System with individual panels for assembling a piece of furniture

Abstract

System comprising: at least two plates (1) of a plate thickness, each plate (1) having a top (2) and a bottom, and connecting sides (5) of the plates (1) arranged between the top and bottom, each having one or two 45° chamfers (6) arranged along its longitudinal axis, with a central web (7) being arranged between the 45° chamfers in the case of two 45° chamfers.

Description

AREA OF INVENTION

[0001] The present invention relates to a system or kit for joining plates to form two- or three-dimensional structures, for example a cabinet. BACKGROUND OF THE INVENTION

[0002] Many solutions for joining panels to form two- or three-dimensional structures are known in the art. Joining panels, especially wood panels, is a common task in furniture making, which is why this is where the most important references for panel and connection kits are found. Generally, it is desirable to join panels in such a way that the resulting structure can withstand forces and torques according to the expected load cases. It is also usually advantageous if the connection can be disassembled non-destructively if necessary. Such load-bearing and detachable panel connections can be achieved, for example, using screws, bolts, clamps, wedges, or tongue and groove joints.

[0003] All the examples listed have in common that the plates to be joined undergo mechanical processing, either in a preparatory manufacturing step or during the joining process, for example, to create specific recesses or edge profiles, in particular holes and chamfers. This processing of the plates is irreversible and, according to the state of the art, is specifically adapted to the desired geometry of the plate joint. WO 2023 / 099218 A1, EP 3 816 412 A1, EP 2 527 662 A1, CN 220268115 U, CN 220037163 U and CN 218992050 U, for example, represent joining solutions that enable butt jointing of two plates, that is, joining plates at an angle of 180° between their front faces.The respective geometric design of the plate and joint, however, precludes joining two plates in any other arrangement, particularly at a 90° angle between the front faces of the plates. The exemplary joint solutions also do not permit the addition of another plate along the joint axis without requiring modifications, especially machining. US 11,821,447 B2, US 11,466,717 B2, EP 4 302 648 A1, EP 3 768 981 B1, EP 2 682 614 A1, and CN 218992053 U propose solutions for joining two plates at right angles, i.e., at a 90° angle between the front faces, where the geometric design of the plate and joint does not permit butt joints, i.e., joints at a 180° angle between the front faces of the plates.The connection solutions listed as examples are also not suitable for attaching another plate along the connection axis without requiring adjustments, in particular mechanical processing. SUMMARY OF THE INVENTION

[0004] A disadvantage of the technical principles described here is that the design of the plates, particularly the recesses and chamfers, as well as the design of the joint, are only applicable to specific geometric arrangements of the plates. They do not allow, without mechanical modification, any number of plates, especially two, three, or four plates, to be joined along a connecting axis at any angle, particularly at angles of 90° or 180° between the front faces of the plates, to form structures.

[0005] This is where the present invention comes in, which aims to overcome the disadvantages of plate connections according to the prior art and to provide a kit and / or a system through an improved design of plate and connection which allows greater flexibility in the assembly of structures, in particular with regard to the number and arrangement of the plates relative to each other.

[0006] This problem is solved by the features of the independent patent claim.

[0007] As a first aspect of the invention, a system is provided comprising: at least two plates with a plate thickness, each plate having a front and a back side, and connecting sides of the plates arranged between the front and back sides, each having one or two 45° chamfers arranged along its longitudinal axis, with a central web being provided which, in the case of two 45° chamfers, is arranged between the 45° chamfers.

[0008] The invention relates to a kit for two- or three-dimensional structures, comprising at least two plates and a detachable connection, wherein each plate has at least one connecting side, and wherein the two longer edges of each connecting side are each machined with a 45° chamfer such that the width of the resulting central web is at most half the plate thickness, and wherein, when the plates are joined, the 45° chamfers of the meeting connecting sides serve as a bearing surface for clamping the plates against each other.

