EP4249795B1 - Support system - Google Patents

Description

FIELD OF INVENTION

• eine Trägerplatte mit einer Auslassöffnung,
  wobei die Trägerplatte eine Sichtseite und eine der Sichtseite abgewandte Einbauseite aufweist;
• ein plattenförmiges Kühlelement, welches auf der Einbauseite der Trägerplatte angeordnet ist;
• ein Halterungselement für die lösbare Arretierung und Aufnahme eines Leuchtkörpers, um eine Platine des Leuchtkörpers mit dem Kühlelement zu kontaktieren,

wobei das Halterungselement einen Basisabschnitt und einen sich vom Basisabschnitt entlang einer Längsachse erstreckenden Aufnahmefortsatz umfasst, wobei der Basisabschnitt am Kühlelement befestigt ist und der Aufnahmefortsatz zumindest abschnittsweise durch die Auslassöffnung der Trägerplatte geführt ist. Weiters betrifft die Erfindung die Verwendung eines erfindungsgemäßen Halterungssystems an einem in Massivbauweise oder Trockenbauweise ausgebildeten Decken- oder Wandelement.The present invention relates to a mounting system for fastening at least one luminous element to a ceiling or wall element comprising

• a carrier plate with an outlet opening,
  wherein the carrier plate has a visible side and an installation side facing away from the visible side;
• a plate-shaped cooling element which is arranged on the installation side of the carrier plate;
• a mounting element for the releasable locking and holding of a luminous element in order to contact a circuit board of the luminous element with the cooling element,

wherein the mounting element comprises a base section and a receiving extension extending from the base section along a longitudinal axis, wherein the base section is fastened to the cooling element and the receiving extension is guided at least in sections through the outlet opening of the carrier plate. Furthermore, the invention relates to the use of a mounting system according to the invention on a ceiling or wall element constructed in solid construction or dry construction.

In the context of the present invention, a ceiling or wall element is generally understood to mean that section of a ceiling or wall that surrounds the mounting system. Whether this is a single, connected element or a plurality of assembled elements is just as irrelevant as the construction. In particular, the term ceiling or wall element includes both solid construction ceilings, for example concrete ceilings, and dry construction ceilings, for example gypsum fiber or plasterboard ceilings; the same also applies to walls.

STATE OF THE ART

Recessed lighting fixtures, which are mostly located inside a ceiling or wall element, are used in buildings such as houses or in structures and supporting structures such as roofs and tunnels. Brackets or mounting systems are usually used here to securely fix the lighting fixture to or in the ceiling or wall element. Such mounting systems are preferably plastered in after installation so that a visually uniform overall appearance is created and only the lighting fixture and part of its bracket are visible from the outside.

The requirements for such mounting systems are diverse and sometimes contradictory: on the one hand, the required installation space, in particular the installation depth, should be as small as possible, and on the other hand, a mounting system should be flexible and usable for a wide range of applications. A structure that is as simple as possible in order to reduce unit costs and assembly that is as simple and uncomplicated as possible is offset by the requirement for a high degree of adaptability to the specific circumstances.

Particularly for lighting fixtures whose ability to produce light is not based on filaments or similar, but rather on LED technology, the best possible passive cooling is required in order to increase the light output. Depending on the lighting fixture, cooling elements may be necessary, whose task is to dissipate the heat lost by the lighting fixtures to the environment as effectively as possible in order to keep the operating temperature of the lighting fixtures low. To achieve this, cooling elements with a large surface area are preferably used.

The EP 3 879 169 A1 discloses a mounting system with a carrier element, a cooling element and a mounting fixed to the cooling element in a rotationally fixed manner for receiving a light body, wherein the mounting extends in sections from an opening of the The bracket has an external thread which interacts with an internal thread arranged in the opening of the support element. By rotating the bracket relative to the support element, a projection protruding from the opening, also known as a plastering section, can be varied in order to be able to adapt the bracket system to different thicknesses of plaster or filler layers. As an alternative to the thread, a locking connection is proposed.

A disadvantage of the state of the art is that the adaptability of the projection to different thicknesses of plaster or filler layers usually has to be done before assembly or is only possible to a limited extent when assembled: If the carrier element is held stationary and the mounting element is rotated during rotation in the assembled state, the cooling element and all electrical connections and wiring are also rotated, which is only possible to a limited extent - if at all - and allows at most a minor adjustment. However, if the bracket is held stationary and the carrier element is rotated, this results in design restrictions with regard to the shape of the carrier element: in particular, only a circular or polygonal shape is conceivable, since otherwise no rotation is possible when installed; furthermore, the carrier element cannot be connected to the ceiling or wall element in a rotationally fixed manner. In practice, the projection must therefore be adjusted before assembly when the elements can still be freely rotated against each other. The alternatively proposed snap-in connection, on the other hand, only allows discrete, not continuous adjustment.

Another disadvantage is that the mounting system is not suitable for all types of ceiling or wall elements without extensive adaptation. In particular, it is only useful for ceiling or wall elements in dry construction, as the system can be hung into these and no rotationally fixed connection is required.

TASK OF THE INVENTION

It is therefore an object of the invention to overcome the disadvantages of the prior art and to propose a mounting system which enables both a simplified adaptation of the projection to different thicknesses of subsequently applied plaster or filler layers, in particular in the assembled state of the mounting system, and the most flexible possible use in ceiling or wall elements of different construction types, in particular both solid construction and drywall construction.

DESCRIPTION OF THE INVENTION

• eine Trägerplatte mit einer Auslassöffnung,
  wobei die Trägerplatte eine Sichtseite und eine der Sichtseite abgewandte Einbauseite aufweist;
• ein plattenförmiges Kühlelement, welches auf der Einbauseite der Trägerplatte angeordnet ist;
• ein Halterungselement für die Aufnahme und lösbare Arretierung eines Leuchtkörpers, um eine Platine des Leuchtkörpers mit dem Kühlelement zu kontaktieren,

wobei das Halterungselement einen Basisabschnitt und einen sich vom Basisabschnitt entlang einer Längsachse erstreckenden Aufnahmefortsatz umfasst, wobei der Basisabschnitt am Kühlelement befestigt ist und der Aufnahmefortsatz zumindest abschnittsweise durch die Auslassöffnung der Trägerplatte geführt ist, dadurch gelöst, dass die Trägerplatte über Beabstandungsmittel mit dem Kühlelement verbunden ist, wobei die Beabstandungsmittel derart ausgebildet sind, dass durch eine Aktuierung der Beabstandungsmittel das Kühlelement entlang der Längsachse relativ zu der Trägerplatte, vorzugsweise rein translatorisch, positioniert werden kann, sodass ein auf der Sichtseite aus der Auslassöffnung der Trägerplatte ragender Überstand des Aufnahmefortsatzes variierbar ist, wobei die Beabstandungsmittel von der Sichtseite der Trägerplatte aus betätigbar sind.This object is achieved in a mounting system according to the invention for fastening at least one luminous element to a ceiling or wall element comprising

• a carrier plate with an outlet opening,
  wherein the carrier plate has a visible side and an installation side facing away from the visible side;
• a plate-shaped cooling element which is arranged on the installation side of the carrier plate;
• a mounting element for receiving and releasably locking a luminous element in order to contact a circuit board of the luminous element with the cooling element,

wherein the holding element comprises a base section and a receiving extension extending from the base section along a longitudinal axis, wherein the base section is fastened to the cooling element and the receiving extension is guided at least in sections through the outlet opening of the carrier plate, solved in that the carrier plate is connected to the cooling element via spacing means, wherein the spacing means are designed such that by actuating the spacing means the cooling element can be positioned along the longitudinal axis relative to the carrier plate, preferably purely translationally, so that a projection of the receiving extension protruding from the outlet opening of the carrier plate on the visible side is variable, whereby the spacing means can be actuated from the visible side of the carrier plate.

As is known from the prior art, the projection is that part of the support element which protrudes from the opening of the support plate on the visible side. A main dimension of the projection is measured according to the longitudinal extension between the corresponding end of the receiving extension, in particular a closing edge, and a front surface of the support element along the longitudinal axis. In particular, the corresponding dimension of the projection is determined between a normal plane associated with the closing edge and a normal plane associated with the front surface.

An outer surface of the overhang serves as a plastering surface if, after the mounting system has been installed, a layer of plaster or filler is applied to the carrier plate and the surrounding ceiling or wall element. Depending on the thickness of the applied layer of plaster or filler, the overhang must be varied so that the end of the support extension, in particular the end edge, is flush with the layer of plaster or filler. The support extension and any light fixture inserted in it are therefore integrated seamlessly into the appearance. The visible side, in particular the front surface, of the carrier plate is fitted into the ceiling or wall element during installation and can be fixed to it in place.

In the present invention, the variation of the projection is decoupled from the holding element and is carried out via separate and actuatable spacing means. Accordingly, a mechanical connection between the holding element and the carrier plate is not absolutely necessary, and no contact between the receiving extension and an inner wall of the bore is necessary either. Since the carrier plate is connected to the cooling element via the spacing means and the holding element is attached to the cooling element, the The projection of the receiving extension can be varied indirectly by changing the distance between the carrier plate and the cooling element using the spacing means: If the distance between the carrier plate and the cooling element is reduced using the spacing means, the projection increases because the receiving extension protrudes further over the carrier plate. Conversely, if the distance between the carrier plate and the cooling element is increased using the spacing means, the projection decreases because the receiving extension is "pulled in". The dimensioning of the spacing means and the receiving extension can thus be used to constructively define a maximum projection that can be exploited, with a middle ground preferably being chosen between the smallest possible installation depth and the maximum possible projection.

