Movable connection of slabs

Abstract

The invention relates to a system (1) comprising a first slab (2), a second slab (3) and a connector (4) for the movable, releasable connection of the slabs, wherein a first receptacle (15) of the first slab has a rigid connecting element (19) which has a cross section differing from a circular shape, wherein a first end portion (5) of the connector has a cross section corresponding thereto in order to be able to bring the first end portion into engagement with the connecting element in an engagement position (22), wherein the connector in engagement with the connecting element is pivotable such that the first end portion is connected to the connecting element in a form-fitting manner, wherein a second receptacle (17) of the second slab has a guide (23) with at least one guide profile (24), wherein a second end portion (6) of the connector has a movable closure mechanism (25) with a lock (26) in order to be able to transfer the second end portion and the second receptacle into a locked state (27), wherein the connector is pivotable about a longitudinal axis (28) of the lock and displaceable along the guide.

Description

[0001] MOVABLE JOINT OF PLATES

[0002] AREA OF INVENTION

[0003] The present invention relates to a system comprising a first plate, a second plate and a connector for movably, releasably connecting the first plate and the second plate.

[0004] STATE OF THE ART

[0005] To enable the safe and easy passage of heavy equipment, such as trucks or excavators, across unpaved ground at construction sites, it is common practice to lay slabs that provide a sufficiently stable surface. Another application is the creation of a stable floor at outdoor events, such as the floor, particularly in the spectator area, at open-air concerts. In this case, the surface of the slabs can have a suitable texture to ensure the desired adhesive properties. Such slabs are sometimes also referred to as ground protection mats.

[0006] For the aforementioned purposes, plastic or composite panels are particularly suitable. Compared to metal panels, these offer the advantage of significantly lower weight, which in turn expands transport options and greatly simplifies handling during assembly. A single panel typically measures a few meters on each side, and rectangular panels are commonly used. For example, panels measuring 3 meters in length and 2 meters in width are commercially available. Depending on its thickness, a plastic panel can therefore weigh several hundred kilograms.

[0007] For example, plastic sheets with the aforementioned dimensions of 3 m x 2 m are known, which have a thickness of 47.5 mm and weigh 235 kg each.

[0008] To prevent the slabs from shifting significantly, for example when driven over, which would compromise the desired stable surface, the slabs must be connected. Theoretically, when covering a narrow strip (for example, to create a small path with a stable surface), it is sufficient to lay the slabs linearly, so connections are only needed in one direction – and not perpendicular to it. However, in most cases, larger sections of ground need to be covered, requiring the slabs to be laid and connected in two directions. For this purpose, the slabs are usually screwed together using perforated metal plates or perforated steel strips as connectors, although the slabs can simply be laid side by side. Threads for the screws are cut into the slabs, but the mechanical strength of these threads often leaves much to be desired.Furthermore, even when using cordless screwdrivers, screwing the connectors together is quite time-consuming, as several screws usually need to be driven in per connector. Additionally, the perforated plates, steel strips, or screws used often protrude slightly from the surface of the panels, or at least the screw heads protrude from the connectors. These protruding parts are highly vulnerable when the panels are driven over by heavy equipment, especially tracked vehicles; that is, there is a risk of the connection being severed. Finally, this solution is disadvantageous because the connectors, in particular, expand and contract with strong temperature fluctuations, which can also lead to the destruction of the (screw) connection.

[0009] From WO 2020 / 209805 Al, a connector for overlapping slabs is known, which can be integrated into the slabs in the area intended for overlapping. Therefore, this connector is primarily suitable for sufficiently thick slabs, typically 8 cm thick, which represents an additional—and thus disadvantageous—limitation. Furthermore, laying overlapping slabs is considerably more complex than simply laying non-overlapping slabs side by side, as the overlapping areas usually have a different thickness compared to the rest of the slab. Additionally, attention must be paid to the correct sequence of slab edges, which must be positioned above or below the edges of adjacent slabs. Overall, very precise installation is required, which entails a correspondingly high level of effort.

[0010] Furthermore, in the case of overlapping installation, damage or even destruction of the described connection and the panels, especially in the area of ​​the overlap, can occur due to the essentially rigid connection on the one hand and the unavoidable thermal expansion / contraction of the panels and possibly the connectors on the other.

[0011] Furthermore, with the described known connection types, uneven ground, especially holes or small depressions in or over which the slabs are laid, proves to be critical because, particularly when driving over them with heavy equipment, correspondingly strong tilting or offsetting, typically of 10 cm to 15 cm or more, of individual slabs can occur, so that the connections and the slabs are damaged or even destroyed.

[0012] TASK OF INVENTION

[0013] It is therefore an object of the present invention to provide a method for joining panels that avoids the aforementioned disadvantages. In particular, the joining should be quick and easy, even when the panels are laid across their entire surface – and not just in one direction. Preferably, the joining should not be limited to panels of a specific thickness. Preferably, the joining should not produce any protruding parts. In particular, the joining should be robust against temperature fluctuations. Preferably, the joining should not place high demands on the accuracy of the panel laying, especially with regard to the exact spacing and / or the precise alignment of the panels relative to each other.Preferably, the slabs and their connection should not be damaged or destroyed when heavy equipment drives over the connected slabs, even if the slabs are laid in or over uneven ground.

[0014] PRESENTATION OF THE INVENTION

[0015] To solve the above-mentioned problem, according to the invention a

[0016] A system comprising a first plate, a second plate, and a connector for movably and detachably connecting the first plate and the second plate, wherein the connector has a first end section, a second end section, and a central section arranged between the first end section and the second end section, the central section extending parallel to a longitudinal axis of the connector, wherein the first plate has a first receptacle with a first receiving recess, the first receiving recess extending from a top surface of the plate towards a bottom surface of the plate and being open towards an edge of the first plate, wherein the second plate has a second receptacle with a second receiving recess, the second receiving recess extending from a top surface of the plate towards a bottom surface of the plate and being open towards an edge of the second plate.wherein the first receptacle has a rigid connecting element which is arranged in the first receiving recess and has a cross-section deviating from a circular shape, wherein the first end section of the connector has a corresponding cross-section in order to be able to engage the first end section with the connecting element when the connector is in an engagement position with the first receptacle, wherein the connector in engagement with the connecting element is pivotable from the engagement position up to a second limit angle of a first angle such that between a first limit angle and the second limit angle the first end section is positively connected to the connecting element, wherein the first angle is enclosed by the longitudinal axis of the connector and a normal to the top surface of the first plate, wherein the second receptacle has a guide,which is arranged in the second receiving recess and has at least one guide profile, wherein the second end section of the connector has a movable locking mechanism with a latch in order to bring the latch into positive engagement with the at least one guide profile by moving the locking mechanism and to bring the second end section and the second receiving recess into a locked state, wherein in the locked state the connector is pivotable about a longitudinal axis of the latch and is displaceable with the latch at least section by section along the guide.