[0009] As specified, the provided kit allows for the assembly of any two- or three-dimensional structure, particularly play and climbing structures or furniture, especially storage solutions. The kit can be disassembled and reassembled in different configurations as often as desired, enabling the creation of new structures without requiring any modifications to the panels or the connections. Unlike conventional connections, it is irrelevant whether two, three, or four panels are joined along a single axis, as the 45° chamfers ensure a positive fit for any of these arrangements. The 45° chamfers also allow for the easy creation of a 90° angle between two panels, enabling the construction of a structure such as a cabinet.Furthermore, the central web prevents the plates from shifting relative to each other and provides the structure with mechanical stability. The 45° chamfers are also in accordance with the invention in that they serve as a bearing surface when the plates are joined, in order to absorb clamping forces and, in particular, torques between the plates to be joined. The plates are detachably connected to each other by frictional clamping. Compared to prior art connection solutions, this allows for the creation of more stable connections that can withstand higher mechanical loads.

[0010] Exemplary embodiments are described in the dependent claims.

[0011] According to an exemplary embodiment of the invention, a system is provided wherein the width of the central web is at most half the thickness of the panel. The central web should have a minimal width, but should, when panels are assembled, it should provide sufficient space as a placeholder, e.g., for strips.

[0012] According to a further embodiment of the present invention, a system is provided wherein, when joining two plates at an angle of 90°, the 45° chamfers of the respective joining sides serve as a common bearing surface.

[0013] According to a further embodiment of the present invention, a system is provided wherein the connecting sides have at least one recess, wherein the system comprises a connector for insertion into the recess, whereby two plates can be detachably connected to each other.

[0014] According to an exemplary embodiment of the invention, a kit or system is provided, wherein the detachable connection comprises at least one connector, and wherein each connecting side has at least one recess for receiving the connector, and wherein two, three or four plates are clamped together by means of the connector in such a way that an angle of 90° or 180° is formed between the front sides of the plates.

[0015] In a further embodiment of the invention, a system is provided wherein the connector comprises an I-shape for connecting two plates in a plane, an L-shape for connecting two plates at a right angle, a T-shape for connecting three plates, wherein adjacent plates form a right angle, and / or a cross-shape for connecting four plates, wherein adjacent plates form a right angle.

[0016] Such a connection design simplifies the handling of the kit, even for less experienced users, by providing defined connectors and recesses. This eliminates the need for the user to select and procure connectors or to mechanically modify the panels. An advantageous connector design features at least one arm and / or a knob, and panels are joined by inserting and clamping one arm into the recess of each panel to be joined. Because the panel already has a recess for the connector, no mechanical modification is required when joining the panels. Providing a connector whose features are tailored to the specific design of the panel, including the recess, reduces the potential for errors during assembly.According to the invention, each plate is connected to another plate along a connecting side, since at least one recess is provided on the connecting side for receiving and clamping the connector. Each plate has at least one connecting side, which in turn has at least one recess. Depending on the embodiment of the plates and the load on the structure, sufficient stability can already be ensured by this; however, connecting using two, three, or more connectors per connecting side can be advantageous, as it significantly improves the stability of the structure by distributing the forces and moments to be transmitted across several connectors.

[0017] If two plates are joined at an angle of 180° between their front faces, the possible bearing surface between the two joining surfaces is limited to a maximum of the width of the central web. To ensure sufficient transmission of forces and torques, a connecting strip can preferably be positioned between the joining surfaces.

[0018] According to a further embodiment of the present invention, a system is provided, wherein the system comprises a connecting strip, the connecting strip having a profile complementary to the connecting side on two opposite sides, and wherein a connecting strip is arranged between two plates to form a detachable connection between the two plates with an angle of 180° between the plates. The system can include connecting strips whose special feature is a profile complementary to a connecting side on opposite sides. A connecting side can therefore create a positive-locking connection between plates, such that the two plates form an angle of 180°. To increase mechanical stability, a connecting strip has recesses that can receive connectors, so that the arms of the connector can be inserted into each plate.

[0019] According to a further embodiment of the present invention, a system is provided wherein the system comprises an eccentric fastening which is inserted on the back of a plate to be joined and is clamped forcefully to the plate and the connector.

[0020] Another exemplary embodiment of the invention therefore relates to a kit or system, wherein, when joining two plates at an angle of 180° between the front faces of the plates, the connection comprises a connecting strip which is mounted between the plates along the connection axis, wherein the connecting strip has a recess for the insertion of the connector, and wherein the profile of the connecting strip has profiles on both sides which positively engage the two connection faces with 45° chamfers. The connecting strip increases the stability of a connection between two plates by forming a positive-locking transition and providing bearing surfaces for absorbing forces and torques.

