A lock arrangement for providing an eccentric connection between a first and a second object

Abstract

The disclosure relates to a lock arrangement (10) for providing an eccentric connection between at least a first object with at least a second object. The lock arrangement (10) comprising, a connection element (101) configured to be connectable to the at least first object, a corresponding structure (102) configured to be connectable to the at least second object, at least one force generating bias element (103) configured to apply a clamping force between the connection element (101) and the corresponding structure (102), and a locking element (104). The corresponding structure (102) comprises a guide feature, such as a groove (1021) or wedge surface (1042). The locking element (104) is configured to rotate within said guide feature to generate a relative displacement that compresses the bias element (103), thereby creating the clamping force. This arrangement ensures guided engagement and decouples the clamping force from the structural stiffness of the joined objects.

Description

[0001] A lock arrangement for providing an eccentric connection between a first and a second object

[0002] Technical field

[0003] The present disclosure relates to a lock arrangement for providing an eccentric connection between at least a first object with at least a second object. More specifically, the disclosure relates to a lock arrangement for providing an eccentric connection between at least a first object with at least a second object as defined in the introductory parts of the independent claims.

[0004] Background art

[0005] In the technical field of fastening systems, eccentric locking mechanisms are widely employed to connect objects to supporting structures and to connect objects to each other. These mechanisms operate by leveraging an eccentric motion, typically through a cam or pin, to create a secure connection. Such systems are valued for their simplicity and reliability. This makes them common in industries where quick connections are required, including automotive, aerospace, construction, and industrial assembly.

[0006] However, a significant limitation of conventional eccentric locking systems is their reliance on rigid mechanical interference to generate the locking pressure. While this is effective for steel- on-steel applications, such rigid mechanisms can cause surface damage, galling, or permanent yielding when applied to lightweight materials such as aluminium or magnesium. In these softer materials, the high contact stresses generated by a rigid cam can exceed the material's yield strength, leading to a loss of preload over time.

[0007] Furthermore, conventional designs often rely on the elasticity of the steel itself or high- precision machining to maintain tension. This reliance on steel is limiting in applications where weight reduction is critical. Additionally, in blind or concealed assemblies, conventional rotating pins are often prone to positional errors, leading to potential 'cam-out' or jamming before the lock is fully engaged.

[0008] There is thus a need for an improved locking arrangement that protects lightweight components while ensuring reliable installation and connection stability. Summary

[0009] It is an object of the present disclosure to mitigate, alleviate or eliminate one or more of the above-identified deficiencies and disadvantages in the prior art and solve at least the above mentioned problem.

[0010] According to a first aspect of the disclosure there is provided a lock arrangement for providing an eccentric connection between at least a first object with at least a second object. The lock arrangement comprising a connection element configured to be connectable to the at least first object and a corresponding structure configured to be connectable to the at least second object. The lock arrangement further comprising a force generating bias element configured to apply a clamping force. The corresponding structure may comprise a guide feature, such as a groove or wedge surface. The locking element is configured to rotate within this guide feature. This rotation generates a controlled displacement that compresses the bias element, thereby creating the clamping force. This arrangement ensures that the clamping load is defined by the compliance of the bias element rather than the rigidity of the joined objects.

[0011] The disclosed invention generates a clamping force with minimal input effort, providing a tight, secure connection without requiring extensive manual adjustment. The rotational movement of the eccentric component creates a mechanical advantage that is especially beneficial in large-scale assembly operations where speed and consistency are critical.

[0012] Unlike conventional rotating pins that may suffer from positional errors, the present invention utilizes a guide feature to ensure positive engagement. This allows the system to be adapted for concealed mounting or spaces that are not directly accessible, offering solutions for aesthetic or practical considerations.

[0013] According to some embodiments, the locking element has a non-uniform configuration to exhibit a variation in its transverse dimension at specific locations in response to a relative displacement or operational motion.

[0014] The non-uniform configuration of the locking element allows it to adapt dynamically during use which facilitates engagement between the connection element and the corresponding structure. By varying its transverse dimension at specific points, the locking element can generate an eccentric motion that optimises the clamping force and lateral engagement. This adaptability improves the locking mechanism's ability to accommodate variations in assembly conditions, such as minor misalignments or differences in material tolerances. The variation in transverse dimension contributes to efficient energy distribution during the locking process. As the locking element moves through its operational cycle, its non-uniform shape ensures that the generated force is applied in a controlled manner. The design minimises the risk of overloading the bias element or other parts of the system, preserving the structure of the lock arrangement and preventing potential damage to the connected objects.

[0015] According to some embodiments, the corresponding structure comprises a groove and the locking element is configured to interact with the bias element in the groove. This feature directs the force generated by the bias element, ensuring precise and predictable lateral engagement between the connection element and the corresponding structure. The groove serves as a defined pathway which helps minimising misalignment and improving the stability and reliability of the connection. This configuration improves force distribution and ensures that the clamping force is applied efficiently and reduces the risk of damage to the connected objects. The groove also complements the non-uniform design of the locking element allowing the system to achieve smoother and more controlled engagement or disengagement.

[0016] According to some embodiments, the non-uniform locking element is a lockpin configured to interact with the bias element to create a clamping force when rotated. This configuration builds on the previously established principles of eccentric motion and controlled force application, adding precision and functional versatility to the lock arrangement. The lockpin's non-uniform geometry allows it to generate an eccentric motion during rotation, gradually increasing or decreasing the clamping force as it interacts with the bias element. This rotational mechanism provides a straightforward yet effective method for achieving a secure connection as the lockpin's movement is predictable and easy to control. By translating rotational input into lateral engagement and clamping force, the lockpin simplifies the operation of the locking system, making it user-friendly and efficient in assembly or disassembly processes.

