5), lower side and edge sides. The edges form a passage between the edge sides and the upper side and/or the lower side. The upper side exhibits a media-dense cover (11) from media-dense material, which forms non-porous connection with the backside of the cover and fills-up a relieving groove (22) interlocked to a support structure, in the walls of the cutout. The media-endangered partial areas of opened walls of the cutout exhibit a media-dense edge cover, which is arranged between the media-dense cover and the media receiving core material. The core material exhibits lamellae-type pores, supporting structure with cavities, honeycomb structure, press board, press straw board, press hemp board, press-wood powder board and light metal structure. The cover exhibits a material layer of a thickness of 0.3-1 mm and a plastic filled with ceramic particle or mineral particle having thickness of 1-16 mm. The supporting structure exhibits an individual medium-dense material, which is penetrated as sealing compound into pores or cavities of the walls of core material by gravity force, pressure and/or capillary forces. The relieving groove is positively fixed into the walls of the core material. The support structure exhibits different depths or different lengths in the core material, groove- and spring joint with the media dense material in the cross-section, and first- and second media dense material in the core material. The first dense material is penetrated into the pores of the walls of the support structure by gravity force, pressure and/or capillary forces. The second medium dense material exhibits a fabricated sealing profile band, which is pressed into the support structure and is integrally connected to the first dense material. The pressed sealing profile band is fixed in the core material of the core board in the recess via screwing elements. The outer side of the medium-dense material and the remaining wall of the core material exhibit a coplanar wall. The medium-dense material exhibits a profile whose outer contour protrudes over the cover of the board and forms a profile section within the cutout. The single component is arranged on the profile section of the medium-dense material. The media-dense cover covers frame areas of the single component. The profile of the media dense material exhibits a spring extension, which protrudes into the core material. The spring extension and the profile section are arranged oppositely each other in the cross section of the medium-dense material. The profile section is supported by supporting element, which is integrally connected to the media dense material of the section and to the core material.

Description

The The invention relates to a composite panel with edge protection, wherein the Composite panel a media-absorbent core panel of core material having a top, a bottom and edge sides. The Edges form the transition between margins and top or bottom. A front edge side and the top have at least one media-tight cover on, which form an edge protection of the front upper edge, while the rear edge side and / or the underside of the composite panel only have an at least moisture-sensitive cover. front sides and / or exposed edge sides of the composite panel have none Such cover, so that the exposed core material of a Media exposure is exposed.

such Composite panels are used as countertops in kitchens, bathrooms or laboratories. You can but also e.g. used as decorative panels or linings for guest rooms become. Often For example, the core plate is made of a wood material wood chips stuck together Such core plates are also called pressboard boards. The core material of such core plates is thus easy to work and in a dry state of great strength. The adaptation a composite panel to the local However, circumstances requires generating cut surfaces with Cutting through both the core material and the cover.

Such core material exposed by cuts or end faces may be swelled or decomposed by the ingress of aggressive media such as water, chemicals or gases. To avoid this is according to the document DE-GM 88 16 671 formed a plastic block to the core plate and the cover and solidified with mutual bonding with the core plate and the cover. A perfect edge protection is not secured, especially since a media-tight connection between the cover and plastic block and between plastic block and core material is not guaranteed. In particular, this protective measure is not sufficient if such a composite panel has to be severed to adapt to particular local conditions and then joined together with further identically designed worktops such as in the lining of corners, in the molding of gooseneck profiles or other complex toothing between two composite panels.

In such cases results even with a high-precision cut the joining the worktops always a butt joint of more or less small width, not by known simple plastic blocks can be secured against the ingress of media. By penetration of media and swelling or decomposition of the core material also the superficial Flatness of the composite panel in the area of the butt joint and / or the mechanical Strength lost, which favors penetration of other media and a progressive destruction of the nuclear material.

It is known to install a sealing tape between the region of the butt joint meeting each other to avoid such disadvantages. However, the optical continuity of the entire appearance is interrupted and in many cases undesirable. From the publication DE 196 45 253 C1 worktops are known which no longer have core material in the region of the butt joint, but rather are connected to one another by a spring / splined plastic block. For this purpose, the plastic block is glued on site by removing the core material to the cover in the worktops to be joined. For this purpose, the plastic block consists of a section of a bar profile.

requirement for the Use of such a solution However, it is that the core material below the cover plate in the field of cuts in their entirety by a liquid-impermeable plastic block is replaced, which adheres liquid impermeable to the underside of the cover plate becomes. However, such an approach can be disadvantageous to a Partial chipping the cover lead, especially the preparation or removing the core material and attaching the bar profile only carried out on site can be. Thus this solution is not only consuming, but also with significant disadvantages connected to the assembly, as the exposed cover without protective Core plate material extremely shock-sensitive is and at the butt joints before or when attaching the plastic block from a section a bar profile and when joining the butt joint of two to be joined Worktops can be injured.

This danger is also due 16 with detailed figures 16a to 16d clarified. In addition shows 16a a plan view of a butt joint 53 of two countertops 54 and 55 , where with the dashed lines the interlocking bar profiles 60 and 61 below the cover 11 the worktops 54 and 55 be marked.

16b shows the preparation of attaching the bar profiles 60 and 61 as they are in 16a to be shown. This will be the core material 4 the core plate 3 in the area of bar profiles 60 and 61 except for the cover 11 removed so that the impact temp sensitive cover 11 in the area 62 exposed unprotected and exposed to the risk of damage at the installation site. Only after gluing the in 16c shown bar profiles 60 with a spring and 61 with a precisely fitting groove get the exposed areas 62 the cover 11 but only partial support, so the worktops 54 and 55 in 16d abutting each other over the bar profiles 60 and 61 in the area of the butt joint 53 can be joined together. In this preparation, the exposed areas 62 the shock-sensitive cover in the 16b and 16c even when joining to 16d particularly endangered, so disadvantageous the risk that new worktops 54 and 55 for producing a perfect butt joint 53 are to be used again. In addition, this edge protection is extremely unsuitable to be prepared and not introduced on site, since the worktop with the in 16c shown still completely exposed areas 62 the shock-sensitive cover 11 despite already inserted bar profile 60 an additional risk of damage during transport to the place of use is suspended.

One media-resistant edge protection, which not only rejects media, but is also montagefest and locally when attaching composite panels in restaurants, laboratories and / or apartments the edges of the composite panel also protects mechanically with the known from the above document worktop not reachable.

From the publication DE 198 39 167 C2 is a wood-based worktop with Abstellstegen known, the Abstellstege are flush with the plate surface. For this purpose, the Abstellstege on the underside of the cover are supported by a plastic compound, which partially replaces the core material below the Abstellstege. The introduction of Abstellstegen in the cover, however, contains no indication to realize an edge protection for composite panels.

From the publication DE 296 00 998 U1 is a worktop for a kitchen area known in the longitudinal direction a continuous gutter made of plastic is embedded. 17 shows with the detail figures 17a to 17d the introduction of a known gutter 57 in a worktop 54 for the kitchen area. The gutter known from the above utility model 57 which extends longitudinally into the cover 11 is inserted, runs parallel to the front upper edge 10 within the core material 4 the core plate 3 , in the 17a is shown.

This will, as in 17b shown before even applying a cover in the top 5 the core plate 3 introduced a longitudinal groove, which is then filled with a plastic compound. Then the plastic compound is leveled, and on the leveled plastic compound and the top 5 the core plate 3 can now, as in 17c shown the cover 11 be applied from a media-tight material while on the back 6 the usual moisture-sensitive cover 13 is applied. The front edge side 9 can either with the application of the cover 11 get a profiled cover or it can then cover the front edge side 9 be glued. In conclusion, how 17d shows in the cover 11 and in the media-tight material 19 made of plastic a gutter 57 parallel to the front upper edge 10 worked in the longitudinal direction.

a Edge protection in similar Way, as the above utility model provides, in the edge area from front sides or exposed edge sides of a composite panel and in particular an edge already in the core material to mill, afterwards to refill with plastic and to provide a cover is not feasible, especially required cut surfaces, to equip their marginal edges with a media-tight edge protection are dependent from the local Variables given variable and not as a gutter preparatory can be produced.

Edgebanding requires not only end faces and edge sides of composite panels, but also cut-outs that are to be incorporated into the composite panels for attaching built-in components such as drainage surfaces, sinks, hotplates and much more. Such edge protection is from the document DE 94 15 679 U1 known, in which a plastic block is adhered to the edge sides of a cutout with a profile having a lug for receiving, for example, a sink.

18 shows with the detail figures 18a and 18b a known section 39 a worktop 54 in 18a , The overlay structure known from the above utility model 56 for a sink 58 in the clipping 39 a worktop 54 shows 18b , In this edition structure 56 is on the edge side 7 the core plate 3 a Auflagerand 63 molded from cast resin. This support sand 63 has a circumferential fold 64 on which an elastic seal 65 is arranged, in turn, the edge of the sink 58 , which is indicated here by a dot-dash line, absorbs. The Auflagerand 63 made of cast resin initially also provides an edge protection for the edge side 7 of the clipping 39 but the shelf is hanging 63 together with the sink 69 free in the room, so there is a risk that the Gießharzfuge 66 between the back of the cover 11 and the deposit 63 on rips and a media-tight edge protection is no longer given.

task The invention is an effective edge protection for cutting edges, Profile edges, end edges and / or cut-out edges of composite panels to provide that is resilient and the shock-sensitive cover of a Composite panel effectively protects against mounting as well as the media-absorbing Nuclear material seals against the ingress of media. Further is It is an object of the invention, the disadvantages in the above-mentioned state overcome the technique.

