HOLDING SYSTEM AND COVER SYSTEM

Description

[0001] The present invention relates to a holding system and a covering system for use on buildings, and in particular on a window sill or a masonry cornice.

[0002] In the prior art, fastening systems for surface elements or cover units, particularly window sill systems or cornice covers, are known. In these systems, the structures and retaining elements that laterally support a window sill are embedded in the plaster in the area of ​​the window sill, thus permanently and irremovably bonded to the masonry. In this state, the window sill is usually already installed in the respective fastening system, and therefore, after completion of the plastering work, the window sill can no longer be removed from the building. This makes it difficult, firstly, to replace damaged or weathered components of a window sill system. Secondly, it complicates the installation of the window sill system, as a specific sequence must be followed, and there is little flexibility to accommodate unevenness in the building structure, since many of the components must be pre-assembled.Cover systems that utilize mounting mechanisms are already known. For example, sheet metal window sill covers are commonly used to protect the underlying masonry from the elements. However, it has become apparent that improvements are needed, particularly given the limited surface area available on a building for decorative or technical applications. Currently known cover systems are mostly limited to their function as purely protective elements.

[0003] GB 1 293 015 A discloses a window sill system for use on buildings, while BE 1 026 395 A1 and DE 13 01887 B describe further properties of such systems. DE 20 2014 101 903 U1 also discloses features of a window sill termination or a window sill arrangement.

[0004] The object of the present invention is to provide a modular and demountable holding system for securing a cover unit or surface element. Furthermore, the object of the present invention is to provide a cover system that utilizes and enhances the advantages of the holding system and allows for the multifunctional use of various decorative or technical systems, while still ensuring the appropriate protective function for underlying building areas, such as window sills or masonry.

[0005] This problem is solved with a holding system according to claim 1 and a covering system according to claim 10. Further features of the solution according to the invention will become apparent from the dependent claims.

[0006] According to the invention, the holding system for securing a surface element, which is preferably designed as a cover unit, comprises an edge unit and a fastening unit, wherein the edge unit has a clamping section into which the surface element can be inserted, wherein the clamping section has at least a first clamping element and a second clamping element, wherein the first and the second clamping element are firmly connected to the clamping section and can be brought into contact with the surface element in such a way that they exert a force acting transversely to a surface plane on the surface element, such that the surface element is at least frictionally secured to the clamping section, wherein the edge unit has a fastening section on which the fastening unit can be brought into positive engagement, wherein the fastening unit can be fixed to a building in order to secure the edge unit against displacement relative to the building.The holding system thus comprises two basic components: an edge unit and a fastening unit. The edge unit, in particular, has at least one receiving geometry, or at least one clamping section, into which a surface element can be inserted and secured, at least by frictional engagement. The fastening unit is the part that can be attached to a building, especially to the building's masonry, and secures the edge unit against displacement relative to the building by means of a positive fit. Preferably, the surface element is defined as a cover unit. A cover unit within the meaning of the present invention is advantageously a surface element with a base area and a holding area.With regard to the attachment to the holding system, in particular the fastening unit, the terms surface element and cover unit are used synonymously, since the corresponding engagement geometry of a surface element and a cover unit is identical. According to the invention, the connection between the fastening unit and the edge unit allows the edge unit to pivot about an axis of rotation. In this way, the inclination of the surface element can be variably adjusted, particularly in the area of ​​a window sill, and it is also possible to access areas of the building located below the surface element. Furthermore, the holding system allows easy access from below to a cover unit attached to it, enabling maintenance of the insert unit.In this way, the advantages of using the holding system are particularly realized when using a cover unit with an insert unit. The surface element is preferably a sheet-like component made of metal or plastic, which extends over a surface, i.e., mainly and predominantly along a plane. In a particularly preferred embodiment, the surface element is or comprises a window sill, which has a main surface extending substantially parallel to the plane and a beveled or angled surface compared to the main surface, which, however, has a significantly shorter extent perpendicular to the plane than the extent within the plane. Such window sills are known from the prior art.The edge unit is advantageously a multi-part unit consisting of various components and has at least one clamping section into which a surface element can be inserted. Advantageously, a certain degree of displacement of the surface element along the surface plane relative to the edge unit is ensured, in order to compensate for thermal expansion of the surface element. This relative movement can occur between the surface element and the edge unit or within the edge unit between different components of the edge unit, whereby one of these components is fixed to the surface element and, in particular, is not displaced relative to the surface element.In a particularly simplified embodiment of the invention, the edge unit can be formed in one piece, with the clamping section being attached to the surface element together with the edge unit, particularly laterally, and clamped accordingly, and the edge unit being fixed to the building via the fastening unit. The fastening section of the edge unit is preferably a web onto which an entry geometry of the fastening unit can be engaged, thereby creating a positive-locking engagement between the fastening unit and the fastening section of the edge unit. Preferably, the fastening section has a portion extending parallel to the surface plane in order to be able to select the position in which the fastening unit is fixed to the fastening section, in particular to compensate for unevenness in the building.The holding system according to the invention thus allows a surface element to be detachably fixed, in particular via a force-fit connection to a frame unit, and this in turn to be positively locked to a building. Both the positive-fit connection between the fastening unit and the edge unit and the force-fit connection between the surface element and the edge unit are designed to be detachable, so that the holding system allows disassembly in a manner almost as simple as the assembly of a surface element to a building.