[0017] According to some embodiments, the non-uniform lockpin has an angled shank. An angled shank offers controlled force application during rotation while being user-friendly and easy to operate. The angled design improves accessibility, making it straightforward to reach and manipulate, even in confined spaces. This facilitates smoother engagement, supports varied assembly conditions, and contributes to a reliable and stable connection, accommodating diverse operational needs.

[0018] According to some embodiments, the connection element and / or the corresponding structure includes a wedge configured to interact with the bias element to generate a clamping force between the connection element and the corresponding structure. This interaction secures the connection by generating a transverse dimension displacement via the wedge, achieving reliable locking between the two components.

[0019] The wedge introduces a mechanism for creating clamping force through the relative movement of the connection element and the corresponding structure. As the components move towards each other, the wedge interacts with the bias element, causing a controlled transverse displacement that results in stable engagement. This design allows for precise and consistent locking while accommodating diverse configurations.

[0020] According to some embodiments, the connection element is a vertically extending shaft, and the corresponding structure is a hollow profile configured to slide over the shaft. The locking element interacts with at least one coil spring to generate a clamping force, securing the hollow profile to the shaft when the locking element is rotated. This configuration facilitates precise and stable engagement between the components.

[0021] The vertically extending shaft and the hollow profile are designed for smooth interaction, allowing the profile to slide over the shaft with minimal resistance. This arrangement simplifies alignment vertically. The design is already locked in an x and y direction and is by clamping also locked in the z direction. The interaction between the locking element and the coil spring or springs provides a reliable clamping mechanism. As the locking element is rotated, it compresses the coil spring, which applies a consistent force to secure the hollow profile to the shaft. This mechanism accommodates minor variances in alignment or tolerances, creating a stable and durable connection. The use of a coil spring ensures that the clamping force is maintained under operational stresses such as vibration or shifting loads.

[0022] This vertical shaft and hollow profile design, combined with the rotational locking mechanism and spring-based clamping, is compact and efficient. The configuration is particularly well- suited for applications with limited horizontal space or requiring concealed connections.

[0023] According to some embodiments, the connection element includes a groove configured to guide and maintain aligned motion between the connection element and the corresponding structure. This feature provides precise and stable alignment during engagement and operation, ensuring proper interaction between the components. The groove serves as a pathway, directing the movement of the connection element and minimising the risk of misalignment. This guided motion simplifies assembly by reducing the need for manual corrections, particularly in scenarios where access is limited or where consistent alignment is critical. The design ensures that the connection element aligns properly with the corresponding structure, supporting reliable clamping and force distribution.

[0024] According to another aspect of the disclosed invention, it includes a locking arrangement system comprising a plurality of lock arrangements organised serially to cooperate with a single locking element for engagement at multiple locking points. The use of multiple lock arrangements serially positioned is designed to engage at several locking points simultaneously. This configuration adds functionality to the lock arrangement by enabling secure, multi-point fastening while accommodating interlocking of parts across several points or locking of different parts over an extended area.

[0025] By arranging multiple lock systems in series, the design allows distributed engagement that reduces stress on individual locking points. This distribution enhances structural stability and durability, making it suitable for securing larger or more complex assemblies.

[0026] According to some embodiments, the locking arrangement system comprises wedges integrated into the connection element and / or the corresponding structure, arranged in a series to secure the first and second objects at several securing locations. This configuration provides distributed engagement and increased stability by using multiple wedge structures to enhance the overall functionality of the lock arrangement.

[0027] The integration of wedges into either the connection element or the corresponding structure enables secure engagement at multiple distinct points. Each wedge interacts with the bias element to generate clamping force and lateral engagement at its respective securing location. This multi-point engagement reduces reliance on a single connection point, evenly distributing stress across the assembly and improving overall stability.

[0028] According to some embodiments, each of the multiple lock arrangements comprises a connection element configured to be selectively connectable to different objects, such that different connection elements along the substantially straight line can connect to different objects at multiple locking points. This design allows for the simultaneous connection of separate components, such as two chairs secured to a shared framework, or other applications where distinct parts must align along the same series of lock arrangements. The ability to connect to different structures provides flexibility in applications requiring modular or multi-component systems. For instance, in a transportation setting, multiple seats could be secured along a rail system, with each lock arrangement engaging independently to accommodate variations in positioning or spacing. Similarly, in industrial or architectural contexts, distinct panels or structural elements can be fastened to a common alignment while maintaining individual connections.

[0029] According to some embodiments the lock arrangement comprises lightweight metallic materials, such as aluminium and magnesium. The choice of materials offers several benefits, particularly in applications prioritising weight reduction without compromising structural integrity.

[0030] According to some embodiments, a visual indicator is included to show when the lock is engaged. This feature enhances usability by providing a clear and immediate confirmation of the lock's status, reducing the risk of improper engagement during assembly or operation.

[0031] According to some embodiments, the bias element is a coil spring. This configuration provides a reliable and efficient method for generating the clamping force required for the lock arrangement.

[0032] According to some embodiments, the connection element includes a guide feature to facilitate alignment with the corresponding structure. This feature could take forms such as a protrusion, groove, chamfer, or tapered edge, to ensures proper positioning during assembly and activity and reduces the risk of misalignment in the locking process. By guiding the connection element into the correct orientation, it minimises the need for precise adjustments, particularly in concealed or confined spaces.