[0021] In a further embodiment of the invention, a system is provided wherein the system comprises an eccentric fastening on the back of the plate, which is clamped to the plate and the connector in a force-fit manner. An eccentric fastening can, for example, be designed as an eccentric screw.

[0022] Finally, another exemplary embodiment of the invention provides a kit or system in which the connection comprises an eccentric fastener that is inserted into a recess on the back of a plate to be joined and clamped there to the plate and the connector in a force-fit manner. Tightening the eccentric fastener creates a clamping force between the eccentric fastener, the connector, and the plate into which the eccentric fastener and the connector are inserted, whereby the force is transmitted via the connector between the plates to be joined, and wherein the 45° chamfers of the connecting side serve as a bearing surface for force transmission. The eccentric fastener can, in particular, be implemented by an eccentric screw which, when tightened, engages and clamps the arm of the connector.The advantage of this design lies in the fact that panels can be joined using only a few, defined components – connectors, eccentric screws, and, if necessary, a connecting strip – thus significantly reducing the potential for errors in the selection of connecting components and during assembly. The eccentric screw allows for the clamping of connectors and panels with minimal time and tool requirements, creating a detachable, force-fit connection, making both assembly and disassembly easy even for less experienced users.

[0023] According to an exemplary embodiment of the invention, a system is provided wherein, when joining two plates, the 45° chamfers of the respective joining sides serve as a common bearing surface, resulting in an angle of 90° between the plates.

[0024] A connector can be used to mechanically stabilize the joining of two plates. The connector has two arms, each of which is inserted into a plate and can be clamped in place using an eccentric fastener.

[0025] According to an exemplary embodiment of the invention, a system is provided, wherein the system comprises a connecting strip, the connecting strip having a complementary profile to the connecting side on two opposite sides, wherein a connecting strip is arranged between two plates to form a detachable connection of two plates with an angle of 180° between the front sides of the plates.

[0026] A connecting strip allows for the construction of a particularly stable system, enabling systems with connecting strips to be used as heavy-duty cabinets.

[0027] In a further embodiment according to the invention, a system is provided wherein the connecting strip has a recess for the passage of a connector.

[0028] In a further embodiment of the invention, a system is provided wherein the system comprises an eccentric fastening which is inserted on the back of a plate to be joined and is clamped forcefully to the plate and the connector.

[0029] An eccentric fastening, which can be designed in particular as an eccentric screw, can create a firm mechanical connection between two plates.

[0030] According to an exemplary embodiment of the invention, a system is provided wherein the I-shaped connector has two arms between which there is an angle of 180°, wherein the L-shaped connector has two arms between which there is an angle of 90°, wherein the T-shaped connector has three arms, wherein there is a right angle between adjacent arms, and wherein the cross-shaped connector has four arms, wherein there is a right angle between adjacent arms.

[0031] According to an exemplary embodiment of the invention, a system is provided wherein the connector has a stabilizing knob which rests on the 45° chamfers of contacting connection sides and / or wherein the connector has a head at the end of a boom to optimally engage an eccentric screw, and / or wherein a hinge and / or a roller and / or an end strip is clamped in the recess of a plate by means of an eccentric fastening instead of a connector, and / or wherein two or more plates are connected by means of a connecting strip along their connection sides at any angles specified by the embodiment of the connecting strip, and / or wherein two plates are not connected flush along their connection sides, but are offset against each other.

[0032] According to an exemplary embodiment of the invention, a system is provided, wherein the system comprises a connecting strip, the connecting strip having a complementary profile to the connecting side on two opposite sides, wherein a connecting strip is arranged between two plates to form a detachable connection of two plates with an angle of 180° between the front sides of the plates.

[0033] According to an exemplary embodiment of the invention, a system is provided wherein the connecting strip has a recess for the passage of a connector.

[0034] According to an exemplary embodiment of the invention, a system is provided wherein the system comprises an eccentric fastening which is inserted on the back of a plate to be joined and is clamped forcefully to the plate and the connector.