[0017] If the plates are connected to each other, the system could also be described as a kind of plate composite, whereby the plates are not rigidly but movably connected to each other.

[0018] The fact that the connecting element is "rigid" clearly means that the connecting element is essentially rigid, since ideally rigid bodies do not exist in practice.

[0019] Because the cross-section of the connecting element is not circularly symmetrical, but deviates from circular symmetry, the positive locking is achieved by tilting or pivoting the connector after it has been brought into engagement with the connecting element in the engaged position. Accordingly, the first end section of the connector typically has a clear cross-section that is designed to be suitable or corresponding to the cross-section of the connecting element in order to accommodate the connecting element section by section within the clear cross-section.

[0020] The connector enables extremely rapid joining of the first and second plates, which are typically positioned side by side during the joining process. The connector can therefore also be referred to as a quick connector. The speed of the joining process results from the fact that the connector's first end section only needs to be moved into the engagement position to engage with the connecting element. The engagement position is associated with a specific, typically relatively narrow range of the first angle, with the first end section typically being slid over the connecting element. The actual connection is then achieved by creating a positive fit between the first end section and the connecting element by twisting or pivoting the connector relative to the connecting element, thus changing the first angle so that it lies between the first and second limit angles.That is, at this angle the connector cannot simply be pulled off the connecting element. Typically, when pivoting to larger initial angles, the connector is pivoted towards the edge towards which the first receiving recess is open, preferably at least partially into the first receiving recess.

[0021] Theoretically, it is not impossible that the positive locking effect is also present beyond the second limiting angle, i.e., if the connector is pivoted to even larger first angles.

[0022] To detachably connect the second end section to the second receptacle of the second plate using the movable locking mechanism, it is sufficient to actuate the locking mechanism so that the bolt engages with at least one guide profile, thereby establishing the locked state. For this to occur, the second end section must obviously be positioned relative to the second receptacle in such a way that said engagement is possible when the locking mechanism is actuated.

[0023] The movable locking mechanism can be actuated by movement. For this purpose, purely mechanical locking mechanisms are suitable, such as those with a sliding, pivoting, or rotating bolt.

[0024] The guide, or at least one guide profile, and the bolt are, in particular in their geometry, coordinated with each other or corresponding to each other in order to ensure the engagement of the bolt with the at least one guide profile.

[0025] When connecting the first plate to the second plate, the connector is pivoted towards the second receptacle or second receiving recess after the first end section has been connected to the connecting element, with the plates typically arranged side by side.

[0026] The plates are then movably connected to each other. This mobility results, firstly, from the movement of the bolt, particularly within its guide, when locked. Secondly, the connector, with its first end section, remains pivotable, at least with respect to the first angle.

[0027] The aforementioned flexibility allows for trouble-free thermal expansion and contraction of the panels and, if applicable, the connector. For example, in practice, rectangular panels with side lengths of 2 m and 4 m can experience thermal expansion / contraction of typically 4 cm to 5 cm. The solution according to the invention allows for a corresponding gap or lateral distance between the panels to be planned during installation, with the sliding mechanism within the guide ensuring the necessary flexibility for expansion / contraction. This sliding mechanism is provided over a certain range to facilitate locking.

[0028] The aforementioned adjustability, together with the pivotability in the first and second mountings, allows for a certain vertical offset between the two connected plates. This offset can occur, for example, if one of the plates tilts when resting on an uneven surface and subjected to a load, particularly from a heavy vehicle. The connector can move within a certain range of motion, limited by the first and second mountings, more precisely by the dimensions of the first and second mounting recesses. If the vertical offset between the plates becomes too great, the connector will abut at least one section of the plates that defines the mounting recesses, unless these recesses are designed as continuous openings extending from the top to the bottom of the plates.Accordingly, the movement range of the connector can be specifically predetermined by the geometric design and dimensioning of the receiving recesses.

[0029] An overlap of the plates to be joined is clearly not necessary for the joining process, which is why the thickness or material strength of the plates does not need to be reduced for an overlap and the risk of plate breakage is correspondingly greatly reduced.

[0030] The two plates are therefore connected to each other, or a connected state of the first and second plate exists, if the first end section is positively connected to the connecting element and the second end section is in a locked state with the second receptacle.

[0031] To release the connection, the locking mechanism is actuated again or in the opposite direction to release the engagement of the bolt with the guide profile.

[0032] The connection of the first end section to the connecting element can then be released – by reversing the connection described above. That is, first the connector is pivoted into the engagement position, and then the engagement of the first end section with the connecting element is released, typically by pulling the connector away from the connecting element. That is, in the engagement position, the engagement can be made and released.

[0033] The central section can have a wide variety of shapes and, for example, be web-like, which is a simple and cost-effective manufacturing option that avoids protruding parts of the central section and ensures high mechanical stability, especially with regard to tensile loads. Accordingly, the plates—even if they are laid on uneven ground and driven over by heavy equipment—cannot, in principle, be moved arbitrarily far towards or away from each other. Ultimately, the movement is restricted by the connector once it has fully utilized its range of motion.