[0033] The present disclosure will become apparent from the detailed description given below. The detailed description and specific examples disclose preferred embodiments of the disclosure by way of illustration only. Those skilled in the art understand from guidance in the detailed description that changes and modifications may be made within the scope of the disclosure.

[0034] Hence, it is to be understood that the herein disclosed disclosure is not limited to the particular component parts of the device described or steps of the methods described since such device and method may vary. It is also to be understood that the terminology used herein is for purpose of describing particular embodiments only and is not intended to be limiting. It should be noted that, as used in the specification and the appended claim, the articles "a", "an", "the", and "said" are intended to mean that there are one or more of the elements unless the context explicitly dictates otherwise. Thus, for example, reference to "a unit" or "the unit" may include several devices, and the like. Furthermore, the words "comprising", "including", "containing" and similar wordings does not exclude other elements or steps.

[0035] Brief of the

[0036] The above objects, as well as additional objects, features and advantages of the present disclosure, will be more fully appreciated by reference to the following illustrative and non-limiting detailed description of example embodiments of the present disclosure, when taken in conjunction with the accompanying drawings.

[0037] Figure 1 illustrates the lock arrangement for providing an eccentric connection between a first and a second object according to an example of the present invention.

[0038] Figure 2 illustrates one example of the present invention of a locking arrangement system for providing an eccentric connection between a first and a second object.

[0039] Figure 3 illustrates the lock arrangement for providing an eccentric connection between a first and a second object according to an example of the present invention.

[0040] Figure 4 illustrates one example of the present invention of a locking arrangement system for providing an eccentric connection between a first and a second object.

[0041] Figure 5 illustrates the lock arrangement for providing an eccentric connection between a first and a second object according to an example of the present invention.

[0042] Detailed

[0043] The present disclosure will now be described with reference to the accompanying drawings, in which preferred example embodiments of the disclosure are shown. The disclosure may, however, be embodied in other forms and should not be construed as limited to the herein disclosed embodiments. The disclosed embodiments are provided to fully convey the scope of the disclosure to the skilled person.

[0044] Figure la-f illustrates a first aspect of the disclosed invention, showing an example of a lock arrangement 10 for providing an eccentric connection between a first object and a second object. The series of figures a-f describe the components, their configurations, and how they interact to achieve the locking mechanism. Generally, the lock arrangement of figures la-lf comprises a connection element 101 configured to be connectable to the at least first object, a corresponding structure 102 configured to be connectable to the at least second object, at least one force generating bias element 103 configured to apply a clamping force between the connection element 101 and the corresponding structure 102, and a locking element 104. The locking element 104 is configured to interact with the bias element 103 achieving an eccentric locking by causing lateral engagement between the connection element 101 and the corresponding structure 102 to ensure a secure locking between the connection element 101 and the corresponding structure 102.

[0045] Figure la shows the connection element 101, which in this example is a square profile 1011 configured to receive an inner component 1012 for example as depicted in Figure lb. The connection element 101 is designed to interface securely with the bias element 103. The square profile 1011 in this example is versatile and can be adapted to attach to various objects, such as the chassis of a truck cabin or the floor structure of an aeroplane. While the profile 1011 is square in this example, it could also be configured in other shapes, such as rectangular, circular, or custom profiles, depending on the application requirements.

[0046] Figure lb depicts the inner component 1012 of the connection element 101 of the first aspect of the disclosed invention. The inner component 1012 comprises the bias element 103, which is positioned at one end of the inner component 1012 and inside of the inner component 1012. The bias element 103 could then be compared to as creating a springboard feature of the connecting element 101. In the illustrated example, the bias element 103 is a coil spring that is fitted inside of a hole in the inner component 1012. The inner component 1012, comprising the bias element 103, is designed to fit into the square profile 1011 depicted in figure la. The inner component 1012 is fixated inside of the square profile 1011 using two bolts 1013, 1014. The bias element 103 applies a spring force between the square profile 1011 and the inner component 1012. In one example, a first bolt 1013 is stationary over the square profile 1011, while a second bolt 1014, arranged closest to the bias element 103 has space, over the square profile 1011, to move in a limited up and down direction. This would allow for dynamic movement of the bias element 103 during operation, hence also the inner component 1012 in reference to the square profile 1011.

[0047] Figure lc depicts the locking element 104, which in this first aspect of the invention is an angled pin. The angled pin has a non-uniform configuration to exhibit a variation in its transverse dimension at specific locations in response to a relative displacement or operational motion. Transverse dimension is to be understood as that the cross section of the pin is not rounded, but has different thickness, as seen in the figure lc. This angled pin is stable and user-friendly, designed for easy handling during assembly and operation due to that it is easy to grip and turn. Turning the angled pin would activate the excentric locking mechanism. The geometry facilitates secure engagement with the corresponding structure 102 while interacting with the bias element 103 to produce the clamping force.

[0048] Figure Id illustrates the corresponding structure 102. The corresponding structure 102 is a complementary component to the connection element 101. In the illustrated example of figure Id, the corresponding structure 102 is a square profile. However, it could also be configured in other shapes, such as rectangular, circular, or custom profiles, depending on the application requirements. The corresponding structure 102 comprises two V-shaped cutouts 1022, 1023 on opposite ends of the corresponding structure 102. The first V-shaped cutout

[0049] 1022 is situated on the rear end of the corresponding structure 102 and is designed to receive the stationary first bolt 1013 of the connection element 101. The second V-shaped cutout

[0050] 1023 situated on the other side of the corresponding structure 102 is configured to receive the second bolt 1014 of the connection element 101. This configuration allows the corresponding structure 102 to slide into place and align correctly with the connection element.