[0035] One aspect of the invention is to provide a system of components for constructing a three-dimensional structure, for example a cabinet, such that individual panels can be mounted at either 90° or 180° angles to each other. Furthermore, the system according to the invention can be disassembled and reassembled very quickly.

[0036] The individual features can of course also be combined with each other, which can sometimes result in advantageous effects that go beyond the sum of the individual effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Further details and advantages of the invention will become clear with reference to the exemplary embodiments shown in the drawings. These show: Fig. 1 a plate, wherein Fig. 1a represents the back of the plate, Fig. 1b shows the plate in side view, Fig. 1c shows the plate in perspective and Fig. 1d for better visibility, detail A of the Fig. 1c in enlarged view shows, Fig. 2 an L-connector, wherein Fig. 2a shows the L-connector in a unique perspective, Fig. 2c shows the partially assembled connection of two plates using three L-connectors, and Fig. 2b for better visibility, detail B of the Fig. 2c is shown in an enlarged view. Fig. 3 an I-connector, wherein Fig. 3a presents the I-connector in a unique perspective, Fig. 3c shows the partially assembled connection of two plates using three I-connectors and a connecting strip, and Fig. 3b for better visibility, detail C of the Fig. Figure 3c shows an enlarged view. Fig. 4 a T-connector, wherein Fig. 4a shows the T-connector in a unique perspective, Fig. 4c shows the partially assembled connection of three plates using three T-connectors, and Fig. 4b for better visibility, detail D of the Fig. 4c shows an enlarged view. Fig. 5 an X-connector, wherein Fig. 5a shows the X-connector in a unique perspective, Fig. 5c shows the partially assembled connection of four plates using three X-connectors, and Fig. 5b for better visibility, detail E of the Fig. 5c is shown in an enlarged view. Fig. 6 a connecting strip, wherein Fig. 6a shows the connecting strip in a unique perspective view, Fig. 6b shows the connecting bar in the side view and Fig. 6c shows the connecting strip in the front view. Fig. 7 an eccentric mounting, wherein Fig. Figure 7a shows the front of a plate with three mounted L-connectors in perspective view, Fig. 7b shows the plate with three mounted L-connectors in side view, Fig. 7c the cut FF of the Fig. 7b shows and Fig. 7c for better visibility of the eccentric screw, detail G of the Fig. Figure 7c shows an enlarged view. DETAILED DESCRIPTION OF EXAMPLE EXECUTIONS

[0038] In Fig. Figure 1 shows a panel 1 having a front 2, a back 3, and four sides 4, the sides 4 being referred to as butt surfaces. The panels 1 of the kit are preferably rigid, rectangular panels with edge lengths ranging, for example, from 10 cm to 50 cm. Any sufficiently robust material is suitable for the panels 1, preferably wood-based panel materials or composite materials. To ensure the stability required for the load cases expected, for example, in furniture construction, the panels 1 of the provided kit or system have thicknesses ranging from 10 mm to 25 mm. The embodiment of the kit shown here comprises a square panel 1 with an edge length of 34.5 cm, made of birch plywood with a thickness of 15 mm to achieve optimal bending strength.In this embodiment, all four butt surfaces 4 are suitable or intended for connection with other plates and can therefore be referred to as so-called connection surfaces 5. This means they have features that enable the connection of the plate 1 to another plate 1 according to the invention. These features include a 45° chamfer 6 on each of the two longer edges of each connection surface 5, such that a central web 7 remains in the middle of the connection surface 5, the width of which is at most half the plate thickness. The width of each 45° chamfer 6 is therefore at least one-quarter of the plate thickness. This requirement is essential because the 45° chamfer 6 serves as a bearing surface when the plate 1 is connected, and its dimensions must be sufficient to absorb clamping forces and torques between the plates to be joined.It is irrelevant whether two, three, or four plates are connected along a connecting axis 15 and whether angles of 90° or 180° are formed between the plates 1. In the embodiment presented here, the width of the central web 7 is exactly one-third of the plate thickness, that is, 5 mm for a plate thickness of 15 mm.