The fact that the spacing means can be operated from the visible side of the support element, i.e. from the side of the support plate that remains visible and accessible after installation in the ceiling or wall element, ensures that the overhang can be easily adjusted without restrictions even after the mounting system has already been installed. Accordingly, a mounting system according to the invention enables maximum variability even when installed, since each overhang can be adjusted between a minimum value and the maximum possible overhang.

A variety of different mechanical solutions can be used as spacing means, with both purely translational means, such as scissor gates, and means that translate a rotation about its own axis into a translational movement, such as elements provided with a threaded section, or combinations thereof, being conceivable. Preferably, the spacing means do not have to be actuated simultaneously, but can be actuated one after the other.

Since the projection is varied via the spacing means and the relative movement between the support element and the cooling element is preferably limited to a purely translational displacement, in particular in the direction of the longitudinal axis, the mounting system can be mounted on a large number of different ceiling or wall elements, since corresponding fastening elements - if necessary - can be easily guided through the cooling element without this having a negative influence on the variability of the projection.

In order to enable a construction that saves as much space as possible, it is preferred if an axis of the opening of the carrier plate is aligned parallel, in particular coaxially, to the longitudinal axis. It is also advantageous for this purpose if the plate-shaped cooling element and the carrier plate are aligned essentially normal to the longitudinal axis. The installation depth is particularly small if both measures are taken.

Furthermore, the design of the mounting system according to the invention enables the use of large-area plate-shaped cooling elements in relation to the illuminant or to a cross-section of the receiving section of the mounting element, so that the use of luminous elements with high light outputs is possible due to the high achievable cooling performance.

To enable easy assembly or preparation of the ceiling or wall element, the carrier plate preferably has a polygonal shape, although a round or elliptical shape is also conceivable. It has proven advantageous if the carrier plate has a rectangular shape and thus has a rectangular outline. It is also advantageous if the outline of the cooling plate is essentially the same as the outline of the carrier plate.

The carrier plate is preferably made of a material that has good adhesion properties for mineral or synthetic resin-bonded plasters or fillers. It is therefore advantageous to have the carrier plate in the form of gypsum fibreboard or plasterboard. The plate-shaped cooling element is preferably made of metal, in particular as a flat cooling plate.

One embodiment of the invention provides that the mounting system comprises at least two spacing means, preferably exactly three spacing means. By using more than one spacing means, the distance between the carrier plate and the cooling element can be easily adjusted even in mounting systems in which the base area of at least the carrier plate, preferably the carrier plate and the plate-shaped cooling element, is a multiple of the cross section of the receiving extension. If three spacing means are provided, the mounting system is on the one hand highly stable and on the other hand can still be operated with relatively little effort. By providing at least two spacing means, small differences in the visible surface of the ceiling or wall element can also be compensated.

In a further embodiment of the mounting system according to the invention, the spacing means each comprise an actuating section mounted in the carrier plate and a threaded section, wherein the threaded section is screwed to a counter thread of the cooling element. Because the spacing means each have a threaded section, the positioning of the carrier plate and cooling element along the longitudinal axis can be achieved by a rotational movement of the spacing means about their own axis. The, in particular, stationary, mounting of the actuating section in the carrier plate on the one hand ensures that the actuating section is accessible from the visible side, and on the other hand it ensures that the cooling element is moved relative to the carrier plate by the counter thread and not vice versa. Furthermore, the Bearing of the actuating section also ensures that the plate-shaped cooling element is supported on the carrier plate.

Preferably, the spacing means are designed as screws, wherein the screw head represents the actuating portion and the screw thread represents the threaded portion.

According to a further embodiment of the invention, the carrier plate has a bearing pocket for each spacing means, which is open both laterally and in the direction of the installation side, for the stationary mounting of the actuating section in the direction of the longitudinal axis, and each bearing pocket is accessible via an actuating opening from the visible side of the carrier plate. The bearing pocket can be, for example, a groove or a milled recess in the carrier plate, which makes it possible for the actuating sections to be easily inserted into the carrier plate and held in the carrier plate. Stationary mounting is to be understood as meaning that in an assembled state of the mounting system, only a rotation of the spacing means about its own axis is possible, but no translational movement in the direction of the longitudinal axis. This structurally ensures that the cooling element can be "pulled towards the carrier plate" or "pushed away from the carrier plate".

In order to guide the threaded section of the spacer through the carrier plate in the direction of the plate-shaped cooling element, the bearing pockets are also open in the direction of the installation side. The actuation openings serve to be able to actuate the spacer in the assembled state, preferably using a tool such as a screwdriver.

Preferably, the bearing pockets have, at least in sections, a trapezoidal cross-section for receiving the actuating section and are shaped accordingly, in particular in the manner of a dovetail groove. The design of the Bearing pockets as T-slots are an advantageous alternative to the previously described variant.

In particular, if at least three, preferably exactly three, spacing means are provided, the positioning of the bearing pockets can also ensure that the spacing means do not detach from the carrier plate despite the lateral opening of the bearing pockets. Preferably, at least two bearing pockets are arranged on opposite sides of the carrier plate for this purpose.

In order to reduce the installation depth of the mounting system and to minimize the required distance between the carrier plate and the plate-shaped cooling element, a further embodiment of the invention provides that the carrier plate has a recess in the area of the outlet opening on the installation side, wherein the recess is dimensioned such that the base section of the mounting element can be at least partially sunk into the recess due to the relative movement between the carrier plate and the cooling element. Due to the ability to sunk the mounting element, in particular its base section, into the carrier plate, the height of the base section does not have to be added to the total height, more precisely only to the extent of the non-sunken portion. Without the recess, a collision with the installation side of the carrier plate would represent an end point for positioning during the relative movement of the cooling element with respect to the carrier plate. The recess allows this end point to be moved to just above the visible side, so that only a residual section of the carrier element remains in the area of the recess, which forms the opening. The dimensioning is usually achieved by making the cross-section of the recess larger than the outline of the base section in the direction of the longitudinal axis.

For fastening the mounting system to ceiling or wall elements which are arranged longitudinally next to the support plate, a further embodiment of the invention provides that the The mounting system comprises at least two fastening tabs for supporting the mounting system outside a contour of the carrier plate, wherein the fastening tabs are connected to the carrier plate and each have a tab section extending in a plane normal to the longitudinal axis, wherein the tab sections protrude beyond the contour of the carrier plate at least in sections,
wherein the mounting system can be attached by means of the tab sections to a section of the ceiling or wall element that laterally surrounds the carrier plate. Such an installation situation, for which the tab sections are particularly well suited, arises in particular in ceilings that are built using dry construction. The ceiling or wall element comprises one or more dry construction elements, for example gypsum fiberboard or plasterboard, wherein the mounting system is introduced into an installation opening in the dry construction element.

The term "outline of the carrier plate" is understood to mean a projection of the carrier plate onto a plane normal to the longitudinal axis. Essentially, the outline of the carrier plate corresponds to the base plan of the carrier plate in a coordinate system in which the longitudinal axis acts as the height direction.

Since the tab sections protrude beyond the outline of the carrier plate, the mounting system can be supported via the tab sections on the surrounding sections of the ceiling or wall element, in particular on the sections of a drywall element adjacent to the installation opening. The connection to the carrier plate can be direct or indirect, as well as detachable or non-detachable. For example, the fastening tabs can be glued or screwed to the carrier plate, or a mechanism with retaining grooves and retaining elements, as described in detail below, can be provided.

The tab sections can also be used to anchor second fastening elements, such as fastening screws or nails, so that they can be driven through the ceiling or wall element from the visible side and anchored in the tab section. The tab sections advantageously have a grid-like structure with a plurality of holes, at least in sections.

If the mounting system is to be installed in a solid ceiling or wall element, particularly in a concrete ceiling, preparatory steps are necessary during the manufacture of the ceiling or wall element, which will be explained below using the example of a concrete ceiling. A suitable formwork body must be provided when the concrete ceiling is formed so that an installation cavity is created for the mounting system after the concrete ceiling has been poured. Due to the particularly low installation depth of the mounting system in question, which can be between 15 and 60 mm, particularly in the range of 25 +/- 5 mm, the installation cavity can be relatively small. For example, a simple board, e.g. 25 mm thick, can be cut to size as a formwork body.

Since the installation cavity is adapted to the outline of the carrier element and its dimensions along the longitudinal axis and the mounting system is usually anchored directly in a floor wall of the installation cavity, it is advantageous if spacer elements with a predefined height are provided on the installation side of the carrier plate, which rest against the floor wall when installed and thus support the mounting system. Therefore, a further embodiment of the invention provides that the mounting system further comprises at least two spacers for determining an installation depth, wherein the spacers are connected to the carrier plate and each have at least two spacer elements protruding from the installation side in the direction of the longitudinal axis. On the one hand, the spacer elements can ensure that the visible side of the carrier plate is flush with the ceiling or wall element. On the other hand, it is ensured that the The functionality of the spacing devices is not impaired by insufficient spacing during installation.

The connection of the spacers to the carrier plate is analogous to the connection of the fastening tabs described above.

• in einer ersten Konfiguration sind die Varioelemente so an die Trägerplatte angebunden, dass die Laschenabschnitte vollständig innerhalb eines Umrisses der Trägerplatte liegen, wodurch die Varioelemente im Wesentlichen die Funktion von Distanzhaltern zur Festlegung einer Einbautiefe erfüllen;
• in einer zweiten Konfiguration sind die Varioelemente so an die Trägerplatte angebunden, dass die Laschenabschnitte den Umriss der Trägerplatte überragen, wodurch die Varioelemente im Wesentlichen die Funktion von Befestigungslaschen zur Abstützung des Halterungssystems außerhalb des Umrisses der Trägerplatte erfüllen.