[0051] Figure le shows an internal part of the corresponding structure 102, featuring a groove 1021. The groove 1021 is specifically configured to receive the locking element 104. When the locking element 104 is inserted into the groove 1021 and rotated, its non-uniform shape interacts with the groove 1021 and applies pressure, securing the corresponding structure 102 to the connection element 101. The corresponding structure 102 is designed to attach to the second object, which could be a component such as a truck seat, an aircraft seat, or other structural elements.

[0052] Figure If illustrates the assembly of the parts la-e, and operation of the lock arrangement 10, showing all components together. The connection element 101 receives the corresponding structure 102 by aligning the V-shaped cutout of the corresponding structure 102 with the first bolt 1013 of the connection element 101. As the second V-shaped cutout 1022 is brought into position, the locking element 104 is inserted into the groove 1021 of the corresponding structure 102. Rotating the locking element 10490 degrees, the locking element 104 changes thickness in regard to the groove 1021 due to its non-uniformity. This applies pressure to the bias element 103 through the corresponding structure 102. This interaction generates a clamping force that indirectly locks the first object and the second object securely together. The described configuration of the lock arrangement 10 ensures stability, ease of assembly, and adaptability for various applications requiring secure connections between two objects.

[0053] The lock arrangement 10 provides a mechanism for achieving an eccentric connection between at least a first object and a second object. An eccentric connection refers to a fastening mechanism in which a rotational or off-centre motion is utilised to generate a secure locking force. This type of connection allows for mechanical leverage and precise control over the engagement between the connected parts to make the lock more secure and generating a more efficient fastening even in challenging or constrained environments. The first and second objects may represent virtually any components or structures requiring a secure connection. For example, in a vehicle application, the first object could be a seat frame, and the second object a vehicle chassis. In another context, the first object could be a panel, and the second object a structural frame in an aircraft or architectural assembly. The versatility of the design enables it to be applied across industries, accommodating a wide range of materials and configurations.

[0054] Central to the lock arrangement 10 is the force-generating bias element 103, which in this context refers to a component that produces a continuous clamping force. This clamping force acts between at least two parts, ensuring they remain securely connected while locking the surrounding structure. Examples of such bias elements 103 include springs with preloads, elastic components, magnets, or other devices designed to maintain consistent pressure between the connection element and the corresponding structure. This constant force is critical for generating the friction necessary to secure the connection and stabilise the surrounding structure, ensuring reliable locking under various conditions. The clamping force works by pressing the connection element 101 firmly against the corresponding structure 102. This pressure ensures close contact between the two, thereby reducing relative movement and enhancing the stability of the connection.

[0055] The locking element 104 interacts with the bias element 103 to achieve eccentric locking, resulting in lateral engagement between the connection element 101 and the corresponding structure 102. Lateral engagement, in this context refers to a locking action that occurs in a direction perpendicular to the primary axis of the connection. This engagement ensures that the components are not only pressed together but are also interlocked in such a way that they resist separation under forces acting along or across the plane of connection. This dual action locking mechanism combines the advantages of clamping force with secure mechanical interlocking. By integrating these features, the lock arrangement 10 achieves a connection that is robust and efficient. The combination of eccentric motion and lateral engagement makes the fastening resilient to compensate for slight misalignments during assembly, reducing the precision required and simplifying installation processes. This makes it particularly suitable for concealed or limited-access applications, where direct alignment or visibility may be restricted. The use of a bias element 103 to generate force enables the lock arrangement 10 to function effectively with a variety of materials, including lightweight options such as aluminium, magnesium, composite among others. This extends the applicability of the invention to industries like aerospace, where weight reduction is a priority, without compromising the reliability of the connection. Furthermore, the reliance on mechanical principles such as eccentric locking and lateral engagement ensures that the connection remains strong and durable in scenarios involving repeated assembly and disassembly or exposure to variable operating conditions.

[0056] The combination of the bias element 103 and the locking element 104 enables the lock arrangement 10 to apply a clamping force that is sufficient to securely hold the first and second objects together without subjecting the components to excessive stress. The bias element 103 generates a controlled and consistent force, while the locking element 104 effectively translates this force into lateral engagement. This ensures that the system achieves the required level of stability and security without overloading the materials involved.

[0057] By distributing the clamping force through the bias element 103 and converting it into a secure lateral engagement via the locking element 104, the design minimises the risk of excessive yielding in the connection element 101 or the corresponding structure 102. This is particularly beneficial when the components are made from materials such as aluminium or other lightweight materials that may have lower yield strength compared to steel. The arrangement ensures that the locking force is strong enough to maintain the integrity of the connection under operational loads while preventing damage such as cracking or deformation of the parts.

[0058] Figure 2 illustrates additional details on the first aspect of the disclosed invention, building upon the configurations shown in Figure la-f.

[0059] Figure 2a depicts the lock arrangement 10 in an unlocked state. In this configuration, the locking element 104 is positioned such that its smaller cross-sectional area is oriented away from the bias element 103 housed within the inner component 1012. This orientation prevents the bias element 103 from being compressed , leaving the connection between the connection element 101 and the corresponding structure 102 unengaged. The figure 2a highlights the non-clamping state of the locking mechanism, showing how the system remains in an idle position without applying force to secure the two objects.

[0060] Figure 2b illustrates the lock arrangement 10 in its locked state. The locking element 104 (angled pin) has been rotated 90 degrees around its own axis. This rotation brings the larger cross-sectional area of the angled pin into contact with the bolt of the connection element 101, which in turn compresses the bias element 103 inside the connection element. The compressed bias element 103 generates a clamping force that firmly secures the connection element 101 to the corresponding structure 102. This figure demonstrates the operational transition of the locking mechanism, showcasing how the eccentric motion of the locking element transforms into a stable and reliable clamping force.