[0007] According to the invention, the edge unit comprises a clamping element and an edge element, wherein the edge element has the fastening section and the clamping element has the clamping section, the clamping element being slid into the edge element along an insertion direction such that an edge-side retaining section on the edge element engages with a clamp-side retaining section on the clamping element in at least a force-fit manner, with a positive locking action occurring between the clamp-side and edge-side retaining sections in the direction transverse to the plane of the surface. The division of the edge unit into a clamping element and an edge element particularly simplifies the assembly and disassembly of the holding system. Thus, the edge element, which has the fastening section, can be fixed to the building via the fastening unit, while the clamping element, which has the clamping section, can first be fixed to the surface element.Following this pre-assembly, the clamping element can be inserted into the edge section along an insertion direction. A specially provided clamping-side retaining section and an edge-side retaining section engage in such a way that the edge section and the clamping element are secured to one another, at least by friction, and preferably also by positive locking. The positive locking between the clamping element and the edge section, in particular between the clamping-side and edge-side retaining sections, acts transversely, and especially preferably perpendicularly, to the surface plane. The frictional engagement of the edge-side retaining section on the clamping-side retaining section preferably acts at least along the insertion direction, but advantageously also transversely or perpendicularly to the insertion direction. In this direction, the longitudinal expansion of the surface element can be compensated for, and small relative movements of the clamping-side retaining section relative to the edge-side retaining section are possible.In this embodiment, the edge unit itself compensates for any expansion of the surface element by comprising two parts that can be moved slightly relative to each other: the edge part and the clamping part.

[0008] Preferably, the edge part and the clamping part are designed essentially as profile bodies with a constant cross-section along the insertion direction. Aluminum extrusion profiles are particularly preferred here, as they are especially easy and cost-effective to manufacture and simultaneously exhibit particularly high strength values, especially a high modulus of elasticity, which facilitates the application of clamping forces. These material properties allow for a secure clamping connection between the edge part and the clamping part. In a preferred embodiment, at least one of the elements, the edge part or the clamping part, is designed as an aluminum profile, while the other part is, for example, made of plastic. In this way, the weight of the holding system can be reduced, and the lower manufacturing costs of plastic compared to aluminum can be utilized.

[0009] Advantageously, at least one retaining pin is provided on the clamping element and / or the edge element, which is made of an elastically deformable plastic, wherein the clamping element and the edge element are made of a stronger material, in particular with a higher modulus of elasticity, than the retaining pin. Particularly preferred, to support the force-fit connection and simultaneously dampen body vibrations and sound between the clamping element and the edge element, is at least one retaining pin that is positively fixed to one of the elements and engages the other element over a surface area to establish a force-fit or friction-fit connection with that other part. The retaining pin is preferably made of an elastically deformable plastic, such as rubber or silicone.In this context, rubber has proven to be particularly advantageous, since the static friction of rubber on a metal or other plastic body is particularly high, thus enabling a secure, force-fit connection between the clamping part and the edge part via the retaining mandrel made of rubber.

[0010] Preferably, the retaining mandrel is inserted into a recess in the edge part or the clamping part and has at least one head section that extends further than the recess. The retaining mandrel is advantageously mushroom-shaped, with a section of smaller cross-section being inserted into a recess in the edge part or the clamping part and positively locked in place, while the head section has a significantly larger cross-section to provide a large contact area between the head section and the adjacent component, edge part or clamping part. The extension of the head section is preferably at least 2 to 8 times, advantageously 1.5 to 4 times, and particularly preferably approximately 1.5 to 3 times the extension of the section of the retaining mandrel that is arranged in the recess in the clamping part or the edge part.

[0011] A particularly preferred arrangement is a plurality of retaining pins distributed along the insertion direction on the clamping-side retaining section. The retaining pins distributed on the clamping-side retaining section thus enable a uniform load distribution from the edge-side retaining section to the clamping-side retaining section and, furthermore, ensure a sufficiently large contact area between the retaining pins and the edge-side retaining section. In a first preferred embodiment, at least two retaining pins are arranged on the clamping-side retaining section. The greater the number of retaining pins, the more complex the design of the retaining system becomes and the more stable the force-fit or friction-fit connection of the edge part to the clamping part.An arrangement of five to ten retaining pins on the clamping-side retaining section has therefore proven to be a favorable compromise between a still simple construction and a high strength of the connection between the edge part and the clamping part.

[0012] Advantageously, the first and second clamping elements are designed as projections on the clamping part and engage an edge of the surface element between them. The first and second clamping elements are advantageously formed as integral projections on the clamping part, whereby the surface element can be inserted into the clamping section formed by the first and second clamping elements with its outer lateral edge and is held there. This particularly simple design allows the clamping part to be manufactured as an extruded component. Furthermore, the ability to easily insert the surface element into the clamping section simplifies the manufacturing and assembly of the holding system.

[0013] Preferably, the holding force acting between the clamping element and the surface element parallel to the surface plane is greater than the holding force acting between the clamping element and the edge element parallel to the surface plane. In particular, to prevent the clamping element from shifting relative to the surface element due to thermal expansion of the surface element, the holding force acting between the clamping element and the surface element is greater than the holding force acting within the edge unit between the edge element and the clamping element. In this way, and especially preferably with the additional support of the retaining pins, the change in length occurring due to thermal expansion of the surface element can be converted into a relative movement of the clamping element relative to the edge element, while the surface element remains firmly connected to the clamping element.The simple option of pre-assembling the clamping element onto the surface element allows for the application of higher assembly forces than when inserting the clamping element into the edge piece. In particular, the clamping element can preferably be hammered laterally onto the surface element, resulting in a particularly stable yet easily manufactured force-fit connection.

[0014] Preferably, the edge unit, in particular the edge part, is designed for a detachable, form-fitting connection to a base unit, wherein the base unit is fixed to the building and extends essentially transversely to the edge unit. The base unit is another body, advantageously profile-shaped, which, like the fastening unit, can be fixed to or is fixed to the building. In the case of use of the holding system on a window or a windowsill, the base unit is thus fixed directly below the window frame to the masonry of the building and supports the edge unit at its distal end, which is spaced apart from the fastening unit, thereby preventing the edge unit from pivoting about the axis defined by the form-fitting connection with the fastening unit.In particular, the base unit is designed for the positive locking of the edge unit, which is achieved especially by insertable clip geometries or by snapping the edge unit into place while it is rotated on the base unit. Preferably, at least one groove can be provided into which a corresponding engagement geometry of the edge unit engages.