[0034] As mentioned, the movement range of the connector can be specifically predetermined by the geometric design and dimensioning of the receiving recesses. In order to ensure the largest possible movement range, particularly with regard to the pivotability of the connector relative to the connecting element on the one hand and relative to the second receiving recess or around the longitudinal axis of the bolt in the locked state on the other, a preferred embodiment of the system according to the invention provides that the first receiving recess and / or the second receiving recess forms an opening extending at least partially from the respective upper surface to the lower surface of the plate. Accordingly, the connector can move from the respective upper surface of the plate through the first or second receiving recess to the lower surface of the plate, which allows for a large vertical offset between the first and second plates. That is to say,The top surfaces of the first and second plates can be arranged in parallel, but have a correspondingly large vertical distance to each other, the distance being measured parallel to the normal to the top surface of the first (and thus also the second) plate.

[0035] As already mentioned, the two slabs can also be spaced apart laterally, with this distance being measured parallel to a direction that is normal to the said normal and to those edges of the two slabs that are opposite each other and (in the case of parallel slabs) run parallel to each other.

[0036] The vertical distance and, if applicable, the lateral distance of the plates are in turn limited by the dimensions of the connector, especially parallel to its longitudinal axis, if the bar cannot be moved further along the guide.

[0037] In a preferred embodiment of the system according to the invention, it is provided that in the engagement position the first angle, preferably in magnitude, is less than or equal to the first limiting angle.

[0038] It should be emphasized that this does not fundamentally preclude the possibility that, in the intervention position, the first angle may assume values ​​that are negative and relatively large in magnitude, particularly larger than the first critical angle. Accordingly, it is theoretically possible that the intervention position exists over a relatively large range of the first angle.

[0039] Preferably, however, the above-mentioned quantitative limitation of the first angle in the engagement position is given, which is simpler from a manufacturing perspective.

[0040] In a preferred embodiment of the system according to the invention, the first limiting angle is located in a range of 1° to 10°, preferably from 1° to 5°. Accordingly, the engagement position is typically given in a relatively narrow range around the normal to the top surface of the first plate, preferably in a symmetrical range around the normal, which in practice allows the user easy and precise operation of the connector when connecting it to the first receptacle or to the connecting element.

[0041] In a preferred embodiment of the system according to the invention, the second limiting angle is at least 90°, preferably at least 110°, and particularly preferably at least 135°. Accordingly, the connector, when engaged with the connecting element, can be pivoted, in particular from the engagement position towards the first receiving recess, up to a first angle of at least 110°, preferably at least 135°.

[0042] Analogous to what has been said above, this results in a large possible vertical offset between the first and second plates relative to each other if they are movably connected to each other by the connector.

[0043] Alternatively or additionally, to ensure the greatest possible vertical offset between the first and second plates when they are movably connected by the connector, a preferred embodiment of the system according to the invention provides that, in the locked state, the connector is pivotable about the longitudinal axis of the bolt within a rotational angle range of at least -40° to 40°. At -40°, the first end section is arranged below the underside of the second plate; at 40°, the first end section is arranged above the top surface of the second plate, with an upward direction or vertical direction relative to the second plate pointing from its underside to its top surface.

[0044] Accordingly, viewed in the aforementioned vertical direction, the first end section is located at -40° in front of the underside of the second plate and at +40° behind the top surface of the second plate.

[0045] In a preferred embodiment of the system according to the invention, the connecting element is designed, at least in sections, as a round bar with a flattened side, preferably with two opposing flattened sides, wherein the first end section has a substantially omega-shaped clear cross-section, which is open to the outside with a mouth having a certain width, the width of which is smaller than a central opening diameter of the clear cross-section. This ensures a particularly simple and economical geometry for the connecting element and the corresponding first end section of the connector.The cross-section of the first end section is somewhat similar to an open-end wrench (sometimes also called a "spanner wrench"), but in the first end section, as explained, the jaw opening is smaller than the central opening diameter, whereas the open-end wrench usually has parallel flanks or wrench surfaces whose distance from each other corresponds to the jaw opening.

[0046] The first end section can be slid over the connecting element using the jaw when the connector is in the engagement position for the first receiving recess, wherein one or two planes in which the one or two flattened sides of the connecting element run are typically perpendicular or nearly perpendicular (or deviating only slightly, perhaps by a few degrees) to the direction in which the jaw width is measured. This direction is determined by the shortest connecting line that joins opposite sides of the jaw. In a particularly preferred embodiment of the system according to the invention, the flattened side, preferably the two flattened sides, is / are parallel to the normal to the top surface of the first plate and parallel to the edge of the first plate towards which the first receiving recess is open.If the jaw of the first end section is not angled to the longitudinal axis of the connector, the resulting engagement position is such that the longitudinal axis of the connector is essentially perpendicular or nearly perpendicular (or deviating only slightly, perhaps by a few degrees) to the top surface of the first plate. In practice, this allows the user to operate the connector easily and precisely when connecting it to the first receptacle. The connector is then typically pivoted to create the positive connection with the fastener around a pivot axis parallel to the edge of the first plate, towards which edge the first receptacle is open. If the second plate is laid side by side with parallel edges next to the first plate, this pivoting action moves the connector, with its second end section, towards the second receptacle.

[0047] In a particularly preferred embodiment of the system according to the invention, the connector is pivotable about a longitudinal axis of the connecting element and about a pivot axis perpendicular to the longitudinal axis of the connecting element. Preferably, the central opening diameter of the clear cross-section varies over the thickness of the first end section such that the central opening diameter decreases inwards from opposite outer surfaces of the first end section. This allows the connector to pivot in such a way that a certain lateral offset between the first and second plates connected by the connector is also possible, provided that the two plates are arranged with parallel edges, and preferably in the same plane, and a relative displacement of the two plates occurs parallel to the edges.

[0048] Alternatively or additionally, to enable such a lateral offset of the two plates (connected by means of the connector) to each other, a preferred embodiment of the system according to the invention provides that, viewed towards the top surface of the first plate, the first receiving recess widens at least partially, in particular in a V-shape, towards the edge towards which the first receiving recess is open, and / or that, viewed towards the top surface of the second plate, the second receiving recess widens at least partially, in particular in a V-shape, towards the edge towards which the second receiving recess is open.This extension increases the movement range for the connector to such an extent that the aforementioned pivoting around a pivot axis perpendicular to the longitudinal axis of the connecting element is easily possible within a certain range defined by the inner walls of the first and second receptacles, which delimit the respective receiving recess. Typically, this allows for a lateral offset of the plates connected by the connector from each other of at least 2 cm to 4 cm.