[0061] Figure 2c illustrates an example of the lock arrangement system with two lock arrangements 10 being used simultaneously to secure two objects at different locking points. This figure demonstrates the ability to accommodate multi-point fastening, showing how multiple locking arrangements can function together to connect two objects securely. The distributed engagement across the locking points provides additional stability, ensuring that the objects remain firmly attached even under operational stresses. This configuration is particularly advantageous in applications requiring alignment or structural integrity over a larger area, such as seating systems, modular assemblies, or structural reinforcements.

[0062] The non-uniformity along the extension of the locking element 104 allows the system to engage or disengage more smoothly. For example, during assembly, the gradual change in the transverse dimension can reduce the effort required to achieve a secure connection. Similarly, during disassembly, the feature allows for a controlled release of the clamping force, making the system user-friendly and reducing wear on the components over repeated use.

[0063] The combination of the non-uniform locking element 104 with the bias element 103 provides additional benefits. The controlled variation in transverse dimension works in tandem with the force generated by the bias element to ensure that the clamping force remains within an optimal range. This prevents excessive yielding of the materials, even under dynamic loads, further improving the durability and reliability of the lock arrangement 10. The integration of these features allows for secure connections without the need for high manufacturing precision, reducing production costs and increasing the versatility of the system. The ability to adjust the locking force dynamically through the locking element 104 non- uniform design also extends the range of applications for the lock arrangement 10. For instance, it can be particularly advantageous in environments with fluctuating operational loads or where lightweight materials like aluminium are used. The non-uniform configuration ensures that the system can adapt to these conditions while maintaining stable and secure connections.

[0064] The locking element 104 can be selected in different lengths, depending on the positioning of the lock arrangement 10. This is particularly useful when the locking element 104 needs to reach multiple lock arrangements or accommodate varying distances. This adaptability allows the locking mechanism to adjust to objects of different thicknesses or separation distances. The flexibility ensures seamless integration into a wide range of applications, from compact setups to larger assemblies. Despite these variations, the locking mechanism maintains consistent functionality and reliable performance

[0065] This feature integrates seamlessly with the groove 1021 in the corresponding structure 102 previously described. The groove 1021 serves as a guide for the locking element 104 rotational movement, further stabilising the system and directing the generated force effectively. The combination of the locking element 104 geometry and the groove 1021 ensures that the force is applied evenly, reducing the potential for material stress or deformation, particularly in lightweight applications where aluminium or similar materials are used.

[0066] Figure 3 illustrates a second aspect of the disclosed invention, where the connection element 101 and the corresponding structure 102 are housed inside one of the objects being locked. The locking mechanism employs a wedge 1042 to generate a clamping force, achieving secure locking through transverse dimension displacement.

[0067] In embodiments comprising a wedge surface 1042, the wedge surface 1042 may form or define a guide feature for the locking element 104, for example a cam track, recess, or profiled contact surface configured to receive and constrain the locking element 104 during rotation.

[0068] In such embodiments, rotation of the locking element 104 along the guide feature causes a relative displacement between the connection element (101) and the corresponding structure (102).

[0069] Figure 3a depicts two states of the lock arrangement 10 in this second aspect of the invention. The first stage illustrates the connection element 101 and the corresponding structure 102 in a fully locked configuration. The connection is achieved via wedge structures 1042 integrated into the shapes of both components. As shown in Figure 3, the rotation of the locking element 104 exerts a lateral force against the aperture of the corresponding structure 102. This force drives the corresponding structure 102 axially relative to the connection element 101. This axial movement forces the wedge surface 1042 to slide against its mating surface, thereby generating a transverse displacement that compresses the bias element 103, such as a leaf spring. Thus, the rotational input is converted into axial translation, which is then converted into a clamping force via the wedge and spring. The figure also highlights the bias element 103, which in this aspect is represented by a leaf spring integrated into the connection element 101. The bias element 103 works in conjunction with the wedge 1042, further stabilising the connection. When the locking holes of the connection element 101 and the corresponding structure 102 align, the locking element 104 is inserted into the meeting holes. The non-uniform locking element 104, is then rotated around its axis. This rotation increases the clamping force by compressing the leaf spring bias element 103 and securing the connection between the two parts.

[0070] The second part of the figure 3a shows the lock arrangement 10 in a disassembled configuration. The individual components, the connection element 101, the corresponding structure 102, the locking element 104, the wedges 1042, and the bias element 103, are depicted separately.

[0071] Figure 3b provides an application focused view of the lock arrangement 10 within one of the objects being locked. In this embodiment, the second object houses the locking arrangements 10, with two lock arrangements positioned at different points within the object. This setup allows for multi-point locking to secure two objects together or to connect different objects to the same second object. The visible part of the connection element 101 extends outward from the locking arrangement and is designed to attach to the first object being locked. This attachment can be achieved using welding, fasteners, or other securing methods. The hollow interior of the second object accommodates the corresponding structure 102, which slides into alignment with the connection element 101 during assembly. The wedge 1042 integrated into both the connection element 101 and the corresponding structure 102 interacts with the bias element 103 to generate the necessary clamping force. The figure 3b also shows the path of the locking element 104 as it is inserted into the locking holes of the second object and further into the aligned holes of the connection element 101 and the corresponding structure 102. Once inserted, the rotation of the locking element 104 applies clamping force by compressing the bias element 103 and engaging of the wedge 1042. This transverse dimension displacement creates a strong and stable lock between the two components. The wedge 1042 can take various forms based on the application requirements. It could be a simple angled surface designed to slide against the bias element 103 or a more intricate geometry with grooves 1021 or ridges to optimise engagement. Depending on the design, the wedge 1042 may be integrated into the connection element 101 or the corresponding structure 102. For compact applications, the wedge 1042 could be a narrow incline embedded within one of the components, while in heavy-duty scenarios, a reinforced or broader wedge might be used to handle greater forces.