[0039] According to the invention, the plate 1 has at least one recess 8 on each side, or connecting side 5, for receiving a connector. The recess 8 is preferably a bore positioned centrally between the front 2 and the rear 3 of the plate 1 and entering the plate 1 at a right angle to the connecting side 5. The diameter and depth of the bore depend on the design of the connector, in particular its extension 10, and how the clamping of the connector to the plate 1 is achieved. In the illustrated embodiment, the recess 8 is in the form of a bore with a diameter of 8 mm and a depth of 29 mm. Three recesses 8 are positioned at equal intervals along the central web 7 of each connecting side 5 to ensure uniform absorption and distribution of forces and torques on the plate 1.This allows the stable clamping of plate 1 with at least one other plate 1 using three connectors per connection side 5.

[0040] The illustrated plate 1 also includes recesses 9 for receiving an eccentric screw. The recesses 9 are located on the rear side 3 of the plate 1 so as not to impair the appearance of the front side 2. In the illustrated example, the recess 9 is designed as a bore with a diameter of 15 mm and a depth of 12.5 mm. For each recess 8 for receiving a connector, a corresponding recess 9 for receiving an eccentric screw is provided to ensure that the inserted connector is clamped to the plate 1. This means that, just like the recesses 8 for receiving a connector, the recesses 9 for receiving an eccentric screw are also evenly distributed along the length of a connection side 5.

[0041] Fig. Figure 1a shows a reverse side 3 of a plate 1 with openings 9 for receiving eccentric screws.

[0042] Fig. Figure 1b shows a connecting face 5 of the plate 1 with a 45° chamfer 6 and a central web 7 adjacent to the 45° chamfer 6. A recess 8 is also shown into which a connector arm can be inserted. In this way, a connector can be used to create a fixed mechanical connection between two plates 1.

[0043] Fig. Figure 1c shows the reverse side in a perspective view.

[0044] Fig. Figure 1d shows a corner of plate 1 with the recess 9 for an eccentric screw and a recess 8 for the arm of a connector. The central web 7 with its flat surface and a 45° chamfer 6 are also shown.

[0045] Fig. Figure 2a shows a connector 12a for arranging two plates 1 at a 90° angle, wherein the connector 12a has two arms 10 for insertion into recesses in the plates 1. Furthermore, the connector 12a has a head 19 at the end of each arm 10, into which the eccentric screw inserted into recess 9 of a plate 1 can engage, thereby clamping the connector 12a securely.

[0046] Fig. Figure 2b shows a cantilever of a connector 12a which can be inserted into a recess 8 to create a detachable connection between two plates 1.

[0047] Fig. Figure 2c shows the assembly of two plates 1, where the detachable connection is made with three connectors 12a.

[0048] Fig. 2a, Fig. 3a, Fig. 4a and Fig. Figure 5a shows four different embodiments of a connector 12a, 12b, 12c, and 12d. In a further embodiment according to the invention, a system is provided wherein the I-shaped connector has two arms with an angle of 180° between them, the L-shaped connector has two arms with an angle of 90° between them, the T-shaped connector has three arms with a right angle between adjacent arms, and the cross-shaped connector has four arms with a right angle between adjacent arms. The illustrated embodiments are based on the concept that each connector has two, three, or four arms 10, and that, to connect plates 1, each arm 10 of a connector is inserted into a recess 8 for receiving a connector of a plate 1 and clamped there.The cantilevers 10 can be arranged in various geometric configurations; in particular, angles α of 90° or 180° can be formed between any two cantilevers 10. This embodiment is particularly suitable for connecting two, three, or four plates 1 along a connecting axis 15 such that angles β of 90° or 180° are formed between the front faces 2 of the plates 1. A selected embodiment in the form of an L-connector 12a enables, as shown in . Fig. Figure 2 shows that by aligning two cantilevers 10 at an angle α of 90°, two plates 1 can be connected in an L-arrangement, that is, at an angle β of 90° between the front faces 2 of the plates 1. Another embodiment in the form of an I-connector 12b allows, as shown in Fig. Figure 3 shows that by aligning two cantilevers 10 at an angle α of 180°, two plates 1 can be connected in an I-arrangement, that is, at an angle β of 180° between the front faces 2 of the plates 1. A further embodiment in the form of a T-connector 12c allows, as shown in Fig. As shown in Figure 4, the T-shaped alignment of three arms 10 at an angle α of 90° between each pair of arms allows three plates 1 to be connected in a T-arrangement, such that angles β of 90° are formed between the front faces 2 of the first and second plates 1, and between the front faces 2 of the second and third plates 1, and an angle of 180° is formed between the front faces 2 of the first and third plates 1. A further embodiment in the form of an X-connector 12d enables, as shown in Fig. 5 shown, by the cross-shaped alignment of four cantilevers 10 the connection of four plates 1 in an X arrangement, that is, at an angle β of 90° between the front sides 2 of each pair of adjacent plates 1.