In order to achieve a particularly flexible use of the mounting system for the two application examples described above, so that structurally identical mounting systems with the same components can be used during assembly, which only need to be slightly modified, a further embodiment of the invention provides that the mounting system comprises at least two variable elements, each variable element having a tab section extending in a plane normal to the longitudinal axis and at least two spacer elements extending in the direction of the longitudinal axis,
wherein the Vario elements are designed such that the Vario elements can be connected to the carrier plate in two configurations:

• in a first configuration, the Vario elements are connected to the carrier plate in such a way that the tab sections lie completely within a contour of the carrier plate, whereby the Vario elements essentially fulfil the function of spacers for determining an installation depth;
• In a second configuration, the Vario elements are connected to the carrier plate in such a way that the tab sections protrude beyond the outline of the carrier plate, whereby the Vario elements essentially fulfil the function of fastening tabs for supporting the mounting system outside the outline of the carrier plate.

The Vario elements are designed in such a way that they can fulfill the function of both a spacer and a fastening tab, depending on how they are connected to the carrier plate. Preferably, the two configurations described below are possible.

In the first configuration, in which the mounting system can be inserted into an installation cavity, the tab sections are "retracted", i.e. the tab sections do not protrude beyond the outline of the carrier plate and are therefore directed "inwards" and accommodated between the plate-shaped cooling element and the carrier plate. Due to this arrangement, the tab sections do not hinder the required assembly. In the assembled state, only the spacer elements are used.

In the second configuration, however, the tab sections that protrude beyond the outline of the carrier plate are in use, while the spacer elements generally do not perform any function.

Preferably, the vario elements are designed in such a way that they can be converted from one configuration to another by rotating 180° around their own axis.

The connection of the Vario elements to the carrier plate can be carried out analogously to the described connection of the spacers and the fastening tabs.

For the sake of clarity, it should be noted that the increased flexibility of the possible uses of the mounting system according to the invention through the use of variable elements is independent of the spacing means, although the combination naturally brings synergistic advantages. Accordingly, the technical effect of the variable elements can also be achieved with a mounting system according to the preamble of claim 1 and the characterizing features of claim 7. The same applies to the claims dependent on claim 7.

A further embodiment of the invention, which is also applicable analogously for the spacers or the fastening tabs, provides that the carrier plate has at least one laterally open retaining groove for each Vario element, each Varioelement has at least one retaining element on a lower side facing away from the spacer elements, designed to be received in the corresponding retaining groove,
wherein the holding element can be inserted into the holding groove in order to hold the Vario element stationary in the direction of the longitudinal axis and wherein the holding element does not extend into the area of the tab section. Since the carrier plate has at least one holding groove for each Vario element, each Vario element preferably has a number of holding elements corresponding to the number of holding grooves. Although the combination of a holding element and a holding groove is basically sufficient for fastening a Vario element, it is advantageous if at least two, preferably exactly two, holding elements and holding grooves are provided per Vario element. As a rule, the holding grooves are laterally open on opposite side surfaces of the carrier plate, in particular on those side surfaces which do not have the open bearing pockets.

By using the tried and tested tongue and groove principle, where the retaining elements act as springs, the Vario elements can be connected in two configurations in a simple manner: Since the at least one retaining element is arranged asymmetrically with respect to the spacer elements and the tab sections - namely not below the tab sections - on the Vario element, the desired configuration can be selected by inserting the at least one retaining element sideways into the corresponding retaining groove. If the Vario element is inserted into the retaining groove with the side that has the tab section first, the first configuration is achieved. If the Vario element is rotated by 180° and inserted into the retaining groove with the other side first, the second configuration is achieved.

The functionality of the stationary bearing in the retaining grooves corresponds to the function of the bearing pockets described above, whereby the retaining grooves are preferably also designed as dovetail grooves.

In a further embodiment of the invention, it is provided that the carrier plate has at least two fastening openings,
wherein at least two of the spacer elements are designed as sleeve-shaped spacer elements, which sleeve-shaped spacer elements are positioned coaxially to the fastening openings, so that first fastening elements can be guided through the fastening openings and the respective sleeve-shaped spacer elements, by means of which first fastening elements the mounting system can be fastened to a section of the ceiling or wall element located behind the cooling element as seen in the direction of the longitudinal axis.

In particular, if the ceiling or wall element is of solid construction, for example as a concrete ceiling which has an installation cavity, it is necessary to anchor the mounting system to a section of the ceiling or wall element which, as seen in the direction of the longitudinal axis from the carrier plate, is located behind the plate-shaped cooling element, for example a floor wall of the installation cavity. For this purpose, at least two fastening openings, for example pilot holes, are provided in the carrier plate so that corresponding fastening elements can be easily guided through the carrier plate. The sleeve-shaped spacer elements act as an extension of the fastening openings and serve to support the mounting system in exactly that section of the ceiling or wall element in which the forces are introduced during assembly. This means that deformation and/or damage to the carrier plate can be largely avoided when installing the first fastening elements, in particular when tightening fastening screws.

While the mounting system usually preferably comprises exactly one mounting element for exactly one luminous element, so that the cooling capacity of the cooling element is available for cooling a luminous element, in a further embodiment of the invention it is provided that the The mounting system comprises at least one additional mounting element and the carrier plate has an additional outlet opening for each additional mounting element. Depending on the size of the carrier plate and the cooling element, two, three, four or more lighting elements can be attached to the ceiling or wall element at the same time using a mounting system. The additional mounting elements and outlet openings are preferably constructed identically to the elements described at the beginning, so that the functioning of the mounting system according to the invention is not affected by this.

In order to achieve the most efficient cooling possible through the plate-shaped cooling element, it is advantageous to maximize the dimensions of the cooling element in relation to the dimensions of the carrier plate. To ensure the flexible usability of the mounting system, it is also advantageous that an outline of the cooling element lies within the outline of the carrier plate. Accordingly, according to a further embodiment variant, it is provided that the cooling element covers at least 75%, preferably at least 85%, in particular at least 90%, of an outline area of the installation side of the carrier plate. Following the previous definition of the term "outline", the outline area of the carrier plate is the projection area that lies within the outline of the carrier plate. The plate-shaped cooling element can nevertheless have several openings, in particular for ventilation, for fastening or passing through elements of the mounting system or for passing through cables.

Although, as stated above, it is advantageous if the outline of the plate-shaped cooling element lies within the outline of the carrier plate, in alternative design variants, in particular for use in drywall construction, it can also be provided that the cooling element projects beyond the outline of the carrier plate. In this way, a degree of coverage of over 100% can be achieved.

A further embodiment of the mounting system according to the invention provides that the at least one mounting element, in particular the base section and the receiving extension, is formed in one piece,
wherein the receiving extension and a receiving base of the base section adjacent to the receiving extension form a common, preferably circular-cylindrical, receiving volume for the luminous element. The one-piece design of the holding element, preferably as an injection-molded part, enables particularly simple and economical production of the holding element as well as simple assembly of the holding system. The receiving volume formed by the receiving base and receiving extension enables a circuit board of the luminous element used to contact the cooling element in a simple manner for the purpose of heat dissipation. Since commercially available luminous elements usually have a circular-cylindrical envelope surface, the receiving volume is also preferably circular-cylindrical. The base section is usually attached to the plate-shaped cooling element via connecting elements, for example connecting screws.

According to a further embodiment of the invention, the mounting system further comprises a connection board inserted into the base section of the mounting element for electrically contacting and/or locking the light source. The connection board is an electronic element which can be connected to a current and/or voltage source and which is used for electrical contacting or for electrically contacting and simultaneously locking the light source in the receiving volume. By inserting the connection board into the base section of the mounting element, the correct positioning of the connection board relative to the mounting element can be ensured in a simple manner.

In a further embodiment of the invention, it is provided that the connection board has a connection section and a contacting section,
wherein the connection section is designed to establish an electrical connection with connection lines and wherein the contacting section comprises at least a first contact projection and a second contact projection, wherein the contact projections protrude into the receiving volume and are designed such that the luminous element can be electrically contacted by means of the contact projections and locked in the receiving volume. The connection section can, for example, have soldering points to which connection lines are soldered or can be soldered. However, it is advantageous if the connection section has connection elements, in particular connection terminals, via which the connection lines can be connected to the connection board particularly easily and preferably without special tools. It is advantageous if the connection section also has a lockable cover, by means of which the connection section or the connection elements can be protected from contact after assembly. Furthermore, the cover can also have clamping openings for clamping the connection lines, so that the cover functions as a strain relief for the connection line after closing.

Preferably, a base body of the connection board is plate-shaped, wherein the contact projections are part of the base body.

The two contact projections that protrude into the receiving volume, where in a direct current system one contact projection usually forms the positive pole and one the negative pole, have a dual function in this design variant: On the one hand, they enable the power supply of an inserted light source. On the other hand, they serve to lock the inserted light source, preferably according to the principle of a bayonet lock.