[0072] The bias element 103, which works in conjunction with the wedge 1042 to generate clamping force, can be positioned in several locations. For example, a coil spring might be situated beneath the wedge 1042, compressing as the connection element 101 and corresponding structure 102 move closer together. This arrangement provides consistent force while maintaining stability under operational stresses. Alternatively, the bias element 103 could be positioned between the connection element 101 and the wedge 1042 itself, so that the movement of the connection element 101 engages the bias element 103, which in turn drives the wedge 1042 to achieve the clamping action. In another configuration, the bias element 103 could be placed on the opposite side of the wedge 1042, pressing against an internal surface of the corresponding structure 102 to channel force effectively. For compact setups, the bias element 103 might be integrated into the base of the corresponding structure 102 to reduce the system's footprint while maintaining its functionality. The interaction between the wedge 1042 and the bias element 103 ensures controlled and gradual force application, compensating for minor alignment variances during assembly and reducing manufacturing precision requirements.

[0073] By allowing customisation of the wedge 1042 design and strategic placement of the bias element 103, the system provides reliable and adaptable performance across a wide range of scenarios. Whether used in lightweight applications requiring precision or in high-stress environments demanding robust engagement, this embodiment ensures the clamping force is effectively generated and securely maintained, delivering a cohesive and efficient locking solution.

[0074] Figure 4 illustrates a third aspect of the disclosed invention, showcasing a vertically extending locking arrangement 10. This aspect features a connection element 101, represented as a vertically extending shaft 1011, and a corresponding structure 102, depicted as a hollow profile 1021 configured to slide over the shaft 1011. The locking mechanism employs a non-uniform locking element 104 to interact with a bias element 103, depicted as a coil spring 1031, generating a clamping force to secure the hollow profile 1021 to the shaft 1011.

[0075] The locking element 104 is situated in a hole at the top of the shaft 1011. When rotated around its axis, the non-uniform geometry of the locking element 104 creates a transverse clamping force by compressing the bias element 103 and pressing the hollow profile 1021 against a level on the shaft 1011. This configuration achieves a secure and stable connection, enabling the first object to attach to the shaft 1011 and the second object to connect to the hollow profile 1021.

[0076] Figure 4a illustrates one example of this third aspect. In this configuration, the coil spring 1031 is positioned beneath the hollow profile 1021. The rotation of the locking element 104 compresses the coil spring 1031 against the bottom of the hollow profile 1021, creating a clamping force. This configuration ensures that the hollow profile 1021 is securely fixed in place relative to the shaft 1011.

[0077] Figure 4b depicts a second example of the third aspect. In this embodiment, the coil spring 1031 is located above the hollow profile 1021. The locking element 104, when rotated, presses down onto the coil spring 1031, which in turn applies a clamping force onto the hollow profile 1021. This arrangement allows for a similar locking effect, but with the bias element situated differently to accommodate specific design requirements or operational conditions.

[0078] Figure 4c demonstrates a third example of the third aspect. In this configuration, two coil springs 1031a and 1031b are used, positioned both above and below the hollow profile 1021. The locking element 104 interacts with both springs simultaneously when rotated, compressing them to create an evenly distributed clamping force on the hollow profile 1021.

[0079] These figures illustrate the flexibility and adaptability of the third aspect of the disclosed invention. By varying the placement and number of bias elements 103, the locking arrangement 10 can be customised to meet different operational demands

[0080] Figure 5 illustrates an embodiment of the disclosed invention, showing the lock arrangements 10 organised into a locking arrangement system 30. This system comprises a plurality of lock arrangements 10 arranged serially and configured to cooperate with a single locking element 104 to achieve secure engagement at multiple locking points along a substantially straight line. Figure 5a provides an overview of a locking arrangement system 30, illustrating the connection element 101 containing several corresponding structures 102 positioned in series along its length. The locking element 104, depicted as a long locking pin 1041, extends through all the corresponding structures 102. The locking pin 1041 features a non-uniform shape, enabling it to interact with the grooves 1021 in each corresponding structure 102. When the locking pin 1041 is rotated around its axis, its non-uniform geometry engages the grooves 1021, generating clamping forces across all locking points simultaneously. The corresponding structure 102 in this embodiment includes a bias element 103, represented as a spring, located beneath each corresponding structure 102. The bias element 103 applies upward pressure, creating a clamping force between the corresponding structure 102 and the connection element 101 when the locking pin 1041 is rotated. This clamping force ensures secure engagement at every locking point along the series. These configurations allow the locking arrangement system 30 to secure either a single object at multiple points or multiple objects to a single structure. For example, the first object can be attached to the connection element 101, while different second objects can be selectively connected to the corresponding structures 102 along the serial arrangement. The use of a single locking pin 1041 to engage multiple lock arrangements 10 simplifies the locking process, reducing assembly time and improving efficiency.

