DE102020119568A1 - Plate body - Google Patents

Abstract

The invention relates to a plate body (1) with a multi-layer structure, a first layer (5), which in use forms an outer surface (4), consists of a ceramic material, natural stone, a quartz composite or some other stone-like material which presents a stone-like outer surface and a second and a third layer and optionally further layers (6) are provided, which are arranged under the first layer (5), the second layer consisting of a mineral granulate bonded to form a body by means of a binding agent, a foam or some other material Material with low tensile strength compared to the first layer, and the third layer can be designed as a joist, the first layer (5) also having an outer edge (15) and an inner edge (16) and the plate body (8) a Thickness (d). For the advantageous configuration of such a panel body, it is proposed that an edge region (9) of the panel body (1) is covered with an edge strip (12), that the edge strip (12) extends from the outer edge (15) of the outer surface (4) forming first layer (5) extends over a thickness (d) of the plate body (1), wherein it is also in overlap with the third layer, and that the edge strip (12) consists of a polymeric plastic, metal or wood material.

Description

Field of technology

The invention relates to a plate body with a multi-layer structure, a first layer, which in use forms an outer surface, consists of a ceramic material, natural stone, a quartz composite or some other stone-like material presenting a stone-like outer surface, and a second and a third layer and optionally further layers are provided, which are arranged under the first layer, the second layer consisting of a mineral granulate bonded to form a body by means of a binding agent, a foam or some other material with low tensile strength compared to the first layer, and the third layer may be a joist, the first layer further having an outer and an inner marginal edge and the plate body having a thickness.

State of the art

Plate bodies of the type in question are already known in various respects. Among other things, as also preferred in the context of the present application, if necessary with corresponding further adaptation, in the form of worktops for kitchens, for example. In this case, as is also preferred, the first layer can form an upper layer which represents the work surface. Such worktops are already known from a natural stone forming the upper outer surface.

In the known panel bodies, such as, for example, worktops, the first layer is preferably glued to the second layer over the entire surface. Correspondingly, this results overall in a composite panel body with a thickness viewed perpendicular to the broad surface extension.

An outer edge of the first layer preferably circumferentially delimits the outer surface of the first layer, for example the work surface in the case of a worktop, while the inner edge also delimits the inner surface of the first layer opposite the outer surface and in the composite arrangement with the second layer on a facing, if necessary, the circumferential outer marginal edge of the second layer can also bear or can run in an associated manner.

Summary of the invention

Based on the prior art presented, the invention is concerned with the task of advantageously designing a plate body of the type in question.

A possible solution to the problem is given according to a first inventive idea in a panel body, in which it is essential that an edge area of the panel body is covered with an edge strip, that the edge strip extends from the outer edge of the layer forming the outer surface over the thickness of the Plate body extends, wherein it is also in overlap with the third layer, for example the beam and that the edge strip consists of a polymeric plastic, metal or wood material.

The arrangement of an edge strip, which extends over the preferably entire thickness of the panel body, corresponding to both the thickness of the second or more additional layers viewed perpendicular to the broad surface extension and the first layer, is advantageous with regard to the design and protection of the panel body. Edge area. Thus, the first layer, which does not need to be covered by an edge strip, is also covered in its edge area, specifically in direct connection, preferably provided by the same edge strip of the same material, with an overlap of the one or more further layers. In particular, when the edge strip is made of a flexible material, such as, in particular, a polymer plastic, favorable impact characteristics can also be easily achieved. Even with an edge strip made of metal or wood material, an impact characteristic can still be achieved which, what is important in practical use with a worktop, for example, a piece of crockery shattering if it accidentally hits the worktop, especially in the area of the stone-like outer surface The forming first layer can otherwise easily occur. The worktop is also protected in the sense that repulsions, also referred to as shell formation, are prevented. Such an impact characteristic is therefore particularly desirable in the area of the first layer. The arrangement of an edge strip also enables a variable, in particular optically variable, design of the panel body edge area. In this regard, there can be a color or pattern design of the edge strip that is different or the same in particular with respect to the outer surface of the first layer.

In particular, with regard to the thickness of the panel body, the edge strip preferably also extends into the area of a girder or, viewed from the side, overlaps this. This extension has a particular advantage if, as is preferred within the scope of the present invention, the edge strip completely only or at least essentially by being glued to the Plate body is otherwise connected. This extension over the thickness of the plate body is preferably also independent of how many layers the plate body is composed of.