These The object is achieved with the subject matter of the independent claims. advantageous Further developments of the invention will become apparent from the dependent claims.

According to the invention is a Composite panel with edge protection and a method of making the same created. The composite panel has a media-receiving core panel made of core material with a top, a bottom and edge sides. The edges form the transition between margins and top or bottom. A front Edge side and the top have a media-tight cover and form a front upper edge, with a rear edge side and / or the underside of the composite panel an at least moisture-sensitive Cover have. The front sides and / or exposed edge sides The composite panel has no cover, so the exposed Core material is exposed to a media load. The media-endangered Parts of the exposed edge sides, the front sides, the rear Edge side and / or the bottom have a media-tight edge protection with a padded grooved Recess on that between the media-tight cover and the media-receiving core material is arranged and at least one having media-tight material. The media-tight material forms in the recess a cohesive non-porous connection with the back of the Cover and with the surfaces the recess of nuclear material.

These Composite panel has the advantage that its exposed edge sides, their faces, their back margins and / or their bottoms depending on local Requirement have a media-tight edge protection, the same time also a mechanical protection for the cover offers, especially as filled with media-tight material recess a cohesive non-porous connection with the back the cover forms. Another advantage is that the surfaces the groove-shaped filled with media-dense material recess of the core material arise and are therefore easy to work with. Furthermore, the Nuclear material often lamellar or fibrous or honeycomb Structures on, the cavities and have pores into which the media-dense material via capillary forces and / or penetrates under pressure and a mechanical and media-tight gearing ensures with the nuclear material. The media-tight material in the recess protects So not only the core material from the penetration of aggressive Media, but protects also the shock-sensitive thin cover from damage during the localized assembly of the composite panel.

One Another advantage is that filled with media-dense material groove-shaped recess each follow any edge profile and thus any cutting surface can or can be adjusted so that even gooseneck-shaped abutment surfaces, with which composite panels abut each other, with such edge protection can be equipped. It is also possible complex cutouts in a composite panel and their cut-out edges to be provided to the cover with the edge protection according to the invention. After all it is beneficial to use the edge protection in addition to a smooth surface for butt joints To give profile to internals in cut-outs of the composite panel to support.

The Core material can have different structures. Preferably The core material has lamellar pores that are particularly good with the media-dense material can be interlocked. Also, the core material can a support structure with cavities have, for edge protection, the media-dense material in the area the recess such cavities with refills. As a support structure honeycomb structures have proven themselves, the cut honeycomb of the core material through the edge protection filled can and can thus an intensive anchoring between nuclear material and media-dense Material of the edge protection can be achieved. For lamellas or fibrous pores in the core material is preferably this a pressboard, a press straw plate, a Presshanfplatte and / or a Pressflachsplatte made. Have such plates a low specific weight, so the total weight of the Composite plate is essentially determined by the weight of the cover. To make even lighter core plates, these are with a Structure, as already mentioned above, constructed, wherein these structures are made of e.g. Cardboard, plastics or fiber-reinforced plastics could be and / or produced directly from light metals.

A preferred embodiment of the composite panel comprises a core plate having on its surfaces except for their end faces a media-tight cover. At least one of the forehead, However, abutting or cutting surfaces of the composite plate has a recess abutting the cover, which is filled with media-tight material. The so equipped end, shock or cut surfaces of the composite panel can now be matched with a matching end, collision or cutting surface of a second composite panel brought together and form a butt joint, which is both media-tight and visually a smooth transition of the covers of the two together imparting composite panels. This cover may preferably have a filled with ceramic particles of plastic on which a decor sheet is applied as a decor. This decorative film can also be photographically provided with corresponding patterns and images. Preferably, worktops are produced from such composite panels as are required for kitchen, laboratory and restaurant furniture or equipment. Furthermore, such composite panels are suitable for use in trade fair construction, interior design and, for example, in vehicle construction, shipbuilding and aircraft construction.

A another embodiment The composite panel provides that the recess is a single media-tight Material having as potting compound in pores and cavities of the Edge sides of core material penetrated by means of pressure and / or capillary forces and anchored in the core material cohesively. such a media-tight material can casting resins be as potting compound under pressure or by capillary forces in the cavities of the Core material einrin conditions and at the same time a media density and non-porous connection to the back to create the cover. This is the recess directly on the back the cover is inserted so that the recess allows that the potting compound with the back of the cover and with the surfaces from core material of the recess connects.

Around the strength and reliability to increase the edge protection, the recess in the core material of the composite plate may be different Depths and different lengths have and with the media-dense material in cross section a positive Form groove / spring connection. This is a profiled recess below the back the recess is introduced into the core material at different depths and filled with the potting compound. In addition to the pure mechanical anchoring of the edge protection in the core material is added with the tongue and groove joint a higher mechanical resistance to shock loads achieved during assembly of the composite panel.

Next The possibility only a single media-tight material in the recess as encapsulant, it is possible in an advantageous manner, first a to introduce the first media-tight material, with which the pores in the Nuclear material and also the back the cover, as far as it is rough and uneven, is filled, and even before this first material hardens, a second material can in the form of a prefabricated sealing profile strip with the first Material cohesive be connected and form an edge cover, both mechanically has a high strength and preferably also a high elasticity and still media-tight the edges of the worktop protects. Thus, points the recess in the core material of the composite panel a first and a second media-tight material, wherein the first media density Material in pores of the surfaces penetrated from core material of the recess by means of pressure or capillary forces and the second media-tight material is a prefabricated weather strip having pressed into the recess and with the first media-tight Material cohesive connected is.

Around ensure that the profiled sealing tape has an intensive non-porous connection with the first media-tight material, the pressed-in sealing profile strip via screw elements in the Core material of the core plate to be fixed in the recess. To Harden of the first media-tight material may then be the top of the sealing tape with screw heads be processed so far that a coplanar surface of core material, Cover, media-tight materials and the hulls of the screw elements is created.

Preferably are two composite panels on their faces with a miter angle and equipped with media-tight material filled recesses and arranged abutting with these end faces. It can additionally a thinner one Film and / or a double-sided adhesive film a cohesive connection between the media-tight materials of the edge protection of the two Create composite panels. It can now also more complex cut surfaces like that of a gooseneck-shaped Miter profiles equipped with an edge protection according to the invention to protect against aggressive media for the nuclear material to create the composite panel. In addition to simple end faces with miter angle and more complex faces with gooseneck miter profile it is also possible, one first composite panel with its front side and a second composite panel with a longitudinal side section hitting each other to arrange and the abutting surfaces with the edge protection media-dense material in a recess to provide.

The edge protection of composite panels according to the invention has the advantage that the functions of sealing against penetrating media and connecting faces of composite panels are separated from each other, so that the core material of a composite panel is still available for the function of connecting composite panels. Therefore, a preferred embodiment of composite panels on a first cut surface of a first composite plate, which has a plurality of sub-grooves with inserted spring elements below the recess with media-tight material. A second cut surface of a second adjoining the first composite plate composite plate has below the Ausspa tion with media-tight material an elongated passport, in which the spring elements are arranged longitudinally slidably slidably for a precise abutment of the two composite plates.

These embodiment including composite panels the spring / groove versions, not as in the prior art with corresponding profile bars Plastic in the area of the abutment surfaces of the composite panels be realized completely individually to the individual local Conditions adapted Teilnuten with corresponding spring elements on, wherein the spring elements are introduced into the sub-grooves and subsequently the second composite panel with its elongated fitting groove on the Front side over these individual spring elements can be pushed. With this Assembly procedure is gentle on the cover, so that Splintering of parts of the cover completely prevented is.

By the spring elements is achieved that both composite panels with their Covers meet each other accurately. Likewise it is achieved that the respective edge protection exactly on the edge protection of the other Composite panel meets. After all Is it possible, in the arranged below the edge protection core material of Core plate from the underside of the composite panel of recesses for clamping elements bring in so that with the help of the clamping elements a mechanical Pressing the cut surfaces the respective butt joint under media-tight connection of the edge protection of two composite panels according to the invention can be done.

One Another aspect of the invention relates to embodiments, the cutouts realized in a composite panel with media-sealed edge cover. Thus, the edge protection according to the invention not only diverse can be used, but allows also a significant improvement over previous and support structures of the prior art. In addition, openings for example, water or gas taps be provided in the composite panel, which has a full-surface edge protection as edge full protection of the drill holes through the composite panel to disposal put.

at such an embodiment The invention will be a composite panel with a cutout, the Edge sides provided, provided, wherein the edge sides of the cutout Have recesses with the media-dense material, and wherein the media-tight material has a profile whose outer contour over the Cover of the composite plate protrudes and a profile paragraph within of the clipping forms. As with the edge protection according to the invention, the core material is retained below the recess filled with media-tight material, This core material provides a mechanical support for the profiled edge protection in the area of the edge sides of the cutout in the composite panel.

In addition, can the contour of the media-tight material passing over the cover of the composite panel protrudes, through additional Support materials below this projecting profile paragraph are supported. Preferably goes however, the core material in the cutout so far into it that it too nor the profile paragraph in its full width within the cutout supports. On the profile paragraph of the cutout of the composite panel can ever after the formation of the edge of such internals and components This media-tight can be arranged and flush with the cover or overhang the cutout in the cover.

