SYSTEM FOR ASSEMBLING A FURNITURE

Description

[0001] The invention relates to a system for constructing a piece of furniture or an exhibition stand according to the preamble of claim 1.

[0002] Within the scope of this invention, the term "supporting structure" is understood to mean a structure that is designed and suitable to be a load-bearing element of a piece of furniture or an exhibition stand. The supporting structure is planar or at least partially surrounds a surface and has several lateral edges with interfaces for connection to other system components. The supporting structure can also be designed as a frame on which further elements, such as a tabletop, can be arranged.

[0003] Within the scope of this invention, the term "interface" is understood to mean a component that is arranged as a separate element in recesses of a support structure. The interfaces thus form connection points for any elements and connections as well as for accessories. Counterparts are attached to the interfaces to fasten these elements and connections as well as the accessories; these counterparts then come into operative contact with the interfaces.

[0004] Within the scope of this invention, the term "positioning element" is understood to mean an element by which the supporting structure can be braced against the ground, for example, or to which at least one further supporting structure or other elements can be connected. The positioning elements can be attached to the corresponding counterparts at the interfaces and thus attain any desired position in space. Preferably, the positioning element is a leg for erecting the supporting structure.

[0005] Various systems for constructing furniture, such as tables, cabinets, shelves, and the like, as well as for erecting exhibition stands, are known in the prior art. These systems typically involve connecting a supporting structure, such as a tabletop, shelf, or seating surface, to corresponding support elements, such as table legs, that brace the supporting structure against the substrate. This connection is usually achieved by attaching the support elements to the underside of the supporting structure. By attaching them to the surface of the supporting structure, the furniture is prevented from using the supporting structure in other ways; in particular, the supporting structure cannot be used on both sides.

[0006] From DE 103 42 994 A1, which forms the basis of the preamble of the independent claims, connecting elements are known that are used to connect plate-shaped support elements for the construction of a temporary wall. The support elements are placed onto the connecting element to connect the support elements in a hinge-like manner, forming a releasable, articulated, and torsionally rigid connection as described in paragraph

[0007] . Torsionally rigid means that a torsionally rigid bearing, like a door hinge, is created on one support element, while the other support element is rotatably mounted on it.

[0007] From DE 20 2011 102 717 U1, a table is known in which the assembly, table extension, table connection, and the double-sided usability of a tabletop are integrated into a uniformly modular, plug-in system. For this purpose, the corners of the tabletop have cylindrical recesses with adjoining edge-mounted notches, to which two anchoring rails made of flat material are attached along the edge, i.e., on the end faces of the edges. The notches engage with the tabletop surfaces.

[0008] From DE 295 17 113 U1, a table with a frame is known, which is constructed from interconnected frame profiles. The frame has table legs that can be attached to the frame profiles at any freely selectable point and optionally connectors for other tables and / or desk accessories. A tabletop rests on the frame profiles. The frame profile has a rectangular cross-section and a circumferential groove for attaching table legs and accessories.

[0009] DE 19 46 626 A discloses a table consisting of two trestles arranged at the narrow ends and a U-shaped tabletop clamped between them. The tabletop is provided with an angled frame along its longitudinal edges, with tensioning elements arranged at the ends of the tabletop and additionally at the frame, and which can be tightened from the underside of the tabletop and the inside of the frame. The tabletop forms a U and cannot be turned over.

[0010] The FR 1 327 143 A describes a common method of attaching table legs to a tabletop using wing nuts that are slidable along a rail.

[0011] From DE 198 03 103 A1, a variable table frame with a rotating and reversible tabletop is known, under which any desired feet can be attached in bores or receptacles, rotating along the longitudinal axis. Square panels can then be arranged on these mounting surfaces in any desired configuration. These panels have openings, holes, or other recesses at the vertical butt joints of the rotating and reversible tabletops to connect other panels, thereby forming corresponding large-area composite surfaces.

[0012] DE 10 2010 042 973 A1 discloses a connecting device for joining furniture components, comprising fittings and sleeves. The fittings are designed for attachment to the furniture components. The sleeve has a retaining section that can be engaged with retaining elements of the third furniture component by rotating the sleeve relative to the furniture component about a longitudinal axis of the sleeve. The first and second fittings each have a connecting section, and the connecting sections can be inserted into an interior of the sleeve from an end face. The table leg is mounted on a split table connector. Support profiles for the tabletop are mounted on the table leg.

[0013] For the modular construction of a shelf with accessories, US Patent 2015 / 0313357 A1 discloses the use of a wall with a panel and a bracket. The panel has horizontal bars, and the bracket has a first and second opening. The first and second openings are dimensioned to accommodate at least one of the openings of the horizontal bar. The bracket also includes a rivet for attaching the wall to the shelf.

[0014] EP 0 367 857 A1 describes a device for the detachable, hinged connection of panel-shaped wall elements in their service state. For this purpose, hinge sleeves are inserted into the vertically downward-pointing end edges of the wall panels, thereby forming simple panel hinges between several panels. The connection is hinged and therefore cannot fix the supporting structure in a fixed position, so that more than one panel-shaped element is always required.

[0015] From DE 699 18 676 T2, joinable table components are known that are connected to one another via a separate connecting piece. The connection is not only made laterally at the edges, but the corresponding actuation mechanisms are provided in other surfaces of the top and bottom of the tabletop. Despite the lateral interface, a direct connection of the tabletop elements is not possible.

[0016] CN 207349213 U shows a simple panel connector, optionally with 45° inclined surfaces, for joining several panel sections to form a piece of furniture. At least one end surface has a chamfer.

[0017] WO 2012 / 095454 A1 shows a simple panel and cabinet connector that cannot be disconnected once fixed. The connectors engage with end or top surfaces and have an additional function. They are simply clicked into place and remain there until the connection is destroyed.

[0018] From FR 3 056 652 A1, T-slot cutouts with inserts in the plate are known, whereby not only the edge but also the adjacent surface of the plate-shaped element is used. It is a simple connector with a protruding clamping pin. The connections are not designed for permanent modification; that is, they are assembled only once.

[0019] Based on this state of the art, the present invention aims to create a flexible, modular system with interfaces at the edges of a supporting structure, through which all functions of a piece of furniture can be covered.

[0020] This problem is solved by a system for assembling a piece of furniture or an exhibition stand with the features of claim 1. Advantageous further developments are the subject of the dependent claims. The features listed individually in the claims can be combined with one another in a technologically meaningful way and can be supplemented by explanatory facts from the description and by details from the figures, thereby showing further embodiments of the invention.

[0021] The functions to be covered include the connection of positioning elements such as a table leg, as well as the connection of accessory elements, functional elements for example for the design of a long table or for the inclusion of any supports for elements that are usually provided on, at, under and next to a piece of furniture.

[0022] The system initially comprises a supporting structure that is planar or at least partially surrounds a surface and, most importantly, has several lateral edges. At least two of these edges, preferably opposite each other, and in particular diametrically opposed edges, can have interfaces designed and suitable for connecting to other system components. The supporting structure is braced against the substrate by at least one actuating element, or at least one further supporting structure or other elements can be connected via such an actuating element. The actuating element can be positively and / or force-fitted to the interfaces of the at least one supporting structure located at the edges.