With regard to the first and the second layer, it is not excluded that between these layers one or more further, according to the present description, then fourth etc. layer, for example as a layer made of, for example, resinated tissue, attached directly under the first layer forming the stone-like outer surface is. A preferably substantially homogeneously closed layer, such as consisting of a polymeric cast layer, can also be formed under the first layer. A suitable material for this purpose is, for example, a polymer foam as also described below.

The one or more further layers are particularly preferably designed particularly with regard to tensile strength. It is preferred to use a material with good tensile properties in order to prevent the edge strip from being pulled out or broken out. This further layer can also (only - or in addition to, for example, two such further layers) be arranged in the sequence from above in front of the bottom layer. With regard to this further layer, it can also not be an actual layer, but only a special area of the second layer, which is for example reinforced with binding agent in order to increase an area (extending parallel to the first layer) within this second layer Form tensile strength. This area of increased tensile strength can also be provided over only part of the length of the plate body, that is to say preferably at the edge.

An increased tensile strength can mean that the tensile strength corresponds to 1.5 times or more the tensile strength of the second layer, unless it is already reinforced. It can be up to 10 times or more.

Because the edge strip according to the invention also extends over the thickness of the first layer, preferably up to the outer edge of the first layer, this impact-sensitive edge area of the first layer is protected by the overlapping edge strip. The feel is improved over the entire thickness of the edge area of the plate body.

The marginal edge is preferably flexible as such, in particular at room temperature. Insofar as it is flexible, plate bodies with a floor plan that deviates from a right-angled floor plan can in particular also be favorably provided with such an edge. Roundings, such as quarter circles or full circles, can be provided in an edge region of the plate body, which are provided with the edge edge. In addition, a flexible edge can preferably also be kept and used as rolled goods.

Furthermore, by arranging an edge strip extending over the entire thickness of the panel body, a variable geometric design of the edge area can be achieved as a whole, for example due to the formation of an outer surface of the edge strip that is curved in a profile or at an acute angle to a horizontally extending edge edge.

Even if, as explained in detail below, an edge strip made of a plastic is preferred within the scope of the invention, it can, however, also be an edge strip made of a wood material or of metal. With regard to wood, any solid wood, in particular oak, ash, beech, maple, birch, alder, spruce and possibly also cherry tree or the like, can be used. With regard to metal, aluminum is preferred, but it can also be steel, preferably stainless steel, for example.

With regard to a girder, for example the third layer, it can be a glass fiber fabric. It can also be another fibrous material, such as natural fibers or bio-fibers, whereby the fibers can be woven or also in random layers. Biofibers are understood to mean, in particular, those fibers which dissolve in physiological fluids such as those found in the alveoli of humans. Therefore, they cannot be harmful. This support, possibly the glass fiber fabric, can be soaked and cured with an adhesive with which it is also connected to the second layer, for example. The third layer can, however, also be formed as a stone-like layer, from one of the materials, for example as described for the first layer.

Further features of the invention are explained below, also in the description of the figures, often in their preferred assignment to the subject matter of claim 1 or to features of further claims. However, they can also be assigned to only individual features of claim 1 or the respective further claim or each can be independent of importance.

With regard to the edge strip, a dimensionally stable, optionally elastically or plastically deformable, further optionally resilient polymeric material can be used.

In more detail, the edge strip can consist of a thermoplastic material, correspondingly preferably made of a plastic material, such as in particular a polyolefin plastic (further for example polypropylene). For example, an ABS plastic (acrylonitrile-butadiene-styrene copolymer) can also be used. For example, a copper vapor-deposited plastic can also be used.

In particular when the edge strip is formed from a plastic material, this can initially be present as an extruded profile, for example. As already noted, it can be an extruded profile which, with the appropriate flexibility of the material, ultimately enables storage in the form of rolled goods.

According to a preferred embodiment, the edge strip can be attached to a connecting surface of the panel body which in a cross section is essentially at right angles to the outer surface and continuously running straight. In this case, the connection surface can extend perpendicular to the outer surface in the thickness direction of the plate body, up to an acute angle of a few degrees, for example 2 degrees or 3 degrees, to a vertical.

The attachment of the edge strip to the panel body can initially preferably be achieved by gluing. In this context, bonding with a hotmelt adhesive is possible, for example. These hot-melt adhesives can, for example, be based on polyamides, polyethylene and other plastics (APAO, EVAC, TPE-E, TPE-U, TPE-A) and vinylpyrrolidone / vinyl acetate copolymers. In addition, hot melt adhesives based on resin (terpenes, hydrocarbon resins) are also possible, for example. In addition, the use of a foaming adhesive, in particular a foaming polyurethane adhesive, is possible.