From It is particularly advantageous if the profile of the media-tight material having a spring extension which projects into the core material. This will add an extra created mechanical anchoring in the core material, so that the Profile of the media-tight material of the edge protection in the recess additionally supported becomes. To increase the effect of this spring extension, the Spring extension and a built-component bearing profile paragraph be arranged opposite each other in the cross section of the media-tight material. As a result, the cross section forms a wide support beam for the installation component, which should be positioned in the cutout of the composite panel. Become additional support elements for supporting provided the profile paragraph, so it is advantageous that this support elements both with the media-tight material of the profile paragraph as well the core material of the composite plate stoffschüssig are connected.

Another aspect of the invention relates to the protection of the front lower edge of a composite panel and the protection of a strip of the underside of the composite panel from media and heat. This protection is useful in the areas of a composite panel in which substructures under the composite panel such as built-in cookers, automatic dishwashers and / or washing machines, the underside of Ver claim collar plate. The usually protected only with a film strip front bottom is further improved in the transition region of film for media-tight edge side cover, with media-tight and heat-resistant strips can reinforce the underside of the composite panel and protect when they are embedded in the bottom using the advantages of the edge protection according to the invention.

To has the front edge side of the composite panel a glued cover on and the bottom along the glued cover forms one Recess with the media-tight material. In this media density Material is poured in a media-tight foil covering the area the underside of the composite panel covering media-tight, the over substructures protrudes the composite plate. By attaching a recess according to the invention along the front lower edge of the composite plate and the introduction of a Film in this media-tight material, which then covers a larger area or Strip the underside of the composite panel covering media-tight will a reliable one Protection not only of the edge, but also of the endangered Ensured area of the underside of the composite panel.

In a further embodiment The invention features the front edge side of the composite panel glued edge side cover on, with the bottom along the glued cover a recess with the media-tight Material has as edge protection. On this media-proof material is a heat resistant and media-dense strip which forms an area of the underside the composite panel heat resistant and media-tight covering. This area protrudes above the substructures of the composite panel and preferably in areas of substructures of the composite panel like dishwashers and / or installation ovens and / or washing machines arranged. This strip is clear more resistant especially when exposed to heat as a thin film as in the preceding Embodiment. Furthermore the strip may consist of plastic filled with ceramic particles and thus exert a protective effect, as they normally only cover such composite panels having.

has the composite panel does not have the above-mentioned glued-on covers the front edge side, but rather has a rounded profiled shape of the front edges with a sealing plastic strip, a so-called "piping" as a transition to the moisture-sensitive underside, so may advantageously a recess with the media-tight material along the welt incorporated and filled with media-tight material. In this media-dense material either a foil protrudes, which covers a strip of the underside of the composite panel and so that media-tight closes, or it may again be a media-tight and heat-resistant strip made of metal, stainless steel and / or a mineral material arranged there be heat resistant and an area of the bottom of the composite panel media-tight covering. Again, this is the area of the bottom, the over Substructures of the composite plate protrudes, as it is e.g. for automatic dishwashers, in built-in ovens and / or in washing machines is the case.

One Method for producing a composite panel with edge protection has subsequent steps on. First, a composite panel with Media-absorbent core plate of core material with a top, a bottom and edge sides made. This will be a front Edge side and the top at least with a media-tight cover provide and form a front media-tight edge. A rear one Edge side and / or the underside of the composite panel are with a provided moisture-sensitive cover, with end faces and / or exposed edge sides of the composite panel no cover obtained and a media exposure.

After this such a composite panel is available, is attached to one of Edge sides a cut surface attached and in this sectional area a Ausspa tion along the back the cover worked into the core material preferably milled. Thereafter, the recess between cover and remaining core material with a media-tight material while introducing the media-tight Material filled in pores of the core material of the composite plate. Finally will the cut surface with the cover, the media-tight material and the remaining Core material reworked to a coplanar edge side of the composite panel. With this method, a composite plate is provided which with their edge protection made by this method now to a correspondingly prepared cut surface on another composite panel can be connected or with the edge protection also vertically built or set up to cover a second composite surface can be.

Another aspect of the method provides that the recess is not filled with a material and then provided with a potting compound. First, a first media-tight material is applied to the surfaces of the recess by penetrating the first media-tight material into pores of the core material of the composite panel and to the back of the cover. Even before this first media-dense material has cured, a second material in the form of a pre-ferred material is introduced into the viscous viscose mass of the first media-dense material Pressed sealing profile strip pressed and prepared by gluing with the first media-dense material edge protection. Subsequently, as in the first aspect of the method, a reworking of the cover, the media-tight materials and the remaining core material to a coplanar edge side of the composite panel, so that this edge side can be connected to a corresponding edge side of a second composite panel and / or this composite panel vertically or in one Angle can be placed on another cover of a composite panel.

One Another aspect of a method provides a section of a Composite panel with a profiled edge protection to provide, so on the profile of the edge protection a built-in component in the cutout the composite plate can be arranged. This is first a Groove from the underside of the composite panel to the back the cover worked out, the groove the contour of a has to be made section of the composite panel. To this first groove may still have a transverse groove in the groove in preparation for a Spring / spline between a media-tight material and the Core material of the composite plate are incorporated.

Then done a padding the groove and the transverse groove with a media-dense material under manufacturing a potting compound in the groove, which integrally connected to the cover is and a groove / spring teeth formed with the core material. Thereafter, a working out preferably a milling out of flat reduced section along the potting compound from the top the composite plate. By working out this scaled down Cutout results in a perfect edge protection between cover plate and potting compound and potting compound and arranged underneath Core material. Thereafter, preferably a profile milling of Cover for a tailor-made cutout and profile milling of the media-tight Material to a projecting into the neck profile paragraph of the media-tight material.

These Process variant has the advantage that with the working out the first groove an arbitrary cutout with any contour in the composite panel can be produced. The working out of a Quernut is not essential, but has the advantage that the gearing with the core material is improved so that the carrying capacity of the projecting into the neck profile paragraph of media-tight Material is significantly improved.

One Fourth aspect of the method relates to the production of an edge protector, the front lower edge of a composite panel, usually unprotected is. This will be a recess on the underside of the composite panel along a glued edge side cover of the front edge side the composite panel worked. Then the recess is filled up under Insert a media-tight foil into the filled-in recess. Finally, the inserted and now cohesively introduced in the media-tight material Affixed foil to an area of the underside of the composite panel, which has substructures of the Composite plate protrudes. This method has the advantage that now also areas of the bottom are protected from a media attack.

One fifth Aspect of the invention provides that the protection of the underside of Composite panel reinforced becomes. This is done by working out a recess the underside of the composite panel along one with a piping on the underside of the composite panel sealed round profiled Lower edge of the composite panel. The once introduced filling in the The area of the welting is subsequently with a media-tight Material filled up. After straightening The top of this media-proof material becomes a heat resistant and media-tight strip on the area of the underside of the composite panel upset, over Heat-generating substructures of the composite panel such as washing machines, Stoves and / or automatic dishwashers protrudes.

Preferably The method can also be modified to the effect that for edge protection from front sides, cut surfaces and / or profiled edge sides already a tongue / groove between media-dense material and core plate is provided. In this Case, the groove along the cover at different depths introduced and then Can be either with a single material or with two different materials the thus profiled recess are filled.

Preferably, one of the above-mentioned methods of Aspects 1 to 5 is used for a core material made of a laminated particle-like pressboard. This has the advantage that a close interlocking between the media-tight material of the edge protector and the core material occurs. For this purpose, preferably a potting compound is introduced as a single media-tight material via pressure and / or capillary forces in the pores of the surface of core material and the recess filled with it. As already mentioned above, the first aspect can be extended so far that on the one hand into a recess of the core material of the composite plate of different depth and different lengths recesses are introduced, so that with the media-dense material in cross section of this is cast to form a positive tongue and groove connection.

on the other hand it is also possible a pressed-in second media-tight material in the form of a Sealing profile bands over Screw members in the core material of the core plate in the recess until hardened a first media-tight material is fixed. Then be the unevenness which the fixing elements on top of the Sealing profile bands cause, when leveling by editing the so prepared area reduced and as far as smoothed, that the screw elements with the media-tight potting material, with the cover and with the front side of the core material one coplanar surface form.

Around pushing two composite panels to bring together on the two composite panels or on attached to their front ends miter angle. With media-tight material a recess is incorporated in the end faces and then with a media-dense mass filled. The Composite panels with these end faces can then butt under each other Introducing a further sealing compound, preferably a silicone rubber compound be connected to each other. Instead of the simple miter angle can also two composite panels on their front sides with gooseneck miter profiles be fixed to each other. These are recesses along the Cover worked into the core material and then filled. The Composite panels can then after straightening these cut surfaces with their so prepared End and edge sides abutting under contribution, for example a further sealant, preferably a silicone rubber together cohesively get connected.

Next the preparation of the front sides by means of a miter angle or by means of a gooseneck-shaped Miter profiles, there is also the possibility that to the first Composite panel with its front side and to a second composite panel a longitudinal side section each Miter profiles are attached and with media-dense Material padded Recesses are introduced as edge protection and the composite panels with the thus prepared edge sides abutting each other Introducing a sealant, preferably a silicone rubber compound cohesively get connected.