[0015] Advantageously, the edge piece has a groove designed for positive engagement with a corresponding projection on the base unit. The groove on the edge piece is preferably located on the top side, i.e., on the side of the edge piece facing the surface element. Using the groove, the edge piece can be pivoted around an axis defined by the groove and thus locked into place on the base unit. The edge piece can then be connected to the building via the fastening unit at the mounting section of the edge unit, which is spaced apart from the groove.

[0016] In one embodiment of a covering system not belonging to the invention, the covering system comprises a covering unit as a surface element and at least one insert unit, wherein the covering unit has a base area and a retention area, wherein an upper surface of the base area lies substantially in a base plane and extends along the base plane, and wherein the retaining surface extends transversely to the base plane and / or is arranged along an orthogonal plane offset from the upper surface, the retaining surface being designed to support the insert unit against the covering unit. This covering system comprises a covering unit which forms a retention area designed to receive an insert unit and to fix it substantially against displacement relative to the covering unit, and thus indirectly also relative to the building or masonry.The cover unit is advantageously designed, at least in part, as a window sill or cover element for a masonry cornice, such as a roof terrace surround. Essentially, the cover unit is formed as a sheet-metal component with a base that extends essentially parallel to a ground plane. A retaining area is incorporated into or mounted on this cover unit, forming at least one retaining surface. This retaining surface is designed to support an insert unit in at least one direction relative to the cover unit. Advantageously, multiple retaining surfaces are provided to support the insert unit in several directions relative to the cover unit.The geometry of the retaining surfaces is advantageously adapted to the outer geometry of the insert unit, so that an insert unit that is essentially triangular, for example, is also supported by a triangular arrangement of retaining surfaces. In this exemplary embodiment, an extension essentially transverse to the base plane is defined not only as a perpendicular or orthogonal extension to the base plane, but also includes extensions that are angled at 55° to 110° relative to the base plane. The rationale for this is that, particularly when the base of the cover unit is oriented at an angle relative to a horizontal plane, as is common with window sills, the retaining area should nevertheless allow for an essentially horizontal fixation of the insert unit within the cover system.For example, it is preferred that the holding area in the cover unit is designed such that an insert unit can be inserted vertically into the holding area, even though the cover unit has a base area that extends obliquely relative to the horizontal and thus also defines a base plane oriented obliquely to the horizontal. A substantially horizontal arrangement is particularly advantageous for the use of an insert unit that serves as a flower pot or storage container. It is understood that a cover unit can also have a multitude of holding areas in which a multitude of different insert units can be arranged and secured.

[0017] In an exemplary embodiment not belonging to the invention, the covering system is designed to cover a section of masonry in a building and comprises a surface element, preferably configured as a covering unit. The covering system is held by a previously described retaining system, which has two edge units and a base unit arranged between the edge units. The covering system is particularly useful for covering window reveals or sills, or, for example, for covering balustrades or masonry projections, such as those found in roof terraces. The basic component of the covering system is at least one retaining system by means of which a surface element is fixed by two edge units.It is understood that, in extending this basic concept, an edge unit can be provided which can define a first surface element on one side and a second surface element on the side opposite the first. In this context, such an edge unit is called a butt connector, since it connects and defines the butt joints, i.e., the lateral edges, of the surface elements. In this exemplary embodiment, an edge unit thus advantageously has an edge part and two clamping parts fixed on both sides of the edge part, each clamping part engaging with one of the surface elements in a force-fit manner.

[0018] In this exemplary embodiment, a plurality of surface elements, which are advantageously designed as cover units, are attached to the building by a plurality of edge units, wherein a base unit is provided which can be brought into positive engagement with edge units on both sides. In the embodiment in which, in particular, a wall projection or a balustrade is to be covered by a cover system, it is preferred that a base unit is provided between the two mutually inclined surfaces of the cover system, to which a plurality of edge units can be attached, and to these, in turn, a plurality of surface elements can be fixed.

[0019] In an exemplary embodiment not belonging to the invention, the insert unit comprises a solar panel. It is understood that a single insert unit can also comprise a plurality of solar panels, which are joined together to form a single electrical conductor for the energy generated. The use of insert units for generating electrical energy from solar power is particularly advantageous when the cover unit is attached to a holding or fastening system that facilitates pivoting the assembly of insert unit and cover unit in such a way that the underside of the insert unit is also accessible and, in particular, the electrical wiring can be easily installed.In alternative embodiments or in addition to one or more insert units equipped with solar panels, insert units designed as plant containers, as rainwater collection containers, as storage containers, as seat cushions or for other applications can be used.

[0020] In an exemplary embodiment not belonging to the invention, the insert unit can be pre-assembled onto the cover unit, and the assembly of insert unit and cover unit can be detachably fixed to a building. In particular, to reduce assembly effort on a construction site, the assembly of insert unit and cover unit can be manufactured as a pre-assembled unit. In this case, a positive-locking connection of the two units, already provided with a suitable seal between the contact surfaces on the cover unit and the insert unit, is particularly suitable. Within the scope of the invention, it is therefore particularly advantageous if the cover unit, in a particularly preferred embodiment the window sill or the cover system for a masonry cornice, is attached to the building by means of a detachable fixing.For this purpose, a holding system, also called a fastening system, is used in particular, which allows the cover unit to be pivoted and allows the cover unit to be removed from the building even after the plastering has been completed at a later time, especially in order to be able to carry out maintenance work on the insert unit.