[0049] In a preferred embodiment of the system according to the invention, the at least one guide profile is formed by two opposing elongated holes, wherein, in the locked state, the bolt is arranged in the elongated holes with two opposing end sections. This enables a particularly simple and cost-effective solution in terms of design.

[0050] In a preferred embodiment of the system according to the invention, it is provided that the connector between the first end section and the middle section has two kinks and / or bends, preferably in an essentially S-shape, and / or that the connector between the second end section and the middle section has two kinks and / or bends, preferably in an essentially S-shape.

[0051] The kinks / bends act as predetermined deformation points. This means that, particularly under tensile stress exceeding a certain limit—for example, if the first and second plates, while connected, are moved too far apart under force—the connector initially deforms in the areas of the kinks / bends, typically being pulled apart or stretched. This does not damage the first and / or second mounting, which would otherwise necessitate a potentially cumbersome replacement of the first and / or second plate. Instead, only the connector is damaged by plastic deformation. This plastic deformation is immediately visible to the user, allowing for easy identification and replacement of the damaged connector.

[0052] Furthermore, the kinks / bends facilitate a design of the connector such that, under even greater tensile forces, after the described plastic deformation of the connector has occurred, the first end section can deform in such a way that the positive-locking connection with the connecting element can be released. In particular, the opening of the first end section can open accordingly, so that the connector, with its first end section, is pulled away from the connecting element under the aforementioned even greater force.

[0053] This again prevents damage to the first and / or second recording, and therefore eliminates the need to replace the first and / or second plate. The damaged connector, however, can easily be replaced with an intact one.

[0054] In a preferred embodiment of the system according to the invention, it is provided that the connector has a substantially U-shaped cross-section at least in the central section.

[0055] Preferably, the U-shaped cross-section is also present in areas of the aforementioned kinks / bends.

[0056] Firstly, the U-shape results in material savings, which is not only economically advantageous, but also literally makes handling the connector easier for the user.

[0057] Secondly, the U-shaped cross-section facilitates the design of predetermined deformation points and / or predetermined breaking points for tensile loads on the connector that exceed a certain, predefined threshold. This can be achieved, for example, by using less material in certain areas. These material savings can be made particularly within the U-shape to ensure a uniform and unobstructed appearance of the connector from the outside.

[0058] In a preferred embodiment of the system according to the invention, the connector is made of metal, preferably steel, and particularly preferably stainless steel. Similarly, in a preferred embodiment of the system according to the invention, the first receptacle and / or the second receptacle are made at least partially, preferably completely, of metal, preferably steel, and particularly preferably stainless steel.

[0059] Using metal as a material ensures the highest demands on the mechanical stability and durability of the connector or the first and / or second receptacle. In principle, even non-corrosion-resistant metals or metal alloys are conceivable.

[0060] With regard to advantageous corrosion resistance or corrosion protection, stainless steel or coated steel, especially high-grade steels, is particularly suitable. The coating mentioned can be, for example, galvanizing, a suitable paint, or a plastic coating.

[0061] However, other sufficiently mechanically stable materials are of course not excluded, such as correspondingly stable plastics or composite materials like fiber-reinforced plastics.

[0062] As described above, the degree of mobility of the interconnected first and second plates is significantly influenced by, among other things, the range of motion available to the connector. Depending on the application, it may be desirable to selectively restrict the mobility of the connected plates. This can be achieved by selectively restricting the range of motion available to the connector. In a preferred embodiment of the system according to the invention, at least one first restriction element is provided for fixed, at least partial, arrangement in the first receiving recess, and / or at least one second restriction element is provided for fixed, at least partial, arrangement in the second receiving recess. The first / second restriction element is located in the first / second receiving recess, respectively.The receiving recess is designed to allow at least partial arrangement within the respective receiving recess and fastening, in order to block movement of the connector beyond a certain range, if desired in specific applications. This means that the plates or their receptacles do not need to be specially adapted and manufactured; instead, the same plates can be used for a wide variety of applications, which can then be optimized for the respective application with first and second restraint elements.

[0063] It is understood that the fastening of the first / second restraint element may be detachable, in particular to allow the respective plate to be adapted to other applications. It may be provided that the fastening can be carried out in the first / second receptacle using detachable fasteners known per se, such as screws.

[0064] In addition to restricting the movement space for the connector, the restriction elements can also be used to close the receiving recesses towards the respective top surface of the slab as much as possible, e.g. to facilitate walking on the slabs with different types of footwear in certain applications.

[0065] The first and second restraint elements can be made of a wide variety of materials, in particular the same material as the recordings or the same material as the plates.

[0066] In a preferred embodiment of the system according to the invention, the first plate and / or the second plate are made of plastic or composite material, in particular layered composite material. Advantages include, besides the weight savings compared to metal plates, the ease of machining, which is beneficial with regard to the production of the receptacles with the receiving recesses, and the wide variety of surface finishes. The latter can, for example, be optimized to prevent or minimize the risk of slipping – for example, of footwear or tires – even on wet plate surfaces.

[0067] It should be noted that the term "plastics" includes, in particular, high-performance plastics. Furthermore, it should be noted that composite materials naturally also include fiber-reinforced plastics.

[0068] Naturally, the plates can be connected to each other at several points along their edges to achieve the most stable plate assembly possible. Accordingly, in a preferred embodiment of the system according to the invention, the first plate has several first receptacles and / or the second plate has several second receptacles, with several connectors being provided.

[0069] By selecting locations in the area of ​​or at the edges of different, preferably adjacent, and especially preferably all, sides of the panels, the panels can be connected and laid not only linearly, but also in different, perpendicular directions, thus enabling a surface-level installation. Accordingly, in a particularly preferred embodiment of the system according to the invention, the first receptacles are arranged at the edges of different, preferably adjacent, and especially preferably all, sides of the first panel, and / or the second receptacles are arranged at the edges of different, preferably adjacent, and especially preferably all, sides of the second panel.