Around such a cohesive Press on each other or abut of two composite panels in their orientation to be improved in one of the colliding cut surfaces a first composite plate below the recess with media-tight Material several sub-grooves introduced with spring elements. The other the colliding one another cut surfaces a second composite panel is below the recess with media-tight material provided with an elongated passport, in which the spring elements longitudinal displacement sliding for a perfect abutment the two composite panels can be inserted. This process variant has the advantage that exactly aligned cut sides of two Composite panels can be matched to each other without a high load to exercise on the cover.

is a cutout provided in a composite panel, so can on a Profilabsatz the media-tight material an installation in the composite panel media-tight be installed, with the component to be flush with complete the cover or overhang the neckline can.

Farther provides a method that under the profile insert a support element cohesively with the media-tight material of the profile paragraph and the core material the composite panel is connected to the one protruding into the cutout Support heel made of media-tight material in addition. Finally, can to protect certain parts and areas of the underside of the Composite panel, for example, the glued edge side covers on have the front edge side, a recess with the media-tight Material are introduced by applying to this media-tight material a heat resistant and media-tight film and / or a heat-resistant and media-dense strip of material applied and thus the bottom in a critical area from heat- and media exposure becomes.

Another aspect of the invention relates to a method step in the introduction of curable potting compounds or curable media-dense materials in the recess, which should give a perfect non-porous and media-tight Kan tenschutz. In the above-mentioned process variants, two methods are mainly distinguished once filled the entire recess a single media-dense material, which is to cure after filling and / or first to provide the recess only on the recess walls with a first media-tight material and then a sealing profile band in the still Press in the material to be hardened. In both cases, it is advantageous to accelerate the curing process. In the case of a single media-tight material, the irradiation of the media-tight material to be cured with UV light is preferably carried out, which heats the surface and thus the media-tight material as potting compound and thus accelerates the curing process. In the case of two different media-tight materials in the form of a prefabricated you Processing profile band and a cohesive connection to the walls creating additional media-dense material may preferably be an ultrasonic irradiation used, especially as the ultrasound on the pressed sealing profile strip extends to the curable coating of the walls of the recess.

One Another preferred embodiment for the curing step consists in inserting into the potting carbon fibers, which in Form of individual fibers, mats or tissues can be inserted. The Ends of these carbon fibers are arranged such that their ends protrude from the potting compound. About the outstanding ends The carbon fibers are heated by means of an electric current and thus a faster and more effective and perfect curing process carried out. The advantage of this process step is that the carbon fiber even with the hardened Material cohesive connects and thus simultaneously represents a fiber reinforcement for the potting compound. This is of particular importance because the potting compound used in the Introducing, for example, a profile paragraph in a section of a Composite panel by placing a mounting element on the profile paragraph is loaded, due to the fiber reinforcement of the potting compound a significantly higher Take load as usual Casting resins. Thus, this process variant is not just a fiber-reinforced Gießharzansatz or a fiber reinforced Potting achieved, but also the production time and thus the Cost of a derarti gene edge protection with the help of a curable Potting compound decisively reduced. This impedes the fiber reinforcement Carbon fibers in any way a possible post-processing of the potting compound.

The The invention will now be described with reference to the accompanying figures.

1 shows with the detail figures 1a and 1b an edge protector of a composite panel according to a first embodiment of the invention;

2 shows with the detail figures 2a and 2 B an edge protector of a composite panel according to a second embodiment of the invention;

3 shows with the detail figures 3a and 3b an edge protector of a composite panel according to a third embodiment of the invention;

4 shows with the detail figures 4a and 4b an edge protector of a composite panel according to a fourth embodiment of the invention;

5 shows with the detail figures 5a and 5b an edge protector of a composite panel according to a fifth embodiment of the invention;

6 shows with the detail figures 6a to 6c Manufacturing steps for producing an edge protection according to 4 ;

7 shows with the detail figures 7a to 7e Manufacturing steps for producing a butt joint between two composite panels with edge protection according to one of 1 to 5 ;

8th shows with the detail figures 8a and 8b two composite panels with gooseneck miter profiles and with edge protection according to one of the 1 to 5 ;

9 shows with the detail figures 9a and 9b an edge protector for a cutout in a composite panel according to a sixth embodiment of the invention;

10 shows with the detail figures 10a to 10c an edge protector for a cutout in a composite panel according to a seventh embodiment of the invention;

11 shows with the detail figures 11a and 11b an edge protection with edge full protection of a composite panel according to an eighth embodiment of the invention;

12 shows with the detail figures 12a to 12c the production of an edge protection with full side edge protection according to a ninth embodiment of the invention for a so-called "tap hole" in a composite panel;

13 shows a schematic plan view of a composite panel with media-tight protected valve hole and with a cutout in a composite panel for a mounting element;

14 shows with the detail figures 14a and 14b an edge protector of a composite panel according to ninth and tenth embodiments of the invention;

15 shows with the detail figures 15a to 15c an edge protector for a composite panel with structured core panel;

16 shows with the detail figures 16a to 16d a known manufacturing method for sealing joints between worktops;

17 shows with the detail figures 17a to 17d the introduction of a known gutter in a worktop for the kitchen area;

18 shows with the detail figures 18a and 18b a known support structure for a sink in a section of a countertop.

1 shows with the detail figures 1a and 1b an edge protection 2 a composite panel 1 according to a first embodiment of the invention. The composite panel 1 has a core plate 3 from a nuclear material 4 on that on its top 5 from a media-tight cover 11 is protected. The edge side 7 here's a cut surface 27 through the composite panel 1 forms, however, is exposed to a media load, so that an edge protection 2 protect against this media load. This edge protection 2 is in a recess 18 introduced as a long groove in the core material 4 with the surfaces 21 and 22 extends and the back 20 the cover 11 then exposing the long groove with a potting compound 28 made of media-tight material 19 is replenished.

Because the core plate 3 lamellar pores and / or cavities, forms the media-dense material 19 as potting an anchorage with the core material 4 , If the core plate consists of a structure with cavities, they will be attached to the recess 18 adjacent cavities also partially with the media-tight material 19 filled and form an anchorage of the media-dense material 19 in the core plate material 4 , In addition to the media-tight and non-porous sealing of the back 20 the cover 11 and part of the cut surface 27 along the core material 4 reinforces the edge protection 2 In addition, the mechanical stability of the cover 11 from a plastic filled with ceramic particles. Thus, the upper edge 10 the cut surface 27 mechanically protected during assembly and on-site mounting. The lower edges 8th on the bottom 6 as well as the remaining lower cut surface 27 are on the other hand made of nuclear material 4 and thus for the introduction of additional auxiliary elements, for example, for connecting two composite panels as well as for bracing two composite panels continue to work.

1b shows a plan view of the edge side 7 with the nuclear material 4 the core plate 3 in the lower area and the media-tight material 19 in the upper part of the cut surface 27 that is on the entire length of the cut surface 27 the edge protection 2 realized. This is the media-dense material 19 in a finish with the core material 4 and the material of the cover 11 to a coplanar surface 33 machined, which now has an ideal sealable butt joint with the outside 32 of the media-tight material 19 can form.

2 shows with the detail figures 2a and 2 B an edge protection 2 a composite panel 1 according to a second embodiment of the invention. Components with the same functions as in 1 are denoted by like reference numerals and will not be discussed separately. The difference between the first embodiment of the invention according to 1 and the second embodiment of the invention according to 2 lies in the shape of the recess 18 for introducing a media-tight material 19 in the core plate 3 in the upper front edge area 10 the cover 11 a composite panel 1 , The recess 18 is wedge-shaped in the core material 4 incorporated and thus not only by the penetration of the media-tight material 19 into the pores and cavities of the core material 4 with the nuclear material 4 anchored, but in addition positively by the wedge-shaped configuration of the recess 18 in the area of the surface 22 with the nuclear material 4 connected.

2 B again shows the front view on the composite panel 1 , where the solid line is the one on the coplanar surface 33 visible boundary between nuclear material 4 and media-tight material 19 the surface 22 shows while the dashed line 59 the lowest point of the wedge-shaped recess in the core material 4 the wedge-shaped recess 18 shows.

3 shows with the detail figures 3a and 3b an edge protection 2 a composite panel 1 according to a third embodiment of the invention. Components with the same functions as in the preceding figures are identified by the same reference numerals and not explained in detail. Also in this third embodiment of the invention, the media-dense material 19 from a casting 28 , For example, from a cast resin, this time the recess 18 has two different depths, so that a spring extension 43 made of media-tight material 19 deeper into the core material 4 the core plate 3 protrudes as the upper surface 21 of the core material 4 ,

Through this spring extension 43 Advantageously, a greater stability is achieved and a better toothing of the media-tight material 19 or the potting compound 28 of the edge protection 2 with the core plate material 4 , The backside 20 the cover 11 is still with the media-tight material 19 cohesively and non-porous, so at the interface between the back 20 the cover 11 and the media-tight material 19 no media into the core material 4 can penetrate.

3b again shows a front view of the edge side 7 or cut surface 27 , where with a solid line the surface 22 as an interface between core material and media-tight material 19 is shown and with the dashed line 59 the border of the spring process 43 by doing nuclear material 4 is marked. By post-treatment, for example by milling is after casting the recess 18 as they are in 3a is shown, a coplanar surface 33 made of nuclear material 4 , media-tight material 19 and the cover 11 produced.