[0023] The interfaces are arranged as separate components within recesses in the lateral edges of the supporting structure and are at least partially integrated into it. At least one actuating element can be fixed to a counterpart at the respective interface. This allows an actuating element to be attached to the side of a supporting structure, resulting in a supporting structure with laterally arranged connection points. These connection points can be provided for any elements, connections, and accessories.

[0024] The recesses are cylindrical or elongated and / or the interface has a shape congruent to the recess and is designed to create a positive connection between the interface and the supporting structure after the interface is inserted into the recess.

[0025] Integrating the interfaces opens up diverse possibilities regarding the choice of materials for the supporting structure. For example, the tabletop could be a honeycomb panel with the interfaces integrated into it. Alternatively, a solid panel, such as solid wood, particleboard, or even a concrete panel, could be used as the supporting structure, featuring lateral cutouts for the interfaces.

[0026] The interfaces are designed so that at least one actuating element enters into operative contact with a counterpart or an element opposite to the interface. This occurs via positive locking and / or force locking, and if necessary also via material locking, to ensure a reliable and secure connection.

[0027] The counterpart has a safeguard against unintentional detachment from the interface according to one of the following solutions: Force-locking and form-locking connection of the counterpart with the interface, force-locking connection of the counterpart with the interface by means of magnetic forces, engagement of a locking element in an undercut, connection of several counterparts with each other.

[0028] Furthermore, the counterpart can be securely fastened to prevent rotation relative to the interface. This ensures the operational reliability that is particularly important in commercial applications.

[0029] The adjustable elements can be attached to the corresponding counterparts at the interfaces, allowing them to be fixed in any position within the space. This has the advantage that the supporting structure is only needed laterally for connecting further elements and for support on the floor; that is, the supporting structure itself is usable on both sides of the other surfaces and therefore reversible. At the same time, the structural prerequisites are created to connect all the components required in the area of ​​the furniture or exhibition stand in such a way that the supporting structure itself can remain unobstructed, for example, as a table surface for a workstation, completely free of other elements.

[0030] The supporting structure itself is a plate-shaped element, such as a tabletop. However, it can also serve as the supporting structure for a plate-shaped element, in which case the actual load-bearing structure, for example, a frame, is located beneath the tabletop and provides the interfaces for connecting further components. In both cases, the plate-shaped element remains untouched and therefore reversible. This results in a tidy and space-saving arrangement that can be adapted to the specific needs of the users, retrofitted, and expanded.

[0031] Preferably, the interface is an insert positioned at least partially within the recess, which, as a component independent of the supporting structure, can be added to the supporting structure entirely according to the manufacturer's wishes. The actuator or accessory can then be matched to this component, or conversely, the appropriate insert can be selected based on the actuator or accessory. This opens up a wide range of design possibilities.

[0032] In principle, interfaces of any design are possible as point or linear interfaces at any position on any edge. Besides the reversibility of the panel, since the top and bottom remain untouched, any positioning of the control elements, as well as other elements, is possible at any time. Existing systems can also be retrofitted, provided the edges are accessible and interfaces, such as fittings, can be placed in recesses there. For example, the legs for setting up a tabletop, seat, lounger, shelf, or leaning surface can be positioned not only at the four corners of a rectangular support structure, but at any other location, provided the structural integrity of the support structure is ensured.

[0033] Ideally, at least one support element can be attached transversely, preferably perpendicularly, to at least one supporting structure. This means it can support the supporting structure downwards towards the floor, but also attach other elements to the supporting structure in a suitable arrangement. This is advantageous if, in addition to a table, other furniture is to be assembled using the system. Examples include shelves, cabinets, containers, beds, sofas, or other furniture, as well as the construction of an exhibition stand.

[0034] Advantageously, at least one of the adjusting elements is a leg for setting up the at least one supporting structure, which is preferably a tabletop. This results in versatile design options for one and the same table, depending on where the legs are positioned. The adjusting element can also be designed as a lifting column or a height-adjustable leg, e.g., a telescopic leg, to enable height adjustment.

[0035] It is advantageous if the adjusting element can simultaneously be used to attach other system components, such as a seat, reclining surface, storage surface, leaning surface, headrest, armrest, or backrest. Any other elements are also conceivable, provided they can be attached to a supporting structure via an adjusting element. This increases the system's modularity and thus its versatility for the user.

[0036] In addition to the interfaces for attaching the positioning elements, additional interfaces can also be provided on the edges, either as a supplement or alternative, to attach accessories. It is an alternative and complementary advantage if the accessories can also be attached to the positioning elements mounted at the interfaces, as this allows one interface to serve multiple functions simultaneously. This has the advantage that additional elements, which are usually placed on the table or floor, can be attached to the support structure using the interfaces located on the sides.This includes, in particular, lighting, cable ducts, partitions, acoustic panels, monitor mounts, add-on tables, wastebaskets, storage compartments, drawers, speakers, planters, and, for worktables, all elements required for modern office operations, such as telephone holders or computer / workstation mounts (CPU holders). This has the advantage of freeing the tabletop from its function as a surface for permanently needed items, as these can now be attached peripherally to the edge of the supporting structure. Similarly, the floor can be cleared of items typically placed there, such as the wastebasket. This allows the entire table surface, including the keyboard, to be used for work and makes cleaning easier and faster.At the same time, elements such as the wastebasket become more ergonomically accessible, which also offers advantages in terms of room cleaning and occupational safety by avoiding tripping hazards.

[0037] The interfaces can also be used for coupling elements designed to connect to the interfaces of other supporting structures. Advantageously, this coupling element can simultaneously house an adjustment element, so that, if required, only one leg instead of several legs of the individual supporting structures can be provided at the interface. This also contributes to spatial design and safety. At the same time, this creates the possibilities for designing worktable-island combinations, room dividers, or exhibition stands, since a composite panel can be created from individual panels.

[0038] Preferably, the interfaces for the anti-rotation device against twisting of the interface relative to the supporting structure are optionally designed in one or more of the following ways: Regarding the recess, eccentric arrangement of an element for rotation protection, arrangement of several elements for rotation protection, creation of a positive-locking, non-rotatable connection between the interface and the supporting structure.

[0039] These alternatives ensure a reliable connection between the interface and the supporting structure, which can also safely transmit the forces that occur during use.

[0040] It is advantageous if the interface also has a safety device to prevent unintentional detachment from the supporting structure. At least one of the following solutions has proven helpful in this regard: mechanical connection or screwing of the interface to the supporting structure, material-locking connection of the interface to the supporting structure, passive clamping of the interface to the supporting structure by means of moldings, active clamping of the interface to the supporting structure by means of manually operable engagement elements.

[0041] This also ensures a reliable connection between the interface and the supporting structure, which can safely transmit the forces occurring during use.

[0042] Preferably, at least one actuating element is equipped with a leveling mechanism for the supporting structure, acting between the actuating element and the supporting structure. This is particularly advantageous when a supporting structure is to be supported by more than three actuating elements, as the system may then be statically indeterminate. Leveling can counteract any resulting wobbling or tipping. Simultaneously, the supporting structure can be aligned parallel to the ground or leveled, for example, to compensate for manufacturing tolerances.