[0081] Figure 5b provides a stripped view of the locking arrangement system 30, with the connection element 101 removed for clarity. This view reveals the corresponding structures 102 arranged along the series and highlights the pathway of the locking pin 1041 as it extends through the grooves 1021 of each corresponding structure 102. The groove 1021 in each corresponding structure 102 guides the movement of the locking pin 1041. The figure also shows how the bias element 103, here a leaf spring, interacts with each corresponding structure 102. As the locking pin 1041 rotates within the grooves 1021, the bias element 103 applies a clamping force, securing the connection between the connection element 101 and the corresponding structures 102. This modular configuration ensures that each locking arrangement 10 operates cohesively within the system, maintaining uniform engagement along the entire series. The system allows for secure engagement at multiple locking points along a straight line, suitable for applications requiring distributed fastening. Each connection element 101 can connect to different objects 20, enabling flexibility in securing multiple components to a single structure or interlocking two objects at several points. The system's 30 design enables concealed locking mechanisms, ideal for applications requiring unobtrusive fastening solutions. The use of a single locking pin 1041 to activate all locking points reduces assembly complexity and ensures consistent clamping across the series. This aspect of the invention provides a robust and versatile solution for applications requiring distributed or modular locking systems. The integration of wedges 1042 into the connection element 101 and / or the corresponding structures 102 enhances the adaptability of the locking arrangement system 30, allowing it to secure objects efficiently across multiple points while maintaining a compact and streamlined design.

[0082] By arranging multiple lock systems in series, the design allows distributed engagement that reduces stress on individual locking points. For instance, panels, elongated components, or modular structures can be interlocked securely across multiple points, ensuring a uniform and stable connection across a greater surface or length. The ability to lock parts over a longer area provides additional adaptability. For example, in applications such as framing systems, structural reinforcements, or large surface assemblies, the serial placement of lock arrangements ensures that all sections of the structure remain uniformly engaged. This feature is particularly advantageous in scenarios where multiple parts need to align and interact seamlessly. The cooperative engagement of these lock arrangements 10 through a single locking element 104 reduces assembly time and effort while maintaining consistency and reliability in the connection. Additionally, the configuration compensates for minor alignment variances across the locking points, improving the system's adaptability during installation.

[0083] This serial arrangement also supports concealed mounting, where lock arrangements 10 can be aligned along hidden edges or surfaces to provide a secure yet visually unobtrusive connection. In heavy-duty applications, the multi-point locking design increases the loadbearing capacity of the system by evenly distributing forces across all engaged points. By integrating the fundamental features of the lock arrangement 10, including the clamping force generated by the bias element 103, the lateral engagement of the locking element 104, and the flexibility of the wedge 1042 structure or the lockpin arrangement, the serial placement of lock systems 30 provides a robust and versatile solution. The ability to interlock parts at multiple points or secure components over a longer area significantly expands the system's applicability across various operational needs and structural configurations.

[0084] The serially arranged locking elements can be configured to connect the at least first object to the at least second object. This arrangement allows the multiple locking points to work collectively, creating a more uniform and secure engagement between the objects. By distributing the connection forces across several points, the objects are held together more effectively, reducing the risk of movement or misalignment and improving the overall stability and integrity of the connection.

[0085] The serial arrangement 30 of wedges 1042 makes the system particularly effective for securing larger or more complex assemblies, such as elongated components or panel-like structures, where a single locking point might not maintain alignment or structural integrity. For example, in structural frames or machinery housings, this configuration stabilises connections under operational loads or environmental stresses. By integrating wedges 1042 into the connecting element 101 and / or the corresponding structure 102, the locking arrangement 10 retains a compact and efficient design. This eliminates the need for additional components or significant structural modifications, streamlining manufacturing and assembly processes. The serial alignment of the wedges 1042 ensures coordinated operation across all securing locations, delivering consistent and reliable engagement throughout the system. The interaction between the wedges 1042 and the bias element 103 introduces adaptability to the system. Each wedge 1042 independently generates its clamping force as the connection element 101 and corresponding structure 102 move, allowing the arrangement to adjust to slight variances in alignment or material tolerances. This flexibility supports reliable performance across diverse applications, particularly those requiring high load-bearing capacity or extensive coverage, such as automotive chassis, aerospace panels, or industrial frameworks.

[0086] The arrangement of lock systems 30 along a straight line maintains uniform alignment across the series, ensuring that each connected structure is positioned accurately relative to the others. This configuration can reduce assembly complexity by enabling independent connections at multiple points without requiring separate fastening mechanisms for each structure. The distribution of forces across the line of locking points also improves stability and reduces stress concentrations within the overall assembly. By enabling the connection of different structures within the same locking system 30, this embodiment supports versatile applications, facilitating the assembly of modular systems or components requiring independent yet aligned connections. It offers efficient and reliable solutions for diverse use cases, from seating arrangements to structural frameworks.

[0087] The use of lightweight metals reduces the overall mass of the lock arrangement 10, making it suitable for industries where weight is a critical factor, such as aerospace, automotive, or portable equipment manufacturing. Aluminium and magnesium are known for their high strength-to-weight ratios, allowing the lock arrangement to maintain durability and performance under operational stresses while minimising its impact on the total weight of the assembly. This locking arrangement 10 maintains compatibility with the other features of the lock arrangement 10, including the bias element 103 and locking element 104, while providing a weight-efficient and corrosion-resistant solution. It broadens the range of applications for the lock arrangement 10, particularly in fields requiring high performance and reduced weight.

[0088] Other materials, such as polymeric materials or composites, may also be used in the disclosed invention. Polymeric materials offer cost efficiency, chemical resistance, and lightweight properties, while composites provide strength and durability for demanding applications. These material options allow the lock arrangement 10 to adapt to various operational needs and environments while maintaining its functionality.