[0070] BRIEF DESCRIPTION OF THE FIGURES

[0071] The invention will now be explained in more detail using two exemplary embodiments. The drawings are exemplary and are intended to illustrate the inventive concept, but in no way to restrict or even exhaustively represent it.

[0072] This shows:

[0073] Fig. 1 shows a detailed view of a first [unclear text].

[0074] From a specific embodiment of a system according to the invention, comprising a first and a second plate, which are movably and detachably connected to each other by means of a connector.

[0075] Fig. 2 shows a sectional view and a detailed view of the first plate and the connector, wherein the connector is in an engagement position with a first receptacle of the first plate in order to be able to engage with a connecting element of the first receptacle with a first end section.

[0076] Fig. 3 is a sectional view analogous to Fig. 2, where the connector is in the engagement position for the first receptacle and is engaged with the connecting element.

[0077] Fig. 4 shows a sectional view analogous to Fig. 3, wherein the connector is pivoted about a first angle and positively connected to the connecting element.

[0078] Fig. 5 is a sectional view analogous to Fig. 4, wherein the connector with a second end section is pivoted into a second receptacle of a second plate, wherein the second end section and the second receptacle are in a locked state, wherein the first plate and the second plate are in a connected state, and wherein the first plate and the second plate are in contact with each other.

[0079] Fig. 6 shows a sectional view analogous to Fig. 5, wherein the first plate and the second plate are arranged laterally offset from each other.

[0080] Fig. 7 is a sectional view analogous to Fig. 5, wherein the first plate and the second plate are arranged vertically offset from each other, with the second plate being arranged higher than the first plate.

[0081] Fig. 8 shows a sectional view analogous to Fig. 5, wherein the first plate and the second plate are arranged vertically offset from each other, with the first plate being arranged higher than the second plate.

[0082] Fig. 9 shows a sectional view analogous to Fig. 7, where a smaller vertical offset is given due to constraint elements of a second embodiment of the system according to the invention.

[0083] Fig. 10 shows a sectional view analogous to Fig. 8, where a smaller vertical offset is given due to constraint elements of the second embodiment of the system according to the invention.

[0084] WAYS TO IMPLEMENT THE INVENTION

[0085] Fig. 1 shows a detailed top view of a first embodiment of a system 1 according to the invention, comprising a first plate 2 and a second plate 3, which are movably and detachably connected to each other by means of a connector 4. The plates 2 and 3 are rectangular, with Fig. 1 showing only an area of ​​the first plate 2 with a first receptacle 15 and of the second plate 3 only an area with a second receptacle 17. A top surface 9 of the first plate 2 and a top surface 11 of the second plate 3 each have a texture 41, which is intended to provide improved grip and prevent slippage on the respective top surface 9 and 11.

[0086] The connector 4 has a first end section 5, a second end section 6 and a central section 7 arranged between the first end section 5 and the second end section 6, wherein the central section 7 extends parallel to a longitudinal axis 8 of the connector 4, see Fig. 2.

[0087] The first plate 2 has a first receptacle 15 with a first receiving recess 16 for the connector 4 or for its first end section 5, wherein the first receiving recess 16 extends from the top of the plate 9 towards a bottom of the plate 10 and to an edge

[0088] 13 of the first plate 2 is open. Similarly, the second plate 3 has a second recess 17 with a second receiving recess 18, wherein the second receiving recess 18 extends from the top of the plate 11 towards a bottom of the plate 12 and to an edge.

[0089] 14 of the second plate 3 is open, see e.g. Fig. 5.

[0090] In the illustrated first embodiment, the first receiving recess 16 forms, at least partially, an opening extending from the upper surface 8 to the lower surface 10 of the first plate 2. Similarly, in the illustrated first embodiment, the second receiving recess 18 forms, at least partially, an opening extending from the upper surface 11 to the lower surface 12 of the second plate 3. Accordingly, a large range of motion for the connector 4 is achieved. The first receiving recess 15 has a rigid connecting element 19, which is arranged in the first receiving recess 16 by means of a bracket 39. The bracket 39 is connected to the first plate 2 in a manner known per se, in particular by fastening.The connecting element 19 has a cross-section that deviates from a circular shape, wherein the first end section 5 of the connector 4 has a corresponding cross-section in order to be able to engage the first end section 5 with the connecting element 19 when the connector 4 is in an engagement position 22 to the first receptacle 15, cf. Fig. 2.

[0091] In the illustrated first embodiment, the connecting element 19 is designed as a round bar with two opposing flattened sides 29. The first end section 5 accordingly has a substantially omega-shaped clear cross-section 30, which is open to the outside by a jaw 31 having a jaw width 32, wherein the jaw width 32 is smaller than a central opening diameter 33 of the clear cross-section 30. The jaw 31 allows the first end section 5 to be slid over the connecting element 19 when the connector 4 is in the engagement position 22 for the first receptacle 15, wherein two planes in which the two flattened sides 29 of the connecting element 19 run are, in the illustrated first embodiment, perpendicular or approximately perpendicular to the direction in which the jaw width 32 is measured, cf. Fig. 3.This direction results from the shortest connecting line that links opposite sides of the mouth 31.

[0092] In the first illustrated embodiment, the flattened sides 29 are parallel to a normal 20 to the top surface 9 of the first plate 2 and parallel to the edge 13 of the first plate 2, towards which edge 13 the first receiving recess 16 is open. In engagement with the connecting element 19, the connector 4 can be pivoted from the engagement position 22 (see Fig. 3) up to a second limit angle of a first angle 21 such that the first end section 5 is positively connected to the connecting element 19 between a first limit angle and the second limit angle, the first angle 21 being enclosed by the longitudinal axis 8 of the connector 4 and the normal 20 to the top surface 9 of the first plate 2, see Fig. 4.

[0093] The second receiving recess 17 has a guide 23 which is arranged in the second receiving recess 18 and has at least one guide profile 24. In the illustrated first embodiment, the at least one guide profile 24 is formed by two opposing elongated holes, see e.g. Fig. 6. In the illustrated first embodiment, the guide 23 is connected to the second plate 3 in a manner known per se, in particular by screwing, wherein a positive locking of the guide 23 with a projection 40 of the second plate 3 is also provided to ensure a particularly good hold of the guide 23 in the second receiving recess 18.