[0021] In an exemplary embodiment not belonging to the invention, the retaining area forms a clearance fit with the insert unit parallel to the base plane to compensate for thermal expansion parallel to the base plane. Preferably, when using insert units made of a different material than the cover unit, the retaining area forms a corresponding clearance fit with the insert unit. This prevents unwanted stresses from occurring in the material of the cover unit or the insert unit. Since the thermal expansion of the cover unit occurs essentially along the base plane defined by the base area of ​​the cover unit, it is preferred that the clearance fit, essentially parallel to the base plane, allows a slight displacement of the cover unit relative to the insert unit.

[0022] In an exemplary embodiment not belonging to the invention, the retaining area is formed on a section integrally with the base of the cover unit. This eliminates the need for additional attachments to the cover unit, with the retaining area being designed, in particular, as a locally formed or bent area of ​​the cover unit material. Thus, in a first preferred embodiment, the retaining area can be provided as local recesses with upwardly or downwardly bent edges on the cover unit, these edges allowing for secure guidance and positive locking of the insert unit.

[0023] In an exemplary embodiment not belonging to the invention, the cover unit has at least one recess in the holding area, which is incorporated into the cover unit transversely to the base plane or is formed on the cover unit, wherein the recess is dimensioned such that the insert unit can be inserted into the recess with a clearance fit. Simple fixation of the insert unit to the cover unit can be achieved by forming the holding area as a recess in the material of the cover unit. In this way, no additional elements need to be arranged and fixed to the cover unit; the geometry of the recess alone is sufficient to fix the insert unit positively to the cover unit with a clearance fit.

[0024] In an exemplary embodiment not part of the invention, the recess includes a cutout through which the insert partially projects. This arrangement allows the insert to be accessed from below, particularly when using a retaining system that permits pivoting of the cover unit, and thus does not need to be completely removed from the cover unit, especially for assembly or maintenance purposes. Furthermore, the cutout in the retaining area allows for material and weight savings. It is preferred that the insert completely fills the cutout in the cover unit and, in particular, that a suitable seal prevents driving rain or other weather influences from penetrating the area below the cover system through the connection between the cover unit and the insert.

[0025] In an exemplary embodiment not belonging to the invention, the recess is designed as a local depression in the retaining area of ​​the cover unit, which is shaped like a trough. A trough-shaped design of the retaining area, configured as a recess, has the advantage that the cover unit can continue to completely protect the areas beneath it from the elements, particularly regardless of the presence of an insert unit or the corresponding tightness of the connection between the insert unit and the cover unit.

[0026] In an exemplary embodiment not belonging to the invention, at least one of the holding areas can be formed on at least one, and advantageously on a plurality of, holding elements, which are fixed or definable on the base area. The use of holding elements to form the holding areas has the advantage that the holding area can be adapted more flexibly to the outer geometry of the insert unit without the cover unit itself having to have a pre-defined geometry for this purpose. The holding elements can preferably function as adapter elements, which provide the appropriate, adapted holding geometry depending on the insert unit used.

[0027] In an exemplary embodiment not belonging to the invention, the insert unit has an upper boundary surface which is essentially flush with the top surface of the base. Arranging the insert unit within the cover unit such that the top surfaces of both units are flush allows for a particularly weather-resistant design of the cover system. This prevents, in particular, the accumulation of liquid on protruding edges of the cover unit or in any depressions that may form, which can cause damage to the cover system, especially during frost or due to moss growth. In a preferred case, a slight overhang of the top surface of the insert unit by 1–5 mm above the cover unit can also be considered a flush arrangement and thus be encompassed by the invention.

[0028] According to the invention, a cover system is provided which is designed for use on a windowsill or a masonry ledge, comprising a cover unit and an insert unit, wherein the cover unit has a base area and a recess, wherein the insert unit is arranged and held, or fixed, on a building component or masonry, wherein the cover unit can be brought into a closed position by a holding system as described above and is arranged in the recess such that access to the insert unit is unobstructed, wherein a seal is arranged between the cover unit and the insert unit and is clamped in the closed position of the cover unit, and / or a drainage system is provided which drains water in a controlled manner. Together with the previously described embodiment of the cover system, this one comprises a cover unit and an insert unit.A key advantage is that the cover unit is not pre-mounted on the insert unit, nor is it designed to completely secure the insert unit against displacement relative to the cover unit. Instead, the insert unit itself is positioned and fixed to the building or masonry. The cover unit has a recess designed to be positioned relative to the insert unit in its closed position (the final insertion position) such that the insert unit is accessible through the recess. In a preferred embodiment, the insert unit is mounted in a corresponding recess in the masonry and is held in this position by the cover unit when it is closed.A seal is required between the cover unit and the insert unit to prevent weathering from penetrating between them and the masonry. In addition to or as an alternative to such a seal, it may also be preferable to have a drainage system on the cover unit and / or the masonry for controlled water runoff. This drainage system preferably has a channel-like geometry that directs water parallel to the ground plane towards the front edge of the masonry or the front edge of the cover unit.

[0029] Advantageously, the cover unit is detachably fixed to the building component or masonry, with a retaining system provided which is fixed to the building component or masonry and indirectly secures the cover unit to the building component or masonry in such a way that the cover unit can be moved into an open and a closed position. Particularly preferably, the retaining system is designed to allow the cover unit to pivot relative to the building or masonry. In this way, the cover unit can be pre-assembled and fixed to the building, but access to the insert unit and its insertion or removal is still ensured by pivoting it into an open position. Advantageously, in the closed position, the cover unit overlaps the insert unit in such a way that the insert unit is securely held to the building.