4 shows with the detail figures 4a and 4b an edge protection 2 a composite panel 1 according to a fourth embodiment of the invention. For this purpose, components with the same functions as in the preceding figures are identified by the same reference numerals and not explained in detail. In this embodiment of the invention, the recess 18 with two different media-tight materials 19 and 29 refilled. While the first media-tight material 19 by capillary forces into the pores of the core material 4 on the surfaces 21 and 22 to the nuclear material 4 penetrates and also the back 20 the cover 11 wetted, is the largest part of the recess 18 from a second media-tight material 29 padded, which is the shape of a sealing profile strip 30 having, wherein the sealing profile strip 30 into the not yet cured first media-tight material 19 is pressed.

4b again shows the corresponding plan view of the cut surface with the sealing profile strip 30 , as far as possible the recess 18 in the core material 4 fills.

5 shows with the detail figures 5a and 5b an edge protection 2 a composite panel 1 according to a fifth embodiment of the invention. Again, components having the same functions as in the previous figures are identified by the same reference numerals. In this fifth embodiment of the invention, the sealing profile band 30 with a spring extension 43 provided and fits with its outer contour in the deeper groove portion of the recess 18 one. This time, the edge protection 2 using two media-tight materials 19 and 29 achieved, being the first media-tight material 19 turn the back 20 the cover 11 wetted and into the pores and / or cavities of the core material 4 penetrates while the sealing profile band 30 into the not yet cured media-dense mass of the first media-dense material 19 is pressed.

5b shows the front view of this composite panel with an edge protection 2 , where a solid line is the interface of the surface 22 to the nuclear material 4 shows and a dashed line 59 the border of the spring process 43 marked.

6 shows with the detail figures 6a to 6c Manufacturing steps for the production of an edge protection 2 according to 4 , In 6a will initially be a cut surface 27 to the composite panel 1 attached or already exists. In 6b is the back 20 the cover 11 with the help of a recess 18 that are in the nuclear material 4 grooved, exposed and with a first media-dense material 19 wets at the same time in the surfaces 21 and 22 of the core material 4 the recess penetrates.

As 6b further shows, a sealing profile band 30 and a fixing element 31 kept ready to be in such a prepared recess 18 as a second media-tight material 29 to be pressed in. With 6c it is shown that the fixing element 31 first the sealing profile band 30 fixed in the recess until the first media-tight material 19 has hardened. After that, a coplanar surface 33 by milling the cut surface 27 be prepared by both the cover 11 , the sealing profile strip 30 with the fixing element 31 eg a screw, staple or pin element and the core material 4 at the same time coplanar and machined preferably milled.

7 shows with the detail figures 7a to 7e Manufacturing steps for producing a butt joint 53 between two composite panels P ₁ and P ₂ with edge protection 2 according to one of 1 to 5 , In addition shows 7a a front view of a cut surface 27 , an exposed edge side 16 corresponds and up to a front page 15 the composite panel 1 enough. In the exposed edge side 16 was already a media-tight material 19 as edge protection 2 the upper front edge 10 the cover 11 brought in. Below this edge protection 2 Partial grooves T ₁ , T ₂ and T _{3 are} provided, are introduced into the lamellar spring elements F ₁ , F ₂ and F ₃ with an elliptical contour consisting of the sub-grooves T ₁ , T ₂ and T ₃ and the exposed edge side 16 stick out and the nuclear material 4 the core plate 3 burden, destroy or swell.

7b shows a plan view of the two composite plates P ₁ and P ₂ , wherein P _2, the in 7a shown exposed edge side 16 shows in plan view and the sub-grooves T ₁ , T ₂ and T ₃ are marked by dashed lines. The edge protection 2 is marked with a dot-dashed line, while the spring elements F ₁ , F ₂ and F ₃ , which have an elliptical outline, in the three intended positions or the intended sub-grooves T ₁ , T ₂ and T ₃ are arranged. Opposite lying is an end face of the composite plate P ₁ with a cut surface 27 provided below the edge protection 2 , which is again indicated by a dash-dotted line, an elongated passport 38 is incorporated. This elongated passport groove 38 is not, however, to the rear edge side 12 pulled through, but ended significantly in front of the rear edge 12 , This has the advantage that it prevents Medi from the rear edge side 12 out over the elongated pass groove 38 in the core material 4 can spread. The limit of the passnut 38 is marked by a dashed line and runs almost from the front edge side 9 to the rear edge side 12 the composite plate P ₁ . Due to this construction, the elongated fitting groove 38 or the associated composite plate P ₁ fit with the first cut surface 27 on the second cut surface 37 of the longitudinal side section 36 the second composite plate P ₂ aligned accurately and postponed.

With 7c becomes the formed butt joint 53 from the abutting surfaces 26 the two composite panels P ₁ and P ₂ shown by the cut surfaces 27 and 37 is formed, wherein the front edge region with the edge sides 7 a miter angle 34 of about 45 °.

7d shows a section along the section line AA in 7b through the first composite panel P ₁ with the elongated fitting groove 38 and the edge protection 2 in the area of the upper front edge 10 ,

7e shows a cross section through the second composite plate P ₂ along in FIG 7b shown section line AA. The exposed edge side 16 has a partial groove T, in which a spring element F is inserted, while in the upper region of the exposed edge side 16 an edge protection 2 for the cover 11 is arranged, which at the same time the nuclear material 4 protects against a media attack.

8th shows with the detail figures 8a and 8b two composite panels P ₁ and P ₂ with gooseneck miter profile 35 and with an edge protection 2 according to one of 1 to 5 , Components with the same functions as in 7 are denoted by like reference numerals and will not be discussed separately. The 8th shows that the principle of an elongated fitting groove 38 in combination with the opposing sub-grooves T ₁ , T ₂ and T ₃ and inserted spring elements F ₁ , F ₂ and F ₃ also for more complex joints such as a gooseneck miter profile 35 can be used, wherein the spring elements represent a greater reliable safety, as if only two or even only such a spring element in the first cut surface 27 is provided, the exact fit to the second cut surface 37 should toast.

9 shows with the detail figures 9a and 9b an edge protection 2 for a section 39 in a composite panel 1 according to a sixth embodiment of the invention. This is below the cover 11 a stepped groove as a recess 18 introduced, for the introduction of a spring extension 43 made of media-tight material 19 is provided. At the same time, the media-dense material 19 an outer contour 41 milled out a profile paragraph 42 in the recess 39 protrudes, has. On this profile paragraph 42 can install components in the composite panel 1 in the neckline 39 are introduced, with an edge of the installation component on the profile paragraph 42 can support and with the cover 11 can form a coplanar and flush surface or the cutout 39 in the cover 11 can overhang.

9b shows a further variant of the introduction of an edge protector 2 in a section 39 a composite panel 1 , which is in section 39 extending profile paragraph 42 of the media-tight material 19 by a support element 44 , possibly later in the clipping 39 is supported. The embodiment according to 9b not only differs by the support element 44 , but also in that in this case on a spring extension 43 , as in 9a shown, is omitted. Through the support element 44 is advantageously the capacity of the profile paragraph 42 made of media-tight material 19 elevated.

10 shows with the detail figures 10a to 10c an edge protection 2 for a section 39 in a composite panel 1 according to a seventh embodiment of the invention. In addition shows 10a a plan view of the composite plate 1 , where a profile paragraph 42 that from the edge protection 2 was shaped in the neckline 39 protrudes. From the clipping 39 Here is shown only in plan view an angle. This shows the dashed line 59 the border between the edge protection 2 and in 10b shown core material 4 , The edge protection 2 is first prepared and provided in the same way as the 4 shows, but then not only the edge side 7 milled coplanar, but also an outer contour 41 into the media-tight material while simultaneously milling the cover 11 brought in.

Prerequisite for the introduction of such a profiled edge protection 2 is it that section 39 is sufficiently large to the recess 18 into the nuclear material 4 along the back 20 the cover 11 to mill. Is this recess 18 Once made, it can be made with a media-tight material 19 be filled and then the profile paragraph 42 with the in 10b shown outer contour 41 be introduced.

10c shows the insertion of a built-in component 69 in the neckline 39 that are on the profile paragraph 42 of the media-tight material 19 supports and with the top 5 the composite plate is almost flush or the cover 11 at the top 5 the composite panel 1 over collar can.

11 shows with the detail figures 11a and 11b an edge protection 2 with edge side full protection 67 a composite panel 1 according to an eighth embodiment of the invention. Components having the same functions as in the previous figures are identified by the same reference numerals and will not be discussed separately. The difference from the previous embodiments is that the entire core plate material 4 between a media-tight cover 11 on the top 5 the composite panel 1 and a media-tight cover 11 on the bottom 6 the composite panel 1 on the whole edge side 7 is milled out. Subsequently, the resulting recess is filled with a media-tight plastic, the backs 20 on the covers 11 the top 5 and the bottom 6 Media-tight and non-porous seals and at the same time a Randseitenvollschutz 67 for the nuclear material 4 allows.

The edge side full protection 67 for the nuclear material 4 especially for passage through the composite panel 1 be beneficial if no clamping elements or other structures in the core material 4 are to be arranged. 11b also shows the edge side full protection 67 , but with the difference that the underside 6 only from a moisture-sensitive cover 13 is covered, so it will be necessary to cover the entire area from the bottom 6 up to the back 20 the cover 11 on the top 5 of core plate material 4 free to mill before a media-tight material 19 as edge side full protection 67 can be applied and post-processed.