With regard to the preferably different materials from which the panel body is made, viewed across its thickness, a preferred embodiment is also given in that different adhesives are used across the thickness of the panel body between the panel body and the edge strip. In terms of production, one adhesive can therefore be provided which is assigned to the second layer and another adhesive which is assigned to the first layer and in this respect can be specially adapted to the respective material combination.

Different adhesives across the thickness of the panel body can also be important regardless of an assignment to individual layers. For example, it can be advantageous, viewed across a cross-section, to provide a rapidly setting adhesive at the bottom and / or above and, for example, to provide a slowly setting adhesive in a central area. In this way, for example, adhesive securing of the edge strip can be ensured comparatively quickly in one or both edge areas, but at the same time, in one or more further areas, time can be given to achieve stronger adhesive bonding by means of a slower hardening adhesive.

The adhesive, regardless of whether different adhesives or a uniform adhesive is used over the thickness, can also be selected to be expanding. This can result in a particularly favorable clawing property with regard to the attachment to the corresponding layer. If there are several adhesives provided over the thickness, one or more of these adhesives can also be selected to be expanding.

With regard to the plate body, in particular in the area of the second or further layers (carrier layers) with regard to the connecting surface, it can be a three-dimensionally structured surface, in particular due to the design and manufacture of the second and possibly further layers in this context. Starting from a connecting plane of the second layer that preferably merges into the connecting surface of the first layer, the three-dimensional surface structure can result in recesses and undercuts which advantageously allow the edge strip to be bonded or glued to the second or further layers.

With regard to an advantageous adhesion or gluing of the edge strip to the second layer, for example, which has a three-dimensionally structured surface, a recess that occupies part of the thickness of the second layer and merges into the connecting surface running essentially at right angles to the layers can also be provided in this layer. In this way, the connecting surface can be enlarged in a favorable manner. The enlargement can be used, on the one hand, by an extension starting from the edge strip and extending into the recess. This extension can also preferably be formed like a barb. In addition to gluing, mechanical clawing of the edge strip can also be achieved in this position. The recess can also be filled with a filler compound, as will be described further below, the filler compound forming a surface on the outside which is preferably (again) in alignment with the connection surface.

The edge strip can be glued to the panel body in the connecting surface over the entire thickness mentioned. So can further a gluing of the edge strip both with the first layer as well as with the second and optionally further layers, as also preferably, can be provided.

An adhesive used for bonding can be applied separately to the connecting surface and / or to the facing surface of the edge strip in the course of production. This can be an adhesive that is identical to or different from the binding agent for producing the second layer and optionally further layers and / or the adhesive between the first and second and optionally further layers. As already noted, in this context it is also preferred to use different adhesives over the thickness of the plate body, if necessary.

In this context, a hot-melt adhesive can be used, further for example a one-component adhesive, alternatively or additionally a two-component adhesive in a further area of the thickness of the plate body.

The gluing can also alternatively be carried out based on a lamination process, for example as a result of press lamination in a corresponding lamination device. The lamination can be done with the use of a wet adhesive, alternatively a dry adhesive (wet lamination or dry lamination). Thermal lamination is also possible in this regard, whereby under the influence of heat, for example, the area of the edge strip facing the connection surface of the panel body is heated in such a way that the thermoplastic material of the edge strip preferably provided here is melted to glue the edge strip to the panel body. For example, the targeted application of heat to the edge strip can be achieved using laser technology.

The application of heat by means of laser technology means, for example, that an edge strip provided with a cured adhesive layer, which adhesive layer can also consist of different adhesives with regard to the thickness of the panel body, as described above, is activated by laser beams. Activation means, in particular, converting the adhesive mass into a sticky or liquid state. In particular, this laser technology can also be used to specifically introduce different amounts of energy into different areas of the adhesive layer of the edging strip. In this way, too, a different activation of the different adhesives can be achieved particularly favorably. As also explained in detail further below, the edge strip as such can also consist of a material which, as such and can easily be converted into a sticky state by heating. With such an edge strip, an outer surface area can be softened (solely) by means of laser beams, so that the edge strip develops a stickiness to the required degree from its own material, which can then be used for gluing.

In a further embodiment, the same adhesive can be selected with regard to the selected adhesive, which is also used to connect the first layer to the second and optionally further layers to form the plate body.

With regard to the first layer, it can be a natural stone. With regard to the formation from another stone-like material, it can be, for example, a material that can consist of a plastic / granulate mixture. It can also be a ceramic material. Ultimately, any other stone-like material refers to any material that offers a user a surface with a stone-like quality, for example ceramics as well.