• ein plattenförmiges Kühlelement und
• ein Halterungselement für die lösbare Arretierung und Aufnahme eines Leuchtkörpers, um eine Platine des Leuchtkörpers mit dem Kühlelement zu kontaktieren,

wobei das Halterungselement einen Basisabschnitt und einen sich vom Basisabschnitt entlang einer Längsachse erstreckenden Aufnahmefortsatz umfasst und den kennzeichnenden Merkmalen des Anspruchs 14 erzielt werden. Selbiges gilt für die von Anspruch 14 abhängigen Ansprüche.For the sake of clarity, it should be noted that the design and advantages of the above-described mounting element and the connection board are independent of the spacing means and do not necessarily require a carrier plate, although the combination naturally brings synergistic advantages. Accordingly, the technical effect of the mounting element and the connection board can also be achieved with a mounting system for fastening at least one luminaire to a ceiling or wall element comprising

• a plate-shaped cooling element and
• a mounting element for the releasable locking and holding of a luminous element in order to contact a circuit board of the luminous element with the cooling element,

wherein the holding element comprises a base portion and a receiving extension extending from the base portion along a longitudinal axis and the characterizing features of claim 14 are achieved. The same applies to the claims dependent on claim 14.

A particularly simple assembly and positioning of the connection board is achieved in a further embodiment of the invention in that the receiving volume has the shape of a circular cylinder whose axis coincides with the longitudinal axis, the receiving base has a first slot and a second slot offset in a circumferential direction for the passage of the contact projections, and that the connection board is shaped such that the connection board can be inserted, preferably reversibly, into the base section of the holding element by inserting the first contact projection into the first slot and subsequently pivoting the connection board relative to the holding element until the second contact projection is received in the second slot.

The slots make it easy to ensure that the contact projections can protrude through the base into the receiving volume. The two slots are located in one plane, whereby the Plane is preferably oriented parallel to a normal plane to the longitudinal axis. Advantageously, the slots are offset from one another by between 45° and 180°, preferably by between 135° and 180°, relative to the longitudinal axis. In principle, however, it is also conceivable that the slots are only slightly offset from one another, i.e. by an angle of less than 45°.

The connection board can preferably have a crescent-shaped connecting section that connects the two contact projections and rests on an outside of the receiving base when the connection board is inserted into it. The process of inserting the connection board can also be carried out in a few simple steps: Inserting the first contact projection and pivoting the connection board until the second contact projection is received in the second slot, preferably locked in place, does not require any additional tools. The connection board and slots are preferably designed in such a way that the insertion process is reversible, so that the connection board can be removed from the receiving base again without damage. It is advantageous if the connection board also has at least one connecting element, preferably one of the connecting elements that serve to attach the mounting element to the cooling element, attached to the cooling element after insertion.

The extremely flexible mounting system in question also enables a number of special uses, in particular with regard to the different mounting options. These uses, which can also be understood as a method for mounting a mounting system according to the invention, are described below. The technical features of the mounting system that enable these special uses have already been explained in detail above. In order to avoid unnecessary length, reference is made to the relevant passages and not all aspects are repeated. individually illuminated. It should also not go unmentioned that the use described defines a system in the assembled state comprising the mounting system, a ceiling or wall element and corresponding fastening elements.

The present invention also relates to the use of the mounting system according to the invention, preferably comprising the spacer elements, for fastening at least one luminous element to a ceiling or wall element constructed in solid construction, wherein the ceiling or wall element constructed in solid construction has a prefabricated installation cavity in a solid body and wherein the carrier plate has at least two fastening openings,
wherein the mounting system is introduced into the installation cavity, wherein first fastening elements are subsequently guided through the fastening openings and anchored in a floor wall of the installation cavity. Although the fastening openings were previously only discussed in connection with the sleeve-shaped spacer elements, it goes without saying that the carrier plate can have fastening openings for fastening the mounting system to the floor wall regardless of whether sleeve-shaped spacer elements are provided, although the advantages of the combination are obvious. An example of a ceiling or wall element constructed in solid construction is a concrete ceiling.

Furthermore, the present invention also relates to the use of a mounting system according to the invention comprising at least two tab sections for fastening at least one luminaire to a ceiling or wall element constructed using dry construction, the ceiling or wall element comprising at least one dry construction element, wherein the at least one dry construction element has an installation opening corresponding to an outline of the carrier plate, wherein the mounting system is introduced into the dry construction element via the installation opening, so that the tab sections secure the mounting system to the dry construction element supported, with second fastening elements subsequently being anchored via the drywall element in the tab sections in order to fix the mounting system to the drywall element.

• wobei die Varioelemente
  • entweder in der ersten Konfiguration an der Trägerplatte angebunden sind und das Decken- oder Wandelement in Massivbauweise ausgebildet ist, wobei das in Massivbauweise ausgebildete Decken- oder Wandelement einen vorgefertigten Einbauhohlraum in einem Massivkörper aufweist und wobei die Trägerplatte zumindest zwei Befestigungsöffnungen aufweist, wobei das Halterungssystem in den Einbauhohlraum eingeführt wird, bis die Distanzelemente an einer Bodenwandung des Einbauhohlraums anliegen, wobei nachfolgend erste Befestigungselemente durch die Befestigungsöffnungen geführt werden und in der Bodenwandung verankert werden;
  • oder in der zweiten Konfiguration an der Trägerplatte angebunden sind und das Decken- oder Wandelement in Trockenbauweise ausgebildet ist, das Decken- oder Wandelement umfassend zumindest ein Trockenbauelement,
• wobei das zumindest eine Trockenbauelement eine einem Umriss der Trägerplatte entsprechende Einbauöffnung aufweist,
• wobei das Halterungssystem über die Einbauöffnung in das Trockenbauelement eingeführt wird, sodass die Laschenabschnitte das Halterungssystem am Trockenbauelement abstützen, wobei nachfolgend zweite Befestigungselemente über das Trockenbauelement in den Laschenabschnitten verankert werden, um das Halterungssystem am Trockenbauelement zu fixieren.

Furthermore, the invention also relates to the use of a mounting system according to the invention comprising at least two variable elements for fastening at least one luminous element to a ceiling or wall element constructed in solid construction or in dry construction,

• where the Vario elements
  • either are connected to the carrier plate in the first configuration and the ceiling or wall element is of solid construction, wherein the ceiling or wall element of solid construction has a prefabricated installation cavity in a solid body and wherein the carrier plate has at least two fastening openings, wherein the mounting system is introduced into the installation cavity until the spacer elements rest against a bottom wall of the installation cavity, wherein first fastening elements are subsequently guided through the fastening openings and anchored in the bottom wall;
  • or in the second configuration are connected to the carrier plate and the ceiling or wall element is designed in dry construction, the ceiling or wall element comprising at least one dry construction element,
• wherein the at least one drywall element has an installation opening corresponding to an outline of the carrier plate,
• wherein the mounting system is inserted into the drywall element via the installation opening so that the tab sections support the mounting system on the drywall element, wherein second fastening elements are subsequently anchored via the drywall element in the tab sections in order to fix the mounting system to the drywall element.

Finally, the present invention also relates to the use of a mounting system according to the invention, optionally in combination with one of the previous Uses, wherein after the mounting system has been attached to the ceiling or wall element via the spacing means, the projection of the receiving extension in relation to the carrier plate is adjusted from the visible side and subsequently a layer of plaster is applied to the ceiling or wall element and to the visible side of the carrier plate, wherein the layer of plaster preferably ends flush with a finishing edge of the projection.

SHORT DESCRIPTION OF THE CHARACTERS

The invention will now be explained in more detail using exemplary embodiments. The drawings are examples and are intended to illustrate the inventive concept, but are in no way intended to restrict it or even represent it exhaustively.

Fig. 1

eine Explosionsdarstellung eines erfindungsgemäßen Halterungssystems und eines Leuchtkörpers;

Fig. 2

eine dreidimensionale Ansicht des Halterungssystems aus Fig. 1 von schräg oben;

Fig. 3

eine dreidimensionale Ansicht des Halterungssystems aus Fig. 1 von schräg unten;

Fig. 4

ein Ausführungsbeispiel des erfindungsgemäßen Halterungssystems mit zwei eingesetzten Leuchtkörpern;

Fig. 5

eine dreidimensionale Ansicht des erfindungsgemäßen Halterungssystems mit eingeklappten Varioelementen in einer ersten Konfiguration, wobei die Überführung eines Varioelements von der ersten Konfiguration in eine zweite Konfiguration verdeutlicht ist;

Fig. 6

eine dreidimensionale Ansicht des erfindungsgemäßen Halterungssystems mit ausgeklappten Varioelementen in der zweiten Konfiguration;

Fig. 7

ein in einem in Massivbauweise ausgebildeten Decken- oder Wandelement montiertes erfindungsgemäßes Halterungssystem in einer Ansicht von unten;

Fig. 8

eine Schnittansicht des Halterungssystems gemäß Linie AA in Fig. 7;

Fig. 9

eine Schnittansicht des Halterungssystems gemäß Linie AA in Fig. 7, wobei ein Überstand gegenüber Fig. 8 variiert ist;

Fig. 10

ein in einem in Trockenbauweise ausgebildeten Decken- oder Wandelement montiertes erfindungsgemäßes Halterungssystem in einer Ansicht von unten;

Fig. 11

eine Schnittansicht des Halterungssystems gemäß Linie BB in Fig. 10;

Fig. 12

eine Schnittansicht des Halterungssystems gemäß Linie BB in Fig. 10, wobei ein Überstand gegenüber Fig. 11 variiert ist;

Fig. 13

das System aus Figur 10 mit einer Putzschicht;

Fig. 14

eine Schnittansicht gemäß Linie CC in Fig. 13 mit einer dünnen Putzschicht;