[0094] The second end section 6 of the connector 4 has a movable locking mechanism 25 with a bolt 26, so that by moving the locking mechanism 25 the bolt 26 can be brought into, in particular a positive-locking, engagement with the at least one guide profile 24 and the second end section 6 and the second receptacle 17 can be brought into a locked state 27, cf. Fig. 6. In the illustrated first embodiment, the locking mechanism 25 - and thus the bolt 26 - is movable by rotation, wherein the locking mechanism 25 has a receptacle for a tool, in particular for an Allen key, for corresponding actuation. In the locked state 27, the bolt 26 is arranged with two opposing end sections in the elongated holes of the at least one guide profile 24.

[0095] In the locked state 27, the connector 4 can be pivoted about a longitudinal axis 28 (see Fig. 1) of the bolt 26 and can be displaced with the bolt 26 at least sectionally along the guide 23.

[0096] In summary, the creation of the movable connection between the first plate 2 and the second plate 3 by means of the connector 4 is illustrated in the sequence of Figs. 2, 3, 4, and 5. The actual connection of the first end section 5 with the connecting element 19 is achieved by creating a positive fit, by rotating or pivoting the connector 4 relative to the connecting element 19 about a longitudinal axis 34 of the connecting element 19, so that the first angle 21 changes such that it lies between the first limit angle and the second limit angle, cf. Figs. 3 and 4. That is, at this angle, the connector 4 cannot simply be pulled off the connecting element 19.

[0097] In the illustrated first embodiment, the first limiting angle lies in a range of 1° to 5° and, in the engagement position 27, the first angle 21 is less than or equal to the first limiting angle in magnitude. The second limiting angle in the illustrated first embodiment is at least 110° and lies particularly in the range of approximately 130°.

[0098] Theoretically, it is not excluded that the positive locking is also given beyond the second limit angle, i.e., if the connector 4 is pivoted to even larger first angles 21.

[0099] When connecting the first plate 2 with the second plate 3, the connector 4 is pivoted in the direction of the second receptacle 17 or second receiving recess 18 after the first end section 5 has been connected with the connecting element 19, to connect the second end section 6 with the second receiving recess 17, respectively, with the plates 2, 3 typically being arranged next to each other.

[0100] After the locked state 27 has been established, the plates 2 and 3 are then movably connected to each other, or in a connected state 37. To release the connection, the locking mechanism 25 is actuated again, or in the opposite direction, to disengage the bolt 26 from the guide profile 24. The connection of the first end section 5 with the connecting element 19 can then be released – by reversing the sequence of the connection described above. That is, first the connector 4 is pivoted into the engagement position 22, and then the engagement of the first end section 5 with the connecting element 19 is released by pulling the connector 4 away from the connecting element 19. Thus, in the engagement position 22, the engagement can be established and released.

[0101] The mobility of the plates 2, 3 in the connected state 37 results firstly from the mobility of the bolt 26, in particular by a displacement, in the guide 23 in the locked state 27. Secondly, the connector 4 with its first end section 5 remains pivotable at least with respect to the first angle 21.

[0102] The aforementioned mobility allows for trouble-free thermal expansion and contraction of the plates 2, 3 and, if applicable, the connector 4, whereby in particular the slidability of the bolt 26 in the guide 23 or in at least one guide profile 24 ensures the mobility relevant for expansion / contraction, cf. on the one hand Fig. 5, in which the plates 2, 3 lie essentially in the same plane and abut each other at their edges 13, 14, and on the other hand Fig. 6, in which the plates 2, 3 are laterally offset from each other, with the bolt 26 being displaced in the guide 23 compared to Fig. 5.

[0103] The combination of the mobility or pivotability of the first end section 5 and the pivotability and displacement of the bolt 26 in the locked state 27 allows an offset of the plates 2, 3 to each other in a vertical direction 38, which is illustrated in Fig. 7 and Fig. 8 and can also be referred to as vertical offset or height offset.

[0104] Since, as described above, the receiving recesses 16, 18 are designed, at least in sections, as openings extending from the respective upper surface 9, 11 to the respective lower surface 10, 12 of the plates, the connector 4 can move from the respective upper surface 9, 11 through the first receiving recess 16 or second receiving recess 18 to the respective lower surface 10, 12 of the plates, which allows for a large vertical offset between the first plate 2 and the second plate 3. That is, the upper surfaces 9, 11 of the first plate 2 and the second plate 3 can be arranged parallel to each other, but have a correspondingly large vertical distance from each other, with the distance being parallel to the vertical direction 38 or 38. measured to a normal to the top surface of plate 9 of the first plate 2 (and thus also of the second plate 3).

[0105] The vertical distance and, if applicable, the lateral distance of the plates 2, 3 are in turn limited by the dimensions of the connector 4, in particular parallel to its longitudinal axis 8, if the bar 26 cannot be moved further along the guide 23.

[0106] In the first illustrated embodiment, in the locked state 27, the connector 4 is pivotable about the longitudinal axis 28 of the bolt 26 at least within a rotational angle range of -40° to 40°. At approximately -40°, the first end section 5, viewed in the vertical direction 38, is located below or in front of the underside 12 of the second plate 3, see Fig. 7. At approximately 40°, the first end section 5, viewed in the vertical direction 38, is located above or behind the top surface 11 of the second plate 3, see Fig. 8.

[0107] In the first embodiment shown, the connector 4, in engagement with the connecting element 19, is not only pivotable about the longitudinal axis 34 of the connecting element 19, but also about a pivot axis 42 perpendicular to the longitudinal axis 34, wherein the central opening diameter 33 of the clear cross-section 3 varies over a thickness of the first end section 5 such that the central opening diameter 33 decreases inwards from opposite outer surfaces of the first end section 5. This allows the connector 4 to pivot in such a way that a certain lateral offset of the first plate 2 and second plate 3 connected by the connector 4 is also possible when the two plates 2, 3 are arranged with parallel edges 13, 14 and preferably in the same plane, and a relative displacement of the two plates 2, 3 takes place parallel to the edges 13, 14.Due to the sliding motion of the bolt 26 in the guide 23 or in at least one guide profile 24, the connector 4 can also pivot not only about the longitudinal axis 28 of the bolt 26, but also about a further pivot axis 43 perpendicular to the longitudinal axis 28, cf. Fig. 6.