[0043] Preferably, the counter-piece is secured against rotation relative to the interface in at least one of the following ways: Eccentric arrangement of a form-locking element opposite the interface; arrangement of several elements to prevent rotation; use of a buttress.

[0044] This also ensures good, secure and reliable fastening and power transmission at the connection between the counterpart and the interface.

[0045] According to the invention, the safeguard against unintentional detachment of the counterpart from the interface is at least one of the following solutions: Force-locking and form-locking connection of the counterpart with the interface, force-locking connection of the counterpart with the interface by means of magnetic forces, engagement of a locking element in an undercut, connection of several counterparts with each other.

[0046] This ensures the operational safety that is particularly necessary in the commercial sector.

[0047] Further advantages will become apparent from the following description of preferred embodiments and from the dependent claims. Brief description of the characters

[0048] The invention will now be explained in more detail with reference to exemplary embodiments illustrated in the figures. The figures show: Fig. 1a, 1-legged support structure in top and side view, Fig. 2, a support structure in top view with interfaces attached to it in a non-inventive manner, Fig. 3a, 3-legged support structure with adjusting elements arranged next to it in top and side view, Fig. 4a, 4-legged representation according to Fig. 3a, 3b with actuating elements attached at the interfaces, Fig. 5a, 5 a side view of a support structure equipped with actuating elements before and after the attachment of accessories, Fig. 6, 7 two support structures designed as tables with actuating elements, which are coupled to each other via a coupling element, before and after coupling by the coupling element, Fig. 8 a representation according to Fig. 7 with an actuating element attached to the coupling element, Fig. 9 a long table built from a support structure with actuating elements with static elements, Fig. 10 a long table with additional actuating elements arranged on the support structure, Fig. 11 a support structure with accessories attached to it, Fig. 12a, 12 a leg support structure with a plate-shaped element arranged on it in a view from below and from the side, Fig. 13 a top view of a support structure designed as a composite panel or sandwich panel, Fig. 14 an exploded view of the support structure that can be integrated into a panel with interfaces integrated therein, Fig. 15a, 15 leg support structure in top and side view with an alternative attachment of the actuating elements, Fig. 16a-16c a support structure with lifting columns as actuating elements, Fig. 17a, 17 leg support structure with height-adjustable actuating elements arranged on it, Fig.18a - 18c a supporting structure with alternatively shaped actuating elements arranged on it in top view, as well as a view from two different sides, Fig. 19 a side view of a supporting structure with actuating element, Fig. 20 a representation according to . Fig. 19 with an alternative actuating element, Fig. 21 a representation according to Fig. 19 with a further alternative actuating element, Fig. 22 a representation of a support structure with actuating elements arranged in elongated interfaces, Fig. 23 a side view of a support structure with inserted actuating elements, Fig. 24 a support structure in side view with linear interfaces arranged on it, at which the actuating elements are slidably fixed, Fig. 25 a side view of a design of a piece of furniture with a support structure as a bench, Fig. 26 a side view of a support structure in a design as a bed, Fig. 27 a front view of a support structure in a design as a couch, Fig. 28 a front view of a design with support structures in the form of a highboard, Fig. 29 a front view of a design as a cabinet, Fig. 30 a side view of two coupled support structures with a partition and a central leg, Fig. 31 a side view of two coupled support structures with a cable duct located in the middle, Fig.32 a side view of a support structure with a computer container attached to it, Fig. 33a - 33 dexcentric arrangements of anti-rotation devices, Fig. 34 different embodiments of the interface to secure it against rotation in the recesses of the support structure, Fig. 35a, 35 a positive-locking anti-rotation device to prevent the interface from rotating relative to the support structure, Fig. 36a - 36 an interface with a lock against unintentional release of both the interface and the counterpart, Fig. 37a, 37 an embodiment of a lock for the interface against unintentional release by means of a manually operated engagement element, Fig. 38a - 38 an interface with a level control, Fig. 39a - 39 a further embodiment of a lock for the counterpart at the interface by means of an undercut, Fig. 40a - 40 a design of an interface with a rotary latch engaging in an undercut, Fig.41a - 41 your interface with a locking element actuated by a push button, Fig. 42a - 42 your further embodiment for fixing and securing the counterpart by means of magnetic forces, Fig. 43a, 43 a design of an additional interface held to the support body by magnetic forces.

[0049] The invention will now be explained in more detail by way of example with reference to the accompanying drawings. However, the exemplary embodiments are merely examples and are not intended to limit the inventive concept to a specific arrangement. Before the invention is described in detail, it should be noted that it is not limited to the respective components of the device or the respective process steps, as these components and processes can vary. The terms used here are intended solely to describe particular embodiments and are not used restrictively. Furthermore, where the singular or indefinite articles are used in the description or in the claims, this also refers to the plural of these elements, unless the overall context clearly indicates otherwise.

[0050] The figures show a system for constructing a piece of furniture or an exhibition stand with at least one supporting structure 10 or the supporting structure 10 which according to Fig. 1a, 1b is formed over a wide area or according to the Fig. 12a, 12b a surface, at least partially surrounding it. In the latter case, the supporting structure 10 provides a framework, so to speak, on which further elements, such as a tabletop, can be arranged.

[0051] The supporting structure 10 shows, according to the figures and in particular according to Fig. 1a, 1b several lateral edges 10a, 10b, wherein interfaces 12 are provided on at least two edges 10a, 10b, which are in recesses 13 - or as e.g. in the case of the Fig. 14 in the recesses analogous recordings - are arranged. The recesses 13 are located below in the Fig. 33a bis 43b This will be discussed in more detail later. The interfaces 12 are preferably provided on two opposite edges, but can also be provided on all edges 10a, 10b. The interfaces 12 serve for connection with other system components. In principle, both the shape of the surface and the supporting structure, which in most cases also forms a plate-shaped element 16, as well as its contour, can be designed arbitrarily, as long as it is ensured that corresponding interfaces 12 and / or, if necessary, additional interfaces 20 are provided on the lateral edges 10a, 10b that bound the surface.

[0052] To support the supporting structure on a substrate or to connect other system components to the supporting structure, at least one actuating element 14, 14', 14" is provided, which is preferably detachably attached to the at least one supporting structure 10. Fig. 3a, 3b, 4a, 4b The adjusting elements are legs, in particular table legs for supporting the supporting structure. The at least one adjusting element 14, 14', 14" can be attached to the interfaces 12 of the at least one supporting structure 10 provided at the edges 10a, 10b by means of a form-fit and / or force-fit, and optionally also by means of a material-fit.

[0053] The interfaces 12, arranged in the edges 10a, 10b of the support structure 10 and separated from the support structure, are at least partially integrated into the support structure 10 and are fully integrated into the recesses 13, which in turn are provided in the lateral edges 10a, 10b. The at least one actuating element 14, 14', 14" can be fixed to the respective interface 12 with a counterpart 24 or, if applicable, with an element that is opposite to the interface 12.

[0054] Preferably, the interface 12 is an insert arranged at least partially in the recess 13, as will be discussed further below with regard to the Fig. 33a bis 43b will be discussed further.