Fig. 15

eine Schnittansicht gemäß Linie CC in Fig. 13 mit einer dicken Putzschicht;

Fig. 16

das Halterungssystem gemäß Fig. 6 in einer Ansicht von unten;

Fig. 17

eine Schnittansicht gemäß der Linie DD in Fig. 16;

Fig. 18

eine dreidimensionale Ansicht eines in einem in Trockenbauweise ausgebildeten Decken- oder Wandelement montierten erfindungsgemäßen Halterungssystems mit Putzschicht in einer Ansicht von schräg oben, wobei das Decken- oder Wandelement im Teilschnitt dargestellt ist;

Fig. 19

eine dreidimensionale Ansicht gemäß Fig. 18 in einer Ansicht von schräg unten;

Fig. 20

eine dreidimensionale Ansicht eines in einem in Massivbauweise ausgebildeten Decken- oder Wandelement montierten erfindungsgemäßen Halterungssystems mit Putzschicht in einer Ansicht von schräg oben, wobei das Decken- oder Wandelement im Teilschnitt dargestellt ist;

Fig. 21

eine dreidimensionale Ansicht gemäß Fig. 18 in einer Ansicht von schräg unten;

Fig. 22

eine dreidimensionale Detailansicht des Einsetzens einer Anschlussplatine in ein Halterungselement;

Fig. 23

eine dreidimensionale Ansicht des Halterungselements aus Fig. 22 mit eingesetzter Anschlussplatine;

Fig. 24

eine dreidimensionale Ansicht eines Systems umfassend das Halterungselement mit eingesetzter Anschlussplatine aus Fig. 23, die Trägerplatte und Anschlussleitungen;

Fig. 25

eine Ansicht des Systems gemäß Fig. 24 mit geschlossener Abdeckung.

It shows:

Fig.1

an exploded view of a mounting system according to the invention and a luminous element;

Fig.2

a three-dimensional view of the mounting system Fig.1 from above;

Fig.3

a three-dimensional view of the mounting system Fig.1 from diagonally below;

Fig.4

an embodiment of the mounting system according to the invention with two inserted lighting elements;

Fig.5

a three-dimensional view of the mounting system according to the invention with folded-in vario elements in a first configuration, wherein the transfer of a vario element from the first configuration to a second configuration is illustrated;

Fig.6

a three-dimensional view of the mounting system according to the invention with unfolded vario elements in the second configuration;

Fig.7

a mounting system according to the invention mounted in a solid ceiling or wall element in a view from below;

Fig.8

a sectional view of the support system according to line AA in Fig.7 ;

Fig.9

a sectional view of the support system according to line AA in Fig.7 , with a projection opposite Fig.8 is varied;

Fig.10

a mounting system according to the invention mounted in a ceiling or wall element constructed using dry construction, in a view from below;

Fig. 11

a sectional view of the mounting system according to line BB in Fig.10 ;

Fig. 12

a sectional view of the mounting system according to line BB in Fig.10 , with a projection opposite Fig. 11 is varied;

Fig. 13

the system Figure 10 with a layer of plaster;

Fig. 14

a sectional view along line CC in Fig. 13 with a thin layer of plaster;

Fig. 15

a sectional view along line CC in Fig. 13 with a thick layer of plaster;

Fig. 16

the mounting system according to Fig.6 in a view from below;

Fig. 17

a sectional view along the line DD in Fig. 16 ;

Fig. 18

a three-dimensional view of a mounting system according to the invention with a plaster layer mounted in a ceiling or wall element constructed using dry construction, in a view obliquely from above, the ceiling or wall element being shown in partial section;

Fig. 19

a three-dimensional view according to Fig. 18 in a view obliquely from below;

Fig. 20

a three-dimensional view of a mounting system according to the invention with a plaster layer mounted in a solid ceiling or wall element in a view obliquely from above, the ceiling or wall element being shown in partial section;

Fig. 21

a three-dimensional view according to Fig. 18 in a view obliquely from below;

Fig. 22

a three-dimensional detailed view of the insertion of a connection board into a mounting element;

Fig. 23

a three-dimensional view of the mounting element Fig. 22 with inserted connection board;

Fig. 24

a three-dimensional view of a system comprising the mounting element with inserted connection board from Fig. 23 , the carrier plate and connecting cables;

Fig. 25

a view of the system according to Fig. 24 with closed cover.

WAYS OF IMPLEMENTING THE INVENTION

The Figures 1 to 3 show an embodiment of a mounting system 1 according to the invention in different views, wherein the structure of the mounting system 1 can be seen in particular from the exploded view in Figure 1 is evident.

The mounting system 1 comprises a carrier plate 4, a plate-shaped cooling element 6 and a mounting element 7 for receiving and releasably locking a luminous element 2, as well as three spacing means 11, which spacing means 11 are rotatably mounted in the carrier plate 4 on the one hand and are connected to the cooling element 6 on the other hand.

The mounting element 7 comprises a base section 8, which is attached to the plate-shaped cooling element 6 via connecting elements 25, in the present embodiment these are connecting screws. The mounting element 7 further comprises a receiving extension 9, which extends along a longitudinal axis 10 away from the base section 8. A connection board 23 is inserted into the mounting element 7. The structure of the mounting element 7 and the connection board 23 is explained below using the Figures 22 to 24 described in detail.

The carrier plate 4 has an outlet opening 5 through which the receiving extension 9 of the holding element 7 is guided and, at least in most applications, protrudes from the carrier plate 4. The carrier plate 4 has a visible side 4a, which in the figures is a bottom side corresponds, and an installation side 4b facing away from the visible side 4a, preferably opposite, which in the figures corresponds to the top of the carrier plate 4. The visible side 4a is in this case after the mounting system 1 has been installed in a ceiling or wall element 3 (see e.g. Fig.7 ) remains visible and accessible, while the installation side 4b is accommodated in the ceiling or wall element 3 or is covered by the ceiling or wall element 3 and is not accessible.

As can be clearly seen from the figures, the carrier plate 4 and the plate-shaped cooling element 6, preferably a flat cooling plate, are aligned in the present embodiment essentially parallel to a normal plane on the longitudinal axis 10, while the spacing means 11 are aligned essentially parallel to the longitudinal axis 10 itself. In this way, a particularly space-saving construction with easily controllable kinematic relationships is achieved.

The figures clearly show that the plate-shaped cooling element 6 and the carrier plate 4 are approximately the same size in order to achieve the maximum cooling performance. The cooling element 6 covers approximately 85 to 90% of a contour area or a base area of the carrier plate 4. Both the carrier plate 4 and the plate-shaped cooling element 6 have a substantially rectangular outline.

The carrier plate 4 also has a recess 15 in the area of the outlet opening 5, which is designed such that the base section 8 of the holding element 7 can be sunk into it. In the present embodiment, this is achieved in that an outline of the recess 15 essentially corresponds to an enlarged outline of the base section 8. The remaining section of the carrier plate 4 forming the outlet opening 5 is small compared to a depth of the recess 15.

Accordingly, the spacing means 11 and the plate-shaped cooling element 6 are arranged on the installation side 4b of the carrier plate 4, wherein the spacing means 11 remain operable from the visible side 4a.

The spacing means 11 each have an actuating section 11a and a threaded section 11b, wherein the threaded section 11b is in engagement with a counter thread 12 of the cooling element 6, in the present embodiment a threaded bore. In the present embodiment, the spacing means 11 are designed as screws, in particular as countersunk head screws, wherein the actuating section 11a corresponds to the screw head.

In order to keep the spacing means 11 stationary relative to the carrier plate 4 so that the spacing means 11 can be supported on the carrier plate 4, the carrier plate 4 has three bearing pockets 13, wherein two bearing pockets 13 are arranged on one long side of the carrier plate 4 and one bearing pocket 13 is arranged on the opposite side, in Fig.1 on the longitudinal side of the carrier plate 4 facing the viewer. The bearing pockets 13 are open laterally, i.e. in a direction normal to the longitudinal axis 10, and in the direction of the installation side 4b, so that the spacing means 11 can be inserted laterally into the bearing pockets 13 (see arrows in Fig.1 ). The bearing pockets 13 are shaped like dovetail grooves, so that the actuating sections 11a of the spacing means 11 are rotatable but held stationary in the bearing pockets 13. If the spacing means 11 are inserted and the threaded sections 11b are screwed to the corresponding counter threads 12 of the cooling element 6, the mounting system 1 is stable in itself and can be gripped from all sides without the components coming loose from one another. This is due, among other things, to the arrangement of the bearing pockets 13 on opposite side surfaces of the carrier plate 4.

In alternative embodiments, in particular when the spacing means 11 are designed as cylinder head screws, the bearing pockets 13 can also be designed as T-slots.

In order to be able to operate the actuating sections 11a of the spacing means 11 from the visible side 4a even in the assembled state, the bearing pockets 13 each have an actuating opening 14 (see Fig.3 ) in order to be able to actuate the corresponding actuating section 11a, for example with a suitable tool, such as a screwdriver. The functioning of the invention is explained in detail in a separate section.

Fig.1 also shows an embodiment of a lamp 2 that can be inserted into the mounting element 7, in particular into the receiving section 9, wherein the lamp 2 has a circuit board 24 on its installation side. When the lamp 2 is inserted, it is held in the mounting element 7 in such a way that the circuit board 24 contacts the cooling element 6, so that the heat generated in the circuit board 24 can be dissipated. The geometric shape of the circuit board 24 corresponds in sections to the shape of the connection board 23 inserted into the mounting element 7, as in connection with the Figures 22 to 24 is discussed in detail. The luminous element 2 is preferably an LED luminous element.