[0108] In order to optimize the movement range of the connector 4 for the aforementioned lateral offset of the plates 2, 3 relative to each other, the illustrated first embodiment is provided that, viewed towards the upper surface 9 of the first plate 2, the first receiving recess 16 widens at least partially, in particular in a V-shape, towards the edge 13, towards which the first receiving recess 16 is open, and that, viewed towards the upper surface 11 of the second plate 3, the second receiving recess 18 widens at least partially, in particular in a V-shape, towards the edge 14, towards which the second receiving recess 18 is open, cf. Fig. 1. This widening extends the movement range for the connector 4 so that the aforementioned pivoting around the pivot axis 42 is possible.The further pivot axis 43 is easily possible within a certain range, which is defined by the inner walls of the first mounting 15 and the second mounting 17, respectively, which limit the respective mounting recess 16, 18. Typically, this allows a lateral offset of the plates 2, 3 connected by means of the connector 4 to each other of at least a range of 2 cm to 4 cm.

[0109] In the illustrated first embodiment, the connector 4 runs between the first end section 5 and the middle section 7 with two kinks and / or bends, preferably substantially S-shaped, and the connector 4 runs between the second end section 6 and the middle section 7 with two kinks and / or bends, preferably substantially S-shaped, see Fig. 2. The kinks / bends act as predetermined deformation points. That is, particularly under a tensile load that exceeds a certain limit, for example, if the first plate 2 and the second plate 3 are moved too far apart from each other under the influence of force in the connected state 37, the connector 4 initially deforms in the areas of the kinks / bends, whereby the connector 4 is typically pulled apart or stretched there.Damage to the first mounting 15 and / or second mounting 17, which might necessitate a cumbersome replacement of the first plate 2 and / or second plate 3, does not occur here; instead, only the connector 4 is damaged by plastic deformation. This plastic deformation is immediately visible to the user, allowing the connector 4 to be easily identified and replaced.

[0110] Furthermore, the kinks / bends facilitate the design of the connector 4 such that, under even greater tensile forces, after the described plastic deformation of the connector 4 has occurred, the first end section 5 can deform in such a way that the positive-locking connection with the connecting element 19 can be released. In particular, the jaw 31 of the first end section 5 can open accordingly, so that the connector 4, with its first end section 5, is pulled away from the connecting element 19 under the aforementioned even greater force. This again prevents damage to the first receptacle 15 and / or second receptacle 17, and therefore does not require replacement of the first plate 2 and / or second plate 3. The damaged connector 4, on the other hand, can easily be replaced with an intact one.

[0111] In the first illustrated embodiment, the connector 4 has a U-shaped cross-section in the central section 7 and in the area of ​​the kinks / bends. Besides the advantageous material savings, this also allows the aforementioned predetermined deformation points to be easily and inconspicuously implemented by providing slightly less material in these areas, whereby the material savings can be made particularly within the U-shape.

[0112] Figures 9 and 10 relate to a second embodiment, which differs from the first embodiment essentially only by the addition of at least one first restraint element 35 and at least one second restraint element 36. The above statements regarding the first embodiment apply accordingly, unless otherwise stated. The at least one first restraint element 35 is provided for fixed, at least sectionally, arrangement in the first receiving recess 16. Similarly, the at least one second restraint element 36 is provided for fixed, at least sectionally, arrangement in the second receiving recess 18.

[0113] The restraint elements 35, 36 shown in Fig. 9 and Fig. 10 are detachably fastened in the first receptacle 15 and second receptacle 17 respectively in a manner known per se, in particular by screwing. By means of the restraint elements 35, 36, the range of motion available to the connector 4 is selectively restricted in order to selectively limit the movement of the plates 2, 3 in the connected state 37 if this is desired in a specific application.

[0114] In both of the illustrated examples, the connector 4 is made of stainless steel.

[0115] Likewise, in both illustrated examples, the first and second mountings are at least partially, preferably completely, made of stainless steel.

[0116] Finally, in both of the illustrated examples, the plates 2, 3 are made of plastic or composite material.