The second layer can consist of a mineral granulate, for example an expandable granulate or an expandable sand, in addition, if appropriate, a mixture of broken and rubbed rock. The mineral granulate is preferably bound using an adhesive-like binder, which can result in a three-dimensional surface. The surface structure of this second layer is preferably significantly more uneven than the associated surface of the first layer and, if necessary, is fissured compared to the facing surface of the first layer. Incidentally, this also applies to the connecting surfaces for the edge strip that result on the edge of the first layer and on the edge of the second layer.

The second layer can also consist of a foam, in particular a rigid foam or some other material with, however, typically lower density and / or lower tensile strength compared to the first layer. For example, it can be a casting compound that has an inorganic filler such as quartz sand. This is about to the WO 96/16089 A1 to refer. It can, for example, be polyurethane or polystyrene. Preferably here with a density of less than 500 kg / m ³ .

It can also be an organic or inorganic polymer foam.

The degree of a surface roughness of the surface structure of the second layer, also called the roughness value, is preferably above RZ 25 (mean roughness in µm), which can be determined using the stylus method.

With regard to an overall thickness of such a plate body, it is preferred that this is in the range from approximately 10 mm to approximately 50 mm or 100 mm. The first layer can have a thickness dimension of, for example, 1 mm to 10 mm, preferably in the range of approximately 2 mm to 6 mm.

A third layer can also be provided, for example a fabric layer, in particular a glass fiber fabric layer. Such a third layer can be attached to the underside of the second layer, in particular it can be adhesively attached to the second layer.

Such a third layer is preferably formed comparatively thin, with a thickness range of approximately 1 mm. According to the invention, the thickness of such a third layer can flow into the total thickness of the panel body, so that an edge strip provided can also cover this third layer at the edge.

The difference dimension (total thickness minus the thicknesses for the first and possibly third layer) gives the thickness dimension of the second layer. This in particular also with regard to a usual thickness dimension for a worktop in a kitchen, which is usually around 38 mm or 16 mm. However, thicknesses which differ from this can also be used in a sensible manner.

Only one edge area can be provided with an edge strip as described above, for example a visible edge area of a worktop. In addition, several edge areas, for example opposing edge areas of the panel body, can be provided with such an edge strip, and more than two edge areas up to all edge areas of the panel body.

Figure list

• 1 ein schematisch dargestelltes Küchenmöbel mit einem darauf befindlichen Plattenkörper in Form einer Arbeitsplatte;
• 2 den vergrößerten Schnitt gemäß der Linie II - II in 1 durch den Plattenkörper;
• 3 die Herausvergrößerung des Bereiches III mit dazugehörigen Lupendarstellungen, betreffend eine erste Ausführungsform;
• 4 eine der 3 im Wesentlichen entsprechende Darstellung, betreffend eine zweite Ausführungsform;
• 5 eine der 3 entsprechende Querschnittsdarstellung mit einer weiteren Ausführungsform, bei welcher die Kantenleiste einen Rastfuß aufweist;
• 6 eine weitere Ausführungsform ausgehend von einer Darstellung gemäß 5, wobei jedoch die Ausnehmung mit einem von der Kantenleiste unabhängigen Halterungsmaterial verfüllt ist;
• 7 eine Ausführungsform des Plattenkörpers bei einer Darstellung gemäß 5 bzw. 6, in welcher ein abweichender Lagenaufbau des Plattenkörpers gegenüber den Darstellungen in 5 und 6 vorgesehen ist;
• 8 eine weitere Ausführungsform des Plattenkörpers in einer Darstellung gemäß 7, wobei jedoch eine weitere Lage unterseitig angeordnet ist; und
• 9 eine Ausführungsform ausgehend von einer Darstellung gemäß 5, mit mehreren Rastfüßen.

The invention is explained below with reference to the accompanying drawing, which, however, merely represents exemplary embodiments. A part that is only explained with reference to one of the exemplary embodiments and is not replaced by another part in a further exemplary embodiment due to the particularity highlighted there, is thus also described for this further exemplary embodiment as an existing part in any case. The drawing shows:

• 1 a schematically shown kitchen furniture with a plate body located thereon in the form of a worktop;
• 2 the enlarged section along the line II - II in 1 through the plate body;
• 3 the enlargement of the area III with the associated magnifying glasses, relating to a first embodiment;
• 4th one of the 3 essentially corresponding illustration, relating to a second embodiment;
• 5 one of the 3 corresponding cross-sectional view with a further embodiment in which the edge strip has a locking foot;
• 6 a further embodiment based on a representation according to FIG 5 However, the recess is filled with a holding material that is independent of the edge strip;
• 7th an embodiment of the plate body in a representation according to 5 or. 6 , in which a different layer structure of the plate body compared to the representations in 5 and 6 is provided;
• 8th a further embodiment of the plate body in a representation according to 7th , but a further layer is arranged on the underside; and
• 9 an embodiment based on a representation according to 5 , with several locking feet.