[0089] The visual indicator could take various forms, such as a colour-coded marker, a mechanical flag, or a line that becomes visible when the locking mechanism is in the engaged position. For example, a small window in the corresponding structure might reveal a coloured tab that aligns when the lock is fully engaged. This design simplifies verification during installation, particularly in complex or concealed setups where physical inspection of the locking components may be challenging. By providing real-time feedback, the visual indicator helps ensure that the locking mechanism is properly secured before use, reducing the likelihood of operational failures caused by incomplete engagement. This is particularly useful in applications requiring frequent adjustments or where multiple locks must be engaged simultaneously, such as modular systems or multi-point connections.

[0090] In some examples the bias element 103 is a coil spring 1031. A coil spring delivers controlled and uniform force during engagement, maintaining stability even under operational stresses such as vibration or shifting loads. Its ability to adapt to minor variances in alignment or tolerances ensures consistent and secure connections, making it suitable for dynamic or multi-point applications. While a coil spring is effective, the bias element 103 could also be implemented using alternative components depending on the application's requirements. For example, an elastomeric material could be used for its resilience and damping properties. Similarly, gas springs, leaf springs or torsion springs might be chosen for applications requiring specific force profiles or compact designs. These alternatives provide flexibility, allowing the lock arrangement 10 to be tailored to different operational needs or design constraints.

[0091] The guide feature, such asa groove 1021, could enhance the interaction between other components by ensuring consistent alignment at the intended contact points. By improving alignment and reducing wear during activity, the guide feature contributes to the durability and efficiency of the system. This addition reinforces the lock arrangement 10 adaptability to a variety of applications to secure and consistent connections across diverse operational scenarios.

[0092] The person skilled in the art realises that the present disclosure is not limited to the preferred embodiments described above. The person skilled in the art further realises that modifications and variations are possible within the scope of the appended claims. Additionally, variations to the disclosed embodiments can be understood and effected by the skilled person in practicing the claimed disclosure, from a study of the drawings, the disclosure, and the appended claims.

Claims

CLAIMS1. A lock arrangement (10) for providing an eccentric connection between at least a first object with at least a second object, comprising: a connection element (101) configured to be connectable to the at least first object, a corresponding structure (102) configured to be connectable to the at least second object, at least one force generating bias element (103) configured to apply a clamping force between the connection element (101) and the corresponding structure (102), and a locking element (104), having a non-uniform transverse configuration; wherein the corresponding structure (102) comprises a guide feature, such as a groove (1021) or wedge surface (1042), configured to receive the locking element (104), and wherein the locking element (104) is configured to rotate within said guide feature to generate a relative displacement that compresses the bias element (103) thereby causing lateral engagement between the connection element (101) and the corresponding structure (102) to ensure a secure locking.

2. The lock arrangement (10) according to claim 1, wherein the locking element (104) has a non-uniform configuration to exhibit a variation in its transverse dimension at specific locations in response to a relative displacement or operational motion.

3. The lock arrangement (10) according to claim 1, wherein the guide feature is a groove (1021) and wherein the locking element (104) is configured to interact with the bias element (103) in the groove (1021).

4. The lock arrangement (10) according to claim 2 or 3, wherein the non-uniform locking element (104) is a lockpin (1041) configured to interact with the bias element (103) to create a clamping force when rotated.

5. The lock arrangement (10) according to claim 4, wherein the non-uniform lockpin (1041) provided has an angled shank.

6. The lock arrangement (10) according to any one of the preceding claims,wherein the connection element (101) and / or the corresponding structure (102) includes a wedge (1042), as said guide feature, configured to interact with the bias element (103) to generate a clamping force, wherein rotation of the locking element (104) drives the connection element (101) and the corresponding structure (102) axially relative to one another to compress the bias element (103) by generating a transverse dimension displacement via the wedge (1042).

7. The lock arrangement (10) according to claim 1, wherein the connection element (101) is a shaft (1011) extending vertically, and the corresponding structure (102) is a hollow profile (1021) configured to slide over the shaft (1011), and wherein the locking element (104) is configured to interact with at least one coil spring (1031) via said guide feature to clamp the hollow profile (1021) together with the shaft (1011) when the locking element (104) is rotated.

8. The lock arrangement (10) according to claim 7, wherein the shaft (1011) includes a groove configured to guide and maintain aligned motion between the connection element (101) and the corresponding structure (102).

9. A locking arrangement system (30) comprising a plurality of lock arrangements (10) according to any of claim 1-8, wherein the lock arrangements (10) are arranged serially to cooperate with the locking element (104) of engagement for all said lock arrangements (10) at several locking points.

10. The locking arrangement system (30) according to claim 9, wherein each locking arrangement (10) comprises wedges (1042) integrated into the connecting element (101) and / or the corresponding structure (102), arranged in a series to secure the at least first and the at least second object at several securing locations.

11. The locking arrangement system (30) according to any one of claim 9 or 10, wherein each of the multiple lock arrangements (10) comprises a connection element (101) configured to be selectively connectable to different objects, such that different connection elements (101) along the substantially straight line can connect to different objects at multiple locking points.

12. The lock arrangement (10) according to any of the preceding claims, wherein the lock arrangement (10) comprises lightweight metallic materials, such as aluminum and magnesium.

13. The lock arrangement (10) according to any of the preceding claims, wherein a visual indicator is included to show when the lock is engaged.

14. The lock arrangement (10) according to any of the preceding claims, wherein the bias element (103) is a coil spring (1031).

15. The lock arrangement (10) according to any of the preceding claims, wherein the connection element (101) includes an alignment aid to facilitate alignment with the corresponding structure (102).

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