[0117] REFERENCE MARK LIST

[0118] 1 system

[0119] 2 First record

[0120] 3 Second record

[0121] 4 connectors

[0122] 5 First end section of the connector

[0123] 6 Second end section of the connector

[0124] 7 Middle section of the connector

[0125] 8 Longitudinal axis of the connector

[0126] 9 Top of the first plate

[0127] 10 Underside of the first plate

[0128] 11 Top of the second plate

[0129] 12 Underside of the second plate

[0130] 13 Edge of the first plate

[0131] 14 Edge of the second plate

[0132] 15 First recording

[0133] 16 First admission examination

[0134] 17 Second recording

[0135] 18 Second recording

[0136] 19 connecting element

[0137] 20 normals on the top surface of the first plate

[0138] 21 First angle 22 Intervention position

[0139] 23 Leadership

[0140] 24 Leadership profile

[0141] 25 Locking mechanism

[0142] 26 bars

[0143] 27 Locked state

[0144] 28 Longitudinal axis of the bar

[0145] 29 Flattened side

[0146] 30 lights cross-section

[0147] 31 Mouth

[0148] 32 mouth width

[0149] 33 Central opening diameter

[0150] 34 Longitudinal axis of the connecting element

[0151] 35 First restriction element

[0152] 36 Second restriction element

[0153] 37 Connected state

[0154] 38 Altitude

[0155] 39 Mounting of the connecting element

[0156] 40 lead

[0157] 41 Structuring

[0158] 42 Swivel axis

[0159] 43 Additional pivot axis

Claims

REQUIREMENTS 1. System (1) comprising a first plate (2), a second plate (3) and a connector (4) for movably and detachably connecting the first plate (2) and the second plate (3), wherein the connector (4) has a first end section (5), a second end section (6) and a central section (7) arranged between the first end section (5) and the second end section (6), the central section (7) extending parallel to a longitudinal axis (8) of the connector (4), wherein the first plate (2) has a first receiving (15) with a first receiving recess (16), the first receiving recess (16) extending from a top surface (9) of the plate towards a bottom surface (10) of the plate and to an edge (13) is open towards the first plate (2), wherein the second plate (3) has a second receptacle (17) with a second receiving recess (18), wherein the second receiving recess (18) extends from a plate top (11) towards a plate bottom (12) and to an edge (14) is open towards the second plate (3), wherein the first receptacle (15) has a rigid connecting element (19) which is arranged in the first receiving recess (16) and has a cross-section that deviates from the circular shape, wherein the first end section (5) of the connector (4) has a corresponding cross-section in order to be able to engage the first end section (5) with the connecting element (19) when the connector (4) is in an engagement position (22) with respect to the first receptacle (15), wherein the connector (4) in engagement with the connecting element (19) from the engagement position (22) to a second The limit angle of a first angle (21) is pivotable such that the first end section (5) is positively connected to the connecting element (19) between a first limit angle and the second limit angle, wherein the first angle (21) is enclosed by the longitudinal axis (8) of the connector (4) and a normal (20) to the top surface (9) of the first plate (2), wherein the second receptacle (17) has a guide (23) arranged in the second receiving recess (18) and having at least one guide profile (24), wherein the second end section (6) of the connector (4) has a movable locking mechanism (25) with a latch (26) in order to bring the bolt (26) into engagement with the at least one guide profile (24) by moving the locking mechanism (25), in particular in a positive-locking manner, and to bring the second end section (6) and the second receptacle (17) into a locked state (27), wherein in the locked state (27) the connector (4) is pivotable about a longitudinal axis (28) of the bolt (26) and is displaceable with the bolt (26) at least section by section along the guide (23).

2. System (1) according to claim 1, characterized in that the first receiving recess (16) and / or the second receiving recess (18) forms at least sectionally an opening through from the respective upper surface (9, 11) to the lower surface (10, 12) of the plate.

3. System (1) according to one of claims 1 to 2, characterized in that in the engagement position (22) the first angle (21) is, preferably in magnitude, less than or equal to the first limiting angle.

4. System (1) according to one of claims 1 to 3, characterized in that the first limiting angle lies in a range of 1° to 10°, preferably from 1° to 5°.

5. System (1) according to one of claims 1 to 4, characterized in that the second limiting angle is at least 90°, preferably at least 110°, particularly preferably at least 135°.

6. System (1) according to one of claims 1 to 5, characterized in that in the locked state (27) the connector (4) can be pivoted about the longitudinal axis (28) of the bolt (26) at least in a rotation angle range of -40° to 40°.

7. System (1) according to one of claims 1 to 6, characterized in that the connecting element (19) is formed at least partially as a round bar with a flattened side (29), preferably with two flattened sides (29) arranged opposite each other, wherein the first end section (5) has a substantially omega-shaped clear cross-section (30) which is open to the outside with a mouth (31) having a jaw opening (32), wherein the jaw opening (32) is smaller than a central opening diameter (33) of the clear cross-section (30).

8. System (1) according to claim 7, characterized in that the flattened side (29), preferably the two flattened sides (29), is / are parallel to the normal (20) to the top surface (9) of the first plate (2) and parallel to the edge (13) of the first plate (2), towards which edge (13) the first receiving recess (16) is open.

9. System (1) according to one of claims 7 to 8, characterized in that the connector (4) engages with the The connecting element (19) is pivotable about a longitudinal axis (34) of the connecting element (19) and about a perpendicular to the longitudinal axis (34) of the pivot axis (42) of connecting element (19), wherein preferably the central opening diameter (33) of the clear cross-section (3) extends over a thickness of the first final section (5) is varied such that the central The opening diameter (33) of the opposing outer surfaces of the first end section (5) decreases towards the inside.

10. System (1) according to one of claims 1 to 9, characterized in that the at least one guide profile (24) is formed by two opposing elongated holes, wherein in the locked state (27) the bolt (26) is arranged in the elongated holes with two opposing end sections.

11. System (1) according to one of claims 1 to 10, characterized in that the connector (4) between the first end section (5) and the middle section (7) has two kinks and / or bends, preferably substantially S-shaped, and / or that the connector (4) between the second end section (6) and the middle section (7) has two kinks and / or bends, preferably substantially S-shaped.

12. System (1) according to one of claims 1 to 11, characterized in that the connector (4) has a substantially U-shaped shape at least in the central section (7). has a cross-section.

13. System (1) according to one of claims 1 to 12, characterized in that the connector (4) is made of metal, preferably of steel, particularly preferably of stainless steel.

14. System (1) according to one of claims 1 to 13, characterized in that, viewed in the direction of the upper surface (9) of the first plate (2), the first The receiving recess (16) in the direction of the edge (13) towards which the first receiving recess (16) is open is widened at least in sections, in particular in a V-shape, and / or the second receiving recess (18) in the direction of the top surface (11) of the second plate (3) is widened at least in sections, in particular in a V-shape.

15. System (1) according to one of claims 1 to 14, characterized in that at least one first restraint element (35) is provided for fixed, at least section-wise arrangement in the first receiving recess (16) and / or that at least one second restraint element (36) is provided for fixed, at least section-wise arrangement in the second receiving recess (18).

16. System (1) according to one of claims 1 to 15, characterized in that the first receptacle (15) and / or the second receptacle (17) is / are made at least partially, preferably completely, of metal, preferably steel, particularly preferably stainless steel.

17. System (1) according to one of claims 1 to 16, characterized in that the first plate (2) has several first receptacles (15) and / or the second plate (3) has several second receptacles (17) , wherein several connectors (4) are provided. 18 System according to claim 17, characterized in that the first recordings (15) are located at edges (13) of different, preferably adjacent, particularly preferably all sides of the first plate (2) and / or that the second recordings (17) are arranged on edges (14) of different, preferably adjoining, particularly preferably all, sides of the second plate (3).

19. System (1) according to one of claims 1 to 18, characterized in that the first plate (2) and / or the second plate (3) is / are made of plastic or composite material, in particular layered composite material.

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