12 shows with the detail figures 12a to 12c the production of an edge protection 2 with edge side full protection 67 according to a ninth embodiment of the invention for a so-called "tap hole" 68 in a composite panel 1 , Components having the same functions as in the previous figures are shown in the detailed figures 12a to 12c denoted by the same reference numerals and not discussed separately. In this embodiment of the invention is first from the bottom 6 the composite plate from a slightly larger hole than it for the valve hole 68 is necessary in the core material 4 the core plate 3 up to the back 20 the cover 11 milled. It is ensured that the back 20 the cover 11 not damaged.

Subsequently, the milled hole with a media-tight curable plastic material 19 completely filled, so the media-tight material 19 a potting compound 28 forms. After this preparation will then, like it 12c shows, for example, from the top 5 out through the cover 11 through a tap hole 68 introduced with the final diameter, which is smaller than the original filled with potting compound opening in the composite plate 1 so on the surfaces 21 of the core material 4 an edge side full protection 67 exists, which is media-protected. In this media-protected tap hole can not only taps but also gas taps and other feedthroughs through the composite panel 1 be introduced.

12d to 12f show a further variant for the introduction of a valve bore 68 , Components with the same functions as in the 12a to 12c are denoted by like reference numerals and will not be discussed separately. In the production of the with the 12d to 12f shown fully rim-protected fitting bore 68 gets into the core plate material 4 from the bottom 6 from first a first hole introduced with a smaller diameter and then the back 20 the cover 11 exposed to a larger area that a paragraph 42 arises. The uncovered area of the back 20 the cover 11 Thus occupies a larger area than the cross section of the access hole for a valve hole. 12e shows the padding from the bottom 6 the composite panel 1 worked out core material area with a potting compound 28 made of media-tight material 19 , and 12f shows that from the top 5 the composite panel 1 through the cover 11 through introduced valve bore 68 with full rim protection 67 and positively applied potting compound, which in the region of the back 20 the cover 11 a positive edge protection 2 guaranteed.

12g to 12i show another example of the manufacture of a valve bore, wherein components with the same functions as in the preceding figures are identified by the same reference numerals and will not be discussed separately. In 12g becomes a cutout from the back 6 the composite panel 1 introduced, extending from the bottom 6 the composite panel 1 to the back 20 the cover 11 conically expanded. By this conical enlargement becomes with the subsequent in 12h shown filling the cutout with a potting compound 28 made of media-tight material 19 created a positive area in the now the tap hole 68 can be introduced. Here, too, is a margin page shot 67 achieved and a pore-free and media-tight edge protection 2 on the back side 20 the cover 11 ensured.

The 12j to 12l show manufacturing steps for subsequent introduction, for example. One circumferential groove 57 in a composite plate 1 , Here is the composite panel 1 already complete with a cover 11 provided so again from the bottom 6 the composite panel 1 from in the composite plate, for example, a circumferential groove can be introduced, which then as it 12k shows with a potting compound 28 made of media-tight material 19 is replenished. Is the edge protection 2 on the back side 20 Pore-sealed and media-tight, can from the top 5 out through the cover 11 through a profiled Ausspa tion in the field of casting material are introduced, at the same time a secure edge protection 2 between cover 11 and circulation trough 57 arises.

13a to 13d show an alternative method around a sink 58 in a section of a composite panel 1 contribute. In addition shows 13a a schematic plan view of a composite plate 1 with media-tight protected valve bore 68 for example, a tap hole and with a cutout 39 in the composite panel 1 for a built-in element such as a sink. For this purpose, the valve bore 68 an edge protection 2 on, however, as Randseitenvollschutz 67 , like it 12 shows is executed. The dashed line 59 shows the boundary layer between the media-tight material of the edge protection 2 and the material of the core plate of the composite panel 1 , The cutout 39 is circular in this embodiment of the invention, the edge protection 2 protrudes into the recess while the cover 11 the composite panel 1 leaves a larger opening into which a built-in component on the profile paragraph 42 of the edge protection 2 can be discontinued.

The 13b to 13d show in principle a possibility of improved flush installation of a mounting element in a composite panel 1 , In 13b becomes the composite panel 1 inverted and from the bottom 6 from a section 39 eg for a sink 58 worked out. In the edge side 21 becomes a groove for a future spring extension 43 and finally the sink 58 on a protruding residual cover 11 of the clipping 39 hung up. In 13c Now follows the potting the distance between sink 58 and edge side 21 while simultaneously filling the spring extension 43 in the edge side 21 of the clipping 39 , By filling with a potting compound 28 arises at the cover 11 the composite panel 1 an edge protection 2 that is both the back 20 the cover 11 protects and at the same time the sink 58 Media-tight with the cover 11 combines.

To the carrying capacity of the potting compound 28 how to improve is how 13d shows, on the potting compound a support element 44 even before the curing of the potting compound 28 glued or pressed that te at the same time with the Randsei 21 is materially connected via a suitable curable adhesive. By the from the potting compound 28 resulting spring process 43 and the additional support element 44 will ensure that the edge protection 2 between back 20 the cover 11 and the media-receiving core material 4 the core plate 3 is secured.

14 shows with the detail figures 14a and 14b an edge protection 2 a composite panel 1 according to a ninth and a tenth embodiment of the invention. In addition shows 14a the ninth embodiment of the invention, in which on the bottom 6 the composite panel 1 in the transition area of a media-tight cover 11 the rounded lower front edge 49 that has a pre-profiled cover 48 has, a piping 50 into the nuclear material 4 is introduced. This piping 50 is through a recess according to the invention 18 milled into which a media-tight material 19 is introduced in the form of a casting resin, wherein the recess 18 so big is that a foil end of a media-tight foil 46 can be poured into the media-dense plastic mass. Subsequently, the film 46 cohesively with the underside 6 the composite panel 1 connected to the bottom 6 in critical areas to protect against media exposure.

14b shows the ninth embodiment of the invention with a heat and media resistant strip 47 that is abutting on a glued edge side cover 45 is inserted and with the edge side cover in the area of the front lower edge 49 a non-porous and media-tight edge protection 2 forms by the strip 47 Media-tight is glued. This application can be used particularly advantageous when the front edge side 9 from a glued edge side cover 45 is protected. In this case, the heat-resistant and media-tight strip 47 be brought up to the glued edge side cover and the bottom 6 Protect against critical media such as hot steam and heat in critical areas.

15 shows with the detail figures 15a to 15c an edge protection 2 for a composite panel 1 with structured core plate 3 , This is indicated by the core plate 3 a honeycomb structure 25 with cavities 24 and a support structure 23 on. In this embodiment of a support structure 23 The honeycombs extend from one in 15b shown underside 6 the composite panel 1 to a top 5 the composite panel 1 , where both the bottom 6 as well as the top 5 from a media-tight cover 11 are covered, which together with the honeycomb structure 35 the core plate 3 a lightweight composite panel 1 form. However, to ver steer clear of the media-absorbing structure 23 is endangered by aggressive media, is an edge protection 2 provided in 15b is shown and both the back 20 the cover 11 as well as the upper area of the honeycomb structure 35 protects against media ingress.

15c shows a cross section through the composite panel 1 with structured core plate 3 , with two media-tight materials in a recess 18 are introduced, wherein the first media-dense material is a viscous viscous mass that fills the honeycomb structure so far that a sealing profile strip can be glued into the first media-tight material materially.

The 16 to 18 show composite panels with different joining techniques, as they are known from the prior art and have already been discussed in the introduction.

1

sandwich panel

2

edge protection

3

core plate

4

nuclear material

5

top

6

bottom

7

edge side

8th

edge

9

front Edge side or longitudinal side

10

front upper edge

11

media-tight cover

12

rear Edge side or rear longitudinal side

13

moisture-sensitive cover

15

front

16

exposed edge sides

18

recess

19

media-tight material

20

back the cover

21

Surface of the recess

22

Surface of the recess

23

support structure

24

cavity the support structure

25

honeycomb structure

26

abutting face

27

first section

28

potting compound

29

media-tight second material

30

Weatherstrip tape

31

screw

32

outside of the media-tight material

33

coplanar edge side

34

miter

35

Gooseneck miter profile

36

Longitudinal side portion

37

second section

38

elongated fitting groove

39

neckline

40

profile of the media-tight material

41

outer contour the profile of the media-tight material

42

profile paragraph

43

Spring extension

44

support element

45

glued- Edge side cover

46

media-tight foil

47

strip (Heat-resistant and media-tight)

48

pre-profiled cover

49

front lower edge or front lower edge

50

piping

53

butt joint

54

countertop

55

countertop

56

support structure

57

collecting channel or circulation trough

58

kitchen sink

59

dashed line

60

Staff profile

61

Staff profile

62

exposed coverage area

63

supporting edge

64

fold

65

poetry

66

Gießharzfuge

67

Edge side full protection

68

tap hole

69

mounting version

P ₁

sandwich panel 1

P ₂

sandwich panel 2

T ₁

partial groove

T ₂

partial groove

T ₃

partial groove

F ₁

spring element

F ₂

spring element

F ₃

spring element

Claims (50)