[0055] This allows a single lateral interface to fulfill a variety of functions. It's not just about attaching the positioning element 14, 14', 14" to the support structure 10, for example, to support a tabletop via a table leg. It's also about using the interface 12 to create the structural prerequisites for positioning any furniture components, attaching accessories, and cleaning up the surface of the support structure as well as the area surrounding the furniture. The application is not limited to furniture; the system can also be used in other areas such as trade fair construction, particularly when it comes to connecting partition walls, cabinets, tables, or similar elements within the context of exhibition stand construction.

[0056] At least one supporting structure 10 is formed by a plate-shaped element 16, but it can also be constructed as in Fig. 12a, 12b The figures show the mere supporting structure and thus the frame for a plate-shaped element 18. In the figures, the at least one adjusting element 14, 14', 14" can be attached transversely, preferably perpendicular to the surface of the at least one supporting structure 10.

[0057] The adjusting element 14, 14', 14" is preferably a leg for setting up the at least one support structure, but can be used for height adjustment according to Fig. 16a bis 16c also a lifting column 46 or according to Fig. 17a, 17b The leg 48 can be height-adjustable, and in the exemplary embodiment is designed as a telescopic leg. However, other height adjustments are also possible, e.g., by means of threaded adjustments.

[0058] The at least one actuating element 14, 14', 14" can, in one embodiment, also be provided for fastening at least one further system component, which will be discussed in more detail below. In particular, at least one of the elements comprising a seat, a reclining surface, a storage surface, a leaning surface, a headrest 60, an armrest 62, or a backrest 58 can be considered as a system component.

[0059] To reliably attach accessories to the support structure 10, the interfaces 12, which are generally intended for attaching the actuators 14, 14', 14"", can also be used for this purpose. Alternatively or additionally, additional interfaces 20 can also be provided on the edges 10a, 10b of at least one support structure 10 for attaching accessories. Likewise, the actuators 14, 14', 14" already attached to the interfaces 12 can again have connection options for accessory elements, so that one and the same interface 12 can be used multiple times.

[0060] A wide variety of accessories are available, highlighting the system's modularity and versatility. These accessories can include, for example, at least one of the following: a light fixture 26, a cable duct 72, a partition or acoustic wall 70, a monitor mount 40 for a monitor 38, an add-on table, a wastebasket 42, a shelf, a storage unit, a planter, a structural element 30, a control element, a branding element for identifying specific brands, or support or mounting elements for office equipment and IT components. The latter can include, in particular, telephone, paper tray, or CPU holders, which can then be attached to at least one of the interfaces 12 or the additional interfaces 20 on the side of the support structure 10.

[0061] To couple different support structures 10 to one another, coupling elements 22 can preferably also be provided at the interfaces 12 for coupling to interfaces of further support structures. The coupling elements 22 are designed so that they interact with the interface 12; that is, they are usually elements that are opposite to the interface 12 and, as counterparts 24, ensure a force-fit, form-fit, or, if necessary, material-fit connection in a suitable manner.

[0062] Depending on the design of the supporting structure or the attached plate-shaped element 16, the interfaces 12 are fully and / or the additional interfaces 20 are preferably fully or partially integrated into the supporting structure 10 or the plate-shaped element 16 by fastening in the recesses 13 or in receptacles as shown in Fig. 14 integrated. Fig. 1a, 1b show an integrated solution, such as is possible with a composite panel, which is then used as a plate-shaped element 16.

[0063] Fig. 2 Figure 1 shows a non-inventive solution in which the interfaces 12 are arranged on the outside of the plate-shaped element or the supporting structure 10, which is particularly appropriate if the supporting structure is a solid element, e.g., made of solid wood, metal, natural stone or concrete, and / or if it is preferred for design reasons to also show the interfaces 12 externally as functional elements.

[0064] An essential part of the system is therefore the support structure 10 itself, which is designed and suitable for use with other system components to construct a piece of furniture or an exhibition stand. This support structure 10 is planar and preferably surrounds at least partially or completely a surface. It has several lateral edges 10a, 10b, with interfaces 12 provided on at least two edges, preferably two opposite edges, which are designed and suitable for connection with other system components. It is also essential for the support structure 10 that interfaces 12 are provided on its edges—or rather, edge surfaces—for fastening the at least one actuating element 14, 14', 14" in a form-fit and / or force-fit manner, or optionally in a material-fit manner.

[0065] The supporting structure 10 is formed by a plate-shaped element 16.

[0066] The interface 12 of the support structure 10 is designed and suitable for accommodating at least one actuating element 14, 14', 14" preferably as a leg, but optionally also as a connection or coupling element for other system components. Likewise, the interface 12 can also be used to couple a lifting column 46 or a height-adjustable leg 48, so that the actuating element 14, 14', 14" can be used to erect or support the support structure.

[0067] As already explained, additional elements can be attached to the interfaces 12 of the support structure 10 and / or to further additional interfaces 20 provided at the edges 10a, 10b. These elements can preferably be the components already mentioned above, such as the seat, armrest, or other accessories such as lights, cable ducts, etc. A support or retaining element for office equipment and IT equipment can also be attached to the interfaces of the support structure.

[0068] The interfaces 12 can also be used to attach further support structures 10 via coupling elements 22, with the advantage that a plate composite is created.

[0069] According to Fig. 1b The interfaces 12 are attached laterally to the edges 10a, 10b. This results in a support structure 10 with laterally arranged connection points or connection rails. At the interfaces 12, actuating elements 14, 14', 14" are coupled to a corresponding counterpart 24 or a mirror-image element, and thus, depending on the interface, moved into any desired position in space and fixed there. The actuating elements 14, 14', 14" can, for example, be arranged according to Fig. 1a bis 4b Legs can be used to support a tabletop, but they can also be lifting columns 46 or height-adjustable, e.g., telescopic legs 48 for adjusting the height of the support structure 10. Likewise, the adjusting elements 14, 14', 14" can be used to create seating surfaces, reclining surfaces or leaning surfaces such as headrests 60, armrests 62 or backrests 58.

[0070] When using the support structure 10 in conjunction with shelves and cabinets, the interfaces 12 can be used to create storage surfaces such as sideboards, lowboards, highboards, or shelves by arranging the positioning elements 14, 14', 14" accordingly. Likewise, partition walls, acoustic walls, exhibition walls, flip charts, wayfinding systems, and the like can also be constructed using the interfaces.

[0071] The interfaces 12 can be provided at any point or linearly at any position on all edges 10a, 10b or only on a part of the edges 10a, 10b of the support structure 10. This means that the support structure 10 or the plate-shaped element 16 can be used on both sides, since the top and bottom remain untouched. This results in a reversible plate.

[0072] Fig. 3a bis 4b The attachment of positioning elements 14 as legs for the supporting structure 10 is shown. Fig. 3a, 3b The legs 14, with their elements opposite to the interfaces, can be seen; in this position, they are not yet located in the interfaces 12. In contrast, in Fig. 4a, 4b The counterparts 24 or the corresponding elements are inserted into the interfaces 12 and secured there in a suitable manner by frictional and / or form-fitting, and optionally also by material-fitting. It is clearly evident that only a lateral engagement with the edges 10a, 10b of the support body 10 takes place. The adjusting elements 14 are thereby in Fig. 4a They are arranged at an angle, but can also be mounted without being tilted.