Description of the embodiments

Using an exemplary embodiment, one of a plate body 1 manufactured countertop 2 of kitchen furniture 3 the invention is further explained.

A kitchen furniture 3 , see. 1 , such a countertop can 2 in the form of a plate body 1 exhibit. It can be kitchen furniture 3 act as it is used in a common household kitchen.

In addition, a panel body can also be used in other areas, not even limited to a kitchen 1 be provided in the manner described here.

The fat d of the plate body 1 can be used with a conventional kitchen worktop 2 in the range of about 38 mm. However, plate bodies can also be used 1 with a smaller thickness of, for example, (only) 13 mm use.

For other applications it can also be a significantly thicker plate body 1 act, for example, up to a thickness d of 100 mm. A preferred range of possible thicknesses d can therefore be between 16 mm and 100 mm.

The plate body 1 preferably has a multi-layer structure, as shown in more detail in FIG 2 is shown.

Regarding the plate body 1 or specifically based on the illustrated embodiment of the worktop 2 is an exterior surface in use 4th forming first layer 5 intended. Under the first layer 5 there is another, second layer 6 and if necessary - as in the exemplary embodiment using the worktop 2 shown - another, third layer as the lower end 7th .

The first location 5 , which in the illustrated embodiment is the work surface (outer surface 4th ) the worktop 2 represents, can, as is also preferred, have a stone-like character.

The second layer 6 can be formed, for example, from a mineral granulate according to the exemplary embodiment. These granules are connected to an independent body by means of a binding agent.

The first location 5 is with the second layer 6 preferably directly, only through an adhesive layer 8th connected, here provided contiguously. The adhesive layer 8th is also preferably only provided as such consisting of adhesive.

Between the first layer 5 and the second layer 6 can use an adhesive as an adhesive layer 8th be provided. This adhesive can be in the cured state, as it is in a finished worktop 2 For example, a three-dimensional surface structure of the second layer is given 6 tightly embrace.

The possibly provided lower, third layer 7th can be a comparatively thin layer, which can further be formed, for example, as an underlay layer. For example, a resin-impregnated fabric can be provided in this regard.

The lower, third layer 7th can by a further - not shown in the drawings - adhesive layer with the second layer 6 be connected.

An edge area 9 , for example a longitudinal edge area 10 and / or a narrow edge area 11 of the plate body 1 - here the worktop 2 - is preferred with an edge strip 12 covered. In the case of a countertop 2 can this edge area 9 the longitudinal edge area pointing into the room, for example the kitchen area 10 the countertop 2 his.

The edging strip 12 can, as is also preferred, consist of a plastic material, for example polypropylene, can furthermore be produced, for example, as an extruded profile. The edge strip can also consist of wood or metal. To the extent that it is flexible, it is also preferred that it can be kept available as roll goods.

The edging strip 12 can also be limited to the length of the edge area to be covered 9 available cut to length.

The arrangement of the edging 12 on the plate body 1 preferably takes place as a result of gluing. The related adhesive layer 13 is also here preferably formed only as such consisting of adhesive.

With reference to a cross section through the plate body 1 as shown in 3 results at right angles and with the formation of the plate body 1 as a countertop 2 in the use position, a connecting surface preferably essentially in a vertical orientation 14th of the plate body 1 at the edge 9 , to connect the edge strip 12 with the plate body 1 .

The interface 14th preferably extends over the entire thickness d of the plate body 1 , so proceeding from an outer, the outer surface 4th delimiting edge 15th the first layer 5 over the inner edge 16 the first layer 5 out to a lower outer marginal edge 17th the second layer 6 or with a corresponding arrangement of the third layer 7th as also shown. The connection area results in detail 14th from the to the edge area 9 open end faces of the individual layers, especially the first layer 5 and the second layer 6 , possibly also the third layer 7th .

The related, part of the interface 14th forming face of the first layer 5 can offer an essentially smooth, unstructured or poorly structured surface, while the second layer 6 , as also with regard to the adhesive connection of the first layer 5 with the second layer 6 described, to the interface 14th a three-dimensional surface structure due to the formation of the second layer 6 in particular from a bound mineral granulate, can offer.

The adhesive of this further adhesive layer 13 can also be used to connect the edge strip in this area 12 with the plate body 1 a firm connection in the course of curing with enter into this three-dimensional surface structure.