[0049] When four plates 1 are clamped together in a cross shape, a positive fit is inevitably created by the abutting of the 45° chamfers 6 of all four connecting sides 5 along a connecting axis 15. All forces and torques are absorbed and transmitted via the 45° chamfers 6, which serve as bearing surfaces. When connecting two plates 1 using I-connectors 12b, i.e., at an angle β of 180°, the Fig. The connecting strip 17, shown in Figure 6 and further explained below, is for force and torque transmission. To ensure optimal absorption and transmission of forces and torques even when connecting two plates 1 in an L-orientation, the L-connector 12a, as shown in Figure 6, features a connecting strip 17 for force and torque transmission. Fig. 2 shown, via a knob 11 with a flat underside 13, which serves as a bearing surface for each 45° chamfer 6 of the plates 1 to be joined. For absorbing and transmitting forces and torques when joining three plates 1 in a T-orientation, the T-connector 12c also has a knob 11, which, however, as shown in Fig. Figure 3 shows a 45° bevel 14 on both sides to serve as a bearing surface for a 45° chamfer 6 of each of the two plates 1 to be joined at the abutment. In the embodiments shown here, the connectors 12a, 12b, 12c, 12d each have a head 19 at the end of their extensions 10, which is shaped such that it allows optimal engagement of an eccentric screw 16.

[0050] Fig. Figure 3a shows a connector 12b suitable for joining two plates 1 that form an angle of 180° between their front faces. In this case, a connecting strip 17 is arranged between the two plates 1, which has a complementary shape to the plate 1, resulting in a positive-locking connection.

[0051] Fig. Figure 3b shows the arrangement of the connecting strip 17 between two plates 1, wherein the connecting strip 17 can accommodate a connector 12b so that it can create a fixed connection between the two plates 1.

[0052] Fig. Figure 3c shows the arrangement with the connecting strip 17, which rests against the connecting sides 5 of the plates 1 and accommodates connectors 12b. In this case, a flat plane is formed with two plates 1, resulting in an angle β of 180° between the two plates 1.

[0053] Fig. Figure 4a shows a connector 12c that can create a stable, detachable connection between three plates.

[0054] Fig. Figure 4b shows connector 12c, whose arms form a T-shape.

[0055] Fig. Figure 4c shows an arrangement of three plates 1 which are detachably connected by T-shaped connectors 12c.

[0056] Fig. Figure 5a shows a cross-shaped connector 12d with which a mechanically stable connection of four plates 1 can be created. The connector 12d has four arms 10, between which there is a right angle. In addition, a head 19 is provided at the end of each arm 10, which, together with an eccentric connection, results in a tensioning of the connector 12d with the respective plate 1.

[0057] Fig. Figure 5b shows the arrangement of four plates 1 with the connector 12d.

[0058] Fig. Figure 5c shows the four plates 1 and the connector 12d in a partial exploded view.

[0059] Fig. Figure 6a shows the connecting strip 17, which has a profile complementary to a connecting side 5 of a plate 1 along its longitudinal axis. Preferably, the connecting strip 17 has a complementary profile on opposite sides, so that two plates 1 can be arranged at an angle of 180°, with each connecting strip 17 forming a positive-locking connection.

[0060] Fig. Figure 6b shows the connecting bar 17 from the side.

[0061] Fig. Figure 6c shows the connecting strip 17 from the front, where the complementary profile corresponding to the central web and the 45° chamfers on both sides of one connecting side is recognizable.