[0073] The interfaces 12 and / or any additional interfaces 20 provided at the edges 10a, 10b can preferably also be used for attaching accessories. This is described in Fig. 5a shown, where a connection element 28 is already attached to the additional interface 20. This connection element 28 can then be used according to... Fig. 5b For example, a light fixture 26 can be attached. Here too, the connection is made at the side edge, meaning that the top of the plate-shaped element 16 remains free and can be used for other purposes. Examples of such accessories, besides the light fixture 26, include cable ducts 72, partitions, screen mounts 40 for monitors 38, add-on tables, wastebaskets, shelves, storage space, drawers, speakers, and plant containers.

[0074] Fig. 6 und 7 demonstrates a further advantageous design of the modular system. In Fig. 6 Two independent support structures with associated actuating elements 14 are provided, with a coupling element 22 arranged between the two support structures. Fig. 7 This coupling element is fixed at interfaces 22 of the supporting structures 10, so that a connection between the two supporting structures now results. Fig. 7 The central actuating elements 14 were left unchanged, but they can also be removed so that an actuating element 14' can be attached to the coupling element 22 instead, resulting in a slimmer design with fewer legs. Preferred applications for such units include worktable-island combinations, room dividers, exhibition stands, and the like.

[0075] For the design of a long table, the interfaces 12 can be used according to Fig. 9 They can be used to provide static elements 30 that counteract deflection of the table. In Fig. 9 A cable 32 is stretched to improve the moment diagram of the supporting structure 10. According to Fig. 10 However, another actuating element 14 can also be provided at, for example, a central interface 12.

[0076] In the prior art, the problem regularly arises that the surface of the supporting structure 10 is occupied multiple times. For example, if it is a tabletop, it is often used as a surface for permanently needed items such as lamps, monitors, scanners, or shelves. Can these be... Fig.11 By attaching the supports 10a and 10b to the side edges of the support structure 10, the tabletop is freed up. The same principle applies to the area surrounding the support structure 10, as frequently used items such as the wastebasket can now be positioned along the sides of the support structure 10 and are also more ergonomically accessible. This facilitates room cleaning and increases workplace safety by eliminating tripping hazards.

[0077] Fig. 11 next to the light 26, it shows a holder 34 for a telephone 36, a screen holder 40 for a monitor 38 and the attachment of a wastebasket 42.

[0078] The supporting structure 10 itself can be designed in different ways. Fig. 12a, 12b The figures show the design of the supporting structure as a frame 10, at whose lateral interfaces 12, which are not visible in the figures, the adjusting elements 14 are attached. Fig. 12a The supporting structure on which the plate-shaped element 18 is then arranged is clearly shown. The interfaces are thus located laterally on a substructure with the plate resting upon it. The interfaces 12 are preferably provided on the outside of the supporting structure 10 in the area of ​​the edge of the plate-shaped element 18.

[0079] According to Fig. 13, 14 The supporting structure 10 can also be designed as a plate-shaped element 16 in the form of a layered panel, for example, made of wood-based materials such as multiplex or three-layer panels, or from a material mix of various materials such as metal, plastic, foam, etc. The interfaces 12 can, in principle, be positioned arbitrarily on any edge 10a, 10b of a panel, whereby, in the case of a sandwich panel, a structure according to Fig. 14 offers. Stiffeners 44 are arranged in the plate, in which the interfaces 12 are also integrated, e.g., in receptacles. The whole is enclosed by frame elements 43. The structure thus formed can be covered from the top and bottom with corresponding cover layers. This results in a sandwich composite lightweight structure with interfaces 12 integrated within it.

[0080] However, it is also conceivable to design the supporting structure 10 or the plate-shaped element in a solid material, for example, solid wood, plastic and composite materials, metal materials, or even mineral materials such as concrete. If the interfaces 12 cannot be easily integrated in this case, they can also be designed according to Fig. 2 They can be attached to the edges afterwards. In any case, it is possible to retrofit existing support structures 10 with such interfaces 12.

[0081] Fig. 15a, 15b The possible design options are shown. Control elements 14 can, in principle, be connected to all interfaces 12. In the exemplary embodiment of the Fig. 15a, 15b The front adjustment elements are arranged vertically on the outside (14), while the rear adjustment elements are arranged further inwards. This creates space to easily accommodate items such as floor containers under a table.

[0082] The embodiment according to Fig. 16a bis 16c The top view and both side views show the attachment of a lifting column 46 to the interfaces 12. Identical elements of the lifting column 46 engage in the interfaces 12 and can be fixed there. This provides a means for height adjustment.

[0083] Another possibility for height adjustment is shown in the exemplary embodiment of the Fig. 17a, 17b As shown, height-adjustable legs 48 are attached to the interfaces 12 using counterparts 24 or identical elements, so that, as can be seen from the thinning of the telescopic legs in the lower area in the exemplary embodiment, they can be extended to achieve height adjustment. However, other types of height adjustment can also be used.

[0084] In principle, any structure is conceivable for the actuating elements, whereby Fig. 18a bis 18c One possibility is shown in which the adjusting elements 14" are fixed externally to their counterparts 24 at the interfaces 12, but then retract below the supporting structure 10 before extending downwards towards the ground. It goes without saying that the legs can be manufactured and designed in a wide variety of ways, including any choice of material.

[0085] Fig. 19 bis 24 show different principles for how actuators 14 can be fixed at the interfaces 12. Fig. 19 Figure 1 shows an embodiment in which the actuating element 14, in addition to the counterpart 24 for engaging the interface 12, has an additional holding point 50, which is located under the support structure 10. A tool-free, self-supporting clamping connection is created by rotating the actuating elements 14 outwards.

[0086] A comparable solution shows Fig. 20 , wherein an additional holding point 52 is arranged on another arm of the actuating element 14. A tool-free clamping connection is also achieved there by rotating the actuating element 14 outwards under the support structure 10, which is then self-supporting.

[0087] Fig. 21 Figure 1 shows an embodiment that illustrates that the interfaces 12 can be designed in different ways. In this embodiment, the interfaces 12 are elongated slots, meaning they can be either point-like or linear. In this case, the actuating element 14 is connected to the support structure at two points via the interfaces 12, with the additional retaining element 54 engaging in the support structure in the same way as the counterpart 24. These actuating elements can also be attached without tools.

[0088] Fig. 22 Figure 1 shows an embodiment in which the legs are also attached without tools, preferably by spreading them open. In the initial state (not shown), the distance between the upper ends of the adjusting elements 14 is greater than in Figure 2. Fig. 22 attached state. This results in a clamping connection by spreading along the supporting structure 10.

[0089] In Fig. 24 The interface is formed by a rail 56, along which the actuating element 14 can be slidably fixed. As soon as the actuating element is rotated outwards, a positive and force-fit connection is created.

[0090] The interfaces 12 can be designed in various ways, not fully illustrated in the drawings, by forming interfaces 12 and corresponding elements that are coordinated either on the plate side or on the element side. Everything explained below regarding the design of the actuating element 14 also applies to the design of the accessories and other system components.