The adhesive layer 13 , and possibly also the adhesive layer 8th , can be given very thin. It can also be given that the edge strip 12 and the locations 5 and 6 - possibly also 7th - In the above areas, in particular with regard to the mineral granules of the second layer 6 , lie directly next to one another and there is no or only a very thin layer of adhesive in between, which is then in the further surface (connecting surface 14th ) can be given thickened again. Thus, the thickness of the adhesive layer 13 between, for example, 2 mm and 3 mm and virtually no thickness, such as 0.1 mm or 0.2 mm, over the joint surface 14th be different (see also magnifying glass-like details in 3 ).

The edging strip 12 preferably extends over the entire thickness d of the plate body 1 , accordingly over the entire connecting surface 14th , with one perpendicular to the joint surface 14th considered width b which is a multiple of the thickness of the adhesive layer viewed in the same direction 13 may correspond, for example, at least three times up to 100 times, further for example about 20 times.

As a result of the preferably separate production of the edge strip 12 , for example in the extrusion process, this can be applied to the surface design of the worktop 2 Be designed to be optically adapted or also offer a color contrast, for example.

By also covering the edge of the first, the outer surface 4th offering location 5 through the edging 12 is the otherwise shock-sensitive outer edge 15th the first layer 5 protected.

The outside surface 4th the first layer 5 can be at the same level in an outwardly facing edge surface of the edge strip in the arrangement state 12 pass over.

According to the illustrated embodiment, the can also be outward, in the case of a worktop 2 in particular edge section pointing upwards 18th For example, be provided with a bevel, correspondingly formed by a sloping surface (cf. 3 ). Also the edge section pointing downwards in this regard 18th can be designed in this way. As an alternative to a bevel, the edge section can also be rounded 18th be given.

Overall, the gluing of the edge strip 12 along the interface 14th the countertop 2 be made based on a laminating process. In this context, thermal lamination can alternatively also be carried out, correspondingly lamination under the influence of heat.

According to the in 4th schematically illustrated embodiment also, for example, due to corresponding laser exposure in the area of the connecting surface 14th in the course of the lamination process that of the connecting surface 14th of the plate body 1 facing surface of the edge strip 12 be melted, so that the plastic material of the edge strip 12 itself as an adhesive, possibly with the three-dimensional surface structure, in particular the second layer 6 clawing, serves. As with a conventional gluing process, the edge strip is preferred 12 towards the interface 14th pressurized.

A laser application for softening can also be provided if, in contrast to the exemplary embodiment described above, a separate adhesive layer is applied to the edge strip. As explained further above, this can also be an adhesive layer that differs across the width.

5 shows one in terms of 4th Corresponding cross-sectional representation with an edge strip 12 which, as in the exemplary embodiment, preferably have a central locking foot in relation to the height extension given in the installed state 19th disposes. The locking foot 19th can in a corresponding groove-like recess 20th of the plate body. Due to barb-like formations on the locking foot 19th a very substantial, in some cases also sufficient, mechanical attachment can result. However, it is preferred that even with such a configuration, at least in the area of the locking foot 19th an additional gluing with the plate body is made.

The (mechanical) attachment of the edging strip 12 in this embodiment is preferably carried out in the region of the second layer 6 . This can be done in the second position 6 starting from the interface 14th based on a continuous strip-like design of the locking foot 19th a groove can be formed, in particular milled, into which the locking foot 19th is pressed in with its radial, barb-like projections. When the locking foot 19th as a single or multiple, also in a longitudinal direction of the edge strip 12 free-standing locking foot 19th is formed, can alternatively correspondingly individual bores (only) in the plate body, preferably the second layer 6 be trained.

In reference to 6 an embodiment is shown in which the recess 20th preferably completely with a holding material formed independently of the edge strip in the form of a filling compound 21st is filled. The in 6 reproduced embodiment fills the filling compound 21st the recess 20th practically completely. The filling compound 21st forms more preferably, as in 6 also shown, one with the interface 14th roughly aligned edge in the cross-sectional view.

You can also fill in several dimensions 21st be provided over the height, in which case a plurality of grooves or recesses then also correspondingly 20th are provided.

The filling compound 21st can initially after the plate body, optionally by milling with the recess 20th is provided into the recess 20th be introduced and in a still liquid or at least sticky state can then also - already - the edge strip 12 be applied. Here the edge strip 12 , but this also applies to all embodiments, over the thickness of the plate body or the height of the connecting surface 14th have different adhesives, these adhesives, as already explained above, not necessary on the edge strip 12 are first applied before this is to rest on the connection surface 14th but they can just as easily be placed on the interface 14th be applied or partially on the connection surface 14th and partly on the edge strip 12 .