[0030] Further advantages and features of preferred embodiments of the invention will become apparent from the following description with reference to the accompanying figures. These show: Fig. 1 a schematic view of the basic principle of a holding system according to the invention; Fig. 2 a partially cutaway perspective view of a preferred embodiment of the holding system according to the invention; Fig. 3 another partially cutaway view of a preferred embodiment of the holding system according to the invention; Fig. 4 another cutaway view of a preferred embodiment of the holding system according to the invention; Fig. 5 another cutaway and perspective view of the holding system according to the invention; Fig. 6 a detailed view of an embodiment of the holding system according to the invention; Fig. 7 a perspective view of a preferred embodiment of a cover system; Fig. 8 a detailed view of the cover system of Fig. 7Fig. 9 a perspective view of a cover system not according to the invention; Fig. 10 a perspective view of a cover unit not according to the invention; Fig. 11 a sectional view of a preferred embodiment of the cover system; Fig. 12 a sectional view of another preferred embodiment of the cover system; Fig. 13 a sectional view of a cover system not according to the invention; Fig. 14 a further sectional view of the Fig. 13 The embodiment shown; Fig. 15 a sectional view of a cover system not according to the invention; Fig. 16 four views of preferred details of the cover unit; Fig. 17 a view of a preferred embodiment of the cover system; and Fig. 18 another embodiment of a cover system not according to the invention.

[0031] The in Fig. 1The schematic view shown of a preferred embodiment of the holding system 1 according to the invention has an edge unit 4 which clamps a surface element 2 in a clamping section 5 in a force-fit manner. Furthermore, a fastening section 42 is provided on the edge unit 4, in which a fastening unit 6 is positively and advantageously also force-fit fixed to secure the edge unit 4 to the building (not shown). The surface element 2 extends substantially along a surface plane F. The clamping section 5 has a first clamping element 51 and a second clamping element 52, which transmit a clamping force acting perpendicular to the surface plane F to the surface element 2 and thus fix it to the edge unit 4. At the left distal end of the surface element 2, it is shown that a gap still exists between the inner wall of the edge unit 4 and the surface element 2.This gap allows the surface element 2 to expand accordingly when heated, without touching the inside of the edge unit 4, thus ensuring that the clamping connection in the clamping area 5 is not affected and that the surface element 2 remains securely held on the edge unit 4.

[0032] Fig. 2Figure 1 shows another preferred embodiment in a partially cutaway view. In this case, the edge unit 4 is made up of multiple parts and has a cover element arranged on its upper side and positively fixed, which is designed as a cover plate 41. The cover element, or cover plate 41, serves in particular to prevent moisture from penetrating the contact area between the surface element 2 and the edge unit 4, thus ensuring weather resistance of the connection between the edge unit 4 and the surface element 2 and protecting the underlying masonry. Furthermore, it is shown that the surface element 2 has a main extent parallel to the surface plane F, and in the area shown on the left of the figure, the surface element 2 also has a downwardly angled section, which may itself be angled again.In this way, the angled section of the surface element protects the front face of the connection between the edge unit 4 and the surface element 2. The fastening unit 6 is also shown, which is positively locked to the fastening area 42 of the edge unit 4 via an engagement area. This positive locking can be further reinforced by a bore in the fastening section 42 and a screw element inserted therein, thus preventing displacement of the edge unit 4 relative to the fastening unit 6 along or parallel to the insertion direction E. The fastening unit 6 is fixed to the building, preferably to the masonry of the building (not shown), via the elongated recesses and corresponding screw elements shown.

[0033] Fig. 3 shows further details of the already in Fig. 2In the embodiment shown, the connection area between the edge unit 4 and the surface element 2 is cut at a different location, so that the internal geometry of the edge unit 4 is more clearly visible. Preferably, the edge unit 4 has a clamping part 54 and an edge part 44, wherein the clamping part 54 is inserted into the edge part 44 along the insertion direction E and is fixed there by force and form locking in at least one direction perpendicular to the surface plane F. In this embodiment, the clamping part 54 has the clamping area 5, which comprises the first clamping element 51 and the second clamping element 52. The surface element 2 is inserted and clamped there. Furthermore, the clamping part 54 has a clamping-side retaining section 55, which is inserted into an edge-side retaining section 45 of the edge part 44 and clamped there.In this way, a demountable yet sufficiently strong connection can be established between the edge part 44, the clamping part 54, and the surface element 2. Advantageously, the fastening section 42 is formed on the edge part 44, so that the fastening unit 6 secures the edge part 44 against displacement relative to the building. In the embodiment of the... Figures 2 and 3 The base unit 3 is still shown, which is as in Figure 3 The edge unit 4 extends essentially perpendicular to the edge unit 4 and advantageously also has a fixed connection to the building. The edge unit 4 is secured against displacement relative to the building at its end, which is spaced from the attachment point with the fastening unit 6, via the base unit 3. The engagement between the edge unit 4 and the base unit 3 is advantageously positive-locking.

[0034] Fig. 4Figure 1 shows a particularly preferred embodiment of the holding system 1 according to the invention, in a view along the insertion direction E. The geometry of the parts of the edge unit 4, which are advantageously designed as profile bodies, is shown in particular. The edge unit 4 has a clamping part 54 and an edge part 44. Both parts have a cross-section that is essentially constant along the insertion direction E. As previously described, the clamping part 54 has the clamping area 5 with a first clamping element 51 and a second clamping element 52. The clamping elements 51 and 52 are advantageously pre-tensioned against the surface element 2 and thus exert a clamping force on the surface element 2, acting perpendicular to the surface plane F, due to their elastic deformation.Advantageously, the first clamping element 51 has two downward-projecting projections spaced apart such that the contact area of ​​the second clamping element 52 with the surface element 2 is located between the two local projections. Furthermore, the projection shown on the left on the first clamping element 51 is preferably designed with a chamfer, so that when the surface element 2 is inserted into the clamping area 5, a large preload between the clamping elements 51 and 52 can be generated with a manually applied insertion force of the surface element 2 into the clamping area 5. It is understood that this geometry on the first clamping element 51 and on the second clamping element 52 also applies to the [unclear - possibly "in the context of the last sentence or phrase]. Fig. 1The illustrated embodiment of the invention can be used. It is further shown that a retaining pin 7 is preferably fixed to the clamping-side retaining section 55, wherein the retaining pin 7 is advantageously inserted and fixed in a recess on the clamping-side retaining section 55 in a form-fitting manner and has two head sections 72. The head sections 72 form a contact surface with the edge-side retaining section 45 and achieve, on the one hand, a strong clamping between the jaws of the edge-side retaining section 45 and, on the other hand, damping and elastic suspension of the connection between the clamping part 54 and the edge part 44. In the background of the edge unit 4, the base unit 3 is shown, which extends transversely to the insertion direction E and, in particular, similar to the elongated recesses on the fastening unit 6, has elongated recesses which serve to fasten the base unit 3 to the building G.