[0091] It is conceivable to fix a sleeve as interface 12 to the plate-shaped element 16 by means of screws and then to secure the adjusting element 14 in this sleeve by twisting.

[0092] Similarly, anti-rotation protection can be achieved by ensuring a positive fit, for example by designing the interface 12 to be oval rather than round. Other shapes are also possible.

[0093] Other embodiments may include eccentric rotation locks which, for example, are rotated into a locking position, while in the other position they allow the insertion of the counterparts 24.

[0094] The system elements can be supported as in Fig. 19, 20 This can also be achieved via abutments, so that the interface 12 itself and the counterpart 24 can be manufactured with less effort. To prevent the actuating elements from being moved out unintentionally, additional locking mechanisms are provided that secure the counterpart 24 against slipping out of the interface 12.

[0095] In principle, according to Fig. 21 An actuator 14 can also occupy several interfaces, meaning that these are connected to each other via the actuator 14. Either two independent counterparts 24 can be inserted into two different interfaces 12, or a block can be inserted into a larger receptacle that represents an interface.

[0096] Another securing option is the use of magnets, which can be provided, for example, at the base of the interfaces 12. Alternatively, it is also possible to engage locking elements of the interface 12 with the counterpart 24 in a translational or rotational manner. In principle, it is always possible to connect the actuating element to the interface 12 in a known way, e.g., by screwing it in place. Within the support structure 10 or the plate-shaped element, couplings can also be made through the plate to the opposite side to ensure fixation. Such fixation is also conceivable below the support structure.

[0097] To attach accessories, these can either be attached to interface 12 or to an additional interface 20; however, it is also possible to design the actuating element 14, 14', 14" in such a way that attachment to the actuating element is possible.

[0098] In principle, the system can also be used for other applications such as furniture or exhibition stands. For example, it shows... Fig. 25 the design of a bench with a backrest 58, which also has corresponding interfaces 12 and is attached to the adjusting element 14. Fig. 26 The figure shows the design of a bed, wherein a light 26 is arranged at the interface 12 for the actuating element 14 and a headboard 60 can be attached to the front at the interface 12.

[0099] Fig. 27 The figure shows the design of a sofa, with the backrest 58 arranged on the support structure 10. An armrest 42 can be provided on the side of the adjustment element 14, while on the opposite right side, a light 26 can be attached at the interface 12 next to the adjustment element 14.

[0100] Fig. 28 Figure 1 shows a configuration of a shelf, in which several superimposed support structures 10 are provided on the positioning elements 14, which have interfaces 12 on their outer sides for coupling side walls 64. A light 26 is also coupled to the interface 12 on the right side.

[0101] Fig. 29 Figure 1 shows a cabinet design with adjustable elements 14 attached to the supporting structure 10 on one side and side walls 64 arranged on the outside on the other. A light 26 is also attached to the cabinet 68 at the interface 12 at the top right.

[0102] Fig. 30 Figure 1 shows an embodiment in which actuating elements 14 with their counterparts 24 at the interface 12 are attached to the outside of two support structures 10. The two elements are coupled to each other centrally via a coupling element 22, to which an actuating element 14' is attached. A partition 70 projects upwards from the coupling element 22, separating the two work surfaces formed thereby.

[0103] Fig. 31 Figure 1 shows the arrangement of a cable duct 72 between two support structures 10. Coupling elements 22 are used to attach the cable duct 72 in the middle. Two adjusting elements 14' are also provided centrally on the coupling elements 22.

[0104] Fig. 32 Figure 1 shows the attachment of a container equipped as a CPU holder 74. This container is also attached via the coupling element 22 to an interface 12 of the support structure 10, which in turn is placed on the ground via positioning elements 14.

[0105] The Fig. 33a bis 43b show different designs of the interfaces 12 with regard to their arrangement in the recesses 13 of the supporting structure 10 as well as the arrangement and securing of the counterparts 24 in relation to the interfaces 12.

[0106] Fig. 33a bis 33d Figure 1 shows an eccentric arrangement of a rotation lock 80 relative to the central axis of the cylindrical interface 12. The rotation lock consists of an element such as a screw and thus fixes the interface 12 axially to the support structure 10. Due to the eccentric arrangement, the interface 12 is simultaneously secured against rotation relative to the support structure 10. Fig. 33a It can be seen that the interface 12 is aligned with the cylindrical recess 13 in the edge 10a of the support body. According to Fig. 31a, the interface has an eccentric bore 93, at the end of which a through-hole with a smaller diameter than the bore 93 is provided, through which the anti-rotation device 80 on the support body can secure the interface 12 against rotation. At the Fig. 33c In this embodiment, an additional interface 20 is attached to the interface 12 integrated in the support body 10, the attachment being effected by a rotation lock 92, which is also arranged eccentrically. The rotation lock is designed according to Fig. 33b an eccentrically arranged pin at the additional interface, which according to Fig. 33b The additional interface is positively inserted into the bore 93 during the fastening process. The additional interface 20 is then fixed to the interface by means of the screw-type locking device 94, so that in the assembled state a representation is formed according to Fig. 33d results.

[0107] Fig. 34 Figure 1 shows different embodiments for securing the interface 12 in the recesses 13 of the support structure 10 against rotation. In this case, the interfaces 12 are cylindrical, and the recesses 13 in the support structure 10 are also formed by cylindrical bores. The interfaces 12 have anti-rotation devices 80 at their end facing the recesses 13. In this embodiment, these devices are secured by several elements, so that the interfaces 12 are already secured against rotation relative to the support structure 10 after engagement.

[0108] At the same time, a safeguard 84 against unintentional detachment of the interface 12 from the support structure 10 must also be ensured. This can initially be achieved by mechanically connecting or screwing the interface 12 to the support structure 10, as shown in the Fig. 34 The embodiment on the right is shown. There, the anti-rotation devices 80 are designed, for example, as screws.

[0109] It is also conceivable that the interface 12 can be actively clamped to the supporting structure 10 by means of molded features 86. These molded features 86 can be transverse or longitudinal ribs, as in the two middle embodiments in Fig. 34 As shown, when the interfaces 12 are pressed into the recesses 13, the molded parts 86 come into contact with the wall of the recess 13, thus providing a secure connection against unintentional loosening. Similarly, a material-fit connection, as shown in the left illustration, can be achieved. Fig. 34 This is demonstrated by applying an adhesive to the circumference of the interface 12, so that the interface 12 connects with the recess 13 in a material-coherent manner.

[0110] Fig. 35a, 35b Figure 1 shows a further anti-rotation device 80 to prevent the interface from twisting relative to the support structure 10. In this case, the recess is formed by an elongated hole with rounded ends. The interface 12 has a congruent shape, so that after inserting the interface 12 into the recess 13, a positive-locking connection 82 can be created between the interface 12 and the support structure.