Alternatively, a fast-curing filler compound can also be used 21st be used, which is ground flush after hardening and then part of an edge surface of the plate body 1 that with the edging strip 12 is covered, forms. The edging strip 12 is then - also - connected to the hardened filling compound, in particular adhesively connected.

In the area of the filling compound 21st it is also possible, if necessary, to dispense with a - further - adhesive completely if the filling compound 21st as such provides the desired bondability.

With regard to the different adhesives, it can in particular be provided that in one outside the recess 20th given area of the connection surface 14th one or more areas are provided with faster hardening adhesive than the adhesive or the filling compound 21st in the area of the recess 20th he brings. Thus, an advantageously favorable material for the filling compound can be used here 21st be selected, which is slower in terms of setting of the filling compound or the adhesive, but the desired connection and clawing with the panel material in the area of the recess 20th yields cheaper.

The filling compound is preferably a plastic compound. It can be, for example, a casting compound, for example a polyurethane casting compound. More specifically, it can be a polyurethane foam compound. In this regard, very different volume weights are possible. A preferred range is between 1000 kg / m ³ and 1400 kg / m ³ . However, values outside this range are also possible, for example with regard to the lower value up to 500 kg / m ³ or even less and with regard to the upper value up to 2000 kg / m ³ or even more.

As further by the dashed line in 6 displayed, the recess 20th also in the sense of a recess 20a be formed, which is thus depicted as an undercut in this cross-sectional view. This means that even better mechanical clawing can be achieved.

This embodiment is also in accordance with the design of the edge strip with the locking foot 5 easily possible. In this case, when a corresponding recess is formed with an undercut, it is also preferred that the locking foot 19th in its cross-section, as it is in 5 is shown, is adapted to this undercut, due to flexible lateral extensions, it can nevertheless be introduced inexpensively.

In the embodiment of 7th in view of the modification described here, both for the embodiment of the 5 as for the embodiment of the 6 What is important is that below the first layer 5 and / or a significantly thicker further layer between the counter-pull and the carrier layer 8th or 8a, which is more favorable in terms of strength than the second layer 6 . The further layer 8a can in particular have an increased tensile strength. It can consist entirely of an adhesive-like material, but it can also, in addition to the adhesive layer 8th , consist of a rigid foam such as acrylate-based or a solid material. It can also consist of a material, as above for the filling compound 21st described.

The layer 8a can directly adhere to the layer below it below the layer above, in the exemplary embodiment, that is to say to the second layer 6 or the first layer 5 , provide. The attachment can also be made on one or both sides by means of a further additional layer of adhesive 8th be achieved.

In the embodiment of 8th the additional layer 8a is arranged on the underside. With regard to a sequence from above, starting from the first layer 5 , it is in front of the third layer 7th , so here the underlay. As shown, it is arranged immediately in front of the third layer.

In the embodiment of 9 can be seen from the thickness of the panel body on the edge strip 12 two locking feet 19th - one below the other as seen across the thickness in the cross section shown - formed. There are correspondingly two corresponding recesses in the plate body, in the illustrated embodiment in the second position 6 , educated.

The illustrated embodiments are not to be seen as restrictive. They can also be provided in combination with one another.

So the mere gluing of the edge strip 12 according to e.g. 3 also with a sequence of layers according to 7th or 8th be provided combined. The design of a filling compound 21st according to the embodiment of 6 can also in terms of the embodiment of 9 be provided several times over the thickness of the plate body. The inwardly widening recess can then also be used 20a be combined.

The designation of a layer as a second layer or third layer etc. does not necessarily mean that the second layer is arranged directly under the first layer and / or that the third layer is arranged directly under the second layer, although this is also the case in some embodiments can be. In other embodiments, for example, one or more further layers can be arranged between the first and the second layer and / or between the third and the second layer. Last but not least, one or more further layers can also be arranged below the third layer.

The above explanations serve to explain the inventions covered by the application as a whole, which at least further develop the state of the art at least through the following combinations of features, whereby two, more or all of these combinations of features can also be combined, namely:

A plate body 1 , which is characterized in that an edge area 9 of the plate body 1 with an edging strip 12 is covered that the edge strip 12 starting from the outer edge 15th of the outer surface 4th educational situation 5 about the thickness d of the plate body 1 extends, whereby it is also in overlap with the beam, and that the edge strip 12 consists of a polymer plastic, metal or wood material.

A plate body 1 , which is characterized in that the edge strip 12 consists of a plastic material.

A plate body 1 , which is characterized in that the edge strip 12 at one in a cross-section perpendicular to the outer surface 4th and continuously straight connecting surface 14th of the plate body 1 is appropriate.