[0035] Fig. 5Figure 1 shows a cutaway, perspective view of a preferred embodiment of the holding system 1 according to the invention, in which both the edge unit 4 and the fastening unit 6 have been cut in the middle. The engagement area between the edge unit 4, in particular between the edge part 44 of the edge unit 4 and the base unit 3 in the rear section (shown on the right in the figure), is visible. It is also shown that two retaining pins 7 are provided on the clamping-side holding section 55, distributed along the insertion direction E, each having an upper and a lower head section 72.The profiled design of the clamping element 54 preferably ensures that the illustrated first clamping element 51 and the concealed second clamping element 52 exert a surface load on the surface element 2, thereby creating a large contact area between the clamping element 54 and the surface element 2, which establishes a particularly large holding force between the clamping element 54 and the surface element 2. Particularly preferably, the clamping force between the clamping element 54 and the surface element 2 is greater than the clamping force between the edge-side holding section 45 and the clamping-side holding section 55, which is generated via the holding pins 7.

[0036] Fig. 6 shows a view of the in the Figures 2 and 5The illustrated embodiment, in which only the edge part 44 of the edge unit 4 is shown, and in particular the engagement between the edge part 44 and the base unit 3 is illustrated. The edge part 44 preferably has a groove 46 which engages with a corresponding engagement projection on the base unit 3 in a form-fitting manner in order to secure the edge part 44, and thus the edge unit 4, to the base unit 3 in a form-fitting manner. Together with the fastening of the edge part 44 in the fastening area 42 on the fastening unit 6, the edge part 44 is thus indirectly secured against displacement relative to the building at two points via the base unit 3 and the fastening unit 6.

[0037] Fig. 7Figure 1 shows a perspective view of a preferred embodiment of a cover system 10 according to the invention. The cover system 10 is attached to a building G, in particular to various areas of the building G. Specifically, a plurality of fastening units 6 are used, each of which can preferably be attached to or fixed to the building G by means of screws and which ensure the attachment of the edge units 4 (shown hidden in this view) and the surface elements 2 that engage with them. The surface elements 2 are attached to an edge unit 4 of a retaining system 1 at their lateral end regions. The retaining systems 1 arranged between two surface elements advantageously have two edge units 4, each of which positively secures a surface element 2.The cover system 10 makes it possible to create a modularly assembled cover for a specific section of masonry, such as a window area (on the left side of . Figure 7 ) and, for example, a cornice or balustrade (on the right side of Figure 7 to provide.

[0038] Fig. 8 shows an excerpt of the in Fig. 7The depicted cover system 10, whereby the surface elements 2 have been hidden for better visibility. Furthermore, only the edge parts 44 of the depicted edge units 4 are shown, wherein the retaining systems 1 arranged between two surface elements each have an edge unit 4 on the right and left side, each of which includes an edge part 44. To simplify the construction, the two edge units and their edge parts 44 are designed as a single component. Thus, the retaining system 1 arranged between the two surface elements (not shown) differs from a retaining system 1 arranged at the edge of a surface element 2. However, the basic principle according to the invention for fixing the surface element 2 to the respective edge unit 4 is the same as in the previously described embodiments of the Figures 2 to 6Furthermore, it is shown that a base unit 3 is provided, to which several boundary units 4, in particular the boundary parts 44 of the boundary units 4, can be defined, wherein the base unit 3 advantageously functions as a roof ridge in the area of ​​the cornice of the building G, so that not only the boundary units facing the viewer of Figure 8The cover system 10 not only allows for the attachment of corresponding edge units 4 to the base unit 3 on the opposite side, facing away from the viewer. In this way, the cover system 10, through the simple combination of a selection of three different profile bodies (edge ​​unit 4 arranged at the edge of a surface element, edge unit 4 arranged between two surface elements, and base unit 3), enables a multitude of arbitrarily scalable and modularly modifiable attachment options for surface elements 2 on a building G. This versatile application, which also includes particularly simple assembly of the surface units 2 in their respective force-fit positions on the building G, makes it easy to attach corresponding cover systems 10 even to complex building structures.

[0039] The in Figure 9The illustrated cover system 10 comprises a cover unit 2A and an insert unit 40. The insert unit 40 is advantageously designed as a solar panel and is intended to be connected to an electrical system on its underside, i.e., the side facing away from the top 25 of the base area 22 of the cover unit 2A. The cover unit 2A has a retaining area 24, which in the present embodiment is designed as a recess 30. Preferably, this recess 30 is designed as a recess 31 extending through the cover unit, through which the insert unit 40 can be inserted to rest against the retaining surface 26 of the retaining area 24 in the assembled position and be positively secured there against displacement relative to the cover unit 2A.Advantageously, in this example, a gap (not shown) is present between the retaining area 24 and the outer edge of the insert unit 40, which prevents liquid from entering the intermediate area between the cover unit 2A and the insert unit 40. The retaining surface 26 of the retaining area 24 is offset downwards relative to the base plane, which runs essentially parallel to and at the same level as the top surface 25 of the cover unit 2A, such that the insert unit 40 can be recessed. This allows the upper boundary surface 47 of the insert unit 40 to be flush with the top surface 25 of the base area 22. In this preferred example, the cover unit 2A is preferably a window sill cover made of formed sheet metal, wherein the base area 22 of the cover unit 2A is essentially parallel and flat.