In Fig.4 a further embodiment of the mounting system 1 is shown, which differs essentially from the previously described embodiment in that instead of a carrier plate 4 with outlet opening 5 and a mounting element 7 for a lamp 2, a carrier plate 4 with two outlet openings 5 and two mounting elements 7 is provided, so that two lamps 2 can be attached and supplied with power by means of the mounting system 1.

A further aspect of the invention relates to the task of how the mounting system 1 can be designed to be adaptable with as little effort as possible in order to be able to be attached to differently designed wall or ceiling elements 3. In the present embodiment, variable elements 20 are used. After a brief discussion of the basic structure of the variable elements 20 using the Figures 1 and 5 The installation on wall and ceiling elements 3 in two different construction types is described in detail as an example: on the one hand, the solid construction (see Figures 7, 8, 9 , 20 and 21 ) and on the other hand the dry construction method (see Figures 10 to 15 , 18 and 19 ).

Each Varioelement 20 has at least two spacer elements 18 as well as a tab section 19.

In the present embodiment, each Varioelement 20 also has an additional sleeve-shaped spacer element 18a, which functions as an extension of a fastening opening 16 of the carrier plate 4 when the Varioelement 20 is correctly connected to the carrier plate 4.

The spacer elements 18, 18a extend from a top side 20b of the Vario elements 20 in the direction of the longitudinal axis 10 and serve to support the mounting system 1 in the assembled state on a section of the ceiling or wall element 3 located behind the cooling element 6. For this purpose, the spacer elements 18, 18a have a predefined height, i.e. extension in the direction of the longitudinal axis 10, in order to determine an installation depth of the mounting system 1. The function of the spacer elements 18, 18a becomes clear in connection with the following explanations regarding the solid construction.

In Fig.2 The essentially rectangular outline of the plate-shaped cooling element 6 can be clearly seen, wherein the cooling element 6 has several recesses on the sides for the passage of the spacer elements 18,18a.

The tab sections 19 of the variable elements 20 extend in a plane normal to the longitudinal axis 10 and, in the present embodiments, have a grid-like structure with a large number of holes. The tab sections 19 are designed so that the mounting system 1 can be supported on the sections of the ceiling or wall element 3 that laterally surround the carrier plate 4. This function will also become clear below in connection with the explanations on dry construction.

A decisive advantage of the Vario elements 20 is that the mounting systems 1 with the same components can also be used for ceiling or wall elements 3 of different construction types, in particular for solid construction and dry construction, whereby only the Vario elements 20 have to be changed, in particular repositioned.

In the Figures 1 to 3 the mounting system 1 is shown with "folded" tab sections 19, wherein the Vario elements 20 are connected to the carrier plate 4 in such a way that the tab sections 19 do not protrude beyond an outline of the carrier plate 4 (see in particular Fig.2 and among others Fig.7 ). Such a configuration is particularly suitable for use in solid construction ceiling or wall elements 3.

Figure 5 shows the steps that are necessary to transfer the Varioelement from the first configuration to the second configuration (see arrow illustration). The corresponding Varioelement 20 is first detached from the carrier plate 4, then rotated 180° around its own axis and finally reconnected to the carrier plate 4. In this second configuration (see among others Fig.5 and Fig. 16 ), the tab sections 19 project laterally beyond the outline of the carrier plate 4 so that the mounting system 1 can be supported outside the outline of the carrier plate 4.

The connection of the Vario elements 20 to the carrier plate 4 is made via retaining grooves 21, which are provided in the carrier plate 4, on the one hand, and via retaining elements 22 attached to the Vario elements 20, which can be inserted into the retaining grooves 21. The retaining grooves 21 and retaining elements 22 are designed in the illustrated embodiments according to the tongue and groove principle, with the retaining grooves 21 being designed as dovetail grooves. This construction is particularly good in the Fig. 17 shown sectional view. Due to this geometric shape of the holding grooves 21 or the holding elements 22, the holding elements 22 can be held stationary and the tab sections 19 can be used for support in the second configuration.

The holding elements 21 are arranged on the underside 20a of the Vario elements 20 facing the carrier plate 4, i.e. on the side of the Vario elements 20 opposite the spacer elements 18, 18a. Since the holding elements 21 are arranged asymmetrically on the Vario element 20 with respect to the tab section 19 and the spacer elements 18, 18a, namely in that area of the Vario elements 20 which is not the tab section 19, it can be ensured in a simple manner that the tab sections 19 do not protrude beyond the outline of the carrier plate 4 in the first configuration when the holding elements 22 are fully inserted into the holding grooves 21.

The previously described change between the two configurations of the Vario elements 20 can also be realized in a structurally simple manner by using retaining grooves 21 and retaining elements 22.

The Figures 7 to 9 show, as previously announced, a ceiling or wall element 3 which is designed in solid construction and thus comprises a solid body 26. The mounting system 1 according to the invention is introduced into an installation cavity 27 of the solid body 26 and anchored to a bottom wall 27a of the installation cavity 27. A solid body 26 can for example, a concrete ceiling in which the installation cavity 27 is formed by a formwork body during the concrete pouring. Due to the low construction height and installation depth of the mounting system 1, the installation cavity 27 can have a relatively small depth so that, for example, steel reinforcements are not affected.

The variable elements 20 of the mounting system 1 are brought into the first configuration before assembly, so that the tab sections 19 do not protrude beyond the outline of the carrier plate 4. In the Figures 8 and 9 In the sections shown with offset cutting lines, one of the spacing means 11 can be seen in section on the one hand and one of the variable elements 20, in particular the sleeve-shaped spacer element 18a, on the other hand.

To mount the mounting system 1 in the installation cavity 27, first fastening elements 17 are guided through the fastening openings 16 and the sleeve-shaped spacer elements 18a and anchored in the base wall 27a. The first fastening elements 17 are preferably fastening screws.

The spacer elements 18, 18a rest against the bottom wall 27a of the installation cavity 27 and support the carrier plate 4. The depth of the installation cavity 27 and the height of the spacer elements 18, 18a thus also make it possible to achieve an essentially flush finish between the visible side 4a of the carrier plate 4 and the ceiling or wall element 3.

By comparing the Figures 8 and 9 The functionality of the spacing means 11 is now also apparent at a glance. The spacing means 11 serve to position the cooling element 6 along the longitudinal axis 10 relative to the carrier plate 4. This makes it possible to vary a projection 9a of the receiving extension 9 protruding from the carrier plate 4. While the projection 9a in Figure 8 is relatively small, the distance between the cooling element 6 and the carrier plate 4 is relatively large. By activating the actuating sections 11a of the spacing means 11, i.e. in the present embodiment by turning the screws, the cooling element 6 is moved in the direction of the carrier plate 4 by means of the interaction of the threaded sections 11b and the counter thread 12. The distance between the carrier plate 4 and the cooling element 6 is thus reduced, while the projection 9a increases accordingly.

The Figures 10 to 12 show, as previously announced, a ceiling or wall element 3 which is constructed in dry construction and thus comprises a dry construction element 28. The mounting system 1 according to the invention is introduced into an installation opening 29 of the dry construction element 28, the variable elements 20 being brought into the second configuration before assembly so that the tab sections 19 protrude beyond the outline of the carrier plate 4. As a result, the tab sections 19 rest on the dry construction element 28 and can be fixed to the dry construction element 28 by means of second fastening elements 20, preferably fastening screws. The spacer elements 18, 18a of the variable elements 20 are present, but do not fulfill any additional technical functions.

The cut in the Figures 11 and 12 is analogous to the one related to the Figures 8 and 9 discussed cutting line. The functionality of the spacing means 11 can also be seen directly in these figures, which will not be discussed again.

The Figures 13 to 15 show the mounting system 1 attached to a drywall element 28 in a plastered state, in which a plaster layer 31 is applied to the visible side of the ceiling or wall element 3 and the support element 4, so that of the mounting system 1 only the mounting element 7, in particular its receiving extension 9, and the luminous element 2 inserted into the mounting element 7 are visible.

From the comparison of the Figures 14 and 15 (in conjunction with the Figures 8 and 9 or 11 and 12) the purpose of the spacing means 11 for varying the projection 9a now becomes clear. Due to the variability of the projection 9a, the mounting system 1 can be adapted to different thicknesses of plaster layers 31 or, if necessary, filler layers: For a thin plaster layer 31 (see Fig. 14 ), a small overhang 9a is required to ensure that the receiving extension 9 or a final edge 9b of the receiving extension 9 is flush with the plaster layer 31. On the other hand, to compensate for a correspondingly thicker plaster layer 31 (see Fig. 15 ) a larger projection 9a is required. Since the projection 9a can be adjusted directly via the spacing means 11 in the assembled state before the plaster layer 31 is applied, the mounting system 1 according to the invention is particularly user-friendly and easy to handle.

In the Figures 16 and 17 As already mentioned in connection with the description of the Vario elements 20, an embodiment of the mounting system 1 is shown in which the Vario elements 20 are brought into the second configuration so that the tab sections 19 project laterally beyond the carrier plate 4. Figure 17 illustrates the connection of the Vario elements 20 to the carrier plate 4.

The Figures 18 to 21 To clarify the previous description, three-dimensional images of the two different installation situations after plastering are shown. Figures 18 and 19 show the mounting system 1 attached to the drywall element 28 and plastered (cf. Figures 10 to 15 ) while the Figures 20 and 21 show the mounting system 1 attached to the solid body 26 and plastered.