[0062] Fig. 2c, Fig. 3c, Fig. 4c and Fig. Figure 5c shows examples of partially assembled structures, each consisting of two, three, or four plates 1 and the corresponding connections along a connecting axis 15. Regardless of whether the plates 1 are connected at an angle β of 90° or 180° between their front faces 2, the 45° chamfers 6 serve, according to the invention, as bearing surfaces for absorbing forces and torques between the connected plates 1. If two plates 1 are connected to each other with an L-connector 12a at an angle β of 90° between their front faces 2, a bearing surface for absorbing forces and torques is created between each 45° chamfer 6 of the plates 1 to be connected. For improved stability of the connection, the underside 13 of the knob 11 of the L-connector 12a additionally provides a bearing surface for absorbing forces and torques against the 45° chamfers 6 of the plates 1 to be connected.When three plates 1 are joined with a T-connector 12c, forces and torques are transmitted via the bearing surfaces between the adjacent 45° chamfers 6 of the joined plates 1. For improved connection stability, the two bevels 14 on the head 19 of the T-connector 12c also provide a bearing surface for transmitting forces and torques to the 45° chamfers 6 of the plates 1 being joined. When four plates 1 are connected crosswise using an X-connector 12d, the bearing surfaces required for absorbing and transmitting forces and torques are created between the 45° chamfers 6 of the joined plates 1, without the X-connector 12d needing or being able to have a knob to improve stability.When two plates 1 are joined with an I-connector 12b at an angle β of 180° between the front faces 2 of the plates 1, a connecting strip 17 is mounted between the connecting sides 5 of the plates 1. The connecting strip 17 serves to create a positive fit to the 45° chamfers 6 of the plates 1 to be joined, in order to ensure the transmission of forces and torques. When joining and clamping two plates 1 at an angle β of 180° between the front faces 2 of the plates 1 with the I-connector 12b, the connecting strip 17 is installed as shown in [reference]. Fig. 3c shown, clamped between plates 1.

[0063] Fig. Figure 6 shows an exemplary embodiment of the connecting strip 17. The connecting strip 17 has trapezoidally recessed ribs 18 on both sides, the geometry of which corresponds to the counterpart of a connecting side 5 with a 45° chamfer 6 on both sides and a central web 7. When two plates 1 are joined at an angle β of 180° between their front faces 2, each of the two opposing profiles of ribs 18 receives the connecting side 5 of a plate 1 to be joined. The connecting strip 17 serves to transmit forces and torques between the joined plates 1, with the bearing surfaces formed between the 45° chamfers 6 of a connecting side 5 and the ribs 18 serving to absorb the forces and torques. To allow the I-connector 12b to be inserted into and clamped in both plates 1 to be joined, the connecting strip 17 has at least one recess 20 for the passage of a connector.The length of the connecting strip 17 preferably corresponds to the longest edge length of the connecting side 5, so that when two plates 1 are joined with an intermediate connecting strip 17, a uniform edge finish is created.

[0064] The embodiment shown here describes the connection of square plates 1 with an edge length of 34.5 cm, where the length of the connecting strip 17 is also 34.5 cm. The connecting strip 17 has three recesses 20 for the insertion of a connector at regular intervals. Each recess 20 for the insertion of a connector has a diameter of 7.2 mm and a notch 21 for easier positioning of the I-connector 12b. The two ends of the connecting strip 17 each have a flattened section 22 so that they are flush with the 45° chamfers 6 of the adjacent butt surfaces 4, thus creating a straight transition.

[0065] In Fig.Figure 7 shows a connection between two plates 1, comprising an eccentric fastening by means of an eccentric screw 16. The arm 10 of the L-connector 12a shown here as an example is inserted into the plate 1 via the recess 8 for receiving a connector, and the eccentric screw 16 is inserted into the rear side 3 of the plate 1 via the recess 9 for receiving an eccentric screw. To avoid play and ensure optimal force transmission during clamping, the diameter of the recess 9 for receiving an eccentric screw preferably corresponds to the diameter of the eccentric screw 16 to be received. The arrangement of the recesses 8 and 9 for receiving a connector and an eccentric screw is designed such that the arm 10 and the eccentric screw 16 meet inside the plate 1 and the eccentric screw 16 can be clamped from the outside.The distance between the connecting side 5 and the recess 9 for receiving an eccentric screw thus corresponds exactly to the length of the arm 10 of the L-connector 12a.