[0040] Figure 10 shows the already in Figure 9The illustrated cover unit 2A with the removed insert unit 40 is shown. The circumferential retaining surface 26 of the retaining area 24 is also shown. The retaining surface 26 has a lateral area formed essentially orthogonal to the base plane H and a collar extending essentially parallel to the base plane H and offset downwards. As shown in the illustration, the retaining area 24, which is designed as a recess 31, can be inserted into the retaining area 24. Figure 9 shown that the operational unit 40 will be deployed.

[0041] Figure 11Figure 1 shows a further preferred embodiment of a cover system not according to the invention in a sectional view. In this embodiment, the retaining area 24 is simply formed as a recess 31 in the cover unit 2A, with the retaining surfaces 26 extending orthogonally to the base plane H. In this embodiment, the insert unit 40 has a collar which rests on the base area 22 of the cover unit 2A, thus providing vertical support for the insert unit 40. With this particularly simple embodiment, only one bend in the cover unit 2A is required, which reduces the manufacturing effort of the cover system. Furthermore, with this preferred embodiment, it is possible to arrange a seal between the bearing surface of the insert unit 40 on the base area 22, which, in addition to its sealing function, also provides vibration damping.

[0042] Figure 12Figure 1 shows another preferred embodiment of a cover system not according to the invention. In this example, the retaining area 24 is designed as a trough-shaped recess or as a trough-shaped depression or basin. As in the embodiments shown previously, an insert unit 40 can be inserted into this retaining area 24. As in the embodiment shown in Figure 2, a retaining unit 40 can also be inserted into the retaining area 24. Figure 1In the illustrated embodiment, the upper boundary surface 47 of the insert unit is arranged within the base area 22 of the cover unit 2A. The advantage of the trough-like design of the retaining area 24 is that no liquid can penetrate downwards through a gap between the insert unit 40 and the cover unit 2A towards the masonry or building G, but rather collects in the trough formed by the retaining area. This can be particularly advantageous when the insert unit is used as a flower box, and it is especially beneficial if rainwater can be collected and not drained away via a drainage system.

[0043] Figure 13 Figure 1 shows another preferred embodiment of a cover system not according to the invention, in which the insert unit 40 is arranged in a recess in the masonry, while the cover unit 2A is also fixed to the masonry of the building G via a retaining system 1. Figure 13Figure 1 shows the closed state B of the cover unit 2A, in which the cover unit 2A rests on the insert unit 40 and thus secures it against upward displacement, i.e., essentially transversely to the base plane H. The advantage of this embodiment is that the insert unit 40 can extend further downwards towards the masonry than in the previously described embodiments. This is particularly suitable for containers designed for planting, storing, or collecting water and which require a corresponding depth. The cover unit 2A preferably has a recess 31 through which the insert unit 40 can be accessed. Furthermore, a seal 60 is arranged between the cover unit 2A and the top of the insert unit 40, which is clamped between the cover unit 2A and the insert unit 40.The seal 60 is advantageously designed as a lamellar seal made of rubber or weather-resistant silicone. This is in . Figure 13 The mounting system 1 shown allows the cover unit 2A to be pivotally fixed to the building G, the masonry cornice, or the window sill area. It is understood that such a mounting system 1 also applies to the previously shown embodiments of the Figures 9-12 can be used, in particular to access the underside of the cover unit 2A with the attached and pre-assembled insert unit 40.

[0044] Figure 14 shows the in Figure 13 The embodiment shown, wherein the cover unit 2A is in the open position A. As already explained, the retaining system 1 allows the cover unit 2A to pivot relative to the building. This makes it possible to remove the insert unit 40 from its engagement with the building or masonry or to service it in another way.

[0045] Figure 15Figure 1 shows another preferred embodiment of the cover system not according to the invention. In contrast to the previously shown examples, the fastening area 24 is produced here by means of several retaining elements 50, wherein the retaining elements 50 are arranged and fixed on the base area 22 of the cover unit 2A. Preferably, for this embodiment, it is not necessary to form a recess in the cover unit 2A. The retaining elements 50 can be welded, glued, screwed, attached, or fixed to the base area 22 of the cover unit 2A. The advantage of this embodiment is the high flexibility of the design of the retaining area 24, since different retaining areas 24 can be applied to a single, prefabricated cover unit 2A depending on the application. Furthermore, the present embodiment allows the weather resistance of the cover unit 2A to be maintained without additional seals.The retaining elements 50 are designed such that they have retaining surfaces 26 that run parallel to the base plane H as well as those that run orthogonally to the base plane H.

[0046] Figure 16 Finally, four views of preferred embodiments of the holding area 24 of the cover unit 2A are shown. The one shown on the far left is the one already described in the Figures 9 and 10The form of the retaining area 24 used is shown in the second illustration from the left. A preferred embodiment is shown in which a retaining element 50 is fixed to the base area 22 of the cover unit 2A via a reinforcing element 70. The reinforcing element 70 allows for local stiffening of the cover unit 2A, particularly to accommodate heavier insert units 40. Alternatively, as shown in the second illustration from the right, a retaining element 50 can be screwed to the base area 22 of the cover unit 2A, which in turn forms a retaining area 24 with retaining surfaces 26 as shown in the Figures 9 and 10as well as in the two embodiments shown on the left. In the preferred embodiment shown on the far right, the cover unit 2A has two projections below the base area into which a reinforcing element (not shown) can be inserted, in particular to provide additional support to the corner area adjacent to the holding area 24.