The Figures 22 to 25 show in detail the structure of the mounting element 7, the connection board 23 as well as their assembly and connection to the plate-shaped cooling element 6.

The mounting element 7, which supports the base section 8 adjacent to the cooling element 6 (cf. Fig. 24 ) and the receiving extension 9, which in the installed state covers the projection 9a protruding from the carrier plate 4 (see among others Fig.9 ). In the present embodiment, the base section 8 and the receiving extension 9 are formed in one piece, preferably as a plastic injection-molded part. The base section 8 has a receiving base 8a at the transition to the receiving extension 9, which together with the receiving extension 9 forms a receiving volume 32 in the form of a circular cylinder, into which receiving volume 32 the luminous element 2 can be inserted.

In the present embodiment, the connection board 23 consists of a connection section 34 and a contact section 33. The connection section 34 serves to connect the connection board 23 with corresponding connection lines 37 (see Fig. 24 ), for which purpose the connection section 34 has a connection element 34a, which connection element 34a in the present case is designed as a connection terminal for two connection lines 37.

The contact section 33 comprises a first contact projection 33a, a second contact projection 33b and a crescent-shaped connecting web 33c connecting the two contact projections 33a, 33b. Not shown are conductor tracks of the connection board 23, which conductor tracks electrically connect the connection element 34a to the respective contact projection 33a, 33b.

In order to be able to insert the connection board 23 into the holding element 7, the receiving base 8a has two slots 35,36 in a boundary wall of the receiving volume 32, through which slots 35,36 the contact projections 33a,33b protrude into the receiving volume 32 when the connection board 23 is inserted (see Fig.7 ). The contact projections 33a, 33b serve both for the electrical contact of the inserted luminous element 2 as well as for locking the inserted luminous element 2. It is advantageous if the circuit board 24 of the luminous element 2 has recesses corresponding to the contact projections 33a, 33b (see Fig.1 ), wherein the luminous element 2 is rotated by an angle between 45° and 180° after insertion in order to be locked in the receiving volume 32 by means of the contact projections 33a, 33b.

The slots 35, 36 or their centers are offset from one another by approximately 180° with respect to the longitudinal axis. The same applies analogously to the contact projections 33a, 33b or their centers, which correspond to the slots 35, 36.

In order to insert the connection board 23 into the holder element 7, the first contact projection 33a is first inserted into the first slot 35 of the receiving base 8a, with the connection board 23 being inclined or pivoted about the longitudinal axis 10 compared to the position shown. The connection board 23 is then pivoted back about the longitudinal axis 10 until the second contact projection 33b protrudes through the second slot 36 into the receiving volume 32. The sickle-shaped connecting web 33c rests on the outside of the receiving base 8a.

Figure 23 shows the state of the connection board 23 inserted into the holding element 7. Of course, the steps can also be carried out in reverse to remove the connection board 23 from the holding element 7, since the described embodiment enables reversible insertion and removal.

The base section 8 of the support element 7 further comprises a cover 8b, which is connected to the support element 7 via a joint section 8c. The cover 8b and the joint section are also formed in one piece with the base section 8, so that the entire support element 7 can preferably be produced as a plastic injection-molded part. The cover 8b serves to enclose the connection element 34a and can be folded over the joint section 8c and locked with a locking section.

Fig. 24 shows a system comprising the plate-shaped cooling element 6, to which the previously described mounting element 7 with inserted connection board 23 is attached via connecting elements 25. Furthermore, the end sections of the connection lines 37 are accommodated in the connection element 34a in order to establish the electrical contact with the connection board 23. The cover 8b of the base section 8 is opposite to the representation in the Figures 22 and 23 already pivoted by approximately 90° around the joint section 9c.

Fig. 25 shows the system Fig. 24 , with the cover 8b closed and locked. It can also be seen that the connecting cables 37 are led out of the cover 8b via two clamping openings 8d. Due to the clamping openings 8d, the cover 8b functions as a strain relief for the connecting cables 37 when closed and locked. The cover 8b also protects the user from contact with live elements.

• die Höhe des Halterungssystems 1, sprich die maximale Abmessung in Richtung der Längsachse 10, welche der Einbautiefe entspricht, kann zwischen 15 und 60 mm, insbesondere im Bereich von 25 +/- 5mm liegen, was einen besonders platzsparenden Einbau ermöglicht;
• ein lichter Durchmesser des Aufnahmefortsatzes 9 bzw. des Aufnahmevolumens 32 kann zwischen 10 mm und 45 mm, insbesondere zwischen 25 mm und 30 mm liegen - dieser korreliert direkt mit einem Durchmesser des einsetzbaren Leuchtkörpers 2;

• die Umrissfläche des plattenförmigen Kühlelements 6 kann wesentlich größer sein, als eine Kontaktfläche der Platine 24 des eingesetzten Leuchtkörpers 2, vorzugsweise eines LED Leuchtkörpers, wobei die Kontaktfläche der Platine 24 näherungsweise einer Querschnittsfläche des Aufnahmevolumens 32 entspricht; vorzugsweise beträgt die Umrissfläche des Kühlelements 6 das Dreißigfache bis das Sechzigfache der Kontaktfläche der Platine 24, insbesondere das Fünfzigfache der Kontaktfläche der Platine 24;
• durch das Verhältnis der Umrissfläche des plattenförmigen Kühlelements 6 und der Kontaktfläche der Platine 24 kann ein besonders hoher Lichtstrom durch den Leuchtkörper 2 erzeugt und beibehalten werden, welcher entsprechend zwischen 500 und 2000 lm, vorzugsweise zwischen 1000 und 1200 lm liegen kann.

Due to the structure of the mounting system 1 according to the invention, in particular due to the combination of the mounting element 7 and the plate-shaped cooling element 6 (cf. Fig. 22 to 25 ) the following dimensions and properties can be achieved:

• the height of the mounting system 1, i.e. the maximum dimension in the direction of the longitudinal axis 10, which corresponds to the installation depth, can be between 15 and 60 mm, in particular in the range of 25 +/- 5 mm, which enables a particularly space-saving installation;
• a clear diameter of the receiving extension 9 or the receiving volume 32 can be between 10 mm and 45 mm, in particular between 25 mm and 30 mm - this correlates directly with a diameter of the insertable luminous element 2;

• the outline area of the plate-shaped cooling element 6 can be significantly larger than a contact area of the circuit board 24 of the inserted luminous element 2, preferably an LED luminous element, wherein the contact area of the circuit board 24 approximately corresponds to a cross-sectional area of the receiving volume 32; preferably the outline area of the cooling element 6 is thirty times to sixty times the contact area of the circuit board 24, in particular fifty times the contact area of the circuit board 24;
• Due to the ratio of the outline area of the plate-shaped cooling element 6 and the contact area of the circuit board 24, a particularly high luminous flux can be generated and maintained by the luminous body 2, which can accordingly be between 500 and 2000 lm, preferably between 1000 and 1200 lm.

Although the previously described embodiments mostly show the principle of the spacing means 11 in combination with the variable elements 20, it should be noted for the sake of clarity that the two technical concepts function independently of one another and, although they work together synergistically, do not require one another. It is also conceivable that instead of using variable elements 20, which have both spacer elements 18, 18a and tab sections 19, spacers or fastening tabs can also be used if variability is not required. Finally, the Figure 24 The combination of cooling element 6, mounting element 7 and connection board 23 shown can also be used without the support element 4 and/or spacing means 11 being provided. For example, this arrangement can be plastered directly into a plaster layer 31.

LIST OF REFERENCE SYMBOLS

1

Mounting system

2

Luminaires

3

Ceiling or wall element

4

Carrier plate
4a Visible side of the carrier plate
4b Installation side of the carrier plate

5

Outlet opening

6

Cooling element

7

Mounting element

8th

Base section of the support element
8a Recording base
8b Cover
8c Joint section
8d clamp opening

9

Support extension of the mounting element
9a Overhang
9b End edge

10

Longitudinal axis

11

Spacing agents
11a Operating section
11b Thread section

12

Counter thread

13

Storage bag

14

Operating opening

15

Recess

16

Mounting opening

17

first fastening element

18

Spacer element
18a sleeve-shaped spacer element

19

Tab section

20

Vario element
20a Bottom of the Varioelement
20b Top of the Varioelement
21 Retaining groove
22 Holding element
23 Connection board
24 Circuit board of the luminaire
25 Connecting element
26 solid bodies
27 Installation cavity
27a Floor wall
28 Drywall element
29 Installation opening
30 second fastening element
31 Plaster layer
32 Recording volume
33 Contact section
33a first contact projection
33b second contact projection
33c Connecting bridge
34 Connection section
34a Connection element
35 first slot
36 second slot
37 Connection cable

Claims (19)

1. A mounting system (1) for attaching at least one luminaire (2) to a ceiling or wall element (3), comprising:

   - a support plate (4) with an outlet opening (5), wherein the support plate (4) has a visible side (4a) and an installation side (4b) facing away from the visible side (4a);

   - a plate shaped cooling element (6) which is arranged on the installation side (4b) of the support plate (4) ;

   - a mounting element (7) for receiving and releasably locking a luminaire (2) in order to contact a circuit board (24) of the luminaire (2) with the cooling element (6);

   - wherein the mounting element (7) comprises a base section (8) and a receiving extension (9) extending away from the base section (8) along a longitudinal axis (10),

   - wherein the base section (8) is attached to the cooling element (6) and the receiving extension (9) is guided at least in sections through the outlet opening (5) of the support plate (4),

   characterized in that

   - the support plate (4) is connected to the cooling element (6) via spacing means (11),