[0066] It should be noted that the term "include" does not exclude further elements or procedural steps, just as the terms "a" and "an" do not exclude multiple elements and steps.

[0067] The reference symbols used serve only to increase clarity and should in no way be considered restrictive, the scope of protection of the invention being defined by the claims. LIST OF REFERENCE MARKS 1 plate 2 Front / Top 3 Back / Bottom 4 butt side 5 Connection page 6 45° chamfer 7 Middle walkway 8 Recess for receiving a connector 9 Recess for receiving an eccentric screw 10 outriggers 11 button 12a L-shaped connector 12b I-shaped connector 12c T-shaped connector 12d X-shaped connector / cross-shaped connector 13 Underside 14 Sloping 15 Connecting axis 16 eccentric screw 17 Connecting strip 18th rib 19 heads 20 Recess for the insertion of a connector 21 notch 22 Flattening α Angle between outriggers β Angle between front sides QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] WO 2023 / 099218 A1

[0003] EP 3 816 412 A1

[0003] EP 2 527 662 A1

[0003] CN 220268115 U

[0003] CN 220037163 U

[0003] CN 218992050 U

[0003] US 11,821,447 B2

[0003] US 11,466,717 B2

[0003] EP 4 302 648 A1

[0003] EP 3 768 981 B1

[0003] EP 2 682 614 A1

[0003] CN 218992053 U

[0003]

Claims

[1] System encompassing: • at least two plates (1) with a plate thickness, each plate (1) having a front side (2) and a back side (3) and • Connecting sides (5) of the plates (1), each arranged between the front and back sides, wherein one or two 45° chamfers (6) are arranged along their longitudinal axis, wherein a central web (7) is provided, which in the case of two 45° chamfers is arranged between the 45° chamfers. [2] System according to claim 1, wherein the width of the central web (7) is at most half the thickness of the plate. [3] System according to one of claims 1 or 2, wherein when joining two plates (1) at an angle of 90° the 45° chamfers (6) of the respective joining sides (5) serve as a common bearing surface. [4] System according to one of the preceding claims, wherein the connecting sides (5) have at least one recess (8), the system comprising a connector (12a, 12b, 12c, 12d) for insertion into the recess (8), whereby two plates (1) can be detachably connected to each other. [5] System according to one of the preceding claims, wherein the system comprises a connecting strip (17), wherein the connecting strip (17) has a profile complementary to the connecting side (5) on two opposite sides, wherein a connecting strip (17) is arranged between two plates (1) to form a detachable connection of two plates (1) with an angle of 180° between the front sides of the plates (1). [6] System according to claim 5, wherein the connecting strip (17) has a recess (20) for the passage of a connector (12a, 12b, 12c, 12d). [7] System according to one of the preceding claims, wherein the system comprises an eccentric fastening which is inserted on the rear (3) of a plate (1) to be joined and is clamped forcefully to the plate (1) and the connector (12a, 12b, 12c, 12d). [8] System according to any of the preceding claims, wherein the connector comprises an I-shape for connecting two plates in a plane, wherein the connector comprises an L-shape for connecting two plates at a right angle, wherein the connector comprises a T-shape for connecting three plates, wherein adjacent plates form a right angle, and / or wherein the connector comprises a cross-shape for connecting four plates, wherein adjacent plates form a right angle. [9] System according to one of the preceding claims, wherein the I-shaped connector has two arms between which there is an angle of 180°, wherein the L-shaped connector has two arms between which there is an angle of 90°, wherein the T-shaped connector has three arms, wherein there is a right angle between adjacent arms, wherein the cross-shaped connector has four arms, wherein there is a right angle between adjacent arms. [10] System according to one of the preceding claims, wherein the connector has a knob for stabilization which rests on the 45° chamfers of contacting connection sides and / or wherein the connector has a head at the end of a boom to engage optimally in an eccentric screw, and / or wherein a hinge and / or a roller and / or an end strip is clamped in the recess of a plate by means of an eccentric fastening instead of a connector, and / or wherein two or more plates are connected by means of a connecting strip along their connection sides at any angles specified by the embodiment of the connecting strip, and / or wherein two plates are not connected flush along their connection sides, but are offset against each other.

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