[0111] Fig. 36a, 36b show first in Fig. 36a the attachment of interface 12 in a form-fitting connection in the recess 13. At the in Fig. 36b A corresponding counterpart 24, which in this exemplary embodiment has a connecting element 91, for example for connecting an actuating element 14, can be attached to the interface 12, which is positively engaged in the support structure 10. Screws 83 are provided as a locking mechanism 84 to prevent both the interface from the support structure and the counterpart 24 from the interface 12 from being unintentionally detached. If these screws are only intended to serve as a locking mechanism 94 to prevent unintentional detachment from the interface 12, they terminate in the interface 12. If these screws are intended to provide additional securing of the interface 12 in the recess 13, the screws 83 extend into the support structure 10. Fig. 36c shows the unit consisting of counterpart 24 and connecting means 91 arranged on the supporting structure 10 at the interface 12.

[0112] Fig. 37a und 37b Figure 1 shows a design of a locking device 84 for the interface 12 to prevent unintentional detachment from the support structure 10, which is formed by a manually actuated engagement element 88. This is an eccentric insert that is attached to the interface 12. After the interface 12 is inserted into the recess 13, the manually actuated engagement element 88 is in the position shown. Fig. 37a . If the engagement element 88 is now actuated, it moves into the position according to Fig. 37b , thereby ensuring protection against unintentional loosening or pulling out of the supporting structure 10.

[0113] Both Fig. 35a bis 37b Furthermore, interface 12 has several connection points for attaching the counterpart next to each other, so that the forces occurring during the use of the furniture can be reliably transferred from the support body 10 to the counterpart 14. It is also possible for a counterpart 24, adjusting element 14, or accessory to be connected to multiple interfaces 12.

[0114] Fig. 38a bis 38c Figure 1 shows a configuration that is necessary when the support structure placed on a substrate is overconstrained, as a leveling device 90 is then advantageous. In the exemplary embodiment, the interface 12 is formed by a cylindrical receptacle into which a cylindrical sleeve is inserted as a counterpart 24. This sleeve can be secured there in the aforementioned manner. A bearing element 89 is provided on the actuating element 14, on which a leveling device 90 is mounted in a height-adjustable manner. In the state arranged on the support structure 10, the following representation results. Fig.38c , in which the supporting structure 10 can be aligned by rotating the level control 90. The level control 90 is provided on at least one actuating element 14, in Fig. 39c It is attached to all adjusting elements 14. The leveling mechanism allows the supporting structure 10 to be aligned parallel to the ground or leveled horizontally as needed, for example to compensate for manufacturing tolerances.

[0115] To achieve rotational safety of the counterparts 24, the following can also be done according to Fig. 38d Several counterparts 24 are connected to each other via a connecting element 102. Fig. 38d These counterparts 24 are arranged diametrically opposite each other and are designed for attaching an actuating element 14. The counterparts 24 are thus secured against detachment from the support structure 10. In addition, the connecting element 102 can be used to support the support structure 10.

[0116] In the presentation of the Fig.38a - 38d , but also in the Fig.39a - 39 e as well as the Fig.43a, 43b This also creates a counter-support as an anti-rotation device, since, from a certain rotation of the actuating element 14 relative to the support structure 10, the components rest against the underside of the tabletop and thus prevent further rotation in one direction, or in the other direction if the opposite counterpart is rotated in the other direction (left and right actuating elements 14). Furthermore, it is possible, in principle (not shown in the drawing), to secure a counterpart with, for example, an additional interface 20 for accessories, or a counterpart 24 with an additional interface 20 for accessories and an actuating element against rotation in both directions, by, for example, placing it flat against the underside of the tabletop, i.e., the support structure 10, for support in both directions.

[0117] Fig. 39a - 39e In a further embodiment, the counterpart 24 is secured at the interface 12 by means of an undercut 100. According to Fig. 39a The interface 12 is externally formed by a cylindrical receptacle which is received in the recess of the supporting structure 10. According to Fig. 39c bis 39e This is a sleeve fixed in the support structure by two elements 80 for rotation prevention, which also accommodates a locking element 104. The locking element 104 has an opening into which an undercut 100, similar to a key blade, can engage in one position and lock in the other. If the counterpart 24 is removed from the position according to Fig. 39a into the position mounted on the supporting structure 10 according to Fig. 39b Once transferred, the undercut 100 dips into the opening 12a of the interface 12. Simultaneously, the counterpart 24 has a contact element 24a that is guided under the support body 10. By clamping the contact element 24a to the support structure 10, the actuating element can initially be positioned. In the position thus formed, the undercut 100 is rotated into the locked position, in which it engages with the locking element 104, so that the position is as described. Fig. 39c This results in the following: The supporting structure 10 is secured downwards by clamping between the support element 24a and the engagement of the counterpart 24 in the interface. Secured upwards, it is provided by the abutment and prevented from unintentional loosening by the undercut 100.

[0118] In a design according to Fig. 40a - 40d An undercut 100' is also used, but here it is locked by a rotary latch 105. Initially, the interface 12 is received in a recess 13 of the supporting structure 10. The interface has two openings, one of which contains, according to Fig. 40a the counterpart 24 is fixed. In the exemplary embodiment, this is a bolt that is fixed to the counterpart 24 with a screw. The rotary latch 105 is mounted in the second opening, which, depending on its position, engages in an undercut 100' of a locking bolt 106, so that this bolt, together with the counterpart 24, engages at the interface 12 according to Fig. 40d can be locked. In the position according to Fig. 40c However, no locking mechanism is yet in place, as the rotary bolt 105 does not yet engage in the undercut 100. To lock the mechanism, the cover element of the rotary bolt 105 of the second opening, and thus the rotary bolt 105 itself, can be rotated in its longitudinal direction, thereby bringing the rotary bolt 105 into engagement with the undercut 100'.

[0119] Fig. 41a - 41d They show a solution in which a locking element 108 is actuated by a push button 110 such that it engages and disengages with an undercut 100". According to Fig. 41a The interface 12 is attached to the support structure 10 by means of a locking device 84. It also has a shape congruent with the elongated design of the recess 13. The push button 110, which is spring-loaded and mounted in the right opening of the interface 12, is also visible. The counterpart 24 has, according to Fig. 41a A corresponding connecting element 112 is inserted into the left opening of the interface and has an undercut of 100". In the assembled state according to Fig. 41b The push button 110 is approximately flush with the edge of the support structure 10. If the push button 110 is positioned according to... Fig. 41c Pressed into the supporting structure 10, a space is created into which the locking element 108 can plunge, so that the bore in which the connecting element 112 is located is freed and the counterpart 24 is removed from the bore according to Fig. 41d can be pulled out. When the push button 110 is released, the locking element 108 returns to the bore, but is displaced by the axial movement of the connecting element 112 when a counterpart is next fixed.

[0120] Fig. 42a - 42dFigure 1 shows an alternative embodiment for fixing and securing the counterpart 24 against unintentional detachment from the interface 12 by means of magnetic forces. According to Figure 2. Fig. 42a A cylindrical recess 13 is provided in the support structure 10, into which the interface 12 is inserted. The interface 12 has a bore in which a locking element 108 is movably mounted transversely to the bore. In the assembled state according to Fig. 42bThe connection element 112, which has an undercut 100", is located in the interface 12 and allows the counterpart 24 to be fixed to the interface 12. As in the preceding embodiments, the counterpart 24 has a connection means, for example, for an actuating element 14. In this assembled position, a magnet 96 can be brought towards the top of the support structure 10, so that the locking element 108 can be moved out of the undercut 100", thus releasing the bore in which the connection element 112 is located and allowing the counterpart 24 to be positioned as described above. Fig. 42d can be removed from the supporting structure 10.