[0047] Figure 17Figure 1 shows a preferred embodiment of a cover system not according to the invention, in which the insert unit 40 is designed as a container or box, wherein a circumferential seal 60 is defined in the holding area 24, which provides the corresponding seal between the insert unit 40 and the cover unit 2A. The cross-sectional geometry of the circumferential seal 60 can be seen in the detailed view shown on the left. Advantageously, the circumferential seal 60 is designed as a lamellar seal, which can be attached to the holding area 24, and the insert unit 40 can preferably be slid onto this seal from one side.

[0048] Figure 18Figure 40 shows a preferred detail of an insert unit 40, which can also be used in the embodiments described above. The insert unit 40 has a drainage system 9, which advantageously drains liquid that has collected in the insert unit 40, which is designed as a container, in a controlled manner. Advantageously, a corresponding drainage channel is provided on the building, which collects the liquid coming from the drainage system 9 of the insert unit 40 and drains it above the masonry. It is understood that such drainage is also possible in the embodiments of the Figures 9-11 as well as the Figure 13 , 14 and 17 can be used. Reference symbol: 1 - Holding system 44 - Edge part 2 - Surface element 45 - edge holding section 2A - Cover unit 46 - Nut 3 - Base unit 47 - upper boundary surface 4 - Marginal unit 50 - retaining element 5 - Clamping section 51 - first clamping element 6 - Mounting unit 52 - second clamping element 7 - Retaining pin 54 - Clamping part 9 - drainage 55 - clamp-side holding section 10 - Cover system 60 - seal 22 - Basic area 70 - Reinforcing element 24 - Stopping area 72 - Head section 25 - Top side of the base area A - open position 26 - Holding surface B - closed position 30 - Return E - Insertion direction 31 - recess F - plane 40 - Deployment unit G - Building 41 - Aperture H - Basic level 42 - Fastening section

Claims

1. A retaining system (1) for securing a surface element (2) or a cover unit (2A), comprising an edge unit (4) and a mounting unit (6), wherein the edge unit (4) comprises a clamping section (5) into which the surface element (2) can be inserted, wherein the clamping section (5) comprises at least a first clamping element (51) and a second clamping element (52), wherein the first and second clamping elements (51, 52) are firmly connected to the clamping section (5) and can be brought into contact with the surface element (2) in such a way that they exert a force on the surface element (2) acting transversely to a surface level (F), such that the surface element (2) is secured to the clamping section (5) at least by force-fit engagement, wherein the edge unit (4) comprises a mounting portion (42) with which the mounting unit (6) can be brought into at least a positive engagement, wherein the mounting unit (6) can be secured to a building (G) in order to secure the edge unit (4) against displacement relative to the building (G), characterised in that the mounting unit (6) is connected to the edge unit (4) so as to be pivotable about an axis of rotation, the edge unit (4) comprises a clamping part (54) and an edge part (44), wherein the edge part (44) comprises the mounting portion (42) and the clamping part (54) comprises the clamping section (5), wherein the clamping part (54) can be inserted into the edge part along an insertion direction (E) in such a way that an edge-side holding section (45) on the edge part (44) engages with a clamping-side holding section (55) on the clamping part (54) in at least a force-fit engagement, wherein, in the direction transverse to the surface level (F), a positive fit acts between the clamping-side and the edge-side holding sections (45, 55).

2. The retaining system (1) according to claim 1, wherein the edge part (44) and the clamping part (54) are essentially formed as profiled bodies with a constant cross-section along the insertion direction (E).

3. The retaining system according to the preceding claims, wherein at least one retaining pin (7) is provided on the clamping part (54) and / or on the edge part (44), which is formed from an elastically deformable plastic, wherein the clamping part (54) and the edge part (44) are formed from a stiffer material, in particular one with a higher modulus of elasticity, than the retaining pin (7).

4. The retaining system according to claim 3, wherein the retaining pin (7) is inserted into a recess in the edge part (44) or in the clamping part (54) and has at least one header section (72) which extends further than the recess.

5. The retaining system according to claim 4, wherein a plurality of retaining pins (7) is distributed along the insertion direction (E) on the clamping-side holding section (55).

6. The retaining system (1) according to one of the preceding claims, wherein the first and second clamping elements (51, 52) are formed as projections on the clamping part (54) and receive an edge of the surface element (2) between them.

7. The retaining system (1) according to one of the preceding claims, wherein the holding force acting between the clamping part (54) and the surface element (2) parallel to the surface level (F) is greater than the holding force acting between the clamping part (54) and the edge part (44) parallel to the surface level (F).

8. The retaining system (1) according to one of the preceding claims, wherein the edge unit (4), in particular the edge part (44), is designed for a detachable positive fit connection to a base unit (3), wherein the base unit (3) is fixed to the building (G) and extends substantially transversely to the edge unit (4).

9. The retaining system (1) according to claim 8, wherein the edge part (44) comprises a groove (46) which is configured for positive engagement with a corresponding projection on the base unit (3).

10. A covering system (10) for use on a window sill and / or a masonry ledge, comprising a cover unit (2A) and an operational unit (40); wherein the cover unit (2A) comprises a core area (22) and a recess (31), wherein the operational unit (40) is arranged on and secured to a building component or masonry, wherein the cover unit (2A) can be moved by a retaining system (1) according to one of claims 1-9 into a closed position (B), in which the recess (31) is arranged such that access to the operational unit (40) is unobstructed, wherein a. a seal (60) is arranged between the cover unit (2A) and the operational unit (40) and is clamped in place in the closed position (B) of the cover unit (2A), and / or b. a drainage system is provided which drains water in a controlled manner.

11. The covering system (10) according to claim 10, wherein the cover unit (2A) is detachably secured to the building component or masonry, wherein the retaining system (1) is secured to the building component or masonry and secures the cover unit (2A) indirectly to the building component or masonry in such a way that the cover unit (2A) can be moved into an open position (A) and into the closed position (B).