Composite panel with edge protection ( 2 ), wherein the composite plate ( 1 ) a media-receiving core plate ( 3 ) of nuclear material ( 4 ) with a top side ( 5 ), a bottom ( 6 ) and margins ( 7 ) and the edges ( 8th ) the transition between edge pages ( 7 ) and top ( 5 ) or underside ( 6 ), and wherein a front edge side ( 9 ) and the top ( 5 ) a front upper edge ( 10 ) and at least one media-tight cover ( 11 ) having an edge guard of the front upper edge ( 10 ), and wherein a rear edge side ( 12 ) and / or the underside ( 6 ) of the composite panel ( 1 ) an at least moisture-sensitive cover ( 13 ), and wherein end faces ( 15 ) and / or exposed edge pages ( 16 ) of the composite panel ( 1 ) no cover ( 11 ) and the exposed nuclear material ( 4 ) is exposed to a media load, at least media-prone parts of the exposed edge sides ( 16 ), the end faces ( 15 ), the rear edge side ( 12 ) and / or the underside ( 6 ) as media-tight edge protection ( 2 ) a groove-shaped recess ( 18 ), characterized in that the recess ( 18 ) between the media-tight cover ( 11 ) and the media-receiving core material ( 4 ) and at least one media-tight material ( 19 ), wherein the media-tight material ( 19 ) in the recess ( 18 ) a cohesive non-porous connection with the back ( 20 ) of the cover ( 11 ) and the surfaces ( 21 . 22 ) of the recess ( 18 ) of nuclear material ( 4 ) and an outer side ( 32 ) of the media-tight material ( 19 ) and the remaining edge side ( 7 ) of the core material ( 4 ) a coplanar edge side ( 33 ) of the composite panel ( 1 ) exhibit. Composite panel according to claim 1, characterized in that the core material ( 4 ) has lamellar pores. Composite panel according to claim 1, characterized in that the core material ( 4 ) a support structure ( 23 ) with cavities ( 24 ) having. Composite panel according to claim 1, characterized in that the core material ( 4 ) a honeycomb structure ( 25 ) having. Composite panel according to claim 1, characterized in that the core material ( 4 ) has a pressboard. Composite panel according to claim 1, characterized in that the core material ( 4 ) has a press straw plate. Composite panel according to claim 1, characterized in that the core material ( 4 ) has a Presshanfplatte. Composite panel according to claim 1, characterized in that the core material ( 4 ) has a Pressflachsplatte. Composite panel according to claim 1, characterized in that the core material ( 4 ) has a light metal structure. Composite panel according to one of the preceding claims, characterized in that the core plate ( 3 ) on their surfaces except for the end faces ( 15 ) a media-tight cover ( 11 ), wherein at least one of the end ( 15 ), Shock ( 26 ) or cut surfaces ( 27 ) of the composite panel ( 1 ) an edge ( 8th ) with a to the cover ( 11 ) abutting recess ( 18 ) coated with media-tight material ( 19 ) is filled up. Composite panel according to one of the preceding claims, characterized in that the cover ( 11 ) has a ceramic particles filled with plastic. Composite panel according to one of the preceding claims, characterized in that the composite panel ( 1 ) is a worktop. Composite panel according to one of the preceding claims, characterized in that the composite panel ( 1 ) is a worktop for kitchen and / or laboratory furniture. Composite panel according to one of the preceding claims, characterized in that the recess ( 18 ) a single media-tight material ( 19 ), which is used as potting compound ( 28 ) in pores or cavities of the edge sides ( 7 ) of nuclear material ( 4 ) penetrated by means of pressure and / or capillary forces and in the core material ( 4 ) is firmly anchored. Composite panel according to one of the preceding claims, characterized in that the recess ( 18 ) in the core material ( 4 ) of the composite panel ( 1 ) has different depths or different lengths and with the media-tight material ( 19 ) has a positive groove / spring connection in cross-section. Composite panel according to one of the preceding claims, characterized in that the recess ( 18 ) in the core material ( 4 ) of the composite panel ( 1 ) a first ( 19 ) and a second media-tight material ( 29 ), wherein the first media-tight material ( 19 ) has penetrated into pores of the wall sides of core material of the recess by means of pressure or capillary forces and the second media-tight material ( 29 ) a prefabricated sealing profile strip ( 30 ), which in the recess ( 18 ) and with the first media-tight material ( 19 ) is integrally connected. Composite panel according to claim 16, characterized in that the pressed-in sealing profile strip ( 30 ) via screw elements ( 31 ) in the core material ( 4 ) of the core plate ( 3 ) in the recess ( 19 ) is fixed. Composite panel according to one of the preceding claims, characterized in that the cover ( 11 ) of the composite panel ( 1 ) and the outside ( 32 ) of the media-tight material ( 19 ) of the recess ( 18 ) as well as the remaining edge side ( 7 ) of the core material ( 4 ) of the core plate ( 3 ) a coplanar edge side ( 33 ) of the composite panel with media-tight edge protection ( 2 ) exhibit. Composite panel according to one of the preceding claims, characterized in that two composite panels (P ₁ , P ₂ ) on their end faces ( 7 ) Miter angle ( 34 ) and with media-tight material ( 19 ) filled recesses ( 18 ) and with these end faces ( 7 ) are arranged abutting each other. Composite panel according to claim 19, characterized in that two composite panels (P ₁ , P ₂ ) on their end faces ( 7 ) Gooseneck miter profiles ( 35 ) and with media-tight material ( 19 ) filled recesses ( 18 ) and with these end faces ( 7 ) are arranged abutting each other. Composite panel according to one of the preceding claims, characterized in that a first composite panel (P ₁ ) with its end face ( 7 ) and a second composite panel (P ₂ ) having a longitudinal side portion ( 36 ) are arranged abutting each other and the abutting surfaces with media-tight material ( 19 ) filled recesses ( 18 ) exhibit. Composite panel according to one of claims 1 to 7, characterized in that a first cut surface ( 27 ) a first composite plate (P ₁ ) below the recess ( 18 ) with media-tight material ( 19 ) has a plurality of sub-grooves (T ₁ , T ₂ , T ₃ ) with inserted spring elements (F ₁ , F ₂ , F ₃ ) and a second cut surface ( 37 ) a second abutting to the first composite plate (P ₁ ) composite plate (P ₂ ) below the recess ( 18 ) with media-tight material ( 19 ) an elongated fitting groove ( 38 ), in which the spring elements (F ₁ , F ₂ , F ₃ ) are longitudinally slidably slidably arranged for a precisely fitting abutment of the two composite plates (P ₁ , P ₂ ). Composite panel according to one of the preceding claims, characterized in that the composite panel ( 1 ) a section ( 39 ) with margins ( 7 ) and the edge sides ( 7 ) of the section ( 39 ) Recesses ( 18 ) with the media-tight material ( 19 ), wherein the media-tight material ( 19 ) a profile ( 40 ) whose outer contour ( 41 ) over the cover ( 11 ) of the composite panel ( 1 ) and a profile paragraph ( 42 ) within the excerpt ( 39 ). Composite panel according to claim 23, characterized in that on the profile shoulder ( 42 ) of the media-tight material ( 19 ) Internals of the composite panel ( 1 ) which are flush with the cover ( 11 ) or the section ( 39 ) overhang. Composite panel according to claim 23 or claim 24, characterized in that the profile ( 40 ) of the media-tight material ( 19 ) a spring extension ( 43 ) incorporated in the core material ( 4 ) protrudes. Composite panel according to claim 25, characterized in that the spring extension ( 43 ) and the profile paragraph ( 42 ) in the cross section of the media-tight material ( 19 ) are arranged opposite each other. Composite panel according to one of claims 23 to 26, characterized in that the profile shoulder ( 42 ) of a supporting element ( 44 ), the material fit with the media-dense material ( 19 ) of the profile paragraph ( 42 ) and the nuclear material ( 4 ) of the composite panel ( 1 ) connected is. Composite panel according to one of the preceding claims, characterized in that the front edge side ( 9 ) of the composite panel ( 1 ) a glued cover ( 45 ) and the underside ( 6 ) along the glued cover ( 45 ) a recess ( 18 ) with the media-tight material ( 19 ) into which a media-tight film ( 46 protruding the area of the underside ( 6 ) of the composite panel ( 1 ), which covers the substructures of the composite panel ( 1 protrudes). Composite panel according to one of the preceding claims, characterized in that the front edge side ( 9 ) of the composite panel ( 1 ) a glued edge side cover ( 45 ) and the underside ( 6 ) along the glued cover ( 45 ) a recess ( 18 ) with the media-tight material ( 19 ), on which a heat-resistant and media-free strip ( 47 ), which covers an area of the underside ( 6 ) of the composite panel ( 1 ) hit zebeständig and media-tight, and which projects beyond substructures of the composite plate, preferably in areas of substructures of the composite plate ( 1 ) such as automatic dishwashers and / or built-in ovens. Composite panel according to one of the preceding claims, characterized in that a front edge side of the composite panel has a pre-profiled cover ( 48 ) having a front rounded lower edge ( 49 ) of the underside ( 6 ), which along the rounded edge ( 49 ) on the bottom ( 6 ) a glued plastic strip or Keder ( 50 ), wherein the recess ( 18 ) with the media-tight material ( 19 ) along the keder ( 50 ) and with media-tight material ( 19 ) into which a film ( 46 protruding the area of the underside ( 6 ) of the composite panel ( 1 ), which extends beyond substructures of the composite panel. Composite panel according to claim 30, characterized in that the underside ( 6 ) along the pre-profiled cover ( 48 ) a recess ( 18 ) with