[0121] Fig. 43a, 43bFigure 1 shows an embodiment in which, in this case, an additional interface 20 is held to the support body 10 by magnetic forces. A comparable arrangement is also possible for securing the counterpart 24 to an interface 12 or for defining an interface 12 on the support body 10. In this case, the following are located in the Fig. 43b Magnets 96' arranged in the bores 114, preferably pressed in, so that when the additional interface 20 is inserted into the bores it is held there by force and can only be released by overcoming the magnetic forces.

[0122] In a manner not shown in the drawing, it is also possible, for example, to attach an actuating element 14, secured to the support structure 10 by magnetic forces, using magnetic forces while simultaneously making it easily detachable. If a magnetic locking mechanism is created at a specific angular position of the magnets between counterpart 24 and interface 12, the magnetic forces can be easily released by rotating counterpart 24 or actuating element 14, allowing the actuating element 14 to be detached from the support structure 10. Reference symbol list

[0123] 10 supporting structure 66 back panel 10a, 10b edge 68 Wardrobe 12 interface 70 partition 12a opening 72 cable duct 13 recess 74 CPU holder 14, 14', 14" Actuator 80 Rotation lock 16, 18 Plate-shaped element 82 Positive locking connection 20 Additional interface 83 screw 22 Coupling element 84 Safety device to prevent loosening 24 counterpart 85 glue 24a Plant element 86 Shapes 26 light 88 Intervention element 28 Connection element 89 bearing element 30 static element 90 Level control 32 Rope 91 Connection device 34 holder 92 Rotation lock 36 phone 93 Drilling 38 monitor 94 Safety device to prevent loosening 40 Holder for 38 96, 96' magnet 42 Wastebasket 98 Safety element 43 frame elements 100,100',100" Undercut 44 stiffening 102 Connecting element 46 Lifting column 104 locking element 48 height-adjustable leg 105 rotary latch 50, 52, 54 Stop points 106 Locking bolt 56 rail 108 locking element 58 backrest 110 Pushbutton 60 headboard 112 Connection element 62 armrest 114 Drilling 64 side wall

Claims

1. System for constructing a piece of furniture or an exhibition stand comprising - a supporting structure (10) formed by a plate-shaped element (16) comprising a contour and comprising a surface or at least partially surrounding a surface, with several side edges (10a, 10b), wherein interfaces (12) are provided on at least two preferably opposite edges (10a, 10b), which are configured for connection to further system components and which are provided only laterally in the side edges (10a, 10b), - a plurality of positioning elements (14, 14', 14") which are releasably secured to the interfaces (12) of the at least one support structure (10) arranged at the edges (10a, 10b) in a positive-locking and / or force-locking manner and which support the support structure (10) downwards towards the floor, - wherein the interfaces (12) arranged in the edges (10a, 10b) of the support structure (10) and separated from the support structure are at least partially integrated into the support structure (10) and arranged in recesses (13) provided in the side edges (10a, 10b), and wherein the positioning elements (14, 14', 14") can be fixed at the interfaces (12) with a mating part (24) for the respective interface (12), - wherein the supporting structure formed by the plate-shaped element (16) is configured only laterally for connecting the positioning elements (14, 14', 14") at the interfaces (12), while the supporting structure itself is untouched on other surfaces thereof, is usable on both sides and is reversible, - wherein the shape of the surface and its contour are configured such that the interfaces (12) are provided in the recesses (13) at the side edges (10a, 10b) delimiting the surface, and characterised in that the interfaces (12) in the support structure are completely integrated into the recesses (13), that the recesses (13) are cylindrical or elongated and / or the interface (12) has a shape that is congruent with the recess (13) and is configured to create a positive locking connection between the interface (12) and the supporting structure after the interface (12) has been inserted into the recess (13) , and that the mating part (24) can be secured against rotation relative to the interface (12) and comprises a securing device (94) to prevent unintentional release of the mating part from the interface (12), which is formed by at least one of the following features: - a positive-locking and force-locking connection of the mating part (24) to the interface (12), - a force-locking connection of the mating part (24) to the interface (12) by means of magnetic forces, - engagement of a securing element in an undercut, - connection of several mating parts (24) to each other.

2. System according to claim 1, characterised in that the interface (12) is an insert arranged at least partially in the recess (13).

3. System according to claim 1 or 2, characterised by at least one of the features that - the at least one positioning element (14, 14', 14") is a leg for setting up, - the at least one positioning element (14, 14', 14") is provided for height adjustment of the at least one support structure (10) or is a lifting column (46), - at least one positioning element comprises a level control engaging between the positioning element (14) and the supporting structure (10) for aligning the supporting structure (10).

4. System according to anyone of the preceding claims, characterised in that the at least one positioning element (14) is configured to fasten at least one of the following additional system components: a seat surface, a reclining surface, a storage surface, a leaning surface, a headrest (60), an armrest (62), a backrest (58).

5. System according to anyone of the preceding claims, characterised in that accessory elements are mounted to the interfaces (12) for mounting the positioning elements (14, 14', 14") and / or at additional interfaces (20) provided at the edges (10a, 10b) of the at least one supporting structure (10).

6. System according to claim 5, characterised in that the accessory elements are mounted to the positioning elements (14, 14', 14") attached to the interfaces (12), wherein preferably several interfaces are combined in one insert and are designed differently as required.

7. System according to anyone of the preceding claims, characterised in that coupling elements (22) for coupling to interfaces of further support structures (10) are attachable to the interfaces (12), wherein preferably a positioning element (14') is provided at the same time on the coupling element (22), and / or the at least one positioning element (14, 14', 14") is fixable to an element configured as a mating part (24) to the interface (12) in an opposite configuration.

8. System according to anyone of the preceding claims, characterised in that the interface (12) comprises an anti-rotation device (80) to prevent the interface (12) from rotating relative to the support structure (10), which is formed by at least one of the following features: - eccentric arrangement of an element for the anti-rotation device (80) with respect to the recess (13), - arrangement of several anti-rotation elements (80), - creation of a positive-locking, non-rotatable connection (82) between the interface (12) and the support structure (10),9. System according to anyone of the preceding claims, characterised in that the interface (12) comprises a securing device (84) to prevent unintentional detachment from the supporting structure (10), which is formed by at least one of the following features: - mechanical connection or screwing of the interface (12) to the support structure (10), - material bonding of the interface (12) to the support structure (10), - passive clamping of the interface (12) to the supporting structure (10) using integrally formed parts (86), - active locking of the interface (12) with the supporting structure (10) using manually actuatable engagement elements (88).

10. System according to anyone of the preceding claims, characterised in that the anti-rotation device (92) against rotation of the mating part (24) relative to the interface (12) is formed by at least one of the following features: - eccentric arrangement of a positive-locking element for the anti-rotation device (92) relative to the interface (12), - arrangement of several elements for the anti-rotation device (92), - use of an abutment.