A plate body 1 , which is characterized in that a recess open towards the edge strip is formed in the panel body below the first layer.

A plate body 1 , which is characterized in that a fourth and optionally further layer is formed between the first and second layer, for example based on a polyurethane polymer or a foam.

Plate body 1 , which is characterized in that a mounting material is received in the recess, wherein, preferably, the mounting material is formed by a locking foot of the edge strip and / or that the mounting material is formed independently of the edge strip, wherein, more preferably, the mounting material is approximately forms flush with a connecting surface extending substantially at right angles to the outer surface.

A plate body 1 , which is characterized in that the edge strip 12 in the interface 14th about the thickness d with the plate body 1 is glued.

A plate body 1 , which is characterized by being across the thickness d of the plate body 1 Different adhesives are used in the connection surface to connect the edge strip to the panel body.

A plate body 1 , which is characterized in that the bonding is based on a lamination process.

All of the features disclosed are essential to the invention (individually, but also in combination with one another). The disclosure of the application hereby also fully includes the disclosure content of the associated / attached priority documents (copy of the previous application), also for the purpose of including features of these documents in the claims of the present application. The subclaims characterize, even without the features of a referenced claim, with their features independent inventive developments of the prior art, in particular to make divisional applications on the basis of these claims. The invention specified in each claim can additionally have one or more of the features provided in the above description, in particular provided with reference numbers and / or specified in the list of reference numbers. The invention also relates to design forms in which some of the features mentioned in the above description are not implemented, in particular if they are recognizable for the respective purpose or can be replaced by other technically equivalent means.

List of reference symbols

1

Plate body

2

Countertop

3

kitchen furniture

4th

Exterior surface

5

first position

6th

second layer

7th

third layer

8th

Adhesive layer

9

Edge area

10

Longitudinal edge area

11

Narrow edge area

12

Edging

13

Adhesive layer

14th

Interface

15th

outer edge

16

inner edge

17th

outer edge

18th

Edge section

19th

Locking foot

20th

Recess

20a

Recess

21st

Filling size

b

width

d

thickness

QUOTES INCLUDED IN THE DESCRIPTION

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

Patent literature cited

• WO 9616089 A1 [0036]

Claims (10)

Plate body (1) with a multilayer structure, a first layer (5), which in use forms an outer surface (4), consists of a ceramic material, natural stone, a quartz composite or some other stone-like material and a second and a third layer and possibly further layers are provided, which are arranged under the first layer (5), the second layer consisting of a mineral granulate bonded to form a body by means of a binding agent, a foam or some other material compared to the first Layer of low tensile strength consists, and the third layer can be designed as a joist, the first layer (5) further having an outer peripheral edge (15) and an inner peripheral edge (16) and the plate body (8) having a thickness (d), thereby characterized in that an edge region (9) of the plate body (1) is covered with an edge strip (12), that the edge strip (12) extends out Starting from the outer marginal edge (15) of the outer surface (4) forming the first layer (5) extends over the one thickness (d) of the panel body (1), whereby it is also in overlap, and that the edge strip (12) consists of one polymer plastic, metal or wood-based material. Plate body (1) after Claim 1 , characterized in that the edge strip (12) consists of a plastic material. Panel body (1) according to one of the preceding claims, characterized in that the edge strip (12) is attached to a connecting surface (14) of the panel body (1) which is perpendicular to the outer surface (4) and continuously straight in a cross section. Plate body (1) according to one of the Claims 1 or 2 , characterized in that a recess open towards the edge strip is formed in the panel body below the first layer. Panel body (1) according to one of the preceding claims, characterized in that a fourth and optionally further layer is formed between the first and second layer, for example based on a polyurethane polymer or a foam. Plate body (1) according to one of the Claims 4 or 5 , characterized in that a mounting material is received in the recess, wherein, preferably, the mounting material is formed by a locking foot of the edge strip, and / or that the mounting material is formed independently of the edge strip, wherein, more preferably, the mounting material is approximately forms flush with a connecting surface extending substantially at right angles to the outer surface. Panel body (1) according to one of the preceding claims, characterized in that the edge strip (12) is glued to the panel body (1) in the connecting surface (14) over the thickness (d). Panel body (1) according to one of the preceding claims, characterized in that different adhesives are used over the thickness (d) of the panel body (1) in the connecting surface to connect the edge strip to the panel body. Panel body (1) according to one of the preceding claims, characterized in that the gluing is carried out based on a lamination process. Plate body (1), characterized by one or more of the characterizing features of one of the preceding claims.

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