the media-tight material ( 19 ), on which a heat-resistant and media-free strip ( 47 ) made of metal, stainless steel and / or mineral, which is an area of the underside ( 6 ) of the Composite plate ( 1 ) heat-resistant and media-tight covering the substructures of the composite panel ( 1 protrudes, preferably in areas of substructures of the composite panel ( 1 ) such as automatic dishwashers and / or built-in ovens. Method for producing a composite panel ( 1 ) with edge protection ( 2 ), the method comprising the following steps: - producing a composite panel ( 1 ) with media-receiving core plate ( 3 ) of nuclear material ( 4 ) with a top side ( 5 ), a bottom ( 6 ) and margins ( 7 ), wherein a front edge side ( 9 ) and the top ( 5 ) a front upper edge ( 10 ) and with at least one media-tight cover ( 11 ) providing a media-tight edge protection ( 2 ) of the front upper edge ( 10 ), and wherein a rear edge side ( 12 ) and / or the underside ( 6 ) of the composite panel ( 1 ) with a moisture-sensitive cover ( 13 ), and where for faces ( 15 ) and / or exposed edge pages ( 16 ) of the composite panel ( 1 ) no cover ( 11 ) is provided so that they are exposed to a media load; - Attaching a cut surface ( 27 ) to one of the edge sides ( 7 ) of the composite panel ( 1 ) forming a coplanar edge side from the cut surface of the core material ( 4 ) and the cut surface of the cover ( 11 ); - Milling a recess ( 18 ) into the cut surface ( 27 ) on the back ( 20 ) of the cover ( 11 ) into the nuclear material ( 4 ); - filling the recess ( 18 ) between covers ( 11 ) and remaining nuclear material ( 4 ) with a media-tight material ( 19 ) under penetration of the media-tight material ( 19 ) in pores of the core material ( 4 ) of the composite panel ( 1 ); - Reaming of cover ( 11 ), media-tight material ( 19 ) and remaining nuclear material ( 4 ) to a coplanar edge side ( 33 ) of the composite panel ( 1 ). A method according to claim 32, characterized in that for filling the recess, first a first media-tight material ( 19 ) on the surfaces ( 21 . 22 ) of the recess ( 18 ) under penetration of the first media-tight material ( 19 ) in pores of the core material ( 4 ) of the composite panel ( 1 ) and then pressing in a second material ( 39 ) in the form of a prefabricated sealing profile strip ( 30 ) in the recess ( 18 ) while adhering to the first media-tight material ( 19 ) and finally a re-milling of the cover ( 11 ), the media-tight materials ( 19 . 29 ) and the remaining core material ( 4 ) to a coplanar edge side ( 33 ) of the composite panel ( 1 ) is carried out. A method according to claim 32, characterized in that before or after the attachment of a cutting surface milling a groove from the bottom ( 6 ) of the composite panel ( 1 ) to the back ( 20 ) of the cover ( 11 ), wherein the groove is the contour of a section to be produced ( 39 ) of the composite panel ( 1 ) and then a transverse groove in the groove to prepare a tongue / groove between a media-tight material ( 19 ) and the nuclear material ( 4 ) of the composite panel ( 1 ), then filling the groove and the transverse groove with a media-tight material ( 19 ) producing a potting compound ( 28 ) takes place in the groove which coincides with the cover ( 11 ) is materially connected and a tongue / groove toothing with the core material ( 4 ) and then a reduced area ( 39 ) along the potting compound ( 28 ) from the top of the composite panel ( 1 ) is milled out and finally a profile milling of the cover ( 11 ) to a tailor-made section ( 39 ) and the media-tight material ( 19 ) to one in the section ( 39 ) projecting profile paragraph ( 42 ) of the media-tight material ( 19 ) is carried out. A method according to claim 32, characterized in that before or after the attachment of a cut surface milling a recess ( 18 ) on the bottom ( 6 ) of the composite panel ( 1 ) along a glued edge side cover ( 45 ) of the front edge side ( 9 ) of the composite panel ( 1 ) and then inserting a media-tight film ( 46 ) the recess ( 18 ), wherein the media-tight film ( 46 ) on an area of the underside ( 6 ) of the composite panel ( 1 ), which protrudes beyond possible substructures of the composite panel. A method according to claim 32, characterized in that before or after the attachment of a cutting surface milling a Ausspa tion ( 18 ) on the bottom ( 6 ) of the composite panel ( 1 ) along one with a piping ( 50 ) on the bottom ( 6 ) of the composite panel ( 1 ) sealed round profiled lower edge ( 49 ) of the composite panel ( 1 ), and then the recess ( 18 ) with a media-tight material ( 19 ) and finally a heat-resistant and media-free strip ( 47 ) on an area of the underside ( 6 ) of the composite panel ( 1 ), the heat generating possible substructures of the composite plate ( 1 ) protruding is applied. Method according to one of claims 32 to 36, characterized in that as core material ( 4 ) a pressboard with lamellar pores is used. Method according to one of claims 32 to 37, characterized in that a potting compound ( 28 ) as a single media-tight material ( 19 ) via pressure and / or capillary forces in pores of the surfaces ( 21 . 22 ) of nuclear material ( 4 ) penetrates and the recess ( 18 ). Method according to one of claims 32 to 38, characterized in that a recess ( 18 ) into the nuclear material ( 4 ) of the composite panel ( 1 ) with different depths and / or different lengths and with the media-tight material ( 19 ) is cast in cross-section to form a positive groove / spring connection. A method according to claim 33, characterized in that the pressed-in sealing profile strip ( 30 ) via screw elements ( 31 ) in the core material ( 4 ) of the core plate ( 3 ) in the recess ( 18 ) until the first media-tight material ( 19 ) is fixed. Method according to claim 33, characterized in that the outside ( 32 ) of the media-tight material ( 19 ) of the recess ( 18 ), the remaining edge side ( 7 ) of the core material ( 4 ) of the core plate ( 3 ) and the cover ( 11 ) of the composite panel ( 1 ) as well as the screw elements ( 31 ) to a coplanar edge side ( 33 ) of the composite panel ( 1 ) with media-tight edge protection ( 2 ) to cover ( 11 ) are milled. Method according to one of claims 32, 33, 37 to 41, characterized in that on two composite panels (P ₁ , P ₂ ) on the end faces ( 15 ) Miter angle ( 34 ) and with media-tight material ( 19 ) filled recesses ( 18 ) in the end faces ( 7 ) and the composite panels ( 1 ) with these end faces ( 7 ) abutting one another with the introduction of a sealant, preferably a silicone rubber compound. Method according to one of claims 32, 33, 37 to 41, characterized in that on two composite panels (P ₁ , P ₂ ) on their end faces ( 7 ) Gooseneck miter profiles ( 35 ) and with media-tight material ( 19 ) filled recesses ( 18 ) and the composite panels (P ₁ , P ₂ ) with these end faces ( 7 ) abutting one another with the introduction of a sealant, preferably a silicone rubber compound. Method according to one of claims 32, 33, 37 to 41, characterized in that to a first composite plate (P ₁ ) with its end face ( 7 ) and to a second composite panel (P ₂ ) at a longitudinal side portion ( 36 ) Miter profiles ( 35 ) and with media-tight material ( 19 ) filled recesses ( 18 ) and the composite panels (P ₁ , P ₂ ) with the thus prepared edge sides ( 7 ) abutting one another with the introduction of a sealant, preferably a silicone rubber compound. Method according to one of claims 42 to 44, characterized in that in one of the abutting cut surfaces ( 27 ) a first composite plate (P ₁ ) below the recess ( 18 ) with media-tight material ( 19 ) several sub-grooves (T ₁ , T ₂ , T ₃ ) with spring elements (F ₁ , F ₂ , F ₃ ) are introduced and in the other of the abutting cut surfaces ( 27 . 37 ) a second composite plate (P ₂ ) below the recess ( 18 ) with media-tight material ( 19 ) an elongated fitting groove ( 38 ) is introduced, in which the spring elements (F ₁ , F ₂ , F ₃ ) slidably longitudinally slidably inserted for a precise abutment of the two composite plates (P ₁ , P ₂ ). A method according to claim 34, characterized in that on a profile paragraph ( 42 ) of the media-tight material ( 19 ) Internals of the composite panel ( 1 ) media-tight, which are flush with the cover ( 11 ) or the section ( 39 ) overhang. A method according to claim 34 or claim 46, characterized in that the spring extension ( 43 ) and the profile paragraph ( 42 ) in the cross section of the media-tight material ( 19 ) are arranged opposite each other. Method according to one of claims 34, 46 or 47, characterized in that under the profile paragraph ( 42 ) a support element ( 44 ) cohesively with the media-tight material ( 19 ) of the profile paragraph ( 42 ) and the nuclear material ( 4 ) of the composite panel ( 1 ) is connected. Method according to claim 35, characterized in that in the underside ( 6 ) along a glued edge side cover ( 45 ) a recess ( 18 ) with the media-tight material ( 19 ), on which a heat-resistant and media-tight film ( 46 ) is arranged, which covers an area of the underside ( 6 ) of the composite panel ( 1 ) heat-resistant and media-tight covering the substructures of the composite panel ( 1 protrudes, preferably in areas of substructures of the composite panel ( 1 ) such as automatic dishwashers and / or built-in ovens. Method according to claim 36, characterized in that in the underside ( 6 ) along the pre-profiled edge side cover ( 45 ) a recess ( 18 ) with the media-tight material ( 19 ), on which a heat-resistant and media-free strip ( 47 ), which covers an area of the underside ( 6 ) of the composite panel ( 1 ) heat-resistant and media-tight covering the substructures of the composite panel ( 1 protrudes, preferably in areas of heat-generating substructures of the composite plate ( 1 ).