   - wherein the spacing means (11) are designed in such a way that the cooling element (6) can be positioned along the longitudinal axis (10) relative to the support plate (4) by an actuation of the spacing means (11),

   - such that an overhang (9a) of the receiving extension (9) projecting out of the outlet opening (5) of the support plate (4) onto the visible side (4a) can be varied,

   - wherein the spacing means (11) are actuatable from the visible side (4a) of the support plate (4).
2. The mounting system (1) according to claim 1, characterized in that the spacing means (11) respectively comprise an actuating section (11a) mounted in the support plate (4) and a threaded section (11b), wherein the threaded section (11b) is screwed with a mating thread (12) of the cooling element (6).
3. The mounting system (1) according to claim 2, characterized in that the support plate (4) has mounting pockets (13) for each spacing means (11) open both laterally and also in the direction of the installation side (4b) for stationary mounting of the actuating section (11a) in the direction of the longitudinal axis (10), and each mounting pocket (13) is accessible from the visible side (4a) of the support plate (4) via an actuating opening (14).
4. The mounting system (1) according to one of claims 1 to 3, characterized in that the support plate (4) has a recess (15) in the area of the outlet opening (5) on the installation side (4b), wherein the recess (15) is dimensioned in such a way that the base section (8) of the mounting element (7) can be recessed in the recess (15) at least in sections due to the relative movement between the support plate (4) and the cooling element (6) .
5. The mounting system (1) according to one of claims 1 to 4, characterized in that the mounting system (1) comprises at least two mounting brackets for supporting the mounting system (1) outside of an outline of the support plate (4), wherein the mounting brackets are connected to the support plate (4) and respectively have a tab section (19) extending in a plane normal to the longitudinal axis (10), wherein the tab sections (19) project past the outline of the support plate (4) at least in sections, wherein the mounting system (1) can be attached to a section of the ceiling or wall element (3) laterally surrounding the support plate (4) by means of the tab sections (19) .
6. The mounting system (1) according to one of claims 1 to 4, characterized in that the mounting system (1) further comprises at least two spacers for specifying an installation depth, wherein the spacers are connected to the support plate (4) and respectively have at least two spacing elements (18, 18a) projecting from the installation side (4b) in the direction of the longitudinal axis (10).
7. The mounting system (1) according to one of claims 1 to 4, characterized in that the mounting system (1) comprises at least two variable elements (20), wherein each variable element (20) has a tab section (19) extending in a plane normal to the longitudinal axis (10), and at least two spacing elements (18, 18a) extending in the direction of the longitudinal axis (10), wherein the variable elements (20) are designed in such a way that the variable elements (20) can be connected to the support plate (4) in two configurations:

   - in a first configuration, the variable elements (20) are connected to the support plate (4) such that the tab sections (19) lie completely within an outline of the support plate (4), by which means the variable elements (20) essentially satisfy the function of spacers for specifying an installation depth;

   - in a second configuration, the variable elements (20) are connected to the support plate (4) such that the tab sections (19) project past the outline of the support plate (4), by which means the variable elements (20) essentially satisfy the function of fastening tabs to support the mounting system (1) outside of the outline of the support plate (4).
8. The mounting system (1) according to claim 7, characterized in that the support plate (4) has at least one laterally open holding groove (21) for each variable element (20),

   each variable element (20) has at least one holding element (22) on an underside (20a) facing away from the spacers (18) and designed to be accommodated in the corresponding holding groove (21),

   wherein the holding element (22) can be pushed into the holding groove (21) in order to hold the variable element (20) stationary in the direction of the longitudinal axis (10),

   and wherein the holding element (22) does not extend into the area of the tab section (19).
9. The mounting system (1) according to one of claims 6 to 8, characterized in that the support plate (4) has at least two fastening openings (16), wherein at least two of the spacers (18) are designed as sleeve-shaped spacers (18a), which sleeve-shaped spacers (18a) are positioned coaxially to the fastening openings (16), so that first fastening elements (17) can be guided through the fastening openings (16) and the respective sleeve-shaped spacers (18a), the mounting system (1) can be attached by means of said first fastening elements (17) to a section of the ceiling or wall element (3) lying behind the cooling element (6) when viewed in the direction of the longitudinal axis (10).
10. The mounting system (1) according to one of claims 1 to 9, characterized in that the mounting system (1) comprises at least one additional mounting element (7), and the support plate (4) has an additional outlet opening (5) for each additional mounting element (7).
11. The mounting system (1) according to one of claims 1 to 10, characterized in that the cooling element (6) covers at least 75 %, preferably at least 85 %, particularly at least 90 % of an outlined surface of the installation side (4b) of the support plate (4).
12. The mounting system (1) according to one of claims 1 to 11, characterized in that the at least one mounting element (7) is designed as one piece, wherein the receiving extension (9) and a receiving base (8a) adjacent to the receiving extension (9) form a mutual, preferably circularly cylindrical receiving volume (32) for the luminaire (2).
13. The mounting system (1) according to one of claims 1 to 12, characterized in that the mounting system (1) further has a connection circuit board (23) inserted into the base section (8) of the mounting element (7) for electrical contacting and/or locking of the luminaire (2).
14. The mounting system (1) according to claim 12 and claim 13, characterized in that the connection circuit board (23) has a connection section (34) and a contacting section (33),

    wherein the connection section (34) is designed to establish an electrical connection with connection cables, and

    wherein the contacting section (33) comprises at least one first contact projection (33a) and one second contact projection (33b), wherein the contact projections (33a, 33b) project into the receiving volume (32) and are designed in such a way that the luminaire (2) can be electrically contacted by means of the contact projections (33a, 33b) and can be locked in the receiving volume (32).
15. The mounting system (1) according to claim 14, characterized in that the receiving volume (32) has the shape of a circular cylinder, whose axis coincides with the longitudinal axis (10),

    the receiving base (8a) has a first slot (35) and a second slot (36), offset in a circumferential direction, for guiding the contact projections (33a, 33b) through,

    and the connection circuit board (23) is formed in such a way that the connection circuit board (23) can be inserted, preferably reversibly, into the base section (8a) of the mounting element (7), in that the first contact projection (33a) is inserted into the first slot (35) and the connection circuit board (23) is subsequently pivoted with respect to mounting element (7) until the second contact projection (33b) is received in the second slot (36).
16. Use of a mounting system (1) according to one of claims 1 to 4 or one of claims 6 to 15 for attaching at least one luminaire (2) for attaching at least one luminaire (2) to a ceiling or wall element (3) designed as solid construction, wherein the ceiling or wall element (3) designed as solid construction has a prefabricated installation cavity (27) in a solid body (26), and wherein the support plate (4) has at least two fastening openings (16),

    wherein the mounting system (1) is introduced into the installation cavity (27),

    wherein first fastening elements (17) are subsequently guided through the fastening openings (16) and are anchored in a bottom wall (27a) of the installation cavity (27).
17. Use of a mounting system (1) according to one of claims 5, 7, or 8, or according to a claim dependent on these claims, for attaching at least one luminaire (2) to a ceiling or wall element (3) designed as drywall construction, the ceiling or wall element (3) comprising at least one drywall construction element (28),

    wherein the at least one drywall construction element (28) has an installation opening (29) corresponding to an outline of the support plate (4),

    wherein the mounting system (1) is inserted into the drywall construction element (28) via the installation opening (29) such that the tab sections (19) support the mounting system (1) on the drywall construction element (28),

    wherein second fastening elements (30) are subsequently anchored in the tab sections (19) via the the drywall construction element (28) in order to fix the mounting system (1) on the drywall construction element (28).
18. Use of a mounting system (1) according to one of claims 7 to 8, or according to a claim dependent on these claims, for attaching at least one luminaire (2) to a ceiling or wall element (3) designed as a solid construction or as drywall construction,

    wherein the variable elements (20)

    - are either connected in the first configuration to the support plate (4) and the ceiling or wall element (3) is designed as solid construction, wherein the ceiling or wall element (3) designed as solid construction has a prefabricated installation cavity (27) in a solid body (26), and wherein the support plate (4) has at least two fastening openings (16),

    wherein the mounting system (1) is inserted into the installation cavity (27) until the spacers (18, 18a) contact a bottom wall (27a) of the installation cavity (27), wherein first fastening elements (17) are subsequently guided through the fastening openings (16) and anchored in the bottom wall (27a),

    - or are connected in the second configuration to the support plate (4) and the ceiling or wall element (3) is designed as drywall construction, the ceiling or wall element (3) comprising at least one drywall construction element (28),

    wherein the at least one drywall construction element (28) has an installation opening (29) corresponding to an outline of the support plate (4),

    wherein the mounting system (1) is inserted into the drywall construction element (28) via the installation opening (29) such that the tab sections (19) support the mounting system (1) on the drywall construction element (28),

    wherein second fastening elements (30) are subsequently anchored in the tab sections (19) via the drywall construction element (28) in order to fix the mounting system (1) on the drywall construction element (28).
19. Use of a mounting system (1) according to one of claims 1 to 15, or use according to one of claims 16 to 18, wherein, according to the attachment carried out of the mounting system (1) on the ceiling or wall element (3), the overhang (9a) of the receiving extension (9) is adjusted with respect to the support plate (4) using the spacer means (11) from the visible side (4a),
    and a plaster layer (31) is subsequently applied to the ceiling or wall element (3) and to the visible side (4a) of the support plate (4), wherein the plaster layer (31) connects flush with a finishing edge (9b) of the overhang (9a).

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